merge with crew-stable

mercurial/commands.py

@@ -1,3118 +1,3124 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.
 
 import demandimport; demandimport.enable()
 from node import *
 from i18n import _
 import bisect, os, re, sys, urllib, shlex, stat
 import ui, hg, util, revlog, bundlerepo, extensions
 import difflib, patch, time, help, mdiff, tempfile
 import errno, version, socket
 import archival, changegroup, cmdutil, hgweb.server, sshserver
 
 # 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.
     """
 
     names = []
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts):
         if exact:
             if ui.verbose:
                 ui.status(_('adding %s\n') % rel)
             names.append(abs)
         elif repo.dirstate.state(abs) == '?':
             ui.status(_('adding %s\n') % rel)
             names.append(abs)
     if not opts.get('dry_run'):
         repo.add(names)
 
 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.
     """
     sim = float(opts.get('similarity') or 0)
     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.
     """
     getdate = util.cachefunc(lambda x: util.datestr(x.date()))
 
     if not pats:
         raise util.Abort(_('at least one file name or pattern required'))
 
     opmap = [['user', lambda x: ui.shortuser(x.user())],
              ['number', lambda x: str(x.rev())],
              ['changeset', lambda x: short(x.node())],
              ['date', getdate], ['follow', lambda x: x.path()]]
     if (not opts['user'] and not opts['changeset'] and not opts['date']
         and not opts['follow']):
         opts['number'] = 1
 
     ctx = repo.changectx(opts['rev'])
 
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts,
                                              node=ctx.node()):
         fctx = ctx.filectx(abs)
         if not opts['text'] and util.binary(fctx.data()):
             ui.write(_("%s: binary file\n") % ((pats and rel) or abs))
             continue
 
         lines = fctx.annotate(follow=opts.get('follow'))
         pieces = []
 
         for o, f in opmap:
             if opts[o]:
                 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.
     '''
 
     node = repo.changectx(opts['rev']).node()
     dest = cmdutil.make_filename(repo, dest, node)
     if os.path.realpath(dest) == repo.root:
         raise util.Abort(_('repository root cannot be destination'))
     dummy, matchfn, dummy = cmdutil.matchpats(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 is the parent of the working directory.  If
     you back out an old changeset, your working directory will appear
     old after the backout.  You should merge the backout changeset
     with another head.
 
     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.'''
     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"))
 
     cmdutil.bail_if_changed(repo)
     op1, op2 = repo.dirstate.parents()
     if op2 != nullid:
         raise util.Abort(_('outstanding uncommitted merge'))
     node = repo.lookup(rev)
     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
     hg.clean(repo, node, show_stats=False)
     revert_opts = opts.copy()
     revert_opts['date'] = None
     revert_opts['all'] = True
     revert_opts['rev'] = hex(parent)
     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:
         if opts['merge']:
             ui.status(_('merging with changeset %s\n') % nice(op1))
             hg.merge(repo, hex(op1))
         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 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.
     """
 
     if label:
         if not opts.get('force') and label in repo.branchtags():
             if label not in [p.branch() for p in repo.workingctx().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 unmerged heads.
     """
     b = repo.branchtags()
     heads = dict.fromkeys(repo.heads(), 1)
     l = [((n in heads), repo.changelog.rev(n), n, t) for t, n in b.items()]
     l.sort()
     l.reverse()
     for ishead, r, n, t in l:
         if active and not ishead:
             # If we're only displaying active branches, abort the loop on
             # encountering the first inactive head
             break
         else:
             hexfunc = ui.debugflag and hex or short
             if ui.quiet:
                 ui.write("%s\n" % t)
             else:
                 spaces = " " * (30 - util.locallen(t))
                 # The code only gets here if inactive branches are being
                 # displayed or the branch is active.
                 isinactive = ((not ishead) and " (inactive)") or ''
                 ui.write("%s%s %s:%s%s\n" % (t, spaces, r, hexfunc(n), isinactive))
 
 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.
 
     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]
     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 = cmdutil.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')
     changegroup.writebundle(cg, fname, "HG10BZ")
 
 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'])
     err = 1
     for src, abs, rel, exact in cmdutil.walk(repo, (file1,) + pats, opts,
                                              ctx.node()):
         fp = cmdutil.make_file(repo, opts['output'], ctx.node(), pathname=abs)
         fp.write(ctx.filectx(abs).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.
 
     You can safely clone repositories and checked out files using full
     hardlinks with
 
       $ cp -al REPO REPOCLONE
 
     which is the fastest way to clone. However, 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).
 
     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.
 
     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 no commit message is specified, the editor configured in your hgrc
     or in the EDITOR environment variable is started to enter a message.
     """
     message = cmdutil.logmessage(opts)
 
     if opts['addremove']:
         cmdutil.addremove(repo, pats, opts)
     fns, match, anypats = cmdutil.matchpats(repo, pats, opts)
     if pats:
         status = repo.status(files=fns, match=match)
         modified, added, removed, deleted, unknown = status[:5]
         files = modified + added + removed
         slist = None
         for f in fns:
             if f == '.':
                 continue
             if f not in files:
                 rf = repo.wjoin(f)
                 try:
                     mode = os.lstat(rf)[stat.ST_MODE]
                 except OSError:
                     raise util.Abort(_("file %s not found!") % rf)
                 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!")
                                          % rf)
                 elif not (stat.S_ISREG(mode) or stat.S_ISLNK(mode)):
                     raise util.Abort(_("can't commit %s: "
                                        "unsupported file type!") % rf)
                 elif repo.dirstate.state(f) == '?':
                     raise util.Abort(_("file %s not tracked!") % rf)
     else:
         files = []
     try:
         repo.commit(files, message, opts['user'], opts['date'], match,
                     force_editor=opts.get('force_editor'))
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def docopy(ui, repo, pats, opts, wlock):
     # 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()
     errors = 0
     copied = []
     targets = {}
 
     # abs: hgsep
     # rel: ossep
     # return: hgsep
     def okaytocopy(abs, rel, exact):
         reasons = {'?': _('is not managed'),
-                   'a': _('has been marked for add'),
                    'r': _('has been marked for remove')}
         state = repo.dirstate.state(abs)
         reason = reasons.get(state)
         if reason:
+            if exact:
+                ui.warn(_('%s: not copying - file %s\n') % (rel, reason))
+        else:
             if state == 'a':
                 origsrc = repo.dirstate.copied(abs)
                 if origsrc is not None:
                     return origsrc
-            if exact:
-                ui.warn(_('%s: not copying - file %s\n') % (rel, reason))
-        else:
             return abs
 
     # origsrc: hgsep
     # abssrc: hgsep
     # relsrc: ossep
     # otarget: ossep
     def copy(origsrc, abssrc, relsrc, otarget, exact):
         abstarget = util.canonpath(repo.root, cwd, otarget)
         reltarget = repo.pathto(abstarget, cwd)
         prevsrc = targets.get(abstarget)
         src = repo.wjoin(abssrc)
         target = repo.wjoin(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
         if (not opts['after'] and os.path.exists(target) or
             opts['after'] and repo.dirstate.state(abstarget) not in '?ar'):
             if not opts['force']:
                 ui.warn(_('%s: not overwriting - file exists\n') %
                         reltarget)
                 return
             if not opts['after'] and not opts.get('dry_run'):
                 os.unlink(target)
         if opts['after']:
             if not os.path.exists(target):
                 return
         else:
             targetdir = os.path.dirname(target) or '.'
             if not os.path.isdir(targetdir) and not opts.get('dry_run'):
                 os.makedirs(targetdir)
             try:
                 restore = repo.dirstate.state(abstarget) == 'r'
                 if restore and not opts.get('dry_run'):
                     repo.undelete([abstarget], wlock)
                 try:
                     if not opts.get('dry_run'):
                         util.copyfile(src, target)
                     restore = False
                 finally:
                     if restore:
                         repo.remove([abstarget], wlock=wlock)
             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))
                     errors += 1
                     return
         if ui.verbose or not exact:
             ui.status(_('copying %s to %s\n') % (relsrc, reltarget))
         targets[abstarget] = abssrc
-        if abstarget != origsrc and not opts.get('dry_run'):
-            repo.copy(origsrc, abstarget, wlock)
+        if abstarget != origsrc:
+            if repo.dirstate.state(origsrc) == 'a':
+                ui.warn(_("%s was marked for addition. "
+                          "%s will not be committed as a copy.\n")
+                        % (repo.pathto(origsrc, cwd), reltarget))
+                if abstarget not in repo.dirstate and not opts.get('dry_run'):
+                    repo.add([abstarget], wlock)
+            elif not opts.get('dry_run'):
+                repo.copy(origsrc, abstarget, wlock)
         copied.append((abssrc, relsrc, exact))
 
     # 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)
     if (len(pats) > 1 or util.patkind(pats[0], None)[0]) and not destdirexists:
         raise util.Abort(_('with multiple sources, destination must be an '
                          'existing directory'))
     if opts['after']:
         tfn = targetpathafterfn
     else:
         tfn = targetpathfn
     copylist = []
     for pat in pats:
         srcs = []
         for tag, abssrc, relsrc, exact in cmdutil.walk(repo, [pat], opts,
                                                        globbed=True):
             origsrc = okaytocopy(abssrc, relsrc, exact)
             if origsrc:
                 srcs.append((origsrc, abssrc, relsrc, exact))
         if not srcs:
             continue
         copylist.append((tfn(pat, dest, srcs), srcs))
     if not copylist:
         raise util.Abort(_('no files to copy'))
 
     for targetpath, srcs in copylist:
         for origsrc, abssrc, relsrc, exact in srcs:
             copy(origsrc, abssrc, relsrc, targetpath(abssrc), exact)
 
     if errors:
         ui.warn(_('(consider using --after)\n'))
     return errors, copied
 
 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(0)
     errs, copied = docopy(ui, repo, pats, opts, wlock)
     return errs
 
 def debugancestor(ui, index, rev1, rev2):
     """find the ancestor revision of two revisions in a given index"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), index)
     a = r.ancestor(r.lookup(rev1), r.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)
             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).keys()
     clist.sort()
     ui.write("%s\n" % "\n".join(clist))
 
 def debugrebuildstate(ui, repo, rev=""):
     """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()
     wlock = repo.wlock()
     repo.dirstate.rebuild(rev, files)
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     dc = repo.dirstate
     m1 = repo.changectx(parent1).manifest()
     m2 = repo.changectx(parent2).manifest()
     errors = 0
     for f in dc:
         state = repo.dirstate.state(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.state(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:
         wlock.release()
 
 def debugstate(ui, repo):
     """show the contents of the current dirstate"""
     dc = repo.dirstate
     for file_ in dc:
         if dc[file_][3] == -1:
             # Pad or slice to locale representation
             locale_len = len(time.strftime("%x %X", time.localtime(0)))
             timestr = 'unset'
             timestr = timestr[:locale_len] + ' '*(locale_len - len(timestr))
         else:
             timestr = time.strftime("%x %X", time.localtime(dc[file_][3]))
         ui.write("%c %3o %10d %s %s\n"
                  % (dc[file_][0], dc[file_][1] & 0777, dc[file_][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)
         pp = r.parents(node)
         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()
         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"))
     patcher = ui.config('ui', 'patch')
     patcher = ((patcher and util.find_exe(patcher)) or
                util.find_exe('gpatch') or
                util.find_exe('patch'))
     if not patcher:
         ui.write(_(" Can't find patch or gpatch in PATH\n"))
         ui.write(_(" (specify a patch utility in your .hgrc file)\n"))
         problems += 1
     else:
         # actually attempt a patch here
         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))
         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")
             problems += 1
         else:
             if list(files) != [os.path.basename(fa)]:
                 ui.write(_(" unexpected patch output!"))
                 ui.write(_(" (you may have an incompatible version of patch)\n"))
                 problems += 1
             a = file(fa).read()
             if a != b:
                 ui.write(_(" patch test failed!"))
                 ui.write(_(" (you may have an incompatible version of patch)\n"))
                 problems += 1
 
         os.unlink(fa)
         os.unlink(fd)
 
