merge: allow smarter tool configuration

Add [merge-tool] hgrc section with:
 <tool>.executable = name or path (<tool>)
 <tool>.args = args with $local/base/other/output ($local $base $other)
 <tool>.priority = priority (default 0)
 <tool>.binary = handles binary (False)
 <tool>.symlink = handles symlinks (False)
 <tool>.checkconflict = check for conflict markers (False)
 <tool>.premerge = try internal simplemerge (True if not binary or symlink)

Four built-in tools: internal:{merge,local,other,fail}

Add [merge-patterns] section of the form:
 <pattern> = <tool>

Priority of settings is:
 HGMERGE
 merge-patterns
 ui:merge
 merge-tools by priority
 hgmerge, if it can be found

Changes:
 unsuccessful merges leave .orig files

mercurial/commands.py

@@ -1,3114 +1,3080 b''
 # commands.py - command processing for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import *
 from i18n import _
 import os, re, sys, urllib
 import hg, util, revlog, bundlerepo, extensions
 import difflib, patch, time, help, mdiff, tempfile
 import errno, version, socket
 import archival, changegroup, cmdutil, hgweb.server, sshserver, hbisect
 
 # Commands start here, listed alphabetically
 
 def add(ui, repo, *pats, **opts):
     """add the specified files on the next commit
 
     Schedule files to be version controlled and added to the repository.
 
     The files will be added to the repository at the next commit. To
     undo an add before that, see hg revert.
 
     If no names are given, add all files in the repository.
     """
 
     rejected = None
     exacts = {}
     names = []
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts,
                                              badmatch=util.always):
         if exact:
             if ui.verbose:
                 ui.status(_('adding %s\n') % rel)
             names.append(abs)
             exacts[abs] = 1
         elif abs not in repo.dirstate:
             ui.status(_('adding %s\n') % rel)
             names.append(abs)
     if not opts.get('dry_run'):
         rejected = repo.add(names)
         rejected = [p for p in rejected if p in exacts]
     return rejected and 1 or 0
 
 def addremove(ui, repo, *pats, **opts):
     """add all new files, delete all missing files
 
     Add all new files and remove all missing files from the repository.
 
     New files are ignored if they match any of the patterns in .hgignore. As
     with add, these changes take effect at the next commit.
 
     Use the -s option to detect renamed files.  With a parameter > 0,
     this compares every removed file with every added file and records
     those similar enough as renames.  This option takes a percentage
     between 0 (disabled) and 100 (files must be identical) as its
     parameter.  Detecting renamed files this way can be expensive.
     """
     try:
         sim = float(opts.get('similarity') or 0)
     except ValueError:
         raise util.Abort(_('similarity must be a number'))
     if sim < 0 or sim > 100:
         raise util.Abort(_('similarity must be between 0 and 100'))
     return cmdutil.addremove(repo, pats, opts, similarity=sim/100.)
 
 def annotate(ui, repo, *pats, **opts):
     """show changeset information per file line
 
     List changes in files, showing the revision id responsible for each line
 
     This command is useful to discover who did a change or when a change took
     place.
 
     Without the -a option, annotate will avoid processing files it
     detects as binary. With -a, annotate will generate an annotation
     anyway, probably with undesirable results.
     """
     getdate = util.cachefunc(lambda x: util.datestr(x[0].date()))
 
     if not pats:
         raise util.Abort(_('at least one file name or pattern required'))
 
     opmap = [('user', lambda x: ui.shortuser(x[0].user())),
              ('number', lambda x: str(x[0].rev())),
              ('changeset', lambda x: short(x[0].node())),
              ('date', getdate),
              ('follow', lambda x: x[0].path()),
             ]
 
     if (not opts['user'] and not opts['changeset'] and not opts['date']
         and not opts['follow']):
         opts['number'] = 1
 
     linenumber = opts.get('line_number') is not None
     if (linenumber and (not opts['changeset']) and (not opts['number'])):
         raise util.Abort(_('at least one of -n/-c is required for -l'))
 
     funcmap = [func for op, func in opmap if opts.get(op)]
     if linenumber:
         lastfunc = funcmap[-1]
         funcmap[-1] = lambda x: "%s:%s" % (lastfunc(x), x[1])
 
     ctx = repo.changectx(opts['rev'])
 
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts,
                                              node=ctx.node()):
         fctx = ctx.filectx(abs)
         if not opts['text'] and util.binary(fctx.data()):
             ui.write(_("%s: binary file\n") % ((pats and rel) or abs))
             continue
 
         lines = fctx.annotate(follow=opts.get('follow'),
                               linenumber=linenumber)
         pieces = []
 
         for f in funcmap:
             l = [f(n) for n, dummy in lines]
             if l:
                 m = max(map(len, l))
                 pieces.append(["%*s" % (m, x) for x in l])
 
         if pieces:
             for p, l in zip(zip(*pieces), lines):
                 ui.write("%s: %s" % (" ".join(p), l[1]))
 
 def archive(ui, repo, dest, **opts):
     '''create unversioned archive of a repository revision
 
     By default, the revision used is the parent of the working
     directory; use "-r" to specify a different revision.
 
     To specify the type of archive to create, use "-t".  Valid
     types are:
 
     "files" (default): a directory full of files
     "tar": tar archive, uncompressed
     "tbz2": tar archive, compressed using bzip2
     "tgz": tar archive, compressed using gzip
     "uzip": zip archive, uncompressed
     "zip": zip archive, compressed using deflate
 
     The exact name of the destination archive or directory is given
     using a format string; see "hg help export" for details.
 
     Each member added to an archive file has a directory prefix
     prepended.  Use "-p" to specify a format string for the prefix.
     The default is the basename of the archive, with suffixes removed.
     '''
 
     ctx = repo.changectx(opts['rev'])
     if not ctx:
         raise util.Abort(_('repository has no revisions'))
     node = ctx.node()
     dest = cmdutil.make_filename(repo, dest, node)
     if os.path.realpath(dest) == repo.root:
         raise util.Abort(_('repository root cannot be destination'))
     dummy, matchfn, dummy = cmdutil.matchpats(repo, [], opts)
     kind = opts.get('type') or 'files'
     prefix = opts['prefix']
     if dest == '-':
         if kind == 'files':
             raise util.Abort(_('cannot archive plain files to stdout'))
         dest = sys.stdout
         if not prefix: prefix = os.path.basename(repo.root) + '-%h'
     prefix = cmdutil.make_filename(repo, prefix, node)
     archival.archive(repo, dest, node, kind, not opts['no_decode'],
                      matchfn, prefix)
 
 def backout(ui, repo, node=None, rev=None, **opts):
     '''reverse effect of earlier changeset
 
     Commit the backed out changes as a new changeset.  The new
     changeset is a child of the backed out changeset.
 
     If you back out a changeset other than the tip, a new head is
     created.  This head is the parent of the working directory.  If
     you back out an old changeset, your working directory will appear
     old after the backout.  You should merge the backout changeset
     with another head.
 
     The --merge option remembers the parent of the working directory
     before starting the backout, then merges the new head with that
     changeset afterwards.  This saves you from doing the merge by
     hand.  The result of this merge is not committed, as for a normal
     merge.'''
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if not rev:
         raise util.Abort(_("please specify a revision to backout"))
 
     cmdutil.bail_if_changed(repo)
     node = repo.lookup(rev)
 
     op1, op2 = repo.dirstate.parents()
     a = repo.changelog.ancestor(op1, node)
     if a != node:
         raise util.Abort(_('cannot back out change on a different branch'))
 
     p1, p2 = repo.changelog.parents(node)
     if p1 == nullid:
         raise util.Abort(_('cannot back out a change with no parents'))
     if p2 != nullid:
         if not opts['parent']:
             raise util.Abort(_('cannot back out a merge changeset without '
                                '--parent'))
         p = repo.lookup(opts['parent'])
         if p not in (p1, p2):
             raise util.Abort(_('%s is not a parent of %s') %
                              (short(p), short(node)))
         parent = p
     else:
         if opts['parent']:
             raise util.Abort(_('cannot use --parent on non-merge changeset'))
         parent = p1
 
     hg.clean(repo, node, show_stats=False)
     revert_opts = opts.copy()
     revert_opts['date'] = None
     revert_opts['all'] = True
     revert_opts['rev'] = hex(parent)
     revert(ui, repo, **revert_opts)
     commit_opts = opts.copy()
     commit_opts['addremove'] = False
     if not commit_opts['message'] and not commit_opts['logfile']:
         commit_opts['message'] = _("Backed out changeset %s") % (short(node))
         commit_opts['force_editor'] = True
     commit(ui, repo, **commit_opts)
     def nice(node):
         return '%d:%s' % (repo.changelog.rev(node), short(node))
     ui.status(_('changeset %s backs out changeset %s\n') %
               (nice(repo.changelog.tip()), nice(node)))
     if op1 != node:
         if opts['merge']:
             ui.status(_('merging with changeset %s\n') % nice(op1))
             hg.merge(repo, hex(op1))
         else:
             ui.status(_('the backout changeset is a new head - '
                         'do not forget to merge\n'))
             ui.status(_('(use "backout --merge" '
                         'if you want to auto-merge)\n'))
 
 def bisect(ui, repo, rev=None, extra=None,
                reset=None, good=None, bad=None, skip=None, noupdate=None):
     """subdivision search of changesets
 
     This command helps to find changesets which introduce problems.
     To use, mark the earliest changeset you know exhibits the problem
     as bad, then mark the latest changeset which is free from the
     problem as good. Bisect will update your working directory to a
     revision for testing. Once you have performed tests, mark the
     working directory as bad or good and bisect will either update to
     another candidate changeset or announce that it has found the bad
     revision.
     """
     # backward compatibility
     if rev in "good bad reset init".split():
         ui.warn(_("(use of 'hg bisect <cmd>' is deprecated)\n"))
         cmd, rev, extra = rev, extra, None
         if cmd == "good":
             good = True
         elif cmd == "bad":
             bad = True
         else:
             reset = True
     elif extra or good + bad + skip + reset > 1:
         raise util.Abort("Incompatible arguments")
 
     if reset:
         p = repo.join("bisect.state")
         if os.path.exists(p):
             os.unlink(p)
         return
 
     # load state
     state = {'good': [], 'bad': [], 'skip': []}
     if os.path.exists(repo.join("bisect.state")):
         for l in repo.opener("bisect.state"):
             kind, node = l[:-1].split()
             node = repo.lookup(node)
             if kind not in state:
                 raise util.Abort(_("unknown bisect kind %s") % kind)
             state[kind].append(node)
 
     # update state
     node = repo.lookup(rev or '.')
     if good:
         state['good'].append(node)
     elif bad:
         state['bad'].append(node)
     elif skip:
         state['skip'].append(node)
 
     # save state
     f = repo.opener("bisect.state", "w", atomictemp=True)
     wlock = repo.wlock()
     try:
         for kind in state:
             for node in state[kind]:
                 f.write("%s %s\n" % (kind, hg.hex(node)))
         f.rename()
     finally:
         del wlock
 
     if not state['good'] or not state['bad']:
         return
 
     # actually bisect
     node, changesets, good = hbisect.bisect(repo.changelog, state)
     if changesets == 0:
         ui.write(_("The first %s revision is:\n") % (good and "good" or "bad"))
         displayer = cmdutil.show_changeset(ui, repo, {})
         displayer.show(changenode=node)
     elif node is not None:
         # compute the approximate number of remaining tests
         tests, size = 0, 2
         while size <= changesets:
             tests, size = tests + 1, size * 2
         rev = repo.changelog.rev(node)
         ui.write(_("Testing changeset %s:%s "
                    "(%s changesets remaining, ~%s tests)\n")
                  % (rev, hg.short(node), changesets, tests))
         if not noupdate:
             cmdutil.bail_if_changed(repo)
             return hg.clean(repo, node)
 
 def branch(ui, repo, label=None, **opts):
     """set or show the current branch name
 
     With no argument, show the current branch name. With one argument,
     set the working directory branch name (the branch does not exist in
     the repository until the next commit).
 
     Unless --force is specified, branch will not let you set a
     branch name that shadows an existing branch.
 
     Use the command 'hg update' to switch to an existing branch.
     """
 
     if label:
         if not opts.get('force') and label in repo.branchtags():
             if label not in [p.branch() for p in repo.workingctx().parents()]:
                 raise util.Abort(_('a branch of the same name already exists'
                                    ' (use --force to override)'))
         repo.dirstate.setbranch(util.fromlocal(label))
         ui.status(_('marked working directory as branch %s\n') % label)
     else:
         ui.write("%s\n" % util.tolocal(repo.dirstate.branch()))
 
 def branches(ui, repo, active=False):
     """list repository named branches
 
     List the repository's named branches, indicating which ones are
     inactive.  If active is specified, only show active branches.
 
     A branch is considered active if it contains unmerged heads.
 
     Use the command 'hg update' to switch to an existing branch.
     """
     b = repo.branchtags()
     heads = dict.fromkeys(repo.heads(), 1)
     l = [((n in heads), repo.changelog.rev(n), n, t) for t, n in b.items()]
     l.sort()
     l.reverse()
     for ishead, r, n, t in l:
         if active and not ishead:
             # If we're only displaying active branches, abort the loop on
             # encountering the first inactive head
             break
         else:
             hexfunc = ui.debugflag and hex or short
             if ui.quiet:
                 ui.write("%s\n" % t)
             else:
                 spaces = " " * (30 - util.locallen(t))
                 # The code only gets here if inactive branches are being
                 # displayed or the branch is active.
                 isinactive = ((not ishead) and " (inactive)") or ''
                 ui.write("%s%s %s:%s%s\n" % (t, spaces, r, hexfunc(n), isinactive))
 
 def bundle(ui, repo, fname, dest=None, **opts):
     """create a changegroup file
 
     Generate a compressed changegroup file collecting changesets not
     found in the other repository.
 
     If no destination repository is specified the destination is assumed
     to have all the nodes specified by one or more --base parameters.
     To create a bundle containing all changesets, use --base null.
 
     The bundle file can then be transferred using conventional means and
     applied to another repository with the unbundle or pull command.
     This is useful when direct push and pull are not available or when
     exporting an entire repository is undesirable.
 
     Applying bundles preserves all changeset contents including
     permissions, copy/rename information, and revision history.
     """
     revs = opts.get('rev') or None
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     base = opts.get('base')
     if base:
         if dest:
             raise util.Abort(_("--base is incompatible with specifiying "
                                "a destination"))
         base = [repo.lookup(rev) for rev in base]
         # create the right base
         # XXX: nodesbetween / changegroup* should be "fixed" instead
         o = []
         has = {nullid: None}
         for n in base:
             has.update(repo.changelog.reachable(n))
         if revs:
             visit = list(revs)
         else:
             visit = repo.changelog.heads()
         seen = {}
         while visit:
             n = visit.pop(0)
             parents = [p for p in repo.changelog.parents(n) if p not in has]
             if len(parents) == 0:
                 o.insert(0, n)
             else:
                 for p in parents:
                     if p not in seen:
                         seen[p] = 1
                         visit.append(p)
     else:
         cmdutil.setremoteconfig(ui, opts)
         dest, revs, checkout = hg.parseurl(
             ui.expandpath(dest or 'default-push', dest or 'default'), revs)
         other = hg.repository(ui, dest)
         o = repo.findoutgoing(other, force=opts['force'])
 
     if revs:
         cg = repo.changegroupsubset(o, revs, 'bundle')
     else:
         cg = repo.changegroup(o, 'bundle')
     changegroup.writebundle(cg, fname, "HG10BZ")
 
 def cat(ui, repo, file1, *pats, **opts):
     """output the current or given revision of files
 
     Print the specified files as they were at the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     Output may be to a file, in which case the name of the file is
     given using a format string.  The formatting rules are the same as
     for the export command, with the following additions:
 
     %s   basename of file being printed
     %d   dirname of file being printed, or '.' if in repo root
     %p   root-relative path name of file being printed
     """
     ctx = repo.changectx(opts['rev'])
     err = 1
     for src, abs, rel, exact in cmdutil.walk(repo, (file1,) + pats, opts,
                                              ctx.node()):
         fp = cmdutil.make_file(repo, opts['output'], ctx.node(), pathname=abs)
         fp.write(ctx.filectx(abs).data())
         err = 0
     return err
 
 def clone(ui, source, dest=None, **opts):
     """make a copy of an existing repository
 
     Create a copy of an existing repository in a new directory.
 
     If no destination directory name is specified, it defaults to the
     basename of the source.
 
     The location of the source is added to the new repository's
     .hg/hgrc file, as the default to be used for future pulls.
 
     For efficiency, hardlinks are used for cloning whenever the source
     and destination are on the same filesystem (note this applies only
     to the repository data, not to the checked out files).  Some
     filesystems, such as AFS, implement hardlinking incorrectly, but
     do not report errors.  In these cases, use the --pull option to
     avoid hardlinking.
 
     You can safely clone repositories and checked out files using full
     hardlinks with
 
       $ cp -al REPO REPOCLONE
 
     which is the fastest way to clone. However, the operation is not
     atomic (making sure REPO is not modified during the operation is
     up to you) and you have to make sure your editor breaks hardlinks
     (Emacs and most Linux Kernel tools do so).
 
     If you use the -r option to clone up to a specific revision, no
     subsequent revisions will be present in the cloned repository.
     This option implies --pull, even on local repositories.
 
     See pull for valid source format details.
 
     It is possible to specify an ssh:// URL as the destination, but no
     .hg/hgrc and working directory will be created on the remote side.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.clone(ui, source, dest,
              pull=opts['pull'],
              stream=opts['uncompressed'],
              rev=opts['rev'],
              update=not opts['noupdate'])
 
 def commit(ui, repo, *pats, **opts):
     """commit the specified files or all outstanding changes
 
     Commit changes to the given files into the repository.
 
     If a list of files is omitted, all changes reported by "hg status"
     will be committed.
 
     If no commit message is specified, the configured editor is started to
     enter a message.
     """
     def commitfunc(ui, repo, files, message, match, opts):
         return repo.commit(files, message, opts['user'], opts['date'], match,
                            force_editor=opts.get('force_editor'))
     cmdutil.commit(ui, repo, commitfunc, pats, opts)
 
 def copy(ui, repo, *pats, **opts):
     """mark files as copied for the next commit
 
     Mark dest as having copies of source files.  If dest is a
     directory, copies are put in that directory.  If dest is a file,
     there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory.  If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a copy
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts)
     finally:
         del wlock
 
 def debugancestor(ui, index, rev1, rev2):
     """find the ancestor revision of two revisions in a given index"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), index)
     a = r.ancestor(r.lookup(rev1), r.lookup(rev2))
     ui.write("%d:%s\n" % (r.rev(a), hex(a)))
 
 def debugcomplete(ui, cmd='', **opts):
     """returns the completion list associated with the given command"""
 
     if opts['options']:
         options = []
         otables = [globalopts]
         if cmd:
             aliases, entry = cmdutil.findcmd(ui, cmd, table)
             otables.append(entry[1])
         for t in otables:
             for o in t:
                 if o[0]:
                     options.append('-%s' % o[0])
                 options.append('--%s' % o[1])
         ui.write("%s\n" % "\n".join(options))
         return
 
     clist = cmdutil.findpossible(ui, cmd, table).keys()
     clist.sort()
     ui.write("%s\n" % "\n".join(clist))
 
 def debugfsinfo(ui, path = "."):
     file('.debugfsinfo', 'w').write('')
     ui.write('exec: %s\n' % (util.checkexec(path) and 'yes' or 'no'))
     ui.write('symlink: %s\n' % (util.checklink(path) and 'yes' or 'no'))
     ui.write('case-sensitive: %s\n' % (util.checkfolding('.debugfsinfo')
                                 and 'yes' or 'no'))
     os.unlink('.debugfsinfo')
 
 def debugrebuildstate(ui, repo, rev=""):
     """rebuild the dirstate as it would look like for the given revision"""
     if rev == "":
         rev = repo.changelog.tip()
     ctx = repo.changectx(rev)
     files = ctx.manifest()
     wlock = repo.wlock()
     try:
         repo.dirstate.rebuild(rev, files)
     finally:
         del wlock
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     m1 = repo.changectx(parent1).manifest()
     m2 = repo.changectx(parent2).manifest()
     errors = 0
     for f in repo.dirstate:
         state = repo.dirstate[f]
         if state in "nr" and f not in m1:
             ui.warn(_("%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in "a" and f in m1:
             ui.warn(_("%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in "m" and f not in m1 and f not in m2:
             ui.warn(_("%s in state %s, but not in either manifest\n") %
                     (f, state))
             errors += 1
     for f in m1:
         state = repo.dirstate[f]
         if state not in "nrm":
             ui.warn(_("%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         error = _(".hg/dirstate inconsistent with current parent's manifest")
         raise util.Abort(error)
 
 def showconfig(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
     With no args, print names and values of all config items.
 
