merge with crew

hgext/churn.py

@@ -1,184 +1,184
 # churn.py - create a graph of revisions count grouped by template
 #
 # Copyright 2006 Josef "Jeff" Sipek <[e-mail]>
 # Copyright 2008 Alexander Solovyov <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
-'''allow graphing the number of lines (or count of revisions) grouped by template'''
+'''command to show certain statistics about revision history'''
 
 from mercurial.i18n import _
 from mercurial import patch, cmdutil, util, templater
 import os, sys
 import time, datetime
 
 def get_tty_width():
     if 'COLUMNS' in os.environ:
         try:
             return int(os.environ['COLUMNS'])
         except ValueError:
             pass
     try:
         import termios, array, fcntl
         for dev in (sys.stdout, sys.stdin):
             try:
                 fd = dev.fileno()
                 if not os.isatty(fd):
                     continue
                 arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
                 return array.array('h', arri)[1]
             except ValueError:
                 pass
     except ImportError:
         pass
     return 80
 
 def maketemplater(ui, repo, tmpl):
     tmpl = templater.parsestring(tmpl, quoted=False)
     try:
         t = cmdutil.changeset_templater(ui, repo, False, None, False)
     except SyntaxError, inst:
         raise util.Abort(inst.args[0])
     t.use_template(tmpl)
     return t
 
 def changedlines(ui, repo, ctx1, ctx2):
     lines = 0
     ui.pushbuffer()
     patch.diff(repo, ctx1.node(), ctx2.node())
     diff = ui.popbuffer()
     for l in diff.split('\n'):
         if (l.startswith("+") and not l.startswith("+++ ") or
             l.startswith("-") and not l.startswith("--- ")):
             lines += 1
     return lines
 
 def countrate(ui, repo, amap, *pats, **opts):
     """Calculate stats"""
     if opts.get('dateformat'):
         def getkey(ctx):
             t, tz = ctx.date()
             date = datetime.datetime(*time.gmtime(float(t) - tz)[:6])
             return date.strftime(opts['dateformat'])
     else:
         tmpl = opts.get('template', '{author|email}')
         tmpl = maketemplater(ui, repo, tmpl)
         def getkey(ctx):
             ui.pushbuffer()
             tmpl.show(changenode=ctx.node())
             return ui.popbuffer()
 
     count = pct = 0
     rate = {}
     df = False
     if opts.get('date'):
         df = util.matchdate(opts['date'])
 
     get = util.cachefunc(lambda r: repo[r].changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
     for st, rev, fns in changeiter:
         if not st == 'add':
             continue
         if df and not df(get(rev)[2][0]): # doesn't match date format
             continue
 
         ctx = repo[rev]
         key = getkey(ctx)
         key = amap.get(key, key) # alias remap
         if opts.get('changesets'):
             rate[key] = rate.get(key, 0) + 1
         else:
             parents = ctx.parents()
             if len(parents) > 1:
                 ui.note(_('Revision %d is a merge, ignoring...\n') % (rev,))
                 continue
 
             ctx1 = parents[0]
             lines = changedlines(ui, repo, ctx1, ctx)
             rate[key] = rate.get(key, 0) + lines
 
         if opts.get('progress'):
             count += 1
             newpct = int(100.0 * count / max(len(repo), 1))
             if pct < newpct:
                 pct = newpct
                 ui.write(_("\rGenerating stats: %d%%") % pct)
                 sys.stdout.flush()
 
     if opts.get('progress'):
         ui.write("\r")
         sys.stdout.flush()
 
     return rate
 
 
 def churn(ui, repo, *pats, **opts):
     '''Graph count of revisions grouped by template
 
     Will graph count of changed lines or revisions grouped by template or
     alternatively by date, if dateformat is used. In this case it will override
     template.
 
     By default statistics are counted for number of changed lines.
 
     Examples:
 
       # display count of changed lines for every committer
       hg churn -t '{author|email}'
 
       # display daily activity graph
       hg churn -f '%H' -s -c
 
       # display activity of developers by month
       hg churn -f '%Y-%m' -s -c
 
       # display count of lines changed in every year
       hg churn -f '%Y' -s
 
     The map file format used to specify aliases is fairly simple:
 
     <alias email> <actual email>'''
     def pad(s, l):
         return (s + " " * l)[:l]
 
     amap = {}
     aliases = opts.get('aliases')
     if aliases:
         for l in open(aliases, "r"):
             l = l.strip()
             alias, actual = l.split()
             amap[alias] = actual
 
     rate = countrate(ui, repo, amap, *pats, **opts).items()
     if not rate:
         return
 
     sortfn = ((not opts.get('sort')) and (lambda a, b: cmp(b[1], a[1])) or None)
     rate.sort(sortfn)
 
     maxcount = float(max([v for k, v in rate]))
     maxname = max([len(k) for k, v in rate])
 
     ttywidth = get_tty_width()
     ui.debug(_("assuming %i character terminal\n") % ttywidth)
     width = ttywidth - maxname - 2 - 6 - 2 - 2
 
     for date, count in rate:
         print "%s %6d %s" % (pad(date, maxname), count,
                              "*" * int(count * width / maxcount))
 
 
 cmdtable = {
     "churn":
         (churn,
          [('r', 'rev', [], _('count rate for the specified revision or range')),
           ('d', 'date', '', _('count rate for revs matching date spec')),
           ('t', 'template', '{author|email}', _('template to group changesets')),
           ('f', 'dateformat', '',
               _('strftime-compatible format for grouping by date')),
           ('c', 'changesets', False, _('count rate by number of changesets')),
           ('s', 'sort', False, _('sort by key (default: sort by count)')),
           ('', 'aliases', '', _('file with email aliases')),
           ('', 'progress', None, _('show progress'))],
-         _("hg stats [-d DATE] [-r REV] [--aliases FILE] [--progress] [FILE]")),
+         _("hg churn [-d DATE] [-r REV] [--aliases FILE] [--progress] [FILE]")),
 }

hgext/highlight/__init__.py

@@ -1,61 +1,61
-"""a mercurial extension for syntax highlighting in hgweb
+"""syntax highlighting in hgweb, based on Pygments
 
 It depends on the pygments syntax highlighting library:
 http://pygments.org/
 
 To enable the extension add this to hgrc:
 
 [extensions]
 hgext.highlight =
 
 There is a single configuration option:
 
 [web]
 pygments_style = <style>
 
 The default is 'colorful'.
 
 -- Adam Hupp <[e-mail]>
 """
 
 import highlight
 from mercurial.hgweb import webcommands, webutil, common
 
 web_filerevision = webcommands._filerevision
 web_annotate = webcommands.annotate
 
 def filerevision_highlight(web, tmpl, fctx):
     mt = ''.join(tmpl('mimetype', encoding=web.encoding))
     # only pygmentize for mimetype containing 'html' so we both match
     # 'text/html' and possibly 'application/xhtml+xml' in the future
     # so that we don't have to touch the extension when the mimetype
     # for a template changes; also hgweb optimizes the case that a
     # raw file is sent using rawfile() and doesn't call us, so we
     # can't clash with the file's content-type here in case we
     # pygmentize a html file
     if 'html' in mt:
         style = web.config('web', 'pygments_style', 'colorful')
         highlight.pygmentize('fileline', fctx, style, tmpl)
     return web_filerevision(web, tmpl, fctx)
 
 def annotate_highlight(web, req, tmpl):
     mt = ''.join(tmpl('mimetype', encoding=web.encoding))
     if 'html' in mt:
         fctx = webutil.filectx(web.repo, req)
         style = web.config('web', 'pygments_style', 'colorful')
         highlight.pygmentize('annotateline', fctx, style, tmpl)
     return web_annotate(web, req, tmpl)
 
 def generate_css(web, req, tmpl):
     pg_style = web.config('web', 'pygments_style', 'colorful')
     fmter = highlight.HtmlFormatter(style = pg_style)
     req.respond(common.HTTP_OK, 'text/css')
     return ['/* pygments_style = %s */\n\n' % pg_style, fmter.get_style_defs('')]
 
 
 # monkeypatch in the new version
 
 webcommands._filerevision = filerevision_highlight
 webcommands.annotate = annotate_highlight
 webcommands.highlightcss = generate_css
 webcommands.__all__.append('highlightcss')

hgext/notify.py

@@ -1,288 +1,287
 # notify.py - email notifications for mercurial
 #
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
-#
-# hook extension to email notifications to people when changesets are
-# committed to a repo they subscribe to.
-#
-# default mode is to print messages to stdout, for testing and
-# configuring.
-#
-# to use, configure notify extension and enable in hgrc like this:
-#
-#   [extensions]
-#   hgext.notify =
-#
-#   [hooks]
-#   # one email for each incoming changeset
-#   incoming.notify = python:hgext.notify.hook
-#   # batch emails when many changesets incoming at one time
-#   changegroup.notify = python:hgext.notify.hook
-#
-#   [notify]
-#   # config items go in here
-#
-# config items:
-#
-# REQUIRED:
-#   config = /path/to/file # file containing subscriptions
-#
-# OPTIONAL:
-#   test = True            # print messages to stdout for testing
-#   strip = 3              # number of slashes to strip for url paths
-#   domain = example.com   # domain to use if committer missing domain
-#   style = ...            # style file to use when formatting email
-#   template = ...         # template to use when formatting email
-#   incoming = ...         # template to use when run as incoming hook
-#   changegroup = ...      # template when run as changegroup hook
-#   maxdiff = 300          # max lines of diffs to include (0=none, -1=all)
-#   maxsubject = 67        # truncate subject line longer than this
-#   diffstat = True        # add a diffstat before the diff content
-#   sources = serve        # notify if source of incoming changes in this list
-#                          # (serve == ssh or http, push, pull, bundle)
-#   [email]
-#   from = [e-mail]   # email address to send as if none given
-#   [web]
-#   baseurl = http://hgserver/... # root of hg web site for browsing commits
-#
-# notify config file has same format as regular hgrc. it has two
-# sections so you can express subscriptions in whatever way is handier
-# for you.
-#
-#   [usersubs]
-#   # key is subscriber email, value is ","-separated list of glob patterns
-#   user@host = pattern
-#
-#   [reposubs]
-#   # key is glob pattern, value is ","-separated list of subscriber emails
-#   pattern = user@host
-#
-# glob patterns are matched against path to repo root.
-#
-# if you like, you can put notify config file in repo that users can
-# push changes to, they can manage their own subscriptions.
+
+'''hook extension to email notifications on commits/pushes
+
+Subscriptions can be managed through hgrc. Default mode is to print
+messages to stdout, for testing and configuring.
+
+To use, configure notify extension and enable in hgrc like this:
+
+   [extensions]
+   hgext.notify =
+
+   [hooks]
+   # one email for each incoming changeset
+   incoming.notify = python:hgext.notify.hook
+   # batch emails when many changesets incoming at one time
+   changegroup.notify = python:hgext.notify.hook
+
+   [notify]
+   # config items go in here
+
+ config items:
+
+ REQUIRED:
+   config = /path/to/file # file containing subscriptions
+
+ OPTIONAL:
+   test = True            # print messages to stdout for testing
+   strip = 3              # number of slashes to strip for url paths
+   domain = example.com   # domain to use if committer missing domain
+   style = ...            # style file to use when formatting email
+   template = ...         # template to use when formatting email
+   incoming = ...         # template to use when run as incoming hook
+   changegroup = ...      # template when run as changegroup hook
+   maxdiff = 300          # max lines of diffs to include (0=none, -1=all)
+   maxsubject = 67        # truncate subject line longer than this
+   diffstat = True        # add a diffstat before the diff content
+   sources = serve        # notify if source of incoming changes in this list
+                          # (serve == ssh or http, push, pull, bundle)
+   [email]
+   from = [e-mail]   # email address to send as if none given
+   [web]
+   baseurl = http://hgserver/... # root of hg web site for browsing commits
+
+ notify config file has same format as regular hgrc. it has two
+ sections so you can express subscriptions in whatever way is handier
+ for you.
+
+   [usersubs]
+   # key is subscriber email, value is ","-separated list of glob patterns
+   user@host = pattern
+
+   [reposubs]
+   # key is glob pattern, value is ","-separated list of subscriber emails
+   pattern = user@host
+
+ glob patterns are matched against path to repo root.
+
+ if you like, you can put notify config file in repo that users can
+ push changes to, they can manage their own subscriptions.'''
 
 from mercurial.i18n import _
 from mercurial.node import bin, short
 from mercurial import patch, cmdutil, templater, util, mail
 import email.Parser, fnmatch, socket, time
 
 # template for single changeset can include email headers.
 single_template = '''
 Subject: changeset in {webroot}: {desc|firstline|strip}
 From: {author}
 
 changeset {node|short} in {root}
 details: {baseurl}{webroot}?cmd=changeset;node={node|short}
 description:
 \t{desc|tabindent|strip}
 '''.lstrip()
 
 # template for multiple changesets should not contain email headers,
 # because only first set of headers will be used and result will look
 # strange.
 multiple_template = '''
 changeset {node|short} in {root}
 details: {baseurl}{webroot}?cmd=changeset;node={node|short}
 summary: {desc|firstline}
 '''
 
 deftemplates = {
     'changegroup': multiple_template,
 }
 
 class notifier(object):
     '''email notification class.'''
 
     def __init__(self, ui, repo, hooktype):
         self.ui = ui
         cfg = self.ui.config('notify', 'config')
         if cfg:
             self.ui.readsections(cfg, 'usersubs', 'reposubs')
         self.repo = repo
         self.stripcount = int(self.ui.config('notify', 'strip', 0))
         self.root = self.strip(self.repo.root)
         self.domain = self.ui.config('notify', 'domain')
         self.charsets = mail._charsets(self.ui)
         self.subs = self.subscribers()
 
         mapfile = self.ui.config('notify', 'style')
         template = (self.ui.config('notify', hooktype) or
                     self.ui.config('notify', 'template'))
         self.t = cmdutil.changeset_templater(self.ui, self.repo,
                                              False, mapfile, False)
         if not mapfile and not template:
             template = deftemplates.get(hooktype) or single_template
         if template:
             template = templater.parsestring(template, quoted=False)
             self.t.use_template(template)
 
     def strip(self, path):
         '''strip leading slashes from local path, turn into web-safe path.'''
 
         path = util.pconvert(path)
         count = self.stripcount
         while count > 0:
             c = path.find('/')
             if c == -1:
                 break
             path = path[c+1:]
             count -= 1
         return path
 
     def fixmail(self, addr):
         '''try to clean up email addresses.'''
 
         addr = util.email(addr.strip())
         if self.domain:
             a = addr.find('@localhost')
             if a != -1:
                 addr = addr[:a]
             if '@' not in addr:
                 return addr + '@' + self.domain
         return addr
 
     def subscribers(self):
         '''return list of email addresses of subscribers to this repo.'''
 
         subs = {}
         for user, pats in self.ui.configitems('usersubs'):
             for pat in pats.split(','):
                 if fnmatch.fnmatch(self.repo.root, pat.strip()):
                     subs[self.fixmail(user)] = 1
         for pat, users in self.ui.configitems('reposubs'):
             if fnmatch.fnmatch(self.repo.root, pat):
                 for user in users.split(','):
                     subs[self.fixmail(user)] = 1
         subs = util.sort(subs)
         return [mail.addressencode(self.ui, s, self.charsets) for s in subs]
 
     def url(self, path=None):
         return self.ui.config('web', 'baseurl') + (path or self.root)
 
     def node(self, node):
         '''format one changeset.'''
 
         self.t.show(changenode=node, changes=self.repo.changelog.read(node),
                     baseurl=self.ui.config('web', 'baseurl'),
                     root=self.repo.root,
                     webroot=self.root)
 
     def skipsource(self, source):
         '''true if incoming changes from this source should be skipped.'''
         ok_sources = self.ui.config('notify', 'sources', 'serve').split()
         return source not in ok_sources
 
     def send(self, node, count, data):
         '''send message.'''
 
         p = email.Parser.Parser()
         msg = p.parsestr(data)
 
         # store sender and subject
         sender, subject = msg['From'], msg['Subject']
         # create fresh mime message from msg body
         text = msg.get_payload()
         # for notification prefer readability over data precision
         msg = mail.mimeencode(self.ui, text, self.charsets)
 
         def fix_subject(subject):
             '''try to make subject line exist and be useful.'''
 
             if not subject:
                 if count > 1:
                     subject = _('%s: %d new changesets') % (self.root, count)
                 else:
                     changes = self.repo.changelog.read(node)
                     s = changes[4].lstrip().split('\n', 1)[0].rstrip()
                     subject = '%s: %s' % (self.root, s)
             maxsubject = int(self.ui.config('notify', 'maxsubject', 67))
             if maxsubject and len(subject) > maxsubject:
                 subject = subject[:maxsubject-3] + '...'
             msg['Subject'] = mail.headencode(self.ui, subject, self.charsets)
 
         def fix_sender(sender):
             '''try to make message have proper sender.'''
 
             if not sender:
                 sender = self.ui.config('email', 'from') or self.ui.username()
             if '@' not in sender or '@localhost' in sender:
                 sender = self.fixmail(sender)
             msg['From'] = mail.addressencode(self.ui, sender, self.charsets)
 
         msg['Date'] = util.datestr(format="%a, %d %b %Y %H:%M:%S %1%2")
         fix_subject(subject)
         fix_sender(sender)
 
         msg['X-Hg-Notification'] = 'changeset ' + short(node)
         if not msg['Message-Id']:
             msg['Message-Id'] = ('<hg.%s.%s.%s@%s>' %
                                  (short(node), int(time.time()),
                                   hash(self.repo.root), socket.getfqdn()))
         msg['To'] = ', '.join(self.subs)
 
         msgtext = msg.as_string(0)
         if self.ui.configbool('notify', 'test', True):
             self.ui.write(msgtext)
             if not msgtext.endswith('\n'):
                 self.ui.write('\n')
         else:
             self.ui.status(_('notify: sending %d subscribers %d changes\n') %
                            (len(self.subs), count))
             mail.sendmail(self.ui, util.email(msg['From']),
                           self.subs, msgtext)
 
     def diff(self, node, ref):
         maxdiff = int(self.ui.config('notify', 'maxdiff', 300))
         prev = self.repo.changelog.parents(node)[0]
 
         self.ui.pushbuffer()
         patch.diff(self.repo, prev, ref, opts=patch.diffopts(self.ui))
         difflines = self.ui.popbuffer().splitlines()
 
         if self.ui.configbool('notify', 'diffstat', True):
             s = patch.diffstat(difflines)
             # s may be nil, don't include the header if it is
             if s:
                 self.ui.write('\ndiffstat:\n\n%s' % s)
         if maxdiff == 0:
             return
         if maxdiff > 0 and len(difflines) > maxdiff:
             self.ui.write(_('\ndiffs (truncated from %d to %d lines):\n\n') %
                           (len(difflines), maxdiff))
             difflines = difflines[:maxdiff]
         elif difflines:
             self.ui.write(_('\ndiffs (%d lines):\n\n') % len(difflines))
         self.ui.write("\n".join(difflines))
 
 def hook(ui, repo, hooktype, node=None, source=None, **kwargs):
     '''send email notifications to interested subscribers.
 
     if used as changegroup hook, send one email for all changesets in
     changegroup. else send one email per changeset.'''
     n = notifier(ui, repo, hooktype)
     if not n.subs:
         ui.debug(_('notify: no subscribers to repo %s\n') % n.root)
         return
     if n.skipsource(source):
         ui.debug(_('notify: changes have source "%s" - skipping\n') %
                  source)
         return
     node = bin(node)
     ui.pushbuffer()
     if hooktype == 'changegroup':
         start = repo[node].rev()
         end = len(repo)
         count = end - start
         for rev in xrange(start, end):
             n.node(repo[rev].node())
         n.diff(node, repo.changelog.tip())
     else:
         count = 1
         n.node(node)
         n.diff(node, node)
     data = ui.popbuffer()
     n.send(node, count, data)

hgext/rebase.py

@@ -1,401 +1,403
 # rebase.py - rebasing feature for mercurial
 #
 # Copyright 2008 Stefano Tortarolo <stefano.tortarolo at gmail dot com>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
-''' Rebasing feature
+'''move sets of revisions to a different ancestor
 
 This extension lets you rebase changesets in an existing Mercurial repository.
 
 For more information:
 http://www.selenic.com/mercurial/wiki/index.cgi/RebaseProject
 '''
 
 from mercurial import util, repair, merge, cmdutil, dispatch, commands
 from mercurial.commands import templateopts
 from mercurial.node import nullrev
 from mercurial.i18n import _
 import os, errno
 
 def rebase(ui, repo, **opts):
     """move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of history
     onto another. This can be useful for linearizing local changes relative to
     a master development tree.
 
     If a rebase is interrupted to manually resolve a merge, it can be continued
     with --continue or aborted with --abort.
     """
     originalwd = target = source = None
     external = nullrev
     state = skipped = {}
 
     lock = wlock = None
     try:
         lock = repo.lock()
         wlock = repo.wlock()
 
         # Validate input and define rebasing points
         destf = opts.get('dest', None)
         srcf = opts.get('source', None)
         basef = opts.get('base', None)
         contf = opts.get('continue')
         abortf = opts.get('abort')
         collapsef = opts.get('collapse', False)
         if contf or abortf:
             if contf and abortf:
                 raise dispatch.ParseError('rebase',
                                     _('cannot use both abort and continue'))
             if collapsef:
                 raise dispatch.ParseError('rebase',
                         _('cannot use collapse with continue or abort'))
 
             if (srcf or basef or destf):
                 raise dispatch.ParseError('rebase',
                     _('abort and continue do not allow specifying revisions'))
 
             originalwd, target, state, collapsef, external = restorestatus(repo)
             if abortf:
                 abort(repo, originalwd, target, state)
                 return
         else:
             if srcf and basef:
                 raise dispatch.ParseError('rebase', _('cannot specify both a '
                                                         'revision and a base'))
             cmdutil.bail_if_changed(repo)
             result = buildstate(repo, destf, srcf, basef, collapsef)
             if result:
                 originalwd, target, state, external = result
             else: # Empty state built, nothing to rebase
                 repo.ui.status(_('nothing to rebase\n'))
                 return
 
         # Rebase
         targetancestors = list(repo.changelog.ancestors(target))
         targetancestors.append(target)
 
         for rev in util.sort(state):
             if state[rev] == -1:
                 storestatus(repo, originalwd, target, state, collapsef,
                                                                 external)
                 rebasenode(repo, rev, target, state, skipped, targetancestors,
                                                                 collapsef)
         ui.note(_('rebase merging completed\n'))
 
         if collapsef:
             p1, p2 = defineparents(repo, min(state), target,
                                                         state, targetancestors)
             concludenode(repo, rev, p1, external, state, collapsef,
                                                 last=True, skipped=skipped)
 
         if 'qtip' in repo.tags():
             updatemq(repo, state, skipped, **opts)
 
         if not opts.get('keep'):
             # Remove no more useful revisions
             if (util.set(repo.changelog.descendants(min(state)))
                                                     - util.set(state.keys())):
                 ui.warn(_("warning: new changesets detected on source branch, "
                                                         "not stripping\n"))
             else:
                 repair.strip(repo.ui, repo, repo[min(state)].node(), "strip")
 
         clearstatus(repo)
         ui.status(_("rebase completed\n"))
+        if os.path.exists(repo.sjoin('undo')):
+            util.unlink(repo.sjoin('undo'))
         if skipped:
             ui.note(_("%d revisions have been skipped\n") % len(skipped))
     finally:
         del lock, wlock
 
 def concludenode(repo, rev, p1, p2, state, collapse, last=False, skipped={}):
     """Skip commit if collapsing has been required and rev is not the last
     revision, commit otherwise
     """
     repo.dirstate.setparents(repo[p1].node(), repo[p2].node())
 
     if collapse and not last:
         return None
 
     # Commit, record the old nodeid
     m, a, r = repo.status()[:3]
     newrev = nullrev
     try:
         if last:
             commitmsg = 'Collapsed revision'
             for rebased in state:
                 if rebased not in skipped:
                     commitmsg += '\n* %s' % repo[rebased].description()
             commitmsg = repo.ui.edit(commitmsg, repo.ui.username())
         else:
             commitmsg = repo[rev].description()
         # Commit might fail if unresolved files exist
         newrev = repo.commit(m+a+r,
                             text=commitmsg,
                             user=repo[rev].user(),
                             date=repo[rev].date(),
                             extra={'rebase_source': repo[rev].hex()})
         return newrev
     except util.Abort:
         # Invalidate the previous setparents
         repo.dirstate.invalidate()
         raise
 
 def rebasenode(repo, rev, target, state, skipped, targetancestors, collapse):
     'Rebase a single revision'
     repo.ui.debug(_("rebasing %d:%s\n") % (rev, repo[rev].node()))
 
     p1, p2 = defineparents(repo, rev, target, state, targetancestors)
 
     # Merge phase
     if len(repo.parents()) != 2:
         # Update to target and merge it with local
         merge.update(repo, p1, False, True, False)
         repo.dirstate.write()
         stats = merge.update(repo, rev, True, False, False)
 
         if stats[3] > 0:
             raise util.Abort(_('fix unresolved conflicts with hg resolve then '
                                                 'run hg rebase --continue'))
     else: # we have an interrupted rebase
         repo.ui.debug(_('resuming interrupted rebase\n'))
 
 
     newrev = concludenode(repo, rev, p1, p2, state, collapse)
 
     # Update the state
     if newrev is not None:
         state[rev] = repo[newrev].rev()
     else:
         if not collapse:
             repo.ui.note(_('no changes, revision %d skipped\n') % rev)
             repo.ui.debug(_('next revision set to %s\n') % p1)
             skipped[rev] = True
         state[rev] = p1
 
 def defineparents(repo, rev, target, state, targetancestors):
     'Return the new parent relationship of the revision that will be rebased'
     parents = repo[rev].parents()
     p1 = p2 = nullrev
 
     P1n = parents[0].rev()
     if P1n in targetancestors:
         p1 = target
     elif P1n in state:
         p1 = state[P1n]
     else: # P1n external
         p1 = target
         p2 = P1n
 
     if len(parents) == 2 and parents[1].rev() not in targetancestors:
         P2n = parents[1].rev()
         # interesting second parent
         if P2n in state:
             if p1 == target: # P1n in targetancestors or external
                 p1 = state[P2n]
             else:
                 p2 = state[P2n]
         else: # P2n external
             if p2 != nullrev: # P1n external too => rev is a merged revision
                 raise util.Abort(_('cannot use revision %d as base, result '
                         'would have 3 parents') % rev)
             p2 = P2n
     return p1, p2
 
 def updatemq(repo, state, skipped, **opts):
     'Update rebased mq patches - finalize and then import them'
     mqrebase = {}
     for p in repo.mq.applied:
         if repo[p.rev].rev() in state:
             repo.ui.debug(_('revision %d is an mq patch (%s), finalize it.\n') %
                                         (repo[p.rev].rev(), p.name))
             mqrebase[repo[p.rev].rev()] = p.name
 
     if mqrebase:
         repo.mq.finish(repo, mqrebase.keys())
 
         # We must start import from the newest revision
         mq = mqrebase.keys()
         mq.sort()
         mq.reverse()
         for rev in mq:
             if rev not in skipped:
                 repo.ui.debug(_('import mq patch %d (%s)\n')
                               % (state[rev], mqrebase[rev]))
                 repo.mq.qimport(repo, (), patchname=mqrebase[rev],
                             git=opts.get('git', False),rev=[str(state[rev])])
         repo.mq.save_dirty()
 
 def storestatus(repo, originalwd, target, state, collapse, external):
     'Store the current status to allow recovery'
     f = repo.opener("rebasestate", "w")
     f.write(repo[originalwd].hex() + '\n')
     f.write(repo[target].hex() + '\n')
     f.write(repo[external].hex() + '\n')
     f.write('%d\n' % int(collapse))
     for d, v in state.items():
         oldrev = repo[d].hex()
         newrev = repo[v].hex()
         f.write("%s:%s\n" % (oldrev, newrev))
     f.close()
     repo.ui.debug(_('rebase status stored\n'))
 
 def clearstatus(repo):
     'Remove the status files'
     if os.path.exists(repo.join("rebasestate")):
         util.unlink(repo.join("rebasestate"))
 
 def restorestatus(repo):
     'Restore a previously stored status'
     try:
         target = None
         collapse = False
         external = nullrev
         state = {}
         f = repo.opener("rebasestate")
         for i, l in enumerate(f.read().splitlines()):
             if i == 0:
                 originalwd = repo[l].rev()
             elif i == 1:
                 target = repo[l].rev()
             elif i == 2:
                 external = repo[l].rev()
             elif i == 3:
                 collapse = bool(int(l))
             else:
                 oldrev, newrev = l.split(':')
                 state[repo[oldrev].rev()] = repo[newrev].rev()
         repo.ui.debug(_('rebase status resumed\n'))
         return originalwd, target, state, collapse, external
     except IOError, err:
         if err.errno != errno.ENOENT:
             raise
         raise util.Abort(_('no rebase in progress'))
 
 def abort(repo, originalwd, target, state):
     'Restore the repository to its original state'
     if util.set(repo.changelog.descendants(target)) - util.set(state.values()):
         repo.ui.warn(_("warning: new changesets detected on target branch, "
                                                     "not stripping\n"))
     else:
         # Strip from the first rebased revision
         merge.update(repo, repo[originalwd].rev(), False, True, False)
         rebased = filter(lambda x: x > -1, state.values())
         if rebased:
             strippoint = min(rebased)
             repair.strip(repo.ui, repo, repo[strippoint].node(), "strip")
         clearstatus(repo)
         repo.ui.status(_('rebase aborted\n'))
 
 def buildstate(repo, dest, src, base, collapse):
     'Define which revisions are going to be rebased and where'
     state = {}
     targetancestors = util.set()
 
     if not dest:
          # Destination defaults to the latest revision in the current branch
         branch = repo[None].branch()
         dest = repo[branch].rev()
     else:
         if 'qtip' in repo.tags() and (repo[dest].hex() in
                                 [s.rev for s in repo.mq.applied]):
             raise util.Abort(_('cannot rebase onto an applied mq patch'))
         dest = repo[dest].rev()
 
     if src:
         commonbase = repo[src].ancestor(repo[dest])
         if commonbase == repo[src]:
             raise util.Abort(_('cannot rebase an ancestor'))
         if commonbase == repo[dest]:
             raise util.Abort(_('cannot rebase a descendant'))
         source = repo[src].rev()
     else:
         if base:
             cwd = repo[base].rev()
         else:
             cwd = repo['.'].rev()
 
         if cwd == dest:
             repo.ui.debug(_('already working on current\n'))
             return None
 
         targetancestors = util.set(repo.changelog.ancestors(dest))
         if cwd in targetancestors:
             repo.ui.debug(_('already working on the current branch\n'))
             return None
 
         cwdancestors = util.set(repo.changelog.ancestors(cwd))
         cwdancestors.add(cwd)
         rebasingbranch = cwdancestors - targetancestors
         source = min(rebasingbranch)
 
     repo.ui.debug(_('rebase onto %d starting from %d\n') % (dest, source))
     state = dict.fromkeys(repo.changelog.descendants(source), nullrev)
     external = nullrev
     if collapse:
         if not targetancestors:
             targetancestors = util.set(repo.changelog.ancestors(dest))
         for rev in state:
             # Check externals and fail if there are more than one
             for p in repo[rev].parents():
                 if (p.rev() not in state and p.rev() != source
                             and p.rev() not in targetancestors):
                     if external != nullrev:
                         raise util.Abort(_('unable to collapse, there is more '
                                 'than one external parent'))
                     external = p.rev()
 
     state[source] = nullrev
     return repo['.'].rev(), repo[dest].rev(), state, external
 
 def pulldelegate(pullfunction, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'
     if opts.get('rebase'):
         if opts.get('update'):
             raise util.Abort(_('--update and --rebase are not compatible'))
 
         cmdutil.bail_if_changed(repo)
         revsprepull = len(repo)
         pullfunction(repo.ui, repo, *args, **opts)
         revspostpull = len(repo)
         if revspostpull > revsprepull:
             rebase(repo.ui, repo, **opts)
     else:
         pullfunction(repo.ui, repo, *args, **opts)
 
 def uisetup(ui):
     'Replace pull with a decorator to provide --rebase option'
     # cribbed from color.py
     aliases, entry = cmdutil.findcmd(ui, 'pull', commands.table)
     for candidatekey, candidateentry in commands.table.iteritems():
         if candidateentry is entry:
             cmdkey, cmdentry = candidatekey, entry
             break
 
     decorator = lambda ui, repo, *args, **opts: \
                     pulldelegate(cmdentry[0], repo, *args, **opts)
     # make sure 'hg help cmd' still works
     decorator.__doc__ = cmdentry[0].__doc__
     decoratorentry = (decorator,) + cmdentry[1:]
     rebaseopt = ('', 'rebase', None,
                             _("rebase working directory to branch head"))
     decoratorentry[1].append(rebaseopt)
     commands.table[cmdkey] = decoratorentry
 
 cmdtable = {
 "rebase":
         (rebase,
         [
         ('', 'keep', False, _('keep original revisions')),
         ('s', 'source', '', _('rebase from a given revision')),
         ('b', 'base', '', _('rebase from the base of a given revision')),
         ('d', 'dest', '', _('rebase onto a given revision')),
         ('', 'collapse', False, _('collapse the rebased revisions')),
         ('c', 'continue', False, _('continue an interrupted rebase')),
         ('a', 'abort', False, _('abort an interrupted rebase')),] +
          templateopts,
         _('hg rebase [-s rev | -b rev] [-d rev] [--collapse] | [-c] | [-a] | '
                                                                 '[--keep]')),
 }

mercurial/commands.py

@@ -1,3327 +1,3342
 # commands.py - command processing for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import hex, nullid, nullrev, short
 from repo import RepoError, NoCapability
 from i18n import _, gettext
 import os, re, sys, urllib
 import hg, util, revlog, bundlerepo, extensions, copies
 import difflib, patch, time, help, mdiff, tempfile
 import version, socket
 import archival, changegroup, cmdutil, hgweb.server, sshserver, hbisect
 import merge as merge_
 
 # Commands start here, listed alphabetically
 
 def add(ui, repo, *pats, **opts):
     """add the specified files on the next commit
 
     Schedule files to be version controlled and added to the repository.
 
     The files will be added to the repository at the next commit. To
     undo an add before that, see hg revert.
 
     If no names are given, add all files in the repository.
     """
 
     rejected = None
     exacts = {}
     names = []
     m = cmdutil.match(repo, pats, opts)
     m.bad = lambda x,y: True
     for abs in repo.walk(m):
         if m.exact(abs):
             if ui.verbose:
                 ui.status(_('adding %s\n') % m.rel(abs))
             names.append(abs)
             exacts[abs] = 1
         elif abs not in repo.dirstate:
             ui.status(_('adding %s\n') % m.rel(abs))
             names.append(abs)
     if not opts.get('dry_run'):
         rejected = repo.add(names)
         rejected = [p for p in rejected if p in exacts]
     return rejected and 1 or 0
 
 def addremove(ui, repo, *pats, **opts):
     """add all new files, delete all missing files
 
     Add all new files and remove all missing files from the repository.
 