     # merge helper
     ui.status(_("Checking merge helper...\n"))
     cmd = (os.environ.get("HGMERGE") or ui.config("ui", "merge")
            or "hgmerge")
     cmdpath = util.find_exe(cmd) or util.find_exe(cmd.split()[0])
     if not cmdpath:
         if cmd == 'hgmerge':
             ui.write(_(" No merge helper set and can't find default"
                        " hgmerge script in PATH\n"))
             ui.write(_(" (specify a merge helper in your .hgrc file)\n"))
         else:
             ui.write(_(" Can't find merge helper '%s' in PATH\n") % cmd)
             ui.write(_(" (specify a merge helper in your .hgrc file)\n"))
             problems += 1
     else:
         # actually attempt a patch here
         fa = writetemp("1\n2\n3\n4\n")
         fl = writetemp("1\n2\n3\ninsert\n4\n")
         fr = writetemp("begin\n1\n2\n3\n4\n")
         r = os.system('%s %s %s %s' % (cmd, fl, fa, fr))
         if r:
             ui.write(_(" got unexpected merge error %d!") % r)
             problems += 1
         m = file(fl).read()
         if m != "begin\n1\n2\n3\ninsert\n4\n":
             ui.write(_(" got unexpected merge results!") % r)
             ui.write(_(" (your merge helper may have the"
                        " wrong argument order)\n"))
             ui.write(m)
         os.unlink(fa)
         os.unlink(fl)
         os.unlink(fr)
 
     # editor
     ui.status(_("Checking commit editor...\n"))
     editor = (os.environ.get("HGEDITOR") or
               ui.config("ui", "editor") or
               os.environ.get("EDITOR", "vi"))
     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'))
     for src, abs, rel, exact in cmdutil.walk(repo, (file1,) + pats, opts,
                                              ctx.node()):
         m = ctx.filectx(abs).renamed()
         if m:
             ui.write(_("%s renamed from %s:%s\n") % (rel, m[0], hex(m[1])))
         else:
             ui.write(_("%s not renamed\n") % rel)
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     items = list(cmdutil.walk(repo, pats, opts))
     if not items:
         return
     fmt = '%%s  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for (src, abs, rel, exact) in items]),
         max([len(rel) for (src, abs, rel, exact) in items]))
     for src, abs, rel, exact in items:
         line = fmt % (src, abs, rel, exact 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'])
 
     fns, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
 
     patch.diff(repo, node1, node2, fns, match=matchfn,
                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
     regexp = re.compile(pattern, reflags)
     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 __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):
         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['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())
     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':
             mf = repo.changectx(rev).manifest()
             matches[rev] = {}
             for fn in fns:
                 if fn in skip:
                     continue
                 fstate.setdefault(fn, {})
                 try:
                     grepbody(fn, rev, getfile(fn).read(mf[fn]))
                     if follow:
                         copied = getfile(fn).renamed(mf[fn])
                         if copied:
                             copies.setdefault(rev, {})[fn] = copied[0]
                 except KeyError:
                     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()
             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')
         aliases, i = cmdutil.findcmd(ui, name)
         # synopsis
         ui.write("%s\n\n" % i[2])
 
         # description
         doc = i[0].__doc__
         if not doc:
             doc = _("(No help text available)")
         if ui.quiet:
             doc = doc.splitlines(0)[0]
         ui.write("%s\n" % doc.rstrip())
 
         if not ui.quiet:
             # aliases
             if len(aliases) > 1:
                 ui.write(_("\naliases: %s\n") % ', '.join(aliases[1:]))
 
             # options
             if i[1]:
                 option_lists.append((_("options:\n"), i[1]))
 
             addglobalopts(False)
 
     def helplist(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("^")
 
         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 in help.helptable:
             l = i.split('|')
             if name in l:
                 v = i
                 header = l[-1]
         if not v:
             raise cmdutil.UnknownCommand(name)
 
         # description
         doc = help.helptable[v]
         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 = None
         if not ct:
             ui.status(_('no commands defined\n'))
             return
 
         ui.status(_('list of commands:\n\n'))
         modcmds = dict.fromkeys([c.split('|', 1)[0] for c in ct])
         helplist(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":
             ui.status(_('basic commands:\n\n'))
         else:
             ui.status(_('list of commands:\n\n'))
 
         helplist()
 
     # 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 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.
     """
 
     hexfunc = ui.debugflag and hex or short
     default = not (num or id or branch or tags)
     output = []
 
     if source:
         source, revs = cmdutil.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.workingctx()
         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)
         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 "-".
     """
     patches = (patch1,) + patches
 
     if opts.get('exact') or not opts['force']:
         cmdutil.bail_if_changed(repo)
 
     d = opts["base"]
     strip = opts["strip"]
 
     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"))
             tmpname, message, user, date, branch, nodeid, p1, p2 = patch.extract(ui, sys.stdin)
         else:
             ui.status(_("applying %s\n") % p)
             tmpname, message, user, date, branch, nodeid, p1, p2 = patch.extract(ui, file(pf, 'rb'))
 
         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.workingctx().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, wlock=wlock)
                 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 hg.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, wlock=wlock)
             n = repo.commit(files, message, user, date, wlock=wlock, lock=lock)
             if opts.get('exact'):
                 if hex(n) != nodeid:
                     repo.rollback(wlock=wlock, lock=lock)
                     raise util.Abort(_('patch is damaged or loses information'))
         finally:
             os.unlink(tmpname)
 
 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.
     """
     source, revs = cmdutil.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('comparing with %s\n') % source)
     if revs:
         if 'lookup' in other.capabilities:
             revs = [other.lookup(rev) for rev in revs]
         else:
             error = _("Other repository doesn't support revision lookup, so a rev cannot be specified.")
             raise util.Abort(error)
     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:
                 if 'changegroupsubset' not in other.capabilities:
                     raise util.Abort(_("Partial incoming cannot be done because other repository doesn't support changegroupsubset."))
                 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)
         for n in o:
             parents = [p for p in other.changelog.parents(n) if p != nullid]
             if opts['no_merges'] and len(parents) == 2:
                 continue
             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
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts, node=node,
                                              badmatch=util.always,
                                              default='relglob'):
         if src == 'b':
             continue
         if not node and repo.dirstate.state(abs) == '?':
             continue
         if opts['fullpath']:
             ui.write(os.path.join(repo.root, abs), end)
         else:
             ui.write(((pats and rel) 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.
 
     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())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
 
     if opts['limit']:
         try:
             limit = int(opts['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
     count = 0
 
     if opts['copies'] and opts['rev']:
         endrev = max(cmdutil.revrange(repo, opts['rev'])) + 1
     else:
         endrev = repo.changelog.count()
     rcache = {}
     ncache = {}
     dcache = []
     def getrenamed(fn, rev, man):
         '''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]
         mr = repo.manifest.rev(man)
         if repo.manifest.parentrevs(mr) != (mr - 1, nullrev):
             return ncache[fn].get(repo.manifest.find(man, fn)[0])
         if not dcache or dcache[0] != man:
             dcache[:] = [man, repo.manifest.readdelta(man)]
         if fn in dcache[1]:
             return ncache[fn].get(dcache[1][fn])
         return None
 
     df = False
     if opts["date"]:
         df = util.matchdate(opts["date"])
 
     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 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:
                 mf = get(rev)[0]
                 for fn in get(rev)[3]:
                     rename = getrenamed(fn, rev, mf)
                     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, 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. With --debug flag, print
     file revision hashes.
     """
 
     m = repo.changectx(rev).manifest()
     files = m.keys()
     files.sort()
 
     for f in files:
         if ui.debugflag:
             ui.write("%40s " % hex(m[f]))
         if ui.verbose:
             ui.write("%3s " % (m.execf(f) and "755" or "644"))
         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 repository 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:
         heads = repo.heads()
         if len(heads) > 2:
             raise util.Abort(_('repo has %d heads - '
                                'please merge with an explicit rev') %
                              len(heads))
         if len(heads) == 1:
             raise util.Abort(_('there is nothing to merge - '
                                'use "hg update" instead'))
         parent = repo.dirstate.parents()[0]
         if parent not in heads:
             raise util.Abort(_('working dir not at a head rev - '
                                'use "hg update" or merge with an explicit rev'))
         node = parent == heads[0] and heads[-1] or heads[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.
     """
     dest, revs = cmdutil.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') % 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)
     for n in o:
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
         if opts['no_merges'] and len(parents) == 2:
             continue
         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 file_:
         ctx = repo.filectx(file_, changeid=rev)
     elif rev:
         ctx = repo.changectx(rev)
     else:
         ctx = repo.workingctx()
     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" % path)
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, path))
 
 def postincoming(ui, repo, modheads, optupdate):
     if modheads == 0:
         return
     if optupdate:
         if modheads == 1:
             return hg.update(repo, repo.changelog.tip()) # update
         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 = cmdutil.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('pulling from %s\n') % (source))
     if revs:
         if 'lookup' in other.capabilities:
             revs = [other.lookup(rev) for rev in revs]
         else:
             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'])
 
 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 sync 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.
 
     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 = cmdutil.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' % (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, match, anypats = cmdutil.matchpats(repo, pats, opts)
     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.  If the files still exist in the working
     directory, they will be deleted from it.  If invoked with --after,
     files are marked as removed, but not actually unlinked unless --force
     is also given. Without exact file names, --after will only mark
     files as removed if they are no longer in the working directory.
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see hg revert.
 
     Modified files and added files are not removed by default.  To
     remove them, use the -f/--force option.
     """
     names = []
     if not opts['after'] and not pats:
         raise util.Abort(_('no files specified'))
     files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
     exact = dict.fromkeys(files)
     mardu = map(dict.fromkeys, repo.status(files=files, match=matchfn))[:5]
     modified, added, removed, deleted, unknown = mardu
     remove, forget = [], []
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts):
         reason = None
         if abs in modified and not opts['force']:
             reason = _('is modified (use -f to force removal)')
         elif abs in added:
             if opts['force']:
                 forget.append(abs)
                 continue
             reason = _('has been marked for add (use -f to force removal)')
         elif repo.dirstate.state(abs) == '?':
             reason = _('is not managed')
         elif opts['after'] and not exact and abs not in deleted:
             continue
         elif abs in removed:
             continue
         if reason:
             if exact:
                 ui.warn(_('not removing %s: file %s\n') % (rel, reason))
         else:
             if ui.verbose or not exact:
                 ui.status(_('removing %s\n') % rel)
             remove.append(abs)
     repo.forget(forget)
     repo.remove(remove, unlink=opts['force'] or not opts['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(0)
     errs, copied = docopy(ui, repo, pats, opts, wlock)
     names = []
     for abs, rel, exact in copied:
         if ui.verbose or not exact:
             ui.status(_('removing %s\n') % rel)
         names.append(abs)
     if not opts.get('dry_run'):
         repo.remove(names, True, wlock=wlock)
     return errs
 
 def revert(ui, repo, *pats, **opts):
     """revert files or dirs to their states as of some revision
 
     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.
 
