evolution: rename divergent to content-divergent

Rename divergent to content-divergent in all external user-facing output. Only
update user-facing output for the moment, variables names, templates keyword
and potentially configuration would be done in later series.

The renaming is done according to
https://www.mercurial-scm.org/wiki/CEDVocabulary.

Differential Revision: https://phab.mercurial-scm.org/D215

mercurial/commands.py

@@ -1,5444 +1,5444 b''
 # commands.py - command processing for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import difflib
 import errno
 import os
 import re
 import sys
 
 from .i18n import _
 from .node import (
     hex,
     nullid,
     nullrev,
     short,
 )
 from . import (
     archival,
     bookmarks,
     bundle2,
     changegroup,
     cmdutil,
     copies,
     debugcommands as debugcommandsmod,
     destutil,
     dirstateguard,
     discovery,
     encoding,
     error,
     exchange,
     extensions,
     formatter,
     graphmod,
     hbisect,
     help,
     hg,
     lock as lockmod,
     merge as mergemod,
     obsolete,
     patch,
     phases,
     pycompat,
     rcutil,
     registrar,
     revsetlang,
     scmutil,
     server,
     sshserver,
     streamclone,
     tags as tagsmod,
     templatekw,
     ui as uimod,
     util,
 )
 
 release = lockmod.release
 
 table = {}
 table.update(debugcommandsmod.command._table)
 
 command = registrar.command(table)
 
 # common command options
 
 globalopts = [
     ('R', 'repository', '',
      _('repository root directory or name of overlay bundle file'),
      _('REPO')),
     ('', 'cwd', '',
      _('change working directory'), _('DIR')),
     ('y', 'noninteractive', None,
      _('do not prompt, automatically pick the first choice for all prompts')),
     ('q', 'quiet', None, _('suppress output')),
     ('v', 'verbose', None, _('enable additional output')),
     ('', 'color', '',
      # i18n: 'always', 'auto', 'never', and 'debug' are keywords
      # and should not be translated
      _("when to colorize (boolean, always, auto, never, or debug)"),
      _('TYPE')),
     ('', 'config', [],
      _('set/override config option (use \'section.name=value\')'),
      _('CONFIG')),
     ('', 'debug', None, _('enable debugging output')),
     ('', 'debugger', None, _('start debugger')),
     ('', 'encoding', encoding.encoding, _('set the charset encoding'),
      _('ENCODE')),
     ('', 'encodingmode', encoding.encodingmode,
      _('set the charset encoding mode'), _('MODE')),
     ('', 'traceback', None, _('always print a 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')),
     ('', 'hidden', False, _('consider hidden changesets')),
     ('', 'pager', 'auto',
      _("when to paginate (boolean, always, auto, or never)"), _('TYPE')),
 ]
 
 dryrunopts = cmdutil.dryrunopts
 remoteopts = cmdutil.remoteopts
 walkopts = cmdutil.walkopts
 commitopts = cmdutil.commitopts
 commitopts2 = cmdutil.commitopts2
 formatteropts = cmdutil.formatteropts
 templateopts = cmdutil.templateopts
 logopts = cmdutil.logopts
 diffopts = cmdutil.diffopts
 diffwsopts = cmdutil.diffwsopts
 diffopts2 = cmdutil.diffopts2
 mergetoolopts = cmdutil.mergetoolopts
 similarityopts = cmdutil.similarityopts
 subrepoopts = cmdutil.subrepoopts
 debugrevlogopts = cmdutil.debugrevlogopts
 
 # Commands start here, listed alphabetically
 
 @command('^add',
     walkopts + subrepoopts + dryrunopts,
     _('[OPTION]... [FILE]...'),
     inferrepo=True)
 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:`forget`.
 
     If no names are given, add all files to the repository (except
     files matching ``.hgignore``).
 
     .. container:: verbose
 
        Examples:
 
          - New (unknown) files are added
            automatically by :hg:`add`::
 
              $ ls
              foo.c
              $ hg status
              ? foo.c
              $ hg add
              adding foo.c
              $ hg status
              A foo.c
 
          - Specific files to be added can be specified::
 
              $ ls
              bar.c  foo.c
              $ hg status
              ? bar.c
              ? foo.c
              $ hg add bar.c
              $ hg status
              A bar.c
              ? foo.c
 
     Returns 0 if all files are successfully added.
     """
 
     m = scmutil.match(repo[None], pats, pycompat.byteskwargs(opts))
     rejected = cmdutil.add(ui, repo, m, "", False, **opts)
     return rejected and 1 or 0
 
 @command('addremove',
     similarityopts + subrepoopts + walkopts + dryrunopts,
     _('[OPTION]... [FILE]...'),
     inferrepo=True)
 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.
 
     Unless names are given, 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/--similarity option to detect renamed files. This
     option takes a percentage between 0 (disabled) and 100 (files must
     be identical) as its parameter. With a parameter greater than 0,
     this compares every removed file with every added file and records
     those similar enough as renames. Detecting renamed files this way
     can be expensive. After using this option, :hg:`status -C` can be
     used to check which files were identified as moved or renamed. If
     not specified, -s/--similarity defaults to 100 and only renames of
     identical files are detected.
 
     .. container:: verbose
 
        Examples:
 
          - A number of files (bar.c and foo.c) are new,
            while foobar.c has been removed (without using :hg:`remove`)
            from the repository::
 
              $ ls
              bar.c foo.c
              $ hg status
              ! foobar.c
              ? bar.c
              ? foo.c
              $ hg addremove
              adding bar.c
              adding foo.c
              removing foobar.c
              $ hg status
              A bar.c
              A foo.c
              R foobar.c
 
          - A file foobar.c was moved to foo.c without using :hg:`rename`.
            Afterwards, it was edited slightly::
 
              $ ls
              foo.c
              $ hg status
              ! foobar.c
              ? foo.c
              $ hg addremove --similarity 90
              removing foobar.c
              adding foo.c
              recording removal of foobar.c as rename to foo.c (94% similar)
              $ hg status -C
              A foo.c
                foobar.c
              R foobar.c
 
     Returns 0 if all files are successfully added.
     """
     opts = pycompat.byteskwargs(opts)
     try:
         sim = float(opts.get('similarity') or 100)
     except ValueError:
         raise error.Abort(_('similarity must be a number'))
     if sim < 0 or sim > 100:
         raise error.Abort(_('similarity must be between 0 and 100'))
     matcher = scmutil.match(repo[None], pats, opts)
     return scmutil.addremove(repo, matcher, "", opts, similarity=sim / 100.0)
 
 @command('^annotate|blame',
     [('r', 'rev', '', _('annotate the specified revision'), _('REV')),
     ('', 'follow', None,
      _('follow copies/renames and list the filename (DEPRECATED)')),
     ('', 'no-follow', None, _("don't follow copies and renames")),
     ('a', 'text', None, _('treat all files as text')),
     ('u', 'user', None, _('list the author (long with -v)')),
     ('f', 'file', None, _('list the filename')),
     ('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')),
     ('', 'skip', [], _('revision to not display (EXPERIMENTAL)'), _('REV')),
     ] + diffwsopts + walkopts + formatteropts,
     _('[-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...'),
     inferrepo=True)
 def annotate(ui, repo, *pats, **opts):
     """show changeset information by line for each file
 
     List changes in files, showing the revision id responsible for
     each line.
 
     This command is useful for discovering when a change was made and
     by whom.
 
     If you include --file, --user, or --date, the revision number is
     suppressed unless you also include --number.
 
     Without the -a/--text option, annotate will avoid processing files
     it detects as binary. With -a, annotate will annotate the file
     anyway, although the results will probably be neither useful
     nor desirable.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     if not pats:
         raise error.Abort(_('at least one filename or pattern is required'))
 
     if opts.get('follow'):
         # --follow is deprecated and now just an alias for -f/--file
         # to mimic the behavior of Mercurial before version 1.5
         opts['file'] = True
 
     ctx = scmutil.revsingle(repo, opts.get('rev'))
 
     rootfm = ui.formatter('annotate', opts)
     if ui.quiet:
         datefunc = util.shortdate
     else:
         datefunc = util.datestr
     if ctx.rev() is None:
         def hexfn(node):
             if node is None:
                 return None
             else:
                 return rootfm.hexfunc(node)
         if opts.get('changeset'):
             # omit "+" suffix which is appended to node hex
             def formatrev(rev):
                 if rev is None:
                     return '%d' % ctx.p1().rev()
                 else:
                     return '%d' % rev
         else:
             def formatrev(rev):
                 if rev is None:
                     return '%d+' % ctx.p1().rev()
                 else:
                     return '%d ' % rev
         def formathex(hex):
             if hex is None:
                 return '%s+' % rootfm.hexfunc(ctx.p1().node())
             else:
                 return '%s ' % hex
     else:
         hexfn = rootfm.hexfunc
         formatrev = formathex = pycompat.bytestr
 
     opmap = [('user', ' ', lambda x: x[0].user(), ui.shortuser),
              ('number', ' ', lambda x: x[0].rev(), formatrev),
              ('changeset', ' ', lambda x: hexfn(x[0].node()), formathex),
              ('date', ' ', lambda x: x[0].date(), util.cachefunc(datefunc)),
              ('file', ' ', lambda x: x[0].path(), str),
              ('line_number', ':', lambda x: x[1], str),
             ]
     fieldnamemap = {'number': 'rev', 'changeset': 'node'}
 
     if (not opts.get('user') and not opts.get('changeset')
         and not opts.get('date') and not opts.get('file')):
         opts['number'] = True
 
     linenumber = opts.get('line_number') is not None
     if linenumber and (not opts.get('changeset')) and (not opts.get('number')):
         raise error.Abort(_('at least one of -n/-c is required for -l'))
 
     ui.pager('annotate')
 
     if rootfm.isplain():
         def makefunc(get, fmt):
             return lambda x: fmt(get(x))
     else:
         def makefunc(get, fmt):
             return get
     funcmap = [(makefunc(get, fmt), sep) for op, sep, get, fmt in opmap
                if opts.get(op)]
     funcmap[0] = (funcmap[0][0], '') # no separator in front of first column
     fields = ' '.join(fieldnamemap.get(op, op) for op, sep, get, fmt in opmap
                       if opts.get(op))
 
     def bad(x, y):
         raise error.Abort("%s: %s" % (x, y))
 
     m = scmutil.match(ctx, pats, opts, badfn=bad)
 
     follow = not opts.get('no_follow')
     diffopts = patch.difffeatureopts(ui, opts, section='annotate',
                                      whitespace=True)
     skiprevs = opts.get('skip')
     if skiprevs:
         skiprevs = scmutil.revrange(repo, skiprevs)
 
     for abs in ctx.walk(m):
         fctx = ctx[abs]
         rootfm.startitem()
         rootfm.data(abspath=abs, path=m.rel(abs))
         if not opts.get('text') and fctx.isbinary():
             rootfm.plain(_("%s: binary file\n")
                          % ((pats and m.rel(abs)) or abs))
             continue
 
         fm = rootfm.nested('lines')
         lines = fctx.annotate(follow=follow, linenumber=linenumber,
                               skiprevs=skiprevs, diffopts=diffopts)
         if not lines:
             fm.end()
             continue
         formats = []
         pieces = []
 
         for f, sep in funcmap:
             l = [f(n) for n, dummy in lines]
             if fm.isplain():
                 sizes = [encoding.colwidth(x) for x in l]
                 ml = max(sizes)
                 formats.append([sep + ' ' * (ml - w) + '%s' for w in sizes])
             else:
                 formats.append(['%s' for x in l])
             pieces.append(l)
 
         for f, p, l in zip(zip(*formats), zip(*pieces), lines):
             fm.startitem()
             fm.write(fields, "".join(f), *p)
             fm.write('line', ": %s", l[1])
 
         if not lines[-1][1].endswith('\n'):
             fm.plain('\n')
         fm.end()
 
     rootfm.end()
 
 @command('archive',
     [('', 'no-decode', None, _('do not pass files through decoders')),
     ('p', 'prefix', '', _('directory prefix for files in archive'),
      _('PREFIX')),
     ('r', 'rev', '', _('revision to distribute'), _('REV')),
     ('t', 'type', '', _('type of distribution to create'), _('TYPE')),
     ] + subrepoopts + walkopts,
     _('[OPTION]... DEST'))
 def archive(ui, repo, dest, **opts):
     '''create an unversioned archive of a repository revision
 
     By default, the revision used is the parent of the working
     directory; use -r/--rev to specify a different revision.
 
     The archive type is automatically detected based on file
     extension (to override, use -t/--type).
 
     .. container:: verbose
 
       Examples:
 
       - create a zip file containing the 1.0 release::
 
           hg archive -r 1.0 project-1.0.zip
 
       - create a tarball excluding .hg files::
 
           hg archive project.tar.gz -X ".hg*"
 
     Valid types are:
 
     :``files``: a directory full of files (default)
     :``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/--prefix to specify a format string for the
     prefix. The default is the basename of the archive, with suffixes
     removed.
 
     Returns 0 on success.
     '''
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get('rev'))
     if not ctx:
         raise error.Abort(_('no working directory: please specify a revision'))
     node = ctx.node()
     dest = cmdutil.makefilename(repo, dest, node)
     if os.path.realpath(dest) == repo.root:
         raise error.Abort(_('repository root cannot be destination'))
 
     kind = opts.get('type') or archival.guesskind(dest) or 'files'
     prefix = opts.get('prefix')
 
     if dest == '-':
         if kind == 'files':
             raise error.Abort(_('cannot archive plain files to stdout'))
         dest = cmdutil.makefileobj(repo, dest)
         if not prefix:
             prefix = os.path.basename(repo.root) + '-%h'
 
     prefix = cmdutil.makefilename(repo, prefix, node)
     matchfn = scmutil.match(ctx, [], opts)
     archival.archive(repo, dest, node, kind, not opts.get('no_decode'),
                      matchfn, prefix, subrepos=opts.get('subrepos'))
 
 @command('backout',
     [('', 'merge', None, _('merge with old dirstate parent after backout')),
     ('', 'commit', None,
      _('commit if no conflicts were encountered (DEPRECATED)')),
     ('', 'no-commit', None, _('do not commit')),
     ('', 'parent', '',
      _('parent to choose when backing out merge (DEPRECATED)'), _('REV')),
     ('r', 'rev', '', _('revision to backout'), _('REV')),
     ('e', 'edit', False, _('invoke editor on commit messages')),
     ] + mergetoolopts + walkopts + commitopts + commitopts2,
     _('[OPTION]... [-r] REV'))
 def backout(ui, repo, node=None, rev=None, **opts):
     '''reverse effect of earlier changeset
 
     Prepare a new changeset with the effect of REV undone in the
     current working directory. If no conflicts were encountered,
     it will be committed immediately.
 
     If REV is the parent of the working directory, then this new changeset
     is committed automatically (unless --no-commit is specified).
 
     .. note::
 
        :hg:`backout` cannot be used to fix either an unwanted or
        incorrect merge.
 
     .. container:: verbose
 
       Examples:
 
       - Reverse the effect of the parent of the working directory.
         This backout will be committed immediately::
 
           hg backout -r .
 
       - Reverse the effect of previous bad revision 23::
 
           hg backout -r 23
 
       - Reverse the effect of previous bad revision 23 and
         leave changes uncommitted::
 
           hg backout -r 23 --no-commit
           hg commit -m "Backout revision 23"
 
       By default, the pending changeset will have one parent,
       maintaining a linear history. With --merge, the pending
       changeset will instead have two parents: the old parent of the
       working directory and a new child of REV that simply undoes REV.
 
       Before version 1.7, the behavior without --merge was equivalent
       to specifying --merge followed by :hg:`update --clean .` to
       cancel the merge and leave the child of REV as a head to be
       merged separately.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     See :hg:`help revert` for a way to restore files to the state
     of another revision.
 
     Returns 0 on success, 1 if nothing to backout or there are unresolved
     files.
     '''
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         return _dobackout(ui, repo, node, rev, **opts)
     finally:
         release(lock, wlock)
 
 def _dobackout(ui, repo, node=None, rev=None, **opts):
     opts = pycompat.byteskwargs(opts)
     if opts.get('commit') and opts.get('no_commit'):
         raise error.Abort(_("cannot use --commit with --no-commit"))
     if opts.get('merge') and opts.get('no_commit'):
         raise error.Abort(_("cannot use --merge with --no-commit"))
 
     if rev and node:
         raise error.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if not rev:
         raise error.Abort(_("please specify a revision to backout"))
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     cmdutil.checkunfinished(repo)
     cmdutil.bailifchanged(repo)
     node = scmutil.revsingle(repo, rev).node()
 
     op1, op2 = repo.dirstate.parents()
     if not repo.changelog.isancestor(node, op1):
         raise error.Abort(_('cannot backout change that is not an ancestor'))
 
     p1, p2 = repo.changelog.parents(node)
     if p1 == nullid:
         raise error.Abort(_('cannot backout a change with no parents'))
     if p2 != nullid:
         if not opts.get('parent'):
             raise error.Abort(_('cannot backout a merge changeset'))
         p = repo.lookup(opts['parent'])
         if p not in (p1, p2):
             raise error.Abort(_('%s is not a parent of %s') %
                              (short(p), short(node)))
         parent = p
     else:
         if opts.get('parent'):
             raise error.Abort(_('cannot use --parent on non-merge changeset'))
         parent = p1
 
     # the backout should appear on the same branch
     branch = repo.dirstate.branch()
     bheads = repo.branchheads(branch)
     rctx = scmutil.revsingle(repo, hex(parent))
     if not opts.get('merge') and op1 != node:
         dsguard = dirstateguard.dirstateguard(repo, 'backout')
         try:
             ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                          'backout')
             stats = mergemod.update(repo, parent, True, True, node, False)
             repo.setparents(op1, op2)
             dsguard.close()
             hg._showstats(repo, stats)
             if stats[3]:
                 repo.ui.status(_("use 'hg resolve' to retry unresolved "
                                  "file merges\n"))
                 return 1
         finally:
             ui.setconfig('ui', 'forcemerge', '', '')
             lockmod.release(dsguard)
     else:
         hg.clean(repo, node, show_stats=False)
         repo.dirstate.setbranch(branch)
         cmdutil.revert(ui, repo, rctx, repo.dirstate.parents())
 
     if opts.get('no_commit'):
         msg = _("changeset %s backed out, "
                 "don't forget to commit.\n")
         ui.status(msg % short(node))
         return 0
 
     def commitfunc(ui, repo, message, match, opts):
         editform = 'backout'
         e = cmdutil.getcommiteditor(editform=editform,
                                     **pycompat.strkwargs(opts))
         if not message:
             # we don't translate commit messages
             message = "Backed out changeset %s" % short(node)
             e = cmdutil.getcommiteditor(edit=True, editform=editform)
         return repo.commit(message, opts.get('user'), opts.get('date'),
                            match, editor=e)
     newnode = cmdutil.commit(ui, repo, commitfunc, [], opts)
     if not newnode:
         ui.status(_("nothing changed\n"))
         return 1
     cmdutil.commitstatus(repo, newnode, branch, bheads)
 
     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 opts.get('merge') and op1 != node:
         hg.clean(repo, op1, show_stats=False)
         ui.status(_('merging with changeset %s\n')
                   % nice(repo.changelog.tip()))
         try:
             ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                          'backout')
             return hg.merge(repo, hex(repo.changelog.tip()))
         finally:
             ui.setconfig('ui', 'forcemerge', '', '')
     return 0
 
 @command('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')),
     ('e', 'extend', False, _('extend the bisect range')),
     ('c', 'command', '', _('use command to check changeset state'), _('CMD')),
     ('U', 'noupdate', False, _('do not update to target'))],
     _("[-gbsr] [-U] [-c CMD] [REV]"))
 def bisect(ui, repo, rev=None, extra=None, command=None,
                reset=None, good=None, bad=None, skip=None, extend=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 -U/--noupdate option is specified). Once
     you have performed tests, mark the working directory as good or
     bad, 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.
 
     If you supply a command, it will be used for automatic bisection.
     The environment variable HG_NODE will contain the ID of the
     changeset being tested. The exit status of the command will be
     used to mark revisions as good or bad: status 0 means good, 125
     means to skip the revision, 127 (command not found) will abort the
     bisection, and any other non-zero exit status means the revision
     is bad.
 
     .. container:: verbose
 
       Some examples:
 
       - start a bisection with known bad revision 34, and good revision 12::
 
           hg bisect --bad 34
           hg bisect --good 12
 
       - advance the current bisection by marking current revision as good or
         bad::
 
           hg bisect --good
           hg bisect --bad
 
       - mark the current revision, or a known revision, to be skipped (e.g. if
         that revision is not usable because of another issue)::
 
           hg bisect --skip
           hg bisect --skip 23
 
       - skip all revisions that do not touch directories ``foo`` or ``bar``::
 
           hg bisect --skip "!( file('path:foo') & file('path:bar') )"
 
       - forget the current bisection::
 
           hg bisect --reset
 
       - use 'make && make tests' to automatically find the first broken
         revision::
 
           hg bisect --reset
           hg bisect --bad 34
           hg bisect --good 12
           hg bisect --command "make && make tests"
 
       - see all changesets whose states are already known in the current
         bisection::
 
           hg log -r "bisect(pruned)"
 
       - see the changeset currently being bisected (especially useful
         if running with -U/--noupdate)::
 
           hg log -r "bisect(current)"
 
       - see all changesets that took part in the current bisection::
 
           hg log -r "bisect(range)"
 
       - you can even get a nice graph::
 
           hg log --graph -r "bisect(range)"
 
       See :hg:`help revisions.bisect` for more about the `bisect()` predicate.
 
     Returns 0 on success.
     """
     # 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:
         raise error.Abort(_('incompatible arguments'))
 
     incompatibles = {
         '--bad': bad,
         '--command': bool(command),
         '--extend': extend,
         '--good': good,
         '--reset': reset,
         '--skip': skip,
     }
 
     enabled = [x for x in incompatibles if incompatibles[x]]
 
     if len(enabled) > 1:
         raise error.Abort(_('%s and %s are incompatible') %
                           tuple(sorted(enabled)[0:2]))
 
     if reset:
         hbisect.resetstate(repo)
         return
 
     state = hbisect.load_state(repo)
 
     # update state
     if good or bad or skip:
         if rev:
             nodes = [repo.lookup(i) for i in scmutil.revrange(repo, [rev])]
         else:
             nodes = [repo.lookup('.')]
         if good:
             state['good'] += nodes
         elif bad:
             state['bad'] += nodes
         elif skip:
             state['skip'] += nodes
         hbisect.save_state(repo, state)
         if not (state['good'] and state['bad']):
             return
 
     def mayupdate(repo, node, show_stats=True):
         """common used update sequence"""
         if noupdate:
             return
         cmdutil.checkunfinished(repo)
         cmdutil.bailifchanged(repo)
         return hg.clean(repo, node, show_stats=show_stats)
 
     displayer = cmdutil.show_changeset(ui, repo, {})
 
     if command:
         changesets = 1
         if noupdate:
             try:
                 node = state['current'][0]
             except LookupError:
                 raise error.Abort(_('current bisect revision is unknown - '
                                    'start a new bisect to fix'))
         else:
             node, p2 = repo.dirstate.parents()
             if p2 != nullid:
                 raise error.Abort(_('current bisect revision is a merge'))
         if rev:
             node = repo[scmutil.revsingle(repo, rev, node)].node()
         try:
             while changesets:
                 # update state
                 state['current'] = [node]
                 hbisect.save_state(repo, state)
                 status = ui.system(command, environ={'HG_NODE': hex(node)},
                                    blockedtag='bisect_check')
                 if status == 125:
                     transition = "skip"
                 elif status == 0:
                     transition = "good"
                 # status < 0 means process was killed
                 elif status == 127:
                     raise error.Abort(_("failed to execute %s") % command)
                 elif status < 0:
                     raise error.Abort(_("%s killed") % command)
                 else:
                     transition = "bad"
                 state[transition].append(node)
                 ctx = repo[node]
                 ui.status(_('changeset %d:%s: %s\n') % (ctx, ctx, transition))
                 hbisect.checkstate(state)
                 # bisect
                 nodes, changesets, bgood = hbisect.bisect(repo.changelog, state)
                 # update to next check
                 node = nodes[0]
                 mayupdate(repo, node, show_stats=False)
         finally:
             state['current'] = [node]
             hbisect.save_state(repo, state)
         hbisect.printresult(ui, repo, state, displayer, nodes, bgood)
         return
 
     hbisect.checkstate(state)
 
     # actually bisect
     nodes, changesets, good = hbisect.bisect(repo.changelog, state)
     if extend:
         if not changesets:
             extendnode = hbisect.extendrange(repo, state, nodes, good)
             if extendnode is not None:
                 ui.write(_("Extending search to changeset %d:%s\n")
                          % (extendnode.rev(), extendnode))
                 state['current'] = [extendnode.node()]
                 hbisect.save_state(repo, state)
                 return mayupdate(repo, extendnode.node())
         raise error.Abort(_("nothing to extend"))
 
     if changesets == 0:
         hbisect.printresult(ui, repo, state, displayer, nodes, good)
     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 %d:%s "
                    "(%d changesets remaining, ~%d tests)\n")
                  % (rev, short(node), changesets, tests))
         state['current'] = [node]
         hbisect.save_state(repo, state)
         return mayupdate(repo, node)
 
 @command('bookmarks|bookmark',
     [('f', 'force', False, _('force')),
     ('r', 'rev', '', _('revision for bookmark action'), _('REV')),
     ('d', 'delete', False, _('delete a given bookmark')),
     ('m', 'rename', '', _('rename a given bookmark'), _('OLD')),
     ('i', 'inactive', False, _('mark a bookmark inactive')),
     ] + formatteropts,
     _('hg bookmarks [OPTIONS]... [NAME]...'))
 def bookmark(ui, repo, *names, **opts):
     '''create a new bookmark or list existing bookmarks
 
     Bookmarks are labels on changesets to help track lines of development.
     Bookmarks are unversioned and can be moved, renamed and deleted.
     Deleting or moving a bookmark has no effect on the associated changesets.
 
     Creating or updating to a bookmark causes it to be marked as 'active'.
     The active bookmark is indicated with a '*'.
     When a commit is made, the active bookmark will advance to the new commit.
     A plain :hg:`update` will also advance an active bookmark, if possible.
     Updating away from a bookmark will cause it to be deactivated.
 
     Bookmarks can be pushed and pulled between repositories (see
     :hg:`help push` and :hg:`help pull`). If a shared bookmark has
     diverged, a new 'divergent bookmark' of the form 'name@path' will
     be created. Using :hg:`merge` will resolve the divergence.
 
     A bookmark named '@' has the special property that :hg:`clone` will
     check it out by default if it exists.
 
     .. container:: verbose
 
       Examples:
 
       - create an active bookmark for a new line of development::
 
           hg book new-feature
 
       - create an inactive bookmark as a place marker::
 
           hg book -i reviewed
 
       - create an inactive bookmark on another changeset::
 
           hg book -r .^ tested
 
       - rename bookmark turkey to dinner::
 
           hg book -m turkey dinner
 
       - move the '@' bookmark from another branch::
 
           hg book -f @
     '''
     force = opts.get(r'force')
     rev = opts.get(r'rev')
     delete = opts.get(r'delete')
     rename = opts.get(r'rename')
     inactive = opts.get(r'inactive')
 
     if delete and rename:
         raise error.Abort(_("--delete and --rename are incompatible"))
     if delete and rev:
         raise error.Abort(_("--rev is incompatible with --delete"))
     if rename and rev:
         raise error.Abort(_("--rev is incompatible with --rename"))
     if not names and (delete or rev):
         raise error.Abort(_("bookmark name required"))
 
     if delete or rename or names or inactive:
         with repo.wlock(), repo.lock(), repo.transaction('bookmark') as tr:
             if delete:
                 bookmarks.delete(repo, tr, names)
             elif rename:
                 if not names:
                     raise error.Abort(_("new bookmark name required"))
                 elif len(names) > 1:
                     raise error.Abort(_("only one new bookmark name allowed"))
                 bookmarks.rename(repo, tr, rename, names[0], force, inactive)
             elif names:
                 bookmarks.addbookmarks(repo, tr, names, rev, force, inactive)
             elif inactive:
                 if len(repo._bookmarks) == 0:
                     ui.status(_("no bookmarks set\n"))
                 elif not repo._activebookmark:
                     ui.status(_("no active bookmark\n"))
                 else:
                     bookmarks.deactivate(repo)
     else: # show bookmarks
         bookmarks.printbookmarks(ui, repo, **opts)
 
 @command('branch',
     [('f', 'force', None,
      _('set branch name even if it shadows an existing branch')),
     ('C', 'clean', None, _('reset branch name to parent branch name'))],
     _('[-fC] [NAME]'))
 def branch(ui, repo, label=None, **opts):
     """set or show the current branch name
 
     .. note::
 
        Branch names are permanent and global. Use :hg:`bookmark` to create a
        light-weight bookmark instead. See :hg:`help glossary` for more
        information about named branches and bookmarks.
 
     With no argument, show the current branch name. With one argument,
     set the working directory branch name (the branch will not exist
     in the repository until the next commit). Standard practice
     recommends that primary development take place on the 'default'
     branch.
 
     Unless -f/--force is specified, branch will not let you set a
     branch name that already exists.
 
     Use -C/--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. Use
     :hg:`commit --close-branch` to mark this branch head as closed.
     When all heads of a branch are closed, the branch will be
     considered closed.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     if label:
         label = label.strip()
 
     if not opts.get('clean') and not label:
         ui.write("%s\n" % repo.dirstate.branch())
         return
 
     with repo.wlock():
         if opts.get('clean'):
             label = repo[None].p1().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.branchmap():
                 if label not in [p.branch() for p in repo[None].parents()]:
                     raise error.Abort(_('a branch of the same name already'
                                        ' exists'),
                                      # i18n: "it" refers to an existing branch
                                      hint=_("use 'hg update' to switch to it"))
             scmutil.checknewlabel(repo, label, 'branch')
             repo.dirstate.setbranch(label)
             ui.status(_('marked working directory as branch %s\n') % label)
 
             # find any open named branches aside from default
             others = [n for n, h, t, c in repo.branchmap().iterbranches()
                       if n != "default" and not c]
             if not others:
                 ui.status(_('(branches are permanent and global, '
                             'did you want a bookmark?)\n'))
 
 @command('branches',
     [('a', 'active', False,
       _('show only branches that have unmerged heads (DEPRECATED)')),
      ('c', 'closed', False, _('show normal and closed branches')),
     ] + formatteropts,
     _('[-c]'))
 def branches(ui, repo, active=False, closed=False, **opts):
     """list repository named branches
 
     List the repository's named branches, indicating which ones are
     inactive. If -c/--closed is specified, also list branches which have
     been marked closed (see :hg:`commit --close-branch`).
 
     Use the command :hg:`update` to switch to an existing branch.
 
     Returns 0.
     """
 
     opts = pycompat.byteskwargs(opts)
     ui.pager('branches')
     fm = ui.formatter('branches', opts)
     hexfunc = fm.hexfunc
 
     allheads = set(repo.heads())
     branches = []
     for tag, heads, tip, isclosed in repo.branchmap().iterbranches():
         isactive = not isclosed and bool(set(heads) & allheads)
         branches.append((tag, repo[tip], isactive, not isclosed))
     branches.sort(key=lambda i: (i[2], i[1].rev(), i[0], i[3]),
                   reverse=True)
 
     for tag, ctx, isactive, isopen in branches:
         if active and not isactive:
             continue
         if isactive:
             label = 'branches.active'
             notice = ''
         elif not isopen:
             if not closed:
                 continue
             label = 'branches.closed'
             notice = _(' (closed)')
         else:
             label = 'branches.inactive'
             notice = _(' (inactive)')
         current = (tag == repo.dirstate.branch())
         if current:
             label = 'branches.current'
 
         fm.startitem()
         fm.write('branch', '%s', tag, label=label)
         rev = ctx.rev()
         padsize = max(31 - len(str(rev)) - encoding.colwidth(tag), 0)
         fmt = ' ' * padsize + ' %d:%s'
         fm.condwrite(not ui.quiet, 'rev node', fmt, rev, hexfunc(ctx.node()),
                      label='log.changeset changeset.%s' % ctx.phasestr())
         fm.context(ctx=ctx)
         fm.data(active=isactive, closed=not isopen, current=current)
         if not ui.quiet:
             fm.plain(notice)
         fm.plain('\n')
     fm.end()
 
 @command('bundle',
     [('f', 'force', None, _('run even when the destination is unrelated')),
     ('r', 'rev', [], _('a changeset intended to be added to the destination'),
      _('REV')),
     ('b', 'branch', [], _('a specific branch you would like to bundle'),
      _('BRANCH')),
     ('', 'base', [],
      _('a base changeset assumed to be available at the destination'),
      _('REV')),
     ('a', 'all', None, _('bundle all changesets in the repository')),
     ('t', 'type', 'bzip2', _('bundle compression type to use'), _('TYPE')),
     ] + remoteopts,
     _('[-f] [-t BUNDLESPEC] [-a] [-r REV]... [--base REV]... FILE [DEST]'))
 def bundle(ui, repo, fname, dest=None, **opts):
     """create a bundle file
 
     Generate a bundle file containing data to be added to a repository.
 
     To create a bundle containing all changesets, use -a/--all
     (or --base null). Otherwise, hg assumes the destination will have
     all the nodes you specify with --base parameters. Otherwise, hg
     will assume the repository has all the nodes in destination, or
     default-push/default if no destination is specified.
 
     You can change bundle format with the -t/--type option. See
     :hg:`help bundlespec` for documentation on this format. By default,
     the most appropriate format is used and compression defaults to
     bzip2.
 
     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.
 
     Returns 0 on success, 1 if no changes found.
     """
     opts = pycompat.byteskwargs(opts)
     revs = None
     if 'rev' in opts:
         revstrings = opts['rev']
         revs = scmutil.revrange(repo, revstrings)
         if revstrings and not revs:
             raise error.Abort(_('no commits to bundle'))
 
     bundletype = opts.get('type', 'bzip2').lower()
     try:
         bcompression, cgversion, params = exchange.parsebundlespec(
                 repo, bundletype, strict=False)
     except error.UnsupportedBundleSpecification as e:
         raise error.Abort(str(e),
                           hint=_("see 'hg help bundlespec' for supported "
                                  "values for --type"))
 
     # Packed bundles are a pseudo bundle format for now.
     if cgversion == 's1':
         raise error.Abort(_('packed bundles cannot be produced by "hg bundle"'),
                           hint=_("use 'hg debugcreatestreamclonebundle'"))
 
     if opts.get('all'):
         if dest:
             raise error.Abort(_("--all is incompatible with specifying "
                                 "a destination"))
         if opts.get('base'):
             ui.warn(_("ignoring --base because --all was specified\n"))
         base = ['null']
     else:
         base = scmutil.revrange(repo, opts.get('base'))
     if cgversion not in changegroup.supportedoutgoingversions(repo):
         raise error.Abort(_("repository does not support bundle version %s") %
                           cgversion)
 
     if base:
         if dest:
             raise error.Abort(_("--base is incompatible with specifying "
                                "a destination"))
         common = [repo.lookup(rev) for rev in base]
         heads = revs and map(repo.lookup, revs) or None
         outgoing = discovery.outgoing(repo, common, heads)
     else:
         dest = ui.expandpath(dest or 'default-push', dest or 'default')
         dest, branches = hg.parseurl(dest, opts.get('branch'))
         other = hg.peer(repo, opts, dest)
         revs, checkout = hg.addbranchrevs(repo, repo, branches, revs)
         heads = revs and map(repo.lookup, revs) or revs
         outgoing = discovery.findcommonoutgoing(repo, other,
                                                 onlyheads=heads,
                                                 force=opts.get('force'),
                                                 portable=True)
 
     if not outgoing.missing:
         scmutil.nochangesfound(ui, repo, not base and outgoing.excluded)
         return 1
 
     if cgversion == '01': #bundle1
         if bcompression is None:
             bcompression = 'UN'
         bversion = 'HG10' + bcompression
         bcompression = None
     elif cgversion in ('02', '03'):
         bversion = 'HG20'
     else:
         raise error.ProgrammingError(
             'bundle: unexpected changegroup version %s' % cgversion)
 
     # TODO compression options should be derived from bundlespec parsing.
     # This is a temporary hack to allow adjusting bundle compression
     # level without a) formalizing the bundlespec changes to declare it
     # b) introducing a command flag.
     compopts = {}
     complevel = ui.configint('experimental', 'bundlecomplevel')
     if complevel is not None:
         compopts['level'] = complevel
 
 
     contentopts = {'cg.version': cgversion}
     if repo.ui.configbool('experimental', 'evolution.bundle-obsmarker'):
         contentopts['obsolescence'] = True
     if repo.ui.configbool('experimental', 'bundle-phases'):
         contentopts['phases'] = True
     bundle2.writenewbundle(ui, repo, 'bundle', fname, bversion, outgoing,
                            contentopts, compression=bcompression,
                            compopts=compopts)
 
 @command('cat',
     [('o', 'output', '',
      _('print output to file with formatted name'), _('FORMAT')),
     ('r', 'rev', '', _('print the given revision'), _('REV')),
     ('', 'decode', None, _('apply any matching decode filter')),
     ] + walkopts + formatteropts,
     _('[OPTION]... FILE...'),
     inferrepo=True)
 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.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules as follows:
 
     :``%%``: literal "%" character
     :``%s``: basename of file being printed
     :``%d``: dirname of file being printed, or '.' if in repository root
     :``%p``: root-relative path name of file being printed
     :``%H``: changeset hash (40 hexadecimal digits)
     :``%R``: changeset revision number
     :``%h``: short-form changeset hash (12 hexadecimal digits)
     :``%r``: zero-padded changeset revision number
     :``%b``: basename of the exporting repository
 
     Returns 0 on success.
     """
     ctx = scmutil.revsingle(repo, opts.get('rev'))
     m = scmutil.match(ctx, (file1,) + pats, opts)
     fntemplate = opts.pop('output', '')
     if cmdutil.isstdiofilename(fntemplate):
         fntemplate = ''
 
     if fntemplate:
         fm = formatter.nullformatter(ui, 'cat')
     else:
         ui.pager('cat')
         fm = ui.formatter('cat', opts)
     with fm:
         return cmdutil.cat(ui, repo, ctx, m, fm, fntemplate, '', **opts)
 
 @command('^clone',
     [('U', 'noupdate', None, _('the clone will include an empty working '
                                'directory (only a repository)')),
     ('u', 'updaterev', '', _('revision, tag, or branch to check out'),
         _('REV')),
     ('r', 'rev', [], _('include the specified changeset'), _('REV')),
     ('b', 'branch', [], _('clone only the specified branch'), _('BRANCH')),
     ('', 'pull', None, _('use pull protocol to copy metadata')),
     ('', 'uncompressed', None, _('use uncompressed transfer (fast over LAN)')),
     ] + remoteopts,
     _('[OPTION]... SOURCE [DEST]'),
     norepo=True)
 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.
 
     Only local paths and ``ssh://`` URLs are supported as
     destinations. For ``ssh://`` destinations, no working directory or
     ``.hg/hgrc`` will be created on the remote side.
 
     If the source repository has a bookmark called '@' set, that
     revision will be checked out in the new repository by default.
 
     To check out a particular version, use -u/--update, or
     -U/--noupdate to create a clone with no working directory.
 
     To pull only a subset of changesets, specify one or more revisions
     identifiers with -r/--rev or branches with -b/--branch. The
     resulting clone will contain only the specified changesets and
     their ancestors. These options (or 'clone src#rev dest') imply
     --pull, even for local source repositories.
 
     .. note::
 
        Specifying a tag will include the tagged changeset but not the
        changeset containing the tag.
 
     .. container:: verbose
 
       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 working
       directory). 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 the working
       directory 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.
 
       Mercurial will update the working directory to the first applicable
       revision from this list:
 
       a) null if -U or the source repository has no changesets
       b) if -u . and the source repository is local, the first parent of
          the source repository's working directory
       c) the changeset specified with -u (if a branch name, this means the
          latest head of that branch)
       d) the changeset specified with -r
       e) the tipmost head specified with -b
       f) the tipmost head specified with the url#branch source syntax
       g) the revision marked with the '@' bookmark, if present
       h) the tipmost head of the default branch
       i) tip
 
       When cloning from servers that support it, Mercurial may fetch
       pre-generated data from a server-advertised URL. When this is done,
       hooks operating on incoming changesets and changegroups may fire twice,
       once for the bundle fetched from the URL and another for any additional
       data not fetched from this URL. In addition, if an error occurs, the
       repository may be rolled back to a partial clone. This behavior may
       change in future releases. See :hg:`help -e clonebundles` for more.
 
       Examples:
 
       - clone a remote repository to a new directory named hg/::
 
           hg clone https://www.mercurial-scm.org/repo/hg/
 
       - create a lightweight local clone::
 
           hg clone project/ project-feature/
 
       - clone from an absolute path on an ssh server (note double-slash)::
 
           hg clone ssh://user@server//home/projects/alpha/
 
       - do a high-speed clone over a LAN while checking out a
         specified version::
 
           hg clone --uncompressed http://server/repo -u 1.5
 
       - create a repository without changesets after a particular revision::
 
           hg clone -r 04e544 experimental/ good/
 
       - clone (and track) a particular named branch::
 
           hg clone https://www.mercurial-scm.org/repo/hg/#stable
 
     See :hg:`help urls` for details on specifying URLs.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     if opts.get('noupdate') and opts.get('updaterev'):
         raise error.Abort(_("cannot specify both --noupdate and --updaterev"))
 
     r = hg.clone(ui, opts, source, dest,
                  pull=opts.get('pull'),
                  stream=opts.get('uncompressed'),
                  rev=opts.get('rev'),
                  update=opts.get('updaterev') or not opts.get('noupdate'),
                  branch=opts.get('branch'),
                  shareopts=opts.get('shareopts'))
 
     return r is None
 
 @command('^commit|ci',
     [('A', 'addremove', None,
      _('mark new/missing files as added/removed before committing')),
     ('', 'close-branch', None,
      _('mark a branch head as closed')),
     ('', 'amend', None, _('amend the parent of the working directory')),
     ('s', 'secret', None, _('use the secret phase for committing')),
     ('e', 'edit', None, _('invoke editor on commit messages')),
     ('i', 'interactive', None, _('use interactive mode')),
     ] + walkopts + commitopts + commitopts2 + subrepoopts,
     _('[OPTION]... [FILE]...'),
     inferrepo=True)
 def commit(ui, repo, *pats, **opts):
     """commit the specified files or all outstanding changes
 
     Commit changes to the given files into the repository. Unlike a
     centralized SCM, this operation is a local operation. See
     :hg:`push` for a way to actively distribute your changes.
 
     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
     filenames or -I/-X filters.
 
     If no commit message is specified, Mercurial starts your
     configured editor where you can enter a message. In case your
     commit fails, you will find a backup of your message in
     ``.hg/last-message.txt``.
 
     The --close-branch flag can be used to mark the current branch
     head closed. When all heads of a branch are closed, the branch
     will be considered closed and no longer listed.
 
     The --amend flag can be used to amend the parent of the
     working directory with a new commit that contains the changes
     in the parent in addition to those currently reported by :hg:`status`,
     if there are any. The old commit is stored in a backup bundle in
     ``.hg/strip-backup`` (see :hg:`help bundle` and :hg:`help unbundle`
     on how to restore it).
 
     Message, user and date are taken from the amended commit unless
     specified. When a message isn't specified on the command line,
     the editor will open with the message of the amended commit.
 
     It is not possible to amend public changesets (see :hg:`help phases`)
     or changesets that have children.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success, 1 if nothing changed.
 
     .. container:: verbose
 
       Examples:
 
       - commit all files ending in .py::
 
           hg commit --include "set:**.py"
 
       - commit all non-binary files::
 
           hg commit --exclude "set:binary()"
 
       - amend the current commit and set the date to now::
 
           hg commit --amend --date now
     """
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         return _docommit(ui, repo, *pats, **opts)
     finally:
         release(lock, wlock)
 
 def _docommit(ui, repo, *pats, **opts):
     if opts.get(r'interactive'):
         opts.pop(r'interactive')
         ret = cmdutil.dorecord(ui, repo, commit, None, False,
                                cmdutil.recordfilter, *pats,
                                **opts)
         # ret can be 0 (no changes to record) or the value returned by
         # commit(), 1 if nothing changed or None on success.
         return 1 if ret == 0 else ret
 
     opts = pycompat.byteskwargs(opts)
     if opts.get('subrepos'):
         if opts.get('amend'):
             raise error.Abort(_('cannot amend with --subrepos'))
         # Let --subrepos on the command line override config setting.
         ui.setconfig('ui', 'commitsubrepos', True, 'commit')
 
     cmdutil.checkunfinished(repo, commit=True)
 
     branch = repo[None].branch()
     bheads = repo.branchheads(branch)
 
     extra = {}
     if opts.get('close_branch'):
         extra['close'] = 1
 
         if not bheads:
             raise error.Abort(_('can only close branch heads'))
         elif opts.get('amend'):
             if repo[None].parents()[0].p1().branch() != branch and \
                     repo[None].parents()[0].p2().branch() != branch:
                 raise error.Abort(_('can only close branch heads'))
 
     if opts.get('amend'):
         if ui.configbool('ui', 'commitsubrepos'):
             raise error.Abort(_('cannot amend with ui.commitsubrepos enabled'))
 
         old = repo['.']
         if not old.mutable():
             raise error.Abort(_('cannot amend public changesets'))
         if len(repo[None].parents()) > 1:
             raise error.Abort(_('cannot amend while merging'))
         allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
         if not allowunstable and old.children():
             raise error.Abort(_('cannot amend changeset with children'))
 
         # Currently histedit gets confused if an amend happens while histedit
         # is in progress. Since we have a checkunfinished command, we are
         # temporarily honoring it.
         #
         # Note: eventually this guard will be removed. Please do not expect
         # this behavior to remain.
         if not obsolete.isenabled(repo, obsolete.createmarkersopt):
             cmdutil.checkunfinished(repo)
 
         # commitfunc is used only for temporary amend commit by cmdutil.amend
         def commitfunc(ui, repo, message, match, opts):
             return repo.commit(message,
                                opts.get('user') or old.user(),
                                opts.get('date') or old.date(),
                                match,
                                extra=extra)
 
         node = cmdutil.amend(ui, repo, commitfunc, old, extra, pats, opts)
         if node == old.node():
             ui.status(_("nothing changed\n"))
             return 1
     else:
         def commitfunc(ui, repo, message, match, opts):
             overrides = {}
             if opts.get('secret'):
                 overrides[('phases', 'new-commit')] = 'secret'
 
             baseui = repo.baseui
             with baseui.configoverride(overrides, 'commit'):
                 with ui.configoverride(overrides, 'commit'):
                     editform = cmdutil.mergeeditform(repo[None],
                                                      'commit.normal')
                     editor = cmdutil.getcommiteditor(
                         editform=editform, **pycompat.strkwargs(opts))
                     return repo.commit(message,
                                        opts.get('user'),
                                        opts.get('date'),
                                        match,
                                        editor=editor,
                                        extra=extra)
 
         node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
 
         if not node:
             stat = cmdutil.postcommitstatus(repo, pats, opts)
             if stat[3]:
                 ui.status(_("nothing changed (%d missing files, see "
                             "'hg status')\n") % len(stat[3]))
             else:
                 ui.status(_("nothing changed\n"))
             return 1
 
     cmdutil.commitstatus(repo, node, branch, bheads, opts)
 
 @command('config|showconfig|debugconfig',
     [('u', 'untrusted', None, _('show untrusted configuration options')),
      ('e', 'edit', None, _('edit user config')),
      ('l', 'local', None, _('edit repository config')),
      ('g', 'global', None, _('edit global config'))] + formatteropts,
     _('[-u] [NAME]...'),
     optionalrepo=True)
 def config(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
     With no arguments, print names and values of all config items.
 