     New files are ignored if they match any of the patterns in .hgignore. As
     with add, these changes take effect at the next commit.
 
     Use the -s option to detect renamed files. With a parameter > 0,
     this compares every removed file with every added file and records
     those similar enough as renames. This option takes a percentage
     between 0 (disabled) and 100 (files must be identical) as its
     parameter. Detecting renamed files this way can be expensive.
     """
     try:
         sim = float(opts.get('similarity') or 0)
     except ValueError:
         raise util.Abort(_('similarity must be a number'))
     if sim < 0 or sim > 100:
         raise util.Abort(_('similarity must be between 0 and 100'))
     return cmdutil.addremove(repo, pats, opts, similarity=sim/100.)
 
 def annotate(ui, repo, *pats, **opts):
     """show changeset information per file line
 
     List changes in files, showing the revision id responsible for each line
 
     This command is useful to discover who did a change or when a change took
     place.
 
     Without the -a option, annotate will avoid processing files it
     detects as binary. With -a, annotate will generate an annotation
     anyway, probably with undesirable results.
     """
     datefunc = ui.quiet and util.shortdate or util.datestr
     getdate = util.cachefunc(lambda x: datefunc(x[0].date()))
 
     if not pats:
         raise util.Abort(_('at least one file name or pattern required'))
 
     opmap = [('user', lambda x: ui.shortuser(x[0].user())),
              ('number', lambda x: str(x[0].rev())),
              ('changeset', lambda x: short(x[0].node())),
              ('date', getdate),
              ('follow', lambda x: x[0].path()),
             ]
 
-    if (not opts['user'] and not opts['changeset'] and not opts['date']
-        and not opts['follow']):
+    if (not opts.get('user') and not opts.get('changeset') and not opts.get('date')
+        and not opts.get('follow')):
         opts['number'] = 1
 
     linenumber = opts.get('line_number') is not None
-    if (linenumber and (not opts['changeset']) and (not opts['number'])):
+    if (linenumber and (not opts.get('changeset')) and (not opts.get('number'))):
         raise util.Abort(_('at least one of -n/-c is required for -l'))
 
     funcmap = [func for op, func in opmap if opts.get(op)]
     if linenumber:
         lastfunc = funcmap[-1]
         funcmap[-1] = lambda x: "%s:%s" % (lastfunc(x), x[1])
 
-    ctx = repo[opts['rev']]
+    ctx = repo[opts.get('rev')]
 
     m = cmdutil.match(repo, pats, opts)
     for abs in ctx.walk(m):
         fctx = ctx[abs]
-        if not opts['text'] and util.binary(fctx.data()):
+        if not opts.get('text') and util.binary(fctx.data()):
             ui.write(_("%s: binary file\n") % ((pats and m.rel(abs)) or abs))
             continue
 
         lines = fctx.annotate(follow=opts.get('follow'),
                               linenumber=linenumber)
         pieces = []
 
         for f in funcmap:
             l = [f(n) for n, dummy in lines]
             if l:
                 ml = max(map(len, l))
                 pieces.append(["%*s" % (ml, x) for x in l])
 
         if pieces:
             for p, l in zip(zip(*pieces), lines):
                 ui.write("%s: %s" % (" ".join(p), l[1]))
 
 def archive(ui, repo, dest, **opts):
     '''create unversioned archive of a repository revision
 
     By default, the revision used is the parent of the working
     directory; use "-r" to specify a different revision.
 
     To specify the type of archive to create, use "-t". Valid
     types are:
 
     "files" (default): a directory full of files
     "tar": tar archive, uncompressed
     "tbz2": tar archive, compressed using bzip2
     "tgz": tar archive, compressed using gzip
     "uzip": zip archive, uncompressed
     "zip": zip archive, compressed using deflate
 
     The exact name of the destination archive or directory is given
     using a format string; see "hg help export" for details.
 
     Each member added to an archive file has a directory prefix
     prepended. Use "-p" to specify a format string for the prefix.
     The default is the basename of the archive, with suffixes removed.
     '''
 
-    ctx = repo[opts['rev']]
+    ctx = repo[opts.get('rev')]
     if not ctx:
         raise util.Abort(_('repository has no revisions'))
     node = ctx.node()
     dest = cmdutil.make_filename(repo, dest, node)
     if os.path.realpath(dest) == repo.root:
         raise util.Abort(_('repository root cannot be destination'))
     matchfn = cmdutil.match(repo, [], opts)
     kind = opts.get('type') or 'files'
-    prefix = opts['prefix']
+    prefix = opts.get('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'],
+    archival.archive(repo, dest, node, kind, not opts.get('no_decode'),
                      matchfn, prefix)
 
 def backout(ui, repo, node=None, rev=None, **opts):
     '''reverse effect of earlier changeset
 
     Commit the backed out changes as a new changeset. The new
     changeset is a child of the backed out changeset.
 
     If you back out a changeset other than the tip, a new head is
     created. This head will be the new tip and you should merge this
     backout changeset with another head (current one by default).
 
     The --merge option remembers the parent of the working directory
     before starting the backout, then merges the new head with that
     changeset afterwards. This saves you from doing the merge by
     hand. The result of this merge is not committed, as for a normal
     merge.
 
     See \'hg help dates\' for a list of formats valid for -d/--date.
     '''
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if not rev:
         raise util.Abort(_("please specify a revision to backout"))
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     cmdutil.bail_if_changed(repo)
     node = repo.lookup(rev)
 
     op1, op2 = repo.dirstate.parents()
     a = repo.changelog.ancestor(op1, node)
     if a != node:
         raise util.Abort(_('cannot back out change on a different branch'))
 
     p1, p2 = repo.changelog.parents(node)
     if p1 == nullid:
         raise util.Abort(_('cannot back out a change with no parents'))
     if p2 != nullid:
-        if not opts['parent']:
+        if not opts.get('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']:
+        if opts.get('parent'):
             raise util.Abort(_('cannot use --parent on non-merge changeset'))
         parent = p1
 
     # the backout should appear on the same branch
     branch = repo.dirstate.branch()
     hg.clean(repo, node, show_stats=False)
     repo.dirstate.setbranch(branch)
     revert_opts = opts.copy()
     revert_opts['date'] = None
     revert_opts['all'] = True
     revert_opts['rev'] = hex(parent)
     revert_opts['no_backup'] = None
     revert(ui, repo, **revert_opts)
     commit_opts = opts.copy()
     commit_opts['addremove'] = False
     if not commit_opts['message'] and not commit_opts['logfile']:
         commit_opts['message'] = _("Backed out changeset %s") % (short(node))
         commit_opts['force_editor'] = True
     commit(ui, repo, **commit_opts)
     def nice(node):
         return '%d:%s' % (repo.changelog.rev(node), short(node))
     ui.status(_('changeset %s backs out changeset %s\n') %
               (nice(repo.changelog.tip()), nice(node)))
     if op1 != node:
         hg.clean(repo, op1, show_stats=False)
-        if opts['merge']:
+        if opts.get('merge'):
             ui.status(_('merging with changeset %s\n') % nice(repo.changelog.tip()))
             hg.merge(repo, hex(repo.changelog.tip()))
         else:
             ui.status(_('the backout changeset is a new head - '
                         'do not forget to merge\n'))
             ui.status(_('(use "backout --merge" '
                         'if you want to auto-merge)\n'))
 
 def bisect(ui, repo, rev=None, extra=None,
                reset=None, good=None, bad=None, skip=None, noupdate=None):
     """subdivision search of changesets
 
     This command helps to find changesets which introduce problems.
     To use, mark the earliest changeset you know exhibits the problem
     as bad, then mark the latest changeset which is free from the
     problem as good. Bisect will update your working directory to a
     revision for testing (unless the --noupdate option is specified).
     Once you have performed tests, mark the working directory as bad
     or good and bisect will either update to another candidate changeset
     or announce that it has found the bad revision.
 
     As a shortcut, you can also use the revision argument to mark a
     revision as good or bad without checking it out first.
     """
     # backward compatibility
     if rev in "good bad reset init".split():
         ui.warn(_("(use of 'hg bisect <cmd>' is deprecated)\n"))
         cmd, rev, extra = rev, extra, None
         if cmd == "good":
             good = True
         elif cmd == "bad":
             bad = True
         else:
             reset = True
     elif extra or good + bad + skip + reset > 1:
         raise util.Abort(_('incompatible arguments'))
 
     if reset:
         p = repo.join("bisect.state")
         if os.path.exists(p):
             os.unlink(p)
         return
 
     # load state
     state = {'good': [], 'bad': [], 'skip': []}
     if os.path.exists(repo.join("bisect.state")):
         for l in repo.opener("bisect.state"):
             kind, node = l[:-1].split()
             node = repo.lookup(node)
             if kind not in state:
                 raise util.Abort(_("unknown bisect kind %s") % kind)
             state[kind].append(node)
 
     # update state
     node = repo.lookup(rev or '.')
     if good:
         state['good'].append(node)
     elif bad:
         state['bad'].append(node)
     elif skip:
         state['skip'].append(node)
 
     # save state
     f = repo.opener("bisect.state", "w", atomictemp=True)
     wlock = repo.wlock()
     try:
         for kind in state:
             for node in state[kind]:
                 f.write("%s %s\n" % (kind, hex(node)))
         f.rename()
     finally:
         del wlock
 
     if not state['good'] or not state['bad']:
         if (good or bad or skip or reset):
             return
         if not state['good']:
             raise util.Abort(_('cannot bisect (no known good revisions)'))
         else:
             raise util.Abort(_('cannot bisect (no known bad revisions)'))
 
     # actually bisect
     nodes, changesets, good = hbisect.bisect(repo.changelog, state)
     if changesets == 0:
         displayer = cmdutil.show_changeset(ui, repo, {})
         transition = (good and "good" or "bad")
         if len(nodes) == 1:
             # narrowed it down to a single revision
             ui.write(_("The first %s revision is:\n") % transition)
             displayer.show(changenode=nodes[0])
         else:
             # multiple possible revisions
             ui.write(_("Due to skipped revisions, the first "
                        "%s revision could be any of:\n") % transition)
             for n in nodes:
                 displayer.show(changenode=n)
     else:
         assert len(nodes) == 1 # only a single node can be tested next
         node = nodes[0]
         # compute the approximate number of remaining tests
         tests, size = 0, 2
         while size <= changesets:
             tests, size = tests + 1, size * 2
         rev = repo.changelog.rev(node)
         ui.write(_("Testing changeset %s:%s "
                    "(%s changesets remaining, ~%s tests)\n")
                  % (rev, short(node), changesets, tests))
         if not noupdate:
             cmdutil.bail_if_changed(repo)
             return hg.clean(repo, node)
 
 def branch(ui, repo, label=None, **opts):
     """set or show the current branch name
 
     With no argument, show the current branch name. With one argument,
     set the working directory branch name (the branch does not exist in
     the repository until the next commit).
 
     Unless --force is specified, branch will not let you set a
     branch name that shadows an existing branch.
 
     Use --clean to reset the working directory branch to that of the
     parent of the working directory, negating a previous branch change.
 
     Use the command 'hg update' to switch to an existing branch.
     """
 
     if opts.get('clean'):
         label = repo[None].parents()[0].branch()
         repo.dirstate.setbranch(label)
         ui.status(_('reset working directory to branch %s\n') % label)
     elif label:
         if not opts.get('force') and label in repo.branchtags():
             if label not in [p.branch() for p in repo.parents()]:
                 raise util.Abort(_('a branch of the same name already exists'
                                    ' (use --force to override)'))
         repo.dirstate.setbranch(util.fromlocal(label))
         ui.status(_('marked working directory as branch %s\n') % label)
     else:
         ui.write("%s\n" % util.tolocal(repo.dirstate.branch()))
 
 def branches(ui, repo, active=False):
     """list repository named branches
 
     List the repository's named branches, indicating which ones are
     inactive. If active is specified, only show active branches.
 
     A branch is considered active if it contains repository heads.
 
     Use the command 'hg update' to switch to an existing branch.
     """
     hexfunc = ui.debugflag and hex or short
     activebranches = [util.tolocal(repo[n].branch())
                             for n in repo.heads()]
     branches = util.sort([(tag in activebranches, repo.changelog.rev(node), tag)
                           for tag, node in repo.branchtags().items()])
     branches.reverse()
 
     for isactive, node, tag in branches:
         if (not active) or isactive:
             if ui.quiet:
                 ui.write("%s\n" % tag)
             else:
                 rev = str(node).rjust(31 - util.locallen(tag))
                 isinactive = ((not isactive) and " (inactive)") or ''
                 data = tag, rev, hexfunc(repo.lookup(node)), isinactive
                 ui.write("%s %s:%s%s\n" % data)
 
 def bundle(ui, repo, fname, dest=None, **opts):
     """create a changegroup file
 
     Generate a compressed changegroup file collecting changesets not
     found in the other repository.
 
     If no destination repository is specified the destination is
     assumed to have all the nodes specified by one or more --base
     parameters. To create a bundle containing all changesets, use
     --all (or --base null). To change the compression method applied,
     use the -t option (by default, bundles are compressed using bz2).
 
     The bundle file can then be transferred using conventional means and
     applied to another repository with the unbundle or pull command.
     This is useful when direct push and pull are not available or when
     exporting an entire repository is undesirable.
 
     Applying bundles preserves all changeset contents including
     permissions, copy/rename information, and revision history.
     """
     revs = opts.get('rev') or None
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     if opts.get('all'):
         base = ['null']
     else:
         base = opts.get('base')
     if base:
         if dest:
             raise util.Abort(_("--base is incompatible with specifiying "
                                "a destination"))
         base = [repo.lookup(rev) for rev in base]
         # create the right base
         # XXX: nodesbetween / changegroup* should be "fixed" instead
         o = []
         has = {nullid: None}
         for n in base:
             has.update(repo.changelog.reachable(n))
         if revs:
             visit = list(revs)
         else:
             visit = repo.changelog.heads()
         seen = {}
         while visit:
             n = visit.pop(0)
             parents = [p for p in repo.changelog.parents(n) if p not in has]
             if len(parents) == 0:
                 o.insert(0, n)
             else:
                 for p in parents:
                     if p not in seen:
                         seen[p] = 1
                         visit.append(p)
     else:
         cmdutil.setremoteconfig(ui, opts)
         dest, revs, checkout = hg.parseurl(
             ui.expandpath(dest or 'default-push', dest or 'default'), revs)
         other = hg.repository(ui, dest)
-        o = repo.findoutgoing(other, force=opts['force'])
+        o = repo.findoutgoing(other, force=opts.get('force'))
 
     if revs:
         cg = repo.changegroupsubset(o, revs, 'bundle')
     else:
         cg = repo.changegroup(o, 'bundle')
 
     bundletype = opts.get('type', 'bzip2').lower()
     btypes = {'none': 'HG10UN', 'bzip2': 'HG10BZ', 'gzip': 'HG10GZ'}
     bundletype = btypes.get(bundletype)
     if bundletype not in changegroup.bundletypes:
         raise util.Abort(_('unknown bundle type specified with --type'))
 
     changegroup.writebundle(cg, fname, bundletype)
 
 def cat(ui, repo, file1, *pats, **opts):
     """output the current or given revision of files
 
     Print the specified files as they were at the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules are the same as
     for the export command, with the following additions:
 
     %s   basename of file being printed
     %d   dirname of file being printed, or '.' if in repo root
     %p   root-relative path name of file being printed
     """
-    ctx = repo[opts['rev']]
+    ctx = repo[opts.get('rev')]
     err = 1
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in ctx.walk(m):
-        fp = cmdutil.make_file(repo, opts['output'], ctx.node(), pathname=abs)
+        fp = cmdutil.make_file(repo, opts.get('output'), ctx.node(), pathname=abs)
         data = ctx[abs].data()
         if opts.get('decode'):
             data = repo.wwritedata(abs, data)
         fp.write(data)
         err = 0
     return err
 
 def clone(ui, source, dest=None, **opts):
     """make a copy of an existing repository
 
     Create a copy of an existing repository in a new directory.
 
     If no destination directory name is specified, it defaults to the
     basename of the source.
 
     The location of the source is added to the new repository's
     .hg/hgrc file, as the default to be used for future pulls.
 
     For efficiency, hardlinks are used for cloning whenever the source
     and destination are on the same filesystem (note this applies only
     to the repository data, not to the checked out files). Some
     filesystems, such as AFS, implement hardlinking incorrectly, but
     do not report errors. In these cases, use the --pull option to
     avoid hardlinking.
 
     In some cases, you can clone repositories and checked out files
     using full hardlinks with
 
       $ cp -al REPO REPOCLONE
 
     This is the fastest way to clone, but it is not always safe.  The
     operation is not atomic (making sure REPO is not modified during
     the operation is up to you) and you have to make sure your editor
     breaks hardlinks (Emacs and most Linux Kernel tools do so).  Also,
     this is not compatible with certain extensions that place their
     metadata under the .hg directory, such as mq.
 
     If you use the -r option to clone up to a specific revision, no
     subsequent revisions will be present in the cloned repository.
     This option implies --pull, even on local repositories.
 
     If the -U option is used, the new clone will contain only a repository
     (.hg) and no working copy (the working copy parent is the null revision).
 
     See pull for valid source format details.
 
     It is possible to specify an ssh:// URL as the destination, but no
     .hg/hgrc and working directory will be created on the remote side.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.clone(ui, source, dest,
-             pull=opts['pull'],
-             stream=opts['uncompressed'],
-             rev=opts['rev'],
-             update=not opts['noupdate'])
+             pull=opts.get('pull'),
+             stream=opts.get('uncompressed'),
+             rev=opts.get('rev'),
+             update=not opts.get('noupdate'))
 
 def commit(ui, repo, *pats, **opts):
     """commit the specified files or all outstanding changes
 
     Commit changes to the given files into the repository.
 
     If a list of files is omitted, all changes reported by "hg status"
     will be committed.
 
     If you are committing the result of a merge, do not provide any
     file names or -I/-X filters.
 
     If no commit message is specified, the configured editor is started to
     enter a message.
 
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
     def commitfunc(ui, repo, message, match, opts):
-        return repo.commit(match.files(), message, opts['user'], opts['date'],
+        return repo.commit(match.files(), message, opts.get('user'), opts.get('date'),
                            match, force_editor=opts.get('force_editor'))
 
     node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
     if not node:
         return
     cl = repo.changelog
     rev = cl.rev(node)
     parents = cl.parentrevs(rev)
     if rev - 1 in parents:
         # one of the parents was the old tip
         pass
     elif (parents == (nullrev, nullrev) or
           len(cl.heads(cl.node(parents[0]))) > 1 and
           (parents[1] == nullrev or len(cl.heads(cl.node(parents[1]))) > 1)):
         ui.status(_('created new head\n'))
 
     if ui.debugflag:
         ui.write(_('committed changeset %d:%s\n') % (rev,hex(node)))
     elif ui.verbose:
         ui.write(_('committed changeset %d:%s\n') % (rev,short(node)))
 
 def copy(ui, repo, *pats, **opts):
     """mark files as copied for the next commit
 
     Mark dest as having copies of source files. If dest is a
     directory, copies are put in that directory. If dest is a file,
     there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory. If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a copy
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts)
     finally:
         del wlock
 
 def debugancestor(ui, repo, *args):
     """find the ancestor revision of two revisions in a given index"""
     if len(args) == 3:
         index, rev1, rev2 = args
         r = revlog.revlog(util.opener(os.getcwd(), audit=False), index)
         lookup = r.lookup
     elif len(args) == 2:
         if not repo:
             raise util.Abort(_("There is no Mercurial repository here "
                                "(.hg not found)"))
         rev1, rev2 = args
         r = repo.changelog
         lookup = repo.lookup
     else:
         raise util.Abort(_('either two or three arguments required'))
     a = r.ancestor(lookup(rev1), lookup(rev2))
     ui.write("%d:%s\n" % (r.rev(a), hex(a)))
 
 def debugcomplete(ui, cmd='', **opts):
     """returns the completion list associated with the given command"""
 
-    if opts['options']:
+    if opts.get('options'):
         options = []
         otables = [globalopts]
         if cmd:
             aliases, entry = cmdutil.findcmd(ui, cmd, table)
             otables.append(entry[1])
         for t in otables:
             for o in t:
                 if o[0]:
                     options.append('-%s' % o[0])
                 options.append('--%s' % o[1])
         ui.write("%s\n" % "\n".join(options))
         return
 
     ui.write("%s\n" % "\n".join(util.sort(cmdutil.findpossible(ui, cmd, table))))
 
 def debugfsinfo(ui, path = "."):
     file('.debugfsinfo', 'w').write('')
     ui.write('exec: %s\n' % (util.checkexec(path) and 'yes' or 'no'))
     ui.write('symlink: %s\n' % (util.checklink(path) and 'yes' or 'no'))
     ui.write('case-sensitive: %s\n' % (util.checkcase('.debugfsinfo')
                                 and 'yes' or 'no'))
     os.unlink('.debugfsinfo')
 
 def debugrebuildstate(ui, repo, rev="tip"):
     """rebuild the dirstate as it would look like for the given revision"""
     ctx = repo[rev]
     wlock = repo.wlock()
     try:
         repo.dirstate.rebuild(ctx.node(), ctx.manifest())
     finally:
         del wlock
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     m1 = repo[parent1].manifest()
     m2 = repo[parent2].manifest()
     errors = 0
     for f in repo.dirstate:
         state = repo.dirstate[f]
         if state in "nr" and f not in m1:
             ui.warn(_("%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in "a" and f in m1:
             ui.warn(_("%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in "m" and f not in m1 and f not in m2:
             ui.warn(_("%s in state %s, but not in either manifest\n") %
                     (f, state))
             errors += 1
     for f in m1:
         state = repo.dirstate[f]
         if state not in "nrm":
             ui.warn(_("%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         error = _(".hg/dirstate inconsistent with current parent's manifest")
         raise util.Abort(error)
 
 def showconfig(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
     With no args, print names and values of all config items.
 
     With one arg of the form section.name, print just the value of
     that config item.
 
     With multiple args, print names and values of all config items
     with matching section names."""
 
     untrusted = bool(opts.get('untrusted'))
     if values:
         if len([v for v in values if '.' in v]) > 1:
             raise util.Abort(_('only one config item permitted'))
     for section, name, value in ui.walkconfig(untrusted=untrusted):
         sectname = section + '.' + name
         if values:
             for v in values:
                 if v == section:
                     ui.write('%s=%s\n' % (sectname, value))
                 elif v == sectname:
                     ui.write(value, '\n')
         else:
             ui.write('%s=%s\n' % (sectname, value))
 
 def debugsetparents(ui, repo, rev1, rev2=None):
     """manually set the parents of the current working directory
 
     This is useful for writing repository conversion tools, but should
     be used with care.
     """
 
     if not rev2:
         rev2 = hex(nullid)
 
     wlock = repo.wlock()
     try:
         repo.dirstate.setparents(repo.lookup(rev1), repo.lookup(rev2))
     finally:
         del wlock
 
 def debugstate(ui, repo, nodates=None):
     """show the contents of the current dirstate"""
     timestr = ""
     showdate = not nodates
     for file_, ent in util.sort(repo.dirstate._map.items()):
         if showdate:
             if ent[3] == -1:
                 # Pad or slice to locale representation
                 locale_len = len(time.strftime("%Y-%m-%d %H:%M:%S ", time.localtime(0)))
                 timestr = 'unset'
                 timestr = timestr[:locale_len] + ' '*(locale_len - len(timestr))
             else:
                 timestr = time.strftime("%Y-%m-%d %H:%M:%S ", time.localtime(ent[3]))
         if ent[1] & 020000:
             mode = 'lnk'
         else:
             mode = '%3o' % (ent[1] & 0777)
         ui.write("%c %s %10d %s%s\n" % (ent[0], mode, ent[2], timestr, file_))
     for f in repo.dirstate.copies():
         ui.write(_("copy: %s -> %s\n") % (repo.dirstate.copied(f), f))
 
 def debugdata(ui, file_, rev):
     """dump the contents of a data file revision"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_[:-2] + ".i")
     try:
         ui.write(r.revision(r.lookup(rev)))
     except KeyError:
         raise util.Abort(_('invalid revision identifier %s') % rev)
 
 def debugdate(ui, date, range=None, **opts):
     """parse and display a date"""
     if opts["extended"]:
         d = util.parsedate(date, util.extendeddateformats)
     else:
         d = util.parsedate(date)
     ui.write("internal: %s %s\n" % d)
     ui.write("standard: %s\n" % util.datestr(d))
     if range:
         m = util.matchdate(range)
         ui.write("match: %s\n" % m(d[0]))
 
 def debugindex(ui, file_):
     """dump the contents of an index file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("   rev    offset  length   base linkrev" +
              " nodeid       p1           p2\n")
     for i in r:
         node = r.node(i)
         try:
             pp = r.parents(node)
         except:
             pp = [nullid, nullid]
         ui.write("% 6d % 9d % 7d % 6d % 7d %s %s %s\n" % (
                 i, r.start(i), r.length(i), r.base(i), r.linkrev(node),
             short(node), short(pp[0]), short(pp[1])))
 
 def debugindexdot(ui, file_):
     """dump an index DAG as a .dot file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("digraph G {\n")
     for i in r:
         node = r.node(i)
         pp = r.parents(node)
         ui.write("\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write("}\n")
 
 def debuginstall(ui):
     '''test Mercurial installation'''
 
     def writetemp(contents):
         (fd, name) = tempfile.mkstemp(prefix="hg-debuginstall-")
         f = os.fdopen(fd, "wb")
         f.write(contents)
         f.close()
         return name
 
     problems = 0
 
     # encoding
     ui.status(_("Checking encoding (%s)...\n") % util._encoding)
     try:
         util.fromlocal("test")
     except util.Abort, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (check that your locale is properly set)\n"))
         problems += 1
 
     # compiled modules
     ui.status(_("Checking extensions...\n"))
     try:
         import bdiff, mpatch, base85
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" One or more extensions could not be found"))
         ui.write(_(" (check that you compiled the extensions)\n"))
         problems += 1
 
     # templates
     ui.status(_("Checking templates...\n"))
     try:
         import templater
         t = templater.templater(templater.templatepath("map-cmdline.default"))
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (templates seem to have been installed incorrectly)\n"))
         problems += 1
 
     # patch
     ui.status(_("Checking patch...\n"))
     patchproblems = 0
     a = "1\n2\n3\n4\n"
     b = "1\n2\n3\ninsert\n4\n"
     fa = writetemp(a)
     d = mdiff.unidiff(a, None, b, None, os.path.basename(fa),
         os.path.basename(fa))
     fd = writetemp(d)
 
     files = {}
     try:
         patch.patch(fd, ui, cwd=os.path.dirname(fa), files=files)
     except util.Abort, e:
         ui.write(_(" patch call failed:\n"))
         ui.write(" " + str(e) + "\n")
         patchproblems += 1
     else:
         if list(files) != [os.path.basename(fa)]:
             ui.write(_(" unexpected patch output!\n"))
             patchproblems += 1
         a = file(fa).read()
         if a != b:
             ui.write(_(" patch test failed!\n"))
             patchproblems += 1
 
     if patchproblems:
         if ui.config('ui', 'patch'):
             ui.write(_(" (Current patch tool may be incompatible with patch,"
                        " or misconfigured. Please check your .hgrc file)\n"))
         else:
             ui.write(_(" Internal patcher failure, please report this error"
                        " to http://www.selenic.com/mercurial/bts\n"))
     problems += patchproblems
 
     os.unlink(fa)
     os.unlink(fd)
 
     # editor
     ui.status(_("Checking commit editor...\n"))
     editor = ui.geteditor()
     cmdpath = util.find_exe(editor) or util.find_exe(editor.split()[0])
     if not cmdpath:
         if editor == 'vi':
             ui.write(_(" No commit editor set and can't find vi in PATH\n"))
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
         else:
             ui.write(_(" Can't find editor '%s' in PATH\n") % editor)
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
             problems += 1
 
     # check username
     ui.status(_("Checking username...\n"))
     user = os.environ.get("HGUSER")
     if user is None:
         user = ui.config("ui", "username")
     if user is None:
         user = os.environ.get("EMAIL")
     if not user:
         ui.warn(" ")
         ui.username()
         ui.write(_(" (specify a username in your .hgrc file)\n"))
 
     if not problems:
         ui.status(_("No problems detected\n"))
     else:
         ui.write(_("%s problems detected,"
                    " please check your install!\n") % problems)
 
     return problems
 
 def debugrename(ui, repo, file1, *pats, **opts):
     """dump rename information"""
 
     ctx = repo[opts.get('rev')]
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in ctx.walk(m):
         fctx = ctx[abs]
         o = fctx.filelog().renamed(fctx.filenode())
         rel = m.rel(abs)
         if o:
             ui.write(_("%s renamed from %s:%s\n") % (rel, o[0], hex(o[1])))
         else:
             ui.write(_("%s not renamed\n") % rel)
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     m = cmdutil.match(repo, pats, opts)
     items = list(repo.walk(m))
     if not items:
         return
     fmt = 'f  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for abs in items]),
         max([len(m.rel(abs)) for abs in items]))
     for abs in items:
         line = fmt % (abs, m.rel(abs), m.exact(abs) and 'exact' or '')
         ui.write("%s\n" % line.rstrip())
 
 def diff(ui, repo, *pats, **opts):
     """diff repository (or selected files)
 
     Show differences between revisions for the specified files.
 
     Differences between files are shown using the unified diff format.
 
     NOTE: diff may generate unexpected results for merges, as it will
     default to comparing against the working directory's first parent
     changeset if no revisions are specified.
 
     When two revision arguments are given, then changes are shown
     between those revisions. If only one revision is specified then
     that revision is compared to the working directory, and, when no
     revisions are specified, the working directory files are compared
     to its parent.
 
     Without the -a option, diff will avoid generating diffs of files
     it detects as binary. With -a, diff will generate a diff anyway,
     probably with undesirable results.
     """
-    node1, node2 = cmdutil.revpair(repo, opts['rev'])
+    node1, node2 = cmdutil.revpair(repo, opts.get('rev'))
 
     m = cmdutil.match(repo, pats, opts)
     patch.diff(repo, node1, node2, match=m, opts=patch.diffopts(ui, opts))
 
 def export(ui, repo, *changesets, **opts):
     """dump the header and diffs for one or more changesets
 
     Print the changeset header and diffs for one or more revisions.
 
     The information shown in the changeset header is: author,
     changeset hash, parent(s) and commit comment.
 
     NOTE: export may generate unexpected diff output for merge changesets,
     as it will compare the merge changeset against its first parent only.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules are as follows:
 
     %%   literal "%" character
     %H   changeset hash (40 bytes of hexadecimal)
     %N   number of patches being generated
     %R   changeset revision number
     %b   basename of the exporting repository
     %h   short-form changeset hash (12 bytes of hexadecimal)
     %n   zero-padded sequence number, starting at 1
     %r   zero-padded changeset revision number
 
     Without the -a option, export will avoid generating diffs of files
     it detects as binary. With -a, export will generate a diff anyway,
     probably with undesirable results.
 
     With the --switch-parent option, the diff will be against the second
     parent. It can be useful to review a merge.
     """
     if not changesets:
         raise util.Abort(_("export requires at least one changeset"))
     revs = cmdutil.revrange(repo, changesets)
     if len(revs) > 1:
         ui.note(_('exporting patches:\n'))
     else:
         ui.note(_('exporting patch:\n'))
-    patch.export(repo, revs, template=opts['output'],
-                 switch_parent=opts['switch_parent'],
+    patch.export(repo, revs, template=opts.get('output'),
+                 switch_parent=opts.get('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']:
+    if opts.get('ignore_case'):
         reflags |= re.I
     try:
         regexp = re.compile(pattern, reflags)
     except Exception, inst:
         ui.warn(_("grep: invalid match pattern: %s\n") % inst)
         return None
     sep, eol = ':', '\n'
-    if opts['print0']:
+    if opts.get('print0'):
         sep = eol = '\0'
 
     fcache = {}
     def getfile(fn):
         if fn not in fcache:
             fcache[fn] = repo.file(fn)
         return fcache[fn]
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while True:
             match = regexp.search(body, begin)
             if not match:
                 break
             mstart, mend = match.span()
             linenum += body.count('\n', begin, mstart) + 1
             lstart = body.rfind('\n', begin, mstart) + 1 or begin
             lend = body.find('\n', mend)
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
             begin = lend + 1
 
     class linestate(object):
         def __init__(self, line, linenum, colstart, colend):
             self.line = line
             self.linenum = linenum
             self.colstart = colstart
             self.colend = colend
 
         def __hash__(self):
             return hash((self.linenum, self.line))
 
         def __eq__(self, other):
             return self.line == other.line
 
     matches = {}
     copies = {}
     def grepbody(fn, rev, body):
         matches[rev].setdefault(fn, [])
         m = matches[rev][fn]
         for lnum, cstart, cend, line in matchlines(body):
             s = linestate(line, lnum, cstart, cend)
             m.append(s)
 
     def difflinestates(a, b):
         sm = difflib.SequenceMatcher(None, a, b)
         for tag, alo, ahi, blo, bhi in sm.get_opcodes():
             if tag == 'insert':
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
             elif tag == 'delete':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
             elif tag == 'replace':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
 
     prev = {}
     def display(fn, rev, states, prevstates):
         datefunc = ui.quiet and util.shortdate or util.datestr
         found = False
         filerevmatches = {}
         r = prev.get(fn, -1)
-        if opts['all']:
+        if opts.get('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']:
+            if opts.get('line_number'):
                 cols.append(str(l.linenum))
-            if opts['all']:
+            if opts.get('all'):
                 cols.append(change)
-            if opts['user']:
+            if opts.get('user'):
                 cols.append(ui.shortuser(get(r)[1]))
             if opts.get('date'):
                 cols.append(datefunc(get(r)[2]))
-            if opts['files_with_matches']:
+            if opts.get('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[r].changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
     found = False
     follow = opts.get('follow')
     for st, rev, fns in changeiter:
         if st == 'window':
             matches.clear()
         elif st == 'add':
             ctx = repo[rev]
             matches[rev] = {}
             for fn in fns:
                 if fn in skip:
                     continue
                 try:
                     grepbody(fn, rev, getfile(fn).read(ctx.filenode(fn)))
                     fstate.setdefault(fn, [])
                     if follow:
                         copied = getfile(fn).renamed(ctx.filenode(fn))
                         if copied:
                             copies.setdefault(rev, {})[fn] = copied[0]
                 except revlog.LookupError:
                     pass
         elif st == 'iter':
             for fn, m in util.sort(matches[rev].items()):
                 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']:
+                    if r and not opts.get('all'):
                         skip[fn] = True
                         if copy:
                             skip[copy] = True
                 fstate[fn] = m
                 if copy:
                     fstate[copy] = m
                 prev[fn] = rev
 
     for fn, state in util.sort(fstate.items()):
         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']:
+    if opts.get('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[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']))
+                            % (branch, branchrev, opts.get('rev')))
                 else:
                     ui.warn(_("no changes on branch %s are reachable from %s\n")
-                            % (branch, opts['rev']))
+                            % (branch, opts.get('rev')))
             heads.extend(bheads)
     if not heads:
         return 1
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in heads:
         displayer.show(changenode=n)
 
 def help_(ui, name=None, with_version=False):
     """show help for a command, extension, or list of commands
 
     With no arguments, print a list of commands and short help.
 