     With one arg of the form section.name, print just the value of
     that config item.
 
     With multiple args, print names and values of all config items
     with matching section names."""
 
     untrusted = bool(opts.get('untrusted'))
     if values:
         if len([v for v in values if '.' in v]) > 1:
             raise util.Abort(_('only one config item permitted'))
     for section, name, value in ui.walkconfig(untrusted=untrusted):
         sectname = section + '.' + name
         if values:
             for v in values:
                 if v == section:
                     ui.write('%s=%s\n' % (sectname, value))
                 elif v == sectname:
                     ui.write(value, '\n')
         else:
             ui.write('%s=%s\n' % (sectname, value))
 
 def debugsetparents(ui, repo, rev1, rev2=None):
     """manually set the parents of the current working directory
 
     This is useful for writing repository conversion tools, but should
     be used with care.
     """
 
     if not rev2:
         rev2 = hex(nullid)
 
     wlock = repo.wlock()
     try:
         repo.dirstate.setparents(repo.lookup(rev1), repo.lookup(rev2))
     finally:
         del wlock
 
 def debugstate(ui, repo):
     """show the contents of the current dirstate"""
     k = repo.dirstate._map.items()
     k.sort()
     for file_, ent in k:
         if ent[3] == -1:
             # Pad or slice to locale representation
             locale_len = len(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(0)))
             timestr = 'unset'
             timestr = timestr[:locale_len] + ' '*(locale_len - len(timestr))
         else:
             timestr = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(ent[3]))
         if ent[1] & 020000:
             mode = 'lnk'
         else:
             mode = '%3o' % (ent[1] & 0777)
         ui.write("%c %s %10d %s %s\n" % (ent[0], mode, ent[2], timestr, file_))
     for f in repo.dirstate.copies():
         ui.write(_("copy: %s -> %s\n") % (repo.dirstate.copied(f), f))
 
 def debugdata(ui, file_, rev):
     """dump the contents of a data file revision"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_[:-2] + ".i")
     try:
         ui.write(r.revision(r.lookup(rev)))
     except KeyError:
         raise util.Abort(_('invalid revision identifier %s') % rev)
 
 def debugdate(ui, date, range=None, **opts):
     """parse and display a date"""
     if opts["extended"]:
         d = util.parsedate(date, util.extendeddateformats)
     else:
         d = util.parsedate(date)
     ui.write("internal: %s %s\n" % d)
     ui.write("standard: %s\n" % util.datestr(d))
     if range:
         m = util.matchdate(range)
         ui.write("match: %s\n" % m(d[0]))
 
 def debugindex(ui, file_):
     """dump the contents of an index file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("   rev    offset  length   base linkrev" +
              " nodeid       p1           p2\n")
     for i in xrange(r.count()):
         node = r.node(i)
         try:
             pp = r.parents(node)
         except:
             pp = [nullid, nullid]
         ui.write("% 6d % 9d % 7d % 6d % 7d %s %s %s\n" % (
                 i, r.start(i), r.length(i), r.base(i), r.linkrev(node),
             short(node), short(pp[0]), short(pp[1])))
 
 def debugindexdot(ui, file_):
     """dump an index DAG as a .dot file"""
     r = revlog.revlog(util.opener(os.getcwd(), audit=False), file_)
     ui.write("digraph G {\n")
     for i in xrange(r.count()):
         node = r.node(i)
         pp = r.parents(node)
         ui.write("\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write("}\n")
 
 def debuginstall(ui):
     '''test Mercurial installation'''
 
     def writetemp(contents):
         (fd, name) = tempfile.mkstemp(prefix="hg-debuginstall-")
         f = os.fdopen(fd, "wb")
         f.write(contents)
         f.close()
         return name
 
     problems = 0
 
     # encoding
     ui.status(_("Checking encoding (%s)...\n") % util._encoding)
     try:
         util.fromlocal("test")
     except util.Abort, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (check that your locale is properly set)\n"))
         problems += 1
 
     # compiled modules
     ui.status(_("Checking extensions...\n"))
     try:
         import bdiff, mpatch, base85
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" One or more extensions could not be found"))
         ui.write(_(" (check that you compiled the extensions)\n"))
         problems += 1
 
     # templates
     ui.status(_("Checking templates...\n"))
     try:
         import templater
         t = templater.templater(templater.templatepath("map-cmdline.default"))
     except Exception, inst:
         ui.write(" %s\n" % inst)
         ui.write(_(" (templates seem to have been installed incorrectly)\n"))
         problems += 1
 
     # patch
     ui.status(_("Checking patch...\n"))
     patchproblems = 0
     a = "1\n2\n3\n4\n"
     b = "1\n2\n3\ninsert\n4\n"
     fa = writetemp(a)
     d = mdiff.unidiff(a, None, b, None, os.path.basename(fa),
         os.path.basename(fa))
     fd = writetemp(d)
 
     files = {}
     try:
         patch.patch(fd, ui, cwd=os.path.dirname(fa), files=files)
     except util.Abort, e:
         ui.write(_(" patch call failed:\n"))
         ui.write(" " + str(e) + "\n")
         patchproblems += 1
     else:
         if list(files) != [os.path.basename(fa)]:
             ui.write(_(" unexpected patch output!\n"))
             patchproblems += 1
         a = file(fa).read()
         if a != b:
             ui.write(_(" patch test failed!\n"))
             patchproblems += 1
 
     if patchproblems:
         if ui.config('ui', 'patch'):
             ui.write(_(" (Current patch tool may be incompatible with patch,"
                        " or misconfigured. Please check your .hgrc file)\n"))
         else:
             ui.write(_(" Internal patcher failure, please report this error"
                        " to http://www.selenic.com/mercurial/bts\n"))
     problems += patchproblems
 
     os.unlink(fa)
     os.unlink(fd)
 
-    # merge helper
-    ui.status(_("Checking merge helper...\n"))
-    cmd = (os.environ.get("HGMERGE") or ui.config("ui", "merge")
-           or "hgmerge")
-    cmdpath = util.find_exe(cmd) or util.find_exe(cmd.split()[0])
-    if not cmdpath:
-        if cmd == 'hgmerge':
-            ui.write(_(" No merge helper set and can't find default"
-                       " hgmerge script in PATH\n"))
-            ui.write(_(" (specify a merge helper in your .hgrc file)\n"))
-        else:
-            ui.write(_(" Can't find merge helper '%s' in PATH\n") % cmd)
-            ui.write(_(" (specify a merge helper in your .hgrc file)\n"))
-            problems += 1
-    else:
-        # actually attempt a patch here
-        fa = writetemp("1\n2\n3\n4\n")
-        fl = writetemp("1\n2\n3\ninsert\n4\n")
-        fr = writetemp("begin\n1\n2\n3\n4\n")
-        r = util.system('%s "%s" "%s" "%s"' % (cmd, fl, fa, fr))
-        if r:
-            ui.write(_(" Got unexpected merge error %d!\n") % r)
-            problems += 1
-        m = file(fl).read()
-        if m != "begin\n1\n2\n3\ninsert\n4\n":
-            ui.write(_(" Got unexpected merge results!\n"))
-            ui.write(_(" (your merge helper may have the"
-                       " wrong argument order)\n"))
-            ui.write(_(" Result: %r\n") % m)
-            problems += 1
-        os.unlink(fa)
-        os.unlink(fl)
-        os.unlink(fr)
-
     # editor
     ui.status(_("Checking commit editor...\n"))
     editor = ui.geteditor()
     cmdpath = util.find_exe(editor) or util.find_exe(editor.split()[0])
     if not cmdpath:
         if editor == 'vi':
             ui.write(_(" No commit editor set and can't find vi in PATH\n"))
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
         else:
             ui.write(_(" Can't find editor '%s' in PATH\n") % editor)
             ui.write(_(" (specify a commit editor in your .hgrc file)\n"))
             problems += 1
 
     # check username
     ui.status(_("Checking username...\n"))
     user = os.environ.get("HGUSER")
     if user is None:
         user = ui.config("ui", "username")
     if user is None:
         user = os.environ.get("EMAIL")
     if not user:
         ui.warn(" ")
         ui.username()
         ui.write(_(" (specify a username in your .hgrc file)\n"))
 
     if not problems:
         ui.status(_("No problems detected\n"))
     else:
         ui.write(_("%s problems detected,"
                    " please check your install!\n") % problems)
 
     return problems
 
 def debugrename(ui, repo, file1, *pats, **opts):
     """dump rename information"""
 
     ctx = repo.changectx(opts.get('rev', 'tip'))
     for src, abs, rel, exact in cmdutil.walk(repo, (file1,) + pats, opts,
                                              ctx.node()):
         fctx = ctx.filectx(abs)
         m = fctx.filelog().renamed(fctx.filenode())
         if m:
             ui.write(_("%s renamed from %s:%s\n") % (rel, m[0], hex(m[1])))
         else:
             ui.write(_("%s not renamed\n") % rel)
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     items = list(cmdutil.walk(repo, pats, opts))
     if not items:
         return
     fmt = '%%s  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for (src, abs, rel, exact) in items]),
         max([len(rel) for (src, abs, rel, exact) in items]))
     for src, abs, rel, exact in items:
         line = fmt % (src, abs, rel, exact and 'exact' or '')
         ui.write("%s\n" % line.rstrip())
 
 def diff(ui, repo, *pats, **opts):
     """diff repository (or selected files)
 
     Show differences between revisions for the specified files.
 
     Differences between files are shown using the unified diff format.
 
     NOTE: diff may generate unexpected results for merges, as it will
     default to comparing against the working directory's first parent
     changeset if no revisions are specified.
 
     When two revision arguments are given, then changes are shown
     between those revisions. If only one revision is specified then
     that revision is compared to the working directory, and, when no
     revisions are specified, the working directory files are compared
     to its parent.
 
     Without the -a option, diff will avoid generating diffs of files
     it detects as binary. With -a, diff will generate a diff anyway,
     probably with undesirable results.
     """
     node1, node2 = cmdutil.revpair(repo, opts['rev'])
 
     fns, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
 
     patch.diff(repo, node1, node2, fns, match=matchfn,
                opts=patch.diffopts(ui, opts))
 
 def export(ui, repo, *changesets, **opts):
     """dump the header and diffs for one or more changesets
 
     Print the changeset header and diffs for one or more revisions.
 
     The information shown in the changeset header is: author,
     changeset hash, parent(s) and commit comment.
 
     NOTE: export may generate unexpected diff output for merge changesets,
     as it will compare the merge changeset against its first parent only.
 
     Output may be to a file, in which case the name of the file is
     given using a format string.  The formatting rules are as follows:
 
     %%   literal "%" character
     %H   changeset hash (40 bytes of hexadecimal)
     %N   number of patches being generated
     %R   changeset revision number
     %b   basename of the exporting repository
     %h   short-form changeset hash (12 bytes of hexadecimal)
     %n   zero-padded sequence number, starting at 1
     %r   zero-padded changeset revision number
 
     Without the -a option, export will avoid generating diffs of files
     it detects as binary. With -a, export will generate a diff anyway,
     probably with undesirable results.
 
     With the --switch-parent option, the diff will be against the second
     parent. It can be useful to review a merge.
     """
     if not changesets:
         raise util.Abort(_("export requires at least one changeset"))
     revs = cmdutil.revrange(repo, changesets)
     if len(revs) > 1:
         ui.note(_('exporting patches:\n'))
     else:
         ui.note(_('exporting patch:\n'))
     patch.export(repo, revs, template=opts['output'],
                  switch_parent=opts['switch_parent'],
                  opts=patch.diffopts(ui, opts))
 
 def grep(ui, repo, pattern, *pats, **opts):
     """search for a pattern in specified files and revisions
 
     Search revisions of files for a regular expression.
 
     This command behaves differently than Unix grep.  It only accepts
     Python/Perl regexps.  It searches repository history, not the
     working directory.  It always prints the revision number in which
     a match appears.
 
     By default, grep only prints output for the first revision of a
     file in which it finds a match.  To get it to print every revision
     that contains a change in match status ("-" for a match that
     becomes a non-match, or "+" for a non-match that becomes a match),
     use the --all flag.
     """
     reflags = 0
     if opts['ignore_case']:
         reflags |= re.I
     try:
         regexp = re.compile(pattern, reflags)
     except Exception, inst:
         ui.warn(_("grep: invalid match pattern: %s!\n") % inst)
         return None
     sep, eol = ':', '\n'
     if opts['print0']:
         sep = eol = '\0'
 
     fcache = {}
     def getfile(fn):
         if fn not in fcache:
             fcache[fn] = repo.file(fn)
         return fcache[fn]
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while True:
             match = regexp.search(body, begin)
             if not match:
                 break
             mstart, mend = match.span()
             linenum += body.count('\n', begin, mstart) + 1
             lstart = body.rfind('\n', begin, mstart) + 1 or begin
             lend = body.find('\n', mend)
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
             begin = lend + 1
 
     class linestate(object):
         def __init__(self, line, linenum, colstart, colend):
             self.line = line
             self.linenum = linenum
             self.colstart = colstart
             self.colend = colend
 
         def __eq__(self, other):
             return self.line == other.line
 
     matches = {}
     copies = {}
     def grepbody(fn, rev, body):
         matches[rev].setdefault(fn, [])
         m = matches[rev][fn]
         for lnum, cstart, cend, line in matchlines(body):
             s = linestate(line, lnum, cstart, cend)
             m.append(s)
 
     def difflinestates(a, b):
         sm = difflib.SequenceMatcher(None, a, b)
         for tag, alo, ahi, blo, bhi in sm.get_opcodes():
             if tag == 'insert':
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
             elif tag == 'delete':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
             elif tag == 'replace':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
 
     prev = {}
     def display(fn, rev, states, prevstates):
         found = False
         filerevmatches = {}
         r = prev.get(fn, -1)
         if opts['all']:
             iter = difflinestates(states, prevstates)
         else:
             iter = [('', l) for l in prevstates]
         for change, l in iter:
             cols = [fn, str(r)]
             if opts['line_number']:
                 cols.append(str(l.linenum))
             if opts['all']:
                 cols.append(change)
             if opts['user']:
                 cols.append(ui.shortuser(get(r)[1]))
             if opts['files_with_matches']:
                 c = (fn, r)
                 if c in filerevmatches:
                     continue
                 filerevmatches[c] = 1
             else:
                 cols.append(l.line)
             ui.write(sep.join(cols), eol)
             found = True
         return found
 
     fstate = {}
     skip = {}
     get = util.cachefunc(lambda r: repo.changectx(r).changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
     found = False
     follow = opts.get('follow')
     for st, rev, fns in changeiter:
         if st == 'window':
             matches.clear()
         elif st == 'add':
             mf = repo.changectx(rev).manifest()
             matches[rev] = {}
             for fn in fns:
                 if fn in skip:
                     continue
                 try:
                     grepbody(fn, rev, getfile(fn).read(mf[fn]))
                     fstate.setdefault(fn, [])
                     if follow:
                         copied = getfile(fn).renamed(mf[fn])
                         if copied:
                             copies.setdefault(rev, {})[fn] = copied[0]
                 except KeyError:
                     pass
         elif st == 'iter':
             states = matches[rev].items()
             states.sort()
             for fn, m in states:
                 copy = copies.get(rev, {}).get(fn)
                 if fn in skip:
                     if copy:
                         skip[copy] = True
                     continue
                 if fn in prev or fstate[fn]:
                     r = display(fn, rev, m, fstate[fn])
                     found = found or r
                     if r and not opts['all']:
                         skip[fn] = True
                         if copy:
                             skip[copy] = True
                 fstate[fn] = m
                 if copy:
                     fstate[copy] = m
                 prev[fn] = rev
 
     fstate = fstate.items()
     fstate.sort()
     for fn, state in fstate:
         if fn in skip:
             continue
         if fn not in copies.get(prev[fn], {}):
             found = display(fn, rev, {}, state) or found
     return (not found and 1) or 0
 
 def heads(ui, repo, *branchrevs, **opts):
     """show current repository heads or show branch heads
 
     With no arguments, show all repository head changesets.
 
     If branch or revisions names are given this will show the heads of
     the specified branches or the branches those revisions are tagged
     with.
 
     Repository "heads" are changesets that don't have child
     changesets. They are where development generally takes place and
     are the usual targets for update and merge operations.
 
     Branch heads are changesets that have a given branch tag, but have
     no child changesets with that tag.  They are usually where
     development on the given branch takes place.
     """
     if opts['rev']:
         start = repo.lookup(opts['rev'])
     else:
         start = None
     if not branchrevs:
         # Assume we're looking repo-wide heads if no revs were specified.
         heads = repo.heads(start)
     else:
         heads = []
         visitedset = util.set()
         for branchrev in branchrevs:
             branch = repo.changectx(branchrev).branch()
             if branch in visitedset:
                 continue
             visitedset.add(branch)
             bheads = repo.branchheads(branch, start)
             if not bheads:
                 if branch != branchrev:
                     ui.warn(_("no changes on branch %s containing %s are "
                               "reachable from %s\n")
                             % (branch, branchrev, opts['rev']))
                 else:
                     ui.warn(_("no changes on branch %s are reachable from %s\n")
                             % (branch, opts['rev']))
             heads.extend(bheads)
     if not heads:
         return 1
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in heads:
         displayer.show(changenode=n)
 
 def help_(ui, name=None, with_version=False):
     """show help for a command, extension, or list of commands
 
     With no arguments, print a list of commands and short help.
 
     Given a command name, print help for that command.
 