     Modified files are saved with a .orig suffix before reverting.
     To disable these backups, use --no-backup.
 
     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 a change that should not have been committed.
 
     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 recreated.  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.
     """
 
     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'])
     node = ctx.node()
     mf = ctx.manifest()
     if node == parent:
         pmf = mf
     else:
         pmf = None
 
     wlock = repo.wlock()
 
     # 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 = {}
     target_only = {}
 
     # walk dirstate.
 
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts,
                                              badmatch=mf.has_key):
         names[abs] = (rel, exact)
         if src == 'b':
             target_only[abs] = True
 
     # walk target manifest.
 
     def badmatch(path):
         if path in names:
             return True
         path_ = path + '/'
         for f in names:
             if f.startswith(path_):
                 return True
         return False
 
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts, node=node,
                                              badmatch=badmatch):
         if abs in names or src == 'b':
             continue
         names[abs] = (rel, exact)
         target_only[abs] = True
 
     changes = repo.status(match=names.has_key, wlock=wlock)[:5]
     modified, added, removed, deleted, unknown = map(dict.fromkeys, changes)
 
     revert = ([], _('reverting %s\n'))
     add = ([], _('adding %s\n'))
     remove = ([], _('removing %s\n'))
     forget = ([], _('forgetting %s\n'))
     undelete = ([], _('undeleting %s\n'))
     update = {}
 
     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, forget, True, False),
         (removed, undelete, None, False, False),
         (deleted, revert, remove, False, False),
         (unknown, add, None, True, False),
         (target_only, add, None, 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)
             update[abs] = 1
             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:
                 ui.status(xlist[1] % 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)
             else:
                 if exact: ui.warn(_('file not managed: %s\n') % rel)
             break
         else:
             # 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()
             if abs in pmf:
                 if mfentry:
                     # if version of file is same in parent and target
                     # manifests, do nothing
                     if pmf[abs] != mfentry:
                         handle(revert, False)
                 else:
                     handle(remove, False)
 
     if not opts.get('dry_run'):
         repo.dirstate.forget(forget[0])
         r = hg.revert(repo, node, update.has_key, wlock)
         repo.dirstate.update(add[0], 'a')
         repo.dirstate.update(undelete[0], 'n')
         repo.dirstate.update(remove[0], 'r')
         return r
 
 def rollback(ui, repo):
     """roll back the last transaction in this repository
 
     Roll back the last transaction in this repository, restoring the
     project to its state prior to the transaction.
 
     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 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, which
     may lose subsequent dirstate changes.
 
     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 hg.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 ipv6"
                " accesslog errorlog webdir_conf")
     for o in optlist.split():
         if opts[o]:
             parentui.setconfig("web", o, str(opts[o]))
 
     if repo is None and not ui.config("web", "webdir_conf"):
         raise hg.RepoError(_("There is no Mercurial repository here"
                              " (.hg not found)"))
 
     class service:
         def init(self):
             util.set_signal_handler()
             try:
                 self.httpd = hgweb.server.create_server(parentui, repo)
             except socket.error, inst:
                 raise util.Abort(_('cannot start server: ') + inst.args[1])
 
             if not ui.verbose: return
 
             if self.httpd.port != 80:
                 ui.status(_('listening at http://%s:%d/\n') %
                           (self.httpd.addr, self.httpd.port))
             else:
                 ui.status(_('listening at http://%s/\n') % self.httpd.addr)
 
         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, are
     not listed unless -c (clean), -i (ignored) or -A is given.
 
     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 (not shown by default)
       = the previous added file was copied from here
     """
 
     all = opts['all']
     node1, node2 = cmdutil.revpair(repo, opts.get('rev'))
 
     files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
     cwd = (pats and repo.getcwd()) or ''
     modified, added, removed, deleted, unknown, ignored, clean = [
         n for n in repo.status(node1=node1, node2=node2, files=files,
                              match=matchfn,
                              list_ignored=all or opts['ignored'],
                              list_clean=all or opts['clean'])]
 
     changetypes = (('modified', 'M', modified),
                    ('added', 'A', added),
                    ('removed', 'R', removed),
                    ('deleted', '!', deleted),
                    ('unknown', '?', unknown),
                    ('ignored', 'I', ignored))
 
     explicit_changetypes = changetypes + (('clean', 'C', clean),)
 
     end = opts['print0'] and '\0' or '\n'
 
     for opt, char, changes in ([ct for ct in explicit_changetypes
                                 if all or opts[ct[0]]]
                                or changetypes):
         if opts['no_status']:
             format = "%%s%s" % end
         else:
             format = "%s %%s%s" % (char, end)
 
         for f in changes:
             ui.write(format % repo.pathto(f, cwd))
             if ((all or opts.get('copies')) and not opts.get('no_status')):
                 copied = repo.dirstate.copied(f)
                 if copied:
                     ui.write('  %s%s' % (repo.pathto(copied, cwd), end))
 
 def tag(ui, repo, name, rev_=None, **opts):
     """add a tag 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 revision, 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).
     """
     if name in ['tip', '.', 'null']:
         raise util.Abort(_("the name '%s' is reserved") % name)
     if rev_ is not None:
         ui.warn(_("use of 'hg tag NAME [REV]' is deprecated, "
                   "please use 'hg tag [-r REV] NAME' instead\n"))
         if opts['rev']:
             raise util.Abort(_("use only one form to specify the revision"))
     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']:
         if not name in repo.tags():
             raise util.Abort(_('tag %s does not exist') % name)
         rev_ = nullid
         if not message:
             message = _('Removed tag %s') % name
     elif name in repo.tags() and not opts['force']:
         raise util.Abort(_('a tag named %s already exists (use -f to force)')
                          % name)
     if not rev_ and repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
     r = repo.changectx(rev_).node()
 
     if not message:
         message = _('Added tag %s for changeset %s') % (name, short(r))
 
     repo.tag(name, r, message, opts['local'], opts['user'], opts['date'])
 
 def tags(ui, repo):
     """list repository tags
 
     List the repository tags.
 
     This lists both regular and local tags.
     """
 
     l = repo.tagslist()
     l.reverse()
     hexfunc = ui.debugflag and hex or short
     for t, n in l:
         try:
             hn = hexfunc(n)
             r = "%5d:%s" % (repo.changelog.rev(n), hexfunc(n))
         except revlog.LookupError:
             r = "    ?:%s" % hn
         if ui.quiet:
             ui.write("%s\n" % t)
         else:
             spaces = " " * (30 - util.locallen(t))
             ui.write("%s%s %s\n" % (t, spaces, r))
 
 def tip(ui, repo, **opts):
     """show the tip revision
 
     Show the tip revision.
     """
     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
     result = None
     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)
 
     return postincoming(ui, repo, modheads, opts['update'])
 
 def update(ui, repo, node=None, rev=None, clean=False, date=None):
     """update working directory
 
     Update the working directory to the specified revision, or the
     tip of the current branch if none is specified.
 
     If there are no outstanding changes in the working directory and
     there is a linear relationship between the current version and the
     requested version, the result is the requested version.
 
     To merge the working directory with another revision, use the
     merge command.
 
     By default, update will refuse to run if doing so would require
     discarding local changes.
     """
     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) 2005-2007 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>')),
 ]
 
 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":
         (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')),
           ('d', 'date', None, _('list the date')),
           ('n', 'number', None, _('list the revision number (default)')),
           ('c', 'changeset', None, _('list the changeset')),
          ] + walkopts,
          _('hg annotate [-r REV] [-f] [-a] [-u] [-d] [-n] [-c] 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')),
           ('d', 'date', '', _('record datecode as commit date')),
           ('', 'parent', '', _('parent to choose when backing out merge')),
           ('u', 'user', '', _('record user as committer')),
           ('r', 'rev', '', _('revision to backout')),
          ] + walkopts + commitopts,
          _('hg backout [OPTION]... [-r] REV')),
     "branch":
         (branch,
          [('f', 'force', None,
            _('set branch name even if it shadows an existing branch'))],
          _('hg branch [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 you would like to bundle')),
           ('', 'base', [],
            _('a base changeset to specify instead of a destination')),
          ] + remoteopts,
          _('hg bundle [-f] [-r REV]... [--base REV]... FILE [DEST]')),
     "cat":
         (cat,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('r', 'rev', '', _('print the given revision')),
          ] + walkopts,
          _('hg cat [OPTION]... FILE...')),
     "^clone":
         (clone,
          [('U', 'noupdate', None, _('do not update the new working directory')),
           ('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')),
           ('d', 'date', '', _('record datecode as commit date')),
           ('u', 'user', '', _('record user as commiter')),
          ] + walkopts + commitopts,
          _('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, [], _('debugancestor INDEX REV1 REV2')),
     "debugcomplete":
         (debugcomplete,
          [('o', 'options', None, _('show the command options'))],
          _('debugcomplete [-o] CMD')),
     "debuginstall": (debuginstall, [], _('debuginstall')),
     "debugrebuildstate":
         (debugrebuildstate,
          [('r', 'rev', '', _('revision to rebuild to'))],
          _('debugrebuildstate [-r REV] [REV]')),
     "debugcheckstate": (debugcheckstate, [], _('debugcheckstate')),
     "debugsetparents": (debugsetparents, [], _('debugsetparents REV1 [REV2]')),
     "debugstate": (debugstate, [], _('debugstate')),
     "debugdate":
         (debugdate,
          [('e', 'extended', None, _('try extended date formats'))],
          _('debugdate [-e] DATE [RANGE]')),
     "debugdata": (debugdata, [], _('debugdata FILE REV')),
     "debugindex": (debugindex, [], _('debugindex FILE')),
     "debugindexdot": (debugindexdot, [], _('debugindexdot FILE')),
     "debugrename":
         (debugrename,
          [('r', 'rev', '', _('revision to debug'))],
          _('debugrename [-r REV] FILE')),
     "debugwalk": (debugwalk, walkopts, _('debugwalk [OPTION]... [FILE]...')),
     "^diff":
         (diff,
          [('r', 'rev', [], _('revision')),
           ('a', 'text', None, _('treat all files as text')),
           ('p', 'show-function', None,
            _('show which function each change is in')),
           ('g', 'git', None, _('use git extended diff format')),
           ('', 'nodates', None, _("don't include dates in diff headers")),
           ('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')),
          ] + walkopts,
          _('hg diff [OPTION]... [-r REV1 [-r REV2]] [FILE]...')),
     "^export":
         (export,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('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")),
           ('', 'switch-parent', None, _('diff against the second parent'))],
          _('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, _('print user who committed change')),
          ] + walkopts,
          _('hg grep [OPTION]... PATTERN [FILE]...')),
     "heads":
         (heads,
          [('', 'style', '', _('display using template map file')),
           ('r', 'rev', '', _('show only heads which are descendants of rev')),
           ('', 'template', '', _('display with template'))],
          _('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')),
           ('', '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,
          _('hg import [-p NUM] [-m MESSAGE] [-f] PATCH...')),
     "incoming|in": (incoming,
          [('M', 'no-merges', None, _('do not show merges')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('', 'style', '', _('display using template map file')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'bundle', '', _('file to store the bundles into')),
           ('p', 'patch', None, _('show patch')),
           ('r', 'rev', [], _('a specific revision up to which you would like to pull')),
           ('', 'template', '', _('display with template')),
          ] + 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')),
           ('l', 'limit', '', _('limit number of changes displayed')),
           ('r', 'rev', [], _('show the specified revision or range')),
           ('', 'removed', None, _('include revs where files were removed')),
           ('M', 'no-merges', None, _('do not show merges')),
           ('', 'style', '', _('display using template map file')),
           ('m', 'only-merges', None, _('show only merges')),
           ('p', 'patch', None, _('show patch')),
           ('P', 'prune', [], _('do not display revision or any of its ancestors')),
           ('', 'template', '', _('display with template')),
          ] + walkopts,
          _('hg log [OPTION]... [FILE]')),
     "manifest": (manifest, [], _('hg manifest [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,
          [('M', 'no-merges', None, _('do not show merges')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('p', 'patch', None, _('show patch')),
           ('', 'style', '', _('display using template map file')),
           ('r', 'rev', [], _('a specific revision you would like to push')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'template', '', _('display with template')),
          ] + remoteopts,
          _('hg outgoing [-M] [-p] [-n] [-f] [-r REV]... [DEST]')),
     "^parents":
         (parents,
          [('r', 'rev', '', _('show parents from the specified rev')),
           ('', 'style', '', _('display using template map file')),
           ('', 'template', '', _('display with template'))],
          _('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 you would like to push')),
          ] + remoteopts,
          _('hg push [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]')),
     "debugrawcommit|rawcommit":
         (rawcommit,
          [('p', 'parent', [], _('parent')),
           ('d', 'date', '', _('date code')),
           ('u', 'user', '', _('user')),
           ('F', 'files', '', _('file list'))
           ] + commitopts,
          _('hg debugrawcommit [OPTION]... [FILE]...')),
     "recover": (recover, [], _('hg recover')),
     "^remove|rm":
         (remove,
          [('A', 'after', None, _('record remove that has already occurred')),
           ('f', 'force', None, _('remove file even if 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')),
     "^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')),
     "showconfig|debugconfig":
         (showconfig,
          [('u', 'untrusted', None, _('show untrusted configuration options'))],
          _('showconfig [-u] [NAME]...')),
     "^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 use (default: 8000)')),
           ('a', 'address', '', _('address to use')),
           ('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'))],
          _('hg serve [OPTION]...')),
     "^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')),
           ('m', 'message', '', _('message for tag commit log entry')),
           ('d', 'date', '', _('record datecode as commit date')),
           ('u', 'user', '', _('record user as commiter')),
           ('r', 'rev', '', _('revision to tag')),
           ('', 'remove', None, _('remove a tag'))],
          _('hg tag [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME')),
     "tags": (tags, [], _('hg tags')),
     "tip":
         (tip,
          [('', 'style', '', _('display using template map file')),
           ('p', 'patch', None, _('show patch')),
           ('', 'template', '', _('display with template'))],
          _('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')),
           ('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 debugancestor debugcomplete debugdata"
           " debugindex debugindexdot debugdate debuginstall")
 optionalrepo = ("paths serve showconfig")
 