     Given a command name, print help for that command.
 
     Given an extension name, print help for that extension, and the
     commands it provides."""
     option_lists = []
 
     def addglobalopts(aliases):
         if ui.verbose:
             option_lists.append((_("global options:"), globalopts))
             if name == 'shortlist':
                 option_lists.append((_('use "hg help" for the full list '
                                        'of commands'), ()))
         else:
             if name == 'shortlist':
                 msg = _('use "hg help" for the full list of commands '
                         'or "hg -v" for details')
             elif aliases:
                 msg = _('use "hg -v help%s" to show aliases and '
                         'global options') % (name and " " + name or "")
             else:
                 msg = _('use "hg -v help %s" to show global options') % name
             option_lists.append((msg, ()))
 
     def helpcmd(name):
         if with_version:
             version_(ui)
             ui.write('\n')
 
         try:
             aliases, i = cmdutil.findcmd(ui, name, table)
         except cmdutil.AmbiguousCommand, inst:
             select = lambda c: c.lstrip('^').startswith(inst.args[0])
             helplist(_('list of commands:\n\n'), select)
             return
 
         # synopsis
         ui.write("%s\n" % i[2])
 
         # aliases
         if not ui.quiet and len(aliases) > 1:
             ui.write(_("\naliases: %s\n") % ', '.join(aliases[1:]))
 
         # description
         doc = gettext(i[0].__doc__)
         if not doc:
             doc = _("(No help text available)")
         if ui.quiet:
             doc = doc.splitlines(0)[0]
         ui.write("\n%s\n" % doc.rstrip())
 
         if not ui.quiet:
             # options
             if i[1]:
                 option_lists.append((_("options:\n"), i[1]))
 
             addglobalopts(False)
 
     def helplist(header, select=None):
         h = {}
         cmds = {}
         for c, e in table.items():
             f = c.split("|", 1)[0]
             if select and not select(f):
                 continue
+            if select is None and e[0].__module__ != __name__:
+                continue
             if name == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             if not ui.debugflag and f.startswith("debug"):
                 continue
             doc = gettext(e[0].__doc__)
             if not doc:
                 doc = _("(No help text available)")
             h[f] = doc.splitlines(0)[0].rstrip()
             cmds[f] = c.lstrip("^")
 
         if not h:
             ui.status(_('no commands defined\n'))
             return
 
         ui.status(header)
         fns = util.sort(h)
         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]))
 
+        exts = list(extensions.extensions())
+        if exts:
+            ui.write(_('\nenabled extensions:\n\n'))
+            maxlength = 0
+            exthelps = []
+            for ename, ext in exts:
+                doc = (ext.__doc__ or _('(no help text available)'))
+                ename = ename.split('.')[-1]
+                maxlength = max(len(ename), maxlength)
+                exthelps.append((ename, doc.splitlines(0)[0].strip()))
+            for ename, text in exthelps:
+                ui.write(_(' %s   %s\n') % (ename.ljust(maxlength), text))
+
         if not ui.quiet:
             addglobalopts(True)
 
     def helptopic(name):
         for names, header, doc in help.helptable:
             if name in names:
                 break
         else:
             raise cmdutil.UnknownCommand(name)
 
         # description
         if not doc:
             doc = _("(No help text available)")
         if callable(doc):
             doc = doc()
 
         ui.write("%s\n" % header)
         ui.write("%s\n" % doc.rstrip())
 
     def helpext(name):
         try:
             mod = extensions.find(name)
         except KeyError:
             raise cmdutil.UnknownCommand(name)
 
         doc = gettext(mod.__doc__) or _('No help text available')
         doc = doc.splitlines(0)
         ui.write(_('%s extension - %s\n') % (name.split('.')[-1], doc[0]))
         for d in doc[1:]:
             ui.write(d, '\n')
 
         ui.status('\n')
 
         try:
             ct = mod.cmdtable
         except AttributeError:
             ct = {}
 
         modcmds = dict.fromkeys([c.split('|', 1)[0] for c in ct])
         helplist(_('list of commands:\n\n'), modcmds.has_key)
 
     if name and name != 'shortlist':
         i = None
         for f in (helpcmd, helptopic, helpext):
             try:
                 f(name)
                 i = None
                 break
             except cmdutil.UnknownCommand, inst:
                 i = inst
         if i:
             raise i
 
     else:
         # program name
         if ui.verbose or with_version:
             version_(ui)
         else:
             ui.status(_("Mercurial Distributed SCM\n"))
         ui.status('\n')
 
         # list of commands
         if name == "shortlist":
             header = _('basic commands:\n\n')
         else:
             header = _('list of commands:\n\n')
 
         helplist(header)
 
     # list all option lists
     opt_output = []
     for title, options in option_lists:
         opt_output.append(("\n%s" % title, None))
         for shortopt, longopt, default, desc in options:
             if "DEPRECATED" in desc and not ui.verbose: continue
             opt_output.append(("%2s%s" % (shortopt and "-%s" % shortopt,
                                           longopt and " --%s" % longopt),
                                "%s%s" % (desc,
                                          default
                                          and _(" (default: %s)") % default
                                          or "")))
 
     if ui.verbose:
         ui.write(_("\nspecial help topics:\n"))
         topics = []
         for names, header, doc in help.helptable:
             topics.append((", ".join(names), header))
         topics_len = max([len(s[0]) for s in topics])
         for t, desc in topics:
             ui.write(" %-*s  %s\n" % (topics_len, t, desc))
 
     if opt_output:
         opts_len = max([len(line[0]) for line in opt_output if line[1]] or [0])
         for first, second in opt_output:
             if second:
                 ui.write(" %-*s  %s\n" % (opts_len, first, second))
             else:
                 ui.write("%s\n" % first)
 
 def identify(ui, repo, source=None,
              rev=None, num=None, id=None, branch=None, tags=None):
     """identify the working copy or specified revision
 
     With no revision, print a summary of the current state of the repo.
 
     With a path, do a lookup in another repository.
 
     This summary identifies the repository state using one or two parent
     hash identifiers, followed by a "+" if there are uncommitted changes
     in the working directory, a list of tags for this revision and a branch
     name for non-default branches.
     """
 
     if not repo and not source:
         raise util.Abort(_("There is no Mercurial repository here "
                            "(.hg not found)"))
 
     hexfunc = ui.debugflag and hex or short
     default = not (num or id or branch or tags)
     output = []
 
     if source:
         source, revs, checkout = hg.parseurl(ui.expandpath(source), [])
         srepo = hg.repository(ui, source)
         if not rev and revs:
             rev = revs[0]
         if not rev:
             rev = "tip"
         if num or branch or tags:
             raise util.Abort(
                 "can't query remote revision number, branch, or tags")
         output = [hexfunc(srepo.lookup(rev))]
     elif not rev:
         ctx = repo[None]
         parents = ctx.parents()
         changed = False
         if default or id or num:
             changed = ctx.files() + ctx.deleted()
         if default or id:
             output = ["%s%s" % ('+'.join([hexfunc(p.node()) for p in parents]),
                                 (changed) and "+" or "")]
         if num:
             output.append("%s%s" % ('+'.join([str(p.rev()) for p in parents]),
                                     (changed) and "+" or ""))
     else:
         ctx = repo[rev]
         if default or id:
             output = [hexfunc(ctx.node())]
         if num:
             output.append(str(ctx.rev()))
 
     if not source and default and not ui.quiet:
         b = util.tolocal(ctx.branch())
         if b != 'default':
             output.append("(%s)" % b)
 
         # multiple tags for a single parent separated by '/'
         t = "/".join(ctx.tags())
         if t:
             output.append(t)
 
     if branch:
         output.append(util.tolocal(ctx.branch()))
 
     if tags:
         output.extend(ctx.tags())
 
     ui.write("%s\n" % ' '.join(output))
 
 def import_(ui, repo, patch1, *patches, **opts):
     """import an ordered set of patches
 
     Import a list of patches and commit them individually.
 
     If there are outstanding changes in the working directory, import
     will abort unless given the -f flag.
 
     You can import a patch straight from a mail message. Even patches
     as attachments work (body part must be type text/plain or
     text/x-patch to be used). From and Subject headers of email
     message are used as default committer and commit message. All
     text/plain body parts before first diff are added to commit
     message.
 
     If the imported patch was generated by hg export, user and description
     from patch override values from message headers and body. Values
     given on command line with -m and -u override these.
 
     If --exact is specified, import will set the working directory
     to the parent of each patch before applying it, and will abort
     if the resulting changeset has a different ID than the one
     recorded in the patch. This may happen due to character set
     problems or other deficiencies in the text patch format.
 
     To read a patch from standard input, use patch name "-".
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
     patches = (patch1,) + patches
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
-    if opts.get('exact') or not opts['force']:
+    if opts.get('exact') or not opts.get('force'):
         cmdutil.bail_if_changed(repo)
 
     d = opts["base"]
     strip = opts["strip"]
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         for p in patches:
             pf = os.path.join(d, p)
 
             if pf == '-':
                 ui.status(_("applying patch from stdin\n"))
                 data = patch.extract(ui, sys.stdin)
             else:
                 ui.status(_("applying %s\n") % p)
                 if os.path.exists(pf):
                     data = patch.extract(ui, file(pf, 'rb'))
                 else:
                     data = patch.extract(ui, urllib.urlopen(pf))
             tmpname, message, user, date, branch, nodeid, p1, p2 = data
 
             if tmpname is None:
                 raise util.Abort(_('no diffs found'))
 
             try:
                 cmdline_message = cmdutil.logmessage(opts)
                 if cmdline_message:
                     # pickup the cmdline msg
                     message = cmdline_message
                 elif message:
                     # pickup the patch msg
                     message = message.strip()
                 else:
                     # launch the editor
                     message = None
                 ui.debug(_('message:\n%s\n') % message)
 
                 wp = repo.parents()
                 if opts.get('exact'):
                     if not nodeid or not p1:
                         raise util.Abort(_('not a mercurial patch'))
                     p1 = repo.lookup(p1)
                     p2 = repo.lookup(p2 or hex(nullid))
 
                     if p1 != wp[0].node():
                         hg.clean(repo, p1)
                     repo.dirstate.setparents(p1, p2)
                 elif p2:
                     try:
                         p1 = repo.lookup(p1)
                         p2 = repo.lookup(p2)
                         if p1 == wp[0].node():
                             repo.dirstate.setparents(p1, p2)
                     except RepoError:
                         pass
                 if opts.get('exact') or opts.get('import_branch'):
                     repo.dirstate.setbranch(branch or 'default')
 
                 files = {}
                 try:
                     fuzz = patch.patch(tmpname, ui, strip=strip, cwd=repo.root,
                                        files=files)
                 finally:
                     files = patch.updatedir(ui, repo, files)
                 if not opts.get('no_commit'):
                     n = repo.commit(files, message, opts.get('user') or user,
                                     opts.get('date') or date)
                     if opts.get('exact'):
                         if hex(n) != nodeid:
                             repo.rollback()
                             raise util.Abort(_('patch is damaged'
                                                ' or loses information'))
                     # Force a dirstate write so that the next transaction
                     # backups an up-do-date file.
                     repo.dirstate.write()
             finally:
                 os.unlink(tmpname)
     finally:
         del lock, wlock
 
 def incoming(ui, repo, source="default", **opts):
     """show new changesets found in source
 
     Show new changesets found in the specified path/URL or the default
     pull location. These are the changesets that would be pulled if a pull
     was requested.
 
     For remote repository, using --bundle avoids downloading the changesets
     twice if the incoming is followed by a pull.
 
     See pull for valid source format details.
     """
     limit = cmdutil.loglimit(opts)
-    source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
+    source, revs, checkout = hg.parseurl(ui.expandpath(source), opts.get('rev'))
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('comparing with %s\n') % util.hidepassword(source))
     if revs:
         revs = [other.lookup(rev) for rev in revs]
     incoming = repo.findincoming(other, heads=revs, force=opts["force"])
     if not incoming:
         try:
             os.unlink(opts["bundle"])
         except:
             pass
         ui.status(_("no changes found\n"))
         return 1
 
     cleanup = None
     try:
         fname = opts["bundle"]
         if fname or not other.local():
             # create a bundle (uncompressed if other repo is not local)
             if revs is None:
                 cg = other.changegroup(incoming, "incoming")
             else:
                 cg = other.changegroupsubset(incoming, revs, 'incoming')
             bundletype = other.local() and "HG10BZ" or "HG10UN"
             fname = cleanup = changegroup.writebundle(cg, fname, bundletype)
             # keep written bundle?
             if opts["bundle"]:
                 cleanup = None
             if not other.local():
                 # use the created uncompressed bundlerepo
                 other = bundlerepo.bundlerepository(ui, repo.root, fname)
 
         o = other.changelog.nodesbetween(incoming, revs)[0]
-        if opts['newest_first']:
+        if opts.get('newest_first'):
             o.reverse()
         displayer = cmdutil.show_changeset(ui, other, opts)
         count = 0
         for n in o:
             if count >= limit:
                 break
             parents = [p for p in other.changelog.parents(n) if p != nullid]
-            if opts['no_merges'] and len(parents) == 2:
+            if opts.get('no_merges') and len(parents) == 2:
                 continue
             count += 1
             displayer.show(changenode=n)
     finally:
         if hasattr(other, 'close'):
             other.close()
         if cleanup:
             os.unlink(cleanup)
 
 def init(ui, dest=".", **opts):
     """create a new repository in the given directory
 
     Initialize a new repository in the given directory. If the given
     directory does not exist, it is created.
 
     If no directory is given, the current directory is used.
 
     It is possible to specify an ssh:// URL as the destination.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.repository(ui, dest, create=1)
 
 def locate(ui, repo, *pats, **opts):
     """locate files matching specific patterns
 
     Print all files under Mercurial control whose names match the
     given patterns.
 
     This command searches the entire repository by default. To search
     just the current directory and its subdirectories, use
     "--include .".
 
     If no patterns are given to match, this command prints all file
     names.
 
     If you want to feed the output of this command into the "xargs"
     command, use the "-0" option to both this command and "xargs".
     This will avoid the problem of "xargs" treating single filenames
     that contain white space as multiple filenames.
     """
-    end = opts['print0'] and '\0' or '\n'
+    end = opts.get('print0') and '\0' or '\n'
     rev = opts.get('rev') or None
 
     ret = 1
     m = cmdutil.match(repo, pats, opts, default='relglob')
     m.bad = lambda x,y: False
     for abs in repo[rev].walk(m):
         if not rev and abs not in repo.dirstate:
             continue
-        if opts['fullpath']:
+        if opts.get('fullpath'):
             ui.write(os.path.join(repo.root, abs), end)
         else:
             ui.write(((pats and m.rel(abs)) or abs), end)
         ret = 0
 
     return ret
 
 def log(ui, repo, *pats, **opts):
     """show revision history of entire repository or files
 
     Print the revision history of the specified files or the entire
     project.
 
     File history is shown without following rename or copy history of
     files. Use -f/--follow with a file name to follow history across
     renames and copies. --follow without a file name will only show
     ancestors or descendants of the starting revision. --follow-first
     only follows the first parent of merge revisions.
 
     If no revision range is specified, the default is tip:0 unless
     --follow is set, in which case the working directory parent is
     used as the starting revision.
 
     See 'hg help dates' for a list of formats valid for -d/--date.
 
     By default this command outputs: changeset id and hash, tags,
     non-trivial parents, user, date and time, and a summary for each
     commit. When the -v/--verbose switch is used, the list of changed
     files and full commit message is shown.
 
     NOTE: log -p may generate unexpected diff output for merge
     changesets, as it will compare the merge changeset against its
     first parent only. Also, the files: list will only reflect files
     that are different from BOTH parents.
 
     """
 
     get = util.cachefunc(lambda r: repo[r].changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
 
     limit = cmdutil.loglimit(opts)
     count = 0
 
-    if opts['copies'] and opts['rev']:
-        endrev = max(cmdutil.revrange(repo, opts['rev'])) + 1
+    if opts.get('copies') and opts.get('rev'):
+        endrev = max(cmdutil.revrange(repo, opts.get('rev'))) + 1
     else:
         endrev = len(repo)
     rcache = {}
     ncache = {}
     def getrenamed(fn, rev):
         '''looks up all renames for a file (up to endrev) the first
         time the file is given. It indexes on the changerev and only
         parses the manifest if linkrev != changerev.
         Returns rename info for fn at changerev rev.'''
         if fn not in rcache:
             rcache[fn] = {}
             ncache[fn] = {}
             fl = repo.file(fn)
             for i in fl:
                 node = fl.node(i)
                 lr = fl.linkrev(node)
                 renamed = fl.renamed(node)
                 rcache[fn][lr] = renamed
                 if renamed:
                     ncache[fn][node] = renamed
                 if lr >= endrev:
                     break
         if rev in rcache[fn]:
             return rcache[fn][rev]
 
         # If linkrev != rev (i.e. rev not found in rcache) fallback to
         # filectx logic.
 
         try:
             return repo[rev][fn].renamed()
         except revlog.LookupError:
             pass
         return None
 
     df = False
     if opts["date"]:
         df = util.matchdate(opts["date"])
 
-    only_branches = opts['only_branch']
+    only_branches = opts.get('only_branch')
 
     displayer = cmdutil.show_changeset(ui, repo, opts, True, matchfn)
     for st, rev, fns in changeiter:
         if st == 'add':
             changenode = repo.changelog.node(rev)
             parents = [p for p in repo.changelog.parentrevs(rev)
                        if p != nullrev]
-            if opts['no_merges'] and len(parents) == 2:
+            if opts.get('no_merges') and len(parents) == 2:
                 continue
-            if opts['only_merges'] and len(parents) != 2:
+            if opts.get('only_merges') and len(parents) != 2:
                 continue
 
             if only_branches:
                 revbranch = get(rev)[5]['branch']
                 if revbranch not in only_branches:
                     continue
 
             if df:
                 changes = get(rev)
                 if not df(changes[2][0]):
                     continue
 
-            if opts['keyword']:
+            if opts.get('keyword'):
                 changes = get(rev)
                 miss = 0
                 for k in [kw.lower() for kw in opts['keyword']]:
                     if not (k in changes[1].lower() or
                             k in changes[4].lower() or
                             k in " ".join(changes[3]).lower()):
                         miss = 1
                         break
                 if miss:
                     continue
 
             copies = []
             if opts.get('copies') and rev:
                 for fn in get(rev)[3]:
                     rename = getrenamed(fn, rev)
                     if rename:
                         copies.append((fn, rename[0]))
             displayer.show(rev, changenode, copies=copies)
         elif st == 'iter':
             if count == limit: break
             if displayer.flush(rev):
                 count += 1
 
 def manifest(ui, repo, node=None, rev=None):
     """output the current or given revision of the project manifest
 
     Print a list of version controlled files for the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     The manifest is the list of files being version controlled. If no revision
     is given then the first parent of the working directory is used.
 
     With -v flag, print file permissions, symlink and executable bits. With
     --debug flag, print file revision hashes.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not node:
         node = rev
 
     decor = {'l':'644 @ ', 'x':'755 * ', '':'644   '}
     ctx = repo[node]
     for f in ctx:
         if ui.debugflag:
             ui.write("%40s " % hex(ctx.manifest()[f]))
         if ui.verbose:
             ui.write(decor[ctx.flags(f)])
         ui.write("%s\n" % f)
 
 def merge(ui, repo, node=None, force=None, rev=None):
     """merge working directory with another revision
 
     Merge the contents of the current working directory and the
     requested revision. Files that changed between either parent are
     marked as changed for the next commit and a commit must be
     performed before any further updates are allowed.
 
     If no revision is specified, the working directory's parent is a
     head revision, and the current branch contains exactly one other head,
     the other head is merged with by default. Otherwise, an explicit
     revision to merge with must be provided.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
     if not node:
         node = rev
 
     if not node:
         branch = repo.changectx(None).branch()
         bheads = repo.branchheads(branch)
         if len(bheads) > 2:
             raise util.Abort(_("branch '%s' has %d heads - "
                                "please merge with an explicit rev") %
                              (branch, len(bheads)))
 
         parent = repo.dirstate.parents()[0]
         if len(bheads) == 1:
             if len(repo.heads()) > 1:
                 raise util.Abort(_("branch '%s' has one head - "
                                    "please merge with an explicit rev") %
                                  branch)
             msg = _('there is nothing to merge')
             if parent != repo.lookup(repo[None].branch()):
                 msg = _('%s - use "hg update" instead') % msg
             raise util.Abort(msg)
 
         if parent not in bheads:
             raise util.Abort(_('working dir not at a head rev - '
                                'use "hg update" or merge with an explicit rev'))
         node = parent == bheads[0] and bheads[-1] or bheads[0]
     return hg.merge(repo, node, force=force)
 
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in destination
 
     Show changesets not found in the specified destination repository or
     the default push location. These are the changesets that would be pushed
     if a push was requested.
 
     See pull for valid destination format details.
     """
     limit = cmdutil.loglimit(opts)
     dest, revs, checkout = hg.parseurl(
-        ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
+        ui.expandpath(dest or 'default-push', dest or 'default'), opts.get('rev'))
     cmdutil.setremoteconfig(ui, opts)
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
     other = hg.repository(ui, dest)
     ui.status(_('comparing with %s\n') % util.hidepassword(dest))
-    o = repo.findoutgoing(other, force=opts['force'])
+    o = repo.findoutgoing(other, force=opts.get('force'))
     if not o:
         ui.status(_("no changes found\n"))
         return 1
     o = repo.changelog.nodesbetween(o, revs)[0]
-    if opts['newest_first']:
+    if opts.get('newest_first'):
         o.reverse()
     displayer = cmdutil.show_changeset(ui, repo, opts)
     count = 0
     for n in o:
         if count >= limit:
             break
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
-        if opts['no_merges'] and len(parents) == 2:
+        if opts.get('no_merges') and len(parents) == 2:
             continue
         count += 1
         displayer.show(changenode=n)
 
 def parents(ui, repo, file_=None, **opts):
     """show the parents of the working dir or revision
 
     Print the working directory's parent revisions. If a
     revision is given via --rev, the parent of that revision
     will be printed. If a file argument is given, revision in
     which the file was last changed (before the working directory
     revision or the argument to --rev if given) is printed.
     """
     rev = opts.get('rev')
     if rev:
         ctx = repo[rev]
     else:
         ctx = repo[None]
 
     if file_:
         m = cmdutil.match(repo, (file_,), opts)
         if m.anypats() or len(m.files()) != 1:
             raise util.Abort(_('can only specify an explicit file name'))
         file_ = m.files()[0]
         filenodes = []
         for cp in ctx.parents():
             if not cp:
                 continue
             try:
                 filenodes.append(cp.filenode(file_))
             except revlog.LookupError:
                 pass
         if not filenodes:
             raise util.Abort(_("'%s' not found in manifest!") % file_)
         fl = repo.file(file_)
         p = [repo.lookup(fl.linkrev(fn)) for fn in filenodes]
     else:
         p = [cp.node() for cp in ctx.parents()]
 
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in p:
         if n != nullid:
             displayer.show(changenode=n)
 
 def paths(ui, repo, search=None):
     """show definition of symbolic path names
 
     Show definition of symbolic path name NAME. If no name is given, show
     definition of available names.
 
     Path names are defined in the [paths] section of /etc/mercurial/hgrc
     and $HOME/.hgrc. If run inside a repository, .hg/hgrc is used, too.
     """
     if search:
         for name, path in ui.configitems("paths"):
             if name == search:
                 ui.write("%s\n" % util.hidepassword(path))
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, util.hidepassword(path)))
 
 def postincoming(ui, repo, modheads, optupdate, checkout):
     if modheads == 0:
         return
     if optupdate:
         if modheads <= 1 or checkout:
             return hg.update(repo, checkout)
         else:
             ui.status(_("not updating, since new heads added\n"))
     if modheads > 1:
         ui.status(_("(run 'hg heads' to see heads, 'hg merge' to merge)\n"))
     else:
         ui.status(_("(run 'hg update' to get a working copy)\n"))
 
 def pull(ui, repo, source="default", **opts):
     """pull changes from the specified source
 
     Pull changes from a remote repository to a local one.
 
     This finds all changes from the repository at the specified path
     or URL and adds them to the local repository. By default, this
     does not update the copy of the project in the working directory.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       http://[user[:pass]@]host[:port]/[path]
       https://[user[:pass]@]host[:port]/[path]
       ssh://[user[:pass]@]host[:port]/[path]
       static-http://host[:port]/[path]
 
     Paths in the local filesystem can either point to Mercurial
     repositories or to bundle files (as created by 'hg bundle' or
     'hg incoming --bundle'). The static-http:// protocol, albeit slow,
     allows access to a Mercurial repository where you simply use a web
     server to publish the .hg directory as static content.
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to pull.
 
     Some notes about using SSH with Mercurial:
     - SSH requires an accessible shell account on the destination machine
       and a copy of hg in the remote path or specified with as remotecmd.
     - path is relative to the remote user's home directory by default.
       Use an extra slash at the start of a path to specify an absolute path:
         ssh://example.com//tmp/repository
     - Mercurial doesn't use its own compression via SSH; the right thing
       to do is to configure it in your ~/.ssh/config, e.g.:
         Host *.mylocalnetwork.example.com
           Compression no
         Host *
           Compression yes
       Alternatively specify "ssh -C" as your ssh command in your hgrc or
       with the --ssh command line option.
     """
-    source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
+    source, revs, checkout = hg.parseurl(ui.expandpath(source), opts.get('rev'))
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('pulling from %s\n') % util.hidepassword(source))
     if revs:
         try:
             revs = [other.lookup(rev) for rev in revs]
         except NoCapability:
             error = _("Other repository doesn't support revision lookup, "
                       "so a rev cannot be specified.")
             raise util.Abort(error)
 
-    modheads = repo.pull(other, heads=revs, force=opts['force'])
-    return postincoming(ui, repo, modheads, opts['update'], checkout)
+    modheads = repo.pull(other, heads=revs, force=opts.get('force'))
+    return postincoming(ui, repo, modheads, opts.get('update'), checkout)
 
 def push(ui, repo, dest=None, **opts):
     """push changes to the specified destination
 
     Push changes from the local repository to the given destination.
 
     This is the symmetrical operation for pull. It helps to move
     changes from the current repository to a different one. If the
     destination is local this is identical to a pull in that directory
     from the current one.
 
     By default, push will refuse to run if it detects the result would
     increase the number of remote heads. This generally indicates the
     the client has forgotten to pull and merge before pushing.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       ssh://[user[:pass]@]host[:port]/[path]
       http://[user[:pass]@]host[:port]/[path]
       https://[user[:pass]@]host[:port]/[path]
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to push. If -r is used, the named changeset and all its
     ancestors will be pushed to the remote repository.
 
     Look at the help text for the pull command for important details
     about ssh:// URLs.
 
     Pushing to http:// and https:// URLs is only possible, if this
     feature is explicitly enabled on the remote Mercurial server.
     """
     dest, revs, checkout = hg.parseurl(
-        ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
+        ui.expandpath(dest or 'default-push', dest or 'default'), opts.get('rev'))
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, dest)
     ui.status(_('pushing to %s\n') % util.hidepassword(dest))
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
-    r = repo.push(other, opts['force'], revs=revs)
+    r = repo.push(other, opts.get('force'), revs=revs)
     return r == 0
 
 def rawcommit(ui, repo, *pats, **opts):
     """raw commit interface (DEPRECATED)
 
     (DEPRECATED)
     Lowlevel commit, for use in helper scripts.
 
     This command is not intended to be used by normal users, as it is
     primarily useful for importing from other SCMs.
 
     This command is now deprecated and will be removed in a future
     release, please use debugsetparents and commit instead.
     """
 
     ui.warn(_("(the rawcommit command is deprecated)\n"))
 
     message = cmdutil.logmessage(opts)
 
     files = cmdutil.match(repo, pats, opts).files()
-    if opts['files']:
+    if opts.get('files'):
         files += open(opts['files']).read().splitlines()
 
     parents = [repo.lookup(p) for p in opts['parent']]
 
     try:
         repo.rawcommit(files, message, opts['user'], opts['date'], *parents)
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def recover(ui, repo):
     """roll back an interrupted transaction
 
     Recover from an interrupted commit or pull.
 
     This command tries to fix the repository status after an interrupted
     operation. It should only be necessary when Mercurial suggests it.
     """
     if repo.recover():
         return hg.verify(repo)
     return 1
 
 def remove(ui, repo, *pats, **opts):
     """remove the specified files on the next commit
 
     Schedule the indicated files for removal from the repository.
 
     This only removes files from the current branch, not from the entire
     project history. -A can be used to remove only files that have already
     been deleted, -f can be used to force deletion, and -Af can be used
     to remove files from the next revision without deleting them.
 
     The following table details the behavior of remove for different file
     states (columns) and option combinations (rows). The file states are
     Added, Clean, Modified and Missing (as reported by hg status). The
     actions are Warn, Remove (from branch) and Delete (from disk).
 
            A  C  M  !
     none   W  RD W  R
     -f     R  RD RD R
     -A     W  W  W  R
     -Af    R  R  R  R
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see hg revert.
     """
 
     after, force = opts.get('after'), opts.get('force')
     if not pats and not after:
         raise util.Abort(_('no files specified'))
 
     m = cmdutil.match(repo, pats, opts)
     s = repo.status(match=m, clean=True)
     modified, added, deleted, clean = s[0], s[1], s[3], s[6]
 
     def warn(files, reason):
         for f in files:
             ui.warn(_('not removing %s: file %s (use -f to force removal)\n')
                     % (m.rel(f), reason))
 
     if force:
         remove, forget = modified + deleted + clean, added
     elif after:
         remove, forget = deleted, []
         warn(modified + added + clean, _('still exists'))
     else:
         remove, forget = deleted + clean, []
         warn(modified, _('is modified'))
         warn(added, _('has been marked for add'))
 
     for f in util.sort(remove + forget):
         if ui.verbose or not m.exact(f):
             ui.status(_('removing %s\n') % m.rel(f))
 
     repo.forget(forget)
     repo.remove(remove, unlink=not after)
 
 def rename(ui, repo, *pats, **opts):
     """rename files; equivalent of copy + remove
 
     Mark dest as copies of sources; mark sources for deletion. If
     dest is a directory, copies are put in that directory. If dest is
     a file, there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory. If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a rename
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts, rename=True)
     finally:
         del wlock
 
 def resolve(ui, repo, *pats, **opts):
     """resolve file merges from a branch merge or update
 
     This command will attempt to resolve unresolved merges from the
     last update or merge command. This will use the local file
     revision preserved at the last update or merge to cleanly retry
     the file merge attempt. With no file or options specified, this
     command will attempt to resolve all unresolved files.
 
     The codes used to show the status of files are:
     U = unresolved
     R = resolved
     """
 
     if len([x for x in opts if opts[x]]) > 1:
         raise util.Abort(_("too many options specified"))
 
     ms = merge_.mergestate(repo)
     m = cmdutil.match(repo, pats, opts)
 
     for f in ms:
         if m(f):
             if opts.get("list"):
                 ui.write("%s %s\n" % (ms[f].upper(), f))
             elif opts.get("mark"):
                 ms.mark(f, "r")
             elif opts.get("unmark"):
                 ms.mark(f, "u")
             else:
                 wctx = repo[None]
                 mctx = wctx.parents()[-1]
                 ms.resolve(f, wctx, mctx)
 
 def revert(ui, repo, *pats, **opts):
     """restore individual files or dirs to an earlier state
 
     (use update -r to check out earlier revisions, revert does not
     change the working dir parents)
 
     With no revision specified, revert the named files or directories
     to the contents they had in the parent of the working directory.
     This restores the contents of the affected files to an unmodified
     state and unschedules adds, removes, copies, and renames. If the
     working directory has two parents, you must explicitly specify the
     revision to revert to.
 
     Using the -r option, revert the given files or directories to their
     contents as of a specific revision. This can be helpful to "roll
     back" some or all of an earlier change.
     See 'hg help dates' for a list of formats valid for -d/--date.
 
     Revert modifies the working directory. It does not commit any
     changes, or change the parent of the working directory. If you
     revert to a revision other than the parent of the working
     directory, the reverted files will thus appear modified
     afterwards.
 
     If a file has been deleted, it is restored. If the executable
     mode of a file was changed, it is reset.
 
     If names are given, all files matching the names are reverted.
     If no arguments are given, no files are reverted.
 
     Modified files are saved with a .orig suffix before reverting.
     To disable these backups, use --no-backup.
     """
 
     if opts["date"]:
         if opts["rev"]:
             raise util.Abort(_("you can't specify a revision and a date"))
         opts["rev"] = cmdutil.finddate(ui, repo, opts["date"])
 
-    if not pats and not opts['all']:
+    if not pats and not opts.get('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:
+    if not opts.get('rev') and p2 != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
-    ctx = repo[opts['rev']]
+    ctx = repo[opts.get('rev')]
     node = ctx.node()
     mf = ctx.manifest()
     if node == parent:
         pmf = mf
     else:
         pmf = None
 
     # need all matching names in dirstate and manifest of target rev,
     # so have to walk both. do not print errors if files exist in one
     # but not other.
 
     names = {}
 
     wlock = repo.wlock()
     try:
         # walk dirstate.
         files = []
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = lambda x,y: False
         for abs in repo.walk(m):
             names[abs] = m.rel(abs), m.exact(abs)
 
         # walk target manifest.
 
         def badfn(path, msg):
             if path in names:
                 return False
             path_ = path + '/'
             for f in names:
                 if f.startswith(path_):
                     return False
             repo.ui.warn("%s: %s\n" % (m.rel(path), msg))
             return False
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = badfn
         for abs in repo[node].walk(m):
             if abs not in names:
                 names[abs] = m.rel(abs), m.exact(abs)
 
         m = cmdutil.matchfiles(repo, names)
         changes = repo.status(match=m)[:4]
         modified, added, removed, deleted = map(dict.fromkeys, changes)
 
         # if f is a rename, also revert the source
         cwd = repo.getcwd()
         for f in added:
             src = repo.dirstate.copied(f)
             if src and src not in names and repo.dirstate[src] == 'r':
                 removed[src] = None
                 names[src] = (repo.pathto(src, cwd), True)
 
         def removeforget(abs):
             if repo.dirstate[abs] == 'a':
                 return _('forgetting %s\n')
             return _('removing %s\n')
 
         revert = ([], _('reverting %s\n'))
         add = ([], _('adding %s\n'))
         remove = ([], removeforget)
         undelete = ([], _('undeleting %s\n'))
 
         disptable = (
             # dispatch table:
             #   file state
             #   action if in target manifest
             #   action if not in target manifest
             #   make backup if in target manifest
             #   make backup if not in target manifest
             (modified, revert, remove, True, True),
             (added, revert, remove, True, False),
             (removed, undelete, None, False, False),
             (deleted, revert, remove, False, False),
             )
 
         for abs, (rel, exact) in util.sort(names.items()):
             mfentry = mf.get(abs)
             target = repo.wjoin(abs)
             def handle(xlist, dobackup):
                 xlist[0].append(abs)
-                if dobackup and not opts['no_backup'] and util.lexists(target):
+                if dobackup and not opts.get('no_backup') and util.lexists(target):
                     bakname = "%s.orig" % rel
                     ui.note(_('saving current version of %s as %s\n') %
                             (rel, bakname))
                     if not opts.get('dry_run'):
                         util.copyfile(target, bakname)
                 if ui.verbose or not exact:
                     msg = xlist[1]
                     if not isinstance(msg, basestring):
                         msg = msg(abs)
                     ui.status(msg % rel)
             for table, hitlist, misslist, backuphit, backupmiss in disptable:
                 if abs not in table: continue
                 # file has changed in dirstate
                 if mfentry:
                     handle(hitlist, backuphit)
                 elif misslist is not None:
                     handle(misslist, backupmiss)
                 break
             else:
                 if abs not in repo.dirstate:
                     if mfentry:
                         handle(add, True)
                     elif exact:
                         ui.warn(_('file not managed: %s\n') % rel)
                     continue
                 # file has not changed in dirstate
                 if node == parent:
                     if exact: ui.warn(_('no changes needed to %s\n') % rel)
                     continue
                 if pmf is None:
                     # only need parent manifest in this unlikely case,
                     # so do not read by default
                     pmf = repo[parent].manifest()
                 if abs in pmf:
                     if mfentry:
                         # if version of file is same in parent and target
                         # manifests, do nothing
                         if (pmf[abs] != mfentry or
                             pmf.flags(abs) != mf.flags(abs)):
                             handle(revert, False)
                     else:
                         handle(remove, False)
 
         if not opts.get('dry_run'):
             def checkout(f):
                 fc = ctx[f]
                 repo.wwrite(f, fc.data(), fc.flags())
 
             audit_path = util.path_auditor(repo.root)
             for f in remove[0]:
                 if repo.dirstate[f] == 'a':
                     repo.dirstate.forget(f)
                     continue
                 audit_path(f)
                 try:
                     util.unlink(repo.wjoin(f))
                 except OSError:
                     pass
                 repo.dirstate.remove(f)
 
             normal = None
             if node == parent:
                 # We're reverting to our parent. If possible, we'd like status
                 # to report the file as clean. We have to use normallookup for
                 # merges to avoid losing information about merged/dirty files.
                 if p2 != nullid:
                     normal = repo.dirstate.normallookup
                 else:
                     normal = repo.dirstate.normal
             for f in revert[0]:
                 checkout(f)
                 if normal:
                     normal(f)
 
             for f in add[0]:
                 checkout(f)
                 repo.dirstate.add(f)
 
             normal = repo.dirstate.normallookup
             if node == parent and p2 == nullid:
                 normal = repo.dirstate.normal
             for f in undelete[0]:
                 checkout(f)
                 normal(f)
 
     finally:
         del wlock
 
 def rollback(ui, repo):
     """roll back the last transaction
 
     This command should be used with care. There is only one level of
     rollback, and there is no way to undo a rollback. It will also
     restore the dirstate at the time of the last transaction, losing
     any dirstate changes since that time.
 
     Transactions are used to encapsulate the effects of all commands
     that create new changesets or propagate existing changesets into a
     repository. For example, the following commands are transactional,
     and their effects can be rolled back:
 
       commit
       import
       pull
       push (with this repository as destination)
       unbundle
 
     This command is not intended for use on public repositories. Once
     changes are visible for pull by other users, rolling a transaction
     back locally is ineffective (someone else may already have pulled
     the changes). Furthermore, a race is possible with readers of the
     repository; for example an in-progress pull from the repository
     may fail if a rollback is performed.
     """
     repo.rollback()
 
 def root(ui, repo):
     """print the root (top) of the current working dir
 
     Print the root directory of the current repository.
     """
     ui.write(repo.root + "\n")
 
 def serve(ui, repo, **opts):
     """export the repository via HTTP
 
     Start a local HTTP repository browser and pull server.
 
     By default, the server logs accesses to stdout and errors to
     stderr. Use the "-A" and "-E" options to log to files.
     """
 
     if opts["stdio"]:
         if repo is None:
             raise RepoError(_("There is no Mercurial repository here"
                               " (.hg not found)"))
         s = sshserver.sshserver(ui, repo)
         s.serve_forever()
 
     parentui = ui.parentui or ui
     optlist = ("name templates style address port prefix ipv6"
                " accesslog errorlog webdir_conf certificate")
     for o in optlist.split():
         if opts[o]:
             parentui.setconfig("web", o, str(opts[o]))
             if (repo is not None) and (repo.ui != parentui):
                 repo.ui.setconfig("web", o, str(opts[o]))
 
     if repo is None and not ui.config("web", "webdir_conf"):
         raise RepoError(_("There is no Mercurial repository here"
                           " (.hg not found)"))
 
     class service:
         def init(self):
             util.set_signal_handler()
             self.httpd = hgweb.server.create_server(parentui, repo)
 
             if not ui.verbose: return
 
             if self.httpd.prefix:
                 prefix = self.httpd.prefix.strip('/') + '/'
             else:
                 prefix = ''
 
             port = ':%d' % self.httpd.port
             if port == ':80':
                 port = ''
 
             bindaddr = self.httpd.addr
             if bindaddr == '0.0.0.0':
                 bindaddr = '*'
             elif ':' in bindaddr: # IPv6
                 bindaddr = '[%s]' % bindaddr
 
             fqaddr = self.httpd.fqaddr
             if ':' in fqaddr:
                 fqaddr = '[%s]' % fqaddr
             ui.status(_('listening at http://%s%s/%s (bound to %s:%d)\n') %
                       (fqaddr, port, prefix, bindaddr, self.httpd.port))
 
         def run(self):
             self.httpd.serve_forever()
 
     service = service()
 
     cmdutil.service(opts, initfn=service.init, runfn=service.run)
 
 def status(ui, repo, *pats, **opts):
     """show changed files in the working directory
 
     Show status of files in the repository. If names are given, only
     files that match are shown. Files that are clean or ignored or
     source of a copy/move operation, are not listed unless -c (clean),
     -i (ignored), -C (copies) or -A is given. Unless options described
     with "show only ..." are given, the options -mardu are used.
 
     Option -q/--quiet hides untracked (unknown and ignored) files
     unless explicitly requested with -u/--unknown or -i/-ignored.
 
     NOTE: status may appear to disagree with diff if permissions have
     changed or a merge has occurred. The standard diff format does not
     report permission changes and diff only reports changes relative
     to one merge parent.
 
     If one revision is given, it is used as the base revision.
     If two revisions are given, the difference between them is shown.
 
     The codes used to show the status of files are:
     M = modified
     A = added
     R = removed
     C = clean
     ! = deleted, but still tracked
     ? = not tracked
     I = ignored
       = the previous added file was copied from here
     """
 
     node1, node2 = cmdutil.revpair(repo, opts.get('rev'))
     cwd = (pats and repo.getcwd()) or ''
-    end = opts['print0'] and '\0' or '\n'
+    end = opts.get('print0') and '\0' or '\n'
     copy = {}
     states = 'modified added removed deleted unknown ignored clean'.split()
     show = [k for k in states if opts[k]]
-    if opts['all']:
+    if opts.get('all'):
         show += ui.quiet and (states[:4] + ['clean']) or states
     if not show:
         show = ui.quiet and states[:4] or states[:5]
 
     stat = repo.status(node1, node2, cmdutil.match(repo, pats, opts),
                        'ignored' in show, 'clean' in show, 'unknown' in show)
     changestates = zip(states, 'MAR!?IC', stat)
 
-    if (opts['all'] or opts['copies']) and not opts['no_status']:
+    if (opts.get('all') or opts.get('copies')) and not opts.get('no_status'):
         ctxn = repo[nullid]
         ctx1 = repo[node1]
         ctx2 = repo[node2]
         added = stat[1]
         if node2 is None:
             added = stat[0] + stat[1] # merged?
 
         for k, v in copies.copies(repo, ctx1, ctx2, ctxn)[0].items():
             if k in added:
                 copy[k] = v
             elif v in added:
                 copy[v] = k
 
     for state, char, files in changestates:
         if state in show:
             format = "%s %%s%s" % (char, end)
-            if opts['no_status']:
+            if opts.get('no_status'):
                 format = "%%s%s" % end
 
             for f in files:
                 ui.write(format % repo.pathto(f, cwd))
                 if f in copy:
                     ui.write('  %s%s' % (repo.pathto(copy[f], cwd), end))
 
 def tag(ui, repo, name1, *names, **opts):
     """add one or more tags for the current or given revision
 
     Name a particular revision using <name>.
 
     Tags are used to name particular revisions of the repository and are
     very useful to compare different revisions, to go back to significant
     earlier versions or to mark branch points as releases, etc.
 
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     To facilitate version control, distribution, and merging of tags,
     they are stored as a file named ".hgtags" which is managed
     similarly to other project files and can be hand-edited if
     necessary. The file '.hg/localtags' is used for local tags (not
     shared among repositories).
 
     See 'hg help dates' for a list of formats valid for -d/--date.
     """
 
     rev_ = "."
     names = (name1,) + names
     if len(names) != len(dict.fromkeys(names)):
         raise util.Abort(_('tag names must be unique'))
     for n in names:
         if n in ['tip', '.', 'null']:
             raise util.Abort(_('the name \'%s\' is reserved') % n)
-    if opts['rev'] and opts['remove']:
+    if opts.get('rev') and opts.get('remove'):
         raise util.Abort(_("--rev and --remove are incompatible"))
-    if opts['rev']:
+    if opts.get('rev'):
         rev_ = opts['rev']
-    message = opts['message']
-    if opts['remove']:
-        expectedtype = opts['local'] and 'local' or 'global'
+    message = opts.get('message')
+    if opts.get('remove'):
+        expectedtype = opts.get('local') and 'local' or 'global'
         for n in names:
             if not repo.tagtype(n):
                 raise util.Abort(_('tag \'%s\' does not exist') % n)
             if repo.tagtype(n) != expectedtype:
                 raise util.Abort(_('tag \'%s\' is not a %s tag') %
                                  (n, expectedtype))
         rev_ = nullid
         if not message:
             message = _('Removed tag %s') % ', '.join(names)
-    elif not opts['force']:
+    elif not opts.get('force'):
         for n in names:
             if n in repo.tags():
                 raise util.Abort(_('tag \'%s\' already exists '
                                    '(use -f to force)') % n)
     if not rev_ and repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
     r = repo[rev_].node()
 
     if not message:
         message = (_('Added tag %s for changeset %s') %
                    (', '.join(names), short(r)))
 
     date = opts.get('date')
     if date:
         date = util.parsedate(date)
 
-    repo.tag(names, r, message, opts['local'], opts['user'], date)
+    repo.tag(names, r, message, opts.get('local'), opts.get('user'), date)
 
 def tags(ui, repo):
     """list repository tags
 
     List the repository tags.
 
     This lists both regular and local tags. When the -v/--verbose switch
     is used, a third column "local" is printed for local tags.
     """
 
     l = repo.tagslist()
     l.reverse()
     hexfunc = ui.debugflag and hex or short
     tagtype = ""
 
     for t, n in l:
         if ui.quiet:
             ui.write("%s\n" % t)
             continue
 
         try:
             hn = hexfunc(n)
             r = "%5d:%s" % (repo.changelog.rev(n), hn)
         except revlog.LookupError:
             r = "    ?:%s" % hn
         else:
             spaces = " " * (30 - util.locallen(t))
             if ui.verbose:
                 if repo.tagtype(t) == 'local':
                     tagtype = " local"
                 else:
                     tagtype = ""
             ui.write("%s%s %s%s\n" % (t, spaces, r, tagtype))
 
 def tip(ui, repo, **opts):
     """show the tip revision
 
     The tip revision (usually just called the tip) is the most
     recently added changeset in the repository, the most recently
     changed head.
 
     If you have just made a commit, that commit will be the tip. If
     you have just pulled changes from another repository, the tip of
     that repository becomes the current tip. The "tip" tag is special
     and cannot be renamed or assigned to a different changeset.
     """
     cmdutil.show_changeset(ui, repo, opts).show(len(repo) - 1)
 
 def unbundle(ui, repo, fname1, *fnames, **opts):
     """apply one or more changegroup files
 
     Apply one or more compressed changegroup files generated by the
     bundle command.
     """
     fnames = (fname1,) + fnames
 
     lock = None
     try:
         lock = repo.lock()
         for fname in fnames:
             if os.path.exists(fname):
                 f = open(fname, "rb")
             else:
                 f = urllib.urlopen(fname)
             gen = changegroup.readbundle(f, fname)
             modheads = repo.addchangegroup(gen, 'unbundle', 'bundle:' + fname)
     finally:
         del lock
 
-    return postincoming(ui, repo, modheads, opts['update'], None)
+    return postincoming(ui, repo, modheads, opts.get('update'), None)
 
 def update(ui, repo, node=None, rev=None, clean=False, date=None):
     """update working directory
 
     Update the repository's working directory to the specified revision,
     or the tip of the current branch if none is specified. Use null as
     the revision to remove the working copy (like 'hg clone -U').
 
     If the requested revision is a descendant of the working
     directory, any outstanding changes in the working directory will
     be merged into the result. If it is not directly descended but is
     on the same named branch, update aborts with a suggestion to use
     merge or update -C instead.
 
     If the requested revision is on a different named branch and the
     working directory is clean, update quietly switches branches.
 
     If you want to update just one file to an older revision, use revert.
 
     See 'hg help dates' for a list of formats valid for --date.
     """
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if date:
         if rev:
             raise util.Abort(_("you can't specify a revision and a date"))
         rev = cmdutil.finddate(ui, repo, date)
 
     if clean:
         return hg.clean(repo, rev)
     else:
         return hg.update(repo, rev)
 
 def verify(ui, repo):
     """verify the integrity of the repository
 
     Verify the integrity of the current repository.
 
     This will perform an extensive check of the repository's
     integrity, validating the hashes and checksums of each entry in
     the changelog, manifest, and tracked files, as well as the
     integrity of their crosslinks and indices.
     """
     return hg.verify(repo)
 
 def version_(ui):
     """output version and copyright information"""
     ui.write(_("Mercurial Distributed SCM (version %s)\n")
              % version.get_version())
     ui.status(_(
         "\nCopyright (C) 2005-2008 Matt Mackall <[e-mail]> and others\n"
         "This is free software; see the source for copying conditions. "
         "There is NO\nwarranty; "
         "not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     ))
 
 # Command options and aliases are listed here, alphabetically
 
 globalopts = [
     ('R', 'repository', '',
      _('repository root directory or symbolic path name')),
     ('', 'cwd', '', _('change working directory')),
     ('y', 'noninteractive', None,
      _('do not prompt, assume \'yes\' for any required answers')),
     ('q', 'quiet', None, _('suppress output')),
     ('v', 'verbose', None, _('enable additional output')),
     ('', 'config', [], _('set/override config option')),
     ('', 'debug', None, _('enable debugging output')),
     ('', 'debugger', None, _('start debugger')),
     ('', 'encoding', util._encoding, _('set the charset encoding')),
     ('', 'encodingmode', util._encodingmode, _('set the charset encoding mode')),
     ('', 'lsprof', None, _('print improved command execution profile')),
     ('', 'traceback', None, _('print traceback on exception')),
     ('', 'time', None, _('time how long the command takes')),
     ('', 'profile', None, _('print command execution profile')),
     ('', 'version', None, _('output version information and exit')),
     ('h', 'help', None, _('display help and exit')),
 ]
 
 dryrunopts = [('n', 'dry-run', None,
                _('do not perform actions, just print output'))]
 
 remoteopts = [
     ('e', 'ssh', '', _('specify ssh command to use')),
     ('', 'remotecmd', '', _('specify hg command to run on the remote side')),
 ]
 
 walkopts = [
     ('I', 'include', [], _('include names matching the given patterns')),
     ('X', 'exclude', [], _('exclude names matching the given patterns')),
 ]
 
 commitopts = [
     ('m', 'message', '', _('use <text> as commit message')),
     ('l', 'logfile', '', _('read commit message from <file>')),
 ]
 
 commitopts2 = [
     ('d', 'date', '', _('record datecode as commit date')),
     ('u', 'user', '', _('record user as committer')),
 ]
 
 templateopts = [
     ('', 'style', '', _('display using template map file')),
     ('', 'template', '', _('display with template')),
 ]
 
 logopts = [
     ('p', 'patch', None, _('show patch')),
     ('l', 'limit', '', _('limit number of changes displayed')),
     ('M', 'no-merges', None, _('do not show merges')),
 ] + templateopts
 
 diffopts = [
     ('a', 'text', None, _('treat all files as text')),
     ('g', 'git', None, _('use git extended diff format')),
     ('', 'nodates', None, _("don't include dates in diff headers"))
 ]
 
 diffopts2 = [
     ('p', 'show-function', None, _('show which function each change is in')),
     ('w', 'ignore-all-space', None,
      _('ignore white space when comparing lines')),
     ('b', 'ignore-space-change', None,
      _('ignore changes in the amount of white space')),
     ('B', 'ignore-blank-lines', None,
      _('ignore changes whose lines are all blank')),
     ('U', 'unified', '', _('number of lines of context to show'))
 ]
 
 table = {
     "^add": (add, walkopts + dryrunopts, _('hg add [OPTION]... [FILE]...')),
     "addremove":
         (addremove,
          [('s', 'similarity', '',
            _('guess renamed files by similarity (0<=s<=100)')),
          ] + walkopts + dryrunopts,
          _('hg addremove [OPTION]... [FILE]...')),
     "^annotate|blame":
         (annotate,
          [('r', 'rev', '', _('annotate the specified revision')),
           ('f', 'follow', None, _('follow file copies and renames')),
           ('a', 'text', None, _('treat all files as text')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('d', 'date', None, _('list the date (short with -q)')),
           ('n', 'number', None, _('list the revision number (default)')),
           ('c', 'changeset', None, _('list the changeset')),
           ('l', 'line-number', None,
            _('show line number at the first appearance'))
          ] + walkopts,
          _('hg annotate [-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...')),
     "archive":
         (archive,
          [('', 'no-decode', None, _('do not pass files through decoders')),
           ('p', 'prefix', '', _('directory prefix for files in archive')),
           ('r', 'rev', '', _('revision to distribute')),
           ('t', 'type', '', _('type of distribution to create')),
          ] + walkopts,
          _('hg archive [OPTION]... DEST')),
     "backout":
         (backout,
          [('', 'merge', None,
            _('merge with old dirstate parent after backout')),
           ('', 'parent', '', _('parent to choose when backing out merge')),
           ('r', 'rev', '', _('revision to backout')),
          ] + walkopts + commitopts + commitopts2,
          _('hg backout [OPTION]... [-r] REV')),
     "bisect":
         (bisect,
          [('r', 'reset', False, _('reset bisect state')),
           ('g', 'good', False, _('mark changeset good')),
           ('b', 'bad', False, _('mark changeset bad')),
           ('s', 'skip', False, _('skip testing changeset')),
           ('U', 'noupdate', False, _('do not update to target'))],
          _("hg bisect [-gbsr] [REV]")),
     "branch":
         (branch,
          [('f', 'force', None,
            _('set branch name even if it shadows an existing branch')),
           ('C', 'clean', None, _('reset branch name to parent branch name'))],
          _('hg branch [-fC] [NAME]')),
     "branches":
         (branches,
          [('a', 'active', False,
            _('show only branches that have unmerged heads'))],
          _('hg branches [-a]')),
     "bundle":
         (bundle,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a changeset up to which you would like to bundle')),
           ('', 'base', [],
            _('a base changeset to specify instead of a destination')),
           ('a', 'all', None, _('bundle all changesets in the repository')),
           ('t', 'type', 'bzip2', _('bundle compression type to use')),
          ] + remoteopts,
          _('hg bundle [-f] [-a] [-r REV]... [--base REV]... FILE [DEST]')),
     "cat":
         (cat,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('r', 'rev', '', _('print the given revision')),
           ('', 'decode', None, _('apply any matching decode filter')),
          ] + walkopts,
          _('hg cat [OPTION]... FILE...')),
     "^clone":
         (clone,
          [('U', 'noupdate', None,
           _('the clone will only contain a repository (no working copy)')),
           ('r', 'rev', [],
            _('a changeset you would like to have after cloning')),
           ('', 'pull', None, _('use pull protocol to copy metadata')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
          ] + remoteopts,
          _('hg clone [OPTION]... SOURCE [DEST]')),
     "^commit|ci":
         (commit,
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before committing')),
          ] + walkopts + commitopts + commitopts2,
          _('hg commit [OPTION]... [FILE]...')),
     "copy|cp":
         (copy,
          [('A', 'after', None, _('record a copy that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg copy [OPTION]... [SOURCE]... DEST')),
     "debugancestor": (debugancestor, [],
                       _('hg debugancestor [INDEX] REV1 REV2')),
     "debugcheckstate": (debugcheckstate, [], _('hg debugcheckstate')),
     "debugcomplete":
         (debugcomplete,
          [('o', 'options', None, _('show the command options'))],
          _('hg debugcomplete [-o] CMD')),
     "debugdate":
         (debugdate,
          [('e', 'extended', None, _('try extended date formats'))],
          _('hg debugdate [-e] DATE [RANGE]')),
     "debugdata": (debugdata, [], _('hg debugdata FILE REV')),
     "debugfsinfo": (debugfsinfo, [], _('hg debugfsinfo [PATH]')),
     "debugindex": (debugindex, [], _('hg debugindex FILE')),
     "debugindexdot": (debugindexdot, [], _('hg debugindexdot FILE')),
     "debuginstall": (debuginstall, [], _('hg debuginstall')),
     "debugrawcommit|rawcommit":
         (rawcommit,
          [('p', 'parent', [], _('parent')),
           ('F', 'files', '', _('file list'))
           ] + commitopts + commitopts2,
          _('hg debugrawcommit [OPTION]... [FILE]...')),
     "debugrebuildstate":
         (debugrebuildstate,
          [('r', 'rev', '', _('revision to rebuild to'))],
          _('hg debugrebuildstate [-r REV] [REV]')),
     "debugrename":
         (debugrename,
          [('r', 'rev', '', _('revision to debug'))],
          _('hg debugrename [-r REV] FILE')),
     "debugsetparents":
         (debugsetparents,
          [],
          _('hg debugsetparents REV1 [REV2]')),
     "debugstate":
         (debugstate,
          [('', 'nodates', None, _('do not display the saved mtime'))],
          _('hg debugstate [OPTS]')),
     "debugwalk": (debugwalk, walkopts, _('hg debugwalk [OPTION]... [FILE]...')),
     "^diff":
         (diff,
          [('r', 'rev', [], _('revision'))
          ] + diffopts + diffopts2 + walkopts,
          _('hg diff [OPTION]... [-r REV1 [-r REV2]] [FILE]...')),
     "^export":
         (export,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('', 'switch-parent', None, _('diff against the second parent'))
           ] + diffopts,
          _('hg export [OPTION]... [-o OUTFILESPEC] REV...')),
     "grep":
         (grep,
          [('0', 'print0', None, _('end fields with NUL')),
           ('', 'all', None, _('print all revisions that match')),
           ('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('i', 'ignore-case', None, _('ignore case when matching')),
           ('l', 'files-with-matches', None,
            _('print only filenames and revs that match')),
           ('n', 'line-number', None, _('print matching line numbers')),
           ('r', 'rev', [], _('search in given revision range')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('d', 'date', None, _('list the date (short with -q)')),
          ] + walkopts,
          _('hg grep [OPTION]... PATTERN [FILE]...')),
     "heads":
         (heads,
          [('r', 'rev', '', _('show only heads which are descendants of rev')),
          ] + templateopts,
          _('hg heads [-r REV] [REV]...')),
     "help": (help_, [], _('hg help [COMMAND]')),
     "identify|id":
         (identify,
          [('r', 'rev', '', _('identify the specified rev')),
           ('n', 'num', None, _('show local revision number')),
           ('i', 'id', None, _('show global revision id')),
           ('b', 'branch', None, _('show branch')),
           ('t', 'tags', None, _('show tags'))],
          _('hg identify [-nibt] [-r REV] [SOURCE]')),
     "import|patch":
         (import_,
          [('p', 'strip', 1,
            _('directory strip option for patch. This has the same\n'
              'meaning as the corresponding patch option')),
           ('b', 'base', '', _('base path')),
           ('f', 'force', None,
            _('skip check for outstanding uncommitted changes')),
           ('', 'no-commit', None, _("don't commit, just update the working directory")),
           ('', 'exact', None,
            _('apply patch to the nodes from which it was generated')),
           ('', 'import-branch', None,
            _('Use any branch information in patch (implied by --exact)'))] +
          commitopts + commitopts2,
          _('hg import [OPTION]... PATCH...')),
     "incoming|in":
         (incoming,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'bundle', '', _('file to store the bundles into')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to pull')),
          ] + logopts + remoteopts,
          _('hg incoming [-p] [-n] [-M] [-f] [-r REV]...'
            ' [--bundle FILENAME] [SOURCE]')),
     "^init":
         (init,
          remoteopts,
          _('hg init [-e CMD] [--remotecmd CMD] [DEST]')),
     "locate":
         (locate,
          [('r', 'rev', '', _('search the repository as it stood at rev')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('f', 'fullpath', None,
            _('print complete paths from the filesystem root')),
          ] + walkopts,
          _('hg locate [OPTION]... [PATTERN]...')),
     "^log|history":
         (log,
          [('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('', 'follow-first', None,
            _('only follow the first parent of merge changesets')),
           ('d', 'date', '', _('show revs matching date spec')),
           ('C', 'copies', None, _('show copied files')),
           ('k', 'keyword', [], _('do case-insensitive search for a keyword')),
           ('r', 'rev', [], _('show the specified revision or range')),
           ('', 'removed', None, _('include revs where files were removed')),
           ('m', 'only-merges', None, _('show only merges')),
           ('b', 'only-branch', [],
             _('show only changesets within the given named branch')),
           ('P', 'prune', [], _('do not display revision or any of its ancestors')),
          ] + logopts + walkopts,
          _('hg log [OPTION]... [FILE]')),
     "manifest":
         (manifest,
          [('r', 'rev', '', _('revision to display'))],
          _('hg manifest [-r REV]')),
     "^merge":
         (merge,
          [('f', 'force', None, _('force a merge with outstanding changes')),
           ('r', 'rev', '', _('revision to merge')),
              ],
          _('hg merge [-f] [[-r] REV]')),
     "outgoing|out":
         (outgoing,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to push')),
           ('n', 'newest-first', None, _('show newest record first')),
          ] + logopts + remoteopts,
          _('hg outgoing [-M] [-p] [-n] [-f] [-r REV]... [DEST]')),
     "^parents":
         (parents,
          [('r', 'rev', '', _('show parents from the specified rev')),
          ] + templateopts,
          _('hg parents [-r REV] [FILE]')),
     "paths": (paths, [], _('hg paths [NAME]')),
     "^pull":
         (pull,
          [('u', 'update', None,
            _('update to new tip if changesets were pulled')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to pull')),
          ] + remoteopts,
          _('hg pull [-u] [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [SOURCE]')),
     "^push":
         (push,
          [('f', 'force', None, _('force push')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to push')),
          ] + remoteopts,
          _('hg push [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]')),
     "recover": (recover, [], _('hg recover')),
     "^remove|rm":
         (remove,
          [('A', 'after', None, _('record delete for missing files')),
           ('f', 'force', None,
            _('remove (and delete) file even if added or modified')),
          ] + walkopts,
          _('hg remove [OPTION]... FILE...')),
     "rename|mv":
         (rename,
          [('A', 'after', None, _('record a rename that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg rename [OPTION]... SOURCE... DEST')),
     "resolve":
         (resolve,
          [('l', 'list', None, _('list state of files needing merge')),
           ('m', 'mark', None, _('mark files as resolved')),
           ('u', 'unmark', None, _('unmark files as resolved'))],
           _('hg resolve [OPTION] [FILES...]')),
     "revert":
         (revert,
          [('a', 'all', None, _('revert all changes when no arguments given')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision to revert to')),
           ('', 'no-backup', None, _('do not save backup copies of files')),
          ] + walkopts + dryrunopts,
          _('hg revert [OPTION]... [-r REV] [NAME]...')),
     "rollback": (rollback, [], _('hg rollback')),
     "root": (root, [], _('hg root')),
     "^serve":
         (serve,
          [('A', 'accesslog', '', _('name of access log file to write to')),
           ('d', 'daemon', None, _('run server in background')),
           ('', 'daemon-pipefds', '', _('used internally by daemon mode')),
           ('E', 'errorlog', '', _('name of error log file to write to')),
           ('p', 'port', 0, _('port to listen on (default: 8000)')),
           ('a', 'address', '', _('address to listen on (default: all interfaces)')),
           ('', 'prefix', '', _('prefix path to serve from (default: server root)')),
           ('n', 'name', '',
            _('name to show in web pages (default: working dir)')),
           ('', 'webdir-conf', '', _('name of the webdir config file'
                                     ' (serve more than one repo)')),
           ('', 'pid-file', '', _('name of file to write process ID to')),
           ('', 'stdio', None, _('for remote clients')),
           ('t', 'templates', '', _('web templates to use')),
           ('', 'style', '', _('template style to use')),
           ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
           ('', 'certificate', '', _('SSL certificate file'))],
          _('hg serve [OPTION]...')),
     "showconfig|debugconfig":
         (showconfig,
          [('u', 'untrusted', None, _('show untrusted configuration options'))],
          _('hg showconfig [-u] [NAME]...')),
     "^status|st":
         (status,
          [('A', 'all', None, _('show status of all files')),
           ('m', 'modified', None, _('show only modified files')),
           ('a', 'added', None, _('show only added files')),
           ('r', 'removed', None, _('show only removed files')),
           ('d', 'deleted', None, _('show only deleted (but tracked) files')),
           ('c', 'clean', None, _('show only files without changes')),
           ('u', 'unknown', None, _('show only unknown (not tracked) files')),
           ('i', 'ignored', None, _('show only ignored files')),
           ('n', 'no-status', None, _('hide status prefix')),
           ('C', 'copies', None, _('show source of copied files')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('', 'rev', [], _('show difference from revision')),
          ] + walkopts,
          _('hg status [OPTION]... [FILE]...')),
     "tag":
         (tag,
          [('f', 'force', None, _('replace existing tag')),
           ('l', 'local', None, _('make the tag local')),
           ('r', 'rev', '', _('revision to tag')),
           ('', 'remove', None, _('remove a tag')),
           # -l/--local is already there, commitopts cannot be used
           ('m', 'message', '', _('use <text> as commit message')),
          ] + commitopts2,
          _('hg tag [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME...')),
     "tags": (tags, [], _('hg tags')),
     "tip":
         (tip,
          [('p', 'patch', None, _('show patch')),
          ] + templateopts,
          _('hg tip [-p]')),
     "unbundle":
         (unbundle,
          [('u', 'update', None,
            _('update to new tip if changesets were unbundled'))],
          _('hg unbundle [-u] FILE...')),
     "^update|up|checkout|co":
         (update,
          [('C', 'clean', None, _('overwrite locally modified files (no backup)')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision'))],
          _('hg update [-C] [-d DATE] [[-r] REV]')),
     "verify": (verify, [], _('hg verify')),
     "version": (version_, [], _('hg version')),
 }
 
 norepo = ("clone init version help debugcomplete debugdata"
           " debugindex debugindexdot debugdate debuginstall debugfsinfo")
 optionalrepo = ("identify paths serve showconfig debugancestor")

mercurial/dirstate.py

@@ -1,584 +1,584
 """
 dirstate.py - working directory tracking for mercurial
 
 Copyright 2005-2007 Matt Mackall <[e-mail]>
 
 This software may be used and distributed according to the terms
 of the GNU General Public License, incorporated herein by reference.
 """
 
 from node import nullid
 from i18n import _
 import struct, os, stat, util, errno, ignore
 import cStringIO, osutil, sys, parsers
 
 _unknown = ('?', 0, 0, 0)
 _format = ">cllll"
 
 def _finddirs(path):
     pos = path.rfind('/')
     while pos != -1:
         yield path[:pos]
         pos = path.rfind('/', 0, pos)
 
 def _incdirs(dirs, path):
     for base in _finddirs(path):
         if base in dirs:
             dirs[base] += 1
             return
         dirs[base] = 1
 
 def _decdirs(dirs, path):
     for base in _finddirs(path):
         if dirs[base] > 1:
             dirs[base] -= 1
             return
         del dirs[base]
 
 class dirstate(object):
 
     def __init__(self, opener, ui, root):
         self._opener = opener
         self._root = root
         self._rootdir = os.path.join(root, '')
         self._dirty = False
         self._dirtypl = False
         self._ui = ui
 
     def __getattr__(self, name):
         if name == '_map':
             self._read()
             return self._map
         elif name == '_copymap':
             self._read()
             return self._copymap
         elif name == '_foldmap':
             _foldmap = {}
             for name in self._map:
                 norm = os.path.normcase(name)
                 _foldmap[norm] = name
             self._foldmap = _foldmap
             return self._foldmap
         elif name == '_branch':
             try:
                 self._branch = (self._opener("branch").read().strip()
                                 or "default")
             except IOError:
                 self._branch = "default"
             return self._branch
         elif name == '_pl':
             self._pl = [nullid, nullid]
             try:
                 st = self._opener("dirstate").read(40)
                 if len(st) == 40:
                     self._pl = st[:20], st[20:40]
             except IOError, err:
                 if err.errno != errno.ENOENT: raise
             return self._pl
         elif name == '_dirs':
             dirs = {}
             for f,s in self._map.iteritems():
                 if s[0] != 'r':
                     _incdirs(dirs, f)
             self._dirs = dirs
             return self._dirs
         elif name == '_ignore':
             files = [self._join('.hgignore')]
             for name, path in self._ui.configitems("ui"):
                 if name == 'ignore' or name.startswith('ignore.'):
                     files.append(os.path.expanduser(path))
             self._ignore = ignore.ignore(self._root, files, self._ui.warn)
             return self._ignore
         elif name == '_slash':
             self._slash = self._ui.configbool('ui', 'slash') and os.sep != '/'
             return self._slash
         elif name == '_checklink':
             self._checklink = util.checklink(self._root)
             return self._checklink
         elif name == '_checkexec':
             self._checkexec = util.checkexec(self._root)
             return self._checkexec
         elif name == '_checkcase':
             self._checkcase = not util.checkcase(self._join('.hg'))
             return self._checkcase
         elif name == 'normalize':
             if self._checkcase:
                 self.normalize = self._normalize
             else:
                 self.normalize = lambda x, y=False: x
             return self.normalize
         else:
             raise AttributeError(name)
 
     def _join(self, f):
         # much faster than os.path.join()
         # it's safe because f is always a relative path
         return self._rootdir + f
 
     def flagfunc(self, fallback):
         if self._checklink:
             if self._checkexec:
                 def f(x):
                     p = self._join(x)
                     if os.path.islink(p):
                         return 'l'
                     if util.is_exec(p):
                         return 'x'
                     return ''
                 return f
             def f(x):
                 if os.path.islink(self._join(x)):
                     return 'l'
                 if 'x' in fallback(x):
                     return 'x'
                 return ''
             return f
         if self._checkexec:
             def f(x):
                 if 'l' in fallback(x):
                     return 'l'
                 if util.is_exec(self._join(x)):
                     return 'x'
                 return ''
             return f
         return fallback
 
     def getcwd(self):
         cwd = os.getcwd()
         if cwd == self._root: return ''
         # self._root ends with a path separator if self._root is '/' or 'C:\'
         rootsep = self._root
         if not util.endswithsep(rootsep):
             rootsep += os.sep
         if cwd.startswith(rootsep):
             return cwd[len(rootsep):]
         else:
             # we're outside the repo. return an absolute path.
             return cwd
 
     def pathto(self, f, cwd=None):
         if cwd is None:
             cwd = self.getcwd()
         path = util.pathto(self._root, cwd, f)
         if self._slash:
             return util.normpath(path)
         return path
 
     def __getitem__(self, key):
         ''' current states:
         n  normal
         m  needs merging
         r  marked for removal
         a  marked for addition
         ?  not tracked'''
         return self._map.get(key, ("?",))[0]
 
     def __contains__(self, key):
         return key in self._map
 
     def __iter__(self):
         for x in util.sort(self._map):
             yield x
 
     def parents(self):
         return self._pl
 
     def branch(self):
         return self._branch
 
     def setparents(self, p1, p2=nullid):
         self._dirty = self._dirtypl = True
         self._pl = p1, p2
 
     def setbranch(self, branch):
         self._branch = branch
         self._opener("branch", "w").write(branch + '\n')
 
     def _read(self):
         self._map = {}
         self._copymap = {}
         try:
             st = self._opener("dirstate").read()
         except IOError, err:
             if err.errno != errno.ENOENT: raise
             return
         if not st:
             return
 
-        p = parsers.parse_dirstate(self._map, self._copymap, st);
+        p = parsers.parse_dirstate(self._map, self._copymap, st)
         if not self._dirtypl:
             self._pl = p
 
     def invalidate(self):
         for a in "_map _copymap _foldmap _branch _pl _dirs _ignore".split():
             if a in self.__dict__:
                 delattr(self, a)
         self._dirty = False
 
     def copy(self, source, dest):
         if source == dest:
             return
         self._dirty = True
         self._copymap[dest] = source
 
     def copied(self, file):
         return self._copymap.get(file, None)
 
     def copies(self):
         return self._copymap
 
     def _droppath(self, f):
         if self[f] not in "?r" and "_dirs" in self.__dict__:
             _decdirs(self._dirs, f)
 
     def _addpath(self, f, check=False):
         oldstate = self[f]
         if check or oldstate == "r":
             if '\r' in f or '\n' in f:
                 raise util.Abort(
                     _("'\\n' and '\\r' disallowed in filenames: %r") % f)
             if f in self._dirs:
                 raise util.Abort(_('directory %r already in dirstate') % f)
             # shadows
             for d in _finddirs(f):
                 if d in self._dirs:
                     break
                 if d in self._map and self[d] != 'r':
                     raise util.Abort(
                         _('file %r in dirstate clashes with %r') % (d, f))
         if oldstate in "?r" and "_dirs" in self.__dict__:
             _incdirs(self._dirs, f)
 
     def normal(self, f):
         'mark a file normal and clean'
         self._dirty = True
         self._addpath(f)
         s = os.lstat(self._join(f))
         self._map[f] = ('n', s.st_mode, s.st_size, int(s.st_mtime))
         if f in self._copymap:
             del self._copymap[f]
 
     def normallookup(self, f):
         'mark a file normal, but possibly dirty'
         if self._pl[1] != nullid and f in self._map:
             # if there is a merge going on and the file was either
             # in state 'm' or dirty before being removed, restore that state.
             entry = self._map[f]
             if entry[0] == 'r' and entry[2] in (-1, -2):
                 source = self._copymap.get(f)
                 if entry[2] == -1:
                     self.merge(f)
                 elif entry[2] == -2:
                     self.normaldirty(f)
                 if source:
                     self.copy(source, f)
                 return
             if entry[0] == 'm' or entry[0] == 'n' and entry[2] == -2:
                 return
         self._dirty = True
         self._addpath(f)
         self._map[f] = ('n', 0, -1, -1)
         if f in self._copymap:
             del self._copymap[f]
 
     def normaldirty(self, f):
         'mark a file normal, but dirty'
         self._dirty = True
         self._addpath(f)
         self._map[f] = ('n', 0, -2, -1)
         if f in self._copymap:
             del self._copymap[f]
 
     def add(self, f):
         'mark a file added'
         self._dirty = True
         self._addpath(f, True)
         self._map[f] = ('a', 0, -1, -1)
         if f in self._copymap:
             del self._copymap[f]
 
     def remove(self, f):
         'mark a file removed'
         self._dirty = True
         self._droppath(f)
         size = 0
         if self._pl[1] != nullid and f in self._map:
             entry = self._map[f]
             if entry[0] == 'm':
                 size = -1
             elif entry[0] == 'n' and entry[2] == -2:
                 size = -2
         self._map[f] = ('r', 0, size, 0)
         if size == 0 and f in self._copymap:
             del self._copymap[f]
 
     def merge(self, f):
         'mark a file merged'
         self._dirty = True
         s = os.lstat(self._join(f))
         self._addpath(f)
         self._map[f] = ('m', s.st_mode, s.st_size, int(s.st_mtime))
         if f in self._copymap:
             del self._copymap[f]
 
     def forget(self, f):
         'forget a file'
         self._dirty = True
         try:
             self._droppath(f)
             del self._map[f]
         except KeyError:
             self._ui.warn(_("not in dirstate: %s\n") % f)
 
     def _normalize(self, path, knownpath=False):
         norm_path = os.path.normcase(path)
         fold_path = self._foldmap.get(norm_path, None)
         if fold_path is None:
             if knownpath or not os.path.exists(os.path.join(self._root, path)):
                 fold_path = path
             else:
                 fold_path = self._foldmap.setdefault(norm_path,
                                 util.fspath(path, self._root))
         return fold_path
 
     def clear(self):
         self._map = {}
         if "_dirs" in self.__dict__:
             delattr(self, "_dirs");
         self._copymap = {}
         self._pl = [nullid, nullid]
         self._dirty = True
 
     def rebuild(self, parent, files):
         self.clear()
         for f in files:
             if 'x' in files.flags(f):
                 self._map[f] = ('n', 0777, -1, 0)
             else:
                 self._map[f] = ('n', 0666, -1, 0)
         self._pl = (parent, nullid)
         self._dirty = True
 
     def write(self):
         if not self._dirty:
             return
         st = self._opener("dirstate", "w", atomictemp=True)
 
         try:
             gran = int(self._ui.config('dirstate', 'granularity', 1))
         except ValueError:
             gran = 1
         limit = sys.maxint
         if gran > 0:
             limit = util.fstat(st).st_mtime - gran
 
         cs = cStringIO.StringIO()
         copymap = self._copymap
         pack = struct.pack
         write = cs.write
         write("".join(self._pl))
         for f, e in self._map.iteritems():
             if f in copymap:
                 f = "%s\0%s" % (f, copymap[f])
             if e[3] > limit and e[0] == 'n':
                 e = (e[0], 0, -1, -1)
             e = pack(_format, e[0], e[1], e[2], e[3], len(f))
             write(e)
             write(f)
         st.write(cs.getvalue())
         st.rename()
         self._dirty = self._dirtypl = False
 
     def _dirignore(self, f):
         if f == '.':
             return False
         if self._ignore(f):
             return True
         for p in _finddirs(f):
             if self._ignore(p):
                 return True
         return False
 
     def walk(self, match, unknown, ignored):
         '''
         walk recursively through the directory tree, finding all files
         matched by the match function
 
         results are yielded in a tuple (filename, stat), where stat
         and st is the stat result if the file was found in the directory.
         '''
 
         def fwarn(f, msg):
             self._ui.warn('%s: %s\n' % (self.pathto(f), msg))
             return False
         badfn = fwarn
         if hasattr(match, 'bad'):
             badfn = match.bad
 
         def badtype(f, mode):
             kind = 'unknown'
             if stat.S_ISCHR(mode): kind = _('character device')
             elif stat.S_ISBLK(mode): kind = _('block device')
             elif stat.S_ISFIFO(mode): kind = _('fifo')
             elif stat.S_ISSOCK(mode): kind = _('socket')
             elif stat.S_ISDIR(mode): kind = _('directory')
             self._ui.warn(_('%s: unsupported file type (type is %s)\n')
                           % (self.pathto(f), kind))
 
         ignore = self._ignore
         dirignore = self._dirignore
         if ignored:
             ignore = util.never
             dirignore = util.never
         elif not unknown:
             # if unknown and ignored are False, skip step 2
             ignore = util.always
             dirignore = util.always
 
         matchfn = match.matchfn
         dmap = self._map
         normpath = util.normpath
         normalize = self.normalize
         listdir = osutil.listdir
         lstat = os.lstat
         pconvert = util.pconvert
         getkind = stat.S_IFMT
         dirkind = stat.S_IFDIR
         regkind = stat.S_IFREG
         lnkkind = stat.S_IFLNK
         join = self._join
         work = []
         wadd = work.append
 
         files = util.unique(match.files())
         if not files or '.' in files:
             files = ['']
         results = {'.hg': None}
 
         # step 1: find all explicit files
         for ff in util.sort(files):
             nf = normalize(normpath(ff))
             if nf in results:
                 continue
 
             try:
                 st = lstat(join(nf))
                 kind = getkind(st.st_mode)
                 if kind == dirkind:
                     if not dirignore(nf):
                         wadd(nf)
                 elif kind == regkind or kind == lnkkind:
                     results[nf] = st
                 else:
                     badtype(ff, kind)
                     if nf in dmap:
                         results[nf] = None
             except OSError, inst:
                 keep = False
                 prefix = nf + "/"
                 for fn in dmap:
                     if nf == fn or fn.startswith(prefix):
                         keep = True
                         break
                 if not keep:
                     if inst.errno != errno.ENOENT:
                         fwarn(ff, inst.strerror)
                     elif badfn(ff, inst.strerror):
                         if (nf in dmap or not ignore(nf)) and matchfn(nf):
                             results[nf] = None
 
         # step 2: visit subdirectories
         while work:
             nd = work.pop()
             if hasattr(match, 'dir'):
                 match.dir(nd)
             skip = None
             if nd == '.':
                 nd = ''
             else:
                 skip = '.hg'
             try:
                 entries = listdir(join(nd), stat=True, skip=skip)
             except OSError, inst:
                 if inst.errno == errno.EACCES:
                     fwarn(nd, inst.strerror)
                     continue
                 raise
             for f, kind, st in entries:
                 nf = normalize(nd and (nd + "/" + f) or f, True)
                 if nf not in results:
                     if kind == dirkind:
                         if not ignore(nf):
                             wadd(nf)
                         if nf in dmap and matchfn(nf):
                             results[nf] = None
                     elif kind == regkind or kind == lnkkind:
                         if nf in dmap:
                             if matchfn(nf):
                                 results[nf] = st
                         elif matchfn(nf) and not ignore(nf):
                             results[nf] = st
                     elif nf in dmap and matchfn(nf):
                         results[nf] = None
 
         # step 3: report unseen items in the dmap hash
         visit = util.sort([f for f in dmap if f not in results and match(f)])
         for nf, st in zip(visit, util.statfiles([join(i) for i in visit])):
             if not st is None and not getkind(st.st_mode) in (regkind, lnkkind):
                 st = None
             results[nf] = st
 
         del results['.hg']
         return results
 
     def status(self, match, ignored, clean, unknown):
         listignored, listclean, listunknown = ignored, clean, unknown
         lookup, modified, added, unknown, ignored = [], [], [], [], []
         removed, deleted, clean = [], [], []
 
         _join = self._join
         lstat = os.lstat
         cmap = self._copymap
         dmap = self._map
         ladd = lookup.append
         madd = modified.append
         aadd = added.append
         uadd = unknown.append
         iadd = ignored.append
         radd = removed.append
         dadd = deleted.append
         cadd = clean.append
 
         for fn, st in self.walk(match, listunknown, listignored).iteritems():
             if fn not in dmap:
                 if (listignored or match.exact(fn)) and self._dirignore(fn):
                     if listignored:
                         iadd(fn)
                 elif listunknown:
                     uadd(fn)
                 continue
 
             state, mode, size, time = dmap[fn]
 
             if not st and state in "nma":
                 dadd(fn)
             elif state == 'n':
                 if (size >= 0 and
                     (size != st.st_size
                      or ((mode ^ st.st_mode) & 0100 and self._checkexec))
                     or size == -2
                     or fn in self._copymap):
                     madd(fn)
                 elif time != int(st.st_mtime):
                     ladd(fn)
                 elif listclean:
                     cadd(fn)
             elif state == 'm':
                 madd(fn)
             elif state == 'a':
                 aadd(fn)
             elif state == 'r':
                 radd(fn)
 
         return (lookup, modified, added, removed, deleted, unknown, ignored,
                 clean)

mercurial/parsers.c

@@ -1,413 +1,414
 /*
  parsers.c - efficient content parsing
 
  Copyright 2008 Matt Mackall <[e-mail]> and others
 
  This software may be used and distributed according to the terms of
  the GNU General Public License, incorporated herein by reference.
 */
 
 #include <Python.h>
 #include <ctype.h>
 #include <string.h>
 
 static int hexdigit(char c)
 {
 	if (c >= '0' && c <= '9')
 		return c - '0';
 	if (c >= 'a' && c <= 'f')
 		return c - 'a' + 10;
 	if (c >= 'A' && c <= 'F')
 		return c - 'A' + 10;
 
 	PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
 	return 0;
 }
 
 /*
  * Turn a hex-encoded string into binary.
  */
 static PyObject *unhexlify(const char *str, int len)
 {
 	PyObject *ret;
 	const char *c;
 	char *d;
 
 	ret = PyString_FromStringAndSize(NULL, len / 2);
 	if (!ret)
 		return NULL;
 
 	d = PyString_AS_STRING(ret);
 	for (c = str; c < str + len;) {
 		int hi = hexdigit(*c++);
 		int lo = hexdigit(*c++);
 		*d++ = (hi << 4) | lo;
 	}
 
 	return ret;
 }
 
 /*
  * This code assumes that a manifest is stitched together with newline
  * ('\n') characters.
  */
 static PyObject *parse_manifest(PyObject *self, PyObject *args)
 {
 	PyObject *mfdict, *fdict;
 	char *str, *cur, *start, *zero;
 	int len;
 
 	if (!PyArg_ParseTuple(args, "O!O!s#:parse_manifest",
 			      &PyDict_Type, &mfdict,
 			      &PyDict_Type, &fdict,
 			      &str, &len))
 		goto quit;
 
 	for (start = cur = str, zero = NULL; cur < str + len; cur++) {
 		PyObject *file = NULL, *node = NULL;
 		PyObject *flags = NULL;
 		int nlen;
 
 		if (!*cur) {
 			zero = cur;
 			continue;
 		}
 		else if (*cur != '\n')
 			continue;
 
 		if (!zero) {
 			PyErr_SetString(PyExc_ValueError,
 					"manifest entry has no separator");
 			goto quit;
 		}
 
 		file = PyString_FromStringAndSize(start, zero - start);
 		if (!file)
 			goto bail;
 
 		nlen = cur - zero - 1;
 
 		node = unhexlify(zero + 1, nlen > 40 ? 40 : nlen);
 		if (!node)
 			goto bail;
 
 		if (nlen > 40) {
 			PyObject *flags;
 
 			flags = PyString_FromStringAndSize(zero + 41,
 							   nlen - 40);
 			if (!flags)
 				goto bail;
 
 			if (PyDict_SetItem(fdict, file, flags) == -1)
 				goto bail;
 		}
 
 		if (PyDict_SetItem(mfdict, file, node) == -1)
 			goto bail;
 
 		start = cur + 1;
 		zero = NULL;
 
 		Py_XDECREF(flags);
 		Py_XDECREF(node);
 		Py_XDECREF(file);
 		continue;
 	bail:
 		Py_XDECREF(flags);
 		Py_XDECREF(node);
 		Py_XDECREF(file);
 		goto quit;
 	}
 
 	if (len > 0 && *(cur - 1) != '\n') {
 		PyErr_SetString(PyExc_ValueError,
 				"manifest contains trailing garbage");
 		goto quit;
 	}
 
 	Py_INCREF(Py_None);
 	return Py_None;
 quit:
 	return NULL;
 }
 
 #ifdef _WIN32
 # ifdef _MSC_VER
 /* msvc 6.0 has problems */
 #  define inline __inline
 typedef unsigned long uint32_t;
+typedef unsigned __int64 uint64_t;
 # else
 #  include <stdint.h>
 # endif
 static uint32_t ntohl(uint32_t x)
 {
 	return ((x & 0x000000ffUL) << 24) |
 		((x & 0x0000ff00UL) <<  8) |
 		((x & 0x00ff0000UL) >>  8) |
 		((x & 0xff000000UL) >> 24);
 }
 #else
 /* not windows */
 # include <sys/types.h>
 # if defined __BEOS__ && !defined __HAIKU__
 #  include <ByteOrder.h>
 # else
 #  include <arpa/inet.h>
 # endif
 # include <inttypes.h>
 #endif
 
 static PyObject *parse_dirstate(PyObject *self, PyObject *args)
 {
 	PyObject *dmap, *cmap, *parents = NULL, *ret = NULL;
 	PyObject *fname = NULL, *cname = NULL, *entry = NULL;
 	char *str, *cur, *end, *cpos;
 	int state, mode, size, mtime, flen;
 	int len;
 	char decode[16]; /* for alignment */
 
 	if (!PyArg_ParseTuple(args, "O!O!s#:parse_dirstate",
 			      &PyDict_Type, &dmap,
 			      &PyDict_Type, &cmap,
 			      &str, &len))
 		goto quit;
 
 	/* read parents */
 	if (len < 40)
 		goto quit;
 
 	parents = Py_BuildValue("s#s#", str, 20, str + 20, 20);
 	if (!parents)
 		goto quit;
 
 	/* read filenames */
 	cur = str + 40;
 	end = str + len;
 
 	while (cur < end - 17) {
 		/* unpack header */
 		state = *cur;
 		memcpy(decode, cur + 1, 16);
 		mode = ntohl(*(uint32_t *)(decode));
 		size = ntohl(*(uint32_t *)(decode + 4));
 		mtime = ntohl(*(uint32_t *)(decode + 8));
 		flen = ntohl(*(uint32_t *)(decode + 12));
 		cur += 17;
 		if (cur + flen > end)
 			goto quit;
 
 		entry = Py_BuildValue("ciii", state, mode, size, mtime);
 		PyObject_GC_UnTrack(entry); /* don't waste time with this */
 		if (!entry)
 			goto quit;
 
 		cpos = memchr(cur, 0, flen);
 		if (cpos) {
 			fname = PyString_FromStringAndSize(cur, cpos - cur);
 			cname = PyString_FromStringAndSize(cpos + 1,
 							   flen - (cpos - cur) - 1);
 			if (!fname || !cname ||
 			    PyDict_SetItem(cmap, fname, cname) == -1 ||
 			    PyDict_SetItem(dmap, fname, entry) == -1)
 				goto quit;
 			Py_DECREF(cname);
 		} else {
 			fname = PyString_FromStringAndSize(cur, flen);
 			if (!fname ||
 			    PyDict_SetItem(dmap, fname, entry) == -1)
 				goto quit;
 		}
 		cur += flen;
 		Py_DECREF(fname);
 		Py_DECREF(entry);
 		fname = cname = entry = NULL;
 	}
 
 	ret = parents;
 	Py_INCREF(ret);
 quit:
 	Py_XDECREF(fname);
 	Py_XDECREF(cname);
 	Py_XDECREF(entry);
 	Py_XDECREF(parents);
 	return ret;
 }
 
 const char nullid[20];
 const int nullrev = -1;
 
 /* RevlogNG format (all in big endian, data may be inlined):
  *    6 bytes: offset
  *    2 bytes: flags
  *    4 bytes: compressed length
  *    4 bytes: uncompressed length
  *    4 bytes: base revision
  *    4 bytes: link revision
  *    4 bytes: parent 1 revision
  *    4 bytes: parent 2 revision
  *   32 bytes: nodeid (only 20 bytes used)
  */
 static int _parse_index_ng (const char *data, int size, int inlined,
 			    PyObject *index, PyObject *nodemap)
 {
 	PyObject *entry = NULL, *node_id = NULL, *n_obj = NULL;
 	PyObject *nullrev_obj = NULL, *nullid_obj = NULL;
 	int comp_len, uncomp_len, base_rev, link_rev, parent_1, parent_2;
 	uint64_t offset_flags;
 	int n = 0;
 	const char *end = data + size;
 
 	while (data < end) {
                 offset_flags = ntohl(*((uint32_t *) (data + 4)));
                 if (n == 0) /* mask out version number for the first entry */
                         offset_flags &= 0xFFFF;
                 else {
 			uint32_t offset_high =  ntohl(*((uint32_t *) data));
                         offset_flags |= ((uint64_t) offset_high) << 32;
 		}
 
 
 		comp_len = ntohl(*((uint32_t *) (data + 8)));
 		uncomp_len = ntohl(*((uint32_t *) (data + 12)));
 		base_rev = ntohl(*((uint32_t *) (data + 16)));
 		link_rev = ntohl(*((uint32_t *) (data + 20)));
 		parent_1 = ntohl(*((uint32_t *) (data + 24)));
 		parent_2 = ntohl(*((uint32_t *) (data + 28)));
 		node_id = PyString_FromStringAndSize(data + 32, 20);
 		n_obj = PyInt_FromLong(n);
 		if (!node_id || !n_obj ||
 		    PyDict_SetItem(nodemap, node_id, n_obj) != 0)
 			goto quit;
 		Py_DECREF(n_obj);
 		
 		entry = Py_BuildValue("LiiiiiiN", offset_flags, comp_len,
 				      uncomp_len, base_rev, link_rev,
 				      parent_1, parent_2, node_id);
 		PyObject_GC_UnTrack(entry); /* don't waste time with this */
 		if (!entry)
 			goto quit;
 
 		/* append to or set value in the index list */
 		if (inlined) {
 			if (PyList_Append(index, entry) != 0)
 				goto quit;
 			Py_DECREF(entry);
 		} else {
 			PyList_SET_ITEM(index, n, entry); /* steals reference */
 		}
 
 		data += 64 + (inlined ? comp_len : 0);
 		n++;
 	}
 	if (data > end) {
 		if (!PyErr_Occurred())
 			PyErr_SetString(PyExc_ValueError, "corrupt index file");
 		goto quit;
 	}
 
 	/* create the nullid/nullrev entry in the nodemap and the 
 	 * magic nullid entry in the index at [-1] */
 	nullid_obj = PyString_FromStringAndSize(nullid, 20);
 	nullrev_obj = PyInt_FromLong(nullrev);
 	if (!nodemap || !nullid_obj || !nullrev_obj ||
 	    PyDict_SetItem(nodemap, nullid_obj, nullrev_obj) != 0)
 		goto quit;
 	Py_DECREF(nullrev_obj);
 		
 	entry = Py_BuildValue("iiiiiiiN", 0, 0, 0, -1, -1, -1, -1, nullid_obj);
 	PyObject_GC_UnTrack(entry); /* don't waste time with this */
 	if (!entry)
 		goto quit;
 	if (inlined) {
 		if (PyList_Append(index, entry) != 0)
 			goto quit;
 		Py_DECREF(entry);
 	} else {
 		PyList_SET_ITEM(index, n, entry); /* steals reference */
 	}
 
 	return 1;
 
 quit:
 	Py_XDECREF(n_obj);
 	Py_XDECREF(node_id);
 	Py_XDECREF(entry);
 	Py_XDECREF(nullrev_obj);
 	Py_XDECREF(nullid_obj);
 	return 0;
 }
 
 
 
 /* This function parses a index file and returns a Python tuple of the
  * following format: (index, nodemap, cache)
  *
  * index: a list of tuples containing the RevlogNG records
  * nodemap: a dict mapping node ids to indices in the index list
  * cache: if data is inlined, a tuple (index_file_content, 0) else None
  */
 static PyObject *parse_index(PyObject *self, PyObject *args)
 {
 	const char *data;
 	int size, inlined;
 	PyObject *rval = NULL, *index = NULL, *nodemap = NULL, *cache = NULL; 
 	PyObject *data_obj = NULL, *inlined_obj;
 
 	if (!PyArg_ParseTuple(args, "s#O", &data, &size, &inlined_obj))
 		return NULL;
 	inlined = inlined_obj && PyObject_IsTrue(inlined_obj);
 
 	/* If no data is inlined, we know the size of the index list in 
 	 * advance: size divided by size of one one revlog record (64 bytes) 
 	 * plus one for the nullid */  
 	index = inlined ? PyList_New(0) : PyList_New(size / 64 + 1);
 	if (!index)
 		goto quit;
 
 	nodemap = PyDict_New();
 
 	/* set up the cache return value */
 	if (inlined) {
 		/* Note that the reference to data_obj is only borrowed */
 		data_obj = PyTuple_GET_ITEM(args, 0);
 		cache = Py_BuildValue("iO", 0, data_obj);
 		if (!cache)
 			goto quit;
 	} else {
 		cache = Py_None;
 		Py_INCREF(Py_None);
 	}
 
 	/* actually populate the index and the nodemap with data */
 	if (!_parse_index_ng (data, size, inlined, index, nodemap))
 		goto quit;
 
 	rval = Py_BuildValue("NNN", index, nodemap, cache);
 	if (!rval)
 		goto quit;
 	return rval;
 
 quit:
 	Py_XDECREF(index);
 	Py_XDECREF(nodemap);
 	Py_XDECREF(cache);
 	Py_XDECREF(rval);
 	Py_XDECREF(data_obj);
 	return NULL;
 }
 
 
 static char parsers_doc[] = "Efficient content parsing.";
 
 static PyMethodDef methods[] = {
 	{"parse_manifest", parse_manifest, METH_VARARGS, "parse a manifest\n"},
 	{"parse_dirstate", parse_dirstate, METH_VARARGS, "parse a dirstate\n"},
 	{"parse_index", parse_index, METH_VARARGS, "parse a revlog index\n"},
 	{NULL, NULL}
 };
 
 PyMODINIT_FUNC initparsers(void)
 {
 	Py_InitModule3("parsers", methods, parsers_doc);
 }

mercurial/util.py

@@ -1,1939 +1,1943
 """
 util.py - Mercurial utility functions and platform specfic implementations
 
  Copyright 2005 K. Thananchayan <[e-mail]>
  Copyright 2005-2007 Matt Mackall <[e-mail]>
  Copyright 2006 Vadim Gelfer <[e-mail]>
 
 This software may be used and distributed according to the terms
 of the GNU General Public License, incorporated herein by reference.
 
 This contains helper routines that are independent of the SCM core and hide
 platform-specific details from the core.
 """
 
 from i18n import _
 import cStringIO, errno, getpass, re, shutil, sys, tempfile
 import os, stat, threading, time, calendar, ConfigParser, locale, glob, osutil
 import imp, urlparse
 
 # Python compatibility
 
 try:
     set = set
     frozenset = frozenset
 except NameError:
     from sets import Set as set, ImmutableSet as frozenset
 
 _md5 = None
 def md5(s):
     global _md5
     if _md5 is None:
         try:
             import hashlib
             _md5 = hashlib.md5
         except ImportError:
             import md5
             _md5 = md5.md5
     return _md5(s)
 
 _sha1 = None
 def sha1(s):
     global _sha1
     if _sha1 is None:
         try:
             import hashlib
             _sha1 = hashlib.sha1
         except ImportError:
             import sha
             _sha1 = sha.sha
     return _sha1(s)
 
 try:
     import subprocess
+    closefds = os.name == 'posix'
     def popen2(cmd, mode='t', bufsize=-1):
-        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
+        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize,
+                             close_fds=closefds,
                              stdin=subprocess.PIPE, stdout=subprocess.PIPE)
         return p.stdin, p.stdout
     def popen3(cmd, mode='t', bufsize=-1):
-        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
+        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize,
+                             close_fds=closefds,
                              stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                              stderr=subprocess.PIPE)
         return p.stdin, p.stdout, p.stderr
     def Popen3(cmd, capturestderr=False, bufsize=-1):
         stderr = capturestderr and subprocess.PIPE or None
-        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
+        p = subprocess.Popen(cmd, shell=True, bufsize=bufsize,
+                             close_fds=closefds,
                              stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                              stderr=stderr)
         p.fromchild = p.stdout
         p.tochild = p.stdin
         p.childerr = p.stderr
         return p
 except ImportError:
     subprocess = None
     import popen2 as _popen2
     popen2 = _popen2.popen2
     Popen3 = _popen2.Popen3
 
 
 try:
     _encoding = os.environ.get("HGENCODING")
     if sys.platform == 'darwin' and not _encoding:
         # On darwin, getpreferredencoding ignores the locale environment and
         # always returns mac-roman. We override this if the environment is
         # not C (has been customized by the user).
         locale.setlocale(locale.LC_CTYPE, '')
         _encoding = locale.getlocale()[1]
     if not _encoding:
         _encoding = locale.getpreferredencoding() or 'ascii'
 except locale.Error:
     _encoding = 'ascii'
 _encodingmode = os.environ.get("HGENCODINGMODE", "strict")
 _fallbackencoding = 'ISO-8859-1'
 
 def tolocal(s):
     """
     Convert a string from internal UTF-8 to local encoding
 
     All internal strings should be UTF-8 but some repos before the
     implementation of locale support may contain latin1 or possibly
     other character sets. We attempt to decode everything strictly
     using UTF-8, then Latin-1, and failing that, we use UTF-8 and
     replace unknown characters.
     """
     for e in ('UTF-8', _fallbackencoding):
         try:
             u = s.decode(e) # attempt strict decoding
             return u.encode(_encoding, "replace")
         except LookupError, k:
             raise Abort(_("%s, please check your locale settings") % k)
         except UnicodeDecodeError:
             pass
     u = s.decode("utf-8", "replace") # last ditch
     return u.encode(_encoding, "replace")
 
 def fromlocal(s):
     """
     Convert a string from the local character encoding to UTF-8
 
     We attempt to decode strings using the encoding mode set by
     HGENCODINGMODE, which defaults to 'strict'. In this mode, unknown
     characters will cause an error message. Other modes include
     'replace', which replaces unknown characters with a special
     Unicode character, and 'ignore', which drops the character.
     """
     try:
         return s.decode(_encoding, _encodingmode).encode("utf-8")
     except UnicodeDecodeError, inst:
         sub = s[max(0, inst.start-10):inst.start+10]
         raise Abort("decoding near '%s': %s!" % (sub, inst))
     except LookupError, k:
         raise Abort(_("%s, please check your locale settings") % k)
 
 def locallen(s):
     """Find the length in characters of a local string"""
     return len(s.decode(_encoding, "replace"))
 
 # used by parsedate
 defaultdateformats = (
     '%Y-%m-%d %H:%M:%S',
     '%Y-%m-%d %I:%M:%S%p',
     '%Y-%m-%d %H:%M',
     '%Y-%m-%d %I:%M%p',
     '%Y-%m-%d',
     '%m-%d',
     '%m/%d',
     '%m/%d/%y',
     '%m/%d/%Y',
     '%a %b %d %H:%M:%S %Y',
     '%a %b %d %I:%M:%S%p %Y',
     '%a, %d %b %Y %H:%M:%S',        #  GNU coreutils "/bin/date --rfc-2822"
     '%b %d %H:%M:%S %Y',
     '%b %d %I:%M:%S%p %Y',
     '%b %d %H:%M:%S',
     '%b %d %I:%M:%S%p',
     '%b %d %H:%M',
     '%b %d %I:%M%p',
     '%b %d %Y',
     '%b %d',
     '%H:%M:%S',
     '%I:%M:%SP',
     '%H:%M',
     '%I:%M%p',
 )
 
 extendeddateformats = defaultdateformats + (
     "%Y",
     "%Y-%m",
     "%b",
     "%b %Y",
     )
 
 class SignalInterrupt(Exception):
     """Exception raised on SIGTERM and SIGHUP."""
 
 # differences from SafeConfigParser:
 # - case-sensitive keys
 # - allows values that are not strings (this means that you may not
 #   be able to save the configuration to a file)
 class configparser(ConfigParser.SafeConfigParser):
     def optionxform(self, optionstr):
         return optionstr
 
     def set(self, section, option, value):
         return ConfigParser.ConfigParser.set(self, section, option, value)
 
     def _interpolate(self, section, option, rawval, vars):
         if not isinstance(rawval, basestring):
             return rawval
         return ConfigParser.SafeConfigParser._interpolate(self, section,
                                                           option, rawval, vars)
 
 def cachefunc(func):
     '''cache the result of function calls'''
     # XXX doesn't handle keywords args
     cache = {}
     if func.func_code.co_argcount == 1:
         # we gain a small amount of time because
         # we don't need to pack/unpack the list
         def f(arg):
             if arg not in cache:
                 cache[arg] = func(arg)
             return cache[arg]
     else:
         def f(*args):
             if args not in cache:
                 cache[args] = func(*args)
             return cache[args]
 
     return f
 
 def pipefilter(s, cmd):
     '''filter string S through command CMD, returning its output'''
     (pin, pout) = popen2(cmd, 'b')
     def writer():
         try:
             pin.write(s)
             pin.close()
         except IOError, inst:
             if inst.errno != errno.EPIPE:
                 raise
 
     # we should use select instead on UNIX, but this will work on most
     # systems, including Windows
     w = threading.Thread(target=writer)
     w.start()
     f = pout.read()
     pout.close()
     w.join()
     return f
 
 def tempfilter(s, cmd):
     '''filter string S through a pair of temporary files with CMD.
     CMD is used as a template to create the real command to be run,
     with the strings INFILE and OUTFILE replaced by the real names of
     the temporary files generated.'''
     inname, outname = None, None
     try:
         infd, inname = tempfile.mkstemp(prefix='hg-filter-in-')
         fp = os.fdopen(infd, 'wb')
         fp.write(s)
         fp.close()
         outfd, outname = tempfile.mkstemp(prefix='hg-filter-out-')
         os.close(outfd)
         cmd = cmd.replace('INFILE', inname)
         cmd = cmd.replace('OUTFILE', outname)
         code = os.system(cmd)
         if sys.platform == 'OpenVMS' and code & 1:
             code = 0
         if code: raise Abort(_("command '%s' failed: %s") %
                              (cmd, explain_exit(code)))
         return open(outname, 'rb').read()
     finally:
         try:
             if inname: os.unlink(inname)
         except: pass
         try:
             if outname: os.unlink(outname)
         except: pass
 
 filtertable = {
     'tempfile:': tempfilter,
     'pipe:': pipefilter,
     }
 
 def filter(s, cmd):
     "filter a string through a command that transforms its input to its output"
     for name, fn in filtertable.iteritems():
         if cmd.startswith(name):
             return fn(s, cmd[len(name):].lstrip())
     return pipefilter(s, cmd)
 
 def binary(s):
     """return true if a string is binary data"""
     if s and '\0' in s:
         return True
     return False
 
 def unique(g):
     """return the uniq elements of iterable g"""
     return dict.fromkeys(g).keys()
 
 def sort(l):
     if not isinstance(l, list):
         l = list(l)
     l.sort()
     return l
 
 class Abort(Exception):
     """Raised if a command needs to print an error and exit."""
 
 class UnexpectedOutput(Abort):
     """Raised to print an error with part of output and exit."""
 
 def always(fn): return True
 def never(fn): return False
 
 def expand_glob(pats):
     '''On Windows, expand the implicit globs in a list of patterns'''
     if os.name != 'nt':
         return list(pats)
     ret = []
     for p in pats:
         kind, name = patkind(p, None)
         if kind is None:
             globbed = glob.glob(name)
             if globbed:
                 ret.extend(globbed)
                 continue
             # if we couldn't expand the glob, just keep it around
         ret.append(p)
     return ret
 
 def patkind(name, default):
     """Split a string into an optional pattern kind prefix and the
     actual pattern."""
     for prefix in 're', 'glob', 'path', 'relglob', 'relpath', 'relre':
         if name.startswith(prefix + ':'): return name.split(':', 1)
     return default, name
 
 def globre(pat, head='^', tail='$'):
     "convert a glob pattern into a regexp"
     i, n = 0, len(pat)
     res = ''
     group = 0
     def peek(): return i < n and pat[i]
     while i < n:
         c = pat[i]
         i = i+1
         if c == '*':
             if peek() == '*':
                 i += 1
                 res += '.*'
             else:
                 res += '[^/]*'
         elif c == '?':
             res += '.'
         elif c == '[':
             j = i
             if j < n and pat[j] in '!]':
                 j += 1
             while j < n and pat[j] != ']':
                 j += 1
             if j >= n:
                 res += '\\['
             else:
                 stuff = pat[i:j].replace('\\','\\\\')
                 i = j + 1
                 if stuff[0] == '!':
                     stuff = '^' + stuff[1:]
                 elif stuff[0] == '^':
                     stuff = '\\' + stuff
                 res = '%s[%s]' % (res, stuff)
         elif c == '{':
             group += 1
             res += '(?:'
         elif c == '}' and group:
             res += ')'
             group -= 1
         elif c == ',' and group:
             res += '|'
         elif c == '\\':
             p = peek()
             if p:
                 i += 1
                 res += re.escape(p)
             else:
                 res += re.escape(c)
         else:
             res += re.escape(c)
     return head + res + tail
 
 _globchars = {'[': 1, '{': 1, '*': 1, '?': 1}
 
 def pathto(root, n1, n2):
     '''return the relative path from one place to another.
     root should use os.sep to separate directories
     n1 should use os.sep to separate directories
     n2 should use "/" to separate directories
     returns an os.sep-separated path.
 
     If n1 is a relative path, it's assumed it's
     relative to root.
     n2 should always be relative to root.
     '''
     if not n1: return localpath(n2)
     if os.path.isabs(n1):
         if os.path.splitdrive(root)[0] != os.path.splitdrive(n1)[0]:
             return os.path.join(root, localpath(n2))
         n2 = '/'.join((pconvert(root), n2))
     a, b = splitpath(n1), n2.split('/')
     a.reverse()
     b.reverse()
     while a and b and a[-1] == b[-1]:
         a.pop()
         b.pop()
     b.reverse()
     return os.sep.join((['..'] * len(a)) + b) or '.'
 
 def canonpath(root, cwd, myname):
     """return the canonical path of myname, given cwd and root"""
     if root == os.sep:
         rootsep = os.sep
     elif endswithsep(root):
         rootsep = root
     else:
         rootsep = root + os.sep
     name = myname
     if not os.path.isabs(name):
         name = os.path.join(root, cwd, name)
     name = os.path.normpath(name)
     audit_path = path_auditor(root)
     if name != rootsep and name.startswith(rootsep):
         name = name[len(rootsep):]
         audit_path(name)
         return pconvert(name)
     elif name == root:
         return ''
     else:
         # Determine whether `name' is in the hierarchy at or beneath `root',
         # by iterating name=dirname(name) until that causes no change (can't
         # check name == '/', because that doesn't work on windows).  For each
         # `name', compare dev/inode numbers.  If they match, the list `rel'
         # holds the reversed list of components making up the relative file
         # name we want.
         root_st = os.stat(root)
         rel = []
         while True:
             try:
                 name_st = os.stat(name)
             except OSError:
                 break
             if samestat(name_st, root_st):
                 if not rel:
                     # name was actually the same as root (maybe a symlink)
                     return ''
                 rel.reverse()
                 name = os.path.join(*rel)
                 audit_path(name)
                 return pconvert(name)
             dirname, basename = os.path.split(name)
             rel.append(basename)
             if dirname == name:
                 break
             name = dirname
 
         raise Abort('%s not under root' % myname)
 
 def matcher(canonroot, cwd='', names=[], inc=[], exc=[], src=None, dflt_pat='glob'):
     """build a function to match a set of file patterns
 
     arguments:
     canonroot - the canonical root of the tree you're matching against
     cwd - the current working directory, if relevant
     names - patterns to find
     inc - patterns to include
     exc - patterns to exclude
     dflt_pat - if a pattern in names has no explicit type, assume this one
     src - where these patterns came from (e.g. .hgignore)
 
     a pattern is one of:
     'glob:<glob>' - a glob relative to cwd
     're:<regexp>' - a regular expression
     'path:<path>' - a path relative to canonroot
     'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs)
     'relpath:<path>' - a path relative to cwd
     'relre:<regexp>' - a regexp that doesn't have to match the start of a name
     '<something>' - one of the cases above, selected by the dflt_pat argument
 
     returns:
     a 3-tuple containing
     - list of roots (places where one should start a recursive walk of the fs);
       this often matches the explicit non-pattern names passed in, but also
       includes the initial part of glob: patterns that has no glob characters
     - a bool match(filename) function
     - a bool indicating if any patterns were passed in
     """
 
     # a common case: no patterns at all
     if not names and not inc and not exc:
         return [], always, False
 
     def contains_glob(name):
         for c in name:
             if c in _globchars: return True
         return False
 
     def regex(kind, name, tail):
         '''convert a pattern into a regular expression'''
         if not name:
             return ''
         if kind == 're':
             return name
         elif kind == 'path':
             return '^' + re.escape(name) + '(?:/|$)'
         elif kind == 'relglob':
             return globre(name, '(?:|.*/)', tail)
         elif kind == 'relpath':
             return re.escape(name) + '(?:/|$)'
         elif kind == 'relre':
             if name.startswith('^'):
                 return name
             return '.*' + name
         return globre(name, '', tail)
 
     def matchfn(pats, tail):
         """build a matching function from a set of patterns"""
         if not pats:
             return
         try:
             pat = '(?:%s)' % '|'.join([regex(k, p, tail) for (k, p) in pats])
             if len(pat) > 20000:
                 raise OverflowError()
             return re.compile(pat).match
         except OverflowError:
             # We're using a Python with a tiny regex engine and we
             # made it explode, so we'll divide the pattern list in two
             # until it works
             l = len(pats)
             if l < 2:
                 raise
             a, b = matchfn(pats[:l//2], tail), matchfn(pats[l//2:], tail)
             return lambda s: a(s) or b(s)
         except re.error:
             for k, p in pats:
                 try:
                     re.compile('(?:%s)' % regex(k, p, tail))
                 except re.error:
                     if src:
                         raise Abort("%s: invalid pattern (%s): %s" %
                                     (src, k, p))
                     else:
                         raise Abort("invalid pattern (%s): %s" % (k, p))
             raise Abort("invalid pattern")
 
     def globprefix(pat):
         '''return the non-glob prefix of a path, e.g. foo/* -> foo'''
         root = []
         for p in pat.split('/'):
             if contains_glob(p): break
             root.append(p)
         return '/'.join(root) or '.'
 
     def normalizepats(names, default):
         pats = []
         roots = []
         anypats = False
         for kind, name in [patkind(p, default) for p in names]:
             if kind in ('glob', 'relpath'):
                 name = canonpath(canonroot, cwd, name)
             elif kind in ('relglob', 'path'):
                 name = normpath(name)
 
             pats.append((kind, name))
 
             if kind in ('glob', 're', 'relglob', 'relre'):
                 anypats = True
 
             if kind == 'glob':
                 root = globprefix(name)
                 roots.append(root)
             elif kind in ('relpath', 'path'):
                 roots.append(name or '.')
             elif kind == 'relglob':
                 roots.append('.')
         return roots, pats, anypats
 
     roots, pats, anypats = normalizepats(names, dflt_pat)
 
     patmatch = matchfn(pats, '$') or always
     incmatch = always
     if inc:
         dummy, inckinds, dummy = normalizepats(inc, 'glob')
         incmatch = matchfn(inckinds, '(?:/|$)')
     excmatch = lambda fn: False
     if exc:
         dummy, exckinds, dummy = normalizepats(exc, 'glob')
         excmatch = matchfn(exckinds, '(?:/|$)')
 
     if not names and inc and not exc:
         # common case: hgignore patterns
         match = incmatch
     else:
         match = lambda fn: incmatch(fn) and not excmatch(fn) and patmatch(fn)
 
     return (roots, match, (inc or exc or anypats) and True)
 
 _hgexecutable = None
 
 def main_is_frozen():
     """return True if we are a frozen executable.
 
     The code supports py2exe (most common, Windows only) and tools/freeze
     (portable, not much used).
     """
     return (hasattr(sys, "frozen") or # new py2exe
             hasattr(sys, "importers") or # old py2exe
             imp.is_frozen("__main__")) # tools/freeze
 
 def hgexecutable():
     """return location of the 'hg' executable.
 
     Defaults to $HG or 'hg' in the search path.
     """
     if _hgexecutable is None:
         hg = os.environ.get('HG')
         if hg:
             set_hgexecutable(hg)
         elif main_is_frozen():
             set_hgexecutable(sys.executable)
         else:
             set_hgexecutable(find_exe('hg', 'hg'))
     return _hgexecutable
 
 def set_hgexecutable(path):
     """set location of the 'hg' executable"""
     global _hgexecutable
     _hgexecutable = path
 
 def system(cmd, environ={}, cwd=None, onerr=None, errprefix=None):
     '''enhanced shell command execution.
     run with environment maybe modified, maybe in different dir.
 
     if command fails and onerr is None, return status.  if ui object,
     print error message and return status, else raise onerr object as
     exception.'''
     def py2shell(val):
         'convert python object into string that is useful to shell'
         if val in (None, False):
             return '0'
         if val == True:
             return '1'
         return str(val)
     oldenv = {}
     for k in environ:
         oldenv[k] = os.environ.get(k)
     if cwd is not None:
         oldcwd = os.getcwd()
     origcmd = cmd
     if os.name == 'nt':
         cmd = '"%s"' % cmd
     try:
         for k, v in environ.iteritems():
             os.environ[k] = py2shell(v)
         os.environ['HG'] = hgexecutable()
         if cwd is not None and oldcwd != cwd:
             os.chdir(cwd)
         rc = os.system(cmd)
         if sys.platform == 'OpenVMS' and rc & 1:
             rc = 0
         if rc and onerr:
             errmsg = '%s %s' % (os.path.basename(origcmd.split(None, 1)[0]),
                                 explain_exit(rc)[0])
             if errprefix:
                 errmsg = '%s: %s' % (errprefix, errmsg)
             try:
                 onerr.warn(errmsg + '\n')
             except AttributeError:
                 raise onerr(errmsg)
         return rc
     finally:
         for k, v in oldenv.iteritems():
             if v is None:
                 del os.environ[k]
             else:
                 os.environ[k] = v
         if cwd is not None and oldcwd != cwd:
             os.chdir(oldcwd)
 
 # os.path.lexists is not available on python2.3
 def lexists(filename):
     "test whether a file with this name exists. does not follow symlinks"
     try:
         os.lstat(filename)
     except:
         return False
     return True
 
 def rename(src, dst):
     """forcibly rename a file"""
     try:
         os.rename(src, dst)
     except OSError, err: # FIXME: check err (EEXIST ?)
         # on windows, rename to existing file is not allowed, so we
         # must delete destination first. but if file is open, unlink
         # schedules it for delete but does not delete it. rename
         # happens immediately even for open files, so we create
         # temporary file, delete it, rename destination to that name,
         # then delete that. then rename is safe to do.
         fd, temp = tempfile.mkstemp(dir=os.path.dirname(dst) or '.')
         os.close(fd)
         os.unlink(temp)
         os.rename(dst, temp)
         os.unlink(temp)
         os.rename(src, dst)
 
 def unlink(f):
     """unlink and remove the directory if it is empty"""
     os.unlink(f)
     # try removing directories that might now be empty
     try:
         os.removedirs(os.path.dirname(f))
     except OSError:
         pass
 
 def copyfile(src, dest):
     "copy a file, preserving mode"
     if os.path.islink(src):
         try:
             os.unlink(dest)
         except:
             pass
         os.symlink(os.readlink(src), dest)
     else:
         try:
             shutil.copyfile(src, dest)
             shutil.copymode(src, dest)
         except shutil.Error, inst:
             raise Abort(str(inst))
 
 def copyfiles(src, dst, hardlink=None):
     """Copy a directory tree using hardlinks if possible"""
 
     if hardlink is None:
         hardlink = (os.stat(src).st_dev ==
                     os.stat(os.path.dirname(dst)).st_dev)
 
     if os.path.isdir(src):
         os.mkdir(dst)
         for name, kind in osutil.listdir(src):
             srcname = os.path.join(src, name)
             dstname = os.path.join(dst, name)
             copyfiles(srcname, dstname, hardlink)
     else:
         if hardlink:
             try:
                 os_link(src, dst)
             except (IOError, OSError):
                 hardlink = False
                 shutil.copy(src, dst)
         else:
             shutil.copy(src, dst)
 
 class path_auditor(object):
     '''ensure that a filesystem path contains no banned components.
     the following properties of a path are checked:
 
     - under top-level .hg
     - starts at the root of a windows drive
     - contains ".."
     - traverses a symlink (e.g. a/symlink_here/b)
     - inside a nested repository'''
 
     def __init__(self, root):
         self.audited = set()
         self.auditeddir = set()
         self.root = root
 
     def __call__(self, path):
         if path in self.audited:
             return
         normpath = os.path.normcase(path)
         parts = splitpath(normpath)
         if (os.path.splitdrive(path)[0] or parts[0] in ('.hg', '')
             or os.pardir in parts):
             raise Abort(_("path contains illegal component: %s") % path)
         def check(prefix):
             curpath = os.path.join(self.root, prefix)
             try:
                 st = os.lstat(curpath)
             except OSError, err:
                 # EINVAL can be raised as invalid path syntax under win32.
                 # They must be ignored for patterns can be checked too.
                 if err.errno not in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
                     raise
             else:
                 if stat.S_ISLNK(st.st_mode):
                     raise Abort(_('path %r traverses symbolic link %r') %
                                 (path, prefix))
                 elif (stat.S_ISDIR(st.st_mode) and
                       os.path.isdir(os.path.join(curpath, '.hg'))):
                     raise Abort(_('path %r is inside repo %r') %
                                 (path, prefix))
         parts.pop()
         prefixes = []
         for n in range(len(parts)):
             prefix = os.sep.join(parts)
             if prefix in self.auditeddir:
                 break
             check(prefix)
             prefixes.append(prefix)
             parts.pop()
 
         self.audited.add(path)
         # only add prefixes to the cache after checking everything: we don't
         # want to add "foo/bar/baz" before checking if there's a "foo/.hg"
         self.auditeddir.update(prefixes)
 
 def _makelock_file(info, pathname):
     ld = os.open(pathname, os.O_CREAT | os.O_WRONLY | os.O_EXCL)
     os.write(ld, info)
     os.close(ld)
 
 def _readlock_file(pathname):
     return posixfile(pathname).read()
 
 def nlinks(pathname):
     """Return number of hardlinks for the given file."""
     return os.lstat(pathname).st_nlink
 
 if hasattr(os, 'link'):
     os_link = os.link
 else:
     def os_link(src, dst):
         raise OSError(0, _("Hardlinks not supported"))
 
 def fstat(fp):
     '''stat file object that may not have fileno method.'''
     try:
         return os.fstat(fp.fileno())
     except AttributeError:
         return os.stat(fp.name)
 
 posixfile = file
 
 def openhardlinks():
     '''return true if it is safe to hold open file handles to hardlinks'''
     return True
 
 def _statfiles(files):
     'Stat each file in files and yield stat or None if file does not exist.'
     lstat = os.lstat
     for nf in files:
         try:
             st = lstat(nf)
         except OSError, err:
             if err.errno not in (errno.ENOENT, errno.ENOTDIR):
                 raise
             st = None
         yield st
 
 def _statfiles_clustered(files):
     '''Stat each file in files and yield stat or None if file does not exist.
     Cluster and cache stat per directory to minimize number of OS stat calls.'''
     lstat = os.lstat
     ncase = os.path.normcase
     sep   = os.sep
     dircache = {} # dirname -> filename -> status | None if file does not exist
     for nf in files:
         nf  = ncase(nf)
         pos = nf.rfind(sep)
         if pos == -1:
             dir, base = '.', nf
         else:
             dir, base = nf[:pos], nf[pos+1:]
         cache = dircache.get(dir, None)
         if cache is None:
             try:
                 dmap = dict([(ncase(n), s)
                     for n, k, s in osutil.listdir(dir, True)])
             except OSError, err:
                 # handle directory not found in Python version prior to 2.5
                 # Python <= 2.4 returns native Windows code 3 in errno
                 # Python >= 2.5 returns ENOENT and adds winerror field
                 if err.errno not in (3, errno.ENOENT, errno.ENOTDIR):
                     raise
                 dmap = {}
             cache = dircache.setdefault(dir, dmap)
         yield cache.get(base, None)
 
 if sys.platform == 'win32':
     statfiles = _statfiles_clustered
 else:
     statfiles = _statfiles
 
 getuser_fallback = None
 
 def getuser():
     '''return name of current user'''
     try:
         return getpass.getuser()
     except ImportError:
         # import of pwd will fail on windows - try fallback
         if getuser_fallback:
             return getuser_fallback()
     # raised if win32api not available
     raise Abort(_('user name not available - set USERNAME '
                   'environment variable'))
 
 def username(uid=None):
     """Return the name of the user with the given uid.
 
     If uid is None, return the name of the current user."""
     try:
         import pwd
         if uid is None:
             uid = os.getuid()
         try:
             return pwd.getpwuid(uid)[0]
         except KeyError:
             return str(uid)
     except ImportError:
         return None
 
 def groupname(gid=None):
     """Return the name of the group with the given gid.
 
     If gid is None, return the name of the current group."""
     try:
         import grp
         if gid is None:
             gid = os.getgid()
         try:
             return grp.getgrgid(gid)[0]
         except KeyError:
             return str(gid)
     except ImportError:
         return None
 
 # File system features
 
 def checkcase(path):
     """
     Check whether the given path is on a case-sensitive filesystem
 
     Requires a path (like /foo/.hg) ending with a foldable final
     directory component.
     """
     s1 = os.stat(path)
     d, b = os.path.split(path)
     p2 = os.path.join(d, b.upper())
     if path == p2:
         p2 = os.path.join(d, b.lower())
     try:
         s2 = os.stat(p2)
         if s2 == s1:
             return False
         return True
     except:
         return True
 
 _fspathcache = {}
 def fspath(name, root):
     '''Get name in the case stored in the filesystem
 
     The name is either relative to root, or it is an absolute path starting
     with root. Note that this function is unnecessary, and should not be
     called, for case-sensitive filesystems (simply because it's expensive).
     '''
     # If name is absolute, make it relative
     if name.lower().startswith(root.lower()):
         l = len(root)
         if name[l] == os.sep or name[l] == os.altsep:
             l = l + 1
         name = name[l:]
 
     if not os.path.exists(os.path.join(root, name)):
         return None
 
     seps = os.sep
     if os.altsep:
         seps = seps + os.altsep
     # Protect backslashes. This gets silly very quickly.
     seps.replace('\\','\\\\')
     pattern = re.compile(r'([^%s]+)|([%s]+)' % (seps, seps))
     dir = os.path.normcase(os.path.normpath(root))
     result = []
     for part, sep in pattern.findall(name):
         if sep:
             result.append(sep)
             continue
 
         if dir not in _fspathcache:
             _fspathcache[dir] = os.listdir(dir)
         contents = _fspathcache[dir]
 
         lpart = part.lower()
         for n in contents:
             if n.lower() == lpart:
                 result.append(n)
                 break
         else:
             # Cannot happen, as the file exists!
             result.append(part)
         dir = os.path.join(dir, lpart)
 
     return ''.join(result)
 
 def checkexec(path):
     """
     Check whether the given path is on a filesystem with UNIX-like exec flags
 
     Requires a directory (like /foo/.hg)
     """
 
     # VFAT on some Linux versions can flip mode but it doesn't persist
     # a FS remount. Frequently we can detect it if files are created
     # with exec bit on.
 
     try:
         EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
         fh, fn = tempfile.mkstemp("", "", path)
         try:
             os.close(fh)
             m = os.stat(fn).st_mode & 0777
             new_file_has_exec = m & EXECFLAGS
             os.chmod(fn, m ^ EXECFLAGS)
             exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m)
         finally:
             os.unlink(fn)
     except (IOError, OSError):
         # we don't care, the user probably won't be able to commit anyway
         return False
     return not (new_file_has_exec or exec_flags_cannot_flip)
 
 def checklink(path):
     """check whether the given path is on a symlink-capable filesystem"""
     # mktemp is not racy because symlink creation will fail if the
     # file already exists
     name = tempfile.mktemp(dir=path)
     try:
         os.symlink(".", name)
         os.unlink(name)
         return True
     except (OSError, AttributeError):
         return False
 
 _umask = os.umask(0)
 os.umask(_umask)
 
 def needbinarypatch():
     """return True if patches should be applied in binary mode by default."""
     return os.name == 'nt'
 
 def endswithsep(path):
     '''Check path ends with os.sep or os.altsep.'''
     return path.endswith(os.sep) or os.altsep and path.endswith(os.altsep)
 
 def splitpath(path):
     '''Split path by os.sep.
     Note that this function does not use os.altsep because this is
     an alternative of simple "xxx.split(os.sep)".
     It is recommended to use os.path.normpath() before using this
     function if need.'''
     return path.split(os.sep)
 
 def gui():
     '''Are we running in a GUI?'''
     return os.name == "nt" or os.name == "mac" or os.environ.get("DISPLAY")
 
 def lookup_reg(key, name=None, scope=None):
     return None
 
 # Platform specific variants
 if os.name == 'nt':
     import msvcrt
     nulldev = 'NUL:'
 
     class winstdout:
         '''stdout on windows misbehaves if sent through a pipe'''
 
         def __init__(self, fp):
             self.fp = fp
 
         def __getattr__(self, key):
             return getattr(self.fp, key)
 
         def close(self):
             try:
                 self.fp.close()
             except: pass
 
         def write(self, s):
             try:
                 # This is workaround for "Not enough space" error on
                 # writing large size of data to console.
                 limit = 16000
                 l = len(s)
                 start = 0
                 while start < l:
                     end = start + limit
                     self.fp.write(s[start:end])
                     start = end
             except IOError, inst:
                 if inst.errno != 0: raise
                 self.close()
                 raise IOError(errno.EPIPE, 'Broken pipe')
 
         def flush(self):
             try:
                 return self.fp.flush()
             except IOError, inst:
                 if inst.errno != errno.EINVAL: raise
                 self.close()
                 raise IOError(errno.EPIPE, 'Broken pipe')
 
     sys.stdout = winstdout(sys.stdout)
 
     def _is_win_9x():
         '''return true if run on windows 95, 98 or me.'''
         try:
             return sys.getwindowsversion()[3] == 1
         except AttributeError:
             return 'command' in os.environ.get('comspec', '')
 
     def openhardlinks():
         return not _is_win_9x and "win32api" in locals()
 
     def system_rcpath():
         try:
             return system_rcpath_win32()
         except:
             return [r'c:\mercurial\mercurial.ini']
 
     def user_rcpath():
         '''return os-specific hgrc search path to the user dir'''
         try:
             path = user_rcpath_win32()
         except:
             home = os.path.expanduser('~')
             path = [os.path.join(home, 'mercurial.ini'),
                     os.path.join(home, '.hgrc')]
         userprofile = os.environ.get('USERPROFILE')
         if userprofile:
             path.append(os.path.join(userprofile, 'mercurial.ini'))
             path.append(os.path.join(userprofile, '.hgrc'))
         return path
 
     def parse_patch_output(output_line):
         """parses the output produced by patch and returns the file name"""
         pf = output_line[14:]
         if pf[0] == '`':
             pf = pf[1:-1] # Remove the quotes
         return pf
 
     def sshargs(sshcmd, host, user, port):
         '''Build argument list for ssh or Plink'''
         pflag = 'plink' in sshcmd.lower() and '-P' or '-p'
         args = user and ("%s@%s" % (user, host)) or host
         return port and ("%s %s %s" % (args, pflag, port)) or args
 
     def testpid(pid):
         '''return False if pid dead, True if running or not known'''
         return True
 
     def set_flags(f, l, x):
         pass
 
     def set_binary(fd):
         # When run without console, pipes may expose invalid
         # fileno(), usually set to -1.
         if hasattr(fd, 'fileno') and fd.fileno() >= 0:
             msvcrt.setmode(fd.fileno(), os.O_BINARY)
 
     def pconvert(path):
         return '/'.join(splitpath(path))
 
     def localpath(path):
         return path.replace('/', '\\')
 
     def normpath(path):
         return pconvert(os.path.normpath(path))
 
     makelock = _makelock_file
     readlock = _readlock_file
 
     def samestat(s1, s2):
         return False
 
     # A sequence of backslashes is special iff it precedes a double quote:
     # - if there's an even number of backslashes, the double quote is not
     #   quoted (i.e. it ends the quoted region)
     # - if there's an odd number of backslashes, the double quote is quoted
     # - in both cases, every pair of backslashes is unquoted into a single
     #   backslash
     # (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx )
     # So, to quote a string, we must surround it in double quotes, double
     # the number of backslashes that preceed double quotes and add another
     # backslash before every double quote (being careful with the double
     # quote we've appended to the end)
     _quotere = None
     def shellquote(s):
         global _quotere
         if _quotere is None:
             _quotere = re.compile(r'(\\*)("|\\$)')
         return '"%s"' % _quotere.sub(r'\1\1\\\2', s)
 
     def quotecommand(cmd):
         """Build a command string suitable for os.popen* calls."""
         # The extra quotes are needed because popen* runs the command
         # through the current COMSPEC. cmd.exe suppress enclosing quotes.
         return '"' + cmd + '"'
 
     def popen(command, mode='r'):
         # Work around "popen spawned process may not write to stdout
         # under windows"
         # http://bugs.python.org/issue1366
         command += " 2> %s" % nulldev
         return os.popen(quotecommand(command), mode)
 
     def explain_exit(code):
         return _("exited with status %d") % code, code
 
     # if you change this stub into a real check, please try to implement the
     # username and groupname functions above, too.
     def isowner(fp, st=None):
         return True
 
     def find_in_path(name, path, default=None):
         '''find name in search path. path can be string (will be split
         with os.pathsep), or iterable thing that returns strings.  if name
         found, return path to name. else return default. name is looked up
         using cmd.exe rules, using PATHEXT.'''
         if isinstance(path, str):
             path = path.split(os.pathsep)
 
         pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD')
         pathext = pathext.lower().split(os.pathsep)
         isexec = os.path.splitext(name)[1].lower() in pathext
 
         for p in path:
             p_name = os.path.join(p, name)
 
             if isexec and os.path.exists(p_name):
                 return p_name
 
             for ext in pathext:
                 p_name_ext = p_name + ext
                 if os.path.exists(p_name_ext):
                     return p_name_ext
         return default
 
     def set_signal_handler():
         try:
             set_signal_handler_win32()
         except NameError:
             pass
 
     try:
         # override functions with win32 versions if possible
         from util_win32 import *
         if not _is_win_9x():
             posixfile = posixfile_nt
     except ImportError:
         pass
 
 else:
     nulldev = '/dev/null'
 
     def rcfiles(path):
         rcs = [os.path.join(path, 'hgrc')]
         rcdir = os.path.join(path, 'hgrc.d')
         try:
             rcs.extend([os.path.join(rcdir, f)
                         for f, kind in osutil.listdir(rcdir)
                         if f.endswith(".rc")])
         except OSError:
             pass
         return rcs
 
     def system_rcpath():
         path = []
         # old mod_python does not set sys.argv
         if len(getattr(sys, 'argv', [])) > 0:
             path.extend(rcfiles(os.path.dirname(sys.argv[0]) +
                                   '/../etc/mercurial'))
         path.extend(rcfiles('/etc/mercurial'))
         return path
 
     def user_rcpath():
         return [os.path.expanduser('~/.hgrc')]
 
     def parse_patch_output(output_line):
         """parses the output produced by patch and returns the file name"""
         pf = output_line[14:]
         if os.sys.platform == 'OpenVMS':
             if pf[0] == '`':
                 pf = pf[1:-1] # Remove the quotes
         else:
            if pf.startswith("'") and pf.endswith("'") and " " in pf:
                 pf = pf[1:-1] # Remove the quotes
         return pf
 
     def sshargs(sshcmd, host, user, port):
         '''Build argument list for ssh'''
         args = user and ("%s@%s" % (user, host)) or host
         return port and ("%s -p %s" % (args, port)) or args
 
     def is_exec(f):
         """check whether a file is executable"""
         return (os.lstat(f).st_mode & 0100 != 0)
 
     def set_flags(f, l, x):
         s = os.lstat(f).st_mode
         if l:
             if not stat.S_ISLNK(s):
                 # switch file to link
                 data = file(f).read()
                 os.unlink(f)
                 try:
                     os.symlink(data, f)
                 except:
                     # failed to make a link, rewrite file
                     file(f, "w").write(data)
             # no chmod needed at this point
             return
         if stat.S_ISLNK(s):
             # switch link to file
             data = os.readlink(f)
             os.unlink(f)
             file(f, "w").write(data)
             s = 0666 & ~_umask # avoid restatting for chmod
 
         sx = s & 0100
         if x and not sx:
             # Turn on +x for every +r bit when making a file executable
             # and obey umask.
             os.chmod(f, s | (s & 0444) >> 2 & ~_umask)
         elif not x and sx:
             # Turn off all +x bits
             os.chmod(f, s & 0666)
 
     def set_binary(fd):
         pass
 
     def pconvert(path):
         return path
 
     def localpath(path):
         return path
 
     normpath = os.path.normpath
     samestat = os.path.samestat
 
     def makelock(info, pathname):
         try:
             os.symlink(info, pathname)
         except OSError, why:
             if why.errno == errno.EEXIST:
                 raise
             else:
                 _makelock_file(info, pathname)
 
     def readlock(pathname):
         try:
             return os.readlink(pathname)
         except OSError, why:
             if why.errno in (errno.EINVAL, errno.ENOSYS):
                 return _readlock_file(pathname)
             else:
                 raise
 
     def shellquote(s):
         if os.sys.platform == 'OpenVMS':
             return '"%s"' % s
         else:
             return "'%s'" % s.replace("'", "'\\''")
 
     def quotecommand(cmd):
         return cmd
 
     def popen(command, mode='r'):
         return os.popen(command, mode)
 
     def testpid(pid):
         '''return False if pid dead, True if running or not sure'''
         if os.sys.platform == 'OpenVMS':
             return True
         try:
             os.kill(pid, 0)
             return True
         except OSError, inst:
             return inst.errno != errno.ESRCH
 
     def explain_exit(code):
         """return a 2-tuple (desc, code) describing a process's status"""
         if os.WIFEXITED(code):
             val = os.WEXITSTATUS(code)
             return _("exited with status %d") % val, val
         elif os.WIFSIGNALED(code):
             val = os.WTERMSIG(code)
             return _("killed by signal %d") % val, val
         elif os.WIFSTOPPED(code):
             val = os.WSTOPSIG(code)
             return _("stopped by signal %d") % val, val
         raise ValueError(_("invalid exit code"))
 
     def isowner(fp, st=None):
         """Return True if the file object f belongs to the current user.
 
         The return value of a util.fstat(f) may be passed as the st argument.
         """
         if st is None:
             st = fstat(fp)
         return st.st_uid == os.getuid()
 
     def find_in_path(name, path, default=None):
         '''find name in search path. path can be string (will be split
         with os.pathsep), or iterable thing that returns strings.  if name
         found, return path to name. else return default.'''
         if isinstance(path, str):
             path = path.split(os.pathsep)
         for p in path:
             p_name = os.path.join(p, name)
             if os.path.exists(p_name):
                 return p_name
         return default
 
     def set_signal_handler():
         pass
 
 def find_exe(name, default=None):
     '''find path of an executable.
     if name contains a path component, return it as is.  otherwise,
     use normal executable search path.'''
 
     if os.sep in name or sys.platform == 'OpenVMS':
         # don't check the executable bit.  if the file isn't
         # executable, whoever tries to actually run it will give a
         # much more useful error message.
         return name
     return find_in_path(name, os.environ.get('PATH', ''), default=default)
 
 def mktempcopy(name, emptyok=False, createmode=None):
     """Create a temporary file with the same contents from name
 
     The permission bits are copied from the original file.
 
     If the temporary file is going to be truncated immediately, you
     can use emptyok=True as an optimization.
 
     Returns the name of the temporary file.
     """
     d, fn = os.path.split(name)
     fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, dir=d)
     os.close(fd)
     # Temporary files are created with mode 0600, which is usually not
     # what we want.  If the original file already exists, just copy
     # its mode.  Otherwise, manually obey umask.
     try:
         st_mode = os.lstat(name).st_mode & 0777
     except OSError, inst:
         if inst.errno != errno.ENOENT:
             raise
         st_mode = createmode
         if st_mode is None:
             st_mode = ~_umask
         st_mode &= 0666
     os.chmod(temp, st_mode)
     if emptyok:
         return temp
     try:
         try:
             ifp = posixfile(name, "rb")
         except IOError, inst:
             if inst.errno == errno.ENOENT:
                 return temp
             if not getattr(inst, 'filename', None):
                 inst.filename = name
             raise
         ofp = posixfile(temp, "wb")
         for chunk in filechunkiter(ifp):
             ofp.write(chunk)
         ifp.close()
         ofp.close()
     except:
         try: os.unlink(temp)
         except: pass
         raise
     return temp
 
 class atomictempfile(posixfile):
     """file-like object that atomically updates a file
 
     All writes will be redirected to a temporary copy of the original
     file.  When rename is called, the copy is renamed to the original
     name, making the changes visible.
     """
     def __init__(self, name, mode, createmode):
         self.__name = name
         self.temp = mktempcopy(name, emptyok=('w' in mode),
                                createmode=createmode)
         posixfile.__init__(self, self.temp, mode)
 
     def rename(self):
         if not self.closed:
             posixfile.close(self)
             rename(self.temp, localpath(self.__name))
 
     def __del__(self):
         if not self.closed:
             try:
                 os.unlink(self.temp)
             except: pass
             posixfile.close(self)
 
 def makedirs(name, mode=None):
     """recursive directory creation with parent mode inheritance"""
     try:
         os.mkdir(name)
         if mode is not None:
             os.chmod(name, mode)
         return
     except OSError, err:
         if err.errno == errno.EEXIST:
             return
         if err.errno != errno.ENOENT:
             raise
     parent = os.path.abspath(os.path.dirname(name))
     makedirs(parent, mode)
     makedirs(name, mode)
 
 class opener(object):
     """Open files relative to a base directory
 
     This class is used to hide the details of COW semantics and
     remote file access from higher level code.
     """
     def __init__(self, base, audit=True):
         self.base = base
         if audit:
             self.audit_path = path_auditor(base)
         else:
             self.audit_path = always
         self.createmode = None
 
     def __getattr__(self, name):
         if name == '_can_symlink':
             self._can_symlink = checklink(self.base)
             return self._can_symlink
         raise AttributeError(name)
 
     def _fixfilemode(self, name):
         if self.createmode is None:
             return
         os.chmod(name, self.createmode & 0666)
 
     def __call__(self, path, mode="r", text=False, atomictemp=False):
         self.audit_path(path)
         f = os.path.join(self.base, path)
 
         if not text and "b" not in mode:
             mode += "b" # for that other OS
 
         nlink = -1
         if mode not in ("r", "rb"):
             try:
                 nlink = nlinks(f)
             except OSError:
                 nlink = 0
                 d = os.path.dirname(f)
                 if not os.path.isdir(d):
                     makedirs(d, self.createmode)
             if atomictemp:
                 return atomictempfile(f, mode, self.createmode)
             if nlink > 1:
                 rename(mktempcopy(f), f)
         fp = posixfile(f, mode)
         if nlink == 0:
             self._fixfilemode(f)
         return fp
 
     def symlink(self, src, dst):
         self.audit_path(dst)
         linkname = os.path.join(self.base, dst)
         try:
             os.unlink(linkname)
         except OSError:
             pass
 
         dirname = os.path.dirname(linkname)
         if not os.path.exists(dirname):
             makedirs(dirname, self.createmode)
 
         if self._can_symlink:
             try:
                 os.symlink(src, linkname)
             except OSError, err:
                 raise OSError(err.errno, _('could not symlink to %r: %s') %
                               (src, err.strerror), linkname)
         else:
             f = self(dst, "w")
             f.write(src)
             f.close()
             self._fixfilemode(dst)
 
 class chunkbuffer(object):
     """Allow arbitrary sized chunks of data to be efficiently read from an
     iterator over chunks of arbitrary size."""
 
     def __init__(self, in_iter):
         """in_iter is the iterator that's iterating over the input chunks.
         targetsize is how big a buffer to try to maintain."""
         self.iter = iter(in_iter)
         self.buf = ''
         self.targetsize = 2**16
 
     def read(self, l):
         """Read L bytes of data from the iterator of chunks of data.
         Returns less than L bytes if the iterator runs dry."""
         if l > len(self.buf) and self.iter:
             # Clamp to a multiple of self.targetsize
             targetsize = max(l, self.targetsize)
             collector = cStringIO.StringIO()
             collector.write(self.buf)
             collected = len(self.buf)
             for chunk in self.iter:
                 collector.write(chunk)
                 collected += len(chunk)
                 if collected >= targetsize:
                     break
             if collected < targetsize:
                 self.iter = False
             self.buf = collector.getvalue()
         if len(self.buf) == l:
             s, self.buf = str(self.buf), ''
         else:
             s, self.buf = self.buf[:l], buffer(self.buf, l)
         return s
 
 def filechunkiter(f, size=65536, limit=None):
     """Create a generator that produces the data in the file size
     (default 65536) bytes at a time, up to optional limit (default is
     to read all data).  Chunks may be less than size bytes if the
     chunk is the last chunk in the file, or the file is a socket or
     some other type of file that sometimes reads less data than is
     requested."""
     assert size >= 0
     assert limit is None or limit >= 0
     while True:
         if limit is None: nbytes = size
         else: nbytes = min(limit, size)
         s = nbytes and f.read(nbytes)
         if not s: break
         if limit: limit -= len(s)
         yield s
 
 def makedate():
     lt = time.localtime()
     if lt[8] == 1 and time.daylight:
         tz = time.altzone
     else:
         tz = time.timezone
     return time.mktime(lt), tz
 
 def datestr(date=None, format='%a %b %d %H:%M:%S %Y %1%2'):
     """represent a (unixtime, offset) tuple as a localized time.
     unixtime is seconds since the epoch, and offset is the time zone's
     number of seconds away from UTC. if timezone is false, do not
     append time zone to string."""
     t, tz = date or makedate()
     if "%1" in format or "%2" in format:
         sign = (tz > 0) and "-" or "+"
         minutes = abs(tz) / 60
         format = format.replace("%1", "%c%02d" % (sign, minutes / 60))
         format = format.replace("%2", "%02d" % (minutes % 60))
     s = time.strftime(format, time.gmtime(float(t) - tz))
     return s
 
 def shortdate(date=None):
     """turn (timestamp, tzoff) tuple into iso 8631 date."""
     return datestr(date, format='%Y-%m-%d')
 
 def strdate(string, format, defaults=[]):
     """parse a localized time string and return a (unixtime, offset) tuple.
     if the string cannot be parsed, ValueError is raised."""
     def timezone(string):
         tz = string.split()[-1]
         if tz[0] in "+-" and len(tz) == 5 and tz[1:].isdigit():
             sign = (tz[0] == "+") and 1 or -1
             hours = int(tz[1:3])
             minutes = int(tz[3:5])
             return -sign * (hours * 60 + minutes) * 60
         if tz == "GMT" or tz == "UTC":
             return 0
         return None
 
     # NOTE: unixtime = localunixtime + offset
     offset, date = timezone(string), string
     if offset != None:
         date = " ".join(string.split()[:-1])
 
     # add missing elements from defaults
     for part in defaults:
         found = [True for p in part if ("%"+p) in format]
         if not found:
             date += "@" + defaults[part]
             format += "@%" + part[0]
 
     timetuple = time.strptime(date, format)
     localunixtime = int(calendar.timegm(timetuple))
     if offset is None:
         # local timezone
         unixtime = int(time.mktime(timetuple))
         offset = unixtime - localunixtime
     else:
         unixtime = localunixtime + offset
     return unixtime, offset
 
 def parsedate(date, formats=None, defaults=None):
     """parse a localized date/time string and return a (unixtime, offset) tuple.
 
     The date may be a "unixtime offset" string or in one of the specified
     formats. If the date already is a (unixtime, offset) tuple, it is returned.
     """
     if not date:
         return 0, 0
     if isinstance(date, tuple) and len(date) == 2:
         return date
     if not formats:
         formats = defaultdateformats
     date = date.strip()
     try:
         when, offset = map(int, date.split(' '))
     except ValueError:
         # fill out defaults
         if not defaults:
             defaults = {}
         now = makedate()
         for part in "d mb yY HI M S".split():
             if part not in defaults:
                 if part[0] in "HMS":
                     defaults[part] = "00"
                 else:
                     defaults[part] = datestr(now, "%" + part[0])
 
         for format in formats:
             try:
                 when, offset = strdate(date, format, defaults)
             except (ValueError, OverflowError):
                 pass
             else:
                 break
         else:
             raise Abort(_('invalid date: %r ') % date)
     # validate explicit (probably user-specified) date and
     # time zone offset. values must fit in signed 32 bits for
     # current 32-bit linux runtimes. timezones go from UTC-12
     # to UTC+14
     if abs(when) > 0x7fffffff:
         raise Abort(_('date exceeds 32 bits: %d') % when)
     if offset < -50400 or offset > 43200:
         raise Abort(_('impossible time zone offset: %d') % offset)
     return when, offset
 
 def matchdate(date):
     """Return a function that matches a given date match specifier
 
     Formats include:
 
     '{date}' match a given date to the accuracy provided
 
     '<{date}' on or before a given date
 
     '>{date}' on or after a given date
 
     """
 
     def lower(date):
         d = dict(mb="1", d="1")
         return parsedate(date, extendeddateformats, d)[0]
 
     def upper(date):
         d = dict(mb="12", HI="23", M="59", S="59")
         for days in "31 30 29".split():
             try:
                 d["d"] = days
                 return parsedate(date, extendeddateformats, d)[0]
             except:
                 pass
         d["d"] = "28"
         return parsedate(date, extendeddateformats, d)[0]
 
     if date[0] == "<":
         when = upper(date[1:])
         return lambda x: x <= when
     elif date[0] == ">":
         when = lower(date[1:])
         return lambda x: x >= when
     elif date[0] == "-":
         try:
             days = int(date[1:])
         except ValueError:
             raise Abort(_("invalid day spec: %s") % date[1:])
         when = makedate()[0] - days * 3600 * 24
         return lambda x: x >= when
     elif " to " in date:
         a, b = date.split(" to ")
         start, stop = lower(a), upper(b)
         return lambda x: x >= start and x <= stop
     else:
         start, stop = lower(date), upper(date)
         return lambda x: x >= start and x <= stop
 
 def shortuser(user):
     """Return a short representation of a user name or email address."""
     f = user.find('@')
     if f >= 0:
         user = user[:f]
     f = user.find('<')
     if f >= 0:
         user = user[f+1:]
     f = user.find(' ')
     if f >= 0:
         user = user[:f]
     f = user.find('.')
     if f >= 0:
         user = user[:f]
     return user
 
 def email(author):
     '''get email of author.'''
     r = author.find('>')
     if r == -1: r = None
     return author[author.find('<')+1:r]
 
 def ellipsis(text, maxlength=400):
     """Trim string to at most maxlength (default: 400) characters."""
     if len(text) <= maxlength:
         return text
     else:
         return "%s..." % (text[:maxlength-3])
 
 def walkrepos(path, followsym=False, seen_dirs=None):
     '''yield every hg repository under path, recursively.'''
     def errhandler(err):
         if err.filename == path:
             raise err
     if followsym and hasattr(os.path, 'samestat'):
         def _add_dir_if_not_there(dirlst, dirname):
             match = False
             samestat = os.path.samestat
             dirstat = os.stat(dirname)
             for lstdirstat in dirlst:
                 if samestat(dirstat, lstdirstat):
                     match = True
                     break
             if not match:
                 dirlst.append(dirstat)
             return not match
     else:
         followsym = False
 
     if (seen_dirs is None) and followsym:
         seen_dirs = []
         _add_dir_if_not_there(seen_dirs, path)
     for root, dirs, files in os.walk(path, topdown=True, onerror=errhandler):
         if '.hg' in dirs:
             dirs[:] = [] # don't descend further
             yield root # found a repository
             qroot = os.path.join(root, '.hg', 'patches')
             if os.path.isdir(os.path.join(qroot, '.hg')):
                 yield qroot # we have a patch queue repo here
         elif followsym:
             newdirs = []
             for d in dirs:
                 fname = os.path.join(root, d)
                 if _add_dir_if_not_there(seen_dirs, fname):
                     if os.path.islink(fname):
                         for hgname in walkrepos(fname, True, seen_dirs):
                             yield hgname
                     else:
                         newdirs.append(d)
             dirs[:] = newdirs
 
 _rcpath = None
 
 def os_rcpath():
     '''return default os-specific hgrc search path'''
     path = system_rcpath()
     path.extend(user_rcpath())
     path = [os.path.normpath(f) for f in path]
     return path
 
 def rcpath():
     '''return hgrc search path. if env var HGRCPATH is set, use it.
     for each item in path, if directory, use files ending in .rc,
     else use item.
     make HGRCPATH empty to only look in .hg/hgrc of current repo.
     if no HGRCPATH, use default os-specific path.'''
     global _rcpath
     if _rcpath is None:
         if 'HGRCPATH' in os.environ:
             _rcpath = []
             for p in os.environ['HGRCPATH'].split(os.pathsep):
                 if not p: continue
                 if os.path.isdir(p):
                     for f, kind in osutil.listdir(p):
                         if f.endswith('.rc'):
                             _rcpath.append(os.path.join(p, f))
                 else:
                     _rcpath.append(p)
         else:
             _rcpath = os_rcpath()
     return _rcpath
 
 def bytecount(nbytes):
     '''return byte count formatted as readable string, with units'''
 
     units = (
         (100, 1<<30, _('%.0f GB')),
         (10, 1<<30, _('%.1f GB')),
         (1, 1<<30, _('%.2f GB')),
         (100, 1<<20, _('%.0f MB')),
         (10, 1<<20, _('%.1f MB')),
         (1, 1<<20, _('%.2f MB')),
         (100, 1<<10, _('%.0f KB')),
         (10, 1<<10, _('%.1f KB')),
         (1, 1<<10, _('%.2f KB')),
         (1, 1, _('%.0f bytes')),
         )
 
     for multiplier, divisor, format in units:
         if nbytes >= divisor * multiplier:
             return format % (nbytes / float(divisor))
     return units[-1][2] % nbytes
 
 def drop_scheme(scheme, path):
     sc = scheme + ':'
     if path.startswith(sc):
         path = path[len(sc):]
         if path.startswith('//'):
             path = path[2:]
     return path
 
 def uirepr(s):
     # Avoid double backslash in Windows path repr()
     return repr(s).replace('\\\\', '\\')
 
 def hidepassword(url):
     '''hide user credential in a url string'''
     scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
     netloc = re.sub('([^:]*):([^@]*)@(.*)', r'\1:***@\3', netloc)
     return urlparse.urlunparse((scheme, netloc, path, params, query, fragment))
 
 def removeauth(url):
     '''remove all authentication information from a url string'''
     scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
     netloc = netloc[netloc.find('@')+1:]
     return urlparse.urlunparse((scheme, netloc, path, params, query, fragment))

templates/coal/graph.tmpl

@@ -1,113 +1,111
 {header}
 <title>{repo|escape}: revision graph</title>
 <link rel="alternate" type="application/atom+xml"
    href="{url}atom-log" title="Atom feed for {repo|escape}: log">
 <link rel="alternate" type="application/rss+xml"
    href="{url}rss-log" title="RSS feed for {repo|escape}: log">
 <!--[if IE]><script type="text/javascript" src="{staticurl}excanvas.js"></script><![endif]-->
 </head>
 <body>
 
 <div class="container">
 <div class="menu">
 <div class="logo">
 <a href="http://www.selenic.com/mercurial/">
 <img src="{staticurl}hglogo.png" width=75 height=90 border=0 alt="mercurial"></a>
 </div>
 <ul>
 <li><a href="{url}shortlog/{node|short}{sessionvars%urlparameter}">log</a></li>
 <li class="active">graph</li>
 <li><a href="{url}tags{sessionvars%urlparameter}">tags</a></li>
 </ul>
 <ul>
 <li><a href="{url}rev/{node|short}{sessionvars%urlparameter}">changeset</a></li>
 <li><a href="{url}file/{node|short}{path|urlescape}{sessionvars%urlparameter}">browse</a></li>
 </ul>
 </div>
 
 <div class="main">
 <h2>{repo|escape}</h2>
 <h3>graph</h3>
 
 <form class="search" action="{url}log">
 {sessionvars%hiddenformentry}
 <p><input name="rev" id="search1" type="text" size="30"></p>
 </form>
 
 <div class="navigate">
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountless}">less</a>
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountmore}">more</a>
 | {changenav%navgraphentry}
 </div>
 
-<div id="noscript">The revision graph only works with JavaScript-enabled browsers.</div>
+<noscript>The revision graph only works with JavaScript-enabled browsers.</noscript>
 
 <div id="wrapper">
 <ul id="nodebgs"></ul>
 <canvas id="graph" width="224" height="{canvasheight}"></canvas>
 <ul id="graphnodes"></ul>
 </div>
 
 <script type="text/javascript" src="{staticurl}graph.js"></script>
 <script type="text/javascript">
 <!-- hide script content
 
-document.getElementById('noscript').style.display = 'none';
-
 var data = {jsdata|json};
 var graph = new Graph();
 graph.scale({bg_height});
 
 graph.edge = function(x0, y0, x1, y1, color) {
 	
 	this.setColor(color, 0.0, 0.65);
 	this.ctx.beginPath();
 	this.ctx.moveTo(x0, y0);
 	this.ctx.lineTo(x1, y1);
 	this.ctx.stroke();
 	
 }
 
 var revlink = '<li style="_STYLE"><span class="desc">';
 revlink += '<a href="{url}rev/_NODEID{sessionvars%urlparameter}" title="_NODEID">_DESC</a>';
 revlink += '</span><span class="tag">_TAGS</span>';
 revlink += '<span class="info">_DATE ago, by _USER</span></li>';
 
 graph.vertex = function(x, y, color, parity, cur) {
 	
 	this.ctx.beginPath();
 	color = this.setColor(color, 0.25, 0.75);
 	this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
 	this.ctx.fill();
 	
 	var bg = '<li class="bg parity' + parity + '"></li>';
 	var left = (this.columns + 1) * this.bg_height;
 	var nstyle = 'padding-left: ' + left + 'px;';
 	var item = revlink.replace(/_STYLE/, nstyle);
 	item = item.replace(/_PARITY/, 'parity' + parity);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_DESC/, cur[3]);
 	item = item.replace(/_USER/, cur[4]);
 	item = item.replace(/_DATE/, cur[5]);
 	item = item.replace(/_TAGS/, cur[7].join('&nbsp; '));
 	
 	return [bg, item];
 	
 }
 
 graph.render(data);
 
 // stop hiding script -->
 </script>
 
 <div class="navigate">
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountless}">less</a>
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountmore}">more</a>
 | {changenav%navgraphentry}
 </div>
 
 </div>
 </div>
 
 {footer}

templates/gitweb/graph.tmpl

@@ -1,121 +1,119
 #header#
 <title>#repo|escape#: Graph</title>
 <link rel="alternate" type="application/atom+xml"
    href="{url}atom-log" title="Atom feed for #repo|escape#"/>
 <link rel="alternate" type="application/rss+xml"
    href="{url}rss-log" title="RSS feed for #repo|escape#"/>
 </head>
 <body>
 
 <div class="page_header">
 <a href="http://www.selenic.com/mercurial/" title="Mercurial" style="float: right;">Mercurial</a><a href="{url}summary{sessionvars%urlparameter}">#repo|escape#</a> / graph
 </div>
 
 <form action="{url}log">
 {sessionvars%hiddenformentry}
 <div class="search">
 <input type="text" name="rev"  />
 </div>
 </form>
 <div class="page_nav">
 <a href="{url}summary{sessionvars%urlparameter}">summary</a> |
 <a href="{url}shortlog{sessionvars%urlparameter}">shortlog</a> |
 <a href="{url}log/#rev#{sessionvars%urlparameter}">changelog</a> |
 graph |
 <a href="{url}tags{sessionvars%urlparameter}">tags</a> |
 <a href="{url}file/#node|short#{sessionvars%urlparameter}">files</a>
 <br/>
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountless}">less</a>
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountmore}">more</a>
 | #changenav%navgraphentry#<br/>
 </div>
 
 <div class="title">&nbsp;</div>
 
-<div id="noscript">The revision graph only works with JavaScript-enabled browsers.</div>
+<noscript>The revision graph only works with JavaScript-enabled browsers.</noscript>
 
 <div id="wrapper">
 <ul id="nodebgs"></ul>
 <canvas id="graph" width="224" height="#canvasheight#"></canvas>
 <ul id="graphnodes"></ul>
 </div>
 
 <script type="text/javascript" src="#staticurl#graph.js"></script>
 <script>
 <!-- hide script content
 
-document.getElementById('noscript').style.display = 'none';
-
 var data = {jsdata|json};
 var graph = new Graph();
 graph.scale({bg_height});
 
 graph.edge = function(x0, y0, x1, y1, color) {
 	
 	this.setColor(color, 0.0, 0.65);
 	this.ctx.beginPath();
 	this.ctx.moveTo(x0, y0);
 	this.ctx.lineTo(x1, y1);
 	this.ctx.stroke();
 	
 }
 
 var revlink = '<li style="_STYLE"><span class="desc">';
 revlink += '<a class="list" href="{url}rev/_NODEID{sessionvars%urlparameter}" title="_NODEID"><b>_DESC</b></a>';
 revlink += '</span> _TAGS';
 revlink += '<span class="info">_DATE ago, by _USER</span></li>';
 
 graph.vertex = function(x, y, color, parity, cur) {
 	
 	this.ctx.beginPath();
 	color = this.setColor(color, 0.25, 0.75);
 	this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
 	this.ctx.fill();
 	
 	var bg = '<li class="bg parity' + parity + '"></li>';
 	var left = (this.columns + 1) * this.bg_height;
 	var nstyle = 'padding-left: ' + left + 'px;';
 	var item = revlink.replace(/_STYLE/, nstyle);
 	item = item.replace(/_PARITY/, 'parity' + parity);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_DESC/, cur[3]);
 	item = item.replace(/_USER/, cur[4]);
 	item = item.replace(/_DATE/, cur[5]);
 	
 	var tagspan = '';
 	if (cur[7].length || (cur[6][0] != 'default' || cur[6][1])) {
 		tagspan = '<span class="logtags">';
 		if (cur[6][1]) {
 			tagspan += '<span class="branchtag" title="' + cur[6][0] + '">';
 			tagspan += cur[6][0] + '</span> ';
 		} else if (!cur[6][1] && cur[6][0] != 'default') {
 			tagspan += '<span class="inbranchtag" title="' + cur[6][0] + '">';
 			tagspan += cur[6][0] + '</span> ';
 		}
 		if (cur[7].length) {
 			for (var t in cur[7]) {
 				var tag = cur[7][t];
 				tagspan += '<span class="tagtag">' + tag + '</span> ';
 			}
 		}
 		tagspan += '</span>';
 	}
 	
 	item = item.replace(/_TAGS/, tagspan);
 	return [bg, item];
 	
 }
 
 graph.render(data);
 
 // stop hiding script -->
 </script>
 
 <div class="page_nav">
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountless}">less</a>
 <a href="{url}graph/{uprev}{sessionvars%urlparameter}?revcount={revcountmore}">more</a>
 | {changenav%navgraphentry}
 </div>
 
 #footer#

templates/graph.tmpl

@@ -1,97 +1,95
 #header#
 <title>#repo|escape#: graph</title>
 <link rel="alternate" type="application/atom+xml"
    href="#url#atom-tags" title="Atom feed for #repo|escape#: tags">
 <link rel="alternate" type="application/rss+xml"
    href="#url#rss-tags" title="RSS feed for #repo|escape#: tags">
 <!--[if IE]><script type="text/javascript" src="#staticurl#excanvas.js"></script><![endif]-->
 </head>
 <body>
 
 <div class="buttons">
 <a href="#url#log{sessionvars%urlparameter}">changelog</a>
 <a href="#url#shortlog{sessionvars%urlparameter}">shortlog</a>
 <a href="#url#tags{sessionvars%urlparameter}">tags</a>
 <a href="#url#file/#node|short#/{sessionvars%urlparameter}">files</a>
 </div>
 
 <h2>graph</h2>
 
 <form action="#url#log">
 {sessionvars%hiddenformentry}
 <p>
 <label for="search1">search:</label>
 <input name="rev" id="search1" type="text" size="30">
 navigate: <small class="navigate">#changenav%navgraphentry#</small>
 </p>
 </form>
 
-<div id="noscript">The revision graph only works with JavaScript-enabled browsers.</div>
+<noscript>The revision graph only works with JavaScript-enabled browsers.</noscript>
 
 <div id="wrapper">
 <ul id="nodebgs"></ul>
 <canvas id="graph" width="224" height="#canvasheight#"></canvas>
 <ul id="graphnodes"></ul>
 </div>
 
 <script type="text/javascript" src="#staticurl#graph.js"></script>
 <script type="text/javascript">
 <!-- hide script content
 
-document.getElementById('noscript').style.display = 'none';
-
 var data = {jsdata|json};
 var graph = new Graph();
 graph.scale({bg_height});
 
 graph.edge = function(x0, y0, x1, y1, color) {
 	
 	this.setColor(color, 0.0, 0.65);
 	this.ctx.beginPath();
 	this.ctx.moveTo(x0, y0);
 	this.ctx.lineTo(x1, y1);
 	this.ctx.stroke();
 	
 }
 
 var revlink = '<li style="_STYLE"><span class="desc">';
 revlink += '<a href="{url}rev/_NODEID{sessionvars%urlparameter}" title="_NODEID">_DESC</a>';
 revlink += '</span><span class="info">_DATE ago, by _USER</span></li>';
 
 graph.vertex = function(x, y, color, parity, cur) {
 	
 	this.ctx.beginPath();
 	color = this.setColor(color, 0.25, 0.75);
 	this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
 	this.ctx.fill();
 	
 	var bg = '<li class="bg parity' + parity + '"></li>';
 	var left = (this.columns + 1) * this.bg_height;
 	var nstyle = 'padding-left: ' + left + 'px;';
 	var item = revlink.replace(/_STYLE/, nstyle);
 	item = item.replace(/_PARITY/, 'parity' + parity);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_NODEID/, cur[0]);
 	item = item.replace(/_DESC/, cur[3]);
 	item = item.replace(/_USER/, cur[4]);
 	item = item.replace(/_DATE/, cur[5]);
 	
 	return [bg, item];
 	
 }
 
 graph.render(data);
 
 // stop hiding script -->
 </script>
 
 <form action="#url#log">
 {sessionvars%hiddenformentry}
 <p>
 <label for="search1">search:</label>
 <input name="rev" id="search1" type="text" size="30">
 navigate: <small class="navigate">#changenav%navgraphentry#</small>
 </p>
 </form>
 
 #footer#

tests/test-extension.out

@@ -1,63 +1,67
 uisetup called
 ui.parentui isnot None
 reposetup called for a
 ui == repo.ui
 Foo
 uisetup called
 ui.parentui is None
 reposetup called for a
 ui == repo.ui
 reposetup called for b
 ui == repo.ui
 updating working directory
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 uisetup called
 ui.parentui is None
 Bar
 % module/__init__.py-style
 uisetup called
 ui.parentui isnot None
 reposetup called for a
 ui == repo.ui
 Foo
 empty extension - empty cmdtable
 
 no commands defined
 debugextension extension - only debugcommands
 
 no commands defined
 debugextension extension - only debugcommands
 
 list of commands:
 
  debugfoobar:
       yet another debug command
 
+enabled extensions:
+
+ debugextension   only debugcommands
+
 special help topics:
  dates             Date Formats
  patterns          File Name Patterns
  environment, env  Environment Variables
  revs, revisions   Specifying Single Revisions
  mrevs, multirevs  Specifying Multiple Revisions
 
 global options:
  -R --repository      repository root directory or symbolic path name
     --cwd             change working directory
  -y --noninteractive  do not prompt, assume 'yes' for any required answers
  -q --quiet           suppress output
  -v --verbose         enable additional output
     --config          set/override config option
     --debug           enable debugging output
     --debugger        start debugger
     --encoding        set the charset encoding (default: ascii)
     --encodingmode    set the charset encoding mode (default: strict)
     --lsprof          print improved command execution profile
     --traceback       print traceback on exception
     --time            time how long the command takes
     --profile         print command execution profile
     --version         output version information and exit
  -h --help            display help and exit
 % issue811
 % show extensions
 debugissue811
 mq

tests/test-keyword.out

@@ -1,496 +1,502
 % help
 keyword extension - keyword expansion in local repositories
 
 This extension expands RCS/CVS-like or self-customized $Keywords$
 in tracked text files selected by your configuration.
 
 Keywords are only expanded in local repositories and not stored in
 the change history. The mechanism can be regarded as a convenience
 for the current user or for archive distribution.
 
 Configuration is done in the [keyword] and [keywordmaps] sections
 of hgrc files.
 
 Example:
 
     [keyword]
     # expand keywords in every python file except those matching "x*"
     **.py =
     x*    = ignore
 
 Note: the more specific you are in your filename patterns
       the less you lose speed in huge repos.
 
 For [keywordmaps] template mapping and expansion demonstration and
 control run "hg kwdemo".
 
 An additional date template filter {date|utcdate} is provided.
 
 The default template mappings (view with "hg kwdemo -d") can be replaced
 with customized keywords and templates.
 Again, run "hg kwdemo" to control the results of your config changes.
 
 Before changing/disabling active keywords, run "hg kwshrink" to avoid
 the risk of inadvertedly storing expanded keywords in the change history.
 
 To force expansion after enabling it, or a configuration change, run
 "hg kwexpand".
 
 Also, when committing with the record extension or using mq's qrecord, be aware
 that keywords cannot be updated. Again, run "hg kwexpand" on the files in
 question to update keyword expansions after all changes have been checked in.
 
 Expansions spanning more than one line and incremental expansions,
 like CVS' $Log$, are not supported. A keyword template map
 "Log = {desc}" expands to the first line of the changeset description.
 
 list of commands:
 
  kwdemo     print [keywordmaps] configuration and an expansion example
  kwexpand   expand keywords in working directory
  kwfiles    print files currently configured for keyword expansion
  kwshrink   revert expanded keywords in working directory
 
+enabled extensions:
+
+ keyword   keyword expansion in local repositories
+ mq        patch management and development
+ notify    hook extension to email notifications on commits/pushes
+
 use "hg -v help keyword" to show aliases and global options
 % hg kwdemo
 [extensions]
 hgext.keyword = 
 [keyword]
 * = 
 b = ignore
 demo.txt = 
 [keywordmaps]
 RCSFile = {file|basename},v
 Author = {author|user}
 Header = {root}/{file},v {node|short} {date|utcdate} {author|user}
 Source = {root}/{file},v
 Date = {date|utcdate}
 Id = {file|basename},v {node|short} {date|utcdate} {author|user}
 Revision = {node|short}
 $RCSFile: demo.txt,v $
 $Author: test $
 $Header: /TMP/demo.txt,v xxxxxxxxxxxx 2000/00/00 00:00:00 test $
 $Source: /TMP/demo.txt,v $
 $Date: 2000/00/00 00:00:00 $
 $Id: demo.txt,v xxxxxxxxxxxx 2000/00/00 00:00:00 test $
 $Revision: xxxxxxxxxxxx $
 [extensions]
 hgext.keyword = 
 [keyword]
 * = 
 b = ignore
 demo.txt = 
 [keywordmaps]
 Branch = {branches}
 $Branch: demobranch $
 % kwshrink should exit silently in empty/invalid repo
 pulling from test-keyword.hg
 requesting all changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % cat
 expand $Id$
 do not process $Id:
 xxx $
 ignore $Id$
 % addremove
 adding a
 adding b
 % status
 A a
 A b
 % default keyword expansion including commit hook
 % interrupted commit should not change state or run commit hook
 a
 b
 transaction abort!
 rollback completed
 abort: empty commit message
 % status
 A a
 A b
 % commit
 a
 b
 overwriting a expanding keywords
 running hook commit.test: cp a hooktest
 committed changeset 1:ef63ca68695bc9495032c6fda1350c71e6d256e9
 % status
 ? hooktest
 % identify
 ef63ca68695b
 % cat
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 ignore $Id$
 % hg cat
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 ignore $Id$
 a
 % diff a hooktest
 % removing commit hook from config
 % bundle
 2 changesets found
 % notify on pull to check whether keywords stay as is in email
 % ie. if patch.diff wrapper acts as it should
 % pull from bundle
 pulling from ../kw.hg
 requesting all changes
 adding changesets
 adding manifests
 adding file changes
 added 2 changesets with 3 changes to 3 files
 
 diff -r 000000000000 -r a2392c293916 sym
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/sym	Sat Feb 09 20:25:47 2008 +0100
 @@ -0,0 +1,1 @@
 +a
 \ No newline at end of file
 
 diff -r a2392c293916 -r ef63ca68695b a
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/a	Thu Jan 01 00:00:00 1970 +0000
 @@ -0,0 +1,3 @@
 +expand $Id$
 +do not process $Id:
 +xxx $
 diff -r a2392c293916 -r ef63ca68695b b
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/b	Thu Jan 01 00:00:00 1970 +0000
 @@ -0,0 +1,1 @@
 +ignore $Id$
 3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % remove notify config
 % touch
 % status
 % update
 3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % cat
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 ignore $Id$
 % check whether expansion is filewise
 % commit c
 adding c
 % force expansion
 overwriting a expanding keywords
 overwriting c expanding keywords
 % compare changenodes in a c
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 $Id: c,v 40a904bbbe4c 1970/01/01 00:00:01 user $
 tests for different changenodes
 % qinit -c
 % qimport
 % qcommit
 % keywords should not be expanded in patch
 # HG changeset patch
 # User User Name <[e-mail]>
 # Date 1 0
 # Node ID 40a904bbbe4cd4ab0a1f28411e35db26341a40ad
 # Parent  ef63ca68695bc9495032c6fda1350c71e6d256e9
 cndiff
 
 diff -r ef63ca68695b -r 40a904bbbe4c c
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/c	Thu Jan 01 00:00:01 1970 +0000
 @@ -0,0 +1,2 @@
 +$Id$
 +tests for different changenodes
 % qpop
 Patch queue now empty
 % qgoto - should imply qpush
 applying mqtest.diff
 Now at: mqtest.diff
 % cat
 $Id: c,v 40a904bbbe4c 1970/01/01 00:00:01 user $
 tests for different changenodes
 % qpop and move on
 Patch queue now empty
 % copy
 % kwfiles added
 a
 c
 % commit
 c
  c: copy a:0045e12f6c5791aac80ca6cbfd97709a88307292
 overwriting c expanding keywords
 committed changeset 2:e22d299ac0c2bd8897b3df5114374b9e4d4ca62f
 % cat a c
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 expand $Id: c,v e22d299ac0c2 1970/01/01 00:00:01 user $
 do not process $Id:
 xxx $
 % touch copied c
 % status
 % kwfiles
 a
 c
 % diff --rev
 diff -r ef63ca68695b c
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 @@ -0,0 +1,3 @@
 +expand $Id$
 +do not process $Id:
 +xxx $
 % rollback
 rolling back last transaction
 % status
 A c
 % update -C
 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 % custom keyword expansion
 % try with kwdemo
 [extensions]
 hgext.keyword = 
 [keyword]
 * = 
 b = ignore
 demo.txt = 
 [keywordmaps]
 Xinfo = {author}: {desc}
 $Xinfo: test: hg keyword config and expansion example $
 % cat
 expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
 do not process $Id:
 xxx $
 ignore $Id$
 % hg cat
 expand $Id: a ef63ca68695b Thu, 01 Jan 1970 00:00:00 +0000 user $
 do not process $Id:
 xxx $
 ignore $Id$
 a
 % interrupted commit should not change state
 transaction abort!
 rollback completed
 abort: empty commit message
 % status
 M a
 ? log
 % commit
 a
 overwriting a expanding keywords
 committed changeset 2:bb948857c743469b22bbf51f7ec8112279ca5d83
 % status
 % verify
 checking changesets
 checking manifests
 crosschecking files in changesets and manifests
 checking files
 3 files, 3 changesets, 4 total revisions
 % cat
 expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: firstline $
 ignore $Id$
 % hg cat
 expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: firstline $
 ignore $Id$
 a
 % annotate
 1: expand $Id$
 1: do not process $Id:
 1: xxx $
 2: $Xinfo$
 % remove
 committed changeset 3:d14c712653769de926994cf7fbb06c8fbd68f012
 % status
 % rollback
 rolling back last transaction
 % status
 R a
 % revert a
 % cat a
 expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: firstline $
 % clone to test incoming
 requesting all changes
 adding changesets
 adding manifests
 adding file changes
 added 2 changesets with 3 changes to 3 files
 updating working directory
 3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % incoming
 comparing with test-keyword/Test
 searching for changes
 changeset:   2:bb948857c743
 tag:         tip
 user:        User Name <[e-mail]>
 date:        Thu Jan 01 00:00:02 1970 +0000
 summary:     firstline
 
 % commit rejecttest
 a
 overwriting a expanding keywords
 committed changeset 2:85e279d709ffc28c9fdd1b868570985fc3d87082
 % export
 % import
 applying ../rejecttest.diff
 % cat
 expand $Id: a 4e0994474d25 Thu, 01 Jan 1970 00:00:03 +0000 user $ rejecttest
 do not process $Id: rejecttest
 xxx $
 $Xinfo: User Name <[e-mail]>: rejects? $
 ignore $Id$
 
 % rollback
 rolling back last transaction
 % clean update
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % kwexpand/kwshrink on selected files
 % copy a x/a
 % kwexpand a
 overwriting a expanding keywords
 % kwexpand x/a should abort
 abort: outstanding uncommitted changes
 x/a
  x/a: copy a:779c764182ce5d43e2b1eb66ce06d7b47bfe342e
 overwriting x/a expanding keywords
 committed changeset 3:cfa68229c1167443337266ebac453c73b1d5d16e
 % cat a
 expand $Id: x/a cfa68229c116 Thu, 01 Jan 1970 00:00:03 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: xa $
 % kwshrink a inside directory x
 overwriting x/a shrinking keywords
 % cat a
 expand $Id$
 do not process $Id:
 xxx $
 $Xinfo$
 % kwexpand nonexistent
 nonexistent:
 % hg serve
 % expansion
 % hgweb file
 200 Script output follows
 
 expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: firstline $
 % no expansion
 % hgweb annotate
 200 Script output follows
 
 
 user@1: expand $Id$
 user@1: do not process $Id:
 user@1: xxx $
 user@2: $Xinfo$
 
 
 
 
 % hgweb changeset
 200 Script output follows
 
 
 # HG changeset patch
 # User User Name <[e-mail]>
 # Date 3 0
 # Node ID cfa68229c1167443337266ebac453c73b1d5d16e
 # Parent bb948857c743469b22bbf51f7ec8112279ca5d83
 xa
 
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/x/a	Thu Jan 01 00:00:03 1970 +0000
 @@ -0,0 +1,4 @@
 +expand $Id$
 +do not process $Id:
 +xxx $
 +$Xinfo$
 
 % hgweb filediff
 200 Script output follows
 
 
 --- a/a	Thu Jan 01 00:00:00 1970 +0000
 +++ b/a	Thu Jan 01 00:00:02 1970 +0000
 @@ -1,3 +1,4 @@
  expand $Id$
  do not process $Id:
  xxx $
 +$Xinfo$
 
 
 
 
 % errors encountered
 % merge/resolve
 % simplemerge
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 created new head
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 $Id: m 8731e1dadc99 Thu, 01 Jan 1970 00:00:00 +0000 test $
 foo
 % conflict
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 created new head
 merging m
 warning: conflicts during merge.
 merging m failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 use 'hg resolve' to retry unresolved file merges
 % keyword stays outside conflict zone
 $Id$
 <<<<<<< local
 bar
 =======
 foo
 >>>>>>> other
 % resolve to local
 $Id: m 43dfd2854b5b Thu, 01 Jan 1970 00:00:00 +0000 test $
 bar
 % switch off expansion
 % kwshrink with unknown file u
 overwriting a shrinking keywords
 overwriting m shrinking keywords
 overwriting x/a shrinking keywords
 % cat
 expand $Id$
 do not process $Id:
 xxx $
 $Xinfo$
 ignore $Id$
 % hg cat
 expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
 do not process $Id:
 xxx $
 $Xinfo: User Name <[e-mail]>: firstline $
 ignore $Id$
 a
 % cat
 expand $Id$
 do not process $Id:
 xxx $
 $Xinfo$
 ignore $Id$
 % hg cat
 expand $Id$
 do not process $Id:
 xxx $
 $Xinfo$
 ignore $Id$
 a

tests/test-mq.out

@@ -1,554 +1,558
 % help
 mq extension - patch management and development
 
 This extension lets you work with a stack of patches in a Mercurial
 repository.  It manages two stacks of patches - all known patches, and
 applied patches (subset of known patches).
 
 Known patches are represented as patch files in the .hg/patches
 directory.  Applied patches are both patch files and changesets.
 
 Common tasks (use "hg help command" for more details):
 
 prepare repository to work with patches   qinit
 create new patch                          qnew
 import existing patch                     qimport
 
 print patch series                        qseries
 print applied patches                     qapplied
 print name of top applied patch           qtop
 
 add known patch to applied stack          qpush
 remove patch from applied stack           qpop
 refresh contents of top applied patch     qrefresh
 
 list of commands:
 
  qapplied     print the patches already applied
  qclone       clone main and patch repository at same time
  qcommit      commit changes in the queue repository
  qdelete      remove patches from queue
  qdiff        diff of the current patch and subsequent modifications
  qfinish      move applied patches into repository history
  qfold        fold the named patches into the current patch
  qgoto        push or pop patches until named patch is at top of stack
  qguard       set or print guards for a patch
  qheader      Print the header of the topmost or specified patch
  qimport      import a patch
  qinit        init a new queue repository
  qnew         create a new patch
  qnext        print the name of the next patch
  qpop         pop the current patch off the stack
  qprev        print the name of the previous patch
  qpush        push the next patch onto the stack
  qrefresh     update the current patch
  qrename      rename a patch
  qrestore     restore the queue state saved by a rev
  qsave        save current queue state
  qselect      set or print guarded patches to push
  qseries      print the entire series file
  qtop         print the name of the current patch
  qunapplied   print the patches not yet applied
  strip        strip a revision and all its descendants from the repository
 
+enabled extensions:
+
+ mq   patch management and development
+
 use "hg -v help mq" to show aliases and global options
 adding a
 updating working directory
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 adding b/z
 % qinit
 % -R qinit
 % qinit -c
 A .hgignore
 A series
 % qnew should refuse bad patch names
 abort: "series" cannot be used as the name of a patch
 abort: "status" cannot be used as the name of a patch
 abort: "guards" cannot be used as the name of a patch
 abort: ".hgignore" cannot be used as the name of a patch
 % qnew implies add
 A .hgignore
 A series
 A test.patch
 % qinit; qinit -c
   .hgignore:
 ^\.hg
 ^\.mq
 syntax: glob
 status
 guards
   series:
 abort: repository already exists!
 % qinit; <stuff>; qinit -c
 adding .hg/patches/A
 adding .hg/patches/B
 A .hgignore
 A A
 A B
 A series
   .hgignore:
 status
 bleh
   series:
 A
 B
 % qnew with uncommitted changes
 abort: local changes found, refresh first
 A somefile
 % qnew with uncommitted changes and missing file (issue 803)
 someotherfile: No such file or directory
 someotherfile: No such file or directory
 A somefile
 issue803.patch
 Patch queue now empty
 % qnew -m
 foo bar
 % qrefresh
 foo bar
 
 diff -r  xa
 --- a/a
 +++ b/a
 @@ -1,1 +1,2 @@
  a
 +a
 % empty qrefresh
 revision:
 patch:
 foo bar
 
 working dir diff:
 --- a/a
 +++ b/a
 @@ -1,1 +1,2 @@
  a
 +a
 % qpop
 Patch queue now empty
 % qpush
 applying test.patch
 Now at: test.patch
 % pop/push outside repo
 Patch queue now empty
 applying test.patch
 Now at: test.patch
 % qrefresh in subdir
 % pop/push -a in subdir
 Patch queue now empty
 applying test.patch
 applying test2.patch
 Now at: test2.patch
 % qseries
 test.patch
 test2.patch
 Now at: test.patch
 0 A test.patch: foo bar
 1 U test2.patch: 
 applying test2.patch
 Now at: test2.patch
 % qapplied
 test.patch
 test2.patch
 % qtop
 test2.patch
 % qprev
 test.patch
 % qnext
 All patches applied
 % pop, qnext, qprev, qapplied
 Now at: test.patch
 test2.patch
 Only one patch applied
 test.patch
 % commit should fail
 abort: cannot commit over an applied mq patch
 % push should fail
 pushing to ../../k
 abort: source has mq patches applied
 % qunapplied
 test2.patch
 % qpush/qpop with index
 applying test2.patch
 Now at: test2.patch
 Now at: test.patch
 applying test1b.patch
 Now at: test1b.patch
 applying test2.patch
 Now at: test2.patch
 Now at: test1b.patch
 Now at: test.patch
 applying test1b.patch
 applying test2.patch
 Now at: test2.patch
 % push should succeed
 Patch queue now empty
 pushing to ../../k
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 % qpush/qpop error codes
 applying test.patch
 applying test1b.patch
 applying test2.patch
 Now at: test2.patch
   % pops all patches and succeeds
 Patch queue now empty
   qpop -a succeeds
   % does nothing and succeeds
 no patches applied
   qpop -a succeeds
   % fails - nothing else to pop
 no patches applied
   qpop fails
   % pushes a patch and succeeds
 applying test.patch
 Now at: test.patch
   qpush succeeds
   % pops a patch and succeeds
 Patch queue now empty
   qpop succeeds
   % pushes up to test1b.patch and succeeds
 applying test.patch
 applying test1b.patch
 Now at: test1b.patch
   qpush test1b.patch succeeds
   % does nothing and succeeds
 qpush: test1b.patch is already at the top
   qpush test1b.patch succeeds
   % does nothing and succeeds
 qpop: test1b.patch is already at the top
   qpop test1b.patch succeeds
   % fails - can't push to this patch
 abort: cannot push to a previous patch: test.patch
   qpush test.patch fails
   % fails - can't pop to this patch
 abort: patch test2.patch is not applied
   qpop test2.patch fails
   % pops up to test.patch and succeeds
 Now at: test.patch
   qpop test.patch succeeds
   % pushes all patches and succeeds
 applying test1b.patch
 applying test2.patch
 Now at: test2.patch
   qpush -a succeeds
   % does nothing and succeeds
 all patches are currently applied
   qpush -a succeeds
   % fails - nothing else to push
 patch series already fully applied
   qpush fails
   % does nothing and succeeds
 all patches are currently applied
   qpush test2.patch succeeds
 % strip
 adding x
 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 saving bundle to 
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 (run 'hg update' to get a working copy)
 % strip with local changes, should complain
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 abort: local changes found
 % --force strip with local changes
 0 files updated, 0 files merged, 2 files removed, 0 files unresolved
 saving bundle to 
 % cd b; hg qrefresh
 adding a
 foo
 
 diff -r cb9a9f314b8b a
 --- a/a
 +++ b/a
 @@ -1,1 +1,2 @@
  a
 +a
 diff -r cb9a9f314b8b b/f
 --- /dev/null
 +++ b/b/f
 @@ -0,0 +1,1 @@
 +f
 % hg qrefresh .
 foo
 
 diff -r cb9a9f314b8b b/f
 --- /dev/null
 +++ b/b/f
 @@ -0,0 +1,1 @@
 +f
 M a
 % qpush failure
 Patch queue now empty
 applying foo
 applying bar
 file foo already exists
 1 out of 1 hunks FAILED -- saving rejects to file foo.rej
 patch failed, unable to continue (try -v)
 patch failed, rejects left in working dir
 Errors during apply, please fix and refresh bar
 ? foo
 ? foo.rej
 % mq tags
 0 qparent
 1 qbase foo
 2 qtip bar tip
 % bad node in status
 Now at: foo
 changeset:   0:cb9a9f314b8b
 mq status file refers to unknown node
 tag:         tip
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     a
 
 mq status file refers to unknown node
 default                        0:cb9a9f314b8b
 abort: working directory revision is not qtip
 new file
 
 diff --git a/new b/new
 new file mode 100755
 --- /dev/null
 +++ b/new
 @@ -0,0 +1,1 @@
 +foo
 copy file
 
 diff --git a/new b/copy
 copy from new
 copy to copy
 Now at: new
 applying copy
 Now at: copy
 diff --git a/new b/copy
 copy from new
 copy to copy
 diff --git a/new b/copy
 copy from new
 copy to copy
 1 files updated, 0 files merged, 2 files removed, 0 files unresolved
 created new head
 2 files updated, 0 files merged, 1 files removed, 0 files unresolved
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 Patch queue now empty
 (working directory not at tip)
 applying bar
 Now at: bar
 diff --git a/bar b/bar
 new file mode 100644
 --- /dev/null
 +++ b/bar
 @@ -0,0 +1,1 @@
 +bar
 diff --git a/foo b/baz
 rename from foo
 rename to baz
 2 baz (foo)
 diff --git a/bar b/bar
 new file mode 100644
 --- /dev/null
 +++ b/bar
 @@ -0,0 +1,1 @@
 +bar
 diff --git a/foo b/baz
 rename from foo
 rename to baz
 2 baz (foo)
 diff --git a/bar b/bar
 diff --git a/foo b/baz
 
 1 files updated, 0 files merged, 2 files removed, 0 files unresolved
 2 files updated, 0 files merged, 1 files removed, 0 files unresolved
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 Patch queue now empty
 (working directory not at tip)
 applying bar
 Now at: bar
 diff --git a/foo b/bleh
 rename from foo
 rename to bleh
 diff --git a/quux b/quux
 new file mode 100644
 --- /dev/null
 +++ b/quux
 @@ -0,0 +1,1 @@
 +bar
 3 bleh (foo)
 diff --git a/foo b/barney
 rename from foo
 rename to barney
 diff --git a/fred b/fred
 new file mode 100644
 --- /dev/null
 +++ b/fred
 @@ -0,0 +1,1 @@
 +bar
 3 barney (foo)
 % refresh omitting an added file
 C newfile
 A newfile
 Now at: bar
 % create a git patch
 diff --git a/alexander b/alexander
 % create a git binary patch
 8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
 diff --git a/bucephalus b/bucephalus
 % check binary patches can be popped and pushed
 Now at: addalexander
 applying addbucephalus
 Now at: addbucephalus
 8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
 % strip again
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 created new head
 merging foo
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 changeset:   3:99615015637b
 tag:         tip
 parent:      2:20cbbe65cff7
 parent:      1:d2871fc282d4
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     merge
 
 changeset:   2:20cbbe65cff7
 parent:      0:53245c60e682
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     change foo 2
 
 changeset:   1:d2871fc282d4
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     change foo 1
 
 changeset:   0:53245c60e682
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     add foo
 
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 saving bundle to 
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 changeset:   1:20cbbe65cff7
 tag:         tip
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     change foo 2
 
 changeset:   0:53245c60e682
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     add foo
 
 % qclone
 abort: versioned patch repository not found (see qinit -c)
 adding .hg/patches/patch1
 main repo:
     rev 1: change foo
     rev 0: add foo
 patch repo:
     rev 0: checkpoint
 updating working directory
 3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 main repo:
     rev 0: add foo
 patch repo:
     rev 0: checkpoint
 Patch queue now empty
 main repo:
     rev 0: add foo
 patch repo:
     rev 0: checkpoint
 updating working directory
 3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 main repo:
     rev 0: add foo
 patch repo:
     rev 0: checkpoint
 % test applying on an empty file (issue 1033)
 adding a
 Patch queue now empty
 applying changea
 Now at: changea
 % test qpush with --force, issue1087
 adding bye.txt
 adding hello.txt
 Patch queue now empty
 % qpush should fail, local changes
 abort: local changes found, refresh first
 % apply force, should not discard changes with empty patch
 applying empty
 patch: **** Only garbage was found in the patch input.
 patch failed, unable to continue (try -v)
 patch empty is empty
 Now at: empty
 diff -r bf5fc3f07a0a hello.txt
 --- a/hello.txt
 +++ b/hello.txt
 @@ -1,1 +1,2 @@
  hello
 +world
 diff -r 9ecee4f634e3 hello.txt
 --- a/hello.txt
 +++ b/hello.txt
 @@ -1,1 +1,2 @@
  hello
 +world
 changeset:   1:bf5fc3f07a0a
 tag:         qtip
 tag:         tip
 tag:         empty
 tag:         qbase
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     imported patch empty
 
 
 Patch queue now empty
 % qpush should fail, local changes
 abort: local changes found, refresh first
 % apply force, should discard changes in hello, but not bye
 applying empty
 Now at: empty
 M bye.txt
 diff -r ba252371dbc1 bye.txt
 --- a/bye.txt
 +++ b/bye.txt
 @@ -1,1 +1,2 @@
  bye
 +universe
 diff -r 9ecee4f634e3 bye.txt
 --- a/bye.txt
 +++ b/bye.txt
 @@ -1,1 +1,2 @@
  bye
 +universe
 diff -r 9ecee4f634e3 hello.txt
 --- a/hello.txt
 +++ b/hello.txt
 @@ -1,1 +1,3 @@
  hello
 +world
 +universe

tests/test-notify.out

@@ -1,107 +1,164
-notify extension - No help text available
+notify extension - hook extension to email notifications on commits/pushes
+
+Subscriptions can be managed through hgrc. Default mode is to print
+messages to stdout, for testing and configuring.
+
+To use, configure notify extension and enable in hgrc like this:
+
+   [extensions]
+   hgext.notify =
+
+   [hooks]
+   # one email for each incoming changeset
+   incoming.notify = python:hgext.notify.hook
+   # batch emails when many changesets incoming at one time
+   changegroup.notify = python:hgext.notify.hook
+
+   [notify]
+   # config items go in here
+
+ config items:
+
+ REQUIRED:
+   config = /path/to/file # file containing subscriptions
+
+ OPTIONAL:
+   test = True            # print messages to stdout for testing
+   strip = 3              # number of slashes to strip for url paths
+   domain = example.com   # domain to use if committer missing domain
+   style = ...            # style file to use when formatting email
+   template = ...         # template to use when formatting email
+   incoming = ...         # template to use when run as incoming hook
+   changegroup = ...      # template when run as changegroup hook
+   maxdiff = 300          # max lines of diffs to include (0=none, -1=all)
+   maxsubject = 67        # truncate subject line longer than this
+   diffstat = True        # add a diffstat before the diff content
+   sources = serve        # notify if source of incoming changes in this list
+                          # (serve == ssh or http, push, pull, bundle)
+   [email]
+   from = [e-mail]   # email address to send as if none given
+   [web]
+   baseurl = http://hgserver/... # root of hg web site for browsing commits
+
+ notify config file has same format as regular hgrc. it has two
+ sections so you can express subscriptions in whatever way is handier
+ for you.
+
+   [usersubs]
+   # key is subscriber email, value is ","-separated list of glob patterns
+   user@host = pattern
+
+   [reposubs]
+   # key is glob pattern, value is ","-separated list of subscriber emails
+   pattern = user@host
+
+ glob patterns are matched against path to repo root.
+
+ if you like, you can put notify config file in repo that users can
+ push changes to, they can manage their own subscriptions.
 
 no commands defined
 % commit
 adding a
 % clone
 updating working directory
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 % commit
 % pull (minimal config)
 pulling from ../a
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 Content-Type: text/plain; charset="us-ascii"
 MIME-Version: 1.0
 Content-Transfer-Encoding: 7bit
 Date:
 Subject: changeset in test-notify/b: b
 From: test
 X-Hg-Notification: changeset 0647d048b600
 Message-Id:
 To: baz, foo@bar
 
 changeset 0647d048b600 in test-notify/b
 details: test-notify/b?cmd=changeset;node=0647d048b600
 description: b
 
 diffs (6 lines):
 
 diff -r cb9a9f314b8b -r 0647d048b600 a
 --- a/a	Thu Jan 01 00:00:00 1970 +0000
 +++ b/a	Thu Jan 01 00:00:01 1970 +0000
 @@ -1,1 +1,2 @@
  a
 +a
 (run 'hg update' to get a working copy)
 % fail for config file is missing
 rolling back last transaction
 pull failed
 % pull
 rolling back last transaction
 pulling from ../a
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 Content-Type: text/plain; charset="us-ascii"
 MIME-Version: 1.0
 Content-Transfer-Encoding: 7bit
 Date:
 Subject: b
 From: [e-mail]
 X-Hg-Notification: changeset 0647d048b600
 Message-Id:
 To: [e-mail], foo@bar
 
 changeset 0647d048b600
 description:
 	b
 diffs (6 lines):
 
 diff -r cb9a9f314b8b -r 0647d048b600 a
 --- a/a	Thu Jan 01 00:00:00 1970 +0000
 +++ b/a	Thu Jan 01 00:00:01 1970 +0000
 @@ -1,1 +1,2 @@
  a
 +a
 (run 'hg update' to get a working copy)
 % pull
 rolling back last transaction
 pulling from ../a
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 Content-Type: text/plain; charset="us-ascii"
 MIME-Version: 1.0
 Content-Transfer-Encoding: 7bit
 Date:
 Subject: b
 From: [e-mail]
 X-Hg-Notification: changeset 0647d048b600
 Message-Id:
 To: [e-mail], foo@bar
 
 changeset 0647d048b600
 description:
 	b
 diffstat:
 
 1 file changed, 1 insertion(+)
 a |    1 +
 
 diffs (6 lines):
 
 diff -r cb9a9f314b8b -r 0647d048b600 a
 --- a/a	Thu Jan 01 00:00:00 1970 +0000
 +++ b/a	Thu Jan 01 00:00:01 1970 +0000
 @@ -1,1 +1,2 @@
  a
 +a
 (run 'hg update' to get a working copy)

tests/test-qrecord.out

@@ -1,207 +1,211
 % help (no mq, so no qrecord)
 hg: unknown command 'qrecord'
 Mercurial Distributed SCM
 
 basic commands:
 
  add        add the specified files on the next commit
  annotate   show changeset information per file line
  clone      make a copy of an existing repository
  commit     commit the specified files or all outstanding changes
  diff       diff repository (or selected files)
  export     dump the header and diffs for one or more changesets
  init       create a new repository in the given directory
  log        show revision history of entire repository or files
  merge      merge working directory with another revision
  parents    show the parents of the working dir or revision
  pull       pull changes from the specified source
  push       push changes to the specified destination
  remove     remove the specified files on the next commit
  serve      export the repository via HTTP
  status     show changed files in the working directory
  update     update working directory
 
+enabled extensions:
+
+ record   interactive change selection during commit or qrefresh
+
 use "hg help" for the full list of commands or "hg -v" for details
 % help (mq present)
 hg qrecord [OPTION]... PATCH [FILE]...
 
 interactively record a new patch
 
     see 'hg help qnew' & 'hg help record' for more information and usage
 
 options:
 
  -e --edit         edit commit message
  -g --git          use git extended diff format
  -U --currentuser  add "From: <current user>" to patch
  -u --user         add "From: <given user>" to patch
  -D --currentdate  add "Date: <current date>" to patch
  -d --date         add "Date: <given date>" to patch
  -I --include      include names matching the given patterns
  -X --exclude      exclude names matching the given patterns
  -m --message      use <text> as commit message
  -l --logfile      read commit message from <file>
 
 use "hg -v help qrecord" to show global options
 % base commit
 % changing files
 % whole diff
 diff -r 1057167b20ef 1.txt
 --- a/1.txt
 +++ b/1.txt
 @@ -1,5 +1,5 @@
  1
 -2
 +2 2
  3
 -4
 +4 4
  5
 diff -r 1057167b20ef 2.txt
 --- a/2.txt
 +++ b/2.txt
 @@ -1,5 +1,5 @@
  a
 -b
 +b b
  c
  d
  e
 diff -r 1057167b20ef dir/a.txt
 --- a/dir/a.txt
 +++ b/dir/a.txt
 @@ -1,4 +1,4 @@
 -hello world
 +hello world!
  
  someone
  up
 % qrecord a.patch
 diff --git a/1.txt b/1.txt
 2 hunks, 4 lines changed
 examine changes to '1.txt'? [Ynsfdaq?]  @@ -1,3 +1,3 @@
  1
 -2
 +2 2
  3
 record this change to '1.txt'? [Ynsfdaq?]  @@ -3,3 +3,3 @@
  3
 -4
 +4 4
  5
 record this change to '1.txt'? [Ynsfdaq?]  diff --git a/2.txt b/2.txt
 1 hunks, 2 lines changed
 examine changes to '2.txt'? [Ynsfdaq?]  @@ -1,5 +1,5 @@
  a
 -b
 +b b
  c
  d
  e
 record this change to '2.txt'? [Ynsfdaq?]  diff --git a/dir/a.txt b/dir/a.txt
 1 hunks, 2 lines changed
 examine changes to 'dir/a.txt'? [Ynsfdaq?]  
 % after qrecord a.patch 'tip'
 changeset:   1:5d1ca63427ee
 tag:         qtip
 tag:         tip
 tag:         a.patch
 tag:         qbase
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     aaa
 
 diff -r 1057167b20ef -r 5d1ca63427ee 1.txt
 --- a/1.txt	Thu Jan 01 00:00:00 1970 +0000
 +++ b/1.txt	Thu Jan 01 00:00:00 1970 +0000
 @@ -1,5 +1,5 @@
  1
 -2
 +2 2
  3
  4
  5
 diff -r 1057167b20ef -r 5d1ca63427ee 2.txt
 --- a/2.txt	Thu Jan 01 00:00:00 1970 +0000
 +++ b/2.txt	Thu Jan 01 00:00:00 1970 +0000
 @@ -1,5 +1,5 @@
  a
 -b
 +b b
  c
  d
  e
 
 
 % after qrecord a.patch 'diff'
 diff -r 5d1ca63427ee 1.txt
 --- a/1.txt
 +++ b/1.txt
 @@ -1,5 +1,5 @@
  1
  2 2
  3
 -4
 +4 4
  5
 diff -r 5d1ca63427ee dir/a.txt
 --- a/dir/a.txt
 +++ b/dir/a.txt
 @@ -1,4 +1,4 @@
 -hello world
 +hello world!
  
  someone
  up
 % qrecord b.patch
 diff --git a/1.txt b/1.txt
 1 hunks, 2 lines changed
 examine changes to '1.txt'? [Ynsfdaq?]  @@ -1,5 +1,5 @@
  1
  2 2
  3
 -4
 +4 4
  5
 record this change to '1.txt'? [Ynsfdaq?]  diff --git a/dir/a.txt b/dir/a.txt
 1 hunks, 2 lines changed
 examine changes to 'dir/a.txt'? [Ynsfdaq?]  @@ -1,4 +1,4 @@
 -hello world
 +hello world!
  
  someone
  up
 record this change to 'dir/a.txt'? [Ynsfdaq?]  
 % after qrecord b.patch 'tip'
 changeset:   2:b056198bf878
 tag:         qtip
 tag:         tip
 tag:         b.patch
 user:        test
 date:        Thu Jan 01 00:00:00 1970 +0000
 summary:     bbb
 
 diff -r 5d1ca63427ee -r b056198bf878 1.txt
 --- a/1.txt	Thu Jan 01 00:00:00 1970 +0000
 +++ b/1.txt	Thu Jan 01 00:00:00 1970 +0000
 @@ -1,5 +1,5 @@
  1
  2 2
  3
 -4
 +4 4
  5
 diff -r 5d1ca63427ee -r b056198bf878 dir/a.txt
 --- a/dir/a.txt	Thu Jan 01 00:00:00 1970 +0000
 +++ b/dir/a.txt	Thu Jan 01 00:00:00 1970 +0000
 @@ -1,4 +1,4 @@
 -hello world
 +hello world!
  
  someone
  up
 
 
 % after qrecord b.patch 'diff'
 
 % --- end ---

tests/test-rebase-parameters

@@ -1,105 +1,108
 #!/bin/sh
 
 echo "[extensions]" >> $HGRCPATH
 echo "rebase=" >> $HGRCPATH
 
 addcommit () {
     echo $1 > $1
     hg add $1
     hg commit -d "${2} 0" -u test -m $1
 }
 
 commit () {
     hg commit -d "${2} 0" -u test -m $1
 }
 
 createrepo () {
     hg init a
     cd a
     addcommit "c1" 0
     addcommit "c2" 1
     addcommit "c3" 2
 
     hg update -C 1
     addcommit "l1" 3
     addcommit "l2" 4
     addcommit "l3" 5
 
     hg update -C 2
     addcommit "r1" 6
     addcommit "r2" 7
 }
 
 createrepo > /dev/null 2>&1
 echo "% These fail"
 echo
 echo "% Use continue and abort"
 hg rebase --continue --abort
 
 echo
 echo "% Use continue and collapse"
 hg rebase --continue --collapse
 
 echo
 echo "% Use continue/abort and dest/source"
 hg rebase --continue --dest 4
 
 echo
 echo "% Use source and base"
 hg rebase --base 5 --source 4
 
 echo
 echo "% Rebase with no arguments - from current"
 hg rebase
 
 echo
 echo "% Rebase with no arguments - from the current branch"
 hg update 6
 hg rebase
 
 echo "% ----------"
 echo "% These work"
 echo
 echo "% Rebase with no arguments (from 3 onto 7)"
 hg update -C 5
 hg rebase 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
+echo "% Try to rollback after a rebase (fail)"
+hg rollback
+
 createrepo > /dev/null 2>&1
 echo
 echo "% Rebase with base == '.' => same as no arguments (from 3 onto 7)"
 hg update -C 5
 hg rebase --base . 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Rebase with dest == `hg branch` => same as no arguments (from 3 onto 7)"
 hg update -C 5
 hg rebase --dest `hg branch` 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Specify only source (from 4 onto 7)"
 hg rebase --source 4 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Specify only dest (from 3 onto 6)"
 hg update -C 5
 hg rebase --dest 6 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Specify only base (from 3 onto 7)"
 hg rebase --base 5 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Specify source and dest (from 4 onto 6)"
 hg rebase --source 4 --dest 6 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 createrepo > /dev/null 2>&1
 echo
 echo "% Specify base and dest (from 3 onto 6)"
 hg rebase --base 4 --dest 6 2>&1 | sed 's/\(saving bundle to \).*/\1/'
 
 exit 0

tests/test-rebase-parameters.out

@@ -1,194 +1,196
 % These fail
 
 % Use continue and abort
 hg rebase: cannot use both abort and continue
 hg rebase [-s rev | -b rev] [-d rev] [--collapse] | [-c] | [-a] | [--keep]
 
 move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of history
     onto another. This can be useful for linearizing local changes relative to
     a master development tree.
 
     If a rebase is interrupted to manually resolve a merge, it can be continued
     with --continue or aborted with --abort.
 
 options:
 
     --keep      keep original revisions
  -s --source    rebase from a given revision
  -b --base      rebase from the base of a given revision
  -d --dest      rebase onto a given revision
     --collapse  collapse the rebased revisions
  -c --continue  continue an interrupted rebase
  -a --abort     abort an interrupted rebase
     --style     display using template map file
     --template  display with template
 
 use "hg -v help rebase" to show global options
 
 % Use continue and collapse
 hg rebase: cannot use collapse with continue or abort
 hg rebase [-s rev | -b rev] [-d rev] [--collapse] | [-c] | [-a] | [--keep]
 
 move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of history
     onto another. This can be useful for linearizing local changes relative to
     a master development tree.
 
     If a rebase is interrupted to manually resolve a merge, it can be continued
     with --continue or aborted with --abort.
 
 options:
 
     --keep      keep original revisions
  -s --source    rebase from a given revision
  -b --base      rebase from the base of a given revision
  -d --dest      rebase onto a given revision
     --collapse  collapse the rebased revisions
  -c --continue  continue an interrupted rebase
  -a --abort     abort an interrupted rebase
     --style     display using template map file
     --template  display with template
 
 use "hg -v help rebase" to show global options
 
 % Use continue/abort and dest/source
 hg rebase: abort and continue do not allow specifying revisions
 hg rebase [-s rev | -b rev] [-d rev] [--collapse] | [-c] | [-a] | [--keep]
 
 move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of history
     onto another. This can be useful for linearizing local changes relative to
     a master development tree.
 
     If a rebase is interrupted to manually resolve a merge, it can be continued
     with --continue or aborted with --abort.
 
 options:
 
     --keep      keep original revisions
  -s --source    rebase from a given revision
  -b --base      rebase from the base of a given revision
  -d --dest      rebase onto a given revision
     --collapse  collapse the rebased revisions
  -c --continue  continue an interrupted rebase
  -a --abort     abort an interrupted rebase
     --style     display using template map file
     --template  display with template
 
 use "hg -v help rebase" to show global options
 
 % Use source and base
 hg rebase: cannot specify both a revision and a base
 hg rebase [-s rev | -b rev] [-d rev] [--collapse] | [-c] | [-a] | [--keep]
 
 move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of history
     onto another. This can be useful for linearizing local changes relative to
     a master development tree.
 
     If a rebase is interrupted to manually resolve a merge, it can be continued
     with --continue or aborted with --abort.
 
 options:
 
     --keep      keep original revisions
  -s --source    rebase from a given revision
  -b --base      rebase from the base of a given revision
  -d --dest      rebase onto a given revision
     --collapse  collapse the rebased revisions
  -c --continue  continue an interrupted rebase
  -a --abort     abort an interrupted rebase
     --style     display using template map file
     --template  display with template
 
 use "hg -v help rebase" to show global options
 
 % Rebase with no arguments - from current
 nothing to rebase
 
 % Rebase with no arguments - from the current branch
 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 nothing to rebase
 % ----------
 % These work
 
 % Rebase with no arguments (from 3 onto 7)
 3 files updated, 0 files merged, 2 files removed, 0 files unresolved
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files
 rebase completed
+% Try to rollback after a rebase (fail)
+no rollback information available
 
 % Rebase with base == '.' => same as no arguments (from 3 onto 7)
 3 files updated, 0 files merged, 3 files removed, 0 files unresolved
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files
 rebase completed
 
 % Rebase with dest == default => same as no arguments (from 3 onto 7)
 3 files updated, 0 files merged, 3 files removed, 0 files unresolved
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files
 rebase completed
 
 % Specify only source (from 4 onto 7)
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 4 changesets with 4 changes to 4 files (-1 heads)
 rebase completed
 
 % Specify only dest (from 3 onto 6)
 3 files updated, 0 files merged, 3 files removed, 0 files unresolved
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files (+1 heads)
 rebase completed
 
 % Specify only base (from 3 onto 7)
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files
 rebase completed
 
 % Specify source and dest (from 4 onto 6)
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 4 changesets with 4 changes to 4 files
 rebase completed
 
 % Specify base and dest (from 3 onto 6)
 saving bundle to 
 adding branch
 adding changesets
 adding manifests
 adding file changes
 added 5 changesets with 5 changes to 5 files (+1 heads)
 rebase completed