     Given an extension name, print help for that extension, and the
     commands it provides."""
     option_lists = []
 
     def addglobalopts(aliases):
         if ui.verbose:
             option_lists.append((_("global options:"), globalopts))
             if name == 'shortlist':
                 option_lists.append((_('use "hg help" for the full list '
                                        'of commands'), ()))
         else:
             if name == 'shortlist':
                 msg = _('use "hg help" for the full list of commands '
                         'or "hg -v" for details')
             elif aliases:
                 msg = _('use "hg -v help%s" to show aliases and '
                         'global options') % (name and " " + name or "")
             else:
                 msg = _('use "hg -v help %s" to show global options') % name
             option_lists.append((msg, ()))
 
     def helpcmd(name):
         if with_version:
             version_(ui)
             ui.write('\n')
         aliases, i = cmdutil.findcmd(ui, name, table)
         # synopsis
         ui.write("%s\n" % i[2])
 
         # aliases
         if not ui.quiet and len(aliases) > 1:
             ui.write(_("\naliases: %s\n") % ', '.join(aliases[1:]))
 
         # description
         doc = i[0].__doc__
         if not doc:
             doc = _("(No help text available)")
         if ui.quiet:
             doc = doc.splitlines(0)[0]
         ui.write("\n%s\n" % doc.rstrip())
 
         if not ui.quiet:
             # options
             if i[1]:
                 option_lists.append((_("options:\n"), i[1]))
 
             addglobalopts(False)
 
     def helplist(header, select=None):
         h = {}
         cmds = {}
         for c, e in table.items():
             f = c.split("|", 1)[0]
             if select and not select(f):
                 continue
             if name == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             if not ui.debugflag and f.startswith("debug"):
                 continue
             doc = e[0].__doc__
             if not doc:
                 doc = _("(No help text available)")
             h[f] = doc.splitlines(0)[0].rstrip()
             cmds[f] = c.lstrip("^")
 
         if not h:
             ui.status(_('no commands defined\n'))
             return
 
         ui.status(header)
         fns = h.keys()
         fns.sort()
         m = max(map(len, fns))
         for f in fns:
             if ui.verbose:
                 commands = cmds[f].replace("|",", ")
                 ui.write(" %s:\n      %s\n"%(commands, h[f]))
             else:
                 ui.write(' %-*s   %s\n' % (m, f, h[f]))
 
         if not ui.quiet:
             addglobalopts(True)
 
     def helptopic(name):
         v = None
         for i in help.helptable:
             l = i.split('|')
             if name in l:
                 v = i
                 header = l[-1]
         if not v:
             raise cmdutil.UnknownCommand(name)
 
         # description
         doc = help.helptable[v]
         if not doc:
             doc = _("(No help text available)")
         if callable(doc):
             doc = doc()
 
         ui.write("%s\n" % header)
         ui.write("%s\n" % doc.rstrip())
 
     def helpext(name):
         try:
             mod = extensions.find(name)
         except KeyError:
             raise cmdutil.UnknownCommand(name)
 
         doc = (mod.__doc__ or _('No help text available')).splitlines(0)
         ui.write(_('%s extension - %s\n') % (name.split('.')[-1], doc[0]))
         for d in doc[1:]:
             ui.write(d, '\n')
 
         ui.status('\n')
 
         try:
             ct = mod.cmdtable
         except AttributeError:
             ct = {}
 
         modcmds = dict.fromkeys([c.split('|', 1)[0] for c in ct])
         helplist(_('list of commands:\n\n'), modcmds.has_key)
 
     if name and name != 'shortlist':
         i = None
         for f in (helpcmd, helptopic, helpext):
             try:
                 f(name)
                 i = None
                 break
             except cmdutil.UnknownCommand, inst:
                 i = inst
         if i:
             raise i
 
     else:
         # program name
         if ui.verbose or with_version:
             version_(ui)
         else:
             ui.status(_("Mercurial Distributed SCM\n"))
         ui.status('\n')
 
         # list of commands
         if name == "shortlist":
             header = _('basic commands:\n\n')
         else:
             header = _('list of commands:\n\n')
 
         helplist(header)
 
     # list all option lists
     opt_output = []
     for title, options in option_lists:
         opt_output.append(("\n%s" % title, None))
         for shortopt, longopt, default, desc in options:
             if "DEPRECATED" in desc and not ui.verbose: continue
             opt_output.append(("%2s%s" % (shortopt and "-%s" % shortopt,
                                           longopt and " --%s" % longopt),
                                "%s%s" % (desc,
                                          default
                                          and _(" (default: %s)") % default
                                          or "")))
 
     if opt_output:
         opts_len = max([len(line[0]) for line in opt_output if line[1]] or [0])
         for first, second in opt_output:
             if second:
                 ui.write(" %-*s  %s\n" % (opts_len, first, second))
             else:
                 ui.write("%s\n" % first)
 
 def identify(ui, repo, source=None,
              rev=None, num=None, id=None, branch=None, tags=None):
     """identify the working copy or specified revision
 
     With no revision, print a summary of the current state of the repo.
 
     With a path, do a lookup in another repository.
 
     This summary identifies the repository state using one or two parent
     hash identifiers, followed by a "+" if there are uncommitted changes
     in the working directory, a list of tags for this revision and a branch
     name for non-default branches.
     """
 
     if not repo and not source:
         raise util.Abort(_("There is no Mercurial repository here "
                            "(.hg not found)"))
 
     hexfunc = ui.debugflag and hex or short
     default = not (num or id or branch or tags)
     output = []
 
     if source:
         source, revs, checkout = hg.parseurl(ui.expandpath(source), [])
         srepo = hg.repository(ui, source)
         if not rev and revs:
             rev = revs[0]
         if not rev:
             rev = "tip"
         if num or branch or tags:
             raise util.Abort(
                 "can't query remote revision number, branch, or tags")
         output = [hexfunc(srepo.lookup(rev))]
     elif not rev:
         ctx = repo.workingctx()
         parents = ctx.parents()
         changed = False
         if default or id or num:
             changed = ctx.files() + ctx.deleted()
         if default or id:
             output = ["%s%s" % ('+'.join([hexfunc(p.node()) for p in parents]),
                                 (changed) and "+" or "")]
         if num:
             output.append("%s%s" % ('+'.join([str(p.rev()) for p in parents]),
                                     (changed) and "+" or ""))
     else:
         ctx = repo.changectx(rev)
         if default or id:
             output = [hexfunc(ctx.node())]
         if num:
             output.append(str(ctx.rev()))
 
     if not source and default and not ui.quiet:
         b = util.tolocal(ctx.branch())
         if b != 'default':
             output.append("(%s)" % b)
 
         # multiple tags for a single parent separated by '/'
         t = "/".join(ctx.tags())
         if t:
             output.append(t)
 
     if branch:
         output.append(util.tolocal(ctx.branch()))
 
     if tags:
         output.extend(ctx.tags())
 
     ui.write("%s\n" % ' '.join(output))
 
 def import_(ui, repo, patch1, *patches, **opts):
     """import an ordered set of patches
 
     Import a list of patches and commit them individually.
 
     If there are outstanding changes in the working directory, import
     will abort unless given the -f flag.
 
     You can import a patch straight from a mail message.  Even patches
     as attachments work (body part must be type text/plain or
     text/x-patch to be used).  From and Subject headers of email
     message are used as default committer and commit message.  All
     text/plain body parts before first diff are added to commit
     message.
 
     If the imported patch was generated by hg export, user and description
     from patch override values from message headers and body.  Values
     given on command line with -m and -u override these.
 
     If --exact is specified, import will set the working directory
     to the parent of each patch before applying it, and will abort
     if the resulting changeset has a different ID than the one
     recorded in the patch. This may happen due to character set
     problems or other deficiencies in the text patch format.
 
     To read a patch from standard input, use patch name "-".
     """
     patches = (patch1,) + patches
 
     if opts.get('exact') or not opts['force']:
         cmdutil.bail_if_changed(repo)
 
     d = opts["base"]
     strip = opts["strip"]
     wlock = lock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         for p in patches:
             pf = os.path.join(d, p)
 
             if pf == '-':
                 ui.status(_("applying patch from stdin\n"))
                 data = patch.extract(ui, sys.stdin)
             else:
                 ui.status(_("applying %s\n") % p)
                 if os.path.exists(pf):
                     data = patch.extract(ui, file(pf, 'rb'))
                 else:
                     data = patch.extract(ui, urllib.urlopen(pf))
             tmpname, message, user, date, branch, nodeid, p1, p2 = data
 
             if tmpname is None:
                 raise util.Abort(_('no diffs found'))
 
             try:
                 cmdline_message = cmdutil.logmessage(opts)
                 if cmdline_message:
                     # pickup the cmdline msg
                     message = cmdline_message
                 elif message:
                     # pickup the patch msg
                     message = message.strip()
                 else:
                     # launch the editor
                     message = None
                 ui.debug(_('message:\n%s\n') % message)
 
                 wp = repo.workingctx().parents()
                 if opts.get('exact'):
                     if not nodeid or not p1:
                         raise util.Abort(_('not a mercurial patch'))
                     p1 = repo.lookup(p1)
                     p2 = repo.lookup(p2 or hex(nullid))
 
                     if p1 != wp[0].node():
                         hg.clean(repo, p1)
                     repo.dirstate.setparents(p1, p2)
                 elif p2:
                     try:
                         p1 = repo.lookup(p1)
                         p2 = repo.lookup(p2)
                         if p1 == wp[0].node():
                             repo.dirstate.setparents(p1, p2)
                     except hg.RepoError:
                         pass
                 if opts.get('exact') or opts.get('import_branch'):
                     repo.dirstate.setbranch(branch or 'default')
 
                 files = {}
                 try:
                     fuzz = patch.patch(tmpname, ui, strip=strip, cwd=repo.root,
                                        files=files)
                 finally:
                     files = patch.updatedir(ui, repo, files)
                 if not opts.get('no_commit'):
                     n = repo.commit(files, message, opts.get('user') or user,
                                     opts.get('date') or date)
                     if opts.get('exact'):
                         if hex(n) != nodeid:
                             repo.rollback()
                             raise util.Abort(_('patch is damaged'
                                                ' or loses information'))
                     # Force a dirstate write so that the next transaction
                     # backups an up-do-date file.
                     repo.dirstate.write()
             finally:
                 os.unlink(tmpname)
     finally:
         del lock, wlock
 
 def incoming(ui, repo, source="default", **opts):
     """show new changesets found in source
 
     Show new changesets found in the specified path/URL or the default
     pull location. These are the changesets that would be pulled if a pull
     was requested.
 
     For remote repository, using --bundle avoids downloading the changesets
     twice if the incoming is followed by a pull.
 
     See pull for valid source format details.
     """
     source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('comparing with %s\n') % util.hidepassword(source))
     if revs:
         revs = [other.lookup(rev) for rev in revs]
     incoming = repo.findincoming(other, heads=revs, force=opts["force"])
     if not incoming:
         try:
             os.unlink(opts["bundle"])
         except:
             pass
         ui.status(_("no changes found\n"))
         return 1
 
     cleanup = None
     try:
         fname = opts["bundle"]
         if fname or not other.local():
             # create a bundle (uncompressed if other repo is not local)
             if revs is None:
                 cg = other.changegroup(incoming, "incoming")
             else:
                 cg = other.changegroupsubset(incoming, revs, 'incoming')
             bundletype = other.local() and "HG10BZ" or "HG10UN"
             fname = cleanup = changegroup.writebundle(cg, fname, bundletype)
             # keep written bundle?
             if opts["bundle"]:
                 cleanup = None
             if not other.local():
                 # use the created uncompressed bundlerepo
                 other = bundlerepo.bundlerepository(ui, repo.root, fname)
 
         o = other.changelog.nodesbetween(incoming, revs)[0]
         if opts['newest_first']:
             o.reverse()
         displayer = cmdutil.show_changeset(ui, other, opts)
         for n in o:
             parents = [p for p in other.changelog.parents(n) if p != nullid]
             if opts['no_merges'] and len(parents) == 2:
                 continue
             displayer.show(changenode=n)
     finally:
         if hasattr(other, 'close'):
             other.close()
         if cleanup:
             os.unlink(cleanup)
 
 def init(ui, dest=".", **opts):
     """create a new repository in the given directory
 
     Initialize a new repository in the given directory.  If the given
     directory does not exist, it is created.
 
     If no directory is given, the current directory is used.
 
     It is possible to specify an ssh:// URL as the destination.
     Look at the help text for the pull command for important details
     about ssh:// URLs.
     """
     cmdutil.setremoteconfig(ui, opts)
     hg.repository(ui, dest, create=1)
 
 def locate(ui, repo, *pats, **opts):
     """locate files matching specific patterns
 
     Print all files under Mercurial control whose names match the
     given patterns.
 
     This command searches the entire repository by default.  To search
     just the current directory and its subdirectories, use
     "--include .".
 
     If no patterns are given to match, this command prints all file
     names.
 
     If you want to feed the output of this command into the "xargs"
     command, use the "-0" option to both this command and "xargs".
     This will avoid the problem of "xargs" treating single filenames
     that contain white space as multiple filenames.
     """
     end = opts['print0'] and '\0' or '\n'
     rev = opts['rev']
     if rev:
         node = repo.lookup(rev)
     else:
         node = None
 
     ret = 1
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts, node=node,
                                              badmatch=util.always,
                                              default='relglob'):
         if src == 'b':
             continue
         if not node and abs not in repo.dirstate:
             continue
         if opts['fullpath']:
             ui.write(os.path.join(repo.root, abs), end)
         else:
             ui.write(((pats and rel) or abs), end)
         ret = 0
 
     return ret
 
 def log(ui, repo, *pats, **opts):
     """show revision history of entire repository or files
 
     Print the revision history of the specified files or the entire
     project.
 
     File history is shown without following rename or copy history of
     files.  Use -f/--follow with a file name to follow history across
     renames and copies. --follow without a file name will only show
     ancestors or descendants of the starting revision. --follow-first
     only follows the first parent of merge revisions.
 
     If no revision range is specified, the default is tip:0 unless
     --follow is set, in which case the working directory parent is
     used as the starting revision.
 
     By default this command outputs: changeset id and hash, tags,
     non-trivial parents, user, date and time, and a summary for each
     commit. When the -v/--verbose switch is used, the list of changed
     files and full commit message is shown.
 
     NOTE: log -p may generate unexpected diff output for merge
     changesets, as it will compare the merge changeset against its
     first parent only. Also, the files: list will only reflect files
     that are different from BOTH parents.
 
     """
 
     get = util.cachefunc(lambda r: repo.changectx(r).changeset())
     changeiter, matchfn = cmdutil.walkchangerevs(ui, repo, pats, get, opts)
 
     if opts['limit']:
         try:
             limit = int(opts['limit'])
         except ValueError:
             raise util.Abort(_('limit must be a positive integer'))
         if limit <= 0: raise util.Abort(_('limit must be positive'))
     else:
         limit = sys.maxint
     count = 0
 
     if opts['copies'] and opts['rev']:
         endrev = max(cmdutil.revrange(repo, opts['rev'])) + 1
     else:
         endrev = repo.changelog.count()
     rcache = {}
     ncache = {}
     def getrenamed(fn, rev):
         '''looks up all renames for a file (up to endrev) the first
         time the file is given. It indexes on the changerev and only
         parses the manifest if linkrev != changerev.
         Returns rename info for fn at changerev rev.'''
         if fn not in rcache:
             rcache[fn] = {}
             ncache[fn] = {}
             fl = repo.file(fn)
             for i in xrange(fl.count()):
                 node = fl.node(i)
                 lr = fl.linkrev(node)
                 renamed = fl.renamed(node)
                 rcache[fn][lr] = renamed
                 if renamed:
                     ncache[fn][node] = renamed
                 if lr >= endrev:
                     break
         if rev in rcache[fn]:
             return rcache[fn][rev]
 
         # If linkrev != rev (i.e. rev not found in rcache) fallback to
         # filectx logic.
 
         try:
             return repo.changectx(rev).filectx(fn).renamed()
         except revlog.LookupError:
             pass
         return None
 
     df = False
     if opts["date"]:
         df = util.matchdate(opts["date"])
 
     displayer = cmdutil.show_changeset(ui, repo, opts, True, matchfn)
     for st, rev, fns in changeiter:
         if st == 'add':
             changenode = repo.changelog.node(rev)
             parents = [p for p in repo.changelog.parentrevs(rev)
                        if p != nullrev]
             if opts['no_merges'] and len(parents) == 2:
                 continue
             if opts['only_merges'] and len(parents) != 2:
                 continue
 
             if df:
                 changes = get(rev)
                 if not df(changes[2][0]):
                     continue
 
             if opts['keyword']:
                 changes = get(rev)
                 miss = 0
                 for k in [kw.lower() for kw in opts['keyword']]:
                     if not (k in changes[1].lower() or
                             k in changes[4].lower() or
                             k in " ".join(changes[3]).lower()):
                         miss = 1
                         break
                 if miss:
                     continue
 
             copies = []
             if opts.get('copies') and rev:
                 for fn in get(rev)[3]:
                     rename = getrenamed(fn, rev)
                     if rename:
                         copies.append((fn, rename[0]))
             displayer.show(rev, changenode, copies=copies)
         elif st == 'iter':
             if count == limit: break
             if displayer.flush(rev):
                 count += 1
 
 def manifest(ui, repo, node=None, rev=None):
     """output the current or given revision of the project manifest
 
     Print a list of version controlled files for the given revision.
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     The manifest is the list of files being version controlled. If no revision
     is given then the first parent of the working directory is used.
 
     With -v flag, print file permissions, symlink and executable bits. With
     --debug flag, print file revision hashes.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not node:
         node = rev
 
     m = repo.changectx(node).manifest()
     files = m.keys()
     files.sort()
 
     for f in files:
         if ui.debugflag:
             ui.write("%40s " % hex(m[f]))
         if ui.verbose:
             type = m.execf(f) and "*" or m.linkf(f) and "@" or " "
             perm = m.execf(f) and "755" or "644"
             ui.write("%3s %1s " % (perm, type))
         ui.write("%s\n" % f)
 
 def merge(ui, repo, node=None, force=None, rev=None):
     """merge working directory with another revision
 
     Merge the contents of the current working directory and the
     requested revision. Files that changed between either parent are
     marked as changed for the next commit and a commit must be
     performed before any further updates are allowed.
 
     If no revision is specified, the working directory's parent is a
     head revision, and the repository contains exactly one other head,
     the other head is merged with by default.  Otherwise, an explicit
     revision to merge with must be provided.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
     if not node:
         node = rev
 
     if not node:
         heads = repo.heads()
         if len(heads) > 2:
             raise util.Abort(_('repo has %d heads - '
                                'please merge with an explicit rev') %
                              len(heads))
         parent = repo.dirstate.parents()[0]
         if len(heads) == 1:
             msg = _('there is nothing to merge')
             if parent != repo.lookup(repo.workingctx().branch()):
                 msg = _('%s - use "hg update" instead') % msg
             raise util.Abort(msg)
 
         if parent not in heads:
             raise util.Abort(_('working dir not at a head rev - '
                                'use "hg update" or merge with an explicit rev'))
         node = parent == heads[0] and heads[-1] or heads[0]
     return hg.merge(repo, node, force=force)
 
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in destination
 
     Show changesets not found in the specified destination repository or
     the default push location. These are the changesets that would be pushed
     if a push was requested.
 
     See pull for valid destination format details.
     """
     dest, revs, checkout = hg.parseurl(
         ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
     other = hg.repository(ui, dest)
     ui.status(_('comparing with %s\n') % util.hidepassword(dest))
     o = repo.findoutgoing(other, force=opts['force'])
     if not o:
         ui.status(_("no changes found\n"))
         return 1
     o = repo.changelog.nodesbetween(o, revs)[0]
     if opts['newest_first']:
         o.reverse()
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in o:
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
         if opts['no_merges'] and len(parents) == 2:
             continue
         displayer.show(changenode=n)
 
 def parents(ui, repo, file_=None, **opts):
     """show the parents of the working dir or revision
 
     Print the working directory's parent revisions. If a
     revision is given via --rev, the parent of that revision
     will be printed. If a file argument is given, revision in
     which the file was last changed (before the working directory
     revision or the argument to --rev if given) is printed.
     """
     rev = opts.get('rev')
     if rev:
         ctx = repo.changectx(rev)
     else:
         ctx = repo.workingctx()
 
     if file_:
         files, match, anypats = cmdutil.matchpats(repo, (file_,), opts)
         if anypats or len(files) != 1:
             raise util.Abort(_('can only specify an explicit file name'))
         file_ = files[0]
         filenodes = []
         for cp in ctx.parents():
             if not cp:
                 continue
             try:
                 filenodes.append(cp.filenode(file_))
             except revlog.LookupError:
                 pass
         if not filenodes:
             raise util.Abort(_("'%s' not found in manifest!") % file_)
         fl = repo.file(file_)
         p = [repo.lookup(fl.linkrev(fn)) for fn in filenodes]
     else:
         p = [cp.node() for cp in ctx.parents()]
 
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for n in p:
         if n != nullid:
             displayer.show(changenode=n)
 
 def paths(ui, repo, search=None):
     """show definition of symbolic path names
 
     Show definition of symbolic path name NAME. If no name is given, show
     definition of available names.
 
