use repo[changeid] to get a changectx

hgext/acl.py

@@ -1,124 +1,124 b''
 # acl.py - changeset access control for mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 #
 # this hook allows to allow or deny access to parts of a repo when
 # taking incoming changesets.
 #
 # authorization is against local user name on system where hook is
 # run, not committer of original changeset (since that is easy to
 # spoof).
 #
 # acl hook is best to use if you use hgsh to set up restricted shells
 # for authenticated users to only push to / pull from.  not safe if
 # user has interactive shell access, because they can disable hook.
 # also not safe if remote users share one local account, because then
 # no way to tell remote users apart.
 #
 # to use, configure acl extension in hgrc like this:
 #
 #   [extensions]
 #   hgext.acl =
 #
 #   [hooks]
 #   pretxnchangegroup.acl = python:hgext.acl.hook
 #
 #   [acl]
 #   sources = serve        # check if source of incoming changes in this list
 #                          # ("serve" == ssh or http, "push", "pull", "bundle")
 #
 # allow and deny lists have subtree pattern (default syntax is glob)
 # on left, user names on right. deny list checked before allow list.
 #
 #   [acl.allow]
 #   # if acl.allow not present, all users allowed by default
 #   # empty acl.allow = no users allowed
 #   docs/** = doc_writer
 #   .hgtags = release_engineer
 #
 #   [acl.deny]
 #   # if acl.deny not present, no users denied by default
 #   # empty acl.deny = all users allowed
 #   glob pattern = user4, user5
 #   ** = user6
 
 from mercurial.i18n import _
 from mercurial.node import bin, short
 from mercurial import util
 import getpass
 
 class checker(object):
     '''acl checker.'''
 
     def buildmatch(self, key):
         '''return tuple of (match function, list enabled).'''
         if not self.ui.has_section(key):
             self.ui.debug(_('acl: %s not enabled\n') % key)
             return None, False
 
         thisuser = self.getuser()
         pats = [pat for pat, users in self.ui.configitems(key)
                 if thisuser in users.replace(',', ' ').split()]
         self.ui.debug(_('acl: %s enabled, %d entries for user %s\n') %
                       (key, len(pats), thisuser))
         if pats:
             match = util.matcher(self.repo.root, names=pats)[1]
         else:
             match = util.never
         return match, True
 
     def getuser(self):
         '''return name of authenticated user.'''
         return self.user
 
     def __init__(self, ui, repo):
         self.ui = ui
         self.repo = repo
         self.user = getpass.getuser()
         cfg = self.ui.config('acl', 'config')
         if cfg:
             self.ui.readsections(cfg, 'acl.allow', 'acl.deny')
         self.allow, self.allowable = self.buildmatch('acl.allow')
         self.deny, self.deniable = self.buildmatch('acl.deny')
 
     def skipsource(self, source):
         '''true if incoming changes from this source should be skipped.'''
         ok_sources = self.ui.config('acl', 'sources', 'serve').split()
         return source not in ok_sources
 
     def check(self, node):
         '''return if access allowed, raise exception if not.'''
-        files = self.repo.changectx(node).files()
+        files = self.repo[node].files()
         if self.deniable:
             for f in files:
                 if self.deny(f):
                     self.ui.debug(_('acl: user %s denied on %s\n') %
                                   (self.getuser(), f))
                     raise util.Abort(_('acl: access denied for changeset %s') %
                                      short(node))
         if self.allowable:
             for f in files:
                 if not self.allow(f):
                     self.ui.debug(_('acl: user %s not allowed on %s\n') %
                                   (self.getuser(), f))
                     raise util.Abort(_('acl: access denied for changeset %s') %
                                      short(node))
         self.ui.debug(_('acl: allowing changeset %s\n') % short(node))
 
 def hook(ui, repo, hooktype, node=None, source=None, **kwargs):
     if hooktype != 'pretxnchangegroup':
         raise util.Abort(_('config error - hook type "%s" cannot stop '
                            'incoming changesets') % hooktype)
 
     c = checker(ui, repo)
     if c.skipsource(source):
         ui.debug(_('acl: changes have source "%s" - skipping\n') % source)
         return
 
     start = repo.changelog.rev(bin(node))
     end = repo.changelog.count()
     for rev in xrange(start, end):
         c.check(repo.changelog.node(rev))

hgext/bugzilla.py

@@ -1,311 +1,311 b''
 # bugzilla.py - bugzilla integration for mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 #
 # hook extension to update comments of bugzilla bugs when changesets
 # that refer to bugs by id are seen.  this hook does not change bug
 # status, only comments.
 #
 # to configure, add items to '[bugzilla]' section of hgrc.
 #
 # to use, configure bugzilla extension and enable like this:
 #
 #   [extensions]
 #   hgext.bugzilla =
 #
 #   [hooks]
 #   # run bugzilla hook on every change pulled or pushed in here
 #   incoming.bugzilla = python:hgext.bugzilla.hook
 #
 # config items:
 #
 # section name is 'bugzilla'.
 #  [bugzilla]
 #
 # REQUIRED:
 #   host = bugzilla # mysql server where bugzilla database lives
 #   password = **   # user's password
 #   version = 2.16  # version of bugzilla installed
 #
 # OPTIONAL:
 #   bzuser = ...    # fallback bugzilla user name to record comments with
 #   db = bugs       # database to connect to
 #   notify = ...    # command to run to get bugzilla to send mail
 #   regexp = ...    # regexp to match bug ids (must contain one "()" group)
 #   strip = 0       # number of slashes to strip for url paths
 #   style = ...     # style file to use when formatting comments
 #   template = ...  # template to use when formatting comments
 #   timeout = 5     # database connection timeout (seconds)
 #   user = bugs     # user to connect to database as
 #   [web]
 #   baseurl = http://hgserver/... # root of hg web site for browsing commits
 #
 # if hg committer names are not same as bugzilla user names, use
 # "usermap" feature to map from committer email to bugzilla user name.
 # usermap can be in hgrc or separate config file.
 #
 #   [bugzilla]
 #   usermap = filename # cfg file with "committer"="bugzilla user" info
 #   [usermap]
 #   committer_email = bugzilla_user_name
 
 from mercurial.i18n import _
 from mercurial.node import short
 from mercurial import cmdutil, templater, util
 import re, time
 
 MySQLdb = None
 
 def buglist(ids):
     return '(' + ','.join(map(str, ids)) + ')'
 
 class bugzilla_2_16(object):
     '''support for bugzilla version 2.16.'''
 
     def __init__(self, ui):
         self.ui = ui
         host = self.ui.config('bugzilla', 'host', 'localhost')
         user = self.ui.config('bugzilla', 'user', 'bugs')
         passwd = self.ui.config('bugzilla', 'password')
         db = self.ui.config('bugzilla', 'db', 'bugs')
         timeout = int(self.ui.config('bugzilla', 'timeout', 5))
         usermap = self.ui.config('bugzilla', 'usermap')
         if usermap:
             self.ui.readsections(usermap, 'usermap')
         self.ui.note(_('connecting to %s:%s as %s, password %s\n') %
                      (host, db, user, '*' * len(passwd)))
         self.conn = MySQLdb.connect(host=host, user=user, passwd=passwd,
                                     db=db, connect_timeout=timeout)
         self.cursor = self.conn.cursor()
         self.run('select fieldid from fielddefs where name = "longdesc"')
         ids = self.cursor.fetchall()
         if len(ids) != 1:
             raise util.Abort(_('unknown database schema'))
         self.longdesc_id = ids[0][0]
         self.user_ids = {}
 
     def run(self, *args, **kwargs):
         '''run a query.'''
         self.ui.note(_('query: %s %s\n') % (args, kwargs))
         try:
             self.cursor.execute(*args, **kwargs)
         except MySQLdb.MySQLError, err:
             self.ui.note(_('failed query: %s %s\n') % (args, kwargs))
             raise
 
     def filter_real_bug_ids(self, ids):
         '''filter not-existing bug ids from list.'''
         self.run('select bug_id from bugs where bug_id in %s' % buglist(ids))
         ids = [c[0] for c in self.cursor.fetchall()]
         ids.sort()
         return ids
 
     def filter_unknown_bug_ids(self, node, ids):
         '''filter bug ids from list that already refer to this changeset.'''
 
         self.run('''select bug_id from longdescs where
                     bug_id in %s and thetext like "%%%s%%"''' %
                  (buglist(ids), short(node)))
         unknown = dict.fromkeys(ids)
         for (id,) in self.cursor.fetchall():
             self.ui.status(_('bug %d already knows about changeset %s\n') %
                            (id, short(node)))
             unknown.pop(id, None)
         ids = unknown.keys()
         ids.sort()
         return ids
 
     def notify(self, ids):
         '''tell bugzilla to send mail.'''
 
         self.ui.status(_('telling bugzilla to send mail:\n'))
         for id in ids:
             self.ui.status(_('  bug %s\n') % id)
             cmd = self.ui.config('bugzilla', 'notify',
                                'cd /var/www/html/bugzilla && '
                                './processmail %s [e-mail]') % id
             fp = util.popen('(%s) 2>&1' % cmd)
             out = fp.read()
             ret = fp.close()
             if ret:
                 self.ui.warn(out)
                 raise util.Abort(_('bugzilla notify command %s') %
                                  util.explain_exit(ret)[0])
         self.ui.status(_('done\n'))
 
     def get_user_id(self, user):
         '''look up numeric bugzilla user id.'''
         try:
             return self.user_ids[user]
         except KeyError:
             try:
                 userid = int(user)
             except ValueError:
                 self.ui.note(_('looking up user %s\n') % user)
                 self.run('''select userid from profiles
                             where login_name like %s''', user)
                 all = self.cursor.fetchall()
                 if len(all) != 1:
                     raise KeyError(user)
                 userid = int(all[0][0])
             self.user_ids[user] = userid
             return userid
 
     def map_committer(self, user):
         '''map name of committer to bugzilla user name.'''
         for committer, bzuser in self.ui.configitems('usermap'):
             if committer.lower() == user.lower():
                 return bzuser
         return user
 
     def add_comment(self, bugid, text, committer):
         '''add comment to bug. try adding comment as committer of
         changeset, otherwise as default bugzilla user.'''
         user = self.map_committer(committer)
         try:
             userid = self.get_user_id(user)
         except KeyError:
             try:
                 defaultuser = self.ui.config('bugzilla', 'bzuser')
                 if not defaultuser:
                     raise util.Abort(_('cannot find bugzilla user id for %s') %
                                      user)
                 userid = self.get_user_id(defaultuser)
             except KeyError:
                 raise util.Abort(_('cannot find bugzilla user id for %s or %s') %
                                  (user, defaultuser))
         now = time.strftime('%Y-%m-%d %H:%M:%S')
         self.run('''insert into longdescs
                     (bug_id, who, bug_when, thetext)
                     values (%s, %s, %s, %s)''',
                  (bugid, userid, now, text))
         self.run('''insert into bugs_activity (bug_id, who, bug_when, fieldid)
                     values (%s, %s, %s, %s)''',
                  (bugid, userid, now, self.longdesc_id))
 
 class bugzilla(object):
     # supported versions of bugzilla. different versions have
     # different schemas.
     _versions = {
         '2.16': bugzilla_2_16,
         }
 
     _default_bug_re = (r'bugs?\s*,?\s*(?:#|nos?\.?|num(?:ber)?s?)?\s*'
                        r'((?:\d+\s*(?:,?\s*(?:and)?)?\s*)+)')
 
     _bz = None
 
     def __init__(self, ui, repo):
         self.ui = ui
         self.repo = repo
 
     def bz(self):
         '''return object that knows how to talk to bugzilla version in
         use.'''
 
         if bugzilla._bz is None:
             bzversion = self.ui.config('bugzilla', 'version')
             try:
                 bzclass = bugzilla._versions[bzversion]
             except KeyError:
                 raise util.Abort(_('bugzilla version %s not supported') %
                                  bzversion)
             bugzilla._bz = bzclass(self.ui)
         return bugzilla._bz
 
     def __getattr__(self, key):
         return getattr(self.bz(), key)
 
     _bug_re = None
     _split_re = None
 
     def find_bug_ids(self, ctx):
         '''find valid bug ids that are referred to in changeset
         comments and that do not already have references to this
         changeset.'''
 
         if bugzilla._bug_re is None:
             bugzilla._bug_re = re.compile(
                 self.ui.config('bugzilla', 'regexp', bugzilla._default_bug_re),
                 re.IGNORECASE)
             bugzilla._split_re = re.compile(r'\D+')
         start = 0
         ids = {}
         while True:
             m = bugzilla._bug_re.search(ctx.description(), start)
             if not m:
                 break
             start = m.end()
             for id in bugzilla._split_re.split(m.group(1)):
                 if not id: continue
                 ids[int(id)] = 1
         ids = ids.keys()
         if ids:
             ids = self.filter_real_bug_ids(ids)
         if ids:
             ids = self.filter_unknown_bug_ids(ctx.node(), ids)
         return ids
 
     def update(self, bugid, ctx):
         '''update bugzilla bug with reference to changeset.'''
 
         def webroot(root):
             '''strip leading prefix of repo root and turn into
             url-safe path.'''
             count = int(self.ui.config('bugzilla', 'strip', 0))
             root = util.pconvert(root)
             while count > 0:
                 c = root.find('/')
                 if c == -1:
                     break
                 root = root[c+1:]
                 count -= 1
             return root
 
         mapfile = self.ui.config('bugzilla', 'style')
         tmpl = self.ui.config('bugzilla', 'template')
         t = cmdutil.changeset_templater(self.ui, self.repo,
                                         False, mapfile, False)
         if not mapfile and not tmpl:
             tmpl = _('changeset {node|short} in repo {root} refers '
                      'to bug {bug}.\ndetails:\n\t{desc|tabindent}')
         if tmpl:
             tmpl = templater.parsestring(tmpl, quoted=False)
             t.use_template(tmpl)
         self.ui.pushbuffer()
         t.show(changenode=ctx.node(), changes=ctx.changeset(),
                bug=str(bugid),
                hgweb=self.ui.config('web', 'baseurl'),
                root=self.repo.root,
                webroot=webroot(self.repo.root))
         data = self.ui.popbuffer()
         self.add_comment(bugid, data, util.email(ctx.user()))
 
 def hook(ui, repo, hooktype, node=None, **kwargs):
     '''add comment to bugzilla for each changeset that refers to a
     bugzilla bug id. only add a comment once per bug, so same change
     seen multiple times does not fill bug with duplicate data.'''
     try:
         import MySQLdb as mysql
         global MySQLdb
         MySQLdb = mysql
     except ImportError, err:
         raise util.Abort(_('python mysql support not available: %s') % err)
 
     if node is None:
         raise util.Abort(_('hook type %s does not pass a changeset id') %
                          hooktype)
     try:
         bz = bugzilla(ui, repo)
-        ctx = repo.changectx(node)
+        ctx = repo[node]
         ids = bz.find_bug_ids(ctx)
         if ids:
             for id in ids:
                 bz.update(id, ctx)
             bz.notify(ids)
     except MySQLdb.MySQLError, err:
         raise util.Abort(_('database error: %s') % err[1])
 

hgext/children.py

@@ -1,41 +1,41 b''
 # Mercurial extension to provide the 'hg children' command
 #
 # Copyright 2007 by Intevation GmbH <[e-mail]>
 # Author(s):
 # Thomas Arendsen Hein <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from mercurial import cmdutil
 from mercurial.commands import templateopts
 from mercurial.i18n import _
 
 
 def children(ui, repo, file_=None, **opts):
     """show the children of the given or working dir revision
 
     Print the children of the working directory's revisions.
     If a revision is given via --rev, the children of that revision
     will be printed. If a file argument is given, revision in
     which the file was last changed (after the working directory
     revision or the argument to --rev if given) is printed.
     """
     rev = opts.get('rev')
     if file_:
         ctx = repo.filectx(file_, changeid=rev)
     else:
-        ctx = repo.changectx(rev)
+        ctx = repo[rev]
 
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for node in [cp.node() for cp in ctx.children()]:
         displayer.show(changenode=node)
 
 
 cmdtable = {
     "children":
         (children,
          [('r', 'rev', '', _('show children of the specified rev')),
          ] + templateopts,
          _('hg children [-r REV] [FILE]')),
 }

hgext/convert/hg.py

@@ -1,290 +1,290 b''
 # hg backend for convert extension
 
 # Notes for hg->hg conversion:
 #
 # * Old versions of Mercurial didn't trim the whitespace from the ends
 #   of commit messages, but new versions do.  Changesets created by
 #   those older versions, then converted, may thus have different
 #   hashes for changesets that are otherwise identical.
 #
 # * By default, the source revision is stored in the converted
 #   revision.  This will cause the converted revision to have a
 #   different identity than the source.  To avoid this, use the
 #   following option: "--config convert.hg.saverev=false"
 
 
 import os, time
 from mercurial.i18n import _
 from mercurial.repo import RepoError
 from mercurial.node import bin, hex, nullid
 from mercurial import hg, revlog, util, context
 
 from common import NoRepo, commit, converter_source, converter_sink
 
 class mercurial_sink(converter_sink):
     def __init__(self, ui, path):
         converter_sink.__init__(self, ui, path)
         self.branchnames = ui.configbool('convert', 'hg.usebranchnames', True)
         self.clonebranches = ui.configbool('convert', 'hg.clonebranches', False)
         self.tagsbranch = ui.config('convert', 'hg.tagsbranch', 'default')
         self.lastbranch = None
         if os.path.isdir(path) and len(os.listdir(path)) > 0:
             try:
                 self.repo = hg.repository(self.ui, path)
                 if not self.repo.local():
                     raise NoRepo(_('%s is not a local Mercurial repo') % path)
             except RepoError, err:
                 ui.print_exc()
                 raise NoRepo(err.args[0])
         else:
             try:
                 ui.status(_('initializing destination %s repository\n') % path)
                 self.repo = hg.repository(self.ui, path, create=True)
                 if not self.repo.local():
                     raise NoRepo(_('%s is not a local Mercurial repo') % path)
                 self.created.append(path)
             except RepoError, err:
                 ui.print_exc()
                 raise NoRepo("could not create hg repo %s as sink" % path)
         self.lock = None
         self.wlock = None
         self.filemapmode = False
 
     def before(self):
         self.ui.debug(_('run hg sink pre-conversion action\n'))
         self.wlock = self.repo.wlock()
         self.lock = self.repo.lock()
 
     def after(self):
         self.ui.debug(_('run hg sink post-conversion action\n'))
         self.lock = None
         self.wlock = None
 
     def revmapfile(self):
         return os.path.join(self.path, ".hg", "shamap")
 
     def authorfile(self):
         return os.path.join(self.path, ".hg", "authormap")
 
     def getheads(self):
         h = self.repo.changelog.heads()
         return [ hex(x) for x in h ]
 
     def setbranch(self, branch, pbranches):
         if not self.clonebranches:
             return
 
         setbranch = (branch != self.lastbranch)
         self.lastbranch = branch
         if not branch:
             branch = 'default'
         pbranches = [(b[0], b[1] and b[1] or 'default') for b in pbranches]
         pbranch = pbranches and pbranches[0][1] or 'default'
 
         branchpath = os.path.join(self.path, branch)
         if setbranch:
             self.after()
             try:
                 self.repo = hg.repository(self.ui, branchpath)
             except:
                 self.repo = hg.repository(self.ui, branchpath, create=True)
             self.before()
 
         # pbranches may bring revisions from other branches (merge parents)
         # Make sure we have them, or pull them.
         missings = {}
         for b in pbranches:
             try:
                 self.repo.lookup(b[0])
             except:
                 missings.setdefault(b[1], []).append(b[0])
 
         if missings:
             self.after()
             for pbranch, heads in missings.iteritems():
                 pbranchpath = os.path.join(self.path, pbranch)
                 prepo = hg.repository(self.ui, pbranchpath)
                 self.ui.note(_('pulling from %s into %s\n') % (pbranch, branch))
                 self.repo.pull(prepo, [prepo.lookup(h) for h in heads])
             self.before()
 
     def putcommit(self, files, copies, parents, commit, source):
 
         files = dict(files)
         def getfilectx(repo, memctx, f):
             v = files[f]
             data = source.getfile(f, v)
             e = source.getmode(f, v)
             return context.memfilectx(f, data, 'l' in e, 'x' in e, copies.get(f))
 
         pl = []
         for p in parents:
             if p not in pl:
                 pl.append(p)
         parents = pl
         nparents = len(parents)
         if self.filemapmode and nparents == 1:
             m1node = self.repo.changelog.read(bin(parents[0]))[0]
             parent = parents[0]
 
         if len(parents) < 2: parents.append("0" * 40)
         if len(parents) < 2: parents.append("0" * 40)
         p2 = parents.pop(0)
 
         text = commit.desc
         extra = commit.extra.copy()
         if self.branchnames and commit.branch:
             extra['branch'] = commit.branch
         if commit.rev:
             extra['convert_revision'] = commit.rev
 
         while parents:
             p1 = p2
             p2 = parents.pop(0)
             ctx = context.memctx(self.repo, (p1, p2), text, files.keys(), getfilectx,
                                  commit.author, commit.date, extra)
             a = self.repo.commitctx(ctx)
             text = "(octopus merge fixup)\n"
             p2 = hex(self.repo.changelog.tip())
 
         if self.filemapmode and nparents == 1:
             man = self.repo.manifest
             mnode = self.repo.changelog.read(bin(p2))[0]
             if not man.cmp(m1node, man.revision(mnode)):
                 self.repo.rollback()
                 return parent
         return p2
 
     def puttags(self, tags):
          try:
-             parentctx = self.repo.changectx(self.tagsbranch)
+             parentctx = self.repo[self.tagsbranch]
              tagparent = parentctx.node()
          except RepoError, inst:
              parentctx = None
              tagparent = nullid
 
          try:
              old = parentctx.filectx(".hgtags").data()
              oldlines = old.splitlines(1)
              oldlines.sort()
          except:
              oldlines = []
 
          newlines = [("%s %s\n" % (tags[tag], tag)) for tag in tags.keys()]
          newlines.sort()
 
          if newlines == oldlines:
              return None
          data = "".join(newlines)
 
          def getfilectx(repo, memctx, f):
             return context.memfilectx(f, data, False, False, None)
 
          self.ui.status("updating tags\n")
          date = "%s 0" % int(time.mktime(time.gmtime()))
          extra = {'branch': self.tagsbranch}
          ctx = context.memctx(self.repo, (tagparent, None), "update tags",
                               [".hgtags"], getfilectx, "convert-repo", date,
                               extra)
          self.repo.commitctx(ctx)
          return hex(self.repo.changelog.tip())
 
     def setfilemapmode(self, active):
         self.filemapmode = active
 
 class mercurial_source(converter_source):
     def __init__(self, ui, path, rev=None):
         converter_source.__init__(self, ui, path, rev)
         self.saverev = ui.configbool('convert', 'hg.saverev', True)
         try:
             self.repo = hg.repository(self.ui, path)
             # try to provoke an exception if this isn't really a hg
             # repo, but some other bogus compatible-looking url
             if not self.repo.local():
                 raise RepoError()
         except RepoError:
             ui.print_exc()
             raise NoRepo("%s is not a local Mercurial repo" % path)
         self.lastrev = None
         self.lastctx = None
         self._changescache = None
         self.convertfp = None
 
     def changectx(self, rev):
         if self.lastrev != rev:
-            self.lastctx = self.repo.changectx(rev)
+            self.lastctx = self.repo[rev]
             self.lastrev = rev
         return self.lastctx
 
     def getheads(self):
         if self.rev:
-            return [hex(self.repo.changectx(self.rev).node())]
+            return [hex(self.repo[self.rev].node())]
         else:
             return [hex(node) for node in self.repo.heads()]
 
     def getfile(self, name, rev):
         try:
-            return self.changectx(rev).filectx(name).data()
+            return self.changectx(rev)[name].data()
         except revlog.LookupError, err:
             raise IOError(err)
 
     def getmode(self, name, rev):
         m = self.changectx(rev).manifest()
         return (m.execf(name) and 'x' or '') + (m.linkf(name) and 'l' or '')
 
     def getchanges(self, rev):
         ctx = self.changectx(rev)
         if self._changescache and self._changescache[0] == rev:
             m, a, r = self._changescache[1]
         else:
             m, a, r = self.repo.status(ctx.parents()[0].node(), ctx.node())[:3]
         changes = [(name, rev) for name in m + a + r]
         changes.sort()
         return (changes, self.getcopies(ctx, m + a))
 
     def getcopies(self, ctx, files):
         copies = {}
         for name in files:
             try:
                 copies[name] = ctx.filectx(name).renamed()[0]
             except TypeError:
                 pass
         return copies
 
     def getcommit(self, rev):
         ctx = self.changectx(rev)
         parents = [hex(p.node()) for p in ctx.parents() if p.node() != nullid]
         if self.saverev:
             crev = rev
         else:
             crev = None
         return commit(author=ctx.user(), date=util.datestr(ctx.date()),
                       desc=ctx.description(), rev=crev, parents=parents,
                       branch=ctx.branch(), extra=ctx.extra())
 
     def gettags(self):
         tags = [t for t in self.repo.tagslist() if t[0] != 'tip']
         return dict([(name, hex(node)) for name, node in tags])
 
     def getchangedfiles(self, rev, i):
         ctx = self.changectx(rev)
         i = i or 0
         changes = self.repo.status(ctx.parents()[i].node(), ctx.node())[:3]
 
         if i == 0:
             self._changescache = (rev, changes)
 
         return changes[0] + changes[1] + changes[2]
 
     def converted(self, rev, destrev):
         if self.convertfp is None:
             self.convertfp = open(os.path.join(self.path, '.hg', 'shamap'),
                                   'a')
         self.convertfp.write('%s %s\n' % (destrev, rev))
         self.convertfp.flush()
 
     def before(self):
         self.ui.debug(_('run hg source pre-conversion action\n'))
 
     def after(self):
         self.ui.debug(_('run hg source post-conversion action\n'))

hgext/extdiff.py

@@ -1,251 +1,251 b''
 # extdiff.py - external diff program support for mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 '''
 The `extdiff' Mercurial extension allows you to use external programs
 to compare revisions, or revision with working dir.  The external diff
 programs are called with a configurable set of options and two
 non-option arguments: paths to directories containing snapshots of
 files to compare.
 
 To enable this extension:
 
   [extensions]
   hgext.extdiff =
 
 The `extdiff' extension also allows to configure new diff commands, so
 you do not need to type "hg extdiff -p kdiff3" always.
 
   [extdiff]
   # add new command that runs GNU diff(1) in 'context diff' mode
   cdiff = gdiff -Nprc5
   ## or the old way:
   #cmd.cdiff = gdiff
   #opts.cdiff = -Nprc5
 
   # add new command called vdiff, runs kdiff3
   vdiff = kdiff3
 
   # add new command called meld, runs meld (no need to name twice)
   meld =
 
   # add new command called vimdiff, runs gvimdiff with DirDiff plugin
   #(see http://www.vim.org/scripts/script.php?script_id=102)
   # Non english user, be sure to put "let g:DirDiffDynamicDiffText = 1" in
   # your .vimrc
   vimdiff = gvim -f '+next' '+execute "DirDiff" argv(0) argv(1)'
 
 You can use -I/-X and list of file or directory names like normal
 "hg diff" command.  The `extdiff' extension makes snapshots of only
 needed files, so running the external diff program will actually be
 pretty fast (at least faster than having to compare the entire tree).
 '''
 
 from mercurial.i18n import _
 from mercurial.node import short
 from mercurial import cmdutil, util, commands
 import os, shlex, shutil, tempfile
 
 def snapshot_node(ui, repo, files, node, tmproot):
     '''snapshot files as of some revision'''
-    mf = repo.changectx(node).manifest()
     dirname = os.path.basename(repo.root)
     if dirname == "":
         dirname = "root"
     dirname = '%s.%s' % (dirname, short(node))
     base = os.path.join(tmproot, dirname)
     os.mkdir(base)
     ui.note(_('making snapshot of %d files from rev %s\n') %
             (len(files), short(node)))
+    ctx = repo[node]
     for fn in files:
-        if not fn in mf:
+        wfn = util.pconvert(fn)
+        if not wfn in ctx:
             # skipping new file after a merge ?
             continue
-        wfn = util.pconvert(fn)
         ui.note('  %s\n' % wfn)
         dest = os.path.join(base, wfn)
         destdir = os.path.dirname(dest)
         if not os.path.isdir(destdir):
             os.makedirs(destdir)
-        data = repo.wwritedata(wfn, repo.file(wfn).read(mf[wfn]))
+        data = repo.wwritedata(wfn, ctx[wfn].data())
         open(dest, 'wb').write(data)
     return dirname
 
 
 def snapshot_wdir(ui, repo, files, tmproot):
     '''snapshot files from working directory.
     if not using snapshot, -I/-X does not work and recursive diff
     in tools like kdiff3 and meld displays too many files.'''
     repo_root = repo.root
 
     dirname = os.path.basename(repo_root)
     if dirname == "":
         dirname = "root"
     base = os.path.join(tmproot, dirname)
     os.mkdir(base)
     ui.note(_('making snapshot of %d files from working dir\n') %
             (len(files)))
 
     fns_and_mtime = []
 
     for fn in files:
         wfn = util.pconvert(fn)
         ui.note('  %s\n' % wfn)
         dest = os.path.join(base, wfn)
         destdir = os.path.dirname(dest)
         if not os.path.isdir(destdir):
             os.makedirs(destdir)
 
         fp = open(dest, 'wb')
         for chunk in util.filechunkiter(repo.wopener(wfn)):
             fp.write(chunk)
         fp.close()
 
         fns_and_mtime.append((dest, os.path.join(repo_root, fn),
             os.path.getmtime(dest)))
 
 
     return dirname, fns_and_mtime
 
 
 def dodiff(ui, repo, diffcmd, diffopts, pats, opts):
     '''Do the actuall diff:
 
     - copy to a temp structure if diffing 2 internal revisions
     - copy to a temp structure if diffing working revision with
       another one and more than 1 file is changed
     - just invoke the diff for a single file in the working dir
     '''
     node1, node2 = cmdutil.revpair(repo, opts['rev'])
     matcher = cmdutil.match(repo, pats, opts)
     modified, added, removed, deleted, unknown = repo.status(
         node1, node2, matcher)[:5]
     if not (modified or added or removed):
         return 0
 
     tmproot = tempfile.mkdtemp(prefix='extdiff.')
     dir2root = ''
     try:
         # Always make a copy of node1
         dir1 = snapshot_node(ui, repo, modified + removed, node1, tmproot)
         changes = len(modified) + len(removed) + len(added)
 
         fns_and_mtime = []
 
         # If node2 in not the wc or there is >1 change, copy it
         if node2:
             dir2 = snapshot_node(ui, repo, modified + added, node2, tmproot)
         elif changes > 1:
             #we only actually need to get the files to copy back to the working
             #dir in this case (because the other cases are: diffing 2 revisions
             #or single file -- in which case the file is already directly passed
             #to the diff tool).
             dir2, fns_and_mtime = snapshot_wdir(ui, repo, modified + added, tmproot)
         else:
             # This lets the diff tool open the changed file directly
             dir2 = ''
             dir2root = repo.root
 
         # If only one change, diff the files instead of the directories
         if changes == 1 :
             if len(modified):
                 dir1 = os.path.join(dir1, util.localpath(modified[0]))
                 dir2 = os.path.join(dir2root, dir2, util.localpath(modified[0]))
             elif len(removed) :
                 dir1 = os.path.join(dir1, util.localpath(removed[0]))
                 dir2 = os.devnull
             else:
                 dir1 = os.devnull
                 dir2 = os.path.join(dir2root, dir2, util.localpath(added[0]))
 
         cmdline = ('%s %s %s %s' %
                    (util.shellquote(diffcmd), ' '.join(diffopts),
                     util.shellquote(dir1), util.shellquote(dir2)))
         ui.debug('running %r in %s\n' % (cmdline, tmproot))
         util.system(cmdline, cwd=tmproot)
 
         for copy_fn, working_fn, mtime in fns_and_mtime:
             if os.path.getmtime(copy_fn) != mtime:
                 ui.debug('File changed while diffing. '
                          'Overwriting: %s (src: %s)\n' % (working_fn, copy_fn))
                 util.copyfile(copy_fn, working_fn)
 
         return 1
     finally:
         ui.note(_('cleaning up temp directory\n'))
         shutil.rmtree(tmproot)
 
 def extdiff(ui, repo, *pats, **opts):
     '''use external program to diff repository (or selected files)
 
     Show differences between revisions for the specified files, using
     an external program.  The default program used is diff, with
     default options "-Npru".
 
     To select a different program, use the -p option.  The program
     will be passed the names of two directories to compare.  To pass
     additional options to the program, use the -o option.  These will
     be passed before the names of the directories to compare.
 
     When two revision arguments are given, then changes are
     shown between those revisions. If only one revision is
     specified then that revision is compared to the working
     directory, and, when no revisions are specified, the
     working directory files are compared to its parent.'''
     program = opts['program'] or 'diff'
     if opts['program']:
         option = opts['option']
     else:
         option = opts['option'] or ['-Npru']
     return dodiff(ui, repo, program, option, pats, opts)
 
 cmdtable = {
     "extdiff":
     (extdiff,
      [('p', 'program', '', _('comparison program to run')),
       ('o', 'option', [], _('pass option to comparison program')),
       ('r', 'rev', [], _('revision')),
      ] + commands.walkopts,
      _('hg extdiff [OPT]... [FILE]...')),
     }
 
 def uisetup(ui):
     for cmd, path in ui.configitems('extdiff'):
         if cmd.startswith('cmd.'):
             cmd = cmd[4:]
             if not path: path = cmd
             diffopts = ui.config('extdiff', 'opts.' + cmd, '')
             diffopts = diffopts and [diffopts] or []
         elif cmd.startswith('opts.'):
             continue
         else:
             # command = path opts
             if path:
                 diffopts = shlex.split(path)
                 path = diffopts.pop(0)
             else:
                 path, diffopts = cmd, []
         def save(cmd, path, diffopts):
             '''use closure to save diff command to use'''
             def mydiff(ui, repo, *pats, **opts):
                 return dodiff(ui, repo, path, diffopts, pats, opts)
             mydiff.__doc__ = '''use %(path)s to diff repository (or selected files)
 
             Show differences between revisions for the specified
             files, using the %(path)s program.
 
             When two revision arguments are given, then changes are
             shown between those revisions. If only one revision is
             specified then that revision is compared to the working
             directory, and, when no revisions are specified, the
             working directory files are compared to its parent.''' % {
                 'path': util.uirepr(path),
                 }
             return mydiff
         cmdtable[cmd] = (save(cmd, path, diffopts),
                          cmdtable['extdiff'][1][1:],
                          _('hg %s [OPTION]... [FILE]...') % cmd)

hgext/hgk.py

@@ -1,357 +1,357 b''
 # Minimal support for git commands on an hg repository
 #
 # Copyright 2005, 2006 Chris Mason <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 '''browsing the repository in a graphical way
 
 The hgk extension allows browsing the history of a repository in a
 graphical way. It requires Tcl/Tk version 8.4 or later. (Tcl/Tk is
 not distributed with Mercurial.)
 
 hgk consists of two parts: a Tcl script that does the displaying and
 querying of information, and an extension to mercurial named hgk.py,
 which provides hooks for hgk to get information. hgk can be found in
 the contrib directory, and hgk.py can be found in the hgext directory.
 
 To load the hgext.py extension, add it to your .hgrc file (you have
 to use your global $HOME/.hgrc file, not one in a repository). You
 can specify an absolute path:
 
   [extensions]
   hgk=/usr/local/lib/hgk.py
 
 Mercurial can also scan the default python library path for a file
 named 'hgk.py' if you set hgk empty:
 
   [extensions]
   hgk=
 
 The hg view command will launch the hgk Tcl script. For this command
 to work, hgk must be in your search path. Alternately, you can
 specify the path to hgk in your .hgrc file:
 
   [hgk]
   path=/location/of/hgk
 
 hgk can make use of the extdiff extension to visualize revisions.
 Assuming you had already configured extdiff vdiff command, just add:
 
   [hgk]
   vdiff=vdiff
 
 Revisions context menu will now display additional entries to fire
 vdiff on hovered and selected revisions.'''
 
 import os
 from mercurial import commands, util, patch, revlog, cmdutil
 from mercurial.node import nullid, nullrev, short
 
 def difftree(ui, repo, node1=None, node2=None, *files, **opts):
     """diff trees from two commits"""
     def __difftree(repo, node1, node2, files=[]):
         assert node2 is not None
-        mmap = repo.changectx(node1).manifest()
-        mmap2 = repo.changectx(node2).manifest()
+        mmap = repo[node1].manifest()
+        mmap2 = repo[node2].manifest()
         m = cmdutil.match(repo, files)
         status = repo.status(node1, node2, match=m)[:5]
         modified, added, removed, deleted, unknown = status
 
         empty = short(nullid)
 
         for f in modified:
             # TODO get file permissions
             ui.write(":100664 100664 %s %s M\t%s\t%s\n" %
                      (short(mmap[f]), short(mmap2[f]), f, f))
         for f in added:
             ui.write(":000000 100664 %s %s N\t%s\t%s\n" %
                      (empty, short(mmap2[f]), f, f))
         for f in removed:
             ui.write(":100664 000000 %s %s D\t%s\t%s\n" %
                      (short(mmap[f]), empty, f, f))
     ##
 
     while True:
         if opts['stdin']:
             try:
                 line = raw_input().split(' ')
                 node1 = line[0]
                 if len(line) > 1:
                     node2 = line[1]
                 else:
                     node2 = None
             except EOFError:
                 break
         node1 = repo.lookup(node1)
         if node2:
             node2 = repo.lookup(node2)
         else:
             node2 = node1
             node1 = repo.changelog.parents(node1)[0]
         if opts['patch']:
             if opts['pretty']:
                 catcommit(ui, repo, node2, "")
             m = cmdutil.match(repo, files)
             patch.diff(repo, node1, node2, match=m,
                        opts=patch.diffopts(ui, {'git': True}))
         else:
             __difftree(repo, node1, node2, files=files)
         if not opts['stdin']:
             break
 
 def catcommit(ui, repo, n, prefix, ctx=None):
     nlprefix = '\n' + prefix;
     if ctx is None:
-        ctx = repo.changectx(n)
+        ctx = repo[n]
     (p1, p2) = ctx.parents()
     ui.write("tree %s\n" % short(ctx.changeset()[0])) # use ctx.node() instead ??
     if p1: ui.write("parent %s\n" % short(p1.node()))
     if p2: ui.write("parent %s\n" % short(p2.node()))
     date = ctx.date()
     description = ctx.description().replace("\0", "")
     lines = description.splitlines()
     if lines and lines[-1].startswith('committer:'):
         committer = lines[-1].split(': ')[1].rstrip()
     else:
         committer = ctx.user()
 
     ui.write("author %s %s %s\n" % (ctx.user(), int(date[0]), date[1]))
     ui.write("committer %s %s %s\n" % (committer, int(date[0]), date[1]))
     ui.write("revision %d\n" % ctx.rev())
     ui.write("branch %s\n\n" % ctx.branch())
 
     if prefix != "":
         ui.write("%s%s\n" % (prefix, description.replace('\n', nlprefix).strip()))
     else:
         ui.write(description + "\n")
     if prefix:
         ui.write('\0')
 
 def base(ui, repo, node1, node2):
     """Output common ancestor information"""
     node1 = repo.lookup(node1)
     node2 = repo.lookup(node2)
     n = repo.changelog.ancestor(node1, node2)
     ui.write(short(n) + "\n")
 
 def catfile(ui, repo, type=None, r=None, **opts):
     """cat a specific revision"""
     # in stdin mode, every line except the commit is prefixed with two
     # spaces.  This way the our caller can find the commit without magic
     # strings
     #
     prefix = ""
     if opts['stdin']:
         try:
             (type, r) = raw_input().split(' ');
             prefix = "    "
         except EOFError:
             return
 
     else:
         if not type or not r:
             ui.warn("cat-file: type or revision not supplied\n")
             commands.help_(ui, 'cat-file')
 
     while r:
         if type != "commit":
             ui.warn("aborting hg cat-file only understands commits\n")
             return 1;
         n = repo.lookup(r)
         catcommit(ui, repo, n, prefix)
         if opts['stdin']:
             try:
                 (type, r) = raw_input().split(' ');
             except EOFError:
                 break
         else:
             break
 
 # git rev-tree is a confusing thing.  You can supply a number of
 # commit sha1s on the command line, and it walks the commit history
 # telling you which commits are reachable from the supplied ones via
 # a bitmask based on arg position.
 # you can specify a commit to stop at by starting the sha1 with ^
 def revtree(ui, args, repo, full="tree", maxnr=0, parents=False):
     def chlogwalk():
         count = repo.changelog.count()
         i = count
         l = [0] * 100
         chunk = 100
         while True:
             if chunk > i:
                 chunk = i
                 i = 0
             else:
                 i -= chunk
 
             for x in xrange(0, chunk):
                 if i + x >= count:
                     l[chunk - x:] = [0] * (chunk - x)
                     break
                 if full != None:
-                    l[x] = repo.changectx(i + x)
+                    l[x] = repo[i + x]
                     l[x].changeset() # force reading
                 else:
                     l[x] = 1
             for x in xrange(chunk-1, -1, -1):
                 if l[x] != 0:
                     yield (i + x, full != None and l[x] or None)
             if i == 0:
                 break
 
     # calculate and return the reachability bitmask for sha
     def is_reachable(ar, reachable, sha):
         if len(ar) == 0:
             return 1
         mask = 0
         for i in xrange(len(ar)):
             if sha in reachable[i]:
                 mask |= 1 << i
 
         return mask
 
     reachable = []
     stop_sha1 = []
     want_sha1 = []
     count = 0
 
     # figure out which commits they are asking for and which ones they
     # want us to stop on
     for i in xrange(len(args)):
         if args[i].startswith('^'):
             s = repo.lookup(args[i][1:])
             stop_sha1.append(s)
             want_sha1.append(s)
         elif args[i] != 'HEAD':
             want_sha1.append(repo.lookup(args[i]))
 
     # calculate the graph for the supplied commits
     for i in xrange(len(want_sha1)):
         reachable.append({});
         n = want_sha1[i];
         visit = [n];
         reachable[i][n] = 1
         while visit:
             n = visit.pop(0)
             if n in stop_sha1:
                 continue
             for p in repo.changelog.parents(n):
                 if p not in reachable[i]:
                     reachable[i][p] = 1
                     visit.append(p)
                 if p in stop_sha1:
                     continue
 
     # walk the repository looking for commits that are in our
     # reachability graph
     for i, ctx in chlogwalk():
         n = repo.changelog.node(i)
         mask = is_reachable(want_sha1, reachable, n)
         if mask:
             parentstr = ""
             if parents:
                 pp = repo.changelog.parents(n)
                 if pp[0] != nullid:
                     parentstr += " " + short(pp[0])
                 if pp[1] != nullid:
                     parentstr += " " + short(pp[1])
             if not full:
                 ui.write("%s%s\n" % (short(n), parentstr))
             elif full == "commit":
                 ui.write("%s%s\n" % (short(n), parentstr))
                 catcommit(ui, repo, n, '    ', ctx)
             else:
                 (p1, p2) = repo.changelog.parents(n)
                 (h, h1, h2) = map(short, (n, p1, p2))
                 (i1, i2) = map(repo.changelog.rev, (p1, p2))
 
                 date = ctx.date()[0]
                 ui.write("%s %s:%s" % (date, h, mask))
                 mask = is_reachable(want_sha1, reachable, p1)
                 if i1 != nullrev and mask > 0:
                     ui.write("%s:%s " % (h1, mask)),
                 mask = is_reachable(want_sha1, reachable, p2)
                 if i2 != nullrev and mask > 0:
                     ui.write("%s:%s " % (h2, mask))
                 ui.write("\n")
             if maxnr and count >= maxnr:
                 break
             count += 1
 
 def revparse(ui, repo, *revs, **opts):
     """Parse given revisions"""
     def revstr(rev):
         if rev == 'HEAD':
             rev = 'tip'
         return revlog.hex(repo.lookup(rev))
 
     for r in revs:
         revrange = r.split(':', 1)
         ui.write('%s\n' % revstr(revrange[0]))
         if len(revrange) == 2:
             ui.write('^%s\n' % revstr(revrange[1]))
 
 # git rev-list tries to order things by date, and has the ability to stop
 # at a given commit without walking the whole repo.  TODO add the stop
 # parameter
 def revlist(ui, repo, *revs, **opts):
     """print revisions"""
     if opts['header']:
         full = "commit"
     else:
         full = None
     copy = [x for x in revs]
     revtree(ui, copy, repo, full, opts['max_count'], opts['parents'])
 
 def config(ui, repo, **opts):
     """print extension options"""
     def writeopt(name, value):
         ui.write('k=%s\nv=%s\n' % (name, value))
 
     writeopt('vdiff', ui.config('hgk', 'vdiff', ''))
 
 
 def view(ui, repo, *etc, **opts):
     "start interactive history viewer"
     os.chdir(repo.root)
     optstr = ' '.join(['--%s %s' % (k, v) for k, v in opts.iteritems() if v])
     cmd = ui.config("hgk", "path", "hgk") + " %s %s" % (optstr, " ".join(etc))
     ui.debug("running %s\n" % cmd)
     util.system(cmd)
 
 cmdtable = {
     "^view":
         (view,
          [('l', 'limit', '', 'limit number of changes displayed')],
          'hg view [-l LIMIT] [REVRANGE]'),
     "debug-diff-tree":
         (difftree,
          [('p', 'patch', None, 'generate patch'),
           ('r', 'recursive', None, 'recursive'),
           ('P', 'pretty', None, 'pretty'),
           ('s', 'stdin', None, 'stdin'),
           ('C', 'copy', None, 'detect copies'),
           ('S', 'search', "", 'search')],
          'hg git-diff-tree [OPTION]... NODE1 NODE2 [FILE]...'),
     "debug-cat-file":
         (catfile,
          [('s', 'stdin', None, 'stdin')],
          'hg debug-cat-file [OPTION]... TYPE FILE'),
     "debug-config":
         (config, [], 'hg debug-config'),
     "debug-merge-base":
         (base, [], 'hg debug-merge-base node node'),
     "debug-rev-parse":
         (revparse,
          [('', 'default', '', 'ignored')],
          'hg debug-rev-parse REV'),
     "debug-rev-list":
         (revlist,
          [('H', 'header', None, 'header'),
           ('t', 'topo-order', None, 'topo-order'),
           ('p', 'parents', None, 'parents'),
           ('n', 'max-count', 0, 'max-count')],
          'hg debug-rev-list [options] revs'),
 }

hgext/keyword.py

@@ -1,567 +1,567 b''
 # keyword.py - $Keyword$ expansion for Mercurial
 #
 # Copyright 2007, 2008 Christian Ebert <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 #
 # $Id$
 #
 # Keyword expansion hack against the grain of a DSCM
 #
 # There are many good reasons why this is not needed in a distributed
 # SCM, still it may be useful in very small projects based on single
 # files (like LaTeX packages), that are mostly addressed to an audience
 # not running a version control system.
 #
 # For in-depth discussion refer to
 # <http://www.selenic.com/mercurial/wiki/index.cgi/KeywordPlan>.
 #
 # Keyword expansion is based on Mercurial's changeset template mappings.
 #
 # Binary files are not touched.
 #
 # Setup in hgrc:
 #
 #   [extensions]
 #   # enable extension
 #   hgext.keyword =
 #
 # Files to act upon/ignore are specified in the [keyword] section.
 # Customized keyword template mappings in the [keywordmaps] section.
 #
 # Run "hg help keyword" and "hg kwdemo" to get info on configuration.
 
 '''keyword expansion in local repositories
 
 This extension expands RCS/CVS-like or self-customized $Keywords$
 in tracked text files selected by your configuration.
 
 Keywords are only expanded in local repositories and not stored in
 the change history. The mechanism can be regarded as a convenience
 for the current user or for archive distribution.
 
 Configuration is done in the [keyword] and [keywordmaps] sections
 of hgrc files.
 
 Example:
 
     [keyword]
     # expand keywords in every python file except those matching "x*"
     **.py =
     x*    = ignore
 
 Note: the more specific you are in your filename patterns
       the less you lose speed in huge repos.
 
 For [keywordmaps] template mapping and expansion demonstration and
 control run "hg kwdemo".
 
 An additional date template filter {date|utcdate} is provided.
 
 The default template mappings (view with "hg kwdemo -d") can be replaced
 with customized keywords and templates.
 Again, run "hg kwdemo" to control the results of your config changes.
 
 Before changing/disabling active keywords, run "hg kwshrink" to avoid
 the risk of inadvertedly storing expanded keywords in the change history.
 
 To force expansion after enabling it, or a configuration change, run
 "hg kwexpand".
 
 Also, when committing with the record extension or using mq's qrecord, be aware
 that keywords cannot be updated. Again, run "hg kwexpand" on the files in
 question to update keyword expansions after all changes have been checked in.
 
 Expansions spanning more than one line and incremental expansions,
 like CVS' $Log$, are not supported. A keyword template map
 "Log = {desc}" expands to the first line of the changeset description.
 '''
 
 from mercurial import commands, cmdutil, dispatch, filelog, revlog
 from mercurial import patch, localrepo, templater, templatefilters, util
 from mercurial.hgweb import webcommands
 from mercurial.node import nullid, hex
 from mercurial.i18n import _
 import re, shutil, tempfile, time
 
 commands.optionalrepo += ' kwdemo'
 
 # hg commands that do not act on keywords
 nokwcommands = ('add addremove annotate bundle copy export grep incoming init'
                 ' log outgoing push rename rollback tip'
                 ' convert email glog')
 
 # hg commands that trigger expansion only when writing to working dir,
 # not when reading filelog, and unexpand when reading from working dir
 restricted = 'record qfold qimport qnew qpush qrefresh qrecord'
 
 def utcdate(date):
     '''Returns hgdate in cvs-like UTC format.'''
     return time.strftime('%Y/%m/%d %H:%M:%S', time.gmtime(date[0]))
 
 # make keyword tools accessible
 kwtools = {'templater': None, 'hgcmd': '', 'inc': [], 'exc': ['.hg*']}
 
 
 class kwtemplater(object):
     '''
     Sets up keyword templates, corresponding keyword regex, and
     provides keyword substitution functions.
     '''
     templates = {
         'Revision': '{node|short}',
         'Author': '{author|user}',
         'Date': '{date|utcdate}',
         'RCSFile': '{file|basename},v',
         'Source': '{root}/{file},v',
         'Id': '{file|basename},v {node|short} {date|utcdate} {author|user}',
         'Header': '{root}/{file},v {node|short} {date|utcdate} {author|user}',
     }
 
     def __init__(self, ui, repo):
         self.ui = ui
         self.repo = repo
         self.matcher = util.matcher(repo.root,
                                     inc=kwtools['inc'], exc=kwtools['exc'])[1]
         self.restrict = kwtools['hgcmd'] in restricted.split()
 
         kwmaps = self.ui.configitems('keywordmaps')
         if kwmaps: # override default templates
             kwmaps = [(k, templater.parsestring(v, False))
                       for (k, v) in kwmaps]
             self.templates = dict(kwmaps)
         escaped = map(re.escape, self.templates.keys())
         kwpat = r'\$(%s)(: [^$\n\r]*? )??\$' % '|'.join(escaped)
         self.re_kw = re.compile(kwpat)
 
         templatefilters.filters['utcdate'] = utcdate
         self.ct = cmdutil.changeset_templater(self.ui, self.repo,
                                               False, '', False)
 
     def getnode(self, path, fnode):
         '''Derives changenode from file path and filenode.'''
         # used by kwfilelog.read and kwexpand
         c = self.repo.filectx(path, fileid=fnode)
         return c.node()
 
     def substitute(self, data, path, node, subfunc):
         '''Replaces keywords in data with expanded template.'''
         def kwsub(mobj):
             kw = mobj.group(1)
             self.ct.use_template(self.templates[kw])
             self.ui.pushbuffer()
             self.ct.show(changenode=node, root=self.repo.root, file=path)
             ekw = templatefilters.firstline(self.ui.popbuffer())
             return '$%s: %s $' % (kw, ekw)
         return subfunc(kwsub, data)
 
     def expand(self, path, node, data):
         '''Returns data with keywords expanded.'''
         if not self.restrict and self.matcher(path) and not util.binary(data):
             changenode = self.getnode(path, node)
             return self.substitute(data, path, changenode, self.re_kw.sub)
         return data
 
     def iskwfile(self, path, islink):
         '''Returns true if path matches [keyword] pattern
         and is not a symbolic link.
         Caveat: localrepository._link fails on Windows.'''
         return self.matcher(path) and not islink(path)
 
     def overwrite(self, node, expand, files):
         '''Overwrites selected files expanding/shrinking keywords.'''
         if node is not None:     # commit
-            ctx = self.repo.changectx(node)
+            ctx = self.repo[node]
             mf = ctx.manifest()
             files = [f for f in ctx.files() if f in mf]
             notify = self.ui.debug
         else:                    # kwexpand/kwshrink
-            ctx = self.repo.changectx('.')
+            ctx = self.repo['.']
             mf = ctx.manifest()
             notify = self.ui.note
         candidates = [f for f in files if self.iskwfile(f, mf.linkf)]
         if candidates:
             self.restrict = True # do not expand when reading
             candidates.sort()
             action = expand and 'expanding' or 'shrinking'
             for f in candidates:
                 fp = self.repo.file(f)
                 data = fp.read(mf[f])
                 if util.binary(data):
                     continue
                 if expand:
                     changenode = node or self.getnode(f, mf[f])
                     data, found = self.substitute(data, f, changenode,
                                                   self.re_kw.subn)
                 else:
                     found = self.re_kw.search(data)
                 if found:
                     notify(_('overwriting %s %s keywords\n') % (f, action))
                     self.repo.wwrite(f, data, mf.flags(f))
                     self.repo.dirstate.normal(f)
             self.restrict = False
 
     def shrinktext(self, text):
         '''Unconditionally removes all keyword substitutions from text.'''
         return self.re_kw.sub(r'$\1$', text)
 
     def shrink(self, fname, text):
         '''Returns text with all keyword substitutions removed.'''
         if self.matcher(fname) and not util.binary(text):
             return self.shrinktext(text)
         return text
 
     def shrinklines(self, fname, lines):
         '''Returns lines with keyword substitutions removed.'''
         if self.matcher(fname):
             text = ''.join(lines)
             if not util.binary(text):
                 return self.shrinktext(text).splitlines(True)
         return lines
 
     def wread(self, fname, data):
         '''If in restricted mode returns data read from wdir with
         keyword substitutions removed.'''
         return self.restrict and self.shrink(fname, data) or data
 
 class kwfilelog(filelog.filelog):
     '''
     Subclass of filelog to hook into its read, add, cmp methods.
     Keywords are "stored" unexpanded, and processed on reading.
     '''
     def __init__(self, opener, kwt, path):
         super(kwfilelog, self).__init__(opener, path)
         self.kwt = kwt
         self.path = path
 
     def read(self, node):
         '''Expands keywords when reading filelog.'''
         data = super(kwfilelog, self).read(node)
         return self.kwt.expand(self.path, node, data)
 
     def add(self, text, meta, tr, link, p1=None, p2=None):
         '''Removes keyword substitutions when adding to filelog.'''
         text = self.kwt.shrink(self.path, text)
         return super(kwfilelog, self).add(text, meta, tr, link, p1, p2)
 
     def cmp(self, node, text):
         '''Removes keyword substitutions for comparison.'''
         text = self.kwt.shrink(self.path, text)
         if self.renamed(node):
             t2 = super(kwfilelog, self).read(node)
             return t2 != text
         return revlog.revlog.cmp(self, node, text)
 
 def _status(ui, repo, kwt, *pats, **opts):
     '''Bails out if [keyword] configuration is not active.
     Returns status of working directory.'''
     if kwt:
         matcher = cmdutil.match(repo, pats, opts)
         return repo.status(match=matcher, list_clean=True)
     if ui.configitems('keyword'):
         raise util.Abort(_('[keyword] patterns cannot match'))
     raise util.Abort(_('no [keyword] patterns configured'))
 
 def _kwfwrite(ui, repo, expand, *pats, **opts):
     '''Selects files and passes them to kwtemplater.overwrite.'''
     if repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('outstanding uncommitted merge'))
     kwt = kwtools['templater']
     status = _status(ui, repo, kwt, *pats, **opts)
     modified, added, removed, deleted, unknown, ignored, clean = status
     if modified or added or removed or deleted:
         raise util.Abort(_('outstanding uncommitted changes'))
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         kwt.overwrite(None, expand, clean)
     finally:
         del wlock, lock
 
 
 def demo(ui, repo, *args, **opts):
     '''print [keywordmaps] configuration and an expansion example
 
     Show current, custom, or default keyword template maps
     and their expansion.
 