     With one argument of the form section.name, print just the value
     of that config item.
 
     With multiple arguments, print names and values of all config
     items with matching section names.
 
     With --edit, start an editor on the user-level config file. With
     --global, edit the system-wide config file. With --local, edit the
     repository-level config file.
 
     With --debug, the source (filename and line number) is printed
     for each config item.
 
     See :hg:`help config` for more information about config files.
 
     Returns 0 on success, 1 if NAME does not exist.
 
     """
 
     opts = pycompat.byteskwargs(opts)
     if opts.get('edit') or opts.get('local') or opts.get('global'):
         if opts.get('local') and opts.get('global'):
             raise error.Abort(_("can't use --local and --global together"))
 
         if opts.get('local'):
             if not repo:
                 raise error.Abort(_("can't use --local outside a repository"))
             paths = [repo.vfs.join('hgrc')]
         elif opts.get('global'):
             paths = rcutil.systemrcpath()
         else:
             paths = rcutil.userrcpath()
 
         for f in paths:
             if os.path.exists(f):
                 break
         else:
             if opts.get('global'):
                 samplehgrc = uimod.samplehgrcs['global']
             elif opts.get('local'):
                 samplehgrc = uimod.samplehgrcs['local']
             else:
                 samplehgrc = uimod.samplehgrcs['user']
 
             f = paths[0]
             fp = open(f, "wb")
             fp.write(util.tonativeeol(samplehgrc))
             fp.close()
 
         editor = ui.geteditor()
         ui.system("%s \"%s\"" % (editor, f),
                   onerr=error.Abort, errprefix=_("edit failed"),
                   blockedtag='config_edit')
         return
     ui.pager('config')
     fm = ui.formatter('config', opts)
     for t, f in rcutil.rccomponents():
         if t == 'path':
             ui.debug('read config from: %s\n' % f)
         elif t == 'items':
             for section, name, value, source in f:
                 ui.debug('set config by: %s\n' % source)
         else:
             raise error.ProgrammingError('unknown rctype: %s' % t)
     untrusted = bool(opts.get('untrusted'))
     if values:
         sections = [v for v in values if '.' not in v]
         items = [v for v in values if '.' in v]
         if len(items) > 1 or items and sections:
             raise error.Abort(_('only one config item permitted'))
     matched = False
     for section, name, value in ui.walkconfig(untrusted=untrusted):
         source = ui.configsource(section, name, untrusted)
         value = pycompat.bytestr(value)
         if fm.isplain():
             source = source or 'none'
             value = value.replace('\n', '\\n')
         entryname = section + '.' + name
         if values:
             for v in values:
                 if v == section:
                     fm.startitem()
                     fm.condwrite(ui.debugflag, 'source', '%s: ', source)
                     fm.write('name value', '%s=%s\n', entryname, value)
                     matched = True
                 elif v == entryname:
                     fm.startitem()
                     fm.condwrite(ui.debugflag, 'source', '%s: ', source)
                     fm.write('value', '%s\n', value)
                     fm.data(name=entryname)
                     matched = True
         else:
             fm.startitem()
             fm.condwrite(ui.debugflag, 'source', '%s: ', source)
             fm.write('name value', '%s=%s\n', entryname, value)
             matched = True
     fm.end()
     if matched:
         return 0
     return 1
 
 @command('copy|cp',
     [('A', 'after', None, _('record a copy that has already occurred')),
     ('f', 'force', None, _('forcibly copy over an existing managed file')),
     ] + walkopts + dryrunopts,
     _('[OPTION]... [SOURCE]... DEST'))
 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,
     the source must be a single file.
 
     By default, this command copies the contents of files as they
     exist in the working directory. If invoked with -A/--after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect with the next commit. To undo a copy
     before that, see :hg:`revert`.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     opts = pycompat.byteskwargs(opts)
     with repo.wlock(False):
         return cmdutil.copy(ui, repo, pats, opts)
 
 @command('debugcommands', [], _('[COMMAND]'), norepo=True)
 def debugcommands(ui, cmd='', *args):
     """list all available commands and options"""
     for cmd, vals in sorted(table.iteritems()):
         cmd = cmd.split('|')[0].strip('^')
         opts = ', '.join([i[1] for i in vals[1]])
         ui.write('%s: %s\n' % (cmd, opts))
 
 @command('debugcomplete',
     [('o', 'options', None, _('show the command options'))],
     _('[-o] CMD'),
     norepo=True)
 def debugcomplete(ui, cmd='', **opts):
     """returns the completion list associated with the given command"""
 
     if opts.get('options'):
         options = []
         otables = [globalopts]
         if cmd:
             aliases, entry = cmdutil.findcmd(cmd, table, False)
             otables.append(entry[1])
         for t in otables:
             for o in t:
                 if "(DEPRECATED)" in o[3]:
                     continue
                 if o[0]:
                     options.append('-%s' % o[0])
                 options.append('--%s' % o[1])
         ui.write("%s\n" % "\n".join(options))
         return
 
     cmdlist, unused_allcmds = cmdutil.findpossible(cmd, table)
     if ui.verbose:
         cmdlist = [' '.join(c[0]) for c in cmdlist.values()]
     ui.write("%s\n" % "\n".join(sorted(cmdlist)))
 
 @command('^diff',
     [('r', 'rev', [], _('revision'), _('REV')),
     ('c', 'change', '', _('change made by revision'), _('REV'))
     ] + diffopts + diffopts2 + walkopts + subrepoopts,
     _('[OPTION]... ([-c REV] | [-r REV1 [-r REV2]]) [FILE]...'),
     inferrepo=True)
 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::
 
        :hg:`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 first parent.
 
     Alternatively you can specify -c/--change with a revision to see
     the changes in that changeset relative to its first parent.
 
     Without the -a/--text option, diff will avoid generating diffs of
     files it detects as binary. With -a, diff will generate a diff
     anyway, probably with undesirable results.
 
     Use the -g/--git option to generate diffs in the git extended diff
     format. For more information, read :hg:`help diffs`.
 
     .. container:: verbose
 
       Examples:
 
       - compare a file in the current working directory to its parent::
 
           hg diff foo.c
 
       - compare two historical versions of a directory, with rename info::
 
           hg diff --git -r 1.0:1.2 lib/
 
       - get change stats relative to the last change on some date::
 
           hg diff --stat -r "date('may 2')"
 
       - diff all newly-added files that contain a keyword::
 
           hg diff "set:added() and grep(GNU)"
 
       - compare a revision and its parents::
 
           hg diff -c 9353         # compare against first parent
           hg diff -r 9353^:9353   # same using revset syntax
           hg diff -r 9353^2:9353  # compare against the second parent
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     revs = opts.get('rev')
     change = opts.get('change')
     stat = opts.get('stat')
     reverse = opts.get('reverse')
 
     if revs and change:
         msg = _('cannot specify --rev and --change at the same time')
         raise error.Abort(msg)
     elif change:
         node2 = scmutil.revsingle(repo, change, None).node()
         node1 = repo[node2].p1().node()
     else:
         node1, node2 = scmutil.revpair(repo, revs)
 
     if reverse:
         node1, node2 = node2, node1
 
     diffopts = patch.diffallopts(ui, opts)
     m = scmutil.match(repo[node2], pats, opts)
     ui.pager('diff')
     cmdutil.diffordiffstat(ui, repo, diffopts, node1, node2, m, stat=stat,
                            listsubrepos=opts.get('subrepos'),
                            root=opts.get('root'))
 
 @command('^export',
     [('o', 'output', '',
      _('print output to file with formatted name'), _('FORMAT')),
     ('', 'switch-parent', None, _('diff against the second parent')),
     ('r', 'rev', [], _('revisions to export'), _('REV')),
     ] + diffopts,
     _('[OPTION]... [-o OUTFILESPEC] [-r] [REV]...'))
 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.
     If no revision is given, the parent of the working directory is used.
 
     The information shown in the changeset header is: author, date,
     branch name (if non-default), changeset hash, parent(s) and commit
     comment.
 
     .. note::
 
        :hg:`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 hexadecimal digits)
     :``%N``: number of patches being generated
     :``%R``: changeset revision number
     :``%b``: basename of the exporting repository
     :``%h``: short-form changeset hash (12 hexadecimal digits)
     :``%m``: first line of the commit message (only alphanumeric characters)
     :``%n``: zero-padded sequence number, starting at 1
     :``%r``: zero-padded changeset revision number
 
     Without the -a/--text option, export will avoid generating diffs
     of files it detects as binary. With -a, export will generate a
     diff anyway, probably with undesirable results.
 
     Use the -g/--git option to generate diffs in the git extended diff
     format. See :hg:`help diffs` for more information.
 
     With the --switch-parent option, the diff will be against the
     second parent. It can be useful to review a merge.
 
     .. container:: verbose
 
       Examples:
 
       - use export and import to transplant a bugfix to the current
         branch::
 
           hg export -r 9353 | hg import -
 
       - export all the changesets between two revisions to a file with
         rename information::
 
           hg export --git -r 123:150 > changes.txt
 
       - split outgoing changes into a series of patches with
         descriptive names::
 
           hg export -r "outgoing()" -o "%n-%m.patch"
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     changesets += tuple(opts.get('rev', []))
     if not changesets:
         changesets = ['.']
     revs = scmutil.revrange(repo, changesets)
     if not revs:
         raise error.Abort(_("export requires at least one changeset"))
     if len(revs) > 1:
         ui.note(_('exporting patches:\n'))
     else:
         ui.note(_('exporting patch:\n'))
     ui.pager('export')
     cmdutil.export(repo, revs, fntemplate=opts.get('output'),
                  switch_parent=opts.get('switch_parent'),
                  opts=patch.diffallopts(ui, opts))
 
 @command('files',
     [('r', 'rev', '', _('search the repository as it is in REV'), _('REV')),
      ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
     ] + walkopts + formatteropts + subrepoopts,
     _('[OPTION]... [FILE]...'))
 def files(ui, repo, *pats, **opts):
     """list tracked files
 
     Print files under Mercurial control in the working directory or
     specified revision for given files (excluding removed files).
     Files can be specified as filenames or filesets.
 
     If no files are given to match, this command prints the names
     of all files under Mercurial control.
 
     .. container:: verbose
 
       Examples:
 
       - list all files under the current directory::
 
           hg files .
 
       - shows sizes and flags for current revision::
 
           hg files -vr .
 
       - list all files named README::
 
           hg files -I "**/README"
 
       - list all binary files::
 
           hg files "set:binary()"
 
       - find files containing a regular expression::
 
           hg files "set:grep('bob')"
 
       - search tracked file contents with xargs and grep::
 
           hg files -0 | xargs -0 grep foo
 
     See :hg:`help patterns` and :hg:`help filesets` for more information
     on specifying file patterns.
 
     Returns 0 if a match is found, 1 otherwise.
 
     """
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get('rev'), None)
 
     end = '\n'
     if opts.get('print0'):
         end = '\0'
     fmt = '%s' + end
 
     m = scmutil.match(ctx, pats, opts)
     ui.pager('files')
     with ui.formatter('files', opts) as fm:
         return cmdutil.files(ui, ctx, m, fm, fmt, opts.get('subrepos'))
 
 @command('^forget', walkopts, _('[OPTION]... FILE...'), inferrepo=True)
 def forget(ui, repo, *pats, **opts):
     """forget the specified files on the next commit
 
     Mark the specified files so they will no longer be tracked
     after the next commit.
 
     This only removes files from the current branch, not from the
     entire project history, and it does not delete them from the
     working directory.
 
     To delete the file from the working directory, see :hg:`remove`.
 
     To undo a forget before the next commit, see :hg:`add`.
 
     .. container:: verbose
 
       Examples:
 
       - forget newly-added binary files::
 
           hg forget "set:added() and binary()"
 
       - forget files that would be excluded by .hgignore::
 
           hg forget "set:hgignore()"
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     if not pats:
         raise error.Abort(_('no files specified'))
 
     m = scmutil.match(repo[None], pats, opts)
     rejected = cmdutil.forget(ui, repo, m, prefix="", explicitonly=False)[0]
     return rejected and 1 or 0
 
 @command(
     'graft',
     [('r', 'rev', [], _('revisions to graft'), _('REV')),
      ('c', 'continue', False, _('resume interrupted graft')),
      ('e', 'edit', False, _('invoke editor on commit messages')),
      ('', 'log', None, _('append graft info to log message')),
      ('f', 'force', False, _('force graft')),
      ('D', 'currentdate', False,
       _('record the current date as commit date')),
      ('U', 'currentuser', False,
       _('record the current user as committer'), _('DATE'))]
     + commitopts2 + mergetoolopts  + dryrunopts,
     _('[OPTION]... [-r REV]... REV...'))
 def graft(ui, repo, *revs, **opts):
     '''copy changes from other branches onto the current branch
 
     This command uses Mercurial's merge logic to copy individual
     changes from other branches without merging branches in the
     history graph. This is sometimes known as 'backporting' or
     'cherry-picking'. By default, graft will copy user, date, and
     description from the source changesets.
 
     Changesets that are ancestors of the current revision, that have
     already been grafted, or that are merges will be skipped.
 
     If --log is specified, log messages will have a comment appended
     of the form::
 
       (grafted from CHANGESETHASH)
 
     If --force is specified, revisions will be grafted even if they
     are already ancestors of or have been grafted to the destination.
     This is useful when the revisions have since been backed out.
 
     If a graft merge results in conflicts, the graft process is
     interrupted so that the current merge can be manually resolved.
     Once all conflicts are addressed, the graft process can be
     continued with the -c/--continue option.
 
     .. note::
 
        The -c/--continue option does not reapply earlier options, except
        for --force.
 
     .. container:: verbose
 
       Examples:
 
       - copy a single change to the stable branch and edit its description::
 
           hg update stable
           hg graft --edit 9393
 
       - graft a range of changesets with one exception, updating dates::
 
           hg graft -D "2085::2093 and not 2091"
 
       - continue a graft after resolving conflicts::
 
           hg graft -c
 
       - show the source of a grafted changeset::
 
           hg log --debug -r .
 
       - show revisions sorted by date::
 
           hg log -r "sort(all(), date)"
 
     See :hg:`help revisions` for more about specifying revisions.
 
     Returns 0 on successful completion.
     '''
     with repo.wlock():
         return _dograft(ui, repo, *revs, **opts)
 
 def _dograft(ui, repo, *revs, **opts):
     opts = pycompat.byteskwargs(opts)
     if revs and opts.get('rev'):
         ui.warn(_('warning: inconsistent use of --rev might give unexpected '
                   'revision ordering!\n'))
 
     revs = list(revs)
     revs.extend(opts.get('rev'))
 
     if not opts.get('user') and opts.get('currentuser'):
         opts['user'] = ui.username()
     if not opts.get('date') and opts.get('currentdate'):
         opts['date'] = "%d %d" % util.makedate()
 
     editor = cmdutil.getcommiteditor(editform='graft',
                                      **pycompat.strkwargs(opts))
 
     cont = False
     if opts.get('continue'):
         cont = True
         if revs:
             raise error.Abort(_("can't specify --continue and revisions"))
         # read in unfinished revisions
         try:
             nodes = repo.vfs.read('graftstate').splitlines()
             revs = [repo[node].rev() for node in nodes]
         except IOError as inst:
             if inst.errno != errno.ENOENT:
                 raise
             cmdutil.wrongtooltocontinue(repo, _('graft'))
     else:
         cmdutil.checkunfinished(repo)
         cmdutil.bailifchanged(repo)
         if not revs:
             raise error.Abort(_('no revisions specified'))
         revs = scmutil.revrange(repo, revs)
 
     skipped = set()
     # check for merges
     for rev in repo.revs('%ld and merge()', revs):
         ui.warn(_('skipping ungraftable merge revision %s\n') % rev)
         skipped.add(rev)
     revs = [r for r in revs if r not in skipped]
     if not revs:
         return -1
 
     # Don't check in the --continue case, in effect retaining --force across
     # --continues. That's because without --force, any revisions we decided to
     # skip would have been filtered out here, so they wouldn't have made their
     # way to the graftstate. With --force, any revisions we would have otherwise
     # skipped would not have been filtered out, and if they hadn't been applied
     # already, they'd have been in the graftstate.
     if not (cont or opts.get('force')):
         # check for ancestors of dest branch
         crev = repo['.'].rev()
         ancestors = repo.changelog.ancestors([crev], inclusive=True)
         # XXX make this lazy in the future
         # don't mutate while iterating, create a copy
         for rev in list(revs):
             if rev in ancestors:
                 ui.warn(_('skipping ancestor revision %d:%s\n') %
                         (rev, repo[rev]))
                 # XXX remove on list is slow
                 revs.remove(rev)
         if not revs:
             return -1
 
         # analyze revs for earlier grafts
         ids = {}
         for ctx in repo.set("%ld", revs):
             ids[ctx.hex()] = ctx.rev()
             n = ctx.extra().get('source')
             if n:
                 ids[n] = ctx.rev()
 
         # check ancestors for earlier grafts
         ui.debug('scanning for duplicate grafts\n')
 
         # The only changesets we can be sure doesn't contain grafts of any
         # revs, are the ones that are common ancestors of *all* revs:
         for rev in repo.revs('only(%d,ancestor(%ld))', crev, revs):
             ctx = repo[rev]
             n = ctx.extra().get('source')
             if n in ids:
                 try:
                     r = repo[n].rev()
                 except error.RepoLookupError:
                     r = None
                 if r in revs:
                     ui.warn(_('skipping revision %d:%s '
                               '(already grafted to %d:%s)\n')
                             % (r, repo[r], rev, ctx))
                     revs.remove(r)
                 elif ids[n] in revs:
                     if r is None:
                         ui.warn(_('skipping already grafted revision %d:%s '
                                   '(%d:%s also has unknown origin %s)\n')
                                 % (ids[n], repo[ids[n]], rev, ctx, n[:12]))
                     else:
                         ui.warn(_('skipping already grafted revision %d:%s '
                                   '(%d:%s also has origin %d:%s)\n')
                                 % (ids[n], repo[ids[n]], rev, ctx, r, n[:12]))
                     revs.remove(ids[n])
             elif ctx.hex() in ids:
                 r = ids[ctx.hex()]
                 ui.warn(_('skipping already grafted revision %d:%s '
                           '(was grafted from %d:%s)\n') %
                         (r, repo[r], rev, ctx))
                 revs.remove(r)
         if not revs:
             return -1
 
     for pos, ctx in enumerate(repo.set("%ld", revs)):
         desc = '%d:%s "%s"' % (ctx.rev(), ctx,
                                ctx.description().split('\n', 1)[0])
         names = repo.nodetags(ctx.node()) + repo.nodebookmarks(ctx.node())
         if names:
             desc += ' (%s)' % ' '.join(names)
         ui.status(_('grafting %s\n') % desc)
         if opts.get('dry_run'):
             continue
 
         source = ctx.extra().get('source')
         extra = {}
         if source:
             extra['source'] = source
             extra['intermediate-source'] = ctx.hex()
         else:
             extra['source'] = ctx.hex()
         user = ctx.user()
         if opts.get('user'):
             user = opts['user']
         date = ctx.date()
         if opts.get('date'):
             date = opts['date']
         message = ctx.description()
         if opts.get('log'):
             message += '\n(grafted from %s)' % ctx.hex()
 
         # we don't merge the first commit when continuing
         if not cont:
             # perform the graft merge with p1(rev) as 'ancestor'
             try:
                 # ui.forcemerge is an internal variable, do not document
                 repo.ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                                   'graft')
                 stats = mergemod.graft(repo, ctx, ctx.p1(),
                                        ['local', 'graft'])
             finally:
                 repo.ui.setconfig('ui', 'forcemerge', '', 'graft')
             # report any conflicts
             if stats and stats[3] > 0:
                 # write out state for --continue
                 nodelines = [repo[rev].hex() + "\n" for rev in revs[pos:]]
                 repo.vfs.write('graftstate', ''.join(nodelines))
                 extra = ''
                 if opts.get('user'):
                     extra += ' --user %s' % util.shellquote(opts['user'])
                 if opts.get('date'):
                     extra += ' --date %s' % util.shellquote(opts['date'])
                 if opts.get('log'):
                     extra += ' --log'
                 hint=_("use 'hg resolve' and 'hg graft --continue%s'") % extra
                 raise error.Abort(
                     _("unresolved conflicts, can't continue"),
                     hint=hint)
         else:
             cont = False
 
         # commit
         node = repo.commit(text=message, user=user,
                     date=date, extra=extra, editor=editor)
         if node is None:
             ui.warn(
                 _('note: graft of %d:%s created no changes to commit\n') %
                 (ctx.rev(), ctx))
 
     # remove state when we complete successfully
     if not opts.get('dry_run'):
         repo.vfs.unlinkpath('graftstate', ignoremissing=True)
 
     return 0
 
 @command('grep',
     [('0', 'print0', None, _('end fields with NUL')),
     ('', 'all', None, _('print all revisions that match')),
     ('a', 'text', None, _('treat all files as text')),
     ('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 revisions that match')),
     ('n', 'line-number', None, _('print matching line numbers')),
     ('r', 'rev', [],
      _('only search files changed within revision range'), _('REV')),
     ('u', 'user', None, _('list the author (long with -v)')),
     ('d', 'date', None, _('list the date (short with -q)')),
     ] + formatteropts + walkopts,
     _('[OPTION]... PATTERN [FILE]...'),
     inferrepo=True)
 def grep(ui, repo, pattern, *pats, **opts):
     """search revision history for a pattern in specified files
 
     Search revision history for a regular expression in the specified
     files or the entire project.
 
     By default, grep prints the most recent revision number for each
     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.
 
     PATTERN can be any Python (roughly Perl-compatible) regular
     expression.
 
     If no FILEs are specified (and -f/--follow isn't set), all files in
     the repository are searched, including those that don't exist in the
     current branch or have been deleted in a prior changeset.
 
     Returns 0 if a match is found, 1 otherwise.
     """
     opts = pycompat.byteskwargs(opts)
     reflags = re.M
     if opts.get('ignore_case'):
         reflags |= re.I
     try:
         regexp = util.re.compile(pattern, reflags)
     except re.error as inst:
         ui.warn(_("grep: invalid match pattern: %s\n") % inst)
         return 1
     sep, eol = ':', '\n'
     if opts.get('print0'):
         sep = eol = '\0'
 
     getfile = util.lrucachefunc(repo.file)
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while begin < len(body):
             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
             begin = body.find('\n', mend) + 1 or len(body) + 1
             lend = begin - 1
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
 
     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
 
         def findpos(self):
             """Iterate all (start, end) indices of matches"""
             yield self.colstart, self.colend
             p = self.colend
             while p < len(self.line):
                 m = regexp.search(self.line, p)
                 if not m:
                     break
                 yield m.span()
                 p = m.end()
 
     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])
 
     def display(fm, fn, ctx, pstates, states):
         rev = ctx.rev()
         if fm.isplain():
             formatuser = ui.shortuser
         else:
             formatuser = str
         if ui.quiet:
             datefmt = '%Y-%m-%d'
         else:
             datefmt = '%a %b %d %H:%M:%S %Y %1%2'
         found = False
         @util.cachefunc
         def binary():
             flog = getfile(fn)
             return util.binary(flog.read(ctx.filenode(fn)))
 
         fieldnamemap = {'filename': 'file', 'linenumber': 'line_number'}
         if opts.get('all'):
             iter = difflinestates(pstates, states)
         else:
             iter = [('', l) for l in states]
         for change, l in iter:
             fm.startitem()
             fm.data(node=fm.hexfunc(ctx.node()))
             cols = [
                 ('filename', fn, True),
                 ('rev', rev, True),
                 ('linenumber', l.linenum, opts.get('line_number')),
             ]
             if opts.get('all'):
                 cols.append(('change', change, True))
             cols.extend([
                 ('user', formatuser(ctx.user()), opts.get('user')),
                 ('date', fm.formatdate(ctx.date(), datefmt), opts.get('date')),
             ])
             lastcol = next(name for name, data, cond in reversed(cols) if cond)
             for name, data, cond in cols:
                 field = fieldnamemap.get(name, name)
                 fm.condwrite(cond, field, '%s', data, label='grep.%s' % name)
                 if cond and name != lastcol:
                     fm.plain(sep, label='grep.sep')
             if not opts.get('files_with_matches'):
                 fm.plain(sep, label='grep.sep')
                 if not opts.get('text') and binary():
                     fm.plain(_(" Binary file matches"))
                 else:
                     displaymatches(fm.nested('texts'), l)
             fm.plain(eol)
             found = True
             if opts.get('files_with_matches'):
                 break
         return found
 
     def displaymatches(fm, l):
         p = 0
         for s, e in l.findpos():
             if p < s:
                 fm.startitem()
                 fm.write('text', '%s', l.line[p:s])
                 fm.data(matched=False)
             fm.startitem()
             fm.write('text', '%s', l.line[s:e], label='grep.match')
             fm.data(matched=True)
             p = e
         if p < len(l.line):
             fm.startitem()
             fm.write('text', '%s', l.line[p:])
             fm.data(matched=False)
         fm.end()
 
     skip = {}
     revfiles = {}
     matchfn = scmutil.match(repo[None], pats, opts)
     found = False
     follow = opts.get('follow')
 
     def prep(ctx, fns):
         rev = ctx.rev()
         pctx = ctx.p1()
         parent = pctx.rev()
         matches.setdefault(rev, {})
         matches.setdefault(parent, {})
         files = revfiles.setdefault(rev, [])
         for fn in fns:
             flog = getfile(fn)
             try:
                 fnode = ctx.filenode(fn)
             except error.LookupError:
                 continue
 
             copied = flog.renamed(fnode)
             copy = follow and copied and copied[0]
             if copy:
                 copies.setdefault(rev, {})[fn] = copy
             if fn in skip:
                 if copy:
                     skip[copy] = True
                 continue
             files.append(fn)
 
             if fn not in matches[rev]:
                 grepbody(fn, rev, flog.read(fnode))
 
             pfn = copy or fn
             if pfn not in matches[parent]:
                 try:
                     fnode = pctx.filenode(pfn)
                     grepbody(pfn, parent, flog.read(fnode))
                 except error.LookupError:
                     pass
 
     ui.pager('grep')
     fm = ui.formatter('grep', opts)
     for ctx in cmdutil.walkchangerevs(repo, matchfn, opts, prep):
         rev = ctx.rev()
         parent = ctx.p1().rev()
         for fn in sorted(revfiles.get(rev, [])):
             states = matches[rev][fn]
             copy = copies.get(rev, {}).get(fn)
             if fn in skip:
                 if copy:
                     skip[copy] = True
                 continue
             pstates = matches.get(parent, {}).get(copy or fn, [])
             if pstates or states:
                 r = display(fm, fn, ctx, pstates, states)
                 found = found or r
                 if r and not opts.get('all'):
                     skip[fn] = True
                     if copy:
                         skip[copy] = True
         del matches[rev]
         del revfiles[rev]
     fm.end()
 
     return not found
 
 @command('heads',
     [('r', 'rev', '',
      _('show only heads which are descendants of STARTREV'), _('STARTREV')),
     ('t', 'topo', False, _('show topological heads only')),
     ('a', 'active', False, _('show active branchheads only (DEPRECATED)')),
     ('c', 'closed', False, _('show normal and closed branch heads')),
     ] + templateopts,
     _('[-ct] [-r STARTREV] [REV]...'))
 def heads(ui, repo, *branchrevs, **opts):
     """show branch heads
 
     With no arguments, show all open branch heads in the repository.
     Branch heads are changesets that have no descendants on the
     same branch. They are where development generally takes place and
     are the usual targets for update and merge operations.
 
     If one or more REVs are given, only open branch heads on the
     branches associated with the specified changesets are shown. This
     means that you can use :hg:`heads .` to see the heads on the
     currently checked-out branch.
 
     If -c/--closed is specified, also show branch heads marked closed
     (see :hg:`commit --close-branch`).
 
     If STARTREV is specified, only those heads that are descendants of
     STARTREV will be displayed.
 
     If -t/--topo is specified, named branch mechanics will be ignored and only
     topological heads (changesets with no children) will be shown.
 
     Returns 0 if matching heads are found, 1 if not.
     """
 
     opts = pycompat.byteskwargs(opts)
     start = None
     if 'rev' in opts:
         start = scmutil.revsingle(repo, opts['rev'], None).node()
 
     if opts.get('topo'):
         heads = [repo[h] for h in repo.heads(start)]
     else:
         heads = []
         for branch in repo.branchmap():
             heads += repo.branchheads(branch, start, opts.get('closed'))
         heads = [repo[h] for h in heads]
 
     if branchrevs:
         branches = set(repo[br].branch() for br in branchrevs)
         heads = [h for h in heads if h.branch() in branches]
 
     if opts.get('active') and branchrevs:
         dagheads = repo.heads(start)
         heads = [h for h in heads if h.node() in dagheads]
 
     if branchrevs:
         haveheads = set(h.branch() for h in heads)
         if branches - haveheads:
             headless = ', '.join(b for b in branches - haveheads)
             msg = _('no open branch heads found on branches %s')
             if opts.get('rev'):
                 msg += _(' (started at %s)') % opts['rev']
             ui.warn((msg + '\n') % headless)
 
     if not heads:
         return 1
 
     ui.pager('heads')
     heads = sorted(heads, key=lambda x: -x.rev())
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for ctx in heads:
         displayer.show(ctx)
     displayer.close()
 
 @command('help',
     [('e', 'extension', None, _('show only help for extensions')),
      ('c', 'command', None, _('show only help for commands')),
      ('k', 'keyword', None, _('show topics matching keyword')),
      ('s', 'system', [], _('show help for specific platform(s)')),
      ],
     _('[-ecks] [TOPIC]'),
     norepo=True)
 def help_(ui, name=None, **opts):
     """show help for a given topic or a help overview
 
     With no arguments, print a list of commands with short help messages.
 
     Given a topic, extension, or command name, print help for that
     topic.
 
     Returns 0 if successful.
     """
 
     keep = opts.get(r'system') or []
     if len(keep) == 0:
         if pycompat.sysplatform.startswith('win'):
             keep.append('windows')
         elif pycompat.sysplatform == 'OpenVMS':
             keep.append('vms')
         elif pycompat.sysplatform == 'plan9':
             keep.append('plan9')
         else:
             keep.append('unix')
             keep.append(pycompat.sysplatform.lower())
     if ui.verbose:
         keep.append('verbose')
 
     commands = sys.modules[__name__]
     formatted = help.formattedhelp(ui, commands, name, keep=keep, **opts)
     ui.pager('help')
     ui.write(formatted)
 
 
 @command('identify|id',
     [('r', 'rev', '',
      _('identify the specified revision'), _('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')),
     ('B', 'bookmarks', None, _('show bookmarks')),
     ] + remoteopts + formatteropts,
     _('[-nibtB] [-r REV] [SOURCE]'),
     optionalrepo=True)
 def identify(ui, repo, source=None, rev=None,
              num=None, id=None, branch=None, tags=None, bookmarks=None, **opts):
     """identify the working directory or specified revision
 
     Print a summary identifying the repository state at REV using one or
     two parent hash identifiers, followed by a "+" if the working
     directory has uncommitted changes, the branch name (if not default),
     a list of tags, and a list of bookmarks.
 
     When REV is not given, print a summary of the current state of the
     repository.
 
     Specifying a path to a repository root or Mercurial bundle will
     cause lookup to operate on that repository/bundle.
 
     .. container:: verbose
 
       Examples:
 
       - generate a build identifier for the working directory::
 
           hg id --id > build-id.dat
 
       - find the revision corresponding to a tag::
 
           hg id -n -r 1.3
 
       - check the most recent revision of a remote repository::
 
           hg id -r tip https://www.mercurial-scm.org/repo/hg/
 
     See :hg:`log` for generating more information about specific revisions,
     including full hash identifiers.
 
     Returns 0 if successful.
     """
 
     opts = pycompat.byteskwargs(opts)
     if not repo and not source:
         raise error.Abort(_("there is no Mercurial repository here "
                            "(.hg not found)"))
 
     if ui.debugflag:
         hexfunc = hex
     else:
         hexfunc = short
     default = not (num or id or branch or tags or bookmarks)
     output = []
     revs = []
 
     if source:
         source, branches = hg.parseurl(ui.expandpath(source))
         peer = hg.peer(repo or ui, opts, source) # only pass ui when no repo
         repo = peer.local()
         revs, checkout = hg.addbranchrevs(repo, peer, branches, None)
 
     fm = ui.formatter('identify', opts)
     fm.startitem()
 
     if not repo:
         if num or branch or tags:
             raise error.Abort(
                 _("can't query remote revision number, branch, or tags"))
         if not rev and revs:
             rev = revs[0]
         if not rev:
             rev = "tip"
 
         remoterev = peer.lookup(rev)
         hexrev = hexfunc(remoterev)
         if default or id:
             output = [hexrev]
         fm.data(id=hexrev)
 
         def getbms():
             bms = []
 
             if 'bookmarks' in peer.listkeys('namespaces'):
                 hexremoterev = hex(remoterev)
                 bms = [bm for bm, bmr in peer.listkeys('bookmarks').iteritems()
                        if bmr == hexremoterev]
 
             return sorted(bms)
 
         bms = getbms()
         if bookmarks:
             output.extend(bms)
         elif default and not ui.quiet:
             # multiple bookmarks for a single parent separated by '/'
             bm = '/'.join(bms)
             if bm:
                 output.append(bm)
 
         fm.data(node=hex(remoterev))
         fm.data(bookmarks=fm.formatlist(bms, name='bookmark'))
     else:
         ctx = scmutil.revsingle(repo, rev, None)
 
         if ctx.rev() is None:
             ctx = repo[None]
             parents = ctx.parents()
             taglist = []
             for p in parents:
                 taglist.extend(p.tags())
 
             dirty = ""
             if ctx.dirty(missing=True, merge=False, branch=False):
                 dirty = '+'
             fm.data(dirty=dirty)
 
             hexoutput = [hexfunc(p.node()) for p in parents]
             if default or id:
                 output = ["%s%s" % ('+'.join(hexoutput), dirty)]
             fm.data(id="%s%s" % ('+'.join(hexoutput), dirty))
 
             if num:
                 numoutput = ["%d" % p.rev() for p in parents]
                 output.append("%s%s" % ('+'.join(numoutput), dirty))
 
             fn = fm.nested('parents')
             for p in parents:
                 fn.startitem()
                 fn.data(rev=p.rev())
                 fn.data(node=p.hex())
                 fn.context(ctx=p)
             fn.end()
         else:
             hexoutput = hexfunc(ctx.node())
             if default or id:
                 output = [hexoutput]
             fm.data(id=hexoutput)
 
             if num:
                 output.append(pycompat.bytestr(ctx.rev()))
             taglist = ctx.tags()
 
         if default and not ui.quiet:
             b = ctx.branch()
             if b != 'default':
                 output.append("(%s)" % b)
 
             # multiple tags for a single parent separated by '/'
             t = '/'.join(taglist)
             if t:
                 output.append(t)
 
             # multiple bookmarks for a single parent separated by '/'
             bm = '/'.join(ctx.bookmarks())
             if bm:
                 output.append(bm)
         else:
             if branch:
                 output.append(ctx.branch())
 
             if tags:
                 output.extend(taglist)
 
             if bookmarks:
                 output.extend(ctx.bookmarks())
 
         fm.data(node=ctx.hex())
         fm.data(branch=ctx.branch())
         fm.data(tags=fm.formatlist(taglist, name='tag', sep=':'))
         fm.data(bookmarks=fm.formatlist(ctx.bookmarks(), name='bookmark'))
         fm.context(ctx=ctx)
 
     fm.plain("%s\n" % ' '.join(output))
     fm.end()
 
 @command('import|patch',
     [('p', 'strip', 1,
      _('directory strip option for patch. This has the same '
        'meaning as the corresponding patch option'), _('NUM')),
     ('b', 'base', '', _('base path (DEPRECATED)'), _('PATH')),
     ('e', 'edit', False, _('invoke editor on commit messages')),
     ('f', 'force', None,
      _('skip check for outstanding uncommitted changes (DEPRECATED)')),
     ('', 'no-commit', None,
      _("don't commit, just update the working directory")),
     ('', 'bypass', None,
      _("apply patch without touching the working directory")),
     ('', 'partial', None,
      _('commit even if some hunks fail')),
     ('', 'exact', None,
      _('abort if patch would apply lossily')),
     ('', 'prefix', '',
      _('apply patch to subdirectory'), _('DIR')),
     ('', 'import-branch', None,
      _('use any branch information in patch (implied by --exact)'))] +
     commitopts + commitopts2 + similarityopts,
     _('[OPTION]... PATCH...'))
 def import_(ui, repo, patch1=None, *patches, **opts):
     """import an ordered set of patches
 
     Import a list of patches and commit them individually (unless
     --no-commit is specified).
 
     To read a patch from standard input (stdin), use "-" as the patch
     name. If a URL is specified, the patch will be downloaded from
     there.
 
     Import first applies changes to the working directory (unless
     --bypass is specified), import will abort if there are outstanding
     changes.
 
     Use --bypass to apply and commit patches directly to the
     repository, without affecting the working directory. Without
     --exact, patches will be applied on top of the working directory
     parent revision.
 
     You can import a patch straight from a mail message. Even patches
     as attachments work (to use the body part, it must have type
     text/plain or text/x-patch). 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 the 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/--message and -u/--user
     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 will guard against various ways that portable
     patch formats and mail systems might fail to transfer Mercurial
     data or metadata. See :hg:`bundle` for lossless transmission.
 
     Use --partial to ensure a changeset will be created from the patch
     even if some hunks fail to apply. Hunks that fail to apply will be
     written to a <target-file>.rej file. Conflicts can then be resolved
     by hand before :hg:`commit --amend` is run to update the created
     changeset. This flag exists to let people import patches that
     partially apply without losing the associated metadata (author,
     date, description, ...).
 
     .. note::
 
        When no hunks apply cleanly, :hg:`import --partial` will create
        an empty changeset, importing only the patch metadata.
 
     With -s/--similarity, hg will attempt to discover renames and
     copies in the patch in the same way as :hg:`addremove`.
 
     It is possible to use external patch programs to perform the patch
     by setting the ``ui.patch`` configuration option. For the default
     internal tool, the fuzz can also be configured via ``patch.fuzz``.
     See :hg:`help config` for more information about configuration
     files and how to use these options.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     .. container:: verbose
 
       Examples:
 
       - import a traditional patch from a website and detect renames::
 
           hg import -s 80 http://example.com/bugfix.patch
 
       - import a changeset from an hgweb server::
 
           hg import https://www.mercurial-scm.org/repo/hg/rev/5ca8c111e9aa
 
       - import all the patches in an Unix-style mbox::
 
           hg import incoming-patches.mbox
 
       - import patches from stdin::
 
           hg import -
 
       - attempt to exactly restore an exported changeset (not always
         possible)::
 
           hg import --exact proposed-fix.patch
 
       - use an external tool to apply a patch which is too fuzzy for
         the default internal tool.
 
           hg import --config ui.patch="patch --merge" fuzzy.patch
 
       - change the default fuzzing from 2 to a less strict 7
 
           hg import --config ui.fuzz=7 fuzz.patch
 
     Returns 0 on success, 1 on partial success (see --partial).
     """
 
     opts = pycompat.byteskwargs(opts)
     if not patch1:
         raise error.Abort(_('need at least one patch to import'))
 
     patches = (patch1,) + patches
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     exact = opts.get('exact')
     update = not opts.get('bypass')
     if not update and opts.get('no_commit'):
         raise error.Abort(_('cannot use --no-commit with --bypass'))
     try:
         sim = float(opts.get('similarity') or 0)
     except ValueError:
         raise error.Abort(_('similarity must be a number'))
     if sim < 0 or sim > 100:
         raise error.Abort(_('similarity must be between 0 and 100'))
     if sim and not update:
         raise error.Abort(_('cannot use --similarity with --bypass'))
     if exact:
         if opts.get('edit'):
             raise error.Abort(_('cannot use --exact with --edit'))
         if opts.get('prefix'):
             raise error.Abort(_('cannot use --exact with --prefix'))
 
     base = opts["base"]
     wlock = dsguard = lock = tr = None
     msgs = []
     ret = 0
 
 
     try:
         wlock = repo.wlock()
 
         if update:
             cmdutil.checkunfinished(repo)
             if (exact or not opts.get('force')):
                 cmdutil.bailifchanged(repo)
 
         if not opts.get('no_commit'):
             lock = repo.lock()
             tr = repo.transaction('import')
         else:
             dsguard = dirstateguard.dirstateguard(repo, 'import')
         parents = repo[None].parents()
         for patchurl in patches:
             if patchurl == '-':
                 ui.status(_('applying patch from stdin\n'))
                 patchfile = ui.fin
                 patchurl = 'stdin'      # for error message
             else:
                 patchurl = os.path.join(base, patchurl)
                 ui.status(_('applying %s\n') % patchurl)
                 patchfile = hg.openpath(ui, patchurl)
 
             haspatch = False
             for hunk in patch.split(patchfile):
                 (msg, node, rej) = cmdutil.tryimportone(ui, repo, hunk,
                                                         parents, opts,
                                                         msgs, hg.clean)
                 if msg:
                     haspatch = True
                     ui.note(msg + '\n')
                 if update or exact:
                     parents = repo[None].parents()
                 else:
                     parents = [repo[node]]
                 if rej:
                     ui.write_err(_("patch applied partially\n"))
                     ui.write_err(_("(fix the .rej files and run "
                                    "`hg commit --amend`)\n"))
                     ret = 1
                     break
 
             if not haspatch:
                 raise error.Abort(_('%s: no diffs found') % patchurl)
 
         if tr:
             tr.close()
         if msgs:
             repo.savecommitmessage('\n* * *\n'.join(msgs))
         if dsguard:
             dsguard.close()
         return ret
     finally:
         if tr:
             tr.release()
         release(lock, dsguard, wlock)
 
 @command('incoming|in',
     [('f', 'force', None,
      _('run even if remote repository is unrelated')),
     ('n', 'newest-first', None, _('show newest record first')),
     ('', 'bundle', '',
      _('file to store the bundles into'), _('FILE')),
     ('r', 'rev', [], _('a remote changeset intended to be added'), _('REV')),
     ('B', 'bookmarks', False, _("compare bookmarks")),
     ('b', 'branch', [],
      _('a specific branch you would like to pull'), _('BRANCH')),
     ] + logopts + remoteopts + subrepoopts,
     _('[-p] [-n] [-M] [-f] [-r REV]... [--bundle FILENAME] [SOURCE]'))
 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 have been pulled
     if a pull at the time you issued this command.
 
     See pull for valid source format details.
 
     .. container:: verbose
 
       With -B/--bookmarks, the result of bookmark comparison between
       local and remote repositories is displayed. With -v/--verbose,
       status is also displayed for each bookmark like below::
 
         BM1               01234567890a added
         BM2               1234567890ab advanced
         BM3               234567890abc diverged
         BM4               34567890abcd changed
 
       The action taken locally when pulling depends on the
       status of each bookmark:
 
       :``added``: pull will create it
       :``advanced``: pull will update it
       :``diverged``: pull will create a divergent bookmark
       :``changed``: result depends on remote changesets
 
       From the point of view of pulling behavior, bookmark
       existing only in the remote repository are treated as ``added``,
       even if it is in fact locally deleted.
 
     .. container:: verbose
 
       For remote repository, using --bundle avoids downloading the
       changesets twice if the incoming is followed by a pull.
 