     Path names are defined in the [paths] section of /etc/mercurial/hgrc
     and $HOME/.hgrc.  If run inside a repository, .hg/hgrc is used, too.
     """
     if search:
         for name, path in ui.configitems("paths"):
             if name == search:
                 ui.write("%s\n" % path)
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, path))
 
 def postincoming(ui, repo, modheads, optupdate, checkout):
     if modheads == 0:
         return
     if optupdate:
         if modheads <= 1 or checkout:
             return hg.update(repo, checkout)
         else:
             ui.status(_("not updating, since new heads added\n"))
     if modheads > 1:
         ui.status(_("(run 'hg heads' to see heads, 'hg merge' to merge)\n"))
     else:
         ui.status(_("(run 'hg update' to get a working copy)\n"))
 
 def pull(ui, repo, source="default", **opts):
     """pull changes from the specified source
 
     Pull changes from a remote repository to a local one.
 
     This finds all changes from the repository at the specified path
     or URL and adds them to the local repository. By default, this
     does not update the copy of the project in the working directory.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       http://[user@]host[:port]/[path]
       https://[user@]host[:port]/[path]
       ssh://[user@]host[:port]/[path]
       static-http://host[:port]/[path]
 
     Paths in the local filesystem can either point to Mercurial
     repositories or to bundle files (as created by 'hg bundle' or
     'hg incoming --bundle'). The static-http:// protocol, albeit slow,
     allows access to a Mercurial repository where you simply use a web
     server to publish the .hg directory as static content.
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to pull.
 
     Some notes about using SSH with Mercurial:
     - SSH requires an accessible shell account on the destination machine
       and a copy of hg in the remote path or specified with as remotecmd.
     - path is relative to the remote user's home directory by default.
       Use an extra slash at the start of a path to specify an absolute path:
         ssh://example.com//tmp/repository
     - Mercurial doesn't use its own compression via SSH; the right thing
       to do is to configure it in your ~/.ssh/config, e.g.:
         Host *.mylocalnetwork.example.com
           Compression no
         Host *
           Compression yes
       Alternatively specify "ssh -C" as your ssh command in your hgrc or
       with the --ssh command line option.
     """
     source, revs, checkout = hg.parseurl(ui.expandpath(source), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, source)
     ui.status(_('pulling from %s\n') % util.hidepassword(source))
     if revs:
         try:
             revs = [other.lookup(rev) for rev in revs]
         except repo.NoCapability:
             error = _("Other repository doesn't support revision lookup, "
                       "so a rev cannot be specified.")
             raise util.Abort(error)
 
     modheads = repo.pull(other, heads=revs, force=opts['force'])
     return postincoming(ui, repo, modheads, opts['update'], checkout)
 
 def push(ui, repo, dest=None, **opts):
     """push changes to the specified destination
 
     Push changes from the local repository to the given destination.
 
     This is the symmetrical operation for pull. It helps to move
     changes from the current repository to a different one. If the
     destination is local this is identical to a pull in that directory
     from the current one.
 
     By default, push will refuse to run if it detects the result would
     increase the number of remote heads. This generally indicates the
     the client has forgotten to sync and merge before pushing.
 
     Valid URLs are of the form:
 
       local/filesystem/path (or file://local/filesystem/path)
       ssh://[user@]host[:port]/[path]
       http://[user@]host[:port]/[path]
       https://[user@]host[:port]/[path]
 
     An optional identifier after # indicates a particular branch, tag,
     or changeset to push.
 
     Look at the help text for the pull command for important details
     about ssh:// URLs.
 
     Pushing to http:// and https:// URLs is only possible, if this
     feature is explicitly enabled on the remote Mercurial server.
     """
     dest, revs, checkout = hg.parseurl(
         ui.expandpath(dest or 'default-push', dest or 'default'), opts['rev'])
     cmdutil.setremoteconfig(ui, opts)
 
     other = hg.repository(ui, dest)
     ui.status('pushing to %s\n' % util.hidepassword(dest))
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     r = repo.push(other, opts['force'], revs=revs)
     return r == 0
 
 def rawcommit(ui, repo, *pats, **opts):
     """raw commit interface (DEPRECATED)
 
     (DEPRECATED)
     Lowlevel commit, for use in helper scripts.
 
     This command is not intended to be used by normal users, as it is
     primarily useful for importing from other SCMs.
 
     This command is now deprecated and will be removed in a future
     release, please use debugsetparents and commit instead.
     """
 
     ui.warn(_("(the rawcommit command is deprecated)\n"))
 
     message = cmdutil.logmessage(opts)
 
     files, match, anypats = cmdutil.matchpats(repo, pats, opts)
     if opts['files']:
         files += open(opts['files']).read().splitlines()
 
     parents = [repo.lookup(p) for p in opts['parent']]
 
     try:
         repo.rawcommit(files, message, opts['user'], opts['date'], *parents)
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def recover(ui, repo):
     """roll back an interrupted transaction
 
     Recover from an interrupted commit or pull.
 
     This command tries to fix the repository status after an interrupted
     operation. It should only be necessary when Mercurial suggests it.
     """
     if repo.recover():
         return hg.verify(repo)
     return 1
 
 def remove(ui, repo, *pats, **opts):
     """remove the specified files on the next commit
 
     Schedule the indicated files for removal from the repository.
 
     This only removes files from the current branch, not from the
     entire project history.  If the files still exist in the working
     directory, they will be deleted from it.  If invoked with --after,
     files are marked as removed, but not actually unlinked unless --force
     is also given. Without exact file names, --after will only mark
     files as removed if they are no longer in the working directory.
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see hg revert.
 
     Modified files and added files are not removed by default.  To
     remove them, use the -f/--force option.
     """
     if not opts['after'] and not pats:
         raise util.Abort(_('no files specified'))
     files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
     exact = dict.fromkeys(files)
     mardu = map(dict.fromkeys, repo.status(files=files, match=matchfn))[:5]
     modified, added, removed, deleted, unknown = mardu
     remove, forget = [], []
     for src, abs, rel, exact in cmdutil.walk(repo, pats, opts):
         reason = None
         if abs in modified and not opts['force']:
             reason = _('is modified (use -f to force removal)')
         elif abs in added:
             if opts['force']:
                 forget.append(abs)
                 continue
             reason = _('has been marked for add (use -f to force removal)')
             exact = 1 # force the message
         elif abs not in repo.dirstate:
             reason = _('is not managed')
         elif opts['after'] and not exact and abs not in deleted:
             continue
         elif abs in removed:
             continue
         if reason:
             if exact:
                 ui.warn(_('not removing %s: file %s\n') % (rel, reason))
         else:
             if ui.verbose or not exact:
                 ui.status(_('removing %s\n') % rel)
             remove.append(abs)
     repo.forget(forget)
     repo.remove(remove, unlink=opts['force'] or not opts['after'])
 
 def rename(ui, repo, *pats, **opts):
     """rename files; equivalent of copy + remove
 
     Mark dest as copies of sources; mark sources for deletion.  If
     dest is a directory, copies are put in that directory.  If dest is
     a file, there can only be one source.
 
     By default, this command copies the contents of files as they
     stand in the working directory.  If invoked with --after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect in the next commit. To undo a rename
     before that, see hg revert.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts, rename=True)
     finally:
         del wlock
 
 def revert(ui, repo, *pats, **opts):
     """restore individual files or dirs to an earlier state
 
     (use update -r to check out earlier revisions, revert does not
     change the working dir parents)
 
     With no revision specified, revert the named files or directories
     to the contents they had in the parent of the working directory.
     This restores the contents of the affected files to an unmodified
     state and unschedules adds, removes, copies, and renames. If the
     working directory has two parents, you must explicitly specify the
     revision to revert to.
 
     Using the -r option, revert the given files or directories to their
     contents as of a specific revision. This can be helpful to "roll
     back" some or all of an earlier  change.
 
     Revert modifies the working directory.  It does not commit any
     changes, or change the parent of the working directory.  If you
     revert to a revision other than the parent of the working
     directory, the reverted files will thus appear modified
     afterwards.
 
     If a file has been deleted, it is restored.  If the executable
     mode of a file was changed, it is reset.
 
     If names are given, all files matching the names are reverted.
 
     If no arguments are given, no files are reverted.
 
     Modified files are saved with a .orig suffix before reverting.
     To disable these backups, use --no-backup.
     """
 
     if opts["date"]:
         if opts["rev"]:
             raise util.Abort(_("you can't specify a revision and a date"))
         opts["rev"] = cmdutil.finddate(ui, repo, opts["date"])
 
     if not pats and not opts['all']:
         raise util.Abort(_('no files or directories specified; '
                            'use --all to revert the whole repo'))
 
     parent, p2 = repo.dirstate.parents()
     if not opts['rev'] and p2 != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
     ctx = repo.changectx(opts['rev'])
     node = ctx.node()
     mf = ctx.manifest()
     if node == parent:
         pmf = mf
     else:
         pmf = None
 
     # need all matching names in dirstate and manifest of target rev,
     # so have to walk both. do not print errors if files exist in one
     # but not other.
 
     names = {}
     target_only = {}
 
     wlock = repo.wlock()
     try:
         # walk dirstate.
         for src, abs, rel, exact in cmdutil.walk(repo, pats, opts,
                                                  badmatch=mf.has_key):
             names[abs] = (rel, exact)
             if src == 'b':
                 target_only[abs] = True
 
         # walk target manifest.
 
         def badmatch(path):
             if path in names:
                 return True
             path_ = path + '/'
             for f in names:
                 if f.startswith(path_):
                     return True
             return False
 
         for src, abs, rel, exact in cmdutil.walk(repo, pats, opts, node=node,
                                                  badmatch=badmatch):
             if abs in names or src == 'b':
                 continue
             names[abs] = (rel, exact)
             target_only[abs] = True
 
         changes = repo.status(match=names.has_key)[:5]
         modified, added, removed, deleted, unknown = map(dict.fromkeys, changes)
 
         # if f is a rename, also revert the source
         cwd = repo.getcwd()
         for f in added:
             src = repo.dirstate.copied(f)
             if src and src not in names and repo.dirstate[src] == 'r':
                 removed[src] = None
                 names[src] = (repo.pathto(src, cwd), True)
 
         revert = ([], _('reverting %s\n'))
         add = ([], _('adding %s\n'))
         remove = ([], _('removing %s\n'))
         forget = ([], _('forgetting %s\n'))
         undelete = ([], _('undeleting %s\n'))
         update = {}
 
         disptable = (
             # dispatch table:
             #   file state
             #   action if in target manifest
             #   action if not in target manifest
             #   make backup if in target manifest
             #   make backup if not in target manifest
             (modified, revert, remove, True, True),
             (added, revert, forget, True, False),
             (removed, undelete, None, False, False),
             (deleted, revert, remove, False, False),
             (unknown, add, None, True, False),
             (target_only, add, None, False, False),
             )
 
         entries = names.items()
         entries.sort()
 
         for abs, (rel, exact) in entries:
             mfentry = mf.get(abs)
             target = repo.wjoin(abs)
             def handle(xlist, dobackup):
                 xlist[0].append(abs)
                 update[abs] = 1
                 if dobackup and not opts['no_backup'] and util.lexists(target):
                     bakname = "%s.orig" % rel
                     ui.note(_('saving current version of %s as %s\n') %
                             (rel, bakname))
                     if not opts.get('dry_run'):
                         util.copyfile(target, bakname)
                 if ui.verbose or not exact:
                     ui.status(xlist[1] % rel)
             for table, hitlist, misslist, backuphit, backupmiss in disptable:
                 if abs not in table: continue
                 # file has changed in dirstate
                 if mfentry:
                     handle(hitlist, backuphit)
                 elif misslist is not None:
                     handle(misslist, backupmiss)
                 else:
                     if exact: ui.warn(_('file not managed: %s\n') % rel)
                 break
             else:
                 # file has not changed in dirstate
                 if node == parent:
                     if exact: ui.warn(_('no changes needed to %s\n') % rel)
                     continue
                 if pmf is None:
                     # only need parent manifest in this unlikely case,
                     # so do not read by default
                     pmf = repo.changectx(parent).manifest()
                 if abs in pmf:
                     if mfentry:
                         # if version of file is same in parent and target
                         # manifests, do nothing
                         if pmf[abs] != mfentry:
                             handle(revert, False)
                     else:
                         handle(remove, False)
 
         if not opts.get('dry_run'):
             for f in forget[0]:
                 repo.dirstate.forget(f)
             r = hg.revert(repo, node, update.has_key)
             for f in add[0]:
                 repo.dirstate.add(f)
             for f in undelete[0]:
                 repo.dirstate.normal(f)
             for f in remove[0]:
                 repo.dirstate.remove(f)
             return r
     finally:
         del wlock
 
 def rollback(ui, repo):
     """roll back the last transaction
 
     This command should be used with care. There is only one level of
     rollback, and there is no way to undo a rollback. It will also
     restore the dirstate at the time of the last transaction, losing
     any dirstate changes since that time.
 
     Transactions are used to encapsulate the effects of all commands
     that create new changesets or propagate existing changesets into a
     repository. For example, the following commands are transactional,
     and their effects can be rolled back:
 
       commit
       import
       pull
       push (with this repository as destination)
       unbundle
 
     This command is not intended for use on public repositories. Once
     changes are visible for pull by other users, rolling a transaction
     back locally is ineffective (someone else may already have pulled
     the changes). Furthermore, a race is possible with readers of the
     repository; for example an in-progress pull from the repository
     may fail if a rollback is performed.
     """
     repo.rollback()
 
 def root(ui, repo):
     """print the root (top) of the current working dir
 
     Print the root directory of the current repository.
     """
     ui.write(repo.root + "\n")
 
 def serve(ui, repo, **opts):
     """export the repository via HTTP
 
     Start a local HTTP repository browser and pull server.
 
     By default, the server logs accesses to stdout and errors to
     stderr.  Use the "-A" and "-E" options to log to files.
     """
 
     if opts["stdio"]:
         if repo is None:
             raise hg.RepoError(_("There is no Mercurial repository here"
                                  " (.hg not found)"))
         s = sshserver.sshserver(ui, repo)
         s.serve_forever()
 
     parentui = ui.parentui or ui
     optlist = ("name templates style address port prefix ipv6"
                " accesslog errorlog webdir_conf certificate")
     for o in optlist.split():
         if opts[o]:
             parentui.setconfig("web", o, str(opts[o]))
             if (repo is not None) and (repo.ui != parentui):
                 repo.ui.setconfig("web", o, str(opts[o]))
 
     if repo is None and not ui.config("web", "webdir_conf"):
         raise hg.RepoError(_("There is no Mercurial repository here"
                              " (.hg not found)"))
 
     class service:
         def init(self):
             util.set_signal_handler()
             try:
                 self.httpd = hgweb.server.create_server(parentui, repo)
             except socket.error, inst:
                 raise util.Abort(_('cannot start server: ') + inst.args[1])
 
             if not ui.verbose: return
 
             if self.httpd.prefix:
                 prefix = self.httpd.prefix.strip('/') + '/'
             else:
                 prefix = ''
 
             if self.httpd.port != 80:
                 ui.status(_('listening at http://%s:%d/%s\n') %
                           (self.httpd.addr, self.httpd.port, prefix))
             else:
                 ui.status(_('listening at http://%s/%s\n') % 
                           (self.httpd.addr, prefix))
 
         def run(self):
             self.httpd.serve_forever()
 
     service = service()
 
     cmdutil.service(opts, initfn=service.init, runfn=service.run)
 
 def status(ui, repo, *pats, **opts):
     """show changed files in the working directory
 
     Show status of files in the repository.  If names are given, only
     files that match are shown.  Files that are clean or ignored or
     source of a copy/move operation, are not listed unless -c (clean),
     -i (ignored), -C (copies) or -A is given.  Unless options described
     with "show only ..." are given, the options -mardu are used.
 
     NOTE: status may appear to disagree with diff if permissions have
     changed or a merge has occurred. The standard diff format does not
     report permission changes and diff only reports changes relative
     to one merge parent.
 
     If one revision is given, it is used as the base revision.
     If two revisions are given, the difference between them is shown.
 
     The codes used to show the status of files are:
     M = modified
     A = added
     R = removed
     C = clean
     ! = deleted, but still tracked
     ? = not tracked
     I = ignored
       = the previous added file was copied from here
     """
 
     all = opts['all']
     node1, node2 = cmdutil.revpair(repo, opts.get('rev'))
 
     files, matchfn, anypats = cmdutil.matchpats(repo, pats, opts)
     cwd = (pats and repo.getcwd()) or ''
     modified, added, removed, deleted, unknown, ignored, clean = [
         n for n in repo.status(node1=node1, node2=node2, files=files,
                              match=matchfn,
                              list_ignored=all or opts['ignored'],
                              list_clean=all or opts['clean'])]
 
     changetypes = (('modified', 'M', modified),
                    ('added', 'A', added),
                    ('removed', 'R', removed),
                    ('deleted', '!', deleted),
                    ('unknown', '?', unknown),
                    ('ignored', 'I', ignored))
 
     explicit_changetypes = changetypes + (('clean', 'C', clean),)
 
     end = opts['print0'] and '\0' or '\n'
 
     for opt, char, changes in ([ct for ct in explicit_changetypes
                                 if all or opts[ct[0]]]
                                or changetypes):
         if opts['no_status']:
             format = "%%s%s" % end
         else:
             format = "%s %%s%s" % (char, end)
 
         for f in changes:
             ui.write(format % repo.pathto(f, cwd))
             if ((all or opts.get('copies')) and not opts.get('no_status')):
                 copied = repo.dirstate.copied(f)
                 if copied:
                     ui.write('  %s%s' % (repo.pathto(copied, cwd), end))
 
 def tag(ui, repo, name, rev_=None, **opts):
     """add a tag for the current or given revision
 
     Name a particular revision using <name>.
 
     Tags are used to name particular revisions of the repository and are
     very useful to compare different revision, to go back to significant
     earlier versions or to mark branch points as releases, etc.
 
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     To facilitate version control, distribution, and merging of tags,
     they are stored as a file named ".hgtags" which is managed
     similarly to other project files and can be hand-edited if
     necessary.  The file '.hg/localtags' is used for local tags (not
     shared among repositories).
     """
     if name in ['tip', '.', 'null']:
         raise util.Abort(_("the name '%s' is reserved") % name)
     if rev_ is not None:
         ui.warn(_("use of 'hg tag NAME [REV]' is deprecated, "
                   "please use 'hg tag [-r REV] NAME' instead\n"))
         if opts['rev']:
             raise util.Abort(_("use only one form to specify the revision"))
     if opts['rev'] and opts['remove']:
         raise util.Abort(_("--rev and --remove are incompatible"))
     if opts['rev']:
         rev_ = opts['rev']
     message = opts['message']
     if opts['remove']:
         tagtype = repo.tagtype(name)
 
         if not tagtype:
             raise util.Abort(_('tag %s does not exist') % name)
         if opts['local'] and tagtype == 'global':
            raise util.Abort(_('%s tag is global') % name)
         if not opts['local'] and tagtype == 'local':
            raise util.Abort(_('%s tag is local') % name)
 
         rev_ = nullid
         if not message:
             message = _('Removed tag %s') % name
     elif name in repo.tags() and not opts['force']:
         raise util.Abort(_('a tag named %s already exists (use -f to force)')
                          % name)
     if not rev_ and repo.dirstate.parents()[1] != nullid:
         raise util.Abort(_('uncommitted merge - please provide a '
                            'specific revision'))
     r = repo.changectx(rev_).node()
 
     if not message:
         message = _('Added tag %s for changeset %s') % (name, short(r))
 
     repo.tag(name, r, message, opts['local'], opts['user'], opts['date'])
 
 def tags(ui, repo):
     """list repository tags
 
     List the repository tags.
 