     Extend current configuration by specifying maps as arguments
     and optionally by reading from an additional hgrc file.
 
     Override current keyword template maps with "default" option.
     '''
     def demostatus(stat):
         ui.status(_('\n\t%s\n') % stat)
 
     def demoitems(section, items):
         ui.write('[%s]\n' % section)
         for k, v in items:
             ui.write('%s = %s\n' % (k, v))
 
     msg = 'hg keyword config and expansion example'
     kwstatus = 'current'
     fn = 'demo.txt'
     branchname = 'demobranch'
     tmpdir = tempfile.mkdtemp('', 'kwdemo.')
     ui.note(_('creating temporary repo at %s\n') % tmpdir)
     repo = localrepo.localrepository(ui, tmpdir, True)
     ui.setconfig('keyword', fn, '')
     if args or opts.get('rcfile'):
         kwstatus = 'custom'
     if opts.get('rcfile'):
         ui.readconfig(opts.get('rcfile'))
     if opts.get('default'):
         kwstatus = 'default'
         kwmaps = kwtemplater.templates
         if ui.configitems('keywordmaps'):
             # override maps from optional rcfile
             for k, v in kwmaps.iteritems():
                 ui.setconfig('keywordmaps', k, v)
     elif args:
         # simulate hgrc parsing
         rcmaps = ['[keywordmaps]\n'] + [a + '\n' for a in args]
         fp = repo.opener('hgrc', 'w')
         fp.writelines(rcmaps)
         fp.close()
         ui.readconfig(repo.join('hgrc'))
     if not opts.get('default'):
         kwmaps = dict(ui.configitems('keywordmaps')) or kwtemplater.templates
     uisetup(ui)
     reposetup(ui, repo)
     for k, v in ui.configitems('extensions'):
         if k.endswith('keyword'):
             extension = '%s = %s' % (k, v)
             break
     demostatus('config using %s keyword template maps' % kwstatus)
     ui.write('[extensions]\n%s\n' % extension)
     demoitems('keyword', ui.configitems('keyword'))
     demoitems('keywordmaps', kwmaps.iteritems())
     keywords = '$' + '$\n$'.join(kwmaps.keys()) + '$\n'
     repo.wopener(fn, 'w').write(keywords)
     repo.add([fn])
     path = repo.wjoin(fn)
     ui.note(_('\n%s keywords written to %s:\n') % (kwstatus, path))
     ui.note(keywords)
     ui.note('\nhg -R "%s" branch "%s"\n' % (tmpdir, branchname))
     # silence branch command if not verbose
     quiet = ui.quiet
     ui.quiet = not ui.verbose
     commands.branch(ui, repo, branchname)
     ui.quiet = quiet
     for name, cmd in ui.configitems('hooks'):
         if name.split('.', 1)[0].find('commit') > -1:
             repo.ui.setconfig('hooks', name, '')
     ui.note(_('unhooked all commit hooks\n'))
     ui.note('hg -R "%s" ci -m "%s"\n' % (tmpdir, msg))
     repo.commit(text=msg)
     format = ui.verbose and ' in %s' % path or ''
     demostatus('%s keywords expanded%s' % (kwstatus, format))
     ui.write(repo.wread(fn))
     ui.debug(_('\nremoving temporary repo %s\n') % tmpdir)
     shutil.rmtree(tmpdir, ignore_errors=True)
 
 def expand(ui, repo, *pats, **opts):
     '''expand keywords in working directory
 
     Run after (re)enabling keyword expansion.
 
     kwexpand refuses to run if given files contain local changes.
     '''
     # 3rd argument sets expansion to True
     _kwfwrite(ui, repo, True, *pats, **opts)
 
 def files(ui, repo, *pats, **opts):
     '''print files currently configured for keyword expansion
 
     Crosscheck which files in working directory are potential targets for
     keyword expansion.
     That is, files matched by [keyword] config patterns but not symlinks.
     '''
     kwt = kwtools['templater']
     status = _status(ui, repo, kwt, *pats, **opts)
     modified, added, removed, deleted, unknown, ignored, clean = status
     files = modified + added + clean
     if opts.get('untracked'):
         files += unknown
     files.sort()
-    wctx = repo.changectx(None)
+    wctx = repo[None]
     islink = lambda p: 'l' in wctx.flags(p)
     kwfiles = [f for f in files if kwt.iskwfile(f, islink)]
     cwd = pats and repo.getcwd() or ''
     kwfstats = not opts.get('ignore') and (('K', kwfiles),) or ()
     if opts.get('all') or opts.get('ignore'):
         kwfstats += (('I', [f for f in files if f not in kwfiles]),)
     for char, filenames in kwfstats:
         format = (opts.get('all') or ui.verbose) and '%s %%s\n' % char or '%s\n'
         for f in filenames:
             ui.write(format % repo.pathto(f, cwd))
 
 def shrink(ui, repo, *pats, **opts):
     '''revert expanded keywords in working directory
 
     Run before changing/disabling active keywords
     or if you experience problems with "hg import" or "hg merge".
 
     kwshrink refuses to run if given files contain local changes.
     '''
     # 3rd argument sets expansion to False
     _kwfwrite(ui, repo, False, *pats, **opts)
 
 
 def uisetup(ui):
     '''Collects [keyword] config in kwtools.
     Monkeypatches dispatch._parse if needed.'''
 
     for pat, opt in ui.configitems('keyword'):
         if opt != 'ignore':
             kwtools['inc'].append(pat)
         else:
             kwtools['exc'].append(pat)
 
     if kwtools['inc']:
         def kwdispatch_parse(ui, args):
             '''Monkeypatch dispatch._parse to obtain running hg command.'''
             cmd, func, args, options, cmdoptions = dispatch_parse(ui, args)
             kwtools['hgcmd'] = cmd
             return cmd, func, args, options, cmdoptions
 
         dispatch_parse = dispatch._parse
         dispatch._parse = kwdispatch_parse
 
 def reposetup(ui, repo):
     '''Sets up repo as kwrepo for keyword substitution.
     Overrides file method to return kwfilelog instead of filelog
     if file matches user configuration.
     Wraps commit to overwrite configured files with updated
     keyword substitutions.
     Monkeypatches patch and webcommands.'''
 
     try:
         if (not repo.local() or not kwtools['inc']
             or kwtools['hgcmd'] in nokwcommands.split()
             or '.hg' in util.splitpath(repo.root)
             or repo._url.startswith('bundle:')):
             return
     except AttributeError:
         pass
 
     kwtools['templater'] = kwt = kwtemplater(ui, repo)
 
     class kwrepo(repo.__class__):
         def file(self, f):
             if f[0] == '/':
                 f = f[1:]
             return kwfilelog(self.sopener, kwt, f)
 
         def wread(self, filename):
             data = super(kwrepo, self).wread(filename)
             return kwt.wread(filename, data)
 
         def commit(self, files=None, text='', user=None, date=None,
                    match=None, force=False, force_editor=False,
                    p1=None, p2=None, extra={}, empty_ok=False):
             wlock = lock = None
             _p1 = _p2 = None
             try:
                 wlock = self.wlock()
                 lock = self.lock()
                 # store and postpone commit hooks
                 commithooks = {}
                 for name, cmd in ui.configitems('hooks'):
                     if name.split('.', 1)[0] == 'commit':
                         commithooks[name] = cmd
                         ui.setconfig('hooks', name, None)
                 if commithooks:
                     # store parents for commit hook environment
                     if p1 is None:
                         _p1, _p2 = repo.dirstate.parents()
                     else:
                         _p1, _p2 = p1, p2 or nullid
                     _p1 = hex(_p1)
                     if _p2 == nullid:
                         _p2 = ''
                     else:
                         _p2 = hex(_p2)
 
                 n = super(kwrepo, self).commit(files, text, user, date, match,
                                                force, force_editor, p1, p2,
                                                extra, empty_ok)
 
                 # restore commit hooks
                 for name, cmd in commithooks.iteritems():
                     ui.setconfig('hooks', name, cmd)
                 if n is not None:
                     kwt.overwrite(n, True, None)
                     repo.hook('commit', node=n, parent1=_p1, parent2=_p2)
                 return n
             finally:
                 del wlock, lock
 
     # monkeypatches
     def kwpatchfile_init(self, ui, fname, missing=False):
         '''Monkeypatch/wrap patch.patchfile.__init__ to avoid
         rejects or conflicts due to expanded keywords in working dir.'''
         patchfile_init(self, ui, fname, missing)
         # shrink keywords read from working dir
         self.lines = kwt.shrinklines(self.fname, self.lines)
 
     def kw_diff(repo, node1=None, node2=None, match=None,
                 fp=None, changes=None, opts=None):
         '''Monkeypatch patch.diff to avoid expansion except when
         comparing against working dir.'''
         if node2 is not None:
             kwt.matcher = util.never
-        elif node1 is not None and node1 != repo.changectx('.').node():
+        elif node1 is not None and node1 != repo['.'].node():
             kwt.restrict = True
         patch_diff(repo, node1, node2, match, fp, changes, opts)
 
     def kwweb_annotate(web, req, tmpl):
         '''Wraps webcommands.annotate turning off keyword expansion.'''
         kwt.matcher = util.never
         return webcommands_annotate(web, req, tmpl)
 
     def kwweb_changeset(web, req, tmpl):
         '''Wraps webcommands.changeset turning off keyword expansion.'''
         kwt.matcher = util.never
         return webcommands_changeset(web, req, tmpl)
 
     def kwweb_filediff(web, req, tmpl):
         '''Wraps webcommands.filediff turning off keyword expansion.'''
         kwt.matcher = util.never
         return webcommands_filediff(web, req, tmpl)
 
     repo.__class__ = kwrepo
 
     patchfile_init = patch.patchfile.__init__
     patch_diff = patch.diff
     webcommands_annotate = webcommands.annotate
     webcommands_changeset = webcommands.changeset
     webcommands_filediff = webcommands.filediff
 
     patch.patchfile.__init__ = kwpatchfile_init
     patch.diff = kw_diff
     webcommands.annotate = kwweb_annotate
     webcommands.changeset = webcommands.rev = kwweb_changeset
     webcommands.filediff = webcommands.diff = kwweb_filediff
 
 
 cmdtable = {
     'kwdemo':
         (demo,
          [('d', 'default', None, _('show default keyword template maps')),
           ('f', 'rcfile', [], _('read maps from rcfile'))],
          _('hg kwdemo [-d] [-f RCFILE] [TEMPLATEMAP]...')),
     'kwexpand': (expand, commands.walkopts,
                  _('hg kwexpand [OPTION]... [FILE]...')),
     'kwfiles':
         (files,
          [('a', 'all', None, _('show keyword status flags of all files')),
           ('i', 'ignore', None, _('show files excluded from expansion')),
           ('u', 'untracked', None, _('additionally show untracked files')),
          ] + commands.walkopts,
          _('hg kwfiles [OPTION]... [FILE]...')),
     'kwshrink': (shrink, commands.walkopts,
                  _('hg kwshrink [OPTION]... [FILE]...')),
 }

hgext/mq.py

@@ -1,2458 +1,2458 b''
 # mq.py - patch queues for mercurial
 #
 # Copyright 2005, 2006 Chris Mason <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 '''patch management and development
 
 This extension lets you work with a stack of patches in a Mercurial
 repository.  It manages two stacks of patches - all known patches, and
 applied patches (subset of known patches).
 
 Known patches are represented as patch files in the .hg/patches
 directory.  Applied patches are both patch files and changesets.
 
 Common tasks (use "hg help command" for more details):
 
 prepare repository to work with patches   qinit
 create new patch                          qnew
 import existing patch                     qimport
 
 print patch series                        qseries
 print applied patches                     qapplied
 print name of top applied patch           qtop
 
 add known patch to applied stack          qpush
 remove patch from applied stack           qpop
 refresh contents of top applied patch     qrefresh
 '''
 
 from mercurial.i18n import _
 from mercurial.node import bin, hex, short
 from mercurial.repo import RepoError
 from mercurial import commands, cmdutil, hg, patch, revlog, util
 from mercurial import repair
 import os, sys, re, errno
 
 commands.norepo += " qclone"
 
 # Patch names looks like unix-file names.
 # They must be joinable with queue directory and result in the patch path.
 normname = util.normpath
 
 class statusentry:
     def __init__(self, rev, name=None):
         if not name:
             fields = rev.split(':', 1)
             if len(fields) == 2:
                 self.rev, self.name = fields
             else:
                 self.rev, self.name = None, None
         else:
             self.rev, self.name = rev, name
 
     def __str__(self):
         return self.rev + ':' + self.name
 
 class queue:
     def __init__(self, ui, path, patchdir=None):
         self.basepath = path
         self.path = patchdir or os.path.join(path, "patches")
         self.opener = util.opener(self.path)
         self.ui = ui
         self.applied = []
         self.full_series = []
         self.applied_dirty = 0
         self.series_dirty = 0
         self.series_path = "series"
         self.status_path = "status"
         self.guards_path = "guards"
         self.active_guards = None
         self.guards_dirty = False
         self._diffopts = None
 
         if os.path.exists(self.join(self.series_path)):
             self.full_series = self.opener(self.series_path).read().splitlines()
         self.parse_series()
 
         if os.path.exists(self.join(self.status_path)):
             lines = self.opener(self.status_path).read().splitlines()
             self.applied = [statusentry(l) for l in lines]
 
     def diffopts(self):
         if self._diffopts is None:
             self._diffopts = patch.diffopts(self.ui)
         return self._diffopts
 
     def join(self, *p):
         return os.path.join(self.path, *p)
 
     def find_series(self, patch):
         pre = re.compile("(\s*)([^#]+)")
         index = 0
         for l in self.full_series:
             m = pre.match(l)
             if m:
                 s = m.group(2)
                 s = s.rstrip()
                 if s == patch:
                     return index
             index += 1
         return None
 
     guard_re = re.compile(r'\s?#([-+][^-+# \t\r\n\f][^# \t\r\n\f]*)')
 
     def parse_series(self):
         self.series = []
         self.series_guards = []
         for l in self.full_series:
             h = l.find('#')
             if h == -1:
                 patch = l
                 comment = ''
             elif h == 0:
                 continue
             else:
                 patch = l[:h]
                 comment = l[h:]
             patch = patch.strip()
             if patch:
                 if patch in self.series:
                     raise util.Abort(_('%s appears more than once in %s') %
                                      (patch, self.join(self.series_path)))
                 self.series.append(patch)
                 self.series_guards.append(self.guard_re.findall(comment))
 
     def check_guard(self, guard):
         if not guard:
             return _('guard cannot be an empty string')
         bad_chars = '# \t\r\n\f'
         first = guard[0]
         for c in '-+':
             if first == c:
                 return (_('guard %r starts with invalid character: %r') %
                         (guard, c))
         for c in bad_chars:
             if c in guard:
                 return _('invalid character in guard %r: %r') % (guard, c)
 
     def set_active(self, guards):
         for guard in guards:
             bad = self.check_guard(guard)
             if bad:
                 raise util.Abort(bad)
         guards = dict.fromkeys(guards).keys()
         guards.sort()
         self.ui.debug('active guards: %s\n' % ' '.join(guards))
         self.active_guards = guards
         self.guards_dirty = True
 
     def active(self):
         if self.active_guards is None:
             self.active_guards = []
             try:
                 guards = self.opener(self.guards_path).read().split()
             except IOError, err:
                 if err.errno != errno.ENOENT: raise
                 guards = []
             for i, guard in enumerate(guards):
                 bad = self.check_guard(guard)
                 if bad:
                     self.ui.warn('%s:%d: %s\n' %
                                  (self.join(self.guards_path), i + 1, bad))
                 else:
                     self.active_guards.append(guard)
         return self.active_guards
 
     def set_guards(self, idx, guards):
         for g in guards:
             if len(g) < 2:
                 raise util.Abort(_('guard %r too short') % g)
             if g[0] not in '-+':
                 raise util.Abort(_('guard %r starts with invalid char') % g)
             bad = self.check_guard(g[1:])
             if bad:
                 raise util.Abort(bad)
         drop = self.guard_re.sub('', self.full_series[idx])
         self.full_series[idx] = drop + ''.join([' #' + g for g in guards])
         self.parse_series()
         self.series_dirty = True
 
     def pushable(self, idx):
         if isinstance(idx, str):
             idx = self.series.index(idx)
         patchguards = self.series_guards[idx]
         if not patchguards:
             return True, None
         default = False
         guards = self.active()
         exactneg = [g for g in patchguards if g[0] == '-' and g[1:] in guards]
         if exactneg:
             return False, exactneg[0]
         pos = [g for g in patchguards if g[0] == '+']
         exactpos = [g for g in pos if g[1:] in guards]
         if pos:
             if exactpos:
                 return True, exactpos[0]
             return False, pos
         return True, ''
 
     def explain_pushable(self, idx, all_patches=False):
         write = all_patches and self.ui.write or self.ui.warn
         if all_patches or self.ui.verbose:
             if isinstance(idx, str):
                 idx = self.series.index(idx)
             pushable, why = self.pushable(idx)
             if all_patches and pushable:
                 if why is None:
                     write(_('allowing %s - no guards in effect\n') %
                           self.series[idx])
                 else:
                     if not why:
                         write(_('allowing %s - no matching negative guards\n') %
                               self.series[idx])
                     else:
                         write(_('allowing %s - guarded by %r\n') %
                               (self.series[idx], why))
             if not pushable:
                 if why:
                     write(_('skipping %s - guarded by %r\n') %
                           (self.series[idx], why))
                 else:
                     write(_('skipping %s - no matching guards\n') %
                           self.series[idx])
 
     def save_dirty(self):
         def write_list(items, path):
             fp = self.opener(path, 'w')
             for i in items:
                 fp.write("%s\n" % i)
             fp.close()
         if self.applied_dirty: write_list(map(str, self.applied), self.status_path)
         if self.series_dirty: write_list(self.full_series, self.series_path)
         if self.guards_dirty: write_list(self.active_guards, self.guards_path)
 
     def readheaders(self, patch):
         def eatdiff(lines):
             while lines:
                 l = lines[-1]
                 if (l.startswith("diff -") or
                     l.startswith("Index:") or
                     l.startswith("===========")):
                     del lines[-1]
                 else:
                     break
         def eatempty(lines):
             while lines:
                 l = lines[-1]
                 if re.match('\s*$', l):
                     del lines[-1]
                 else:
                     break
 
         pf = self.join(patch)
         message = []
         comments = []
         user = None
         date = None
         format = None
         subject = None
         diffstart = 0
 
         for line in file(pf):
             line = line.rstrip()
             if line.startswith('diff --git'):
                 diffstart = 2
                 break
             if diffstart:
                 if line.startswith('+++ '):
                     diffstart = 2
                 break
             if line.startswith("--- "):
                 diffstart = 1
                 continue
             elif format == "hgpatch":
                 # parse values when importing the result of an hg export
                 if line.startswith("# User "):
                     user = line[7:]
                 elif line.startswith("# Date "):
                     date = line[7:]
                 elif not line.startswith("# ") and line:
                     message.append(line)
                     format = None
             elif line == '# HG changeset patch':
                 format = "hgpatch"
             elif (format != "tagdone" and (line.startswith("Subject: ") or
                                            line.startswith("subject: "))):
                 subject = line[9:]
                 format = "tag"
             elif (format != "tagdone" and (line.startswith("From: ") or
                                            line.startswith("from: "))):
                 user = line[6:]
                 format = "tag"
             elif format == "tag" and line == "":
                 # when looking for tags (subject: from: etc) they
                 # end once you find a blank line in the source
                 format = "tagdone"
             elif message or line:
                 message.append(line)
             comments.append(line)
 
         eatdiff(message)
         eatdiff(comments)
         eatempty(message)
         eatempty(comments)
 
         # make sure message isn't empty
         if format and format.startswith("tag") and subject:
             message.insert(0, "")
             message.insert(0, subject)
         return (message, comments, user, date, diffstart > 1)
 
     def removeundo(self, repo):
         undo = repo.sjoin('undo')
         if not os.path.exists(undo):
             return
         try:
             os.unlink(undo)
         except OSError, inst:
             self.ui.warn('error removing undo: %s\n' % str(inst))
 
     def printdiff(self, repo, node1, node2=None, files=None,
                   fp=None, changes=None, opts={}):
         m = cmdutil.match(repo, files, opts)
         patch.diff(repo, node1, node2, m, fp, changes, self.diffopts())
 
     def mergeone(self, repo, mergeq, head, patch, rev):
         # first try just applying the patch
         (err, n) = self.apply(repo, [ patch ], update_status=False,
                               strict=True, merge=rev)
 
         if err == 0:
             return (err, n)
 
         if n is None:
             raise util.Abort(_("apply failed for patch %s") % patch)
 
         self.ui.warn("patch didn't work out, merging %s\n" % patch)
 
         # apply failed, strip away that rev and merge.
         hg.clean(repo, head)
         self.strip(repo, n, update=False, backup='strip')
 
-        ctx = repo.changectx(rev)
+        ctx = repo[rev]
         ret = hg.merge(repo, rev)
         if ret:
             raise util.Abort(_("update returned %d") % ret)
         n = repo.commit(None, ctx.description(), ctx.user(), force=1)
         if n == None:
             raise util.Abort(_("repo commit failed"))
         try:
             message, comments, user, date, patchfound = mergeq.readheaders(patch)
         except:
             raise util.Abort(_("unable to read %s") % patch)
 
         patchf = self.opener(patch, "w")
         if comments:
             comments = "\n".join(comments) + '\n\n'
             patchf.write(comments)
         self.printdiff(repo, head, n, fp=patchf)
         patchf.close()
         self.removeundo(repo)
         return (0, n)
 
     def qparents(self, repo, rev=None):
         if rev is None:
             (p1, p2) = repo.dirstate.parents()
             if p2 == revlog.nullid:
                 return p1
             if len(self.applied) == 0:
                 return None
             return revlog.bin(self.applied[-1].rev)
         pp = repo.changelog.parents(rev)
         if pp[1] != revlog.nullid:
             arevs = [ x.rev for x in self.applied ]
             p0 = revlog.hex(pp[0])
             p1 = revlog.hex(pp[1])
             if p0 in arevs:
                 return pp[0]
             if p1 in arevs:
                 return pp[1]
         return pp[0]
 
     def mergepatch(self, repo, mergeq, series):
         if len(self.applied) == 0:
             # each of the patches merged in will have two parents.  This
             # can confuse the qrefresh, qdiff, and strip code because it
             # needs to know which parent is actually in the patch queue.
             # so, we insert a merge marker with only one parent.  This way
             # the first patch in the queue is never a merge patch
             #
             pname = ".hg.patches.merge.marker"
             n = repo.commit(None, '[mq]: merge marker', user=None, force=1)
             self.removeundo(repo)
             self.applied.append(statusentry(revlog.hex(n), pname))
             self.applied_dirty = 1
 
         head = self.qparents(repo)
 
         for patch in series:
             patch = mergeq.lookup(patch, strict=True)
             if not patch:
                 self.ui.warn("patch %s does not exist\n" % patch)
                 return (1, None)
             pushable, reason = self.pushable(patch)
             if not pushable:
                 self.explain_pushable(patch, all_patches=True)
                 continue
             info = mergeq.isapplied(patch)
             if not info:
                 self.ui.warn("patch %s is not applied\n" % patch)
                 return (1, None)
             rev = revlog.bin(info[1])
             (err, head) = self.mergeone(repo, mergeq, head, patch, rev)
             if head:
                 self.applied.append(statusentry(revlog.hex(head), patch))
                 self.applied_dirty = 1
             if err:
                 return (err, head)
         self.save_dirty()
         return (0, head)
 
     def patch(self, repo, patchfile):
         '''Apply patchfile  to the working directory.
         patchfile: file name of patch'''
         files = {}
         try:
             fuzz = patch.patch(patchfile, self.ui, strip=1, cwd=repo.root,
                                files=files)
         except Exception, inst:
             self.ui.note(str(inst) + '\n')
             if not self.ui.verbose:
                 self.ui.warn("patch failed, unable to continue (try -v)\n")
             return (False, files, False)
 
         return (True, files, fuzz)
 
     def apply(self, repo, series, list=False, update_status=True,
               strict=False, patchdir=None, merge=None, all_files={}):
         wlock = lock = tr = None
         try:
             wlock = repo.wlock()
             lock = repo.lock()
             tr = repo.transaction()
             try:
                 ret = self._apply(repo, series, list, update_status,
                                   strict, patchdir, merge, all_files=all_files)
                 tr.close()
                 self.save_dirty()
                 return ret
             except:
                 try:
                     tr.abort()
                 finally:
                     repo.invalidate()
                     repo.dirstate.invalidate()
                 raise
         finally:
             del tr, lock, wlock
             self.removeundo(repo)
 
     def _apply(self, repo, series, list=False, update_status=True,
                strict=False, patchdir=None, merge=None, all_files={}):
         # TODO unify with commands.py
         if not patchdir:
             patchdir = self.path
         err = 0
         n = None
         for patchname in series:
             pushable, reason = self.pushable(patchname)
             if not pushable:
                 self.explain_pushable(patchname, all_patches=True)
                 continue
             self.ui.warn("applying %s\n" % patchname)
             pf = os.path.join(patchdir, patchname)
 
             try:
                 message, comments, user, date, patchfound = self.readheaders(patchname)
             except:
                 self.ui.warn("Unable to read %s\n" % patchname)
                 err = 1
                 break
 
             if not message:
                 message = "imported patch %s\n" % patchname
             else:
                 if list:
                     message.append("\nimported patch %s" % patchname)
                 message = '\n'.join(message)
 
             (patcherr, files, fuzz) = self.patch(repo, pf)
             all_files.update(files)
             patcherr = not patcherr
 
             if merge and files:
                 # Mark as removed/merged and update dirstate parent info
                 removed = []
                 merged = []
                 for f in files:
                     if os.path.exists(repo.wjoin(f)):
                         merged.append(f)
                     else:
                         removed.append(f)
                 for f in removed:
                     repo.dirstate.remove(f)
                 for f in merged:
                     repo.dirstate.merge(f)
                 p1, p2 = repo.dirstate.parents()
                 repo.dirstate.setparents(p1, merge)
 
             files = patch.updatedir(self.ui, repo, files)
             match = cmdutil.matchfiles(repo, files or [])
             n = repo.commit(files, message, user, date, match=match,
                             force=True)
 
             if n == None:
                 raise util.Abort(_("repo commit failed"))
 
             if update_status:
                 self.applied.append(statusentry(revlog.hex(n), patchname))
 
             if patcherr:
                 if not patchfound:
                     self.ui.warn("patch %s is empty\n" % patchname)
                     err = 0
                 else:
                     self.ui.warn("patch failed, rejects left in working dir\n")
                     err = 1
                 break
 
             if fuzz and strict:
                 self.ui.warn("fuzz found when applying patch, stopping\n")
                 err = 1
                 break
         return (err, n)
 
     def _clean_series(self, patches):
         indices = [self.find_series(p) for p in patches]
         indices.sort()
         for i in indices[-1::-1]:
             del self.full_series[i]
         self.parse_series()
         self.series_dirty = 1
 
     def finish(self, repo, revs):
         revs.sort()
         firstrev = repo.changelog.rev(revlog.bin(self.applied[0].rev))
         appliedbase = 0
         patches = []
         for rev in revs:
             if rev < firstrev:
                 raise util.Abort(_('revision %d is not managed') % rev)
             base = revlog.bin(self.applied[appliedbase].rev)
             node = repo.changelog.node(rev)
             if node != base:
                 raise util.Abort(_('cannot delete revision %d above '
                                    'applied patches') % rev)
             patches.append(self.applied[appliedbase].name)
             appliedbase += 1
 
         r = self.qrepo()
         if r:
             r.remove(patches, True)
         else:
             for p in patches:
                 os.unlink(self.join(p))
 
         del self.applied[:appliedbase]
         self.applied_dirty = 1
         self._clean_series(patches)
 
     def delete(self, repo, patches, opts):
         if not patches and not opts.get('rev'):
             raise util.Abort(_('qdelete requires at least one revision or '
                                'patch name'))
 
         realpatches = []
         for patch in patches:
             patch = self.lookup(patch, strict=True)
             info = self.isapplied(patch)
             if info:
                 raise util.Abort(_("cannot delete applied patch %s") % patch)
             if patch not in self.series:
                 raise util.Abort(_("patch %s not in series file") % patch)
             realpatches.append(patch)
 
         appliedbase = 0
         if opts.get('rev'):
             if not self.applied:
                 raise util.Abort(_('no patches applied'))
             revs = cmdutil.revrange(repo, opts['rev'])
             if len(revs) > 1 and revs[0] > revs[1]:
                 revs.reverse()
             for rev in revs:
                 if appliedbase >= len(self.applied):
                     raise util.Abort(_("revision %d is not managed") % rev)
 
                 base = revlog.bin(self.applied[appliedbase].rev)
                 node = repo.changelog.node(rev)
                 if node != base:
                     raise util.Abort(_("cannot delete revision %d above "
                                        "applied patches") % rev)
                 realpatches.append(self.applied[appliedbase].name)
                 appliedbase += 1
 
         if not opts.get('keep'):
             r = self.qrepo()
             if r:
                 r.remove(realpatches, True)
             else:
                 for p in realpatches:
                     os.unlink(self.join(p))
 
         if appliedbase:
             del self.applied[:appliedbase]
             self.applied_dirty = 1
         self._clean_series(realpatches)
 
     def check_toppatch(self, repo):
         if len(self.applied) > 0:
             top = revlog.bin(self.applied[-1].rev)
             pp = repo.dirstate.parents()
             if top not in pp:
                 raise util.Abort(_("working directory revision is not qtip"))
             return top
         return None
     def check_localchanges(self, repo, force=False, refresh=True):
         m, a, r, d = repo.status()[:4]
         if m or a or r or d:
             if not force:
                 if refresh:
                     raise util.Abort(_("local changes found, refresh first"))
                 else:
                     raise util.Abort(_("local changes found"))
         return m, a, r, d
 
     _reserved = ('series', 'status', 'guards')
     def check_reserved_name(self, name):
         if (name in self._reserved or name.startswith('.hg')
             or name.startswith('.mq')):
             raise util.Abort(_('"%s" cannot be used as the name of a patch')
                              % name)
 
     def new(self, repo, patch, *pats, **opts):
         msg = opts.get('msg')
         force = opts.get('force')
         user = opts.get('user')
         date = opts.get('date')
         if date:
             date = util.parsedate(date)
         self.check_reserved_name(patch)
         if os.path.exists(self.join(patch)):
             raise util.Abort(_('patch "%s" already exists') % patch)
         if opts.get('include') or opts.get('exclude') or pats:
             match = cmdutil.match(repo, pats, opts)
             m, a, r, d = repo.status(match=match)[:4]
         else:
             m, a, r, d = self.check_localchanges(repo, force)
             match = cmdutil.match(repo, m + a + r)
         commitfiles = m + a + r
         self.check_toppatch(repo)
         wlock = repo.wlock()
         try:
             insert = self.full_series_end()
             commitmsg = msg and msg or ("[mq]: %s" % patch)
             n = repo.commit(commitfiles, commitmsg, user, date, match=match, force=True)
             if n == None:
                 raise util.Abort(_("repo commit failed"))
             self.full_series[insert:insert] = [patch]
             self.applied.append(statusentry(revlog.hex(n), patch))
             self.parse_series()
             self.series_dirty = 1
             self.applied_dirty = 1
             p = self.opener(patch, "w")
             if date:
                 p.write("# HG changeset patch\n")
                 if user:
                     p.write("# User " + user + "\n")
                 p.write("# Date %d %d\n" % date)
                 p.write("\n")
             elif user:
                 p.write("From: " + user + "\n")
                 p.write("\n")
             if msg:
                 msg = msg + "\n"
                 p.write(msg)
             p.close()
             wlock = None
             r = self.qrepo()
             if r: r.add([patch])
             if commitfiles:
                 self.refresh(repo, short=True, git=opts.get('git'))
             self.removeundo(repo)
         finally:
             del wlock
 
     def strip(self, repo, rev, update=True, backup="all", force=None):
         wlock = lock = None
         try:
             wlock = repo.wlock()
             lock = repo.lock()
 
             if update:
                 self.check_localchanges(repo, force=force, refresh=False)
                 urev = self.qparents(repo, rev)
                 hg.clean(repo, urev)
                 repo.dirstate.write()
 
             self.removeundo(repo)
             repair.strip(self.ui, repo, rev, backup)
             # strip may have unbundled a set of backed up revisions after
             # the actual strip
             self.removeundo(repo)
         finally:
             del lock, wlock
 
     def isapplied(self, patch):
         """returns (index, rev, patch)"""
         for i in xrange(len(self.applied)):
             a = self.applied[i]
             if a.name == patch:
                 return (i, a.rev, a.name)
         return None
 
     # if the exact patch name does not exist, we try a few
     # variations.  If strict is passed, we try only #1
     #
     # 1) a number to indicate an offset in the series file
     # 2) a unique substring of the patch name was given
     # 3) patchname[-+]num to indicate an offset in the series file
     def lookup(self, patch, strict=False):
         patch = patch and str(patch)
 
         def partial_name(s):
             if s in self.series:
                 return s
             matches = [x for x in self.series if s in x]
             if len(matches) > 1:
                 self.ui.warn(_('patch name "%s" is ambiguous:\n') % s)
                 for m in matches:
                     self.ui.warn('  %s\n' % m)
                 return None
             if matches:
                 return matches[0]
             if len(self.series) > 0 and len(self.applied) > 0:
                 if s == 'qtip':
                     return self.series[self.series_end(True)-1]
                 if s == 'qbase':
                     return self.series[0]
             return None
         if patch == None:
             return None
 
         # we don't want to return a partial match until we make
         # sure the file name passed in does not exist (checked below)
         res = partial_name(patch)
         if res and res == patch:
             return res
 
         if not os.path.isfile(self.join(patch)):
             try:
                 sno = int(patch)
             except(ValueError, OverflowError):
                 pass
             else:
                 if sno < len(self.series):
                     return self.series[sno]
             if not strict:
                 # return any partial match made above
                 if res:
                     return res
                 minus = patch.rfind('-')
                 if minus >= 0:
                     res = partial_name(patch[:minus])
                     if res:
                         i = self.series.index(res)
                         try:
                             off = int(patch[minus+1:] or 1)
                         except(ValueError, OverflowError):
                             pass
                         else:
                             if i - off >= 0:
                                 return self.series[i - off]
                 plus = patch.rfind('+')
                 if plus >= 0:
                     res = partial_name(patch[:plus])
                     if res:
                         i = self.series.index(res)
                         try:
                             off = int(patch[plus+1:] or 1)
                         except(ValueError, OverflowError):
                             pass
                         else:
                             if i + off < len(self.series):
                                 return self.series[i + off]
         raise util.Abort(_("patch %s not in series") % patch)
 
     def push(self, repo, patch=None, force=False, list=False,
              mergeq=None):
         wlock = repo.wlock()
         if repo.dirstate.parents()[0] != repo.changelog.tip():
             self.ui.status(_("(working directory not at tip)\n"))
 
         try:
             patch = self.lookup(patch)
             # Suppose our series file is: A B C and the current 'top'
             # patch is B. qpush C should be performed (moving forward)
             # qpush B is a NOP (no change) qpush A is an error (can't
             # go backwards with qpush)
             if patch:
                 info = self.isapplied(patch)
                 if info:
                     if info[0] < len(self.applied) - 1:
                         raise util.Abort(
                             _("cannot push to a previous patch: %s") % patch)
                     if info[0] < len(self.series) - 1:
                         self.ui.warn(
                             _('qpush: %s is already at the top\n') % patch)
                     else:
                         self.ui.warn(_('all patches are currently applied\n'))
                     return
 
             # Following the above example, starting at 'top' of B:
             # qpush should be performed (pushes C), but a subsequent
             # qpush without an argument is an error (nothing to
             # apply). This allows a loop of "...while hg qpush..." to
             # work as it detects an error when done
             if self.series_end() == len(self.series):
                 self.ui.warn(_('patch series already fully applied\n'))
                 return 1
             if not force:
                 self.check_localchanges(repo)
 
             self.applied_dirty = 1;
             start = self.series_end()
             if start > 0:
                 self.check_toppatch(repo)
             if not patch:
                 patch = self.series[start]
                 end = start + 1
             else:
                 end = self.series.index(patch, start) + 1
             s = self.series[start:end]
             all_files = {}
             try:
                 if mergeq:
                     ret = self.mergepatch(repo, mergeq, s)
                 else:
                     ret = self.apply(repo, s, list, all_files=all_files)
             except:
                 self.ui.warn(_('cleaning up working directory...'))
                 node = repo.dirstate.parents()[0]
                 hg.revert(repo, node, None)
                 unknown = repo.status()[4]
                 # only remove unknown files that we know we touched or
                 # created while patching
                 for f in unknown:
                     if f in all_files:
                         util.unlink(repo.wjoin(f))
                 self.ui.warn(_('done\n'))
                 raise
             top = self.applied[-1].name
             if ret[0]:
                 self.ui.write(
                     "Errors during apply, please fix and refresh %s\n" % top)
             else:
                 self.ui.write("Now at: %s\n" % top)
             return ret[0]
         finally:
             del wlock
 
     def pop(self, repo, patch=None, force=False, update=True, all=False):
         def getfile(f, rev, flags):
             t = repo.file(f).read(rev)
             repo.wwrite(f, t, flags)
 
         wlock = repo.wlock()
         try:
             if patch:
                 # index, rev, patch
                 info = self.isapplied(patch)
                 if not info:
                     patch = self.lookup(patch)
                 info = self.isapplied(patch)
                 if not info:
                     raise util.Abort(_("patch %s is not applied") % patch)
 
             if len(self.applied) == 0:
                 # Allow qpop -a to work repeatedly,
                 # but not qpop without an argument
                 self.ui.warn(_("no patches applied\n"))
                 return not all
 
             if not update:
                 parents = repo.dirstate.parents()
                 rr = [ revlog.bin(x.rev) for x in self.applied ]
                 for p in parents:
                     if p in rr:
                         self.ui.warn("qpop: forcing dirstate update\n")
                         update = True
 
             if not force and update:
                 self.check_localchanges(repo)
 
             self.applied_dirty = 1;
             end = len(self.applied)
             if not patch:
                 if all:
                     popi = 0
                 else:
                     popi = len(self.applied) - 1
             else:
                 popi = info[0] + 1
                 if popi >= end:
                     self.ui.warn("qpop: %s is already at the top\n" % patch)
                     return
             info = [ popi ] + [self.applied[popi].rev, self.applied[popi].name]
 
             start = info[0]
             rev = revlog.bin(info[1])
 
             if update:
                 top = self.check_toppatch(repo)
 
             if repo.changelog.heads(rev) != [revlog.bin(self.applied[-1].rev)]:
                 raise util.Abort("popping would remove a revision not "
                                  "managed by this patch queue")
 
             # we know there are no local changes, so we can make a simplified
             # form of hg.update.
             if update:
                 qp = self.qparents(repo, rev)
                 changes = repo.changelog.read(qp)
                 mmap = repo.manifest.read(changes[0])
                 m, a, r, d, u = repo.status(qp, top)[:5]
                 if d:
                     raise util.Abort("deletions found between repo revs")
                 for f in m:
                     getfile(f, mmap[f], mmap.flags(f))
                 for f in r:
                     getfile(f, mmap[f], mmap.flags(f))
                 for f in m + r:
                     repo.dirstate.normal(f)
                 for f in a:
                     try:
                         os.unlink(repo.wjoin(f))
                     except OSError, e:
                         if e.errno != errno.ENOENT:
                             raise
                     try: os.removedirs(os.path.dirname(repo.wjoin(f)))
                     except: pass
                     repo.dirstate.forget(f)
                 repo.dirstate.setparents(qp, revlog.nullid)
             del self.applied[start:end]
             self.strip(repo, rev, update=False, backup='strip')
             if len(self.applied):
                 self.ui.write("Now at: %s\n" % self.applied[-1].name)
             else:
                 self.ui.write("Patch queue now empty\n")
         finally:
             del wlock
 
     def diff(self, repo, pats, opts):
         top = self.check_toppatch(repo)
         if not top:
             self.ui.write("No patches applied\n")
             return
         qp = self.qparents(repo, top)
         self._diffopts = patch.diffopts(self.ui, opts)
         self.printdiff(repo, qp, files=pats, opts=opts)
 
     def refresh(self, repo, pats=None, **opts):
         if len(self.applied) == 0:
             self.ui.write("No patches applied\n")
             return 1
         newdate = opts.get('date')
         if newdate:
             newdate = '%d %d' % util.parsedate(newdate)
         wlock = repo.wlock()
         try:
             self.check_toppatch(repo)
             (top, patchfn) = (self.applied[-1].rev, self.applied[-1].name)
             top = revlog.bin(top)
             if repo.changelog.heads(top) != [top]:
                 raise util.Abort("cannot refresh a revision with children")
             cparents = repo.changelog.parents(top)
             patchparent = self.qparents(repo, top)
             message, comments, user, date, patchfound = self.readheaders(patchfn)
 
             patchf = self.opener(patchfn, 'r+')
 
             # if the patch was a git patch, refresh it as a git patch
             for line in patchf:
                 if line.startswith('diff --git'):
                     self.diffopts().git = True
                     break
 
             msg = opts.get('msg', '').rstrip()
             if msg and comments:
                 # Remove existing message, keeping the rest of the comments
                 # fields.
                 # If comments contains 'subject: ', message will prepend
                 # the field and a blank line.
                 if message:
                     subj = 'subject: ' + message[0].lower()
                     for i in xrange(len(comments)):
                         if subj == comments[i].lower():
                             del comments[i]
                             message = message[2:]
                             break
                 ci = 0
                 for mi in xrange(len(message)):
                     while message[mi] != comments[ci]:
                         ci += 1
                     del comments[ci]
 
             def setheaderfield(comments, prefixes, new):
                 # Update all references to a field in the patch header.
                 # If none found, add it email style.
                 res = False
                 for prefix in prefixes:
                     for i in xrange(len(comments)):
                         if comments[i].startswith(prefix):
                             comments[i] = prefix + new
                             res = True
                             break
                 return res
 
             newuser = opts.get('user')
             if newuser:
                 if not setheaderfield(comments, ['From: ', '# User '], newuser):
                     try:
                         patchheaderat = comments.index('# HG changeset patch')
                         comments.insert(patchheaderat + 1,'# User ' + newuser)
                     except ValueError:
                         comments = ['From: ' + newuser, ''] + comments
                 user = newuser
 
             if newdate:
                 if setheaderfield(comments, ['# Date '], newdate):
                     date = newdate
 
             if msg:
                 comments.append(msg)
 
             patchf.seek(0)
             patchf.truncate()
 
             if comments:
                 comments = "\n".join(comments) + '\n\n'
                 patchf.write(comments)
 
             if opts.get('git'):
                 self.diffopts().git = True
             matchfn = cmdutil.match(repo, pats, opts)
             tip = repo.changelog.tip()
             if top == tip:
                 # if the top of our patch queue is also the tip, there is an
                 # optimization here.  We update the dirstate in place and strip
                 # off the tip commit.  Then just commit the current directory
                 # tree.  We can also send repo.commit the list of files
                 # changed to speed up the diff
                 #
                 # in short mode, we only diff the files included in the
                 # patch already
                 #
                 # this should really read:
                 #   mm, dd, aa, aa2, uu = repo.status(tip, patchparent)[:5]
                 # but we do it backwards to take advantage of manifest/chlog
                 # caching against the next repo.status call
                 #
                 mm, aa, dd, aa2, uu = repo.status(patchparent, tip)[:5]
                 changes = repo.changelog.read(tip)
                 man = repo.manifest.read(changes[0])
                 aaa = aa[:]
                 if opts.get('short'):
                     match = cmdutil.matchfiles(repo, mm + aa + dd)
                 else:
                     match = cmdutil.matchall(repo)
                 m, a, r, d, u = repo.status(match=match)[:5]
 