 def dispatch(args, argv0=None):
     try:
         u = ui.ui(traceback='--traceback' in args)
     except util.Abort, inst:
         sys.stderr.write(_("abort: %s\n") % inst)
         return -1
     return cmdutil.runcatch(u, args, argv0=argv0)
 
 def run():
     sys.exit(dispatch(sys.argv[1:], argv0=sys.argv[0]))

mercurial/hgweb/hgweb_mod.py

@@ -1,1180 +1,1180 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, re, zlib, mimetools, cStringIO, sys
 import tempfile, urllib, bz2
 from mercurial.node import *
 from mercurial.i18n import gettext as _
 from mercurial import mdiff, ui, hg, util, archival, streamclone, patch
 from mercurial import revlog, templater
 from common import get_mtime, staticfile, style_map, paritygen
 
 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 hg.RepoError:
             pass
 
     return nav
 
 class hgweb(object):
     def __init__(self, repo, name=None):
         if type(repo) == type(""):
             self.repo = hg.repository(ui.ui(report_untrusted=False), repo)
         else:
             self.repo = repo
 
         self.mtime = -1
         self.reponame = name
         self.archives = 'zip', 'gz', 'bz2'
         self.stripecount = 1
         # 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)
 
     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, files, changeset):
         for f in files[:self.maxfiles]:
             yield self.t("filedifflink", node=hex(changeset), file=f)
         if len(files) > self.maxfiles:
             yield self.t("fileellipses")
 
     def siblings(self, 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(self, fl, node):
         r = fl.renamed(node)
         if r:
             return [dict(file=r[0], node=hex(r[1]))]
         return []
 
     def nodetagsdict(self, node):
         return [{"name": i} for i in self.repo.nodetags(node)]
 
     def nodebranchdict(self, ctx):
         branches = []
         branch = ctx.branch()
         if self.repo.branchtags()[branch] == ctx.node():
             branches.append({"name": branch})
         return branches
 
     def showtag(self, t1, node=nullid, **args):
         for t in self.repo.nodetags(node):
             yield self.t(t1, tag=t, **args)
 
     def diff(self, 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 self.t("diffblock",
                          lines=prettyprintlines(diff),
                          parity=parity.next(),
                          file=f,
                          filenode=hex(fn or nullid))
 
         def prettyprintlines(diff):
             for l in diff.splitlines(1):
                 if l.startswith('+'):
                     yield self.t("difflineplus", line=l)
                 elif l.startswith('-'):
                     yield self.t("difflineminus", line=l)
                 elif l.startswith('@'):
                     yield self.t("difflineat", line=l)
                 else:
                     yield self.t("diffline", line=l)
 
         r = self.repo
         c1 = r.changectx(node1)
         c2 = r.changectx(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,
                                           opts=diffopts), f, tn)
         for f in added:
             to = None
             tn = c2.filectx(f).data()
             yield diffblock(mdiff.unidiff(to, date1, tn, date2, 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,
                                           opts=diffopts), f, tn)
 
     def changelog(self, ctx, shortlog=False):
         def changelist(**map):
             cl = self.repo.changelog
             l = [] # build a list in forward order for efficiency
             for i in xrange(start, end):
                 ctx = self.repo.changectx(i)
                 n = ctx.node()
 
                 l.insert(0, {"parity": parity.next(),
                              "author": ctx.user(),
                              "parent": self.siblings(ctx.parents(), i - 1),
                              "child": self.siblings(ctx.children(), i + 1),
                              "changelogtag": self.showtag("changelogtag",n),
                              "desc": ctx.description(),
                              "date": ctx.date(),
                              "files": self.listfilediffs(ctx.files(), n),
                              "rev": i,
                              "node": hex(n),
                              "tags": self.nodetagsdict(n),
                              "branches": self.nodebranchdict(ctx)})
 
             for e in l:
                 yield e
 
         maxchanges = shortlog and self.maxshortchanges or self.maxchanges
         cl = self.repo.changelog
         count = cl.count()
         pos = ctx.rev()
         start = max(0, pos - maxchanges + 1)
         end = min(count, start + maxchanges)
         pos = end - 1
         parity = paritygen(self.stripecount, offset=start-end)
 
         changenav = revnavgen(pos, maxchanges, count, self.repo.changectx)
 
         yield self.t(shortlog and 'shortlog' or 'changelog',
                      changenav=changenav,
                      node=hex(cl.tip()),
                      rev=pos, changesets=count, entries=changelist,
                      archives=self.archivelist("tip"))
 
     def search(self, query):
 
         def changelist(**map):
             cl = self.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):
                         ctx = self.repo.changectx(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()
 
                 yield self.t('searchentry',
                              parity=parity.next(),
                              author=ctx.user(),
                              parent=self.siblings(ctx.parents()),
                              child=self.siblings(ctx.children()),
                              changelogtag=self.showtag("changelogtag",n),
                              desc=ctx.description(),
                              date=ctx.date(),
                              files=self.listfilediffs(ctx.files(), n),
                              rev=ctx.rev(),
                              node=hex(n),
                              tags=self.nodetagsdict(n),
                              branches=self.nodebranchdict(ctx))
 
                 if count >= self.maxchanges:
                     break
 
         cl = self.repo.changelog
         parity = paritygen(self.stripecount)
 
         yield self.t('search',
                      query=query,
                      node=hex(cl.tip()),
                      entries=changelist,
                      archives=self.archivelist("tip"))
 
     def changeset(self, ctx):
         n = ctx.node()
         parents = ctx.parents()
         p1 = parents[0].node()
 
         files = []
         parity = paritygen(self.stripecount)
         for f in ctx.files():
             files.append(self.t("filenodelink",
                                 node=hex(n), file=f,
                                 parity=parity.next()))
 
         def diff(**map):
             yield self.diff(p1, n, None)
 
         yield self.t('changeset',
                      diff=diff,
                      rev=ctx.rev(),
                      node=hex(n),
                      parent=self.siblings(parents),
                      child=self.siblings(ctx.children()),
                      changesettag=self.showtag("changesettag",n),
                      author=ctx.user(),
                      desc=ctx.description(),
                      date=ctx.date(),
                      files=files,
                      archives=self.archivelist(hex(n)),
                      tags=self.nodetagsdict(n),
                      branches=self.nodebranchdict(ctx))
 
     def filelog(self, fctx):
         f = fctx.path()
         fl = fctx.filelog()
         count = fl.count()
         pagelen = self.maxshortchanges
         pos = fctx.filerev()
         start = max(0, pos - pagelen + 1)
         end = min(count, start + pagelen)
         pos = end - 1
         parity = paritygen(self.stripecount, offset=start-end)
 
         def entries(**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": self.renamelink(fl, n),
                              "parent": self.siblings(fctx.parents()),
                              "child": self.siblings(fctx.children()),
                              "desc": ctx.description()})
 
             for e in l:
                 yield e
 
         nodefunc = lambda x: fctx.filectx(fileid=x)
         nav = revnavgen(pos, pagelen, count, nodefunc)
         yield self.t("filelog", file=f, node=hex(fctx.node()), nav=nav,
                      entries=entries)
 
     def filerevision(self, fctx):
         f = fctx.path()
         text = fctx.data()
         fl = fctx.filelog()
         n = fctx.filenode()
         parity = paritygen(self.stripecount)
 
         mt = mimetypes.guess_type(f)[0]
         rawtext = text
         if util.binary(text):
             mt = mt or 'application/octet-stream'
             text = "(binary:%s)" % mt
         mt = mt or 'text/plain'
 
         def lines():
             for l, t in enumerate(text.splitlines(1)):
                 yield {"line": t,
                        "linenumber": "% 6d" % (l + 1),
                        "parity": parity.next()}
 
         yield self.t("filerevision",
                      file=f,
                      path=_up(f),
                      text=lines(),
                      raw=rawtext,
                      mimetype=mt,
                      rev=fctx.rev(),
                      node=hex(fctx.node()),
                      author=fctx.user(),
                      date=fctx.date(),
                      desc=fctx.description(),
                      parent=self.siblings(fctx.parents()),
                      child=self.siblings(fctx.children()),
                      rename=self.renamelink(fl, n),
-                     permissions=fctx.manifest().execf(f))
+                     permissions=fctx.manifest().flags(f))
 
     def fileannotate(self, fctx):
         f = fctx.path()
         n = fctx.filenode()
         fl = fctx.filelog()
         parity = paritygen(self.stripecount)
 
         def annotate(**map):
             last = None
             for f, l in fctx.annotate(follow=True):
                 fnode = f.filenode()
                 name = self.repo.ui.shortuser(f.user())
 
                 if last != fnode:
                     last = fnode
 
                 yield {"parity": parity.next(),
                        "node": hex(f.node()),
                        "rev": f.rev(),
                        "author": name,
                        "file": f.path(),
                        "line": l}
 