     This lists both regular and local tags. When the -v/--verbose switch
     is used, a third column "local" is printed for local tags.
     """
 
     l = repo.tagslist()
     l.reverse()
     hexfunc = ui.debugflag and hex or short
     tagtype = ""
 
     for t, n in l:
         if ui.quiet:
             ui.write("%s\n" % t)
             continue
 
         try:
             hn = hexfunc(n)
             r = "%5d:%s" % (repo.changelog.rev(n), hn)
         except revlog.LookupError:
             r = "    ?:%s" % hn
         else:
             spaces = " " * (30 - util.locallen(t))
             if ui.verbose:
                 if repo.tagtype(t) == 'local':
                     tagtype = " local"
                 else:
                     tagtype = ""
             ui.write("%s%s %s%s\n" % (t, spaces, r, tagtype))
 
 def tip(ui, repo, **opts):
     """show the tip revision
 
     Show the tip revision.
     """
     cmdutil.show_changeset(ui, repo, opts).show(nullrev+repo.changelog.count())
 
 def unbundle(ui, repo, fname1, *fnames, **opts):
     """apply one or more changegroup files
 
     Apply one or more compressed changegroup files generated by the
     bundle command.
     """
     fnames = (fname1,) + fnames
     for fname in fnames:
         if os.path.exists(fname):
             f = open(fname, "rb")
         else:
             f = urllib.urlopen(fname)
         gen = changegroup.readbundle(f, fname)
         modheads = repo.addchangegroup(gen, 'unbundle', 'bundle:' + fname)
 
     return postincoming(ui, repo, modheads, opts['update'], None)
 
 def update(ui, repo, node=None, rev=None, clean=False, date=None):
     """update working directory
 
     Update the working directory to the specified revision, or the
     tip of the current branch if none is specified.
 
     If there are no outstanding changes in the working directory and
     there is a linear relationship between the current version and the
     requested version, the result is the requested version.
 
     To merge the working directory with another revision, use the
     merge command.
 
     By default, update will refuse to run if doing so would require
     discarding local changes.
     """
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if date:
         if rev:
             raise util.Abort(_("you can't specify a revision and a date"))
         rev = cmdutil.finddate(ui, repo, date)
 
     if clean:
         return hg.clean(repo, rev)
     else:
         return hg.update(repo, rev)
 
 def verify(ui, repo):
     """verify the integrity of the repository
 
     Verify the integrity of the current repository.
 
     This will perform an extensive check of the repository's
     integrity, validating the hashes and checksums of each entry in
     the changelog, manifest, and tracked files, as well as the
     integrity of their crosslinks and indices.
     """
     return hg.verify(repo)
 
 def version_(ui):
     """output version and copyright information"""
     ui.write(_("Mercurial Distributed SCM (version %s)\n")
              % version.get_version())
     ui.status(_(
         "\nCopyright (C) 2005-2008 Matt Mackall <[e-mail]> and others\n"
         "This is free software; see the source for copying conditions. "
         "There is NO\nwarranty; "
         "not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     ))
 
 # Command options and aliases are listed here, alphabetically
 
 globalopts = [
     ('R', 'repository', '',
      _('repository root directory or symbolic path name')),
     ('', 'cwd', '', _('change working directory')),
     ('y', 'noninteractive', None,
      _('do not prompt, assume \'yes\' for any required answers')),
     ('q', 'quiet', None, _('suppress output')),
     ('v', 'verbose', None, _('enable additional output')),
     ('', 'config', [], _('set/override config option')),
     ('', 'debug', None, _('enable debugging output')),
     ('', 'debugger', None, _('start debugger')),
     ('', 'encoding', util._encoding, _('set the charset encoding')),
     ('', 'encodingmode', util._encodingmode, _('set the charset encoding mode')),
     ('', 'lsprof', None, _('print improved command execution profile')),
     ('', 'traceback', None, _('print traceback on exception')),
     ('', 'time', None, _('time how long the command takes')),
     ('', 'profile', None, _('print command execution profile')),
     ('', 'version', None, _('output version information and exit')),
     ('h', 'help', None, _('display help and exit')),
 ]
 
 dryrunopts = [('n', 'dry-run', None,
                _('do not perform actions, just print output'))]
 
 remoteopts = [
     ('e', 'ssh', '', _('specify ssh command to use')),
     ('', 'remotecmd', '', _('specify hg command to run on the remote side')),
 ]
 
 walkopts = [
     ('I', 'include', [], _('include names matching the given patterns')),
     ('X', 'exclude', [], _('exclude names matching the given patterns')),
 ]
 
 commitopts = [
     ('m', 'message', '', _('use <text> as commit message')),
     ('l', 'logfile', '', _('read commit message from <file>')),
 ]
 
 commitopts2 = [
     ('d', 'date', '', _('record datecode as commit date')),
     ('u', 'user', '', _('record user as committer')),
 ]
 
 table = {
     "^add": (add, walkopts + dryrunopts, _('hg add [OPTION]... [FILE]...')),
     "addremove":
         (addremove,
          [('s', 'similarity', '',
            _('guess renamed files by similarity (0<=s<=100)')),
          ] + walkopts + dryrunopts,
          _('hg addremove [OPTION]... [FILE]...')),
     "^annotate":
         (annotate,
          [('r', 'rev', '', _('annotate the specified revision')),
           ('f', 'follow', None, _('follow file copies and renames')),
           ('a', 'text', None, _('treat all files as text')),
           ('u', 'user', None, _('list the author')),
           ('d', 'date', None, _('list the date')),
           ('n', 'number', None, _('list the revision number (default)')),
           ('c', 'changeset', None, _('list the changeset')),
           ('l', 'line-number', None,
            _('show line number at the first appearance'))
          ] + walkopts,
          _('hg annotate [-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...')),
     "archive":
         (archive,
          [('', 'no-decode', None, _('do not pass files through decoders')),
           ('p', 'prefix', '', _('directory prefix for files in archive')),
           ('r', 'rev', '', _('revision to distribute')),
           ('t', 'type', '', _('type of distribution to create')),
          ] + walkopts,
          _('hg archive [OPTION]... DEST')),
     "backout":
         (backout,
          [('', 'merge', None,
            _('merge with old dirstate parent after backout')),
           ('', 'parent', '', _('parent to choose when backing out merge')),
           ('r', 'rev', '', _('revision to backout')),
          ] + walkopts + commitopts + commitopts2,
          _('hg backout [OPTION]... [-r] REV')),
     "bisect":
         (bisect,
          [('r', 'reset', False, _('reset bisect state')),
           ('g', 'good', False, _('mark changeset good')),
           ('b', 'bad', False, _('mark changeset bad')),
           ('s', 'skip', False, _('skip testing changeset')),
           ('U', 'noupdate', False, _('do not update to target'))],
          _("hg bisect [-gbsr] [REV]")),
     "branch":
         (branch,
          [('f', 'force', None,
            _('set branch name even if it shadows an existing branch'))],
          _('hg branch [-f] [NAME]')),
     "branches":
         (branches,
          [('a', 'active', False,
            _('show only branches that have unmerged heads'))],
          _('hg branches [-a]')),
     "bundle":
         (bundle,
          [('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a changeset you would like to bundle')),
           ('', 'base', [],
            _('a base changeset to specify instead of a destination')),
          ] + remoteopts,
          _('hg bundle [-f] [-r REV]... [--base REV]... FILE [DEST]')),
     "cat":
         (cat,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('r', 'rev', '', _('print the given revision')),
          ] + walkopts,
          _('hg cat [OPTION]... FILE...')),
     "^clone":
         (clone,
          [('U', 'noupdate', None, _('do not update the new working directory')),
           ('r', 'rev', [],
            _('a changeset you would like to have after cloning')),
           ('', 'pull', None, _('use pull protocol to copy metadata')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
          ] + remoteopts,
          _('hg clone [OPTION]... SOURCE [DEST]')),
     "^commit|ci":
         (commit,
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before committing')),
          ] + walkopts + commitopts + commitopts2,
          _('hg commit [OPTION]... [FILE]...')),
     "copy|cp":
         (copy,
          [('A', 'after', None, _('record a copy that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg copy [OPTION]... [SOURCE]... DEST')),
     "debugancestor": (debugancestor, [], _('hg debugancestor INDEX REV1 REV2')),
     "debugcheckstate": (debugcheckstate, [], _('hg debugcheckstate')),
     "debugcomplete":
         (debugcomplete,
          [('o', 'options', None, _('show the command options'))],
          _('hg debugcomplete [-o] CMD')),
     "debugdate":
         (debugdate,
          [('e', 'extended', None, _('try extended date formats'))],
          _('hg debugdate [-e] DATE [RANGE]')),
     "debugdata": (debugdata, [], _('hg debugdata FILE REV')),
     "debugfsinfo": (debugfsinfo, [], _('hg debugfsinfo [PATH]')),
     "debugindex": (debugindex, [], _('hg debugindex FILE')),
     "debugindexdot": (debugindexdot, [], _('hg debugindexdot FILE')),
     "debuginstall": (debuginstall, [], _('hg debuginstall')),
     "debugrawcommit|rawcommit":
         (rawcommit,
          [('p', 'parent', [], _('parent')),
           ('F', 'files', '', _('file list'))
           ] + commitopts + commitopts2,
          _('hg debugrawcommit [OPTION]... [FILE]...')),
     "debugrebuildstate":
         (debugrebuildstate,
          [('r', 'rev', '', _('revision to rebuild to'))],
          _('hg debugrebuildstate [-r REV] [REV]')),
     "debugrename":
         (debugrename,
          [('r', 'rev', '', _('revision to debug'))],
          _('hg debugrename [-r REV] FILE')),
     "debugsetparents":
         (debugsetparents,
          [],
          _('hg debugsetparents REV1 [REV2]')),
     "debugstate": (debugstate, [], _('hg debugstate')),
     "debugwalk": (debugwalk, walkopts, _('hg debugwalk [OPTION]... [FILE]...')),
     "^diff":
         (diff,
          [('r', 'rev', [], _('revision')),
           ('a', 'text', None, _('treat all files as text')),
           ('p', 'show-function', None,
            _('show which function each change is in')),
           ('g', 'git', None, _('use git extended diff format')),
           ('', 'nodates', None, _("don't include dates in diff headers")),
           ('w', 'ignore-all-space', None,
            _('ignore white space when comparing lines')),
           ('b', 'ignore-space-change', None,
            _('ignore changes in the amount of white space')),
           ('B', 'ignore-blank-lines', None,
            _('ignore changes whose lines are all blank')),
          ] + walkopts,
          _('hg diff [OPTION]... [-r REV1 [-r REV2]] [FILE]...')),
     "^export":
         (export,
          [('o', 'output', '', _('print output to file with formatted name')),
           ('a', 'text', None, _('treat all files as text')),
           ('g', 'git', None, _('use git extended diff format')),
           ('', 'nodates', None, _("don't include dates in diff headers")),
           ('', 'switch-parent', None, _('diff against the second parent'))],
          _('hg export [OPTION]... [-o OUTFILESPEC] REV...')),
     "grep":
         (grep,
          [('0', 'print0', None, _('end fields with NUL')),
           ('', 'all', None, _('print all revisions that match')),
           ('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('i', 'ignore-case', None, _('ignore case when matching')),
           ('l', 'files-with-matches', None,
            _('print only filenames and revs that match')),
           ('n', 'line-number', None, _('print matching line numbers')),
           ('r', 'rev', [], _('search in given revision range')),
           ('u', 'user', None, _('print user who committed change')),
          ] + walkopts,
          _('hg grep [OPTION]... PATTERN [FILE]...')),
     "heads":
         (heads,
          [('', 'style', '', _('display using template map file')),
           ('r', 'rev', '', _('show only heads which are descendants of rev')),
           ('', 'template', '', _('display with template'))],
          _('hg heads [-r REV] [REV]...')),
     "help": (help_, [], _('hg help [COMMAND]')),
     "identify|id":
         (identify,
          [('r', 'rev', '', _('identify the specified rev')),
           ('n', 'num', None, _('show local revision number')),
           ('i', 'id', None, _('show global revision id')),
           ('b', 'branch', None, _('show branch')),
           ('t', 'tags', None, _('show tags'))],
          _('hg identify [-nibt] [-r REV] [SOURCE]')),
     "import|patch":
         (import_,
          [('p', 'strip', 1,
            _('directory strip option for patch. This has the same\n'
              'meaning as the corresponding patch option')),
           ('b', 'base', '', _('base path')),
           ('f', 'force', None,
            _('skip check for outstanding uncommitted changes')),
           ('', 'no-commit', None, _("don't commit, just update the working directory")),
           ('', 'exact', None,
            _('apply patch to the nodes from which it was generated')),
           ('', 'import-branch', None,
            _('Use any branch information in patch (implied by --exact)'))] +
          commitopts + commitopts2,
          _('hg import [OPTION]... PATCH...')),
     "incoming|in":
         (incoming,
          [('M', 'no-merges', None, _('do not show merges')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('', 'style', '', _('display using template map file')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'bundle', '', _('file to store the bundles into')),
           ('p', 'patch', None, _('show patch')),
           ('r', 'rev', [], _('a specific revision up to which you would like to pull')),
           ('', 'template', '', _('display with template')),
          ] + remoteopts,
          _('hg incoming [-p] [-n] [-M] [-f] [-r REV]...'
            ' [--bundle FILENAME] [SOURCE]')),
     "^init":
         (init,
          remoteopts,
          _('hg init [-e CMD] [--remotecmd CMD] [DEST]')),
     "locate":
         (locate,
          [('r', 'rev', '', _('search the repository as it stood at rev')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('f', 'fullpath', None,
            _('print complete paths from the filesystem root')),
          ] + walkopts,
          _('hg locate [OPTION]... [PATTERN]...')),
     "^log|history":
         (log,
          [('f', 'follow', None,
            _('follow changeset history, or file history across copies and renames')),
           ('', 'follow-first', None,
            _('only follow the first parent of merge changesets')),
           ('d', 'date', '', _('show revs matching date spec')),
           ('C', 'copies', None, _('show copied files')),
           ('k', 'keyword', [], _('do case-insensitive search for a keyword')),
           ('l', 'limit', '', _('limit number of changes displayed')),
           ('r', 'rev', [], _('show the specified revision or range')),
           ('', 'removed', None, _('include revs where files were removed')),
           ('M', 'no-merges', None, _('do not show merges')),
           ('', 'style', '', _('display using template map file')),
           ('m', 'only-merges', None, _('show only merges')),
           ('p', 'patch', None, _('show patch')),
           ('P', 'prune', [], _('do not display revision or any of its ancestors')),
           ('', 'template', '', _('display with template')),
          ] + walkopts,
          _('hg log [OPTION]... [FILE]')),
     "manifest":
         (manifest,
          [('r', 'rev', '', _('revision to display'))],
          _('hg manifest [-r REV]')),
     "^merge":
         (merge,
          [('f', 'force', None, _('force a merge with outstanding changes')),
           ('r', 'rev', '', _('revision to merge')),
              ],
          _('hg merge [-f] [[-r] REV]')),
     "outgoing|out":
         (outgoing,
          [('M', 'no-merges', None, _('do not show merges')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('p', 'patch', None, _('show patch')),
           ('', 'style', '', _('display using template map file')),
           ('r', 'rev', [], _('a specific revision you would like to push')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'template', '', _('display with template')),
          ] + remoteopts,
          _('hg outgoing [-M] [-p] [-n] [-f] [-r REV]... [DEST]')),
     "^parents":
         (parents,
          [('r', 'rev', '', _('show parents from the specified rev')),
           ('', 'style', '', _('display using template map file')),
           ('', 'template', '', _('display with template'))],
          _('hg parents [-r REV] [FILE]')),
     "paths": (paths, [], _('hg paths [NAME]')),
     "^pull":
         (pull,
          [('u', 'update', None,
            _('update to new tip if changesets were pulled')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a specific revision up to which you would like to pull')),
          ] + remoteopts,
          _('hg pull [-u] [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [SOURCE]')),
     "^push":
         (push,
          [('f', 'force', None, _('force push')),
           ('r', 'rev', [], _('a specific revision you would like to push')),
          ] + remoteopts,
          _('hg push [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]')),
     "recover": (recover, [], _('hg recover')),
     "^remove|rm":
         (remove,
          [('A', 'after', None, _('record remove without deleting')),
           ('f', 'force', None, _('remove file even if modified')),
          ] + walkopts,
          _('hg remove [OPTION]... FILE...')),
     "rename|mv":
         (rename,
          [('A', 'after', None, _('record a rename that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('hg rename [OPTION]... SOURCE... DEST')),
     "revert":
         (revert,
          [('a', 'all', None, _('revert all changes when no arguments given')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision to revert to')),
           ('', 'no-backup', None, _('do not save backup copies of files')),
          ] + walkopts + dryrunopts,
          _('hg revert [OPTION]... [-r REV] [NAME]...')),
     "rollback": (rollback, [], _('hg rollback')),
     "root": (root, [], _('hg root')),
     "^serve":
         (serve,
          [('A', 'accesslog', '', _('name of access log file to write to')),
           ('d', 'daemon', None, _('run server in background')),
           ('', 'daemon-pipefds', '', _('used internally by daemon mode')),
           ('E', 'errorlog', '', _('name of error log file to write to')),
           ('p', 'port', 0, _('port to use (default: 8000)')),
           ('a', 'address', '', _('address to use')),
           ('', 'prefix', '', _('prefix path to serve from (default: server root)')),
           ('n', 'name', '',
            _('name to show in web pages (default: working dir)')),
           ('', 'webdir-conf', '', _('name of the webdir config file'
                                     ' (serve more than one repo)')),
           ('', 'pid-file', '', _('name of file to write process ID to')),
           ('', 'stdio', None, _('for remote clients')),
           ('t', 'templates', '', _('web templates to use')),
           ('', 'style', '', _('template style to use')),
           ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
           ('', 'certificate', '', _('SSL certificate file'))],
          _('hg serve [OPTION]...')),
     "showconfig|debugconfig":
         (showconfig,
          [('u', 'untrusted', None, _('show untrusted configuration options'))],
          _('hg showconfig [-u] [NAME]...')),
     "^status|st":
         (status,
          [('A', 'all', None, _('show status of all files')),
           ('m', 'modified', None, _('show only modified files')),
           ('a', 'added', None, _('show only added files')),
           ('r', 'removed', None, _('show only removed files')),
           ('d', 'deleted', None, _('show only deleted (but tracked) files')),
           ('c', 'clean', None, _('show only files without changes')),
           ('u', 'unknown', None, _('show only unknown (not tracked) files')),
           ('i', 'ignored', None, _('show only ignored files')),
           ('n', 'no-status', None, _('hide status prefix')),
           ('C', 'copies', None, _('show source of copied files')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('', 'rev', [], _('show difference from revision')),
          ] + walkopts,
          _('hg status [OPTION]... [FILE]...')),
     "tag":
         (tag,
          [('f', 'force', None, _('replace existing tag')),
           ('l', 'local', None, _('make the tag local')),
           ('r', 'rev', '', _('revision to tag')),
           ('', 'remove', None, _('remove a tag')),
           # -l/--local is already there, commitopts cannot be used
           ('m', 'message', '', _('use <text> as commit message')),
          ] + commitopts2,
          _('hg tag [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME')),
     "tags": (tags, [], _('hg tags')),
     "tip":
         (tip,
          [('', 'style', '', _('display using template map file')),
           ('p', 'patch', None, _('show patch')),
           ('', 'template', '', _('display with template'))],
          _('hg tip [-p]')),
     "unbundle":
         (unbundle,
          [('u', 'update', None,
            _('update to new tip if changesets were unbundled'))],
          _('hg unbundle [-u] FILE...')),
     "^update|up|checkout|co":
         (update,
          [('C', 'clean', None, _('overwrite locally modified files')),
           ('d', 'date', '', _('tipmost revision matching date')),
           ('r', 'rev', '', _('revision'))],
          _('hg update [-C] [-d DATE] [[-r] REV]')),
     "verify": (verify, [], _('hg verify')),
     "version": (version_, [], _('hg version')),
 }
 
 norepo = ("clone init version help debugancestor debugcomplete debugdata"
           " debugindex debugindexdot debugdate debuginstall debugfsinfo")
 optionalrepo = ("identify paths serve showconfig")

mercurial/filemerge.py

@@ -1,65 +1,168 b''
 # filemerge.py - file-level merge handling for Mercurial
 #
 # Copyright 2006, 2007, 2008 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 from node import *
 from i18n import _
-import util, os, tempfile, context
+import util, os, tempfile, context, simplemerge, re
+
+def _toolstr(ui, tool, part, default=None):
+    return ui.config("merge-tools", tool + "." + part, default)
+
+def _toolbool(ui, tool, part, default=False):
+    return ui.configbool("merge-tools", tool + "." + part, default)
+
+def _findtool(ui, tool):
+    return util.find_exe(_toolstr(ui, tool, "executable", tool))
+
+def _picktool(repo, ui, path, binary, symlink):
+    def check(tool, pat, symlink, binary):
+        tmsg = tool
+        if pat:
+            tmsg += " specified for " + pat
+        if pat and not _findtool(ui, tool): # skip search if not matching
+            ui.warn(_("couldn't find merge tool %s\n") % tmsg)
+        elif symlink and not _toolbool(ui, tool, "symlink"):
+            ui.warn(_("tool %s can't handle symlinks\n") % tmsg)
+        elif binary and not _toolbool(ui, tool, "binary"):
+            ui.warn(_("tool %s can't handle binary\n") % tmsg)
+        else:
+            return True
+        return False
+
+    # HGMERGE takes precedence
+    if os.environ.get("HGMERGE"):
+        return os.environ.get("HGMERGE")
+
+    # then patterns
+    for pattern, tool in ui.configitems("merge-patterns"):
+        mf = util.matcher(repo.root, "", [pat], [], [])[1]
+        if mf(path) and check(tool, pat, symlink, False):
+                return tool
+
+    # then merge tools
+    tools = {}
+    for k,v in ui.configitems("merge-tools"):
+        t = k.split('.')[0]
+        if t not in tools:
+            tools[t] = int(_toolstr(ui, t, "priority", "0"))
+    tools = [(-p,t) for t,p in tools.items()]
+    tools.sort()
+    if ui.config("ui", "merge"):
+        tools.insert(0, (None, ui.config("ui", "merge"))) # highest priority
+    tools.append((None, "hgmerge")) # the old default, if found
+    tools.append((None, "internal:merge")) # internal merge as last resort
+    for p,t in tools:
+        if _findtool(ui, t) and check(t, None, symlink, binary):
+            return t
 
 def filemerge(repo, fw, fd, fo, wctx, mctx):
     """perform a 3-way merge in the working directory
 
     fw = original filename in the working directory
     fd = destination filename in the working directory
     fo = filename in other parent
     wctx, mctx = working and merge changecontexts
     """
 
     def temp(prefix, ctx):
         pre = "%s~%s." % (os.path.basename(ctx.path()), prefix)
         (fd, name) = tempfile.mkstemp(prefix=pre)
         data = repo.wwritedata(ctx.path(), ctx.data())
         f = os.fdopen(fd, "wb")
         f.write(data)
         f.close()
         return name
 