                 # we might end up with files that were added between
                 # tip and the dirstate parent, but then changed in the
                 # local dirstate. in this case, we want them to only
                 # show up in the added section
                 for x in m:
                     if x not in aa:
                         mm.append(x)
                 # we might end up with files added by the local dirstate that
                 # were deleted by the patch.  In this case, they should only
                 # show up in the changed section.
                 for x in a:
                     if x in dd:
                         del dd[dd.index(x)]
                         mm.append(x)
                     else:
                         aa.append(x)
                 # make sure any files deleted in the local dirstate
                 # are not in the add or change column of the patch
                 forget = []
                 for x in d + r:
                     if x in aa:
                         del aa[aa.index(x)]
                         forget.append(x)
                         continue
                     elif x in mm:
                         del mm[mm.index(x)]
                     dd.append(x)
 
                 m = util.unique(mm)
                 r = util.unique(dd)
                 a = util.unique(aa)
                 c = [filter(matchfn, l) for l in (m, a, r, [], u)]
                 match = cmdutil.matchfiles(repo, util.unique(c[0] + c[1] + c[2]))
                 patch.diff(repo, patchparent, match=match,
                            fp=patchf, changes=c, opts=self.diffopts())
                 patchf.close()
 
                 repo.dirstate.setparents(*cparents)
                 copies = {}
                 for dst in a:
                     src = repo.dirstate.copied(dst)
                     if src is not None:
                         copies.setdefault(src, []).append(dst)
                     repo.dirstate.add(dst)
                 # remember the copies between patchparent and tip
                 # this may be slow, so don't do it if we're not tracking copies
                 if self.diffopts().git:
                     for dst in aaa:
                         f = repo.file(dst)
                         src = f.renamed(man[dst])
                         if src:
                             copies[src[0]] = copies.get(dst, [])
                             if dst in a:
                                 copies[src[0]].append(dst)
                         # we can't copy a file created by the patch itself
                         if dst in copies:
                             del copies[dst]
                 for src, dsts in copies.iteritems():
                     for dst in dsts:
                         repo.dirstate.copy(src, dst)
                 for f in r:
                     repo.dirstate.remove(f)
                 # if the patch excludes a modified file, mark that
                 # file with mtime=0 so status can see it.
                 mm = []
                 for i in xrange(len(m)-1, -1, -1):
                     if not matchfn(m[i]):
                         mm.append(m[i])
                         del m[i]
                 for f in m:
                     repo.dirstate.normal(f)
                 for f in mm:
                     repo.dirstate.normallookup(f)
                 for f in forget:
                     repo.dirstate.forget(f)
 
                 if not msg:
                     if not message:
                         message = "[mq]: %s\n" % patchfn
                     else:
                         message = "\n".join(message)
                 else:
                     message = msg
 
                 if not user:
                     user = changes[1]
 
                 self.applied.pop()
                 self.applied_dirty = 1
                 self.strip(repo, top, update=False,
                            backup='strip')
                 n = repo.commit(match.files(), message, user, date, match=match,
                                 force=1)
                 self.applied.append(statusentry(revlog.hex(n), patchfn))
                 self.removeundo(repo)
             else:
                 self.printdiff(repo, patchparent, fp=patchf)
                 patchf.close()
                 added = repo.status()[1]
                 for a in added:
                     f = repo.wjoin(a)
                     try:
                         os.unlink(f)
                     except OSError, e:
                         if e.errno != errno.ENOENT:
                             raise
                     try: os.removedirs(os.path.dirname(f))
                     except: pass
                     # forget the file copies in the dirstate
                     # push should readd the files later on
                     repo.dirstate.forget(a)
                 self.pop(repo, force=True)
                 self.push(repo, force=True)
         finally:
             del wlock
 
     def init(self, repo, create=False):
         if not create and os.path.isdir(self.path):
             raise util.Abort(_("patch queue directory already exists"))
         try:
             os.mkdir(self.path)
         except OSError, inst:
             if inst.errno != errno.EEXIST or not create:
                 raise
         if create:
             return self.qrepo(create=True)
 
     def unapplied(self, repo, patch=None):
         if patch and patch not in self.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         if not patch:
             start = self.series_end()
         else:
             start = self.series.index(patch) + 1
         unapplied = []
         for i in xrange(start, len(self.series)):
             pushable, reason = self.pushable(i)
             if pushable:
                 unapplied.append((i, self.series[i]))
             self.explain_pushable(i)
         return unapplied
 
     def qseries(self, repo, missing=None, start=0, length=None, status=None,
                 summary=False):
         def displayname(patchname):
             if summary:
                 msg = self.readheaders(patchname)[0]
                 msg = msg and ': ' + msg[0] or ': '
             else:
                 msg = ''
             return '%s%s' % (patchname, msg)
 
         applied = dict.fromkeys([p.name for p in self.applied])
         if length is None:
             length = len(self.series) - start
         if not missing:
             for i in xrange(start, start+length):
                 patch = self.series[i]
                 if patch in applied:
                     stat = 'A'
                 elif self.pushable(i)[0]:
                     stat = 'U'
                 else:
                     stat = 'G'
                 pfx = ''
                 if self.ui.verbose:
                     pfx = '%d %s ' % (i, stat)
                 elif status and status != stat:
                     continue
                 self.ui.write('%s%s\n' % (pfx, displayname(patch)))
         else:
             msng_list = []
             for root, dirs, files in os.walk(self.path):
                 d = root[len(self.path) + 1:]
                 for f in files:
                     fl = os.path.join(d, f)
                     if (fl not in self.series and
                         fl not in (self.status_path, self.series_path,
                                    self.guards_path)
                         and not fl.startswith('.')):
                         msng_list.append(fl)
             msng_list.sort()
             for x in msng_list:
                 pfx = self.ui.verbose and ('D ') or ''
                 self.ui.write("%s%s\n" % (pfx, displayname(x)))
 
     def issaveline(self, l):
         if l.name == '.hg.patches.save.line':
             return True
 
     def qrepo(self, create=False):
         if create or os.path.isdir(self.join(".hg")):
             return hg.repository(self.ui, path=self.path, create=create)
 
     def restore(self, repo, rev, delete=None, qupdate=None):
         c = repo.changelog.read(rev)
         desc = c[4].strip()
         lines = desc.splitlines()
         i = 0
         datastart = None
         series = []
         applied = []
         qpp = None
         for i in xrange(0, len(lines)):
             if lines[i] == 'Patch Data:':
                 datastart = i + 1
             elif lines[i].startswith('Dirstate:'):
                 l = lines[i].rstrip()
                 l = l[10:].split(' ')
                 qpp = [ bin(x) for x in l ]
             elif datastart != None:
                 l = lines[i].rstrip()
                 se = statusentry(l)
                 file_ = se.name
                 if se.rev:
                     applied.append(se)
                 else:
                     series.append(file_)
         if datastart == None:
             self.ui.warn("No saved patch data found\n")
             return 1
         self.ui.warn("restoring status: %s\n" % lines[0])
         self.full_series = series
         self.applied = applied
         self.parse_series()
         self.series_dirty = 1
         self.applied_dirty = 1
         heads = repo.changelog.heads()
         if delete:
             if rev not in heads:
                 self.ui.warn("save entry has children, leaving it alone\n")
             else:
                 self.ui.warn("removing save entry %s\n" % short(rev))
                 pp = repo.dirstate.parents()
                 if rev in pp:
                     update = True
                 else:
                     update = False
                 self.strip(repo, rev, update=update, backup='strip')
         if qpp:
             self.ui.warn("saved queue repository parents: %s %s\n" %
                          (short(qpp[0]), short(qpp[1])))
             if qupdate:
                 self.ui.status(_("queue directory updating\n"))
                 r = self.qrepo()
                 if not r:
                     self.ui.warn("Unable to load queue repository\n")
                     return 1
                 hg.clean(r, qpp[0])
 
     def save(self, repo, msg=None):
         if len(self.applied) == 0:
             self.ui.warn("save: no patches applied, exiting\n")
             return 1
         if self.issaveline(self.applied[-1]):
             self.ui.warn("status is already saved\n")
             return 1
 
         ar = [ ':' + x for x in self.full_series ]
         if not msg:
             msg = "hg patches saved state"
         else:
             msg = "hg patches: " + msg.rstrip('\r\n')
         r = self.qrepo()
         if r:
             pp = r.dirstate.parents()
             msg += "\nDirstate: %s %s" % (hex(pp[0]), hex(pp[1]))
         msg += "\n\nPatch Data:\n"
         text = msg + "\n".join([str(x) for x in self.applied]) + '\n' + (ar and
                    "\n".join(ar) + '\n' or "")
         n = repo.commit(None, text, user=None, force=1)
         if not n:
             self.ui.warn("repo commit failed\n")
             return 1
         self.applied.append(statusentry(revlog.hex(n),'.hg.patches.save.line'))
         self.applied_dirty = 1
         self.removeundo(repo)
 
     def full_series_end(self):
         if len(self.applied) > 0:
             p = self.applied[-1].name
             end = self.find_series(p)
             if end == None:
                 return len(self.full_series)
             return end + 1
         return 0
 
     def series_end(self, all_patches=False):
         """If all_patches is False, return the index of the next pushable patch
         in the series, or the series length. If all_patches is True, return the
         index of the first patch past the last applied one.
         """
         end = 0
         def next(start):
             if all_patches:
                 return start
             i = start
             while i < len(self.series):
                 p, reason = self.pushable(i)
                 if p:
                     break
                 self.explain_pushable(i)
                 i += 1
             return i
         if len(self.applied) > 0:
             p = self.applied[-1].name
             try:
                 end = self.series.index(p)
             except ValueError:
                 return 0
             return next(end + 1)
         return next(end)
 
     def appliedname(self, index):
         pname = self.applied[index].name
         if not self.ui.verbose:
             p = pname
         else:
             p = str(self.series.index(pname)) + " " + pname
         return p
 
     def qimport(self, repo, files, patchname=None, rev=None, existing=None,
                 force=None, git=False):
         def checkseries(patchname):
             if patchname in self.series:
                 raise util.Abort(_('patch %s is already in the series file')
                                  % patchname)
         def checkfile(patchname):
             if not force and os.path.exists(self.join(patchname)):
                 raise util.Abort(_('patch "%s" already exists')
                                  % patchname)
 
         if rev:
             if files:
                 raise util.Abort(_('option "-r" not valid when importing '
                                    'files'))
             rev = cmdutil.revrange(repo, rev)
             rev.sort(lambda x, y: cmp(y, x))
         if (len(files) > 1 or len(rev) > 1) and patchname:
             raise util.Abort(_('option "-n" not valid when importing multiple '
                                'patches'))
         i = 0
         added = []
         if rev:
             # If mq patches are applied, we can only import revisions
             # that form a linear path to qbase.
             # Otherwise, they should form a linear path to a head.
             heads = repo.changelog.heads(repo.changelog.node(rev[-1]))
             if len(heads) > 1:
                 raise util.Abort(_('revision %d is the root of more than one '
                                    'branch') % rev[-1])
             if self.applied:
                 base = revlog.hex(repo.changelog.node(rev[0]))
                 if base in [n.rev for n in self.applied]:
                     raise util.Abort(_('revision %d is already managed')
                                      % rev[0])
                 if heads != [revlog.bin(self.applied[-1].rev)]:
                     raise util.Abort(_('revision %d is not the parent of '
                                        'the queue') % rev[0])
                 base = repo.changelog.rev(revlog.bin(self.applied[0].rev))
                 lastparent = repo.changelog.parentrevs(base)[0]
             else:
                 if heads != [repo.changelog.node(rev[0])]:
                     raise util.Abort(_('revision %d has unmanaged children')
                                      % rev[0])
                 lastparent = None
 
             if git:
                 self.diffopts().git = True
 
             for r in rev:
                 p1, p2 = repo.changelog.parentrevs(r)
                 n = repo.changelog.node(r)
                 if p2 != revlog.nullrev:
                     raise util.Abort(_('cannot import merge revision %d') % r)
                 if lastparent and lastparent != r:
                     raise util.Abort(_('revision %d is not the parent of %d')
                                      % (r, lastparent))
                 lastparent = p1
 
                 if not patchname:
                     patchname = normname('%d.diff' % r)
                 self.check_reserved_name(patchname)
                 checkseries(patchname)
                 checkfile(patchname)
                 self.full_series.insert(0, patchname)
 
                 patchf = self.opener(patchname, "w")
                 patch.export(repo, [n], fp=patchf, opts=self.diffopts())
                 patchf.close()
 
                 se = statusentry(revlog.hex(n), patchname)
                 self.applied.insert(0, se)
 
                 added.append(patchname)
                 patchname = None
             self.parse_series()
             self.applied_dirty = 1
 
         for filename in files:
             if existing:
                 if filename == '-':
                     raise util.Abort(_('-e is incompatible with import from -'))
                 if not patchname:
                     patchname = normname(filename)
                 self.check_reserved_name(patchname)
                 if not os.path.isfile(self.join(patchname)):
                     raise util.Abort(_("patch %s does not exist") % patchname)
             else:
                 try:
                     if filename == '-':
                         if not patchname:
                             raise util.Abort(_('need --name to import a patch from -'))
                         text = sys.stdin.read()
                     else:
                         text = file(filename, 'rb').read()
                 except IOError:
                     raise util.Abort(_("unable to read %s") % patchname)
                 if not patchname:
                     patchname = normname(os.path.basename(filename))
                 self.check_reserved_name(patchname)
                 checkfile(patchname)
                 patchf = self.opener(patchname, "w")
                 patchf.write(text)
             checkseries(patchname)
             index = self.full_series_end() + i
             self.full_series[index:index] = [patchname]
             self.parse_series()
             self.ui.warn("adding %s to series file\n" % patchname)
             i += 1
             added.append(patchname)
             patchname = None
         self.series_dirty = 1
         qrepo = self.qrepo()
         if qrepo:
             qrepo.add(added)
 
 def delete(ui, repo, *patches, **opts):
     """remove patches from queue
 
     The patches must not be applied, unless they are arguments to
     the --rev parameter. At least one patch or revision is required.
 
     With --rev, mq will stop managing the named revisions (converting
     them to regular mercurial changesets). The qfinish command should be
     used as an alternative for qdel -r, as the latter option is deprecated.
 
     With --keep, the patch files are preserved in the patch directory."""
     q = repo.mq
     q.delete(repo, patches, opts)
     q.save_dirty()
     return 0
 
 def applied(ui, repo, patch=None, **opts):
     """print the patches already applied"""
     q = repo.mq
     if patch:
         if patch not in q.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         end = q.series.index(patch) + 1
     else:
         end = q.series_end(True)
     return q.qseries(repo, length=end, status='A', summary=opts.get('summary'))
 
 def unapplied(ui, repo, patch=None, **opts):
     """print the patches not yet applied"""
     q = repo.mq
     if patch:
         if patch not in q.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         start = q.series.index(patch) + 1
     else:
         start = q.series_end(True)
     q.qseries(repo, start=start, status='U', summary=opts.get('summary'))
 
 def qimport(ui, repo, *filename, **opts):
     """import a patch
 
     The patch is inserted into the series after the last applied patch.
     If no patches have been applied, qimport prepends the patch
     to the series.
 
     The patch will have the same name as its source file unless you
     give it a new one with --name.
 
     You can register an existing patch inside the patch directory
     with the --existing flag.
 
     With --force, an existing patch of the same name will be overwritten.
 
     An existing changeset may be placed under mq control with --rev
     (e.g. qimport --rev tip -n patch will place tip under mq control).
     With --git, patches imported with --rev will use the git diff
     format.
     """
     q = repo.mq
     q.qimport(repo, filename, patchname=opts['name'],
               existing=opts['existing'], force=opts['force'], rev=opts['rev'],
               git=opts['git'])
     q.save_dirty()
     return 0
 
 def init(ui, repo, **opts):
     """init a new queue repository
 
     The queue repository is unversioned by default. If -c is
     specified, qinit will create a separate nested repository
     for patches (qinit -c may also be run later to convert
     an unversioned patch repository into a versioned one).
     You can use qcommit to commit changes to this queue repository."""
     q = repo.mq
     r = q.init(repo, create=opts['create_repo'])
     q.save_dirty()
     if r:
         if not os.path.exists(r.wjoin('.hgignore')):
             fp = r.wopener('.hgignore', 'w')
             fp.write('^\\.hg\n')
             fp.write('^\\.mq\n')
             fp.write('syntax: glob\n')
             fp.write('status\n')
             fp.write('guards\n')
             fp.close()
         if not os.path.exists(r.wjoin('series')):
             r.wopener('series', 'w').close()
         r.add(['.hgignore', 'series'])
         commands.add(ui, r)
     return 0
 
 def clone(ui, source, dest=None, **opts):
     '''clone main and patch repository at same time
 
     If source is local, destination will have no patches applied.  If
     source is remote, this command can not check if patches are
     applied in source, so cannot guarantee that patches are not
     applied in destination.  If you clone remote repository, be sure
     before that it has no patches applied.
 
     Source patch repository is looked for in <src>/.hg/patches by
     default.  Use -p <url> to change.
 
     The patch directory must be a nested mercurial repository, as
     would be created by qinit -c.
     '''
     def patchdir(repo):
         url = repo.url()
         if url.endswith('/'):
             url = url[:-1]
         return url + '/.hg/patches'
     cmdutil.setremoteconfig(ui, opts)
     if dest is None:
         dest = hg.defaultdest(source)
     sr = hg.repository(ui, ui.expandpath(source))
     patchespath = opts['patches'] or patchdir(sr)
     try:
         pr = hg.repository(ui, patchespath)
     except RepoError:
         raise util.Abort(_('versioned patch repository not found'
                            ' (see qinit -c)'))
     qbase, destrev = None, None
     if sr.local():
         if sr.mq.applied:
             qbase = revlog.bin(sr.mq.applied[0].rev)
             if not hg.islocal(dest):
                 heads = dict.fromkeys(sr.heads())
                 for h in sr.heads(qbase):
                     del heads[h]
                 destrev = heads.keys()
                 destrev.append(sr.changelog.parents(qbase)[0])
     elif sr.capable('lookup'):
         try:
             qbase = sr.lookup('qbase')
         except RepoError:
             pass
     ui.note(_('cloning main repo\n'))
     sr, dr = hg.clone(ui, sr.url(), dest,
                       pull=opts['pull'],
                       rev=destrev,
                       update=False,
                       stream=opts['uncompressed'])
     ui.note(_('cloning patch repo\n'))
     spr, dpr = hg.clone(ui, opts['patches'] or patchdir(sr), patchdir(dr),
                         pull=opts['pull'], update=not opts['noupdate'],
                         stream=opts['uncompressed'])
     if dr.local():
         if qbase:
             ui.note(_('stripping applied patches from destination repo\n'))
             dr.mq.strip(dr, qbase, update=False, backup=None)
         if not opts['noupdate']:
             ui.note(_('updating destination repo\n'))
             hg.update(dr, dr.changelog.tip())
 
 def commit(ui, repo, *pats, **opts):
     """commit changes in the queue repository"""
     q = repo.mq
     r = q.qrepo()
     if not r: raise util.Abort('no queue repository')
     commands.commit(r.ui, r, *pats, **opts)
 
 def series(ui, repo, **opts):
     """print the entire series file"""
     repo.mq.qseries(repo, missing=opts['missing'], summary=opts['summary'])
     return 0
 
 def top(ui, repo, **opts):
     """print the name of the current patch"""
     q = repo.mq
     t = q.applied and q.series_end(True) or 0
     if t:
         return q.qseries(repo, start=t-1, length=1, status='A',
                          summary=opts.get('summary'))
     else:
         ui.write("No patches applied\n")
         return 1
 
 def next(ui, repo, **opts):
     """print the name of the next patch"""
     q = repo.mq
     end = q.series_end()
     if end == len(q.series):
         ui.write("All patches applied\n")
         return 1
     return q.qseries(repo, start=end, length=1, summary=opts.get('summary'))
 
 def prev(ui, repo, **opts):
     """print the name of the previous patch"""
     q = repo.mq
     l = len(q.applied)
     if l == 1:
         ui.write("Only one patch applied\n")
         return 1
     if not l:
         ui.write("No patches applied\n")
         return 1
     return q.qseries(repo, start=l-2, length=1, status='A',
                      summary=opts.get('summary'))
 
 def setupheaderopts(ui, opts):
     def do(opt,val):
         if not opts[opt] and opts['current' + opt]:
             opts[opt] = val
     do('user', ui.username())
     do('date', "%d %d" % util.makedate())
 
 def new(ui, repo, patch, *args, **opts):
     """create a new patch
 
     qnew creates a new patch on top of the currently-applied patch
     (if any). It will refuse to run if there are any outstanding
     changes unless -f is specified, in which case the patch will
     be initialised with them. You may also use -I, -X, and/or a list of
     files after the patch name to add only changes to matching files
     to the new patch, leaving the rest as uncommitted modifications.
 
     -e, -m or -l set the patch header as well as the commit message.
     If none is specified, the patch header is empty and the
     commit message is '[mq]: PATCH'"""
     q = repo.mq
     message = cmdutil.logmessage(opts)
     if opts['edit']:
         message = ui.edit(message, ui.username())
     opts['msg'] = message
     setupheaderopts(ui, opts)
     q.new(repo, patch, *args, **opts)
     q.save_dirty()
     return 0
 
 def refresh(ui, repo, *pats, **opts):
     """update the current patch
 
     If any file patterns are provided, the refreshed patch will contain only
     the modifications that match those patterns; the remaining modifications
     will remain in the working directory.
 
     hg add/remove/copy/rename work as usual, though you might want to use
     git-style patches (--git or [diff] git=1) to track copies and renames.
     """
     q = repo.mq
     message = cmdutil.logmessage(opts)
     if opts['edit']:
         if not q.applied:
             ui.write(_("No patches applied\n"))
             return 1
         if message:
             raise util.Abort(_('option "-e" incompatible with "-m" or "-l"'))
         patch = q.applied[-1].name
         (message, comment, user, date, hasdiff) = q.readheaders(patch)
         message = ui.edit('\n'.join(message), user or ui.username())
     setupheaderopts(ui, opts)
     ret = q.refresh(repo, pats, msg=message, **opts)
     q.save_dirty()
     return ret
 
 def diff(ui, repo, *pats, **opts):
     """diff of the current patch and subsequent modifications
 
     Shows a diff which includes the current patch as well as any changes which
     have been made in the working directory since the last refresh (thus
     showing what the current patch would become after a qrefresh).
 
     Use 'hg diff' if you only want to see the changes made since the last
     qrefresh, or 'hg export qtip' if you want to see changes made by the
     current patch without including changes made since the qrefresh.
     """
     repo.mq.diff(repo, pats, opts)
     return 0
 
 def fold(ui, repo, *files, **opts):
     """fold the named patches into the current patch
 
     Patches must not yet be applied. Each patch will be successively
     applied to the current patch in the order given. If all the
     patches apply successfully, the current patch will be refreshed
     with the new cumulative patch, and the folded patches will
     be deleted. With -k/--keep, the folded patch files will not
     be removed afterwards.
 
     The header for each folded patch will be concatenated with
     the current patch header, separated by a line of '* * *'."""
 
     q = repo.mq
 
     if not files:
         raise util.Abort(_('qfold requires at least one patch name'))
     if not q.check_toppatch(repo):
         raise util.Abort(_('No patches applied'))
 
     message = cmdutil.logmessage(opts)
     if opts['edit']:
         if message:
             raise util.Abort(_('option "-e" incompatible with "-m" or "-l"'))
 
     parent = q.lookup('qtip')
     patches = []
     messages = []
     for f in files:
         p = q.lookup(f)
         if p in patches or p == parent:
             ui.warn(_('Skipping already folded patch %s') % p)
         if q.isapplied(p):
             raise util.Abort(_('qfold cannot fold already applied patch %s') % p)
         patches.append(p)
 
     for p in patches:
         if not message:
             messages.append(q.readheaders(p)[0])
         pf = q.join(p)
         (patchsuccess, files, fuzz) = q.patch(repo, pf)
         if not patchsuccess:
             raise util.Abort(_('Error folding patch %s') % p)
         patch.updatedir(ui, repo, files)
 
     if not message:
         message, comments, user = q.readheaders(parent)[0:3]
         for msg in messages:
             message.append('* * *')
             message.extend(msg)
         message = '\n'.join(message)
 
     if opts['edit']:
         message = ui.edit(message, user or ui.username())
 
     q.refresh(repo, msg=message)
     q.delete(repo, patches, opts)
     q.save_dirty()
 
 def goto(ui, repo, patch, **opts):
     '''push or pop patches until named patch is at top of stack'''
     q = repo.mq
     patch = q.lookup(patch)
     if q.isapplied(patch):
         ret = q.pop(repo, patch, force=opts['force'])
     else:
         ret = q.push(repo, patch, force=opts['force'])
     q.save_dirty()
     return ret
 
 def guard(ui, repo, *args, **opts):
     '''set or print guards for a patch
 
     Guards control whether a patch can be pushed. A patch with no
     guards is always pushed. A patch with a positive guard ("+foo") is
     pushed only if the qselect command has activated it. A patch with
     a negative guard ("-foo") is never pushed if the qselect command
     has activated it.
 
     With no arguments, print the currently active guards.
     With arguments, set guards for the named patch.
 
     To set a negative guard "-foo" on topmost patch ("--" is needed so
     hg will not interpret "-foo" as an option):
       hg qguard -- -foo
 
     To set guards on another patch:
       hg qguard other.patch +2.6.17 -stable
     '''
     def status(idx):
         guards = q.series_guards[idx] or ['unguarded']
         ui.write('%s: %s\n' % (q.series[idx], ' '.join(guards)))
     q = repo.mq
     patch = None
     args = list(args)
     if opts['list']:
         if args or opts['none']:
             raise util.Abort(_('cannot mix -l/--list with options or arguments'))
         for i in xrange(len(q.series)):
             status(i)
         return
     if not args or args[0][0:1] in '-+':
         if not q.applied:
             raise util.Abort(_('no patches applied'))
         patch = q.applied[-1].name
     if patch is None and args[0][0:1] not in '-+':
         patch = args.pop(0)
     if patch is None:
         raise util.Abort(_('no patch to work with'))
     if args or opts['none']:
         idx = q.find_series(patch)
         if idx is None:
             raise util.Abort(_('no patch named %s') % patch)
         q.set_guards(idx, args)
         q.save_dirty()
     else:
         status(q.series.index(q.lookup(patch)))
 
 def header(ui, repo, patch=None):
     """Print the header of the topmost or specified patch"""
     q = repo.mq
 
     if patch:
         patch = q.lookup(patch)
     else:
         if not q.applied:
             ui.write('No patches applied\n')
             return 1
         patch = q.lookup('qtip')
     message = repo.mq.readheaders(patch)[0]
 
     ui.write('\n'.join(message) + '\n')
 
 def lastsavename(path):
     (directory, base) = os.path.split(path)
     names = os.listdir(directory)
     namere = re.compile("%s.([0-9]+)" % base)
     maxindex = None
     maxname = None
     for f in names:
         m = namere.match(f)
         if m:
             index = int(m.group(1))
             if maxindex == None or index > maxindex:
                 maxindex = index
                 maxname = f
     if maxname:
         return (os.path.join(directory, maxname), maxindex)
     return (None, None)
 
 def savename(path):
     (last, index) = lastsavename(path)
     if last is None:
         index = 0
     newpath = path + ".%d" % (index + 1)
     return newpath
 
 def push(ui, repo, patch=None, **opts):
     """push the next patch onto the stack
 
     When --force is applied, all local changes in patched files will be lost.
     """
     q = repo.mq
     mergeq = None
 
     if opts['all']:
         if not q.series:
             ui.warn(_('no patches in series\n'))
             return 0
         patch = q.series[-1]
     if opts['merge']:
         if opts['name']:
             newpath = repo.join(opts['name'])
         else:
             newpath, i = lastsavename(q.path)
         if not newpath:
             ui.warn("no saved queues found, please use -n\n")
             return 1
         mergeq = queue(ui, repo.join(""), newpath)
         ui.warn("merging with queue at: %s\n" % mergeq.path)
     ret = q.push(repo, patch, force=opts['force'], list=opts['list'],
                  mergeq=mergeq)
     return ret
 
 def pop(ui, repo, patch=None, **opts):
     """pop the current patch off the stack
 
     By default, pops off the top of the patch stack. If given a patch name,
     keeps popping off patches until the named patch is at the top of the stack.
     """
     localupdate = True
     if opts['name']:
         q = queue(ui, repo.join(""), repo.join(opts['name']))
         ui.warn('using patch queue: %s\n' % q.path)
         localupdate = False
     else:
         q = repo.mq
     ret = q.pop(repo, patch, force=opts['force'], update=localupdate,
                 all=opts['all'])
     q.save_dirty()
     return ret
 
 def rename(ui, repo, patch, name=None, **opts):
     """rename a patch
 
     With one argument, renames the current patch to PATCH1.
     With two arguments, renames PATCH1 to PATCH2."""
 
     q = repo.mq
 
     if not name:
         name = patch
         patch = None
 
     if patch:
         patch = q.lookup(patch)
     else:
         if not q.applied:
             ui.write(_('No patches applied\n'))
             return
         patch = q.lookup('qtip')
     absdest = q.join(name)
     if os.path.isdir(absdest):
         name = normname(os.path.join(name, os.path.basename(patch)))
         absdest = q.join(name)
     if os.path.exists(absdest):
         raise util.Abort(_('%s already exists') % absdest)
 
     if name in q.series:
         raise util.Abort(_('A patch named %s already exists in the series file') % name)
 
     if ui.verbose:
         ui.write('Renaming %s to %s\n' % (patch, name))
     i = q.find_series(patch)
     guards = q.guard_re.findall(q.full_series[i])
     q.full_series[i] = name + ''.join([' #' + g for g in guards])
     q.parse_series()
     q.series_dirty = 1
 
     info = q.isapplied(patch)
     if info:
         q.applied[info[0]] = statusentry(info[1], name)
     q.applied_dirty = 1
 
     util.rename(q.join(patch), absdest)
     r = q.qrepo()
     if r:
         wlock = r.wlock()
         try:
             if r.dirstate[patch] == 'a':
                 r.dirstate.forget(patch)
                 r.dirstate.add(name)
             else:
                 if r.dirstate[name] == 'r':
                     r.undelete([name])
                 r.copy(patch, name)
                 r.remove([patch], False)
         finally:
             del wlock
 
     q.save_dirty()
 
 def restore(ui, repo, rev, **opts):
     """restore the queue state saved by a rev"""
     rev = repo.lookup(rev)
     q = repo.mq
     q.restore(repo, rev, delete=opts['delete'],
               qupdate=opts['update'])
     q.save_dirty()
     return 0
 
 def save(ui, repo, **opts):
     """save current queue state"""
     q = repo.mq
     message = cmdutil.logmessage(opts)
     ret = q.save(repo, msg=message)
     if ret:
         return ret
     q.save_dirty()
     if opts['copy']:
         path = q.path
         if opts['name']:
             newpath = os.path.join(q.basepath, opts['name'])
             if os.path.exists(newpath):
                 if not os.path.isdir(newpath):
                     raise util.Abort(_('destination %s exists and is not '
                                        'a directory') % newpath)
                 if not opts['force']:
                     raise util.Abort(_('destination %s exists, '
                                        'use -f to force') % newpath)
         else:
             newpath = savename(path)
         ui.warn("copy %s to %s\n" % (path, newpath))
         util.copyfiles(path, newpath)
     if opts['empty']:
         try:
             os.unlink(q.join(q.status_path))
         except:
             pass
     return 0
 
 def strip(ui, repo, rev, **opts):
     """strip a revision and all its descendants from the repository
 
     If one of the working dir's parent revisions is stripped, the working
     directory will be updated to the parent of the stripped revision.
     """
     backup = 'all'
     if opts['backup']:
         backup = 'strip'
     elif opts['nobackup']:
         backup = 'none'
 
     rev = repo.lookup(rev)
     p = repo.dirstate.parents()
     cl = repo.changelog
     update = True
     if p[0] == revlog.nullid:
         update = False
     elif p[1] == revlog.nullid and rev != cl.ancestor(p[0], rev):
         update = False
     elif rev not in (cl.ancestor(p[0], rev), cl.ancestor(p[1], rev)):
         update = False
 
     repo.mq.strip(repo, rev, backup=backup, update=update, force=opts['force'])
     return 0
 
 def select(ui, repo, *args, **opts):
     '''set or print guarded patches to push
 
     Use the qguard command to set or print guards on patch, then use
     qselect to tell mq which guards to use. A patch will be pushed if it
     has no guards or any positive guards match the currently selected guard,
     but will not be pushed if any negative guards match the current guard.
     For example:
 
         qguard foo.patch -stable    (negative guard)
         qguard bar.patch +stable    (positive guard)
         qselect stable
 
     This activates the "stable" guard. mq will skip foo.patch (because
     it has a negative match) but push bar.patch (because it
     has a positive match).
 
     With no arguments, prints the currently active guards.
     With one argument, sets the active guard.
 
     Use -n/--none to deactivate guards (no other arguments needed).
     When no guards are active, patches with positive guards are skipped
     and patches with negative guards are pushed.
 
     qselect can change the guards on applied patches. It does not pop
     guarded patches by default. Use --pop to pop back to the last applied
     patch that is not guarded. Use --reapply (which implies --pop) to push
     back to the current patch afterwards, but skip guarded patches.
 
     Use -s/--series to print a list of all guards in the series file (no
     other arguments needed). Use -v for more information.'''
 
     q = repo.mq
     guards = q.active()
     if args or opts['none']:
         old_unapplied = q.unapplied(repo)
         old_guarded = [i for i in xrange(len(q.applied)) if
                        not q.pushable(i)[0]]
         q.set_active(args)
         q.save_dirty()
         if not args:
             ui.status(_('guards deactivated\n'))
         if not opts['pop'] and not opts['reapply']:
             unapplied = q.unapplied(repo)
             guarded = [i for i in xrange(len(q.applied))
                        if not q.pushable(i)[0]]
             if len(unapplied) != len(old_unapplied):
                 ui.status(_('number of unguarded, unapplied patches has '
                             'changed from %d to %d\n') %
                           (len(old_unapplied), len(unapplied)))
             if len(guarded) != len(old_guarded):
                 ui.status(_('number of guarded, applied patches has changed '
                             'from %d to %d\n') %
                           (len(old_guarded), len(guarded)))
     elif opts['series']:
         guards = {}
         noguards = 0
         for gs in q.series_guards:
             if not gs:
                 noguards += 1
             for g in gs:
                 guards.setdefault(g, 0)
                 guards[g] += 1
         if ui.verbose:
             guards['NONE'] = noguards
         guards = guards.items()
         guards.sort(lambda a, b: cmp(a[0][1:], b[0][1:]))
         if guards:
             ui.note(_('guards in series file:\n'))
             for guard, count in guards:
                 ui.note('%2d  ' % count)
                 ui.write(guard, '\n')
         else:
             ui.note(_('no guards in series file\n'))
     else:
         if guards:
             ui.note(_('active guards:\n'))
             for g in guards:
                 ui.write(g, '\n')
         else:
             ui.write(_('no active guards\n'))
     reapply = opts['reapply'] and q.applied and q.appliedname(-1)
     popped = False
     if opts['pop'] or opts['reapply']:
         for i in xrange(len(q.applied)):
             pushable, reason = q.pushable(i)
             if not pushable:
                 ui.status(_('popping guarded patches\n'))
                 popped = True
                 if i == 0:
                     q.pop(repo, all=True)
                 else:
                     q.pop(repo, i-1)
                 break
     if popped:
         try:
             if reapply:
                 ui.status(_('reapplying unguarded patches\n'))
                 q.push(repo, reapply)
         finally:
             q.save_dirty()
 
 def finish(ui, repo, *revrange, **opts):
     """move applied patches into repository history
 
     Finishes the specified revisions (corresponding to applied patches) by
     moving them out of mq control into regular repository history.
 
     Accepts a revision range or the --all option. If --all is specified, all
     applied mq revisions are removed from mq control. Otherwise, the given
     revisions must be at the base of the stack of applied patches.
 
     This can be especially useful if your changes have been applied to an
     upstream repository, or if you are about to push your changes to upstream.
     """
     if not opts['applied'] and not revrange:
         raise util.Abort(_('no revisions specified'))
     elif opts['applied']:
         revrange = ('qbase:qtip',) + revrange
 
     q = repo.mq
     if not q.applied:
         ui.status(_('no patches applied\n'))
         return 0
 
     revs = cmdutil.revrange(repo, revrange)
     q.finish(repo, revs)
     q.save_dirty()
     return 0
 
 def reposetup(ui, repo):
     class mqrepo(repo.__class__):
         def abort_if_wdir_patched(self, errmsg, force=False):
             if self.mq.applied and not force:
                 parent = revlog.hex(self.dirstate.parents()[0])
                 if parent in [s.rev for s in self.mq.applied]:
                     raise util.Abort(errmsg)
 
         def commit(self, *args, **opts):
             if len(args) >= 6:
                 force = args[5]
             else:
                 force = opts.get('force')
             self.abort_if_wdir_patched(
                 _('cannot commit over an applied mq patch'),
                 force)
 
             return super(mqrepo, self).commit(*args, **opts)
 
         def push(self, remote, force=False, revs=None):
             if self.mq.applied and not force and not revs:
                 raise util.Abort(_('source has mq patches applied'))
             return super(mqrepo, self).push(remote, force, revs)
 
         def tags(self):
             if self.tagscache:
                 return self.tagscache
 
             tagscache = super(mqrepo, self).tags()
 
             q = self.mq
             if not q.applied:
                 return tagscache
 
             mqtags = [(revlog.bin(patch.rev), patch.name) for patch in q.applied]
 
             if mqtags[-1][0] not in self.changelog.nodemap:
                 self.ui.warn('mq status file refers to unknown node %s\n'
                              % revlog.short(mqtags[-1][0]))
                 return tagscache
 
             mqtags.append((mqtags[-1][0], 'qtip'))
             mqtags.append((mqtags[0][0], 'qbase'))
             mqtags.append((self.changelog.parents(mqtags[0][0])[0], 'qparent'))
             for patch in mqtags:
                 if patch[1] in tagscache:
                     self.ui.warn('Tag %s overrides mq patch of the same name\n' % patch[1])
                 else:
                     tagscache[patch[1]] = patch[0]
 
             return tagscache
 
         def _branchtags(self, partial, lrev):
             q = self.mq
             if not q.applied:
                 return super(mqrepo, self)._branchtags(partial, lrev)
 
             cl = self.changelog
             qbasenode = revlog.bin(q.applied[0].rev)
             if qbasenode not in cl.nodemap:
                 self.ui.warn('mq status file refers to unknown node %s\n'
                              % revlog.short(qbasenode))
                 return super(mqrepo, self)._branchtags(partial, lrev)
 
             qbase = cl.rev(qbasenode)
             start = lrev + 1
             if start < qbase:
                 # update the cache (excluding the patches) and save it
                 self._updatebranchcache(partial, lrev+1, qbase)
                 self._writebranchcache(partial, cl.node(qbase-1), qbase-1)
                 start = qbase
             # if start = qbase, the cache is as updated as it should be.
             # if start > qbase, the cache includes (part of) the patches.
             # we might as well use it, but we won't save it.
 
             # update the cache up to the tip
             self._updatebranchcache(partial, start, cl.count())
 
             return partial
 
     if repo.local():
         repo.__class__ = mqrepo
         repo.mq = queue(ui, repo.join(""))
 
 seriesopts = [('s', 'summary', None, _('print first line of patch header'))]
 
 headeropts = [
     ('U', 'currentuser', None, _('add "From: <current user>" to patch')),
     ('u', 'user', '', _('add "From: <given user>" to patch')),
     ('D', 'currentdate', None, _('add "Date: <current date>" to patch')),
     ('d', 'date', '', _('add "Date: <given date>" to patch'))]
 
 cmdtable = {
     "qapplied": (applied, [] + seriesopts, _('hg qapplied [-s] [PATCH]')),
     "qclone":
         (clone,
          [('', 'pull', None, _('use pull protocol to copy metadata')),
           ('U', 'noupdate', None, _('do not update the new working directories')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
           ('p', 'patches', '', _('location of source patch repo')),
          ] + commands.remoteopts,
          _('hg qclone [OPTION]... SOURCE [DEST]')),
     "qcommit|qci":
         (commit,
          commands.table["^commit|ci"][1],
          _('hg qcommit [OPTION]... [FILE]...')),
     "^qdiff":
         (diff,
          commands.diffopts + commands.diffopts2 + commands.walkopts,
          _('hg qdiff [OPTION]... [FILE]...')),
     "qdelete|qremove|qrm":
         (delete,
          [('k', 'keep', None, _('keep patch file')),
           ('r', 'rev', [], _('stop managing a revision'))],
          _('hg qdelete [-k] [-r REV]... [PATCH]...')),
     'qfold':
         (fold,
          [('e', 'edit', None, _('edit patch header')),
           ('k', 'keep', None, _('keep folded patch files')),
          ] + commands.commitopts,
          _('hg qfold [-e] [-k] [-m TEXT] [-l FILE] PATCH...')),
     'qgoto':
         (goto,
          [('f', 'force', None, _('overwrite any local changes'))],
          _('hg qgoto [OPTION]... PATCH')),
     'qguard':
         (guard,
          [('l', 'list', None, _('list all patches and guards')),
           ('n', 'none', None, _('drop all guards'))],
          _('hg qguard [-l] [-n] [PATCH] [+GUARD]... [-GUARD]...')),
     'qheader': (header, [], _('hg qheader [PATCH]')),
     "^qimport":
         (qimport,
          [('e', 'existing', None, 'import file in patch dir'),
           ('n', 'name', '', 'patch file name'),
           ('f', 'force', None, 'overwrite existing files'),
           ('r', 'rev', [], 'place existing revisions under mq control'),
           ('g', 'git', None, _('use git extended diff format'))],
          _('hg qimport [-e] [-n NAME] [-f] [-g] [-r REV]... FILE...')),
     "^qinit":
         (init,
          [('c', 'create-repo', None, 'create queue repository')],
          _('hg qinit [-c]')),
     "qnew":
         (new,
          [('e', 'edit', None, _('edit commit message')),
           ('f', 'force', None, _('import uncommitted changes into patch')),
           ('g', 'git', None, _('use git extended diff format')),
           ] + commands.walkopts + commands.commitopts + headeropts,
          _('hg qnew [-e] [-m TEXT] [-l FILE] [-f] PATCH [FILE]...')),
     "qnext": (next, [] + seriesopts, _('hg qnext [-s]')),
     "qprev": (prev, [] + seriesopts, _('hg qprev [-s]')),
     "^qpop":
         (pop,
          [('a', 'all', None, _('pop all patches')),
           ('n', 'name', '', _('queue name to pop')),
           ('f', 'force', None, _('forget any local changes'))],
          _('hg qpop [-a] [-n NAME] [-f] [PATCH | INDEX]')),
     "^qpush":
         (push,
          [('f', 'force', None, _('apply if the patch has rejects')),
           ('l', 'list', None, _('list patch name in commit text')),
           ('a', 'all', None, _('apply all patches')),
           ('m', 'merge', None, _('merge from another queue')),
           ('n', 'name', '', _('merge queue name'))],
          _('hg qpush [-f] [-l] [-a] [-m] [-n NAME] [PATCH | INDEX]')),
     "^qrefresh":
         (refresh,
          [('e', 'edit', None, _('edit commit message')),
           ('g', 'git', None, _('use git extended diff format')),
           ('s', 'short', None, _('refresh only files already in the patch')),
           ] + commands.walkopts + commands.commitopts + headeropts,
          _('hg qrefresh [-I] [-X] [-e] [-m TEXT] [-l FILE] [-s] [FILE]...')),
     'qrename|qmv':
         (rename, [], _('hg qrename PATCH1 [PATCH2]')),
     "qrestore":
         (restore,
          [('d', 'delete', None, _('delete save entry')),
           ('u', 'update', None, _('update queue working dir'))],
          _('hg qrestore [-d] [-u] REV')),
     "qsave":
         (save,
          [('c', 'copy', None, _('copy patch directory')),
           ('n', 'name', '', _('copy directory name')),
           ('e', 'empty', None, _('clear queue status file')),
           ('f', 'force', None, _('force copy'))] + commands.commitopts,
          _('hg qsave [-m TEXT] [-l FILE] [-c] [-n NAME] [-e] [-f]')),
     "qselect":
         (select,
          [('n', 'none', None, _('disable all guards')),
           ('s', 'series', None, _('list all guards in series file')),
           ('', 'pop', None, _('pop to before first guarded applied patch')),
           ('', 'reapply', None, _('pop, then reapply patches'))],
          _('hg qselect [OPTION]... [GUARD]...')),
     "qseries":
         (series,
          [('m', 'missing', None, _('print patches not in series')),
          ] + seriesopts,
          _('hg qseries [-ms]')),
     "^strip":
         (strip,
          [('f', 'force', None, _('force removal with local changes')),
           ('b', 'backup', None, _('bundle unrelated changesets')),
           ('n', 'nobackup', None, _('no backups'))],
          _('hg strip [-f] [-b] [-n] REV')),
     "qtop": (top, [] + seriesopts, _('hg qtop [-s]')),
     "qunapplied": (unapplied, [] + seriesopts, _('hg qunapplied [-s] [PATCH]')),
     "qfinish":
         (finish,
          [('a', 'applied', None, _('finish all applied changesets'))],
          _('hg qfinish [-a] [REV...]')),
 }

hgext/win32text.py

@@ -1,144 +1,144 b''
 # win32text.py - LF <-> CRLF/CR translation utilities for Windows/Mac users
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 #
 # To perform automatic newline conversion, use:
 #
 # [extensions]
 # hgext.win32text =
 # [encode]
 # ** = cleverencode:
 # # or ** = macencode:
 # [decode]
 # ** = cleverdecode:
 # # or ** = macdecode:
 #
 # If not doing conversion, to make sure you do not commit CRLF/CR by accident:
 #
 # [hooks]
 # pretxncommit.crlf = python:hgext.win32text.forbidcrlf
 # # or pretxncommit.cr = python:hgext.win32text.forbidcr
 #
 # To do the same check on a server to prevent CRLF/CR from being pushed or
 # pulled:
 #
 # [hooks]
 # pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf
 # # or pretxnchangegroup.cr = python:hgext.win32text.forbidcr
 
 from mercurial.i18n import gettext as _
 from mercurial.node import bin, short
 from mercurial import util
 import re
 
 # regexp for single LF without CR preceding.
 re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE)
 
 newlinestr = {'\r\n': 'CRLF', '\r': 'CR'}
 filterstr = {'\r\n': 'clever', '\r': 'mac'}
 
 def checknewline(s, newline, ui=None, repo=None, filename=None):
     # warn if already has 'newline' in repository.
     # it might cause unexpected eol conversion.
     # see issue 302:
     #   http://www.selenic.com/mercurial/bts/issue302
     if newline in s and ui and filename and repo:
         ui.warn(_('WARNING: %s already has %s line endings\n'
                   'and does not need EOL conversion by the win32text plugin.\n'
                   'Before your next commit, please reconsider your '
                   'encode/decode settings in \nMercurial.ini or %s.\n') %
                 (filename, newlinestr[newline], repo.join('hgrc')))
 
 def dumbdecode(s, cmd, **kwargs):
     checknewline(s, '\r\n', **kwargs)
     # replace single LF to CRLF
     return re_single_lf.sub('\\1\r\n', s)
 
 def dumbencode(s, cmd):
     return s.replace('\r\n', '\n')
 
 def macdumbdecode(s, cmd, **kwargs):
     checknewline(s, '\r', **kwargs)
     return s.replace('\n', '\r')
 
 def macdumbencode(s, cmd):
     return s.replace('\r', '\n')
 
 def cleverdecode(s, cmd, **kwargs):
     if not util.binary(s):
         return dumbdecode(s, cmd, **kwargs)
     return s
 
 def cleverencode(s, cmd):
     if not util.binary(s):
         return dumbencode(s, cmd)
     return s
 
 def macdecode(s, cmd, **kwargs):
     if not util.binary(s):
         return macdumbdecode(s, cmd, **kwargs)
     return s
 
 def macencode(s, cmd):
     if not util.binary(s):
         return macdumbencode(s, cmd)
     return s
 
 _filters = {
     'dumbdecode:': dumbdecode,
     'dumbencode:': dumbencode,
     'cleverdecode:': cleverdecode,
     'cleverencode:': cleverencode,
     'macdumbdecode:': macdumbdecode,
     'macdumbencode:': macdumbencode,
     'macdecode:': macdecode,
     'macencode:': macencode,
     }
 
 def forbidnewline(ui, repo, hooktype, node, newline, **kwargs):
     halt = False
     for rev in xrange(repo.changelog.rev(bin(node)), repo.changelog.count()):
-        c = repo.changectx(rev)
+        c = repo[rev]
         for f in c.files():
             if f not in c:
                 continue
             data = c[f].data()
             if not util.binary(data) and newline in data:
                 if not halt:
                     ui.warn(_('Attempt to commit or push text file(s) '
                               'using %s line endings\n') %
                               newlinestr[newline])
                 ui.warn(_('in %s: %s\n') % (short(c.node()), f))
                 halt = True
     if halt and hooktype == 'pretxnchangegroup':
         crlf = newlinestr[newline].lower()
         filter = filterstr[newline]
         ui.warn(_('\nTo prevent this mistake in your local repository,\n'
                   'add to Mercurial.ini or .hg/hgrc:\n'
                   '\n'
                   '[hooks]\n'
                   'pretxncommit.%s = python:hgext.win32text.forbid%s\n'
                   '\n'
                   'and also consider adding:\n'
                   '\n'
                   '[extensions]\n'
                   'hgext.win32text =\n'
                   '[encode]\n'
                   '** = %sencode:\n'
                   '[decode]\n'
                   '** = %sdecode:\n') % (crlf, crlf, filter, filter))
     return halt
 
 def forbidcrlf(ui, repo, hooktype, node, **kwargs):
     return forbidnewline(ui, repo, hooktype, node, '\r\n', **kwargs)
 
 def forbidcr(ui, repo, hooktype, node, **kwargs):
     return forbidnewline(ui, repo, hooktype, node, '\r', **kwargs)
 
 def reposetup(ui, repo):
     if not repo.local():
         return
     for name, fn in _filters.iteritems():
         repo.adddatafilter(name, fn)
 

mercurial/archival.py

@@ -1,225 +1,225 b''
 # archival.py - revision archival for mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms of
 # the GNU General Public License, incorporated herein by reference.
 
 from i18n import _
 from node import hex
 import cStringIO, os, stat, tarfile, time, util, zipfile
 import zlib, gzip
 
 def tidyprefix(dest, prefix, suffixes):
     '''choose prefix to use for names in archive.  make sure prefix is
     safe for consumers.'''
 
     if prefix:
         prefix = util.normpath(prefix)
     else:
         if not isinstance(dest, str):
             raise ValueError('dest must be string if no prefix')
         prefix = os.path.basename(dest)
         lower = prefix.lower()
         for sfx in suffixes:
             if lower.endswith(sfx):
                 prefix = prefix[:-len(sfx)]
                 break
     lpfx = os.path.normpath(util.localpath(prefix))
     prefix = util.pconvert(lpfx)
     if not prefix.endswith('/'):
         prefix += '/'
     if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix:
         raise util.Abort(_('archive prefix contains illegal components'))
     return prefix
 
 class tarit:
     '''write archive to tar file or stream.  can write uncompressed,
     or compress with gzip or bzip2.'''
 
     class GzipFileWithTime(gzip.GzipFile):
 
         def __init__(self, *args, **kw):
             timestamp = None
             if 'timestamp' in kw:
                 timestamp = kw.pop('timestamp')
             if timestamp == None:
                 self.timestamp = time.time()
             else:
                 self.timestamp = timestamp
             gzip.GzipFile.__init__(self, *args, **kw)
 
         def _write_gzip_header(self):
             self.fileobj.write('\037\213')             # magic header
             self.fileobj.write('\010')                 # compression method
             # Python 2.6 deprecates self.filename
             fname = getattr(self, 'name', None) or self.filename
             flags = 0
             if fname:
                 flags = gzip.FNAME
             self.fileobj.write(chr(flags))
             gzip.write32u(self.fileobj, long(self.timestamp))
             self.fileobj.write('\002')
             self.fileobj.write('\377')
             if fname:
                 self.fileobj.write(fname + '\000')
 
     def __init__(self, dest, prefix, mtime, kind=''):
         self.prefix = tidyprefix(dest, prefix, ['.tar', '.tar.bz2', '.tar.gz',
                                                 '.tgz', '.tbz2'])
         self.mtime = mtime
 
         def taropen(name, mode, fileobj=None):
             if kind == 'gz':
                 mode = mode[0]
                 if not fileobj:
                     fileobj = open(name, mode + 'b')
                 gzfileobj = self.GzipFileWithTime(name, mode + 'b',
                                                   zlib.Z_BEST_COMPRESSION,
                                                   fileobj, timestamp=mtime)
                 return tarfile.TarFile.taropen(name, mode, gzfileobj)
             else:
                 return tarfile.open(name, mode + kind, fileobj)
 
         if isinstance(dest, str):
             self.z = taropen(dest, mode='w:')
         else:
             # Python 2.5-2.5.1 have a regression that requires a name arg
             self.z = taropen(name='', mode='w|', fileobj=dest)
 
     def addfile(self, name, mode, islink, data):
         i = tarfile.TarInfo(self.prefix + name)
         i.mtime = self.mtime
         i.size = len(data)
         if islink:
             i.type = tarfile.SYMTYPE
             i.mode = 0777
             i.linkname = data
             data = None
         else:
             i.mode = mode
             data = cStringIO.StringIO(data)
         self.z.addfile(i, data)
 
     def done(self):
         self.z.close()
 
 class tellable:
     '''provide tell method for zipfile.ZipFile when writing to http
     response file object.'''
 
     def __init__(self, fp):
         self.fp = fp
         self.offset = 0
 
     def __getattr__(self, key):
         return getattr(self.fp, key)
 
     def write(self, s):
         self.fp.write(s)
         self.offset += len(s)
 
     def tell(self):
         return self.offset
 
 class zipit:
     '''write archive to zip file or stream.  can write uncompressed,
     or compressed with deflate.'''
 
     def __init__(self, dest, prefix, mtime, compress=True):
         self.prefix = tidyprefix(dest, prefix, ('.zip',))
         if not isinstance(dest, str):
             try:
                 dest.tell()
             except (AttributeError, IOError):
                 dest = tellable(dest)
         self.z = zipfile.ZipFile(dest, 'w',
                                  compress and zipfile.ZIP_DEFLATED or
                                  zipfile.ZIP_STORED)
         self.date_time = time.gmtime(mtime)[:6]
 
     def addfile(self, name, mode, islink, data):
         i = zipfile.ZipInfo(self.prefix + name, self.date_time)
         i.compress_type = self.z.compression
         # unzip will not honor unix file modes unless file creator is
         # set to unix (id 3).
         i.create_system = 3
         ftype = stat.S_IFREG
         if islink:
             mode = 0777
             ftype = stat.S_IFLNK
         i.external_attr = (mode | ftype) << 16L
         self.z.writestr(i, data)
 
     def done(self):
         self.z.close()
 
 class fileit:
     '''write archive as files in directory.'''
 
     def __init__(self, name, prefix, mtime):
         if prefix:
             raise util.Abort(_('cannot give prefix when archiving to files'))
         self.basedir = name
         self.opener = util.opener(self.basedir)
 
     def addfile(self, name, mode, islink, data):
         if islink:
             self.opener.symlink(data, name)
             return
         f = self.opener(name, "w", atomictemp=True)
         f.write(data)
         f.rename()
         destfile = os.path.join(self.basedir, name)
         os.chmod(destfile, mode)
 
     def done(self):
         pass
 
 archivers = {
     'files': fileit,
     'tar': tarit,
     'tbz2': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'bz2'),
     'tgz': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'gz'),
     'uzip': lambda name, prefix, mtime: zipit(name, prefix, mtime, False),
     'zip': zipit,
     }
 
 def archive(repo, dest, node, kind, decode=True, matchfn=None,
             prefix=None, mtime=None):
     '''create archive of repo as it was at node.
 
     dest can be name of directory, name of archive file, or file
     object to write archive to.
 
     kind is type of archive to create.
 
     decode tells whether to put files through decode filters from
     hgrc.
 
     matchfn is function to filter names of files to write to archive.
 
     prefix is name of path to put before every archive member.'''
 
     def write(name, mode, islink, getdata):
         if matchfn and not matchfn(name): return
         data = getdata()
         if decode:
             data = repo.wwritedata(name, data)
         archiver.addfile(name, mode, islink, data)
 
-    ctx = repo.changectx(node)
+    ctx = repo[node]
     if kind not in archivers:
         raise util.Abort(_("unknown archive type '%s'" % kind))
     archiver = archivers[kind](dest, prefix, mtime or ctx.date()[0])
     m = ctx.manifest()
     items = m.items()
     items.sort()
     if repo.ui.configbool("ui", "archivemeta", True):
         write('.hg_archival.txt', 0644, False,
               lambda: 'repo: %s\nnode: %s\n' % (
                   hex(repo.changelog.node(0)), hex(node)))
     for filename, filenode in items:
         write(filename, m.execf(filename) and 0755 or 0644, m.linkf(filename),
               lambda: repo.file(filename).read(filenode))
     archiver.done()

mercurial/cmdutil.py

@@ -1,1194 +1,1194 b''
 # cmdutil.py - help for command processing in mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import hex, nullid, nullrev, short
 from i18n import _
 import os, sys, bisect, stat
 import mdiff, bdiff, util, templater, templatefilters, patch, errno
 import match as _match
 
 revrangesep = ':'
 
 class UnknownCommand(Exception):
     """Exception raised if command is not in the command table."""
 class AmbiguousCommand(Exception):
     """Exception raised if command shortcut matches more than one command."""
 
 def findpossible(ui, cmd, table):
     """
     Return cmd -> (aliases, command table entry)
     for each matching command.
     Return debug commands (or their aliases) only if no normal command matches.
     """
     choice = {}
     debugchoice = {}
     for e in table.keys():
         aliases = e.lstrip("^").split("|")
         found = None
         if cmd in aliases:
             found = cmd
         elif not ui.config("ui", "strict"):
             for a in aliases:
                 if a.startswith(cmd):
                     found = a
                     break
         if found is not None:
             if aliases[0].startswith("debug") or found.startswith("debug"):
                 debugchoice[found] = (aliases, table[e])
             else:
                 choice[found] = (aliases, table[e])
 
     if not choice and debugchoice:
         choice = debugchoice
 
     return choice
 
 def findcmd(ui, cmd, table):
     """Return (aliases, command table entry) for command string."""
     choice = findpossible(ui, cmd, table)
 
     if cmd in choice:
         return choice[cmd]
 
     if len(choice) > 1:
         clist = choice.keys()
         clist.sort()
         raise AmbiguousCommand(cmd, clist)
 
     if choice:
         return choice.values()[0]
 
     raise UnknownCommand(cmd)
 
 def bail_if_changed(repo):
     if repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('outstanding uncommitted merge'))
     modified, added, removed, deleted = repo.status()[:4]
     if modified or added or removed or deleted:
         raise util.Abort(_("outstanding uncommitted changes"))
 
 def logmessage(opts):
     """ get the log message according to -m and -l option """
     message = opts['message']
     logfile = opts['logfile']
 
     if message and logfile:
         raise util.Abort(_('options --message and --logfile are mutually '
                            'exclusive'))
     if not message and logfile:
         try:
             if logfile == '-':
                 message = sys.stdin.read()
             else:
                 message = open(logfile).read()
         except IOError, inst:
             raise util.Abort(_("can't read commit message '%s': %s") %
                              (logfile, inst.strerror))
     return message
 
 def loglimit(opts):
     """get the log limit according to option -l/--limit"""
     limit = opts.get('limit')
     if limit:
         try:
             limit = int(limit)
         except ValueError:
             raise util.Abort(_('limit must be a positive integer'))
         if limit <= 0: raise util.Abort(_('limit must be positive'))
     else:
         limit = sys.maxint
     return limit
 
 def setremoteconfig(ui, opts):
     "copy remote options to ui tree"
     if opts.get('ssh'):
         ui.setconfig("ui", "ssh", opts['ssh'])
     if opts.get('remotecmd'):
         ui.setconfig("ui", "remotecmd", opts['remotecmd'])
 
 def revpair(repo, revs):
     '''return pair of nodes, given list of revisions. second item can
     be None, meaning use working dir.'''
 
     def revfix(repo, val, defval):
         if not val and val != 0 and defval is not None:
             val = defval
         return repo.lookup(val)
 
     if not revs:
         return repo.dirstate.parents()[0], None
     end = None
     if len(revs) == 1:
         if revrangesep in revs[0]:
             start, end = revs[0].split(revrangesep, 1)
             start = revfix(repo, start, 0)
             end = revfix(repo, end, repo.changelog.count() - 1)
         else:
             start = revfix(repo, revs[0], None)
     elif len(revs) == 2:
         if revrangesep in revs[0] or revrangesep in revs[1]:
             raise util.Abort(_('too many revisions specified'))
         start = revfix(repo, revs[0], None)
         end = revfix(repo, revs[1], None)
     else:
         raise util.Abort(_('too many revisions specified'))
     return start, end
 
 def revrange(repo, revs):
     """Yield revision as strings from a list of revision specifications."""
 
     def revfix(repo, val, defval):
         if not val and val != 0 and defval is not None:
             return defval
         return repo.changelog.rev(repo.lookup(val))
 
     seen, l = {}, []
     for spec in revs:
         if revrangesep in spec:
             start, end = spec.split(revrangesep, 1)
             start = revfix(repo, start, 0)
             end = revfix(repo, end, repo.changelog.count() - 1)
             step = start > end and -1 or 1
             for rev in xrange(start, end+step, step):
                 if rev in seen:
                     continue
                 seen[rev] = 1
                 l.append(rev)
         else:
             rev = revfix(repo, spec, None)
             if rev in seen:
                 continue
             seen[rev] = 1
             l.append(rev)
 
     return l
 
 def make_filename(repo, pat, node,
                   total=None, seqno=None, revwidth=None, pathname=None):
     node_expander = {
         'H': lambda: hex(node),
         'R': lambda: str(repo.changelog.rev(node)),
         'h': lambda: short(node),
         }
     expander = {
         '%': lambda: '%',
         'b': lambda: os.path.basename(repo.root),
         }
 
     try:
         if node:
             expander.update(node_expander)
         if node:
             expander['r'] = (lambda:
                     str(repo.changelog.rev(node)).zfill(revwidth or 0))
         if total is not None:
             expander['N'] = lambda: str(total)
         if seqno is not None:
             expander['n'] = lambda: str(seqno)
         if total is not None and seqno is not None:
             expander['n'] = lambda: str(seqno).zfill(len(str(total)))
         if pathname is not None:
             expander['s'] = lambda: os.path.basename(pathname)
             expander['d'] = lambda: os.path.dirname(pathname) or '.'
             expander['p'] = lambda: pathname
 
         newname = []
         patlen = len(pat)
         i = 0
         while i < patlen:
             c = pat[i]
             if c == '%':
                 i += 1
                 c = pat[i]
                 c = expander[c]()
             newname.append(c)
             i += 1
         return ''.join(newname)
     except KeyError, inst:
         raise util.Abort(_("invalid format spec '%%%s' in output file name") %
                          inst.args[0])
 
 def make_file(repo, pat, node=None,
               total=None, seqno=None, revwidth=None, mode='wb', pathname=None):
     if not pat or pat == '-':
         return 'w' in mode and sys.stdout or sys.stdin
     if hasattr(pat, 'write') and 'w' in mode:
         return pat
     if hasattr(pat, 'read') and 'r' in mode:
         return pat
     return open(make_filename(repo, pat, node, total, seqno, revwidth,
                               pathname),
                 mode)
 
 def match(repo, pats=[], opts={}, globbed=False, default='relpath'):
     if not globbed and default == 'relpath':
         pats = util.expand_glob(pats or [])
     m = _match.match(repo.root, repo.getcwd(), pats,
                     opts.get('include'), opts.get('exclude'), default)
     def badfn(f, msg):
         repo.ui.warn("%s: %s\n" % (m.rel(f), msg))
         return False
     m.bad = badfn
     return m
 
 def matchall(repo):
     return _match.always(repo.root, repo.getcwd())
 
 def matchfiles(repo, files):
     return _match.exact(repo.root, repo.getcwd(), files)
 
 def findrenames(repo, added=None, removed=None, threshold=0.5):
     '''find renamed files -- yields (before, after, score) tuples'''
     if added is None or removed is None:
         added, removed = repo.status()[1:3]
-    ctx = repo.changectx('.')
+    ctx = repo['.']
     for a in added:
         aa = repo.wread(a)
         bestname, bestscore = None, threshold
         for r in removed:
             rr = ctx.filectx(r).data()
 
             # bdiff.blocks() returns blocks of matching lines
             # count the number of bytes in each
             equal = 0
             alines = mdiff.splitnewlines(aa)
             matches = bdiff.blocks(aa, rr)
             for x1,x2,y1,y2 in matches:
                 for line in alines[x1:x2]:
                     equal += len(line)
 
             lengths = len(aa) + len(rr)
             if lengths:
                 myscore = equal*2.0 / lengths
                 if myscore >= bestscore:
                     bestname, bestscore = r, myscore
         if bestname:
             yield bestname, a, bestscore
 
 def addremove(repo, pats=[], opts={}, dry_run=None, similarity=None):
     if dry_run is None:
         dry_run = opts.get('dry_run')
     if similarity is None:
         similarity = float(opts.get('similarity') or 0)
     add, remove = [], []
     mapping = {}
     audit_path = util.path_auditor(repo.root)
     m = match(repo, pats, opts)
     for abs in repo.walk(m):
         target = repo.wjoin(abs)
         good = True
         try:
             audit_path(abs)
         except:
             good = False
         rel = m.rel(abs)
         exact = m.exact(abs)
         if good and abs not in repo.dirstate:
             add.append(abs)
             mapping[abs] = rel, m.exact(abs)
             if repo.ui.verbose or not exact:
                 repo.ui.status(_('adding %s\n') % ((pats and rel) or abs))
         if repo.dirstate[abs] != 'r' and (not good or not util.lexists(target)
             or (os.path.isdir(target) and not os.path.islink(target))):
             remove.append(abs)
             mapping[abs] = rel, exact
             if repo.ui.verbose or not exact:
                 repo.ui.status(_('removing %s\n') % ((pats and rel) or abs))
     if not dry_run:
         repo.remove(remove)
         repo.add(add)
     if similarity > 0:
         for old, new, score in findrenames(repo, add, remove, similarity):
             oldrel, oldexact = mapping[old]
             newrel, newexact = mapping[new]
             if repo.ui.verbose or not oldexact or not newexact:
                 repo.ui.status(_('recording removal of %s as rename to %s '
                                  '(%d%% similar)\n') %
                                (oldrel, newrel, score * 100))
             if not dry_run:
                 repo.copy(old, new)
 
 def copy(ui, repo, pats, opts, rename=False):
     # called with the repo lock held
     #
     # hgsep => pathname that uses "/" to separate directories
     # ossep => pathname that uses os.sep to separate directories
     cwd = repo.getcwd()
     targets = {}
     after = opts.get("after")
     dryrun = opts.get("dry_run")
 
     def walkpat(pat):
         srcs = []
         m = match(repo, [pat], opts, globbed=True)
         for abs in repo.walk(m):
             state = repo.dirstate[abs]
             rel = m.rel(abs)
             exact = m.exact(abs)
             if state in '?r':
                 if exact and state == '?':
                     ui.warn(_('%s: not copying - file is not managed\n') % rel)
                 if exact and state == 'r':
                     ui.warn(_('%s: not copying - file has been marked for'
                               ' remove\n') % rel)
                 continue
             # abs: hgsep
             # rel: ossep
             srcs.append((abs, rel, exact))
         return srcs
 
     # abssrc: hgsep
     # relsrc: ossep
     # otarget: ossep
     def copyfile(abssrc, relsrc, otarget, exact):
         abstarget = util.canonpath(repo.root, cwd, otarget)
         reltarget = repo.pathto(abstarget, cwd)
         target = repo.wjoin(abstarget)
         src = repo.wjoin(abssrc)
         state = repo.dirstate[abstarget]
 
         # check for collisions
         prevsrc = targets.get(abstarget)
         if prevsrc is not None:
             ui.warn(_('%s: not overwriting - %s collides with %s\n') %
                     (reltarget, repo.pathto(abssrc, cwd),
                      repo.pathto(prevsrc, cwd)))
             return
 
         # check for overwrites
         exists = os.path.exists(target)
         if (not after and exists or after and state in 'mn'):
             if not opts['force']:
                 ui.warn(_('%s: not overwriting - file exists\n') %
                         reltarget)
                 return
 
         if after:
             if not exists:
                 return
         elif not dryrun:
             try:
                 if exists:
                     os.unlink(target)
                 targetdir = os.path.dirname(target) or '.'
                 if not os.path.isdir(targetdir):
                     os.makedirs(targetdir)
                 util.copyfile(src, target)
             except IOError, inst:
                 if inst.errno == errno.ENOENT:
                     ui.warn(_('%s: deleted in working copy\n') % relsrc)
                 else:
                     ui.warn(_('%s: cannot copy - %s\n') %
                             (relsrc, inst.strerror))
                     return True # report a failure
 
         if ui.verbose or not exact:
             action = rename and "moving" or "copying"
             ui.status(_('%s %s to %s\n') % (action, relsrc, reltarget))
 
         targets[abstarget] = abssrc
 
         # fix up dirstate
         origsrc = repo.dirstate.copied(abssrc) or abssrc
         if abstarget == origsrc: # copying back a copy?
             if state not in 'mn' and not dryrun:
                 repo.dirstate.normallookup(abstarget)
         else:
             if repo.dirstate[origsrc] == 'a':
                 if not ui.quiet:
                     ui.warn(_("%s has not been committed yet, so no copy "
                               "data will be stored for %s.\n")
                             % (repo.pathto(origsrc, cwd), reltarget))
                 if abstarget not in repo.dirstate and not dryrun:
                     repo.add([abstarget])
             elif not dryrun:
                 repo.copy(origsrc, abstarget)
 
         if rename and not dryrun:
             repo.remove([abssrc], not after)
 
     # pat: ossep
     # dest ossep
     # srcs: list of (hgsep, hgsep, ossep, bool)
     # return: function that takes hgsep and returns ossep
     def targetpathfn(pat, dest, srcs):
         if os.path.isdir(pat):
             abspfx = util.canonpath(repo.root, cwd, pat)
             abspfx = util.localpath(abspfx)
             if destdirexists:
                 striplen = len(os.path.split(abspfx)[0])
             else:
                 striplen = len(abspfx)
             if striplen:
                 striplen += len(os.sep)
             res = lambda p: os.path.join(dest, util.localpath(p)[striplen:])
         elif destdirexists:
             res = lambda p: os.path.join(dest,
                                          os.path.basename(util.localpath(p)))
         else:
             res = lambda p: dest
         return res
 
     # pat: ossep
     # dest ossep
     # srcs: list of (hgsep, hgsep, ossep, bool)
     # return: function that takes hgsep and returns ossep
     def targetpathafterfn(pat, dest, srcs):
         if util.patkind(pat, None)[0]:
             # a mercurial pattern
             res = lambda p: os.path.join(dest,
                                          os.path.basename(util.localpath(p)))
         else:
             abspfx = util.canonpath(repo.root, cwd, pat)
             if len(abspfx) < len(srcs[0][0]):
                 # A directory. Either the target path contains the last
                 # component of the source path or it does not.
                 def evalpath(striplen):
                     score = 0
                     for s in srcs:
                         t = os.path.join(dest, util.localpath(s[0])[striplen:])
                         if os.path.exists(t):
                             score += 1
                     return score
 
                 abspfx = util.localpath(abspfx)
                 striplen = len(abspfx)
                 if striplen:
                     striplen += len(os.sep)
                 if os.path.isdir(os.path.join(dest, os.path.split(abspfx)[1])):
                     score = evalpath(striplen)
                     striplen1 = len(os.path.split(abspfx)[0])
                     if striplen1:
                         striplen1 += len(os.sep)
                     if evalpath(striplen1) > score:
                         striplen = striplen1
                 res = lambda p: os.path.join(dest,
                                              util.localpath(p)[striplen:])
             else:
                 # a file
                 if destdirexists:
                     res = lambda p: os.path.join(dest,
                                         os.path.basename(util.localpath(p)))
                 else:
                     res = lambda p: dest
         return res
 
 
     pats = util.expand_glob(pats)
     if not pats:
         raise util.Abort(_('no source or destination specified'))
     if len(pats) == 1:
         raise util.Abort(_('no destination specified'))
     dest = pats.pop()
     destdirexists = os.path.isdir(dest) and not os.path.islink(dest)
     if not destdirexists:
         if len(pats) > 1 or util.patkind(pats[0], None)[0]:
             raise util.Abort(_('with multiple sources, destination must be an '
                                'existing directory'))
         if util.endswithsep(dest):
             raise util.Abort(_('destination %s is not a directory') % dest)
 
     tfn = targetpathfn
     if after:
         tfn = targetpathafterfn
     copylist = []
     for pat in pats:
         srcs = walkpat(pat)
         if not srcs:
             continue
         copylist.append((tfn(pat, dest, srcs), srcs))
     if not copylist:
         raise util.Abort(_('no files to copy'))
 
     errors = 0
     for targetpath, srcs in copylist:
         for abssrc, relsrc, exact in srcs:
             if copyfile(abssrc, relsrc, targetpath(abssrc), exact):
                 errors += 1
 
     if errors:
         ui.warn(_('(consider using --after)\n'))
 
     return errors
 
 def service(opts, parentfn=None, initfn=None, runfn=None):
     '''Run a command as a service.'''
 
     if opts['daemon'] and not opts['daemon_pipefds']:
         rfd, wfd = os.pipe()
         args = sys.argv[:]
         args.append('--daemon-pipefds=%d,%d' % (rfd, wfd))
         # Don't pass --cwd to the child process, because we've already
         # changed directory.
         for i in xrange(1,len(args)):
             if args[i].startswith('--cwd='):
                 del args[i]
                 break
             elif args[i].startswith('--cwd'):
                 del args[i:i+2]
                 break
         pid = os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0),
                          args[0], args)
         os.close(wfd)
         os.read(rfd, 1)
         if parentfn:
             return parentfn(pid)
         else:
             os._exit(0)
 
     if initfn:
         initfn()
 
     if opts['pid_file']:
         fp = open(opts['pid_file'], 'w')
         fp.write(str(os.getpid()) + '\n')
         fp.close()
 
     if opts['daemon_pipefds']:
         rfd, wfd = [int(x) for x in opts['daemon_pipefds'].split(',')]
         os.close(rfd)
         try:
             os.setsid()
         except AttributeError:
             pass
         os.write(wfd, 'y')
         os.close(wfd)
         sys.stdout.flush()
         sys.stderr.flush()
         fd = os.open(util.nulldev, os.O_RDWR)
         if fd != 0: os.dup2(fd, 0)
         if fd != 1: os.dup2(fd, 1)
         if fd != 2: os.dup2(fd, 2)
         if fd not in (0, 1, 2): os.close(fd)
 
     if runfn:
         return runfn()
 
 class changeset_printer(object):
     '''show changeset information when templating not requested.'''
 
     def __init__(self, ui, repo, patch, buffered):
         self.ui = ui
         self.repo = repo
         self.buffered = buffered
         self.patch = patch
         self.header = {}
         self.hunk = {}
         self.lastheader = None
 
     def flush(self, rev):
         if rev in self.header:
             h = self.header[rev]
             if h != self.lastheader:
                 self.lastheader = h
                 self.ui.write(h)
             del self.header[rev]
         if rev in self.hunk:
             self.ui.write(self.hunk[rev])
             del self.hunk[rev]
             return 1
         return 0
 
     def show(self, rev=0, changenode=None, copies=(), **props):
         if self.buffered:
             self.ui.pushbuffer()
             self._show(rev, changenode, copies, props)
             self.hunk[rev] = self.ui.popbuffer()
         else:
             self._show(rev, changenode, copies, props)
 
     def _show(self, rev, changenode, copies, props):
         '''show a single changeset or file revision'''
         log = self.repo.changelog
         if changenode is None:
             changenode = log.node(rev)
         elif not rev:
             rev = log.rev(changenode)
 
         if self.ui.quiet:
             self.ui.write("%d:%s\n" % (rev, short(changenode)))
             return
 
         changes = log.read(changenode)
         date = util.datestr(changes[2])
         extra = changes[5]
         branch = extra.get("branch")
 
         hexfunc = self.ui.debugflag and hex or short
 
         parents = [(p, hexfunc(log.node(p)))
                    for p in self._meaningful_parentrevs(log, rev)]
 
         self.ui.write(_("changeset:   %d:%s\n") % (rev, hexfunc(changenode)))
 
         # don't show the default branch name
         if branch != 'default':
             branch = util.tolocal(branch)
             self.ui.write(_("branch:      %s\n") % branch)
         for tag in self.repo.nodetags(changenode):
             self.ui.write(_("tag:         %s\n") % tag)
         for parent in parents:
             self.ui.write(_("parent:      %d:%s\n") % parent)
 
         if self.ui.debugflag:
             self.ui.write(_("manifest:    %d:%s\n") %
                           (self.repo.manifest.rev(changes[0]), hex(changes[0])))
         self.ui.write(_("user:        %s\n") % changes[1])
         self.ui.write(_("date:        %s\n") % date)
 
         if self.ui.debugflag:
             files = self.repo.status(log.parents(changenode)[0], changenode)[:3]
             for key, value in zip([_("files:"), _("files+:"), _("files-:")],
                                   files):
                 if value:
                     self.ui.write("%-12s %s\n" % (key, " ".join(value)))
         elif changes[3] and self.ui.verbose:
             self.ui.write(_("files:       %s\n") % " ".join(changes[3]))
         if copies and self.ui.verbose:
             copies = ['%s (%s)' % c for c in copies]
             self.ui.write(_("copies:      %s\n") % ' '.join(copies))
 
         if extra and self.ui.debugflag:
             extraitems = extra.items()
             extraitems.sort()
             for key, value in extraitems:
                 self.ui.write(_("extra:       %s=%s\n")
                               % (key, value.encode('string_escape')))
 
         description = changes[4].strip()
         if description:
             if self.ui.verbose:
                 self.ui.write(_("description:\n"))
                 self.ui.write(description)
                 self.ui.write("\n\n")
             else:
                 self.ui.write(_("summary:     %s\n") %
                               description.splitlines()[0])
         self.ui.write("\n")
 
         self.showpatch(changenode)
 
     def showpatch(self, node):
         if self.patch:
             prev = self.repo.changelog.parents(node)[0]
             patch.diff(self.repo, prev, node, match=self.patch, fp=self.ui,
                        opts=patch.diffopts(self.ui))
             self.ui.write("\n")
 
     def _meaningful_parentrevs(self, log, rev):
         """Return list of meaningful (or all if debug) parentrevs for rev.
 
         For merges (two non-nullrev revisions) both parents are meaningful.
         Otherwise the first parent revision is considered meaningful if it
         is not the preceding revision.
         """
         parents = log.parentrevs(rev)
         if not self.ui.debugflag and parents[1] == nullrev:
             if parents[0] >= rev - 1:
                 parents = []
             else:
                 parents = [parents[0]]
         return parents
 
 
 class changeset_templater(changeset_printer):
     '''format changeset information.'''
 
     def __init__(self, ui, repo, patch, mapfile, buffered):
         changeset_printer.__init__(self, ui, repo, patch, buffered)
         filters = templatefilters.filters.copy()
         filters['formatnode'] = (ui.debugflag and (lambda x: x)
                                  or (lambda x: x[:12]))
         self.t = templater.templater(mapfile, filters,
                                      cache={
                                          'parent': '{rev}:{node|formatnode} ',
                                          'manifest': '{rev}:{node|formatnode}',
                                          'filecopy': '{name} ({source})'})
 
     def use_template(self, t):
         '''set template string to use'''
         self.t.cache['changeset'] = t
 
     def _show(self, rev, changenode, copies, props):
         '''show a single changeset or file revision'''
         log = self.repo.changelog
         if changenode is None:
             changenode = log.node(rev)
         elif not rev:
             rev = log.rev(changenode)
 
         changes = log.read(changenode)
 
         def showlist(name, values, plural=None, **args):
             '''expand set of values.
             name is name of key in template map.
             values is list of strings or dicts.
             plural is plural of name, if not simply name + 's'.
 
             expansion works like this, given name 'foo'.
 
             if values is empty, expand 'no_foos'.
 
             if 'foo' not in template map, return values as a string,
             joined by space.
 
             expand 'start_foos'.
 
             for each value, expand 'foo'. if 'last_foo' in template
             map, expand it instead of 'foo' for last key.
 
             expand 'end_foos'.
             '''
             if plural: names = plural
             else: names = name + 's'
             if not values:
                 noname = 'no_' + names
                 if noname in self.t:
                     yield self.t(noname, **args)
                 return
             if name not in self.t:
                 if isinstance(values[0], str):
                     yield ' '.join(values)
                 else:
                     for v in values:
                         yield dict(v, **args)
                 return
             startname = 'start_' + names
             if startname in self.t:
                 yield self.t(startname, **args)
             vargs = args.copy()
             def one(v, tag=name):
                 try:
                     vargs.update(v)
                 except (AttributeError, ValueError):
                     try:
                         for a, b in v:
                             vargs[a] = b
                     except ValueError:
                         vargs[name] = v
                 return self.t(tag, **vargs)
             lastname = 'last_' + name
             if lastname in self.t:
                 last = values.pop()
             else:
                 last = None
             for v in values:
                 yield one(v)
             if last is not None:
                 yield one(last, tag=lastname)
             endname = 'end_' + names
             if endname in self.t:
                 yield self.t(endname, **args)
 
         def showbranches(**args):
             branch = changes[5].get("branch")
             if branch != 'default':
                 branch = util.tolocal(branch)
                 return showlist('branch', [branch], plural='branches', **args)
 
         def showparents(**args):
             parents = [[('rev', p), ('node', hex(log.node(p)))]
                        for p in self._meaningful_parentrevs(log, rev)]
             return showlist('parent', parents, **args)
 
         def showtags(**args):
             return showlist('tag', self.repo.nodetags(changenode), **args)
 
         def showextras(**args):
             extras = changes[5].items()
             extras.sort()
             for key, value in extras:
                 args = args.copy()
                 args.update(dict(key=key, value=value))
                 yield self.t('extra', **args)
 
         def showcopies(**args):
             c = [{'name': x[0], 'source': x[1]} for x in copies]
             return showlist('file_copy', c, plural='file_copies', **args)
 
         files = []
         def getfiles():
             if not files:
                 files[:] = self.repo.status(
                     log.parents(changenode)[0], changenode)[:3]
             return files
         def showfiles(**args):
             return showlist('file', changes[3], **args)
         def showmods(**args):
             return showlist('file_mod', getfiles()[0], **args)
         def showadds(**args):
             return showlist('file_add', getfiles()[1], **args)
         def showdels(**args):
             return showlist('file_del', getfiles()[2], **args)
         def showmanifest(**args):
             args = args.copy()
             args.update(dict(rev=self.repo.manifest.rev(changes[0]),
                              node=hex(changes[0])))
             return self.t('manifest', **args)
 
         defprops = {
             'author': changes[1],
             'branches': showbranches,
             'date': changes[2],
             'desc': changes[4].strip(),
             'file_adds': showadds,
             'file_dels': showdels,
             'file_mods': showmods,
             'files': showfiles,
             'file_copies': showcopies,
             'manifest': showmanifest,
             'node': hex(changenode),
             'parents': showparents,
             'rev': rev,
             'tags': showtags,
             'extras': showextras,
             }
         props = props.copy()
         props.update(defprops)
 
         try:
             if self.ui.debugflag and 'header_debug' in self.t:
                 key = 'header_debug'
             elif self.ui.quiet and 'header_quiet' in self.t:
                 key = 'header_quiet'
             elif self.ui.verbose and 'header_verbose' in self.t:
                 key = 'header_verbose'
             elif 'header' in self.t:
                 key = 'header'
             else:
                 key = ''
             if key:
                 h = templater.stringify(self.t(key, **props))
                 if self.buffered:
                     self.header[rev] = h
                 else:
                     self.ui.write(h)
             if self.ui.debugflag and 'changeset_debug' in self.t:
                 key = 'changeset_debug'
             elif self.ui.quiet and 'changeset_quiet' in self.t:
                 key = 'changeset_quiet'
             elif self.ui.verbose and 'changeset_verbose' in self.t:
                 key = 'changeset_verbose'
             else:
                 key = 'changeset'
             self.ui.write(templater.stringify(self.t(key, **props)))
             self.showpatch(changenode)
         except KeyError, inst:
             raise util.Abort(_("%s: no key named '%s'") % (self.t.mapfile,
                                                            inst.args[0]))
         except SyntaxError, inst:
             raise util.Abort(_('%s: %s') % (self.t.mapfile, inst.args[0]))
 
 def show_changeset(ui, repo, opts, buffered=False, matchfn=False):
     """show one changeset using template or regular display.
 
     Display format will be the first non-empty hit of:
     1. option 'template'
     2. option 'style'
     3. [ui] setting 'logtemplate'
     4. [ui] setting 'style'
     If all of these values are either the unset or the empty string,
     regular display via changeset_printer() is done.
     """
     # options
     patch = False
     if opts.get('patch'):
         patch = matchfn or matchall(repo)
 
     tmpl = opts.get('template')
     mapfile = None
     if tmpl:
         tmpl = templater.parsestring(tmpl, quoted=False)
     else:
         mapfile = opts.get('style')
         # ui settings
         if not mapfile:
             tmpl = ui.config('ui', 'logtemplate')
             if tmpl:
                 tmpl = templater.parsestring(tmpl)
             else:
                 mapfile = ui.config('ui', 'style')
 
     if tmpl or mapfile:
         if mapfile:
             if not os.path.split(mapfile)[0]:
                 mapname = (templater.templatepath('map-cmdline.' + mapfile)
                            or templater.templatepath(mapfile))
                 if mapname: mapfile = mapname
         try:
             t = changeset_templater(ui, repo, patch, mapfile, buffered)
         except SyntaxError, inst:
             raise util.Abort(inst.args[0])
         if tmpl: t.use_template(tmpl)
         return t
     return changeset_printer(ui, repo, patch, buffered)
 
 def finddate(ui, repo, date):
     """Find the tipmost changeset that matches the given date spec"""
     df = util.matchdate(date)
-    get = util.cachefunc(lambda r: repo.changectx(r).changeset())
+    get = util.cachefunc(lambda r: repo[r].changeset())
     changeiter, matchfn = walkchangerevs(ui, repo, [], get, {'rev':None})
     results = {}
     for st, rev, fns in changeiter:
         if st == 'add':
             d = get(rev)[2]
             if df(d[0]):
                 results[rev] = d
         elif st == 'iter':
             if rev in results:
                 ui.status("Found revision %s from %s\n" %
                           (rev, util.datestr(results[rev])))
                 return str(rev)
 
     raise util.Abort(_("revision matching date not found"))
 
 def walkchangerevs(ui, repo, pats, change, opts):
     '''Iterate over files and the revs they changed in.
 
     Callers most commonly need to iterate backwards over the history
     it is interested in.  Doing so has awful (quadratic-looking)
     performance, so we use iterators in a "windowed" way.
 
     We walk a window of revisions in the desired order.  Within the
     window, we first walk forwards to gather data, then in the desired
     order (usually backwards) to display it.
 
     This function returns an (iterator, matchfn) tuple. The iterator
     yields 3-tuples. They will be of one of the following forms:
 
     "window", incrementing, lastrev: stepping through a window,
     positive if walking forwards through revs, last rev in the
     sequence iterated over - use to reset state for the current window
 
     "add", rev, fns: out-of-order traversal of the given file names
     fns, which changed during revision rev - use to gather data for
     possible display
 
     "iter", rev, None: in-order traversal of the revs earlier iterated
     over with "add" - use to display data'''
 
     def increasing_windows(start, end, windowsize=8, sizelimit=512):
         if start < end:
             while start < end:
                 yield start, min(windowsize, end-start)
                 start += windowsize
                 if windowsize < sizelimit:
                     windowsize *= 2
         else:
             while start > end:
                 yield start, min(windowsize, start-end-1)
                 start -= windowsize
                 if windowsize < sizelimit:
                     windowsize *= 2
 
     m = match(repo, pats, opts)
     follow = opts.get('follow') or opts.get('follow_first')
 
     if repo.changelog.count() == 0:
         return [], m
 
     if follow:
-        defrange = '%s:0' % repo.changectx('.').rev()
+        defrange = '%s:0' % repo['.'].rev()
     else:
         defrange = '-1:0'
     revs = revrange(repo, opts['rev'] or [defrange])
     wanted = {}
     slowpath = m.anypats() or opts.get('removed')
     fncache = {}
 
     if not slowpath and not m.files():
         # No files, no patterns.  Display all revs.
         wanted = dict.fromkeys(revs)
     copies = []
     if not slowpath:
         # Only files, no patterns.  Check the history of each file.
         def filerevgen(filelog, node):
             cl_count = repo.changelog.count()
             if node is None:
                 last = filelog.count() - 1
             else:
                 last = filelog.rev(node)
             for i, window in increasing_windows(last, nullrev):
                 revs = []
                 for j in xrange(i - window, i + 1):
                     n = filelog.node(j)
                     revs.append((filelog.linkrev(n),
                                  follow and filelog.renamed(n)))
                 revs.reverse()
                 for rev in revs:
                     # only yield rev for which we have the changelog, it can
                     # happen while doing "hg log" during a pull or commit
                     if rev[0] < cl_count:
                         yield rev
         def iterfiles():
             for filename in m.files():
                 yield filename, None
             for filename_node in copies:
                 yield filename_node
         minrev, maxrev = min(revs), max(revs)
         for file_, node in iterfiles():
             filelog = repo.file(file_)
             if filelog.count() == 0:
                 if node is None:
                     # A zero count may be a directory or deleted file, so
                     # try to find matching entries on the slow path.
                     slowpath = True
                     break
                 else:
                     ui.warn(_('%s:%s copy source revision cannot be found!\n')
                             % (file_, short(node)))
                     continue
             for rev, copied in filerevgen(filelog, node):
                 if rev <= maxrev:
                     if rev < minrev:
                         break
                     fncache.setdefault(rev, [])
                     fncache[rev].append(file_)
                     wanted[rev] = 1
                     if follow and copied:
                         copies.append(copied)
     if slowpath:
         if follow:
             raise util.Abort(_('can only follow copies/renames for explicit '
                                'file names'))
 
         # The slow path checks files modified in every changeset.
         def changerevgen():
             for i, window in increasing_windows(repo.changelog.count()-1,
                                                 nullrev):
                 for j in xrange(i - window, i + 1):
                     yield j, change(j)[3]
 
         for rev, changefiles in changerevgen():
             matches = filter(m, changefiles)
             if matches:
                 fncache[rev] = matches
                 wanted[rev] = 1
 
     class followfilter:
         def __init__(self, onlyfirst=False):
             self.startrev = nullrev
             self.roots = []
             self.onlyfirst = onlyfirst
 
         def match(self, rev):
             def realparents(rev):
                 if self.onlyfirst:
                     return repo.changelog.parentrevs(rev)[0:1]
                 else:
                     return filter(lambda x: x != nullrev,
                                   repo.changelog.parentrevs(rev))
 
             if self.startrev == nullrev:
                 self.startrev = rev
                 return True
 
             if rev > self.startrev:
                 # forward: all descendants
                 if not self.roots:
                     self.roots.append(self.startrev)
                 for parent in realparents(rev):
                     if parent in self.roots:
                         self.roots.append(rev)
                         return True
             else:
                 # backwards: all parents
                 if not self.roots:
                     self.roots.extend(realparents(self.startrev))
                 if rev in self.roots:
                     self.roots.remove(rev)
                     self.roots.extend(realparents(rev))
                     return True
 
             return False
 
     # it might be worthwhile to do this in the iterator if the rev range
     # is descending and the prune args are all within that range
     for rev in opts.get('prune', ()):
         rev = repo.changelog.rev(repo.lookup(rev))
         ff = followfilter()
         stop = min(revs[0], revs[-1])
         for x in xrange(rev, stop-1, -1):
             if ff.match(x) and x in wanted:
                 del wanted[x]
 
     def iterate():
         if follow and not m.files():
             ff = followfilter(onlyfirst=opts.get('follow_first'))
             def want(rev):
                 if ff.match(rev) and rev in wanted:
                     return True
                 return False
         else:
             def want(rev):
                 return rev in wanted
 
         for i, window in increasing_windows(0, len(revs)):
             yield 'window', revs[0] < revs[-1], revs[-1]
             nrevs = [rev for rev in revs[i:i+window] if want(rev)]
             srevs = list(nrevs)
             srevs.sort()
             for rev in srevs:
                 fns = fncache.get(rev)
                 if not fns:
                     def fns_generator():
                         for f in change(rev)[3]:
                             if m(f):
                                 yield f
                     fns = fns_generator()
                 yield 'add', rev, fns
             for rev in nrevs:
                 yield 'iter', rev, None
     return iterate(), m
 
 def commit(ui, repo, commitfunc, pats, opts):
     '''commit the specified files or all outstanding changes'''
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
     message = logmessage(opts)
 
     # extract addremove carefully -- this function can be called from a command
     # that doesn't support addremove
     if opts.get('addremove'):
         addremove(repo, pats, opts)
 
     m = match(repo, pats, opts)
     if pats:
         status = repo.status(match=m)
         modified, added, removed, deleted, unknown = status[:5]
         files = modified + added + removed
         slist = None
         for f in m.files():
             if f == '.':
                 continue
             if f not in files:
                 rf = repo.wjoin(f)
                 rel = repo.pathto(f)
                 try:
                     mode = os.lstat(rf)[stat.ST_MODE]
                 except OSError:
                     raise util.Abort(_("file %s not found!") % rel)
                 if stat.S_ISDIR(mode):
                     name = f + '/'
                     if slist is None:
                         slist = list(files)
                         slist.sort()
                     i = bisect.bisect(slist, name)
                     if i >= len(slist) or not slist[i].startswith(name):
                         raise util.Abort(_("no match under directory %s!")
                                          % rel)
                 elif not (stat.S_ISREG(mode) or stat.S_ISLNK(mode)):
                     raise util.Abort(_("can't commit %s: "
                                        "unsupported file type!") % rel)
                 elif f not in repo.dirstate:
                     raise util.Abort(_("file %s not tracked!") % rel)
         m = matchfiles(repo, files)
     try:
         return commitfunc(ui, repo, message, m, opts)
     except ValueError, inst:
         raise util.Abort(str(inst))

mercurial/commands.py

@@ -1,3339 +1,3336 b''
 # commands.py - command processing for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import hex, nullid, nullrev, short
 from repo import RepoError, NoCapability
 from i18n import _
 import os, re, sys, urllib
 import hg, util, revlog, bundlerepo, extensions, copies
 import difflib, patch, time, help, mdiff, tempfile
 import version, socket
 import archival, changegroup, cmdutil, hgweb.server, sshserver, hbisect
 import merge as merge_
 
 # Commands start here, listed alphabetically
 
 def add(ui, repo, *pats, **opts):
     """add the specified files on the next commit
 
     Schedule files to be version controlled and added to the repository.
 
     The files will be added to the repository at the next commit. To
     undo an add before that, see hg revert.
 
     If no names are given, add all files in the repository.
     """
 
     rejected = None
     exacts = {}
     names = []
     m = cmdutil.match(repo, pats, opts)
     m.bad = lambda x,y: True
     for abs in repo.walk(m):
         if m.exact(abs):
             if ui.verbose:
                 ui.status(_('adding %s\n') % m.rel(abs))
             names.append(abs)
             exacts[abs] = 1
         elif abs not in repo.dirstate:
             ui.status(_('adding %s\n') % m.rel(abs))
             names.append(abs)
     if not opts.get('dry_run'):
         rejected = repo.add(names)
         rejected = [p for p in rejected if p in exacts]
     return rejected and 1 or 0
 
 def addremove(ui, repo, *pats, **opts):
     """add all new files, delete all missing files
 
     Add all new files and remove all missing files from the repository.
 
     New files are ignored if they match any of the patterns in .hgignore. As
     with add, these changes take effect at the next commit.
 
     Use the -s option to detect renamed files. With a parameter > 0,
     this compares every removed file with every added file and records
     those similar enough as renames. This option takes a percentage
     between 0 (disabled) and 100 (files must be identical) as its
     parameter. Detecting renamed files this way can be expensive.
     """
     try:
         sim = float(opts.get('similarity') or 0)
     except ValueError:
         raise util.Abort(_('similarity must be a number'))
     if sim < 0 or sim > 100:
         raise util.Abort(_('similarity must be between 0 and 100'))
     return cmdutil.addremove(repo, pats, opts, similarity=sim/100.)
 
 def annotate(ui, repo, *pats, **opts):
     """show changeset information per file line
 
     List changes in files, showing the revision id responsible for each line
 
     This command is useful to discover who did a change or when a change took
     place.
 
     Without the -a option, annotate will avoid processing files it
     detects as binary. With -a, annotate will generate an annotation
     anyway, probably with undesirable results.
     """
     datefunc = ui.quiet and util.shortdate or util.datestr
     getdate = util.cachefunc(lambda x: datefunc(x[0].date()))
 
     if not pats:
         raise util.Abort(_('at least one file name or pattern required'))
 
     opmap = [('user', lambda x: ui.shortuser(x[0].user())),
              ('number', lambda x: str(x[0].rev())),
              ('changeset', lambda x: short(x[0].node())),
              ('date', getdate),
              ('follow', lambda x: x[0].path()),
             ]
 
     if (not opts['user'] and not opts['changeset'] and not opts['date']
         and not opts['follow']):
         opts['number'] = 1
 
     linenumber = opts.get('line_number') is not None
     if (linenumber and (not opts['changeset']) and (not opts['number'])):
         raise util.Abort(_('at least one of -n/-c is required for -l'))
 
     funcmap = [func for op, func in opmap if opts.get(op)]
     if linenumber:
         lastfunc = funcmap[-1]
         funcmap[-1] = lambda x: "%s:%s" % (lastfunc(x), x[1])
 
-    ctx = repo.changectx(opts['rev'])
+    ctx = repo[opts['rev']]
 
     m = cmdutil.match(repo, pats, opts)
     for abs in repo.walk(m, ctx.node()):
         fctx = ctx.filectx(abs)
         if not opts['text'] and util.binary(fctx.data()):
             ui.write(_("%s: binary file\n") % ((pats and m.rel(abs)) or abs))
             continue
 
         lines = fctx.annotate(follow=opts.get('follow'),
                               linenumber=linenumber)
         pieces = []
 
         for f in funcmap:
             l = [f(n) for n, dummy in lines]
             if l:
                 m = max(map(len, l))
                 pieces.append(["%*s" % (m, x) for x in l])
 
         if pieces:
             for p, l in zip(zip(*pieces), lines):
                 ui.write("%s: %s" % (" ".join(p), l[1]))
 
 def archive(ui, repo, dest, **opts):
     '''create unversioned archive of a repository revision
 
     By default, the revision used is the parent of the working
     directory; use "-r" to specify a different revision.
 
     To specify the type of archive to create, use "-t". Valid
     types are:
 
     "files" (default): a directory full of files
     "tar": tar archive, uncompressed
     "tbz2": tar archive, compressed using bzip2
     "tgz": tar archive, compressed using gzip
     "uzip": zip archive, uncompressed
     "zip": zip archive, compressed using deflate
 
     The exact name of the destination archive or directory is given
     using a format string; see "hg help export" for details.
 
     Each member added to an archive file has a directory prefix
     prepended. Use "-p" to specify a format string for the prefix.
     The default is the basename of the archive, with suffixes removed.
     '''
 
-    ctx = repo.changectx(opts['rev'])
+    ctx = repo[opts['rev']]
     if not ctx:
         raise util.Abort(_('repository has no revisions'))
     node = ctx.node()
     dest = cmdutil.make_filename(repo, dest, node)
     if os.path.realpath(dest) == repo.root:
         raise util.Abort(_('repository root cannot be destination'))
     matchfn = cmdutil.match(repo, [], opts)
     kind = opts.get('type') or 'files'
     prefix = opts['prefix']
     if dest == '-':
         if kind == 'files':
             raise util.Abort(_('cannot archive plain files to stdout'))
         dest = sys.stdout
         if not prefix: prefix = os.path.basename(repo.root) + '-%h'
     prefix = cmdutil.make_filename(repo, prefix, node)
     archival.archive(repo, dest, node, kind, not opts['no_decode'],
                      matchfn, prefix)
 
 def backout(ui, repo, node=None, rev=None, **opts):
     '''reverse effect of earlier changeset
 
     Commit the backed out changes as a new changeset. The new
     changeset is a child of the backed out changeset.
 
     If you back out a changeset other than the tip, a new head is
     created. This head will be the new tip and you should merge this
     backout changeset with another head (current one by default).
 
     The --merge option remembers the parent of the working directory
     before starting the backout, then merges the new head with that
     changeset afterwards. This saves you from doing the merge by
     hand. The result of this merge is not committed, as for a normal
     merge.
 
     See \'hg help dates\' for a list of formats valid for -d/--date.
     '''
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if not rev:
         raise util.Abort(_("please specify a revision to backout"))
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     cmdutil.bail_if_changed(repo)
     node = repo.lookup(rev)
 
     op1, op2 = repo.dirstate.parents()
     a = repo.changelog.ancestor(op1, node)
     if a != node:
         raise util.Abort(_('cannot back out change on a different branch'))
 
     p1, p2 = repo.changelog.parents(node)
     if p1 == nullid:
         raise util.Abort(_('cannot back out a change with no parents'))
     if p2 != nullid:
         if not opts['parent']:
             raise util.Abort(_('cannot back out a merge changeset without '
                                '--parent'))
         p = repo.lookup(opts['parent'])
         if p not in (p1, p2):
             raise util.Abort(_('%s is not a parent of %s') %
                              (short(p), short(node)))
         parent = p
     else:
         if opts['parent']:
             raise util.Abort(_('cannot use --parent on non-merge changeset'))
         parent = p1
 
     # the backout should appear on the same branch
     branch = repo.dirstate.branch()
     hg.clean(repo, node, show_stats=False)
     repo.dirstate.setbranch(branch)
     revert_opts = opts.copy()
     revert_opts['date'] = None
     revert_opts['all'] = True
     revert_opts['rev'] = hex(parent)
     revert_opts['no_backup'] = None
     revert(ui, repo, **revert_opts)
     commit_opts = opts.copy()
     commit_opts['addremove'] = False
     if not commit_opts['message'] and not commit_opts['logfile']:
         commit_opts['message'] = _("Backed out changeset %s") % (short(node))
         commit_opts['force_editor'] = True
     commit(ui, repo, **commit_opts)
     def nice(node):
         return '%d:%s' % (repo.changelog.rev(node), short(node))
     ui.status(_('changeset %s backs out changeset %s\n') %
               (nice(repo.changelog.tip()), nice(node)))
     if op1 != node:
         hg.clean(repo, op1, show_stats=False)
         if opts['merge']:
             ui.status(_('merging with changeset %s\n') % nice(repo.changelog.tip()))
             hg.merge(repo, hex(repo.changelog.tip()))
         else:
             ui.status(_('the backout changeset is a new head - '
                         'do not forget to merge\n'))
             ui.status(_('(use "backout --merge" '
                         'if you want to auto-merge)\n'))
 
 def bisect(ui, repo, rev=None, extra=None,
                reset=None, good=None, bad=None, skip=None, noupdate=None):
     """subdivision search of changesets
 
     This command helps to find changesets which introduce problems.
     To use, mark the earliest changeset you know exhibits the problem
     as bad, then mark the latest changeset which is free from the
     problem as good. Bisect will update your working directory to a
     revision for testing. Once you have performed tests, mark the
     working directory as bad or good and bisect will either update to
     another candidate changeset or announce that it has found the bad
     revision.
     """
     # backward compatibility
     if rev in "good bad reset init".split():
         ui.warn(_("(use of 'hg bisect <cmd>' is deprecated)\n"))
         cmd, rev, extra = rev, extra, None
         if cmd == "good":
             good = True
         elif cmd == "bad":
             bad = True
         else:
             reset = True
     elif extra or good + bad + skip + reset > 1:
         raise util.Abort("Incompatible arguments")
 
     if reset:
         p = repo.join("bisect.state")
         if os.path.exists(p):
             os.unlink(p)
         return
 
     # load state
     state = {'good': [], 'bad': [], 'skip': []}
     if os.path.exists(repo.join("bisect.state")):
         for l in repo.opener("bisect.state"):
             kind, node = l[:-1].split()
             node = repo.lookup(node)
             if kind not in state:
                 raise util.Abort(_("unknown bisect kind %s") % kind)
             state[kind].append(node)
 
     # update state
     node = repo.lookup(rev or '.')
     if good:
         state['good'].append(node)
     elif bad:
         state['bad'].append(node)
     elif skip:
         state['skip'].append(node)
 
     # save state
     f = repo.opener("bisect.state", "w", atomictemp=True)
     wlock = repo.wlock()
     try:
         for kind in state:
             for node in state[kind]:
                 f.write("%s %s\n" % (kind, hex(node)))
         f.rename()
     finally:
         del wlock
 
     if not state['good'] or not state['bad']:
         return
 
     # actually bisect
     node, changesets, good = hbisect.bisect(repo.changelog, state)
     if changesets == 0:
         ui.write(_("The first %s revision is:\n") % (good and "good" or "bad"))
         displayer = cmdutil.show_changeset(ui, repo, {})
         displayer.show(changenode=node)
     elif node is not None:
         # compute the approximate number of remaining tests
         tests, size = 0, 2
         while size <= changesets:
             tests, size = tests + 1, size * 2
         rev = repo.changelog.rev(node)
         ui.write(_("Testing changeset %s:%s "
                    "(%s changesets remaining, ~%s tests)\n")
                  % (rev, short(node), changesets, tests))
         if not noupdate:
             cmdutil.bail_if_changed(repo)
             return hg.clean(repo, node)
 
 def branch(ui, repo, label=None, **opts):
     """set or show the current branch name
 
     With no argument, show the current branch name. With one argument,
     set the working directory branch name (the branch does not exist in
     the repository until the next commit).
 
     Unless --force is specified, branch will not let you set a
     branch name that shadows an existing branch.
 
     Use the command 'hg update' to switch to an existing branch.
     """
 
     if label:
         if not opts.get('force') and label in repo.branchtags():
-            if label not in [p.branch() for p in repo.changectx(None).parents()]:
+            if label not in [p.branch() for p in repo.parents()]:
                 raise util.Abort(_('a branch of the same name already exists'
                                    ' (use --force to override)'))
         repo.dirstate.setbranch(util.fromlocal(label))
         ui.status(_('marked working directory as branch %s\n') % label)
     else:
         ui.write("%s\n" % util.tolocal(repo.dirstate.branch()))
 
 def branches(ui, repo, active=False):
     """list repository named branches
 
     List the repository's named branches, indicating which ones are
     inactive. If active is specified, only show active branches.
 
     A branch is considered active if it contains repository heads.
 
     Use the command 'hg update' to switch to an existing branch.
     """
     hexfunc = ui.debugflag and hex or short
-    activebranches = [util.tolocal(repo.changectx(n).branch())
+    activebranches = [util.tolocal(repo[n].branch())
                             for n in repo.heads()]
     branches = [(tag in activebranches, repo.changelog.rev(node), tag)
                             for tag, node in repo.branchtags().items()]
     branches.sort()
     branches.reverse()
 
     for isactive, node, tag in branches:
         if (not active) or isactive:
             if ui.quiet:
                 ui.write("%s\n" % tag)
             else:
                 rev = str(node).rjust(32 - util.locallen(tag))
                 isinactive = ((not isactive) and " (inactive)") or ''
                 data = tag, rev, hexfunc(repo.lookup(node)), isinactive
                 ui.write("%s%s:%s%s\n" % data)
 
 def bundle(ui, repo, fname, dest=None, **opts):
     """create a changegroup file
 
     Generate a compressed changegroup file collecting changesets not
     found in the other repository.
 
     If no destination repository is specified the destination is
     assumed to have all the nodes specified by one or more --base
     parameters. To create a bundle containing all changesets, use
     --all (or --base null). To change the compression method applied,
     use the -t option (by default, bundles are compressed using bz2).
 
     The bundle file can then be transferred using conventional means and
     applied to another repository with the unbundle or pull command.
     This is useful when direct push and pull are not available or when
     exporting an entire repository is undesirable.
 
     Applying bundles preserves all changeset contents including
     permissions, copy/rename information, and revision history.
     """
     revs = opts.get('rev') or None
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     if opts.get('all'):
         base = ['null']
     else:
         base = opts.get('base')
     if base:
         if dest:
             raise util.Abort(_("--base is incompatible with specifiying "
                                "a destination"))
         base = [repo.lookup(rev) for rev in base]
         # create the right base
         # XXX: nodesbetween / changegroup* should be "fixed" instead
         o = []
         has = {nullid: None}
         for n in base:
             has.update(repo.changelog.reachable(n))
         if revs:
             visit = list(revs)
         else:
             visit = repo.changelog.heads()
         seen = {}
         while visit:
             n = visit.pop(0)
             parents = [p for p in repo.changelog.parents(n) if p not in has]
             if len(parents) == 0:
                 o.insert(0, n)
             else:
                 for p in parents:
                     if p not in seen:
                         seen[p] = 1
                         visit.append(p)
     else:
         cmdutil.setremoteconfig(ui, opts)
         dest, revs, checkout = hg.parseurl(
             ui.expandpath(dest or 'default-push', dest or 'default'), revs)
         other = hg.repository(ui, dest)
         o = repo.findoutgoing(other, force=opts['force'])
 
     if revs:
         cg = repo.changegroupsubset(o, revs, 'bundle')
     else:
         cg = repo.changegroup(o, 'bundle')
 
     bundletype = opts.get('type', 'bzip2').lower()
     btypes = {'none': 'HG10UN', 'bzip2': 'HG10BZ', 'gzip': 'HG10GZ'}
     bundletype = btypes.get(bundletype)
     if bundletype not in changegroup.bundletypes:
         raise util.Abort(_('unknown bundle type specified with --type'))
 
     changegroup.writebundle(cg, fname, bundletype)
 
 def cat(ui, repo, file1, *pats, **opts):
     """output the current or given revision of files
 
     Print the specified files as they were at the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules are the same as
     for the export command, with the following additions:
 
     %s   basename of file being printed
     %d   dirname of file being printed, or '.' if in repo root
     %p   root-relative path name of file being printed
     """
-    ctx = repo.changectx(opts['rev'])
+    ctx = repo[opts['rev']]
     err = 1
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in repo.walk(m, ctx.node()):
         fp = cmdutil.make_file(repo, opts['output'], ctx.node(), pathname=abs)
         data = ctx.filectx(abs).data()
         if opts.get('decode'):
             data = repo.wwritedata(abs, data)
         fp.write(data)
         err = 0
     return err
 
 def clone(ui, source, dest=None, **opts):
     """make a copy of an existing repository
 
     Create a copy of an existing repository in a new directory.
 
     If no destination directory name is specified, it defaults to the
     basename of the source.
 
     The location of the source is added to the new repository's
     .hg/hgrc file, as the default to be used for future pulls.
 
     For efficiency, hardlinks are used for cloning whenever the source
     and destination are on the same filesystem (note this applies only
     to the repository data, not to the checked out files). Some
     filesystems, such as AFS, implement hardlinking incorrectly, but
     do not report errors. In these cases, use the --pull option to
     avoid hardlinking.
 
     In some cases, you can clone repositories and checked out files
     using full hardlinks with
 
       $ cp -al REPO REPOCLONE
 
     This is the fastest way to clone, but it is not always safe.  The
     operation is not atomic (making sure REPO is not modified during
     the operation is up to you) and you have to make sure your editor
     breaks hardlinks (Emacs and most Linux Kernel tools do so).  Also,
     this is not compatible with certain extensions that place their
     metadata under the .hg directory, such as mq.
 
     If you use the -r option to clone up to a specific revision, no
     subsequent revisions will be present in the cloned repository.
     This option implies --pull, even on local repositories.
 
     If the -U option is used, the new clone will contain only a repository
     (.hg) and no working copy (the working copy parent is the null revision).
 
     See pull for valid source format details.
 
     It is possible to specify an ssh:// URL as the destination, but no
     .hg/hgrc and working directory will be created on the remote side.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.clone(ui, source, dest,
              pull=opts['pull'],
              stream=opts['uncompressed'],
              rev=opts['rev'],
              update=not opts['noupdate'])
 
 def commit(ui, repo, *pats, **opts):
     """commit the specified files or all outstanding changes
 
     Commit changes to the given files into the repository.
 
     If a list of files is omitted, all changes reported by "hg status"
     will be committed.
 
     If you are committing the result of a merge, do not provide any
     file names or -I/-X filters.
 
     If no commit message is specified, the configured editor is started to
     enter a message.
 
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
     def commitfunc(ui, repo, message, match, opts):
         return repo.commit(match.files(), message, opts['user'], opts['date'],
                            match, force_editor=opts.get('force_editor'))
 
     node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
     if not node:
         return
     cl = repo.changelog
     rev = cl.rev(node)
     parents = cl.parentrevs(rev)
     if rev - 1 in parents:
         # one of the parents was the old tip
         return
     if (parents == (nullrev, nullrev) or
         len(cl.heads(cl.node(parents[0]))) > 1 and
         (parents[1] == nullrev or len(cl.heads(cl.node(parents[1]))) > 1)):
         ui.status(_('created new head\n'))
 
 def copy(ui, repo, *pats, **opts):
     """mark files as copied for the next commit
 
     Mark dest as having copies of source files. If dest is a
     directory, copies are put in that directory. If dest is a file,
     there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory. If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a copy
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts)
     finally:
         del wlock
 
 def debugancestor(ui, repo, *args):
     """find the ancestor revision of two revisions in a given index"""
     if len(args) == 3:
         index, rev1, rev2 = args
         r = revlog.revlog(util.opener(os.getcwd(), audit=False), index)
         lookup = r.lookup
     elif len(args) == 2:
         if not repo:
             raise util.Abort(_("There is no Mercurial repository here "
                                "(.hg not found)"))
         rev1, rev2 = args
         r = repo.changelog
         lookup = repo.lookup
     else:
         raise util.Abort(_('either two or three arguments required'))
     a = r.ancestor(lookup(rev1), lookup(rev2))
     ui.write("%d:%s\n" % (r.rev(a), hex(a)))
 
 def debugcomplete(ui, cmd='', **opts):
     """returns the completion list associated with the given command"""
 
     if opts['options']:
         options = []
         otables = [globalopts]
         if cmd:
             aliases, entry = cmdutil.findcmd(ui, cmd, table)
             otables.append(entry[1])
         for t in otables:
             for o in t:
                 if o[0]:
                     options.append('-%s' % o[0])
                 options.append('--%s' % o[1])
         ui.write("%s\n" % "\n".join(options))
         return
 
     clist = cmdutil.findpossible(ui, cmd, table).keys()
     clist.sort()
     ui.write("%s\n" % "\n".join(clist))
 
 def debugfsinfo(ui, path = "."):
     file('.debugfsinfo', 'w').write('')
     ui.write('exec: %s\n' % (util.checkexec(path) and 'yes' or 'no'))
     ui.write('symlink: %s\n' % (util.checklink(path) and 'yes' or 'no'))
     ui.write('case-sensitive: %s\n' % (util.checkcase('.debugfsinfo')
                                 and 'yes' or 'no'))
     os.unlink('.debugfsinfo')
 
-def debugrebuildstate(ui, repo, rev=""):
+def debugrebuildstate(ui, repo, rev="tip"):
     """rebuild the dirstate as it would look like for the given revision"""
-    if rev == "":
-        rev = repo.changelog.tip()
-    ctx = repo.changectx(rev)
-    files = ctx.manifest()
+    ctx = repo[rev]
     wlock = repo.wlock()
     try:
-        repo.dirstate.rebuild(rev, files)
+        repo.dirstate.rebuild(ctx.node(), ctx.manifest())
     finally:
         del wlock
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
-    m1 = repo.changectx(parent1).manifest()
-    m2 = repo.changectx(parent2).manifest()
+    m1 = repo[parent1].manifest()
+    m2 = repo[parent2].manifest()
     errors = 0
     for f in repo.dirstate:
         state = repo.dirstate[f]
         if state in "nr" and f not in m1:
             ui.warn(_("%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in "a" and f in m1:
             ui.warn(_("%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in "m" and f not in m1 and f not in m2:
             ui.warn(_("%s in state %s, but not in either manifest\n") %
                     (f, state))
             errors += 1
     for f in m1:
         state = repo.dirstate[f]
         if state not in "nrm":
             ui.warn(_("%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         error = _(".hg/dirstate inconsistent with current parent's manifest")
         raise util.Abort(error)
 
 def showconfig(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
     With no args, print names and values of all config items.
 
     With one arg of the form section.name, print just the value of
     that config item.
 
     With multiple args, print names and values of all config items
     with matching section names."""
 
     untrusted = bool(opts.get('untrusted'))
     if values:
         if len([v for v in values if '.' in v]) > 1:
             raise util.Abort(_('only one config item permitted'))
     for section, name, value in ui.walkconfig(untrusted=untrusted):
         sectname = section + '.' + name
         if values:
             for v in values:
                 if v == section:
                     ui.write('%s=%s\n' % (sectname, value))
                 elif v == sectname:
                     ui.write(value, '\n')
         else:
             ui.write('%s=%s\n' % (sectname, value))
 
 def debugsetparents(ui, repo, rev1, rev2=None):
     """manually set the parents of the current working directory
 
     This is useful for writing repository conversion tools, but should
     be used with care.
     """
 
     if not rev2:
         rev2 = hex(nullid)
 
     wlock = repo.wlock()
     try:
         repo.dirstate.setparents(repo.lookup(rev1), repo.lookup(rev2))
     finally:
         del wlock
 
 def debugstate(ui, repo, nodates=None):
     """show the contents of the current dirstate"""
     k = repo.dirstate._map.items()
     k.sort()
     timestr = ""
     showdate = not nodates
     for file_, ent in k:
         if showdate:
             if ent[3] == -1:
                 # Pad or slice to locale representation
                 locale_len = len(time.strftime("%Y-%m-%d %H:%M:%S ", time.localtime(0)))
                 timestr = 'unset'
                 timestr = timestr[:locale_len] + ' '*(locale_len - len(timestr))
             else:
                 timestr = time.strftime("%Y-%m-%d %H:%M:%S ", time.localtime(ent[3]))
         if ent[1] & 020000:
             mode = 'lnk'
         else:
             mode = '%3o' % (ent[1] & 0777)
         ui.write("%c %s %10d %s%s\n" % (ent[0], mode, ent[2], timestr, file_))
     for f in repo.dirstate.copies():
         ui.write(_("copy: %s -> %s\n") % (repo.dirstate.copied(f), f))
 
 def debugdata(ui, file_, rev):
     """dump the contents of a data file revision"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_[:-2] + ".i")
     try:
         ui.write(r.revision(r.lookup(rev)))
     except KeyError:
         raise util.Abort(_('invalid revision identifier %s') % rev)
 
 def debugdate(ui, date, range=None, **opts):
     """parse and display a date"""
     if opts["extended"]:
         d = util.parsedate(date, util.extendeddateformats)
     else:
         d = util.parsedate(date)
     ui.write("internal: %s %s\n" % d)
     ui.write("standard: %s\n" % util.datestr(d))
     if range:
         m = util.matchdate(range)
         ui.write("match: %s\n" % m(d[0]))
 
 def debugindex(ui, file_):
     """dump the contents of an index file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("   rev    offset  length   base linkrev" +
              " nodeid       p1           p2\n")
     for i in xrange(r.count()):
         node = r.node(i)
         try:
             pp = r.parents(node)
         except:
             pp = [nullid, nullid]
         ui.write("% 6d % 9d % 7d % 6d % 7d %s %s %s\n" % (
                 i, r.start(i), r.length(i), r.base(i), r.linkrev(node),
             short(node), short(pp[0]), short(pp[1])))
 
 def debugindexdot(ui, file_):
     """dump an index DAG as a .dot file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("digraph G {\n")
     for i in xrange(r.count()):
         node = r.node(i)
         pp = r.parents(node)
         ui.write("\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write("}\n")
 
 def debuginstall(ui):
     '''test Mercurial installation'''
 
     def writetemp(contents):
         (fd, name) = tempfile.mkstemp(prefix="hg-debuginstall-")
         f = os.fdopen(fd, "wb")
         f.write(contents)
         f.close()
         return name
 
     problems = 0
 
     # encoding
     ui.status(_("Checking encoding (%s)...\n") % util._encoding)
     try:
         util.fromlocal("test")
     except util.Abort, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (check that your locale is properly set)\n"))
         problems += 1
 
     # compiled modules
     ui.status(_("Checking extensions...\n"))
     try:
         import bdiff, mpatch, base85
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" One or more extensions could not be found"))
         ui.write(_(" (check that you compiled the extensions)\n"))
         problems += 1
 
     # templates
     ui.status(_("Checking templates...\n"))
     try:
         import templater
         t = templater.templater(templater.templatepath("map-cmdline.default"))
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (templates seem to have been installed incorrectly)\n"))
         problems += 1
 
     # patch
     ui.status(_("Checking patch...\n"))
     patchproblems = 0
     a = "1\n2\n3\n4\n"
     b = "1\n2\n3\ninsert\n4\n"
     fa = writetemp(a)
     d = mdiff.unidiff(a, None, b, None, os.path.basename(fa),
         os.path.basename(fa))
     fd = writetemp(d)
 
     files = {}
     try:
         patch.patch(fd, ui, cwd=os.path.dirname(fa), files=files)
     except util.Abort, e:
         ui.write(_(" patch call failed:\n"))
         ui.write(" " + str(e) + "\n")
         patchproblems += 1
     else:
         if list(files) != [os.path.basename(fa)]:
             ui.write(_(" unexpected patch output!\n"))
             patchproblems += 1
         a = file(fa).read()
         if a != b:
             ui.write(_(" patch test failed!\n"))
             patchproblems += 1
 
     if patchproblems:
         if ui.config('ui', 'patch'):
             ui.write(_(" (Current patch tool may be incompatible with patch,"
                        " or misconfigured. Please check your .hgrc file)\n"))
         else:
             ui.write(_(" Internal patcher failure, please report this error"
                        " to http://www.selenic.com/mercurial/bts\n"))
     problems += patchproblems
 
     os.unlink(fa)
     os.unlink(fd)
 
     # editor
     ui.status(_("Checking commit editor...\n"))
     editor = ui.geteditor()
     cmdpath = util.find_exe(editor) or util.find_exe(editor.split()[0])
     if not cmdpath:
         if editor == 'vi':
             ui.write(_(" No commit editor set and can't find vi in PATH\n"))
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
         else:
             ui.write(_(" Can't find editor '%s' in PATH\n") % editor)
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
             problems += 1
 
     # check username
     ui.status(_("Checking username...\n"))
     user = os.environ.get("HGUSER")
     if user is None:
         user = ui.config("ui", "username")
     if user is None:
         user = os.environ.get("EMAIL")
     if not user:
         ui.warn(" ")
         ui.username()
         ui.write(_(" (specify a username in your .hgrc file)\n"))
 
     if not problems:
         ui.status(_("No problems detected\n"))
     else:
         ui.write(_("%s problems detected,"
                    " please check your install!\n") % problems)
 
     return problems
 
 def debugrename(ui, repo, file1, *pats, **opts):
     """dump rename information"""
 
-    ctx = repo.changectx(opts.get('rev', 'tip'))
+    ctx = repo[opts.get('rev', 'tip')]
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in repo.walk(m, ctx.node()):
         fctx = ctx.filectx(abs)
         o = fctx.filelog().renamed(fctx.filenode())
         rel = m.rel(abs)
         if o:
             ui.write(_("%s renamed from %s:%s\n") % (rel, o[0], hex(o[1])))
         else:
             ui.write(_("%s not renamed\n") % rel)
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     m = cmdutil.match(repo, pats, opts)
     items = list(repo.walk(m))
     if not items:
         return
     fmt = 'f  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for abs in items]),
         max([len(m.rel(abs)) for abs in items]))
     for abs in items:
         line = fmt % (abs, m.rel(abs), m.exact(abs) and 'exact' or '')
         ui.write("%s\n" % line.rstrip())
 
 def diff(ui, repo, *pats, **opts):
     """diff repository (or selected files)
 
     Show differences between revisions for the specified files.
 
     Differences between files are shown using the unified diff format.
 
     NOTE: diff may generate unexpected results for merges, as it will
     default to comparing against the working directory's first parent
     changeset if no revisions are specified.
 
     When two revision arguments are given, then changes are shown
     between those revisions. If only one revision is specified then
     that revision is compared to the working directory, and, when no
     revisions are specified, the working directory files are compared
     to its parent.
 
     Without the -a option, diff will avoid generating diffs of files
     it detects as binary. With -a, diff will generate a diff anyway,
     probably with undesirable results.
     """
     node1, node2 = cmdutil.revpair(repo, opts['rev'])
 
     m = cmdutil.match(repo, pats, opts)
     patch.diff(repo, node1, node2, match=m, opts=patch.diffopts(ui, opts))
 
 def export(ui, repo, *changesets, **opts):
     """dump the header and diffs for one or more changesets
 
     Print the changeset header and diffs for one or more revisions.
 
     The information shown in the changeset header is: author,
     changeset hash, parent(s) and commit comment.
 
     NOTE: export may generate unexpected diff output for merge changesets,
     as it will compare the merge changeset against its first parent only.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules are as follows:
 
     %%   literal "%" character
     %H   changeset hash (40 bytes of hexadecimal)
     %N   number of patches being generated
     %R   changeset revision number
     %b   basename of the exporting repository
     %h   short-form changeset hash (12 bytes of hexadecimal)
     %n   zero-padded sequence number, starting at 1
     %r   zero-padded changeset revision number
 
     Without the -a option, export will avoid generating diffs of files
     it detects as binary. With -a, export will generate a diff anyway,
     probably with undesirable results.
 
     With the --switch-parent option, the diff will be against the second
     parent. It can be useful to review a merge.
     """
     if not changesets:
         raise util.Abort(_("export requires at least one changeset"))
     revs = cmdutil.revrange(repo, changesets)
     if len(revs) > 1:
         ui.note(_('exporting patches:\n'))
     else:
         ui.note(_('exporting patch:\n'))
     patch.export(repo, revs, template=opts['output'],
                  switch_parent=opts['switch_parent'],
                  opts=patch.diffopts(ui, opts))
 
 def grep(ui, repo, pattern, *pats, **opts):
     """search for a pattern in specified files and revisions
 
     Search revisions of files for a regular expression.
 
     This command behaves differently than Unix grep. It only accepts
     Python/Perl regexps. It searches repository history, not the
     working directory. It always prints the revision number in which
     a match appears.
 
     By default, grep only prints output for the first revision of a
     file in which it finds a match. To get it to print every revision
     that contains a change in match status ("-" for a match that
     becomes a non-match, or "+" for a non-match that becomes a match),
     use the --all flag.
     """
     reflags = 0
     if opts['ignore_case']:
         reflags |= re.I
     try:
         regexp = re.compile(pattern, reflags)
     except Exception, inst:
         ui.warn(_("grep: invalid match pattern: %s\n") % inst)
         return None
     sep, eol = ':', '\n'
     if opts['print0']:
         sep = eol = '\0'
 
     fcache = {}
     def getfile(fn):
         if fn not in fcache:
             fcache[fn] = repo.file(fn)
         return fcache[fn]
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while True:
             match = regexp.search(body, begin)
             if not match:
                 break
             mstart, mend = match.span()
             linenum += body.count('\n', begin, mstart) + 1
             lstart = body.rfind('\n', begin, mstart) + 1 or begin
             lend = body.find('\n', mend)
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
             begin = lend + 1
 
     class linestate(object):
         def __init__(self, line, linenum, colstart, colend):
             self.line = line
             self.linenum = linenum
             self.colstart = colstart
             self.colend = colend
 
         def __hash__(self):
             return hash((self.linenum, self.line))
 
         def __eq__(self, other):
             return self.line == other.line
 
     matches = {}
     copies = {}
     def grepbody(fn, rev, body):
         matches[rev].setdefault(fn, [])
         m = matches[rev][fn]
         for lnum, cstart, cend, line in matchlines(body):
             s = linestate(line, lnum, cstart, cend)
             m.append(s)
 
     def difflinestates(a, b):
         sm = difflib.SequenceMatcher(None, a, b)
         for tag, alo, ahi, blo, bhi in sm.get_opcodes():
             if tag == 'insert':
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
             elif tag == 'delete':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
             elif tag == 'replace':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
 
     prev = {}
     def display(fn, rev, states, prevstates):
         datefunc = ui.quiet and util.shortdate or util.datestr
         found = False
         filerevmatches = {}
         r = prev.get(fn, -1)
         if opts['all']:
             iter = difflinestates(states, prevstates)
         else:
             iter = [('', l) for l in prevstates]
         for change, l in iter:
             cols = [fn, str(r)]
             if opts['line_number']:
                 cols.append(str(l.linenum))
             if opts['all']:
                 cols.append(change)
             if opts['user']:
                 cols.append(ui.shortuser(get(r)[1]))
             if opts.get('date'):
                 cols.append(datefunc(get(r)[2]))
             if opts['files_with_matches']:
                 c = (fn, r)
                 if c in filerevmatches:
                     continue
                 filerevmatches[c] = 1
             else:
                 cols.append(l.line)
             ui.write(sep.join(cols), eol)
             found = True
         return found
 
     fstate = {}
     skip = {}
-    get = util.cachefunc(lambda r: repo.changectx(r).changeset())
+    get = util.cachefunc(lambda r: repo[r].changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
     found = False
     follow = opts.get('follow')
     for st, rev, fns in changeiter:
         if st == 'window':
             matches.clear()
         elif st == 'add':
-            ctx = repo.changectx(rev)
+            ctx = repo[rev]
             matches[rev] = {}
             for fn in fns:
                 if fn in skip:
                     continue
                 try:
                     grepbody(fn, rev, getfile(fn).read(ctx.filenode(fn)))
                     fstate.setdefault(fn, [])
                     if follow:
                         copied = getfile(fn).renamed(ctx.filenode(fn))
                         if copied:
                             copies.setdefault(rev, {})[fn] = copied[0]
                 except revlog.LookupError:
                     pass
         elif st == 'iter':
             states = matches[rev].items()
             states.sort()
             for fn, m in states:
                 copy = copies.get(rev, {}).get(fn)
                 if fn in skip:
                     if copy:
                         skip[copy] = True
                     continue
                 if fn in prev or fstate[fn]:
                     r = display(fn, rev, m, fstate[fn])
                     found = found or r
                     if r and not opts['all']:
                         skip[fn] = True
                         if copy:
                             skip[copy] = True
                 fstate[fn] = m
                 if copy:
                     fstate[copy] = m
                 prev[fn] = rev
 
     fstate = fstate.items()
     fstate.sort()
     for fn, state in fstate:
         if fn in skip:
             continue
         if fn not in copies.get(prev[fn], {}):
             found = display(fn, rev, {}, state) or found
     return (not found and 1) or 0
 
 def heads(ui, repo, *branchrevs, **opts):
     """show current repository heads or show branch heads
 
     With no arguments, show all repository head changesets.
 
     If branch or revisions names are given this will show the heads of
     the specified branches or the branches those revisions are tagged
     with.
 
     Repository "heads" are changesets that don't have child
     changesets. They are where development generally takes place and
     are the usual targets for update and merge operations.
 
     Branch heads are changesets that have a given branch tag, but have
     no child changesets with that tag. They are usually where
     development on the given branch takes place.
     """
     if opts['rev']:
         start = repo.lookup(opts['rev'])
     else:
         start = None
     if not branchrevs:
         # Assume we're looking repo-wide heads if no revs were specified.
         heads = repo.heads(start)
     else:
         heads = []
         visitedset = util.set()
         for branchrev in branchrevs:
-            branch = repo.changectx(branchrev).branch()
+            branch = repo[branchrev].branch()
             if branch in visitedset:
                 continue
             visitedset.add(branch)
             bheads = repo.branchheads(branch, start)
             if not bheads:
                 if branch != branchrev:
                     ui.warn(_("no changes on branch %s containing %s are "
                               "reachable from %s\n")
                             % (branch, branchrev, opts['rev']))
                 else:
                     ui.warn(_("no changes on branch %s are reachable from %s\n")
                             % (branch, opts['rev']))
             heads.extend(bheads)
     if not heads:
         return 1
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in heads:
         displayer.show(changenode=n)
 
 def help_(ui, name=None, with_version=False):
     """show help for a command, extension, or list of commands
 
     With no arguments, print a list of commands and short help.
 
     Given a command name, print help for that command.
 
     Given an extension name, print help for that extension, and the
     commands it provides."""
     option_lists = []
 
     def addglobalopts(aliases):
         if ui.verbose:
             option_lists.append((_("global options:"), globalopts))
             if name == 'shortlist':
                 option_lists.append((_('use "hg help" for the full list '
                                        'of commands'), ()))
         else:
             if name == 'shortlist':
                 msg = _('use "hg help" for the full list of commands '
                         'or "hg -v" for details')
             elif aliases:
                 msg = _('use "hg -v help%s" to show aliases and '
                         'global options') % (name and " " + name or "")
             else:
                 msg = _('use "hg -v help %s" to show global options') % name
             option_lists.append((msg, ()))
 
     def helpcmd(name):
         if with_version:
             version_(ui)
             ui.write('\n')
 
         try:
             aliases, i = cmdutil.findcmd(ui, name, table)
         except cmdutil.AmbiguousCommand, inst:
             select = lambda c: c.lstrip('^').startswith(inst.args[0])
             helplist(_('list of commands:\n\n'), select)
             return
 
         # synopsis
         ui.write("%s\n" % i[2])
 
         # aliases
         if not ui.quiet and len(aliases) > 1:
             ui.write(_("\naliases: %s\n") % ', '.join(aliases[1:]))
 
         # description
         doc = i[0].__doc__
         if not doc:
             doc = _("(No help text available)")
         if ui.quiet:
             doc = doc.splitlines(0)[0]
         ui.write("\n%s\n" % doc.rstrip())
 
         if not ui.quiet:
             # options
             if i[1]:
                 option_lists.append((_("options:\n"), i[1]))
 
             addglobalopts(False)
 
     def helplist(header, select=None):
         h = {}
         cmds = {}
         for c, e in table.items():
             f = c.split("|", 1)[0]
             if select and not select(f):
                 continue
             if name == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             if not ui.debugflag and f.startswith("debug"):
                 continue
             doc = e[0].__doc__
             if not doc:
                 doc = _("(No help text available)")
             h[f] = doc.splitlines(0)[0].rstrip()
             cmds[f] = c.lstrip("^")
 
         if not h:
             ui.status(_('no commands defined\n'))
             return
 
         ui.status(header)
         fns = h.keys()
         fns.sort()
         m = max(map(len, fns))
         for f in fns:
             if ui.verbose:
                 commands = cmds[f].replace("|",", ")
                 ui.write(" %s:\n      %s\n"%(commands, h[f]))
             else:
                 ui.write(' %-*s   %s\n' % (m, f, h[f]))
 
         if not ui.quiet:
             addglobalopts(True)
 
     def helptopic(name):
         v = None
         for i, d in help.helptable:
             l = i.split('|')
             if name in l:
                 v = i
                 header = l[-1]
                 doc = d
         if not v:
             raise cmdutil.UnknownCommand(name)
 
         # description
         if not doc:
             doc = _("(No help text available)")
         if callable(doc):
             doc = doc()
 
         ui.write("%s\n" % header)
         ui.write("%s\n" % doc.rstrip())
 
     def helpext(name):
         try:
             mod = extensions.find(name)
         except KeyError:
             raise cmdutil.UnknownCommand(name)
 
         doc = (mod.__doc__ or _('No help text available')).splitlines(0)
         ui.write(_('%s extension - %s\n') % (name.split('.')[-1], doc[0]))
         for d in doc[1:]:
             ui.write(d, '\n')
 
         ui.status('\n')
 
         try:
             ct = mod.cmdtable
         except AttributeError:
             ct = {}
 
         modcmds = dict.fromkeys([c.split('|', 1)[0] for c in ct])
         helplist(_('list of commands:\n\n'), modcmds.has_key)
 
     if name and name != 'shortlist':
         i = None
         for f in (helpcmd, helptopic, helpext):
             try:
                 f(name)
                 i = None
                 break
             except cmdutil.UnknownCommand, inst:
                 i = inst
         if i:
             raise i
 
     else:
         # program name
         if ui.verbose or with_version:
             version_(ui)
         else:
             ui.status(_("Mercurial Distributed SCM\n"))
         ui.status('\n')
 
         # list of commands
         if name == "shortlist":
             header = _('basic commands:\n\n')
         else:
             header = _('list of commands:\n\n')
 
         helplist(header)
 
     # list all option lists
     opt_output = []
     for title, options in option_lists:
         opt_output.append(("\n%s" % title, None))
         for shortopt, longopt, default, desc in options:
             if "DEPRECATED" in desc and not ui.verbose: continue
             opt_output.append(("%2s%s" % (shortopt and "-%s" % shortopt,
                                           longopt and " --%s" % longopt),
                                "%s%s" % (desc,
                                          default
                                          and _(" (default: %s)") % default
                                          or "")))
 
     if ui.verbose:
         ui.write(_("\nspecial help topics:\n"))
         topics = []
         for i, d in help.helptable:
             l = i.split('|')
             topics.append((", ".join(l[:-1]), l[-1]))
         topics_len = max([len(s[0]) for s in topics])
         for t, desc in topics:
             ui.write(" %-*s  %s\n" % (topics_len, t, desc))
 
     if opt_output:
         opts_len = max([len(line[0]) for line in opt_output if line[1]] or [0])
         for first, second in opt_output:
             if second:
                 ui.write(" %-*s  %s\n" % (opts_len, first, second))
             else:
                 ui.write("%s\n" % first)
 
 def identify(ui, repo, source=None,
              rev=None, num=None, id=None, branch=None, tags=None):
     """identify the working copy or specified revision
 
     With no revision, print a summary of the current state of the repo.
 
     With a path, do a lookup in another repository.
 
     This summary identifies the repository state using one or two parent
     hash identifiers, followed by a "+" if there are uncommitted changes
     in the working directory, a list of tags for this revision and a branch
     name for non-default branches.
     """
 
     if not repo and not source:
         raise util.Abort(_("There is no Mercurial repository here "
                            "(.hg not found)"))
 
     hexfunc = ui.debugflag and hex or short
     default = not (num or id or branch or tags)
     output = []
 
     if source:
         source, revs, checkout = hg.parseurl(ui.expandpath(source), [])
         srepo = hg.repository(ui, source)
         if not rev and revs:
             rev = revs[0]
         if not rev:
             rev = "tip"
         if num or branch or tags:
             raise util.Abort(
                 "can't query remote revision number, branch, or tags")
         output = [hexfunc(srepo.lookup(rev))]
     elif not rev:
-        ctx = repo.changectx(None)
+        ctx = repo[None]
         parents = ctx.parents()
         changed = False
         if default or id or num:
             changed = ctx.files() + ctx.deleted()
         if default or id:
             output = ["%s%s" % ('+'.join([hexfunc(p.node()) for p in parents]),
                                 (changed) and "+" or "")]
         if num:
             output.append("%s%s" % ('+'.join([str(p.rev()) for p in parents]),
                                     (changed) and "+" or ""))
     else:
-        ctx = repo.changectx(rev)
+        ctx = repo[rev]
         if default or id:
             output = [hexfunc(ctx.node())]
         if num:
             output.append(str(ctx.rev()))
 
     if not source and default and not ui.quiet:
         b = util.tolocal(ctx.branch())
         if b != 'default':
             output.append("(%s)" % b)
 
         # multiple tags for a single parent separated by '/'
         t = "/".join(ctx.tags())
         if t:
             output.append(t)
 
     if branch:
         output.append(util.tolocal(ctx.branch()))
 
     if tags:
         output.extend(ctx.tags())
 
     ui.write("%s\n" % ' '.join(output))
 
 def import_(ui, repo, patch1, *patches, **opts):
     """import an ordered set of patches
 
     Import a list of patches and commit them individually.
 
     If there are outstanding changes in the working directory, import
     will abort unless given the -f flag.
 
     You can import a patch straight from a mail message. Even patches
     as attachments work (body part must be type text/plain or
     text/x-patch to be used). From and Subject headers of email
     message are used as default committer and commit message. All
     text/plain body parts before first diff are added to commit
     message.
 
     If the imported patch was generated by hg export, user and description
     from patch override values from message headers and body. Values
     given on command line with -m and -u override these.
 
     If --exact is specified, import will set the working directory
     to the parent of each patch before applying it, and will abort
     if the resulting changeset has a different ID than the one
     recorded in the patch. This may happen due to character set
     problems or other deficiencies in the text patch format.
 
     To read a patch from standard input, use patch name "-".
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
     patches = (patch1,) + patches
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     if opts.get('exact') or not opts['force']:
         cmdutil.bail_if_changed(repo)
 
     d = opts["base"]
     strip = opts["strip"]
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         for p in patches:
             pf = os.path.join(d, p)
 
             if pf == '-':
                 ui.status(_("applying patch from stdin\n"))
                 data = patch.extract(ui, sys.stdin)
             else:
                 ui.status(_("applying %s\n") % p)
                 if os.path.exists(pf):
                     data = patch.extract(ui, file(pf, 'rb'))
                 else:
                     data = patch.extract(ui, urllib.urlopen(pf))
             tmpname, message, user, date, branch, nodeid, p1, p2 = data
 
             if tmpname is None:
                 raise util.Abort(_('no diffs found'))
 
             try:
                 cmdline_message = cmdutil.logmessage(opts)
                 if cmdline_message:
                     # pickup the cmdline msg
                     message = cmdline_message
                 elif message:
                     # pickup the patch msg
                     message = message.strip()
                 else:
                     # launch the editor
                     message = None
                 ui.debug(_('message:\n%s\n') % message)
 
-                wp = repo.changectx(None).parents()
+                wp = repo.parents()
                 if opts.get('exact'):
                     if not nodeid or not p1:
                         raise util.Abort(_('not a mercurial patch'))
                     p1 = repo.lookup(p1)
                     p2 = repo.lookup(p2 or hex(nullid))
 
                     if p1 != wp[0].node():
                         hg.clean(repo, p1)
                     repo.dirstate.setparents(p1, p2)
                 elif p2:
                     try:
                         p1 = repo.lookup(p1)
                         p2 = repo.lookup(p2)
                         if p1 == wp[0].node():
                             repo.dirstate.setparents(p1, p2)
                     except RepoError:
                         pass
                 if opts.get('exact') or opts.get('import_branch'):
                     repo.dirstate.setbranch(branch or 'default')
 
                 files = {}
                 try:
                     fuzz = patch.patch(tmpname, ui, strip=strip, cwd=repo.root,
                                        files=files)
                 finally:
                     files = patch.updatedir(ui, repo, files)
                 if not opts.get('no_commit'):
                     n = repo.commit(files, message, opts.get('user') or user,
                                     opts.get('date') or date)
                     if opts.get('exact'):
                         if hex(n) != nodeid:
                             repo.rollback()
                             raise util.Abort(_('patch is damaged'
                                                ' or loses information'))
                     # Force a dirstate write so that the next transaction
                     # backups an up-do-date file.
                     repo.dirstate.write()
             finally:
                 os.unlink(tmpname)
     finally:
         del lock, wlock
 
 def incoming(ui, repo, source="default", **opts):
     """show new changesets found in source
 
     Show new changesets found in the specified path/URL or the default
     pull location. These are the changesets that would be pulled if a pull
     was requested.
 
     For remote repository, using --bundle avoids downloading the changesets
     twice if the incoming is followed by a pull.
 
     See pull for valid source format details.
     """
     limit = cmdutil.loglimit(opts)
     source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('comparing with %s\n') % util.hidepassword(source))
     if revs:
         revs = [other.lookup(rev) for rev in revs]
     incoming = repo.findincoming(other, heads=revs, force=opts["force"])
     if not incoming:
         try:
             os.unlink(opts["bundle"])
         except:
             pass
         ui.status(_("no changes found\n"))
         return 1
 
     cleanup = None
     try:
         fname = opts["bundle"]
         if fname or not other.local():
             # create a bundle (uncompressed if other repo is not local)
             if revs is None:
                 cg = other.changegroup(incoming, "incoming")
             else:
                 cg = other.changegroupsubset(incoming, revs, 'incoming')
             bundletype = other.local() and "HG10BZ" or "HG10UN"
             fname = cleanup = changegroup.writebundle(cg, fname, bundletype)
             # keep written bundle?
             if opts["bundle"]:
                 cleanup = None
             if not other.local():
                 # use the created uncompressed bundlerepo
                 other = bundlerepo.bundlerepository(ui, repo.root, fname)
 
         o = other.changelog.nodesbetween(incoming, revs)[0]
         if opts['newest_first']:
             o.reverse()
         displayer = cmdutil.show_changeset(ui, other, opts)
         count = 0
         for n in o:
             if count >= limit:
                 break
             parents = [p for p in other.changelog.parents(n) if p != nullid]
             if opts['no_merges'] and len(parents) == 2:
                 continue
             count += 1
             displayer.show(changenode=n)
     finally:
         if hasattr(other, 'close'):
             other.close()
         if cleanup:
             os.unlink(cleanup)
 
 def init(ui, dest=".", **opts):
     """create a new repository in the given directory
 
     Initialize a new repository in the given directory. If the given
     directory does not exist, it is created.
 
     If no directory is given, the current directory is used.
 
     It is possible to specify an ssh:// URL as the destination.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.repository(ui, dest, create=1)
 
 def locate(ui, repo, *pats, **opts):
     """locate files matching specific patterns
 
     Print all files under Mercurial control whose names match the
     given patterns.
 
     This command searches the entire repository by default. To search
     just the current directory and its subdirectories, use
     "--include .".
 
     If no patterns are given to match, this command prints all file
     names.
 
     If you want to feed the output of this command into the "xargs"
     command, use the "-0" option to both this command and "xargs".
     This will avoid the problem of "xargs" treating single filenames
     that contain white space as multiple filenames.
     """
     end = opts['print0'] and '\0' or '\n'
     rev = opts['rev']
     if rev:
         node = repo.lookup(rev)
     else:
         node = None
 
     ret = 1
     m = cmdutil.match(repo, pats, opts, default='relglob')
     m.bad = lambda x,y: False
     for abs in repo.walk(m, node):
         if not node and abs not in repo.dirstate:
             continue
         if opts['fullpath']:
             ui.write(os.path.join(repo.root, abs), end)
         else:
             ui.write(((pats and m.rel(abs)) or abs), end)
         ret = 0
 
     return ret
 
 def log(ui, repo, *pats, **opts):
     """show revision history of entire repository or files
 
     Print the revision history of the specified files or the entire
     project.
 
     File history is shown without following rename or copy history of
     files. Use -f/--follow with a file name to follow history across
     renames and copies. --follow without a file name will only show
     ancestors or descendants of the starting revision. --follow-first
     only follows the first parent of merge revisions.
 
     If no revision range is specified, the default is tip:0 unless
     --follow is set, in which case the working directory parent is
     used as the starting revision.
 
     See 'hg help dates' for a list of formats valid for -d/--date.
 
     By default this command outputs: changeset id and hash, tags,
     non-trivial parents, user, date and time, and a summary for each
     commit. When the -v/--verbose switch is used, the list of changed
     files and full commit message is shown.
 
     NOTE: log -p may generate unexpected diff output for merge
     changesets, as it will compare the merge changeset against its
     first parent only. Also, the files: list will only reflect files
     that are different from BOTH parents.
 
     """
 
-    get = util.cachefunc(lambda r: repo.changectx(r).changeset())
+    get = util.cachefunc(lambda r: repo[r].changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
 
     limit = cmdutil.loglimit(opts)
     count = 0
 
     if opts['copies'] and opts['rev']:
         endrev = max(cmdutil.revrange(repo, opts['rev'])) + 1
     else:
         endrev = repo.changelog.count()
     rcache = {}
     ncache = {}
     def getrenamed(fn, rev):
         '''looks up all renames for a file (up to endrev) the first
         time the file is given. It indexes on the changerev and only
         parses the manifest if linkrev != changerev.
         Returns rename info for fn at changerev rev.'''
         if fn not in rcache:
             rcache[fn] = {}
             ncache[fn] = {}
             fl = repo.file(fn)
             for i in xrange(fl.count()):
                 node = fl.node(i)
                 lr = fl.linkrev(node)
                 renamed = fl.renamed(node)
                 rcache[fn][lr] = renamed
                 if renamed:
                     ncache[fn][node] = renamed
                 if lr >= endrev:
                     break
         if rev in rcache[fn]:
             return rcache[fn][rev]
 
         # If linkrev != rev (i.e. rev not found in rcache) fallback to
         # filectx logic.
 
         try:
-            return repo.changectx(rev).filectx(fn).renamed()
+            return repo[rev][fn].renamed()
         except revlog.LookupError:
             pass
         return None
 
     df = False
     if opts["date"]:
         df = util.matchdate(opts["date"])
 
     only_branches = opts['only_branch']
 
     displayer = cmdutil.show_changeset(ui, repo, opts, True, matchfn)
     for st, rev, fns in changeiter:
         if st == 'add':
             changenode = repo.changelog.node(rev)
             parents = [p for p in repo.changelog.parentrevs(rev)
                        if p != nullrev]
             if opts['no_merges'] and len(parents) == 2:
                 continue
             if opts['only_merges'] and len(parents) != 2:
                 continue
 
             if only_branches:
                 revbranch = get(rev)[5]['branch']
                 if revbranch not in only_branches:
                     continue
 
             if df:
                 changes = get(rev)
                 if not df(changes[2][0]):
                     continue
 
             if opts['keyword']:
                 changes = get(rev)
                 miss = 0
                 for k in [kw.lower() for kw in opts['keyword']]:
                     if not (k in changes[1].lower() or
                             k in changes[4].lower() or
                             k in " ".join(changes[3]).lower()):
                         miss = 1
                         break
                 if miss:
                     continue
 
             copies = []
             if opts.get('copies') and rev:
                 for fn in get(rev)[3]:
                     rename = getrenamed(fn, rev)
                     if rename:
                         copies.append((fn, rename[0]))
             displayer.show(rev, changenode, copies=copies)
         elif st == 'iter':
             if count == limit: break
             if displayer.flush(rev):
                 count += 1
 
 def manifest(ui, repo, node=None, rev=None):
     """output the current or given revision of the project manifest
 
     Print a list of version controlled files for the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     The manifest is the list of files being version controlled. If no revision
     is given then the first parent of the working directory is used.
 
     With -v flag, print file permissions, symlink and executable bits. With
     --debug flag, print file revision hashes.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not node:
         node = rev
 
-    m = repo.changectx(node).manifest()
+    m = repo[node].manifest()
     files = m.keys()
     files.sort()
 
     for f in files:
         if ui.debugflag:
             ui.write("%40s " % hex(m[f]))
         if ui.verbose:
             type = m.execf(f) and "*" or m.linkf(f) and "@" or " "
             perm = m.execf(f) and "755" or "644"
             ui.write("%3s %1s " % (perm, type))
         ui.write("%s\n" % f)
 
 def merge(ui, repo, node=None, force=None, rev=None):
     """merge working directory with another revision
 
     Merge the contents of the current working directory and the
     requested revision. Files that changed between either parent are
     marked as changed for the next commit and a commit must be
     performed before any further updates are allowed.
 
     If no revision is specified, the working directory's parent is a
     head revision, and the current branch contains exactly one other head,
     the other head is merged with by default. Otherwise, an explicit
     revision to merge with must be provided.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
     if not node:
         node = rev
 
     if not node:
         branch = repo.changectx(None).branch()
         bheads = repo.branchheads()
         if len(bheads) > 2:
             raise util.Abort(_("branch '%s' has %d heads - "
                                "please merge with an explicit rev") %
                              (branch, len(bheads)))
 
         parent = repo.dirstate.parents()[0]
         if len(bheads) == 1:
             if len(repo.heads()) > 1:
                 raise util.Abort(_("branch '%s' has one head - "
                                    "please merge with an explicit rev") %
                                  branch)
             msg = _('there is nothing to merge')
-            if parent != repo.lookup(repo.changectx(None).branch()):
+            if parent != repo.lookup(repo[None].branch()):
                 msg = _('%s - use "hg update" instead') % msg
             raise util.Abort(msg)
 
         if parent not in bheads:
             raise util.Abort(_('working dir not at a head rev - '
                                'use "hg update" or merge with an explicit rev'))
         node = parent == bheads[0] and bheads[-1] or bheads[0]
     return hg.merge(repo, node, force=force)
 
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in destination
 
     Show changesets not found in the specified destination repository or
     the default push location. These are the changesets that would be pushed
     if a push was requested.
 
     See pull for valid destination format details.
     """
     limit = cmdutil.loglimit(opts)
     dest, revs, checkout = hg.parseurl(
         ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
     other = hg.repository(ui, dest)
     ui.status(_('comparing with %s\n') % util.hidepassword(dest))
     o = repo.findoutgoing(other, force=opts['force'])
     if not o:
         ui.status(_("no changes found\n"))
         return 1
     o = repo.changelog.nodesbetween(o, revs)[0]
     if opts['newest_first']:
         o.reverse()
     displayer = cmdutil.show_changeset(ui, repo, opts)
     count = 0
     for n in o:
         if count >= limit:
             break
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
         if opts['no_merges'] and len(parents) == 2:
             continue
         count += 1
         displayer.show(changenode=n)
 
 def parents(ui, repo, file_=None, **opts):
     """show the parents of the working dir or revision
 
     Print the working directory's parent revisions. If a
     revision is given via --rev, the parent of that revision
     will be printed. If a file argument is given, revision in
     which the file was last changed (before the working directory
     revision or the argument to --rev if given) is printed.
     """
     rev = opts.get('rev')
     if rev:
-        ctx = repo.changectx(rev)
+        ctx = repo[rev]
     else:
-        ctx = repo.changectx(None)
+        ctx = repo[None]
 
     if file_:
         m = cmdutil.match(repo, (file_,), opts)
         if m.anypats() or len(m.files()) != 1:
             raise util.Abort(_('can only specify an explicit file name'))
         file_ = m.files()[0]
         filenodes = []
         for cp in ctx.parents():
             if not cp:
                 continue
             try:
                 filenodes.append(cp.filenode(file_))
             except revlog.LookupError:
                 pass
         if not filenodes:
             raise util.Abort(_("'%s' not found in manifest!") % file_)
         fl = repo.file(file_)
         p = [repo.lookup(fl.linkrev(fn)) for fn in filenodes]
     else:
         p = [cp.node() for cp in ctx.parents()]
 
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in p:
         if n != nullid:
             displayer.show(changenode=n)
 
 def paths(ui, repo, search=None):
     """show definition of symbolic path names
 
     Show definition of symbolic path name NAME. If no name is given, show
     definition of available names.
 
     Path names are defined in the [paths] section of /etc/mercurial/hgrc
     and $HOME/.hgrc. If run inside a repository, .hg/hgrc is used, too.
     """
     if search:
         for name, path in ui.configitems("paths"):
             if name == search:
                 ui.write("%s\n" % util.hidepassword(path))
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, util.hidepassword(path)))
 
 def postincoming(ui, repo, modheads, optupdate, checkout):
     if modheads == 0:
         return
     if optupdate:
         if modheads <= 1 or checkout:
             return hg.update(repo, checkout)
         else:
             ui.status(_("not updating, since new heads added\n"))
     if modheads > 1:
         ui.status(_("(run 'hg heads' to see heads, 'hg merge' to merge)\n"))
     else:
         ui.status(_("(run 'hg update' to get a working copy)\n"))
 
 def pull(ui, repo, source="default", **opts):
     """pull changes from the specified source
 
     Pull changes from a remote repository to a local one.
 
     This finds all changes from the repository at the specified path
     or URL and adds them to the local repository. By default, this
     does not update the copy of the project in the working directory.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       http://[user@]host[:port]/[path]
       https://[user@]host[:port]/[path]
       ssh://[user@]host[:port]/[path]
       static-http://host[:port]/[path]
 
     Paths in the local filesystem can either point to Mercurial
     repositories or to bundle files (as created by 'hg bundle' or
     'hg incoming --bundle'). The static-http:// protocol, albeit slow,
     allows access to a Mercurial repository where you simply use a web
     server to publish the .hg directory as static content.
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to pull.
 
     Some notes about using SSH with Mercurial:
     - SSH requires an accessible shell account on the destination machine
       and a copy of hg in the remote path or specified with as remotecmd.
     - path is relative to the remote user's home directory by default.
       Use an extra slash at the start of a path to specify an absolute path:
         ssh://example.com//tmp/repository
     - Mercurial doesn't use its own compression via SSH; the right thing
       to do is to configure it in your ~/.ssh/config, e.g.:
         Host *.mylocalnetwork.example.com
           Compression no
         Host *
           Compression yes
       Alternatively specify "ssh -C" as your ssh command in your hgrc or
       with the --ssh command line option.
     """
     source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('pulling from %s\n') % util.hidepassword(source))
     if revs:
         try:
             revs = [other.lookup(rev) for rev in revs]
         except NoCapability:
             error = _("Other repository doesn't support revision lookup, "
                       "so a rev cannot be specified.")
             raise util.Abort(error)
 
     modheads = repo.pull(other, heads=revs, force=opts['force'])
     return postincoming(ui, repo, modheads, opts['update'], checkout)
 
 def push(ui, repo, dest=None, **opts):
     """push changes to the specified destination
 
     Push changes from the local repository to the given destination.
 
     This is the symmetrical operation for pull. It helps to move
     changes from the current repository to a different one. If the
     destination is local this is identical to a pull in that directory
     from the current one.
 
     By default, push will refuse to run if it detects the result would
     increase the number of remote heads. This generally indicates the
     the client has forgotten to pull and merge before pushing.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       ssh://[user@]host[:port]/[path]
       http://[user@]host[:port]/[path]
       https://[user@]host[:port]/[path]
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to push. If -r is used, the named changeset and all its
     ancestors will be pushed to the remote repository.
 
     Look at the help text for the pull command for important details
     about ssh:// URLs.
 
     Pushing to http:// and https:// URLs is only possible, if this
     feature is explicitly enabled on the remote Mercurial server.
     """
     dest, revs, checkout = hg.parseurl(
         ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, dest)
     ui.status('pushing to %s\n' % util.hidepassword(dest))
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     r = repo.push(other, opts['force'], revs=revs)
     return r == 0
 
 def rawcommit(ui, repo, *pats, **opts):
     """raw commit interface (DEPRECATED)
 
     (DEPRECATED)
     Lowlevel commit, for use in helper scripts.
 
     This command is not intended to be used by normal users, as it is
     primarily useful for importing from other SCMs.
 
     This command is now deprecated and will be removed in a future
     release, please use debugsetparents and commit instead.
     """
 
     ui.warn(_("(the rawcommit command is deprecated)\n"))
 
     message = cmdutil.logmessage(opts)
 
     files = cmdutil.match(repo, pats, opts).files()
     if opts['files']:
         files += open(opts['files']).read().splitlines()
 
     parents = [repo.lookup(p) for p in opts['parent']]
 
     try:
         repo.rawcommit(files, message, opts['user'], opts['date'], *parents)
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def recover(ui, repo):
     """roll back an interrupted transaction
 
     Recover from an interrupted commit or pull.
 
     This command tries to fix the repository status after an interrupted
     operation. It should only be necessary when Mercurial suggests it.
     """
     if repo.recover():
         return hg.verify(repo)
     return 1
 
 def remove(ui, repo, *pats, **opts):
     """remove the specified files on the next commit
 
     Schedule the indicated files for removal from the repository.
 
     This only removes files from the current branch, not from the entire
     project history. -A can be used to remove only files that have already
     been deleted, -f can be used to force deletion, and -Af can be used
     to remove files from the next revision without deleting them.
 
     The following table details the behavior of remove for different file
     states (columns) and option combinations (rows). The file states are
     Added, Clean, Modified and Missing (as reported by hg status). The
     actions are Warn, Remove (from branch) and Delete (from disk).
 
            A  C  M  !
     none   W  RD W  R
     -f     R  RD RD R
     -A     W  W  W  R
     -Af    R  R  R  R
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see hg revert.
     """
 
     after, force = opts.get('after'), opts.get('force')
     if not pats and not after:
         raise util.Abort(_('no files specified'))
 
     m = cmdutil.match(repo, pats, opts)
     mardu = map(dict.fromkeys, repo.status(match=m))[:5]
     modified, added, removed, deleted, unknown = mardu
 
     remove, forget = [], []
     for abs in repo.walk(m):
 
         reason = None
         if abs in removed or abs in unknown:
             continue
 
         # last column
         elif abs in deleted:
             remove.append(abs)
 
         # rest of the third row
         elif after and not force:
             reason = _('still exists (use -f to force removal)')
 
         # rest of the first column
         elif abs in added:
             if not force:
                 reason = _('has been marked for add (use -f to force removal)')
             else:
                 forget.append(abs)
 
         # rest of the third column
         elif abs in modified:
             if not force:
                 reason = _('is modified (use -f to force removal)')
             else:
                 remove.append(abs)
 
         # rest of the second column
         elif not reason:
             remove.append(abs)
 
         if reason:
             ui.warn(_('not removing %s: file %s\n') % (m.rel(abs), reason))
         elif ui.verbose or not m.exact(abs):
             ui.status(_('removing %s\n') % m.rel(abs))
 
     repo.forget(forget)
     repo.remove(remove, unlink=not after)
 
 def rename(ui, repo, *pats, **opts):
     """rename files; equivalent of copy + remove
 
     Mark dest as copies of sources; mark sources for deletion. If
     dest is a directory, copies are put in that directory. If dest is
     a file, there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory. If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a rename
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts, rename=True)
     finally:
         del wlock
 
 def resolve(ui, repo, *pats, **opts):
     """resolve file merges from a branch merge or update
 
     This command will attempt to resolve unresolved merges from the
     last update or merge command. This will use the local file
     revision preserved at the last update or merge to cleanly retry
     the file merge attempt. With no file or options specified, this
     command will attempt to resolve all unresolved files.
 
     The codes used to show the status of files are:
     U = unresolved
     R = resolved
     """
 
     if len([x for x in opts if opts[x]]) > 1:
         raise util.Abort(_("too many options specified"))
 
     ms = merge_.mergestate(repo)
     m = cmdutil.match(repo, pats, opts)
 
     for f in ms:
         if m(f):
             if opts.get("list"):
                 ui.write("%s %s\n" % (ms[f].upper(), f))
             elif opts.get("mark"):
                 ms.mark(f, "r")
             elif opts.get("unmark"):
                 ms.mark(f, "u")
             else:
-                wctx = repo.changectx(None)
+                wctx = repo[None]
                 mctx = wctx.parents()[-1]
                 ms.resolve(f, wctx, mctx)
 
 def revert(ui, repo, *pats, **opts):
     """restore individual files or dirs to an earlier state
 
     (use update -r to check out earlier revisions, revert does not
     change the working dir parents)
 
     With no revision specified, revert the named files or directories
     to the contents they had in the parent of the working directory.
     This restores the contents of the affected files to an unmodified
     state and unschedules adds, removes, copies, and renames. If the
     working directory has two parents, you must explicitly specify the
     revision to revert to.
 
     Using the -r option, revert the given files or directories to their
     contents as of a specific revision. This can be helpful to "roll
     back" some or all of an earlier change.
     See 'hg help dates' for a list of formats valid for -d/--date.
 
     Revert modifies the working directory. It does not commit any
     changes, or change the parent of the working directory. If you
     revert to a revision other than the parent of the working
     directory, the reverted files will thus appear modified
     afterwards.
 
     If a file has been deleted, it is restored. If the executable
     mode of a file was changed, it is reset.
 
     If names are given, all files matching the names are reverted.
     If no arguments are given, no files are reverted.
 
     Modified files are saved with a .orig suffix before reverting.
     To disable these backups, use --no-backup.
     """
 
     if opts["date"]:
         if opts["rev"]:
             raise util.Abort(_("you can't specify a revision and a date"))
         opts["rev"] = cmdutil.finddate(ui, repo, opts["date"])
 
     if not pats and not opts['all']:
         raise util.Abort(_('no files or directories specified; '
                            'use --all to revert the whole repo'))
 
     parent, p2 = repo.dirstate.parents()
     if not opts['rev'] and p2 != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
-    ctx = repo.changectx(opts['rev'])
+    ctx = repo[opts['rev']]
     node = ctx.node()
     mf = ctx.manifest()
     if node == parent:
         pmf = mf
     else:
         pmf = None
 
     # need all matching names in dirstate and manifest of target rev,
     # so have to walk both. do not print errors if files exist in one
     # but not other.
 
     names = {}
 
     wlock = repo.wlock()
     try:
         # walk dirstate.
         files = []
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = lambda x,y: False
         for abs in repo.walk(m):
             names[abs] = m.rel(abs), m.exact(abs)
 
         # walk target manifest.
 
         def badfn(path, msg):
             if path in names:
                 return False
             path_ = path + '/'
             for f in names:
                 if f.startswith(path_):
                     return False
             repo.ui.warn("%s: %s\n" % (m.rel(path), msg))
             return False
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = badfn
         for abs in repo.walk(m, node=node):
             if abs not in names:
                 names[abs] = m.rel(abs), m.exact(abs)
 
         m = cmdutil.matchfiles(repo, names)
         changes = repo.status(match=m)[:4]
         modified, added, removed, deleted = map(dict.fromkeys, changes)
 
         # if f is a rename, also revert the source
         cwd = repo.getcwd()
         for f in added:
             src = repo.dirstate.copied(f)
             if src and src not in names and repo.dirstate[src] == 'r':
                 removed[src] = None
                 names[src] = (repo.pathto(src, cwd), True)
 
         def removeforget(abs):
             if repo.dirstate[abs] == 'a':
                 return _('forgetting %s\n')
             return _('removing %s\n')
 
         revert = ([], _('reverting %s\n'))
         add = ([], _('adding %s\n'))
         remove = ([], removeforget)
         undelete = ([], _('undeleting %s\n'))
 
         disptable = (
             # dispatch table:
             #   file state
             #   action if in target manifest
             #   action if not in target manifest
             #   make backup if in target manifest
             #   make backup if not in target manifest
             (modified, revert, remove, True, True),
             (added, revert, remove, True, False),
             (removed, undelete, None, False, False),
             (deleted, revert, remove, False, False),
             )
 
         entries = names.items()
         entries.sort()
 
         for abs, (rel, exact) in entries:
             mfentry = mf.get(abs)
             target = repo.wjoin(abs)
             def handle(xlist, dobackup):
                 xlist[0].append(abs)
                 if dobackup and not opts['no_backup'] and util.lexists(target):
                     bakname = "%s.orig" % rel
                     ui.note(_('saving current version of %s as %s\n') %
                             (rel, bakname))
                     if not opts.get('dry_run'):
                         util.copyfile(target, bakname)
                 if ui.verbose or not exact:
                     msg = xlist[1]
                     if not isinstance(msg, basestring):
                         msg = msg(abs)
                     ui.status(msg % rel)
             for table, hitlist, misslist, backuphit, backupmiss in disptable:
                 if abs not in table: continue
                 # file has changed in dirstate
                 if mfentry:
                     handle(hitlist, backuphit)
                 elif misslist is not None:
                     handle(misslist, backupmiss)
                 break
             else:
                 if abs not in repo.dirstate:
                     if mfentry:
                         handle(add, True)
                     elif exact:
                         ui.warn(_('file not managed: %s\n') % rel)
                     continue
                 # file has not changed in dirstate
                 if node == parent:
                     if exact: ui.warn(_('no changes needed to %s\n') % rel)
                     continue
                 if pmf is None:
                     # only need parent manifest in this unlikely case,
                     # so do not read by default
-                    pmf = repo.changectx(parent).manifest()
+                    pmf = repo[parent].manifest()
                 if abs in pmf:
                     if mfentry:
                         # if version of file is same in parent and target
                         # manifests, do nothing
                         if (pmf[abs] != mfentry or
                             pmf.flags(abs) != mf.flags(abs)):
                             handle(revert, False)
                     else:
                         handle(remove, False)
 
         if not opts.get('dry_run'):
             def checkout(f):
                 fc = ctx[f]
                 repo.wwrite(f, fc.data(), fc.flags())
 
             audit_path = util.path_auditor(repo.root)
             for f in remove[0]:
                 if repo.dirstate[f] == 'a':
                     repo.dirstate.forget(f)
                     continue
                 audit_path(f)
                 try:
                     util.unlink(repo.wjoin(f))
                 except OSError:
                     pass
                 repo.dirstate.remove(f)
 
             normal = None
             if node == parent:
                 # We're reverting to our parent. If possible, we'd like status
                 # to report the file as clean. We have to use normallookup for
                 # merges to avoid losing information about merged/dirty files.
                 if p2 != nullid:
                     normal = repo.dirstate.normallookup
                 else:
                     normal = repo.dirstate.normal
             for f in revert[0]:
                 checkout(f)
                 if normal:
                     normal(f)
 
             for f in add[0]:
                 checkout(f)
                 repo.dirstate.add(f)
 
             normal = repo.dirstate.normallookup
             if node == parent and p2 == nullid:
                 normal = repo.dirstate.normal
             for f in undelete[0]:
                 checkout(f)
                 normal(f)
 
     finally:
         del wlock
 
 def rollback(ui, repo):
     """roll back the last transaction
 
     This command should be used with care. There is only one level of
     rollback, and there is no way to undo a rollback. It will also
     restore the dirstate at the time of the last transaction, losing
     any dirstate changes since that time.
 
     Transactions are used to encapsulate the effects of all commands
     that create new changesets or propagate existing changesets into a
     repository. For example, the following commands are transactional,
     and their effects can be rolled back:
 
       commit
       import
       pull
       push (with this repository as destination)
       unbundle
 
     This command is not intended for use on public repositories. Once
     changes are visible for pull by other users, rolling a transaction
     back locally is ineffective (someone else may already have pulled
     the changes). Furthermore, a race is possible with readers of the
     repository; for example an in-progress pull from the repository
     may fail if a rollback is performed.
     """
     repo.rollback()
 
 def root(ui, repo):
     """print the root (top) of the current working dir
 
     Print the root directory of the current repository.
     """
     ui.write(repo.root + "\n")
 
 def serve(ui, repo, **opts):
     """export the repository via HTTP
 
     Start a local HTTP repository browser and pull server.
 
     By default, the server logs accesses to stdout and errors to
     stderr. Use the "-A" and "-E" options to log to files.
     """
 
     if opts["stdio"]:
         if repo is None:
             raise RepoError(_("There is no Mercurial repository here"
                               " (.hg not found)"))
         s = sshserver.sshserver(ui, repo)
         s.serve_forever()
 
     parentui = ui.parentui or ui
     optlist = ("name templates style address port prefix ipv6"
                " accesslog errorlog webdir_conf certificate")
     for o in optlist.split():
         if opts[o]:
             parentui.setconfig("web", o, str(opts[o]))
             if (repo is not None) and (repo.ui != parentui):
                 repo.ui.setconfig("web", o, str(opts[o]))
 
     if repo is None and not ui.config("web", "webdir_conf"):
         raise RepoError(_("There is no Mercurial repository here"
                           " (.hg not found)"))
 
     class service:
         def init(self):
             util.set_signal_handler()
             self.httpd = hgweb.server.create_server(parentui, repo)
 
             if not ui.verbose: return
 
             if self.httpd.prefix:
                 prefix = self.httpd.prefix.strip('/') + '/'
             else:
                 prefix = ''
 
             port = ':%d' % self.httpd.port
             if port == ':80':
                 port = ''
 
             bindaddr = self.httpd.addr
             if bindaddr == '0.0.0.0':
                 bindaddr = '*'
             elif ':' in bindaddr: # IPv6
                 bindaddr = '[%s]' % bindaddr
 
             fqaddr = self.httpd.fqaddr
             if ':' in fqaddr:
                 fqaddr = '[%s]' % fqaddr
             ui.status(_('listening at http://%s%s/%s (bound to %s:%d)\n') %
                       (fqaddr, port, prefix, bindaddr, self.httpd.port))
 
         def run(self):
             self.httpd.serve_forever()
 
     service = service()
 
     cmdutil.service(opts, initfn=service.init, runfn=service.run)
 
 def status(ui, repo, *pats, **opts):
     """show changed files in the working directory
 
     Show status of files in the repository. If names are given, only
     files that match are shown. Files that are clean or ignored or
     source of a copy/move operation, are not listed unless -c (clean),
     -i (ignored), -C (copies) or -A is given. Unless options described
     with "show only ..." are given, the options -mardu are used.
 
     Option -q/--quiet hides untracked (unknown and ignored) files
     unless explicitly requested with -u/--unknown or -i/-ignored.
 
     NOTE: status may appear to disagree with diff if permissions have
     changed or a merge has occurred. The standard diff format does not
     report permission changes and diff only reports changes relative
     to one merge parent.
 
     If one revision is given, it is used as the base revision.
     If two revisions are given, the difference between them is shown.
 
     The codes used to show the status of files are:
     M = modified
     A = added
     R = removed
     C = clean
     ! = deleted, but still tracked
     ? = not tracked
     I = ignored
       = the previous added file was copied from here
     """
 
     node1, node2 = cmdutil.revpair(repo, opts.get('rev'))
     cwd = (pats and repo.getcwd()) or ''
     end = opts['print0'] and '\0' or '\n'
     copy = {}
     states = 'modified added removed deleted unknown ignored clean'.split()
     show = [k for k in states if opts[k]]
     if opts['all']:
         show += ui.quiet and (states[:4] + ['clean']) or states
     if not show:
         show = ui.quiet and states[:4] or states[:5]
 
     stat = repo.status(node1, node2, cmdutil.match(repo, pats, opts),
                        'ignored' in show, 'clean' in show, 'unknown' in show)
     changestates = zip(states, 'MAR!?IC', stat)
 
     if (opts['all'] or opts['copies']) and not opts['no_status']:
-        ctxn = repo.changectx(nullid)
-        ctx1 = repo.changectx(node1)
-        ctx2 = repo.changectx(node2)
+        ctxn = repo[nullid]
+        ctx1 = repo[node1]
+        ctx2 = repo[node2]
         added = stat[1]
         if node2 is None:
             added = stat[0] + stat[1] # merged?
 
         for k, v in copies.copies(repo, ctx1, ctx2, ctxn)[0].items():
             if k in added:
                 copy[k] = v
             elif v in added:
                 copy[v] = k
 
     for state, char, files in changestates:
         if state in show:
             format = "%s %%s%s" % (char, end)
             if opts['no_status']:
                 format = "%%s%s" % end
 
             for f in files:
                 ui.write(format % repo.pathto(f, cwd))
                 if f in copy:
                     ui.write('  %s%s' % (repo.pathto(copy[f], cwd), end))
 
 def tag(ui, repo, name1, *names, **opts):
     """add one or more tags for the current or given revision
 
     Name a particular revision using <name>.
 
     Tags are used to name particular revisions of the repository and are
     very useful to compare different revisions, to go back to significant
     earlier versions or to mark branch points as releases, etc.
 
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     To facilitate version control, distribution, and merging of tags,
     they are stored as a file named ".hgtags" which is managed
     similarly to other project files and can be hand-edited if
     necessary. The file '.hg/localtags' is used for local tags (not
     shared among repositories).
 
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
 
     rev_ = "."
     names = (name1,) + names
     if len(names) != len(dict.fromkeys(names)):
         raise util.Abort(_('tag names must be unique'))
     for n in names:
         if n in ['tip', '.', 'null']:
             raise util.Abort(_('the name \'%s\' is reserved') % n)
     if opts['rev'] and opts['remove']:
         raise util.Abort(_("--rev and --remove are incompatible"))
     if opts['rev']:
         rev_ = opts['rev']
     message = opts['message']
     if opts['remove']:
         expectedtype = opts['local'] and 'local' or 'global'
         for n in names:
             if not repo.tagtype(n):
                 raise util.Abort(_('tag \'%s\' does not exist') % n)
             if repo.tagtype(n) != expectedtype:
                 raise util.Abort(_('tag \'%s\' is not a %s tag') %
                                  (n, expectedtype))
         rev_ = nullid
         if not message:
             message = _('Removed tag %s') % ', '.join(names)
     elif not opts['force']:
         for n in names:
             if n in repo.tags():
                 raise util.Abort(_('tag \'%s\' already exists '
                                    '(use -f to force)') % n)
     if not rev_ and repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
-    r = repo.changectx(rev_).node()
+    r = repo[rev_].node()
 
     if not message:
         message = (_('Added tag %s for changeset %s') %
                    (', '.join(names), short(r)))
 
     date = opts.get('date')
     if date:
         date = util.parsedate(date)
 
     repo.tag(names, r, message, opts['local'], opts['user'], date)
 
 def tags(ui, repo):
     """list repository tags
 
     List the repository tags.
 
     This lists both regular and local tags. When the -v/--verbose switch
     is used, a third column "local" is printed for local tags.
     """
 
     l = repo.tagslist()
     l.reverse()
     hexfunc = ui.debugflag and hex or short
     tagtype = ""
 
     for t, n in l:
         if ui.quiet:
             ui.write("%s\n" % t)
             continue
 
         try:
             hn = hexfunc(n)
             r = "%5d:%s" % (repo.changelog.rev(n), hn)
         except revlog.LookupError:
             r = "    ?:%s" % hn
         else:
             spaces = " " * (30 - util.locallen(t))
             if ui.verbose:
                 if repo.tagtype(t) == 'local':
                     tagtype = " local"
                 else:
                     tagtype = ""
             ui.write("%s%s %s%s\n" % (t, spaces, r, tagtype))
 
 def tip(ui, repo, **opts):
     """show the tip revision
 
     The tip revision (usually just called the tip) is the most
     recently added changeset in the repository, the most recently
     changed head.
 
     If you have just made a commit, that commit will be the tip. If
     you have just pulled changes from another repository, the tip of
     that repository becomes the current tip. The "tip" tag is special
     and cannot be renamed or assigned to a different changeset.
     """
     cmdutil.show_changeset(ui, repo, opts).show(nullrev+repo.changelog.count())
 
 def unbundle(ui, repo, fname1, *fnames, **opts):
     """apply one or more changegroup files
 
     Apply one or more compressed changegroup files generated by the
     bundle command.
     """
     fnames = (fname1,) + fnames
 
     lock = None
     try:
         lock = repo.lock()
         for fname in fnames:
             if os.path.exists(fname):
                 f = open(fname, "rb")
             else:
                 f = urllib.urlopen(fname)
             gen = changegroup.readbundle(f, fname)
             modheads = repo.addchangegroup(gen, 'unbundle', 'bundle:' + fname)
     finally:
         del lock
 
     return postincoming(ui, repo, modheads, opts['update'], None)
 
 def update(ui, repo, node=None, rev=None, clean=False, date=None):
     """update working directory
 
     Update the repository's working directory to the specified revision,
     or the tip of the current branch if none is specified.
 
     If the requested revision is a descendant of the working
     directory, any outstanding changes in the working directory will
     be merged into the result. If it is not directly descended but is
     on the same named branch, update aborts with a suggestion to use
     merge or update -C instead.
 
     If the requested revision is on a different named branch and the
     working directory is clean, update quietly switches branches.
 
     See 'hg help dates' for a list of formats valid for --date.
     """
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if date:
         if rev:
             raise util.Abort(_("you can't specify a revision and a date"))
         rev = cmdutil.finddate(ui, repo, date)
 
     if clean:
         return hg.clean(repo, rev)
     else:
         return hg.update(repo, rev)
 
 def verify(ui, repo):
     """verify the integrity of the repository
 
     Verify the integrity of the current repository.
 
     This will perform an extensive check of the repository's
     integrity, validating the hashes and checksums of each entry in
     the changelog, manifest, and tracked files, as well as the
     integrity of their crosslinks and indices.
     """
     return hg.verify(repo)
 
 def version_(ui):
     """output version and copyright information"""
     ui.write(_("Mercurial Distributed SCM (version %s)\n")
              % version.get_version())
     ui.status(_(
         "\nCopyright (C) 2005-2008 Matt Mackall <[e-mail]> and others\n"
         "This is free software; see the source for copying conditions. "
         "There is NO\nwarranty; "
         "not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     ))
 
 # Command options and aliases are listed here, alphabetically
 
 globalopts = [
     ('R', 'repository', '',
      _('repository root directory or symbolic path name')),
     ('', 'cwd', '', _('change working directory')),
     ('y', 'noninteractive', None,
      _('do not prompt, assume \'yes\' for any required answers')),
     ('q', 'quiet', None, _('suppress output')),
     ('v', 'verbose', None, _('enable additional output')),
     ('', 'config', [], _('set/override config option')),
     ('', 'debug', None, _('enable debugging output')),
     ('', 'debugger', None, _('start debugger')),
     ('', 'encoding', util._encoding, _('set the charset encoding')),
     ('', 'encodingmode', util._encodingmode, _('set the charset encoding mode')),
     ('', 'lsprof', None, _('print improved command execution profile')),
     ('', 'traceback', None, _('print traceback on exception')),
     ('', 'time', None, _('time how long the command takes')),
     ('', 'profile', None, _('print command execution profile')),
     ('', 'version', None, _('output version information and exit')),
     ('h', 'help', None, _('display help and exit')),
 ]
 
 dryrunopts = [('n', 'dry-run', None,
                _('do not perform actions, just print output'))]
 
 remoteopts = [
     ('e', 'ssh', '', _('specify ssh command to use')),
     ('', 'remotecmd', '', _('specify hg command to run on the remote side')),
 ]
 
 walkopts = [
     ('I', 'include', [], _('include names matching the given patterns')),
     ('X', 'exclude', [], _('exclude names matching the given patterns')),
 ]
 
 commitopts = [
     ('m', 'message', '', _('use <text> as commit message')),
     ('l', 'logfile', '', _('read commit message from <file>')),
 ]
 
 commitopts2 = [
     ('d', 'date', '', _('record datecode as commit date')),
     ('u', 'user', '', _('record user as committer')),
 ]
 
 templateopts = [
     ('', 'style', '', _('display using template map file')),
     ('', 'template', '', _('display with template')),
 ]
 
 logopts = [
     ('p', 'patch', None, _('show patch')),
     ('l', 'limit', '', _('limit number of changes displayed')),
     ('M', 'no-merges', None, _('do not show merges')),
 ] + templateopts
 
 diffopts = [
     ('a', 'text', None, _('treat all files as text')),
     ('g', 'git', None, _('use git extended diff format')),
     ('', 'nodates', None, _("don't include dates in diff headers"))
 ]
 
 diffopts2 = [
     ('p', 'show-function', None, _('show which function each change is in')),
     ('w', 'ignore-all-space', None,
      _('ignore white space when comparing lines')),
     ('b', 'ignore-space-change', None,
      _('ignore changes in the amount of white space')),
     ('B', 'ignore-blank-lines', None,
      _('ignore changes whose lines are all blank')),
     ('U', 'unified', '', _('number of lines of context to show'))
 ]
 
 table = {
     "^add": (add, walkopts + dryrunopts, _('hg add [OPTION]... [FILE]...')),
     "addremove":
         (addremove,
          [('s', 'similarity', '',
            _('guess renamed files by similarity (0<=s<=100)')),
          ] + walkopts + dryrunopts,
          _('hg addremove [OPTION]... [FILE]...')),
     "^annotate|blame":
         (annotate,
          [('r', 'rev', '', _('annotate the specified revision')),
           ('f', 'follow', None, _('follow file copies and renames')),
           ('a', 'text', None, _('treat all files as text')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('d', 'date', None, _('list the date (short with -q)')),
           ('n', 'number', None, _('list the revision number (default)')),
           ('c', 'changeset', None, _('list the changeset')),
           ('l', 'line-number', None,
            _('show line number at the first appearance'))
          ] + walkopts,
          _('hg annotate [-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...')),
     "archive":
         (archive,
          [('', 'no-decode', None, _('do not pass files through decoders')),
           ('p', 'prefix', '', _('directory prefix for files in archive')),
           ('r', 'rev', '', _('revision to distribute')),
           ('t', 'type', '', _('type of distribution to create')),
          ] + walkopts,
          _('hg archive [OPTION]... DEST')),
     "backout":
         (backout,
          [('', 'merge', None,
            _('merge with old dirstate parent after backout')),
           ('', 'parent', '', _('parent to choose when backing out merge')),
           ('r', 'rev', '', _('revision to backout')),
          ] + walkopts + commitopts + commitopts2,
          _('hg backout [OPTION]... [-r] REV')),
     "bisect":
         (bisect,
          [('r', 'reset', False, _('reset bisect state')),
           ('g', 'good', False, _('mark changeset good')),
           ('b', 'bad', False, _('mark changeset bad')),
           ('s', 'skip', False, _('skip testing changeset')),
           ('U', 'noupdate', False, _('do not update to target'))],
          _("hg bisect [-gbsr] [REV]")),
     "branch":
         (branch,
          [('f', 'force', None,
            _('set branch name even if it shadows an existing branch'))],
          _('hg branch [-f] [NAME]')),
     "branches":
         (branches,
          [('a', 'active', False,
            _('show only branches that have unmerged heads'))],
          _('hg branches [-a]')),
     "bundle":
         (bundle,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a changeset up to which you would like to bundle')),
           ('', 'base', [],
            _('a base changeset to specify instead of a destination')),
           ('a', 'all', None, _('bundle all changesets in the repository')),
           ('t', 'type', 'bzip2', _('bundle compression type to use')),
          ] + remoteopts,
          _('hg bundle [-f] [-a] [-r REV]... [--base REV]... FILE [DEST]')),
     "cat":
         (cat,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('r', 'rev', '', _('print the given revision')),
           ('', 'decode', None, _('apply any matching decode filter')),
          ] + walkopts,
          _('hg cat [OPTION]... FILE...')),
     "^clone":
         (clone,
          [('U', 'noupdate', None,
           _('the clone will only contain a repository (no working copy)')),
           ('r', 'rev', [],
            _('a changeset you would like to have after cloning')),
           ('', 'pull', None, _('use pull protocol to copy metadata')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
          ] + remoteopts,
          _('hg clone [OPTION]... SOURCE [DEST]')),
     "^commit|ci":
         (commit,
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before committing')),
          ] + walkopts + commitopts + commitopts2,
          _('hg commit [OPTION]... [FILE]...')),
     "copy|cp":
         (copy,
          [('A', 'after', None, _('record a copy that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg copy [OPTION]... [SOURCE]... DEST')),
     "debugancestor": (debugancestor, [],
                       _('hg debugancestor [INDEX] REV1 REV2')),
     "debugcheckstate": (debugcheckstate, [], _('hg debugcheckstate')),
     "debugcomplete":
         (debugcomplete,
          [('o', 'options', None, _('show the command options'))],
          _('hg debugcomplete [-o] CMD')),
     "debugdate":
         (debugdate,
          [('e', 'extended', None, _('try extended date formats'))],
          _('hg debugdate [-e] DATE [RANGE]')),
     "debugdata": (debugdata, [], _('hg debugdata FILE REV')),
     "debugfsinfo": (debugfsinfo, [], _('hg debugfsinfo [PATH]')),
     "debugindex": (debugindex, [], _('hg debugindex FILE')),
     "debugindexdot": (debugindexdot, [], _('hg debugindexdot FILE')),
     "debuginstall": (debuginstall, [], _('hg debuginstall')),
     "debugrawcommit|rawcommit":
         (rawcommit,
          [('p', 'parent', [], _('parent')),
           ('F', 'files', '', _('file list'))
           ] + commitopts + commitopts2,
          _('hg debugrawcommit [OPTION]... [FILE]...')),
     "debugrebuildstate":
         (debugrebuildstate,
          [('r', 'rev', '', _('revision to rebuild to'))],
          _('hg debugrebuildstate [-r REV] [REV]')),
     "debugrename":
         (debugrename,
          [('r', 'rev', '', _('revision to debug'))],
          _('hg debugrename [-r REV] FILE')),
     "debugsetparents":
         (debugsetparents,
          [],
          _('hg debugsetparents REV1 [REV2]')),
     "debugstate":
         (debugstate,
          [('', 'nodates', None, _('do not display the saved mtime'))],
          _('hg debugstate [OPTS]')),
     "debugwalk": (debugwalk, walkopts, _('hg debugwalk [OPTION]... [FILE]...')),
     "^diff":
         (diff,
          [('r', 'rev', [], _('revision'))
          ] + diffopts + diffopts2 + walkopts,
          _('hg diff [OPTION]... [-r REV1 [-r REV2]] [FILE]...')),
     "^export":
         (export,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('', 'switch-parent', None, _('diff against the second parent'))
           ] + diffopts,
          _('hg export [OPTION]... [-o OUTFILESPEC] REV...')),
     "grep":
         (grep,
          [('0', 'print0', None, _('end fields with NUL')),
           ('', 'all', None, _('print all revisions that match')),
           ('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('i', 'ignore-case', None, _('ignore case when matching')),
           ('l', 'files-with-matches', None,
            _('print only filenames and revs that match')),
           ('n', 'line-number', None, _('print matching line numbers')),
           ('r', 'rev', [], _('search in given revision range')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('d', 'date', None, _('list the date (short with -q)')),
          ] + walkopts,
          _('hg grep [OPTION]... PATTERN [FILE]...')),
     "heads":
         (heads,
          [('r', 'rev', '', _('show only heads which are descendants of rev')),
          ] + templateopts,
          _('hg heads [-r REV] [REV]...')),
     "help": (help_, [], _('hg help [COMMAND]')),
     "identify|id":
         (identify,
          [('r', 'rev', '', _('identify the specified rev')),
           ('n', 'num', None, _('show local revision number')),
           ('i', 'id', None, _('show global revision id')),
           ('b', 'branch', None, _('show branch')),
           ('t', 'tags', None, _('show tags'))],
          _('hg identify [-nibt] [-r REV] [SOURCE]')),
     "import|patch":
         (import_,
          [('p', 'strip', 1,
            _('directory strip option for patch. This has the same\n'
              'meaning as the corresponding patch option')),
           ('b', 'base', '', _('base path')),
           ('f', 'force', None,
            _('skip check for outstanding uncommitted changes')),
           ('', 'no-commit', None, _("don't commit, just update the working directory")),
           ('', 'exact', None,
            _('apply patch to the nodes from which it was generated')),
           ('', 'import-branch', None,
            _('Use any branch information in patch (implied by --exact)'))] +
          commitopts + commitopts2,
          _('hg import [OPTION]... PATCH...')),
     "incoming|in":
         (incoming,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'bundle', '', _('file to store the bundles into')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to pull')),
          ] + logopts + remoteopts,
          _('hg incoming [-p] [-n] [-M] [-f] [-r REV]...'
            ' [--bundle FILENAME] [SOURCE]')),
     "^init":
         (init,
          remoteopts,
          _('hg init [-e CMD] [--remotecmd CMD] [DEST]')),
     "locate":
         (locate,
          [('r', 'rev', '', _('search the repository as it stood at rev')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('f', 'fullpath', None,
            _('print complete paths from the filesystem root')),
          ] + walkopts,
          _('hg locate [OPTION]... [PATTERN]...')),
     "^log|history":
         (log,
          [('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('', 'follow-first', None,
            _('only follow the first parent of merge changesets')),
           ('d', 'date', '', _('show revs matching date spec')),
           ('C', 'copies', None, _('show copied files')),
           ('k', 'keyword', [], _('do case-insensitive search for a keyword')),
           ('r', 'rev', [], _('show the specified revision or range')),
           ('', 'removed', None, _('include revs where files were removed')),
           ('m', 'only-merges', None, _('show only merges')),
           ('b', 'only-branch', [],
             _('show only changesets within the given named branch')),
           ('P', 'prune', [], _('do not display revision or any of its ancestors')),
          ] + logopts + walkopts,
          _('hg log [OPTION]... [FILE]')),
     "manifest":
         (manifest,
          [('r', 'rev', '', _('revision to display'))],
          _('hg manifest [-r REV]')),
     "^merge":
         (merge,
          [('f', 'force', None, _('force a merge with outstanding changes')),
           ('r', 'rev', '', _('revision to merge')),
              ],
          _('hg merge [-f] [[-r] REV]')),
     "outgoing|out":
         (outgoing,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to push')),
           ('n', 'newest-first', None, _('show newest record first')),
          ] + logopts + remoteopts,
          _('hg outgoing [-M] [-p] [-n] [-f] [-r REV]... [DEST]')),
     "^parents":
         (parents,
          [('r', 'rev', '', _('show parents from the specified rev')),
          ] + templateopts,
          _('hg parents [-r REV] [FILE]')),
     "paths": (paths, [], _('hg paths [NAME]')),
     "^pull":
         (pull,
          [('u', 'update', None,
            _('update to new tip if changesets were pulled')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to pull')),
          ] + remoteopts,
          _('hg pull [-u] [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [SOURCE]')),
     "^push":
         (push,
          [('f', 'force', None, _('force push')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to push')),
          ] + remoteopts,
          _('hg push [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]')),
     "recover": (recover, [], _('hg recover')),
     "^remove|rm":
         (remove,
          [('A', 'after', None, _('record delete for missing files')),
           ('f', 'force', None,
            _('remove (and delete) file even if added or modified')),
          ] + walkopts,
          _('hg remove [OPTION]... FILE...')),
     "rename|mv":
         (rename,
          [('A', 'after', None, _('record a rename that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg rename [OPTION]... SOURCE... DEST')),
     "resolve":
         (resolve,
          [('l', 'list', None, _('list state of files needing merge')),
           ('m', 'mark', None, _('mark files as resolved')),
           ('u', 'unmark', None, _('unmark files as resolved'))],
           ('hg resolve [OPTION] [FILES...]')),
     "revert":
         (revert,
          [('a', 'all', None, _('revert all changes when no arguments given')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision to revert to')),
           ('', 'no-backup', None, _('do not save backup copies of files')),
          ] + walkopts + dryrunopts,
          _('hg revert [OPTION]... [-r REV] [NAME]...')),
     "rollback": (rollback, [], _('hg rollback')),
     "root": (root, [], _('hg root')),
     "^serve":
         (serve,
          [('A', 'accesslog', '', _('name of access log file to write to')),
           ('d', 'daemon', None, _('run server in background')),
           ('', 'daemon-pipefds', '', _('used internally by daemon mode')),
           ('E', 'errorlog', '', _('name of error log file to write to')),
           ('p', 'port', 0, _('port to listen on (default: 8000)')),
           ('a', 'address', '', _('address to listen on (default: all interfaces)')),
           ('', 'prefix', '', _('prefix path to serve from (default: server root)')),
           ('n', 'name', '',
            _('name to show in web pages (default: working dir)')),
           ('', 'webdir-conf', '', _('name of the webdir config file'
                                     ' (serve more than one repo)')),
           ('', 'pid-file', '', _('name of file to write process ID to')),
           ('', 'stdio', None, _('for remote clients')),
           ('t', 'templates', '', _('web templates to use')),
           ('', 'style', '', _('template style to use')),
           ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
           ('', 'certificate', '', _('SSL certificate file'))],
          _('hg serve [OPTION]...')),
     "showconfig|debugconfig":
         (showconfig,
          [('u', 'untrusted', None, _('show untrusted configuration options'))],
          _('hg showconfig [-u] [NAME]...')),
     "^status|st":
         (status,
          [('A', 'all', None, _('show status of all files')),
           ('m', 'modified', None, _('show only modified files')),
           ('a', 'added', None, _('show only added files')),
           ('r', 'removed', None, _('show only removed files')),
           ('d', 'deleted', None, _('show only deleted (but tracked) files')),
           ('c', 'clean', None, _('show only files without changes')),
           ('u', 'unknown', None, _('show only unknown (not tracked) files')),
           ('i', 'ignored', None, _('show only ignored files')),
           ('n', 'no-status', None, _('hide status prefix')),
           ('C', 'copies', None, _('show source of copied files')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('', 'rev', [], _('show difference from revision')),
          ] + walkopts,
          _('hg status [OPTION]... [FILE]...')),
     "tag":
         (tag,
          [('f', 'force', None, _('replace existing tag')),
           ('l', 'local', None, _('make the tag local')),
           ('r', 'rev', '', _('revision to tag')),
           ('', 'remove', None, _('remove a tag')),
           # -l/--local is already there, commitopts cannot be used
           ('m', 'message', '', _('use <text> as commit message')),
          ] + commitopts2,
          _('hg tag [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME...')),
     "tags": (tags, [], _('hg tags')),
     "tip":
         (tip,
          [('p', 'patch', None, _('show patch')),
          ] + templateopts,
          _('hg tip [-p]')),
     "unbundle":
         (unbundle,
          [('u', 'update', None,
            _('update to new tip if changesets were unbundled'))],
          _('hg unbundle [-u] FILE...')),
     "^update|up|checkout|co":
         (update,
          [('C', 'clean', None, _('overwrite locally modified files (no backup)')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision'))],
          _('hg update [-C] [-d DATE] [[-r] REV]')),
     "verify": (verify, [], _('hg verify')),
     "version": (version_, [], _('hg version')),
 }
 
 norepo = ("clone init version help debugcomplete debugdata"
           " debugindex debugindexdot debugdate debuginstall debugfsinfo")
 optionalrepo = ("identify paths serve showconfig debugancestor")

mercurial/context.py

@@ -1,751 +1,751 b''
 # context.py - changeset and file context objects for mercurial
 #
 # Copyright 2006, 2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import nullid, nullrev, short
 from i18n import _
 import ancestor, bdiff, revlog, util, os, errno
 
 class changectx(object):
     """A changecontext object makes access to data related to a particular
     changeset convenient."""
     def __init__(self, repo, changeid=''):
         """changeid is a revision number, node, or tag"""
         if changeid == '':
             changeid = '.'
         self._repo = repo
         self._node = self._repo.lookup(changeid)
         self._rev = self._repo.changelog.rev(self._node)
 
     def __str__(self):
         return short(self.node())
 
     def __repr__(self):
         return "<changectx %s>" % str(self)
 
     def __hash__(self):
         try:
             return hash(self._rev)
         except AttributeError:
             return id(self)
 
     def __eq__(self, other):
         try:
             return self._rev == other._rev
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def __nonzero__(self):
         return self._rev != nullrev
 
     def __getattr__(self, name):
         if name == '_changeset':
             self._changeset = self._repo.changelog.read(self.node())
             return self._changeset
         elif name == '_manifest':
             self._manifest = self._repo.manifest.read(self._changeset[0])
             return self._manifest
         elif name == '_manifestdelta':
             md = self._repo.manifest.readdelta(self._changeset[0])
             self._manifestdelta = md
             return self._manifestdelta
         elif name == '_parents':
             p = self._repo.changelog.parents(self._node)
             if p[1] == nullid:
                 p = p[:-1]
             self._parents = [changectx(self._repo, x) for x in p]
             return self._parents
         else:
             raise AttributeError, name
 
     def __contains__(self, key):
         return key in self._manifest
 
     def __getitem__(self, key):
         return self.filectx(key)
 
     def __iter__(self):
         a = self._manifest.keys()
         a.sort()
         for f in a:
             yield f
 
     def changeset(self): return self._changeset
     def manifest(self): return self._manifest
 
     def rev(self): return self._rev
     def node(self): return self._node
     def user(self): return self._changeset[1]
     def date(self): return self._changeset[2]
     def files(self): return self._changeset[3]
     def description(self): return self._changeset[4]
     def branch(self): return self._changeset[5].get("branch")
     def extra(self): return self._changeset[5]
     def tags(self): return self._repo.nodetags(self._node)
 
     def parents(self):
         """return contexts for each parent changeset"""
         return self._parents
 
     def children(self):
         """return contexts for each child changeset"""
         c = self._repo.changelog.children(self._node)
         return [changectx(self._repo, x) for x in c]
 
     def _fileinfo(self, path):
         if '_manifest' in self.__dict__:
             try:
                 return self._manifest[path], self._manifest.flags(path)
             except KeyError:
                 raise revlog.LookupError(self._node, path,
                                          _('not found in manifest'))
         if '_manifestdelta' in self.__dict__ or path in self.files():
             if path in self._manifestdelta:
                 return self._manifestdelta[path], self._manifestdelta.flags(path)
         node, flag = self._repo.manifest.find(self._changeset[0], path)
         if not node:
             raise revlog.LookupError(self._node, path,
                                      _('not found in manifest'))
 
         return node, flag
 
     def filenode(self, path):
         return self._fileinfo(path)[0]
 
     def flags(self, path):
         try:
             return self._fileinfo(path)[1]
         except revlog.LookupError:
             return ''
 
     def filectx(self, path, fileid=None, filelog=None):
         """get a file context from this changeset"""
         if fileid is None:
             fileid = self.filenode(path)
         return filectx(self._repo, path, fileid=fileid,
                        changectx=self, filelog=filelog)
 
     def filectxs(self):
         """generate a file context for each file in this changeset's
            manifest"""
         mf = self.manifest()
         m = mf.keys()
         m.sort()
         for f in m:
             yield self.filectx(f, fileid=mf[f])
 
     def ancestor(self, c2):
         """
         return the ancestor context of self and c2
         """
         n = self._repo.changelog.ancestor(self._node, c2._node)
         return changectx(self._repo, n)
 
 class filectx(object):
     """A filecontext object makes access to data related to a particular
        filerevision convenient."""
     def __init__(self, repo, path, changeid=None, fileid=None,
                  filelog=None, changectx=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         self._repo = repo
         self._path = path
 
         assert (changeid is not None
                 or fileid is not None
                 or changectx is not None)
 
         if filelog:
             self._filelog = filelog
 
         if changeid is not None:
             self._changeid = changeid
         if changectx is not None:
             self._changectx = changectx
         if fileid is not None:
             self._fileid = fileid
 
     def __getattr__(self, name):
         if name == '_changectx':
             self._changectx = changectx(self._repo, self._changeid)
             return self._changectx
         elif name == '_filelog':
             self._filelog = self._repo.file(self._path)
             return self._filelog
         elif name == '_changeid':
             if '_changectx' in self.__dict__:
                 self._changeid = self._changectx.rev()
             else:
                 self._changeid = self._filelog.linkrev(self._filenode)
             return self._changeid
         elif name == '_filenode':
             if '_fileid' in self.__dict__:
                 self._filenode = self._filelog.lookup(self._fileid)
             else:
                 self._filenode = self._changectx.filenode(self._path)
             return self._filenode
         elif name == '_filerev':
             self._filerev = self._filelog.rev(self._filenode)
             return self._filerev
         elif name == '_repopath':
             self._repopath = self._path
             return self._repopath
         else:
             raise AttributeError, name
 
     def __nonzero__(self):
         try:
             n = self._filenode
             return True
         except revlog.LookupError:
             # file is missing
             return False
 
     def __str__(self):
         return "%s@%s" % (self.path(), short(self.node()))
 
     def __repr__(self):
         return "<filectx %s>" % str(self)
 
     def __hash__(self):
         try:
             return hash((self._path, self._fileid))
         except AttributeError:
             return id(self)
 
     def __eq__(self, other):
         try:
             return (self._path == other._path
                     and self._fileid == other._fileid)
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def filectx(self, fileid):
         '''opens an arbitrary revision of the file without
         opening a new filelog'''
         return filectx(self._repo, self._path, fileid=fileid,
                        filelog=self._filelog)
 
     def filerev(self): return self._filerev
     def filenode(self): return self._filenode
     def flags(self): return self._changectx.flags(self._path)
     def filelog(self): return self._filelog
 
     def rev(self):
         if '_changectx' in self.__dict__:
             return self._changectx.rev()
         if '_changeid' in self.__dict__:
             return self._changectx.rev()
         return self._filelog.linkrev(self._filenode)
 
     def linkrev(self): return self._filelog.linkrev(self._filenode)
     def node(self): return self._changectx.node()
     def user(self): return self._changectx.user()
     def date(self): return self._changectx.date()
     def files(self): return self._changectx.files()
     def description(self): return self._changectx.description()
     def branch(self): return self._changectx.branch()
     def manifest(self): return self._changectx.manifest()
     def changectx(self): return self._changectx
 
     def data(self): return self._filelog.read(self._filenode)
     def path(self): return self._path
     def size(self): return self._filelog.size(self._filerev)
 
     def cmp(self, text): return self._filelog.cmp(self._filenode, text)
 
     def renamed(self):
         """check if file was actually renamed in this changeset revision
 
         If rename logged in file revision, we report copy for changeset only
         if file revisions linkrev points back to the changeset in question
         or both changeset parents contain different file revisions.
         """
 
         renamed = self._filelog.renamed(self._filenode)
         if not renamed:
             return renamed
 
         if self.rev() == self.linkrev():
             return renamed
 
         name = self.path()
         fnode = self._filenode
         for p in self._changectx.parents():
             try:
                 if fnode == p.filenode(name):
                     return None
             except revlog.LookupError:
                 pass
         return renamed
 
     def parents(self):
         p = self._path
         fl = self._filelog
         pl = [(p, n, fl) for n in self._filelog.parents(self._filenode)]
 
         r = self._filelog.renamed(self._filenode)
         if r:
             pl[0] = (r[0], r[1], None)
 
         return [filectx(self._repo, p, fileid=n, filelog=l)
                 for p,n,l in pl if n != nullid]
 
     def children(self):
         # hard for renames
         c = self._filelog.children(self._filenode)
         return [filectx(self._repo, self._path, fileid=x,
                         filelog=self._filelog) for x in c]
 
     def annotate(self, follow=False, linenumber=None):
         '''returns a list of tuples of (ctx, line) for each line
         in the file, where ctx is the filectx of the node where
         that line was last changed.
         This returns tuples of ((ctx, linenumber), line) for each line,
         if "linenumber" parameter is NOT "None".
         In such tuples, linenumber means one at the first appearance
         in the managed file.
         To reduce annotation cost,
         this returns fixed value(False is used) as linenumber,
         if "linenumber" parameter is "False".'''
 
         def decorate_compat(text, rev):
             return ([rev] * len(text.splitlines()), text)
 
         def without_linenumber(text, rev):
             return ([(rev, False)] * len(text.splitlines()), text)
 
         def with_linenumber(text, rev):
             size = len(text.splitlines())
             return ([(rev, i) for i in xrange(1, size + 1)], text)
 
         decorate = (((linenumber is None) and decorate_compat) or
                     (linenumber and with_linenumber) or
                     without_linenumber)
 
         def pair(parent, child):
             for a1, a2, b1, b2 in bdiff.blocks(parent[1], child[1]):
                 child[0][b1:b2] = parent[0][a1:a2]
             return child
 
         getlog = util.cachefunc(lambda x: self._repo.file(x))
         def getctx(path, fileid):
             log = path == self._path and self._filelog or getlog(path)
             return filectx(self._repo, path, fileid=fileid, filelog=log)
         getctx = util.cachefunc(getctx)
 
         def parents(f):
             # we want to reuse filectx objects as much as possible
             p = f._path
             if f._filerev is None: # working dir
                 pl = [(n.path(), n.filerev()) for n in f.parents()]
             else:
                 pl = [(p, n) for n in f._filelog.parentrevs(f._filerev)]
 
             if follow:
                 r = f.renamed()
                 if r:
                     pl[0] = (r[0], getlog(r[0]).rev(r[1]))
 
             return [getctx(p, n) for p, n in pl if n != nullrev]
 
         # use linkrev to find the first changeset where self appeared
         if self.rev() != self.linkrev():
             base = self.filectx(self.filerev())
         else:
             base = self
 
         # find all ancestors
         needed = {base: 1}
         visit = [base]
         files = [base._path]
         while visit:
             f = visit.pop(0)
             for p in parents(f):
                 if p not in needed:
                     needed[p] = 1
                     visit.append(p)
                     if p._path not in files:
                         files.append(p._path)
                 else:
                     # count how many times we'll use this
                     needed[p] += 1
 
         # sort by revision (per file) which is a topological order
         visit = []
         for f in files:
             fn = [(n.rev(), n) for n in needed.keys() if n._path == f]
             visit.extend(fn)
         visit.sort()
         hist = {}
 
         for r, f in visit:
             curr = decorate(f.data(), f)
             for p in parents(f):
                 if p != nullid:
                     curr = pair(hist[p], curr)
                     # trim the history of unneeded revs
                     needed[p] -= 1
                     if not needed[p]:
                         del hist[p]
             hist[f] = curr
 
         return zip(hist[f][0], hist[f][1].splitlines(1))
 
     def ancestor(self, fc2):
         """
         find the common ancestor file context, if any, of self, and fc2
         """
 
         acache = {}
 
         # prime the ancestor cache for the working directory
         for c in (self, fc2):
             if c._filerev == None:
                 pl = [(n.path(), n.filenode()) for n in c.parents()]
                 acache[(c._path, None)] = pl
 
         flcache = {self._repopath:self._filelog, fc2._repopath:fc2._filelog}
         def parents(vertex):
             if vertex in acache:
                 return acache[vertex]
             f, n = vertex
             if f not in flcache:
                 flcache[f] = self._repo.file(f)
             fl = flcache[f]
             pl = [(f, p) for p in fl.parents(n) if p != nullid]
             re = fl.renamed(n)
             if re:
                 pl.append(re)
             acache[vertex] = pl
             return pl
 
         a, b = (self._path, self._filenode), (fc2._path, fc2._filenode)
         v = ancestor.ancestor(a, b, parents)
         if v:
             f, n = v
             return filectx(self._repo, f, fileid=n, filelog=flcache[f])
 
         return None
 
 class workingctx(changectx):
     """A workingctx object makes access to data related to
     the current working directory convenient.
     parents - a pair of parent nodeids, or None to use the dirstate.
     date - any valid date string or (unixtime, offset), or None.
     user - username string, or None.
     extra - a dictionary of extra values, or None.
     changes - a list of file lists as returned by localrepo.status()
                or None to use the repository status.
     """
     def __init__(self, repo, parents=None, text="", user=None, date=None,
                  extra=None, changes=None):
         self._repo = repo
         self._rev = None
         self._node = None
         self._text = text
         if date:
             self._date = util.parsedate(date)
         else:
             self._date = util.makedate()
         if user:
             self._user = user
         else:
             self._user = self._repo.ui.username()
         if parents:
             p1, p2 = parents
-            self._parents = [self._repo.changectx(p) for p in (p1, p2)]
+            self._parents = [changectx(self._repo, p) for p in (p1, p2)]
         if changes:
             self._status = list(changes)
 
         self._extra = {}
         if extra:
             self._extra = extra.copy()
         if 'branch' not in self._extra:
             branch = self._repo.dirstate.branch()
             try:
                 branch = branch.decode('UTF-8').encode('UTF-8')
             except UnicodeDecodeError:
                 raise util.Abort(_('branch name not in UTF-8!'))
             self._extra['branch'] = branch
         if self._extra['branch'] == '':
             self._extra['branch'] = 'default'
 
     def __str__(self):
         return str(self._parents[0]) + "+"
 
     def __nonzero__(self):
         return True
 
     def __getattr__(self, name):
         if name == '_status':
             self._status = self._repo.status()
             return self._status
         if name == '_manifest':
             self._buildmanifest()
             return self._manifest
         elif name == '_parents':
             p = self._repo.dirstate.parents()
             if p[1] == nullid:
                 p = p[:-1]
             self._parents = [changectx(self._repo, x) for x in p]
             return self._parents
         else:
             raise AttributeError, name
 
     def _buildmanifest(self):
         """generate a manifest corresponding to the working directory"""
 
         man = self._parents[0].manifest().copy()
         copied = self._repo.dirstate.copies()
         cf = lambda x: man.flags(copied.get(x, x))
         ff = self._repo.dirstate.flagfunc(cf)
         modified, added, removed, deleted, unknown = self._status[:5]
         for i, l in (("a", added), ("m", modified), ("u", unknown)):
             for f in l:
                 man[f] = man.get(copied.get(f, f), nullid) + i
                 try:
                     man.set(f, ff(f))
                 except OSError:
                     pass
 
         for f in deleted + removed:
             if f in man:
                 del man[f]
 
         self._manifest = man
 
     def manifest(self): return self._manifest
 
     def user(self): return self._user
     def date(self): return self._date
     def description(self): return self._text
     def files(self):
         f = self.modified() + self.added() + self.removed()
         f.sort()
         return f
 
     def modified(self): return self._status[0]
     def added(self): return self._status[1]
     def removed(self): return self._status[2]
     def deleted(self): return self._status[3]
     def unknown(self): return self._status[4]
     def clean(self): return self._status[5]
     def branch(self): return self._extra['branch']
     def extra(self): return self._extra
 
     def tags(self):
         t = []
         [t.extend(p.tags()) for p in self.parents()]
         return t
 
     def children(self):
         return []
 
     def flags(self, path):
         if '_manifest' in self.__dict__:
             try:
                 return self._manifest.flags(path)
             except KeyError:
                 return ''
 
         pnode = self._parents[0].changeset()[0]
         orig = self._repo.dirstate.copies().get(path, path)
         node, flag = self._repo.manifest.find(pnode, orig)
         try:
             ff = self._repo.dirstate.flagfunc(lambda x: flag or '')
             return ff(path)
         except OSError:
             pass
 
         if not node or path in self.deleted() or path in self.removed():
             return ''
         return flag
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory"""
         return workingfilectx(self._repo, path, workingctx=self,
                               filelog=filelog)
 
     def ancestor(self, c2):
         """return the ancestor context of self and c2"""
         return self._parents[0].ancestor(c2) # punt on two parents for now
 
 class workingfilectx(filectx):
     """A workingfilectx object makes access to data related to a particular
        file in the working directory convenient."""
     def __init__(self, repo, path, filelog=None, workingctx=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         self._repo = repo
         self._path = path
         self._changeid = None
         self._filerev = self._filenode = None
 
         if filelog:
             self._filelog = filelog
         if workingctx:
             self._changectx = workingctx
 
     def __getattr__(self, name):
         if name == '_changectx':
             self._changectx = workingctx(self._repo)
             return self._changectx
         elif name == '_repopath':
             self._repopath = (self._repo.dirstate.copied(self._path)
                               or self._path)
             return self._repopath
         elif name == '_filelog':
             self._filelog = self._repo.file(self._repopath)
             return self._filelog
         else:
             raise AttributeError, name
 
     def __nonzero__(self):
         return True
 
     def __str__(self):
         return "%s@%s" % (self.path(), self._changectx)
 
     def filectx(self, fileid):
         '''opens an arbitrary revision of the file without
         opening a new filelog'''
         return filectx(self._repo, self._repopath, fileid=fileid,
                        filelog=self._filelog)
 
     def rev(self):
         if '_changectx' in self.__dict__:
             return self._changectx.rev()
         return self._filelog.linkrev(self._filenode)
 
     def data(self): return self._repo.wread(self._path)
     def renamed(self):
         rp = self._repopath
         if rp == self._path:
             return None
         return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
 
     def parents(self):
         '''return parent filectxs, following copies if necessary'''
         p = self._path
         rp = self._repopath
         pcl = self._changectx._parents
         fl = self._filelog
         pl = [(rp, pcl[0]._manifest.get(rp, nullid), fl)]
         if len(pcl) > 1:
             if rp != p:
                 fl = None
             pl.append((p, pcl[1]._manifest.get(p, nullid), fl))
 
         return [filectx(self._repo, p, fileid=n, filelog=l)
                 for p,n,l in pl if n != nullid]
 
     def children(self):
         return []
 
     def size(self): return os.stat(self._repo.wjoin(self._path)).st_size
     def date(self):
         t, tz = self._changectx.date()
         try:
             return (int(os.lstat(self._repo.wjoin(self._path)).st_mtime), tz)
         except OSError, err:
             if err.errno != errno.ENOENT: raise
             return (t, tz)
 
     def cmp(self, text): return self._repo.wread(self._path) == text
 
 class memctx(object):
     """A memctx is a subset of changectx supposed to be built on memory
     and passed to commit functions.
 
     NOTE: this interface and the related memfilectx are experimental and
     may change without notice.
 
     parents - a pair of parent nodeids.
     filectxfn - a callable taking (repo, memctx, path) arguments and
     returning a memctx object.
     date - any valid date string or (unixtime, offset), or None.
     user - username string, or None.
     extra - a dictionary of extra values, or None.
     """
     def __init__(self, repo, parents, text, files, filectxfn, user=None,
                  date=None, extra=None):
         self._repo = repo
         self._rev = None
         self._node = None
         self._text = text
         self._date = date and util.parsedate(date) or util.makedate()
         self._user = user or self._repo.ui.username()
         parents = [(p or nullid) for p in parents]
         p1, p2 = parents
-        self._parents = [self._repo.changectx(p) for p in (p1, p2)]
+        self._parents = [changectx(self._repo, p) for p in (p1, p2)]
         files = list(files)
         files.sort()
         self._status = [files, [], [], [], []]
         self._filectxfn = filectxfn
 
         self._extra = extra and extra.copy() or {}
         if 'branch' not in self._extra:
             self._extra['branch'] = 'default'
         elif self._extra.get('branch') == '':
             self._extra['branch'] = 'default'
 
     def __str__(self):
         return str(self._parents[0]) + "+"
 
     def __nonzero__(self):
         return True
 
     def user(self): return self._user
     def date(self): return self._date
     def description(self): return self._text
     def files(self): return self.modified()
     def modified(self): return self._status[0]
     def added(self): return self._status[1]
     def removed(self): return self._status[2]
     def deleted(self): return self._status[3]
     def unknown(self): return self._status[4]
     def clean(self): return self._status[5]
     def branch(self): return self._extra['branch']
     def extra(self): return self._extra
     def flags(self, f): return self[f].flags()
 
     def parents(self):
         """return contexts for each parent changeset"""
         return self._parents
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory"""
         return self._filectxfn(self._repo, self, path)
 
 class memfilectx(object):
     """A memfilectx is a subset of filectx supposed to be built by client
     code and passed to commit functions.
     """
     def __init__(self, path, data, islink, isexec, copied):
         """copied is the source file path, or None."""
         self._path = path
         self._data = data
         self._flags = (islink and 'l' or '') + (isexec and 'x' or '')
         self._copied = None
         if copied:
             self._copied = (copied, nullid)
 
     def __nonzero__(self): return True
     def __str__(self): return "%s@%s" % (self.path(), self._changectx)
     def path(self): return self._path
     def data(self): return self._data
     def flags(self): return self._flags
     def isexec(self): return 'x' in self._flags
     def islink(self): return 'l' in self._flags
     def renamed(self): return self._copied
 

mercurial/graphmod.py

@@ -1,74 +1,74 b''
 # Revision graph generator for Mercurial
 #
 # Copyright 2008 Dirkjan Ochtman <[e-mail]>
 # Copyright 2007 Joel Rosdahl <[e-mail]>
 #
 # This software may be used and distributed according to the terms of
 # the GNU General Public License, incorporated herein by reference.
 
 from node import nullrev, short
 import ui, hg, util, templatefilters
 
 def graph(repo, start_rev, stop_rev):
     """incremental revision grapher
 
     This generator function walks through the revision history from
     revision start_rev to revision stop_rev (which must be less than
     or equal to start_rev) and for each revision emits tuples with the
     following elements:
 
       - Current node
       - Column and color for the current node
       - Edges; a list of (col, next_col, color) indicating the edges between
         the current node and its parents.
       - First line of the changeset description
       - The changeset author
       - The changeset date/time
     """
 
     assert start_rev >= stop_rev
     curr_rev = start_rev
     revs = []
     cl = repo.changelog
     colors = {}
     new_color = 1
 
     while curr_rev >= stop_rev:
         node = cl.node(curr_rev)
 
         # Compute revs and next_revs
         if curr_rev not in revs:
             revs.append(curr_rev) # new head
             colors[curr_rev] = new_color
             new_color += 1
 
         idx = revs.index(curr_rev)
         color = colors.pop(curr_rev)
         next = revs[:]
 
         # Add parents to next_revs
         parents = [x for x in cl.parentrevs(curr_rev) if x != nullrev]
         addparents = [p for p in parents if p not in next]
         next[idx:idx + 1] = addparents
 
         # Set colors for the parents
         for i, p in enumerate(addparents):
             if not i:
                 colors[p] = color
             else:
                 colors[p] = new_color
                 new_color += 1
 
         # Add edges to the graph
         edges = []
         for col, r in enumerate(revs):
             if r in next:
                 edges.append((col, next.index(r), colors[r]))
             elif r == curr_rev:
                 for p in parents:
                     edges.append((col, next.index(p), colors[p]))
 
         # Yield and move on
-        yield (repo.changectx(curr_rev), (idx, color), edges)
+        yield (repo[curr_rev], (idx, color), edges)
         revs = next
         curr_rev -= 1

mercurial/hgweb/hgweb_mod.py

@@ -1,379 +1,379 b''
 # hgweb/hgweb_mod.py - Web interface for a repository.
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 import os, mimetypes
 from mercurial.node import hex, nullid
 from mercurial.repo import RepoError
 from mercurial import mdiff, ui, hg, util, patch, hook
 from mercurial import revlog, templater, templatefilters, changegroup
 from common import get_mtime, style_map, paritygen, countgen, ErrorResponse
 from common import HTTP_OK, HTTP_BAD_REQUEST, HTTP_NOT_FOUND, HTTP_SERVER_ERROR
 from request import wsgirequest
 import webcommands, protocol, webutil
 
 shortcuts = {
     'cl': [('cmd', ['changelog']), ('rev', None)],
     'sl': [('cmd', ['shortlog']), ('rev', None)],
     'cs': [('cmd', ['changeset']), ('node', None)],
     'f': [('cmd', ['file']), ('filenode', None)],
     'fl': [('cmd', ['filelog']), ('filenode', None)],
     'fd': [('cmd', ['filediff']), ('node', None)],
     'fa': [('cmd', ['annotate']), ('filenode', None)],
     'mf': [('cmd', ['manifest']), ('manifest', None)],
     'ca': [('cmd', ['archive']), ('node', None)],
     'tags': [('cmd', ['tags'])],
     'tip': [('cmd', ['changeset']), ('node', ['tip'])],
     'static': [('cmd', ['static']), ('file', None)]
 }
 
 class hgweb(object):
     def __init__(self, repo, name=None):
         if isinstance(repo, str):
             parentui = ui.ui(report_untrusted=False, interactive=False)
             self.repo = hg.repository(parentui, repo)
         else:
             self.repo = repo
 
         hook.redirect(True)
         self.mtime = -1
         self.reponame = name
         self.archives = 'zip', 'gz', 'bz2'
         self.stripecount = 1
         self._capabilities = None
         # a repo owner may set web.templates in .hg/hgrc to get any file
         # readable by the user running the CGI script
         self.templatepath = self.config("web", "templates",
                                         templater.templatepath(),
                                         untrusted=False)
 
     # The CGI scripts are often run by a user different from the repo owner.
     # Trust the settings from the .hg/hgrc files by default.
     def config(self, section, name, default=None, untrusted=True):
         return self.repo.ui.config(section, name, default,
                                    untrusted=untrusted)
 
     def configbool(self, section, name, default=False, untrusted=True):
         return self.repo.ui.configbool(section, name, default,
                                        untrusted=untrusted)
 
     def configlist(self, section, name, default=None, untrusted=True):
         return self.repo.ui.configlist(section, name, default,
                                        untrusted=untrusted)
 
     def refresh(self):
         mtime = get_mtime(self.repo.root)
         if mtime != self.mtime:
             self.mtime = mtime
             self.repo = hg.repository(self.repo.ui, self.repo.root)
             self.maxchanges = int(self.config("web", "maxchanges", 10))
             self.stripecount = int(self.config("web", "stripes", 1))
             self.maxshortchanges = int(self.config("web", "maxshortchanges", 60))
             self.maxfiles = int(self.config("web", "maxfiles", 10))
             self.allowpull = self.configbool("web", "allowpull", True)
             self.encoding = self.config("web", "encoding", util._encoding)
             self._capabilities = None
 
     def capabilities(self):
         if self._capabilities is not None:
             return self._capabilities
         caps = ['lookup', 'changegroupsubset']
         if self.configbool('server', 'uncompressed'):
             caps.append('stream=%d' % self.repo.changelog.version)
         if changegroup.bundlepriority:
             caps.append('unbundle=%s' % ','.join(changegroup.bundlepriority))
         self._capabilities = caps
         return caps
 
     def run(self):
         if not os.environ.get('GATEWAY_INTERFACE', '').startswith("CGI/1."):
             raise RuntimeError("This function is only intended to be called while running as a CGI script.")
         import mercurial.hgweb.wsgicgi as wsgicgi
         wsgicgi.launch(self)
 
     def __call__(self, env, respond):
         req = wsgirequest(env, respond)
         self.run_wsgi(req)
         return req
 
     def run_wsgi(self, req):
 
         self.refresh()
 
         # expand form shortcuts
 
         for k in shortcuts.iterkeys():
             if k in req.form:
                 for name, value in shortcuts[k]:
                     if value is None:
                         value = req.form[k]
                     req.form[name] = value
                 del req.form[k]
 
         # work with CGI variables to create coherent structure
         # use SCRIPT_NAME, PATH_INFO and QUERY_STRING as well as our REPO_NAME
 
         req.url = req.env['SCRIPT_NAME']
         if not req.url.endswith('/'):
             req.url += '/'
         if 'REPO_NAME' in req.env:
             req.url += req.env['REPO_NAME'] + '/'
 
         if 'PATH_INFO' in req.env:
             parts = req.env['PATH_INFO'].strip('/').split('/')
             repo_parts = req.env.get('REPO_NAME', '').split('/')
             if parts[:len(repo_parts)] == repo_parts:
                 parts = parts[len(repo_parts):]
             query = '/'.join(parts)
         else:
             query = req.env['QUERY_STRING'].split('&', 1)[0]
             query = query.split(';', 1)[0]
 
         # translate user-visible url structure to internal structure
 
         args = query.split('/', 2)
         if 'cmd' not in req.form and args and args[0]:
 
             cmd = args.pop(0)
             style = cmd.rfind('-')
             if style != -1:
                 req.form['style'] = [cmd[:style]]
                 cmd = cmd[style+1:]
 
             # avoid accepting e.g. style parameter as command
             if hasattr(webcommands, cmd) or hasattr(protocol, cmd):
                 req.form['cmd'] = [cmd]
 
             if args and args[0]:
                 node = args.pop(0)
                 req.form['node'] = [node]
             if args:
                 req.form['file'] = args
 
             if cmd == 'static':
                 req.form['file'] = req.form['node']
             elif cmd == 'archive':
                 fn = req.form['node'][0]
                 for type_, spec in self.archive_specs.iteritems():
                     ext = spec[2]
                     if fn.endswith(ext):
                         req.form['node'] = [fn[:-len(ext)]]
                         req.form['type'] = [type_]
 
         # process this if it's a protocol request
 
         cmd = req.form.get('cmd', [''])[0]
         if cmd in protocol.__all__:
             method = getattr(protocol, cmd)
             method(self, req)
             return
 
         # process the web interface request
 
         try:
 
             tmpl = self.templater(req)
             ctype = tmpl('mimetype', encoding=self.encoding)
             ctype = templater.stringify(ctype)
 
             if cmd == '':
                 req.form['cmd'] = [tmpl.cache['default']]
                 cmd = req.form['cmd'][0]
 
             if cmd not in webcommands.__all__:
                 msg = 'no such method: %s' % cmd
                 raise ErrorResponse(HTTP_BAD_REQUEST, msg)
             elif cmd == 'file' and 'raw' in req.form.get('style', []):
                 self.ctype = ctype
                 content = webcommands.rawfile(self, req, tmpl)
             else:
                 content = getattr(webcommands, cmd)(self, req, tmpl)
                 req.respond(HTTP_OK, ctype)
 
             req.write(content)
             del tmpl
 
         except revlog.LookupError, err:
             req.respond(HTTP_NOT_FOUND, ctype)
             msg = str(err)
             if 'manifest' not in msg:
                 msg = 'revision not found: %s' % err.name
             req.write(tmpl('error', error=msg))
         except (RepoError, revlog.RevlogError), inst:
             req.respond(HTTP_SERVER_ERROR, ctype)
             req.write(tmpl('error', error=str(inst)))
         except ErrorResponse, inst:
             req.respond(inst.code, ctype)
             req.write(tmpl('error', error=inst.message))
 
     def templater(self, req):
 
         # determine scheme, port and server name
         # this is needed to create absolute urls
 
         proto = req.env.get('wsgi.url_scheme')
         if proto == 'https':
             proto = 'https'
             default_port = "443"
         else:
             proto = 'http'
             default_port = "80"
 
         port = req.env["SERVER_PORT"]
         port = port != default_port and (":" + port) or ""
         urlbase = '%s://%s%s' % (proto, req.env['SERVER_NAME'], port)
         staticurl = self.config("web", "staticurl") or req.url + 'static/'
         if not staticurl.endswith('/'):
             staticurl += '/'
 
         # some functions for the templater
 
         def header(**map):
             yield tmpl('header', encoding=self.encoding, **map)
 
         def footer(**map):
             yield tmpl("footer", **map)
 
         def motd(**map):
             yield self.config("web", "motd", "")
 
         def sessionvars(**map):
             fields = []
             if 'style' in req.form:
                 style = req.form['style'][0]
                 if style != self.config('web', 'style', ''):
                     fields.append(('style', style))
 
             separator = req.url[-1] == '?' and ';' or '?'
             for name, value in fields:
                 yield dict(name=name, value=value, separator=separator)
                 separator = ';'
 
         # figure out which style to use
 
         style = self.config("web", "style", "")
         if 'style' in req.form:
             style = req.form['style'][0]
         mapfile = style_map(self.templatepath, style)
 
         if not self.reponame:
             self.reponame = (self.config("web", "name")
                              or req.env.get('REPO_NAME')
                              or req.url.strip('/') or self.repo.root)
 
         # create the templater
 
         tmpl = templater.templater(mapfile, templatefilters.filters,
                                    defaults={"url": req.url,
                                              "staticurl": staticurl,
                                              "urlbase": urlbase,
                                              "repo": self.reponame,
                                              "header": header,
                                              "footer": footer,
                                              "motd": motd,
                                              "sessionvars": sessionvars
                                             })
         return tmpl
 
     def archivelist(self, nodeid):
         allowed = self.configlist("web", "allow_archive")
         for i, spec in self.archive_specs.iteritems():
             if i in allowed or self.configbool("web", "allow" + i):
                 yield {"type" : i, "extension" : spec[2], "node" : nodeid}
 
     def listfilediffs(self, tmpl, files, changeset):
         for f in files[:self.maxfiles]:
             yield tmpl("filedifflink", node=hex(changeset), file=f)
         if len(files) > self.maxfiles:
             yield tmpl("fileellipses")
 
     def diff(self, tmpl, node1, node2, files):
         def filterfiles(filters, files):
             l = [x for x in files if x in filters]
 
             for t in filters:
                 if t and t[-1] != os.sep:
                     t += os.sep
                 l += [x for x in files if x.startswith(t)]
             return l
 
         parity = paritygen(self.stripecount)
         def diffblock(diff, f, fn):
             yield tmpl("diffblock",
                        lines=prettyprintlines(diff),
                        parity=parity.next(),
                        file=f,
                        filenode=hex(fn or nullid))
 
         blockcount = countgen()
         def prettyprintlines(diff):
             blockno = blockcount.next()
             for lineno, l in enumerate(diff.splitlines(1)):
                 if blockno == 0:
                     lineno = lineno + 1
                 else:
                     lineno = "%d.%d" % (blockno, lineno + 1)
                 if l.startswith('+'):
                     ltype = "difflineplus"
                 elif l.startswith('-'):
                     ltype = "difflineminus"
                 elif l.startswith('@'):
                     ltype = "difflineat"
                 else:
                     ltype = "diffline"
                 yield tmpl(ltype,
                            line=l,
                            lineid="l%s" % lineno,
                            linenumber="% 8s" % lineno)
 
         r = self.repo
-        c1 = r.changectx(node1)
-        c2 = r.changectx(node2)
+        c1 = r[node1]
+        c2 = r[node2]
         date1 = util.datestr(c1.date())
         date2 = util.datestr(c2.date())
 
         modified, added, removed, deleted, unknown = r.status(node1, node2)[:5]
         if files:
             modified, added, removed = map(lambda x: filterfiles(files, x),
                                            (modified, added, removed))
 
         diffopts = patch.diffopts(self.repo.ui, untrusted=True)
         for f in modified:
             to = c1.filectx(f).data()
             tn = c2.filectx(f).data()
             yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
                                           opts=diffopts), f, tn)
         for f in added:
             to = None
             tn = c2.filectx(f).data()
             yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
                                           opts=diffopts), f, tn)
         for f in removed:
             to = c1.filectx(f).data()
             tn = None
             yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
                                           opts=diffopts), f, tn)
 
     archive_specs = {
         'bz2': ('application/x-tar', 'tbz2', '.tar.bz2', None),
         'gz': ('application/x-tar', 'tgz', '.tar.gz', None),
         'zip': ('application/zip', 'zip', '.zip', None),
         }
 
     def check_perm(self, req, op, default):
         '''check permission for operation based on user auth.
         return true if op allowed, else false.
         default is policy to use if no config given.'''
 
         user = req.env.get('REMOTE_USER')
 
         deny = self.configlist('web', 'deny_' + op)
         if deny and (not user or deny == ['*'] or user in deny):
             return False
 
         allow = self.configlist('web', 'allow_' + op)
         return (allow and (allow == ['*'] or user in allow)) or default

mercurial/hgweb/webcommands.py

@@ -1,613 +1,612 b''
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 import os, mimetypes, re, cgi
 import webutil
 from mercurial import revlog, archival, templatefilters
 from mercurial.node import short, hex, nullid
 from mercurial.util import binary, datestr
 from mercurial.repo import RepoError
 from common import paritygen, staticfile, get_contact, ErrorResponse
 from common import HTTP_OK, HTTP_NOT_FOUND
 from mercurial import graphmod
 
 # __all__ is populated with the allowed commands. Be sure to add to it if
 # you're adding a new command, or the new command won't work.
 
 __all__ = [
    'log', 'rawfile', 'file', 'changelog', 'shortlog', 'changeset', 'rev',
    'manifest', 'tags', 'summary', 'filediff', 'diff', 'annotate', 'filelog',
    'archive', 'static', 'graph',
 ]
 
 def log(web, req, tmpl):
     if 'file' in req.form and req.form['file'][0]:
         return filelog(web, req, tmpl)
     else:
         return changelog(web, req, tmpl)
 
 def rawfile(web, req, tmpl):
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
     if not path:
         content = manifest(web, req, tmpl)
         req.respond(HTTP_OK, web.ctype)
         return content
 
     try:
         fctx = webutil.filectx(web.repo, req)
     except revlog.LookupError, inst:
         try:
             content = manifest(web, req, tmpl)
             req.respond(HTTP_OK, web.ctype)
             return content
         except ErrorResponse:
             raise inst
 
     path = fctx.path()
     text = fctx.data()
     mt = mimetypes.guess_type(path)[0]
     if mt is None or binary(text):
         mt = mt or 'application/octet-stream'
 
     req.respond(HTTP_OK, mt, path, len(text))
     return [text]
 
 def _filerevision(web, tmpl, fctx):
     f = fctx.path()
     text = fctx.data()
     fl = fctx.filelog()
     n = fctx.filenode()
     parity = paritygen(web.stripecount)
 
     if binary(text):
         mt = mimetypes.guess_type(f)[0] or 'application/octet-stream'
         text = '(binary:%s)' % mt
 
     def lines():
         for lineno, t in enumerate(text.splitlines(1)):
             yield {"line": t,
                    "lineid": "l%d" % (lineno + 1),
                    "linenumber": "% 6d" % (lineno + 1),
                    "parity": parity.next()}
 
     return tmpl("filerevision",
                 file=f,
                 path=webutil.up(f),
                 text=lines(),
                 rev=fctx.rev(),
                 node=hex(fctx.node()),
                 author=fctx.user(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(fctx.parents()),
                 child=webutil.siblings(fctx.children()),
                 rename=webutil.renamelink(fctx),
                 permissions=fctx.manifest().flags(f))
 
 def file(web, req, tmpl):
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
     if path:
         try:
             return _filerevision(web, tmpl, webutil.filectx(web.repo, req))
         except revlog.LookupError, inst:
             pass
 
     try:
         return manifest(web, req, tmpl)
     except ErrorResponse:
         raise inst
 
 def _search(web, tmpl, query):
 
     def changelist(**map):
         cl = web.repo.changelog
         count = 0
         qw = query.lower().split()
 
         def revgen():
             for i in xrange(cl.count() - 1, 0, -100):
                 l = []
                 for j in xrange(max(0, i - 100), i + 1):
-                    ctx = web.repo.changectx(j)
+                    ctx = web.repo[j]
                     l.append(ctx)
                 l.reverse()
                 for e in l:
                     yield e
 
         for ctx in revgen():
             miss = 0
             for q in qw:
                 if not (q in ctx.user().lower() or
                         q in ctx.description().lower() or
                         q in " ".join(ctx.files()).lower()):
                     miss = 1
                     break
             if miss:
                 continue
 
             count += 1
             n = ctx.node()
             showtags = webutil.showtag(web.repo, tmpl, 'changelogtag', n)
 
             yield tmpl('searchentry',
                        parity=parity.next(),
                        author=ctx.user(),
                        parent=webutil.siblings(ctx.parents()),
                        child=webutil.siblings(ctx.children()),
                        changelogtag=showtags,
                        desc=ctx.description(),
                        date=ctx.date(),
                        files=web.listfilediffs(tmpl, ctx.files(), n),
                        rev=ctx.rev(),
                        node=hex(n),
                        tags=webutil.nodetagsdict(web.repo, n),
                        inbranch=webutil.nodeinbranch(web.repo, ctx),
                        branches=webutil.nodebranchdict(web.repo, ctx))
 
             if count >= web.maxchanges:
                 break
 
     cl = web.repo.changelog
     parity = paritygen(web.stripecount)
 
     return tmpl('search',
                 query=query,
                 node=hex(cl.tip()),
                 entries=changelist,
                 archives=web.archivelist("tip"))
 
 def changelog(web, req, tmpl, shortlog = False):
     if 'node' in req.form:
         ctx = webutil.changectx(web.repo, req)
     else:
         if 'rev' in req.form:
             hi = req.form['rev'][0]
         else:
             hi = web.repo.changelog.count() - 1
         try:
-            ctx = web.repo.changectx(hi)
+            ctx = web.repo[hi]
         except RepoError:
             return _search(web, tmpl, hi) # XXX redirect to 404 page?
 
     def changelist(limit=0, **map):
         cl = web.repo.changelog
         l = [] # build a list in forward order for efficiency
         for i in xrange(start, end):
-            ctx = web.repo.changectx(i)
+            ctx = web.repo[i]
             n = ctx.node()
             showtags = webutil.showtag(web.repo, tmpl, 'changelogtag', n)
 
             l.insert(0, {"parity": parity.next(),
                          "author": ctx.user(),
                          "parent": webutil.siblings(ctx.parents(), i - 1),
                          "child": webutil.siblings(ctx.children(), i + 1),
                          "changelogtag": showtags,
                          "desc": ctx.description(),
                          "date": ctx.date(),
                          "files": web.listfilediffs(tmpl, ctx.files(), n),
                          "rev": i,
                          "node": hex(n),
                          "tags": webutil.nodetagsdict(web.repo, n),
                          "inbranch": webutil.nodeinbranch(web.repo, ctx),
                          "branches": webutil.nodebranchdict(web.repo, ctx)
                         })
 
         if limit > 0:
             l = l[:limit]
 
         for e in l:
             yield e
 
     maxchanges = shortlog and web.maxshortchanges or web.maxchanges
     cl = web.repo.changelog
     count = cl.count()
     pos = ctx.rev()
     start = max(0, pos - maxchanges + 1)
     end = min(count, start + maxchanges)
     pos = end - 1
     parity = paritygen(web.stripecount, offset=start-end)
 
     changenav = webutil.revnavgen(pos, maxchanges, count, web.repo.changectx)
 
     return tmpl(shortlog and 'shortlog' or 'changelog',
                 changenav=changenav,
                 node=hex(ctx.node()),
                 rev=pos, changesets=count,
                 entries=lambda **x: changelist(limit=0,**x),
                 latestentry=lambda **x: changelist(limit=1,**x),
                 archives=web.archivelist("tip"))
 
 def shortlog(web, req, tmpl):
     return changelog(web, req, tmpl, shortlog = True)
 
 def changeset(web, req, tmpl):
     ctx = webutil.changectx(web.repo, req)
     n = ctx.node()
     showtags = webutil.showtag(web.repo, tmpl, 'changesettag', n)
     parents = ctx.parents()
     p1 = parents[0].node()
 
     files = []
     parity = paritygen(web.stripecount)
     for f in ctx.files():
         files.append(tmpl("filenodelink",
                           node=hex(n), file=f,
                           parity=parity.next()))
 
     diffs = web.diff(tmpl, p1, n, None)
     return tmpl('changeset',
                 diff=diffs,
                 rev=ctx.rev(),
                 node=hex(n),
                 parent=webutil.siblings(parents),
                 child=webutil.siblings(ctx.children()),
                 changesettag=showtags,
                 author=ctx.user(),
                 desc=ctx.description(),
                 date=ctx.date(),
                 files=files,
                 archives=web.archivelist(hex(n)),
                 tags=webutil.nodetagsdict(web.repo, n),
                 branch=webutil.nodebranchnodefault(ctx),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx))
 
 rev = changeset
 
 def manifest(web, req, tmpl):
     ctx = webutil.changectx(web.repo, req)
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
     mf = ctx.manifest()
     node = ctx.node()
 
     files = {}
     parity = paritygen(web.stripecount)
 
     if path and path[-1] != "/":
         path += "/"
     l = len(path)
     abspath = "/" + path
 
     for f, n in mf.items():
         if f[:l] != path:
             continue
         remain = f[l:]
         if "/" in remain:
             short = remain[:remain.index("/") + 1] # bleah
             files[short] = (f, None)
         else:
             short = os.path.basename(remain)
             files[short] = (f, n)
 
     if not files:
         raise ErrorResponse(HTTP_NOT_FOUND, 'path not found: ' + path)
 
     def filelist(**map):
         fl = files.keys()
         fl.sort()
         for f in fl:
             full, fnode = files[f]
             if not fnode:
                 continue
 
             fctx = ctx.filectx(full)
             yield {"file": full,
                    "parity": parity.next(),
                    "basename": f,
-                   "date": fctx.changectx().date(),
+                   "date": fctx.date(),
                    "size": fctx.size(),
                    "permissions": mf.flags(full)}
 
     def dirlist(**map):
         fl = files.keys()
         fl.sort()
         for f in fl:
             full, fnode = files[f]
             if fnode:
                 continue
 
             yield {"parity": parity.next(),
                    "path": "%s%s" % (abspath, f),
                    "basename": f[:-1]}
 
     return tmpl("manifest",
                 rev=ctx.rev(),
                 node=hex(node),
                 path=abspath,
                 up=webutil.up(abspath),
                 upparity=parity.next(),
                 fentries=filelist,
                 dentries=dirlist,
                 archives=web.archivelist(hex(node)),
                 tags=webutil.nodetagsdict(web.repo, node),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx))
 
 def tags(web, req, tmpl):
     i = web.repo.tagslist()
     i.reverse()
     parity = paritygen(web.stripecount)
 
     def entries(notip=False,limit=0, **map):
         count = 0
         for k, n in i:
             if notip and k == "tip":
                 continue
             if limit > 0 and count >= limit:
                 continue
             count = count + 1
             yield {"parity": parity.next(),
                    "tag": k,
-                   "date": web.repo.changectx(n).date(),
+                   "date": web.repo[n].date(),
                    "node": hex(n)}
 
     return tmpl("tags",
                 node=hex(web.repo.changelog.tip()),
                 entries=lambda **x: entries(False,0, **x),
                 entriesnotip=lambda **x: entries(True,0, **x),
                 latestentry=lambda **x: entries(True,1, **x))
 
 def summary(web, req, tmpl):
     i = web.repo.tagslist()
     i.reverse()
 
     def tagentries(**map):
         parity = paritygen(web.stripecount)
         count = 0
         for k, n in i:
             if k == "tip": # skip tip
                 continue
 
             count += 1
             if count > 10: # limit to 10 tags
                 break
 
             yield tmpl("tagentry",
                        parity=parity.next(),
                        tag=k,
                        node=hex(n),
-                       date=web.repo.changectx(n).date())
+                       date=web.repo[n].date())
 
     def branches(**map):
         parity = paritygen(web.stripecount)
 
         b = web.repo.branchtags()
         l = [(-web.repo.changelog.rev(n), n, t) for t, n in b.items()]
         l.sort()
 
         for r,n,t in l:
-            ctx = web.repo.changectx(n)
             yield {'parity': parity.next(),
                    'branch': t,
                    'node': hex(n),
-                   'date': ctx.date()}
+                   'date': web.repo[n].date()}
 
     def changelist(**map):
         parity = paritygen(web.stripecount, offset=start-end)
         l = [] # build a list in forward order for efficiency
         for i in xrange(start, end):
-            ctx = web.repo.changectx(i)
+            ctx = web.repo[i]
             n = ctx.node()
             hn = hex(n)
 
             l.insert(0, tmpl(
                'shortlogentry',
                 parity=parity.next(),
                 author=ctx.user(),
                 desc=ctx.description(),
                 date=ctx.date(),
                 rev=i,
                 node=hn,
                 tags=webutil.nodetagsdict(web.repo, n),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx)))
 
         yield l
 
     cl = web.repo.changelog
     count = cl.count()
     start = max(0, count - web.maxchanges)
     end = min(count, start + web.maxchanges)
 
     return tmpl("summary",
                 desc=web.config("web", "description", "unknown"),
                 owner=get_contact(web.config) or "unknown",
                 lastchange=cl.read(cl.tip())[2],
                 tags=tagentries,
                 branches=branches,
                 shortlog=changelist,
                 node=hex(cl.tip()),
                 archives=web.archivelist("tip"))
 
 def filediff(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     n = fctx.node()
     path = fctx.path()
     parents = fctx.parents()
     p1 = parents and parents[0].node() or nullid
 
     diffs = web.diff(tmpl, p1, n, [path])
     return tmpl("filediff",
                 file=path,
                 node=hex(n),
                 rev=fctx.rev(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 author=fctx.user(),
                 rename=webutil.renamelink(fctx),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(parents),
                 child=webutil.siblings(fctx.children()),
                 diff=diffs)
 
 diff = filediff
 
 def annotate(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     n = fctx.filenode()
     fl = fctx.filelog()
     parity = paritygen(web.stripecount)
 
     def annotate(**map):
         last = None
         if binary(fctx.data()):
             mt = (mimetypes.guess_type(fctx.path())[0]
                   or 'application/octet-stream')
             lines = enumerate([((fctx.filectx(fctx.filerev()), 1),
                                 '(binary:%s)' % mt)])
         else:
             lines = enumerate(fctx.annotate(follow=True, linenumber=True))
         for lineno, ((f, targetline), l) in lines:
             fnode = f.filenode()
 
             if last != fnode:
                 last = fnode
 
             yield {"parity": parity.next(),
                    "node": hex(f.node()),
                    "rev": f.rev(),
                    "author": f.user(),
                    "desc": f.description(),
                    "file": f.path(),
                    "targetline": targetline,
                    "line": l,
                    "lineid": "l%d" % (lineno + 1),
                    "linenumber": "% 6d" % (lineno + 1)}
 
     return tmpl("fileannotate",
                 file=f,
                 annotate=annotate,
                 path=webutil.up(f),
                 rev=fctx.rev(),
                 node=hex(fctx.node()),
                 author=fctx.user(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 rename=webutil.renamelink(fctx),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(fctx.parents()),
                 child=webutil.siblings(fctx.children()),
                 permissions=fctx.manifest().flags(f))
 
 def filelog(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     fl = fctx.filelog()
     count = fl.count()
     pagelen = web.maxshortchanges
     pos = fctx.filerev()
     start = max(0, pos - pagelen + 1)
     end = min(count, start + pagelen)
     pos = end - 1
     parity = paritygen(web.stripecount, offset=start-end)
 
     def entries(limit=0, **map):
         l = []
 
         for i in xrange(start, end):
             ctx = fctx.filectx(i)
             n = fl.node(i)
 
             l.insert(0, {"parity": parity.next(),
                          "filerev": i,
                          "file": f,
                          "node": hex(ctx.node()),
                          "author": ctx.user(),
                          "date": ctx.date(),
                          "rename": webutil.renamelink(fctx),
                          "parent": webutil.siblings(fctx.parents()),
                          "child": webutil.siblings(fctx.children()),
                          "desc": ctx.description()})
 
         if limit > 0:
             l = l[:limit]
 
         for e in l:
             yield e
 
     nodefunc = lambda x: fctx.filectx(fileid=x)
     nav = webutil.revnavgen(pos, pagelen, count, nodefunc)
     return tmpl("filelog", file=f, node=hex(fctx.node()), nav=nav,
                 entries=lambda **x: entries(limit=0, **x),
                 latestentry=lambda **x: entries(limit=1, **x))
 
 
 def archive(web, req, tmpl):
     type_ = req.form.get('type', [None])[0]
     allowed = web.configlist("web", "allow_archive")
     key = req.form['node'][0]
 
     if not (type_ in web.archives and (type_ in allowed or
         web.configbool("web", "allow" + type_, False))):
         msg = 'Unsupported archive type: %s' % type_
         raise ErrorResponse(HTTP_NOT_FOUND, msg)
 
     reponame = re.sub(r"\W+", "-", os.path.basename(web.reponame))
     cnode = web.repo.lookup(key)
     arch_version = key
     if cnode == key or key == 'tip':
         arch_version = short(cnode)
     name = "%s-%s" % (reponame, arch_version)
     mimetype, artype, extension, encoding = web.archive_specs[type_]
     headers = [
         ('Content-Type', mimetype),
         ('Content-Disposition', 'attachment; filename=%s%s' % (name, extension))
     ]
     if encoding:
         headers.append(('Content-Encoding', encoding))
     req.header(headers)
     req.respond(HTTP_OK)
     archival.archive(web.repo, req, cnode, artype, prefix=name)
     return []
 
 
 def static(web, req, tmpl):
     fname = req.form['file'][0]
     # a repo owner may set web.static in .hg/hgrc to get any file
     # readable by the user running the CGI script
     static = web.config("web", "static",
                         os.path.join(web.templatepath, "static"),
                         untrusted=False)
     return [staticfile(static, fname, req)]
 
 def graph(web, req, tmpl):
     rev = webutil.changectx(web.repo, req).rev()
     bg_height = 39
 
     max_rev = web.repo.changelog.count() - 1
     revcount = min(max_rev, int(req.form.get('revcount', [25])[0]))
     revnode = web.repo.changelog.node(rev)
     revnode_hex = hex(revnode)
     uprev = min(max_rev, rev + revcount)
     downrev = max(0, rev - revcount)
     lessrev = max(0, rev - revcount / 2)
 
     maxchanges = web.maxshortchanges or web.maxchanges
     count = web.repo.changelog.count()
     changenav = webutil.revnavgen(rev, maxchanges, count, web.repo.changectx)
 
     tree = list(graphmod.graph(web.repo, rev, rev - revcount))
     canvasheight = (len(tree) + 1) * bg_height - 27;
 
     data = []
     for i, (ctx, vtx, edges) in enumerate(tree):
         node = short(ctx.node())
         age = templatefilters.age(ctx.date())
         desc = templatefilters.firstline(ctx.description())
         desc = cgi.escape(desc)
         user = cgi.escape(templatefilters.person(ctx.user()))
         branch = ctx.branch()
         branch = branch, web.repo.branchtags().get(branch) == ctx.node()
         data.append((node, vtx, edges, desc, user, age, branch, ctx.tags()))
 
     return tmpl('graph', rev=rev, revcount=revcount, uprev=uprev,
                 lessrev=lessrev, revcountmore=revcount and 2 * revcount or 1,
                 revcountless=revcount / 2, downrev=downrev,
                 canvasheight=canvasheight, bg_height=bg_height,
                 jsdata=data, node=revnode_hex, changenav=changenav)

mercurial/hgweb/webutil.py

@@ -1,143 +1,141 b''
 # hgweb/webutil.py - utility library for the web interface.
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 import os
 from mercurial.node import hex, nullid
 from mercurial.repo import RepoError
 from mercurial import util
 
 def up(p):
     if p[0] != "/":
         p = "/" + p
     if p[-1] == "/":
         p = p[:-1]
     up = os.path.dirname(p)
     if up == "/":
         return "/"
     return up + "/"
 
 def revnavgen(pos, pagelen, limit, nodefunc):
     def seq(factor, limit=None):
         if limit:
             yield limit
             if limit >= 20 and limit <= 40:
                 yield 50
         else:
             yield 1 * factor
             yield 3 * factor
         for f in seq(factor * 10):
             yield f
 
     def nav(**map):
         l = []
         last = 0
         for f in seq(1, pagelen):
             if f < pagelen or f <= last:
                 continue
             if f > limit:
                 break
             last = f
             if pos + f < limit:
                 l.append(("+%d" % f, hex(nodefunc(pos + f).node())))
             if pos - f >= 0:
                 l.insert(0, ("-%d" % f, hex(nodefunc(pos - f).node())))
 
         try:
             yield {"label": "(0)", "node": hex(nodefunc('0').node())}
 
             for label, node in l:
                 yield {"label": label, "node": node}
 
             yield {"label": "tip", "node": "tip"}
         except RepoError:
             pass
 
     return nav
 
 def siblings(siblings=[], hiderev=None, **args):
     siblings = [s for s in siblings if s.node() != nullid]
     if len(siblings) == 1 and siblings[0].rev() == hiderev:
         return
     for s in siblings:
         d = {'node': hex(s.node()), 'rev': s.rev()}
         if hasattr(s, 'path'):
             d['file'] = s.path()
         d.update(args)
         yield d
 
 def renamelink(fctx):
     r = fctx.renamed()
     if r:
         return [dict(file=r[0], node=hex(r[1]))]
     return []
 
 def nodetagsdict(repo, node):
     return [{"name": i} for i in repo.nodetags(node)]
 
 def nodebranchdict(repo, ctx):
     branches = []
     branch = ctx.branch()
     # If this is an empty repo, ctx.node() == nullid,
     # ctx.branch() == 'default', but branchtags() is
     # an empty dict. Using dict.get avoids a traceback.
     if repo.branchtags().get(branch) == ctx.node():
         branches.append({"name": branch})
     return branches
 
 def nodeinbranch(repo, ctx):
     branches = []
     branch = ctx.branch()
     if branch != 'default' and repo.branchtags().get(branch) != ctx.node():
         branches.append({"name": branch})
     return branches
 
 def nodebranchnodefault(ctx):
     branches = []
     branch = ctx.branch()
     if branch != 'default':
         branches.append({"name": branch})
     return branches
 
 def showtag(repo, tmpl, t1, node=nullid, **args):
     for t in repo.nodetags(node):
         yield tmpl(t1, tag=t, **args)
 
 def cleanpath(repo, path):
     path = path.lstrip('/')
     return util.canonpath(repo.root, '', path)
 
 def changectx(repo, req):
     if 'node' in req.form:
         changeid = req.form['node'][0]
     elif 'manifest' in req.form:
         changeid = req.form['manifest'][0]
     else:
         changeid = repo.changelog.count() - 1
 
     try:
-        ctx = repo.changectx(changeid)
+        ctx = repo[changeid]
     except RepoError:
         man = repo.manifest
-        mn = man.lookup(changeid)
-        ctx = repo.changectx(man.linkrev(mn))
+        ctx = repo[man.linkrev(man.lookup(changeid))]
 
     return ctx
 
 def filectx(repo, req):
     path = cleanpath(repo, req.form['file'][0])
     if 'node' in req.form:
         changeid = req.form['node'][0]
     else:
         changeid = req.form['filenode'][0]
     try:
-        ctx = repo.changectx(changeid)
-        fctx = ctx.filectx(path)
+        fctx = repo[changeid][path]
     except RepoError:
         fctx = repo.filectx(path, fileid=changeid)
 
     return fctx

mercurial/localrepo.py

@@ -1,2123 +1,2127 b''
 # localrepo.py - read/write repository class for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import bin, hex, nullid, nullrev, short
 from i18n import _
 import repo, changegroup
 import changelog, dirstate, filelog, manifest, context, weakref
 import lock, transaction, stat, errno, ui
 import os, revlog, time, util, extensions, hook, inspect
 import match as match_
 
 class localrepository(repo.repository):
     capabilities = util.set(('lookup', 'changegroupsubset'))
     supported = ('revlogv1', 'store')
 
     def __init__(self, parentui, path=None, create=0):
         repo.repository.__init__(self)
         self.root = os.path.realpath(path)
         self.path = os.path.join(self.root, ".hg")
         self.origroot = path
         self.opener = util.opener(self.path)
         self.wopener = util.opener(self.root)
 
         if not os.path.isdir(self.path):
             if create:
                 if not os.path.exists(path):
                     os.mkdir(path)
                 os.mkdir(self.path)
                 requirements = ["revlogv1"]
                 if parentui.configbool('format', 'usestore', True):
                     os.mkdir(os.path.join(self.path, "store"))
                     requirements.append("store")
                     # create an invalid changelog
                     self.opener("00changelog.i", "a").write(
                         '\0\0\0\2' # represents revlogv2
                         ' dummy changelog to prevent using the old repo layout'
                     )
                 reqfile = self.opener("requires", "w")
                 for r in requirements:
                     reqfile.write("%s\n" % r)
                 reqfile.close()
             else:
                 raise repo.RepoError(_("repository %s not found") % path)
         elif create:
             raise repo.RepoError(_("repository %s already exists") % path)
         else:
             # find requirements
             try:
                 requirements = self.opener("requires").read().splitlines()
             except IOError, inst:
                 if inst.errno != errno.ENOENT:
                     raise
                 requirements = []
         # check them
         for r in requirements:
             if r not in self.supported:
                 raise repo.RepoError(_("requirement '%s' not supported") % r)
 
         # setup store
         if "store" in requirements:
             self.encodefn = util.encodefilename
             self.decodefn = util.decodefilename
             self.spath = os.path.join(self.path, "store")
         else:
             self.encodefn = lambda x: x
             self.decodefn = lambda x: x
             self.spath = self.path
 
         try:
             # files in .hg/ will be created using this mode
             mode = os.stat(self.spath).st_mode
             # avoid some useless chmods
             if (0777 & ~util._umask) == (0777 & mode):
                 mode = None
         except OSError:
             mode = None
 
         self._createmode = mode
         self.opener.createmode = mode
         sopener = util.opener(self.spath)
         sopener.createmode = mode
         self.sopener = util.encodedopener(sopener, self.encodefn)
 
         self.ui = ui.ui(parentui=parentui)
         try:
             self.ui.readconfig(self.join("hgrc"), self.root)
             extensions.loadall(self.ui)
         except IOError:
             pass
 
         self.tagscache = None
         self._tagstypecache = None
         self.branchcache = None
         self._ubranchcache = None  # UTF-8 version of branchcache
         self._branchcachetip = None
         self.nodetagscache = None
         self.filterpats = {}
         self._datafilters = {}
         self._transref = self._lockref = self._wlockref = None
 
     def __getattr__(self, name):
         if name == 'changelog':
             self.changelog = changelog.changelog(self.sopener)
             self.sopener.defversion = self.changelog.version
             return self.changelog
         if name == 'manifest':
             self.changelog
             self.manifest = manifest.manifest(self.sopener)
             return self.manifest
         if name == 'dirstate':
             self.dirstate = dirstate.dirstate(self.opener, self.ui, self.root)
             return self.dirstate
         else:
             raise AttributeError, name
 
+    def __getitem__(self, changeid):
+        if changeid == None:
+            return context.workingctx(self)
+        return context.changectx(self, changeid)
+
     def url(self):
         return 'file:' + self.root
 
     def hook(self, name, throw=False, **args):
         return hook.hook(self.ui, self, name, throw, **args)
 
     tag_disallowed = ':\r\n'
 
     def _tag(self, names, node, message, local, user, date, parent=None,
              extra={}):
         use_dirstate = parent is None
 
         if isinstance(names, str):
             allchars = names
             names = (names,)
         else:
             allchars = ''.join(names)
         for c in self.tag_disallowed:
             if c in allchars:
                 raise util.Abort(_('%r cannot be used in a tag name') % c)
 
         for name in names:
             self.hook('pretag', throw=True, node=hex(node), tag=name,
                       local=local)
 
         def writetags(fp, names, munge, prevtags):
             fp.seek(0, 2)
             if prevtags and prevtags[-1] != '\n':
                 fp.write('\n')
             for name in names:
                 m = munge and munge(name) or name
                 if self._tagstypecache and name in self._tagstypecache:
                     old = self.tagscache.get(name, nullid)
                     fp.write('%s %s\n' % (hex(old), m))
                 fp.write('%s %s\n' % (hex(node), m))
             fp.close()
 
         prevtags = ''
         if local:
             try:
                 fp = self.opener('localtags', 'r+')
             except IOError, err:
                 fp = self.opener('localtags', 'a')
             else:
                 prevtags = fp.read()
 
             # local tags are stored in the current charset
             writetags(fp, names, None, prevtags)
             for name in names:
                 self.hook('tag', node=hex(node), tag=name, local=local)
             return
 
         if use_dirstate:
             try:
                 fp = self.wfile('.hgtags', 'rb+')
             except IOError, err:
                 fp = self.wfile('.hgtags', 'ab')
             else:
                 prevtags = fp.read()
         else:
             try:
                 prevtags = self.filectx('.hgtags', parent).data()
             except revlog.LookupError:
                 pass
             fp = self.wfile('.hgtags', 'wb')
             if prevtags:
                 fp.write(prevtags)
 
         # committed tags are stored in UTF-8
         writetags(fp, names, util.fromlocal, prevtags)
 
         if use_dirstate and '.hgtags' not in self.dirstate:
             self.add(['.hgtags'])
 
         tagnode = self.commit(['.hgtags'], message, user, date, p1=parent,
                               extra=extra)
 
         for name in names:
             self.hook('tag', node=hex(node), tag=name, local=local)
 
         return tagnode
 
     def tag(self, names, node, message, local, user, date):
         '''tag a revision with one or more symbolic names.
 
         names is a list of strings or, when adding a single tag, names may be a
         string.
 
         if local is True, the tags are stored in a per-repository file.
         otherwise, they are stored in the .hgtags file, and a new
         changeset is committed with the change.
 
         keyword arguments:
 
         local: whether to store tags in non-version-controlled file
         (default False)
 
         message: commit message to use if committing
 
         user: name of user to use if committing
 
         date: date tuple to use if committing'''
 
         for x in self.status()[:5]:
             if '.hgtags' in x:
                 raise util.Abort(_('working copy of .hgtags is changed '
                                    '(please commit .hgtags manually)'))
 
         self._tag(names, node, message, local, user, date)
 
     def tags(self):
         '''return a mapping of tag to node'''
         if self.tagscache:
             return self.tagscache
 
         globaltags = {}
         tagtypes = {}
 
         def readtags(lines, fn, tagtype):
             filetags = {}
             count = 0
 
             def warn(msg):
                 self.ui.warn(_("%s, line %s: %s\n") % (fn, count, msg))
 
             for l in lines:
                 count += 1
                 if not l:
                     continue
                 s = l.split(" ", 1)
                 if len(s) != 2:
                     warn(_("cannot parse entry"))
                     continue
                 node, key = s
                 key = util.tolocal(key.strip()) # stored in UTF-8
                 try:
                     bin_n = bin(node)
                 except TypeError:
                     warn(_("node '%s' is not well formed") % node)
                     continue
                 if bin_n not in self.changelog.nodemap:
                     warn(_("tag '%s' refers to unknown node") % key)
                     continue
 
                 h = []
                 if key in filetags:
                     n, h = filetags[key]
                     h.append(n)
                 filetags[key] = (bin_n, h)
 
             for k, nh in filetags.items():
                 if k not in globaltags:
                     globaltags[k] = nh
                     tagtypes[k] = tagtype
                     continue
 
                 # we prefer the global tag if:
                 #  it supercedes us OR
                 #  mutual supercedes and it has a higher rank
                 # otherwise we win because we're tip-most
                 an, ah = nh
                 bn, bh = globaltags[k]
                 if (bn != an and an in bh and
                     (bn not in ah or len(bh) > len(ah))):
                     an = bn
                 ah.extend([n for n in bh if n not in ah])
                 globaltags[k] = an, ah
                 tagtypes[k] = tagtype
 
         # read the tags file from each head, ending with the tip
         f = None
         for rev, node, fnode in self._hgtagsnodes():
             f = (f and f.filectx(fnode) or
                  self.filectx('.hgtags', fileid=fnode))
             readtags(f.data().splitlines(), f, "global")
 
         try:
             data = util.fromlocal(self.opener("localtags").read())
             # localtags are stored in the local character set
             # while the internal tag table is stored in UTF-8
             readtags(data.splitlines(), "localtags", "local")
         except IOError:
             pass
 
         self.tagscache = {}
         self._tagstypecache = {}
         for k,nh in globaltags.items():
             n = nh[0]
             if n != nullid:
                 self.tagscache[k] = n
             self._tagstypecache[k] = tagtypes[k]
         self.tagscache['tip'] = self.changelog.tip()
         return self.tagscache
 
     def tagtype(self, tagname):
         '''
         return the type of the given tag. result can be:
 
         'local'  : a local tag
         'global' : a global tag
         None     : tag does not exist
         '''
 
         self.tags()
 
         return self._tagstypecache.get(tagname)
 
     def _hgtagsnodes(self):
         heads = self.heads()
         heads.reverse()
         last = {}
         ret = []
         for node in heads:
-            c = self.changectx(node)
+            c = self[node]
             rev = c.rev()
             try:
                 fnode = c.filenode('.hgtags')
             except revlog.LookupError:
                 continue
             ret.append((rev, node, fnode))
             if fnode in last:
                 ret[last[fnode]] = None
             last[fnode] = len(ret) - 1
         return [item for item in ret if item]
 
     def tagslist(self):
         '''return a list of tags ordered by revision'''
         l = []
         for t, n in self.tags().items():
             try:
                 r = self.changelog.rev(n)
             except:
                 r = -2 # sort to the beginning of the list if unknown
             l.append((r, t, n))
         l.sort()
         return [(t, n) for r, t, n in l]
 
     def nodetags(self, node):
         '''return the tags associated with a node'''
         if not self.nodetagscache:
             self.nodetagscache = {}
             for t, n in self.tags().items():
                 self.nodetagscache.setdefault(n, []).append(t)
         return self.nodetagscache.get(node, [])
 
     def _branchtags(self, partial, lrev):
         tiprev = self.changelog.count() - 1
         if lrev != tiprev:
             self._updatebranchcache(partial, lrev+1, tiprev+1)
             self._writebranchcache(partial, self.changelog.tip(), tiprev)
 
         return partial
 
     def branchtags(self):
         tip = self.changelog.tip()
         if self.branchcache is not None and self._branchcachetip == tip:
             return self.branchcache
 
         oldtip = self._branchcachetip
         self._branchcachetip = tip
         if self.branchcache is None:
             self.branchcache = {} # avoid recursion in changectx
         else:
             self.branchcache.clear() # keep using the same dict
         if oldtip is None or oldtip not in self.changelog.nodemap:
             partial, last, lrev = self._readbranchcache()
         else:
             lrev = self.changelog.rev(oldtip)
             partial = self._ubranchcache
 
         self._branchtags(partial, lrev)
 
         # the branch cache is stored on disk as UTF-8, but in the local
         # charset internally
         for k, v in partial.items():
             self.branchcache[util.tolocal(k)] = v
         self._ubranchcache = partial
         return self.branchcache
 
     def _readbranchcache(self):
         partial = {}
         try:
             f = self.opener("branch.cache")
             lines = f.read().split('\n')
             f.close()
         except (IOError, OSError):
             return {}, nullid, nullrev
 
         try:
             last, lrev = lines.pop(0).split(" ", 1)
             last, lrev = bin(last), int(lrev)
             if not (lrev < self.changelog.count() and
                     self.changelog.node(lrev) == last): # sanity check
                 # invalidate the cache
                 raise ValueError('invalidating branch cache (tip differs)')
             for l in lines:
                 if not l: continue
                 node, label = l.split(" ", 1)
                 partial[label.strip()] = bin(node)
         except (KeyboardInterrupt, util.SignalInterrupt):
             raise
         except Exception, inst:
             if self.ui.debugflag:
                 self.ui.warn(str(inst), '\n')
             partial, last, lrev = {}, nullid, nullrev
         return partial, last, lrev
 
     def _writebranchcache(self, branches, tip, tiprev):
         try:
             f = self.opener("branch.cache", "w", atomictemp=True)
             f.write("%s %s\n" % (hex(tip), tiprev))
             for label, node in branches.iteritems():
                 f.write("%s %s\n" % (hex(node), label))
             f.rename()
         except (IOError, OSError):
             pass
 
     def _updatebranchcache(self, partial, start, end):
         for r in xrange(start, end):
-            c = self.changectx(r)
+            c = self[r]
             b = c.branch()
             partial[b] = c.node()
 
     def lookup(self, key):
         if key == '.':
             return self.dirstate.parents()[0]
         elif key == 'null':
             return nullid
         n = self.changelog._match(key)
         if n:
             return n
         if key in self.tags():
             return self.tags()[key]
         if key in self.branchtags():
             return self.branchtags()[key]
         n = self.changelog._partialmatch(key)
         if n:
             return n
         try:
             if len(key) == 20:
                 key = hex(key)
         except:
             pass
         raise repo.RepoError(_("unknown revision '%s'") % key)
 
     def local(self):
         return True
 
     def join(self, f):
         return os.path.join(self.path, f)
 
     def sjoin(self, f):
         f = self.encodefn(f)
         return os.path.join(self.spath, f)
 
     def wjoin(self, f):
         return os.path.join(self.root, f)
 
     def rjoin(self, f):
         return os.path.join(self.root, util.pconvert(f))
 
     def file(self, f):
         if f[0] == '/':
             f = f[1:]
         return filelog.filelog(self.sopener, f)
 
     def changectx(self, changeid):
-        if changeid == None:
-            return context.workingctx(self)
-        return context.changectx(self, changeid)
+        return self[changeid]
 
     def parents(self, changeid=None):
         '''get list of changectxs for parents of changeid'''
-        return self.changectx(changeid).parents()
+        return self[changeid].parents()
 
     def filectx(self, path, changeid=None, fileid=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         return context.filectx(self, path, changeid, fileid)
 
     def getcwd(self):
         return self.dirstate.getcwd()
 
     def pathto(self, f, cwd=None):
         return self.dirstate.pathto(f, cwd)
 
     def wfile(self, f, mode='r'):
         return self.wopener(f, mode)
 
     def _link(self, f):
         return os.path.islink(self.wjoin(f))
 
     def _filter(self, filter, filename, data):
         if filter not in self.filterpats:
             l = []
             for pat, cmd in self.ui.configitems(filter):
                 mf = util.matcher(self.root, "", [pat], [], [])[1]
                 fn = None
                 params = cmd
                 for name, filterfn in self._datafilters.iteritems():
                     if cmd.startswith(name):
                         fn = filterfn
                         params = cmd[len(name):].lstrip()
                         break
                 if not fn:
                     fn = lambda s, c, **kwargs: util.filter(s, c)
                 # Wrap old filters not supporting keyword arguments
                 if not inspect.getargspec(fn)[2]:
                     oldfn = fn
                     fn = lambda s, c, **kwargs: oldfn(s, c)
                 l.append((mf, fn, params))
             self.filterpats[filter] = l
 
         for mf, fn, cmd in self.filterpats[filter]:
             if mf(filename):
                 self.ui.debug(_("filtering %s through %s\n") % (filename, cmd))
                 data = fn(data, cmd, ui=self.ui, repo=self, filename=filename)
                 break
 
         return data
 
     def adddatafilter(self, name, filter):
         self._datafilters[name] = filter
 
     def wread(self, filename):
         if self._link(filename):
             data = os.readlink(self.wjoin(filename))
         else:
             data = self.wopener(filename, 'r').read()
         return self._filter("encode", filename, data)
 
     def wwrite(self, filename, data, flags):
         data = self._filter("decode", filename, data)
         try:
             os.unlink(self.wjoin(filename))
         except OSError:
             pass
         self.wopener(filename, 'w').write(data)
         util.set_flags(self.wjoin(filename), flags)
 
     def wwritedata(self, filename, data):
         return self._filter("decode", filename, data)
 
     def transaction(self):
         if self._transref and self._transref():
             return self._transref().nest()
 
         # abort here if the journal already exists
         if os.path.exists(self.sjoin("journal")):
             raise repo.RepoError(_("journal already exists - run hg recover"))
 
         # save dirstate for rollback
         try:
             ds = self.opener("dirstate").read()
         except IOError:
             ds = ""
         self.opener("journal.dirstate", "w").write(ds)
         self.opener("journal.branch", "w").write(self.dirstate.branch())
 
         renames = [(self.sjoin("journal"), self.sjoin("undo")),
                    (self.join("journal.dirstate"), self.join("undo.dirstate")),
                    (self.join("journal.branch"), self.join("undo.branch"))]
         tr = transaction.transaction(self.ui.warn, self.sopener,
                                      self.sjoin("journal"),
                                      aftertrans(renames),
                                      self._createmode)
         self._transref = weakref.ref(tr)
         return tr
 
     def recover(self):
         l = self.lock()
         try:
             if os.path.exists(self.sjoin("journal")):
                 self.ui.status(_("rolling back interrupted transaction\n"))
                 transaction.rollback(self.sopener, self.sjoin("journal"))
                 self.invalidate()
                 return True
             else:
                 self.ui.warn(_("no interrupted transaction available\n"))
                 return False
         finally:
             del l
 
     def rollback(self):
         wlock = lock = None
         try:
             wlock = self.wlock()
             lock = self.lock()
             if os.path.exists(self.sjoin("undo")):
                 self.ui.status(_("rolling back last transaction\n"))
                 transaction.rollback(self.sopener, self.sjoin("undo"))
                 util.rename(self.join("undo.dirstate"), self.join("dirstate"))
                 try:
                     branch = self.opener("undo.branch").read()
                     self.dirstate.setbranch(branch)
                 except IOError:
                     self.ui.warn(_("Named branch could not be reset, "
                                    "current branch still is: %s\n")
                                  % util.tolocal(self.dirstate.branch()))
                 self.invalidate()
                 self.dirstate.invalidate()
             else:
                 self.ui.warn(_("no rollback information available\n"))
         finally:
             del lock, wlock
 
     def invalidate(self):
         for a in "changelog manifest".split():
             if a in self.__dict__:
                 delattr(self, a)
         self.tagscache = None
         self._tagstypecache = None
         self.nodetagscache = None
         self.branchcache = None
         self._ubranchcache = None
         self._branchcachetip = None
 
     def _lock(self, lockname, wait, releasefn, acquirefn, desc):
         try:
             l = lock.lock(lockname, 0, releasefn, desc=desc)
         except lock.LockHeld, inst:
             if not wait:
                 raise
             self.ui.warn(_("waiting for lock on %s held by %r\n") %
                          (desc, inst.locker))
             # default to 600 seconds timeout
             l = lock.lock(lockname, int(self.ui.config("ui", "timeout", "600")),
                           releasefn, desc=desc)
         if acquirefn:
             acquirefn()
         return l
 
     def lock(self, wait=True):
         if self._lockref and self._lockref():
             return self._lockref()
 
         l = self._lock(self.sjoin("lock"), wait, None, self.invalidate,
                        _('repository %s') % self.origroot)
         self._lockref = weakref.ref(l)
         return l
 
     def wlock(self, wait=True):
         if self._wlockref and self._wlockref():
             return self._wlockref()
 
         l = self._lock(self.join("wlock"), wait, self.dirstate.write,
                        self.dirstate.invalidate, _('working directory of %s') %
                        self.origroot)
         self._wlockref = weakref.ref(l)
         return l
 
     def filecommit(self, fctx, manifest1, manifest2, linkrev, tr, changelist):
         """
         commit an individual file as part of a larger transaction
         """
 
         fn = fctx.path()
         t = fctx.data()
         fl = self.file(fn)
         fp1 = manifest1.get(fn, nullid)
         fp2 = manifest2.get(fn, nullid)
 
         meta = {}
         cp = fctx.renamed()
         if cp and cp[0] != fn:
             cp = cp[0]
             # Mark the new revision of this file as a copy of another
             # file.  This copy data will effectively act as a parent
             # of this new revision.  If this is a merge, the first
             # parent will be the nullid (meaning "look up the copy data")
             # and the second one will be the other parent.  For example:
             #
             # 0 --- 1 --- 3   rev1 changes file foo
             #   \       /     rev2 renames foo to bar and changes it
             #    \- 2 -/      rev3 should have bar with all changes and
             #                      should record that bar descends from
             #                      bar in rev2 and foo in rev1
             #
             # this allows this merge to succeed:
             #
             # 0 --- 1 --- 3   rev4 reverts the content change from rev2
             #   \       /     merging rev3 and rev4 should use bar@rev2
             #    \- 2 --- 4        as the merge base
             #
             meta["copy"] = cp
             if not manifest2: # not a branch merge
                 meta["copyrev"] = hex(manifest1[cp])
                 fp2 = nullid
             elif fp2 != nullid: # copied on remote side
                 meta["copyrev"] = hex(manifest1[cp])
             elif fp1 != nullid: # copied on local side, reversed
                 meta["copyrev"] = hex(manifest2[cp])
                 fp2 = fp1
             elif cp in manifest2: # directory rename on local side
                 meta["copyrev"] = hex(manifest2[cp])
             else: # directory rename on remote side
                 meta["copyrev"] = hex(manifest1[cp])
             self.ui.debug(_(" %s: copy %s:%s\n") %
                           (fn, cp, meta["copyrev"]))
             fp1 = nullid
         elif fp2 != nullid:
             # is one parent an ancestor of the other?
             fpa = fl.ancestor(fp1, fp2)
             if fpa == fp1:
                 fp1, fp2 = fp2, nullid
             elif fpa == fp2:
                 fp2 = nullid
 
         # is the file unmodified from the parent? report existing entry
         if fp2 == nullid and not fl.cmp(fp1, t) and not meta:
             return fp1
 
         changelist.append(fn)
         return fl.add(t, meta, tr, linkrev, fp1, fp2)
 
     def rawcommit(self, files, text, user, date, p1=None, p2=None, extra={}):
         if p1 is None:
             p1, p2 = self.dirstate.parents()
         return self.commit(files=files, text=text, user=user, date=date,
                            p1=p1, p2=p2, extra=extra, empty_ok=True)
 
     def commit(self, files=None, text="", user=None, date=None,
                match=None, force=False, force_editor=False,
                p1=None, p2=None, extra={}, empty_ok=False):
         wlock = lock = None
         if files:
             files = util.unique(files)
         try:
             wlock = self.wlock()
             lock = self.lock()
             use_dirstate = (p1 is None) # not rawcommit
 
             if use_dirstate:
                 p1, p2 = self.dirstate.parents()
                 update_dirstate = True
 
                 if (not force and p2 != nullid and
                     (match and (match.files() or match.anypats()))):
                     raise util.Abort(_('cannot partially commit a merge '
                                        '(do not specify files or patterns)'))
 
                 if files:
                     modified, removed = [], []
                     for f in files:
                         s = self.dirstate[f]
                         if s in 'nma':
                             modified.append(f)
                         elif s == 'r':
                             removed.append(f)
                         else:
                             self.ui.warn(_("%s not tracked!\n") % f)
                     changes = [modified, [], removed, [], []]
                 else:
                     changes = self.status(match=match)
             else:
                 p1, p2 = p1, p2 or nullid
                 update_dirstate = (self.dirstate.parents()[0] == p1)
                 changes = [files, [], [], [], []]
 
             wctx = context.workingctx(self, (p1, p2), text, user, date,
                                       extra, changes)
             return self._commitctx(wctx, force, force_editor, empty_ok,
                                    use_dirstate, update_dirstate)
         finally:
             del lock, wlock
 
     def commitctx(self, ctx):
         wlock = lock = None
         try:
             wlock = self.wlock()
             lock = self.lock()
             return self._commitctx(ctx, force=True, force_editor=False,
                                    empty_ok=True, use_dirstate=False,
                                    update_dirstate=False)
         finally:
             del lock, wlock
 
     def _commitctx(self, wctx, force=False, force_editor=False, empty_ok=False,
                   use_dirstate=True, update_dirstate=True):
         tr = None
         valid = 0 # don't save the dirstate if this isn't set
         try:
             commit = wctx.modified() + wctx.added()
             remove = wctx.removed()
             extra = wctx.extra().copy()
             branchname = extra['branch']
             user = wctx.user()
             text = wctx.description()
 
             p1, p2 = [p.node() for p in wctx.parents()]
             c1 = self.changelog.read(p1)
             c2 = self.changelog.read(p2)
             m1 = self.manifest.read(c1[0]).copy()
             m2 = self.manifest.read(c2[0])
 
             if use_dirstate:
                 oldname = c1[5].get("branch") # stored in UTF-8
                 if (not commit and not remove and not force and p2 == nullid
                     and branchname == oldname):
                     self.ui.status(_("nothing changed\n"))
                     return None
 
             xp1 = hex(p1)
             if p2 == nullid: xp2 = ''
             else: xp2 = hex(p2)
 
             self.hook("precommit", throw=True, parent1=xp1, parent2=xp2)
 
             tr = self.transaction()
             trp = weakref.proxy(tr)
 
             # check in files
             new = {}
             changed = []
             linkrev = self.changelog.count()
             commit.sort()
             for f in commit:
                 self.ui.note(f + "\n")
                 try:
                     fctx = wctx.filectx(f)
                     newflags = fctx.flags()
                     new[f] = self.filecommit(fctx, m1, m2, linkrev, trp, changed)
                     if ((not changed or changed[-1] != f) and
                         m2.get(f) != new[f]):
                         # mention the file in the changelog if some
                         # flag changed, even if there was no content
                         # change.
                         if m1.flags(f) != newflags:
                             changed.append(f)
                     m1.set(f, newflags)
                     if use_dirstate:
                         self.dirstate.normal(f)
 
                 except (OSError, IOError):
                     if use_dirstate:
                         self.ui.warn(_("trouble committing %s!\n") % f)
                         raise
                     else:
                         remove.append(f)
 
             # update manifest
             m1.update(new)
             remove.sort()
             removed = []
 
             for f in remove:
                 if f in m1:
                     del m1[f]
                     removed.append(f)
                 elif f in m2:
                     removed.append(f)
             mn = self.manifest.add(m1, trp, linkrev, c1[0], c2[0],
                                    (new, removed))
 
             # add changeset
             if (not empty_ok and not text) or force_editor:
                 edittext = []
                 if text:
                     edittext.append(text)
                 edittext.append("")
                 edittext.append(_("HG: Enter commit message."
                                   "  Lines beginning with 'HG:' are removed."))
                 edittext.append("HG: --")
                 edittext.append("HG: user: %s" % user)
                 if p2 != nullid:
                     edittext.append("HG: branch merge")
                 if branchname:
                     edittext.append("HG: branch '%s'" % util.tolocal(branchname))
                 edittext.extend(["HG: changed %s" % f for f in changed])
                 edittext.extend(["HG: removed %s" % f for f in removed])
                 if not changed and not remove:
                     edittext.append("HG: no files changed")
                 edittext.append("")
                 # run editor in the repository root
                 olddir = os.getcwd()
                 os.chdir(self.root)
                 text = self.ui.edit("\n".join(edittext), user)
                 os.chdir(olddir)
 
             lines = [line.rstrip() for line in text.rstrip().splitlines()]
             while lines and not lines[0]:
                 del lines[0]
             if not lines and use_dirstate:
                 raise util.Abort(_("empty commit message"))
             text = '\n'.join(lines)
 
             n = self.changelog.add(mn, changed + removed, text, trp, p1, p2,
                                    user, wctx.date(), extra)
             self.hook('pretxncommit', throw=True, node=hex(n), parent1=xp1,
                       parent2=xp2)
             tr.close()
 
             if self.branchcache:
                 self.branchtags()
 
             if use_dirstate or update_dirstate:
                 self.dirstate.setparents(n)
                 if use_dirstate:
                     for f in removed:
                         self.dirstate.forget(f)
             valid = 1 # our dirstate updates are complete
 
             self.hook("commit", node=hex(n), parent1=xp1, parent2=xp2)
             return n
         finally:
             if not valid: # don't save our updated dirstate
                 self.dirstate.invalidate()
             del tr
 
     def walk(self, match, node=None):
         '''
         walk recursively through the directory tree or a given
         changeset, finding all files matched by the match
         function
         '''
 
         if node:
             fdict = dict.fromkeys(match.files())
             # for dirstate.walk, files=['.'] means "walk the whole tree".
             # follow that here, too
             fdict.pop('.', None)
             mdict = self.manifest.read(self.changelog.read(node)[0])
             mfiles = mdict.keys()
             mfiles.sort()
             for fn in mfiles:
                 for ffn in fdict:
                     # match if the file is the exact name or a directory
                     if ffn == fn or fn.startswith("%s/" % ffn):
                         del fdict[ffn]
                         break
                 if match(fn):
                     yield fn
             ffiles = fdict.keys()
             ffiles.sort()
             for fn in ffiles:
                 if match.bad(fn, 'No such file in rev ' + short(node)) \
                         and match(fn):
                     yield fn
         else:
             for fn in self.dirstate.walk(match):
                 yield fn
 
     def status(self, node1=None, node2=None, match=None,
                list_ignored=False, list_clean=False, list_unknown=True):
         """return status of files between two nodes or node and working directory
 
         If node1 is None, use the first dirstate parent instead.
         If node2 is None, compare node1 with working directory.
         """
 
         def fcmp(fn, getnode):
             t1 = self.wread(fn)
             return self.file(fn).cmp(getnode(fn), t1)
 
         def mfmatches(node):
             change = self.changelog.read(node)
             mf = self.manifest.read(change[0]).copy()
             for fn in mf.keys():
                 if not match(fn):
                     del mf[fn]
             return mf
 
         if not match:
             match = match_.always(self.root, self.getcwd())
 
         modified, added, removed, deleted, unknown = [], [], [], [], []
         ignored, clean = [], []
 
         compareworking = False
         if not node1 or (not node2 and node1 == self.dirstate.parents()[0]):
             compareworking = True
 
         if not compareworking:
             # read the manifest from node1 before the manifest from node2,
             # so that we'll hit the manifest cache if we're going through
             # all the revisions in parent->child order.
             mf1 = mfmatches(node1)
 
         # are we comparing the working directory?
         if not node2:
             (lookup, modified, added, removed, deleted, unknown,
              ignored, clean) = self.dirstate.status(match, list_ignored,
                                                     list_clean, list_unknown)
             # are we comparing working dir against its parent?
             if compareworking:
                 if lookup:
                     fixup = []
                     # do a full compare of any files that might have changed
-                    ctx = self.changectx('')
+                    ctx = self['.']
                     ff = self.dirstate.flagfunc(ctx.flags)
                     for f in lookup:
                         if (f not in ctx or ff(f) != ctx.flags(f)
                             or ctx[f].cmp(self.wread(f))):
                             modified.append(f)
                         else:
                             fixup.append(f)
                             if list_clean:
                                 clean.append(f)
 
                     # update dirstate for files that are actually clean
                     if fixup:
                         wlock = None
                         try:
                             try:
                                 wlock = self.wlock(False)
                             except lock.LockException:
                                 pass
                             if wlock:
                                 for f in fixup:
                                     self.dirstate.normal(f)
                         finally:
                             del wlock
             else:
                 # we are comparing working dir against non-parent
                 # generate a pseudo-manifest for the working dir
                 # XXX: create it in dirstate.py ?
                 mf2 = mfmatches(self.dirstate.parents()[0])
                 ff = self.dirstate.flagfunc(mf2.flags)
                 for f in lookup + modified + added:
                     mf2[f] = ""
                     mf2.set(f, ff(f))
                 for f in removed:
                     if f in mf2:
                         del mf2[f]
 
         else:
             # we are comparing two revisions
             mf2 = mfmatches(node2)
 
         if not compareworking:
             # flush lists from dirstate before comparing manifests
             modified, added, clean = [], [], []
 
             # make sure to sort the files so we talk to the disk in a
             # reasonable order
             mf2keys = mf2.keys()
             mf2keys.sort()
             getnode = lambda fn: mf1.get(fn, nullid)
             for fn in mf2keys:
                 if fn in mf1:
                     if (mf1.flags(fn) != mf2.flags(fn) or
                         (mf1[fn] != mf2[fn] and
                          (mf2[fn] != "" or fcmp(fn, getnode)))):
                         modified.append(fn)
                     elif list_clean:
                         clean.append(fn)
                     del mf1[fn]
                 else:
                     added.append(fn)
 
             removed = mf1.keys()
 
         # sort and return results:
         for l in modified, added, removed, deleted, unknown, ignored, clean:
             l.sort()
         return (modified, added, removed, deleted, unknown, ignored, clean)
 
     def add(self, list):
         wlock = self.wlock()
         try:
             rejected = []
             for f in list:
                 p = self.wjoin(f)
                 try:
                     st = os.lstat(p)
                 except:
                     self.ui.warn(_("%s does not exist!\n") % f)
                     rejected.append(f)
                     continue
                 if st.st_size > 10000000:
                     self.ui.warn(_("%s: files over 10MB may cause memory and"
                                    " performance problems\n"
                                    "(use 'hg revert %s' to unadd the file)\n")
                                    % (f, f))
                 if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
                     self.ui.warn(_("%s not added: only files and symlinks "
                                    "supported currently\n") % f)
                     rejected.append(p)
                 elif self.dirstate[f] in 'amn':
                     self.ui.warn(_("%s already tracked!\n") % f)
                 elif self.dirstate[f] == 'r':
                     self.dirstate.normallookup(f)
                 else:
                     self.dirstate.add(f)
             return rejected
         finally:
             del wlock
 
     def forget(self, list):
         wlock = self.wlock()
         try:
             for f in list:
                 if self.dirstate[f] != 'a':
                     self.ui.warn(_("%s not added!\n") % f)
                 else:
                     self.dirstate.forget(f)
         finally:
             del wlock
 
     def remove(self, list, unlink=False):
         wlock = None
         try:
             if unlink:
                 for f in list:
                     try:
                         util.unlink(self.wjoin(f))
                     except OSError, inst:
                         if inst.errno != errno.ENOENT:
                             raise
             wlock = self.wlock()
             for f in list:
                 if unlink and os.path.exists(self.wjoin(f)):
                     self.ui.warn(_("%s still exists!\n") % f)
                 elif self.dirstate[f] == 'a':
                     self.dirstate.forget(f)
                 elif f not in self.dirstate:
                     self.ui.warn(_("%s not tracked!\n") % f)
                 else:
                     self.dirstate.remove(f)
         finally:
             del wlock
 
     def undelete(self, list):
         wlock = None
         try:
             manifests = [self.manifest.read(self.changelog.read(p)[0])
                          for p in self.dirstate.parents() if p != nullid]
             wlock = self.wlock()
             for f in list:
                 if self.dirstate[f] != 'r':
                     self.ui.warn("%s not removed!\n" % f)
                 else:
                     m = f in manifests[0] and manifests[0] or manifests[1]
                     t = self.file(f).read(m[f])
                     self.wwrite(f, t, m.flags(f))
                     self.dirstate.normal(f)
         finally:
             del wlock
 
     def copy(self, source, dest):
         wlock = None
         try:
             p = self.wjoin(dest)
             if not (os.path.exists(p) or os.path.islink(p)):
                 self.ui.warn(_("%s does not exist!\n") % dest)
             elif not (os.path.isfile(p) or os.path.islink(p)):
                 self.ui.warn(_("copy failed: %s is not a file or a "
                                "symbolic link\n") % dest)
             else:
                 wlock = self.wlock()
                 if dest not in self.dirstate:
                     self.dirstate.add(dest)
                 self.dirstate.copy(source, dest)
         finally:
             del wlock
 
     def heads(self, start=None):
         heads = self.changelog.heads(start)
         # sort the output in rev descending order
         heads = [(-self.changelog.rev(h), h) for h in heads]
         heads.sort()
         return [n for (r, n) in heads]
 
     def branchheads(self, branch=None, start=None):
-        branch = branch is None and self.changectx(None).branch() or branch
+        if branch is None:
+            branch = self[None].branch()
         branches = self.branchtags()
         if branch not in branches:
             return []
         # The basic algorithm is this:
         #
         # Start from the branch tip since there are no later revisions that can
         # possibly be in this branch, and the tip is a guaranteed head.
         #
         # Remember the tip's parents as the first ancestors, since these by
         # definition are not heads.
         #
         # Step backwards from the brach tip through all the revisions. We are
         # guaranteed by the rules of Mercurial that we will now be visiting the
         # nodes in reverse topological order (children before parents).
         #
         # If a revision is one of the ancestors of a head then we can toss it
         # out of the ancestors set (we've already found it and won't be
         # visiting it again) and put its parents in the ancestors set.
         #
         # Otherwise, if a revision is in the branch it's another head, since it
         # wasn't in the ancestor list of an existing head.  So add it to the
         # head list, and add its parents to the ancestor list.
         #
         # If it is not in the branch ignore it.
         #
         # Once we have a list of heads, use nodesbetween to filter out all the
         # heads that cannot be reached from startrev.  There may be a more
         # efficient way to do this as part of the previous algorithm.
 
         set = util.set
         heads = [self.changelog.rev(branches[branch])]
         # Don't care if ancestors contains nullrev or not.
         ancestors = set(self.changelog.parentrevs(heads[0]))
         for rev in xrange(heads[0] - 1, nullrev, -1):
             if rev in ancestors:
                 ancestors.update(self.changelog.parentrevs(rev))
                 ancestors.remove(rev)
-            elif self.changectx(rev).branch() == branch:
+            elif self[rev].branch() == branch:
                 heads.append(rev)
                 ancestors.update(self.changelog.parentrevs(rev))
         heads = [self.changelog.node(rev) for rev in heads]
         if start is not None:
             heads = self.changelog.nodesbetween([start], heads)[2]
         return heads
 
     def branches(self, nodes):
         if not nodes:
             nodes = [self.changelog.tip()]
         b = []
         for n in nodes:
             t = n
             while 1:
                 p = self.changelog.parents(n)
                 if p[1] != nullid or p[0] == nullid:
                     b.append((t, n, p[0], p[1]))
                     break
                 n = p[0]
         return b
 
     def between(self, pairs):
         r = []
 
         for top, bottom in pairs:
             n, l, i = top, [], 0
             f = 1
 
             while n != bottom:
                 p = self.changelog.parents(n)[0]
                 if i == f:
                     l.append(n)
                     f = f * 2
                 n = p
                 i += 1
 
             r.append(l)
 
         return r
 
     def findincoming(self, remote, base=None, heads=None, force=False):
         """Return list of roots of the subsets of missing nodes from remote
 
         If base dict is specified, assume that these nodes and their parents
         exist on the remote side and that no child of a node of base exists
         in both remote and self.
         Furthermore base will be updated to include the nodes that exists
         in self and remote but no children exists in self and remote.
         If a list of heads is specified, return only nodes which are heads
         or ancestors of these heads.
 
         All the ancestors of base are in self and in remote.
         All the descendants of the list returned are missing in self.
         (and so we know that the rest of the nodes are missing in remote, see
         outgoing)
         """
         m = self.changelog.nodemap
         search = []
         fetch = {}
         seen = {}
         seenbranch = {}
         if base == None:
             base = {}
 
         if not heads:
             heads = remote.heads()
 
         if self.changelog.tip() == nullid:
             base[nullid] = 1
             if heads != [nullid]:
                 return [nullid]
             return []
 
         # assume we're closer to the tip than the root
         # and start by examining the heads
         self.ui.status(_("searching for changes\n"))
 
         unknown = []
         for h in heads:
             if h not in m:
                 unknown.append(h)
             else:
                 base[h] = 1
 
         if not unknown:
             return []
 
         req = dict.fromkeys(unknown)
         reqcnt = 0
 
         # search through remote branches
         # a 'branch' here is a linear segment of history, with four parts:
         # head, root, first parent, second parent
         # (a branch always has two parents (or none) by definition)
         unknown = remote.branches(unknown)
         while unknown:
             r = []
             while unknown:
                 n = unknown.pop(0)
                 if n[0] in seen:
                     continue
 
                 self.ui.debug(_("examining %s:%s\n")
                               % (short(n[0]), short(n[1])))
                 if n[0] == nullid: # found the end of the branch
                     pass
                 elif n in seenbranch:
                     self.ui.debug(_("branch already found\n"))
                     continue
                 elif n[1] and n[1] in m: # do we know the base?
                     self.ui.debug(_("found incomplete branch %s:%s\n")
                                   % (short(n[0]), short(n[1])))
                     search.append(n) # schedule branch range for scanning
                     seenbranch[n] = 1
                 else:
                     if n[1] not in seen and n[1] not in fetch:
                         if n[2] in m and n[3] in m:
                             self.ui.debug(_("found new changeset %s\n") %
                                           short(n[1]))
                             fetch[n[1]] = 1 # earliest unknown
                         for p in n[2:4]:
                             if p in m:
                                 base[p] = 1 # latest known
 
                     for p in n[2:4]:
                         if p not in req and p not in m:
                             r.append(p)
                             req[p] = 1
                 seen[n[0]] = 1
 
             if r:
                 reqcnt += 1
                 self.ui.debug(_("request %d: %s\n") %
                             (reqcnt, " ".join(map(short, r))))
                 for p in xrange(0, len(r), 10):
                     for b in remote.branches(r[p:p+10]):
                         self.ui.debug(_("received %s:%s\n") %
                                       (short(b[0]), short(b[1])))
                         unknown.append(b)
 
         # do binary search on the branches we found
         while search:
             n = search.pop(0)
             reqcnt += 1
             l = remote.between([(n[0], n[1])])[0]
             l.append(n[1])
             p = n[0]
             f = 1
             for i in l:
                 self.ui.debug(_("narrowing %d:%d %s\n") % (f, len(l), short(i)))
                 if i in m:
                     if f <= 2:
                         self.ui.debug(_("found new branch changeset %s\n") %
                                           short(p))
                         fetch[p] = 1
                         base[i] = 1
                     else:
                         self.ui.debug(_("narrowed branch search to %s:%s\n")
                                       % (short(p), short(i)))
                         search.append((p, i))
                     break
                 p, f = i, f * 2
 
         # sanity check our fetch list
         for f in fetch.keys():
             if f in m:
                 raise repo.RepoError(_("already have changeset ") + short(f[:4]))
 
         if base.keys() == [nullid]:
             if force:
                 self.ui.warn(_("warning: repository is unrelated\n"))
             else:
                 raise util.Abort(_("repository is unrelated"))
 
         self.ui.debug(_("found new changesets starting at ") +
                      " ".join([short(f) for f in fetch]) + "\n")
 
         self.ui.debug(_("%d total queries\n") % reqcnt)
 
         return fetch.keys()
 
     def findoutgoing(self, remote, base=None, heads=None, force=False):
         """Return list of nodes that are roots of subsets not in remote
 
         If base dict is specified, assume that these nodes and their parents
         exist on the remote side.
         If a list of heads is specified, return only nodes which are heads
         or ancestors of these heads, and return a second element which
         contains all remote heads which get new children.
         """
         if base == None:
             base = {}
             self.findincoming(remote, base, heads, force=force)
 
         self.ui.debug(_("common changesets up to ")
                       + " ".join(map(short, base.keys())) + "\n")
 
         remain = dict.fromkeys(self.changelog.nodemap)
 
         # prune everything remote has from the tree
         del remain[nullid]
         remove = base.keys()
         while remove:
             n = remove.pop(0)
             if n in remain:
                 del remain[n]
                 for p in self.changelog.parents(n):
                     remove.append(p)
 
         # find every node whose parents have been pruned
         subset = []
         # find every remote head that will get new children
         updated_heads = {}
         for n in remain:
             p1, p2 = self.changelog.parents(n)
             if p1 not in remain and p2 not in remain:
                 subset.append(n)
             if heads:
                 if p1 in heads:
                     updated_heads[p1] = True
                 if p2 in heads:
                     updated_heads[p2] = True
 
         # this is the set of all roots we have to push
         if heads:
             return subset, updated_heads.keys()
         else:
             return subset
 
     def pull(self, remote, heads=None, force=False):
         lock = self.lock()
         try:
             fetch = self.findincoming(remote, heads=heads, force=force)
             if fetch == [nullid]:
                 self.ui.status(_("requesting all changes\n"))
 
             if not fetch:
                 self.ui.status(_("no changes found\n"))
                 return 0
 
             if heads is None:
                 cg = remote.changegroup(fetch, 'pull')
             else:
                 if 'changegroupsubset' not in remote.capabilities:
                     raise util.Abort(_("Partial pull cannot be done because other repository doesn't support changegroupsubset."))
                 cg = remote.changegroupsubset(fetch, heads, 'pull')
             return self.addchangegroup(cg, 'pull', remote.url())
         finally:
             del lock
 
     def push(self, remote, force=False, revs=None):
         # there are two ways to push to remote repo:
         #
         # addchangegroup assumes local user can lock remote
         # repo (local filesystem, old ssh servers).
         #
         # unbundle assumes local user cannot lock remote repo (new ssh
         # servers, http servers).
 
         if remote.capable('unbundle'):
             return self.push_unbundle(remote, force, revs)
         return self.push_addchangegroup(remote, force, revs)
 
     def prepush(self, remote, force, revs):
         base = {}
         remote_heads = remote.heads()
         inc = self.findincoming(remote, base, remote_heads, force=force)
 
         update, updated_heads = self.findoutgoing(remote, base, remote_heads)
         if revs is not None:
             msng_cl, bases, heads = self.changelog.nodesbetween(update, revs)
         else:
             bases, heads = update, self.changelog.heads()
 
         if not bases:
             self.ui.status(_("no changes found\n"))
             return None, 1
         elif not force:
             # check if we're creating new remote heads
             # to be a remote head after push, node must be either
             # - unknown locally
             # - a local outgoing head descended from update
             # - a remote head that's known locally and not
             #   ancestral to an outgoing head
 
             warn = 0
 
             if remote_heads == [nullid]:
                 warn = 0
             elif not revs and len(heads) > len(remote_heads):
                 warn = 1
             else:
                 newheads = list(heads)
                 for r in remote_heads:
                     if r in self.changelog.nodemap:
                         desc = self.changelog.heads(r, heads)
                         l = [h for h in heads if h in desc]
                         if not l:
                             newheads.append(r)
                     else:
                         newheads.append(r)
                 if len(newheads) > len(remote_heads):
                     warn = 1
 
             if warn:
                 self.ui.warn(_("abort: push creates new remote heads!\n"))
                 self.ui.status(_("(did you forget to merge?"
                                  " use push -f to force)\n"))
                 return None, 0
             elif inc:
                 self.ui.warn(_("note: unsynced remote changes!\n"))
 
 
         if revs is None:
             cg = self.changegroup(update, 'push')
         else:
             cg = self.changegroupsubset(update, revs, 'push')
         return cg, remote_heads
 
     def push_addchangegroup(self, remote, force, revs):
         lock = remote.lock()
         try:
             ret = self.prepush(remote, force, revs)
             if ret[0] is not None:
                 cg, remote_heads = ret
                 return remote.addchangegroup(cg, 'push', self.url())
             return ret[1]
         finally:
             del lock
 
     def push_unbundle(self, remote, force, revs):
         # local repo finds heads on server, finds out what revs it
         # must push.  once revs transferred, if server finds it has
         # different heads (someone else won commit/push race), server
         # aborts.
 
         ret = self.prepush(remote, force, revs)
         if ret[0] is not None:
             cg, remote_heads = ret
             if force: remote_heads = ['force']
             return remote.unbundle(cg, remote_heads, 'push')
         return ret[1]
 
     def changegroupinfo(self, nodes, source):
         if self.ui.verbose or source == 'bundle':
             self.ui.status(_("%d changesets found\n") % len(nodes))
         if self.ui.debugflag:
             self.ui.debug(_("List of changesets:\n"))
             for node in nodes:
                 self.ui.debug("%s\n" % hex(node))
 
     def changegroupsubset(self, bases, heads, source, extranodes=None):
         """This function generates a changegroup consisting of all the nodes
         that are descendents of any of the bases, and ancestors of any of
         the heads.
 
         It is fairly complex as determining which filenodes and which
         manifest nodes need to be included for the changeset to be complete
         is non-trivial.
 
         Another wrinkle is doing the reverse, figuring out which changeset in
         the changegroup a particular filenode or manifestnode belongs to.
 
         The caller can specify some nodes that must be included in the
         changegroup using the extranodes argument.  It should be a dict
         where the keys are the filenames (or 1 for the manifest), and the
         values are lists of (node, linknode) tuples, where node is a wanted
         node and linknode is the changelog node that should be transmitted as
         the linkrev.
         """
 
         self.hook('preoutgoing', throw=True, source=source)
 
         # Set up some initial variables
         # Make it easy to refer to self.changelog
         cl = self.changelog
         # msng is short for missing - compute the list of changesets in this
         # changegroup.
         msng_cl_lst, bases, heads = cl.nodesbetween(bases, heads)
         self.changegroupinfo(msng_cl_lst, source)
         # Some bases may turn out to be superfluous, and some heads may be
         # too.  nodesbetween will return the minimal set of bases and heads
         # necessary to re-create the changegroup.
 
         # Known heads are the list of heads that it is assumed the recipient
         # of this changegroup will know about.
         knownheads = {}
         # We assume that all parents of bases are known heads.
         for n in bases:
             for p in cl.parents(n):
                 if p != nullid:
                     knownheads[p] = 1
         knownheads = knownheads.keys()
         if knownheads:
             # Now that we know what heads are known, we can compute which
             # changesets are known.  The recipient must know about all
             # changesets required to reach the known heads from the null
             # changeset.
             has_cl_set, junk, junk = cl.nodesbetween(None, knownheads)
             junk = None
             # Transform the list into an ersatz set.
             has_cl_set = dict.fromkeys(has_cl_set)
         else:
             # If there were no known heads, the recipient cannot be assumed to
             # know about any changesets.
             has_cl_set = {}
 
         # Make it easy to refer to self.manifest
         mnfst = self.manifest
         # We don't know which manifests are missing yet
         msng_mnfst_set = {}
         # Nor do we know which filenodes are missing.
         msng_filenode_set = {}
 
         junk = mnfst.index[mnfst.count() - 1] # Get around a bug in lazyindex
         junk = None
 
         # A changeset always belongs to itself, so the changenode lookup
         # function for a changenode is identity.
         def identity(x):
             return x
 
         # A function generating function.  Sets up an environment for the
         # inner function.
         def cmp_by_rev_func(revlog):
             # Compare two nodes by their revision number in the environment's
             # revision history.  Since the revision number both represents the
             # most efficient order to read the nodes in, and represents a
             # topological sorting of the nodes, this function is often useful.
             def cmp_by_rev(a, b):
                 return cmp(revlog.rev(a), revlog.rev(b))
             return cmp_by_rev
 
         # If we determine that a particular file or manifest node must be a
         # node that the recipient of the changegroup will already have, we can
         # also assume the recipient will have all the parents.  This function
         # prunes them from the set of missing nodes.
         def prune_parents(revlog, hasset, msngset):
             haslst = hasset.keys()
             haslst.sort(cmp_by_rev_func(revlog))
             for node in haslst:
                 parentlst = [p for p in revlog.parents(node) if p != nullid]
                 while parentlst:
                     n = parentlst.pop()
                     if n not in hasset:
                         hasset[n] = 1
                         p = [p for p in revlog.parents(n) if p != nullid]
                         parentlst.extend(p)
             for n in hasset:
                 msngset.pop(n, None)
 
         # This is a function generating function used to set up an environment
         # for the inner function to execute in.
         def manifest_and_file_collector(changedfileset):
             # This is an information gathering function that gathers
             # information from each changeset node that goes out as part of
             # the changegroup.  The information gathered is a list of which
             # manifest nodes are potentially required (the recipient may
             # already have them) and total list of all files which were
             # changed in any changeset in the changegroup.
             #
             # We also remember the first changenode we saw any manifest
             # referenced by so we can later determine which changenode 'owns'
             # the manifest.
             def collect_manifests_and_files(clnode):
                 c = cl.read(clnode)
                 for f in c[3]:
                     # This is to make sure we only have one instance of each
                     # filename string for each filename.
                     changedfileset.setdefault(f, f)
                 msng_mnfst_set.setdefault(c[0], clnode)
             return collect_manifests_and_files
 
         # Figure out which manifest nodes (of the ones we think might be part
         # of the changegroup) the recipient must know about and remove them
         # from the changegroup.
         def prune_manifests():
             has_mnfst_set = {}
             for n in msng_mnfst_set:
                 # If a 'missing' manifest thinks it belongs to a changenode
                 # the recipient is assumed to have, obviously the recipient
                 # must have that manifest.
                 linknode = cl.node(mnfst.linkrev(n))
                 if linknode in has_cl_set:
                     has_mnfst_set[n] = 1
             prune_parents(mnfst, has_mnfst_set, msng_mnfst_set)
 
         # Use the information collected in collect_manifests_and_files to say
         # which changenode any manifestnode belongs to.
         def lookup_manifest_link(mnfstnode):
             return msng_mnfst_set[mnfstnode]
 
         # A function generating function that sets up the initial environment
         # the inner function.
         def filenode_collector(changedfiles):
             next_rev = [0]
             # This gathers information from each manifestnode included in the
             # changegroup about which filenodes the manifest node references
             # so we can include those in the changegroup too.
             #
             # It also remembers which changenode each filenode belongs to.  It
             # does this by assuming the a filenode belongs to the changenode
             # the first manifest that references it belongs to.
             def collect_msng_filenodes(mnfstnode):
                 r = mnfst.rev(mnfstnode)
                 if r == next_rev[0]:
                     # If the last rev we looked at was the one just previous,
                     # we only need to see a diff.
                     deltamf = mnfst.readdelta(mnfstnode)
                     # For each line in the delta
                     for f, fnode in deltamf.items():
                         f = changedfiles.get(f, None)
                         # And if the file is in the list of files we care
                         # about.
                         if f is not None:
                             # Get the changenode this manifest belongs to
                             clnode = msng_mnfst_set[mnfstnode]
                             # Create the set of filenodes for the file if
                             # there isn't one already.
                             ndset = msng_filenode_set.setdefault(f, {})
                             # And set the filenode's changelog node to the
                             # manifest's if it hasn't been set already.
                             ndset.setdefault(fnode, clnode)
                 else:
                     # Otherwise we need a full manifest.
                     m = mnfst.read(mnfstnode)
                     # For every file in we care about.
                     for f in changedfiles:
                         fnode = m.get(f, None)
                         # If it's in the manifest
                         if fnode is not None:
                             # See comments above.
                             clnode = msng_mnfst_set[mnfstnode]
                             ndset = msng_filenode_set.setdefault(f, {})
                             ndset.setdefault(fnode, clnode)
                 # Remember the revision we hope to see next.
                 next_rev[0] = r + 1
             return collect_msng_filenodes
 
         # We have a list of filenodes we think we need for a file, lets remove
         # all those we now the recipient must have.
         def prune_filenodes(f, filerevlog):
             msngset = msng_filenode_set[f]
             hasset = {}
             # If a 'missing' filenode thinks it belongs to a changenode we
             # assume the recipient must have, then the recipient must have
             # that filenode.
             for n in msngset:
                 clnode = cl.node(filerevlog.linkrev(n))
                 if clnode in has_cl_set:
                     hasset[n] = 1
             prune_parents(filerevlog, hasset, msngset)
 
         # A function generator function that sets up the a context for the
         # inner function.
         def lookup_filenode_link_func(fname):
             msngset = msng_filenode_set[fname]
             # Lookup the changenode the filenode belongs to.
             def lookup_filenode_link(fnode):
                 return msngset[fnode]
             return lookup_filenode_link
 
         # Add the nodes that were explicitly requested.
         def add_extra_nodes(name, nodes):
             if not extranodes or name not in extranodes:
                 return
 
             for node, linknode in extranodes[name]:
                 if node not in nodes:
                     nodes[node] = linknode
 
         # Now that we have all theses utility functions to help out and
         # logically divide up the task, generate the group.
         def gengroup():
             # The set of changed files starts empty.
             changedfiles = {}
             # Create a changenode group generator that will call our functions
             # back to lookup the owning changenode and collect information.
             group = cl.group(msng_cl_lst, identity,
                              manifest_and_file_collector(changedfiles))
             for chnk in group:
                 yield chnk
 
             # The list of manifests has been collected by the generator
             # calling our functions back.
             prune_manifests()
             add_extra_nodes(1, msng_mnfst_set)
             msng_mnfst_lst = msng_mnfst_set.keys()
             # Sort the manifestnodes by revision number.
             msng_mnfst_lst.sort(cmp_by_rev_func(mnfst))
             # Create a generator for the manifestnodes that calls our lookup
             # and data collection functions back.
             group = mnfst.group(msng_mnfst_lst, lookup_manifest_link,
                                 filenode_collector(changedfiles))
             for chnk in group:
                 yield chnk
 
             # These are no longer needed, dereference and toss the memory for
             # them.
             msng_mnfst_lst = None
             msng_mnfst_set.clear()
 
             if extranodes:
                 for fname in extranodes:
                     if isinstance(fname, int):
                         continue
                     add_extra_nodes(fname,
                                     msng_filenode_set.setdefault(fname, {}))
                     changedfiles[fname] = 1
             changedfiles = changedfiles.keys()
             changedfiles.sort()
             # Go through all our files in order sorted by name.
             for fname in changedfiles:
                 filerevlog = self.file(fname)
                 if filerevlog.count() == 0:
                     raise util.Abort(_("empty or missing revlog for %s") % fname)
                 # Toss out the filenodes that the recipient isn't really
                 # missing.
                 if fname in msng_filenode_set:
                     prune_filenodes(fname, filerevlog)
                     msng_filenode_lst = msng_filenode_set[fname].keys()
                 else:
                     msng_filenode_lst = []
                 # If any filenodes are left, generate the group for them,
                 # otherwise don't bother.
                 if len(msng_filenode_lst) > 0:
                     yield changegroup.chunkheader(len(fname))
                     yield fname
                     # Sort the filenodes by their revision #
                     msng_filenode_lst.sort(cmp_by_rev_func(filerevlog))
                     # Create a group generator and only pass in a changenode
                     # lookup function as we need to collect no information
                     # from filenodes.
                     group = filerevlog.group(msng_filenode_lst,
                                              lookup_filenode_link_func(fname))
                     for chnk in group:
                         yield chnk
                 if fname in msng_filenode_set:
                     # Don't need this anymore, toss it to free memory.
                     del msng_filenode_set[fname]
             # Signal that no more groups are left.
             yield changegroup.closechunk()
 
             if msng_cl_lst:
                 self.hook('outgoing', node=hex(msng_cl_lst[0]), source=source)
 
         return util.chunkbuffer(gengroup())
 
     def changegroup(self, basenodes, source):
         """Generate a changegroup of all nodes that we have that a recipient
         doesn't.
 
         This is much easier than the previous function as we can assume that
         the recipient has any changenode we aren't sending them."""
 
         self.hook('preoutgoing', throw=True, source=source)
 
         cl = self.changelog
         nodes = cl.nodesbetween(basenodes, None)[0]
         revset = dict.fromkeys([cl.rev(n) for n in nodes])
         self.changegroupinfo(nodes, source)
 
         def identity(x):
             return x
 
         def gennodelst(revlog):
             for r in xrange(0, revlog.count()):
                 n = revlog.node(r)
                 if revlog.linkrev(n) in revset:
                     yield n
 
         def changed_file_collector(changedfileset):
             def collect_changed_files(clnode):
                 c = cl.read(clnode)
                 for fname in c[3]:
                     changedfileset[fname] = 1
             return collect_changed_files
 
         def lookuprevlink_func(revlog):
             def lookuprevlink(n):
                 return cl.node(revlog.linkrev(n))
             return lookuprevlink
 
         def gengroup():
             # construct a list of all changed files
             changedfiles = {}
 
             for chnk in cl.group(nodes, identity,
                                  changed_file_collector(changedfiles)):
                 yield chnk
             changedfiles = changedfiles.keys()
             changedfiles.sort()
 
             mnfst = self.manifest
             nodeiter = gennodelst(mnfst)
             for chnk in mnfst.group(nodeiter, lookuprevlink_func(mnfst)):
                 yield chnk
 
             for fname in changedfiles:
                 filerevlog = self.file(fname)
                 if filerevlog.count() == 0:
                     raise util.Abort(_("empty or missing revlog for %s") % fname)
                 nodeiter = gennodelst(filerevlog)
                 nodeiter = list(nodeiter)
                 if nodeiter:
                     yield changegroup.chunkheader(len(fname))
                     yield fname
                     lookup = lookuprevlink_func(filerevlog)
                     for chnk in filerevlog.group(nodeiter, lookup):
                         yield chnk
 
             yield changegroup.closechunk()
 
             if nodes:
                 self.hook('outgoing', node=hex(nodes[0]), source=source)
 
         return util.chunkbuffer(gengroup())
 
     def addchangegroup(self, source, srctype, url, emptyok=False):
         """add changegroup to repo.
 
         return values:
         - nothing changed or no source: 0
         - more heads than before: 1+added heads (2..n)
         - less heads than before: -1-removed heads (-2..-n)
         - number of heads stays the same: 1
         """
         def csmap(x):
             self.ui.debug(_("add changeset %s\n") % short(x))
             return cl.count()
 
         def revmap(x):
             return cl.rev(x)
 
         if not source:
             return 0
 
         self.hook('prechangegroup', throw=True, source=srctype, url=url)
 
         changesets = files = revisions = 0
 
         # write changelog data to temp files so concurrent readers will not see
         # inconsistent view
         cl = self.changelog
         cl.delayupdate()
         oldheads = len(cl.heads())
 
         tr = self.transaction()
         try:
             trp = weakref.proxy(tr)
             # pull off the changeset group
             self.ui.status(_("adding changesets\n"))
             cor = cl.count() - 1
             chunkiter = changegroup.chunkiter(source)
             if cl.addgroup(chunkiter, csmap, trp) is None and not emptyok:
                 raise util.Abort(_("received changelog group is empty"))
             cnr = cl.count() - 1
             changesets = cnr - cor
 
             # pull off the manifest group
             self.ui.status(_("adding manifests\n"))
             chunkiter = changegroup.chunkiter(source)
             # no need to check for empty manifest group here:
             # if the result of the merge of 1 and 2 is the same in 3 and 4,
             # no new manifest will be created and the manifest group will
             # be empty during the pull
             self.manifest.addgroup(chunkiter, revmap, trp)
 
             # process the files
             self.ui.status(_("adding file changes\n"))
             while 1:
                 f = changegroup.getchunk(source)
                 if not f:
                     break
                 self.ui.debug(_("adding %s revisions\n") % f)
                 fl = self.file(f)
                 o = fl.count()
                 chunkiter = changegroup.chunkiter(source)
                 if fl.addgroup(chunkiter, revmap, trp) is None:
                     raise util.Abort(_("received file revlog group is empty"))
                 revisions += fl.count() - o
                 files += 1
 
             # make changelog see real files again
             cl.finalize(trp)
 
             newheads = len(self.changelog.heads())
             heads = ""
             if oldheads and newheads != oldheads:
                 heads = _(" (%+d heads)") % (newheads - oldheads)
 
             self.ui.status(_("added %d changesets"
                              " with %d changes to %d files%s\n")
                              % (changesets, revisions, files, heads))
 
             if changesets > 0:
                 self.hook('pretxnchangegroup', throw=True,
                           node=hex(self.changelog.node(cor+1)), source=srctype,
                           url=url)
 
             tr.close()
         finally:
             del tr
 
         if changesets > 0:
             # forcefully update the on-disk branch cache
             self.ui.debug(_("updating the branch cache\n"))
             self.branchtags()
             self.hook("changegroup", node=hex(self.changelog.node(cor+1)),
                       source=srctype, url=url)
 
             for i in xrange(cor + 1, cnr + 1):
                 self.hook("incoming", node=hex(self.changelog.node(i)),
                           source=srctype, url=url)
 
         # never return 0 here:
         if newheads < oldheads:
             return newheads - oldheads - 1
         else:
             return newheads - oldheads + 1
 
 
     def stream_in(self, remote):
         fp = remote.stream_out()
         l = fp.readline()
         try:
             resp = int(l)
         except ValueError:
             raise util.UnexpectedOutput(
                 _('Unexpected response from remote server:'), l)
         if resp == 1:
             raise util.Abort(_('operation forbidden by server'))
         elif resp == 2:
             raise util.Abort(_('locking the remote repository failed'))
         elif resp != 0:
             raise util.Abort(_('the server sent an unknown error code'))
         self.ui.status(_('streaming all changes\n'))
         l = fp.readline()
         try:
             total_files, total_bytes = map(int, l.split(' ', 1))
         except (ValueError, TypeError):
             raise util.UnexpectedOutput(
                 _('Unexpected response from remote server:'), l)
         self.ui.status(_('%d files to transfer, %s of data\n') %
                        (total_files, util.bytecount(total_bytes)))
         start = time.time()
         for i in xrange(total_files):
             # XXX doesn't support '\n' or '\r' in filenames
             l = fp.readline()
             try:
                 name, size = l.split('\0', 1)
                 size = int(size)
             except ValueError, TypeError:
                 raise util.UnexpectedOutput(
                     _('Unexpected response from remote server:'), l)
             self.ui.debug('adding %s (%s)\n' % (name, util.bytecount(size)))
             ofp = self.sopener(name, 'w')
             for chunk in util.filechunkiter(fp, limit=size):
                 ofp.write(chunk)
             ofp.close()
         elapsed = time.time() - start
         if elapsed <= 0:
             elapsed = 0.001
         self.ui.status(_('transferred %s in %.1f seconds (%s/sec)\n') %
                        (util.bytecount(total_bytes), elapsed,
                         util.bytecount(total_bytes / elapsed)))
         self.invalidate()
         return len(self.heads()) + 1
 
     def clone(self, remote, heads=[], stream=False):
         '''clone remote repository.
 
         keyword arguments:
         heads: list of revs to clone (forces use of pull)
         stream: use streaming clone if possible'''
 
         # now, all clients that can request uncompressed clones can
         # read repo formats supported by all servers that can serve
         # them.
 
         # if revlog format changes, client will have to check version
         # and format flags on "stream" capability, and use
         # uncompressed only if compatible.
 
         if stream and not heads and remote.capable('stream'):
             return self.stream_in(remote)
         return self.pull(remote, heads)
 
 # used to avoid circular references so destructors work
 def aftertrans(files):
     renamefiles = [tuple(t) for t in files]
     def a():
         for src, dest in renamefiles:
             util.rename(src, dest)
     return a
 
 def instance(ui, path, create):
     return localrepository(ui, util.drop_scheme('file', path), create)
 
 def islocal(path):
     return True