       Examples:
 
       - show incoming changes with patches and full description::
 
           hg incoming -vp
 
       - show incoming changes excluding merges, store a bundle::
 
           hg in -vpM --bundle incoming.hg
           hg pull incoming.hg
 
       - briefly list changes inside a bundle::
 
           hg in changes.hg -T "{desc|firstline}\\n"
 
     Returns 0 if there are incoming changes, 1 otherwise.
     """
     opts = pycompat.byteskwargs(opts)
     if opts.get('graph'):
         cmdutil.checkunsupportedgraphflags([], opts)
         def display(other, chlist, displayer):
             revdag = cmdutil.graphrevs(other, chlist, opts)
             cmdutil.displaygraph(ui, repo, revdag, displayer,
                                  graphmod.asciiedges)
 
         hg._incoming(display, lambda: 1, ui, repo, source, opts, buffered=True)
         return 0
 
     if opts.get('bundle') and opts.get('subrepos'):
         raise error.Abort(_('cannot combine --bundle and --subrepos'))
 
     if opts.get('bookmarks'):
         source, branches = hg.parseurl(ui.expandpath(source),
                                        opts.get('branch'))
         other = hg.peer(repo, opts, source)
         if 'bookmarks' not in other.listkeys('namespaces'):
             ui.warn(_("remote doesn't support bookmarks\n"))
             return 0
         ui.pager('incoming')
         ui.status(_('comparing with %s\n') % util.hidepassword(source))
         return bookmarks.incoming(ui, repo, other)
 
     repo._subtoppath = ui.expandpath(source)
     try:
         return hg.incoming(ui, repo, source, opts)
     finally:
         del repo._subtoppath
 
 
 @command('^init', remoteopts, _('[-e CMD] [--remotecmd CMD] [DEST]'),
          norepo=True)
 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 will be created.
 
     If no directory is given, the current directory is used.
 
     It is possible to specify an ``ssh://`` URL as the destination.
     See :hg:`help urls` for more information.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     hg.peer(ui, opts, ui.expandpath(dest), create=True)
 
 @command('locate',
     [('r', 'rev', '', _('search the repository as it is in REV'), _('REV')),
     ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
     ('f', 'fullpath', None, _('print complete paths from the filesystem root')),
     ] + walkopts,
     _('[OPTION]... [PATTERN]...'))
 def locate(ui, repo, *pats, **opts):
     """locate files matching specific patterns (DEPRECATED)
 
     Print files under Mercurial control in the working directory whose
     names match the given patterns.
 
     By default, this command searches all directories in the working
     directory. To search just the current directory and its
     subdirectories, use "--include .".
 
     If no patterns are given to match, this command prints the names
     of all files under Mercurial control in the working directory.
 
     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 whitespace as multiple filenames.
 
     See :hg:`help files` for a more versatile command.
 
     Returns 0 if a match is found, 1 otherwise.
     """
     opts = pycompat.byteskwargs(opts)
     if opts.get('print0'):
         end = '\0'
     else:
         end = '\n'
     rev = scmutil.revsingle(repo, opts.get('rev'), None).node()
 
     ret = 1
     ctx = repo[rev]
     m = scmutil.match(ctx, pats, opts, default='relglob',
                       badfn=lambda x, y: False)
 
     ui.pager('locate')
     for abs in ctx.matches(m):
         if opts.get('fullpath'):
             ui.write(repo.wjoin(abs), end)
         else:
             ui.write(((pats and m.rel(abs)) or abs), end)
         ret = 0
 
     return ret
 
 @command('^log|history',
     [('f', 'follow', None,
      _('follow changeset history, or file history across copies and renames')),
     ('', 'follow-first', None,
      _('only follow the first parent of merge changesets (DEPRECATED)')),
     ('d', 'date', '', _('show revisions matching date spec'), _('DATE')),
     ('C', 'copies', None, _('show copied files')),
     ('k', 'keyword', [],
      _('do case-insensitive search for a given text'), _('TEXT')),
     ('r', 'rev', [], _('show the specified revision or revset'), _('REV')),
     ('', 'removed', None, _('include revisions where files were removed')),
     ('m', 'only-merges', None, _('show only merges (DEPRECATED)')),
     ('u', 'user', [], _('revisions committed by user'), _('USER')),
     ('', 'only-branch', [],
      _('show only changesets within the given named branch (DEPRECATED)'),
      _('BRANCH')),
     ('b', 'branch', [],
      _('show changesets within the given named branch'), _('BRANCH')),
     ('P', 'prune', [],
      _('do not display revision or any of its ancestors'), _('REV')),
     ] + logopts + walkopts,
     _('[OPTION]... [FILE]'),
     inferrepo=True)
 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.
 
     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.
 
     File history is shown without following rename or copy history of
     files. Use -f/--follow with a filename to follow history across
     renames and copies. --follow without a filename will only show
     ancestors or descendants of the starting revision.
 
     By default this command prints revision number and changeset id,
     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 are shown.
 
     With --graph the revisions are shown as an ASCII art DAG with the most
     recent changeset at the top.
     'o' is a changeset, '@' is a working directory parent, 'x' is obsolete,
     and '+' represents a fork where the changeset from the lines below is a
     parent of the 'o' merge on the same line.
     Paths in the DAG are represented with '|', '/' and so forth. ':' in place
     of a '|' indicates one or more revisions in a path are omitted.
 
     .. note::
 
        :hg:`log --patch` may generate unexpected diff output for merge
        changesets, as it will only compare the merge changeset against
        its first parent. Also, only files different from BOTH parents
        will appear in files:.
 
     .. note::
 
        For performance reasons, :hg:`log FILE` may omit duplicate changes
        made on branches and will not show removals or mode changes. To
        see all such changes, use the --removed switch.
 
     .. container:: verbose
 
       Some examples:
 
       - changesets with full descriptions and file lists::
 
           hg log -v
 
       - changesets ancestral to the working directory::
 
           hg log -f
 
       - last 10 commits on the current branch::
 
           hg log -l 10 -b .
 
       - changesets showing all modifications of a file, including removals::
 
           hg log --removed file.c
 
       - all changesets that touch a directory, with diffs, excluding merges::
 
           hg log -Mp lib/
 
       - all revision numbers that match a keyword::
 
           hg log -k bug --template "{rev}\\n"
 
       - the full hash identifier of the working directory parent::
 
           hg log -r . --template "{node}\\n"
 
       - list available log templates::
 
           hg log -T list
 
       - check if a given changeset is included in a tagged release::
 
           hg log -r "a21ccf and ancestor(1.9)"
 
       - find all changesets by some user in a date range::
 
           hg log -k alice -d "may 2008 to jul 2008"
 
       - summary of all changesets after the last tag::
 
           hg log -r "last(tagged())::" --template "{desc|firstline}\\n"
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     See :hg:`help revisions` for more about specifying and ordering
     revisions.
 
     See :hg:`help templates` for more about pre-packaged styles and
     specifying custom templates.
 
     Returns 0 on success.
 
     """
     opts = pycompat.byteskwargs(opts)
     if opts.get('follow') and opts.get('rev'):
         opts['rev'] = [revsetlang.formatspec('reverse(::%lr)', opts.get('rev'))]
         del opts['follow']
 
     if opts.get('graph'):
         return cmdutil.graphlog(ui, repo, pats, opts)
 
     revs, expr, filematcher = cmdutil.getlogrevs(repo, pats, opts)
     limit = cmdutil.loglimit(opts)
     count = 0
 
     getrenamed = None
     if opts.get('copies'):
         endrev = None
         if opts.get('rev'):
             endrev = scmutil.revrange(repo, opts.get('rev')).max() + 1
         getrenamed = templatekw.getrenamedfn(repo, endrev=endrev)
 
     ui.pager('log')
     displayer = cmdutil.show_changeset(ui, repo, opts, buffered=True)
     for rev in revs:
         if count == limit:
             break
         ctx = repo[rev]
         copies = None
         if getrenamed is not None and rev:
             copies = []
             for fn in ctx.files():
                 rename = getrenamed(fn, rev)
                 if rename:
                     copies.append((fn, rename[0]))
         if filematcher:
             revmatchfn = filematcher(ctx.rev())
         else:
             revmatchfn = None
         displayer.show(ctx, copies=copies, matchfn=revmatchfn)
         if displayer.flush(ctx):
             count += 1
 
     displayer.close()
 
 @command('manifest',
     [('r', 'rev', '', _('revision to display'), _('REV')),
      ('', 'all', False, _("list files from all revisions"))]
          + formatteropts,
     _('[-r REV]'))
 def manifest(ui, repo, node=None, rev=None, **opts):
     """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 first parent of the working directory
     is used, or the null revision if no revision is checked out.
 
     With -v, print file permissions, symlink and executable bits.
     With --debug, print file revision hashes.
 
     If option --all is specified, the list of all files from all revisions
     is printed. This includes deleted and renamed files.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     fm = ui.formatter('manifest', opts)
 
     if opts.get('all'):
         if rev or node:
             raise error.Abort(_("can't specify a revision with --all"))
 
         res = []
         prefix = "data/"
         suffix = ".i"
         plen = len(prefix)
         slen = len(suffix)
         with repo.lock():
             for fn, b, size in repo.store.datafiles():
                 if size != 0 and fn[-slen:] == suffix and fn[:plen] == prefix:
                     res.append(fn[plen:-slen])
         ui.pager('manifest')
         for f in res:
             fm.startitem()
             fm.write("path", '%s\n', f)
         fm.end()
         return
 
     if rev and node:
         raise error.Abort(_("please specify just one revision"))
 
     if not node:
         node = rev
 
     char = {'l': '@', 'x': '*', '': ''}
     mode = {'l': '644', 'x': '755', '': '644'}
     ctx = scmutil.revsingle(repo, node)
     mf = ctx.manifest()
     ui.pager('manifest')
     for f in ctx:
         fm.startitem()
         fl = ctx[f].flags()
         fm.condwrite(ui.debugflag, 'hash', '%s ', hex(mf[f]))
         fm.condwrite(ui.verbose, 'mode type', '%s %1s ', mode[fl], char[fl])
         fm.write('path', '%s\n', f)
     fm.end()
 
 @command('^merge',
     [('f', 'force', None,
       _('force a merge including outstanding changes (DEPRECATED)')),
     ('r', 'rev', '', _('revision to merge'), _('REV')),
     ('P', 'preview', None,
      _('review revisions to merge (no merge is performed)'))
      ] + mergetoolopts,
     _('[-P] [[-r] REV]'))
 def merge(ui, repo, node=None, **opts):
     """merge another revision into working directory
 
     The current working directory is updated with all changes made in
     the requested revision since the last common predecessor 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 to the repository are allowed. The next commit will have
     two parents.
 
     ``--tool`` can be used to specify the merge tool used for file
     merges. It overrides the HGMERGE environment variable and your
     configuration files. See :hg:`help merge-tools` for options.
 
     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 with which to merge with must be provided.
 
     See :hg:`help resolve` for information on handling file conflicts.
 
     To undo an uncommitted merge, use :hg:`update --clean .` which
     will check out a clean copy of the original merge parent, losing
     all changes.
 
     Returns 0 on success, 1 if there are unresolved files.
     """
 
     opts = pycompat.byteskwargs(opts)
     if opts.get('rev') and node:
         raise error.Abort(_("please specify just one revision"))
     if not node:
         node = opts.get('rev')
 
     if node:
         node = scmutil.revsingle(repo, node).node()
 
     if not node:
         node = repo[destutil.destmerge(repo)].node()
 
     if opts.get('preview'):
         # find nodes that are ancestors of p2 but not of p1
         p1 = repo.lookup('.')
         p2 = repo.lookup(node)
         nodes = repo.changelog.findmissing(common=[p1], heads=[p2])
 
         displayer = cmdutil.show_changeset(ui, repo, opts)
         for node in nodes:
             displayer.show(repo[node])
         displayer.close()
         return 0
 
     try:
         # ui.forcemerge is an internal variable, do not document
         repo.ui.setconfig('ui', 'forcemerge', opts.get('tool', ''), 'merge')
         force = opts.get('force')
         labels = ['working copy', 'merge rev']
         return hg.merge(repo, node, force=force, mergeforce=force,
                         labels=labels)
     finally:
         ui.setconfig('ui', 'forcemerge', '', 'merge')
 
 @command('outgoing|out',
     [('f', 'force', None, _('run even when the destination is unrelated')),
     ('r', 'rev', [],
      _('a changeset intended to be included in the destination'), _('REV')),
     ('n', 'newest-first', None, _('show newest record first')),
     ('B', 'bookmarks', False, _('compare bookmarks')),
     ('b', 'branch', [], _('a specific branch you would like to push'),
      _('BRANCH')),
     ] + logopts + remoteopts + subrepoopts,
     _('[-M] [-p] [-n] [-f] [-r REV]... [DEST]'))
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in the 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 details of valid destination formats.
 
     .. container:: verbose
 
       With -B/--bookmarks, the result of bookmark comparison between
       local and remote repositories is displayed. With -v/--verbose,
       status is also displayed for each bookmark like below::
 
         BM1               01234567890a added
         BM2                            deleted
         BM3               234567890abc advanced
         BM4               34567890abcd diverged
         BM5               4567890abcde changed
 
       The action taken when pushing depends on the
       status of each bookmark:
 
       :``added``: push with ``-B`` will create it
       :``deleted``: push with ``-B`` will delete it
       :``advanced``: push will update it
       :``diverged``: push with ``-B`` will update it
       :``changed``: push with ``-B`` will update it
 
       From the point of view of pushing behavior, bookmarks
       existing only in the remote repository are treated as
       ``deleted``, even if it is in fact added remotely.
 
     Returns 0 if there are outgoing changes, 1 otherwise.
     """
     opts = pycompat.byteskwargs(opts)
     if opts.get('graph'):
         cmdutil.checkunsupportedgraphflags([], opts)
         o, other = hg._outgoing(ui, repo, dest, opts)
         if not o:
             cmdutil.outgoinghooks(ui, repo, other, opts, o)
             return
 
         revdag = cmdutil.graphrevs(repo, o, opts)
         ui.pager('outgoing')
         displayer = cmdutil.show_changeset(ui, repo, opts, buffered=True)
         cmdutil.displaygraph(ui, repo, revdag, displayer, graphmod.asciiedges)
         cmdutil.outgoinghooks(ui, repo, other, opts, o)
         return 0
 
     if opts.get('bookmarks'):
         dest = ui.expandpath(dest or 'default-push', dest or 'default')
         dest, branches = hg.parseurl(dest, opts.get('branch'))
         other = hg.peer(repo, opts, dest)
         if 'bookmarks' not in other.listkeys('namespaces'):
             ui.warn(_("remote doesn't support bookmarks\n"))
             return 0
         ui.status(_('comparing with %s\n') % util.hidepassword(dest))
         ui.pager('outgoing')
         return bookmarks.outgoing(ui, repo, other)
 
     repo._subtoppath = ui.expandpath(dest or 'default-push', dest or 'default')
     try:
         return hg.outgoing(ui, repo, dest, opts)
     finally:
         del repo._subtoppath
 
 @command('parents',
     [('r', 'rev', '', _('show parents of the specified revision'), _('REV')),
     ] + templateopts,
     _('[-r REV] [FILE]'),
     inferrepo=True)
 def parents(ui, repo, file_=None, **opts):
     """show the parents of the working directory or revision (DEPRECATED)
 
     Print the working directory's parent revisions. If a revision is
     given via -r/--rev, the parent of that revision will be printed.
     If a file argument is given, the revision in which the file was
     last changed (before the working directory revision or the
     argument to --rev if given) is printed.
 
     This command is equivalent to::
 
         hg log -r "p1()+p2()" or
         hg log -r "p1(REV)+p2(REV)" or
         hg log -r "max(::p1() and file(FILE))+max(::p2() and file(FILE))" or
         hg log -r "max(::p1(REV) and file(FILE))+max(::p2(REV) and file(FILE))"
 
     See :hg:`summary` and :hg:`help revsets` for related information.
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get('rev'), None)
 
     if file_:
         m = scmutil.match(ctx, (file_,), opts)
         if m.anypats() or len(m.files()) != 1:
             raise error.Abort(_('can only specify an explicit filename'))
         file_ = m.files()[0]
         filenodes = []
         for cp in ctx.parents():
             if not cp:
                 continue
             try:
                 filenodes.append(cp.filenode(file_))
             except error.LookupError:
                 pass
         if not filenodes:
             raise error.Abort(_("'%s' not found in manifest!") % file_)
         p = []
         for fn in filenodes:
             fctx = repo.filectx(file_, fileid=fn)
             p.append(fctx.node())
     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(repo[n])
     displayer.close()
 
 @command('paths', formatteropts, _('[NAME]'), optionalrepo=True)
 def paths(ui, repo, search=None, **opts):
     """show aliases for remote repositories
 
     Show definition of symbolic path name NAME. If no name is given,
     show definition of all available names.
 
     Option -q/--quiet suppresses all output when searching for NAME
     and shows only the path names when listing all definitions.
 
     Path names are defined in the [paths] section of your
     configuration file and in ``/etc/mercurial/hgrc``. If run inside a
     repository, ``.hg/hgrc`` is used, too.
 
     The path names ``default`` and ``default-push`` have a special
     meaning.  When performing a push or pull operation, they are used
     as fallbacks if no location is specified on the command-line.
     When ``default-push`` is set, it will be used for push and
     ``default`` will be used for pull; otherwise ``default`` is used
     as the fallback for both.  When cloning a repository, the clone
     source is written as ``default`` in ``.hg/hgrc``.
 
     .. note::
 
        ``default`` and ``default-push`` apply to all inbound (e.g.
        :hg:`incoming`) and outbound (e.g. :hg:`outgoing`, :hg:`email`
        and :hg:`bundle`) operations.
 
     See :hg:`help urls` for more information.
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     ui.pager('paths')
     if search:
         pathitems = [(name, path) for name, path in ui.paths.iteritems()
                      if name == search]
     else:
         pathitems = sorted(ui.paths.iteritems())
 
     fm = ui.formatter('paths', opts)
     if fm.isplain():
         hidepassword = util.hidepassword
     else:
         hidepassword = str
     if ui.quiet:
         namefmt = '%s\n'
     else:
         namefmt = '%s = '
     showsubopts = not search and not ui.quiet
 
     for name, path in pathitems:
         fm.startitem()
         fm.condwrite(not search, 'name', namefmt, name)
         fm.condwrite(not ui.quiet, 'url', '%s\n', hidepassword(path.rawloc))
         for subopt, value in sorted(path.suboptions.items()):
             assert subopt not in ('name', 'url')
             if showsubopts:
                 fm.plain('%s:%s = ' % (name, subopt))
             fm.condwrite(showsubopts, subopt, '%s\n', value)
 
     fm.end()
 
     if search and not pathitems:
         if not ui.quiet:
             ui.warn(_("not found!\n"))
         return 1
     else:
         return 0
 
 @command('phase',
     [('p', 'public', False, _('set changeset phase to public')),
      ('d', 'draft', False, _('set changeset phase to draft')),
      ('s', 'secret', False, _('set changeset phase to secret')),
      ('f', 'force', False, _('allow to move boundary backward')),
      ('r', 'rev', [], _('target revision'), _('REV')),
     ],
     _('[-p|-d|-s] [-f] [-r] [REV...]'))
 def phase(ui, repo, *revs, **opts):
     """set or show the current phase name
 
     With no argument, show the phase name of the current revision(s).
 
     With one of -p/--public, -d/--draft or -s/--secret, change the
     phase value of the specified revisions.
 
     Unless -f/--force is specified, :hg:`phase` won't move changeset from a
     lower phase to an higher phase. Phases are ordered as follows::
 
         public < draft < secret
 
     Returns 0 on success, 1 if some phases could not be changed.
 
     (For more information about the phases concept, see :hg:`help phases`.)
     """
     opts = pycompat.byteskwargs(opts)
     # search for a unique phase argument
     targetphase = None
     for idx, name in enumerate(phases.phasenames):
         if opts[name]:
             if targetphase is not None:
                 raise error.Abort(_('only one phase can be specified'))
             targetphase = idx
 
     # look for specified revision
     revs = list(revs)
     revs.extend(opts['rev'])
     if not revs:
         # display both parents as the second parent phase can influence
         # the phase of a merge commit
         revs = [c.rev() for c in repo[None].parents()]
 
     revs = scmutil.revrange(repo, revs)
 
     lock = None
     ret = 0
     if targetphase is None:
         # display
         for r in revs:
             ctx = repo[r]
             ui.write('%i: %s\n' % (ctx.rev(), ctx.phasestr()))
     else:
         tr = None
         lock = repo.lock()
         try:
             tr = repo.transaction("phase")
             # set phase
             if not revs:
                 raise error.Abort(_('empty revision set'))
             nodes = [repo[r].node() for r in revs]
             # moving revision from public to draft may hide them
             # We have to check result on an unfiltered repository
             unfi = repo.unfiltered()
             getphase = unfi._phasecache.phase
             olddata = [getphase(unfi, r) for r in unfi]
             phases.advanceboundary(repo, tr, targetphase, nodes)
             if opts['force']:
                 phases.retractboundary(repo, tr, targetphase, nodes)
             tr.close()
         finally:
             if tr is not None:
                 tr.release()
             lock.release()
         getphase = unfi._phasecache.phase
         newdata = [getphase(unfi, r) for r in unfi]
         changes = sum(newdata[r] != olddata[r] for r in unfi)
         cl = unfi.changelog
         rejected = [n for n in nodes
                     if newdata[cl.rev(n)] < targetphase]
         if rejected:
             ui.warn(_('cannot move %i changesets to a higher '
                       'phase, use --force\n') % len(rejected))
             ret = 1
         if changes:
             msg = _('phase changed for %i changesets\n') % changes
             if ret:
                 ui.status(msg)
             else:
                 ui.note(msg)
         else:
             ui.warn(_('no phases changed\n'))
     return ret
 
 def postincoming(ui, repo, modheads, optupdate, checkout, brev):
     """Run after a changegroup has been added via pull/unbundle
 
     This takes arguments below:
 
     :modheads: change of heads by pull/unbundle
     :optupdate: updating working directory is needed or not
     :checkout: update destination revision (or None to default destination)
     :brev: a name, which might be a bookmark to be activated after updating
     """
     if modheads == 0:
         return
     if optupdate:
         try:
             return hg.updatetotally(ui, repo, checkout, brev)
         except error.UpdateAbort as inst:
             msg = _("not updating: %s") % str(inst)
             hint = inst.hint
             raise error.UpdateAbort(msg, hint=hint)
     if modheads > 1:
         currentbranchheads = len(repo.branchheads())
         if currentbranchheads == modheads:
             ui.status(_("(run 'hg heads' to see heads, 'hg merge' to merge)\n"))
         elif currentbranchheads > 1:
             ui.status(_("(run 'hg heads .' to see heads, 'hg merge' to "
                         "merge)\n"))
         else:
             ui.status(_("(run 'hg heads' to see heads)\n"))
     else:
         ui.status(_("(run 'hg update' to get a working copy)\n"))
 
 @command('^pull',
     [('u', 'update', None,
      _('update to new branch head if changesets were pulled')),
     ('f', 'force', None, _('run even when remote repository is unrelated')),
     ('r', 'rev', [], _('a remote changeset intended to be added'), _('REV')),
     ('B', 'bookmark', [], _("bookmark to pull"), _('BOOKMARK')),
     ('b', 'branch', [], _('a specific branch you would like to pull'),
      _('BRANCH')),
     ] + remoteopts,
     _('[-u] [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [SOURCE]'))
 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 a local repository (the current one unless
     -R is specified). By default, this does not update the copy of the
     project in the working directory.
 
     Use :hg:`incoming` if you want to see what would have been added
     by a pull at the time you issued this command. If you then decide
     to add those changes to the repository, you should use :hg:`pull
     -r X` where ``X`` is the last changeset listed by :hg:`incoming`.
 
     If SOURCE is omitted, the 'default' path will be used.
     See :hg:`help urls` for more information.
 
     Specifying bookmark as ``.`` is equivalent to specifying the active
     bookmark's name.
 
     Returns 0 on success, 1 if an update had unresolved files.
     """
 
     opts = pycompat.byteskwargs(opts)
     if ui.configbool('commands', 'update.requiredest') and opts.get('update'):
         msg = _('update destination required by configuration')
         hint = _('use hg pull followed by hg update DEST')
         raise error.Abort(msg, hint=hint)
 
     source, branches = hg.parseurl(ui.expandpath(source), opts.get('branch'))
     ui.status(_('pulling from %s\n') % util.hidepassword(source))
     other = hg.peer(repo, opts, source)
     try:
         revs, checkout = hg.addbranchrevs(repo, other, branches,
                                           opts.get('rev'))
 
 
         pullopargs = {}
         if opts.get('bookmark'):
             if not revs:
                 revs = []
             # The list of bookmark used here is not the one used to actually
             # update the bookmark name. This can result in the revision pulled
             # not ending up with the name of the bookmark because of a race
             # condition on the server. (See issue 4689 for details)
             remotebookmarks = other.listkeys('bookmarks')
             pullopargs['remotebookmarks'] = remotebookmarks
             for b in opts['bookmark']:
                 b = repo._bookmarks.expandname(b)
                 if b not in remotebookmarks:
                     raise error.Abort(_('remote bookmark %s not found!') % b)
                 revs.append(remotebookmarks[b])
 
         if revs:
             try:
                 # When 'rev' is a bookmark name, we cannot guarantee that it
                 # will be updated with that name because of a race condition
                 # server side. (See issue 4689 for details)
                 oldrevs = revs
                 revs = [] # actually, nodes
                 for r in oldrevs:
                     node = other.lookup(r)
                     revs.append(node)
                     if r == checkout:
                         checkout = node
             except error.CapabilityError:
                 err = _("other repository doesn't support revision lookup, "
                         "so a rev cannot be specified.")
                 raise error.Abort(err)
 
         pullopargs.update(opts.get('opargs', {}))
         modheads = exchange.pull(repo, other, heads=revs,
                                  force=opts.get('force'),
                                  bookmarks=opts.get('bookmark', ()),
                                  opargs=pullopargs).cgresult
 
         # brev is a name, which might be a bookmark to be activated at
         # the end of the update. In other words, it is an explicit
         # destination of the update
         brev = None
 
         if checkout:
             checkout = str(repo.changelog.rev(checkout))
 
             # order below depends on implementation of
             # hg.addbranchrevs(). opts['bookmark'] is ignored,
             # because 'checkout' is determined without it.
             if opts.get('rev'):
                 brev = opts['rev'][0]
             elif opts.get('branch'):
                 brev = opts['branch'][0]
             else:
                 brev = branches[0]
         repo._subtoppath = source
         try:
             ret = postincoming(ui, repo, modheads, opts.get('update'),
                                checkout, brev)
 
         finally:
             del repo._subtoppath
 
     finally:
         other.close()
     return ret
 
 @command('^push',
     [('f', 'force', None, _('force push')),
     ('r', 'rev', [],
      _('a changeset intended to be included in the destination'),
      _('REV')),
     ('B', 'bookmark', [], _("bookmark to push"), _('BOOKMARK')),
     ('b', 'branch', [],
      _('a specific branch you would like to push'), _('BRANCH')),
     ('', 'new-branch', False, _('allow pushing a new branch')),
     ] + remoteopts,
     _('[-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]'))
 def push(ui, repo, dest=None, **opts):
     """push changes to the specified destination
 
     Push changesets from the local repository to the specified
     destination.
 
     This operation is symmetrical to pull: it is identical to a pull
     in the destination repository from the current one.
 
     By default, push will not allow creation of new heads at the
     destination, since multiple heads would make it unclear which head
     to use. In this situation, it is recommended to pull and merge
     before pushing.
 
     Use --new-branch if you want to allow push to create a new named
     branch that is not present at the destination. This allows you to
     only create a new branch without forcing other changes.
 
     .. note::
 
        Extra care should be taken with the -f/--force option,
        which will push all new heads on all branches, an action which will
        almost always cause confusion for collaborators.
 
     If -r/--rev is used, the specified revision and all its ancestors
     will be pushed to the remote repository.
 
     If -B/--bookmark is used, the specified bookmarked revision, its
     ancestors, and the bookmark will be pushed to the remote
     repository. Specifying ``.`` is equivalent to specifying the active
     bookmark's name.
 
     Please see :hg:`help urls` for important details about ``ssh://``
     URLs. If DESTINATION is omitted, a default path will be used.
 
     Returns 0 if push was successful, 1 if nothing to push.
     """
 
     opts = pycompat.byteskwargs(opts)
     if opts.get('bookmark'):
         ui.setconfig('bookmarks', 'pushing', opts['bookmark'], 'push')
         for b in opts['bookmark']:
             # translate -B options to -r so changesets get pushed
             b = repo._bookmarks.expandname(b)
             if b in repo._bookmarks:
                 opts.setdefault('rev', []).append(b)
             else:
                 # if we try to push a deleted bookmark, translate it to null
                 # this lets simultaneous -r, -b options continue working
                 opts.setdefault('rev', []).append("null")
 
     path = ui.paths.getpath(dest, default=('default-push', 'default'))
     if not path:
         raise error.Abort(_('default repository not configured!'),
                          hint=_("see 'hg help config.paths'"))
     dest = path.pushloc or path.loc
     branches = (path.branch, opts.get('branch') or [])
     ui.status(_('pushing to %s\n') % util.hidepassword(dest))
     revs, checkout = hg.addbranchrevs(repo, repo, branches, opts.get('rev'))
     other = hg.peer(repo, opts, dest)
 
     if revs:
         revs = [repo.lookup(r) for r in scmutil.revrange(repo, revs)]
         if not revs:
             raise error.Abort(_("specified revisions evaluate to an empty set"),
                              hint=_("use different revision arguments"))
     elif path.pushrev:
         # It doesn't make any sense to specify ancestor revisions. So limit
         # to DAG heads to make discovery simpler.
         expr = revsetlang.formatspec('heads(%r)', path.pushrev)
         revs = scmutil.revrange(repo, [expr])
         revs = [repo[rev].node() for rev in revs]
         if not revs:
             raise error.Abort(_('default push revset for path evaluates to an '
                                 'empty set'))
 
     repo._subtoppath = dest
     try:
         # push subrepos depth-first for coherent ordering
         c = repo['']
         subs = c.substate # only repos that are committed
         for s in sorted(subs):
             result = c.sub(s).push(opts)
             if result == 0:
                 return not result
     finally:
         del repo._subtoppath
     pushop = exchange.push(repo, other, opts.get('force'), revs=revs,
                            newbranch=opts.get('new_branch'),
                            bookmarks=opts.get('bookmark', ()),
                            opargs=opts.get('opargs'))
 
     result = not pushop.cgresult
 
     if pushop.bkresult is not None:
         if pushop.bkresult == 2:
             result = 2
         elif not result and pushop.bkresult:
             result = 2
 
     return result
 
 @command('recover', [])
 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.
 
     Returns 0 if successful, 1 if nothing to recover or verify fails.
     """
     if repo.recover():
         return hg.verify(repo)
     return 1
 
 @command('^remove|rm',
     [('A', 'after', None, _('record delete for missing files')),
     ('f', 'force', None,
      _('forget added files, delete modified files')),
     ] + subrepoopts + walkopts,
     _('[OPTION]... FILE...'),
     inferrepo=True)
 def remove(ui, repo, *pats, **opts):
     """remove the specified files on the next commit
 
     Schedule the indicated files for removal from the current branch.
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see :hg:`revert`. To undo added
     files, see :hg:`forget`.
 
     .. container:: verbose
 
       -A/--after can be used to remove only files that have already
       been deleted, -f/--force can be used to force deletion, and -Af
       can be used to remove files from the next revision without
       deleting them from the working directory.
 
       The following table details the behavior of remove for different
       file states (columns) and option combinations (rows). The file
       states are Added [A], Clean [C], Modified [M] and Missing [!]
       (as reported by :hg:`status`). The actions are Warn, Remove
       (from branch) and Delete (from disk):
 
       ========= == == == ==
       opt/state A  C  M  !
       ========= == == == ==
       none      W  RD W  R
       -f        R  RD RD R
       -A        W  W  W  R
       -Af       R  R  R  R
       ========= == == == ==
 
       .. note::
 
          :hg:`remove` never deletes files in Added [A] state from the
          working directory, not even if ``--force`` is specified.
 
     Returns 0 on success, 1 if any warnings encountered.
     """
 
     opts = pycompat.byteskwargs(opts)
     after, force = opts.get('after'), opts.get('force')
     if not pats and not after:
         raise error.Abort(_('no files specified'))
 
     m = scmutil.match(repo[None], pats, opts)
     subrepos = opts.get('subrepos')
     return cmdutil.remove(ui, repo, m, "", after, force, subrepos)
 
 @command('rename|move|mv',
     [('A', 'after', None, _('record a rename that has already occurred')),
     ('f', 'force', None, _('forcibly copy over an existing managed file')),
     ] + walkopts + dryrunopts,
     _('[OPTION]... SOURCE... DEST'))
 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
     exist in the working directory. If invoked with -A/--after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect at the next commit. To undo a rename
     before that, see :hg:`revert`.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     opts = pycompat.byteskwargs(opts)
     with repo.wlock(False):
         return cmdutil.copy(ui, repo, pats, opts, rename=True)
 
 @command('resolve',
     [('a', 'all', None, _('select all unresolved files')),
     ('l', 'list', None, _('list state of files needing merge')),
     ('m', 'mark', None, _('mark files as resolved')),
     ('u', 'unmark', None, _('mark files as unresolved')),
     ('n', 'no-status', None, _('hide status prefix'))]
     + mergetoolopts + walkopts + formatteropts,
     _('[OPTION]... [FILE]...'),
     inferrepo=True)
 def resolve(ui, repo, *pats, **opts):
     """redo merges or set/view the merge status of files
 
     Merges with unresolved conflicts are often the result of
     non-interactive merging using the ``internal:merge`` configuration
     setting, or a command-line merge tool like ``diff3``. The resolve
     command is used to manage the files involved in a merge, after
     :hg:`merge` has been run, and before :hg:`commit` is run (i.e. the
     working directory must have two parents). See :hg:`help
     merge-tools` for information on configuring merge tools.
 
     The resolve command can be used in the following ways:
 
     - :hg:`resolve [--tool TOOL] FILE...`: attempt to re-merge the specified
       files, discarding any previous merge attempts. Re-merging is not
       performed for files already marked as resolved. Use ``--all/-a``
       to select all unresolved files. ``--tool`` can be used to specify
       the merge tool used for the given files. It overrides the HGMERGE
       environment variable and your configuration files.  Previous file
       contents are saved with a ``.orig`` suffix.
 
     - :hg:`resolve -m [FILE]`: mark a file as having been resolved
       (e.g. after having manually fixed-up the files). The default is
       to mark all unresolved files.
 
     - :hg:`resolve -u [FILE]...`: mark a file as unresolved. The
       default is to mark all resolved files.
 
     - :hg:`resolve -l`: list files which had or still have conflicts.
       In the printed list, ``U`` = unresolved and ``R`` = resolved.
       You can use ``set:unresolved()`` or ``set:resolved()`` to filter
       the list. See :hg:`help filesets` for details.
 
     .. note::
 
        Mercurial will not let you commit files with unresolved merge
        conflicts. You must use :hg:`resolve -m ...` before you can
        commit after a conflicting merge.
 
     Returns 0 on success, 1 if any files fail a resolve attempt.
     """
 
     opts = pycompat.byteskwargs(opts)
     flaglist = 'all mark unmark list no_status'.split()
     all, mark, unmark, show, nostatus = \
         [opts.get(o) for o in flaglist]
 
     if (show and (mark or unmark)) or (mark and unmark):
         raise error.Abort(_("too many options specified"))
     if pats and all:
         raise error.Abort(_("can't specify --all and patterns"))
     if not (all or pats or show or mark or unmark):
         raise error.Abort(_('no files or directories specified'),
                          hint=('use --all to re-merge all unresolved files'))
 
     if show:
         ui.pager('resolve')
         fm = ui.formatter('resolve', opts)
         ms = mergemod.mergestate.read(repo)
         m = scmutil.match(repo[None], pats, opts)
         for f in ms:
             if not m(f):
                 continue
             l = 'resolve.' + {'u': 'unresolved', 'r': 'resolved',
                               'd': 'driverresolved'}[ms[f]]
             fm.startitem()
             fm.condwrite(not nostatus, 'status', '%s ', ms[f].upper(), label=l)
             fm.write('path', '%s\n', f, label=l)
         fm.end()
         return 0
 
     with repo.wlock():
         ms = mergemod.mergestate.read(repo)
 
         if not (ms.active() or repo.dirstate.p2() != nullid):
             raise error.Abort(
                 _('resolve command not applicable when not merging'))
 
         wctx = repo[None]
 
         if ms.mergedriver and ms.mdstate() == 'u':
             proceed = mergemod.driverpreprocess(repo, ms, wctx)
             ms.commit()
             # allow mark and unmark to go through
             if not mark and not unmark and not proceed:
                 return 1
 
         m = scmutil.match(wctx, pats, opts)
         ret = 0
         didwork = False
         runconclude = False
 
         tocomplete = []
         for f in ms:
             if not m(f):
                 continue
 
             didwork = True
 
             # don't let driver-resolved files be marked, and run the conclude
             # step if asked to resolve
             if ms[f] == "d":
                 exact = m.exact(f)
                 if mark:
                     if exact:
                         ui.warn(_('not marking %s as it is driver-resolved\n')
                                 % f)
                 elif unmark:
                     if exact:
                         ui.warn(_('not unmarking %s as it is driver-resolved\n')
                                 % f)
                 else:
                     runconclude = True
                 continue
 
             if mark:
                 ms.mark(f, "r")
             elif unmark:
                 ms.mark(f, "u")
             else:
                 # backup pre-resolve (merge uses .orig for its own purposes)
                 a = repo.wjoin(f)
                 try:
                     util.copyfile(a, a + ".resolve")
                 except (IOError, OSError) as inst:
                     if inst.errno != errno.ENOENT:
                         raise
 
                 try:
                     # preresolve file
                     ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                                  'resolve')
                     complete, r = ms.preresolve(f, wctx)
                     if not complete:
                         tocomplete.append(f)
                     elif r:
                         ret = 1
                 finally:
                     ui.setconfig('ui', 'forcemerge', '', 'resolve')
                     ms.commit()
 
                 # replace filemerge's .orig file with our resolve file, but only
                 # for merges that are complete
                 if complete:
                     try:
                         util.rename(a + ".resolve",
                                     scmutil.origpath(ui, repo, a))
                     except OSError as inst:
                         if inst.errno != errno.ENOENT:
                             raise
 
         for f in tocomplete:
             try:
                 # resolve file
                 ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                              'resolve')
                 r = ms.resolve(f, wctx)
                 if r:
                     ret = 1
             finally:
                 ui.setconfig('ui', 'forcemerge', '', 'resolve')
                 ms.commit()
 
             # replace filemerge's .orig file with our resolve file
             a = repo.wjoin(f)
             try:
                 util.rename(a + ".resolve", scmutil.origpath(ui, repo, a))
             except OSError as inst:
                 if inst.errno != errno.ENOENT:
                     raise
 
         ms.commit()
         ms.recordactions()
 
         if not didwork and pats:
             hint = None
             if not any([p for p in pats if p.find(':') >= 0]):
                 pats = ['path:%s' % p for p in pats]
                 m = scmutil.match(wctx, pats, opts)
                 for f in ms:
                     if not m(f):
                         continue
                     flags = ''.join(['-%s ' % o[0] for o in flaglist
                                                    if opts.get(o)])
                     hint = _("(try: hg resolve %s%s)\n") % (
                              flags,
                              ' '.join(pats))
                     break
             ui.warn(_("arguments do not match paths that need resolving\n"))
             if hint:
                 ui.warn(hint)
         elif ms.mergedriver and ms.mdstate() != 's':
             # run conclude step when either a driver-resolved file is requested
             # or there are no driver-resolved files
             # we can't use 'ret' to determine whether any files are unresolved
             # because we might not have tried to resolve some
             if ((runconclude or not list(ms.driverresolved()))
                 and not list(ms.unresolved())):
                 proceed = mergemod.driverconclude(repo, ms, wctx)
                 ms.commit()
                 if not proceed:
                     return 1
 
     # Nudge users into finishing an unfinished operation
     unresolvedf = list(ms.unresolved())
     driverresolvedf = list(ms.driverresolved())
     if not unresolvedf and not driverresolvedf:
         ui.status(_('(no more unresolved files)\n'))
         cmdutil.checkafterresolved(repo)
     elif not unresolvedf:
         ui.status(_('(no more unresolved files -- '
                     'run "hg resolve --all" to conclude)\n'))
 
     return ret
 
 @command('revert',
     [('a', 'all', None, _('revert all changes when no arguments given')),
     ('d', 'date', '', _('tipmost revision matching date'), _('DATE')),
     ('r', 'rev', '', _('revert to the specified revision'), _('REV')),
     ('C', 'no-backup', None, _('do not save backup copies of files')),
     ('i', 'interactive', None,
             _('interactively select the changes (EXPERIMENTAL)')),
     ] + walkopts + dryrunopts,
     _('[OPTION]... [-r REV] [NAME]...'))
 def revert(ui, repo, *pats, **opts):
     """restore files to their checkout state
 
     .. note::
 
        To check out earlier revisions, you should use :hg:`update REV`.
        To cancel an uncommitted merge (and lose your changes),
        use :hg:`update --clean .`.
 
     With no revision specified, revert the specified files or directories
     to the contents they had in the parent of the working directory.
     This restores the contents of files to an unmodified
     state and unschedules adds, removes, copies, and renames. If the
     working directory has two parents, you must explicitly specify a
     revision.
 
     Using the -r/--rev or -d/--date options, revert the given files or
     directories to their states as of a specific revision. Because
     revert does not change the working directory parents, this will
     cause these files to appear modified. This can be helpful to "back
     out" some or all of an earlier change. See :hg:`backout` for a
     related method.
 
     Modified files are saved with a .orig suffix before reverting.
     To disable these backups, use --no-backup. It is possible to store
     the backup files in a custom directory relative to the root of the
     repository by setting the ``ui.origbackuppath`` configuration
     option.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     See :hg:`help backout` for a way to reverse the effect of an
     earlier changeset.
 
     Returns 0 on success.
     """
 
     if opts.get("date"):
         if opts.get("rev"):
             raise error.Abort(_("you can't specify a revision and a date"))
         opts["rev"] = cmdutil.finddate(ui, repo, opts["date"])
 
     parent, p2 = repo.dirstate.parents()
     if not opts.get('rev') and p2 != nullid:
         # revert after merge is a trap for new users (issue2915)
         raise error.Abort(_('uncommitted merge with no revision specified'),
                          hint=_("use 'hg update' or see 'hg help revert'"))
 
     ctx = scmutil.revsingle(repo, opts.get('rev'))
 
     if (not (pats or opts.get('include') or opts.get('exclude') or
              opts.get('all') or opts.get('interactive'))):
         msg = _("no files or directories specified")
         if p2 != nullid:
             hint = _("uncommitted merge, use --all to discard all changes,"
                      " or 'hg update -C .' to abort the merge")
             raise error.Abort(msg, hint=hint)
         dirty = any(repo.status())
         node = ctx.node()
         if node != parent:
             if dirty:
                 hint = _("uncommitted changes, use --all to discard all"
                          " changes, or 'hg update %s' to update") % ctx.rev()
             else:
                 hint = _("use --all to revert all files,"
                          " or 'hg update %s' to update") % ctx.rev()
         elif dirty:
             hint = _("uncommitted changes, use --all to discard all changes")
         else:
             hint = _("use --all to revert all files")
         raise error.Abort(msg, hint=hint)
 
     return cmdutil.revert(ui, repo, ctx, (parent, p2), *pats, **opts)
 
 @command('rollback', dryrunopts +
          [('f', 'force', False, _('ignore safety measures'))])
 def rollback(ui, repo, **opts):
     """roll back the last transaction (DANGEROUS) (DEPRECATED)
 
     Please use :hg:`commit --amend` instead of rollback to correct
     mistakes in the last commit.
 
     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. This command does not alter
     the working directory.
 
     Transactions are used to encapsulate the effects of all commands
     that create new changesets or propagate existing changesets into a
     repository.
 
     .. container:: verbose
 
       For example, the following commands are transactional, and their
       effects can be rolled back:
 
       - commit
       - import
       - pull
       - push (with this repository as the destination)
       - unbundle
 
       To avoid permanent data loss, rollback will refuse to rollback a
       commit transaction if it isn't checked out. Use --force to
       override this protection.
 
       The rollback command can be entirely disabled by setting the
       ``ui.rollback`` configuration setting to false. If you're here
       because you want to use rollback and it's disabled, you can
       re-enable the command by setting ``ui.rollback`` to true.
 
     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.
 
     Returns 0 on success, 1 if no rollback data is available.
     """
     if not ui.configbool('ui', 'rollback'):
         raise error.Abort(_('rollback is disabled because it is unsafe'),
                           hint=('see `hg help -v rollback` for information'))
     return repo.rollback(dryrun=opts.get(r'dry_run'),
                          force=opts.get(r'force'))
 
 @command('root', [])
 def root(ui, repo):
     """print the root (top) of the current working directory
 
     Print the root directory of the current repository.
 
     Returns 0 on success.
     """
     ui.write(repo.root + "\n")
 
 @command('^serve',
     [('A', 'accesslog', '', _('name of access log file to write to'),
      _('FILE')),
     ('d', 'daemon', None, _('run server in background')),
     ('', 'daemon-postexec', [], _('used internally by daemon mode')),
     ('E', 'errorlog', '', _('name of error log file to write to'), _('FILE')),
     # use string type, then we can check if something was passed
     ('p', 'port', '', _('port to listen on (default: 8000)'), _('PORT')),
     ('a', 'address', '', _('address to listen on (default: all interfaces)'),
      _('ADDR')),
     ('', 'prefix', '', _('prefix path to serve from (default: server root)'),
      _('PREFIX')),
     ('n', 'name', '',
      _('name to show in web pages (default: working directory)'), _('NAME')),
     ('', 'web-conf', '',
      _("name of the hgweb config file (see 'hg help hgweb')"), _('FILE')),
     ('', 'webdir-conf', '', _('name of the hgweb config file (DEPRECATED)'),
      _('FILE')),
     ('', 'pid-file', '', _('name of file to write process ID to'), _('FILE')),
     ('', 'stdio', None, _('for remote clients (ADVANCED)')),
     ('', 'cmdserver', '', _('for remote clients (ADVANCED)'), _('MODE')),
     ('t', 'templates', '', _('web templates to use'), _('TEMPLATE')),
     ('', 'style', '', _('template style to use'), _('STYLE')),
     ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
     ('', 'certificate', '', _('SSL certificate file'), _('FILE'))]
      + subrepoopts,
     _('[OPTION]...'),
     optionalrepo=True)
 def serve(ui, repo, **opts):
     """start stand-alone webserver
 
     Start a local HTTP repository browser and pull server. You can use
     this for ad-hoc sharing and browsing of repositories. It is
     recommended to use a real web server to serve a repository for
     longer periods of time.
 
     Please note that the server does not implement access control.
     This means that, by default, anybody can read from the server and
     nobody can write to it by default. Set the ``web.allow_push``
     option to ``*`` to allow everybody to push to the server. You
     should use a real web server if you need to authenticate users.
 
     By default, the server logs accesses to stdout and errors to
     stderr. Use the -A/--accesslog and -E/--errorlog options to log to
     files.
 
     To have the server choose a free port number to listen on, specify
     a port number of 0; in this case, the server will print the port
     number it uses.
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     if opts["stdio"] and opts["cmdserver"]:
         raise error.Abort(_("cannot use --stdio with --cmdserver"))
 
     if opts["stdio"]:
         if repo is None:
             raise error.RepoError(_("there is no Mercurial repository here"
                                     " (.hg not found)"))
         s = sshserver.sshserver(ui, repo)
         s.serve_forever()
 
     service = server.createservice(ui, repo, opts)
     return server.runservice(opts, initfn=service.init, runfn=service.run)
 
 @command('^status|st',
     [('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')),
     ('t', 'terse', '', _('show the terse output (EXPERIMENTAL)')),
     ('C', 'copies', None, _('show source of copied files')),
     ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
     ('', 'rev', [], _('show difference from revision'), _('REV')),
     ('', 'change', '', _('list the changed files of a revision'), _('REV')),
     ] + walkopts + subrepoopts + formatteropts,
     _('[OPTION]... [FILE]...'),
     inferrepo=True)
 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
     the source of a copy/move operation, are not listed unless
     -c/--clean, -i/--ignored, -C/--copies or -A/--all are 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::
 
        :hg:`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 differences between them are
     shown. The --change option can also be used as a shortcut to list
     the changed files of a revision from its first parent.
 
     The codes used to show the status of files are::
 
       M = modified
       A = added
       R = removed
       C = clean
       ! = missing (deleted by non-hg command, but still tracked)
       ? = not tracked
       I = ignored
         = origin of the previous file (with --copies)
 
     .. container:: verbose
 
       The -t/--terse option abbreviates the output by showing directory name
       if all the files in it share the same status. The option expects a value
       which can be a string formed by using 'm', 'a', 'r', 'd', 'u', 'i', 'c'
       where, 'm' stands for 'modified', 'a' for 'added', 'r' for 'removed',
       'd' for 'deleted', 'u' for 'unknown', 'i' for 'ignored' and 'c' for clean.
 
       It terses the output of only those status which are passed. The ignored
       files are not considered while tersing until 'i' is there in --terse value
       or the --ignored option is used.
 
       Examples:
 
       - show changes in the working directory relative to a
         changeset::
 
           hg status --rev 9353
 
       - show changes in the working directory relative to the
         current directory (see :hg:`help patterns` for more information)::
 
           hg status re:
 
       - show all changes including copies in an existing changeset::
 
           hg status --copies --change 9353
 
       - get a NUL separated list of added files, suitable for xargs::
 
           hg status -an0
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     revs = opts.get('rev')
     change = opts.get('change')
     terse = opts.get('terse')
 
     if revs and change:
         msg = _('cannot specify --rev and --change at the same time')
         raise error.Abort(msg)
     elif revs and terse:
         msg = _('cannot use --terse with --rev')
         raise error.Abort(msg)
     elif change:
         node2 = scmutil.revsingle(repo, change, None).node()
         node1 = repo[node2].p1().node()
     else:
         node1, node2 = scmutil.revpair(repo, revs)
 
     if pats or ui.configbool('commands', 'status.relative'):
         cwd = repo.getcwd()
     else:
         cwd = ''
 
     if opts.get('print0'):
         end = '\0'
     else:
         end = '\n'
     copy = {}
     states = 'modified added removed deleted unknown ignored clean'.split()
     show = [k for k in states if opts.get(k)]
     if opts.get('all'):
         show += ui.quiet and (states[:4] + ['clean']) or states
 
     if not show:
         if ui.quiet:
             show = states[:4]
         else:
             show = states[:5]
 
     m = scmutil.match(repo[node2], pats, opts)
     stat = repo.status(node1, node2, m,
                        'ignored' in show, 'clean' in show, 'unknown' in show,
                        opts.get('subrepos'))
     if terse:
         stat = cmdutil.tersestatus(repo.root, stat, terse,
                                     repo.dirstate._ignore, opts.get('ignored'))
     changestates = zip(states, pycompat.iterbytestr('MAR!?IC'), stat)
 
     if (opts.get('all') or opts.get('copies')
         or ui.configbool('ui', 'statuscopies')) and not opts.get('no_status'):
         copy = copies.pathcopies(repo[node1], repo[node2], m)
 
     ui.pager('status')
     fm = ui.formatter('status', opts)
     fmt = '%s' + end
     showchar = not opts.get('no_status')
 
     for state, char, files in changestates:
         if state in show:
             label = 'status.' + state
             for f in files:
                 fm.startitem()
                 fm.condwrite(showchar, 'status', '%s ', char, label=label)
                 fm.write('path', fmt, repo.pathto(f, cwd), label=label)
                 if f in copy:
                     fm.write("copy", '  %s' + end, repo.pathto(copy[f], cwd),
                              label='status.copied')
     fm.end()
 
 @command('^summary|sum',
     [('', 'remote', None, _('check for push and pull'))], '[--remote]')
 def summary(ui, repo, **opts):
     """summarize working directory state
 
     This generates a brief summary of the working directory state,
     including parents, branch, commit status, phase and available updates.
 
     With the --remote option, this will check the default paths for
     incoming and outgoing changes. This can be time-consuming.
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     ui.pager('summary')
     ctx = repo[None]
     parents = ctx.parents()
     pnode = parents[0].node()
     marks = []
 
     ms = None
     try:
         ms = mergemod.mergestate.read(repo)
     except error.UnsupportedMergeRecords as e:
         s = ' '.join(e.recordtypes)
         ui.warn(
             _('warning: merge state has unsupported record types: %s\n') % s)
         unresolved = []
     else:
         unresolved = list(ms.unresolved())
 
     for p in parents:
         # label with log.changeset (instead of log.parent) since this
         # shows a working directory parent *changeset*:
         # i18n: column positioning for "hg summary"
         ui.write(_('parent: %d:%s ') % (p.rev(), p),
                  label=cmdutil._changesetlabels(p))
         ui.write(' '.join(p.tags()), label='log.tag')
         if p.bookmarks():
             marks.extend(p.bookmarks())
         if p.rev() == -1:
             if not len(repo):
                 ui.write(_(' (empty repository)'))
             else:
                 ui.write(_(' (no revision checked out)'))
         if p.obsolete():
             ui.write(_(' (obsolete)'))
         if p.troubled():
             ui.write(' ('
                      + ', '.join(ui.label(trouble, 'trouble.%s' % trouble)
                                  for trouble in p.troubles())
                      + ')')
         ui.write('\n')
         if p.description():
             ui.status(' ' + p.description().splitlines()[0].strip() + '\n',
                       label='log.summary')
 
     branch = ctx.branch()
     bheads = repo.branchheads(branch)
     # i18n: column positioning for "hg summary"
     m = _('branch: %s\n') % branch
     if branch != 'default':
         ui.write(m, label='log.branch')
     else:
         ui.status(m, label='log.branch')
 
     if marks:
         active = repo._activebookmark
         # i18n: column positioning for "hg summary"
         ui.write(_('bookmarks:'), label='log.bookmark')
         if active is not None:
             if active in marks:
                 ui.write(' *' + active, label=bookmarks.activebookmarklabel)
                 marks.remove(active)
             else:
                 ui.write(' [%s]' % active, label=bookmarks.activebookmarklabel)
         for m in marks:
             ui.write(' ' + m, label='log.bookmark')
         ui.write('\n', label='log.bookmark')
 
     status = repo.status(unknown=True)
 
     c = repo.dirstate.copies()
     copied, renamed = [], []
     for d, s in c.iteritems():
         if s in status.removed:
             status.removed.remove(s)
             renamed.append(d)
         else:
             copied.append(d)
         if d in status.added:
             status.added.remove(d)
 
     subs = [s for s in ctx.substate if ctx.sub(s).dirty()]
 
     labels = [(ui.label(_('%d modified'), 'status.modified'), status.modified),
               (ui.label(_('%d added'), 'status.added'), status.added),
               (ui.label(_('%d removed'), 'status.removed'), status.removed),
               (ui.label(_('%d renamed'), 'status.copied'), renamed),
               (ui.label(_('%d copied'), 'status.copied'), copied),
               (ui.label(_('%d deleted'), 'status.deleted'), status.deleted),
               (ui.label(_('%d unknown'), 'status.unknown'), status.unknown),
               (ui.label(_('%d unresolved'), 'resolve.unresolved'), unresolved),
               (ui.label(_('%d subrepos'), 'status.modified'), subs)]
     t = []
     for l, s in labels:
         if s:
             t.append(l % len(s))
 
     t = ', '.join(t)
     cleanworkdir = False
 
     if repo.vfs.exists('graftstate'):
         t += _(' (graft in progress)')
     if repo.vfs.exists('updatestate'):
         t += _(' (interrupted update)')
     elif len(parents) > 1:
         t += _(' (merge)')
     elif branch != parents[0].branch():
         t += _(' (new branch)')
     elif (parents[0].closesbranch() and
           pnode in repo.branchheads(branch, closed=True)):
         t += _(' (head closed)')
     elif not (status.modified or status.added or status.removed or renamed or
               copied or subs):
         t += _(' (clean)')
         cleanworkdir = True
     elif pnode not in bheads:
         t += _(' (new branch head)')
 
     if parents:
         pendingphase = max(p.phase() for p in parents)
     else:
         pendingphase = phases.public
 
     if pendingphase > phases.newcommitphase(ui):
         t += ' (%s)' % phases.phasenames[pendingphase]
 
     if cleanworkdir:
         # i18n: column positioning for "hg summary"
         ui.status(_('commit: %s\n') % t.strip())
     else:
         # i18n: column positioning for "hg summary"
         ui.write(_('commit: %s\n') % t.strip())
 
     # all ancestors of branch heads - all ancestors of parent = new csets
     new = len(repo.changelog.findmissing([pctx.node() for pctx in parents],
                                          bheads))
 
     if new == 0:
         # i18n: column positioning for "hg summary"
         ui.status(_('update: (current)\n'))
     elif pnode not in bheads:
         # i18n: column positioning for "hg summary"
         ui.write(_('update: %d new changesets (update)\n') % new)
     else:
         # i18n: column positioning for "hg summary"
         ui.write(_('update: %d new changesets, %d branch heads (merge)\n') %
                  (new, len(bheads)))
 
     t = []
     draft = len(repo.revs('draft()'))
     if draft:
         t.append(_('%d draft') % draft)
     secret = len(repo.revs('secret()'))
     if secret:
         t.append(_('%d secret') % secret)
 
     if draft or secret:
         ui.status(_('phases: %s\n') % ', '.join(t))
 
     if obsolete.isenabled(repo, obsolete.createmarkersopt):
         for trouble in ("unstable", "divergent", "bumped"):
             numtrouble = len(repo.revs(trouble + "()"))
             # We write all the possibilities to ease translation
             troublemsg = {
                "unstable": _("orphan: %d changesets"),
-               "divergent": _("divergent: %d changesets"),
+               "divergent": _("content-divergent: %d changesets"),
                "bumped": _("bumped: %d changesets"),
             }
             if numtrouble > 0:
                 ui.status(troublemsg[trouble] % numtrouble + "\n")
 
     cmdutil.summaryhooks(ui, repo)
 
     if opts.get('remote'):
         needsincoming, needsoutgoing = True, True
     else:
         needsincoming, needsoutgoing = False, False
         for i, o in cmdutil.summaryremotehooks(ui, repo, opts, None):
             if i:
                 needsincoming = True
             if o:
                 needsoutgoing = True
         if not needsincoming and not needsoutgoing:
             return
 
     def getincoming():
         source, branches = hg.parseurl(ui.expandpath('default'))
         sbranch = branches[0]
         try:
             other = hg.peer(repo, {}, source)
         except error.RepoError:
             if opts.get('remote'):
                 raise
             return source, sbranch, None, None, None
         revs, checkout = hg.addbranchrevs(repo, other, branches, None)
         if revs:
             revs = [other.lookup(rev) for rev in revs]
         ui.debug('comparing with %s\n' % util.hidepassword(source))
         repo.ui.pushbuffer()
         commoninc = discovery.findcommonincoming(repo, other, heads=revs)
         repo.ui.popbuffer()
         return source, sbranch, other, commoninc, commoninc[1]
 
     if needsincoming:
         source, sbranch, sother, commoninc, incoming = getincoming()
     else:
         source = sbranch = sother = commoninc = incoming = None
 
     def getoutgoing():
         dest, branches = hg.parseurl(ui.expandpath('default-push', 'default'))
         dbranch = branches[0]
         revs, checkout = hg.addbranchrevs(repo, repo, branches, None)
         if source != dest:
             try:
                 dother = hg.peer(repo, {}, dest)
             except error.RepoError:
                 if opts.get('remote'):
                     raise
                 return dest, dbranch, None, None
             ui.debug('comparing with %s\n' % util.hidepassword(dest))
         elif sother is None:
             # there is no explicit destination peer, but source one is invalid
             return dest, dbranch, None, None
         else:
             dother = sother
         if (source != dest or (sbranch is not None and sbranch != dbranch)):
             common = None
         else:
             common = commoninc
         if revs:
             revs = [repo.lookup(rev) for rev in revs]
         repo.ui.pushbuffer()
         outgoing = discovery.findcommonoutgoing(repo, dother, onlyheads=revs,
                                                 commoninc=common)
         repo.ui.popbuffer()
         return dest, dbranch, dother, outgoing
 
     if needsoutgoing:
         dest, dbranch, dother, outgoing = getoutgoing()
     else:
         dest = dbranch = dother = outgoing = None
 
     if opts.get('remote'):
         t = []
         if incoming:
             t.append(_('1 or more incoming'))
         o = outgoing.missing
         if o:
             t.append(_('%d outgoing') % len(o))
         other = dother or sother
         if 'bookmarks' in other.listkeys('namespaces'):
             counts = bookmarks.summary(repo, other)
             if counts[0] > 0:
                 t.append(_('%d incoming bookmarks') % counts[0])
             if counts[1] > 0:
                 t.append(_('%d outgoing bookmarks') % counts[1])
 
         if t:
             # i18n: column positioning for "hg summary"
             ui.write(_('remote: %s\n') % (', '.join(t)))
         else:
             # i18n: column positioning for "hg summary"
             ui.status(_('remote: (synced)\n'))
 
     cmdutil.summaryremotehooks(ui, repo, opts,
                                ((source, sbranch, sother, commoninc),
                                 (dest, dbranch, dother, outgoing)))
 
 @command('tag',
     [('f', 'force', None, _('force tag')),
     ('l', 'local', None, _('make the tag local')),
     ('r', 'rev', '', _('revision to tag'), _('REV')),
     ('', 'remove', None, _('remove a tag')),
     # -l/--local is already there, commitopts cannot be used
     ('e', 'edit', None, _('invoke editor on commit messages')),
     ('m', 'message', '', _('use text as commit message'), _('TEXT')),
     ] + commitopts2,
     _('[-f] [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME...'))
 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. Changing
     an existing tag is normally disallowed; use -f/--force to override.
 
     If no revision is given, the parent of the working directory is
     used.
 
     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. This
     also means that tagging creates a new commit. The file
     ".hg/localtags" is used for local tags (not shared among
     repositories).
 
     Tag commits are usually made at the head of a branch. If the parent
     of the working directory is not a branch head, :hg:`tag` aborts; use
     -f/--force to force the tag commit to be based on a non-head
     changeset.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Since tag names have priority over branch names during revision
     lookup, using an existing branch name as a tag name is discouraged.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         rev_ = "."
         names = [t.strip() for t in (name1,) + names]
         if len(names) != len(set(names)):
             raise error.Abort(_('tag names must be unique'))
         for n in names:
             scmutil.checknewlabel(repo, n, 'tag')
             if not n:
                 raise error.Abort(_('tag names cannot consist entirely of '
                                    'whitespace'))
         if opts.get('rev') and opts.get('remove'):
             raise error.Abort(_("--rev and --remove are incompatible"))
         if opts.get('rev'):
             rev_ = opts['rev']
         message = opts.get('message')
         if opts.get('remove'):
             if opts.get('local'):
                 expectedtype = 'local'
             else:
                 expectedtype = 'global'
 
             for n in names:
                 if not repo.tagtype(n):
                     raise error.Abort(_("tag '%s' does not exist") % n)
                 if repo.tagtype(n) != expectedtype:
                     if expectedtype == 'global':
                         raise error.Abort(_("tag '%s' is not a global tag") % n)
                     else:
                         raise error.Abort(_("tag '%s' is not a local tag") % n)
             rev_ = 'null'
             if not message:
                 # we don't translate commit messages
                 message = 'Removed tag %s' % ', '.join(names)
         elif not opts.get('force'):
             for n in names:
                 if n in repo.tags():
                     raise error.Abort(_("tag '%s' already exists "
                                        "(use -f to force)") % n)
         if not opts.get('local'):
             p1, p2 = repo.dirstate.parents()
             if p2 != nullid:
                 raise error.Abort(_('uncommitted merge'))
             bheads = repo.branchheads()
             if not opts.get('force') and bheads and p1 not in bheads:
                 raise error.Abort(_('working directory is not at a branch head '
                                     '(use -f to force)'))
         r = scmutil.revsingle(repo, rev_).node()
 
         if not message:
             # we don't translate commit messages
             message = ('Added tag %s for changeset %s' %
                        (', '.join(names), short(r)))
 
         date = opts.get('date')
         if date:
             date = util.parsedate(date)
 
         if opts.get('remove'):
             editform = 'tag.remove'
         else:
             editform = 'tag.add'
         editor = cmdutil.getcommiteditor(editform=editform,
                                          **pycompat.strkwargs(opts))
 
         # don't allow tagging the null rev
         if (not opts.get('remove') and
             scmutil.revsingle(repo, rev_).rev() == nullrev):
             raise error.Abort(_("cannot tag null revision"))
 
         tagsmod.tag(repo, names, r, message, opts.get('local'),
                     opts.get('user'), date, editor=editor)
     finally:
         release(lock, wlock)
 
 @command('tags', formatteropts, '')
 def tags(ui, repo, **opts):
     """list 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.
     When the -q/--quiet switch is used, only the tag name is printed.
 
     Returns 0 on success.
     """
 
     opts = pycompat.byteskwargs(opts)
     ui.pager('tags')
     fm = ui.formatter('tags', opts)
     hexfunc = fm.hexfunc
     tagtype = ""
 
     for t, n in reversed(repo.tagslist()):
         hn = hexfunc(n)
         label = 'tags.normal'
         tagtype = ''
         if repo.tagtype(t) == 'local':
             label = 'tags.local'
             tagtype = 'local'
 
         fm.startitem()
         fm.write('tag', '%s', t, label=label)
         fmt = " " * (30 - encoding.colwidth(t)) + ' %5d:%s'
         fm.condwrite(not ui.quiet, 'rev node', fmt,
                      repo.changelog.rev(n), hn, label=label)
         fm.condwrite(ui.verbose and tagtype, 'type', ' %s',
                      tagtype, label=label)
         fm.plain('\n')
     fm.end()
 
 @command('tip',
     [('p', 'patch', None, _('show patch')),
     ('g', 'git', None, _('use git extended diff format')),
     ] + templateopts,
     _('[-p] [-g]'))
 def tip(ui, repo, **opts):
     """show the tip revision (DEPRECATED)
 
     The tip revision (usually just called the tip) is the changeset
     most recently added to the repository (and therefore 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.
 
     This command is deprecated, please use :hg:`heads` instead.
 
     Returns 0 on success.
     """
     opts = pycompat.byteskwargs(opts)
     displayer = cmdutil.show_changeset(ui, repo, opts)
     displayer.show(repo['tip'])
     displayer.close()
 
 @command('unbundle',
     [('u', 'update', None,
      _('update to new branch head if changesets were unbundled'))],
     _('[-u] FILE...'))
 def unbundle(ui, repo, fname1, *fnames, **opts):
     """apply one or more bundle files
 
     Apply one or more bundle files generated by :hg:`bundle`.
 
     Returns 0 on success, 1 if an update has unresolved files.
     """
     fnames = (fname1,) + fnames
 
     with repo.lock():
         for fname in fnames:
             f = hg.openpath(ui, fname)
             gen = exchange.readbundle(ui, f, fname)
             if isinstance(gen, streamclone.streamcloneapplier):
                 raise error.Abort(
                         _('packed bundles cannot be applied with '
                           '"hg unbundle"'),
                         hint=_('use "hg debugapplystreamclonebundle"'))
             url = 'bundle:' + fname
             try:
                 txnname = 'unbundle'
                 if not isinstance(gen, bundle2.unbundle20):
                     txnname = 'unbundle\n%s' % util.hidepassword(url)
                 with repo.transaction(txnname) as tr:
                     op = bundle2.applybundle(repo, gen, tr, source='unbundle',
                                              url=url)
             except error.BundleUnknownFeatureError as exc:
                 raise error.Abort(
                     _('%s: unknown bundle feature, %s') % (fname, exc),
                     hint=_("see https://mercurial-scm.org/"
                            "wiki/BundleFeature for more "
                            "information"))
             modheads = bundle2.combinechangegroupresults(op)
 
     return postincoming(ui, repo, modheads, opts.get(r'update'), None, None)
 
 @command('^update|up|checkout|co',
     [('C', 'clean', None, _('discard uncommitted changes (no backup)')),
     ('c', 'check', None, _('require clean working directory')),
     ('m', 'merge', None, _('merge uncommitted changes')),
     ('d', 'date', '', _('tipmost revision matching date'), _('DATE')),
     ('r', 'rev', '', _('revision'), _('REV'))
      ] + mergetoolopts,
     _('[-C|-c|-m] [-d DATE] [[-r] REV]'))
 def update(ui, repo, node=None, rev=None, clean=False, date=None, check=False,
            merge=None, tool=None):
     """update working directory (or switch revisions)
 
     Update the repository's working directory to the specified
     changeset. If no changeset is specified, update to the tip of the
     current named branch and move the active bookmark (see :hg:`help
     bookmarks`).
 
     Update sets the working directory's parent revision to the specified
     changeset (see :hg:`help parents`).
 
     If the changeset is not a descendant or ancestor of the working
     directory's parent and there are uncommitted changes, the update is
     aborted. With the -c/--check option, the working directory is checked
     for uncommitted changes; if none are found, the working directory is
     updated to the specified changeset.
 
     .. container:: verbose
 
       The -C/--clean, -c/--check, and -m/--merge options control what
       happens if the working directory contains uncommitted changes.
       At most of one of them can be specified.
 
       1. If no option is specified, and if
          the requested changeset is an ancestor or descendant of
          the working directory's parent, the uncommitted changes
          are merged into the requested changeset and the merged
          result is left uncommitted. If the requested changeset is
          not an ancestor or descendant (that is, it is on another
          branch), the update is aborted and the uncommitted changes
          are preserved.
 
       2. With the -m/--merge option, the update is allowed even if the
          requested changeset is not an ancestor or descendant of
          the working directory's parent.
 
       3. With the -c/--check option, the update is aborted and the
          uncommitted changes are preserved.
 
       4. With the -C/--clean option, uncommitted changes are discarded and
          the working directory is updated to the requested changeset.
 
     To cancel an uncommitted merge (and lose your changes), use
     :hg:`update --clean .`.
 
     Use null as the changeset to remove the working directory (like
     :hg:`clone -U`).
 
     If you want to revert just one file to an older revision, use
     :hg:`revert [-r REV] NAME`.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success, 1 if there are unresolved files.
     """
     if rev and node:
         raise error.Abort(_("please specify just one revision"))
 
     if ui.configbool('commands', 'update.requiredest'):
         if not node and not rev and not date:
             raise error.Abort(_('you must specify a destination'),
                               hint=_('for example: hg update ".::"'))
 
     if rev is None or rev == '':
         rev = node
 
     if date and rev is not None:
         raise error.Abort(_("you can't specify a revision and a date"))
 
     if len([x for x in (clean, check, merge) if x]) > 1:
         raise error.Abort(_("can only specify one of -C/--clean, -c/--check, "
                             "or -m/merge"))
 
     updatecheck = None
     if check:
         updatecheck = 'abort'
     elif merge:
         updatecheck = 'none'
 
     with repo.wlock():
         cmdutil.clearunfinished(repo)
 
         if date:
             rev = cmdutil.finddate(ui, repo, date)
 
         # if we defined a bookmark, we have to remember the original name
         brev = rev
         rev = scmutil.revsingle(repo, rev, rev).rev()
 
         repo.ui.setconfig('ui', 'forcemerge', tool, 'update')
 
         return hg.updatetotally(ui, repo, rev, brev, clean=clean,
                                 updatecheck=updatecheck)
 
 @command('verify', [])
 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.
 
     Please see https://mercurial-scm.org/wiki/RepositoryCorruption
     for more information about recovery from corruption of the
     repository.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     return hg.verify(repo)
 
 @command('version', [] + formatteropts, norepo=True)
 def version_(ui, **opts):
     """output version and copyright information"""
     opts = pycompat.byteskwargs(opts)
     if ui.verbose:
         ui.pager('version')
     fm = ui.formatter("version", opts)
     fm.startitem()
     fm.write("ver", _("Mercurial Distributed SCM (version %s)\n"),
              util.version())
     license = _(
         "(see https://mercurial-scm.org for more information)\n"
         "\nCopyright (C) 2005-2017 Matt Mackall 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"
     )
     if not ui.quiet:
         fm.plain(license)
 
     if ui.verbose:
         fm.plain(_("\nEnabled extensions:\n\n"))
     # format names and versions into columns
     names = []
     vers = []
     isinternals = []
     for name, module in extensions.extensions():
         names.append(name)
         vers.append(extensions.moduleversion(module) or None)
         isinternals.append(extensions.ismoduleinternal(module))
     fn = fm.nested("extensions")
     if names:
         namefmt = "  %%-%ds  " % max(len(n) for n in names)
         places = [_("external"), _("internal")]
         for n, v, p in zip(names, vers, isinternals):
             fn.startitem()
             fn.condwrite(ui.verbose, "name", namefmt, n)
             if ui.verbose:
                 fn.plain("%s  " % places[p])
             fn.data(bundled=p)
             fn.condwrite(ui.verbose and v, "ver", "%s", v)
             if ui.verbose:
                 fn.plain("\n")
     fn.end()
     fm.end()
 
 def loadcmdtable(ui, name, cmdtable):
     """Load command functions from specified cmdtable
     """
     overrides = [cmd for cmd in cmdtable if cmd in table]
     if overrides:
         ui.warn(_("extension '%s' overrides commands: %s\n")
                 % (name, " ".join(overrides)))
     table.update(cmdtable)

mercurial/context.py

@@ -1,2330 +1,2330 b''
 # context.py - changeset and file context objects for mercurial
 #
 # Copyright 2006, 2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import errno
 import os
 import re
 import stat
 
 from .i18n import _
 from .node import (
     addednodeid,
     bin,
     hex,
     modifiednodeid,
     nullid,
     nullrev,
     short,
     wdirid,
     wdirnodes,
     wdirrev,
 )
 from . import (
     encoding,
     error,
     fileset,
     match as matchmod,
     mdiff,
     obsolete as obsmod,
     patch,
     pathutil,
     phases,
     pycompat,
     repoview,
     revlog,
     scmutil,
     sparse,
     subrepo,
     util,
 )
 
 propertycache = util.propertycache
 
 nonascii = re.compile(r'[^\x21-\x7f]').search
 
 class basectx(object):
     """A basectx object represents the common logic for its children:
     changectx: read-only context that is already present in the repo,
     workingctx: a context that represents the working directory and can
                 be committed,
     memctx: a context that represents changes in-memory and can also
             be committed."""
     def __new__(cls, repo, changeid='', *args, **kwargs):
         if isinstance(changeid, basectx):
             return changeid
 
         o = super(basectx, cls).__new__(cls)
 
         o._repo = repo
         o._rev = nullrev
         o._node = nullid
 
         return o
 
     def __bytes__(self):
         return short(self.node())
 
     __str__ = encoding.strmethod(__bytes__)
 
     def __int__(self):
         return self.rev()
 
     def __repr__(self):
         return r"<%s %s>" % (type(self).__name__, str(self))
 
     def __eq__(self, other):
         try:
             return type(self) == type(other) and self._rev == other._rev
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def __contains__(self, key):
         return key in self._manifest
 
     def __getitem__(self, key):
         return self.filectx(key)
 
     def __iter__(self):
         return iter(self._manifest)
 
     def _buildstatusmanifest(self, status):
         """Builds a manifest that includes the given status results, if this is
         a working copy context. For non-working copy contexts, it just returns
         the normal manifest."""
         return self.manifest()
 
     def _matchstatus(self, other, match):
         """return match.always if match is none
 
         This internal method provides a way for child objects to override the
         match operator.
         """
         return match or matchmod.always(self._repo.root, self._repo.getcwd())
 
     def _buildstatus(self, other, s, match, listignored, listclean,
                      listunknown):
         """build a status with respect to another context"""
         # Load earliest manifest first for caching reasons. More specifically,
         # if you have revisions 1000 and 1001, 1001 is probably stored as a
         # delta against 1000. Thus, if you read 1000 first, we'll reconstruct
         # 1000 and cache it so that when you read 1001, we just need to apply a
         # delta to what's in the cache. So that's one full reconstruction + one
         # delta application.
         mf2 = None
         if self.rev() is not None and self.rev() < other.rev():
             mf2 = self._buildstatusmanifest(s)
         mf1 = other._buildstatusmanifest(s)
         if mf2 is None:
             mf2 = self._buildstatusmanifest(s)
 
         modified, added = [], []
         removed = []
         clean = []
         deleted, unknown, ignored = s.deleted, s.unknown, s.ignored
         deletedset = set(deleted)
         d = mf1.diff(mf2, match=match, clean=listclean)
         for fn, value in d.iteritems():
             if fn in deletedset:
                 continue
             if value is None:
                 clean.append(fn)
                 continue
             (node1, flag1), (node2, flag2) = value
             if node1 is None:
                 added.append(fn)
             elif node2 is None:
                 removed.append(fn)
             elif flag1 != flag2:
                 modified.append(fn)
             elif node2 not in wdirnodes:
                 # When comparing files between two commits, we save time by
                 # not comparing the file contents when the nodeids differ.
                 # Note that this means we incorrectly report a reverted change
                 # to a file as a modification.
                 modified.append(fn)
             elif self[fn].cmp(other[fn]):
                 modified.append(fn)
             else:
                 clean.append(fn)
 
         if removed:
             # need to filter files if they are already reported as removed
             unknown = [fn for fn in unknown if fn not in mf1 and
                                                (not match or match(fn))]
             ignored = [fn for fn in ignored if fn not in mf1 and
                                                (not match or match(fn))]
             # if they're deleted, don't report them as removed
             removed = [fn for fn in removed if fn not in deletedset]
 
         return scmutil.status(modified, added, removed, deleted, unknown,
                               ignored, clean)
 
     @propertycache
     def substate(self):
         return subrepo.state(self, self._repo.ui)
 
     def subrev(self, subpath):
         return self.substate[subpath][1]
 
     def rev(self):
         return self._rev
     def node(self):
         return self._node
     def hex(self):
         return hex(self.node())
     def manifest(self):
         return self._manifest
     def manifestctx(self):
         return self._manifestctx
     def repo(self):
         return self._repo
     def phasestr(self):
         return phases.phasenames[self.phase()]
     def mutable(self):
         return self.phase() > phases.public
 
     def getfileset(self, expr):
         return fileset.getfileset(self, expr)
 
     def obsolete(self):
         """True if the changeset is obsolete"""
         return self.rev() in obsmod.getrevs(self._repo, 'obsolete')
 
     def extinct(self):
         """True if the changeset is extinct"""
         return self.rev() in obsmod.getrevs(self._repo, 'extinct')
 
     def unstable(self):
         """True if the changeset is not obsolete but it's ancestor are"""
         return self.rev() in obsmod.getrevs(self._repo, 'unstable')
 
     def bumped(self):
         """True if the changeset try to be a successor of a public changeset
 
         Only non-public and non-obsolete changesets may be bumped.
         """
         return self.rev() in obsmod.getrevs(self._repo, 'bumped')
 
     def divergent(self):
         """Is a successors of a changeset with multiple possible successors set
 
         Only non-public and non-obsolete changesets may be divergent.
         """
         return self.rev() in obsmod.getrevs(self._repo, 'divergent')
 
     def troubled(self):
         """True if the changeset is either unstable, bumped or divergent"""
         return self.unstable() or self.bumped() or self.divergent()
 
     def troubles(self):
         """return the list of troubles affecting this changesets.
 
         Troubles are returned as strings. possible values are:
         - orphan,
         - bumped,
-        - divergent.
+        - content-divergent.
         """
         troubles = []
         if self.unstable():
             troubles.append('orphan')
         if self.bumped():
             troubles.append('bumped')
         if self.divergent():
-            troubles.append('divergent')
+            troubles.append('content-divergent')
         return troubles
 
     def parents(self):
         """return contexts for each parent changeset"""
         return self._parents
 
     def p1(self):
         return self._parents[0]
 
     def p2(self):
         parents = self._parents
         if len(parents) == 2:
             return parents[1]
         return changectx(self._repo, nullrev)
 
     def _fileinfo(self, path):
         if r'_manifest' in self.__dict__:
             try:
                 return self._manifest[path], self._manifest.flags(path)
             except KeyError:
                 raise error.ManifestLookupError(self._node, path,
                                                 _('not found in manifest'))
         if r'_manifestdelta' in self.__dict__ or path in self.files():
             if path in self._manifestdelta:
                 return (self._manifestdelta[path],
                         self._manifestdelta.flags(path))
         mfl = self._repo.manifestlog
         try:
             node, flag = mfl[self._changeset.manifest].find(path)
         except KeyError:
             raise error.ManifestLookupError(self._node, path,
                                             _('not found in manifest'))
 
         return node, flag
 
     def filenode(self, path):
         return self._fileinfo(path)[0]
 
     def flags(self, path):
         try:
             return self._fileinfo(path)[1]
         except error.LookupError:
             return ''
 
     def sub(self, path, allowcreate=True):
         '''return a subrepo for the stored revision of path, never wdir()'''
         return subrepo.subrepo(self, path, allowcreate=allowcreate)
 
     def nullsub(self, path, pctx):
         return subrepo.nullsubrepo(self, path, pctx)
 
     def workingsub(self, path):
         '''return a subrepo for the stored revision, or wdir if this is a wdir
         context.
         '''
         return subrepo.subrepo(self, path, allowwdir=True)
 
     def match(self, pats=None, include=None, exclude=None, default='glob',
               listsubrepos=False, badfn=None):
         r = self._repo
         return matchmod.match(r.root, r.getcwd(), pats,
                               include, exclude, default,
                               auditor=r.nofsauditor, ctx=self,
                               listsubrepos=listsubrepos, badfn=badfn)
 
     def diff(self, ctx2=None, match=None, **opts):
         """Returns a diff generator for the given contexts and matcher"""
         if ctx2 is None:
             ctx2 = self.p1()
         if ctx2 is not None:
             ctx2 = self._repo[ctx2]
         diffopts = patch.diffopts(self._repo.ui, opts)
         return patch.diff(self._repo, ctx2, self, match=match, opts=diffopts)
 
     def dirs(self):
         return self._manifest.dirs()
 
     def hasdir(self, dir):
         return self._manifest.hasdir(dir)
 
     def status(self, other=None, match=None, listignored=False,
                listclean=False, listunknown=False, listsubrepos=False):
         """return status of files between two nodes or node and working
         directory.
 
         If other is None, compare this node with working directory.
 
         returns (modified, added, removed, deleted, unknown, ignored, clean)
         """
 
         ctx1 = self
         ctx2 = self._repo[other]
 
         # This next code block is, admittedly, fragile logic that tests for
         # reversing the contexts and wouldn't need to exist if it weren't for
         # the fast (and common) code path of comparing the working directory
         # with its first parent.
         #
         # What we're aiming for here is the ability to call:
         #
         # workingctx.status(parentctx)
         #
         # If we always built the manifest for each context and compared those,
         # then we'd be done. But the special case of the above call means we
         # just copy the manifest of the parent.
         reversed = False
         if (not isinstance(ctx1, changectx)
             and isinstance(ctx2, changectx)):
             reversed = True
             ctx1, ctx2 = ctx2, ctx1
 
         match = ctx2._matchstatus(ctx1, match)
         r = scmutil.status([], [], [], [], [], [], [])
         r = ctx2._buildstatus(ctx1, r, match, listignored, listclean,
                               listunknown)
 
         if reversed:
             # Reverse added and removed. Clear deleted, unknown and ignored as
             # these make no sense to reverse.
             r = scmutil.status(r.modified, r.removed, r.added, [], [], [],
                                r.clean)
 
         if listsubrepos:
             for subpath, sub in scmutil.itersubrepos(ctx1, ctx2):
                 try:
                     rev2 = ctx2.subrev(subpath)
                 except KeyError:
                     # A subrepo that existed in node1 was deleted between
                     # node1 and node2 (inclusive). Thus, ctx2's substate
                     # won't contain that subpath. The best we can do ignore it.
                     rev2 = None
                 submatch = matchmod.subdirmatcher(subpath, match)
                 s = sub.status(rev2, match=submatch, ignored=listignored,
                                clean=listclean, unknown=listunknown,
                                listsubrepos=True)
                 for rfiles, sfiles in zip(r, s):
                     rfiles.extend("%s/%s" % (subpath, f) for f in sfiles)
 
         for l in r:
             l.sort()
 
         return r
 
 def _filterederror(repo, changeid):
     """build an exception to be raised about a filtered changeid
 
     This is extracted in a function to help extensions (eg: evolve) to
     experiment with various message variants."""
     if repo.filtername.startswith('visible'):
         msg = _("hidden revision '%s'") % changeid
         hint = _('use --hidden to access hidden revisions')
         return error.FilteredRepoLookupError(msg, hint=hint)
     msg = _("filtered revision '%s' (not in '%s' subset)")
     msg %= (changeid, repo.filtername)
     return error.FilteredRepoLookupError(msg)
 
 class changectx(basectx):
     """A changecontext object makes access to data related to a particular
     changeset convenient. It represents a read-only context already present in
     the repo."""
     def __init__(self, repo, changeid=''):
         """changeid is a revision number, node, or tag"""
 
         # since basectx.__new__ already took care of copying the object, we
         # don't need to do anything in __init__, so we just exit here
         if isinstance(changeid, basectx):
             return
 
         if changeid == '':
             changeid = '.'
         self._repo = repo
 
         try:
             if isinstance(changeid, int):
                 self._node = repo.changelog.node(changeid)
                 self._rev = changeid
                 return
             if not pycompat.ispy3 and isinstance(changeid, long):
                 changeid = str(changeid)
             if changeid == 'null':
                 self._node = nullid
                 self._rev = nullrev
                 return
             if changeid == 'tip':
                 self._node = repo.changelog.tip()
                 self._rev = repo.changelog.rev(self._node)
                 return
             if changeid == '.' or changeid == repo.dirstate.p1():
                 # this is a hack to delay/avoid loading obsmarkers
                 # when we know that '.' won't be hidden
                 self._node = repo.dirstate.p1()
                 self._rev = repo.unfiltered().changelog.rev(self._node)
                 return
             if len(changeid) == 20:
                 try:
                     self._node = changeid
                     self._rev = repo.changelog.rev(changeid)
                     return
                 except error.FilteredRepoLookupError:
                     raise
                 except LookupError:
                     pass
 
             try:
                 r = int(changeid)
                 if '%d' % r != changeid:
                     raise ValueError
                 l = len(repo.changelog)
                 if r < 0:
                     r += l
                 if r < 0 or r >= l and r != wdirrev:
                     raise ValueError
                 self._rev = r
                 self._node = repo.changelog.node(r)
                 return
             except error.FilteredIndexError:
                 raise
             except (ValueError, OverflowError, IndexError):
                 pass
 
             if len(changeid) == 40:
                 try:
                     self._node = bin(changeid)
                     self._rev = repo.changelog.rev(self._node)
                     return
                 except error.FilteredLookupError:
                     raise
                 except (TypeError, LookupError):
                     pass
 
             # lookup bookmarks through the name interface
             try:
                 self._node = repo.names.singlenode(repo, changeid)
                 self._rev = repo.changelog.rev(self._node)
                 return
             except KeyError:
                 pass
             except error.FilteredRepoLookupError:
                 raise
             except error.RepoLookupError:
                 pass
 
             self._node = repo.unfiltered().changelog._partialmatch(changeid)
             if self._node is not None:
                 self._rev = repo.changelog.rev(self._node)
                 return
 
             # lookup failed
             # check if it might have come from damaged dirstate
             #
             # XXX we could avoid the unfiltered if we had a recognizable
             # exception for filtered changeset access
             if changeid in repo.unfiltered().dirstate.parents():
                 msg = _("working directory has unknown parent '%s'!")
                 raise error.Abort(msg % short(changeid))
             try:
                 if len(changeid) == 20 and nonascii(changeid):
                     changeid = hex(changeid)
             except TypeError:
                 pass
         except (error.FilteredIndexError, error.FilteredLookupError,
                 error.FilteredRepoLookupError):
             raise _filterederror(repo, changeid)
         except IndexError:
             pass
         raise error.RepoLookupError(
             _("unknown revision '%s'") % changeid)
 
     def __hash__(self):
         try:
             return hash(self._rev)
         except AttributeError:
             return id(self)
 
     def __nonzero__(self):
         return self._rev != nullrev
 
     __bool__ = __nonzero__
 
     @propertycache
     def _changeset(self):
         return self._repo.changelog.changelogrevision(self.rev())
 
     @propertycache
     def _manifest(self):
         return self._manifestctx.read()
 
     @property
     def _manifestctx(self):
         return self._repo.manifestlog[self._changeset.manifest]
 
     @propertycache
     def _manifestdelta(self):
         return self._manifestctx.readdelta()
 
     @propertycache
     def _parents(self):
         repo = self._repo
         p1, p2 = repo.changelog.parentrevs(self._rev)
         if p2 == nullrev:
             return [changectx(repo, p1)]
         return [changectx(repo, p1), changectx(repo, p2)]
 
     def changeset(self):
         c = self._changeset
         return (
             c.manifest,
             c.user,
             c.date,
             c.files,
             c.description,
             c.extra,
         )
     def manifestnode(self):
         return self._changeset.manifest
 
     def user(self):
         return self._changeset.user
     def date(self):
         return self._changeset.date
     def files(self):
         return self._changeset.files
     def description(self):
         return self._changeset.description
     def branch(self):
         return encoding.tolocal(self._changeset.extra.get("branch"))
     def closesbranch(self):
         return 'close' in self._changeset.extra
     def extra(self):
         return self._changeset.extra
     def tags(self):
         return self._repo.nodetags(self._node)
     def bookmarks(self):
         return self._repo.nodebookmarks(self._node)
     def phase(self):
         return self._repo._phasecache.phase(self._repo, self._rev)
     def hidden(self):
         return self._rev in repoview.filterrevs(self._repo, 'visible')
 
     def children(self):
         """return contexts for each child changeset"""
         c = self._repo.changelog.children(self._node)
         return [changectx(self._repo, x) for x in c]
 
     def ancestors(self):
         for a in self._repo.changelog.ancestors([self._rev]):
             yield changectx(self._repo, a)
 
     def descendants(self):
         for d in self._repo.changelog.descendants([self._rev]):
             yield changectx(self._repo, d)
 
     def filectx(self, path, fileid=None, filelog=None):
         """get a file context from this changeset"""
         if fileid is None:
             fileid = self.filenode(path)
         return filectx(self._repo, path, fileid=fileid,
                        changectx=self, filelog=filelog)
 
     def ancestor(self, c2, warn=False):
         """return the "best" ancestor context of self and c2
 
         If there are multiple candidates, it will show a message and check
         merge.preferancestor configuration before falling back to the
         revlog ancestor."""
         # deal with workingctxs
         n2 = c2._node
         if n2 is None:
             n2 = c2._parents[0]._node
         cahs = self._repo.changelog.commonancestorsheads(self._node, n2)
         if not cahs:
             anc = nullid
         elif len(cahs) == 1:
             anc = cahs[0]
         else:
             # experimental config: merge.preferancestor
             for r in self._repo.ui.configlist('merge', 'preferancestor', ['*']):
                 try:
                     ctx = changectx(self._repo, r)
                 except error.RepoLookupError:
                     continue
                 anc = ctx.node()
                 if anc in cahs:
                     break
             else:
                 anc = self._repo.changelog.ancestor(self._node, n2)
             if warn:
                 self._repo.ui.status(
                     (_("note: using %s as ancestor of %s and %s\n") %
                      (short(anc), short(self._node), short(n2))) +
                     ''.join(_("      alternatively, use --config "
                               "merge.preferancestor=%s\n") %
                             short(n) for n in sorted(cahs) if n != anc))
         return changectx(self._repo, anc)
 
     def descendant(self, other):
         """True if other is descendant of this changeset"""
         return self._repo.changelog.descendant(self._rev, other._rev)
 
     def walk(self, match):
         '''Generates matching file names.'''
 
         # Wrap match.bad method to have message with nodeid
         def bad(fn, msg):
             # The manifest doesn't know about subrepos, so don't complain about
             # paths into valid subrepos.
             if any(fn == s or fn.startswith(s + '/')
                    for s in self.substate):
                 return
             match.bad(fn, _('no such file in rev %s') % self)
 
         m = matchmod.badmatch(match, bad)
         return self._manifest.walk(m)
 
     def matches(self, match):
         return self.walk(match)
 
 class basefilectx(object):
     """A filecontext object represents the common logic for its children:
     filectx: read-only access to a filerevision that is already present
              in the repo,
     workingfilectx: a filecontext that represents files from the working
                     directory,
     memfilectx: a filecontext that represents files in-memory,
     overlayfilectx: duplicate another filecontext with some fields overridden.
     """
     @propertycache
     def _filelog(self):
         return self._repo.file(self._path)
 
     @propertycache
     def _changeid(self):
         if r'_changeid' in self.__dict__:
             return self._changeid
         elif r'_changectx' in self.__dict__:
             return self._changectx.rev()
         elif r'_descendantrev' in self.__dict__:
             # this file context was created from a revision with a known
             # descendant, we can (lazily) correct for linkrev aliases
             return self._adjustlinkrev(self._descendantrev)
         else:
             return self._filelog.linkrev(self._filerev)
 
     @propertycache
     def _filenode(self):
         if r'_fileid' in self.__dict__:
             return self._filelog.lookup(self._fileid)
         else:
             return self._changectx.filenode(self._path)
 
     @propertycache
     def _filerev(self):
         return self._filelog.rev(self._filenode)
 
     @propertycache
     def _repopath(self):
         return self._path
 
     def __nonzero__(self):
         try:
             self._filenode
             return True
         except error.LookupError:
             # file is missing
             return False
 
     __bool__ = __nonzero__
 
     def __bytes__(self):
         try:
             return "%s@%s" % (self.path(), self._changectx)
         except error.LookupError:
             return "%s@???" % self.path()
 
     __str__ = encoding.strmethod(__bytes__)
 
     def __repr__(self):
         return "<%s %s>" % (type(self).__name__, str(self))
 
     def __hash__(self):
         try:
             return hash((self._path, self._filenode))
         except AttributeError:
             return id(self)
 
     def __eq__(self, other):
         try:
             return (type(self) == type(other) and self._path == other._path
                     and self._filenode == other._filenode)
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def filerev(self):
         return self._filerev
     def filenode(self):
         return self._filenode
     @propertycache
     def _flags(self):
         return self._changectx.flags(self._path)
     def flags(self):
         return self._flags
     def filelog(self):
         return self._filelog
     def rev(self):
         return self._changeid
     def linkrev(self):
         return self._filelog.linkrev(self._filerev)
     def node(self):
         return self._changectx.node()
     def hex(self):
         return self._changectx.hex()
     def user(self):
         return self._changectx.user()
     def date(self):
         return self._changectx.date()
     def files(self):
         return self._changectx.files()
     def description(self):
         return self._changectx.description()
     def branch(self):
         return self._changectx.branch()
     def extra(self):
         return self._changectx.extra()
     def phase(self):
         return self._changectx.phase()
     def phasestr(self):
         return self._changectx.phasestr()
     def manifest(self):
         return self._changectx.manifest()
     def changectx(self):
         return self._changectx
     def renamed(self):
         return self._copied
     def repo(self):
         return self._repo
     def size(self):
         return len(self.data())
 
     def path(self):
         return self._path
 
     def isbinary(self):
         try:
             return util.binary(self.data())
         except IOError:
             return False
     def isexec(self):
         return 'x' in self.flags()
     def islink(self):
         return 'l' in self.flags()
 
     def isabsent(self):
         """whether this filectx represents a file not in self._changectx
 
         This is mainly for merge code to detect change/delete conflicts. This is
         expected to be True for all subclasses of basectx."""
         return False
 
     _customcmp = False
     def cmp(self, fctx):
         """compare with other file context
 
         returns True if different than fctx.
         """
         if fctx._customcmp:
             return fctx.cmp(self)
 
         if (fctx._filenode is None
             and (self._repo._encodefilterpats
                  # if file data starts with '\1\n', empty metadata block is
                  # prepended, which adds 4 bytes to filelog.size().
                  or self.size() - 4 == fctx.size())
             or self.size() == fctx.size()):
             return self._filelog.cmp(self._filenode, fctx.data())
 
         return True
 
     def _adjustlinkrev(self, srcrev, inclusive=False):
         """return the first ancestor of <srcrev> introducing <fnode>
 
         If the linkrev of the file revision does not point to an ancestor of
         srcrev, we'll walk down the ancestors until we find one introducing
         this file revision.
 
         :srcrev: the changeset revision we search ancestors from
         :inclusive: if true, the src revision will also be checked
         """
         repo = self._repo
         cl = repo.unfiltered().changelog
         mfl = repo.manifestlog
         # fetch the linkrev
         lkr = self.linkrev()
         # hack to reuse ancestor computation when searching for renames
         memberanc = getattr(self, '_ancestrycontext', None)
         iteranc = None
         if srcrev is None:
             # wctx case, used by workingfilectx during mergecopy
             revs = [p.rev() for p in self._repo[None].parents()]
             inclusive = True # we skipped the real (revless) source
         else:
             revs = [srcrev]
         if memberanc is None:
             memberanc = iteranc = cl.ancestors(revs, lkr,
                                                inclusive=inclusive)
         # check if this linkrev is an ancestor of srcrev
         if lkr not in memberanc:
             if iteranc is None:
                 iteranc = cl.ancestors(revs, lkr, inclusive=inclusive)
             fnode = self._filenode
             path = self._path
             for a in iteranc:
                 ac = cl.read(a) # get changeset data (we avoid object creation)
                 if path in ac[3]: # checking the 'files' field.
                     # The file has been touched, check if the content is
                     # similar to the one we search for.
                     if fnode == mfl[ac[0]].readfast().get(path):
                         return a
             # In theory, we should never get out of that loop without a result.
             # But if manifest uses a buggy file revision (not children of the
             # one it replaces) we could. Such a buggy situation will likely
             # result is crash somewhere else at to some point.
         return lkr
 
     def introrev(self):
         """return the rev of the changeset which introduced this file revision
 
         This method is different from linkrev because it take into account the
         changeset the filectx was created from. It ensures the returned
         revision is one of its ancestors. This prevents bugs from
         'linkrev-shadowing' when a file revision is used by multiple
         changesets.
         """
         lkr = self.linkrev()
         attrs = vars(self)
         noctx = not ('_changeid' in attrs or '_changectx' in attrs)
         if noctx or self.rev() == lkr:
             return self.linkrev()
         return self._adjustlinkrev(self.rev(), inclusive=True)
 
     def _parentfilectx(self, path, fileid, filelog):
         """create parent filectx keeping ancestry info for _adjustlinkrev()"""
         fctx = filectx(self._repo, path, fileid=fileid, filelog=filelog)
         if '_changeid' in vars(self) or '_changectx' in vars(self):
             # If self is associated with a changeset (probably explicitly
             # fed), ensure the created filectx is associated with a
             # changeset that is an ancestor of self.changectx.
             # This lets us later use _adjustlinkrev to get a correct link.
             fctx._descendantrev = self.rev()
             fctx._ancestrycontext = getattr(self, '_ancestrycontext', None)
         elif '_descendantrev' in vars(self):
             # Otherwise propagate _descendantrev if we have one associated.
             fctx._descendantrev = self._descendantrev
             fctx._ancestrycontext = getattr(self, '_ancestrycontext', None)
         return fctx
 
     def parents(self):
         _path = self._path
         fl = self._filelog
         parents = self._filelog.parents(self._filenode)
         pl = [(_path, node, fl) for node in parents if node != nullid]
 
         r = fl.renamed(self._filenode)
         if r:
             # - In the simple rename case, both parent are nullid, pl is empty.
             # - In case of merge, only one of the parent is null id and should
             # be replaced with the rename information. This parent is -always-
             # the first one.
             #
             # As null id have always been filtered out in the previous list
             # comprehension, inserting to 0 will always result in "replacing
             # first nullid parent with rename information.
             pl.insert(0, (r[0], r[1], self._repo.file(r[0])))
 
         return [self._parentfilectx(path, fnode, l) for path, fnode, l in pl]
 
     def p1(self):
         return self.parents()[0]
 
     def p2(self):
         p = self.parents()
         if len(p) == 2:
             return p[1]
         return filectx(self._repo, self._path, fileid=-1, filelog=self._filelog)
 
     def annotate(self, follow=False, linenumber=False, skiprevs=None,
                  diffopts=None):
         '''returns a list of tuples of ((ctx, number), line) for each line
         in the file, where ctx is the filectx of the node where
         that line was last changed; if linenumber parameter is true, number is
         the line number at the first appearance in the managed file, otherwise,
         number has a fixed value of False.
         '''
 
         def lines(text):
             if text.endswith("\n"):
                 return text.count("\n")
             return text.count("\n") + int(bool(text))
 
         if linenumber:
             def decorate(text, rev):
                 return ([(rev, i) for i in xrange(1, lines(text) + 1)], text)
         else:
             def decorate(text, rev):
                 return ([(rev, False)] * lines(text), text)
 
         getlog = util.lrucachefunc(lambda x: self._repo.file(x))
 
         def parents(f):
             # Cut _descendantrev here to mitigate the penalty of lazy linkrev
             # adjustment. Otherwise, p._adjustlinkrev() would walk changelog
             # from the topmost introrev (= srcrev) down to p.linkrev() if it
             # isn't an ancestor of the srcrev.
             f._changeid
             pl = f.parents()
 
             # Don't return renamed parents if we aren't following.
             if not follow:
                 pl = [p for p in pl if p.path() == f.path()]
 
             # renamed filectx won't have a filelog yet, so set it
             # from the cache to save time
             for p in pl:
                 if not '_filelog' in p.__dict__:
                     p._filelog = getlog(p.path())
 
             return pl
 
         # use linkrev to find the first changeset where self appeared
         base = self
         introrev = self.introrev()
         if self.rev() != introrev:
             base = self.filectx(self.filenode(), changeid=introrev)
         if getattr(base, '_ancestrycontext', None) is None:
             cl = self._repo.changelog
             if introrev is None:
                 # wctx is not inclusive, but works because _ancestrycontext
                 # is used to test filelog revisions
                 ac = cl.ancestors([p.rev() for p in base.parents()],
                                   inclusive=True)
             else:
                 ac = cl.ancestors([introrev], inclusive=True)
             base._ancestrycontext = ac
 
         # This algorithm would prefer to be recursive, but Python is a
         # bit recursion-hostile. Instead we do an iterative
         # depth-first search.
 
         # 1st DFS pre-calculates pcache and needed
         visit = [base]
         pcache = {}
         needed = {base: 1}
         while visit:
             f = visit.pop()
             if f in pcache:
                 continue
             pl = parents(f)
             pcache[f] = pl
             for p in pl:
                 needed[p] = needed.get(p, 0) + 1
                 if p not in pcache:
                     visit.append(p)
 
         # 2nd DFS does the actual annotate
         visit[:] = [base]
         hist = {}
         while visit:
             f = visit[-1]
             if f in hist:
                 visit.pop()
                 continue
 
             ready = True
             pl = pcache[f]
             for p in pl:
                 if p not in hist:
                     ready = False
                     visit.append(p)
             if ready:
                 visit.pop()
                 curr = decorate(f.data(), f)
                 skipchild = False
                 if skiprevs is not None:
                     skipchild = f._changeid in skiprevs
                 curr = _annotatepair([hist[p] for p in pl], f, curr, skipchild,
                                      diffopts)
                 for p in pl:
                     if needed[p] == 1:
                         del hist[p]
                         del needed[p]
                     else:
                         needed[p] -= 1
 
                 hist[f] = curr
                 del pcache[f]
 
         return zip(hist[base][0], hist[base][1].splitlines(True))
 
     def ancestors(self, followfirst=False):
         visit = {}
         c = self
         if followfirst:
             cut = 1
         else:
             cut = None
 
         while True:
             for parent in c.parents()[:cut]:
                 visit[(parent.linkrev(), parent.filenode())] = parent
             if not visit:
                 break
             c = visit.pop(max(visit))
             yield c
 
 def _annotatepair(parents, childfctx, child, skipchild, diffopts):
     r'''
     Given parent and child fctxes and annotate data for parents, for all lines
     in either parent that match the child, annotate the child with the parent's
     data.
 
     Additionally, if `skipchild` is True, replace all other lines with parent
     annotate data as well such that child is never blamed for any lines.
 
     >>> oldfctx = 'old'
     >>> p1fctx, p2fctx, childfctx = 'p1', 'p2', 'c'
     >>> olddata = 'a\nb\n'
     >>> p1data = 'a\nb\nc\n'
     >>> p2data = 'a\nc\nd\n'
     >>> childdata = 'a\nb2\nc\nc2\nd\n'
     >>> diffopts = mdiff.diffopts()
 
     >>> def decorate(text, rev):
     ...     return ([(rev, i) for i in xrange(1, text.count('\n') + 1)], text)
 
     Basic usage:
 
     >>> oldann = decorate(olddata, oldfctx)
     >>> p1ann = decorate(p1data, p1fctx)
     >>> p1ann = _annotatepair([oldann], p1fctx, p1ann, False, diffopts)
     >>> p1ann[0]
     [('old', 1), ('old', 2), ('p1', 3)]
     >>> p2ann = decorate(p2data, p2fctx)
     >>> p2ann = _annotatepair([oldann], p2fctx, p2ann, False, diffopts)
     >>> p2ann[0]
     [('old', 1), ('p2', 2), ('p2', 3)]
 
     Test with multiple parents (note the difference caused by ordering):
 
     >>> childann = decorate(childdata, childfctx)
     >>> childann = _annotatepair([p1ann, p2ann], childfctx, childann, False,
     ...                          diffopts)
     >>> childann[0]
     [('old', 1), ('c', 2), ('p2', 2), ('c', 4), ('p2', 3)]
 
     >>> childann = decorate(childdata, childfctx)
     >>> childann = _annotatepair([p2ann, p1ann], childfctx, childann, False,
     ...                          diffopts)
     >>> childann[0]
     [('old', 1), ('c', 2), ('p1', 3), ('c', 4), ('p2', 3)]
 
     Test with skipchild (note the difference caused by ordering):
 
     >>> childann = decorate(childdata, childfctx)
     >>> childann = _annotatepair([p1ann, p2ann], childfctx, childann, True,
     ...                          diffopts)
     >>> childann[0]
     [('old', 1), ('old', 2), ('p2', 2), ('p2', 2), ('p2', 3)]
 
     >>> childann = decorate(childdata, childfctx)
     >>> childann = _annotatepair([p2ann, p1ann], childfctx, childann, True,
     ...                          diffopts)
     >>> childann[0]
     [('old', 1), ('old', 2), ('p1', 3), ('p1', 3), ('p2', 3)]
     '''
     pblocks = [(parent, mdiff.allblocks(parent[1], child[1], opts=diffopts))
                for parent in parents]
 
     if skipchild:
         # Need to iterate over the blocks twice -- make it a list
         pblocks = [(p, list(blocks)) for (p, blocks) in pblocks]
     # Mercurial currently prefers p2 over p1 for annotate.
     # TODO: change this?
     for parent, blocks in pblocks:
         for (a1, a2, b1, b2), t in blocks:
             # Changed blocks ('!') or blocks made only of blank lines ('~')
             # belong to the child.
             if t == '=':
                 child[0][b1:b2] = parent[0][a1:a2]
 
     if skipchild:
         # Now try and match up anything that couldn't be matched,
         # Reversing pblocks maintains bias towards p2, matching above
         # behavior.
         pblocks.reverse()
 
         # The heuristics are:
         # * Work on blocks of changed lines (effectively diff hunks with -U0).
         # This could potentially be smarter but works well enough.
         # * For a non-matching section, do a best-effort fit. Match lines in
         #   diff hunks 1:1, dropping lines as necessary.
         # * Repeat the last line as a last resort.
 
         # First, replace as much as possible without repeating the last line.
         remaining = [(parent, []) for parent, _blocks in pblocks]
         for idx, (parent, blocks) in enumerate(pblocks):
             for (a1, a2, b1, b2), _t in blocks:
                 if a2 - a1 >= b2 - b1:
                     for bk in xrange(b1, b2):
                         if child[0][bk][0] == childfctx:
                             ak = min(a1 + (bk - b1), a2 - 1)
                             child[0][bk] = parent[0][ak]
                 else:
                     remaining[idx][1].append((a1, a2, b1, b2))
 
         # Then, look at anything left, which might involve repeating the last
         # line.
         for parent, blocks in remaining:
             for a1, a2, b1, b2 in blocks:
                 for bk in xrange(b1, b2):
                     if child[0][bk][0] == childfctx:
                         ak = min(a1 + (bk - b1), a2 - 1)
                         child[0][bk] = parent[0][ak]
     return child
 
 class filectx(basefilectx):
     """A filecontext object makes access to data related to a particular
        filerevision convenient."""
     def __init__(self, repo, path, changeid=None, fileid=None,
                  filelog=None, changectx=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         self._repo = repo
         self._path = path
 
         assert (changeid is not None
                 or fileid is not None
                 or changectx is not None), \
                 ("bad args: changeid=%r, fileid=%r, changectx=%r"
                  % (changeid, fileid, changectx))
 
         if filelog is not None:
             self._filelog = filelog
 
         if changeid is not None:
             self._changeid = changeid
         if changectx is not None:
             self._changectx = changectx
         if fileid is not None:
             self._fileid = fileid
 
     @propertycache
     def _changectx(self):
         try:
             return changectx(self._repo, self._changeid)
         except error.FilteredRepoLookupError:
             # Linkrev may point to any revision in the repository.  When the
             # repository is filtered this may lead to `filectx` trying to build
             # `changectx` for filtered revision. In such case we fallback to
             # creating `changectx` on the unfiltered version of the reposition.
             # This fallback should not be an issue because `changectx` from
             # `filectx` are not used in complex operations that care about
             # filtering.
             #
             # This fallback is a cheap and dirty fix that prevent several
             # crashes. It does not ensure the behavior is correct. However the
             # behavior was not correct before filtering either and "incorrect
             # behavior" is seen as better as "crash"
             #
             # Linkrevs have several serious troubles with filtering that are
             # complicated to solve. Proper handling of the issue here should be
             # considered when solving linkrev issue are on the table.
             return changectx(self._repo.unfiltered(), self._changeid)
 
     def filectx(self, fileid, changeid=None):
         '''opens an arbitrary revision of the file without
         opening a new filelog'''
         return filectx(self._repo, self._path, fileid=fileid,
                        filelog=self._filelog, changeid=changeid)
 
     def rawdata(self):
         return self._filelog.revision(self._filenode, raw=True)
 
     def rawflags(self):
         """low-level revlog flags"""
         return self._filelog.flags(self._filerev)
 
     def data(self):
         try:
             return self._filelog.read(self._filenode)
         except error.CensoredNodeError:
             if self._repo.ui.config("censor", "policy") == "ignore":
                 return ""
             raise error.Abort(_("censored node: %s") % short(self._filenode),
                              hint=_("set censor.policy to ignore errors"))
 
     def size(self):
         return self._filelog.size(self._filerev)
 
     @propertycache
     def _copied(self):
         """check if file was actually renamed in this changeset revision
 
         If rename logged in file revision, we report copy for changeset only
         if file revisions linkrev points back to the changeset in question
         or both changeset parents contain different file revisions.
         """
 
         renamed = self._filelog.renamed(self._filenode)
         if not renamed:
             return renamed
 
         if self.rev() == self.linkrev():
             return renamed
 
         name = self.path()
         fnode = self._filenode
         for p in self._changectx.parents():
             try:
                 if fnode == p.filenode(name):
                     return None
             except error.LookupError:
                 pass
         return renamed
 
     def children(self):
         # hard for renames
         c = self._filelog.children(self._filenode)
         return [filectx(self._repo, self._path, fileid=x,
                         filelog=self._filelog) for x in c]
 
 class committablectx(basectx):
     """A committablectx object provides common functionality for a context that
     wants the ability to commit, e.g. workingctx or memctx."""
     def __init__(self, repo, text="", user=None, date=None, extra=None,
                  changes=None):
         self._repo = repo
         self._rev = None
         self._node = None
         self._text = text
         if date:
             self._date = util.parsedate(date)
         if user:
             self._user = user
         if changes:
             self._status = changes
 
         self._extra = {}
         if extra:
             self._extra = extra.copy()
         if 'branch' not in self._extra:
             try:
                 branch = encoding.fromlocal(self._repo.dirstate.branch())
             except UnicodeDecodeError:
                 raise error.Abort(_('branch name not in UTF-8!'))
             self._extra['branch'] = branch
         if self._extra['branch'] == '':
             self._extra['branch'] = 'default'
 
     def __bytes__(self):
         return bytes(self._parents[0]) + "+"
 
     __str__ = encoding.strmethod(__bytes__)
 
     def __nonzero__(self):
         return True
 
     __bool__ = __nonzero__
 
     def _buildflagfunc(self):
         # Create a fallback function for getting file flags when the
         # filesystem doesn't support them
 
         copiesget = self._repo.dirstate.copies().get
         parents = self.parents()
         if len(parents) < 2:
             # when we have one parent, it's easy: copy from parent
             man = parents[0].manifest()
             def func(f):
                 f = copiesget(f, f)
                 return man.flags(f)
         else:
             # merges are tricky: we try to reconstruct the unstored
             # result from the merge (issue1802)
             p1, p2 = parents
             pa = p1.ancestor(p2)
             m1, m2, ma = p1.manifest(), p2.manifest(), pa.manifest()
 
             def func(f):
                 f = copiesget(f, f) # may be wrong for merges with copies
                 fl1, fl2, fla = m1.flags(f), m2.flags(f), ma.flags(f)
                 if fl1 == fl2:
                     return fl1
                 if fl1 == fla:
                     return fl2
                 if fl2 == fla:
                     return fl1
                 return '' # punt for conflicts
 
         return func
 
     @propertycache
     def _flagfunc(self):
         return self._repo.dirstate.flagfunc(self._buildflagfunc)
 
     @propertycache
     def _status(self):
         return self._repo.status()
 
     @propertycache
     def _user(self):
         return self._repo.ui.username()
 
     @propertycache
     def _date(self):
         ui = self._repo.ui
         date = ui.configdate('devel', 'default-date')
         if date is None:
             date = util.makedate()
         return date
 
     def subrev(self, subpath):
         return None
 
     def manifestnode(self):
         return None
     def user(self):
         return self._user or self._repo.ui.username()
     def date(self):
         return self._date
     def description(self):
         return self._text
     def files(self):
         return sorted(self._status.modified + self._status.added +
                       self._status.removed)
 
     def modified(self):
         return self._status.modified
     def added(self):
         return self._status.added
     def removed(self):
         return self._status.removed
     def deleted(self):
         return self._status.deleted
     def branch(self):
         return encoding.tolocal(self._extra['branch'])
     def closesbranch(self):
         return 'close' in self._extra
     def extra(self):
         return self._extra
 
     def tags(self):
         return []
 
     def bookmarks(self):
         b = []
         for p in self.parents():
             b.extend(p.bookmarks())
         return b
 
     def phase(self):
         phase = phases.draft # default phase to draft
         for p in self.parents():
             phase = max(phase, p.phase())
         return phase
 
     def hidden(self):
         return False
 
     def children(self):
         return []
 
     def flags(self, path):
         if r'_manifest' in self.__dict__:
             try:
                 return self._manifest.flags(path)
             except KeyError:
                 return ''
 
         try:
             return self._flagfunc(path)
         except OSError:
             return ''
 
     def ancestor(self, c2):
         """return the "best" ancestor context of self and c2"""
         return self._parents[0].ancestor(c2) # punt on two parents for now
 
     def walk(self, match):
         '''Generates matching file names.'''
         return sorted(self._repo.dirstate.walk(match, sorted(self.substate),
                                                True, False))
 
     def matches(self, match):
         return sorted(self._repo.dirstate.matches(match))
 
     def ancestors(self):
         for p in self._parents:
             yield p
         for a in self._repo.changelog.ancestors(
             [p.rev() for p in self._parents]):
             yield changectx(self._repo, a)
 
     def markcommitted(self, node):
         """Perform post-commit cleanup necessary after committing this ctx
 
         Specifically, this updates backing stores this working context
         wraps to reflect the fact that the changes reflected by this
         workingctx have been committed.  For example, it marks
         modified and added files as normal in the dirstate.
 
         """
 
         with self._repo.dirstate.parentchange():
             for f in self.modified() + self.added():
                 self._repo.dirstate.normal(f)
             for f in self.removed():
                 self._repo.dirstate.drop(f)
             self._repo.dirstate.setparents(node)
 
         # write changes out explicitly, because nesting wlock at
         # runtime may prevent 'wlock.release()' in 'repo.commit()'
         # from immediately doing so for subsequent changing files
         self._repo.dirstate.write(self._repo.currenttransaction())
 
     def dirty(self, missing=False, merge=True, branch=True):
         return False
 
 class workingctx(committablectx):
     """A workingctx object makes access to data related to
     the current working directory convenient.
     date - any valid date string or (unixtime, offset), or None.
     user - username string, or None.
     extra - a dictionary of extra values, or None.
     changes - a list of file lists as returned by localrepo.status()
                or None to use the repository status.
     """
     def __init__(self, repo, text="", user=None, date=None, extra=None,
                  changes=None):
         super(workingctx, self).__init__(repo, text, user, date, extra, changes)
 
     def __iter__(self):
         d = self._repo.dirstate
         for f in d:
             if d[f] != 'r':
                 yield f
 
     def __contains__(self, key):
         return self._repo.dirstate[key] not in "?r"
 
     def hex(self):
         return hex(wdirid)
 
     @propertycache
     def _parents(self):
         p = self._repo.dirstate.parents()
         if p[1] == nullid:
             p = p[:-1]
         return [changectx(self._repo, x) for x in p]
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory"""
         return workingfilectx(self._repo, path, workingctx=self,
                               filelog=filelog)
 
     def dirty(self, missing=False, merge=True, branch=True):
         "check whether a working directory is modified"
         # check subrepos first
         for s in sorted(self.substate):
             if self.sub(s).dirty(missing=missing):
                 return True
         # check current working dir
         return ((merge and self.p2()) or
                 (branch and self.branch() != self.p1().branch()) or
                 self.modified() or self.added() or self.removed() or
                 (missing and self.deleted()))
 
     def add(self, list, prefix=""):
         with self._repo.wlock():
             ui, ds = self._repo.ui, self._repo.dirstate
             uipath = lambda f: ds.pathto(pathutil.join(prefix, f))
             rejected = []
             lstat = self._repo.wvfs.lstat
             for f in list:
                 # ds.pathto() returns an absolute file when this is invoked from
                 # the keyword extension.  That gets flagged as non-portable on
                 # Windows, since it contains the drive letter and colon.
                 scmutil.checkportable(ui, os.path.join(prefix, f))
                 try:
                     st = lstat(f)
                 except OSError:
                     ui.warn(_("%s does not exist!\n") % uipath(f))
                     rejected.append(f)
                     continue
                 if st.st_size > 10000000:
                     ui.warn(_("%s: up to %d MB of RAM may be required "
                               "to manage this file\n"
                               "(use 'hg revert %s' to cancel the "
                               "pending addition)\n")
                             % (f, 3 * st.st_size // 1000000, uipath(f)))
                 if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
                     ui.warn(_("%s not added: only files and symlinks "
                               "supported currently\n") % uipath(f))
                     rejected.append(f)
                 elif ds[f] in 'amn':
                     ui.warn(_("%s already tracked!\n") % uipath(f))
                 elif ds[f] == 'r':
                     ds.normallookup(f)
                 else:
                     ds.add(f)
             return rejected
 
     def forget(self, files, prefix=""):
         with self._repo.wlock():
             ds = self._repo.dirstate
             uipath = lambda f: ds.pathto(pathutil.join(prefix, f))
             rejected = []
             for f in files:
                 if f not in self._repo.dirstate:
                     self._repo.ui.warn(_("%s not tracked!\n") % uipath(f))
                     rejected.append(f)
                 elif self._repo.dirstate[f] != 'a':
                     self._repo.dirstate.remove(f)
                 else:
                     self._repo.dirstate.drop(f)
             return rejected
 
     def undelete(self, list):
         pctxs = self.parents()
         with self._repo.wlock():
             ds = self._repo.dirstate
             for f in list:
                 if self._repo.dirstate[f] != 'r':
                     self._repo.ui.warn(_("%s not removed!\n") % ds.pathto(f))
                 else:
                     fctx = f in pctxs[0] and pctxs[0][f] or pctxs[1][f]
                     t = fctx.data()
                     self._repo.wwrite(f, t, fctx.flags())
                     self._repo.dirstate.normal(f)
 
     def copy(self, source, dest):
         try:
             st = self._repo.wvfs.lstat(dest)
         except OSError as err:
             if err.errno != errno.ENOENT:
                 raise
             self._repo.ui.warn(_("%s does not exist!\n")
                                % self._repo.dirstate.pathto(dest))
             return
         if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
             self._repo.ui.warn(_("copy failed: %s is not a file or a "
                                  "symbolic link\n")
                                % self._repo.dirstate.pathto(dest))
         else:
             with self._repo.wlock():
                 if self._repo.dirstate[dest] in '?':
                     self._repo.dirstate.add(dest)
                 elif self._repo.dirstate[dest] in 'r':
                     self._repo.dirstate.normallookup(dest)
                 self._repo.dirstate.copy(source, dest)
 
     def match(self, pats=None, include=None, exclude=None, default='glob',
               listsubrepos=False, badfn=None):
         r = self._repo
 
         # Only a case insensitive filesystem needs magic to translate user input
         # to actual case in the filesystem.
         icasefs = not util.fscasesensitive(r.root)
         return matchmod.match(r.root, r.getcwd(), pats, include, exclude,
                               default, auditor=r.auditor, ctx=self,
                               listsubrepos=listsubrepos, badfn=badfn,
                               icasefs=icasefs)
 
     def _filtersuspectsymlink(self, files):
         if not files or self._repo.dirstate._checklink:
             return files
 
         # Symlink placeholders may get non-symlink-like contents
         # via user error or dereferencing by NFS or Samba servers,
         # so we filter out any placeholders that don't look like a
         # symlink
         sane = []
         for f in files:
             if self.flags(f) == 'l':
                 d = self[f].data()
                 if d == '' or len(d) >= 1024 or '\n' in d or util.binary(d):
                     self._repo.ui.debug('ignoring suspect symlink placeholder'
                                         ' "%s"\n' % f)
                     continue
             sane.append(f)
         return sane
 
     def _checklookup(self, files):
         # check for any possibly clean files
         if not files:
             return [], [], []
 
         modified = []
         deleted = []
         fixup = []
         pctx = self._parents[0]
         # do a full compare of any files that might have changed
         for f in sorted(files):
             try:
                 # This will return True for a file that got replaced by a
                 # directory in the interim, but fixing that is pretty hard.
                 if (f not in pctx or self.flags(f) != pctx.flags(f)
                     or pctx[f].cmp(self[f])):
                     modified.append(f)
                 else:
                     fixup.append(f)
             except (IOError, OSError):
                 # A file become inaccessible in between? Mark it as deleted,
                 # matching dirstate behavior (issue5584).
                 # The dirstate has more complex behavior around whether a
                 # missing file matches a directory, etc, but we don't need to
                 # bother with that: if f has made it to this point, we're sure
                 # it's in the dirstate.
                 deleted.append(f)
 
         return modified, deleted, fixup
 
     def _poststatusfixup(self, status, fixup):
         """update dirstate for files that are actually clean"""
         poststatus = self._repo.postdsstatus()
         if fixup or poststatus:
             try:
                 oldid = self._repo.dirstate.identity()
 
                 # updating the dirstate is optional
                 # so we don't wait on the lock
                 # wlock can invalidate the dirstate, so cache normal _after_
                 # taking the lock
                 with self._repo.wlock(False):
                     if self._repo.dirstate.identity() == oldid:
                         if fixup:
                             normal = self._repo.dirstate.normal
                             for f in fixup:
                                 normal(f)
                             # write changes out explicitly, because nesting
                             # wlock at runtime may prevent 'wlock.release()'
                             # after this block from doing so for subsequent
                             # changing files
                             tr = self._repo.currenttransaction()
                             self._repo.dirstate.write(tr)
 
                         if poststatus:
                             for ps in poststatus:
                                 ps(self, status)
                     else:
                         # in this case, writing changes out breaks
                         # consistency, because .hg/dirstate was
                         # already changed simultaneously after last
                         # caching (see also issue5584 for detail)
                         self._repo.ui.debug('skip updating dirstate: '
                                             'identity mismatch\n')
             except error.LockError:
                 pass
             finally:
                 # Even if the wlock couldn't be grabbed, clear out the list.
                 self._repo.clearpostdsstatus()
 
     def _dirstatestatus(self, match=None, ignored=False, clean=False,
                         unknown=False):
         '''Gets the status from the dirstate -- internal use only.'''
         listignored, listclean, listunknown = ignored, clean, unknown
         match = match or matchmod.always(self._repo.root, self._repo.getcwd())
         subrepos = []
         if '.hgsub' in self:
             subrepos = sorted(self.substate)
         cmp, s = self._repo.dirstate.status(match, subrepos, listignored,
                                             listclean, listunknown)
 
         # check for any possibly clean files
         fixup = []
         if cmp:
             modified2, deleted2, fixup = self._checklookup(cmp)
             s.modified.extend(modified2)
             s.deleted.extend(deleted2)
 
             if fixup and listclean:
                 s.clean.extend(fixup)
 
         self._poststatusfixup(s, fixup)
 
         if match.always():
             # cache for performance
             if s.unknown or s.ignored or s.clean:
                 # "_status" is cached with list*=False in the normal route
                 self._status = scmutil.status(s.modified, s.added, s.removed,
                                               s.deleted, [], [], [])
             else:
                 self._status = s
 
         return s
 
     @propertycache
     def _manifest(self):
         """generate a manifest corresponding to the values in self._status
 
         This reuse the file nodeid from parent, but we use special node
         identifiers for added and modified files. This is used by manifests
         merge to see that files are different and by update logic to avoid
         deleting newly added files.
         """
         return self._buildstatusmanifest(self._status)
 
     def _buildstatusmanifest(self, status):
         """Builds a manifest that includes the given status results."""
         parents = self.parents()
 
         man = parents[0].manifest().copy()
 
         ff = self._flagfunc
         for i, l in ((addednodeid, status.added),
                      (modifiednodeid, status.modified)):
             for f in l:
                 man[f] = i
                 try:
                     man.setflag(f, ff(f))
                 except OSError:
                     pass
 
         for f in status.deleted + status.removed:
             if f in man:
                 del man[f]
 
         return man
 
     def _buildstatus(self, other, s, match, listignored, listclean,
                      listunknown):
         """build a status with respect to another context
 
         This includes logic for maintaining the fast path of status when
         comparing the working directory against its parent, which is to skip
         building a new manifest if self (working directory) is not comparing
         against its parent (repo['.']).
         """
         s = self._dirstatestatus(match, listignored, listclean, listunknown)
         # Filter out symlinks that, in the case of FAT32 and NTFS filesystems,
         # might have accidentally ended up with the entire contents of the file
         # they are supposed to be linking to.
         s.modified[:] = self._filtersuspectsymlink(s.modified)
         if other != self._repo['.']:
             s = super(workingctx, self)._buildstatus(other, s, match,
                                                      listignored, listclean,
                                                      listunknown)
         return s
 
     def _matchstatus(self, other, match):
         """override the match method with a filter for directory patterns
 
         We use inheritance to customize the match.bad method only in cases of
         workingctx since it belongs only to the working directory when
         comparing against the parent changeset.
 
         If we aren't comparing against the working directory's parent, then we
         just use the default match object sent to us.
         """
         superself = super(workingctx, self)
         match = superself._matchstatus(other, match)
         if other != self._repo['.']:
             def bad(f, msg):
                 # 'f' may be a directory pattern from 'match.files()',
                 # so 'f not in ctx1' is not enough
                 if f not in other and not other.hasdir(f):
                     self._repo.ui.warn('%s: %s\n' %
                                        (self._repo.dirstate.pathto(f), msg))
             match.bad = bad
         return match
 
     def markcommitted(self, node):
         super(workingctx, self).markcommitted(node)
 
         sparse.aftercommit(self._repo, node)
 
 class committablefilectx(basefilectx):
     """A committablefilectx provides common functionality for a file context
     that wants the ability to commit, e.g. workingfilectx or memfilectx."""
     def __init__(self, repo, path, filelog=None, ctx=None):
         self._repo = repo
         self._path = path
         self._changeid = None
         self._filerev = self._filenode = None
 
         if filelog is not None:
             self._filelog = filelog
         if ctx:
             self._changectx = ctx
 
     def __nonzero__(self):
         return True
 
     __bool__ = __nonzero__
 
     def linkrev(self):
         # linked to self._changectx no matter if file is modified or not
         return self.rev()
 
     def parents(self):
         '''return parent filectxs, following copies if necessary'''
         def filenode(ctx, path):
             return ctx._manifest.get(path, nullid)
 
         path = self._path
         fl = self._filelog
         pcl = self._changectx._parents
         renamed = self.renamed()
 
         if renamed:
             pl = [renamed + (None,)]
         else:
             pl = [(path, filenode(pcl[0], path), fl)]
 
         for pc in pcl[1:]:
             pl.append((path, filenode(pc, path), fl))
 
         return [self._parentfilectx(p, fileid=n, filelog=l)
                 for p, n, l in pl if n != nullid]
 
     def children(self):
         return []
 
 class workingfilectx(committablefilectx):
     """A workingfilectx object makes access to data related to a particular
        file in the working directory convenient."""
     def __init__(self, repo, path, filelog=None, workingctx=None):
         super(workingfilectx, self).__init__(repo, path, filelog, workingctx)
 
     @propertycache
     def _changectx(self):
         return workingctx(self._repo)
 
     def data(self):
         return self._repo.wread(self._path)
     def renamed(self):
         rp = self._repo.dirstate.copied(self._path)
         if not rp:
             return None
         return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
 
     def size(self):
         return self._repo.wvfs.lstat(self._path).st_size
     def date(self):
         t, tz = self._changectx.date()
         try:
             return (self._repo.wvfs.lstat(self._path).st_mtime, tz)
         except OSError as err:
             if err.errno != errno.ENOENT:
                 raise
             return (t, tz)
 
     def exists(self):
         return self._repo.wvfs.exists(self._path)
 
     def lexists(self):
         return self._repo.wvfs.lexists(self._path)
 
     def audit(self):
         return self._repo.wvfs.audit(self._path)
 
     def cmp(self, fctx):
         """compare with other file context
 
         returns True if different than fctx.
         """
         # fctx should be a filectx (not a workingfilectx)
         # invert comparison to reuse the same code path
         return fctx.cmp(self)
 
     def remove(self, ignoremissing=False):
         """wraps unlink for a repo's working directory"""
         self._repo.wvfs.unlinkpath(self._path, ignoremissing=ignoremissing)
 
     def write(self, data, flags, backgroundclose=False):
         """wraps repo.wwrite"""
         self._repo.wwrite(self._path, data, flags,
                           backgroundclose=backgroundclose)
 
     def setflags(self, l, x):
         self._repo.wvfs.setflags(self._path, l, x)
 
 class workingcommitctx(workingctx):
     """A workingcommitctx object makes access to data related to
     the revision being committed convenient.
 
     This hides changes in the working directory, if they aren't
     committed in this context.
     """
     def __init__(self, repo, changes,
                  text="", user=None, date=None, extra=None):
         super(workingctx, self).__init__(repo, text, user, date, extra,
                                          changes)
 
     def _dirstatestatus(self, match=None, ignored=False, clean=False,
                         unknown=False):
         """Return matched files only in ``self._status``
 
         Uncommitted files appear "clean" via this context, even if
         they aren't actually so in the working directory.
         """
         match = match or matchmod.always(self._repo.root, self._repo.getcwd())
         if clean:
             clean = [f for f in self._manifest if f not in self._changedset]
         else:
             clean = []
         return scmutil.status([f for f in self._status.modified if match(f)],
                               [f for f in self._status.added if match(f)],
                               [f for f in self._status.removed if match(f)],
                               [], [], [], clean)
 
     @propertycache
     def _changedset(self):
         """Return the set of files changed in this context
         """
         changed = set(self._status.modified)
         changed.update(self._status.added)
         changed.update(self._status.removed)
         return changed
 
 def makecachingfilectxfn(func):
     """Create a filectxfn that caches based on the path.
 
     We can't use util.cachefunc because it uses all arguments as the cache
     key and this creates a cycle since the arguments include the repo and
     memctx.
     """
     cache = {}
 
     def getfilectx(repo, memctx, path):
         if path not in cache:
             cache[path] = func(repo, memctx, path)
         return cache[path]
 
     return getfilectx
 
 def memfilefromctx(ctx):
     """Given a context return a memfilectx for ctx[path]
 
     This is a convenience method for building a memctx based on another
     context.
     """
     def getfilectx(repo, memctx, path):
         fctx = ctx[path]
         # this is weird but apparently we only keep track of one parent
         # (why not only store that instead of a tuple?)
         copied = fctx.renamed()
         if copied:
             copied = copied[0]
         return memfilectx(repo, path, fctx.data(),
                           islink=fctx.islink(), isexec=fctx.isexec(),
                           copied=copied, memctx=memctx)
 
     return getfilectx
 
 def memfilefrompatch(patchstore):
     """Given a patch (e.g. patchstore object) return a memfilectx
 
     This is a convenience method for building a memctx based on a patchstore.
     """
     def getfilectx(repo, memctx, path):
         data, mode, copied = patchstore.getfile(path)
         if data is None:
             return None
         islink, isexec = mode
         return memfilectx(repo, path, data, islink=islink,
                           isexec=isexec, copied=copied,
                           memctx=memctx)
 
     return getfilectx
 
 class memctx(committablectx):
     """Use memctx to perform in-memory commits via localrepo.commitctx().
 
     Revision information is supplied at initialization time while
     related files data and is made available through a callback
     mechanism.  'repo' is the current localrepo, 'parents' is a
     sequence of two parent revisions identifiers (pass None for every
     missing parent), 'text' is the commit message and 'files' lists
     names of files touched by the revision (normalized and relative to
     repository root).
 
     filectxfn(repo, memctx, path) is a callable receiving the
     repository, the current memctx object and the normalized path of
     requested file, relative to repository root. It is fired by the
     commit function for every file in 'files', but calls order is
     undefined. If the file is available in the revision being
     committed (updated or added), filectxfn returns a memfilectx
     object. If the file was removed, filectxfn return None for recent
     Mercurial. Moved files are represented by marking the source file
     removed and the new file added with copy information (see
     memfilectx).
 
     user receives the committer name and defaults to current
     repository username, date is the commit date in any format
     supported by util.parsedate() and defaults to current date, extra
     is a dictionary of metadata or is left empty.
     """
 
     # Mercurial <= 3.1 expects the filectxfn to raise IOError for missing files.
     # Extensions that need to retain compatibility across Mercurial 3.1 can use
     # this field to determine what to do in filectxfn.
     _returnnoneformissingfiles = True
 
     def __init__(self, repo, parents, text, files, filectxfn, user=None,
                  date=None, extra=None, branch=None, editor=False):
         super(memctx, self).__init__(repo, text, user, date, extra)
         self._rev = None
         self._node = None
         parents = [(p or nullid) for p in parents]
         p1, p2 = parents
         self._parents = [changectx(self._repo, p) for p in (p1, p2)]
         files = sorted(set(files))
         self._files = files
         if branch is not None:
             self._extra['branch'] = encoding.fromlocal(branch)
         self.substate = {}
 
         if isinstance(filectxfn, patch.filestore):
             filectxfn = memfilefrompatch(filectxfn)
         elif not callable(filectxfn):
             # if store is not callable, wrap it in a function
             filectxfn = memfilefromctx(filectxfn)
 
         # memoizing increases performance for e.g. vcs convert scenarios.
         self._filectxfn = makecachingfilectxfn(filectxfn)
 
         if editor:
             self._text = editor(self._repo, self, [])
             self._repo.savecommitmessage(self._text)
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory
 
         Returns None if file doesn't exist and should be removed."""
         return self._filectxfn(self._repo, self, path)
 
     def commit(self):
         """commit context to the repo"""
         return self._repo.commitctx(self)
 
     @propertycache
     def _manifest(self):
         """generate a manifest based on the return values of filectxfn"""
 
         # keep this simple for now; just worry about p1
         pctx = self._parents[0]
         man = pctx.manifest().copy()
 
         for f in self._status.modified:
             p1node = nullid
             p2node = nullid
             p = pctx[f].parents() # if file isn't in pctx, check p2?
             if len(p) > 0:
                 p1node = p[0].filenode()
                 if len(p) > 1:
                     p2node = p[1].filenode()
             man[f] = revlog.hash(self[f].data(), p1node, p2node)
 
         for f in self._status.added:
             man[f] = revlog.hash(self[f].data(), nullid, nullid)
 
         for f in self._status.removed:
             if f in man:
                 del man[f]
 
         return man
 
     @propertycache
     def _status(self):
         """Calculate exact status from ``files`` specified at construction
         """
         man1 = self.p1().manifest()
         p2 = self._parents[1]
         # "1 < len(self._parents)" can't be used for checking
         # existence of the 2nd parent, because "memctx._parents" is
         # explicitly initialized by the list, of which length is 2.
         if p2.node() != nullid:
             man2 = p2.manifest()
             managing = lambda f: f in man1 or f in man2
         else:
             managing = lambda f: f in man1
 
         modified, added, removed = [], [], []
         for f in self._files:
             if not managing(f):
                 added.append(f)
             elif self[f]:
                 modified.append(f)
             else:
                 removed.append(f)
 
         return scmutil.status(modified, added, removed, [], [], [], [])
 
 class memfilectx(committablefilectx):
     """memfilectx represents an in-memory file to commit.
 
     See memctx and committablefilectx for more details.
     """
     def __init__(self, repo, path, data, islink=False,
                  isexec=False, copied=None, memctx=None):
         """
         path is the normalized file path relative to repository root.
         data is the file content as a string.
         islink is True if the file is a symbolic link.
         isexec is True if the file is executable.
         copied is the source file path if current file was copied in the
         revision being committed, or None."""
         super(memfilectx, self).__init__(repo, path, None, memctx)
         self._data = data
         self._flags = (islink and 'l' or '') + (isexec and 'x' or '')
         self._copied = None
         if copied:
             self._copied = (copied, nullid)
 
     def data(self):
         return self._data
 
     def remove(self, ignoremissing=False):
         """wraps unlink for a repo's working directory"""
         # need to figure out what to do here
         del self._changectx[self._path]
 
     def write(self, data, flags):
         """wraps repo.wwrite"""
         self._data = data
 
 class overlayfilectx(committablefilectx):
     """Like memfilectx but take an original filectx and optional parameters to
     override parts of it. This is useful when fctx.data() is expensive (i.e.
     flag processor is expensive) and raw data, flags, and filenode could be
     reused (ex. rebase or mode-only amend a REVIDX_EXTSTORED file).
     """
 
     def __init__(self, originalfctx, datafunc=None, path=None, flags=None,
                  copied=None, ctx=None):
         """originalfctx: filecontext to duplicate
 
         datafunc: None or a function to override data (file content). It is a
         function to be lazy. path, flags, copied, ctx: None or overridden value
 
         copied could be (path, rev), or False. copied could also be just path,
         and will be converted to (path, nullid). This simplifies some callers.
         """
 
         if path is None:
             path = originalfctx.path()
         if ctx is None:
             ctx = originalfctx.changectx()
             ctxmatch = lambda: True
         else:
             ctxmatch = lambda: ctx == originalfctx.changectx()
 
         repo = originalfctx.repo()
         flog = originalfctx.filelog()
         super(overlayfilectx, self).__init__(repo, path, flog, ctx)
 
         if copied is None:
             copied = originalfctx.renamed()
             copiedmatch = lambda: True
         else:
             if copied and not isinstance(copied, tuple):
                 # repo._filecommit will recalculate copyrev so nullid is okay
                 copied = (copied, nullid)
             copiedmatch = lambda: copied == originalfctx.renamed()
 
         # When data, copied (could affect data), ctx (could affect filelog
         # parents) are not overridden, rawdata, rawflags, and filenode may be
         # reused (repo._filecommit should double check filelog parents).
         #
         # path, flags are not hashed in filelog (but in manifestlog) so they do
         # not affect reusable here.
         #
         # If ctx or copied is overridden to a same value with originalfctx,
         # still consider it's reusable. originalfctx.renamed() may be a bit
         # expensive so it's not called unless necessary. Assuming datafunc is
         # always expensive, do not call it for this "reusable" test.
         reusable = datafunc is None and ctxmatch() and copiedmatch()
 
         if datafunc is None:
             datafunc = originalfctx.data
         if flags is None:
             flags = originalfctx.flags()
 
         self._datafunc = datafunc
         self._flags = flags
         self._copied = copied
 
         if reusable:
             # copy extra fields from originalfctx
             attrs = ['rawdata', 'rawflags', '_filenode', '_filerev']
             for attr in attrs:
                 if util.safehasattr(originalfctx, attr):
                     setattr(self, attr, getattr(originalfctx, attr))
 
     def data(self):
         return self._datafunc()
 
 class metadataonlyctx(committablectx):
     """Like memctx but it's reusing the manifest of different commit.
     Intended to be used by lightweight operations that are creating
     metadata-only changes.
 
     Revision information is supplied at initialization time.  'repo' is the
     current localrepo, 'ctx' is original revision which manifest we're reuisng
     'parents' is a sequence of two parent revisions identifiers (pass None for
     every missing parent), 'text' is the commit.
 
     user receives the committer name and defaults to current repository
     username, date is the commit date in any format supported by
     util.parsedate() and defaults to current date, extra is a dictionary of
     metadata or is left empty.
     """
     def __new__(cls, repo, originalctx, *args, **kwargs):
         return super(metadataonlyctx, cls).__new__(cls, repo)
 
     def __init__(self, repo, originalctx, parents, text, user=None, date=None,
                  extra=None, editor=False):
         super(metadataonlyctx, self).__init__(repo, text, user, date, extra)
         self._rev = None
         self._node = None
         self._originalctx = originalctx
         self._manifestnode = originalctx.manifestnode()
         parents = [(p or nullid) for p in parents]
         p1, p2 = self._parents = [changectx(self._repo, p) for p in parents]
 
         # sanity check to ensure that the reused manifest parents are
         # manifests of our commit parents
         mp1, mp2 = self.manifestctx().parents
         if p1 != nullid and p1.manifestnode() != mp1:
             raise RuntimeError('can\'t reuse the manifest: '
                                'its p1 doesn\'t match the new ctx p1')
         if p2 != nullid and p2.manifestnode() != mp2:
             raise RuntimeError('can\'t reuse the manifest: '
                                'its p2 doesn\'t match the new ctx p2')
 
         self._files = originalctx.files()
         self.substate = {}
 
         if editor:
             self._text = editor(self._repo, self, [])
             self._repo.savecommitmessage(self._text)
 
     def manifestnode(self):
         return self._manifestnode
 
     @property
     def _manifestctx(self):
         return self._repo.manifestlog[self._manifestnode]
 
     def filectx(self, path, filelog=None):
         return self._originalctx.filectx(path, filelog=filelog)
 
     def commit(self):
         """commit context to the repo"""
         return self._repo.commitctx(self)
 
     @property
     def _manifest(self):
         return self._originalctx.manifest()
 
     @propertycache
     def _status(self):
         """Calculate exact status from ``files`` specified in the ``origctx``
         and parents manifests.
         """
         man1 = self.p1().manifest()
         p2 = self._parents[1]
         # "1 < len(self._parents)" can't be used for checking
         # existence of the 2nd parent, because "metadataonlyctx._parents" is
         # explicitly initialized by the list, of which length is 2.
         if p2.node() != nullid:
             man2 = p2.manifest()
             managing = lambda f: f in man1 or f in man2
         else:
             managing = lambda f: f in man1
 
         modified, added, removed = [], [], []
         for f in self._files:
             if not managing(f):
                 added.append(f)
             elif self[f]:
                 modified.append(f)
             else:
                 removed.append(f)
 
         return scmutil.status(modified, added, removed, [], [], [], [])

mercurial/exchange.py

@@ -1,2012 +1,2013 b''
 # exchange.py - utility to exchange data between repos.
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import errno
 import hashlib
 
 from .i18n import _
 from .node import (
     hex,
     nullid,
 )
 from . import (
     bookmarks as bookmod,
     bundle2,
     changegroup,
     discovery,
     error,
     lock as lockmod,
     obsolete,
     phases,
     pushkey,
     pycompat,
     scmutil,
     sslutil,
     streamclone,
     url as urlmod,
     util,
 )
 
 urlerr = util.urlerr
 urlreq = util.urlreq
 
 # Maps bundle version human names to changegroup versions.
 _bundlespeccgversions = {'v1': '01',
                          'v2': '02',
                          'packed1': 's1',
                          'bundle2': '02', #legacy
                         }
 
 # Compression engines allowed in version 1. THIS SHOULD NEVER CHANGE.
 _bundlespecv1compengines = {'gzip', 'bzip2', 'none'}
 
 def parsebundlespec(repo, spec, strict=True, externalnames=False):
     """Parse a bundle string specification into parts.
 
     Bundle specifications denote a well-defined bundle/exchange format.
     The content of a given specification should not change over time in
     order to ensure that bundles produced by a newer version of Mercurial are
     readable from an older version.
 
     The string currently has the form:
 
        <compression>-<type>[;<parameter0>[;<parameter1>]]
 
     Where <compression> is one of the supported compression formats
     and <type> is (currently) a version string. A ";" can follow the type and
     all text afterwards is interpreted as URI encoded, ";" delimited key=value
     pairs.
 
     If ``strict`` is True (the default) <compression> is required. Otherwise,
     it is optional.
 
     If ``externalnames`` is False (the default), the human-centric names will
     be converted to their internal representation.
 
     Returns a 3-tuple of (compression, version, parameters). Compression will
     be ``None`` if not in strict mode and a compression isn't defined.
 
     An ``InvalidBundleSpecification`` is raised when the specification is
     not syntactically well formed.
 
     An ``UnsupportedBundleSpecification`` is raised when the compression or
     bundle type/version is not recognized.
 
     Note: this function will likely eventually return a more complex data
     structure, including bundle2 part information.
     """
     def parseparams(s):
         if ';' not in s:
             return s, {}
 
         params = {}
         version, paramstr = s.split(';', 1)
 
         for p in paramstr.split(';'):
             if '=' not in p:
                 raise error.InvalidBundleSpecification(
                     _('invalid bundle specification: '
                       'missing "=" in parameter: %s') % p)
 
             key, value = p.split('=', 1)
             key = urlreq.unquote(key)
             value = urlreq.unquote(value)
             params[key] = value
 
         return version, params
 
 
     if strict and '-' not in spec:
         raise error.InvalidBundleSpecification(
                 _('invalid bundle specification; '
                   'must be prefixed with compression: %s') % spec)
 
     if '-' in spec:
         compression, version = spec.split('-', 1)
 
         if compression not in util.compengines.supportedbundlenames:
             raise error.UnsupportedBundleSpecification(
                     _('%s compression is not supported') % compression)
 
         version, params = parseparams(version)
 
         if version not in _bundlespeccgversions:
             raise error.UnsupportedBundleSpecification(
                     _('%s is not a recognized bundle version') % version)
     else:
         # Value could be just the compression or just the version, in which
         # case some defaults are assumed (but only when not in strict mode).
         assert not strict
 
         spec, params = parseparams(spec)
 
         if spec in util.compengines.supportedbundlenames:
             compression = spec
             version = 'v1'
             # Generaldelta repos require v2.
             if 'generaldelta' in repo.requirements:
                 version = 'v2'
             # Modern compression engines require v2.
             if compression not in _bundlespecv1compengines:
                 version = 'v2'
         elif spec in _bundlespeccgversions:
             if spec == 'packed1':
                 compression = 'none'
             else:
                 compression = 'bzip2'
             version = spec
         else:
             raise error.UnsupportedBundleSpecification(
                     _('%s is not a recognized bundle specification') % spec)
 
     # Bundle version 1 only supports a known set of compression engines.
     if version == 'v1' and compression not in _bundlespecv1compengines:
         raise error.UnsupportedBundleSpecification(
             _('compression engine %s is not supported on v1 bundles') %
             compression)
 
     # The specification for packed1 can optionally declare the data formats
     # required to apply it. If we see this metadata, compare against what the
     # repo supports and error if the bundle isn't compatible.
     if version == 'packed1' and 'requirements' in params:
         requirements = set(params['requirements'].split(','))
         missingreqs = requirements - repo.supportedformats
         if missingreqs:
             raise error.UnsupportedBundleSpecification(
                     _('missing support for repository features: %s') %
                       ', '.join(sorted(missingreqs)))
 
     if not externalnames:
         engine = util.compengines.forbundlename(compression)
         compression = engine.bundletype()[1]
         version = _bundlespeccgversions[version]
     return compression, version, params
 
 def readbundle(ui, fh, fname, vfs=None):
     header = changegroup.readexactly(fh, 4)
 
     alg = None
     if not fname:
         fname = "stream"
         if not header.startswith('HG') and header.startswith('\0'):
             fh = changegroup.headerlessfixup(fh, header)
             header = "HG10"
             alg = 'UN'
     elif vfs:
         fname = vfs.join(fname)
 
     magic, version = header[0:2], header[2:4]
 
     if magic != 'HG':
         raise error.Abort(_('%s: not a Mercurial bundle') % fname)
     if version == '10':
         if alg is None:
             alg = changegroup.readexactly(fh, 2)
         return changegroup.cg1unpacker(fh, alg)
     elif version.startswith('2'):
         return bundle2.getunbundler(ui, fh, magicstring=magic + version)
     elif version == 'S1':
         return streamclone.streamcloneapplier(fh)
     else:
         raise error.Abort(_('%s: unknown bundle version %s') % (fname, version))
 
 def getbundlespec(ui, fh):
     """Infer the bundlespec from a bundle file handle.
 
     The input file handle is seeked and the original seek position is not
     restored.
     """
     def speccompression(alg):
         try:
             return util.compengines.forbundletype(alg).bundletype()[0]
         except KeyError:
             return None
 
     b = readbundle(ui, fh, None)
     if isinstance(b, changegroup.cg1unpacker):
         alg = b._type
         if alg == '_truncatedBZ':
             alg = 'BZ'
         comp = speccompression(alg)
         if not comp:
             raise error.Abort(_('unknown compression algorithm: %s') % alg)
         return '%s-v1' % comp
     elif isinstance(b, bundle2.unbundle20):
         if 'Compression' in b.params:
             comp = speccompression(b.params['Compression'])
             if not comp:
                 raise error.Abort(_('unknown compression algorithm: %s') % comp)
         else:
             comp = 'none'
 
         version = None
         for part in b.iterparts():
             if part.type == 'changegroup':
                 version = part.params['version']
                 if version in ('01', '02'):
                     version = 'v2'
                 else:
                     raise error.Abort(_('changegroup version %s does not have '
                                         'a known bundlespec') % version,
                                       hint=_('try upgrading your Mercurial '
                                               'client'))
 
         if not version:
             raise error.Abort(_('could not identify changegroup version in '
                                 'bundle'))
 
         return '%s-%s' % (comp, version)
     elif isinstance(b, streamclone.streamcloneapplier):
         requirements = streamclone.readbundle1header(fh)[2]
         params = 'requirements=%s' % ','.join(sorted(requirements))
         return 'none-packed1;%s' % urlreq.quote(params)
     else:
         raise error.Abort(_('unknown bundle type: %s') % b)
 
 def _computeoutgoing(repo, heads, common):
     """Computes which revs are outgoing given a set of common
     and a set of heads.
 
     This is a separate function so extensions can have access to
     the logic.
 
     Returns a discovery.outgoing object.
     """
     cl = repo.changelog
     if common:
         hasnode = cl.hasnode
         common = [n for n in common if hasnode(n)]
     else:
         common = [nullid]
     if not heads:
         heads = cl.heads()
     return discovery.outgoing(repo, common, heads)
 
 def _forcebundle1(op):
     """return true if a pull/push must use bundle1
 
     This function is used to allow testing of the older bundle version"""
     ui = op.repo.ui
     forcebundle1 = False
     # The goal is this config is to allow developer to choose the bundle
     # version used during exchanged. This is especially handy during test.
     # Value is a list of bundle version to be picked from, highest version
     # should be used.
     #
     # developer config: devel.legacy.exchange
     exchange = ui.configlist('devel', 'legacy.exchange')
     forcebundle1 = 'bundle2' not in exchange and 'bundle1' in exchange
     return forcebundle1 or not op.remote.capable('bundle2')
 
 class pushoperation(object):
     """A object that represent a single push operation
 
     Its purpose is to carry push related state and very common operations.
 
     A new pushoperation should be created at the beginning of each push and
     discarded afterward.
     """
 
     def __init__(self, repo, remote, force=False, revs=None, newbranch=False,
                  bookmarks=()):
         # repo we push from
         self.repo = repo
         self.ui = repo.ui
         # repo we push to
         self.remote = remote
         # force option provided
         self.force = force
         # revs to be pushed (None is "all")
         self.revs = revs
         # bookmark explicitly pushed
         self.bookmarks = bookmarks
         # allow push of new branch
         self.newbranch = newbranch
         # did a local lock get acquired?
         self.locallocked = None
         # step already performed
         # (used to check what steps have been already performed through bundle2)
         self.stepsdone = set()
         # Integer version of the changegroup push result
         # - None means nothing to push
         # - 0 means HTTP error
         # - 1 means we pushed and remote head count is unchanged *or*
         #   we have outgoing changesets but refused to push
         # - other values as described by addchangegroup()
         self.cgresult = None
         # Boolean value for the bookmark push
         self.bkresult = None
         # discover.outgoing object (contains common and outgoing data)
         self.outgoing = None
         # all remote topological heads before the push
         self.remoteheads = None
         # Details of the remote branch pre and post push
         #
         # mapping: {'branch': ([remoteheads],
         #                      [newheads],
         #                      [unsyncedheads],
         #                      [discardedheads])}
         # - branch: the branch name
         # - remoteheads: the list of remote heads known locally
         #                None if the branch is new
         # - newheads: the new remote heads (known locally) with outgoing pushed
         # - unsyncedheads: the list of remote heads unknown locally.
         # - discardedheads: the list of remote heads made obsolete by the push
         self.pushbranchmap = None
         # testable as a boolean indicating if any nodes are missing locally.
         self.incoming = None
         # phases changes that must be pushed along side the changesets
         self.outdatedphases = None
         # phases changes that must be pushed if changeset push fails
         self.fallbackoutdatedphases = None
         # outgoing obsmarkers
         self.outobsmarkers = set()
         # outgoing bookmarks
         self.outbookmarks = []
         # transaction manager
         self.trmanager = None
         # map { pushkey partid -> callback handling failure}
         # used to handle exception from mandatory pushkey part failure
         self.pkfailcb = {}
 
     @util.propertycache
     def futureheads(self):
         """future remote heads if the changeset push succeeds"""
         return self.outgoing.missingheads
 
     @util.propertycache
     def fallbackheads(self):
         """future remote heads if the changeset push fails"""
         if self.revs is None:
             # not target to push, all common are relevant
             return self.outgoing.commonheads
         unfi = self.repo.unfiltered()
         # I want cheads = heads(::missingheads and ::commonheads)
         # (missingheads is revs with secret changeset filtered out)
         #
         # This can be expressed as:
         #     cheads = ( (missingheads and ::commonheads)
         #              + (commonheads and ::missingheads))"
         #              )
         #
         # while trying to push we already computed the following:
         #     common = (::commonheads)
         #     missing = ((commonheads::missingheads) - commonheads)
         #
         # We can pick:
         # * missingheads part of common (::commonheads)
         common = self.outgoing.common
         nm = self.repo.changelog.nodemap
         cheads = [node for node in self.revs if nm[node] in common]
         # and
         # * commonheads parents on missing
         revset = unfi.set('%ln and parents(roots(%ln))',
                          self.outgoing.commonheads,
                          self.outgoing.missing)
         cheads.extend(c.node() for c in revset)
         return cheads
 
     @property
     def commonheads(self):
         """set of all common heads after changeset bundle push"""
         if self.cgresult:
             return self.futureheads
         else:
             return self.fallbackheads
 
 # mapping of message used when pushing bookmark
 bookmsgmap = {'update': (_("updating bookmark %s\n"),
                          _('updating bookmark %s failed!\n')),
               'export': (_("exporting bookmark %s\n"),
                          _('exporting bookmark %s failed!\n')),
               'delete': (_("deleting remote bookmark %s\n"),
                          _('deleting remote bookmark %s failed!\n')),
               }
 
 
 def push(repo, remote, force=False, revs=None, newbranch=False, bookmarks=(),
          opargs=None):
     '''Push outgoing changesets (limited by revs) from a local
     repository to remote. Return an integer:
       - None means nothing to push
       - 0 means HTTP error
       - 1 means we pushed and remote head count is unchanged *or*
         we have outgoing changesets but refused to push
       - other values as described by addchangegroup()
     '''
     if opargs is None:
         opargs = {}
     pushop = pushoperation(repo, remote, force, revs, newbranch, bookmarks,
                            **opargs)
     if pushop.remote.local():
         missing = (set(pushop.repo.requirements)
                    - pushop.remote.local().supported)
         if missing:
             msg = _("required features are not"
                     " supported in the destination:"
                     " %s") % (', '.join(sorted(missing)))
             raise error.Abort(msg)
 
     # there are two ways to push to remote repo:
     #
     # addchangegroup assumes local user can lock remote
     # repo (local filesystem, old ssh servers).
     #
     # unbundle assumes local user cannot lock remote repo (new ssh
     # servers, http servers).
 
     if not pushop.remote.canpush():
         raise error.Abort(_("destination does not support push"))
     # get local lock as we might write phase data
     localwlock = locallock = None
     try:
         # bundle2 push may receive a reply bundle touching bookmarks or other
         # things requiring the wlock. Take it now to ensure proper ordering.
         maypushback = pushop.ui.configbool('experimental', 'bundle2.pushback')
         if (not _forcebundle1(pushop)) and maypushback:
             localwlock = pushop.repo.wlock()
         locallock = pushop.repo.lock()
         pushop.locallocked = True
     except IOError as err:
         pushop.locallocked = False
         if err.errno != errno.EACCES:
             raise
         # source repo cannot be locked.
         # We do not abort the push, but just disable the local phase
         # synchronisation.
         msg = 'cannot lock source repository: %s\n' % err
         pushop.ui.debug(msg)
     try:
         if pushop.locallocked:
             pushop.trmanager = transactionmanager(pushop.repo,
                                                   'push-response',
                                                   pushop.remote.url())
         pushop.repo.checkpush(pushop)
         lock = None
         unbundle = pushop.remote.capable('unbundle')
         if not unbundle:
             lock = pushop.remote.lock()
         try:
             _pushdiscovery(pushop)
             if not _forcebundle1(pushop):
                 _pushbundle2(pushop)
             _pushchangeset(pushop)
             _pushsyncphase(pushop)
             _pushobsolete(pushop)
             _pushbookmark(pushop)
         finally:
             if lock is not None:
                 lock.release()
         if pushop.trmanager:
             pushop.trmanager.close()
     finally:
         if pushop.trmanager:
             pushop.trmanager.release()
         if locallock is not None:
             locallock.release()
         if localwlock is not None:
             localwlock.release()
 
     return pushop
 
 # list of steps to perform discovery before push
 pushdiscoveryorder = []
 
 # Mapping between step name and function
 #
 # This exists to help extensions wrap steps if necessary
 pushdiscoverymapping = {}
 
 def pushdiscovery(stepname):
     """decorator for function performing discovery before push
 
     The function is added to the step -> function mapping and appended to the
     list of steps.  Beware that decorated function will be added in order (this
     may matter).
 
     You can only use this decorator for a new step, if you want to wrap a step
     from an extension, change the pushdiscovery dictionary directly."""
     def dec(func):
         assert stepname not in pushdiscoverymapping
         pushdiscoverymapping[stepname] = func
         pushdiscoveryorder.append(stepname)
         return func
     return dec
 
 def _pushdiscovery(pushop):
     """Run all discovery steps"""
     for stepname in pushdiscoveryorder:
         step = pushdiscoverymapping[stepname]
         step(pushop)
 
 @pushdiscovery('changeset')
 def _pushdiscoverychangeset(pushop):
     """discover the changeset that need to be pushed"""
     fci = discovery.findcommonincoming
     commoninc = fci(pushop.repo, pushop.remote, force=pushop.force)
     common, inc, remoteheads = commoninc
     fco = discovery.findcommonoutgoing
     outgoing = fco(pushop.repo, pushop.remote, onlyheads=pushop.revs,
                    commoninc=commoninc, force=pushop.force)
     pushop.outgoing = outgoing
     pushop.remoteheads = remoteheads
     pushop.incoming = inc
 
 @pushdiscovery('phase')
 def _pushdiscoveryphase(pushop):
     """discover the phase that needs to be pushed
 
     (computed for both success and failure case for changesets push)"""
     outgoing = pushop.outgoing
     unfi = pushop.repo.unfiltered()
     remotephases = pushop.remote.listkeys('phases')
     publishing = remotephases.get('publishing', False)
     if (pushop.ui.configbool('ui', '_usedassubrepo')
         and remotephases    # server supports phases
         and not pushop.outgoing.missing # no changesets to be pushed
         and publishing):
         # When:
         # - this is a subrepo push
         # - and remote support phase
         # - and no changeset are to be pushed
         # - and remote is publishing
         # We may be in issue 3871 case!
         # We drop the possible phase synchronisation done by
         # courtesy to publish changesets possibly locally draft
         # on the remote.
         remotephases = {'publishing': 'True'}
     ana = phases.analyzeremotephases(pushop.repo,
                                      pushop.fallbackheads,
                                      remotephases)
     pheads, droots = ana
     extracond = ''
     if not publishing:
         extracond = ' and public()'
     revset = 'heads((%%ln::%%ln) %s)' % extracond
     # Get the list of all revs draft on remote by public here.
     # XXX Beware that revset break if droots is not strictly
     # XXX root we may want to ensure it is but it is costly
     fallback = list(unfi.set(revset, droots, pushop.fallbackheads))
     if not outgoing.missing:
         future = fallback
     else:
         # adds changeset we are going to push as draft
         #
         # should not be necessary for publishing server, but because of an
         # issue fixed in xxxxx we have to do it anyway.
         fdroots = list(unfi.set('roots(%ln  + %ln::)',
                        outgoing.missing, droots))
         fdroots = [f.node() for f in fdroots]
         future = list(unfi.set(revset, fdroots, pushop.futureheads))
     pushop.outdatedphases = future
     pushop.fallbackoutdatedphases = fallback
 
 @pushdiscovery('obsmarker')
 def _pushdiscoveryobsmarkers(pushop):
     if (obsolete.isenabled(pushop.repo, obsolete.exchangeopt)
         and pushop.repo.obsstore
         and 'obsolete' in pushop.remote.listkeys('namespaces')):
         repo = pushop.repo
         # very naive computation, that can be quite expensive on big repo.
         # However: evolution is currently slow on them anyway.
         nodes = (c.node() for c in repo.set('::%ln', pushop.futureheads))
         pushop.outobsmarkers = pushop.repo.obsstore.relevantmarkers(nodes)
 
 @pushdiscovery('bookmarks')
 def _pushdiscoverybookmarks(pushop):
     ui = pushop.ui
     repo = pushop.repo.unfiltered()
     remote = pushop.remote
     ui.debug("checking for updated bookmarks\n")
     ancestors = ()
     if pushop.revs:
         revnums = map(repo.changelog.rev, pushop.revs)
         ancestors = repo.changelog.ancestors(revnums, inclusive=True)
     remotebookmark = remote.listkeys('bookmarks')
 
     explicit = set([repo._bookmarks.expandname(bookmark)
                     for bookmark in pushop.bookmarks])
 
     remotebookmark = bookmod.unhexlifybookmarks(remotebookmark)
     comp = bookmod.comparebookmarks(repo, repo._bookmarks, remotebookmark)
 
     def safehex(x):
         if x is None:
             return x
         return hex(x)
 
     def hexifycompbookmarks(bookmarks):
         for b, scid, dcid in bookmarks:
             yield b, safehex(scid), safehex(dcid)
 
     comp = [hexifycompbookmarks(marks) for marks in comp]
     addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same = comp
 
     for b, scid, dcid in advsrc:
         if b in explicit:
             explicit.remove(b)
         if not ancestors or repo[scid].rev() in ancestors:
             pushop.outbookmarks.append((b, dcid, scid))
     # search added bookmark
     for b, scid, dcid in addsrc:
         if b in explicit:
             explicit.remove(b)
             pushop.outbookmarks.append((b, '', scid))
     # search for overwritten bookmark
     for b, scid, dcid in list(advdst) + list(diverge) + list(differ):
         if b in explicit:
             explicit.remove(b)
             pushop.outbookmarks.append((b, dcid, scid))
     # search for bookmark to delete
     for b, scid, dcid in adddst:
         if b in explicit:
             explicit.remove(b)
             # treat as "deleted locally"
             pushop.outbookmarks.append((b, dcid, ''))
     # identical bookmarks shouldn't get reported
     for b, scid, dcid in same:
         if b in explicit:
             explicit.remove(b)
 
     if explicit:
         explicit = sorted(explicit)
         # we should probably list all of them
         ui.warn(_('bookmark %s does not exist on the local '
                   'or remote repository!\n') % explicit[0])
         pushop.bkresult = 2
 
     pushop.outbookmarks.sort()
 
 def _pushcheckoutgoing(pushop):
     outgoing = pushop.outgoing
     unfi = pushop.repo.unfiltered()
     if not outgoing.missing:
         # nothing to push
         scmutil.nochangesfound(unfi.ui, unfi, outgoing.excluded)
         return False
     # something to push
     if not pushop.force:
         # if repo.obsstore == False --> no obsolete
         # then, save the iteration
         if unfi.obsstore:
             # this message are here for 80 char limit reason
             mso = _("push includes obsolete changeset: %s!")
+            mscd = _("push includes content-divergent changeset: %s!")
             mst = {"orphan": _("push includes orphan changeset: %s!"),
                    "bumped": _("push includes bumped changeset: %s!"),
-                   "divergent": _("push includes divergent changeset: %s!")}
+                   "content-divergent": mscd}
             # If we are to push if there is at least one
             # obsolete or unstable changeset in missing, at
             # least one of the missinghead will be obsolete or
             # unstable. So checking heads only is ok
             for node in outgoing.missingheads:
                 ctx = unfi[node]
                 if ctx.obsolete():
                     raise error.Abort(mso % ctx)
                 elif ctx.troubled():
                     raise error.Abort(mst[ctx.troubles()[0]] % ctx)
 
         discovery.checkheads(pushop)
     return True
 
 # List of names of steps to perform for an outgoing bundle2, order matters.
 b2partsgenorder = []
 
 # Mapping between step name and function
 #
 # This exists to help extensions wrap steps if necessary
 b2partsgenmapping = {}
 
 def b2partsgenerator(stepname, idx=None):
     """decorator for function generating bundle2 part
 
     The function is added to the step -> function mapping and appended to the
     list of steps.  Beware that decorated functions will be added in order
     (this may matter).
 
     You can only use this decorator for new steps, if you want to wrap a step
     from an extension, attack the b2partsgenmapping dictionary directly."""
     def dec(func):
         assert stepname not in b2partsgenmapping
         b2partsgenmapping[stepname] = func
         if idx is None:
             b2partsgenorder.append(stepname)
         else:
             b2partsgenorder.insert(idx, stepname)
         return func
     return dec
 
 def _pushb2ctxcheckheads(pushop, bundler):
     """Generate race condition checking parts
 
     Exists as an independent function to aid extensions
     """
     # * 'force' do not check for push race,
     # * if we don't push anything, there are nothing to check.
     if not pushop.force and pushop.outgoing.missingheads:
         allowunrelated = 'related' in bundler.capabilities.get('checkheads', ())
         emptyremote = pushop.pushbranchmap is None
         if not allowunrelated or emptyremote:
             bundler.newpart('check:heads', data=iter(pushop.remoteheads))
         else:
             affected = set()
             for branch, heads in pushop.pushbranchmap.iteritems():
                 remoteheads, newheads, unsyncedheads, discardedheads = heads
                 if remoteheads is not None:
                     remote = set(remoteheads)
                     affected |= set(discardedheads) & remote
                     affected |= remote - set(newheads)
             if affected:
                 data = iter(sorted(affected))
                 bundler.newpart('check:updated-heads', data=data)
 
 @b2partsgenerator('changeset')
 def _pushb2ctx(pushop, bundler):
     """handle changegroup push through bundle2
 
     addchangegroup result is stored in the ``pushop.cgresult`` attribute.
     """
     if 'changesets' in pushop.stepsdone:
         return
     pushop.stepsdone.add('changesets')
     # Send known heads to the server for race detection.
     if not _pushcheckoutgoing(pushop):
         return
     pushop.repo.prepushoutgoinghooks(pushop)
 
     _pushb2ctxcheckheads(pushop, bundler)
 
     b2caps = bundle2.bundle2caps(pushop.remote)
     version = '01'
     cgversions = b2caps.get('changegroup')
     if cgversions:  # 3.1 and 3.2 ship with an empty value
         cgversions = [v for v in cgversions
                       if v in changegroup.supportedoutgoingversions(
                           pushop.repo)]
         if not cgversions:
             raise ValueError(_('no common changegroup version'))
         version = max(cgversions)
     cg = changegroup.getlocalchangegroupraw(pushop.repo, 'push',
                                             pushop.outgoing,
                                             version=version)
     cgpart = bundler.newpart('changegroup', data=cg)
     if cgversions:
         cgpart.addparam('version', version)
     if 'treemanifest' in pushop.repo.requirements:
         cgpart.addparam('treemanifest', '1')
     def handlereply(op):
         """extract addchangegroup returns from server reply"""
         cgreplies = op.records.getreplies(cgpart.id)
         assert len(cgreplies['changegroup']) == 1
         pushop.cgresult = cgreplies['changegroup'][0]['return']
     return handlereply
 
 @b2partsgenerator('phase')
 def _pushb2phases(pushop, bundler):
     """handle phase push through bundle2"""
     if 'phases' in pushop.stepsdone:
         return
     b2caps = bundle2.bundle2caps(pushop.remote)
     if not 'pushkey' in b2caps:
         return
     pushop.stepsdone.add('phases')
     part2node = []
 
     def handlefailure(pushop, exc):
         targetid = int(exc.partid)
         for partid, node in part2node:
             if partid == targetid:
                 raise error.Abort(_('updating %s to public failed') % node)
 
     enc = pushkey.encode
     for newremotehead in pushop.outdatedphases:
         part = bundler.newpart('pushkey')
         part.addparam('namespace', enc('phases'))
         part.addparam('key', enc(newremotehead.hex()))
         part.addparam('old', enc(str(phases.draft)))
         part.addparam('new', enc(str(phases.public)))
         part2node.append((part.id, newremotehead))
         pushop.pkfailcb[part.id] = handlefailure
 
     def handlereply(op):
         for partid, node in part2node:
             partrep = op.records.getreplies(partid)
             results = partrep['pushkey']
             assert len(results) <= 1
             msg = None
             if not results:
                 msg = _('server ignored update of %s to public!\n') % node
             elif not int(results[0]['return']):
                 msg = _('updating %s to public failed!\n') % node
             if msg is not None:
                 pushop.ui.warn(msg)
     return handlereply
 
 @b2partsgenerator('obsmarkers')
 def _pushb2obsmarkers(pushop, bundler):
     if 'obsmarkers' in pushop.stepsdone:
         return
     remoteversions = bundle2.obsmarkersversion(bundler.capabilities)
     if obsolete.commonversion(remoteversions) is None:
         return
     pushop.stepsdone.add('obsmarkers')
     if pushop.outobsmarkers:
         markers = sorted(pushop.outobsmarkers)
         bundle2.buildobsmarkerspart(bundler, markers)
 
 @b2partsgenerator('bookmarks')
 def _pushb2bookmarks(pushop, bundler):
     """handle bookmark push through bundle2"""
     if 'bookmarks' in pushop.stepsdone:
         return
     b2caps = bundle2.bundle2caps(pushop.remote)
     if 'pushkey' not in b2caps:
         return
     pushop.stepsdone.add('bookmarks')
     part2book = []
     enc = pushkey.encode
 
     def handlefailure(pushop, exc):
         targetid = int(exc.partid)
         for partid, book, action in part2book:
             if partid == targetid:
                 raise error.Abort(bookmsgmap[action][1].rstrip() % book)
         # we should not be called for part we did not generated
         assert False
 
     for book, old, new in pushop.outbookmarks:
         part = bundler.newpart('pushkey')
         part.addparam('namespace', enc('bookmarks'))
         part.addparam('key', enc(book))
         part.addparam('old', enc(old))
         part.addparam('new', enc(new))
         action = 'update'
         if not old:
             action = 'export'
         elif not new:
             action = 'delete'
         part2book.append((part.id, book, action))
         pushop.pkfailcb[part.id] = handlefailure
 
     def handlereply(op):
         ui = pushop.ui
         for partid, book, action in part2book:
             partrep = op.records.getreplies(partid)
             results = partrep['pushkey']
             assert len(results) <= 1
             if not results:
                 pushop.ui.warn(_('server ignored bookmark %s update\n') % book)
             else:
                 ret = int(results[0]['return'])
                 if ret:
                     ui.status(bookmsgmap[action][0] % book)
                 else:
                     ui.warn(bookmsgmap[action][1] % book)
                     if pushop.bkresult is not None:
                         pushop.bkresult = 1
     return handlereply
 
 
 def _pushbundle2(pushop):
     """push data to the remote using bundle2
 
     The only currently supported type of data is changegroup but this will
     evolve in the future."""
     bundler = bundle2.bundle20(pushop.ui, bundle2.bundle2caps(pushop.remote))
     pushback = (pushop.trmanager
                 and pushop.ui.configbool('experimental', 'bundle2.pushback'))
 
     # create reply capability
     capsblob = bundle2.encodecaps(bundle2.getrepocaps(pushop.repo,
                                                       allowpushback=pushback))
     bundler.newpart('replycaps', data=capsblob)
     replyhandlers = []
     for partgenname in b2partsgenorder:
         partgen = b2partsgenmapping[partgenname]
         ret = partgen(pushop, bundler)
         if callable(ret):
             replyhandlers.append(ret)
     # do not push if nothing to push
     if bundler.nbparts <= 1:
         return
     stream = util.chunkbuffer(bundler.getchunks())
     try:
         try:
             reply = pushop.remote.unbundle(
                 stream, ['force'], pushop.remote.url())
         except error.BundleValueError as exc:
             raise error.Abort(_('missing support for %s') % exc)
         try:
             trgetter = None
             if pushback:
                 trgetter = pushop.trmanager.transaction
             op = bundle2.processbundle(pushop.repo, reply, trgetter)
         except error.BundleValueError as exc:
             raise error.Abort(_('missing support for %s') % exc)
         except bundle2.AbortFromPart as exc:
             pushop.ui.status(_('remote: %s\n') % exc)
             if exc.hint is not None:
                 pushop.ui.status(_('remote: %s\n') % ('(%s)' % exc.hint))
             raise error.Abort(_('push failed on remote'))
     except error.PushkeyFailed as exc:
         partid = int(exc.partid)
         if partid not in pushop.pkfailcb:
             raise
         pushop.pkfailcb[partid](pushop, exc)
     for rephand in replyhandlers:
         rephand(op)
 
 def _pushchangeset(pushop):
     """Make the actual push of changeset bundle to remote repo"""
     if 'changesets' in pushop.stepsdone:
         return
     pushop.stepsdone.add('changesets')
     if not _pushcheckoutgoing(pushop):
         return
     pushop.repo.prepushoutgoinghooks(pushop)
     outgoing = pushop.outgoing
     unbundle = pushop.remote.capable('unbundle')
     # TODO: get bundlecaps from remote
     bundlecaps = None
     # create a changegroup from local
     if pushop.revs is None and not (outgoing.excluded
                             or pushop.repo.changelog.filteredrevs):
         # push everything,
         # use the fast path, no race possible on push
         bundler = changegroup.cg1packer(pushop.repo, bundlecaps)
         cg = changegroup.getsubset(pushop.repo,
                                    outgoing,
                                    bundler,
                                    'push',
                                    fastpath=True)
     else:
         cg = changegroup.getchangegroup(pushop.repo, 'push', outgoing,
                                         bundlecaps=bundlecaps)
 
     # apply changegroup to remote
     if unbundle:
         # local repo finds heads on server, finds out what
         # revs it must push. once revs transferred, if server
         # finds it has different heads (someone else won
         # commit/push race), server aborts.
         if pushop.force:
             remoteheads = ['force']
         else:
             remoteheads = pushop.remoteheads
         # ssh: return remote's addchangegroup()
         # http: return remote's addchangegroup() or 0 for error
         pushop.cgresult = pushop.remote.unbundle(cg, remoteheads,
                                             pushop.repo.url())
     else:
         # we return an integer indicating remote head count
         # change
         pushop.cgresult = pushop.remote.addchangegroup(cg, 'push',
                                                        pushop.repo.url())
 
 def _pushsyncphase(pushop):
     """synchronise phase information locally and remotely"""
     cheads = pushop.commonheads
     # even when we don't push, exchanging phase data is useful
     remotephases = pushop.remote.listkeys('phases')
     if (pushop.ui.configbool('ui', '_usedassubrepo')
         and remotephases    # server supports phases
         and pushop.cgresult is None # nothing was pushed
         and remotephases.get('publishing', False)):
         # When:
         # - this is a subrepo push
         # - and remote support phase
         # - and no changeset was pushed
         # - and remote is publishing
         # We may be in issue 3871 case!
         # We drop the possible phase synchronisation done by
         # courtesy to publish changesets possibly locally draft
         # on the remote.
         remotephases = {'publishing': 'True'}
     if not remotephases: # old server or public only reply from non-publishing
         _localphasemove(pushop, cheads)
         # don't push any phase data as there is nothing to push
     else:
         ana = phases.analyzeremotephases(pushop.repo, cheads,
                                          remotephases)
         pheads, droots = ana
         ### Apply remote phase on local
         if remotephases.get('publishing', False):
             _localphasemove(pushop, cheads)
         else: # publish = False
             _localphasemove(pushop, pheads)
             _localphasemove(pushop, cheads, phases.draft)
         ### Apply local phase on remote
 
         if pushop.cgresult:
             if 'phases' in pushop.stepsdone:
                 # phases already pushed though bundle2
                 return
             outdated = pushop.outdatedphases
         else:
             outdated = pushop.fallbackoutdatedphases
 
         pushop.stepsdone.add('phases')
 
         # filter heads already turned public by the push
         outdated = [c for c in outdated if c.node() not in pheads]
         # fallback to independent pushkey command
         for newremotehead in outdated:
             r = pushop.remote.pushkey('phases',
                                       newremotehead.hex(),
                                       str(phases.draft),
                                       str(phases.public))
             if not r:
                 pushop.ui.warn(_('updating %s to public failed!\n')
                                % newremotehead)
 
 def _localphasemove(pushop, nodes, phase=phases.public):
     """move <nodes> to <phase> in the local source repo"""
     if pushop.trmanager:
         phases.advanceboundary(pushop.repo,
                                pushop.trmanager.transaction(),
                                phase,
                                nodes)
     else:
         # repo is not locked, do not change any phases!
         # Informs the user that phases should have been moved when
         # applicable.
         actualmoves = [n for n in nodes if phase < pushop.repo[n].phase()]
         phasestr = phases.phasenames[phase]
         if actualmoves:
             pushop.ui.status(_('cannot lock source repo, skipping '
                                'local %s phase update\n') % phasestr)
 
 def _pushobsolete(pushop):
     """utility function to push obsolete markers to a remote"""
     if 'obsmarkers' in pushop.stepsdone:
         return
     repo = pushop.repo
     remote = pushop.remote
     pushop.stepsdone.add('obsmarkers')
     if pushop.outobsmarkers:
         pushop.ui.debug('try to push obsolete markers to remote\n')
         rslts = []
         remotedata = obsolete._pushkeyescape(sorted(pushop.outobsmarkers))
         for key in sorted(remotedata, reverse=True):
             # reverse sort to ensure we end with dump0
             data = remotedata[key]
             rslts.append(remote.pushkey('obsolete', key, '', data))
         if [r for r in rslts if not r]:
             msg = _('failed to push some obsolete markers!\n')
             repo.ui.warn(msg)
 
 def _pushbookmark(pushop):
     """Update bookmark position on remote"""
     if pushop.cgresult == 0 or 'bookmarks' in pushop.stepsdone:
         return
     pushop.stepsdone.add('bookmarks')
     ui = pushop.ui
     remote = pushop.remote
 
     for b, old, new in pushop.outbookmarks:
         action = 'update'
         if not old:
             action = 'export'
         elif not new:
             action = 'delete'
         if remote.pushkey('bookmarks', b, old, new):
             ui.status(bookmsgmap[action][0] % b)
         else:
             ui.warn(bookmsgmap[action][1] % b)
             # discovery can have set the value form invalid entry
             if pushop.bkresult is not None:
                 pushop.bkresult = 1
 
 class pulloperation(object):
     """A object that represent a single pull operation
 
     It purpose is to carry pull related state and very common operation.
 
     A new should be created at the beginning of each pull and discarded
     afterward.
     """
 
     def __init__(self, repo, remote, heads=None, force=False, bookmarks=(),
                  remotebookmarks=None, streamclonerequested=None):
         # repo we pull into
         self.repo = repo
         # repo we pull from
         self.remote = remote
         # revision we try to pull (None is "all")
         self.heads = heads
         # bookmark pulled explicitly
         self.explicitbookmarks = [repo._bookmarks.expandname(bookmark)
                                   for bookmark in bookmarks]
         # do we force pull?
         self.force = force
         # whether a streaming clone was requested
         self.streamclonerequested = streamclonerequested
         # transaction manager
         self.trmanager = None
         # set of common changeset between local and remote before pull
         self.common = None
         # set of pulled head
         self.rheads = None
         # list of missing changeset to fetch remotely
         self.fetch = None
         # remote bookmarks data
         self.remotebookmarks = remotebookmarks
         # result of changegroup pulling (used as return code by pull)
         self.cgresult = None
         # list of step already done
         self.stepsdone = set()
         # Whether we attempted a clone from pre-generated bundles.
         self.clonebundleattempted = False
 
     @util.propertycache
     def pulledsubset(self):
         """heads of the set of changeset target by the pull"""
         # compute target subset
         if self.heads is None:
             # We pulled every thing possible
             # sync on everything common
             c = set(self.common)
             ret = list(self.common)
             for n in self.rheads:
                 if n not in c:
                     ret.append(n)
             return ret
         else:
             # We pulled a specific subset
             # sync on this subset
             return self.heads
 
     @util.propertycache
     def canusebundle2(self):
         return not _forcebundle1(self)
 
     @util.propertycache
     def remotebundle2caps(self):
         return bundle2.bundle2caps(self.remote)
 
     def gettransaction(self):
         # deprecated; talk to trmanager directly
         return self.trmanager.transaction()
 
 class transactionmanager(object):
     """An object to manage the life cycle of a transaction
 
     It creates the transaction on demand and calls the appropriate hooks when
     closing the transaction."""
     def __init__(self, repo, source, url):
         self.repo = repo
         self.source = source
         self.url = url
         self._tr = None
 
     def transaction(self):
         """Return an open transaction object, constructing if necessary"""
         if not self._tr:
             trname = '%s\n%s' % (self.source, util.hidepassword(self.url))
             self._tr = self.repo.transaction(trname)
             self._tr.hookargs['source'] = self.source
             self._tr.hookargs['url'] = self.url
         return self._tr
 
     def close(self):
         """close transaction if created"""
         if self._tr is not None:
             self._tr.close()
 
     def release(self):
         """release transaction if created"""
         if self._tr is not None:
             self._tr.release()
 
 def pull(repo, remote, heads=None, force=False, bookmarks=(), opargs=None,
          streamclonerequested=None):
     """Fetch repository data from a remote.
 
     This is the main function used to retrieve data from a remote repository.
 
     ``repo`` is the local repository to clone into.
     ``remote`` is a peer instance.
     ``heads`` is an iterable of revisions we want to pull. ``None`` (the
     default) means to pull everything from the remote.
     ``bookmarks`` is an iterable of bookmarks requesting to be pulled. By
     default, all remote bookmarks are pulled.
     ``opargs`` are additional keyword arguments to pass to ``pulloperation``
     initialization.
     ``streamclonerequested`` is a boolean indicating whether a "streaming
     clone" is requested. A "streaming clone" is essentially a raw file copy
     of revlogs from the server. This only works when the local repository is
     empty. The default value of ``None`` means to respect the server
     configuration for preferring stream clones.
 
     Returns the ``pulloperation`` created for this pull.
     """
     if opargs is None:
         opargs = {}
     pullop = pulloperation(repo, remote, heads, force, bookmarks=bookmarks,
                            streamclonerequested=streamclonerequested, **opargs)
     if pullop.remote.local():
         missing = set(pullop.remote.requirements) - pullop.repo.supported
         if missing:
             msg = _("required features are not"
                     " supported in the destination:"
                     " %s") % (', '.join(sorted(missing)))
             raise error.Abort(msg)
 
     wlock = lock = None
     try:
         wlock = pullop.repo.wlock()
         lock = pullop.repo.lock()
         pullop.trmanager = transactionmanager(repo, 'pull', remote.url())
         streamclone.maybeperformlegacystreamclone(pullop)
         # This should ideally be in _pullbundle2(). However, it needs to run
         # before discovery to avoid extra work.
         _maybeapplyclonebundle(pullop)
         _pulldiscovery(pullop)
         if pullop.canusebundle2:
             _pullbundle2(pullop)
         _pullchangeset(pullop)
         _pullphase(pullop)
         _pullbookmarks(pullop)
         _pullobsolete(pullop)
         pullop.trmanager.close()
     finally:
         lockmod.release(pullop.trmanager, lock, wlock)
 
     return pullop
 
 # list of steps to perform discovery before pull
 pulldiscoveryorder = []
 
 # Mapping between step name and function
 #
 # This exists to help extensions wrap steps if necessary
 pulldiscoverymapping = {}
 
 def pulldiscovery(stepname):
     """decorator for function performing discovery before pull
 
     The function is added to the step -> function mapping and appended to the
     list of steps.  Beware that decorated function will be added in order (this
     may matter).
 
     You can only use this decorator for a new step, if you want to wrap a step
     from an extension, change the pulldiscovery dictionary directly."""
     def dec(func):
         assert stepname not in pulldiscoverymapping
         pulldiscoverymapping[stepname] = func
         pulldiscoveryorder.append(stepname)
         return func
     return dec
 
 def _pulldiscovery(pullop):
     """Run all discovery steps"""
     for stepname in pulldiscoveryorder:
         step = pulldiscoverymapping[stepname]
         step(pullop)
 
 @pulldiscovery('b1:bookmarks')
 def _pullbookmarkbundle1(pullop):
     """fetch bookmark data in bundle1 case
 
     If not using bundle2, we have to fetch bookmarks before changeset
     discovery to reduce the chance and impact of race conditions."""
     if pullop.remotebookmarks is not None:
         return
     if pullop.canusebundle2 and 'listkeys' in pullop.remotebundle2caps:
         # all known bundle2 servers now support listkeys, but lets be nice with
         # new implementation.
         return
     pullop.remotebookmarks = pullop.remote.listkeys('bookmarks')
 
 
 @pulldiscovery('changegroup')
 def _pulldiscoverychangegroup(pullop):
     """discovery phase for the pull
 
     Current handle changeset discovery only, will change handle all discovery
     at some point."""
     tmp = discovery.findcommonincoming(pullop.repo,
                                        pullop.remote,
                                        heads=pullop.heads,
                                        force=pullop.force)
     common, fetch, rheads = tmp
     nm = pullop.repo.unfiltered().changelog.nodemap
     if fetch and rheads:
         # If a remote heads in filtered locally, lets drop it from the unknown
         # remote heads and put in back in common.
         #
         # This is a hackish solution to catch most of "common but locally
         # hidden situation".  We do not performs discovery on unfiltered
         # repository because it end up doing a pathological amount of round
         # trip for w huge amount of changeset we do not care about.
         #
         # If a set of such "common but filtered" changeset exist on the server
         # but are not including a remote heads, we'll not be able to detect it,
         scommon = set(common)
         filteredrheads = []
         for n in rheads:
             if n in nm:
                 if n not in scommon:
                     common.append(n)
             else:
                 filteredrheads.append(n)
         if not filteredrheads:
             fetch = []
         rheads = filteredrheads
     pullop.common = common
     pullop.fetch = fetch
     pullop.rheads = rheads
 
 def _pullbundle2(pullop):
     """pull data using bundle2
 
     For now, the only supported data are changegroup."""
     kwargs = {'bundlecaps': caps20to10(pullop.repo)}
 
     # At the moment we don't do stream clones over bundle2. If that is
     # implemented then here's where the check for that will go.
     streaming = False
 
     # pulling changegroup
     pullop.stepsdone.add('changegroup')
 
     kwargs['common'] = pullop.common
     kwargs['heads'] = pullop.heads or pullop.rheads
     kwargs['cg'] = pullop.fetch
     if 'listkeys' in pullop.remotebundle2caps:
         kwargs['listkeys'] = ['phases']
         if pullop.remotebookmarks is None:
             # make sure to always includes bookmark data when migrating
             # `hg incoming --bundle` to using this function.
             kwargs['listkeys'].append('bookmarks')
 
     # If this is a full pull / clone and the server supports the clone bundles
     # feature, tell the server whether we attempted a clone bundle. The
     # presence of this flag indicates the client supports clone bundles. This
     # will enable the server to treat clients that support clone bundles
     # differently from those that don't.
     if (pullop.remote.capable('clonebundles')
         and pullop.heads is None and list(pullop.common) == [nullid]):
         kwargs['cbattempted'] = pullop.clonebundleattempted
 
     if streaming:
         pullop.repo.ui.status(_('streaming all changes\n'))
     elif not pullop.fetch:
         pullop.repo.ui.status(_("no changes found\n"))
         pullop.cgresult = 0
     else:
         if pullop.heads is None and list(pullop.common) == [nullid]:
             pullop.repo.ui.status(_("requesting all changes\n"))
     if obsolete.isenabled(pullop.repo, obsolete.exchangeopt):
         remoteversions = bundle2.obsmarkersversion(pullop.remotebundle2caps)
         if obsolete.commonversion(remoteversions) is not None:
             kwargs['obsmarkers'] = True
             pullop.stepsdone.add('obsmarkers')
     _pullbundle2extraprepare(pullop, kwargs)
     bundle = pullop.remote.getbundle('pull', **pycompat.strkwargs(kwargs))
     try:
         op = bundle2.processbundle(pullop.repo, bundle, pullop.gettransaction)
     except bundle2.AbortFromPart as exc:
         pullop.repo.ui.status(_('remote: abort: %s\n') % exc)
         raise error.Abort(_('pull failed on remote'), hint=exc.hint)
     except error.BundleValueError as exc:
         raise error.Abort(_('missing support for %s') % exc)
 
     if pullop.fetch:
         pullop.cgresult = bundle2.combinechangegroupresults(op)
 
     # processing phases change
     for namespace, value in op.records['listkeys']:
         if namespace == 'phases':
             _pullapplyphases(pullop, value)
 
     # processing bookmark update
     for namespace, value in op.records['listkeys']:
         if namespace == 'bookmarks':
             pullop.remotebookmarks = value
 
     # bookmark data were either already there or pulled in the bundle
     if pullop.remotebookmarks is not None:
         _pullbookmarks(pullop)
 
 def _pullbundle2extraprepare(pullop, kwargs):
     """hook function so that extensions can extend the getbundle call"""
     pass
 
 def _pullchangeset(pullop):
     """pull changeset from unbundle into the local repo"""
     # We delay the open of the transaction as late as possible so we
     # don't open transaction for nothing or you break future useful
     # rollback call
     if 'changegroup' in pullop.stepsdone:
         return
     pullop.stepsdone.add('changegroup')
     if not pullop.fetch:
         pullop.repo.ui.status(_("no changes found\n"))
         pullop.cgresult = 0
         return
     tr = pullop.gettransaction()
     if pullop.heads is None and list(pullop.common) == [nullid]:
         pullop.repo.ui.status(_("requesting all changes\n"))
     elif pullop.heads is None and pullop.remote.capable('changegroupsubset'):
         # issue1320, avoid a race if remote changed after discovery
         pullop.heads = pullop.rheads
 
     if pullop.remote.capable('getbundle'):
         # TODO: get bundlecaps from remote
         cg = pullop.remote.getbundle('pull', common=pullop.common,
                                      heads=pullop.heads or pullop.rheads)
     elif pullop.heads is None:
         cg = pullop.remote.changegroup(pullop.fetch, 'pull')
     elif not pullop.remote.capable('changegroupsubset'):
         raise error.Abort(_("partial pull cannot be done because "
                            "other repository doesn't support "
                            "changegroupsubset."))
     else:
         cg = pullop.remote.changegroupsubset(pullop.fetch, pullop.heads, 'pull')
     bundleop = bundle2.applybundle(pullop.repo, cg, tr, 'pull',
                                    pullop.remote.url())
     pullop.cgresult = bundle2.combinechangegroupresults(bundleop)
 
 def _pullphase(pullop):
     # Get remote phases data from remote
     if 'phases' in pullop.stepsdone:
         return
     remotephases = pullop.remote.listkeys('phases')
     _pullapplyphases(pullop, remotephases)
 
 def _pullapplyphases(pullop, remotephases):
     """apply phase movement from observed remote state"""
     if 'phases' in pullop.stepsdone:
         return
     pullop.stepsdone.add('phases')
     publishing = bool(remotephases.get('publishing', False))
     if remotephases and not publishing:
         # remote is new and non-publishing
         pheads, _dr = phases.analyzeremotephases(pullop.repo,
                                                  pullop.pulledsubset,
                                                  remotephases)
         dheads = pullop.pulledsubset
     else:
         # Remote is old or publishing all common changesets
         # should be seen as public
         pheads = pullop.pulledsubset
         dheads = []
     unfi = pullop.repo.unfiltered()
     phase = unfi._phasecache.phase
     rev = unfi.changelog.nodemap.get
     public = phases.public
     draft = phases.draft
 
     # exclude changesets already public locally and update the others
     pheads = [pn for pn in pheads if phase(unfi, rev(pn)) > public]
     if pheads:
         tr = pullop.gettransaction()
         phases.advanceboundary(pullop.repo, tr, public, pheads)
 
     # exclude changesets already draft locally and update the others
     dheads = [pn for pn in dheads if phase(unfi, rev(pn)) > draft]
     if dheads:
         tr = pullop.gettransaction()
         phases.advanceboundary(pullop.repo, tr, draft, dheads)
 
 def _pullbookmarks(pullop):
     """process the remote bookmark information to update the local one"""
     if 'bookmarks' in pullop.stepsdone:
         return
     pullop.stepsdone.add('bookmarks')
     repo = pullop.repo
     remotebookmarks = pullop.remotebookmarks
     remotebookmarks = bookmod.unhexlifybookmarks(remotebookmarks)
     bookmod.updatefromremote(repo.ui, repo, remotebookmarks,
                              pullop.remote.url(),
                              pullop.gettransaction,
                              explicit=pullop.explicitbookmarks)
 
 def _pullobsolete(pullop):
     """utility function to pull obsolete markers from a remote
 
     The `gettransaction` is function that return the pull transaction, creating
     one if necessary. We return the transaction to inform the calling code that
     a new transaction have been created (when applicable).
 
     Exists mostly to allow overriding for experimentation purpose"""
     if 'obsmarkers' in pullop.stepsdone:
         return
     pullop.stepsdone.add('obsmarkers')
     tr = None
     if obsolete.isenabled(pullop.repo, obsolete.exchangeopt):
         pullop.repo.ui.debug('fetching remote obsolete markers\n')
         remoteobs = pullop.remote.listkeys('obsolete')
         if 'dump0' in remoteobs:
             tr = pullop.gettransaction()
             markers = []
             for key in sorted(remoteobs, reverse=True):
                 if key.startswith('dump'):
                     data = util.b85decode(remoteobs[key])
                     version, newmarks = obsolete._readmarkers(data)
                     markers += newmarks
             if markers:
                 pullop.repo.obsstore.add(tr, markers)
             pullop.repo.invalidatevolatilesets()
     return tr
 
 def caps20to10(repo):
     """return a set with appropriate options to use bundle20 during getbundle"""
     caps = {'HG20'}
     capsblob = bundle2.encodecaps(bundle2.getrepocaps(repo))
     caps.add('bundle2=' + urlreq.quote(capsblob))
     return caps
 
 # List of names of steps to perform for a bundle2 for getbundle, order matters.
 getbundle2partsorder = []
 
 # Mapping between step name and function
 #
 # This exists to help extensions wrap steps if necessary
 getbundle2partsmapping = {}
 
 def getbundle2partsgenerator(stepname, idx=None):
     """decorator for function generating bundle2 part for getbundle
 
     The function is added to the step -> function mapping and appended to the
     list of steps.  Beware that decorated functions will be added in order
     (this may matter).
 
     You can only use this decorator for new steps, if you want to wrap a step
     from an extension, attack the getbundle2partsmapping dictionary directly."""
     def dec(func):
         assert stepname not in getbundle2partsmapping
         getbundle2partsmapping[stepname] = func
         if idx is None:
             getbundle2partsorder.append(stepname)
         else:
             getbundle2partsorder.insert(idx, stepname)
         return func
     return dec
 
 def bundle2requested(bundlecaps):
     if bundlecaps is not None:
         return any(cap.startswith('HG2') for cap in bundlecaps)
     return False
 
 def getbundlechunks(repo, source, heads=None, common=None, bundlecaps=None,
                     **kwargs):
     """Return chunks constituting a bundle's raw data.
 
     Could be a bundle HG10 or a bundle HG20 depending on bundlecaps
     passed.
 
     Returns an iterator over raw chunks (of varying sizes).
     """
     kwargs = pycompat.byteskwargs(kwargs)
     usebundle2 = bundle2requested(bundlecaps)
     # bundle10 case
     if not usebundle2:
         if bundlecaps and not kwargs.get('cg', True):
             raise ValueError(_('request for bundle10 must include changegroup'))
 
         if kwargs:
             raise ValueError(_('unsupported getbundle arguments: %s')
                              % ', '.join(sorted(kwargs.keys())))
         outgoing = _computeoutgoing(repo, heads, common)
         bundler = changegroup.getbundler('01', repo, bundlecaps)
         return changegroup.getsubsetraw(repo, outgoing, bundler, source)
 
     # bundle20 case
     b2caps = {}
     for bcaps in bundlecaps:
         if bcaps.startswith('bundle2='):
             blob = urlreq.unquote(bcaps[len('bundle2='):])
             b2caps.update(bundle2.decodecaps(blob))
     bundler = bundle2.bundle20(repo.ui, b2caps)
 
     kwargs['heads'] = heads
     kwargs['common'] = common
 
     for name in getbundle2partsorder:
         func = getbundle2partsmapping[name]
         func(bundler, repo, source, bundlecaps=bundlecaps, b2caps=b2caps,
              **pycompat.strkwargs(kwargs))
 
     return bundler.getchunks()
 
 @getbundle2partsgenerator('changegroup')
 def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None,
                               b2caps=None, heads=None, common=None, **kwargs):
     """add a changegroup part to the requested bundle"""
     cg = None
     if kwargs.get('cg', True):
         # build changegroup bundle here.
         version = '01'
         cgversions = b2caps.get('changegroup')
         if cgversions:  # 3.1 and 3.2 ship with an empty value
             cgversions = [v for v in cgversions
                           if v in changegroup.supportedoutgoingversions(repo)]
             if not cgversions:
                 raise ValueError(_('no common changegroup version'))
             version = max(cgversions)
         outgoing = _computeoutgoing(repo, heads, common)
         cg = changegroup.getlocalchangegroupraw(repo, source, outgoing,
                                                 bundlecaps=bundlecaps,
                                                 version=version)
 
     if cg:
         part = bundler.newpart('changegroup', data=cg)
         if cgversions:
             part.addparam('version', version)
         part.addparam('nbchanges', str(len(outgoing.missing)), mandatory=False)
         if 'treemanifest' in repo.requirements:
             part.addparam('treemanifest', '1')
 
 @getbundle2partsgenerator('listkeys')
 def _getbundlelistkeysparts(bundler, repo, source, bundlecaps=None,
                             b2caps=None, **kwargs):
     """add parts containing listkeys namespaces to the requested bundle"""
     listkeys = kwargs.get('listkeys', ())
     for namespace in listkeys:
         part = bundler.newpart('listkeys')
         part.addparam('namespace', namespace)
         keys = repo.listkeys(namespace).items()
         part.data = pushkey.encodekeys(keys)
 
 @getbundle2partsgenerator('obsmarkers')
 def _getbundleobsmarkerpart(bundler, repo, source, bundlecaps=None,
                             b2caps=None, heads=None, **kwargs):
     """add an obsolescence markers part to the requested bundle"""
     if kwargs.get('obsmarkers', False):
         if heads is None:
             heads = repo.heads()
         subset = [c.node() for c in repo.set('::%ln', heads)]
         markers = repo.obsstore.relevantmarkers(subset)
         markers = sorted(markers)
         bundle2.buildobsmarkerspart(bundler, markers)
 
 @getbundle2partsgenerator('hgtagsfnodes')
 def _getbundletagsfnodes(bundler, repo, source, bundlecaps=None,
                          b2caps=None, heads=None, common=None,
                          **kwargs):
     """Transfer the .hgtags filenodes mapping.
 
     Only values for heads in this bundle will be transferred.
 
     The part data consists of pairs of 20 byte changeset node and .hgtags
     filenodes raw values.
     """
     # Don't send unless:
     # - changeset are being exchanged,
     # - the client supports it.
     if not (kwargs.get('cg', True) and 'hgtagsfnodes' in b2caps):
         return
 
     outgoing = _computeoutgoing(repo, heads, common)
     bundle2.addparttagsfnodescache(repo, bundler, outgoing)
 
 def _getbookmarks(repo, **kwargs):
     """Returns bookmark to node mapping.
 
     This function is primarily used to generate `bookmarks` bundle2 part.
     It is a separate function in order to make it easy to wrap it
     in extensions. Passing `kwargs` to the function makes it easy to
     add new parameters in extensions.
     """
 
     return dict(bookmod.listbinbookmarks(repo))
 
 def check_heads(repo, their_heads, context):
     """check if the heads of a repo have been modified
 
     Used by peer for unbundling.
     """
     heads = repo.heads()
     heads_hash = hashlib.sha1(''.join(sorted(heads))).digest()
     if not (their_heads == ['force'] or their_heads == heads or
             their_heads == ['hashed', heads_hash]):
         # someone else committed/pushed/unbundled while we
         # were transferring data
         raise error.PushRaced('repository changed while %s - '
                               'please try again' % context)
 
 def unbundle(repo, cg, heads, source, url):
     """Apply a bundle to a repo.
 
     this function makes sure the repo is locked during the application and have
     mechanism to check that no push race occurred between the creation of the
     bundle and its application.
 
     If the push was raced as PushRaced exception is raised."""
     r = 0
     # need a transaction when processing a bundle2 stream
     # [wlock, lock, tr] - needs to be an array so nested functions can modify it
     lockandtr = [None, None, None]
     recordout = None
     # quick fix for output mismatch with bundle2 in 3.4
     captureoutput = repo.ui.configbool('experimental', 'bundle2-output-capture')
     if url.startswith('remote:http:') or url.startswith('remote:https:'):
         captureoutput = True
     try:
         # note: outside bundle1, 'heads' is expected to be empty and this
         # 'check_heads' call wil be a no-op
         check_heads(repo, heads, 'uploading changes')
         # push can proceed
         if not isinstance(cg, bundle2.unbundle20):
             # legacy case: bundle1 (changegroup 01)
             txnname = "\n".join([source, util.hidepassword(url)])
             with repo.lock(), repo.transaction(txnname) as tr:
                 op = bundle2.applybundle(repo, cg, tr, source, url)
                 r = bundle2.combinechangegroupresults(op)
         else:
             r = None
             try:
                 def gettransaction():
                     if not lockandtr[2]:
                         lockandtr[0] = repo.wlock()
                         lockandtr[1] = repo.lock()
                         lockandtr[2] = repo.transaction(source)
                         lockandtr[2].hookargs['source'] = source
                         lockandtr[2].hookargs['url'] = url
                         lockandtr[2].hookargs['bundle2'] = '1'
                     return lockandtr[2]
 
                 # Do greedy locking by default until we're satisfied with lazy
                 # locking.
                 if not repo.ui.configbool('experimental', 'bundle2lazylocking'):
                     gettransaction()
 
                 op = bundle2.bundleoperation(repo, gettransaction,
                                              captureoutput=captureoutput)
                 try:
                     op = bundle2.processbundle(repo, cg, op=op)
                 finally:
                     r = op.reply
                     if captureoutput and r is not None:
                         repo.ui.pushbuffer(error=True, subproc=True)
                         def recordout(output):
                             r.newpart('output', data=output, mandatory=False)
                 if lockandtr[2] is not None:
                     lockandtr[2].close()
             except BaseException as exc:
                 exc.duringunbundle2 = True
                 if captureoutput and r is not None:
                     parts = exc._bundle2salvagedoutput = r.salvageoutput()
                     def recordout(output):
                         part = bundle2.bundlepart('output', data=output,
                                                   mandatory=False)
                         parts.append(part)
                 raise
     finally:
         lockmod.release(lockandtr[2], lockandtr[1], lockandtr[0])
         if recordout is not None:
             recordout(repo.ui.popbuffer())
     return r
 
 def _maybeapplyclonebundle(pullop):
     """Apply a clone bundle from a remote, if possible."""
 
     repo = pullop.repo
     remote = pullop.remote
 
     if not repo.ui.configbool('ui', 'clonebundles'):
         return
 
     # Only run if local repo is empty.
     if len(repo):
         return
 
     if pullop.heads:
         return
 
     if not remote.capable('clonebundles'):
         return
 
     res = remote._call('clonebundles')
 
     # If we call the wire protocol command, that's good enough to record the
     # attempt.
     pullop.clonebundleattempted = True
 
     entries = parseclonebundlesmanifest(repo, res)
     if not entries:
         repo.ui.note(_('no clone bundles available on remote; '
                        'falling back to regular clone\n'))
         return
 
     entries = filterclonebundleentries(repo, entries)
     if not entries:
         # There is a thundering herd concern here. However, if a server
         # operator doesn't advertise bundles appropriate for its clients,
         # they deserve what's coming. Furthermore, from a client's
         # perspective, no automatic fallback would mean not being able to
         # clone!
         repo.ui.warn(_('no compatible clone bundles available on server; '
                        'falling back to regular clone\n'))
         repo.ui.warn(_('(you may want to report this to the server '
                        'operator)\n'))
         return
 
     entries = sortclonebundleentries(repo.ui, entries)
 
     url = entries[0]['URL']
     repo.ui.status(_('applying clone bundle from %s\n') % url)
     if trypullbundlefromurl(repo.ui, repo, url):
         repo.ui.status(_('finished applying clone bundle\n'))
     # Bundle failed.
     #
     # We abort by default to avoid the thundering herd of
     # clients flooding a server that was expecting expensive
     # clone load to be offloaded.
     elif repo.ui.configbool('ui', 'clonebundlefallback'):
         repo.ui.warn(_('falling back to normal clone\n'))
     else:
         raise error.Abort(_('error applying bundle'),
                           hint=_('if this error persists, consider contacting '
                                  'the server operator or disable clone '
                                  'bundles via '
                                  '"--config ui.clonebundles=false"'))
 
 def parseclonebundlesmanifest(repo, s):
     """Parses the raw text of a clone bundles manifest.
 
     Returns a list of dicts. The dicts have a ``URL`` key corresponding
     to the URL and other keys are the attributes for the entry.
     """
     m = []
     for line in s.splitlines():
         fields = line.split()
         if not fields:
             continue
         attrs = {'URL': fields[0]}
         for rawattr in fields[1:]:
             key, value = rawattr.split('=', 1)
             key = urlreq.unquote(key)
             value = urlreq.unquote(value)
             attrs[key] = value
 
             # Parse BUNDLESPEC into components. This makes client-side
             # preferences easier to specify since you can prefer a single
             # component of the BUNDLESPEC.
             if key == 'BUNDLESPEC':
                 try:
                     comp, version, params = parsebundlespec(repo, value,
                                                             externalnames=True)
                     attrs['COMPRESSION'] = comp
                     attrs['VERSION'] = version
                 except error.InvalidBundleSpecification:
                     pass
                 except error.UnsupportedBundleSpecification:
                     pass
 
         m.append(attrs)
 
     return m
 
 def filterclonebundleentries(repo, entries):
     """Remove incompatible clone bundle manifest entries.
 
     Accepts a list of entries parsed with ``parseclonebundlesmanifest``
     and returns a new list consisting of only the entries that this client
     should be able to apply.
 
     There is no guarantee we'll be able to apply all returned entries because
     the metadata we use to filter on may be missing or wrong.
     """
     newentries = []
     for entry in entries:
         spec = entry.get('BUNDLESPEC')
         if spec:
             try:
                 parsebundlespec(repo, spec, strict=True)
             except error.InvalidBundleSpecification as e:
                 repo.ui.debug(str(e) + '\n')
                 continue
             except error.UnsupportedBundleSpecification as e:
                 repo.ui.debug('filtering %s because unsupported bundle '
                               'spec: %s\n' % (entry['URL'], str(e)))
                 continue
 
         if 'REQUIRESNI' in entry and not sslutil.hassni:
             repo.ui.debug('filtering %s because SNI not supported\n' %
                           entry['URL'])
             continue
 
         newentries.append(entry)
 
     return newentries
 
 class clonebundleentry(object):
     """Represents an item in a clone bundles manifest.
 
     This rich class is needed to support sorting since sorted() in Python 3
     doesn't support ``cmp`` and our comparison is complex enough that ``key=``
     won't work.
     """
 
     def __init__(self, value, prefers):
         self.value = value
         self.prefers = prefers
 
     def _cmp(self, other):
         for prefkey, prefvalue in self.prefers:
             avalue = self.value.get(prefkey)
             bvalue = other.value.get(prefkey)
 
             # Special case for b missing attribute and a matches exactly.
             if avalue is not None and bvalue is None and avalue == prefvalue:
                 return -1
 
             # Special case for a missing attribute and b matches exactly.
             if bvalue is not None and avalue is None and bvalue == prefvalue:
                 return 1
 
             # We can't compare unless attribute present on both.
             if avalue is None or bvalue is None:
                 continue
 
             # Same values should fall back to next attribute.
             if avalue == bvalue:
                 continue
 
             # Exact matches come first.
             if avalue == prefvalue:
                 return -1
             if bvalue == prefvalue:
                 return 1
 
             # Fall back to next attribute.
             continue
 
         # If we got here we couldn't sort by attributes and prefers. Fall
         # back to index order.
         return 0
 
     def __lt__(self, other):
         return self._cmp(other) < 0
 
     def __gt__(self, other):
         return self._cmp(other) > 0
 
     def __eq__(self, other):
         return self._cmp(other) == 0
 
     def __le__(self, other):
         return self._cmp(other) <= 0
 
     def __ge__(self, other):
         return self._cmp(other) >= 0
 
     def __ne__(self, other):
         return self._cmp(other) != 0
 
 def sortclonebundleentries(ui, entries):
     prefers = ui.configlist('ui', 'clonebundleprefers')
     if not prefers:
         return list(entries)
 
     prefers = [p.split('=', 1) for p in prefers]
 
     items = sorted(clonebundleentry(v, prefers) for v in entries)
     return [i.value for i in items]
 
 def trypullbundlefromurl(ui, repo, url):
     """Attempt to apply a bundle from a URL."""
     with repo.lock(), repo.transaction('bundleurl') as tr:
         try:
             fh = urlmod.open(ui, url)
             cg = readbundle(ui, fh, 'stream')
 
             if isinstance(cg, streamclone.streamcloneapplier):
                 cg.apply(repo)
             else:
                 bundle2.applybundle(repo, cg, tr, 'clonebundles', url)
             return True
         except urlerr.httperror as e:
             ui.warn(_('HTTP error fetching bundle: %s\n') % str(e))
         except urlerr.urlerror as e:
             ui.warn(_('error fetching bundle: %s\n') % e.reason)
 
         return False

tests/test-obsmarker-template.t

@@ -1,1270 +1,1270 b''
 This test file test the various templates related to obsmarkers.
 
 Global setup
 ============
 
   $ . $TESTDIR/testlib/obsmarker-common.sh
   $ cat >> $HGRCPATH <<EOF
   > [ui]
   > interactive = true
   > [phases]
   > publish=False
   > [experimental]
   > evolution=all
   > [alias]
   > tlog = log -G -T '{node|short}\
   >     {if(predecessors, "\n  Predecessors: {predecessors}")}\
   >     {if(predecessors, "\n  semi-colon: {join(predecessors, "; ")}")}\
   >     {if(predecessors, "\n  json: {predecessors|json}")}\
   >     {if(predecessors, "\n  map: {join(predecessors % "{rev}:{node}", " ")}")}\
   >     {if(successorssets, "\n  Successors: {successorssets}")}\
   >     {if(successorssets, "\n  multi-line: {join(successorssets, "\n  multi-line: ")}")}\
   >     {if(successorssets, "\n  json: {successorssets|json}")}\n'
   > EOF
 
 Test templates on amended commit
 ================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-amend
   $ cd $TESTTMP/templates-local-amend
   $ mkcommit ROOT
   $ mkcommit A0
   $ echo 42 >> A0
   $ hg commit --amend -m "A1"
   $ hg commit --amend -m "A2"
 
   $ hg log --hidden -G
   @  changeset:   4:d004c8f274b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   3:a468dc9b3633
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A1
   |
   | x  changeset:   2:f137d23bb3e1
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     temporary amend commit for 471f378eab4c
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
   $ hg up 'desc(A0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/     Successors: 4:d004c8f274b9
   |      multi-line: 4:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   o  ea207398892e
   
   $ hg up 'desc(A1)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: 3:a468dc9b3633
   |    semi-colon: 3:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 3:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | @  a468dc9b3633
   |/     Successors: 4:d004c8f274b9
   |      multi-line: 4:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   o  ea207398892e
   
 Predecessors template should show all the predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   o  d004c8f274b9
   |    Predecessors: 3:a468dc9b3633
   |    semi-colon: 3:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 3:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | @  a468dc9b3633
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 4:d004c8f274b9
   |      multi-line: 4:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   | x  f137d23bb3e1
   | |
   | x  471f378eab4c
   |/     Successors: 3:a468dc9b3633
   |      multi-line: 3:a468dc9b3633
   |      json: [["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]]
   o  ea207398892e
   
 
 Predecessors template shouldn't show anything as all obsolete commit are not
 visible.
   $ hg up 'desc(A2)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg tlog
   @  d004c8f274b9
   |
   o  ea207398892e
   
   $ hg tlog --hidden
   @  d004c8f274b9
   |    Predecessors: 3:a468dc9b3633
   |    semi-colon: 3:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 3:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | x  a468dc9b3633
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 4:d004c8f274b9
   |      multi-line: 4:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   | x  f137d23bb3e1
   | |
   | x  471f378eab4c
   |/     Successors: 3:a468dc9b3633
   |      multi-line: 3:a468dc9b3633
   |      json: [["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]]
   o  ea207398892e
   
 
 Test templates with splitted commit
 ===================================
 
   $ hg init $TESTTMP/templates-local-split
   $ cd $TESTTMP/templates-local-split
   $ mkcommit ROOT
   $ echo 42 >> a
   $ echo 43 >> b
   $ hg commit -A -m "A0"
   adding a
   adding b
   $ hg log --hidden -G
   @  changeset:   1:471597cad322
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 # Simulate split
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo 42 >> a
   $ hg commit -A -m "A0"
   adding a
   created new head
   $ echo 43 >> b
   $ hg commit -A -m "A0"
   adding b
   $ hg debugobsolete `getid "1"` `getid "2"` `getid "3"`
   obsoleted 1 changesets
 
   $ hg log --hidden -G
   @  changeset:   3:f257fde29c7a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   2:337fec4d2edc
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   | x  changeset:   1:471597cad322
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'obsolete()' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  f257fde29c7a
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   o  337fec4d2edc
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   | @  471597cad322
   |/     Successors: 2:337fec4d2edc 3:f257fde29c7a
   |      multi-line: 2:337fec4d2edc 3:f257fde29c7a
   |      json: [["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"]]
   o  ea207398892e
   
   $ hg up f257fde29c7a
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show a predecessor as it's not displayed in
 the log
   $ hg tlog
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   o  ea207398892e
   
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  f257fde29c7a
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   o  337fec4d2edc
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   | x  471597cad322
   |/     Successors: 2:337fec4d2edc 3:f257fde29c7a
   |      multi-line: 2:337fec4d2edc 3:f257fde29c7a
   |      json: [["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"]]
   o  ea207398892e
   
 Test templates with folded commit
 =================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-fold
   $ cd $TESTTMP/templates-local-fold
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg log --hidden -G
   @  changeset:   2:0dec01379d3b
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     B0
   |
   o  changeset:   1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Simulate a fold
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo "A0" > A0
   $ echo "B0" > B0
   $ hg commit -A -m "C0"
   adding A0
   adding B0
   created new head
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(C0)"`
   obsoleted 1 changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
   obsoleted 1 changesets
 
   $ hg log --hidden -G
   @  changeset:   3:eb5a0daa2192
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   | x  changeset:   2:0dec01379d3b
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/     Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show both predecessors as they should be both
 displayed
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  0dec01379d3b
   | |    Successors: 3:eb5a0daa2192
   | |    multi-line: 3:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
   $ hg up 'desc(C0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show predecessors as they are not displayed in
 the log
   $ hg tlog
   @  eb5a0daa2192
   |
   o  ea207398892e
   
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | x  0dec01379d3b
   | |    Successors: 3:eb5a0daa2192
   | |    multi-line: 3:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
 
 Test templates with divergence
 ==============================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-divergence
   $ cd $TESTTMP/templates-local-divergence
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg commit --amend -m "A1"
   $ hg log --hidden -G
   @  changeset:   2:fdf9bde5129a
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg update --hidden 'desc(A0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg commit --amend -m "A2"
   $ hg log --hidden -G
   @  changeset:   3:65b757b745b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  instability: divergent
+  |  instability: content-divergent
   |  summary:     A2
   |
   | o  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
-  |    instability: divergent
+  |    instability: content-divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg commit --amend -m 'A3'
   $ hg log --hidden -G
   @  changeset:   4:019fadeab383
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  instability: divergent
+  |  instability: content-divergent
   |  summary:     A3
   |
   | x  changeset:   3:65b757b745b9
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A2
   |
   | o  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
-  |    instability: divergent
+  |    instability: content-divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  019fadeab383
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | o  fdf9bde5129a
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/     Successors: 2:fdf9bde5129a; 4:019fadeab383
   |      multi-line: 2:fdf9bde5129a
   |      multi-line: 4:019fadeab383
   |      json: [["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"], ["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"]]
   o  ea207398892e
   
   $ hg up 'desc(A1)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show predecessors as they are not displayed in
 the log
   $ hg tlog
   o  019fadeab383
   |
   | @  fdf9bde5129a
   |/
   o  ea207398892e
   
 Predecessors template should the predecessors as we force their display with
 --hidden
   $ hg tlog --hidden
   o  019fadeab383
   |    Predecessors: 3:65b757b745b9
   |    semi-colon: 3:65b757b745b9
   |    json: ["65b757b745b935093c87a2bccd877521cccffcbd"]
   |    map: 3:65b757b745b935093c87a2bccd877521cccffcbd
   | x  65b757b745b9
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 4:019fadeab383
   |      multi-line: 4:019fadeab383
   |      json: [["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"]]
   | @  fdf9bde5129a
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/     Successors: 2:fdf9bde5129a; 3:65b757b745b9
   |      multi-line: 2:fdf9bde5129a
   |      multi-line: 3:65b757b745b9
   |      json: [["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"], ["65b757b745b935093c87a2bccd877521cccffcbd"]]
   o  ea207398892e
   
 
 Test templates with amended + folded commit
 ===========================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-amend-fold
   $ cd $TESTTMP/templates-local-amend-fold
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg commit --amend -m "B1"
   $ hg log --hidden -G
   @  changeset:   3:b7ea6d14e664
   |  tag:         tip
   |  parent:      1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     B1
   |
   | x  changeset:   2:0dec01379d3b
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     B0
   |
   o  changeset:   1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 # Simulate a fold
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo "A0" > A0
   $ echo "B0" > B0
   $ hg commit -A -m "C0"
   adding A0
   adding B0
   created new head
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(C0)"`
   obsoleted 1 changesets
   $ hg debugobsolete `getid "desc(B1)"` `getid "desc(C0)"`
   obsoleted 1 changesets
 
   $ hg log --hidden -G
   @  changeset:   4:eb5a0daa2192
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   | x  changeset:   3:b7ea6d14e664
   | |  parent:      1:471f378eab4c
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B1
   | |
   | | x  changeset:   2:0dec01379d3b
   | |/   user:        test
   | |    date:        Thu Jan 01 00:00:00 1970 +0000
   | |    summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/     Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  0dec01379d3b
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
   $ hg up 'desc(B1)' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c 3:b7ea6d14e664
   |    semi-colon: 1:471f378eab4c; 3:b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874 3:b7ea6d14e664bdc8922221f7992631b50da3fb07
   | @  b7ea6d14e664
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
   $ hg up 'desc(C0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show no predecessors as they are both non visible
   $ hg tlog
   @  eb5a0daa2192
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c 3:b7ea6d14e664
   |    semi-colon: 1:471f378eab4c; 3:b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874 3:b7ea6d14e664bdc8922221f7992631b50da3fb07
   | x  b7ea6d14e664
   | |    Predecessors: 2:0dec01379d3b
   | |    semi-colon: 2:0dec01379d3b
   | |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   | |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | | x  0dec01379d3b
   | |/     Successors: 3:b7ea6d14e664
   | |      multi-line: 3:b7ea6d14e664
   | |      json: [["b7ea6d14e664bdc8922221f7992631b50da3fb07"]]
   | x  471f378eab4c
   |/     Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
   
 
 Test template with pushed and pulled obs markers
 ================================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-remote-markers-1
   $ cd $TESTTMP/templates-local-remote-markers-1
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg clone $TESTTMP/templates-local-remote-markers-1 $TESTTMP/templates-local-remote-markers-2
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd $TESTTMP/templates-local-remote-markers-2
   $ hg log --hidden -G
   @  changeset:   1:471f378eab4c
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ cd $TESTTMP/templates-local-remote-markers-1
   $ hg commit --amend -m "A1"
   $ hg commit --amend -m "A2"
   $ hg log --hidden -G
   @  changeset:   3:7a230b46bf61
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ cd $TESTTMP/templates-local-remote-markers-2
   $ hg pull
   pulling from $TESTTMP/templates-local-remote-markers-1 (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 0 changes to 1 files (+1 heads)
   2 new obsolescence markers
   obsoleted 1 changesets
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg log --hidden -G
   o  changeset:   2:7a230b46bf61
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | @  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
   $ hg debugobsolete
   471f378eab4c5e25f6c77f785b27c936efb22874 fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e 7a230b46bf61e50b30308c6cfd7bd1269ef54702 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
 
 Check templates
 ---------------
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  7a230b46bf61
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/     Successors: 2:7a230b46bf61
   |      multi-line: 2:7a230b46bf61
   |      json: [["7a230b46bf61e50b30308c6cfd7bd1269ef54702"]]
   o  ea207398892e
   
   $ hg up 'desc(A2)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show no predecessors as they are non visible
   $ hg tlog
   @  7a230b46bf61
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  7a230b46bf61
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/     Successors: 2:7a230b46bf61
   |      multi-line: 2:7a230b46bf61
   |      json: [["7a230b46bf61e50b30308c6cfd7bd1269ef54702"]]
   o  ea207398892e
   
 
 Test template with obsmarkers cycle
 ===================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-cycle
   $ cd $TESTTMP/templates-local-cycle
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg up -r 0
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ mkcommit C0
   created new head
 
 Create the cycle
 
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(B0)"`
   obsoleted 1 changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
   obsoleted 1 changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(A0)"`
 
 Check templates
 ---------------
 
   $ hg tlog
   @  f897c6137566
   |
   o  ea207398892e
   
 
   $ hg up -r "desc(B0)" --hidden
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | @  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   o  ea207398892e
   
 
   $ hg up -r "desc(A0)" --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
 
   $ hg up -r "desc(ROOT)" --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |
   @  ea207398892e
   
 
   $ hg tlog --hidden
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | x  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   @  ea207398892e
   
 Test template with split + divergence with cycles
 =================================================
 
   $ hg log -G
   o  changeset:   3:f897c6137566
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   @  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Create a commit with three files
   $ touch A B C
   $ hg commit -A -m "Add A,B,C" A B C
 
 Split it
   $ hg up 3
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ touch A
   $ hg commit -A -m "Add A,B,C" A
   created new head
 
   $ touch B
   $ hg commit -A -m "Add A,B,C" B
 
   $ touch C
   $ hg commit -A -m "Add A,B,C" C
 
   $ hg log -G
   @  changeset:   7:ba2ed02b0c9a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   6:4a004186e638
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   | o  changeset:   4:9bd10a0775e4
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg debugobsolete `getid "4"` `getid "5"` `getid "6"` `getid "7"`
   obsoleted 1 changesets
   $ hg log -G
   @  changeset:   7:ba2ed02b0c9a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   6:4a004186e638
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Diverge one of the splitted commit
 
   $ hg up 6
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg commit --amend -m "Add only B"
 
   $ hg up 6 --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg commit --amend -m "Add B only"
 
   $ hg log -G
   @  changeset:   9:0b997eb7ceee
   |  tag:         tip
   |  parent:      5:dd800401bd8c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  instability: divergent
+  |  instability: content-divergent
   |  summary:     Add B only
   |
   | o  changeset:   8:b18bc8331526
   |/   parent:      5:dd800401bd8c
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
-  |    instability: divergent
+  |    instability: content-divergent
   |    summary:     Add only B
   |
   | o  changeset:   7:ba2ed02b0c9a
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
-  | |  instability: orphan, divergent
+  | |  instability: orphan, content-divergent
   | |  summary:     Add A,B,C
   | |
   | x  changeset:   6:4a004186e638
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     Add A,B,C
   |
   o  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
-  |  instability: divergent
+  |  instability: content-divergent
   |  summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Check templates
 ---------------
 
   $ hg tlog
   @  0b997eb7ceee
   |    Predecessors: 6:4a004186e638
   |    semi-colon: 6:4a004186e638
   |    json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |    map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   | o  b18bc8331526
   |/     Predecessors: 6:4a004186e638
   |      semi-colon: 6:4a004186e638
   |      json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |      map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   | o  ba2ed02b0c9a
   | |
   | x  4a004186e638
   |/     Successors: 8:b18bc8331526; 9:0b997eb7ceee
   |      multi-line: 8:b18bc8331526
   |      multi-line: 9:0b997eb7ceee
   |      json: [["b18bc8331526a22cbb1801022bd1555bf291c48b"], ["0b997eb7ceeee06200a02f8aab185979092d514e"]]
   o  dd800401bd8c
   |
   o  f897c6137566
   |
   o  ea207398892e
   
   $ hg tlog --hidden
   @  0b997eb7ceee
   |    Predecessors: 6:4a004186e638
   |    semi-colon: 6:4a004186e638
   |    json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |    map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   | o  b18bc8331526
   |/     Predecessors: 6:4a004186e638
   |      semi-colon: 6:4a004186e638
   |      json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |      map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   | o  ba2ed02b0c9a
   | |    Predecessors: 4:9bd10a0775e4
   | |    semi-colon: 4:9bd10a0775e4
   | |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   | |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | x  4a004186e638
   |/     Predecessors: 4:9bd10a0775e4
   |      semi-colon: 4:9bd10a0775e4
   |      json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |      map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |      Successors: 8:b18bc8331526; 9:0b997eb7ceee
   |      multi-line: 8:b18bc8331526
   |      multi-line: 9:0b997eb7ceee
   |      json: [["b18bc8331526a22cbb1801022bd1555bf291c48b"], ["0b997eb7ceeee06200a02f8aab185979092d514e"]]
   o  dd800401bd8c
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | x  9bd10a0775e4
   |/     Successors: 5:dd800401bd8c 6:4a004186e638 7:ba2ed02b0c9a
   |      multi-line: 5:dd800401bd8c 6:4a004186e638 7:ba2ed02b0c9a
   |      json: [["dd800401bd8c79d815329277739e433e883f784e", "4a004186e63889f20cb16434fcbd72220bd1eace", "ba2ed02b0c9a56b9fdbc4e79c7e57866984d8a1f"]]
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | x  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   o  ea207398892e
   
   $ hg up --hidden 4
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg rebase -r 7 -d 8 --config extensions.rebase=
   rebasing 7:ba2ed02b0c9a "Add A,B,C"
   $ hg tlog
   o  eceed8f98ffc
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | o  0b997eb7ceee
   | |    Predecessors: 4:9bd10a0775e4
   | |    semi-colon: 4:9bd10a0775e4
   | |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   | |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   o |  b18bc8331526
   |/     Predecessors: 4:9bd10a0775e4
   |      semi-colon: 4:9bd10a0775e4
   |      json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |      map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   o  dd800401bd8c
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | @  9bd10a0775e4
   |/     Successors: 5:dd800401bd8c 9:0b997eb7ceee 10:eceed8f98ffc; 5:dd800401bd8c 8:b18bc8331526 10:eceed8f98ffc
   |      multi-line: 5:dd800401bd8c 9:0b997eb7ceee 10:eceed8f98ffc
   |      multi-line: 5:dd800401bd8c 8:b18bc8331526 10:eceed8f98ffc
   |      json: [["dd800401bd8c79d815329277739e433e883f784e", "0b997eb7ceeee06200a02f8aab185979092d514e", "eceed8f98ffc4186032e29a6542ab98888ebf68d"], ["dd800401bd8c79d815329277739e433e883f784e", "b18bc8331526a22cbb1801022bd1555bf291c48b", "eceed8f98ffc4186032e29a6542ab98888ebf68d"]]
   o  f897c6137566
   |
   o  ea207398892e
   
 Test templates with pruned commits
 ==================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-prune
   $ cd $TESTTMP/templates-local-prune
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg debugobsolete --record-parent `getid "."`
   obsoleted 1 changesets
 
 Check output
 ------------
 
   $ hg up "desc(A0)" --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg tlog
   @  471f378eab4c
   |
   o  ea207398892e
   

tests/test-obsolete-divergent.t

@@ -1,685 +1,685 b''
 Test file dedicated to testing the divergent troubles from obsolete changeset.
 
 This is the most complex troubles from far so we isolate it in a dedicated
 file.
 
 Enable obsolete
 
   $ cat >> $HGRCPATH << EOF
   > [ui]
   > logtemplate = {rev}:{node|short} {desc}\n
   > [experimental]
   > evolution=createmarkers
   > [extensions]
   > drawdag=$TESTDIR/drawdag.py
   > [alias]
   > debugobsolete = debugobsolete -d '0 0'
   > [phases]
   > publish=False
   > EOF
 
 
   $ mkcommit() {
   >    echo "$1" > "$1"
   >    hg add "$1"
   >    hg ci -m "$1"
   > }
   $ getid() {
   >    hg log --hidden -r "desc('$1')" -T '{node}\n'
   > }
 
 setup repo
 
   $ hg init reference
   $ cd reference
   $ mkcommit base
   $ mkcommit A_0
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ mkcommit A_1
   created new head
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ mkcommit A_2
   created new head
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ cd ..
 
 
   $ newcase() {
   >    hg clone -u 0 -q reference $1
   >    cd $1
   > }
 
 direct divergence
 -----------------
 
 A_1 have two direct and divergent successors A_1 and A_1
 
   $ newcase direct
   $ hg debugobsolete `getid A_0` `getid A_1`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_0` `getid A_2`
   $ hg log -G --hidden
   o  3:392fd25390da A_2
   |
   | o  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   @  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg log -r 'divergent()'
   2:82623d38b9ba A_1
   3:392fd25390da A_2
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
 
 check that mercurial refuse to push
 
   $ hg init ../other
   $ hg push ../other
   pushing to ../other
   searching for changes
-  abort: push includes divergent changeset: 392fd25390da!
+  abort: push includes content-divergent changeset: 392fd25390da!
   [255]
 
   $ cd ..
 
 
 indirect divergence with known changeset
 -------------------------------------------
 
   $ newcase indirect_known
   $ hg debugobsolete `getid A_0` `getid A_1`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_0` `getid A_2`
   $ mkcommit A_3
   created new head
   $ hg debugobsolete `getid A_2` `getid A_3`
   obsoleted 1 changesets
   $ hg log -G --hidden
   @  4:01f36c5a8fda A_3
   |
   | x  3:392fd25390da A_2
   |/
   | o  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   o  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       01f36c5a8fda
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       01f36c5a8fda
   01f36c5a8fda
       01f36c5a8fda
   $ hg log -r 'divergent()'
   2:82623d38b9ba A_1
   4:01f36c5a8fda A_3
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   82623d38b9ba
       82623d38b9ba
   01f36c5a8fda
       01f36c5a8fda
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   01f36c5a8fda
       01f36c5a8fda
   $ cd ..
 
 
 indirect divergence with known changeset
 -------------------------------------------
 
   $ newcase indirect_unknown
   $ hg debugobsolete `getid A_0` aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   obsoleted 1 changesets
   $ hg debugobsolete aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa `getid A_1`
   $ hg debugobsolete `getid A_0` `getid A_2`
   $ hg log -G --hidden
   o  3:392fd25390da A_2
   |
   | o  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   @  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg log -r 'divergent()'
   2:82623d38b9ba A_1
   3:392fd25390da A_2
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ cd ..
 
 do not take unknown node in account if they are final
 -----------------------------------------------------
 
   $ newcase final-unknown
   $ hg debugobsolete `getid A_0` `getid A_1`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_1` `getid A_2`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_0` bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
   $ hg debugobsolete bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb cccccccccccccccccccccccccccccccccccccccc
   $ hg debugobsolete `getid A_1` dddddddddddddddddddddddddddddddddddddddd
 
   $ hg debugsuccessorssets --hidden 'desc('A_0')'
   007dc284c1f8
       392fd25390da
   $ hg debugsuccessorssets 'desc('A_0')' --closest
   $ hg debugsuccessorssets 'desc('A_0')' --closest --hidden
   007dc284c1f8
       82623d38b9ba
 
   $ cd ..
 
 divergence that converge again is not divergence anymore
 -----------------------------------------------------
 
   $ newcase converged_divergence
   $ hg debugobsolete `getid A_0` `getid A_1`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_0` `getid A_2`
   $ mkcommit A_3
   created new head
   $ hg debugobsolete `getid A_1` `getid A_3`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_2` `getid A_3`
   obsoleted 1 changesets
   $ hg log -G --hidden
   @  4:01f36c5a8fda A_3
   |
   | x  3:392fd25390da A_2
   |/
   | x  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   o  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       01f36c5a8fda
   82623d38b9ba
       01f36c5a8fda
   392fd25390da
       01f36c5a8fda
   01f36c5a8fda
       01f36c5a8fda
   $ hg log -r 'divergent()'
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   01f36c5a8fda
       01f36c5a8fda
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba
       392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   01f36c5a8fda
       01f36c5a8fda
   $ cd ..
 
 split is not divergences
 -----------------------------
 
   $ newcase split
   $ hg debugobsolete `getid A_0` `getid A_1` `getid A_2`
   obsoleted 1 changesets
   $ hg log -G --hidden
   o  3:392fd25390da A_2
   |
   | o  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   @  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba 392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg log -r 'divergent()'
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba 392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
 
 Even when subsequent rewriting happen
 
   $ mkcommit A_3
   created new head
   $ hg debugobsolete `getid A_1` `getid A_3`
   obsoleted 1 changesets
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ mkcommit A_4
   created new head
   $ hg debugobsolete `getid A_2` `getid A_4`
   obsoleted 1 changesets
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ mkcommit A_5
   created new head
   $ hg debugobsolete `getid A_4` `getid A_5`
   obsoleted 1 changesets
   $ hg log -G --hidden
   @  6:e442cfc57690 A_5
   |
   | x  5:6a411f0d7a0a A_4
   |/
   | o  4:01f36c5a8fda A_3
   |/
   | x  3:392fd25390da A_2
   |/
   | x  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   o  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       01f36c5a8fda e442cfc57690
   82623d38b9ba
       01f36c5a8fda
   392fd25390da
       e442cfc57690
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       e442cfc57690
   e442cfc57690
       e442cfc57690
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   01f36c5a8fda
       01f36c5a8fda
   e442cfc57690
       e442cfc57690
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba 392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       e442cfc57690
   e442cfc57690
       e442cfc57690
   $ hg log -r 'divergent()'
 
 Check more complex obsolescence graft (with divergence)
 
   $ mkcommit B_0; hg up 0
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg debugobsolete `getid B_0` `getid A_2`
   obsoleted 1 changesets
   $ mkcommit A_7; hg up 0
   created new head
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ mkcommit A_8; hg up 0
   created new head
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugobsolete `getid A_5` `getid A_7` `getid A_8`
   obsoleted 1 changesets
   $ mkcommit A_9; hg up 0
   created new head
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugobsolete `getid A_5` `getid A_9`
   $ hg log -G --hidden
   o  10:bed64f5d2f5a A_9
   |
   | o  9:14608b260df8 A_8
   |/
   | o  8:7ae126973a96 A_7
   |/
   | x  7:3750ebee865d B_0
   | |
   | x  6:e442cfc57690 A_5
   |/
   | x  5:6a411f0d7a0a A_4
   |/
   | o  4:01f36c5a8fda A_3
   |/
   | x  3:392fd25390da A_2
   |/
   | x  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   @  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       01f36c5a8fda bed64f5d2f5a
       01f36c5a8fda 7ae126973a96 14608b260df8
   82623d38b9ba
       01f36c5a8fda
   392fd25390da
       bed64f5d2f5a
       7ae126973a96 14608b260df8
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       bed64f5d2f5a
       7ae126973a96 14608b260df8
   e442cfc57690
       bed64f5d2f5a
       7ae126973a96 14608b260df8
   3750ebee865d
       bed64f5d2f5a
       7ae126973a96 14608b260df8
   7ae126973a96
       7ae126973a96
   14608b260df8
       14608b260df8
   bed64f5d2f5a
       bed64f5d2f5a
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   01f36c5a8fda
       01f36c5a8fda
   7ae126973a96
       7ae126973a96
   14608b260df8
       14608b260df8
   bed64f5d2f5a
       bed64f5d2f5a
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba 392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       e442cfc57690
   e442cfc57690
       e442cfc57690
   3750ebee865d
       392fd25390da
   7ae126973a96
       7ae126973a96
   14608b260df8
       14608b260df8
   bed64f5d2f5a
       bed64f5d2f5a
   $ hg log -r 'divergent()'
   4:01f36c5a8fda A_3
   8:7ae126973a96 A_7
   9:14608b260df8 A_8
   10:bed64f5d2f5a A_9
 
 fix the divergence
 
   $ mkcommit A_A; hg up 0
   created new head
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugobsolete `getid A_9` `getid A_A`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_7` `getid A_A`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_8` `getid A_A`
   obsoleted 1 changesets
   $ hg log -G --hidden
   o  11:a139f71be9da A_A
   |
   | x  10:bed64f5d2f5a A_9
   |/
   | x  9:14608b260df8 A_8
   |/
   | x  8:7ae126973a96 A_7
   |/
   | x  7:3750ebee865d B_0
   | |
   | x  6:e442cfc57690 A_5
   |/
   | x  5:6a411f0d7a0a A_4
   |/
   | o  4:01f36c5a8fda A_3
   |/
   | x  3:392fd25390da A_2
   |/
   | x  2:82623d38b9ba A_1
   |/
   | x  1:007dc284c1f8 A_0
   |/
   @  0:d20a80d4def3 base
   
   $ hg debugsuccessorssets --hidden 'all()'
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       01f36c5a8fda a139f71be9da
   82623d38b9ba
       01f36c5a8fda
   392fd25390da
       a139f71be9da
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       a139f71be9da
   e442cfc57690
       a139f71be9da
   3750ebee865d
       a139f71be9da
   7ae126973a96
       a139f71be9da
   14608b260df8
       a139f71be9da
   bed64f5d2f5a
       a139f71be9da
   a139f71be9da
       a139f71be9da
   $ hg debugsuccessorssets 'all()' --closest
   d20a80d4def3
       d20a80d4def3
   01f36c5a8fda
       01f36c5a8fda
   a139f71be9da
       a139f71be9da
   $ hg debugsuccessorssets 'all()' --closest --hidden
   d20a80d4def3
       d20a80d4def3
   007dc284c1f8
       82623d38b9ba 392fd25390da
   82623d38b9ba
       82623d38b9ba
   392fd25390da
       392fd25390da
   01f36c5a8fda
       01f36c5a8fda
   6a411f0d7a0a
       e442cfc57690
   e442cfc57690
       e442cfc57690
   3750ebee865d
       392fd25390da
   7ae126973a96
       a139f71be9da
   14608b260df8
       a139f71be9da
   bed64f5d2f5a
       a139f71be9da
   a139f71be9da
       a139f71be9da
   $ hg log -r 'divergent()'
 
   $ cd ..
 
 
 Subset does not diverge
 ------------------------------
 
 Do not report divergent successors-set if it is a subset of another
 successors-set. (report [A,B] not [A] + [A,B])
 
   $ newcase subset
   $ hg debugobsolete `getid A_0` `getid A_2`
   obsoleted 1 changesets
   $ hg debugobsolete `getid A_0` `getid A_1` `getid A_2`
   $ hg debugsuccessorssets --hidden 'desc('A_0')'
   007dc284c1f8
       82623d38b9ba 392fd25390da
   $ hg debugsuccessorssets 'desc('A_0')' --closest
   $ hg debugsuccessorssets 'desc('A_0')' --closest --hidden
   007dc284c1f8
       82623d38b9ba 392fd25390da
 
   $ cd ..
 
 Use scmutil.cleanupnodes API to create divergence
 
   $ hg init cleanupnodes
   $ cd cleanupnodes
   $ hg debugdrawdag <<'EOS'
   >   B1  B3 B4
   >   |     \|
   >   A      Z
   > EOS
 
   $ hg update -q B1
   $ echo 3 >> B
   $ hg commit --amend -m B2
   $ cat > $TESTTMP/scmutilcleanup.py <<EOF
   > from mercurial import registrar, scmutil
   > cmdtable = {}
   > command = registrar.command(cmdtable)
   > @command('cleanup')
   > def cleanup(ui, repo):
   >     def node(expr):
   >         unfi = repo.unfiltered()
   >         rev = unfi.revs(expr).first()
   >         return unfi.changelog.node(rev)
   >     with repo.wlock(), repo.lock(), repo.transaction('delayedstrip'):
   >         mapping = {node('desc(B1)'): [node('desc(B3)')],
   >                    node('desc(B3)'): [node('desc(B4)')]}
   >         scmutil.cleanupnodes(repo, mapping, 'test')
   > EOF
 
   $ rm .hg/localtags
   $ hg cleanup --config extensions.t=$TESTTMP/scmutilcleanup.py
   $ hg log -G -T '{rev}:{node|short} {desc} {troubles}' -r 'sort(all(), topo)'
-  @  5:1a2a9b5b0030 B2 divergent
+  @  5:1a2a9b5b0030 B2 content-divergent
   |
-  | o  4:70d5a63ca112 B4 divergent
+  | o  4:70d5a63ca112 B4 content-divergent
   | |
   | o  1:48b9aae0607f Z
   |
   o  0:426bada5c675 A
   
   $ hg debugobsolete
   a178212c3433c4e77b573f6011e29affb8aefa33 1a2a9b5b0030632400aa78e00388c20f99d3ec44 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   a178212c3433c4e77b573f6011e29affb8aefa33 ad6478fb94ecec98b86daae98722865d494ac561 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   ad6478fb94ecec98b86daae98722865d494ac561 70d5a63ca112acb3764bc1d7320ca90ea688d671 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}

tests/test-rebase-obsolete.t

@@ -1,1158 +1,1158 b''
 ==========================
 Test rebase with obsolete
 ==========================
 
 Enable obsolete
 
   $ cat >> $HGRCPATH << EOF
   > [ui]
   > logtemplate= {rev}:{node|short} {desc|firstline}
   > [experimental]
   > evolution=createmarkers,allowunstable
   > [phases]
   > publish=False
   > [extensions]
   > rebase=
   > drawdag=$TESTDIR/drawdag.py
   > EOF
 
 Setup rebase canonical repo
 
   $ hg init base
   $ cd base
   $ hg unbundle "$TESTDIR/bundles/rebase.hg"
   adding changesets
   adding manifests
   adding file changes
   added 8 changesets with 7 changes to 7 files (+2 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg up tip
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg log -G
   @  7:02de42196ebe H
   |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   | o  3:32af7686d403 D
   | |
   | o  2:5fddd98957c8 C
   | |
   | o  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ cd ..
 
 simple rebase
 ---------------------------------
 
   $ hg clone base simple
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd simple
   $ hg up 32af7686d403
   3 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg rebase -d eea13746799a
   rebasing 1:42ccdea3bb16 "B"
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   $ hg log -G
   @  10:8eeb3c33ad33 D
   |
   o  9:2327fea05063 C
   |
   o  8:e4e5be0395b2 B
   |
   | o  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg log --hidden -G
   @  10:8eeb3c33ad33 D
   |
   o  9:2327fea05063 C
   |
   o  8:e4e5be0395b2 B
   |
   | o  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   | x  3:32af7686d403 D
   | |
   | x  2:5fddd98957c8 C
   | |
   | x  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg debugobsolete
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 e4e5be0395b2cbd471ed22a26b1b6a1a0658a794 0 (*) {'user': 'test'} (glob)
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b 2327fea05063f39961b14cb69435a9898dc9a245 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a 8eeb3c33ad33d452c89e5dcf611c347f978fb42b 0 (*) {'user': 'test'} (glob)
 
 
   $ cd ..
 
 empty changeset
 ---------------------------------
 
   $ hg clone base empty
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd empty
   $ hg up eea13746799a
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 We make a copy of both the first changeset in the rebased and some other in the
 set.
 
   $ hg graft 42ccdea3bb16 32af7686d403
   grafting 1:42ccdea3bb16 "B"
   grafting 3:32af7686d403 "D"
   $ hg rebase  -s 42ccdea3bb16 -d .
   rebasing 1:42ccdea3bb16 "B"
   note: rebase of 1:42ccdea3bb16 created no changes to commit
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   note: rebase of 3:32af7686d403 created no changes to commit
   $ hg log -G
   o  10:5ae4c968c6ac C
   |
   @  9:08483444fef9 D
   |
   o  8:8877864f1edb B
   |
   | o  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg log --hidden -G
   o  10:5ae4c968c6ac C
   |
   @  9:08483444fef9 D
   |
   o  8:8877864f1edb B
   |
   | o  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   | x  3:32af7686d403 D
   | |
   | x  2:5fddd98957c8 C
   | |
   | x  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg debugobsolete
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 0 {cd010b8cd998f3981a5a8115f94f8da4ab506089} (*) {'user': 'test'} (glob)
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b 5ae4c968c6aca831df823664e706c9d4aa34473d 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a 0 {5fddd98957c8a54a4d436dfe1da9d87f21a1b97b} (*) {'user': 'test'} (glob)
 
 
 More complex case where part of the rebase set were already rebased
 
   $ hg rebase --rev 'desc(D)' --dest 'desc(H)'
   rebasing 9:08483444fef9 "D"
   $ hg debugobsolete
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 0 {cd010b8cd998f3981a5a8115f94f8da4ab506089} (*) {'user': 'test'} (glob)
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b 5ae4c968c6aca831df823664e706c9d4aa34473d 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a 0 {5fddd98957c8a54a4d436dfe1da9d87f21a1b97b} (*) {'user': 'test'} (glob)
   08483444fef91d6224f6655ee586a65d263ad34c 4596109a6a4328c398bde3a4a3b6737cfade3003 0 (*) {'user': 'test'} (glob)
   $ hg log -G
   @  11:4596109a6a43 D
   |
   | o  10:5ae4c968c6ac C
   | |
   | x  9:08483444fef9 D
   | |
   | o  8:8877864f1edb B
   | |
   o |  7:02de42196ebe H
   | |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg rebase --source 'desc(B)' --dest 'tip' --config experimental.rebaseskipobsolete=True
   rebasing 8:8877864f1edb "B"
   note: not rebasing 9:08483444fef9 "D", already in destination as 11:4596109a6a43 "D"
   rebasing 10:5ae4c968c6ac "C"
   $ hg debugobsolete
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 0 {cd010b8cd998f3981a5a8115f94f8da4ab506089} (*) {'user': 'test'} (glob)
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b 5ae4c968c6aca831df823664e706c9d4aa34473d 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a 0 {5fddd98957c8a54a4d436dfe1da9d87f21a1b97b} (*) {'user': 'test'} (glob)
   08483444fef91d6224f6655ee586a65d263ad34c 4596109a6a4328c398bde3a4a3b6737cfade3003 0 (*) {'user': 'test'} (glob)
   8877864f1edb05d0e07dc4ba77b67a80a7b86672 462a34d07e599b87ea08676a449373fe4e2e1347 0 (*) {'user': 'test'} (glob)
   5ae4c968c6aca831df823664e706c9d4aa34473d 98f6af4ee9539e14da4465128f894c274900b6e5 0 (*) {'user': 'test'} (glob)
   $ hg log --rev 'divergent()'
   $ hg log -G
   o  13:98f6af4ee953 C
   |
   o  12:462a34d07e59 B
   |
   @  11:4596109a6a43 D
   |
   o  7:02de42196ebe H
   |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg log --style default --debug -r 4596109a6a4328c398bde3a4a3b6737cfade3003
   changeset:   11:4596109a6a4328c398bde3a4a3b6737cfade3003
   phase:       draft
   parent:      7:02de42196ebee42ef284b6780a87cdc96e8eaab6
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    11:a91006e3a02f1edf631f7018e6e5684cf27dd905
   user:        Nicolas Dumazet <[e-mail]>
   date:        Sat Apr 30 15:24:48 2011 +0200
   files+:      D
   extra:       branch=default
   extra:       rebase_source=08483444fef91d6224f6655ee586a65d263ad34c
   extra:       source=32af7686d403cf45b5d95f2d70cebea587ac806a
   description:
   D
   
   
   $ hg up -qr 'desc(G)'
   $ hg graft 4596109a6a4328c398bde3a4a3b6737cfade3003
   grafting 11:4596109a6a43 "D"
   $ hg up -qr 'desc(E)'
   $ hg rebase -s tip -d .
   rebasing 14:9e36056a46e3 "D" (tip)
   $ hg log --style default --debug -r tip
   changeset:   15:627d4614809036ba22b9e7cb31638ddc06ab99ab
   tag:         tip
   phase:       draft
   parent:      4:9520eea781bcca16c1e15acc0ba14335a0e8e5ba
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    15:648e8ede73ae3e497d093d3a4c8fcc2daa864f42
   user:        Nicolas Dumazet <[e-mail]>
   date:        Sat Apr 30 15:24:48 2011 +0200
   files+:      D
   extra:       branch=default
   extra:       intermediate-source=4596109a6a4328c398bde3a4a3b6737cfade3003
   extra:       rebase_source=9e36056a46e37c9776168c7375734eebc70e294f
   extra:       source=32af7686d403cf45b5d95f2d70cebea587ac806a
   description:
   D
   
   
 Start rebase from a commit that is obsolete but not hidden only because it's
 a working copy parent. We should be moved back to the starting commit as usual
 even though it is hidden (until we're moved there).
 
   $ hg --hidden up -qr 'first(hidden())'
   $ hg rebase --rev 13 --dest 15
   rebasing 13:98f6af4ee953 "C"
   $ hg log -G
   o  16:294a2b93eb4d C
   |
   o  15:627d46148090 D
   |
   | o  12:462a34d07e59 B
   | |
   | o  11:4596109a6a43 D
   | |
   | o  7:02de42196ebe H
   | |
   +---o  6:eea13746799a G
   | |/
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   | @  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
 
   $ cd ..
 
 collapse rebase
 ---------------------------------
 
   $ hg clone base collapse
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd collapse
   $ hg rebase  -s 42ccdea3bb16 -d eea13746799a --collapse
   rebasing 1:42ccdea3bb16 "B"
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   $ hg log -G
   o  8:4dc2197e807b Collapsed revision
   |
   | @  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg log --hidden -G
   o  8:4dc2197e807b Collapsed revision
   |
   | @  7:02de42196ebe H
   | |
   o |  6:eea13746799a G
   |\|
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   | x  3:32af7686d403 D
   | |
   | x  2:5fddd98957c8 C
   | |
   | x  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg id --debug -r tip
   4dc2197e807bae9817f09905b50ab288be2dbbcf tip
   $ hg debugobsolete
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 4dc2197e807bae9817f09905b50ab288be2dbbcf 0 (*) {'user': 'test'} (glob)
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b 4dc2197e807bae9817f09905b50ab288be2dbbcf 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a 4dc2197e807bae9817f09905b50ab288be2dbbcf 0 (*) {'user': 'test'} (glob)
 
   $ cd ..
 
 Rebase set has hidden descendants
 ---------------------------------
 
 We rebase a changeset which has a hidden changeset. The hidden changeset must
 not be rebased.
 
   $ hg clone base hidden
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd hidden
   $ hg rebase -s 5fddd98957c8 -d eea13746799a
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   $ hg rebase -s 42ccdea3bb16 -d 02de42196ebe
   rebasing 1:42ccdea3bb16 "B"
   $ hg log -G
   o  10:7c6027df6a99 B
   |
   | o  9:cf44d2f5a9f4 D
   | |
   | o  8:e273c5e7d2d2 C
   | |
   @ |  7:02de42196ebe H
   | |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ hg log --hidden -G
   o  10:7c6027df6a99 B
   |
   | o  9:cf44d2f5a9f4 D
   | |
   | o  8:e273c5e7d2d2 C
   | |
   @ |  7:02de42196ebe H
   | |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   | x  3:32af7686d403 D
   | |
   | x  2:5fddd98957c8 C
   | |
   | x  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg debugobsolete
   5fddd98957c8a54a4d436dfe1da9d87f21a1b97b e273c5e7d2d29df783dce9f9eaa3ac4adc69c15d 0 (*) {'user': 'test'} (glob)
   32af7686d403cf45b5d95f2d70cebea587ac806a cf44d2f5a9f4297a62be94cbdd3dff7c7dc54258 0 (*) {'user': 'test'} (glob)
   42ccdea3bb16d28e1848c95fe2e44c000f3f21b1 7c6027df6a99d93f461868e5433f63bde20b6dfb 0 (*) {'user': 'test'} (glob)
 
 Test that rewriting leaving instability behind is allowed
 ---------------------------------------------------------------------
 
   $ hg log -r 'children(8)'
   9:cf44d2f5a9f4 D (no-eol)
   $ hg rebase -r 8
   rebasing 8:e273c5e7d2d2 "C"
   $ hg log -G
   o  11:0d8f238b634c C
   |
   o  10:7c6027df6a99 B
   |
   | o  9:cf44d2f5a9f4 D
   | |
   | x  8:e273c5e7d2d2 C
   | |
   @ |  7:02de42196ebe H
   | |
   | o  6:eea13746799a G
   |/|
   o |  5:24b6387c8c8c F
   | |
   | o  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
 
 
 Test multiple root handling
 ------------------------------------
 
   $ hg rebase --dest 4 --rev '7+11+9'
   rebasing 9:cf44d2f5a9f4 "D"
   rebasing 7:02de42196ebe "H"
   not rebasing ignored 10:7c6027df6a99 "B"
   rebasing 11:0d8f238b634c "C" (tip)
   $ hg log -G
   o  14:1e8370e38cca C
   |
   @  13:bfe264faf697 H
   |
   | o  12:102b4c1d889b D
   |/
   | o  10:7c6027df6a99 B
   | |
   | x  7:02de42196ebe H
   | |
   +---o  6:eea13746799a G
   | |/
   | o  5:24b6387c8c8c F
   | |
   o |  4:9520eea781bc E
   |/
   o  0:cd010b8cd998 A
   
   $ cd ..
 
 Detach both parents
 
   $ hg init double-detach
   $ cd double-detach
 
   $ hg debugdrawdag <<EOF
   >   F
   >  /|
   > C E
   > | |
   > B D G
   >  \|/
   >   A
   > EOF
 
 BROKEN: This raises an exception
   $ hg rebase -d G -r 'B + D + F' 2>&1 | grep '^AssertionError'
   AssertionError: no base found to rebase on (defineparents called wrong)
 
   $ cd ..
 
 test on rebase dropping a merge
 
 (setup)
 
   $ hg init dropmerge
   $ cd dropmerge
   $ hg unbundle "$TESTDIR/bundles/rebase.hg"
   adding changesets
   adding manifests
   adding file changes
   added 8 changesets with 7 changes to 7 files (+2 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg up 3
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg merge 7
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m 'M'
   $ echo I > I
   $ hg add I
   $ hg ci -m I
   $ hg log -G
   @  9:4bde274eefcf I
   |
   o    8:53a6a128b2b7 M
   |\
   | o  7:02de42196ebe H
   | |
   | | o  6:eea13746799a G
   | |/|
   | o |  5:24b6387c8c8c F
   | | |
   | | o  4:9520eea781bc E
   | |/
   o |  3:32af7686d403 D
   | |
   o |  2:5fddd98957c8 C
   | |
   o |  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
 (actual test)
 
   $ hg rebase --dest 6 --rev '((desc(H) + desc(D))::) - desc(M)'
   rebasing 3:32af7686d403 "D"
   rebasing 7:02de42196ebe "H"
   not rebasing ignored 8:53a6a128b2b7 "M"
   rebasing 9:4bde274eefcf "I" (tip)
   $ hg log -G
   @  12:acd174b7ab39 I
   |
   o  11:6c11a6218c97 H
   |
   | o  10:b5313c85b22e D
   |/
   | o    8:53a6a128b2b7 M
   | |\
   | | x  7:02de42196ebe H
   | | |
   o---+  6:eea13746799a G
   | | |
   | | o  5:24b6387c8c8c F
   | | |
   o---+  4:9520eea781bc E
    / /
   x |  3:32af7686d403 D
   | |
   o |  2:5fddd98957c8 C
   | |
   o |  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
 
 Test hidden changesets in the rebase set (issue4504)
 
   $ hg up --hidden 9
   3 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo J > J
   $ hg add J
   $ hg commit -m J
   $ hg debugobsolete `hg log --rev . -T '{node}'`
   obsoleted 1 changesets
 
   $ hg rebase --rev .~1::. --dest 'max(desc(D))' --traceback --config experimental.rebaseskipobsolete=off
   rebasing 9:4bde274eefcf "I"
   rebasing 13:06edfc82198f "J" (tip)
   $ hg log -G
   @  15:5ae8a643467b J
   |
   o  14:9ad579b4a5de I
   |
   | o  12:acd174b7ab39 I
   | |
   | o  11:6c11a6218c97 H
   | |
   o |  10:b5313c85b22e D
   |/
   | o    8:53a6a128b2b7 M
   | |\
   | | x  7:02de42196ebe H
   | | |
   o---+  6:eea13746799a G
   | | |
   | | o  5:24b6387c8c8c F
   | | |
   o---+  4:9520eea781bc E
    / /
   x |  3:32af7686d403 D
   | |
   o |  2:5fddd98957c8 C
   | |
   o |  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg up 14 -C
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "K" > K
   $ hg add K
   $ hg commit --amend -m "K"
   $ echo "L" > L
   $ hg add L
   $ hg commit -m "L"
   $ hg up '.^'
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "M" > M
   $ hg add M
   $ hg commit --amend -m "M"
   $ hg log -G
   @  20:bfaedf8eb73b M
   |
   | o  18:97219452e4bd L
   | |
   | x  17:fc37a630c901 K
   |/
   | o  15:5ae8a643467b J
   | |
   | x  14:9ad579b4a5de I
   |/
   | o  12:acd174b7ab39 I
   | |
   | o  11:6c11a6218c97 H
   | |
   o |  10:b5313c85b22e D
   |/
   | o    8:53a6a128b2b7 M
   | |\
   | | x  7:02de42196ebe H
   | | |
   o---+  6:eea13746799a G
   | | |
   | | o  5:24b6387c8c8c F
   | | |
   o---+  4:9520eea781bc E
    / /
   x |  3:32af7686d403 D
   | |
   o |  2:5fddd98957c8 C
   | |
   o |  1:42ccdea3bb16 B
   |/
   o  0:cd010b8cd998 A
   
   $ hg rebase -s 14 -d 18 --config experimental.rebaseskipobsolete=True
   note: not rebasing 14:9ad579b4a5de "I", already in destination as 17:fc37a630c901 "K"
   rebasing 15:5ae8a643467b "J"
 
   $ cd ..
 
 Skip obsolete changeset even with multiple hops
 -----------------------------------------------
 
 setup
 
   $ hg init obsskip
   $ cd obsskip
   $ cat << EOF >> .hg/hgrc
   > [experimental]
   > rebaseskipobsolete = True
   > [extensions]
   > strip =
   > EOF
   $ echo A > A
   $ hg add A
   $ hg commit -m A
   $ echo B > B
   $ hg add B
   $ hg commit -m B0
   $ hg commit --amend -m B1
   $ hg commit --amend -m B2
   $ hg up --hidden 'desc(B0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo C > C
   $ hg add C
   $ hg commit -m C
 
 Rebase finds its way in a chain of marker
 
   $ hg rebase -d 'desc(B2)'
   note: not rebasing 1:a8b11f55fb19 "B0", already in destination as 3:261e70097290 "B2"
   rebasing 4:212cb178bcbb "C" (tip)
 
 Even when the chain include missing node
 
   $ hg up --hidden 'desc(B0)'
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo D > D
   $ hg add D
   $ hg commit -m D
   $ hg --hidden strip -r 'desc(B1)'
   saved backup bundle to $TESTTMP/obsskip/.hg/strip-backup/86f6414ccda7-b1c452ee-backup.hg (glob)
 
   $ hg rebase -d 'desc(B2)'
   note: not rebasing 1:a8b11f55fb19 "B0", already in destination as 2:261e70097290 "B2"
   rebasing 5:1a79b7535141 "D" (tip)
   $ hg up 4
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "O" > O
   $ hg add O
   $ hg commit -m O
   $ echo "P" > P
   $ hg add P
   $ hg commit -m P
   $ hg log -G
   @  8:8d47583e023f P
   |
   o  7:360bbaa7d3ce O
   |
   | o  6:9c48361117de D
   | |
   o |  4:ff2c4d47b71d C
   |/
   o  2:261e70097290 B2
   |
   o  0:4a2df7238c3b A
   
   $ hg debugobsolete `hg log -r 7 -T '{node}\n'` --config experimental.evolution=all
   obsoleted 1 changesets
   $ hg rebase -d 6 -r "4::"
   rebasing 4:ff2c4d47b71d "C"
   note: not rebasing 7:360bbaa7d3ce "O", it has no successor
   rebasing 8:8d47583e023f "P" (tip)
 
 If all the changeset to be rebased are obsolete and present in the destination, we
 should display a friendly error message
 
   $ hg log -G
   @  10:121d9e3bc4c6 P
   |
   o  9:4be60e099a77 C
   |
   o  6:9c48361117de D
   |
   o  2:261e70097290 B2
   |
   o  0:4a2df7238c3b A
   
 
   $ hg up 9
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "non-relevant change" > nonrelevant
   $ hg add nonrelevant
   $ hg commit -m nonrelevant
   created new head
   $ hg debugobsolete `hg log -r 11 -T '{node}\n'` --config experimental.evolution=all
   obsoleted 1 changesets
   $ hg rebase -r . -d 10
   note: not rebasing 11:f44da1f4954c "nonrelevant" (tip), it has no successor
 
 If a rebase is going to create divergence, it should abort
 
   $ hg log -G
   @  11:f44da1f4954c nonrelevant
   |
   | o  10:121d9e3bc4c6 P
   |/
   o  9:4be60e099a77 C
   |
   o  6:9c48361117de D
   |
   o  2:261e70097290 B2
   |
   o  0:4a2df7238c3b A
   
 
   $ hg up 9
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "john" > doe
   $ hg add doe
   $ hg commit -m "john doe"
   created new head
   $ hg up 10
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "foo" > bar
   $ hg add bar
   $ hg commit --amend -m "10'"
   $ hg up 10 --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo "bar" > foo
   $ hg add foo
   $ hg commit -m "bar foo"
   $ hg log -G
   @  15:73568ab6879d bar foo
   |
   | o  14:77d874d096a2 10'
   | |
   | | o  12:3eb461388009 john doe
   | |/
   x |  10:121d9e3bc4c6 P
   |/
   o  9:4be60e099a77 C
   |
   o  6:9c48361117de D
   |
   o  2:261e70097290 B2
   |
   o  0:4a2df7238c3b A
   
   $ hg summary
   parent: 15:73568ab6879d tip (orphan)
    bar foo
   branch: default
   commit: (clean)
   update: 2 new changesets, 3 branch heads (merge)
   phases: 8 draft
   orphan: 1 changesets
   $ hg rebase -s 10 -d 12
   abort: this rebase will cause divergences from: 121d9e3bc4c6
   (to force the rebase please set experimental.allowdivergence=True)
   [255]
   $ hg log -G
   @  15:73568ab6879d bar foo
   |
   | o  14:77d874d096a2 10'
   | |
   | | o  12:3eb461388009 john doe
   | |/
   x |  10:121d9e3bc4c6 P
   |/
   o  9:4be60e099a77 C
   |
   o  6:9c48361117de D
   |
   o  2:261e70097290 B2
   |
   o  0:4a2df7238c3b A
   
 With experimental.allowdivergence=True, rebase can create divergence
 
   $ hg rebase -s 10 -d 12 --config experimental.allowdivergence=True
   rebasing 10:121d9e3bc4c6 "P"
   rebasing 15:73568ab6879d "bar foo" (tip)
   $ hg summary
   parent: 17:61bd55f69bc4 tip
    bar foo
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 8 draft
-  divergent: 2 changesets
+  content-divergent: 2 changesets
 
 rebase --continue + skipped rev because their successors are in destination
 we make a change in trunk and work on conflicting changes to make rebase abort.
 
   $ hg log -G -r 17::
   @  17:61bd55f69bc4 bar foo
   |
   ~
 
 Create the two changes in trunk
   $ printf "a" > willconflict
   $ hg add willconflict
   $ hg commit -m "willconflict first version"
 
   $ printf "dummy" > C
   $ hg commit -m "dummy change successor"
 
 Create the changes that we will rebase
   $ hg update -C 17 -q
   $ printf "b" > willconflict
   $ hg add willconflict
   $ hg commit -m "willconflict second version"
   created new head
   $ printf "dummy" > K
   $ hg add K
   $ hg commit -m "dummy change"
   $ printf "dummy" > L
   $ hg add L
   $ hg commit -m "dummy change"
   $ hg debugobsolete `hg log -r ".^" -T '{node}'` `hg log -r 19 -T '{node}'` --config experimental.evolution=all
   obsoleted 1 changesets
 
   $ hg log -G -r 17::
   @  22:7bdc8a87673d dummy change
   |
   x  21:8b31da3c4919 dummy change
   |
   o  20:b82fb57ea638 willconflict second version
   |
   | o  19:601db7a18f51 dummy change successor
   | |
   | o  18:357ddf1602d5 willconflict first version
   |/
   o  17:61bd55f69bc4 bar foo
   |
   ~
   $ hg rebase -r ".^^ + .^ + ." -d 19
   rebasing 20:b82fb57ea638 "willconflict second version"
   merging willconflict
   warning: conflicts while merging willconflict! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
   $ hg resolve --mark willconflict
   (no more unresolved files)
   continue: hg rebase --continue
   $ hg rebase --continue
   rebasing 20:b82fb57ea638 "willconflict second version"
   note: not rebasing 21:8b31da3c4919 "dummy change", already in destination as 19:601db7a18f51 "dummy change successor"
   rebasing 22:7bdc8a87673d "dummy change" (tip)
   $ cd ..
 
 Rebase merge where successor of one parent is equal to destination (issue5198)
 
   $ hg init p1-succ-is-dest
   $ cd p1-succ-is-dest
 
   $ hg debugdrawdag <<EOF
   >   F
   >  /|
   > E D B # replace: D -> B
   >  \|/
   >   A
   > EOF
 
   $ hg rebase -d B -s D
   note: not rebasing 2:b18e25de2cf5 "D" (D), already in destination as 1:112478962961 "B"
   rebasing 4:66f1a38021c9 "F" (F tip)
   $ hg log -G
   o    5:50e9d60b99c6 F
   |\
   | | x  4:66f1a38021c9 F
   | |/|
   | o |  3:7fb047a69f22 E
   | | |
   | | x  2:b18e25de2cf5 D
   | |/
   o |  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Rebase merge where successor of other parent is equal to destination
 
   $ hg init p2-succ-is-dest
   $ cd p2-succ-is-dest
 
   $ hg debugdrawdag <<EOF
   >   F
   >  /|
   > E D B # replace: E -> B
   >  \|/
   >   A
   > EOF
 
 BROKEN: Raises an exception
   $ hg rebase -d B -s E 2>&1 | grep AssertionError:
   AssertionError: no base found to rebase on (defineparents called wrong)
   $ hg log -G
   o    4:66f1a38021c9 F
   |\
   | x  3:7fb047a69f22 E
   | |
   o |  2:b18e25de2cf5 D
   |/
   | o  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Rebase merge where successor of one parent is ancestor of destination
 
   $ hg init p1-succ-in-dest
   $ cd p1-succ-in-dest
 
   $ hg debugdrawdag <<EOF
   >   F C
   >  /| |
   > E D B # replace: D -> B
   >  \|/
   >   A
   > EOF
 
   $ hg rebase -d C -s D
   note: not rebasing 2:b18e25de2cf5 "D" (D), already in destination as 1:112478962961 "B"
   rebasing 5:66f1a38021c9 "F" (F tip)
 BROKEN: not rebased on top of requested destination (C)
   $ hg log -G
   o    6:50e9d60b99c6 F
   |\
   | | x  5:66f1a38021c9 F
   | |/|
   +-----o  4:26805aba1e60 C
   | | |
   | o |  3:7fb047a69f22 E
   | | |
   | | x  2:b18e25de2cf5 D
   | |/
   o |  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Rebase merge where successor of other parent is ancestor of destination
 
   $ hg init p2-succ-in-dest
   $ cd p2-succ-in-dest
 
   $ hg debugdrawdag <<EOF
   >   F C
   >  /| |
   > E D B # replace: E -> B
   >  \|/
   >   A
   > EOF
 
 BROKEN: Raises an exception
   $ hg rebase -d C -s E 2>&1 | grep AssertionError:
   AssertionError: no base found to rebase on (defineparents called wrong)
   $ hg log -G
   o    5:66f1a38021c9 F
   |\
   | | o  4:26805aba1e60 C
   | | |
   | x |  3:7fb047a69f22 E
   | | |
   o | |  2:b18e25de2cf5 D
   |/ /
   | o  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Rebase merge where successor of one parent is ancestor of destination
 
   $ hg init p1-succ-in-dest-b
   $ cd p1-succ-in-dest-b
 
   $ hg debugdrawdag <<EOF
   >   F C
   >  /| |
   > E D B # replace: E -> B
   >  \|/
   >   A
   > EOF
 
   $ hg rebase -d C -b F
   rebasing 2:b18e25de2cf5 "D" (D)
   note: not rebasing 3:7fb047a69f22 "E" (E), already in destination as 1:112478962961 "B"
   rebasing 5:66f1a38021c9 "F" (F tip)
   $ hg log -G
   o  7:9ed45af61fa0 F
   |
   o  6:8f47515dda15 D
   |
   | x    5:66f1a38021c9 F
   | |\
   o | |  4:26805aba1e60 C
   | | |
   | | x  3:7fb047a69f22 E
   | | |
   | x |  2:b18e25de2cf5 D
   | |/
   o /  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Rebase merge where successor of other parent is ancestor of destination
 
   $ hg init p2-succ-in-dest-b
   $ cd p2-succ-in-dest-b
 
   $ hg debugdrawdag <<EOF
   >   F C
   >  /| |
   > E D B # replace: D -> B
   >  \|/
   >   A
   > EOF
 
   $ hg rebase -d C -b F
   note: not rebasing 2:b18e25de2cf5 "D" (D), already in destination as 1:112478962961 "B"
   rebasing 3:7fb047a69f22 "E" (E)
   rebasing 5:66f1a38021c9 "F" (F tip)
 BROKEN: This should have resulted in a rebased F with one parent, just like in
 the test case above
   $ hg log -G
   o    7:c1e6f26e339d F
   |\
   | o  6:533690786a86 E
   |/
   | x    5:66f1a38021c9 F
   | |\
   o | |  4:26805aba1e60 C
   | | |
   | | x  3:7fb047a69f22 E
   | | |
   | x |  2:b18e25de2cf5 D
   | |/
   o /  1:112478962961 B
   |/
   o  0:426bada5c675 A
   
   $ cd ..
 
 Test that bookmark is moved and working dir is updated when all changesets have
 equivalents in destination
   $ hg init rbsrepo && cd rbsrepo
   $ echo "[experimental]" > .hg/hgrc
   $ echo "evolution=all" >> .hg/hgrc
   $ echo "rebaseskipobsolete=on" >> .hg/hgrc
   $ echo root > root && hg ci -Am root
   adding root
   $ echo a > a && hg ci -Am a
   adding a
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b > b && hg ci -Am b
   adding b
   created new head
   $ hg rebase -r 2 -d 1
   rebasing 2:1e9a3c00cbe9 "b" (tip)
   $ hg log -r .  # working dir is at rev 3 (successor of 2)
   3:be1832deae9a b (no-eol)
   $ hg book -r 2 mybook --hidden  # rev 2 has a bookmark on it now
   $ hg up 2 && hg log -r .  # working dir is at rev 2 again
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   2:1e9a3c00cbe9 b (no-eol)
   $ hg rebase -r 2 -d 3 --config experimental.evolution.track-operation=1
   note: not rebasing 2:1e9a3c00cbe9 "b" (mybook), already in destination as 3:be1832deae9a "b"
 Check that working directory was updated to rev 3 although rev 2 was skipped
 during the rebase operation
   $ hg log -r .
   3:be1832deae9a b (no-eol)
 
 Check that bookmark was not moved to rev 3 if rev 2 was skipped during the
 rebase operation. This makes sense because if rev 2 has a successor, the
 operation generating that successor (ex. rebase) should be responsible for
 moving bookmarks. If the bookmark is on a precursor, like rev 2, that means the
 user manually moved it back. In that case we should not move it again.
   $ hg bookmarks
      mybook                    2:1e9a3c00cbe9
   $ hg debugobsolete --rev tip
   1e9a3c00cbe90d236ac05ef61efcc5e40b7412bc be1832deae9ac531caa7438b8dcf6055a122cd8e 0 (*) {'user': 'test'} (glob)