-    fcm = wctx.filectx(fw)
-    fcmdata = wctx.filectx(fd).data()
+    def isbin(ctx):
+        try:
+            return util.binary(ctx.data())
+        except IOError:
+            return False
+
     fco = mctx.filectx(fo)
-
-    if not fco.cmp(fcmdata): # files identical?
+    if not fco.cmp(wctx.filectx(fd).data()): # files identical?
         return None
 
-    fca = fcm.ancestor(fco)
-    if not fca:
-        fca = repo.filectx(fw, fileid=nullrev)
+    ui = repo.ui
+    fcm = wctx.filectx(fw)
+    fca = fcm.ancestor(fco) or repo.filectx(fw, fileid=nullrev)
+    binary = isbin(fcm) or isbin(fco) or isbin(fca)
+    symlink = fcm.islink() or fco.islink()
+    tool = _picktool(repo, ui, fw, binary, symlink)
+    ui.debug(_("picked tool '%s' for %s (binary %s symlink %s)\n") %
+               (tool, fw, binary, symlink))
+
+    if not tool:
+        tool = "internal:local"
+        if ui.prompt(_(" no tool found to merge %s\n"
+                       "keep (l)ocal or take (o)ther?") % fw,
+                     _("[lo]"), _("l")) != _("l"):
+            tool = "internal:other"
+    if tool == "internal:local":
+        return 0
+    if tool == "internal:other":
+        repo.wwrite(fd, fco.data(), fco.fileflags())
+        return 0
+    if tool == "internal:fail":
+        return 1
+
+    # do the actual merge
     a = repo.wjoin(fd)
     b = temp("base", fca)
     c = temp("other", fco)
+    out = ""
+    back = a + ".orig"
+    util.copyfile(a, back)
 
     if fw != fo:
         repo.ui.status(_("merging %s and %s\n") % (fw, fo))
     else:
         repo.ui.status(_("merging %s\n") % fw)
-
     repo.ui.debug(_("my %s other %s ancestor %s\n") % (fcm, fco, fca))
 
-    cmd = (os.environ.get("HGMERGE") or repo.ui.config("ui", "merge")
-           or "hgmerge")
-    r = util.system('%s "%s" "%s" "%s"' % (cmd, a, b, c), cwd=repo.root,
-                    environ={'HG_FILE': fd,
-                             'HG_MY_NODE': str(wctx.parents()[0]),
-                             'HG_OTHER_NODE': str(mctx),
-                             'HG_MY_ISLINK': fcm.islink(),
-                             'HG_OTHER_ISLINK': fco.islink(),
-                             'HG_BASE_ISLINK': fca.islink(),})
+    # do we attempt to simplemerge first?
+    if _toolbool(ui, tool, "premerge", not (binary or symlink)):
+        r = simplemerge.simplemerge(a, b, c, quiet=True)
+        if not r:
+            ui.debug(_(" premerge successful\n"))
+            os.unlink(back)
+            os.unlink(b)
+            os.unlink(c)
+            return 0
+        util.copyfile(back, a) # restore from backup and try again
+
+    env = dict(HG_FILE=fd,
+               HG_MY_NODE=str(wctx.parents()[0]),
+               HG_OTHER_NODE=str(mctx),
+               HG_MY_ISLINK=fcm.islink(),
+               HG_OTHER_ISLINK=fco.islink(),
+               HG_BASE_ISLINK=fca.islink())
+
+    if tool == "internal:merge":
+        r = simplemerge.simplemerge(a, b, c, label=['local', 'other'])
+    else:
+        toolpath = _findtool(ui, tool)
+        args = _toolstr(ui, tool, "args", '$local $base $other')
+        if "$output" in args:
+            out, a = a, back # read input from backup, write to original
+        replace = dict(local=a, base=b, other=c, output=out)
+        args = re.sub("\$(local|base|other|output)",
+                      lambda x: '"%s"' % replace[x.group()[1:]], args)
+        r = util.system(toolpath + ' ' + args, cwd=repo.root, environ=env)
+
+    if not r and _toolbool(ui, tool, "checkconflicts"):
+        if re.match("^(<<<<<<< .*|=======|>>>>>>> .*)$", fcm.data()):
+            r = 1
+
     if r:
         repo.ui.warn(_("merging %s failed!\n") % fd)
+    else:
+        os.unlink(back)
 
     os.unlink(b)
     os.unlink(c)
     return r

tests/run-tests.py

@@ -1,590 +1,588 b''
 #!/usr/bin/env python
 #
 # run-tests.py - Run a set of tests on Mercurial
 #
 # Copyright 2006 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 import difflib
 import errno
 import optparse
 import os
 import popen2
 import re
 import shutil
 import signal
 import sys
 import tempfile
 import time
 
 # reserved exit code to skip test (used by hghave)
 SKIPPED_STATUS = 80
 SKIPPED_PREFIX = 'skipped: '
 
 required_tools = ["python", "diff", "grep", "unzip", "gunzip", "bunzip2", "sed"]
 
 parser = optparse.OptionParser("%prog [options] [tests]")
 parser.add_option("-C", "--annotate", action="store_true",
     help="output files annotated with coverage")
 parser.add_option("--child", type="int",
     help="run as child process, summary to given fd")
 parser.add_option("-c", "--cover", action="store_true",
     help="print a test coverage report")
 parser.add_option("-f", "--first", action="store_true",
     help="exit on the first test failure")
 parser.add_option("-i", "--interactive", action="store_true",
     help="prompt to accept changed output")
 parser.add_option("-j", "--jobs", type="int",
     help="number of jobs to run in parallel")
 parser.add_option("-R", "--restart", action="store_true",
     help="restart at last error")
 parser.add_option("-p", "--port", type="int",
     help="port on which servers should listen")
 parser.add_option("-r", "--retest", action="store_true",
     help="retest failed tests")
 parser.add_option("-s", "--cover_stdlib", action="store_true",
     help="print a test coverage report inc. standard libraries")
 parser.add_option("-t", "--timeout", type="int",
     help="kill errant tests after TIMEOUT seconds")
 parser.add_option("--tmpdir", type="string",
     help="run tests in the given temporary directory")
 parser.add_option("-v", "--verbose", action="store_true",
     help="output verbose messages")
 parser.add_option("--with-hg", type="string",
     help="test existing install at given location")
 
 parser.set_defaults(jobs=1, port=20059, timeout=180)
 (options, args) = parser.parse_args()
 verbose = options.verbose
 coverage = options.cover or options.cover_stdlib or options.annotate
 python = sys.executable
 
 if options.jobs < 1:
     print >> sys.stderr, 'ERROR: -j/--jobs must be positive'
     sys.exit(1)
 if options.interactive and options.jobs > 1:
     print >> sys.stderr, 'ERROR: cannot mix -interactive and --jobs > 1'
     sys.exit(1)
 
 def rename(src, dst):
     """Like os.rename(), trade atomicity and opened files friendliness
     for existing destination support.
     """
     shutil.copy(src, dst)
     os.remove(src)
 
 def vlog(*msg):
     if verbose:
         for m in msg:
             print m,
         print
 
 def splitnewlines(text):
     '''like str.splitlines, but only split on newlines.
     keep line endings.'''
     i = 0
     lines = []
     while True:
         n = text.find('\n', i)
         if n == -1:
             last = text[i:]
             if last:
                 lines.append(last)
             return lines
         lines.append(text[i:n+1])
         i = n + 1
 
 def extract_missing_features(lines):
     '''Extract missing/unknown features log lines as a list'''
     missing = []
     for line in lines:
         if not line.startswith(SKIPPED_PREFIX):
             continue
         line = line.splitlines()[0]
         missing.append(line[len(SKIPPED_PREFIX):])
 
     return missing
 
 def show_diff(expected, output):
     for line in difflib.unified_diff(expected, output,
             "Expected output", "Test output"):
         sys.stdout.write(line)
 
 def find_program(program):
     """Search PATH for a executable program"""
     for p in os.environ.get('PATH', os.defpath).split(os.pathsep):
         name = os.path.join(p, program)
         if os.access(name, os.X_OK):
             return name
     return None
 
 def check_required_tools():
     # Before we go any further, check for pre-requisite tools
     # stuff from coreutils (cat, rm, etc) are not tested
     for p in required_tools:
         if os.name == 'nt':
             p += '.exe'
         found = find_program(p)
         if found:
             vlog("# Found prerequisite", p, "at", found)
         else:
             print "WARNING: Did not find prerequisite tool: "+p
 
 def cleanup_exit():
     if verbose:
         print "# Cleaning up HGTMP", HGTMP
     shutil.rmtree(HGTMP, True)
 
 def use_correct_python():
     # some tests run python interpreter. they must use same
     # interpreter we use or bad things will happen.
     exedir, exename = os.path.split(sys.executable)
     if exename == 'python':
         path = find_program('python')
         if os.path.dirname(path) == exedir:
             return
     vlog('# Making python executable in test path use correct Python')
     my_python = os.path.join(BINDIR, 'python')
     try:
         os.symlink(sys.executable, my_python)
     except AttributeError:
         # windows fallback
         shutil.copyfile(sys.executable, my_python)
         shutil.copymode(sys.executable, my_python)
 
 def install_hg():
     global python
     vlog("# Performing temporary installation of HG")
     installerrs = os.path.join("tests", "install.err")
 
     # Run installer in hg root
     os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '..'))
     cmd = ('%s setup.py clean --all'
            ' install --force --home="%s" --install-lib="%s"'
            ' --install-scripts="%s" >%s 2>&1'
            % (sys.executable, INST, PYTHONDIR, BINDIR, installerrs))
     vlog("# Running", cmd)
     if os.system(cmd) == 0:
         if not verbose:
             os.remove(installerrs)
     else:
         f = open(installerrs)
         for line in f:
             print line,
         f.close()
         sys.exit(1)
     os.chdir(TESTDIR)
 
     os.environ["PATH"] = "%s%s%s" % (BINDIR, os.pathsep, os.environ["PATH"])
 
     pydir = os.pathsep.join([PYTHONDIR, TESTDIR])
     pythonpath = os.environ.get("PYTHONPATH")
     if pythonpath:
         pythonpath = pydir + os.pathsep + pythonpath
     else:
         pythonpath = pydir
     os.environ["PYTHONPATH"] = pythonpath
 
     use_correct_python()
 
     if coverage:
         vlog("# Installing coverage wrapper")
         os.environ['COVERAGE_FILE'] = COVERAGE_FILE
         if os.path.exists(COVERAGE_FILE):
             os.unlink(COVERAGE_FILE)
         # Create a wrapper script to invoke hg via coverage.py
         os.rename(os.path.join(BINDIR, "hg"), os.path.join(BINDIR, "_hg.py"))
         f = open(os.path.join(BINDIR, 'hg'), 'w')
         f.write('#!' + sys.executable + '\n')
         f.write('import sys, os; os.execv(sys.executable, [sys.executable, '
                 '"%s", "-x", "%s"] + sys.argv[1:])\n' %
                 (os.path.join(TESTDIR, 'coverage.py'),
                  os.path.join(BINDIR, '_hg.py')))
         f.close()
         os.chmod(os.path.join(BINDIR, 'hg'), 0700)
         python = '"%s" "%s" -x' % (sys.executable,
                                    os.path.join(TESTDIR,'coverage.py'))
 
 def output_coverage():
     vlog("# Producing coverage report")
     omit = [BINDIR, TESTDIR, PYTHONDIR]
     if not options.cover_stdlib:
         # Exclude as system paths (ignoring empty strings seen on win)
         omit += [x for x in sys.path if x != '']
     omit = ','.join(omit)
     os.chdir(PYTHONDIR)
     cmd = '"%s" "%s" -i -r "--omit=%s"' % (
         sys.executable, os.path.join(TESTDIR, 'coverage.py'), omit)
     vlog("# Running: "+cmd)
     os.system(cmd)
     if options.annotate:
         adir = os.path.join(TESTDIR, 'annotated')
         if not os.path.isdir(adir):
             os.mkdir(adir)
         cmd = '"%s" "%s" -i -a "--directory=%s" "--omit=%s"' % (
             sys.executable, os.path.join(TESTDIR, 'coverage.py'),
             adir, omit)
         vlog("# Running: "+cmd)
         os.system(cmd)
 
 class Timeout(Exception):
     pass
 
 def alarmed(signum, frame):
     raise Timeout
 
 def run(cmd):
     """Run command in a sub-process, capturing the output (stdout and stderr).
     Return the exist code, and output."""
     # TODO: Use subprocess.Popen if we're running on Python 2.4
     if os.name == 'nt':
         tochild, fromchild = os.popen4(cmd)
         tochild.close()
         output = fromchild.read()
         ret = fromchild.close()
         if ret == None:
             ret = 0
     else:
         proc = popen2.Popen4(cmd)
         try:
             output = ''
             proc.tochild.close()
             output = proc.fromchild.read()
             ret = proc.wait()
             if os.WIFEXITED(ret):
                 ret = os.WEXITSTATUS(ret)
         except Timeout:
             vlog('# Process %d timed out - killing it' % proc.pid)
             os.kill(proc.pid, signal.SIGTERM)
             ret = proc.wait()
             if ret == 0:
                 ret = signal.SIGTERM << 8
             output += ("\n### Abort: timeout after %d seconds.\n"
                        % options.timeout)
     return ret, splitnewlines(output)
 
 def run_one(test, skips):
     '''tristate output:
     None -> skipped
     True -> passed
     False -> failed'''
 
     def skip(msg):
         if not verbose:
             skips.append((test, msg))
         else:
             print "\nSkipping %s: %s" % (test, msg)
         return None
 
     vlog("# Test", test)
 
     # create a fresh hgrc
     hgrc = file(HGRCPATH, 'w+')
     hgrc.write('[ui]\n')
     hgrc.write('slash = True\n')
     hgrc.write('[defaults]\n')
     hgrc.write('backout = -d "0 0"\n')
     hgrc.write('commit = -d "0 0"\n')
     hgrc.write('debugrawcommit = -d "0 0"\n')
     hgrc.write('tag = -d "0 0"\n')
     hgrc.close()
 
     err = os.path.join(TESTDIR, test+".err")
     ref = os.path.join(TESTDIR, test+".out")
     testpath = os.path.join(TESTDIR, test)
 
     if os.path.exists(err):
         os.remove(err)       # Remove any previous output files
 
     # Make a tmp subdirectory to work in
     tmpd = os.path.join(HGTMP, test)
     os.mkdir(tmpd)
     os.chdir(tmpd)
 
     try:
         tf = open(testpath)
         firstline = tf.readline().rstrip()
         tf.close()
     except:
         firstline = ''
     lctest = test.lower()
 
     if lctest.endswith('.py') or firstline == '#!/usr/bin/env python':
         cmd = '%s "%s"' % (python, testpath)
     elif lctest.endswith('.bat'):
         # do not run batch scripts on non-windows
         if os.name != 'nt':
             return skip("batch script")
         # To reliably get the error code from batch files on WinXP,
         # the "cmd /c call" prefix is needed. Grrr
         cmd = 'cmd /c call "%s"' % testpath
     else:
         # do not run shell scripts on windows
         if os.name == 'nt':
             return skip("shell script")
         # do not try to run non-executable programs
         if not os.access(testpath, os.X_OK):
             return skip("not executable")
         cmd = '"%s"' % testpath
 
     if options.timeout > 0:
         signal.alarm(options.timeout)
 
     vlog("# Running", cmd)
     ret, out = run(cmd)
     vlog("# Ret was:", ret)
 
     if options.timeout > 0:
         signal.alarm(0)
 
     skipped = (ret == SKIPPED_STATUS)
     diffret = 0
     # If reference output file exists, check test output against it
     if os.path.exists(ref):
         f = open(ref, "r")
         ref_out = splitnewlines(f.read())
         f.close()
     else:
         ref_out = []
     if not skipped and out != ref_out:
         diffret = 1
         print "\nERROR: %s output changed" % (test)
         show_diff(ref_out, out)
     if skipped:
         missing = extract_missing_features(out)
         if not missing:
             missing = ['irrelevant']
         skip(missing[-1])
     elif ret:
         print "\nERROR: %s failed with error code %d" % (test, ret)
     elif diffret:
         ret = diffret
 
     if not verbose:
         sys.stdout.write(skipped and 's' or '.')
         sys.stdout.flush()
 
     if ret != 0 and not skipped:
         # Save errors to a file for diagnosis
         f = open(err, "wb")
         for line in out:
             f.write(line)
         f.close()
 
     # Kill off any leftover daemon processes
     try:
         fp = file(DAEMON_PIDS)
         for line in fp:
             try:
                 pid = int(line)
             except ValueError:
                 continue
             try:
                 os.kill(pid, 0)
                 vlog('# Killing daemon process %d' % pid)
                 os.kill(pid, signal.SIGTERM)
                 time.sleep(0.25)
                 os.kill(pid, 0)
                 vlog('# Daemon process %d is stuck - really killing it' % pid)
                 os.kill(pid, signal.SIGKILL)
             except OSError, err:
                 if err.errno != errno.ESRCH:
                     raise
         fp.close()
         os.unlink(DAEMON_PIDS)
     except IOError:
         pass
 
     os.chdir(TESTDIR)
     shutil.rmtree(tmpd, True)
     if skipped:
         return None
     return ret == 0
 
 if not options.child:
     os.umask(022)
 
     check_required_tools()
 
 # Reset some environment variables to well-known values so that
 # the tests produce repeatable output.
 os.environ['LANG'] = os.environ['LC_ALL'] = 'C'
 os.environ['TZ'] = 'GMT'
 os.environ["EMAIL"] = "Foo Bar <[e-mail]>"
 