         yield self.t("fileannotate",
                      file=f,
                      annotate=annotate,
                      path=_up(f),
                      rev=fctx.rev(),
                      node=hex(fctx.node()),
                      author=fctx.user(),
                      date=fctx.date(),
                      desc=fctx.description(),
                      rename=self.renamelink(fl, n),
                      parent=self.siblings(fctx.parents()),
                      child=self.siblings(fctx.children()),
-                     permissions=fctx.manifest().execf(f))
+                     permissions=fctx.manifest().flags(f))
 
     def manifest(self, ctx, path):
         mf = ctx.manifest()
         node = ctx.node()
 
         files = {}
         parity = paritygen(self.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)
 
         def filelist(**map):
             fl = files.keys()
             fl.sort()
             for f in fl:
                 full, fnode = files[f]
                 if not fnode:
                     continue
 
                 yield {"file": full,
                        "parity": parity.next(),
                        "basename": f,
                        "size": ctx.filectx(full).size(),
-                       "permissions": mf.execf(full)}
+                       "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": os.path.join(abspath, f),
                        "basename": f[:-1]}
 
         yield self.t("manifest",
                      rev=ctx.rev(),
                      node=hex(node),
                      path=abspath,
                      up=_up(abspath),
                      upparity=parity.next(),
                      fentries=filelist,
                      dentries=dirlist,
                      archives=self.archivelist(hex(node)),
                      tags=self.nodetagsdict(node),
                      branches=self.nodebranchdict(ctx))
 
     def tags(self):
         i = self.repo.tagslist()
         i.reverse()
         parity = paritygen(self.stripecount)
 
         def entries(notip=False, **map):
             for k, n in i:
                 if notip and k == "tip":
                     continue
                 yield {"parity": parity.next(),
                        "tag": k,
                        "date": self.repo.changectx(n).date(),
                        "node": hex(n)}
 
         yield self.t("tags",
                      node=hex(self.repo.changelog.tip()),
                      entries=lambda **x: entries(False, **x),
                      entriesnotip=lambda **x: entries(True, **x))
 
     def summary(self):
         i = self.repo.tagslist()
         i.reverse()
 
         def tagentries(**map):
             parity = paritygen(self.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 self.t("tagentry",
                              parity=parity.next(),
                              tag=k,
                              node=hex(n),
                              date=self.repo.changectx(n).date())
 
 
         def branches(**map):
             parity = paritygen(self.stripecount)
 
             b = self.repo.branchtags()
             l = [(-self.repo.changelog.rev(n), n, t) for t, n in b.items()]
             l.sort()
 
             for r,n,t in l:
                 ctx = self.repo.changectx(n)
 
                 yield {'parity': parity.next(),
                        'branch': t,
                        'node': hex(n),
                        'date': ctx.date()}
 
         def changelist(**map):
             parity = paritygen(self.stripecount, offset=start-end)
             l = [] # build a list in forward order for efficiency
             for i in xrange(start, end):
                 ctx = self.repo.changectx(i)
                 n = ctx.node()
                 hn = hex(n)
 
                 l.insert(0, self.t(
                     'shortlogentry',
                     parity=parity.next(),
                     author=ctx.user(),
                     desc=ctx.description(),
                     date=ctx.date(),
                     rev=i,
                     node=hn,
                     tags=self.nodetagsdict(n),
                     branches=self.nodebranchdict(ctx)))
 
             yield l
 
         cl = self.repo.changelog
         count = cl.count()
         start = max(0, count - self.maxchanges)
         end = min(count, start + self.maxchanges)
 
         yield self.t("summary",
                  desc=self.config("web", "description", "unknown"),
                  owner=(self.config("ui", "username") or # preferred
                         self.config("web", "contact") or # deprecated
                         self.config("web", "author", "unknown")), # also
                  lastchange=cl.read(cl.tip())[2],
                  tags=tagentries,
                  branches=branches,
                  shortlog=changelist,
                  node=hex(cl.tip()),
                  archives=self.archivelist("tip"))
 
     def filediff(self, fctx):
         n = fctx.node()
         path = fctx.path()
         parents = fctx.parents()
         p1 = parents and parents[0].node() or nullid
 
         def diff(**map):
             yield self.diff(p1, n, [path])
 
         yield self.t("filediff",
                      file=path,
                      node=hex(n),
                      rev=fctx.rev(),
                      parent=self.siblings(parents),
                      child=self.siblings(fctx.children()),
                      diff=diff)
 
     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 archive(self, req, key, type_):
         reponame = re.sub(r"\W+", "-", os.path.basename(self.reponame))
         cnode = self.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 = self.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)
         archival.archive(self.repo, req.out, cnode, artype, prefix=name)
 
     # add tags to things
     # tags -> list of changesets corresponding to tags
     # find tag, changeset, file
 
     def cleanpath(self, path):
         path = path.lstrip('/')
         return util.canonpath(self.repo.root, '', path)
 
     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
         from request import wsgiapplication
         def make_web_app():
             return self
         wsgicgi.launch(wsgiapplication(make_web_app))
 
     def run_wsgi(self, req):
         def header(**map):
             header_file = cStringIO.StringIO(
                 ''.join(self.t("header", encoding=self.encoding, **map)))
             msg = mimetools.Message(header_file, 0)
             req.header(msg.items())
             yield header_file.read()
 
         def rawfileheader(**map):
             req.header([('Content-type', map['mimetype']),
                         ('Content-disposition', 'filename=%s' % map['file']),
                         ('Content-length', str(len(map['raw'])))])
             yield ''
 
         def footer(**map):
             yield self.t("footer", **map)
 
         def motd(**map):
             yield self.config("web", "motd", "")
 
         def expand_form(form):
             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)]
             }
 
             for k in shortcuts.iterkeys():
                 if form.has_key(k):
                     for name, value in shortcuts[k]:
                         if value is None:
                             value = form[k]
                         form[name] = value
                     del form[k]
 
         def rewrite_request(req):
             '''translate new web interface to traditional format'''
 
             def spliturl(req):
                 def firstitem(query):
                     return query.split('&', 1)[0].split(';', 1)[0]
 
                 def normurl(url):
                     inner = '/'.join([x for x in url.split('/') if x])
                     tl = len(url) > 1 and url.endswith('/') and '/' or ''
 
                     return '%s%s%s' % (url.startswith('/') and '/' or '',
                                        inner, tl)
 
                 root = normurl(urllib.unquote(req.env.get('REQUEST_URI', '').split('?', 1)[0]))
                 pi = normurl(req.env.get('PATH_INFO', ''))
                 if pi:
                     # strip leading /
                     pi = pi[1:]
                     if pi:
                         root = root[:root.rfind(pi)]
                     if req.env.has_key('REPO_NAME'):
                         rn = req.env['REPO_NAME'] + '/'
                         root += rn
                         query = pi[len(rn):]
                     else:
                         query = pi
                 else:
                     root += '?'
                     query = firstitem(req.env['QUERY_STRING'])
 
                 return (root, query)
 
             req.url, query = spliturl(req)
 
             if req.form.has_key('cmd'):
                 # old style
                 return
 
             args = query.split('/', 2)
             if not args or not args[0]:
                 return
 
             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(self, 'do_' + 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_]
 
         def sessionvars(**map):
             fields = []
             if req.form.has_key('style'):
                 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 = ';'
 
         self.refresh()
 
         expand_form(req.form)
         rewrite_request(req)
 
         style = self.config("web", "style", "")
         if req.form.has_key('style'):
             style = req.form['style'][0]
         mapfile = style_map(self.templatepath, style)
 
         port = req.env["SERVER_PORT"]
         port = port != "80" and (":" + port) or ""
         urlbase = 'http://%s%s' % (req.env['SERVER_NAME'], port)
         staticurl = self.config("web", "staticurl") or req.url + 'static/'
         if not staticurl.endswith('/'):
             staticurl += '/'
 
         if not self.reponame:
             self.reponame = (self.config("web", "name")
                              or req.env.get('REPO_NAME')
                              or req.url.strip('/') or self.repo.root)
 
         self.t = templater.templater(mapfile, templater.common_filters,
                                      defaults={"url": req.url,
                                                "staticurl": staticurl,
                                                "urlbase": urlbase,
                                                "repo": self.reponame,
                                                "header": header,
                                                "footer": footer,
                                                "motd": motd,
                                                "rawfileheader": rawfileheader,
                                                "sessionvars": sessionvars
                                                })
 
         try:
             if not req.form.has_key('cmd'):
                 req.form['cmd'] = [self.t.cache['default']]
 
             cmd = req.form['cmd'][0]
 
             method = getattr(self, 'do_' + cmd, None)
             if method:
                 try:
                     method(req)
                 except (hg.RepoError, revlog.RevlogError), inst:
                     req.write(self.t("error", error=str(inst)))
             else:
                 req.write(self.t("error", error='No such method: ' + cmd))
         finally:
             self.t = None
 
     def changectx(self, req):
         if req.form.has_key('node'):
             changeid = req.form['node'][0]
         elif req.form.has_key('manifest'):
             changeid = req.form['manifest'][0]
         else:
             changeid = self.repo.changelog.count() - 1
 
         try:
             ctx = self.repo.changectx(changeid)
         except hg.RepoError:
             man = self.repo.manifest
             mn = man.lookup(changeid)
             ctx = self.repo.changectx(man.linkrev(mn))
 
         return ctx
 
     def filectx(self, req):
         path = self.cleanpath(req.form['file'][0])
         if req.form.has_key('node'):
             changeid = req.form['node'][0]
         else:
             changeid = req.form['filenode'][0]
         try:
             ctx = self.repo.changectx(changeid)
             fctx = ctx.filectx(path)
         except hg.RepoError:
             fctx = self.repo.filectx(path, fileid=changeid)
 
         return fctx
 
     def do_log(self, req):
         if req.form.has_key('file') and req.form['file'][0]:
             self.do_filelog(req)
         else:
             self.do_changelog(req)
 
     def do_rev(self, req):
         self.do_changeset(req)
 
     def do_file(self, req):
         path = self.cleanpath(req.form.get('file', [''])[0])
         if path:
             try:
                 req.write(self.filerevision(self.filectx(req)))
                 return
             except revlog.LookupError:
                 pass
 
         req.write(self.manifest(self.changectx(req), path))
 
     def do_diff(self, req):
         self.do_filediff(req)
 
     def do_changelog(self, req, shortlog = False):
         if req.form.has_key('node'):
             ctx = self.changectx(req)
         else:
             if req.form.has_key('rev'):
                 hi = req.form['rev'][0]
             else:
                 hi = self.repo.changelog.count() - 1
             try:
                 ctx = self.repo.changectx(hi)
             except hg.RepoError:
                 req.write(self.search(hi)) # XXX redirect to 404 page?
                 return
 
         req.write(self.changelog(ctx, shortlog = shortlog))
 
     def do_shortlog(self, req):
         self.do_changelog(req, shortlog = True)
 
     def do_changeset(self, req):
         req.write(self.changeset(self.changectx(req)))
 
     def do_manifest(self, req):
         req.write(self.manifest(self.changectx(req),
                                 self.cleanpath(req.form['path'][0])))
 
     def do_tags(self, req):
         req.write(self.tags())
 
     def do_summary(self, req):
         req.write(self.summary())
 
     def do_filediff(self, req):
         req.write(self.filediff(self.filectx(req)))
 
     def do_annotate(self, req):
         req.write(self.fileannotate(self.filectx(req)))
 
     def do_filelog(self, req):
         req.write(self.filelog(self.filectx(req)))
 
     def do_lookup(self, req):
         try:
             r = hex(self.repo.lookup(req.form['key'][0]))
             success = 1
         except Exception,inst:
             r = str(inst)
             success = 0
         resp = "%s %s\n" % (success, r)
         req.httphdr("application/mercurial-0.1", length=len(resp))
         req.write(resp)
 
     def do_heads(self, req):
         resp = " ".join(map(hex, self.repo.heads())) + "\n"
         req.httphdr("application/mercurial-0.1", length=len(resp))
         req.write(resp)
 
     def do_branches(self, req):
         nodes = []
         if req.form.has_key('nodes'):
             nodes = map(bin, req.form['nodes'][0].split(" "))
         resp = cStringIO.StringIO()
         for b in self.repo.branches(nodes):
             resp.write(" ".join(map(hex, b)) + "\n")
         resp = resp.getvalue()
         req.httphdr("application/mercurial-0.1", length=len(resp))
         req.write(resp)
 
     def do_between(self, req):
         if req.form.has_key('pairs'):
             pairs = [map(bin, p.split("-"))
                      for p in req.form['pairs'][0].split(" ")]
         resp = cStringIO.StringIO()
         for b in self.repo.between(pairs):
             resp.write(" ".join(map(hex, b)) + "\n")
         resp = resp.getvalue()
         req.httphdr("application/mercurial-0.1", length=len(resp))
         req.write(resp)
 
     def do_changegroup(self, req):
         req.httphdr("application/mercurial-0.1")
         nodes = []
         if not self.allowpull:
             return
 
         if req.form.has_key('roots'):
             nodes = map(bin, req.form['roots'][0].split(" "))
 
         z = zlib.compressobj()
         f = self.repo.changegroup(nodes, 'serve')
         while 1:
             chunk = f.read(4096)
             if not chunk:
                 break
             req.write(z.compress(chunk))
 
         req.write(z.flush())
 
     def do_changegroupsubset(self, req):
         req.httphdr("application/mercurial-0.1")
         bases = []
         heads = []
         if not self.allowpull:
             return
 
         if req.form.has_key('bases'):
             bases = [bin(x) for x in req.form['bases'][0].split(' ')]
         if req.form.has_key('heads'):
             heads = [bin(x) for x in req.form['heads'][0].split(' ')]
 
         z = zlib.compressobj()
         f = self.repo.changegroupsubset(bases, heads, 'serve')
         while 1:
             chunk = f.read(4096)
             if not chunk:
                 break
             req.write(z.compress(chunk))
 
         req.write(z.flush())
 
     def do_archive(self, req):
         type_ = req.form['type'][0]
         allowed = self.configlist("web", "allow_archive")
         if (type_ in self.archives and (type_ in allowed or
             self.configbool("web", "allow" + type_, False))):
             self.archive(req, req.form['node'][0], type_)
             return
 
         req.write(self.t("error"))
 
     def do_static(self, req):
         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 = self.config("web", "static",
                              os.path.join(self.templatepath, "static"),
                              untrusted=False)
         req.write(staticfile(static, fname, req)
                   or self.t("error", error="%r not found" % fname))
 
     def do_capabilities(self, req):
         caps = ['lookup', 'changegroupsubset']
         if self.configbool('server', 'uncompressed'):
             caps.append('stream=%d' % self.repo.changelog.version)
         # XXX: make configurable and/or share code with do_unbundle:
         unbundleversions = ['HG10GZ', 'HG10BZ', 'HG10UN']
         if unbundleversions:
             caps.append('unbundle=%s' % ','.join(unbundleversions))
         resp = ' '.join(caps)
         req.httphdr("application/mercurial-0.1", length=len(resp))
         req.write(resp)
 
     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
 
     def do_unbundle(self, req):
         def bail(response, headers={}):
             length = int(req.env['CONTENT_LENGTH'])
             for s in util.filechunkiter(req, limit=length):
                 # drain incoming bundle, else client will not see
                 # response when run outside cgi script
                 pass
             req.httphdr("application/mercurial-0.1", headers=headers)
             req.write('0\n')
             req.write(response)
 
         # require ssl by default, auth info cannot be sniffed and
         # replayed
         ssl_req = self.configbool('web', 'push_ssl', True)
         if ssl_req:
             if not req.env.get('HTTPS'):
                 bail(_('ssl required\n'))
                 return
             proto = 'https'
         else:
             proto = 'http'
 
         # do not allow push unless explicitly allowed
         if not self.check_perm(req, 'push', False):
             bail(_('push not authorized\n'),
                  headers={'status': '401 Unauthorized'})
             return
 
         their_heads = req.form['heads'][0].split(' ')
 
         def check_heads():
             heads = map(hex, self.repo.heads())
             return their_heads == [hex('force')] or their_heads == heads
 
         # fail early if possible
         if not check_heads():
             bail(_('unsynced changes\n'))
             return
 
         req.httphdr("application/mercurial-0.1")
 
         # do not lock repo until all changegroup data is
         # streamed. save to temporary file.
 
         fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-')
         fp = os.fdopen(fd, 'wb+')
         try:
             length = int(req.env['CONTENT_LENGTH'])
             for s in util.filechunkiter(req, limit=length):
                 fp.write(s)
 
             try:
                 lock = self.repo.lock()
                 try:
                     if not check_heads():
                         req.write('0\n')
                         req.write(_('unsynced changes\n'))
                         return
 
                     fp.seek(0)
                     header = fp.read(6)
                     if not header.startswith("HG"):
                         # old client with uncompressed bundle
                         def generator(f):
                             yield header
                             for chunk in f:
                                 yield chunk
                     elif not header.startswith("HG10"):
                         req.write("0\n")
                         req.write(_("unknown bundle version\n"))
                         return
                     elif header == "HG10GZ":
                         def generator(f):
                             zd = zlib.decompressobj()
                             for chunk in f:
                                 yield zd.decompress(chunk)
                     elif header == "HG10BZ":
                         def generator(f):
                             zd = bz2.BZ2Decompressor()
                             zd.decompress("BZ")
                             for chunk in f:
                                 yield zd.decompress(chunk)
                     elif header == "HG10UN":
                         def generator(f):
                             for chunk in f:
                                 yield chunk
                     else:
                         req.write("0\n")
                         req.write(_("unknown bundle compression type\n"))
                         return
                     gen = generator(util.filechunkiter(fp, 4096))
 
                     # send addchangegroup output to client
 
                     old_stdout = sys.stdout
                     sys.stdout = cStringIO.StringIO()
 
                     try:
                         url = 'remote:%s:%s' % (proto,
                                                 req.env.get('REMOTE_HOST', ''))
                         try:
                             ret = self.repo.addchangegroup(
                                         util.chunkbuffer(gen), 'serve', url)
                         except util.Abort, inst:
                             sys.stdout.write("abort: %s\n" % inst)
                             ret = 0
                     finally:
                         val = sys.stdout.getvalue()
                         sys.stdout = old_stdout
                     req.write('%d\n' % ret)
                     req.write(val)
                 finally:
                     lock.release()
             except (OSError, IOError), inst:
                 req.write('0\n')
                 filename = getattr(inst, 'filename', '')
                 # Don't send our filesystem layout to the client
                 if filename.startswith(self.repo.root):
                     filename = filename[len(self.repo.root)+1:]
                 else:
                     filename = ''
                 error = getattr(inst, 'strerror', 'Unknown error')
                 req.write('%s: %s\n' % (error, filename))
         finally:
             fp.close()
             os.unlink(tempname)
 
     def do_stream_out(self, req):
         req.httphdr("application/mercurial-0.1")
         streamclone.stream_out(self.repo, req)

mercurial/templater.py

@@ -1,290 +1,297 b''
 # templater.py - template expansion for output
 #
 # Copyright 2005, 2006 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 i18n import _
 from node import *
 import cgi, re, sys, os, time, urllib, util, textwrap
 
 def parsestring(s, quoted=True):
     '''parse a string using simple c-like syntax.
     string must be in quotes if quoted is True.'''
     if quoted:
         if len(s) < 2 or s[0] != s[-1]:
             raise SyntaxError(_('unmatched quotes'))
         return s[1:-1].decode('string_escape')
 
     return s.decode('string_escape')
 
 class templater(object):
     '''template expansion engine.
 
     template expansion works like this. a map file contains key=value
     pairs. if value is quoted, it is treated as string. otherwise, it
     is treated as name of template file.
 
     templater is asked to expand a key in map. it looks up key, and
     looks for strings like this: {foo}. it expands {foo} by looking up
     foo in map, and substituting it. expansion is recursive: it stops
     when there is no more {foo} to replace.
 
     expansion also allows formatting and filtering.
 
     format uses key to expand each item in list. syntax is
     {key%format}.
 
     filter uses function to transform value. syntax is
     {key|filter1|filter2|...}.'''
 
     template_re = re.compile(r"(?:(?:#(?=[\w\|%]+#))|(?:{(?=[\w\|%]+})))"
                              r"(\w+)(?:(?:%(\w+))|((?:\|\w+)*))[#}]")
 
     def __init__(self, mapfile, filters={}, defaults={}, cache={}):
         '''set up template engine.
         mapfile is name of file to read map definitions from.
         filters is dict of functions. each transforms a value into another.
         defaults is dict of default map definitions.'''
         self.mapfile = mapfile or 'template'
         self.cache = cache.copy()
         self.map = {}
         self.base = (mapfile and os.path.dirname(mapfile)) or ''
         self.filters = filters
         self.defaults = defaults
 
         if not mapfile:
             return
         i = 0
         for l in file(mapfile):
             l = l.strip()
             i += 1
             if not l or l[0] in '#;': continue
             m = re.match(r'([a-zA-Z_][a-zA-Z0-9_]*)\s*=\s*(.+)$', l)
             if m:
                 key, val = m.groups()
                 if val[0] in "'\"":
                     try:
                         self.cache[key] = parsestring(val)
                     except SyntaxError, inst:
                         raise SyntaxError('%s:%s: %s' %
                                           (mapfile, i, inst.args[0]))
                 else:
                     self.map[key] = os.path.join(self.base, val)
             else:
                 raise SyntaxError(_("%s:%s: parse error") % (mapfile, i))
 
     def __contains__(self, key):
         return key in self.cache or key in self.map
 
     def __call__(self, t, **map):
         '''perform expansion.
         t is name of map element to expand.
         map is added elements to use during expansion.'''
         if not self.cache.has_key(t):
             try:
                 self.cache[t] = file(self.map[t]).read()
             except IOError, inst:
                 raise IOError(inst.args[0], _('template file %s: %s') %
                               (self.map[t], inst.args[1]))
         tmpl = self.cache[t]
 
         while tmpl:
             m = self.template_re.search(tmpl)
             if not m:
                 yield tmpl
                 break
 
             start, end = m.span(0)
             key, format, fl = m.groups()
 
             if start:
                 yield tmpl[:start]
             tmpl = tmpl[end:]
 
             if key in map:
                 v = map[key]
             else:
                 v = self.defaults.get(key, "")
             if callable(v):
                 v = v(**map)
             if format:
                 if not hasattr(v, '__iter__'):
                     raise SyntaxError(_("Error expanding '%s%s'")
                                       % (key, format))
                 lm = map.copy()
                 for i in v:
                     lm.update(i)
                     yield self(format, **lm)
             else:
                 if fl:
                     for f in fl.split("|")[1:]:
                         v = self.filters[f](v)
                 yield v
 
 agescales = [("second", 1),
              ("minute", 60),
              ("hour", 3600),
              ("day", 3600 * 24),
              ("week", 3600 * 24 * 7),
              ("month", 3600 * 24 * 30),
              ("year", 3600 * 24 * 365)]
 
 agescales.reverse()
 
 def age(date):
     '''turn a (timestamp, tzoff) tuple into an age string.'''
 
     def plural(t, c):
         if c == 1:
             return t
         return t + "s"
     def fmt(t, c):
         return "%d %s" % (c, plural(t, c))
 
     now = time.time()
     then = date[0]
     delta = max(1, int(now - then))
 
     for t, s in agescales:
         n = delta / s
         if n >= 2 or s == 1:
             return fmt(t, n)
 
 def stringify(thing):
     '''turn nested template iterator into string.'''
     if hasattr(thing, '__iter__'):
         return "".join([stringify(t) for t in thing if t is not None])
     return str(thing)
 
 para_re = None
 space_re = None
 
 def fill(text, width):
     '''fill many paragraphs.'''
     global para_re, space_re
     if para_re is None:
         para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M)
         space_re = re.compile(r'  +')
 
     def findparas():
         start = 0
         while True:
             m = para_re.search(text, start)
             if not m:
                 w = len(text)
                 while w > start and text[w-1].isspace(): w -= 1
                 yield text[start:w], text[w:]
                 break
             yield text[start:m.start(0)], m.group(1)
             start = m.end(1)
 
     return "".join([space_re.sub(' ', textwrap.fill(para, width)) + rest
                     for para, rest in findparas()])
 
 def firstline(text):
     '''return the first line of text'''
     try:
         return text.splitlines(1)[0].rstrip('\r\n')
     except IndexError:
         return ''
 
 def isodate(date):
     '''turn a (timestamp, tzoff) tuple into an iso 8631 date and time.'''
     return util.datestr(date, format='%Y-%m-%d %H:%M')
 
 def hgdate(date):
     '''turn a (timestamp, tzoff) tuple into an hg cset timestamp.'''
     return "%d %d" % date
 
 def nl2br(text):
     '''replace raw newlines with xhtml line breaks.'''
     return text.replace('\n', '<br/>\n')
 
 def obfuscate(text):
     text = unicode(text, util._encoding, 'replace')
     return ''.join(['&#%d;' % ord(c) for c in text])
 
 def domain(author):
     '''get domain of author, or empty string if none.'''
     f = author.find('@')
     if f == -1: return ''
     author = author[f+1:]
     f = author.find('>')
     if f >= 0: author = author[:f]
     return author
 
 def email(author):
     '''get email of author.'''
     r = author.find('>')
     if r == -1: r = None
     return author[author.find('<')+1:r]
 
 def person(author):
     '''get name of author, or else username.'''
     f = author.find('<')
     if f == -1: return util.shortuser(author)
     return author[:f].rstrip()
 
 def shortdate(date):
     '''turn (timestamp, tzoff) tuple into iso 8631 date.'''
     return util.datestr(date, format='%Y-%m-%d', timezone=False)
 
 def indent(text, prefix):
     '''indent each non-empty line of text after first with prefix.'''
     lines = text.splitlines()
     num_lines = len(lines)
     def indenter():
         for i in xrange(num_lines):
             l = lines[i]
             if i and l.strip():
                 yield prefix
             yield l
             if i < num_lines - 1 or text.endswith('\n'):
                 yield '\n'
     return "".join(indenter())
 
+def permissions(flags):
+    if "l" in flags:
+        return "lrwxrwxrwx"
+    if "x" in flags:
+        return "-rwxr-xr-x"
+    return "-rw-r--r--"
+
 common_filters = {
     "addbreaks": nl2br,
     "basename": os.path.basename,
     "age": age,
     "date": lambda x: util.datestr(x),
     "domain": domain,
     "email": email,
     "escape": lambda x: cgi.escape(x, True),
     "fill68": lambda x: fill(x, width=68),
     "fill76": lambda x: fill(x, width=76),
     "firstline": firstline,
     "tabindent": lambda x: indent(x, '\t'),
     "hgdate": hgdate,
     "isodate": isodate,
     "obfuscate": obfuscate,
-    "permissions": lambda x: x and "-rwxr-xr-x" or "-rw-r--r--",
+    "permissions": permissions,
     "person": person,
     "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S"),
     "short": lambda x: x[:12],
     "shortdate": shortdate,
     "stringify": stringify,
     "strip": lambda x: x.strip(),
     "urlescape": lambda x: urllib.quote(x),
     "user": lambda x: util.shortuser(x),
     "stringescape": lambda x: x.encode('string_escape'),
     }
 
 def templatepath(name=None):
     '''return location of template file or directory (if no name).
     returns None if not found.'''
 
     # executable version (py2exe) doesn't support __file__
     if hasattr(sys, 'frozen'):
         module = sys.executable
     else:
         module = __file__
     for f in 'templates', '../templates':
         fl = f.split('/')
         if name: fl.append(name)
         p = os.path.join(os.path.dirname(module), *fl)
         if (name and os.path.exists(p)) or os.path.isdir(p):
             return os.path.normpath(p)
 

tests/test-copy2

@@ -1,53 +1,70 b''
 #!/bin/sh
 
 hg init
 echo foo > foo
+echo "# should fail - foo is not managed"
+hg mv foo bar
+hg st -A
 hg add foo
+echo "# dry-run; print a warning that this is not a real copy; foo is added"
+hg mv --dry-run foo bar
+hg st -A
+echo "# should print a warning that this is not a real copy; bar is added"
+hg mv foo bar
+hg st -A
+echo "# should print a warning that this is not a real copy; foo is added"
+hg cp bar foo
+hg rm -f bar
+rm bar
+hg st -A
 hg commit -m1 -d"0 0"
 
+echo "# dry-run; should show that foo is clean"
+hg copy --dry-run foo bar
+hg st -A
 echo "# should show copy"
 hg copy foo bar
-hg debugstate|grep '^copy'
+hg st -C
 
 echo "# shouldn't show copy"
 hg commit -m2 -d"0 0"
-hg debugstate|grep '^copy'
+hg st -C
 
 echo "# should match"
 hg debugindex .hg/store/data/foo.i
 hg debugrename bar
 
 echo bleah > foo
 echo quux > bar
 hg commit -m3 -d"0 0"
 
 echo "# should not be renamed"
 hg debugrename bar
 
 hg copy -f foo bar
 echo "# should show copy"
-hg debugstate|grep '^copy'
+hg st -C
 hg commit -m3 -d"0 0"
 
 echo "# should show no parents for tip"
 hg debugindex .hg/store/data/bar.i
 echo "# should match"
 hg debugindex .hg/store/data/foo.i
 hg debugrename bar
 
 echo "# should show no copies"
-hg debugstate|grep '^copy'
+hg st -C
 
 echo "# copy --after on an added file"
 cp bar baz
 hg add baz
 hg cp -A bar baz
 hg st -C
 
 echo "# foo was clean:"
 hg st -AC foo
 echo "# but it's considered modified after a copy --after --force"
 hg copy -Af bar foo
 hg st -AC foo
 
 exit 0

tests/test-copy2.out

@@ -1,30 +1,47 b''
+# should fail - foo is not managed
+foo: not copying - file is not managed
+abort: no files to copy
+? foo
+# dry-run; print a warning that this is not a real copy; foo is added
+foo was marked for addition. bar will not be committed as a copy.
+A foo
+# should print a warning that this is not a real copy; bar is added
+foo was marked for addition. bar will not be committed as a copy.
+A bar
+# should print a warning that this is not a real copy; foo is added
+bar was marked for addition. foo will not be committed as a copy.
+A foo
+# dry-run; should show that foo is clean
+C foo
 # should show copy
-copy: foo -> bar
+A bar
+  foo
 # shouldn't show copy
 # should match
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0       5      0       0 2ed2a3912a0b 000000000000 000000000000
 bar renamed from foo:2ed2a3912a0b24502043eae84ee4b279c18b90dd
 # should not be renamed
 bar not renamed
 # should show copy
-copy: foo -> bar
+M bar
+  foo
 # should show no parents for tip
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      69      0       1 6ca237634e1f 000000000000 000000000000
      1        69       6      1       2 7a1ff8e75f5b 6ca237634e1f 000000000000
      2        75      82      1       3 243dfe60f3d9 000000000000 000000000000
 # should match
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0       5      0       0 2ed2a3912a0b 000000000000 000000000000
      1         5       7      1       2 dd12c926cf16 2ed2a3912a0b 000000000000
 bar renamed from foo:dd12c926cf165e3eb4cf87b084955cb617221c17
 # should show no copies
 # copy --after on an added file
 A baz
   bar
 # foo was clean:
 C foo
 # but it's considered modified after a copy --after --force
 M foo
   bar

tests/test-rename

@@ -1,211 +1,210 b''
 #!/bin/sh
 
 hg init
 mkdir d1 d1/d11 d2
 echo d1/a > d1/a
 echo d1/ba > d1/ba
 echo d1/a1 > d1/d11/a1
 echo d1/b > d1/b
 echo d2/b > d2/b
 hg add d1/a d1/b d1/ba d1/d11/a1 d2/b
 hg commit -m "1" -d "1000000 0"
 
 echo "# rename a single file"
 hg rename d1/d11/a1 d2/c
-hg status
+hg status -C
 hg update -C
 
 echo "# rename --after a single file"
 mv d1/d11/a1 d2/c
 hg rename --after d1/d11/a1 d2/c
-hg status
+hg status -C
 hg update -C
 
 echo "# move a single file to an existing directory"
 hg rename d1/d11/a1 d2
-hg status
+hg status -C
 hg update -C
 
 echo "# move --after a single file to an existing directory"
 mv d1/d11/a1 d2
 hg rename --after d1/d11/a1 d2
-hg status
+hg status -C
 hg update -C
 
 echo "# rename a file using a relative path"
 (cd d1/d11; hg rename ../../d2/b e)
-hg status
+hg status -C
 hg update -C
 
 echo "# rename --after a file using a relative path"
 (cd d1/d11; mv ../../d2/b e; hg rename --after ../../d2/b e)
-hg status
+hg status -C
 hg update -C
 
 echo "# rename directory d1 as d3"
 hg rename d1/ d3
-hg status
+hg status -C
 hg update -C
 
 echo "# rename --after directory d1 as d3"
 mv d1 d3
 hg rename --after d1 d3
-hg status
+hg status -C
 hg update -C
 
 echo "# move a directory using a relative path"
 (cd d2; mkdir d3; hg rename ../d1/d11 d3)
-hg status
+hg status -C
 hg update -C
 
 echo "# move --after a directory using a relative path"
 (cd d2; mkdir d3; mv ../d1/d11 d3; hg rename --after ../d1/d11 d3)
-hg status
+hg status -C
 hg update -C
 
 echo "# move directory d1/d11 to an existing directory d2 (removes empty d1)"
 hg rename d1/d11/ d2
-hg status
+hg status -C
 hg update -C
 
 echo "# move directories d1 and d2 to a new directory d3"
 mkdir d3
 hg rename d1 d2 d3
-hg status
+hg status -C
 hg update -C
 
 echo "# move --after directories d1 and d2 to a new directory d3"
 mkdir d3
 mv d1 d2 d3
 hg rename --after d1 d2 d3
-hg status
+hg status -C
 hg update -C
 
 echo "# move everything under directory d1 to existing directory d2, do not"
 echo "# overwrite existing files (d2/b)"
 hg rename d1/* d2
-hg status
+hg status -C
 diff d1/b d2/b
 hg update -C
 
 echo "# attempt to move potentially more than one file into a non-existent"
 echo "# directory"
 hg rename 'glob:d1/**' dx
 
 echo "# move every file under d1 to d2/d21 (glob)"
 mkdir d2/d21
 hg rename 'glob:d1/**' d2/d21
-hg status
+hg status -C
 hg update -C
 
 echo "# move --after some files under d1 to d2/d21 (glob)"
 mkdir d2/d21
 mv d1/a d1/d11/a1 d2/d21
 hg rename --after 'glob:d1/**' d2/d21
-hg status
+hg status -C
 hg update -C
 
 echo "# move every file under d1 starting with an 'a' to d2/d21 (regexp)"
 mkdir d2/d21
 hg rename 're:d1/([^a][^/]*/)*a.*' d2/d21
-hg status
+hg status -C
 hg update -C
 
 echo "# attempt to overwrite an existing file"
 echo "ca" > d1/ca
 hg rename d1/ba d1/ca
-hg status
+hg status -C
 hg update -C
 
 echo "# forced overwrite of an existing file"
 echo "ca" > d1/ca
 hg rename --force d1/ba d1/ca
-hg status
+hg status -C
 hg update -C
 
 echo "# replace a symlink with a file"
 ln -s ba d1/ca
 hg rename --force d1/ba d1/ca
-hg status
+hg status -C
 hg update -C
 
 echo "# do not copy more than one source file to the same destination file"
 mkdir d3
 hg rename d1/* d2/* d3
-hg status
+hg status -C
 hg update -C
 
 echo "# move a whole subtree with \"hg rename .\""
 mkdir d3
 (cd d1; hg rename . ../d3)
-hg status
+hg status -C
 hg update -C
 
 echo "# move a whole subtree with \"hg rename --after .\""
 mkdir d3
 mv d1/* d3
 (cd d1; hg rename --after . ../d3)
-hg status
+hg status -C
 hg update -C
 
 echo "# move the parent tree with \"hg rename ..\""
 (cd d1/d11; hg rename .. ../../d3)
-hg status
+hg status -C
 hg update -C
 
 echo "# skip removed files"
 hg remove d1/b
 hg rename d1 d3
-hg status
+hg status -C
 hg update -C
 
 echo "# transitive rename"
 hg rename d1/b d1/bb
 hg rename d1/bb d1/bc
-hg status
+hg status -C
 hg update -C
 
 echo "# transitive rename --after"
 hg rename d1/b d1/bb
 mv d1/bb d1/bc
 hg rename --after d1/bb d1/bc
-hg status
+hg status -C
 hg update -C
 
 echo "# idempotent renames (d1/b -> d1/bb followed by d1/bb -> d1/b)"
 hg rename d1/b d1/bb
 echo "some stuff added to d1/bb" >> d1/bb
 hg rename d1/bb d1/b
-hg status
-hg debugstate | grep copy
+hg status -C
 hg update -C
 
 echo "# check illegal path components"
 
 hg rename d1/d11/a1 .hg/foo
-hg status
+hg status -C
 hg rename d1/d11/a1 ../foo
-hg status
+hg status -C
 
 mv d1/d11/a1 .hg/foo
 hg rename --after d1/d11/a1 .hg/foo
-hg status
+hg status -C
 hg update -C
 rm .hg/foo
 
 hg rename d1/d11/a1 .hg
-hg status
+hg status -C
 hg rename d1/d11/a1 ..
-hg status
+hg status -C
 
 mv d1/d11/a1 .hg
 hg rename --after d1/d11/a1 .hg
-hg status
+hg status -C
 hg update -C
 rm .hg/a1
 
 (cd d1/d11; hg rename ../../d2/b ../../.hg/foo)
-hg status
+hg status -C
 (cd d1/d11; hg rename ../../d2/b ../../../foo)
-hg status
+hg status -C
 

tests/test-rename.out

@@ -1,297 +1,358 b''
 # rename a single file
 A d2/c
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # rename --after a single file
 A d2/c
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # move a single file to an existing directory
 A d2/a1
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # move --after a single file to an existing directory
 A d2/a1
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # rename a file using a relative path
 A d1/d11/e
+  d2/b
 R d2/b
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # rename --after a file using a relative path
 A d1/d11/e
+  d2/b
 R d2/b
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # rename directory d1 as d3
 copying d1/a to d3/a
 copying d1/b to d3/b
 copying d1/ba to d3/ba
 copying d1/d11/a1 to d3/d11/a1
 removing d1/a
 removing d1/b
 removing d1/ba
 removing d1/d11/a1
 A d3/a
+  d1/a
 A d3/b
+  d1/b
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # rename --after directory d1 as d3
 copying d1/a to d3/a
 copying d1/b to d3/b
 copying d1/ba to d3/ba
 copying d1/d11/a1 to d3/d11/a1
 removing d1/a
 removing d1/b
 removing d1/ba
 removing d1/d11/a1
 A d3/a
+  d1/a
 A d3/b
+  d1/b
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # move a directory using a relative path
 copying ../d1/d11/a1 to d3/d11/a1
 removing ../d1/d11/a1
 A d2/d3/d11/a1
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # move --after a directory using a relative path
 copying ../d1/d11/a1 to d3/d11/a1
 removing ../d1/d11/a1
 A d2/d3/d11/a1
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # move directory d1/d11 to an existing directory d2 (removes empty d1)
 copying d1/d11/a1 to d2/d11/a1
 removing d1/d11/a1
 A d2/d11/a1
+  d1/d11/a1
 R d1/d11/a1
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # move directories d1 and d2 to a new directory d3
 copying d1/a to d3/d1/a
 copying d1/b to d3/d1/b
 copying d1/ba to d3/d1/ba
 copying d1/d11/a1 to d3/d1/d11/a1
 copying d2/b to d3/d2/b
 removing d1/a
 removing d1/b
 removing d1/ba
 removing d1/d11/a1
 removing d2/b
 A d3/d1/a
+  d1/a
 A d3/d1/b
+  d1/b
 A d3/d1/ba
+  d1/ba
 A d3/d1/d11/a1
+  d1/d11/a1
 A d3/d2/b
+  d2/b
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 R d2/b
 5 files updated, 0 files merged, 5 files removed, 0 files unresolved
 # move --after directories d1 and d2 to a new directory d3
 copying d1/a to d3/d1/a
 copying d1/b to d3/d1/b
 copying d1/ba to d3/d1/ba
 copying d1/d11/a1 to d3/d1/d11/a1
 copying d2/b to d3/d2/b
 removing d1/a
 removing d1/b
 removing d1/ba
 removing d1/d11/a1
 removing d2/b
 A d3/d1/a
+  d1/a
 A d3/d1/b
+  d1/b
 A d3/d1/ba
+  d1/ba
 A d3/d1/d11/a1
+  d1/d11/a1
 A d3/d2/b
+  d2/b
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 R d2/b
 5 files updated, 0 files merged, 5 files removed, 0 files unresolved
 # move everything under directory d1 to existing directory d2, do not
 # overwrite existing files (d2/b)
 d2/b: not overwriting - file exists
 copying d1/d11/a1 to d2/d11/a1
 removing d1/d11/a1
 A d2/a
+  d1/a
 A d2/ba
+  d1/ba
 A d2/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/ba
 R d1/d11/a1
 1c1
 < d1/b
 ---
 > d2/b
 3 files updated, 0 files merged, 3 files removed, 0 files unresolved
 # attempt to move potentially more than one file into a non-existent
 # directory
 abort: with multiple sources, destination must be an existing directory
 # move every file under d1 to d2/d21 (glob)
 copying d1/a to d2/d21/a
 copying d1/b to d2/d21/b
 copying d1/ba to d2/d21/ba
 copying d1/d11/a1 to d2/d21/a1
 removing d1/a
 removing d1/b
 removing d1/ba
 removing d1/d11/a1
 A d2/d21/a
+  d1/a
 A d2/d21/a1
+  d1/d11/a1
 A d2/d21/b
+  d1/b
 A d2/d21/ba
+  d1/ba
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # move --after some files under d1 to d2/d21 (glob)
 copying d1/a to d2/d21/a
 copying d1/d11/a1 to d2/d21/a1
 removing d1/a
 removing d1/d11/a1
 A d2/d21/a
+  d1/a
 A d2/d21/a1
+  d1/d11/a1
 R d1/a
 R d1/d11/a1
 2 files updated, 0 files merged, 2 files removed, 0 files unresolved
 # move every file under d1 starting with an 'a' to d2/d21 (regexp)
 copying d1/a to d2/d21/a
 copying d1/d11/a1 to d2/d21/a1
 removing d1/a
 removing d1/d11/a1
 A d2/d21/a
+  d1/a
 A d2/d21/a1
+  d1/d11/a1
 R d1/a
 R d1/d11/a1
 2 files updated, 0 files merged, 2 files removed, 0 files unresolved
 # attempt to overwrite an existing file
 d1/ca: not overwriting - file exists
 ? d1/ca
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 # forced overwrite of an existing file
 A d1/ca
+  d1/ba
 R d1/ba
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # replace a symlink with a file
 A d1/ca
+  d1/ba
 R d1/ba
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # do not copy more than one source file to the same destination file
 copying d1/d11/a1 to d3/d11/a1
 d3/b: not overwriting - d2/b collides with d1/b
 removing d1/d11/a1
 A d3/a
+  d1/a
 A d3/b
+  d1/b
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # move a whole subtree with "hg rename ."
 copying a to ../d3/d1/a
 copying b to ../d3/d1/b
 copying ba to ../d3/d1/ba
 copying d11/a1 to ../d3/d1/d11/a1
 removing a
 removing b
 removing ba
 removing d11/a1
 A d3/d1/a
+  d1/a
 A d3/d1/b
+  d1/b
 A d3/d1/ba
+  d1/ba
 A d3/d1/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # move a whole subtree with "hg rename --after ."
 copying a to ../d3/a
 copying b to ../d3/b
 copying ba to ../d3/ba
 copying d11/a1 to ../d3/d11/a1
 removing a
 removing b
 removing ba
 removing d11/a1
 A d3/a
+  d1/a
 A d3/b
+  d1/b
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # move the parent tree with "hg rename .."
 copying ../a to ../../d3/a
 copying ../b to ../../d3/b
 copying ../ba to ../../d3/ba
 copying a1 to ../../d3/d11/a1
 removing ../a
 removing ../b
 removing ../ba
 removing a1
 A d3/a
+  d1/a
 A d3/b
+  d1/b
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 4 files removed, 0 files unresolved
 # skip removed files
 copying d1/a to d3/a
 copying d1/ba to d3/ba
 copying d1/d11/a1 to d3/d11/a1
 removing d1/a
 removing d1/ba
 removing d1/d11/a1
 A d3/a
+  d1/a
 A d3/ba
+  d1/ba
 A d3/d11/a1
+  d1/d11/a1
 R d1/a
 R d1/b
 R d1/ba
 R d1/d11/a1
 4 files updated, 0 files merged, 3 files removed, 0 files unresolved
 # transitive rename
 A d1/bc
+  d1/b
 R d1/b
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # transitive rename --after
 A d1/bc
+  d1/b
 R d1/b
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 # idempotent renames (d1/b -> d1/bb followed by d1/bb -> d1/b)
 M d1/b
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 # check illegal path components
 abort: path contains illegal component: .hg/foo
 abort: ../foo not under root
 abort: path contains illegal component: .hg/foo
 ! d1/d11/a1
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 abort: path contains illegal component: .hg/a1
 abort: ../a1 not under root
 abort: path contains illegal component: .hg/a1
 ! d1/d11/a1
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 abort: path contains illegal component: .hg/foo
 abort: ../../../foo not under root