 TESTDIR = os.environ["TESTDIR"] = os.getcwd()
 HGTMP = os.environ['HGTMP'] = tempfile.mkdtemp('', 'hgtests.', options.tmpdir)
 DAEMON_PIDS = None
 HGRCPATH = None
 
 os.environ["HGEDITOR"] = sys.executable + ' -c "import sys; sys.exit(0)"'
-os.environ["HGMERGE"]  = ('python "%s" -L my -L other'
-                          % os.path.join(TESTDIR, os.path.pardir,
-                                         'contrib', 'simplemerge'))
+os.environ["HGMERGE"] = "internal:merge"
 os.environ["HGUSER"]   = "test"
 os.environ["HGENCODING"] = "ascii"
 os.environ["HGENCODINGMODE"] = "strict"
 os.environ["HGPORT"] = str(options.port)
 os.environ["HGPORT1"] = str(options.port + 1)
 os.environ["HGPORT2"] = str(options.port + 2)
 
 if options.with_hg:
     INST = options.with_hg
 else:
     INST = os.path.join(HGTMP, "install")
 BINDIR = os.path.join(INST, "bin")
 PYTHONDIR = os.path.join(INST, "lib", "python")
 COVERAGE_FILE = os.path.join(TESTDIR, ".coverage")
 
 def run_children(tests):
     if not options.with_hg:
         install_hg()
 
     optcopy = dict(options.__dict__)
     optcopy['jobs'] = 1
     optcopy['with_hg'] = INST
     opts = []
     for opt, value in optcopy.iteritems():
         name = '--' + opt.replace('_', '-')
         if value is True:
             opts.append(name)
         elif value is not None:
             opts.append(name + '=' + str(value))
 
     tests.reverse()
     jobs = [[] for j in xrange(options.jobs)]
     while tests:
         for j in xrange(options.jobs):
             if not tests: break
             jobs[j].append(tests.pop())
     fps = {}
     for j in xrange(len(jobs)):
         job = jobs[j]
         if not job:
             continue
         rfd, wfd = os.pipe()
         childopts = ['--child=%d' % wfd, '--port=%d' % (options.port + j * 3)]
         cmdline = [python, sys.argv[0]] + opts + childopts + job
         vlog(' '.join(cmdline))
         fps[os.spawnvp(os.P_NOWAIT, cmdline[0], cmdline)] = os.fdopen(rfd, 'r')
         os.close(wfd)
     failures = 0
     tested, skipped, failed = 0, 0, 0
     skips = []
     while fps:
         pid, status = os.wait()
         fp = fps.pop(pid)
         l = fp.read().splitlines()
         test, skip, fail = map(int, l[:3])
         for s in l[3:]:
             skips.append(s.split(" ", 1))
         tested += test
         skipped += skip
         failed += fail
         vlog('pid %d exited, status %d' % (pid, status))
         failures |= status
     print
     for s in skips:
         print "Skipped %s: %s" % (s[0], s[1])
     print "# Ran %d tests, %d skipped, %d failed." % (
         tested, skipped, failed)
     sys.exit(failures != 0)
 
 def run_tests(tests):
     global DAEMON_PIDS, HGRCPATH
     DAEMON_PIDS = os.environ["DAEMON_PIDS"] = os.path.join(HGTMP, 'daemon.pids')
     HGRCPATH = os.environ["HGRCPATH"] = os.path.join(HGTMP, '.hgrc')
 
     try:
         if not options.with_hg:
             install_hg()
 
         if options.timeout > 0:
             try:
                 signal.signal(signal.SIGALRM, alarmed)
                 vlog('# Running tests with %d-second timeout' %
                      options.timeout)
             except AttributeError:
                 print 'WARNING: cannot run tests with timeouts'
                 options.timeout = 0
 
         tested = 0
         failed = 0
         skipped = 0
 
         if options.restart:
             orig = list(tests)
             while tests:
                 if os.path.exists(tests[0] + ".err"):
                     break
                 tests.pop(0)
             if not tests:
                 print "running all tests"
                 tests = orig
 
         skips = []
         for test in tests:
             if options.retest and not os.path.exists(test + ".err"):
                 skipped += 1
                 continue
             ret = run_one(test, skips)
             if ret is None:
                 skipped += 1
             elif not ret:
                 if options.interactive:
                     print "Accept this change? [n] ",
                     answer = sys.stdin.readline().strip()
                     if answer.lower() in "y yes".split():
                         rename(test + ".err", test + ".out")
                         tested += 1
                         continue
                 failed += 1
                 if options.first:
                     break
             tested += 1
 
         if options.child:
             fp = os.fdopen(options.child, 'w')
             fp.write('%d\n%d\n%d\n' % (tested, skipped, failed))
             for s in skips:
                 fp.write("%s %s\n" % s)
             fp.close()
         else:
             print
             for s in skips:
                 print "Skipped %s: %s" % s
             print "# Ran %d tests, %d skipped, %d failed." % (
                 tested, skipped, failed)
 
         if coverage:
             output_coverage()
     except KeyboardInterrupt:
         failed = True
         print "\ninterrupted!"
 
     if failed:
         sys.exit(1)
 
 if len(args) == 0:
     args = os.listdir(".")
     args.sort()
 
 tests = []
 for test in args:
     if (test.startswith("test-") and '~' not in test and
         ('.' not in test or test.endswith('.py') or
          test.endswith('.bat'))):
         tests.append(test)
 
 vlog("# Using TESTDIR", TESTDIR)
 vlog("# Using HGTMP", HGTMP)
 
 try:
     if len(tests) > 1 and options.jobs > 1:
         run_children(tests)
     else:
         run_tests(tests)
 finally:
     cleanup_exit()

tests/test-add.out

@@ -1,33 +1,38 b''
 adding a
 ? a
 adding a
 A a
 A a
 ? b
 A a
 A b
 % should fail
 b already tracked!
 A a
 A b
 % should fail
 a already tracked!
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+merging a
 warning: conflicts during merge.
-merging a
 merging a failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 2
   hg merge 1
 M a
+? a.orig
 % should fail
 a already tracked!
 M a
+? a.orig
 % issue683
 R a
+? a.orig
 M a
+? a.orig
 c does not exist!
 d does not exist!
 M a
 A c
+? a.orig

tests/test-conflict.out

@@ -1,15 +1,16 b''
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+merging a
 warning: conflicts during merge.
-merging a
 merging a failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 2
   hg merge 1
 e7fe8eb3e180+0d24b7662d3e+ tip
-<<<<<<< my
+<<<<<<< local
 something else
 =======
 something
 >>>>>>> other
 M a
+? a.orig

tests/test-convert-svn-sink.out

@@ -1,338 +1,338 b''
 % add
 adding a
 adding d1/d2/b
 % modify
 1:e0e2b8a9156b
 assuming destination a-hg
 initializing svn repo 'a-hg'
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 1 add a file
 0 modify a file
 At revision 2.
                 2        2 test         .
                 2        2 test         a
                 2        1 test         d1
                 2        1 test         d1/d2
                 2        1 test         d1/d2/b
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="2">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="M">/a</path>
 </paths>
 <msg>modify a file</msg>
 </logentry>
 <logentry
    revision="1">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="A">/a</path>
 <path
    action="A">/d1</path>
 <path
    action="A">/d1/d2</path>
 <path
    action="A">/d1/d2/b</path>
 </paths>
 <msg>add a file</msg>
 </logentry>
 </log>
 a:
 a
 d1
 
 a-hg-wc:
 a
 d1
 same
 % rename
 2:7009fc4efb34
 assuming destination a-hg
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 rename a file
 At revision 3.
                 3        3 test         .
                 3        3 test         b
                 3        1 test         d1
                 3        1 test         d1/d2
                 3        1 test         d1/d2/b
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="3">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="D">/a</path>
 <path
    copyfrom-path="/a"
    copyfrom-rev="2"
    action="A">/b</path>
 </paths>
 <msg>rename a file</msg>
 </logentry>
 </log>
 a:
 b
 d1
 
 a-hg-wc:
 b
 d1
 % copy
 3:56c519973ce6
 assuming destination a-hg
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 copy a file
 At revision 4.
                 4        4 test         .
                 4        3 test         b
                 4        4 test         c
                 4        1 test         d1
                 4        1 test         d1/d2
                 4        1 test         d1/d2/b
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="4">
 <author>test</author>
 <date/>
 <paths>
 <path
    copyfrom-path="/b"
    copyfrom-rev="3"
    action="A">/c</path>
 </paths>
 <msg>copy a file</msg>
 </logentry>
 </log>
 a:
 b
 c
 d1
 
 a-hg-wc:
 b
 c
 d1
 % remove
 4:ed4dc9a6f585
 assuming destination a-hg
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 remove a file
 At revision 5.
                 5        5 test         .
                 5        4 test         c
                 5        1 test         d1
                 5        1 test         d1/d2
                 5        1 test         d1/d2/b
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="5">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="D">/b</path>
 </paths>
 <msg>remove a file</msg>
 </logentry>
 </log>
 a:
 c
 d1
 
 a-hg-wc:
 c
 d1
 % executable
 5:f205b3636d77
 assuming destination a-hg
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 make a file executable
 At revision 6.
                 6        6 test         .
                 6        6 test         c
                 6        1 test         d1
                 6        1 test         d1/d2
                 6        1 test         d1/d2/b
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="6">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="M">/c</path>
 </paths>
 <msg>make a file executable</msg>
 </logentry>
 </log>
 executable
 % executable in new directory
 adding d1/a
 assuming destination a-hg
 initializing svn repo 'a-hg'
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 add executable file in new directory
 At revision 1.
                 1        1 test         .
                 1        1 test         d1
                 1        1 test         d1/a
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="1">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="A">/d1</path>
 <path
    action="A">/d1/a</path>
 </paths>
 <msg>add executable file in new directory</msg>
 </logentry>
 </log>
 executable
 % copy to new directory
 assuming destination a-hg
 initializing svn wc 'a-hg-wc'
 scanning source...
 sorting...
 converting...
 0 copy file to new directory
 At revision 2.
                 2        2 test         .
                 2        1 test         d1
                 2        1 test         d1/a
                 2        2 test         d2
                 2        2 test         d2/a
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="2">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="A">/d2</path>
 <path
    copyfrom-path="/d1/a"
    copyfrom-rev="1"
    action="A">/d2/a</path>
 </paths>
 <msg>copy file to new directory</msg>
 </logentry>
 </log>
 % branchy history
 adding b
 adding left-1
 adding left-2
 1 files updated, 0 files merged, 2 files removed, 0 files unresolved
 adding right-1
 adding right-2
 3 files updated, 0 files merged, 2 files removed, 0 files unresolved
+merging b
 warning: conflicts during merge.
-merging b
 merging b failed!
 2 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 2
   hg merge 4
 assuming destination b-hg
 initializing svn repo 'b-hg'
 initializing svn wc 'b-hg-wc'
 scanning source...
 sorting...
 converting...
 5 base
 4 left-1
 3 left-2
 2 right-1
 1 right-2
 0 merge
 % expect 4 changes
 At revision 4.
                 4        4 test         .
                 4        3 test         b
                 4        2 test         left-1
                 4        3 test         left-2
                 4        4 test         right-1
                 4        4 test         right-2
 <?xml version="1.0"?>
 <log>
 <logentry
    revision="4">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="A">/right-1</path>
 <path
    action="A">/right-2</path>
 </paths>
 <msg>merge</msg>
 </logentry>
 <logentry
    revision="3">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="M">/b</path>
 <path
    action="A">/left-2</path>
 </paths>
 <msg>left-2</msg>
 </logentry>
 <logentry
    revision="2">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="M">/b</path>
 <path
    action="A">/left-1</path>
 </paths>
 <msg>left-1</msg>
 </logentry>
 <logentry
    revision="1">
 <author>test</author>
 <date/>
 <paths>
 <path
    action="A">/b</path>
 </paths>
 <msg>base</msg>
 </logentry>
 </log>

tests/test-copy-move-merge.out

@@ -1,31 +1,35 b''
 1 files updated, 0 files merged, 2 files removed, 0 files unresolved
 resolving manifests
  overwrite None partial False
  ancestor 583c7b748052 local fb3948d97f07+ remote 40da226db0f0
   searching for copies back to rev 1
   unmatched files in other:
    b
    c
   all copies found (* = to merge, ! = divergent):
    c -> a *
    b -> a *
   checking for directory renames
  a: remote moved to c -> m
  a: remote moved to b -> m
 copying a to b
 copying a to c
+picked tool 'internal:merge' for a (binary False symlink False)
 merging a and b
 my a@fb3948d97f07+ other b@40da226db0f0 ancestor a@583c7b748052
+ premerge successful
 removing a
+picked tool 'internal:merge' for a (binary False symlink False)
 merging a and c
 my a@fb3948d97f07+ other c@40da226db0f0 ancestor a@583c7b748052
+ premerge successful
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 -- b --
 0
 1
 2
 -- c --
 0
 1
 2

tests/test-double-merge.out

@@ -1,26 +1,30 b''
 resolving manifests
  overwrite None partial False
  ancestor 310fd17130da local 2092631ce82b+ remote 7731dad1c2b9
   searching for copies back to rev 1
   unmatched files in other:
    bar
   all copies found (* = to merge, ! = divergent):
    bar -> foo *
   checking for directory renames
  foo: versions differ -> m
  foo: remote copied to bar -> m
 copying foo to bar
+picked tool 'internal:merge' for foo (binary False symlink False)
 merging foo and bar
 my foo@2092631ce82b+ other bar@7731dad1c2b9 ancestor foo@310fd17130da
+ premerge successful
+picked tool 'internal:merge' for foo (binary False symlink False)
 merging foo
 my foo@2092631ce82b+ other foo@7731dad1c2b9 ancestor foo@310fd17130da
+ premerge successful
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 -- foo --
 line 0
 line 1
 line 2-1
 -- bar --
 line 0
 line 1
 line 2-2

tests/test-install.out

@@ -1,8 +1,7 b''
 Checking encoding (ascii)...
 Checking extensions...
 Checking templates...
 Checking patch...
-Checking merge helper...
 Checking commit editor...
 Checking username...
 No problems detected

tests/test-issue672.out

@@ -1,51 +1,55 b''
 adding 1
 adding 2
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 resolving manifests
  overwrite None partial False
  ancestor 81f4b099af3d local c64f439569a9+ remote 2f8037f47a5c
   searching for copies back to rev 1
   unmatched files in other:
    1a
   all copies found (* = to merge, ! = divergent):
    1a -> 1 
   checking for directory renames
  1: other deleted -> r
  1a: remote created -> g
 removing 1
 getting 1a
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 resolving manifests
  overwrite None partial False
  ancestor c64f439569a9 local ac7575e3c052+ remote 746e9549ea96
   searching for copies back to rev 1
   unmatched files in local:
    1a
   all copies found (* = to merge, ! = divergent):
    1a -> 1 *
   checking for directory renames
  1a: local moved to 1 -> m
+picked tool 'internal:merge' for 1a (binary False symlink False)
 merging 1a and 1
 my 1a@ac7575e3c052+ other 1@746e9549ea96 ancestor 1@81f4b099af3d
+ premerge successful
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 resolving manifests
  overwrite None partial False
  ancestor c64f439569a9 local 746e9549ea96+ remote ac7575e3c052
   searching for copies back to rev 1
   unmatched files in other:
    1a
   all copies found (* = to merge, ! = divergent):
    1a -> 1 *
   checking for directory renames
  1: remote moved to 1a -> m
 copying 1 to 1a
+picked tool 'internal:merge' for 1 (binary False symlink False)
 merging 1 and 1a
 my 1@746e9549ea96+ other 1a@ac7575e3c052 ancestor 1@81f4b099af3d
+ premerge successful
 removing 1
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)

tests/test-merge-commit.out

@@ -1,85 +1,89 b''
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 merging bar and foo
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 % contents of bar should be line0 line1 line2
 line0
 line1
 line2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      77      0       2 da78c0659611 000000000000 000000000000
      1        77      76      0       3 4b358025380b 000000000000 da78c0659611
 bar renamed from foo:9e25c27b87571a1edee5ae4dddee5687746cc8e2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0       7      0       0 690b295714ae 000000000000 000000000000
      1         7      13      1       1 9e25c27b8757 690b295714ae 000000000000
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 4:2d2f9a22c82b 2:0a3ab4856510 
 3:7d3b554bfdf1 2:0a3ab4856510 1:5cd961e4045d 
 2:0a3ab4856510 0:2665aaee66e9 
 1:5cd961e4045d 
 0:2665aaee66e9 
 % this should use bar@rev2 as the ancestor
 resolving manifests
  overwrite None partial False
  ancestor 0a3ab4856510 local 2d2f9a22c82b+ remote 7d3b554bfdf1
   searching for copies back to rev 1
  bar: versions differ -> m
+picked tool 'internal:merge' for bar (binary False symlink False)
 merging bar
 my bar@2d2f9a22c82b+ other bar@7d3b554bfdf1 ancestor bar@0a3ab4856510
+ premerge successful
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 % contents of bar should be line1 line2
 line1
 line2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      77      0       2 da78c0659611 000000000000 000000000000
      1        77      76      0       3 4b358025380b 000000000000 da78c0659611
      2       153       7      2       4 4defe5eec418 da78c0659611 000000000000
      3       160      13      3       5 4663501da27b 4defe5eec418 4b358025380b
 
 
 requesting all changes
 adding changesets
 adding manifests
 adding file changes
 added 3 changesets with 3 changes to 2 files (+1 heads)
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 merging foo and bar
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 % contents of bar should be line0 line1 line2
 line0
 line1
 line2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      77      0       2 da78c0659611 000000000000 000000000000
      1        77      76      0       3 4b358025380b 000000000000 da78c0659611
 bar renamed from foo:9e25c27b87571a1edee5ae4dddee5687746cc8e2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0       7      0       0 690b295714ae 000000000000 000000000000
      1         7      13      1       1 9e25c27b8757 690b295714ae 000000000000
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 4:2d2f9a22c82b 2:0a3ab4856510 
 3:96ab80c60897 1:5cd961e4045d 2:0a3ab4856510 
 2:0a3ab4856510 0:2665aaee66e9 
 1:5cd961e4045d 
 0:2665aaee66e9 
 % this should use bar@rev2 as the ancestor
 resolving manifests
  overwrite None partial False
  ancestor 0a3ab4856510 local 2d2f9a22c82b+ remote 96ab80c60897
   searching for copies back to rev 1
  bar: versions differ -> m
+picked tool 'internal:merge' for bar (binary False symlink False)
 merging bar
 my bar@2d2f9a22c82b+ other bar@96ab80c60897 ancestor bar@0a3ab4856510
+ premerge successful
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 % contents of bar should be line1 line2
 line1
 line2
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      77      0       2 da78c0659611 000000000000 000000000000
      1        77      76      0       3 4b358025380b 000000000000 da78c0659611
      2       153       7      2       4 4defe5eec418 da78c0659611 000000000000
      3       160      13      3       5 4663501da27b 4defe5eec418 4b358025380b

tests/test-merge-local.out

@@ -1,67 +1,69 b''
 # revision 0
 adding copy
 adding move
 adding remove
 adding unchanged
 adding zzz1_merge_ok
 adding zzz2_merge_bad
 # revision 1
 # local changes to revision 0
 4 files updated, 0 files merged, 3 files removed, 0 files unresolved
 --- a/zzz1_merge_ok
 +++ b/zzz1_merge_ok
 +new last line
 --- a/zzz2_merge_bad
 +++ b/zzz2_merge_bad
 +another last line
 M zzz1_merge_ok
 M zzz2_merge_bad
 # local merge with bad merge tool
 merging zzz1_merge_ok
-merging zzz1_merge_ok failed!
 merging zzz2_merge_bad
 merging zzz2_merge_bad failed!
-3 files updated, 0 files merged, 2 files removed, 2 files unresolved
+3 files updated, 1 files merged, 2 files removed, 1 files unresolved
 There are unresolved merges with locally modified files.
-You can redo the full merge using:
+You can finish the partial merge using:
   hg update 0
   hg update 1
 2 files updated, 0 files merged, 3 files removed, 0 files unresolved
 --- a/zzz1_merge_ok
 +++ b/zzz1_merge_ok
++new first line
 +new last line
 --- a/zzz2_merge_bad
 +++ b/zzz2_merge_bad
 +another last line
 M zzz1_merge_ok
 M zzz2_merge_bad
+? zzz2_merge_bad.orig
 # local merge with conflicts
-warning: conflicts during merge.
 merging zzz1_merge_ok
 merging zzz2_merge_bad
+warning: conflicts during merge.
 merging zzz2_merge_bad failed!
 3 files updated, 1 files merged, 2 files removed, 1 files unresolved
 There are unresolved merges with locally modified files.
 You can finish the partial merge using:
   hg update 0
   hg update 1
 2 files updated, 0 files merged, 3 files removed, 0 files unresolved
 --- a/zzz1_merge_ok
 +++ b/zzz1_merge_ok
 +new first line
 +new last line
 --- a/zzz2_merge_bad
 +++ b/zzz2_merge_bad
 +another last line
 +=======
 +new last line
 M zzz1_merge_ok
 M zzz2_merge_bad
+? zzz2_merge_bad.orig
 # local merge without conflicts
 merging zzz1_merge_ok
 4 files updated, 1 files merged, 2 files removed, 0 files unresolved
 --- a/zzz1_merge_ok
 +++ b/zzz1_merge_ok
 +new last line
 M zzz1_merge_ok
 ? zzz2_merge_bad.orig

tests/test-merge-revert2.out

@@ -1,37 +1,41 b''
 1:f248da0d4c3e
 0:9eca13a34789
 f248da0d4c3e tip
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 9eca13a34789
 9eca13a34789+
 reverting file1
 9eca13a34789
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 f248da0d4c3e tip
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+merging file1
 warning: conflicts during merge.
-merging file1
 merging file1 failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges with locally modified files.
 You can redo the full merge using:
   hg update 0
   hg update 1
 diff -r f248da0d4c3e file1
 --- a/file1
 +++ b/file1
 @@ -1,3 +1,7 @@
  added file1
  another line of text
-+<<<<<<< my
++<<<<<<< local
 +changed file1 different
 +=======
  changed file1
 +>>>>>>> other
 M file1
+? file1.orig
 f248da0d4c3e+ tip
 reverting file1
+? file1.orig
 f248da0d4c3e tip
+? file1.orig
 f248da0d4c3e tip
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+? file1.orig
 f248da0d4c3e tip

tests/test-merge7.out

@@ -1,78 +1,79 b''
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 pulling from ../test-a
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files (+1 heads)
 (run 'hg heads' to see heads, 'hg merge' to merge)
+merging test.txt
 warning: conflicts during merge.
-merging test.txt
 merging test.txt failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 1
   hg merge 2
 pulling from ../test-a
 searching for changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files (+1 heads)
 (run 'hg heads' to see heads, 'hg merge' to merge)
-warning: conflicts during merge.
 resolving manifests
  overwrite None partial False
  ancestor faaea63e63a9 local 451c744aabcc+ remote a070d41e8360
   searching for copies back to rev 1
  test.txt: versions differ -> m
+picked tool 'internal:merge' for test.txt (binary False symlink False)
 merging test.txt
 my test.txt@451c744aabcc+ other test.txt@a070d41e8360 ancestor test.txt@faaea63e63a9
+warning: conflicts during merge.
 merging test.txt failed!
 0 files updated, 0 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 3
   hg merge 4
 one
-<<<<<<< my
+<<<<<<< local
 two-point-five
 =======
 two-point-one
 >>>>>>> other
 three
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0       7      0       0 01365c4cca56 000000000000 000000000000
      1         7       9      1       1 7b013192566a 01365c4cca56 000000000000
      2        16      15      2       2 8fe46a3eb557 01365c4cca56 000000000000
      3        31      27      2       3 fc3148072371 7b013192566a 8fe46a3eb557
      4        58      25      4       4 d40249267ae3 8fe46a3eb557 000000000000
 changeset:   4:a070d41e8360
 tag:         tip
 parent:      2:faaea63e63a9
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     two -> two-point-one
 
 changeset:   3:451c744aabcc
 parent:      1:e409be6afcc0
 parent:      2:faaea63e63a9
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     Merge 1
 
 changeset:   2:faaea63e63a9
 parent:      0:095c92b91f1a
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     Numbers as words
 
 changeset:   1:e409be6afcc0
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     2 -> 2.5
 
 changeset:   0:095c92b91f1a
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     Initial
 

tests/test-merge9.out

@@ -1,21 +1,19 b''
 adding bar
 adding foo
 adding quux1
 adding quux2
 merging bar
 merging bar failed!
 merging foo and baz
-merging baz failed!
-1 files updated, 0 files merged, 0 files removed, 2 files unresolved
+1 files updated, 1 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 2
   hg merge 1
 3 files updated, 0 files merged, 1 files removed, 0 files unresolved
 merging bar
 merging bar failed!
 merging baz and foo
-merging baz failed!
-1 files updated, 0 files merged, 0 files removed, 2 files unresolved
+1 files updated, 1 files merged, 0 files removed, 1 files unresolved
 There are unresolved merges, you can redo the full merge using:
   hg update -C 1
   hg merge 2

tests/test-rename-merge1.out

@@ -1,40 +1,42 b''
 checkout
 2 files updated, 0 files merged, 2 files removed, 0 files unresolved
 merge
 resolving manifests
  overwrite None partial False
  ancestor af1939970a1c local f26ec4fc3fa3+ remote 8e765a822af2
   searching for copies back to rev 1
   unmatched files in local:
    c2
   unmatched files in other:
    b
    b2
   all copies found (* = to merge, ! = divergent):
    c2 -> a2 !
    b -> a *
    b2 -> a2 !
   checking for directory renames
  a2: divergent renames -> dr
  a: remote moved to b -> m
  b2: remote created -> g
 copying a to b
+picked tool 'internal:merge' for a (binary False symlink False)
 merging a and b
 my a@f26ec4fc3fa3+ other b@8e765a822af2 ancestor a@af1939970a1c
+ premerge successful
 removing a
 warning: detected divergent renames of a2 to:
  c2
  b2
 getting b2
 1 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 M b
   a
 M b2
 R a
 C c2
 blahblah
    rev    offset  length   base linkrev nodeid       p1           p2
      0         0      67      0       1 dc51707dfc98 000000000000 000000000000
      1        67      72      1       3 b2494a44f0a9 000000000000 dc51707dfc98
 b renamed from a:dd03b83622e78778b403775d0d074b9ac7387a66

tests/test-rename-merge2.out

@@ -1,499 +1,541 b''
 --------------
 test L:up a   R:nc a b W:       - 1  get local a to b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local e300d1c794ec+ remote 735846fee2d7
   searching for copies back to rev 1
   unmatched files in other:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  rev: versions differ -> m
  a: remote copied to b -> m
 copying a to b
+picked tool 'python ../merge' for a (binary False symlink False)
 merging a and b
 my a@e300d1c794ec+ other b@735846fee2d7 ancestor a@924404dff337
+ premerge successful
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@e300d1c794ec+ other rev@735846fee2d7 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 C a
 --------------
 
 --------------
 test L:nc a b R:up a   W:       - 2  get rem change to a and b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ac809aeed39a+ remote f4db7e329e71
   searching for copies back to rev 1
   unmatched files in local:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  a: remote is newer -> g
  b: local copied to a -> m
  rev: versions differ -> m
 getting a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b and a
 my b@ac809aeed39a+ other a@f4db7e329e71 ancestor a@924404dff337
+ premerge successful
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ac809aeed39a+ other rev@f4db7e329e71 ancestor rev@924404dff337
 1 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M a
 M b
   a
 --------------
 
 --------------
 test L:up a   R:nm a b W:       - 3  get local a change to b, remove a
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local e300d1c794ec+ remote e03727d2d66b
   searching for copies back to rev 1
   unmatched files in other:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  rev: versions differ -> m
  a: remote moved to b -> m
 copying a to b
+picked tool 'python ../merge' for a (binary False symlink False)
 merging a and b
 my a@e300d1c794ec+ other b@e03727d2d66b ancestor a@924404dff337
+ premerge successful
 removing a
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@e300d1c794ec+ other rev@e03727d2d66b ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 --------------
 
 --------------
 test L:nm a b R:up a   W:       - 4  get remote change to b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ecf3cb2a4219+ remote f4db7e329e71
   searching for copies back to rev 1
   unmatched files in local:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  b: local moved to a -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b and a
 my b@ecf3cb2a4219+ other a@f4db7e329e71 ancestor a@924404dff337
+ premerge successful
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ecf3cb2a4219+ other rev@f4db7e329e71 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 --------------
 
 --------------
 test L:       R:nc a b W:       - 5  get b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 94b33a1b7f2d+ remote 735846fee2d7
   searching for copies back to rev 1
   unmatched files in other:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a 
   checking for directory renames
  rev: versions differ -> m
  b: remote created -> g
 getting b
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@94b33a1b7f2d+ other rev@735846fee2d7 ancestor rev@924404dff337
 1 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 C a
 --------------
 
 --------------
 test L:nc a b R:       W:       - 6  nothing
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ac809aeed39a+ remote 97c705ade336
   searching for copies back to rev 1
   unmatched files in local:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a 
   checking for directory renames
  rev: versions differ -> m
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ac809aeed39a+ other rev@97c705ade336 ancestor rev@924404dff337
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 C a
 C b
 --------------
 
 --------------
 test L:       R:nm a b W:       - 7  get b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 94b33a1b7f2d+ remote e03727d2d66b
   searching for copies back to rev 1
   unmatched files in other:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a 
   checking for directory renames
  a: other deleted -> r
  rev: versions differ -> m
  b: remote created -> g
 removing a
 getting b
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@94b33a1b7f2d+ other rev@e03727d2d66b ancestor rev@924404dff337
 1 files updated, 1 files merged, 1 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 --------------
 
 --------------
 test L:nm a b R:       W:       - 8  nothing
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ecf3cb2a4219+ remote 97c705ade336
   searching for copies back to rev 1
   unmatched files in local:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a 
   checking for directory renames
  rev: versions differ -> m
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ecf3cb2a4219+ other rev@97c705ade336 ancestor rev@924404dff337
 0 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 C b
 --------------
 
 --------------
 test L:um a b R:um a b W:       - 9  do merge with ancestor in a
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ec03c2ca8642+ remote 79cc6877a3b7
   searching for copies back to rev 1
  b: versions differ -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@ec03c2ca8642+ other b@79cc6877a3b7 ancestor a@924404dff337
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ec03c2ca8642+ other rev@79cc6877a3b7 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 --------------
 
 --------------
 test L:nm a b R:nm a c W:       - 11 get c, keep b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ecf3cb2a4219+ remote e6abcc1a30c2
   searching for copies back to rev 1
   unmatched files in local:
    b
   unmatched files in other:
    c
   all copies found (* = to merge, ! = divergent):
    c -> a !
    b -> a !
   checking for directory renames
  a: divergent renames -> dr
  rev: versions differ -> m
  c: remote created -> g
 warning: detected divergent renames of a to:
  b
  c
 getting c
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ecf3cb2a4219+ other rev@e6abcc1a30c2 ancestor rev@924404dff337
 1 files updated, 1 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M c
 C b
 --------------
 
 --------------
 test L:nc a b R:up b   W:       - 12 merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ac809aeed39a+ remote af30c7647fc7
   searching for copies back to rev 1
  b: versions differ -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@ac809aeed39a+ other b@af30c7647fc7 ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ac809aeed39a+ other rev@af30c7647fc7 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 C a
 --------------
 
 --------------
 test L:up b   R:nm a b W:       - 13 merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 59318016310c+ remote e03727d2d66b
   searching for copies back to rev 1
  a: other deleted -> r
  b: versions differ -> m
  rev: versions differ -> m
 removing a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@59318016310c+ other b@e03727d2d66b ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@59318016310c+ other rev@e03727d2d66b ancestor rev@924404dff337
 0 files updated, 2 files merged, 1 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 --------------
 
 --------------
 test L:nc a b R:up a b W:       - 14 merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ac809aeed39a+ remote 8dbce441892a
   searching for copies back to rev 1
  a: remote is newer -> g
  b: versions differ -> m
  rev: versions differ -> m
 getting a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@ac809aeed39a+ other b@8dbce441892a ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ac809aeed39a+ other rev@8dbce441892a ancestor rev@924404dff337
 1 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M a
 M b
 --------------
 
 --------------
 test L:up b   R:nm a b W:       - 15 merge b no ancestor, remove a
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 59318016310c+ remote e03727d2d66b
   searching for copies back to rev 1
  a: other deleted -> r
  b: versions differ -> m
  rev: versions differ -> m
 removing a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@59318016310c+ other b@e03727d2d66b ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@59318016310c+ other rev@e03727d2d66b ancestor rev@924404dff337
 0 files updated, 2 files merged, 1 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 --------------
 
 --------------
 test L:nc a b R:up a b W:       - 16 get a, merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ac809aeed39a+ remote 8dbce441892a
   searching for copies back to rev 1
  a: remote is newer -> g
  b: versions differ -> m
  rev: versions differ -> m
 getting a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@ac809aeed39a+ other b@8dbce441892a ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ac809aeed39a+ other rev@8dbce441892a ancestor rev@924404dff337
 1 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M a
 M b
 --------------
 
 --------------
 test L:up a b R:nc a b W:       - 17 keep a, merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 0b76e65c8289+ remote 735846fee2d7
   searching for copies back to rev 1
  b: versions differ -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@0b76e65c8289+ other b@735846fee2d7 ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@0b76e65c8289+ other rev@735846fee2d7 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 C a
 --------------
 
 --------------
 test L:nm a b R:up a b W:       - 18 merge b no ancestor
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ecf3cb2a4219+ remote 8dbce441892a
   searching for copies back to rev 1
  b: versions differ -> m
  rev: versions differ -> m
  a: prompt recreating -> g
 getting a
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@ecf3cb2a4219+ other b@8dbce441892a ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ecf3cb2a4219+ other rev@8dbce441892a ancestor rev@924404dff337
 1 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M a
 M b
 --------------
 
 --------------
 test L:up a b R:nm a b W:       - 19 merge b no ancestor, prompt remove a
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local 0b76e65c8289+ remote e03727d2d66b
   searching for copies back to rev 1
  b: versions differ -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b
 my b@0b76e65c8289+ other b@e03727d2d66b ancestor b@000000000000
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@0b76e65c8289+ other rev@e03727d2d66b ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
 C a
 --------------
 
 --------------
 test L:up a   R:um a b W:       - 20 merge a and b to b, remove a
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local e300d1c794ec+ remote 79cc6877a3b7
   searching for copies back to rev 1
   unmatched files in other:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  rev: versions differ -> m
  a: remote moved to b -> m
 copying a to b
+picked tool 'python ../merge' for a (binary False symlink False)
 merging a and b
 my a@e300d1c794ec+ other b@79cc6877a3b7 ancestor a@924404dff337
 removing a
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@e300d1c794ec+ other rev@79cc6877a3b7 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 --------------
 
 --------------
 test L:um a b R:up a   W:       - 21 merge a and b to b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ec03c2ca8642+ remote f4db7e329e71
   searching for copies back to rev 1
   unmatched files in local:
    b
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  b: local moved to a -> m
  rev: versions differ -> m
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b and a
 my b@ec03c2ca8642+ other a@f4db7e329e71 ancestor a@924404dff337
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ec03c2ca8642+ other rev@f4db7e329e71 ancestor rev@924404dff337
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 --------------
 
 --------------
 test L:nm a b R:up a c W:       - 23 get c, keep b
 --------------
 resolving manifests
  overwrite None partial False
  ancestor 924404dff337 local ecf3cb2a4219+ remote 2b958612230f
   searching for copies back to rev 1
   unmatched files in local:
    b
   unmatched files in other:
    c
   all copies found (* = to merge, ! = divergent):
    b -> a *
   checking for directory renames
  b: local moved to a -> m
  rev: versions differ -> m
  c: remote created -> g
+picked tool 'python ../merge' for b (binary False symlink False)
 merging b and a
 my b@ecf3cb2a4219+ other a@2b958612230f ancestor a@924404dff337
+ premerge successful
 getting c
+picked tool 'python ../merge' for rev (binary False symlink False)
 merging rev
 my rev@ecf3cb2a4219+ other rev@2b958612230f ancestor rev@924404dff337
 1 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 --------------
 M b
   a
 M c
 --------------
 

tests/test-up-local-change.out

@@ -1,143 +1,147 b''
 adding a
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 diff -r 33aaa84a386b a
 --- a/a
 +++ b/a
 @@ -1,1 +1,1 @@
 -a
 +abc
 adding b
 M a
 changeset:   0:33aaa84a386b
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     1
 
 resolving manifests
  overwrite False partial False
  ancestor 33aaa84a386b local 33aaa84a386b+ remote 802f095af299
   searching for copies back to rev 1
   unmatched files in other:
    b
  a: versions differ -> m
  b: remote created -> g
+picked tool 'true' for a (binary False symlink False)
 merging a
 my a@33aaa84a386b+ other a@802f095af299 ancestor a@33aaa84a386b
 getting b
 1 files updated, 1 files merged, 0 files removed, 0 files unresolved
 changeset:   1:802f095af299
 tag:         tip
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     2
 
 resolving manifests
  overwrite False partial False
  ancestor 33aaa84a386b local 802f095af299+ remote 33aaa84a386b
  b: remote deleted -> r
 removing b
 0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 changeset:   0:33aaa84a386b
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     1
 
 abort: there is nothing to merge - use "hg update" instead
 failed
 changeset:   0:33aaa84a386b
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     1
 
 resolving manifests
  overwrite False partial False
  ancestor 33aaa84a386b local 33aaa84a386b+ remote 802f095af299
   searching for copies back to rev 1
   unmatched files in other:
    b
  a: versions differ -> m
  b: remote created -> g
+picked tool 'true' for a (binary False symlink False)
 merging a
 my a@33aaa84a386b+ other a@802f095af299 ancestor a@33aaa84a386b
 getting b
 1 files updated, 1 files merged, 0 files removed, 0 files unresolved
 changeset:   1:802f095af299
 tag:         tip
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     2
 
 changeset:   1:802f095af299
 tag:         tip
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 files:       a b
 description:
 2
 
 
 changeset:   0:33aaa84a386b
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 files:       a
 description:
 1
 
 
 diff -r 802f095af299 a
 --- a/a
 +++ b/a
 @@ -1,1 +1,1 @@
 -a2
 +abc
 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 adding b
 M a
 changeset:   1:802f095af299
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     2
 
 abort: update spans branches, use 'hg merge' or 'hg update -C' to lose changes
 failed
 abort: outstanding uncommitted changes
 failed
 resolving manifests
  overwrite False partial False
  ancestor 33aaa84a386b local 802f095af299+ remote 030602aee63d
   searching for copies back to rev 1
  a: versions differ -> m
  b: versions differ -> m
+picked tool 'true' for a (binary False symlink False)
 merging a
 my a@802f095af299+ other a@030602aee63d ancestor a@33aaa84a386b
+picked tool 'true' for b (binary False symlink False)
 merging b
 my b@802f095af299+ other b@030602aee63d ancestor b@000000000000
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 changeset:   1:802f095af299
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     2
 
 changeset:   2:030602aee63d
 tag:         tip
 parent:      0:33aaa84a386b
 user:        test
 date:        Mon Jan 12 13:46:40 1970 +0000
 summary:     3
 
 diff -r 802f095af299 a
 --- a/a
 +++ b/a
 @@ -1,1 +1,1 @@
 -a2
 +abc
 adding a
 pulling from ../a
 requesting all changes
 adding changesets
 adding manifests
 adding file changes
 added 1 changesets with 1 changes to 1 files
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved