discovery: drop findoutgoing and simplify findcommonincoming's api

This is a long desired cleanup and paves the way for new discovery.
To specify subsets for bundling changes, all code should use the heads
of the desired subset ("heads") and the heads of the common subset
("common") to be excluded from the bundled set. These can be used
revlog.findmissing instead of revlog.nodesbetween.

This fixes an actual bug exposed by the change in test-bundle-r.t
where we try to bundle a changeset while specifying that said changeset
is to be assumed already present in the target. This used to still
bundle the changeset. It no longer does. This is similar to the bugs
fixed by the recent switch to heads/common for incoming/pull.

hgext/patchbomb.py

@@ -1,563 +1,562
 # patchbomb.py - sending Mercurial changesets as patch emails
 #
 #  Copyright 2005-2009 Matt Mackall <[e-mail]> and others
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 '''command to send changesets as (a series of) patch emails
 
 The series is started off with a "[PATCH 0 of N]" introduction, which
 describes the series as a whole.
 
 Each patch email has a Subject line of "[PATCH M of N] ...", using the
 first line of the changeset description as the subject text. The
 message contains two or three body parts:
 
 - The changeset description.
 - [Optional] The result of running diffstat on the patch.
 - The patch itself, as generated by :hg:`export`.
 
 Each message refers to the first in the series using the In-Reply-To
 and References headers, so they will show up as a sequence in threaded
 mail and news readers, and in mail archives.
 
 To configure other defaults, add a section like this to your
 configuration file::
 
   [email]
   from = My Name <my@email>
   to = recipient1, recipient2, ...
   cc = cc1, cc2, ...
   bcc = bcc1, bcc2, ...
   reply-to = address1, address2, ...
 
 Use ``[patchbomb]`` as configuration section name if you need to
 override global ``[email]`` address settings.
 
 Then you can use the :hg:`email` command to mail a series of
 changesets as a patchbomb.
 
 You can also either configure the method option in the email section
 to be a sendmail compatible mailer or fill out the [smtp] section so
 that the patchbomb extension can automatically send patchbombs
 directly from the commandline. See the [email] and [smtp] sections in
 hgrc(5) for details.
 '''
 
 import os, errno, socket, tempfile, cStringIO, time
 import email.MIMEMultipart, email.MIMEBase
 import email.Utils, email.Encoders, email.Generator
 from mercurial import cmdutil, commands, hg, mail, patch, util, discovery, url
 from mercurial.i18n import _
 from mercurial.node import bin
 
 def prompt(ui, prompt, default=None, rest=':'):
     if not ui.interactive() and default is None:
         raise util.Abort(_("%s Please enter a valid value" % (prompt + rest)))
     if default:
         prompt += ' [%s]' % default
     prompt += rest
     while True:
         r = ui.prompt(prompt, default=default)
         if r:
             return r
         if default is not None:
             return default
         ui.warn(_('Please enter a valid value.\n'))
 
 def introneeded(opts, number):
     '''is an introductory message required?'''
     return number > 1 or opts.get('intro') or opts.get('desc')
 
 def makepatch(ui, repo, patchlines, opts, _charsets, idx, total,
               patchname=None):
 
     desc = []
     node = None
     body = ''
 
     for line in patchlines:
         if line.startswith('#'):
             if line.startswith('# Node ID'):
                 node = line.split()[-1]
             continue
         if line.startswith('diff -r') or line.startswith('diff --git'):
             break
         desc.append(line)
 
     if not patchname and not node:
         raise ValueError
 
     if opts.get('attach'):
         body = ('\n'.join(desc[1:]).strip() or
                 'Patch subject is complete summary.')
         body += '\n\n\n'
 
     if opts.get('plain'):
         while patchlines and patchlines[0].startswith('# '):
             patchlines.pop(0)
         if patchlines:
             patchlines.pop(0)
         while patchlines and not patchlines[0].strip():
             patchlines.pop(0)
 
     ds = patch.diffstat(patchlines)
     if opts.get('diffstat'):
         body += ds + '\n\n'
 
     if opts.get('attach') or opts.get('inline'):
         msg = email.MIMEMultipart.MIMEMultipart()
         if body:
             msg.attach(mail.mimeencode(ui, body, _charsets, opts.get('test')))
         p = mail.mimetextpatch('\n'.join(patchlines), 'x-patch', opts.get('test'))
         binnode = bin(node)
         # if node is mq patch, it will have the patch file's name as a tag
         if not patchname:
             patchtags = [t for t in repo.nodetags(binnode)
                          if t.endswith('.patch') or t.endswith('.diff')]
             if patchtags:
                 patchname = patchtags[0]
             elif total > 1:
                 patchname = cmdutil.make_filename(repo, '%b-%n.patch',
                                                   binnode, seqno=idx, total=total)
             else:
                 patchname = cmdutil.make_filename(repo, '%b.patch', binnode)
         disposition = 'inline'
         if opts.get('attach'):
             disposition = 'attachment'
         p['Content-Disposition'] = disposition + '; filename=' + patchname
         msg.attach(p)
     else:
         body += '\n'.join(patchlines)
         msg = mail.mimetextpatch(body, display=opts.get('test'))
 
     flag = ' '.join(opts.get('flag'))
     if flag:
         flag = ' ' + flag
 
     subj = desc[0].strip().rstrip('. ')
     if not introneeded(opts, total):
         subj = '[PATCH%s] %s' % (flag, opts.get('subject') or subj)
     else:
         tlen = len(str(total))
         subj = '[PATCH %0*d of %d%s] %s' % (tlen, idx, total, flag, subj)
     msg['Subject'] = mail.headencode(ui, subj, _charsets, opts.get('test'))
     msg['X-Mercurial-Node'] = node
     return msg, subj, ds
 
 def patchbomb(ui, repo, *revs, **opts):
     '''send changesets by email
 
     By default, diffs are sent in the format generated by
     :hg:`export`, one per message. The series starts with a "[PATCH 0
     of N]" introduction, which describes the series as a whole.
 
     Each patch email has a Subject line of "[PATCH M of N] ...", using
     the first line of the changeset description as the subject text.
     The message contains two or three parts. First, the changeset
     description.
 
     With the -d/--diffstat option, if the diffstat program is
     installed, the result of running diffstat on the patch is inserted.
 
     Finally, the patch itself, as generated by :hg:`export`.
 
     With the -d/--diffstat or -c/--confirm options, you will be presented
     with a final summary of all messages and asked for confirmation before
     the messages are sent.
 
     By default the patch is included as text in the email body for
     easy reviewing. Using the -a/--attach option will instead create
     an attachment for the patch. With -i/--inline an inline attachment
     will be created.
 
     With -o/--outgoing, emails will be generated for patches not found
     in the destination repository (or only those which are ancestors
     of the specified revisions if any are provided)
 
     With -b/--bundle, changesets are selected as for --outgoing, but a
     single email containing a binary Mercurial bundle as an attachment
     will be sent.
 
     With -m/--mbox, instead of previewing each patchbomb message in a
     pager or sending the messages directly, it will create a UNIX
     mailbox file with the patch emails. This mailbox file can be
     previewed with any mail user agent which supports UNIX mbox
     files.
 
     With -n/--test, all steps will run, but mail will not be sent.
     You will be prompted for an email recipient address, a subject and
     an introductory message describing the patches of your patchbomb.
     Then when all is done, patchbomb messages are displayed. If the
     PAGER environment variable is set, your pager will be fired up once
     for each patchbomb message, so you can verify everything is alright.
 
     In case email sending fails, you will find a backup of your series
     introductory message in ``.hg/last-email.txt``.
 
     Examples::
 
       hg email -r 3000          # send patch 3000 only
       hg email -r 3000 -r 3001  # send patches 3000 and 3001
       hg email -r 3000:3005     # send patches 3000 through 3005
       hg email 3000             # send patch 3000 (deprecated)
 
       hg email -o               # send all patches not in default
       hg email -o DEST          # send all patches not in DEST
       hg email -o -r 3000       # send all ancestors of 3000 not in default
       hg email -o -r 3000 DEST  # send all ancestors of 3000 not in DEST
 
       hg email -b               # send bundle of all patches not in default
       hg email -b DEST          # send bundle of all patches not in DEST
       hg email -b -r 3000       # bundle of all ancestors of 3000 not in default
       hg email -b -r 3000 DEST  # bundle of all ancestors of 3000 not in DEST
 
       hg email -o -m mbox &&    # generate an mbox file...
         mutt -R -f mbox         # ... and view it with mutt
       hg email -o -m mbox &&    # generate an mbox file ...
         formail -s sendmail \\   # ... and use formail to send from the mbox
           -bm -t < mbox         # ... using sendmail
 
     Before using this command, you will need to enable email in your
     hgrc. See the [email] section in hgrc(5) for details.
     '''
 
     _charsets = mail._charsets(ui)
 
     bundle = opts.get('bundle')
     date = opts.get('date')
     mbox = opts.get('mbox')
     outgoing = opts.get('outgoing')
     rev = opts.get('rev')
     # internal option used by pbranches
     patches = opts.get('patches')
 
     def getoutgoing(dest, revs):
         '''Return the revisions present locally but not in dest'''
         dest = ui.expandpath(dest or 'default-push', dest or 'default')
         dest, branches = hg.parseurl(dest)
         revs, checkout = hg.addbranchrevs(repo, repo, branches, revs)
-        if revs:
-            revs = [repo.lookup(rev) for rev in revs]
         other = hg.repository(hg.remoteui(repo, opts), dest)
         ui.status(_('comparing with %s\n') % url.hidepassword(dest))
-        o = discovery.findoutgoing(repo, other)
+        common, _anyinc, _heads = discovery.findcommonincoming(repo, other)
+        nodes = revs and map(repo.lookup, revs) or revs
+        o = repo.changelog.findmissing(common, heads=nodes)
         if not o:
             ui.status(_("no changes found\n"))
             return []
-        o = repo.changelog.nodesbetween(o, revs)[0]
         return [str(repo.changelog.rev(r)) for r in o]
 
     def getpatches(revs):
         for r in cmdutil.revrange(repo, revs):
             output = cStringIO.StringIO()
             cmdutil.export(repo, [r], fp=output,
                          opts=patch.diffopts(ui, opts))
             yield output.getvalue().split('\n')
 
     def getbundle(dest):
         tmpdir = tempfile.mkdtemp(prefix='hg-email-bundle-')
         tmpfn = os.path.join(tmpdir, 'bundle')
         try:
             commands.bundle(ui, repo, tmpfn, dest, **opts)
             fp = open(tmpfn, 'rb')
             data = fp.read()
             fp.close()
             return data
         finally:
             try:
                 os.unlink(tmpfn)
             except:
                 pass
             os.rmdir(tmpdir)
 
     if not (opts.get('test') or mbox):
         # really sending
         mail.validateconfig(ui)
 
     if not (revs or rev or outgoing or bundle or patches):
         raise util.Abort(_('specify at least one changeset with -r or -o'))
 
     if outgoing and bundle:
         raise util.Abort(_("--outgoing mode always on with --bundle;"
                            " do not re-specify --outgoing"))
 
     if outgoing or bundle:
         if len(revs) > 1:
             raise util.Abort(_("too many destinations"))
         dest = revs and revs[0] or None
         revs = []
 
     if rev:
         if revs:
             raise util.Abort(_('use only one form to specify the revision'))
         revs = rev
 
     if outgoing:
         revs = getoutgoing(dest, rev)
     if bundle:
         opts['revs'] = revs
 
     # start
     if date:
         start_time = util.parsedate(date)
     else:
         start_time = util.makedate()
 
     def genmsgid(id):
         return '<%s.%s@%s>' % (id[:20], int(start_time[0]), socket.getfqdn())
 
     def getdescription(body, sender):
         if opts.get('desc'):
             body = open(opts.get('desc')).read()
         else:
             ui.write(_('\nWrite the introductory message for the '
                        'patch series.\n\n'))
             body = ui.edit(body, sender)
             # Save serie description in case sendmail fails
             msgfile = repo.opener('last-email.txt', 'wb')
             msgfile.write(body)
             msgfile.close()
         return body
 
     def getpatchmsgs(patches, patchnames=None):
         jumbo = []
         msgs = []
 
         ui.write(_('This patch series consists of %d patches.\n\n')
                  % len(patches))
 
         name = None
         for i, p in enumerate(patches):
             jumbo.extend(p)
             if patchnames:
                 name = patchnames[i]
             msg = makepatch(ui, repo, p, opts, _charsets, i + 1,
                             len(patches), name)
             msgs.append(msg)
 
         if introneeded(opts, len(patches)):
             tlen = len(str(len(patches)))
 
             flag = ' '.join(opts.get('flag'))
             if flag:
                 subj = '[PATCH %0*d of %d %s]' % (tlen, 0, len(patches), flag)
             else:
                 subj = '[PATCH %0*d of %d]' % (tlen, 0, len(patches))
             subj += ' ' + (opts.get('subject') or
                            prompt(ui, 'Subject: ', rest=subj))
 
             body = ''
             ds = patch.diffstat(jumbo)
             if ds and opts.get('diffstat'):
                 body = '\n' + ds
 
             body = getdescription(body, sender)
             msg = mail.mimeencode(ui, body, _charsets, opts.get('test'))
             msg['Subject'] = mail.headencode(ui, subj, _charsets,
                                              opts.get('test'))
 
             msgs.insert(0, (msg, subj, ds))
         return msgs
 
     def getbundlemsgs(bundle):
         subj = (opts.get('subject')
                 or prompt(ui, 'Subject:', 'A bundle for your repository'))
 
         body = getdescription('', sender)
         msg = email.MIMEMultipart.MIMEMultipart()
         if body:
             msg.attach(mail.mimeencode(ui, body, _charsets, opts.get('test')))
         datapart = email.MIMEBase.MIMEBase('application', 'x-mercurial-bundle')
         datapart.set_payload(bundle)
         bundlename = '%s.hg' % opts.get('bundlename', 'bundle')
         datapart.add_header('Content-Disposition', 'attachment',
                             filename=bundlename)
         email.Encoders.encode_base64(datapart)
         msg.attach(datapart)
         msg['Subject'] = mail.headencode(ui, subj, _charsets, opts.get('test'))
         return [(msg, subj, None)]
 
     sender = (opts.get('from') or ui.config('email', 'from') or
               ui.config('patchbomb', 'from') or
               prompt(ui, 'From', ui.username()))
 
     if patches:
         msgs = getpatchmsgs(patches, opts.get('patchnames'))
     elif bundle:
         msgs = getbundlemsgs(getbundle(dest))
     else:
         msgs = getpatchmsgs(list(getpatches(revs)))
 
     showaddrs = []
 
     def getaddrs(opt, prpt=None, default=None):
         addrs = opts.get(opt.replace('-', '_'))
         if opt != 'reply-to':
             showaddr = '%s:' % opt.capitalize()
         else:
             showaddr = 'Reply-To:'
 
         if addrs:
             showaddrs.append('%s %s' % (showaddr, ', '.join(addrs)))
             return mail.addrlistencode(ui, addrs, _charsets, opts.get('test'))
 
         addrs = ui.config('email', opt) or ui.config('patchbomb', opt) or ''
         if not addrs and prpt:
             addrs = prompt(ui, prpt, default)
 
         if addrs:
             showaddrs.append('%s %s' % (showaddr, addrs))
         return mail.addrlistencode(ui, [addrs], _charsets, opts.get('test'))
 
     to = getaddrs('to', 'To')
     cc = getaddrs('cc', 'Cc', '')
     bcc = getaddrs('bcc')
     replyto = getaddrs('reply-to')
 
     if opts.get('diffstat') or opts.get('confirm'):
         ui.write(_('\nFinal summary:\n\n'))
         ui.write('From: %s\n' % sender)
         for addr in showaddrs:
             ui.write('%s\n' % addr)
         for m, subj, ds in msgs:
             ui.write('Subject: %s\n' % subj)
             if ds:
                 ui.write(ds)
         ui.write('\n')
         if ui.promptchoice(_('are you sure you want to send (yn)?'),
                            (_('&Yes'), _('&No'))):
             raise util.Abort(_('patchbomb canceled'))
 
     ui.write('\n')
 
     parent = opts.get('in_reply_to') or None
     # angle brackets may be omitted, they're not semantically part of the msg-id
     if parent is not None:
         if not parent.startswith('<'):
             parent = '<' + parent
         if not parent.endswith('>'):
             parent += '>'
 
     first = True
 
     sender_addr = email.Utils.parseaddr(sender)[1]
     sender = mail.addressencode(ui, sender, _charsets, opts.get('test'))
     sendmail = None
     for i, (m, subj, ds) in enumerate(msgs):
         try:
             m['Message-Id'] = genmsgid(m['X-Mercurial-Node'])
         except TypeError:
             m['Message-Id'] = genmsgid('patchbomb')
         if parent:
             m['In-Reply-To'] = parent
             m['References'] = parent
         if first:
             parent = m['Message-Id']
             first = False
 
         m['User-Agent'] = 'Mercurial-patchbomb/%s' % util.version()
         m['Date'] = email.Utils.formatdate(start_time[0], localtime=True)
 
         start_time = (start_time[0] + 1, start_time[1])
         m['From'] = sender
         m['To'] = ', '.join(to)
         if cc:
             m['Cc']  = ', '.join(cc)
         if bcc:
             m['Bcc'] = ', '.join(bcc)
         if replyto:
             m['Reply-To'] = ', '.join(replyto)
         if opts.get('test'):
             ui.status(_('Displaying '), subj, ' ...\n')
             ui.flush()
             if 'PAGER' in os.environ and not ui.plain():
                 fp = util.popen(os.environ['PAGER'], 'w')
             else:
                 fp = ui
             generator = email.Generator.Generator(fp, mangle_from_=False)
             try:
                 generator.flatten(m, 0)
                 fp.write('\n')
             except IOError, inst:
                 if inst.errno != errno.EPIPE:
                     raise
             if fp is not ui:
                 fp.close()
         elif mbox:
             ui.status(_('Writing '), subj, ' ...\n')
             ui.progress(_('writing'), i, item=subj, total=len(msgs))
             fp = open(mbox, 'In-Reply-To' in m and 'ab+' or 'wb+')
             generator = email.Generator.Generator(fp, mangle_from_=True)
             # Should be time.asctime(), but Windows prints 2-characters day
             # of month instead of one. Make them print the same thing.
             date = time.strftime('%a %b %d %H:%M:%S %Y',
                                  time.localtime(start_time[0]))
             fp.write('From %s %s\n' % (sender_addr, date))
             generator.flatten(m, 0)
             fp.write('\n\n')
             fp.close()
         else:
             if not sendmail:
                 sendmail = mail.connect(ui)
             ui.status(_('Sending '), subj, ' ...\n')
             ui.progress(_('sending'), i, item=subj, total=len(msgs))
             # Exim does not remove the Bcc field
             del m['Bcc']
             fp = cStringIO.StringIO()
             generator = email.Generator.Generator(fp, mangle_from_=False)
             generator.flatten(m, 0)
             sendmail(sender, to + bcc + cc, fp.getvalue())
 
     ui.progress(_('writing'), None)
     ui.progress(_('sending'), None)
 
 emailopts = [
           ('a', 'attach', None, _('send patches as attachments')),
           ('i', 'inline', None, _('send patches as inline attachments')),
           ('', 'bcc', [], _('email addresses of blind carbon copy recipients')),
           ('c', 'cc', [], _('email addresses of copy recipients')),
           ('', 'confirm', None, _('ask for confirmation before sending')),
           ('d', 'diffstat', None, _('add diffstat output to messages')),
           ('', 'date', '', _('use the given date as the sending date')),
           ('', 'desc', '', _('use the given file as the series description')),
           ('f', 'from', '', _('email address of sender')),
           ('n', 'test', None, _('print messages that would be sent')),
           ('m', 'mbox', '',
            _('write messages to mbox file instead of sending them')),
           ('', 'reply-to', [], _('email addresses replies should be sent to')),
           ('s', 'subject', '',
            _('subject of first message (intro or single patch)')),
           ('', 'in-reply-to', '',
            _('message identifier to reply to')),
           ('', 'flag', [], _('flags to add in subject prefixes')),
           ('t', 'to', [], _('email addresses of recipients')),
          ]
 
 
 cmdtable = {
     "email":
         (patchbomb,
          [('g', 'git', None, _('use git extended diff format')),
           ('', 'plain', None, _('omit hg patch header')),
           ('o', 'outgoing', None,
            _('send changes not found in the target repository')),
           ('b', 'bundle', None,
            _('send changes not in target as a binary bundle')),
           ('', 'bundlename', 'bundle',
            _('name of the bundle attachment file'), _('NAME')),
           ('r', 'rev', [],
            _('a revision to send'), _('REV')),
           ('', 'force', None,
            _('run even when remote repository is unrelated '
              '(with -b/--bundle)')),
           ('', 'base', [],
            _('a base changeset to specify instead of a destination '
              '(with -b/--bundle)'),
            _('REV')),
           ('', 'intro', None,
            _('send an introduction email for a single patch')),
          ] + emailopts + commands.remoteopts,
          _('hg email [OPTION]... [DEST]...'))
 }

hgext/transplant.py

@@ -1,647 +1,647
 # Patch transplanting extension for Mercurial
 #
 # Copyright 2006, 2007 Brendan Cully <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 '''command to transplant changesets from another branch
 
 This extension allows you to transplant patches from another branch.
 
 Transplanted patches are recorded in .hg/transplant/transplants, as a
 map from a changeset hash to its hash in the source repository.
 '''
 
 from mercurial.i18n import _
 import os, tempfile
 from mercurial import bundlerepo, cmdutil, hg, merge, match
 from mercurial import patch, revlog, scmutil, util, error
 from mercurial import revset, templatekw
 
 class transplantentry(object):
     def __init__(self, lnode, rnode):
         self.lnode = lnode
         self.rnode = rnode
 
 class transplants(object):
     def __init__(self, path=None, transplantfile=None, opener=None):
         self.path = path
         self.transplantfile = transplantfile
         self.opener = opener
 
         if not opener:
             self.opener = scmutil.opener(self.path)
         self.transplants = {}
         self.dirty = False
         self.read()
 
     def read(self):
         abspath = os.path.join(self.path, self.transplantfile)
         if self.transplantfile and os.path.exists(abspath):
             for line in self.opener(self.transplantfile).read().splitlines():
                 lnode, rnode = map(revlog.bin, line.split(':'))
                 list = self.transplants.setdefault(rnode, [])
                 list.append(transplantentry(lnode, rnode))
 
     def write(self):
         if self.dirty and self.transplantfile:
             if not os.path.isdir(self.path):
                 os.mkdir(self.path)
             fp = self.opener(self.transplantfile, 'w')
             for list in self.transplants.itervalues():
                 for t in list:
                     l, r = map(revlog.hex, (t.lnode, t.rnode))
                     fp.write(l + ':' + r + '\n')
             fp.close()
         self.dirty = False
 
     def get(self, rnode):
         return self.transplants.get(rnode) or []
 
     def set(self, lnode, rnode):
         list = self.transplants.setdefault(rnode, [])
         list.append(transplantentry(lnode, rnode))
         self.dirty = True
 
     def remove(self, transplant):
         list = self.transplants.get(transplant.rnode)
         if list:
             del list[list.index(transplant)]
             self.dirty = True
 
 class transplanter(object):
     def __init__(self, ui, repo):
         self.ui = ui
         self.path = repo.join('transplant')
         self.opener = scmutil.opener(self.path)
         self.transplants = transplants(self.path, 'transplants',
                                        opener=self.opener)
 
     def applied(self, repo, node, parent):
         '''returns True if a node is already an ancestor of parent
         or has already been transplanted'''
         if hasnode(repo, node):
             if node in repo.changelog.reachable(parent, stop=node):
                 return True
         for t in self.transplants.get(node):
             # it might have been stripped
             if not hasnode(repo, t.lnode):
                 self.transplants.remove(t)
                 return False
             if t.lnode in repo.changelog.reachable(parent, stop=t.lnode):
                 return True
         return False
 
     def apply(self, repo, source, revmap, merges, opts={}):
         '''apply the revisions in revmap one by one in revision order'''
         revs = sorted(revmap)
         p1, p2 = repo.dirstate.parents()
         pulls = []
         diffopts = patch.diffopts(self.ui, opts)
         diffopts.git = True
 
         lock = wlock = None
         try:
             wlock = repo.wlock()
             lock = repo.lock()
             for rev in revs:
                 node = revmap[rev]
                 revstr = '%s:%s' % (rev, revlog.short(node))
 
                 if self.applied(repo, node, p1):
                     self.ui.warn(_('skipping already applied revision %s\n') %
                                  revstr)
                     continue
 
                 parents = source.changelog.parents(node)
                 if not opts.get('filter'):
                     # If the changeset parent is the same as the
                     # wdir's parent, just pull it.
                     if parents[0] == p1:
                         pulls.append(node)
                         p1 = node
                         continue
                     if pulls:
                         if source != repo:
                             repo.pull(source, heads=pulls)
                         merge.update(repo, pulls[-1], False, False, None)
                         p1, p2 = repo.dirstate.parents()
                         pulls = []
 
                 domerge = False
                 if node in merges:
                     # pulling all the merge revs at once would mean we
                     # couldn't transplant after the latest even if
                     # transplants before them fail.
                     domerge = True
                     if not hasnode(repo, node):
                         repo.pull(source, heads=[node])
 
                 if parents[1] != revlog.nullid:
                     self.ui.note(_('skipping merge changeset %s:%s\n')
                                  % (rev, revlog.short(node)))
                     patchfile = None
                 else:
                     fd, patchfile = tempfile.mkstemp(prefix='hg-transplant-')
                     fp = os.fdopen(fd, 'w')
                     gen = patch.diff(source, parents[0], node, opts=diffopts)
                     for chunk in gen:
                         fp.write(chunk)
                     fp.close()
 
                 del revmap[rev]
                 if patchfile or domerge:
                     try:
                         n = self.applyone(repo, node,
                                           source.changelog.read(node),
                                           patchfile, merge=domerge,
                                           log=opts.get('log'),
                                           filter=opts.get('filter'))
                         if n and domerge:
                             self.ui.status(_('%s merged at %s\n') % (revstr,
                                       revlog.short(n)))
                         elif n:
                             self.ui.status(_('%s transplanted to %s\n')
                                            % (revlog.short(node),
                                               revlog.short(n)))
                     finally:
                         if patchfile:
                             os.unlink(patchfile)
             if pulls:
                 repo.pull(source, heads=pulls)
                 merge.update(repo, pulls[-1], False, False, None)
         finally:
             self.saveseries(revmap, merges)
             self.transplants.write()
             lock.release()
             wlock.release()
 
     def filter(self, filter, node, changelog, patchfile):
         '''arbitrarily rewrite changeset before applying it'''
 
         self.ui.status(_('filtering %s\n') % patchfile)
         user, date, msg = (changelog[1], changelog[2], changelog[4])
         fd, headerfile = tempfile.mkstemp(prefix='hg-transplant-')
         fp = os.fdopen(fd, 'w')
         fp.write("# HG changeset patch\n")
         fp.write("# User %s\n" % user)
         fp.write("# Date %d %d\n" % date)
         fp.write(msg + '\n')
         fp.close()
 
         try:
             util.system('%s %s %s' % (filter, util.shellquote(headerfile),
                                    util.shellquote(patchfile)),
                         environ={'HGUSER': changelog[1],
                                  'HGREVISION': revlog.hex(node),
                                  },
                         onerr=util.Abort, errprefix=_('filter failed'))
             user, date, msg = self.parselog(file(headerfile))[1:4]
         finally:
             os.unlink(headerfile)
 
         return (user, date, msg)
 
     def applyone(self, repo, node, cl, patchfile, merge=False, log=False,
                  filter=None):
         '''apply the patch in patchfile to the repository as a transplant'''
         (manifest, user, (time, timezone), files, message) = cl[:5]
         date = "%d %d" % (time, timezone)
         extra = {'transplant_source': node}
         if filter:
             (user, date, message) = self.filter(filter, node, cl, patchfile)
 
         if log:
             # we don't translate messages inserted into commits
             message += '\n(transplanted from %s)' % revlog.hex(node)
 
         self.ui.status(_('applying %s\n') % revlog.short(node))
         self.ui.note('%s %s\n%s\n' % (user, date, message))
 
         if not patchfile and not merge:
             raise util.Abort(_('can only omit patchfile if merging'))
         if patchfile:
             try:
                 files = {}
                 try:
                     patch.patch(patchfile, self.ui, cwd=repo.root,
                                 files=files, eolmode=None)
                     if not files:
                         self.ui.warn(_('%s: empty changeset')
                                      % revlog.hex(node))
                         return None
                 finally:
                     files = cmdutil.updatedir(self.ui, repo, files)
             except Exception, inst:
                 seriespath = os.path.join(self.path, 'series')
                 if os.path.exists(seriespath):
                     os.unlink(seriespath)
                 p1 = repo.dirstate.p1()
                 p2 = node
                 self.log(user, date, message, p1, p2, merge=merge)
                 self.ui.write(str(inst) + '\n')
                 raise util.Abort(_('fix up the merge and run '
                                    'hg transplant --continue'))
         else:
             files = None
         if merge:
             p1, p2 = repo.dirstate.parents()
             repo.dirstate.setparents(p1, node)
             m = match.always(repo.root, '')
         else:
             m = match.exact(repo.root, '', files)
 
         n = repo.commit(message, user, date, extra=extra, match=m)
         if not n:
             # Crash here to prevent an unclear crash later, in
             # transplants.write().  This can happen if patch.patch()
             # does nothing but claims success or if repo.status() fails
             # to report changes done by patch.patch().  These both
             # appear to be bugs in other parts of Mercurial, but dying
             # here, as soon as we can detect the problem, is preferable
             # to silently dropping changesets on the floor.
             raise RuntimeError('nothing committed after transplant')
         if not merge:
             self.transplants.set(n, node)
 
         return n
 
     def resume(self, repo, source, opts=None):
         '''recover last transaction and apply remaining changesets'''
         if os.path.exists(os.path.join(self.path, 'journal')):
             n, node = self.recover(repo)
             self.ui.status(_('%s transplanted as %s\n') % (revlog.short(node),
                                                            revlog.short(n)))
         seriespath = os.path.join(self.path, 'series')
         if not os.path.exists(seriespath):
             self.transplants.write()
             return
         nodes, merges = self.readseries()
         revmap = {}
         for n in nodes:
             revmap[source.changelog.rev(n)] = n
         os.unlink(seriespath)
 
         self.apply(repo, source, revmap, merges, opts)
 
     def recover(self, repo):
         '''commit working directory using journal metadata'''
         node, user, date, message, parents = self.readlog()
         merge = len(parents) == 2
 
         if not user or not date or not message or not parents[0]:
             raise util.Abort(_('transplant log file is corrupt'))
 
         extra = {'transplant_source': node}
         wlock = repo.wlock()
         try:
             p1, p2 = repo.dirstate.parents()
             if p1 != parents[0]:
                 raise util.Abort(
                     _('working dir not at transplant parent %s') %
                                  revlog.hex(parents[0]))
             if merge:
                 repo.dirstate.setparents(p1, parents[1])
             n = repo.commit(message, user, date, extra=extra)
             if not n:
                 raise util.Abort(_('commit failed'))
             if not merge:
                 self.transplants.set(n, node)
             self.unlog()
 
             return n, node
         finally:
             wlock.release()
 
     def readseries(self):
         nodes = []
         merges = []
         cur = nodes
         for line in self.opener('series').read().splitlines():
             if line.startswith('# Merges'):
                 cur = merges
                 continue
             cur.append(revlog.bin(line))
 
         return (nodes, merges)
 
     def saveseries(self, revmap, merges):
         if not revmap:
             return
 
         if not os.path.isdir(self.path):
             os.mkdir(self.path)
         series = self.opener('series', 'w')
         for rev in sorted(revmap):
             series.write(revlog.hex(revmap[rev]) + '\n')
         if merges:
             series.write('# Merges\n')
             for m in merges:
                 series.write(revlog.hex(m) + '\n')
         series.close()
 
     def parselog(self, fp):
         parents = []
         message = []
         node = revlog.nullid
         inmsg = False
         user = None
         date = None
         for line in fp.read().splitlines():
             if inmsg:
                 message.append(line)
             elif line.startswith('# User '):
                 user = line[7:]
             elif line.startswith('# Date '):
                 date = line[7:]
             elif line.startswith('# Node ID '):
                 node = revlog.bin(line[10:])
             elif line.startswith('# Parent '):
                 parents.append(revlog.bin(line[9:]))
             elif not line.startswith('# '):
                 inmsg = True
                 message.append(line)
         if None in (user, date):
             raise util.Abort(_("filter corrupted changeset (no user or date)"))
         return (node, user, date, '\n'.join(message), parents)
 
     def log(self, user, date, message, p1, p2, merge=False):
         '''journal changelog metadata for later recover'''
 
         if not os.path.isdir(self.path):
             os.mkdir(self.path)
         fp = self.opener('journal', 'w')
         fp.write('# User %s\n' % user)
         fp.write('# Date %s\n' % date)
         fp.write('# Node ID %s\n' % revlog.hex(p2))
         fp.write('# Parent ' + revlog.hex(p1) + '\n')
         if merge:
             fp.write('# Parent ' + revlog.hex(p2) + '\n')
         fp.write(message.rstrip() + '\n')
         fp.close()
 
     def readlog(self):
         return self.parselog(self.opener('journal'))
 
     def unlog(self):
         '''remove changelog journal'''
         absdst = os.path.join(self.path, 'journal')
         if os.path.exists(absdst):
             os.unlink(absdst)
 
     def transplantfilter(self, repo, source, root):
         def matchfn(node):
             if self.applied(repo, node, root):
                 return False
             if source.changelog.parents(node)[1] != revlog.nullid:
                 return False
             extra = source.changelog.read(node)[5]
             cnode = extra.get('transplant_source')
             if cnode and self.applied(repo, cnode, root):
                 return False
             return True
 
         return matchfn
 
 def hasnode(repo, node):
     try:
         return repo.changelog.rev(node) is not None
     except error.RevlogError:
         return False
 
 def browserevs(ui, repo, nodes, opts):
     '''interactively transplant changesets'''
     def browsehelp(ui):
         ui.write(_('y: transplant this changeset\n'
                    'n: skip this changeset\n'
                    'm: merge at this changeset\n'
                    'p: show patch\n'
                    'c: commit selected changesets\n'
                    'q: cancel transplant\n'
                    '?: show this help\n'))
 
     displayer = cmdutil.show_changeset(ui, repo, opts)
     transplants = []
     merges = []
     for node in nodes:
         displayer.show(repo[node])
         action = None
         while not action:
             action = ui.prompt(_('apply changeset? [ynmpcq?]:'))
             if action == '?':
                 browsehelp(ui)
                 action = None
             elif action == 'p':
                 parent = repo.changelog.parents(node)[0]
                 for chunk in patch.diff(repo, parent, node):
                     ui.write(chunk)
                 action = None
             elif action not in ('y', 'n', 'm', 'c', 'q'):
                 ui.write(_('no such option\n'))
                 action = None
         if action == 'y':
             transplants.append(node)
         elif action == 'm':
             merges.append(node)
         elif action == 'c':
             break
         elif action == 'q':
             transplants = ()
             merges = ()
             break
     displayer.close()
     return (transplants, merges)
 
 def transplant(ui, repo, *revs, **opts):
     '''transplant changesets from another branch
 
     Selected changesets will be applied on top of the current working
     directory with the log of the original changeset. The changesets
     are copied and will thus appear twice in the history. Use the
     rebase extension instead if you want to move a whole branch of
     unpublished changesets.
 
     If --log is specified, log messages will have a comment appended
     of the form::
 
       (transplanted from CHANGESETHASH)
 
     You can rewrite the changelog message with the --filter option.
     Its argument will be invoked with the current changelog message as
     $1 and the patch as $2.
 
     If --source/-s is specified, selects changesets from the named
     repository. If --branch/-b is specified, selects changesets from
     the branch holding the named revision, up to that revision. If
     --all/-a is specified, all changesets on the branch will be
     transplanted, otherwise you will be prompted to select the
     changesets you want.
 
     :hg:`transplant --branch REVISION --all` will transplant the
     selected branch (up to the named revision) onto your current
     working directory.
 
     You can optionally mark selected transplanted changesets as merge
     changesets. You will not be prompted to transplant any ancestors
     of a merged transplant, and you can merge descendants of them
     normally instead of transplanting them.
 
     If no merges or revisions are provided, :hg:`transplant` will
     start an interactive changeset browser.
 
     If a changeset application fails, you can fix the merge by hand
     and then resume where you left off by calling :hg:`transplant
     --continue/-c`.
     '''
-    def incwalk(repo, incoming, branches, match=util.always):
+    def incwalk(repo, commmon, branches, match=util.always):
         if not branches:
             branches = None
-        for node in repo.changelog.nodesbetween(incoming, branches)[0]:
+        for node in repo.changelog.findmissing(common, branches):
             if match(node):
                 yield node
 
     def transplantwalk(repo, root, branches, match=util.always):
         if not branches:
             branches = repo.heads()
         ancestors = []
         for branch in branches:
             ancestors.append(repo.changelog.ancestor(root, branch))
         for node in repo.changelog.nodesbetween(ancestors, branches)[0]:
             if match(node):
                 yield node
 
     def checkopts(opts, revs):
         if opts.get('continue'):
             if opts.get('branch') or opts.get('all') or opts.get('merge'):
                 raise util.Abort(_('--continue is incompatible with '
                                    'branch, all or merge'))
             return
         if not (opts.get('source') or revs or
                 opts.get('merge') or opts.get('branch')):
             raise util.Abort(_('no source URL, branch tag or revision '
                                'list provided'))
         if opts.get('all'):
             if not opts.get('branch'):
                 raise util.Abort(_('--all requires a branch revision'))
             if revs:
                 raise util.Abort(_('--all is incompatible with a '
                                    'revision list'))
 
     checkopts(opts, revs)
 
     if not opts.get('log'):
         opts['log'] = ui.config('transplant', 'log')
     if not opts.get('filter'):
         opts['filter'] = ui.config('transplant', 'filter')
 
     tp = transplanter(ui, repo)
 
     p1, p2 = repo.dirstate.parents()
     if len(repo) > 0 and p1 == revlog.nullid:
         raise util.Abort(_('no revision checked out'))
     if not opts.get('continue'):
         if p2 != revlog.nullid:
             raise util.Abort(_('outstanding uncommitted merges'))
         m, a, r, d = repo.status()[:4]
         if m or a or r or d:
             raise util.Abort(_('outstanding local changes'))
 
     bundle = None
     source = opts.get('source')
     if source:
         sourcerepo = ui.expandpath(source)
         source = hg.repository(ui, sourcerepo)
-        source, common, incoming, bundle = bundlerepo.getremotechanges(ui, repo,
-                                            source, force=True)
+        source, common, anyinc, bundle = bundlerepo.getremotechanges(ui, repo,
+                                          source, force=True)
     else:
         source = repo
 
     try:
         if opts.get('continue'):
             tp.resume(repo, source, opts)
             return
 
         tf = tp.transplantfilter(repo, source, p1)
         if opts.get('prune'):
             prune = [source.lookup(r)
                      for r in cmdutil.revrange(source, opts.get('prune'))]
             matchfn = lambda x: tf(x) and x not in prune
         else:
             matchfn = tf
         branches = map(source.lookup, opts.get('branch', ()))
         merges = map(source.lookup, opts.get('merge', ()))
         revmap = {}
         if revs:
             for r in cmdutil.revrange(source, revs):
                 revmap[int(r)] = source.lookup(r)
         elif opts.get('all') or not merges:
             if source != repo:
-                alltransplants = incwalk(source, incoming, branches,
+                alltransplants = incwalk(source, common, branches,
                                          match=matchfn)
             else:
                 alltransplants = transplantwalk(source, p1, branches,
                                                 match=matchfn)
             if opts.get('all'):
                 revs = alltransplants
             else:
                 revs, newmerges = browserevs(ui, source, alltransplants, opts)
                 merges.extend(newmerges)
             for r in revs:
                 revmap[source.changelog.rev(r)] = r
         for r in merges:
             revmap[source.changelog.rev(r)] = r
 
         tp.apply(repo, source, revmap, merges, opts)
     finally:
         if bundle:
             source.close()
             os.unlink(bundle)
 
 def revsettransplanted(repo, subset, x):
     """``transplanted(set)``
     Transplanted changesets in set.
     """
     if x:
       s = revset.getset(repo, subset, x)
     else:
       s = subset
     cs = set()
     for r in xrange(0, len(repo)):
       if repo[r].extra().get('transplant_source'):
         cs.add(r)
     return [r for r in s if r in cs]
 
 def kwtransplanted(repo, ctx, **args):
     """:transplanted: String. The node identifier of the transplanted
     changeset if any."""
     n = ctx.extra().get('transplant_source')
     return n and revlog.hex(n) or ''
 
 def extsetup(ui):
     revset.symbols['transplanted'] = revsettransplanted
     templatekw.keywords['transplanted'] = kwtransplanted
 
 cmdtable = {
     "transplant":
         (transplant,
          [('s', 'source', '',
            _('pull patches from REPO'), _('REPO')),
           ('b', 'branch', [],
            _('pull patches from branch BRANCH'), _('BRANCH')),
           ('a', 'all', None, _('pull all changesets up to BRANCH')),
           ('p', 'prune', [],
            _('skip over REV'), _('REV')),
           ('m', 'merge', [],
            _('merge at REV'), _('REV')),
           ('', 'log', None, _('append transplant info to log message')),
           ('c', 'continue', None, _('continue last transplant session '
                                     'after repair')),
           ('', 'filter', '',
            _('filter changesets through command'), _('CMD'))],
          _('hg transplant [-s REPO] [-b BRANCH [-a]] [-p REV] '
            '[-m REV] [REV]...'))
 }
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = [revsettransplanted, kwtransplanted]

mercurial/bundlerepo.py

@@ -1,323 +1,322
 # bundlerepo.py - repository class for viewing uncompressed bundles
 #
 # Copyright 2006, 2007 Benoit Boissinot <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 """Repository class for viewing uncompressed bundles.
 
 This provides a read-only repository interface to bundles as if they
 were part of the actual repository.
 """
 
 from node import nullid
 from i18n import _
 import os, struct, tempfile, shutil
 import changegroup, util, mdiff, discovery
 import localrepo, changelog, manifest, filelog, revlog, error, url
 
 class bundlerevlog(revlog.revlog):
     def __init__(self, opener, indexfile, bundle,
                  linkmapper=None):
         # How it works:
         # to retrieve a revision, we need to know the offset of
         # the revision in the bundle (an unbundle object).
         #
         # We store this offset in the index (start), to differentiate a
         # rev in the bundle and from a rev in the revlog, we check
         # len(index[r]). If the tuple is bigger than 7, it is a bundle
         # (it is bigger since we store the node to which the delta is)
         #
         revlog.revlog.__init__(self, opener, indexfile)
         self.bundle = bundle
         self.basemap = {}
         def chunkpositer():
             while 1:
                 chunk = bundle.chunk()
                 if not chunk:
                     break
                 pos = bundle.tell()
                 yield chunk, pos - len(chunk)
         n = len(self)
         prev = None
         for chunk, start in chunkpositer():
             size = len(chunk)
             if size < 80:
                 raise util.Abort(_("invalid changegroup"))
             start += 80
             size -= 80
             node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80])
             if node in self.nodemap:
                 prev = node
                 continue
             for p in (p1, p2):
                 if not p in self.nodemap:
                     raise error.LookupError(p, self.indexfile,
                                             _("unknown parent"))
             if linkmapper is None:
                 link = n
             else:
                 link = linkmapper(cs)
 
             if not prev:
                 prev = p1
             # start, size, full unc. size, base (unused), link, p1, p2, node
             e = (revlog.offset_type(start, 0), size, -1, -1, link,
                  self.rev(p1), self.rev(p2), node)
             self.basemap[n] = prev
             self.index.insert(-1, e)
             self.nodemap[node] = n
             prev = node
             n += 1
 
     def inbundle(self, rev):
         """is rev from the bundle"""
         if rev < 0:
             return False
         return rev in self.basemap
     def bundlebase(self, rev):
         return self.basemap[rev]
     def _chunk(self, rev):
         # Warning: in case of bundle, the diff is against bundlebase,
         # not against rev - 1
         # XXX: could use some caching
         if not self.inbundle(rev):
             return revlog.revlog._chunk(self, rev)
         self.bundle.seek(self.start(rev))
         return self.bundle.read(self.length(rev))
 
     def revdiff(self, rev1, rev2):
         """return or calculate a delta between two revisions"""
         if self.inbundle(rev1) and self.inbundle(rev2):
             # hot path for bundle
             revb = self.rev(self.bundlebase(rev2))
             if revb == rev1:
                 return self._chunk(rev2)
         elif not self.inbundle(rev1) and not self.inbundle(rev2):
             return revlog.revlog.revdiff(self, rev1, rev2)
 
         return mdiff.textdiff(self.revision(self.node(rev1)),
                          self.revision(self.node(rev2)))
 
     def revision(self, node):
         """return an uncompressed revision of a given"""
         if node == nullid:
             return ""
 
         text = None
         chain = []
         iter_node = node
         rev = self.rev(iter_node)
         # reconstruct the revision if it is from a changegroup
         while self.inbundle(rev):
             if self._cache and self._cache[0] == iter_node:
                 text = self._cache[2]
                 break
             chain.append(rev)
             iter_node = self.bundlebase(rev)
             rev = self.rev(iter_node)
         if text is None:
             text = revlog.revlog.revision(self, iter_node)
 
         while chain:
             delta = self._chunk(chain.pop())
             text = mdiff.patches(text, [delta])
 
         p1, p2 = self.parents(node)
         if node != revlog.hash(text, p1, p2):
             raise error.RevlogError(_("integrity check failed on %s:%d")
                                      % (self.datafile, self.rev(node)))
 
         self._cache = (node, self.rev(node), text)
         return text
 
     def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
         raise NotImplementedError
     def addgroup(self, revs, linkmapper, transaction):
         raise NotImplementedError
     def strip(self, rev, minlink):
         raise NotImplementedError
     def checksize(self):
         raise NotImplementedError
 
 class bundlechangelog(bundlerevlog, changelog.changelog):
     def __init__(self, opener, bundle):
         changelog.changelog.__init__(self, opener)
         bundlerevlog.__init__(self, opener, self.indexfile, bundle)
 
 class bundlemanifest(bundlerevlog, manifest.manifest):
     def __init__(self, opener, bundle, linkmapper):
         manifest.manifest.__init__(self, opener)
         bundlerevlog.__init__(self, opener, self.indexfile, bundle,
                               linkmapper)
 
 class bundlefilelog(bundlerevlog, filelog.filelog):
     def __init__(self, opener, path, bundle, linkmapper):
         filelog.filelog.__init__(self, opener, path)
         bundlerevlog.__init__(self, opener, self.indexfile, bundle,
                               linkmapper)
 
 class bundlerepository(localrepo.localrepository):
     def __init__(self, ui, path, bundlename):
         self._tempparent = None
         try:
             localrepo.localrepository.__init__(self, ui, path)
         except error.RepoError:
             self._tempparent = tempfile.mkdtemp()
             localrepo.instance(ui, self._tempparent, 1)
             localrepo.localrepository.__init__(self, ui, self._tempparent)
 
         if path:
             self._url = 'bundle:' + util.expandpath(path) + '+' + bundlename
         else:
             self._url = 'bundle:' + bundlename
 
         self.tempfile = None
         f = util.posixfile(bundlename, "rb")
         self.bundle = changegroup.readbundle(f, bundlename)
         if self.bundle.compressed():
             fdtemp, temp = tempfile.mkstemp(prefix="hg-bundle-",
                                             suffix=".hg10un", dir=self.path)
             self.tempfile = temp
             fptemp = os.fdopen(fdtemp, 'wb')
 
             try:
                 fptemp.write("HG10UN")
                 while 1:
                     chunk = self.bundle.read(2**18)
                     if not chunk:
                         break
                     fptemp.write(chunk)
             finally:
                 fptemp.close()
 
             f = util.posixfile(self.tempfile, "rb")
             self.bundle = changegroup.readbundle(f, bundlename)
 
         # dict with the mapping 'filename' -> position in the bundle
         self.bundlefilespos = {}
 
     @util.propertycache
     def changelog(self):
         c = bundlechangelog(self.sopener, self.bundle)
         self.manstart = self.bundle.tell()
         return c
 
     @util.propertycache
     def manifest(self):
         self.bundle.seek(self.manstart)
         m = bundlemanifest(self.sopener, self.bundle, self.changelog.rev)
         self.filestart = self.bundle.tell()
         return m
 
     @util.propertycache
     def manstart(self):
         self.changelog
         return self.manstart
 
     @util.propertycache
     def filestart(self):
         self.manifest
         return self.filestart
 
     def url(self):
         return self._url
 
     def file(self, f):
         if not self.bundlefilespos:
             self.bundle.seek(self.filestart)
             while 1:
                 chunk = self.bundle.chunk()
                 if not chunk:
                     break
                 self.bundlefilespos[chunk] = self.bundle.tell()
                 while 1:
                     c = self.bundle.chunk()
                     if not c:
                         break
 
         if f[0] == '/':
             f = f[1:]
         if f in self.bundlefilespos:
             self.bundle.seek(self.bundlefilespos[f])
             return bundlefilelog(self.sopener, f, self.bundle,
                                  self.changelog.rev)
         else:
             return filelog.filelog(self.sopener, f)
 
     def close(self):
         """Close assigned bundle file immediately."""
         self.bundle.close()
         if self.tempfile is not None:
             os.unlink(self.tempfile)
         if self._tempparent:
             shutil.rmtree(self._tempparent, True)
 
     def cancopy(self):
         return False
 
     def getcwd(self):
         return os.getcwd() # always outside the repo
 
 def instance(ui, path, create):
     if create:
         raise util.Abort(_('cannot create new bundle repository'))
     parentpath = ui.config("bundle", "mainreporoot", "")
     if parentpath:
         # Try to make the full path relative so we get a nice, short URL.
         # In particular, we don't want temp dir names in test outputs.
         cwd = os.getcwd()
         if parentpath == cwd:
             parentpath = ''
         else:
             cwd = os.path.join(cwd,'')
             if parentpath.startswith(cwd):
                 parentpath = parentpath[len(cwd):]
     u = url.url(path)
     path = u.localpath()
     if u.scheme == 'bundle':
         s = path.split("+", 1)
         if len(s) == 1:
             repopath, bundlename = parentpath, s[0]
         else:
             repopath, bundlename = s
     else:
         repopath, bundlename = parentpath, path
     return bundlerepository(ui, repopath, bundlename)
 
 def getremotechanges(ui, repo, other, revs=None, bundlename=None,
-                     force=False, usecommon=False):
-    tmp = discovery.findcommonincoming(repo, other, heads=revs, force=force,
-                                       commononly=usecommon)
+                     force=False):
+    tmp = discovery.findcommonincoming(repo, other, heads=revs, force=force)
     common, incoming, rheads = tmp
     if not incoming:
         try:
             os.unlink(bundlename)
         except OSError:
             pass
         return other, None, None, None
 
     bundle = None
     if bundlename or not other.local():
         # create a bundle (uncompressed if other repo is not local)
 
         if revs is None and other.capable('changegroupsubset'):
             revs = rheads
 
-        if usecommon:
+        if other.capable('getbundle'):
             cg = other.getbundle('incoming', common=common, heads=revs)
         elif revs is None:
             cg = other.changegroup(incoming, "incoming")
         else:
             cg = other.changegroupsubset(incoming, revs, 'incoming')
         bundletype = other.local() and "HG10BZ" or "HG10UN"
         fname = bundle = changegroup.writebundle(cg, bundlename, bundletype)
         # keep written bundle?
         if bundlename:
             bundle = None
         if not other.local():
             # use the created uncompressed bundlerepo
             other = bundlerepository(ui, repo.root, fname)
     return (other, common, incoming, bundle)
 

mercurial/commands.py

@@ -1,4900 +1,4872
 # commands.py - command processing for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from node import hex, bin, nullid, nullrev, short
 from lock import release
 from i18n import _, gettext
 import os, re, sys, difflib, time, tempfile
 import hg, scmutil, util, revlog, extensions, copies, error, bookmarks
 import patch, help, url, encoding, templatekw, discovery
 import archival, changegroup, cmdutil, sshserver, hbisect, hgweb, hgweb.server
 import merge as mergemod
 import minirst, revset, templatefilters
 import dagparser
 
 # 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:`forget`.
 
     If no names are given, add all files to the repository.
 
     .. container:: verbose
 
        An example showing how new (unknown) files are added
        automatically by :hg:`add`::
 
          $ ls
          foo.c
          $ hg status
          ? foo.c
          $ hg add
          adding foo.c
          $ hg status
          A foo.c
 
     Returns 0 if all files are successfully added.
     """
 
     m = cmdutil.match(repo, pats, opts)
     rejected = cmdutil.add(ui, repo, m, opts.get('dry_run'),
                            opts.get('subrepos'), prefix="")
     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/--similarity option to detect renamed files. With a
     parameter greater than 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. After using this option, :hg:`status -C` can be
     used to check which files were identified as moved or renamed.
 
     Returns 0 if all files are successfully added.
     """
     try:
         sim = float(opts.get('similarity') or 100)
     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 / 100.0)
 
 def annotate(ui, repo, *pats, **opts):
     """show changeset information by line for each file
 
     List changes in files, showing the revision id responsible for
     each line
 
     This command is useful for discovering when a change was made and
     by whom.
 
     Without the -a/--text option, annotate will avoid processing files
     it detects as binary. With -a, annotate will annotate the file
     anyway, although the results will probably be neither useful
     nor desirable.
 
     Returns 0 on success.
     """
     if opts.get('follow'):
         # --follow is deprecated and now just an alias for -f/--file
         # to mimic the behavior of Mercurial before version 1.5
         opts['file'] = 1
 
     datefunc = ui.quiet and util.shortdate or util.datestr
     getdate = util.cachefunc(lambda x: datefunc(x[0].date()))
 
     if not pats:
         raise util.Abort(_('at least one filename or pattern is 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),
              ('file', lambda x: x[0].path()),
             ]
 
     if (not opts.get('user') and not opts.get('changeset')
         and not opts.get('date') and not opts.get('file')):
         opts['number'] = 1
 
     linenumber = opts.get('line_number') is not None
     if linenumber and (not opts.get('changeset')) and (not opts.get('number')):
         raise util.Abort(_('at least one of -n/-c is required for -l'))
 
     funcmap = [func for op, func in opmap if opts.get(op)]
     if linenumber:
         lastfunc = funcmap[-1]
         funcmap[-1] = lambda x: "%s:%s" % (lastfunc(x), x[1])
 
     def bad(x, y):
         raise util.Abort("%s: %s" % (x, y))
 
     ctx = cmdutil.revsingle(repo, opts.get('rev'))
     m = cmdutil.match(repo, pats, opts)
     m.bad = bad
     follow = not opts.get('no_follow')
     for abs in ctx.walk(m):
         fctx = ctx[abs]
         if not opts.get('text') and util.binary(fctx.data()):
             ui.write(_("%s: binary file\n") % ((pats and m.rel(abs)) or abs))
             continue
 
         lines = fctx.annotate(follow=follow, linenumber=linenumber)
         pieces = []
 
         for f in funcmap:
             l = [f(n) for n, dummy in lines]
             if l:
                 sized = [(x, encoding.colwidth(x)) for x in l]
                 ml = max([w for x, w in sized])
                 pieces.append(["%s%s" % (' ' * (ml - w), x) for x, w in sized])
 
         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 an unversioned archive of a repository revision
 
     By default, the revision used is the parent of the working
     directory; use -r/--rev to specify a different revision.
 
     The archive type is automatically detected based on file
     extension (or override using -t/--type).
 
     Valid types are:
 
     :``files``: a directory full of files (default)
     :``tar``:   tar archive, uncompressed
     :``tbz2``:  tar archive, compressed using bzip2
     :``tgz``:   tar archive, compressed using gzip
     :``uzip``:  zip archive, uncompressed
     :``zip``:   zip archive, compressed using deflate
 
     The exact name of the destination archive or directory is given
     using a format string; see :hg:`help export` for details.
 
     Each member added to an archive file has a directory prefix
     prepended. Use -p/--prefix to specify a format string for the
     prefix. The default is the basename of the archive, with suffixes
     removed.
 
     Returns 0 on success.
     '''
 
     ctx = cmdutil.revsingle(repo, opts.get('rev'))
     if not ctx:
         raise util.Abort(_('no working directory: please specify a revision'))
     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'))
 
     kind = opts.get('type') or archival.guesskind(dest) or 'files'
     prefix = opts.get('prefix')
 
     if dest == '-':
         if kind == 'files':
             raise util.Abort(_('cannot archive plain files to stdout'))
         dest = sys.stdout
         if not prefix:
             prefix = os.path.basename(repo.root) + '-%h'
 
     prefix = cmdutil.make_filename(repo, prefix, node)
     matchfn = cmdutil.match(repo, [], opts)
     archival.archive(repo, dest, node, kind, not opts.get('no_decode'),
                      matchfn, prefix, subrepos=opts.get('subrepos'))
 
 def backout(ui, repo, node=None, rev=None, **opts):
     '''reverse effect of earlier changeset
 
     Prepare a new changeset with the effect of REV undone in the
     current working directory.
 
     If REV is the parent of the working directory, then this new changeset
     is committed automatically. Otherwise, hg needs to merge the
     changes and the merged result is left uncommitted.
 
     By default, the pending changeset will have one parent,
     maintaining a linear history. With --merge, the pending changeset
     will instead have two parents: the old parent of the working
     directory and a new child of REV that simply undoes REV.
 
     Before version 1.7, the behavior without --merge was equivalent to
     specifying --merge followed by :hg:`update --clean .` to cancel
     the merge and leave the child of REV as a head to be merged
     separately.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success.
     '''
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not rev:
         rev = node
 
     if not rev:
         raise util.Abort(_("please specify a revision to backout"))
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     cmdutil.bail_if_changed(repo)
     node = cmdutil.revsingle(repo, rev).node()
 
     op1, op2 = repo.dirstate.parents()
     a = repo.changelog.ancestor(op1, node)
     if a != node:
         raise util.Abort(_('cannot backout change on a different branch'))
 
     p1, p2 = repo.changelog.parents(node)
     if p1 == nullid:
         raise util.Abort(_('cannot backout a change with no parents'))
     if p2 != nullid:
         if not opts.get('parent'):
             raise util.Abort(_('cannot backout 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.get('parent'):
             raise util.Abort(_('cannot use --parent on non-merge changeset'))
         parent = p1
 
     # the backout should appear on the same branch
     branch = repo.dirstate.branch()
     hg.clean(repo, node, show_stats=False)
     repo.dirstate.setbranch(branch)
     revert_opts = opts.copy()
     revert_opts['date'] = None
     revert_opts['all'] = True
     revert_opts['rev'] = hex(parent)
     revert_opts['no_backup'] = None
     revert(ui, repo, **revert_opts)
     if not opts.get('merge') and op1 != node:
         try:
             ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
             return hg.update(repo, op1)
         finally:
             ui.setconfig('ui', 'forcemerge', '')
 
     commit_opts = opts.copy()
     commit_opts['addremove'] = False
     if not commit_opts['message'] and not commit_opts['logfile']:
         # we don't translate commit messages
         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 opts.get('merge') and op1 != node:
         hg.clean(repo, op1, show_stats=False)
         ui.status(_('merging with changeset %s\n')
                   % nice(repo.changelog.tip()))
         try:
             ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
             return hg.merge(repo, hex(repo.changelog.tip()))
         finally:
             ui.setconfig('ui', 'forcemerge', '')
     return 0
 
 def bisect(ui, repo, rev=None, extra=None, command=None,
                reset=None, good=None, bad=None, skip=None, extend=None,
                noupdate=None):
     """subdivision search of changesets
 
     This command helps to find changesets which introduce problems. To
     use, mark the earliest changeset you know exhibits the problem as
     bad, then mark the latest changeset which is free from the problem
     as good. Bisect will update your working directory to a revision
     for testing (unless the -U/--noupdate option is specified). Once
     you have performed tests, mark the working directory as good or
     bad, and bisect will either update to another candidate changeset
     or announce that it has found the bad revision.
 
     As a shortcut, you can also use the revision argument to mark a
     revision as good or bad without checking it out first.
 
     If you supply a command, it will be used for automatic bisection.
     Its exit status will be used to mark revisions as good or bad:
     status 0 means good, 125 means to skip the revision, 127
     (command not found) will abort the bisection, and any other
     non-zero exit status means the revision is bad.
 
     Returns 0 on success.
     """
     def extendbisectrange(nodes, good):
         # bisect is incomplete when it ends on a merge node and
         # one of the parent was not checked.
         parents = repo[nodes[0]].parents()
         if len(parents) > 1:
             side = good and state['bad'] or state['good']
             num = len(set(i.node() for i in parents) & set(side))
             if num == 1:
                  return parents[0].ancestor(parents[1])
         return None
 
     def print_result(nodes, good):
         displayer = cmdutil.show_changeset(ui, repo, {})
         if len(nodes) == 1:
             # narrowed it down to a single revision
             if good:
                 ui.write(_("The first good revision is:\n"))
             else:
                 ui.write(_("The first bad revision is:\n"))
             displayer.show(repo[nodes[0]])
             extendnode = extendbisectrange(nodes, good)
             if extendnode is not None:
                 ui.write(_('Not all ancestors of this changeset have been'
                            ' checked.\nUse bisect --extend to continue the '
                            'bisection from\nthe common ancestor, %s.\n')
                          % extendnode)
         else:
             # multiple possible revisions
             if good:
                 ui.write(_("Due to skipped revisions, the first "
                         "good revision could be any of:\n"))
             else:
                 ui.write(_("Due to skipped revisions, the first "
                         "bad revision could be any of:\n"))
             for n in nodes:
                 displayer.show(repo[n])
         displayer.close()
 
     def check_state(state, interactive=True):
         if not state['good'] or not state['bad']:
             if (good or bad or skip or reset) and interactive:
                 return
             if not state['good']:
                 raise util.Abort(_('cannot bisect (no known good revisions)'))
             else:
                 raise util.Abort(_('cannot bisect (no known bad revisions)'))
         return True
 
     # 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 + extend + bool(command) > 1:
         raise util.Abort(_('incompatible arguments'))
 
     if reset:
         p = repo.join("bisect.state")
         if os.path.exists(p):
             os.unlink(p)
         return
 
     state = hbisect.load_state(repo)
 
     if command:
         changesets = 1
         try:
             while changesets:
                 # update state
                 status = util.system(command)
                 if status == 125:
                     transition = "skip"
                 elif status == 0:
                     transition = "good"
                 # status < 0 means process was killed
                 elif status == 127:
                     raise util.Abort(_("failed to execute %s") % command)
                 elif status < 0:
                     raise util.Abort(_("%s killed") % command)
                 else:
                     transition = "bad"
                 ctx = cmdutil.revsingle(repo, rev)
                 rev = None # clear for future iterations
                 state[transition].append(ctx.node())
                 ui.status(_('Changeset %d:%s: %s\n') % (ctx, ctx, transition))
                 check_state(state, interactive=False)
                 # bisect
                 nodes, changesets, good = hbisect.bisect(repo.changelog, state)
                 # update to next check
                 cmdutil.bail_if_changed(repo)
                 hg.clean(repo, nodes[0], show_stats=False)
         finally:
             hbisect.save_state(repo, state)
         print_result(nodes, good)
         return
 
     # update state
 
     if rev:
         nodes = [repo.lookup(i) for i in cmdutil.revrange(repo, [rev])]
     else:
         nodes = [repo.lookup('.')]
 
     if good or bad or skip:
         if good:
             state['good'] += nodes
         elif bad:
             state['bad'] += nodes
         elif skip:
             state['skip'] += nodes
         hbisect.save_state(repo, state)
 
     if not check_state(state):
         return
 
     # actually bisect
     nodes, changesets, good = hbisect.bisect(repo.changelog, state)
     if extend:
         if not changesets:
             extendnode = extendbisectrange(nodes, good)
             if extendnode is not None:
                 ui.write(_("Extending search to changeset %d:%s\n"
                          % (extendnode.rev(), extendnode)))
                 if noupdate:
                     return
                 cmdutil.bail_if_changed(repo)
                 return hg.clean(repo, extendnode.node())
         raise util.Abort(_("nothing to extend"))
 
     if changesets == 0:
         print_result(nodes, good)
     else:
         assert len(nodes) == 1 # only a single node can be tested next
         node = nodes[0]
         # compute the approximate number of remaining tests
         tests, size = 0, 2
         while size <= changesets:
             tests, size = tests + 1, size * 2
         rev = repo.changelog.rev(node)
         ui.write(_("Testing changeset %d:%s "
                    "(%d changesets remaining, ~%d tests)\n")
                  % (rev, short(node), changesets, tests))
         if not noupdate:
             cmdutil.bail_if_changed(repo)
             return hg.clean(repo, node)
 
 def bookmark(ui, repo, mark=None, rev=None, force=False, delete=False, rename=None):
     '''track a line of development with movable markers
 
     Bookmarks are pointers to certain commits that move when
     committing. Bookmarks are local. They can be renamed, copied and
     deleted. It is possible to use bookmark names in :hg:`merge` and
     :hg:`update` to merge and update respectively to a given bookmark.
 
     You can use :hg:`bookmark NAME` to set a bookmark on the working
     directory's parent revision with the given name. If you specify
     a revision using -r REV (where REV may be an existing bookmark),
     the bookmark is assigned to that revision.
 
     Bookmarks can be pushed and pulled between repositories (see :hg:`help
     push` and :hg:`help pull`). This requires both the local and remote
     repositories to support bookmarks. For versions prior to 1.8, this means
     the bookmarks extension must be enabled.
     '''
     hexfn = ui.debugflag and hex or short
     marks = repo._bookmarks
     cur   = repo.changectx('.').node()
 
     if rename:
         if rename not in marks:
             raise util.Abort(_("bookmark '%s' does not exist") % rename)
         if mark in marks and not force:
             raise util.Abort(_("bookmark '%s' already exists "
                                "(use -f to force)") % mark)
         if mark is None:
             raise util.Abort(_("new bookmark name required"))
         marks[mark] = marks[rename]
         if repo._bookmarkcurrent == rename:
             bookmarks.setcurrent(repo, mark)
         del marks[rename]
         bookmarks.write(repo)
         return
 
     if delete:
         if mark is None:
             raise util.Abort(_("bookmark name required"))
         if mark not in marks:
             raise util.Abort(_("bookmark '%s' does not exist") % mark)
         if mark == repo._bookmarkcurrent:
             bookmarks.setcurrent(repo, None)
         del marks[mark]
         bookmarks.write(repo)
         return
 
     if mark is not None:
         if "\n" in mark:
             raise util.Abort(_("bookmark name cannot contain newlines"))
         mark = mark.strip()
         if not mark:
             raise util.Abort(_("bookmark names cannot consist entirely of "
                                "whitespace"))
         if mark in marks and not force:
             raise util.Abort(_("bookmark '%s' already exists "
                                "(use -f to force)") % mark)
         if ((mark in repo.branchtags() or mark == repo.dirstate.branch())
             and not force):
             raise util.Abort(
                 _("a bookmark cannot have the name of an existing branch"))
         if rev:
             marks[mark] = repo.lookup(rev)
         else:
             marks[mark] = repo.changectx('.').node()
         if repo.changectx('.').node() == marks[mark]:
             bookmarks.setcurrent(repo, mark)
         bookmarks.write(repo)
         return
 
     if mark is None:
         if rev:
             raise util.Abort(_("bookmark name required"))
         if len(marks) == 0:
             ui.status(_("no bookmarks set\n"))
         else:
             for bmark, n in sorted(marks.iteritems()):
                 current = repo._bookmarkcurrent
                 if bmark == current and n == cur:
                     prefix, label = '*', 'bookmarks.current'
                 else:
                     prefix, label = ' ', ''
 
                 if ui.quiet:
                     ui.write("%s\n" % bmark, label=label)
                 else:
                     ui.write(" %s %-25s %d:%s\n" % (
                         prefix, bmark, repo.changelog.rev(n), hexfn(n)),
                         label=label)
         return
 
 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 will not exist
     in the repository until the next commit). Standard practice
     recommends that primary development take place on the 'default'
     branch.
 
     Unless -f/--force is specified, branch will not let you set a
     branch name that already exists, even if it's inactive.
 
     Use -C/--clean to reset the working directory branch to that of
     the parent of the working directory, negating a previous branch
     change.
 
     Use the command :hg:`update` to switch to an existing branch. Use
     :hg:`commit --close-branch` to mark this branch as closed.
 
     Returns 0 on success.
     """
 
     if opts.get('clean'):
         label = repo[None].p1().branch()
         repo.dirstate.setbranch(label)
         ui.status(_('reset working directory to branch %s\n') % label)
     elif label:
         if not opts.get('force') and label in repo.branchtags():
             if label not in [p.branch() for p in repo.parents()]:
                 raise util.Abort(_('a branch of the same name already exists'
                                    " (use 'hg update' to switch to it)"))
         repo.dirstate.setbranch(label)
         ui.status(_('marked working directory as branch %s\n') % label)
     else:
         ui.write("%s\n" % repo.dirstate.branch())
 
 def branches(ui, repo, active=False, closed=False):
     """list repository named branches
 
     List the repository's named branches, indicating which ones are
     inactive. If -c/--closed is specified, also list branches which have
     been marked closed (see :hg:`commit --close-branch`).
 
     If -a/--active is specified, only show active branches. A branch
     is considered active if it contains repository heads.
 
     Use the command :hg:`update` to switch to an existing branch.
 
     Returns 0.
     """
 
     hexfunc = ui.debugflag and hex or short
     activebranches = [repo[n].branch() for n in repo.heads()]
     def testactive(tag, node):
         realhead = tag in activebranches
         open = node in repo.branchheads(tag, closed=False)
         return realhead and open
     branches = sorted([(testactive(tag, node), repo.changelog.rev(node), tag)
                           for tag, node in repo.branchtags().items()],
                       reverse=True)
 
     for isactive, node, tag in branches:
         if (not active) or isactive:
             if ui.quiet:
                 ui.write("%s\n" % tag)
             else:
                 hn = repo.lookup(node)
                 if isactive:
                     label = 'branches.active'
                     notice = ''
                 elif hn not in repo.branchheads(tag, closed=False):
                     if not closed:
                         continue
                     label = 'branches.closed'
                     notice = _(' (closed)')
                 else:
                     label = 'branches.inactive'
                     notice = _(' (inactive)')
                 if tag == repo.dirstate.branch():
                     label = 'branches.current'
                 rev = str(node).rjust(31 - encoding.colwidth(tag))
                 rev = ui.label('%s:%s' % (rev, hexfunc(hn)), 'log.changeset')
                 tag = ui.label(tag, label)
                 ui.write("%s %s%s\n" % (tag, rev, notice))
 
 def bundle(ui, repo, fname, dest=None, **opts):
     """create a changegroup file
 
     Generate a compressed changegroup file collecting changesets not
     known to be in another repository.
 
     If you omit the destination repository, then hg assumes the
     destination will have all the nodes you specify with --base
     parameters. To create a bundle containing all changesets, use
     -a/--all (or --base null).
 
     You can change compression method with the -t/--type option.
     The available compression methods are: none, bzip2, and
     gzip (by default, bundles are compressed using bzip2).
 
     The bundle file can then be transferred using conventional means
     and applied to another repository with the unbundle or pull
     command. This is useful when direct push and pull are not
     available or when exporting an entire repository is undesirable.
 
     Applying bundles preserves all changeset contents including
     permissions, copy/rename information, and revision history.
 
     Returns 0 on success, 1 if no changes found.
     """
     revs = None
     if 'rev' in opts:
         revs = cmdutil.revrange(repo, opts['rev'])
 
     if opts.get('all'):
         base = ['null']
     else:
         base = cmdutil.revrange(repo, opts.get('base'))
     if base:
         if dest:
             raise util.Abort(_("--base is incompatible with specifying "
                                "a destination"))
-        base = [repo.lookup(rev) for rev in base]
-        # create the right base
-        # XXX: nodesbetween / changegroup* should be "fixed" instead
-        o = []
-        has = set((nullid,))
-        for n in base:
-            has.update(repo.changelog.reachable(n))
-        if revs:
-            revs = [repo.lookup(rev) for rev in revs]
-            visit = revs[:]
-            has.difference_update(visit)
-        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:
-                if n not in has:
-                    o.append(n)
-            else:
-                for p in parents:
-                    if p not in seen:
-                        seen[p] = 1
-                        visit.append(p)
+        common = [repo.lookup(rev) for rev in base]
     else:
         dest = ui.expandpath(dest or 'default-push', dest or 'default')
         dest, branches = hg.parseurl(dest, opts.get('branch'))
         other = hg.repository(hg.remoteui(repo, opts), dest)
         revs, checkout = hg.addbranchrevs(repo, other, branches, revs)
-        if revs:
-            revs = [repo.lookup(rev) for rev in revs]
-        o = discovery.findoutgoing(repo, other, force=opts.get('force'))
-
-    if not o:
+        inc = discovery.findcommonincoming(repo, other, force=opts.get('force'))
+        common, _anyinc, _heads = inc
+
+    nodes = revs and map(repo.lookup, revs) or revs
+    cg = repo.getbundle('bundle', common=common, heads=nodes)
+    if not cg:
         ui.status(_("no changes found\n"))
         return 1
 
-    if revs:
-        cg = repo.changegroupsubset(o, revs, 'bundle')
-    else:
-        cg = repo.changegroup(o, 'bundle')
-
     bundletype = opts.get('type', 'bzip2').lower()
     btypes = {'none': 'HG10UN', 'bzip2': 'HG10BZ', 'gzip': 'HG10GZ'}
     bundletype = btypes.get(bundletype)
     if bundletype not in changegroup.bundletypes:
         raise util.Abort(_('unknown bundle type specified with --type'))
 
     changegroup.writebundle(cg, fname, bundletype)
 
 def cat(ui, repo, file1, *pats, **opts):
     """output the current or given revision of files
 
     Print the specified files as they were at the given revision. If
     no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     Output may be to a file, in which case the name of the file is
     given using a format string. The formatting rules are the same as
     for the export command, with the following additions:
 
     :``%s``: basename of file being printed
     :``%d``: dirname of file being printed, or '.' if in repository root
     :``%p``: root-relative path name of file being printed
 
     Returns 0 on success.
     """
     ctx = cmdutil.revsingle(repo, opts.get('rev'))
     err = 1
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in ctx.walk(m):
         fp = cmdutil.make_file(repo, opts.get('output'), ctx.node(), pathname=abs)
         data = ctx[abs].data()
         if opts.get('decode'):
             data = repo.wwritedata(abs, data)
         fp.write(data)
         fp.close()
         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.
 
     See :hg:`help urls` 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.
     Please see :hg:`help urls` for important details about ``ssh://`` URLs.
 
     A set of changesets (tags, or branch names) to pull may be specified
     by listing each changeset (tag, or branch name) with -r/--rev.
     If -r/--rev is used, the cloned repository will contain only a subset
     of the changesets of the source repository. Only the set of changesets
     defined by all -r/--rev options (including all their ancestors)
     will be pulled into the destination repository.
     No subsequent changesets (including subsequent tags) will be present
     in the destination.
 
     Using -r/--rev (or 'clone src#rev dest') implies --pull, even for
     local source repositories.
 
     For efficiency, hardlinks are used for cloning whenever the source
     and destination are on the same filesystem (note this applies only
     to the repository data, not to the working directory). Some
     filesystems, such as AFS, implement hardlinking incorrectly, but
     do not report errors. In these cases, use the --pull option to
     avoid hardlinking.
 
     In some cases, you can clone repositories and the working directory
     using full hardlinks with ::
 
       $ cp -al REPO REPOCLONE
 
     This is the fastest way to clone, but it is not always safe. The
     operation is not atomic (making sure REPO is not modified during
     the operation is up to you) and you have to make sure your editor
     breaks hardlinks (Emacs and most Linux Kernel tools do so). Also,
     this is not compatible with certain extensions that place their
     metadata under the .hg directory, such as mq.
 
     Mercurial will update the working directory to the first applicable
     revision from this list:
 
     a) null if -U or the source repository has no changesets
     b) if -u . and the source repository is local, the first parent of
        the source repository's working directory
     c) the changeset specified with -u (if a branch name, this means the
        latest head of that branch)
     d) the changeset specified with -r
     e) the tipmost head specified with -b
     f) the tipmost head specified with the url#branch source syntax
     g) the tipmost head of the default branch
     h) tip
 
     Returns 0 on success.
     """
     if opts.get('noupdate') and opts.get('updaterev'):
         raise util.Abort(_("cannot specify both --noupdate and --updaterev"))
 
     r = hg.clone(hg.remoteui(ui, opts), source, dest,
                  pull=opts.get('pull'),
                  stream=opts.get('uncompressed'),
                  rev=opts.get('rev'),
                  update=opts.get('updaterev') or not opts.get('noupdate'),
                  branch=opts.get('branch'))
 
     return r is None
 
 def commit(ui, repo, *pats, **opts):
     """commit the specified files or all outstanding changes
 
     Commit changes to the given files into the repository. Unlike a
     centralized SCM, this operation is a local operation. See
     :hg:`push` for a way to actively distribute your changes.
 
     If a list of files is omitted, all changes reported by :hg:`status`
     will be committed.
 
     If you are committing the result of a merge, do not provide any
     filenames or -I/-X filters.
 
     If no commit message is specified, Mercurial starts your
     configured editor where you can enter a message. In case your
     commit fails, you will find a backup of your message in
     ``.hg/last-message.txt``.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success, 1 if nothing changed.
     """
     extra = {}
     if opts.get('close_branch'):
         if repo['.'].node() not in repo.branchheads():
             # The topo heads set is included in the branch heads set of the
             # current branch, so it's sufficient to test branchheads
             raise util.Abort(_('can only close branch heads'))
         extra['close'] = 1
     e = cmdutil.commiteditor
     if opts.get('force_editor'):
         e = cmdutil.commitforceeditor
 
     def commitfunc(ui, repo, message, match, opts):
         return repo.commit(message, opts.get('user'), opts.get('date'), match,
                            editor=e, extra=extra)
 
     branch = repo[None].branch()
     bheads = repo.branchheads(branch)
 
     node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
     if not node:
         stat = repo.status(match=cmdutil.match(repo, pats, opts))
         if stat[3]:
             ui.status(_("nothing changed (%d missing files, see 'hg status')\n")
                       % len(stat[3]))
         else:
             ui.status(_("nothing changed\n"))
         return 1
 
     ctx = repo[node]
     parents = ctx.parents()
 
     if bheads and not [x for x in parents
                        if x.node() in bheads and x.branch() == branch]:
         ui.status(_('created new head\n'))
         # The message is not printed for initial roots. For the other
         # changesets, it is printed in the following situations:
         #
         # Par column: for the 2 parents with ...
         #   N: null or no parent
         #   B: parent is on another named branch
         #   C: parent is a regular non head changeset
         #   H: parent was a branch head of the current branch
         # Msg column: whether we print "created new head" message
         # In the following, it is assumed that there already exists some
         # initial branch heads of the current branch, otherwise nothing is
         # printed anyway.
         #
         # Par Msg Comment
         # NN   y  additional topo root
         #
         # BN   y  additional branch root
         # CN   y  additional topo head
         # HN   n  usual case
         #
         # BB   y  weird additional branch root
         # CB   y  branch merge
         # HB   n  merge with named branch
         #
         # CC   y  additional head from merge
         # CH   n  merge with a head
         #
         # HH   n  head merge: head count decreases
 
     if not opts.get('close_branch'):
         for r in parents:
             if r.extra().get('close') and r.branch() == branch:
                 ui.status(_('reopening closed branch head %d\n') % r)
 
     if ui.debugflag:
         ui.write(_('committed changeset %d:%s\n') % (int(ctx), ctx.hex()))
     elif ui.verbose:
         ui.write(_('committed changeset %d:%s\n') % (int(ctx), ctx))
 
 def copy(ui, repo, *pats, **opts):
     """mark files as copied for the next commit
 
     Mark dest as having copies of source files. If dest is a
     directory, copies are put in that directory. If dest is a file,
     the source must be a single file.
 
     By default, this command copies the contents of files as they
     exist in the working directory. If invoked with -A/--after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect with the next commit. To undo a copy
     before that, see :hg:`revert`.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts)
     finally:
         wlock.release()
 
 def debugancestor(ui, repo, *args):
     """find the ancestor revision of two revisions in a given index"""
     if len(args) == 3:
         index, rev1, rev2 = args
         r = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), index)
         lookup = r.lookup
     elif len(args) == 2:
         if not repo:
             raise util.Abort(_("there is no Mercurial repository here "
                                "(.hg not found)"))
         rev1, rev2 = args
         r = repo.changelog
         lookup = repo.lookup
     else:
         raise util.Abort(_('either two or three arguments required'))
     a = r.ancestor(lookup(rev1), lookup(rev2))
     ui.write("%d:%s\n" % (r.rev(a), hex(a)))
 
 def debugbuilddag(ui, repo, text,
                   mergeable_file=False,
                   appended_file=False,
                   overwritten_file=False,
                   new_file=False):
     """builds a repo with a given dag from scratch in the current empty repo
 
     Elements:
 
      - "+n" is a linear run of n nodes based on the current default parent
      - "." is a single node based on the current default parent
      - "$" resets the default parent to null (implied at the start);
            otherwise the default parent is always the last node created
      - "<p" sets the default parent to the backref p
      - "*p" is a fork at parent p, which is a backref
      - "*p1/p2" is a merge of parents p1 and p2, which are backrefs
      - "/p2" is a merge of the preceding node and p2
      - ":tag" defines a local tag for the preceding node
      - "@branch" sets the named branch for subsequent nodes
      - "!command" runs the command using your shell
      - "!!my command\\n" is like "!", but to the end of the line
      - "#...\\n" is a comment up to the end of the line
 
     Whitespace between the above elements is ignored.
 
     A backref is either
 
      - a number n, which references the node curr-n, where curr is the current
        node, or
      - the name of a local tag you placed earlier using ":tag", or
      - empty to denote the default parent.
 
     All string valued-elements are either strictly alphanumeric, or must
     be enclosed in double quotes ("..."), with "\\" as escape character.
 
     Note that the --overwritten-file and --appended-file options imply the
     use of "HGMERGE=internal:local" during DAG buildup.
     """
 
     if not (mergeable_file or appended_file or overwritten_file or new_file):
         raise util.Abort(_('need at least one of -m, -a, -o, -n'))
 
     if len(repo.changelog) > 0:
         raise util.Abort(_('repository is not empty'))
 
     if overwritten_file or appended_file:
         # we don't want to fail in merges during buildup
         os.environ['HGMERGE'] = 'internal:local'
 
     def writefile(fname, text, fmode="wb"):
         f = open(fname, fmode)
         try:
             f.write(text)
         finally:
             f.close()
 
     if mergeable_file:
         linesperrev = 2
         # determine number of revs in DAG
         n = 0
         for type, data in dagparser.parsedag(text):
             if type == 'n':
                 n += 1
         # make a file with k lines per rev
         writefile("mf", "\n".join(str(i) for i in xrange(0, n * linesperrev))
                   + "\n")
 
     at = -1
     atbranch = 'default'
     for type, data in dagparser.parsedag(text):
         if type == 'n':
             ui.status('node %s\n' % str(data))
             id, ps = data
             p1 = ps[0]
             if p1 != at:
                 update(ui, repo, node=str(p1), clean=True)
                 at = p1
             if repo.dirstate.branch() != atbranch:
                 branch(ui, repo, atbranch, force=True)
             if len(ps) > 1:
                 p2 = ps[1]
                 merge(ui, repo, node=p2)
 
             if mergeable_file:
                 f = open("mf", "rb+")
                 try:
                     lines = f.read().split("\n")
                     lines[id * linesperrev] += " r%i" % id
                     f.seek(0)
                     f.write("\n".join(lines))
                 finally:
                     f.close()
 
             if appended_file:
                 writefile("af", "r%i\n" % id, "ab")
 
             if overwritten_file:
                 writefile("of", "r%i\n" % id)
 
             if new_file:
                 writefile("nf%i" % id, "r%i\n" % id)
 
             commit(ui, repo, addremove=True, message="r%i" % id, date=(id, 0))
             at = id
         elif type == 'l':
             id, name = data
             ui.status('tag %s\n' % name)
             tag(ui, repo, name, local=True)
         elif type == 'a':
             ui.status('branch %s\n' % data)
             atbranch = data
         elif type in 'cC':
             r = util.system(data, cwd=repo.root)
             if r:
                 desc, r = util.explain_exit(r)
                 raise util.Abort(_('%s command %s') % (data, desc))
 
 def debugcommands(ui, cmd='', *args):
     """list all available commands and options"""
     for cmd, vals in sorted(table.iteritems()):
         cmd = cmd.split('|')[0].strip('^')
         opts = ', '.join([i[1] for i in vals[1]])
         ui.write('%s: %s\n' % (cmd, opts))
 
 def debugcomplete(ui, cmd='', **opts):
     """returns the completion list associated with the given command"""
 
     if opts.get('options'):
         options = []
         otables = [globalopts]
         if cmd:
             aliases, entry = cmdutil.findcmd(cmd, table, False)
             otables.append(entry[1])
         for t in otables:
             for o in t:
                 if "(DEPRECATED)" in o[3]:
                     continue
                 if o[0]:
                     options.append('-%s' % o[0])
                 options.append('--%s' % o[1])
         ui.write("%s\n" % "\n".join(options))
         return
 
     cmdlist = cmdutil.findpossible(cmd, table)
     if ui.verbose:
         cmdlist = [' '.join(c[0]) for c in cmdlist.values()]
     ui.write("%s\n" % "\n".join(sorted(cmdlist)))
 
 def debugfsinfo(ui, path = "."):
     """show information detected about current filesystem"""
     open('.debugfsinfo', 'w').write('')
     ui.write('exec: %s\n' % (util.checkexec(path) and 'yes' or 'no'))
     ui.write('symlink: %s\n' % (util.checklink(path) and 'yes' or 'no'))
     ui.write('case-sensitive: %s\n' % (util.checkcase('.debugfsinfo')
                                 and 'yes' or 'no'))
     os.unlink('.debugfsinfo')
 
 def debugrebuildstate(ui, repo, rev="tip"):
     """rebuild the dirstate as it would look like for the given revision"""
     ctx = cmdutil.revsingle(repo, rev)
     wlock = repo.wlock()
     try:
         repo.dirstate.rebuild(ctx.node(), ctx.manifest())
     finally:
         wlock.release()
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     m1 = repo[parent1].manifest()
     m2 = repo[parent2].manifest()
     errors = 0
     for f in repo.dirstate:
         state = repo.dirstate[f]
         if state in "nr" and f not in m1:
             ui.warn(_("%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in "a" and f in m1:
             ui.warn(_("%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in "m" and f not in m1 and f not in m2:
             ui.warn(_("%s in state %s, but not in either manifest\n") %
                     (f, state))
             errors += 1
     for f in m1:
         state = repo.dirstate[f]
         if state not in "nrm":
             ui.warn(_("%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         error = _(".hg/dirstate inconsistent with current parent's manifest")
         raise util.Abort(error)
 
 def showconfig(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
     With no arguments, print names and values of all config items.
 
     With one argument of the form section.name, print just the value
     of that config item.
 
     With multiple arguments, print names and values of all config
     items with matching section names.
 
     With --debug, the source (filename and line number) is printed
     for each config item.
 
     Returns 0 on success.
     """
 
     for f in scmutil.rcpath():
         ui.debug(_('read config from: %s\n') % f)
     untrusted = bool(opts.get('untrusted'))
     if values:
         sections = [v for v in values if '.' not in v]
         items = [v for v in values if '.' in v]
         if len(items) > 1 or items and sections:
             raise util.Abort(_('only one config item permitted'))
     for section, name, value in ui.walkconfig(untrusted=untrusted):
         value = str(value).replace('\n', '\\n')
         sectname = section + '.' + name
         if values:
             for v in values:
                 if v == section:
                     ui.debug('%s: ' %
                              ui.configsource(section, name, untrusted))
                     ui.write('%s=%s\n' % (sectname, value))
                 elif v == sectname:
                     ui.debug('%s: ' %
                              ui.configsource(section, name, untrusted))
                     ui.write(value, '\n')
         else:
             ui.debug('%s: ' %
                      ui.configsource(section, name, untrusted))
             ui.write('%s=%s\n' % (sectname, value))
 
 def debugknown(ui, repopath, *ids, **opts):
     """test whether node ids are known to a repo
 
     Every ID must be a full-length hex node id string. Returns a list of 0s and 1s
     indicating unknown/known.
     """
     repo = hg.repository(ui, repopath)
     if not repo.capable('known'):
         raise util.Abort("known() not supported by target repository")
     flags = repo.known([bin(s) for s in ids])
     ui.write("%s\n" % ("".join([f and "1" or "0" for f in flags])))
 
 def debugbundle(ui, bundlepath, all=None, **opts):
     """lists the contents of a bundle"""
     f = url.open(ui, bundlepath)
     try:
         gen = changegroup.readbundle(f, bundlepath)
         if all:
             ui.write("format: id, p1, p2, cset, len(delta)\n")
 
             def showchunks(named):
                 ui.write("\n%s\n" % named)
                 while 1:
                     chunkdata = gen.parsechunk()
                     if not chunkdata:
                         break
                     node = chunkdata['node']
                     p1 = chunkdata['p1']
                     p2 = chunkdata['p2']
                     cs = chunkdata['cs']
                     delta = chunkdata['data']
                     ui.write("%s %s %s %s %s\n" %
                              (hex(node), hex(p1), hex(p2),
                               hex(cs), len(delta)))
 
             showchunks("changelog")
             showchunks("manifest")
             while 1:
                 fname = gen.chunk()
                 if not fname:
                     break
                 showchunks(fname)
         else:
             while 1:
                 chunkdata = gen.parsechunk()
                 if not chunkdata:
                     break
                 node = chunkdata['node']
                 ui.write("%s\n" % hex(node))
     finally:
         f.close()
 
 def debuggetbundle(ui, repopath, bundlepath, head=None, common=None, **opts):
     """retrieves a bundle from a repo
 
     Every ID must be a full-length hex node id string. Saves the bundle to the
     given file.
     """
     repo = hg.repository(ui, repopath)
     if not repo.capable('getbundle'):
         raise util.Abort("getbundle() not supported by target repository")
     args = {}
     if common:
         args['common'] = [bin(s) for s in common]
     if head:
         args['heads'] = [bin(s) for s in head]
     bundle = repo.getbundle('debug', **args)
 
     bundletype = opts.get('type', 'bzip2').lower()
     btypes = {'none': 'HG10UN', 'bzip2': 'HG10BZ', 'gzip': 'HG10GZ'}
     bundletype = btypes.get(bundletype)
     if bundletype not in changegroup.bundletypes:
         raise util.Abort(_('unknown bundle type specified with --type'))
     changegroup.writebundle(bundle, bundlepath, bundletype)
 
 def debugpushkey(ui, repopath, namespace, *keyinfo):
     '''access the pushkey key/value protocol
 
     With two args, list the keys in the given namespace.
 
     With five args, set a key to new if it currently is set to old.
     Reports success or failure.
     '''
 
     target = hg.repository(ui, repopath)
     if keyinfo:
         key, old, new = keyinfo
         r = target.pushkey(namespace, key, old, new)
         ui.status(str(r) + '\n')
         return not r
     else:
         for k, v in target.listkeys(namespace).iteritems():
             ui.write("%s\t%s\n" % (k.encode('string-escape'),
                                    v.encode('string-escape')))
 
 def debugrevspec(ui, repo, expr):
     '''parse and apply a revision specification'''
     if ui.verbose:
         tree = revset.parse(expr)[0]
         ui.note(tree, "\n")
     func = revset.match(expr)
     for c in func(repo, range(len(repo))):
         ui.write("%s\n" % c)
 
 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.
 
     Returns 0 on success.
     """
 
     r1 = cmdutil.revsingle(repo, rev1).node()
     r2 = cmdutil.revsingle(repo, rev2, 'null').node()
 
     wlock = repo.wlock()
     try:
         repo.dirstate.setparents(r1, r2)
     finally:
         wlock.release()
 
 def debugstate(ui, repo, nodates=None, datesort=None):
     """show the contents of the current dirstate"""
     timestr = ""
     showdate = not nodates
     if datesort:
         keyfunc = lambda x: (x[1][3], x[0]) # sort by mtime, then by filename
     else:
         keyfunc = None # sort by filename
     for file_, ent in sorted(repo.dirstate._map.iteritems(), key=keyfunc):
         if showdate:
             if ent[3] == -1:
                 # Pad or slice to locale representation
                 locale_len = len(time.strftime("%Y-%m-%d %H:%M:%S ",
                                                time.localtime(0)))
                 timestr = 'unset'
                 timestr = (timestr[:locale_len] +
                            ' ' * (locale_len - len(timestr)))
             else:
                 timestr = time.strftime("%Y-%m-%d %H:%M:%S ",
                                         time.localtime(ent[3]))
         if ent[1] & 020000:
             mode = 'lnk'
         else:
             mode = '%3o' % (ent[1] & 0777)
         ui.write("%c %s %10d %s%s\n" % (ent[0], mode, ent[2], timestr, file_))
     for f in repo.dirstate.copies():
         ui.write(_("copy: %s -> %s\n") % (repo.dirstate.copied(f), f))
 
 def debugsub(ui, repo, rev=None):
     ctx = cmdutil.revsingle(repo, rev, None)
     for k, v in sorted(ctx.substate.items()):
         ui.write('path %s\n' % k)
         ui.write(' source   %s\n' % v[0])
         ui.write(' revision %s\n' % v[1])
 
 def debugdag(ui, repo, file_=None, *revs, **opts):
     """format the changelog or an index DAG as a concise textual description
 
     If you pass a revlog index, the revlog's DAG is emitted. If you list
     revision numbers, they get labelled in the output as rN.
 
     Otherwise, the changelog DAG of the current repo is emitted.
     """
     spaces = opts.get('spaces')
     dots = opts.get('dots')
     if file_:
         rlog = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), file_)
         revs = set((int(r) for r in revs))
         def events():
             for r in rlog:
                 yield 'n', (r, list(set(p for p in rlog.parentrevs(r) if p != -1)))
                 if r in revs:
                     yield 'l', (r, "r%i" % r)
     elif repo:
         cl = repo.changelog
         tags = opts.get('tags')
         branches = opts.get('branches')
         if tags:
             labels = {}
             for l, n in repo.tags().items():
                 labels.setdefault(cl.rev(n), []).append(l)
         def events():
             b = "default"
             for r in cl:
                 if branches:
                     newb = cl.read(cl.node(r))[5]['branch']
                     if newb != b:
                         yield 'a', newb
                         b = newb
                 yield 'n', (r, list(set(p for p in cl.parentrevs(r) if p != -1)))
                 if tags:
                     ls = labels.get(r)
                     if ls:
                         for l in ls:
                             yield 'l', (r, l)
     else:
         raise util.Abort(_('need repo for changelog dag'))
 
     for line in dagparser.dagtextlines(events(),
                                        addspaces=spaces,
                                        wraplabels=True,
                                        wrapannotations=True,
                                        wrapnonlinear=dots,
                                        usedots=dots,
                                        maxlinewidth=70):
         ui.write(line)
         ui.write("\n")
 
 def debugdata(ui, repo, file_, rev):
     """dump the contents of a data file revision"""
     r = None
     if repo:
         filelog = repo.file(file_)
         if len(filelog):
             r = filelog
     if not r:
         r = revlog.revlog(scmutil.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 debugignore(ui, repo, *values, **opts):
     """display the combined ignore pattern"""
     ignore = repo.dirstate._ignore
     if hasattr(ignore, 'includepat'):
         ui.write("%s\n" % ignore.includepat)
     else:
         raise util.Abort(_("no ignore patterns found"))
 
 def debugindex(ui, repo, file_, **opts):
     """dump the contents of an index file"""
     r = None
     if repo:
         filelog = repo.file(file_)
         if len(filelog):
             r = filelog
 
     format = opts.get('format', 0)
     if format not in (0, 1):
         raise util.Abort(_("unknown format %d") % format)
 
     if not r:
         r = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), file_)
 
     if format == 0:
         ui.write("   rev    offset  length   base linkrev"
                  " nodeid       p1           p2\n")
     elif format == 1:
         ui.write("   rev flag   offset   length"
                  "     size   base   link     p1     p2       nodeid\n")
 
     for i in r:
         node = r.node(i)
         if format == 0:
             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(i),
                     short(node), short(pp[0]), short(pp[1])))
         elif format == 1:
             pr = r.parentrevs(i)
             ui.write("% 6d %04x % 8d % 8d % 8d % 6d % 6d % 6d % 6d %s\n" % (
                     i, r.flags(i), r.start(i), r.length(i), r.rawsize(i),
                     r.base(i), r.linkrev(i), pr[0], pr[1], short(node)))
 
 def debugindexdot(ui, repo, file_):
     """dump an index DAG as a graphviz dot file"""
     r = None
     if repo:
         filelog = repo.file(file_)
         if len(filelog):
             r = filelog
     if not r:
         r = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), file_)
     ui.write("digraph G {\n")
     for i in r:
         node = r.node(i)
         pp = r.parents(node)
         ui.write("\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write("}\n")
 
 def debuginstall(ui):
     '''test Mercurial installation
 
     Returns 0 on success.
     '''
 
     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") % encoding.encoding)
     try:
         encoding.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 installed modules (%s)...\n")
               % os.path.dirname(__file__))
     try:
         import bdiff, mpatch, base85, osutil
     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
         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
 
     # 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 configuration"
                        " file)\n"))
         else:
             ui.write(_(" Can't find editor '%s' in PATH\n") % editor)
             ui.write(_(" (specify a commit editor in your configuration"
                        " file)\n"))
             problems += 1
 
     # check username
     ui.status(_("Checking username...\n"))
     try:
         ui.username()
     except util.Abort, e:
         ui.write(" %s\n" % e)
         ui.write(_(" (specify a username in your configuration file)\n"))
         problems += 1
 
     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 = cmdutil.revsingle(repo, opts.get('rev'))
     m = cmdutil.match(repo, (file1,) + pats, opts)
     for abs in ctx.walk(m):
         fctx = ctx[abs]
         o = fctx.filelog().renamed(fctx.filenode())
         rel = m.rel(abs)
         if o:
             ui.write(_("%s renamed from %s:%s\n") % (rel, o[0], hex(o[1])))
         else:
             ui.write(_("%s not renamed\n") % rel)
 
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     m = cmdutil.match(repo, pats, opts)
     items = list(repo.walk(m))
     if not items:
         return
     fmt = 'f  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for abs in items]),
         max([len(m.rel(abs)) for abs in items]))
     for abs in items:
         line = fmt % (abs, m.rel(abs), m.exact(abs) and 'exact' or '')
         ui.write("%s\n" % line.rstrip())
 
 def debugwireargs(ui, repopath, *vals, **opts):
     repo = hg.repository(hg.remoteui(ui, opts), repopath)
     for opt in remoteopts:
         del opts[opt[1]]
     args = {}
     for k, v in opts.iteritems():
         if v:
             args[k] = v
     # run twice to check that we don't mess up the stream for the next command
     res1 = repo.debugwireargs(*vals, **args)
     res2 = repo.debugwireargs(*vals, **args)
     ui.write("%s\n" % res1)
     if res1 != res2:
         ui.warn("%s\n" % res2)
 
 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.
 
     Alternatively you can specify -c/--change with a revision to see
     the changes in that changeset relative to its first parent.
 
     Without the -a/--text option, diff will avoid generating diffs of
     files it detects as binary. With -a, diff will generate a diff
     anyway, probably with undesirable results.
 
     Use the -g/--git option to generate diffs in the git extended diff
     format. For more information, read :hg:`help diffs`.
 
     Returns 0 on success.
     """
 
     revs = opts.get('rev')
     change = opts.get('change')
     stat = opts.get('stat')
     reverse = opts.get('reverse')
 
     if revs and change:
         msg = _('cannot specify --rev and --change at the same time')
         raise util.Abort(msg)
     elif change:
         node2 = cmdutil.revsingle(repo, change, None).node()
         node1 = repo[node2].p1().node()
     else:
         node1, node2 = cmdutil.revpair(repo, revs)
 
     if reverse:
         node1, node2 = node2, node1
 
     diffopts = patch.diffopts(ui, opts)
     m = cmdutil.match(repo, pats, opts)
     cmdutil.diffordiffstat(ui, repo, diffopts, node1, node2, m, stat=stat,
                            listsubrepos=opts.get('subrepos'))
 
 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, date,
     branch name (if non-default), 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 hexadecimal digits)
     :``%N``: number of patches being generated
     :``%R``: changeset revision number
     :``%b``: basename of the exporting repository
     :``%h``: short-form changeset hash (12 hexadecimal digits)
     :``%n``: zero-padded sequence number, starting at 1
     :``%r``: zero-padded changeset revision number
 
     Without the -a/--text option, export will avoid generating diffs
     of files it detects as binary. With -a, export will generate a
     diff anyway, probably with undesirable results.
 
     Use the -g/--git option to generate diffs in the git extended diff
     format. See :hg:`help diffs` for more information.
 
     With the --switch-parent option, the diff will be against the
     second parent. It can be useful to review a merge.
 
     Returns 0 on success.
     """
     changesets += tuple(opts.get('rev', []))
     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'))
     cmdutil.export(repo, revs, template=opts.get('output'),
                  switch_parent=opts.get('switch_parent'),
                  opts=patch.diffopts(ui, opts))
 
 def forget(ui, repo, *pats, **opts):
     """forget the specified files on the next commit
 
     Mark the specified files so they will no longer be tracked
     after the next commit.
 
     This only removes files from the current branch, not from the
     entire project history, and it does not delete them from the
     working directory.
 
     To undo a forget before the next commit, see :hg:`add`.
 
     Returns 0 on success.
     """
 
     if not pats:
         raise util.Abort(_('no files specified'))
 
     m = cmdutil.match(repo, pats, opts)
     s = repo.status(match=m, clean=True)
     forget = sorted(s[0] + s[1] + s[3] + s[6])
     errs = 0
 
     for f in m.files():
         if f not in repo.dirstate and not os.path.isdir(m.rel(f)):
             ui.warn(_('not removing %s: file is already untracked\n')
                     % m.rel(f))
             errs = 1
 
     for f in forget:
         if ui.verbose or not m.exact(f):
             ui.status(_('removing %s\n') % m.rel(f))
 
     repo[None].remove(forget, unlink=False)
     return errs
 
 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.
 
     Returns 0 if a match is found, 1 otherwise.
     """
     reflags = 0
     if opts.get('ignore_case'):
         reflags |= re.I
     try:
         regexp = re.compile(pattern, reflags)
     except re.error, inst:
         ui.warn(_("grep: invalid match pattern: %s\n") % inst)
         return 1
     sep, eol = ':', '\n'
     if opts.get('print0'):
         sep = eol = '\0'
 
     getfile = util.lrucachefunc(repo.file)
 
     def matchlines(body):
         begin = 0
         linenum = 0
         while 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
             begin = body.find('\n', mend) + 1 or len(body)
             lend = begin - 1
             yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
 
     class linestate(object):
         def __init__(self, line, linenum, colstart, colend):
             self.line = line
             self.linenum = linenum
             self.colstart = colstart
             self.colend = colend
 
         def __hash__(self):
             return hash((self.linenum, self.line))
 
         def __eq__(self, other):
             return self.line == other.line
 
     matches = {}
     copies = {}
     def grepbody(fn, rev, body):
         matches[rev].setdefault(fn, [])
         m = matches[rev][fn]
         for lnum, cstart, cend, line in matchlines(body):
             s = linestate(line, lnum, cstart, cend)
             m.append(s)
 
     def difflinestates(a, b):
         sm = difflib.SequenceMatcher(None, a, b)
         for tag, alo, ahi, blo, bhi in sm.get_opcodes():
             if tag == 'insert':
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
             elif tag == 'delete':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
             elif tag == 'replace':
                 for i in xrange(alo, ahi):
                     yield ('-', a[i])
                 for i in xrange(blo, bhi):
                     yield ('+', b[i])
 
     def display(fn, ctx, pstates, states):
         rev = ctx.rev()
         datefunc = ui.quiet and util.shortdate or util.datestr
         found = False
         filerevmatches = {}
         def binary():
             flog = getfile(fn)
             return util.binary(flog.read(ctx.filenode(fn)))
 
         if opts.get('all'):
             iter = difflinestates(pstates, states)
         else:
             iter = [('', l) for l in states]
         for change, l in iter:
             cols = [fn, str(rev)]
             before, match, after = None, None, None
             if opts.get('line_number'):
                 cols.append(str(l.linenum))
             if opts.get('all'):
                 cols.append(change)
             if opts.get('user'):
                 cols.append(ui.shortuser(ctx.user()))
             if opts.get('date'):
                 cols.append(datefunc(ctx.date()))
             if opts.get('files_with_matches'):
                 c = (fn, rev)
                 if c in filerevmatches:
                     continue
                 filerevmatches[c] = 1
             else:
                 before = l.line[:l.colstart]
                 match = l.line[l.colstart:l.colend]
                 after = l.line[l.colend:]
             ui.write(sep.join(cols))
             if before is not None:
                 if not opts.get('text') and binary():
                     ui.write(sep + " Binary file matches")
                 else:
                     ui.write(sep + before)
                     ui.write(match, label='grep.match')
                     ui.write(after)
             ui.write(eol)
             found = True
         return found
 
     skip = {}
     revfiles = {}
     matchfn = cmdutil.match(repo, pats, opts)
     found = False
     follow = opts.get('follow')
 
     def prep(ctx, fns):
         rev = ctx.rev()
         pctx = ctx.p1()
         parent = pctx.rev()
         matches.setdefault(rev, {})
         matches.setdefault(parent, {})
         files = revfiles.setdefault(rev, [])
         for fn in fns:
             flog = getfile(fn)
             try:
                 fnode = ctx.filenode(fn)
             except error.LookupError:
                 continue
 
             copied = flog.renamed(fnode)
             copy = follow and copied and copied[0]
             if copy:
                 copies.setdefault(rev, {})[fn] = copy
             if fn in skip:
                 if copy:
                     skip[copy] = True
                 continue
             files.append(fn)
 
             if fn not in matches[rev]:
                 grepbody(fn, rev, flog.read(fnode))
 
             pfn = copy or fn
             if pfn not in matches[parent]:
                 try:
                     fnode = pctx.filenode(pfn)
                     grepbody(pfn, parent, flog.read(fnode))
                 except error.LookupError:
                     pass
 
     for ctx in cmdutil.walkchangerevs(repo, matchfn, opts, prep):
         rev = ctx.rev()
         parent = ctx.p1().rev()
         for fn in sorted(revfiles.get(rev, [])):
             states = matches[rev][fn]
             copy = copies.get(rev, {}).get(fn)
             if fn in skip:
                 if copy:
                     skip[copy] = True
                 continue
             pstates = matches.get(parent, {}).get(copy or fn, [])
             if pstates or states:
                 r = display(fn, ctx, pstates, states)
                 found = found or r
                 if r and not opts.get('all'):
                     skip[fn] = True
                     if copy:
                         skip[copy] = True
         del matches[rev]
         del revfiles[rev]
 
     return not found
 
 def heads(ui, repo, *branchrevs, **opts):
     """show current repository heads or show branch heads
 
     With no arguments, show all repository branch heads.
 
     Repository "heads" are changesets with no 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
     no child changeset on the same branch.
 
     If one or more REVs are given, only branch heads on the branches
     associated with the specified changesets are shown.
 
     If -c/--closed is specified, also show branch heads marked closed
     (see :hg:`commit --close-branch`).
 
     If STARTREV is specified, only those heads that are descendants of
     STARTREV will be displayed.
 
     If -t/--topo is specified, named branch mechanics will be ignored and only
     changesets without children will be shown.
 
     Returns 0 if matching heads are found, 1 if not.
     """
 
     start = None
     if 'rev' in opts:
         start = cmdutil.revsingle(repo, opts['rev'], None).node()
 
     if opts.get('topo'):
         heads = [repo[h] for h in repo.heads(start)]
     else:
         heads = []
         for b, ls in repo.branchmap().iteritems():
             if start is None:
                 heads += [repo[h] for h in ls]
                 continue
             startrev = repo.changelog.rev(start)
             descendants = set(repo.changelog.descendants(startrev))
             descendants.add(startrev)
             rev = repo.changelog.rev
             heads += [repo[h] for h in ls if rev(h) in descendants]
 
     if branchrevs:
         branches = set(repo[br].branch() for br in branchrevs)
         heads = [h for h in heads if h.branch() in branches]
 
     if not opts.get('closed'):
         heads = [h for h in heads if not h.extra().get('close')]
 
     if opts.get('active') and branchrevs:
         dagheads = repo.heads(start)
         heads = [h for h in heads if h.node() in dagheads]
 
     if branchrevs:
         haveheads = set(h.branch() for h in heads)
         if branches - haveheads:
             headless = ', '.join(b for b in branches - haveheads)
             msg = _('no open branch heads found on branches %s')
             if opts.get('rev'):
                 msg += _(' (started at %s)' % opts['rev'])
             ui.warn((msg + '\n') % headless)
 
     if not heads:
         return 1
 
     heads = sorted(heads, key=lambda x: -x.rev())
     displayer = cmdutil.show_changeset(ui, repo, opts)
     for ctx in heads:
         displayer.show(ctx)
     displayer.close()
 
 def help_(ui, name=None, with_version=False, unknowncmd=False, full=True):
     """show help for a given topic or a help overview
 
     With no arguments, print a list of commands with short help messages.
 
     Given a topic, extension, or command name, print help for that
     topic.
 
     Returns 0 if successful.
     """
     option_lists = []
     textwidth = min(ui.termwidth(), 80) - 2
 
     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 name and not full:
                 msg = _('use "hg help %s" to show the full help text' % name)
             elif aliases:
                 msg = _('use "hg -v help%s" to show builtin aliases and '
                         'global options') % (name and " " + name or "")
             else:
                 msg = _('use "hg -v help %s" to show global options') % name
             option_lists.append((msg, ()))
 
     def helpcmd(name):
         if with_version:
             version_(ui)
             ui.write('\n')
 
         try:
             aliases, entry = cmdutil.findcmd(name, table, strict=unknowncmd)
         except error.AmbiguousCommand, inst:
             # py3k fix: except vars can't be used outside the scope of the
             # except block, nor can be used inside a lambda. python issue4617
             prefix = inst.args[0]
             select = lambda c: c.lstrip('^').startswith(prefix)
             helplist(_('list of commands:\n\n'), select)
             return
 
         # check if it's an invalid alias and display its error if it is
         if getattr(entry[0], 'badalias', False):
             if not unknowncmd:
                 entry[0](ui)
             return
 
         # synopsis
         if len(entry) > 2:
             if entry[2].startswith('hg'):
                 ui.write("%s\n" % entry[2])
             else:
                 ui.write('hg %s %s\n' % (aliases[0], entry[2]))
         else:
             ui.write('hg %s\n' % aliases[0])
 
         # aliases
         if full and not ui.quiet and len(aliases) > 1:
             ui.write(_("\naliases: %s\n") % ', '.join(aliases[1:]))
 
         # description
         doc = gettext(entry[0].__doc__)
         if not doc:
             doc = _("(no help text available)")
         if hasattr(entry[0], 'definition'):  # aliased command
             if entry[0].definition.startswith('!'):  # shell alias
                 doc = _('shell alias for::\n\n    %s') % entry[0].definition[1:]
             else:
                 doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
         if ui.quiet or not full:
             doc = doc.splitlines()[0]
         keep = ui.verbose and ['verbose'] or []
         formatted, pruned = minirst.format(doc, textwidth, keep=keep)
         ui.write("\n%s\n" % formatted)
         if pruned:
             ui.write(_('\nuse "hg -v help %s" to show verbose help\n') % name)
 
         if not ui.quiet:
             # options
             if entry[1]:
                 option_lists.append((_("options:\n"), entry[1]))
 
             addglobalopts(False)
 
     def helplist(header, select=None):
         h = {}
         cmds = {}
         for c, e in table.iteritems():
             f = c.split("|", 1)[0]
             if select and not select(f):
                 continue
             if (not select and name != 'shortlist' and
                 e[0].__module__ != __name__):
                 continue
             if name == "shortlist" and not f.startswith("^"):
                 continue
             f = f.lstrip("^")
             if not ui.debugflag and f.startswith("debug"):
                 continue
             doc = e[0].__doc__
             if doc and 'DEPRECATED' in doc and not ui.verbose:
                 continue
             doc = gettext(doc)
             if not doc:
                 doc = _("(no help text available)")
             h[f] = doc.splitlines()[0].rstrip()
             cmds[f] = c.lstrip("^")
 
         if not h:
             ui.status(_('no commands defined\n'))
             return
 
         ui.status(header)
         fns = sorted(h)
         m = max(map(len, fns))
         for f in fns:
             if ui.verbose:
                 commands = cmds[f].replace("|",", ")
                 ui.write(" %s:\n      %s\n"%(commands, h[f]))
             else:
                 ui.write('%s\n' % (util.wrap(h[f], textwidth,
                                              initindent=' %-*s   ' % (m, f),
                                              hangindent=' ' * (m + 4))))
 
         if not ui.quiet:
             addglobalopts(True)
 
     def helptopic(name):
         for names, header, doc in help.helptable:
             if name in names:
                 break
         else:
             raise error.UnknownCommand(name)
 
         # description
         if not doc:
             doc = _("(no help text available)")
         if hasattr(doc, '__call__'):
             doc = doc()
 
         ui.write("%s\n\n" % header)
         ui.write("%s\n" % minirst.format(doc, textwidth, indent=4))
 
     def helpext(name):
         try:
             mod = extensions.find(name)
             doc = gettext(mod.__doc__) or _('no help text available')
         except KeyError:
             mod = None
             doc = extensions.disabledext(name)
             if not doc:
                 raise error.UnknownCommand(name)
 
         if '\n' not in doc:
             head, tail = doc, ""
         else:
             head, tail = doc.split('\n', 1)
         ui.write(_('%s extension - %s\n\n') % (name.split('.')[-1], head))
         if tail:
             ui.write(minirst.format(tail, textwidth))
             ui.status('\n\n')
 
         if mod:
             try:
                 ct = mod.cmdtable
             except AttributeError:
                 ct = {}
             modcmds = set([c.split('|', 1)[0] for c in ct])
             helplist(_('list of commands:\n\n'), modcmds.__contains__)
         else:
             ui.write(_('use "hg help extensions" for information on enabling '
                        'extensions\n'))
 
     def helpextcmd(name):
         cmd, ext, mod = extensions.disabledcmd(ui, name, ui.config('ui', 'strict'))
         doc = gettext(mod.__doc__).splitlines()[0]
 
         msg = help.listexts(_("'%s' is provided by the following "
                               "extension:") % cmd, {ext: doc}, len(ext),
                             indent=4)
         ui.write(minirst.format(msg, textwidth))
         ui.write('\n\n')
         ui.write(_('use "hg help extensions" for information on enabling '
                    'extensions\n'))
 
     help.addtopichook('revsets', revset.makedoc)
     help.addtopichook('templates', templatekw.makedoc)
     help.addtopichook('templates', templatefilters.makedoc)
 
     if name and name != 'shortlist':
         i = None
         if unknowncmd:
             queries = (helpextcmd,)
         else:
             queries = (helptopic, helpcmd, helpext, helpextcmd)
         for f in queries:
             try:
                 f(name)
                 i = None
                 break
             except error.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)
         if name != 'shortlist':
             exts, maxlength = extensions.enabled()
             text = help.listexts(_('enabled extensions:'), exts, maxlength)
             if text:
                 ui.write("\n%s\n" % minirst.format(text, textwidth))
 
     # list all option lists
     opt_output = []
     multioccur = False
     for title, options in option_lists:
         opt_output.append(("\n%s" % title, None))
         for option in options:
             if len(option) == 5:
                 shortopt, longopt, default, desc, optlabel = option
             else:
                 shortopt, longopt, default, desc = option
                 optlabel = _("VALUE") # default label
 
             if _("DEPRECATED") in desc and not ui.verbose:
                 continue
             if isinstance(default, list):
                 numqualifier = " %s [+]" % optlabel
                 multioccur = True
             elif (default is not None) and not isinstance(default, bool):
                 numqualifier = " %s" % optlabel
             else:
                 numqualifier = ""
             opt_output.append(("%2s%s" %
                                (shortopt and "-%s" % shortopt,
                                 longopt and " --%s%s" %
                                 (longopt, numqualifier)),
                                "%s%s" % (desc,
                                          default
                                          and _(" (default: %s)") % default
                                          or "")))
     if multioccur:
         msg = _("\n[+] marked option can be specified multiple times")
         if ui.verbose and name != 'shortlist':
             opt_output.append((msg, None))
         else:
             opt_output.insert(-1, (msg, None))
 
     if not name:
         ui.write(_("\nadditional help topics:\n\n"))
         topics = []
         for names, header, doc in help.helptable:
             topics.append((sorted(names, key=len, reverse=True)[0], header))
         topics_len = max([len(s[0]) for s in topics])
         for t, desc in topics:
             ui.write(" %-*s  %s\n" % (topics_len, t, desc))
 
     if opt_output:
         colwidth = encoding.colwidth
         # normalize: (opt or message, desc or None, width of opt)
         entries = [desc and (opt, desc, colwidth(opt)) or (opt, None, 0)
                    for opt, desc in opt_output]
         hanging = max([e[2] for e in entries])
         for opt, desc, width in entries:
             if desc:
                 initindent = ' %s%s  ' % (opt, ' ' * (hanging - width))
                 hangindent = ' ' * (hanging + 3)
                 ui.write('%s\n' % (util.wrap(desc, textwidth,
                                              initindent=initindent,
                                              hangindent=hangindent)))
             else:
                 ui.write("%s\n" % opt)
 
 def identify(ui, repo, source=None, rev=None,
              num=None, id=None, branch=None, tags=None, bookmarks=None):
     """identify the working copy or specified revision
 
     Print a summary identifying the repository state at REV using one or
     two parent hash identifiers, followed by a "+" if the working
     directory has uncommitted changes, the branch name (if not default),
     a list of tags, and a list of bookmarks.
 
     When REV is not given, print a summary of the current state of the
     repository.
 
     Specifying a path to a repository root or Mercurial bundle will
     cause lookup to operate on that repository/bundle.
 
     Returns 0 if successful.
     """
 
     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 or bookmarks)
     output = []
     revs = []
 
     if source:
         source, branches = hg.parseurl(ui.expandpath(source))
         repo = hg.repository(ui, source)
         revs, checkout = hg.addbranchrevs(repo, repo, branches, None)
 
     if not repo.local():
         if num or branch or tags:
             raise util.Abort(
                 _("can't query remote revision number, branch, or tags"))
         if not rev and revs:
             rev = revs[0]
         if not rev:
             rev = "tip"
 
         remoterev = repo.lookup(rev)
         if default or id:
             output = [hexfunc(remoterev)]
 
         def getbms():
             bms = []
 
             if 'bookmarks' in repo.listkeys('namespaces'):
                 hexremoterev = hex(remoterev)
                 bms = [bm for bm, bmr in repo.listkeys('bookmarks').iteritems()
                        if bmr == hexremoterev]
 
             return bms
 
         if bookmarks:
             output.extend(getbms())
         elif default and not ui.quiet:
             # multiple bookmarks for a single parent separated by '/'
             bm = '/'.join(getbms())
             if bm:
                 output.append(bm)
     else:
         if not rev:
             ctx = repo[None]
             parents = ctx.parents()
             changed = ""
             if default or id or num:
                 changed = util.any(repo.status()) and "+" or ""
             if default or id:
                 output = ["%s%s" %
                   ('+'.join([hexfunc(p.node()) for p in parents]), changed)]
             if num:
                 output.append("%s%s" %
                   ('+'.join([str(p.rev()) for p in parents]), changed))
         else:
             ctx = cmdutil.revsingle(repo, rev)
             if default or id:
                 output = [hexfunc(ctx.node())]
             if num:
                 output.append(str(ctx.rev()))
 
         if default and not ui.quiet:
             b = ctx.branch()
             if b != 'default':
                 output.append("(%s)" % b)
 
             # multiple tags for a single parent separated by '/'
             t = '/'.join(ctx.tags())
             if t:
                 output.append(t)
 
             # multiple bookmarks for a single parent separated by '/'
             bm = '/'.join(ctx.bookmarks())
             if bm:
                 output.append(bm)
         else:
             if branch:
                 output.append(ctx.branch())
 
             if tags:
                 output.extend(ctx.tags())
 
             if bookmarks:
                 output.extend(ctx.bookmarks())
 
     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 (unless
     --no-commit is specified).
 
     If there are outstanding changes in the working directory, import
     will abort unless given the -f/--force flag.
 
     You can import a patch straight from a mail message. Even patches
     as attachments work (to use the body part, it must have type
     text/plain or text/x-patch). From and Subject headers of email
     message are used as default committer and commit message. All
     text/plain body parts before first diff are added to commit
     message.
 
     If the imported patch was generated by :hg:`export`, user and
     description from patch override values from message headers and
     body. Values given on command line with -m/--message and -u/--user
     override these.
 
     If --exact is specified, import will set the working directory to
     the parent of each patch before applying it, and will abort if the
     resulting changeset has a different ID than the one recorded in
     the patch. This may happen due to character set problems or other
     deficiencies in the text patch format.
 
     With -s/--similarity, hg will attempt to discover renames and
     copies in the patch in the same way as 'addremove'.
 
     To read a patch from standard input, use "-" as the patch name. If
     a URL is specified, the patch will be downloaded from it.
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success.
     """
     patches = (patch1,) + patches
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     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'))
 
     if opts.get('exact') or not opts.get('force'):
         cmdutil.bail_if_changed(repo)
 
     d = opts["base"]
     strip = opts["strip"]
     wlock = lock = None
     msgs = []
 
     def tryone(ui, hunk):
         tmpname, message, user, date, branch, nodeid, p1, p2 = \
             patch.extract(ui, hunk)
 
         if not tmpname:
             return None
         commitid = _('to working directory')
 
         try:
             cmdline_message = cmdutil.logmessage(opts)
             if cmdline_message:
                 # pickup the cmdline msg
                 message = cmdline_message
             elif message:
                 # pickup the patch msg
                 message = message.strip()
             else:
                 # launch the editor
                 message = None
             ui.debug('message:\n%s\n' % message)
 
             wp = repo.parents()
             if opts.get('exact'):
                 if not nodeid or not p1:
                     raise util.Abort(_('not a Mercurial patch'))
                 p1 = repo.lookup(p1)
                 p2 = repo.lookup(p2 or hex(nullid))
 
                 if p1 != wp[0].node():
                     hg.clean(repo, p1)
                 repo.dirstate.setparents(p1, p2)
             elif p2:
                 try:
                     p1 = repo.lookup(p1)
                     p2 = repo.lookup(p2)
                     if p1 == wp[0].node():
                         repo.dirstate.setparents(p1, p2)
                 except error.RepoError:
                     pass
             if opts.get('exact') or opts.get('import_branch'):
                 repo.dirstate.setbranch(branch or 'default')
 
             files = {}
             try:
                 patch.patch(tmpname, ui, strip=strip, cwd=repo.root,
                             files=files, eolmode=None)
             finally:
                 files = cmdutil.updatedir(ui, repo, files,
                                           similarity=sim / 100.0)
             if opts.get('no_commit'):
                 if message:
                     msgs.append(message)
             else:
                 if opts.get('exact'):
                     m = None
                 else:
                     m = cmdutil.matchfiles(repo, files or [])
                 n = repo.commit(message, opts.get('user') or user,
                                 opts.get('date') or date, match=m,
                                 editor=cmdutil.commiteditor)
                 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()
                 if n:
                     commitid = short(n)
 
             return commitid
         finally:
             os.unlink(tmpname)
 
     try:
         wlock = repo.wlock()
         lock = repo.lock()
         lastcommit = None
         for p in patches:
             pf = os.path.join(d, p)
 
             if pf == '-':
                 ui.status(_("applying patch from stdin\n"))
                 pf = sys.stdin
             else:
                 ui.status(_("applying %s\n") % p)
                 pf = url.open(ui, pf)
 
             haspatch = False
             for hunk in patch.split(pf):
                 commitid = tryone(ui, hunk)
                 if commitid:
                     haspatch = True
                     if lastcommit:
                         ui.status(_('applied %s\n') % lastcommit)
                     lastcommit = commitid
 
             if not haspatch:
                 raise util.Abort(_('no diffs found'))
 
         if msgs:
             repo.opener('last-message.txt', 'wb').write('\n* * *\n'.join(msgs))
     finally:
         release(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 have been pulled
     if a pull at the time you issued this command.
 
     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.
 
     Returns 0 if there are incoming changes, 1 otherwise.
     """
     if opts.get('bundle') and opts.get('subrepos'):
         raise util.Abort(_('cannot combine --bundle and --subrepos'))
 
     if opts.get('bookmarks'):
         source, branches = hg.parseurl(ui.expandpath(source),
                                        opts.get('branch'))
         other = hg.repository(hg.remoteui(repo, opts), source)
         if 'bookmarks' not in other.listkeys('namespaces'):
             ui.warn(_("remote doesn't support bookmarks\n"))
             return 0
         ui.status(_('comparing with %s\n') % url.hidepassword(source))
         return bookmarks.diff(ui, repo, other)
 
     ret = hg.incoming(ui, repo, source, opts)
     return ret
 
 def init(ui, dest=".", **opts):
     """create a new repository in the given directory
 
     Initialize a new repository in the given directory. If the given
     directory does not exist, it will be created.
 
     If no directory is given, the current directory is used.
 
     It is possible to specify an ``ssh://`` URL as the destination.
     See :hg:`help urls` for more information.
 
     Returns 0 on success.
     """
     hg.repository(hg.remoteui(ui, opts), ui.expandpath(dest), create=1)
 
 def locate(ui, repo, *pats, **opts):
     """locate files matching specific patterns
 
     Print files under Mercurial control in the working directory whose
     names match the given patterns.
 
     By default, this command searches all directories in the working
     directory. To search just the current directory and its
     subdirectories, use "--include .".
 
     If no patterns are given to match, this command prints the names
     of all files under Mercurial control in the working directory.
 
     If you want to feed the output of this command into the "xargs"
     command, use the -0 option to both this command and "xargs". This
     will avoid the problem of "xargs" treating single filenames that
     contain whitespace as multiple filenames.
 
     Returns 0 if a match is found, 1 otherwise.
     """
     end = opts.get('print0') and '\0' or '\n'
     rev = cmdutil.revsingle(repo, opts.get('rev'), None).node()
 
     ret = 1
     m = cmdutil.match(repo, pats, opts, default='relglob')
     m.bad = lambda x, y: False
     for abs in repo[rev].walk(m):
         if not rev and abs not in repo.dirstate:
             continue
         if opts.get('fullpath'):
             ui.write(repo.wjoin(abs), end)
         else:
             ui.write(((pats and m.rel(abs)) or abs), end)
         ret = 0
 
     return ret
 
 def log(ui, repo, *pats, **opts):
     """show revision history of entire repository or files
 
     Print the revision history of the specified files or the entire
     project.
 
     File history is shown without following rename or copy history of
     files. Use -f/--follow with a filename to follow history across
     renames and copies. --follow without a filename 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. You can specify a revision set for
     log, see :hg:`help revsets` for more information.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     By default this command prints revision number and changeset id,
     tags, non-trivial parents, user, date and time, and a summary for
     each commit. When the -v/--verbose switch is used, the list of
     changed files and full commit message are shown.
 
     .. note::
        log -p/--patch may generate unexpected diff output for merge
        changesets, as it will only compare the merge changeset against
        its first parent. Also, only files different from BOTH parents
        will appear in files:.
 
     Returns 0 on success.
     """
 
     matchfn = cmdutil.match(repo, pats, opts)
     limit = cmdutil.loglimit(opts)
     count = 0
 
     endrev = None
     if opts.get('copies') and opts.get('rev'):
         endrev = max(cmdutil.revrange(repo, opts.get('rev'))) + 1
 
     df = False
     if opts["date"]:
         df = util.matchdate(opts["date"])
 
     branches = opts.get('branch', []) + opts.get('only_branch', [])
     opts['branch'] = [repo.lookupbranch(b) for b in branches]
 
     displayer = cmdutil.show_changeset(ui, repo, opts, True)
     def prep(ctx, fns):
         rev = ctx.rev()
         parents = [p for p in repo.changelog.parentrevs(rev)
                    if p != nullrev]
         if opts.get('no_merges') and len(parents) == 2:
             return
         if opts.get('only_merges') and len(parents) != 2:
             return
         if opts.get('branch') and ctx.branch() not in opts['branch']:
             return
         if df and not df(ctx.date()[0]):
             return
         if opts['user'] and not [k for k in opts['user']
                                  if k.lower() in ctx.user().lower()]:
             return
         if opts.get('keyword'):
             for k in [kw.lower() for kw in opts['keyword']]:
                 if (k in ctx.user().lower() or
                     k in ctx.description().lower() or
                     k in " ".join(ctx.files()).lower()):
                     break
             else:
                 return
 
         copies = None
         if opts.get('copies') and rev:
             copies = []
             getrenamed = templatekw.getrenamedfn(repo, endrev=endrev)
             for fn in ctx.files():
                 rename = getrenamed(fn, rev)
                 if rename:
                     copies.append((fn, rename[0]))
 
         revmatchfn = None
         if opts.get('patch') or opts.get('stat'):
             if opts.get('follow') or opts.get('follow_first'):
                 # note: this might be wrong when following through merges
                 revmatchfn = cmdutil.match(repo, fns, default='path')
             else:
                 revmatchfn = matchfn
 
         displayer.show(ctx, copies=copies, matchfn=revmatchfn)
 
     for ctx in cmdutil.walkchangerevs(repo, matchfn, opts, prep):
         if count == limit:
             break
         if displayer.flush(ctx.rev()):
             count += 1
     displayer.close()
 
 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 first parent of the working directory
     is used, or the null revision if no revision is checked out.
 
     With -v, print file permissions, symlink and executable bits.
     With --debug, print file revision hashes.
 
     Returns 0 on success.
     """
 
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if not node:
         node = rev
 
     decor = {'l':'644 @ ', 'x':'755 * ', '':'644   '}
     ctx = cmdutil.revsingle(repo, node)
     for f in ctx:
         if ui.debugflag:
             ui.write("%40s " % hex(ctx.manifest()[f]))
         if ui.verbose:
             ui.write(decor[ctx.flags(f)])
         ui.write("%s\n" % f)
 
 def merge(ui, repo, node=None, **opts):
     """merge working directory with another revision
 
     The current working directory is updated with all changes made in
     the requested revision since the last common predecessor revision.
 
     Files that changed between either parent are marked as changed for
     the next commit and a commit must be performed before any further
     updates to the repository are allowed. The next commit will have
     two parents.
 
     ``--tool`` can be used to specify the merge tool used for file
     merges. It overrides the HGMERGE environment variable and your
     configuration files. See :hg:`help merge-tools` for options.
 
     If no revision is specified, the working directory's parent is a
     head revision, and the current branch contains exactly one other
     head, the other head is merged with by default. Otherwise, an
     explicit revision with which to merge with must be provided.
 
     :hg:`resolve` must be used to resolve unresolved files.
 
     To undo an uncommitted merge, use :hg:`update --clean .` which
     will check out a clean copy of the original merge parent, losing
     all changes.
 
     Returns 0 on success, 1 if there are unresolved files.
     """
 
     if opts.get('rev') and node:
         raise util.Abort(_("please specify just one revision"))
     if not node:
         node = opts.get('rev')
 
     if not node:
         branch = repo[None].branch()
         bheads = repo.branchheads(branch)
         if len(bheads) > 2:
             raise util.Abort(_(
                 'branch \'%s\' has %d heads - '
                 'please merge with an explicit rev\n'
                 '(run \'hg heads .\' to see heads)')
                 % (branch, len(bheads)))
 
         parent = repo.dirstate.p1()
         if len(bheads) == 1:
             if len(repo.heads()) > 1:
                 raise util.Abort(_(
                     'branch \'%s\' has one head - '
                     'please merge with an explicit rev\n'
                     '(run \'hg heads\' to see all heads)')
                     % branch)
             msg = _('there is nothing to merge')
             if parent != repo.lookup(repo[None].branch()):
                 msg = _('%s - use "hg update" instead') % msg
             raise util.Abort(msg)
 
         if parent not in bheads:
             raise util.Abort(_('working dir not at a head rev - '
                                'use "hg update" or merge with an explicit rev'))
         node = parent == bheads[0] and bheads[-1] or bheads[0]
     else:
         node = cmdutil.revsingle(repo, node).node()
 
     if opts.get('preview'):
         # find nodes that are ancestors of p2 but not of p1
         p1 = repo.lookup('.')
         p2 = repo.lookup(node)
         nodes = repo.changelog.findmissing(common=[p1], heads=[p2])
 
         displayer = cmdutil.show_changeset(ui, repo, opts)
         for node in nodes:
             displayer.show(repo[node])
         displayer.close()
         return 0
 
     try:
         # ui.forcemerge is an internal variable, do not document
         ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
         return hg.merge(repo, node, force=opts.get('force'))
     finally:
         ui.setconfig('ui', 'forcemerge', '')
 
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in the destination
 
     Show changesets not found in the specified destination repository
     or the default push location. These are the changesets that would
     be pushed if a push was requested.
 
     See pull for details of valid destination formats.
 
     Returns 0 if there are outgoing changes, 1 otherwise.
     """
 
     if opts.get('bookmarks'):
         dest = ui.expandpath(dest or 'default-push', dest or 'default')
         dest, branches = hg.parseurl(dest, opts.get('branch'))
         other = hg.repository(hg.remoteui(repo, opts), dest)
         if 'bookmarks' not in other.listkeys('namespaces'):
             ui.warn(_("remote doesn't support bookmarks\n"))
             return 0
         ui.status(_('comparing with %s\n') % url.hidepassword(dest))
         return bookmarks.diff(ui, other, repo)
 
     ret = hg.outgoing(ui, repo, dest, opts)
     return ret
 
 def parents(ui, repo, file_=None, **opts):
     """show the parents of the working directory or revision
 
     Print the working directory's parent revisions. If a revision is
     given via -r/--rev, the parent of that revision will be printed.
     If a file argument is given, the revision in which the file was
     last changed (before the working directory revision or the
     argument to --rev if given) is printed.
 
     Returns 0 on success.
     """
 
     ctx = cmdutil.revsingle(repo, opts.get('rev'), None)
 
     if file_:
         m = cmdutil.match(repo, (file_,), opts)
         if m.anypats() or len(m.files()) != 1:
             raise util.Abort(_('can only specify an explicit filename'))
         file_ = m.files()[0]
         filenodes = []
         for cp in ctx.parents():
             if not cp:
                 continue
             try:
                 filenodes.append(cp.filenode(file_))
             except error.LookupError:
                 pass
         if not filenodes:
             raise util.Abort(_("'%s' not found in manifest!") % file_)
         fl = repo.file(file_)
         p = [repo.lookup(fl.linkrev(fl.rev(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(repo[n])
     displayer.close()
 
 def paths(ui, repo, search=None):
     """show aliases for remote repositories
 
     Show definition of symbolic path name NAME. If no name is given,
     show definition of all available names.
 
     Path names are defined in the [paths] section of your
     configuration file and in ``/etc/mercurial/hgrc``. If run inside a
     repository, ``.hg/hgrc`` is used, too.
 
     The path names ``default`` and ``default-push`` have a special
     meaning.  When performing a push or pull operation, they are used
     as fallbacks if no location is specified on the command-line.
     When ``default-push`` is set, it will be used for push and
     ``default`` will be used for pull; otherwise ``default`` is used
     as the fallback for both.  When cloning a repository, the clone
     source is written as ``default`` in ``.hg/hgrc``.  Note that
     ``default`` and ``default-push`` apply to all inbound (e.g.
     :hg:`incoming`) and outbound (e.g. :hg:`outgoing`, :hg:`email` and
     :hg:`bundle`) operations.
 
     See :hg:`help urls` for more information.
 
     Returns 0 on success.
     """
     if search:
         for name, path in ui.configitems("paths"):
             if name == search:
                 ui.write("%s\n" % url.hidepassword(path))
                 return
         ui.warn(_("not found!\n"))
         return 1
     else:
         for name, path in ui.configitems("paths"):
             ui.write("%s = %s\n" % (name, url.hidepassword(path)))
 
 def postincoming(ui, repo, modheads, optupdate, checkout):
     if modheads == 0:
         return
     if optupdate:
         if (modheads <= 1 or len(repo.branchheads()) == 1) or checkout:
             return hg.update(repo, checkout)
         else:
             ui.status(_("not updating, since new heads added\n"))
     if modheads > 1:
         currentbranchheads = len(repo.branchheads())
         if currentbranchheads == modheads:
             ui.status(_("(run 'hg heads' to see heads, 'hg merge' to merge)\n"))
         elif currentbranchheads > 1:
             ui.status(_("(run 'hg heads .' to see heads, 'hg merge' to merge)\n"))
         else:
             ui.status(_("(run 'hg heads' to see heads)\n"))
     else:
         ui.status(_("(run 'hg update' to get a working copy)\n"))
 
 def pull(ui, repo, source="default", **opts):
     """pull changes from the specified source
 
     Pull changes from a remote repository to a local one.
 
     This finds all changes from the repository at the specified path
     or URL and adds them to a local repository (the current one unless
     -R is specified). By default, this does not update the copy of the
     project in the working directory.
 
     Use :hg:`incoming` if you want to see what would have been added
     by a pull at the time you issued this command. If you then decide
     to add those changes to the repository, you should use :hg:`pull
     -r X` where ``X`` is the last changeset listed by :hg:`incoming`.
 
     If SOURCE is omitted, the 'default' path will be used.
     See :hg:`help urls` for more information.
 
     Returns 0 on success, 1 if an update had unresolved files.
     """
     source, branches = hg.parseurl(ui.expandpath(source), opts.get('branch'))
     other = hg.repository(hg.remoteui(repo, opts), source)
     ui.status(_('pulling from %s\n') % url.hidepassword(source))
     revs, checkout = hg.addbranchrevs(repo, other, branches, opts.get('rev'))
 
     if opts.get('bookmark'):
         if not revs:
             revs = []
         rb = other.listkeys('bookmarks')
         for b in opts['bookmark']:
             if b not in rb:
                 raise util.Abort(_('remote bookmark %s not found!') % b)
             revs.append(rb[b])
 
     if revs:
         try:
             revs = [other.lookup(rev) for rev in revs]
         except error.CapabilityError:
             err = _("other repository doesn't support revision lookup, "
                     "so a rev cannot be specified.")
             raise util.Abort(err)
 
     modheads = repo.pull(other, heads=revs, force=opts.get('force'))
     bookmarks.updatefromremote(ui, repo, other)
     if checkout:
         checkout = str(repo.changelog.rev(other.lookup(checkout)))
     repo._subtoppath = source
     try:
         ret = postincoming(ui, repo, modheads, opts.get('update'), checkout)
 
     finally:
         del repo._subtoppath
 
     # update specified bookmarks
     if opts.get('bookmark'):
         for b in opts['bookmark']:
             # explicit pull overrides local bookmark if any
             ui.status(_("importing bookmark %s\n") % b)
             repo._bookmarks[b] = repo[rb[b]].node()
         bookmarks.write(repo)
 
     return ret
 
 def push(ui, repo, dest=None, **opts):
     """push changes to the specified destination
 
     Push changesets from the local repository to the specified
     destination.
 
     This operation is symmetrical to pull: it is identical to a pull
     in the destination repository from the current one.
 
     By default, push will not allow creation of new heads at the
     destination, since multiple heads would make it unclear which head
     to use. In this situation, it is recommended to pull and merge
     before pushing.
 
     Use --new-branch if you want to allow push to create a new named
     branch that is not present at the destination. This allows you to
     only create a new branch without forcing other changes.
 
     Use -f/--force to override the default behavior and push all
     changesets on all branches.
 
     If -r/--rev is used, the specified revision and all its ancestors
     will be pushed to the remote repository.
 
     Please see :hg:`help urls` for important details about ``ssh://``
     URLs. If DESTINATION is omitted, a default path will be used.
 
     Returns 0 if push was successful, 1 if nothing to push.
     """
 
     if opts.get('bookmark'):
         for b in opts['bookmark']:
             # translate -B options to -r so changesets get pushed
             if b in repo._bookmarks:
                 opts.setdefault('rev', []).append(b)
             else:
                 # if we try to push a deleted bookmark, translate it to null
                 # this lets simultaneous -r, -b options continue working
                 opts.setdefault('rev', []).append("null")
 
     dest = ui.expandpath(dest or 'default-push', dest or 'default')
     dest, branches = hg.parseurl(dest, opts.get('branch'))
     ui.status(_('pushing to %s\n') % url.hidepassword(dest))
     revs, checkout = hg.addbranchrevs(repo, repo, branches, opts.get('rev'))
     other = hg.repository(hg.remoteui(repo, opts), dest)
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
     repo._subtoppath = dest
     try:
         # push subrepos depth-first for coherent ordering
         c = repo['']
         subs = c.substate # only repos that are committed
         for s in sorted(subs):
             if not c.sub(s).push(opts.get('force')):
                 return False
     finally:
         del repo._subtoppath
     result = repo.push(other, opts.get('force'), revs=revs,
                        newbranch=opts.get('new_branch'))
 
     result = (result == 0)
 
     if opts.get('bookmark'):
         rb = other.listkeys('bookmarks')
         for b in opts['bookmark']:
             # explicit push overrides remote bookmark if any
             if b in repo._bookmarks:
                 ui.status(_("exporting bookmark %s\n") % b)
                 new = repo[b].hex()
             elif b in rb:
                 ui.status(_("deleting remote bookmark %s\n") % b)
                 new = '' # delete
             else:
                 ui.warn(_('bookmark %s does not exist on the local '
                           'or remote repository!\n') % b)
                 return 2
             old = rb.get(b, '')
             r = other.pushkey('bookmarks', b, old, new)
             if not r:
                 ui.warn(_('updating bookmark %s failed!\n') % b)
                 if not result:
                     result = 2
 
     return result
 
 def recover(ui, repo):
     """roll back an interrupted transaction
 
     Recover from an interrupted commit or pull.
 
     This command tries to fix the repository status after an
     interrupted operation. It should only be necessary when Mercurial
     suggests it.
 
     Returns 0 if successful, 1 if nothing to recover or verify fails.
     """
     if repo.recover():
         return hg.verify(repo)
     return 1
 
 def remove(ui, repo, *pats, **opts):
     """remove the specified files on the next commit
 
     Schedule the indicated files for removal from the repository.
 
     This only removes files from the current branch, not from the
     entire project history. -A/--after can be used to remove only
     files that have already been deleted, -f/--force can be used to
     force deletion, and -Af can be used to remove files from the next
     revision without deleting them from the working directory.
 
     The following table details the behavior of remove for different
     file states (columns) and option combinations (rows). The file
     states are Added [A], Clean [C], Modified [M] and Missing [!] (as
     reported by :hg:`status`). The actions are Warn, Remove (from
     branch) and Delete (from disk)::
 
              A  C  M  !
       none   W  RD W  R
       -f     R  RD RD R
       -A     W  W  W  R
       -Af    R  R  R  R
 
     This command schedules the files to be removed at the next commit.
     To undo a remove before that, see :hg:`revert`.
 
     Returns 0 on success, 1 if any warnings encountered.
     """
 
     ret = 0
     after, force = opts.get('after'), opts.get('force')
     if not pats and not after:
         raise util.Abort(_('no files specified'))
 
     m = cmdutil.match(repo, pats, opts)
     s = repo.status(match=m, clean=True)
     modified, added, deleted, clean = s[0], s[1], s[3], s[6]
 
     for f in m.files():
         if f not in repo.dirstate and not os.path.isdir(m.rel(f)):
             ui.warn(_('not removing %s: file is untracked\n') % m.rel(f))
             ret = 1
 
     if force:
         remove, forget = modified + deleted + clean, added
     elif after:
         remove, forget = deleted, []
         for f in modified + added + clean:
             ui.warn(_('not removing %s: file still exists (use -f'
                       ' to force removal)\n') % m.rel(f))
             ret = 1
     else:
         remove, forget = deleted + clean, []
         for f in modified:
             ui.warn(_('not removing %s: file is modified (use -f'
                       ' to force removal)\n') % m.rel(f))
             ret = 1
         for f in added:
             ui.warn(_('not removing %s: file has been marked for add (use -f'
                       ' to force removal)\n') % m.rel(f))
             ret = 1
 
     for f in sorted(remove + forget):
         if ui.verbose or not m.exact(f):
             ui.status(_('removing %s\n') % m.rel(f))
 
     repo[None].forget(forget)
     repo[None].remove(remove, unlink=not after)
     return ret
 
 def rename(ui, repo, *pats, **opts):
     """rename files; equivalent of copy + remove
 
     Mark dest as copies of sources; mark sources for deletion. If dest
     is a directory, copies are put in that directory. If dest is a
     file, there can only be one source.
 
     By default, this command copies the contents of files as they
     exist in the working directory. If invoked with -A/--after, the
     operation is recorded, but no copying is performed.
 
     This command takes effect at the next commit. To undo a rename
     before that, see :hg:`revert`.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     wlock = repo.wlock(False)
     try:
         return cmdutil.copy(ui, repo, pats, opts, rename=True)
     finally:
         wlock.release()
 
 def resolve(ui, repo, *pats, **opts):
     """redo merges or set/view the merge status of files
 
     Merges with unresolved conflicts are often the result of
     non-interactive merging using the ``internal:merge`` configuration
     setting, or a command-line merge tool like ``diff3``. The resolve
     command is used to manage the files involved in a merge, after
     :hg:`merge` has been run, and before :hg:`commit` is run (i.e. the
     working directory must have two parents).
 
     The resolve command can be used in the following ways:
 
     - :hg:`resolve [--tool TOOL] FILE...`: attempt to re-merge the specified
       files, discarding any previous merge attempts. Re-merging is not
       performed for files already marked as resolved. Use ``--all/-a``
       to selects all unresolved files. ``--tool`` can be used to specify
       the merge tool used for the given files. It overrides the HGMERGE
       environment variable and your configuration files.
 
     - :hg:`resolve -m [FILE]`: mark a file as having been resolved
       (e.g. after having manually fixed-up the files). The default is
       to mark all unresolved files.
 
     - :hg:`resolve -u [FILE]...`: mark a file as unresolved. The
       default is to mark all resolved files.
 
     - :hg:`resolve -l`: list files which had or still have conflicts.
       In the printed list, ``U`` = unresolved and ``R`` = resolved.
 
     Note that Mercurial will not let you commit files with unresolved
     merge conflicts. You must use :hg:`resolve -m ...` before you can
     commit after a conflicting merge.
 
     Returns 0 on success, 1 if any files fail a resolve attempt.
     """
 
     all, mark, unmark, show, nostatus = \
         [opts.get(o) for o in 'all mark unmark list no_status'.split()]
 
     if (show and (mark or unmark)) or (mark and unmark):
         raise util.Abort(_("too many options specified"))
     if pats and all:
         raise util.Abort(_("can't specify --all and patterns"))
     if not (all or pats or show or mark or unmark):
         raise util.Abort(_('no files or directories specified; '
                            'use --all to remerge all files'))
 
     ms = mergemod.mergestate(repo)
     m = cmdutil.match(repo, pats, opts)
     ret = 0
 
     for f in ms:
         if m(f):
             if show:
                 if nostatus:
                     ui.write("%s\n" % f)
                 else:
                     ui.write("%s %s\n" % (ms[f].upper(), f),
                              label='resolve.' +
                              {'u': 'unresolved', 'r': 'resolved'}[ms[f]])
             elif mark:
                 ms.mark(f, "r")
             elif unmark:
                 ms.mark(f, "u")
             else:
                 wctx = repo[None]
                 mctx = wctx.parents()[-1]
 
                 # backup pre-resolve (merge uses .orig for its own purposes)
                 a = repo.wjoin(f)
                 util.copyfile(a, a + ".resolve")
 
                 try:
                     # resolve file
                     ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
                     if ms.resolve(f, wctx, mctx):
                         ret = 1
                 finally:
                     ui.setconfig('ui', 'forcemerge', '')
 
                 # replace filemerge's .orig file with our resolve file
                 util.rename(a + ".resolve", a + ".orig")
 
     ms.commit()
     return ret
 
 def revert(ui, repo, *pats, **opts):
     """restore individual files or directories to an earlier state
 
     .. note::
        This command is most likely not what you are looking for.
        Revert will partially overwrite content in the working
        directory without changing the working directory parents. Use
        :hg:`update -r rev` to check out earlier revisions, or
        :hg:`update --clean .` to undo a merge which has added another
        parent.
 
     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 a
     revision.
 
     Using the -r/--rev option, revert the given files or directories
     to their contents as of a specific revision. This can be helpful
     to "roll back" some or all of an earlier change. See :hg:`help
     dates` for a list of formats valid for -d/--date.
 
     Revert modifies the working directory. It does not commit any
     changes, or change the parent of the working directory. If you
     revert to a revision other than the parent of the working
     directory, the reverted files will thus appear modified
     afterwards.
 
     If a file has been deleted, it is restored. Files scheduled for
     addition are just unscheduled and left as they are. 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.
 
     Returns 0 on success.
     """
 
     if opts.get("date"):
         if opts.get("rev"):
             raise util.Abort(_("you can't specify a revision and a date"))
         opts["rev"] = cmdutil.finddate(ui, repo, opts["date"])
 
     parent, p2 = repo.dirstate.parents()
     if not opts.get('rev') and p2 != nullid:
         raise util.Abort(_('uncommitted merge - '
                            'use "hg update", see "hg help revert"'))
 
     if not pats and not opts.get('all'):
         raise util.Abort(_('no files or directories specified; '
                            'use --all to revert the whole repo'))
 
     ctx = cmdutil.revsingle(repo, opts.get('rev'))
     node = ctx.node()
     mf = ctx.manifest()
     if node == parent:
         pmf = mf
     else:
         pmf = None
 
     # need all matching names in dirstate and manifest of target rev,
     # so have to walk both. do not print errors if files exist in one
     # but not other.
 
     names = {}
 
     wlock = repo.wlock()
     try:
         # walk dirstate.
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = lambda x, y: False
         for abs in repo.walk(m):
             names[abs] = m.rel(abs), m.exact(abs)
 
         # walk target manifest.
 
         def badfn(path, msg):
             if path in names:
                 return
             path_ = path + '/'
             for f in names:
                 if f.startswith(path_):
                     return
             ui.warn("%s: %s\n" % (m.rel(path), msg))
 
         m = cmdutil.match(repo, pats, opts)
         m.bad = badfn
         for abs in repo[node].walk(m):
             if abs not in names:
                 names[abs] = m.rel(abs), m.exact(abs)
 
         m = cmdutil.matchfiles(repo, names)
         changes = repo.status(match=m)[:4]
         modified, added, removed, deleted = map(set, 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.add(src)
                 names[src] = (repo.pathto(src, cwd), True)
 
         def removeforget(abs):
             if repo.dirstate[abs] == 'a':
                 return _('forgetting %s\n')
             return _('removing %s\n')
 
         revert = ([], _('reverting %s\n'))
         add = ([], _('adding %s\n'))
         remove = ([], removeforget)
         undelete = ([], _('undeleting %s\n'))
 
         disptable = (
             # dispatch table:
             #   file state
             #   action if in target manifest
             #   action if not in target manifest
             #   make backup if in target manifest
             #   make backup if not in target manifest
             (modified, revert, remove, True, True),
             (added, revert, remove, True, False),
             (removed, undelete, None, False, False),
             (deleted, revert, remove, False, False),
             )
 
         for abs, (rel, exact) in sorted(names.items()):
             mfentry = mf.get(abs)
             target = repo.wjoin(abs)
             def handle(xlist, dobackup):
                 xlist[0].append(abs)
                 if (dobackup and not opts.get('no_backup') and
                     os.path.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.rename(target, bakname)
                 if ui.verbose or not exact:
                     msg = xlist[1]
                     if not isinstance(msg, basestring):
                         msg = msg(abs)
                     ui.status(msg % rel)
             for table, hitlist, misslist, backuphit, backupmiss in disptable:
                 if abs not in table:
                     continue
                 # file has changed in dirstate
                 if mfentry:
                     handle(hitlist, backuphit)
                 elif misslist is not None:
                     handle(misslist, backupmiss)
                 break
             else:
                 if abs not in repo.dirstate:
                     if mfentry:
                         handle(add, True)
                     elif exact:
                         ui.warn(_('file not managed: %s\n') % rel)
                     continue
                 # file has not changed in dirstate
                 if node == parent:
                     if exact:
                         ui.warn(_('no changes needed to %s\n') % rel)
                     continue
                 if pmf is None:
                     # only need parent manifest in this unlikely case,
                     # so do not read by default
                     pmf = repo[parent].manifest()
                 if abs in pmf:
                     if mfentry:
                         # if version of file is same in parent and target
                         # manifests, do nothing
                         if (pmf[abs] != mfentry or
                             pmf.flags(abs) != mf.flags(abs)):
                             handle(revert, False)
                     else:
                         handle(remove, False)
 
         if not opts.get('dry_run'):
             def checkout(f):
                 fc = ctx[f]
                 repo.wwrite(f, fc.data(), fc.flags())
 
             audit_path = scmutil.path_auditor(repo.root)
             for f in remove[0]:
                 if repo.dirstate[f] == 'a':
                     repo.dirstate.forget(f)
                     continue
                 audit_path(f)
                 try:
                     util.unlinkpath(repo.wjoin(f))
                 except OSError:
                     pass
                 repo.dirstate.remove(f)
 
             normal = None
             if node == parent:
                 # We're reverting to our parent. If possible, we'd like status
                 # to report the file as clean. We have to use normallookup for
                 # merges to avoid losing information about merged/dirty files.
                 if p2 != nullid:
                     normal = repo.dirstate.normallookup
                 else:
                     normal = repo.dirstate.normal
             for f in revert[0]:
                 checkout(f)
                 if normal:
                     normal(f)
 
             for f in add[0]:
                 checkout(f)
                 repo.dirstate.add(f)
 
             normal = repo.dirstate.normallookup
             if node == parent and p2 == nullid:
                 normal = repo.dirstate.normal
             for f in undelete[0]:
                 checkout(f)
                 normal(f)
 
     finally:
         wlock.release()
 
 def rollback(ui, repo, **opts):
     """roll back the last transaction (dangerous)
 
     This command should be used with care. There is only one level of
     rollback, and there is no way to undo a rollback. It will also
     restore the dirstate at the time of the last transaction, losing
     any dirstate changes since that time. This command does not alter
     the working directory.
 
     Transactions are used to encapsulate the effects of all commands
     that create new changesets or propagate existing changesets into a
     repository. For example, the following commands are transactional,
     and their effects can be rolled back:
 
     - commit
     - import
     - pull
     - push (with this repository as the destination)
     - unbundle
 
     This command is not intended for use on public repositories. Once
     changes are visible for pull by other users, rolling a transaction
     back locally is ineffective (someone else may already have pulled
     the changes). Furthermore, a race is possible with readers of the
     repository; for example an in-progress pull from the repository
     may fail if a rollback is performed.
 
     Returns 0 on success, 1 if no rollback data is available.
     """
     return repo.rollback(opts.get('dry_run'))
 
 def root(ui, repo):
     """print the root (top) of the current working directory
 
     Print the root directory of the current repository.
 
     Returns 0 on success.
     """
     ui.write(repo.root + "\n")
 
 def serve(ui, repo, **opts):
     """start stand-alone webserver
 
     Start a local HTTP repository browser and pull server. You can use
     this for ad-hoc sharing and browsing of repositories. It is
     recommended to use a real web server to serve a repository for
     longer periods of time.
 
     Please note that the server does not implement access control.
     This means that, by default, anybody can read from the server and
     nobody can write to it by default. Set the ``web.allow_push``
     option to ``*`` to allow everybody to push to the server. You
     should use a real web server if you need to authenticate users.
 
     By default, the server logs accesses to stdout and errors to
     stderr. Use the -A/--accesslog and -E/--errorlog options to log to
     files.
 
     To have the server choose a free port number to listen on, specify
     a port number of 0; in this case, the server will print the port
     number it uses.
 
     Returns 0 on success.
     """
 
     if opts["stdio"]:
         if repo is None:
             raise error.RepoError(_("There is no Mercurial repository here"
                               " (.hg not found)"))
         s = sshserver.sshserver(ui, repo)
         s.serve_forever()
 
     # this way we can check if something was given in the command-line
     if opts.get('port'):
         opts['port'] = util.getport(opts.get('port'))
 
     baseui = repo and repo.baseui or ui
     optlist = ("name templates style address port prefix ipv6"
                " accesslog errorlog certificate encoding")
     for o in optlist.split():
         val = opts.get(o, '')
         if val in (None, ''): # should check against default options instead
             continue
         baseui.setconfig("web", o, val)
         if repo and repo.ui != baseui:
             repo.ui.setconfig("web", o, val)
 
     o = opts.get('web_conf') or opts.get('webdir_conf')
     if not o:
         if not repo:
             raise error.RepoError(_("There is no Mercurial repository"
                                     " here (.hg not found)"))
         o = repo.root
 
     app = hgweb.hgweb(o, baseui=ui)
 
     class service(object):
         def init(self):
             util.set_signal_handler()
             self.httpd = hgweb.server.create_server(ui, app)
 
             if opts['port'] and not ui.verbose:
                 return
 
             if self.httpd.prefix:
                 prefix = self.httpd.prefix.strip('/') + '/'
             else:
                 prefix = ''
 
             port = ':%d' % self.httpd.port
             if port == ':80':
                 port = ''
 
             bindaddr = self.httpd.addr
             if bindaddr == '0.0.0.0':
                 bindaddr = '*'
             elif ':' in bindaddr: # IPv6
                 bindaddr = '[%s]' % bindaddr
 
             fqaddr = self.httpd.fqaddr
             if ':' in fqaddr:
                 fqaddr = '[%s]' % fqaddr
             if opts['port']:
                 write = ui.status
             else:
                 write = ui.write
             write(_('listening at http://%s%s/%s (bound to %s:%d)\n') %
                   (fqaddr, port, prefix, bindaddr, self.httpd.port))
 
         def run(self):
             self.httpd.serve_forever()
 
     service = service()
 
     cmdutil.service(opts, initfn=service.init, runfn=service.run)
 
 def status(ui, repo, *pats, **opts):
     """show changed files in the working directory
 
     Show status of files in the repository. If names are given, only
     files that match are shown. Files that are clean or ignored or
     the source of a copy/move operation, are not listed unless
     -c/--clean, -i/--ignored, -C/--copies or -A/--all are given.
     Unless options described with "show only ..." are given, the
     options -mardu are used.
 
     Option -q/--quiet hides untracked (unknown and ignored) files
     unless explicitly requested with -u/--unknown or -i/--ignored.
 
     .. note::
        status may appear to disagree with diff if permissions have
        changed or a merge has occurred. The standard diff format does
        not report permission changes and diff only reports changes
        relative to one merge parent.
 
     If one revision is given, it is used as the base revision.
     If two revisions are given, the differences between them are
     shown. The --change option can also be used as a shortcut to list
     the changed files of a revision from its first parent.
 
     The codes used to show the status of files are::
 
       M = modified
       A = added
       R = removed
       C = clean
       ! = missing (deleted by non-hg command, but still tracked)
       ? = not tracked
       I = ignored
         = origin of the previous file listed as A (added)
 
     Returns 0 on success.
     """
 
     revs = opts.get('rev')
     change = opts.get('change')
 
     if revs and change:
         msg = _('cannot specify --rev and --change at the same time')
         raise util.Abort(msg)
     elif change:
         node2 = repo.lookup(change)
         node1 = repo[node2].p1().node()
     else:
         node1, node2 = cmdutil.revpair(repo, revs)
 
     cwd = (pats and repo.getcwd()) or ''
     end = opts.get('print0') and '\0' or '\n'
     copy = {}
     states = 'modified added removed deleted unknown ignored clean'.split()
     show = [k for k in states if opts.get(k)]
     if opts.get('all'):
         show += ui.quiet and (states[:4] + ['clean']) or states
     if not show:
         show = ui.quiet and states[:4] or states[:5]
 
     stat = repo.status(node1, node2, cmdutil.match(repo, pats, opts),
                        'ignored' in show, 'clean' in show, 'unknown' in show,
                        opts.get('subrepos'))
     changestates = zip(states, 'MAR!?IC', stat)
 
     if (opts.get('all') or opts.get('copies')) and not opts.get('no_status'):
         ctxn = repo[nullid]
         ctx1 = repo[node1]
         ctx2 = repo[node2]
         added = stat[1]
         if node2 is None:
             added = stat[0] + stat[1] # merged?
 
         for k, v in copies.copies(repo, ctx1, ctx2, ctxn)[0].iteritems():
             if k in added:
                 copy[k] = v
             elif v in added:
                 copy[v] = k
 
     for state, char, files in changestates:
         if state in show:
             format = "%s %%s%s" % (char, end)
             if opts.get('no_status'):
                 format = "%%s%s" % end
 
             for f in files:
                 ui.write(format % repo.pathto(f, cwd),
                          label='status.' + state)
                 if f in copy:
                     ui.write('  %s%s' % (repo.pathto(copy[f], cwd), end),
                              label='status.copied')
 
 def summary(ui, repo, **opts):
     """summarize working directory state
 
     This generates a brief summary of the working directory state,
     including parents, branch, commit status, and available updates.
 
     With the --remote option, this will check the default paths for
     incoming and outgoing changes. This can be time-consuming.
 
     Returns 0 on success.
     """
 
     ctx = repo[None]
     parents = ctx.parents()
     pnode = parents[0].node()
 
     for p in parents:
         # label with log.changeset (instead of log.parent) since this
         # shows a working directory parent *changeset*:
         ui.write(_('parent: %d:%s ') % (p.rev(), str(p)),
                  label='log.changeset')
         ui.write(' '.join(p.tags()), label='log.tag')
         if p.bookmarks():
             ui.write(' ' + ' '.join(p.bookmarks()), label='log.bookmark')
         if p.rev() == -1:
             if not len(repo):
                 ui.write(_(' (empty repository)'))
             else:
                 ui.write(_(' (no revision checked out)'))
         ui.write('\n')
         if p.description():
             ui.status(' ' + p.description().splitlines()[0].strip() + '\n',
                       label='log.summary')
 
     branch = ctx.branch()
     bheads = repo.branchheads(branch)
     m = _('branch: %s\n') % branch
     if branch != 'default':
         ui.write(m, label='log.branch')
     else:
         ui.status(m, label='log.branch')
 
     st = list(repo.status(unknown=True))[:6]
 
     c = repo.dirstate.copies()
     copied, renamed = [], []
     for d, s in c.iteritems():
         if s in st[2]:
             st[2].remove(s)
             renamed.append(d)
         else:
             copied.append(d)
         if d in st[1]:
             st[1].remove(d)
     st.insert(3, renamed)
     st.insert(4, copied)
 
     ms = mergemod.mergestate(repo)
     st.append([f for f in ms if ms[f] == 'u'])
 
     subs = [s for s in ctx.substate if ctx.sub(s).dirty()]
     st.append(subs)
 
     labels = [ui.label(_('%d modified'), 'status.modified'),
               ui.label(_('%d added'), 'status.added'),
               ui.label(_('%d removed'), 'status.removed'),
               ui.label(_('%d renamed'), 'status.copied'),
               ui.label(_('%d copied'), 'status.copied'),
               ui.label(_('%d deleted'), 'status.deleted'),
               ui.label(_('%d unknown'), 'status.unknown'),
               ui.label(_('%d ignored'), 'status.ignored'),
               ui.label(_('%d unresolved'), 'resolve.unresolved'),
               ui.label(_('%d subrepos'), 'status.modified')]
     t = []
     for s, l in zip(st, labels):
         if s:
             t.append(l % len(s))
 
     t = ', '.join(t)
     cleanworkdir = False
 
     if len(parents) > 1:
         t += _(' (merge)')
     elif branch != parents[0].branch():
         t += _(' (new branch)')
     elif (parents[0].extra().get('close') and
           pnode in repo.branchheads(branch, closed=True)):
         t += _(' (head closed)')
     elif not (st[0] or st[1] or st[2] or st[3] or st[4] or st[9]):
         t += _(' (clean)')
         cleanworkdir = True
     elif pnode not in bheads:
         t += _(' (new branch head)')
 
     if cleanworkdir:
         ui.status(_('commit: %s\n') % t.strip())
     else:
         ui.write(_('commit: %s\n') % t.strip())
 
     # all ancestors of branch heads - all ancestors of parent = new csets
     new = [0] * len(repo)
     cl = repo.changelog
     for a in [cl.rev(n) for n in bheads]:
         new[a] = 1
     for a in cl.ancestors(*[cl.rev(n) for n in bheads]):
         new[a] = 1
     for a in [p.rev() for p in parents]:
         if a >= 0:
             new[a] = 0
     for a in cl.ancestors(*[p.rev() for p in parents]):
         new[a] = 0
     new = sum(new)
 
     if new == 0:
         ui.status(_('update: (current)\n'))
     elif pnode not in bheads:
         ui.write(_('update: %d new changesets (update)\n') % new)
     else:
         ui.write(_('update: %d new changesets, %d branch heads (merge)\n') %
                  (new, len(bheads)))
 
     if opts.get('remote'):
         t = []
         source, branches = hg.parseurl(ui.expandpath('default'))
         other = hg.repository(hg.remoteui(repo, {}), source)
         revs, checkout = hg.addbranchrevs(repo, other, branches, opts.get('rev'))
         ui.debug('comparing with %s\n' % url.hidepassword(source))
         repo.ui.pushbuffer()
         common, incoming, rheads = discovery.findcommonincoming(repo, other)
         repo.ui.popbuffer()
         if incoming:
             t.append(_('1 or more incoming'))
 
         dest, branches = hg.parseurl(ui.expandpath('default-push', 'default'))
         revs, checkout = hg.addbranchrevs(repo, repo, branches, None)
         other = hg.repository(hg.remoteui(repo, {}), dest)
         ui.debug('comparing with %s\n' % url.hidepassword(dest))
         repo.ui.pushbuffer()
-        o = discovery.findoutgoing(repo, other)
+        common, _anyinc, _heads = discovery.findcommonincoming(repo, other)
         repo.ui.popbuffer()
-        o = repo.changelog.nodesbetween(o, None)[0]
+        o = repo.changelog.findmissing(common=common)
         if o:
             t.append(_('%d outgoing') % len(o))
         if 'bookmarks' in other.listkeys('namespaces'):
             lmarks = repo.listkeys('bookmarks')
             rmarks = other.listkeys('bookmarks')
             diff = set(rmarks) - set(lmarks)
             if len(diff) > 0:
                 t.append(_('%d incoming bookmarks') % len(diff))
             diff = set(lmarks) - set(rmarks)
             if len(diff) > 0:
                 t.append(_('%d outgoing bookmarks') % len(diff))
 
         if t:
             ui.write(_('remote: %s\n') % (', '.join(t)))
         else:
             ui.status(_('remote: (synced)\n'))
 
 def tag(ui, repo, name1, *names, **opts):
     """add one or more tags for the current or given revision
 
     Name a particular revision using <name>.
 
     Tags are used to name particular revisions of the repository and are
     very useful to compare different revisions, to go back to significant
     earlier versions or to mark branch points as releases, etc. Changing
     an existing tag is normally disallowed; use -f/--force to override.
 
     If no revision is given, the parent of the working directory is
     used, 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. This
     also means that tagging creates a new commit. The file
     ".hg/localtags" is used for local tags (not shared among
     repositories).
 
     Tag commits are usually made at the head of a branch. If the parent
     of the working directory is not a branch head, :hg:`tag` aborts; use
     -f/--force to force the tag commit to be based on a non-head
     changeset.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Since tag names have priority over branch names during revision
     lookup, using an existing branch name as a tag name is discouraged.
 
     Returns 0 on success.
     """
 
     rev_ = "."
     names = [t.strip() for t in (name1,) + names]
     if len(names) != len(set(names)):
         raise util.Abort(_('tag names must be unique'))
     for n in names:
         if n in ['tip', '.', 'null']:
             raise util.Abort(_('the name \'%s\' is reserved') % n)
         if not n:
             raise util.Abort(_('tag names cannot consist entirely of whitespace'))
     if opts.get('rev') and opts.get('remove'):
         raise util.Abort(_("--rev and --remove are incompatible"))
     if opts.get('rev'):
         rev_ = opts['rev']
     message = opts.get('message')
     if opts.get('remove'):
         expectedtype = opts.get('local') and 'local' or 'global'
         for n in names:
             if not repo.tagtype(n):
                 raise util.Abort(_('tag \'%s\' does not exist') % n)
             if repo.tagtype(n) != expectedtype:
                 if expectedtype == 'global':
                     raise util.Abort(_('tag \'%s\' is not a global tag') % n)
                 else:
                     raise util.Abort(_('tag \'%s\' is not a local tag') % n)
         rev_ = nullid
         if not message:
             # we don't translate commit messages
             message = 'Removed tag %s' % ', '.join(names)
     elif not opts.get('force'):
         for n in names:
             if n in repo.tags():
                 raise util.Abort(_('tag \'%s\' already exists '
                                    '(use -f to force)') % n)
     if not opts.get('local'):
         p1, p2 = repo.dirstate.parents()
         if p2 != nullid:
             raise util.Abort(_('uncommitted merge'))
         bheads = repo.branchheads()
         if not opts.get('force') and bheads and p1 not in bheads:
             raise util.Abort(_('not at a branch head (use -f to force)'))
     r = cmdutil.revsingle(repo, rev_).node()
 
     if not message:
         # we don't translate commit messages
         message = ('Added tag %s for changeset %s' %
                    (', '.join(names), short(r)))
 
     date = opts.get('date')
     if date:
         date = util.parsedate(date)
 
     if opts.get('edit'):
         message = ui.edit(message, ui.username())
 
     repo.tag(names, r, message, opts.get('local'), opts.get('user'), date)
 
 def tags(ui, repo):
     """list repository tags
 
     This lists both regular and local tags. When the -v/--verbose
     switch is used, a third column "local" is printed for local tags.
 
     Returns 0 on success.
     """
 
     hexfunc = ui.debugflag and hex or short
     tagtype = ""
 
     for t, n in reversed(repo.tagslist()):
         if ui.quiet:
             ui.write("%s\n" % t)
             continue
 
         hn = hexfunc(n)
         r = "%5d:%s" % (repo.changelog.rev(n), hn)
         spaces = " " * (30 - encoding.colwidth(t))
 
         if ui.verbose:
             if repo.tagtype(t) == 'local':
                 tagtype = " local"
             else:
                 tagtype = ""
         ui.write("%s%s %s%s\n" % (t, spaces, r, tagtype))
 
 def tip(ui, repo, **opts):
     """show the tip revision
 
     The tip revision (usually just called the tip) is the changeset
     most recently added to the repository (and therefore the most
     recently changed head).
 
     If you have just made a commit, that commit will be the tip. If
     you have just pulled changes from another repository, the tip of
     that repository becomes the current tip. The "tip" tag is special
     and cannot be renamed or assigned to a different changeset.
 
     Returns 0 on success.
     """
     displayer = cmdutil.show_changeset(ui, repo, opts)
     displayer.show(repo[len(repo) - 1])
     displayer.close()
 
 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.
 
     Returns 0 on success, 1 if an update has unresolved files.
     """
     fnames = (fname1,) + fnames
 
     lock = repo.lock()
     wc = repo['.']
     try:
         for fname in fnames:
             f = url.open(ui, fname)
             gen = changegroup.readbundle(f, fname)
             modheads = repo.addchangegroup(gen, 'unbundle', 'bundle:' + fname,
                                            lock=lock)
         bookmarks.updatecurrentbookmark(repo, wc.node(), wc.branch())
     finally:
         lock.release()
     return postincoming(ui, repo, modheads, opts.get('update'), None)
 
 def update(ui, repo, node=None, rev=None, clean=False, date=None, check=False):
     """update working directory (or switch revisions)
 
     Update the repository's working directory to the specified
     changeset. If no changeset is specified, update to the tip of the
     current named branch.
 
     If the changeset is not a descendant of the working directory's
     parent, the update is aborted. With the -c/--check option, the
     working directory is checked for uncommitted changes; if none are
     found, the working directory is updated to the specified
     changeset.
 
     The following rules apply when the working directory contains
     uncommitted changes:
 
     1. If neither -c/--check nor -C/--clean is specified, and if
        the requested changeset is an ancestor or descendant of
        the working directory's parent, the uncommitted changes
        are merged into the requested changeset and the merged
        result is left uncommitted. If the requested changeset is
        not an ancestor or descendant (that is, it is on another
        branch), the update is aborted and the uncommitted changes
        are preserved.
 
     2. With the -c/--check option, the update is aborted and the
        uncommitted changes are preserved.
 
     3. With the -C/--clean option, uncommitted changes are discarded and
        the working directory is updated to the requested changeset.
 
     Use null as the changeset to remove the working directory (like
     :hg:`clone -U`).
 
     If you want to update just one file to an older changeset, use
     :hg:`revert`.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
 
     Returns 0 on success, 1 if there are unresolved files.
     """
     if rev and node:
         raise util.Abort(_("please specify just one revision"))
 
     if rev is None or rev == '':
         rev = node
 
     # if we defined a bookmark, we have to remember the original bookmark name
     brev = rev
     rev = cmdutil.revsingle(repo, rev, rev).rev()
 
     if check and clean:
         raise util.Abort(_("cannot specify both -c/--check and -C/--clean"))
 
     if check:
         # we could use dirty() but we can ignore merge and branch trivia
         c = repo[None]
         if c.modified() or c.added() or c.removed():
             raise util.Abort(_("uncommitted local changes"))
 
     if date:
         if rev is not None:
             raise util.Abort(_("you can't specify a revision and a date"))
         rev = cmdutil.finddate(ui, repo, date)
 
     if clean or check:
         ret = hg.clean(repo, rev)
     else:
         ret = hg.update(repo, rev)
 
     if brev in repo._bookmarks:
         bookmarks.setcurrent(repo, brev)
 
     return ret
 
 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.
 
     Returns 0 on success, 1 if errors are encountered.
     """
     return hg.verify(repo)
 
 def version_(ui):
     """output version and copyright information"""
     ui.write(_("Mercurial Distributed SCM (version %s)\n")
              % util.version())
     ui.status(_(
         "(see http://mercurial.selenic.com for more information)\n"
         "\nCopyright (C) 2005-2011 Matt Mackall and others\n"
         "This is free software; see the source for copying conditions. "
         "There is NO\nwarranty; "
         "not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     ))
 
 # Command options and aliases are listed here, alphabetically
 
 globalopts = [
     ('R', 'repository', '',
      _('repository root directory or name of overlay bundle file'),
      _('REPO')),
     ('', 'cwd', '',
      _('change working directory'), _('DIR')),
     ('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 (use \'section.name=value\')'),
      _('CONFIG')),
     ('', 'debug', None, _('enable debugging output')),
     ('', 'debugger', None, _('start debugger')),
     ('', 'encoding', encoding.encoding, _('set the charset encoding'),
      _('ENCODE')),
     ('', 'encodingmode', encoding.encodingmode,
      _('set the charset encoding mode'), _('MODE')),
     ('', 'traceback', None, _('always print a traceback on exception')),
     ('', 'time', None, _('time how long the command takes')),
     ('', 'profile', None, _('print command execution profile')),
     ('', 'version', None, _('output version information and exit')),
     ('h', 'help', None, _('display help and exit')),
 ]
 
 dryrunopts = [('n', 'dry-run', None,
                _('do not perform actions, just print output'))]
 
 remoteopts = [
     ('e', 'ssh', '',
      _('specify ssh command to use'), _('CMD')),
     ('', 'remotecmd', '',
      _('specify hg command to run on the remote side'), _('CMD')),
     ('', 'insecure', None,
      _('do not verify server certificate (ignoring web.cacerts config)')),
 ]
 
 walkopts = [
     ('I', 'include', [],
      _('include names matching the given patterns'), _('PATTERN')),
     ('X', 'exclude', [],
      _('exclude names matching the given patterns'), _('PATTERN')),
 ]
 
 commitopts = [
     ('m', 'message', '',
      _('use text as commit message'), _('TEXT')),
     ('l', 'logfile', '',
      _('read commit message from file'), _('FILE')),
 ]
 
 commitopts2 = [
     ('d', 'date', '',
      _('record the specified date as commit date'), _('DATE')),
     ('u', 'user', '',
      _('record the specified user as committer'), _('USER')),
 ]
 
 templateopts = [
     ('', 'style', '',
      _('display using template map file'), _('STYLE')),
     ('', 'template', '',
      _('display with template'), _('TEMPLATE')),
 ]
 
 logopts = [
     ('p', 'patch', None, _('show patch')),
     ('g', 'git', None, _('use git extended diff format')),
     ('l', 'limit', '',
      _('limit number of changes displayed'), _('NUM')),
     ('M', 'no-merges', None, _('do not show merges')),
     ('', 'stat', None, _('output diffstat-style summary of changes')),
 ] + templateopts
 
 diffopts = [
     ('a', 'text', None, _('treat all files as text')),
     ('g', 'git', None, _('use git extended diff format')),
     ('', 'nodates', None, _('omit dates from diff headers'))
 ]
 
 diffopts2 = [
     ('p', 'show-function', None, _('show which function each change is in')),
     ('', 'reverse', None, _('produce a diff that undoes the changes')),
     ('w', 'ignore-all-space', None,
      _('ignore white space when comparing lines')),
     ('b', 'ignore-space-change', None,
      _('ignore changes in the amount of white space')),
     ('B', 'ignore-blank-lines', None,
      _('ignore changes whose lines are all blank')),
     ('U', 'unified', '',
      _('number of lines of context to show'), _('NUM')),
     ('', 'stat', None, _('output diffstat-style summary of changes')),
 ]
 
 similarityopts = [
     ('s', 'similarity', '',
      _('guess renamed files by similarity (0<=s<=100)'), _('SIMILARITY'))
 ]
 
 subrepoopts = [
     ('S', 'subrepos', None,
      _('recurse into subrepositories'))
 ]
 
 table = {
     "^add": (add, walkopts + subrepoopts + dryrunopts,
              _('[OPTION]... [FILE]...')),
     "addremove":
         (addremove, similarityopts + walkopts + dryrunopts,
          _('[OPTION]... [FILE]...')),
     "^annotate|blame":
         (annotate,
          [('r', 'rev', '',
            _('annotate the specified revision'), _('REV')),
           ('', 'follow', None,
            _('follow copies/renames and list the filename (DEPRECATED)')),
           ('', 'no-follow', None, _("don't follow copies and renames")),
           ('a', 'text', None, _('treat all files as text')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('f', 'file', None, _('list the filename')),
           ('d', 'date', None, _('list the date (short with -q)')),
           ('n', 'number', None, _('list the revision number (default)')),
           ('c', 'changeset', None, _('list the changeset')),
           ('l', 'line-number', None,
            _('show line number at the first appearance'))
          ] + walkopts,
          _('[-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'), _('PREFIX')),
           ('r', 'rev', '',
            _('revision to distribute'), _('REV')),
           ('t', 'type', '',
            _('type of distribution to create'), _('TYPE')),
          ] + subrepoopts + walkopts,
          _('[OPTION]... DEST')),
     "backout":
         (backout,
          [('', 'merge', None,
            _('merge with old dirstate parent after backout')),
           ('', 'parent', '',
            _('parent to choose when backing out merge'), _('REV')),
           ('t', 'tool', '',
            _('specify merge tool')),
           ('r', 'rev', '',
            _('revision to backout'), _('REV')),
          ] + walkopts + commitopts + commitopts2,
          _('[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')),
           ('e', 'extend', False, _('extend the bisect range')),
           ('c', 'command', '',
            _('use command to check changeset state'), _('CMD')),
           ('U', 'noupdate', False, _('do not update to target'))],
          _("[-gbsr] [-U] [-c CMD] [REV]")),
     "bookmarks":
         (bookmark,
          [('f', 'force', False, _('force')),
           ('r', 'rev', '', _('revision'), _('REV')),
           ('d', 'delete', False, _('delete a given bookmark')),
           ('m', 'rename', '', _('rename a given bookmark'), _('NAME'))],
          _('hg bookmarks [-f] [-d] [-m NAME] [-r REV] [NAME]')),
     "branch":
         (branch,
          [('f', 'force', None,
            _('set branch name even if it shadows an existing branch')),
           ('C', 'clean', None, _('reset branch name to parent branch name'))],
          _('[-fC] [NAME]')),
     "branches":
         (branches,
          [('a', 'active', False,
            _('show only branches that have unmerged heads')),
           ('c', 'closed', False,
            _('show normal and closed branches'))],
          _('[-ac]')),
     "bundle":
         (bundle,
          [('f', 'force', None,
            _('run even when the destination is unrelated')),
           ('r', 'rev', [],
            _('a changeset intended to be added to the destination'),
            _('REV')),
           ('b', 'branch', [],
            _('a specific branch you would like to bundle'),
            _('BRANCH')),
           ('', 'base', [],
            _('a base changeset assumed to be available at the destination'),
            _('REV')),
           ('a', 'all', None, _('bundle all changesets in the repository')),
           ('t', 'type', 'bzip2',
            _('bundle compression type to use'), _('TYPE')),
          ] + remoteopts,
          _('[-f] [-t TYPE] [-a] [-r REV]... [--base REV]... FILE [DEST]')),
     "cat":
         (cat,
          [('o', 'output', '',
           _('print output to file with formatted name'), _('FORMAT')),
           ('r', 'rev', '',
            _('print the given revision'), _('REV')),
           ('', 'decode', None, _('apply any matching decode filter')),
          ] + walkopts,
          _('[OPTION]... FILE...')),
     "^clone":
         (clone,
          [('U', 'noupdate', None,
           _('the clone will include an empty working copy (only a repository)')),
           ('u', 'updaterev', '',
            _('revision, tag or branch to check out'), _('REV')),
           ('r', 'rev', [],
            _('include the specified changeset'), _('REV')),
           ('b', 'branch', [],
            _('clone only the specified branch'), _('BRANCH')),
           ('', 'pull', None, _('use pull protocol to copy metadata')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
          ] + remoteopts,
          _('[OPTION]... SOURCE [DEST]')),
     "^commit|ci":
         (commit,
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before committing')),
           ('', 'close-branch', None,
            _('mark a branch as closed, hiding it from the branch list')),
          ] + walkopts + commitopts + commitopts2,
          _('[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,
          _('[OPTION]... [SOURCE]... DEST')),
     "debugancestor": (debugancestor, [], _('[INDEX] REV1 REV2')),
     "debugbuilddag":
         (debugbuilddag,
          [('m', 'mergeable-file', None, _('add single file mergeable changes')),
           ('a', 'appended-file', None, _('add single file all revs append to')),
           ('o', 'overwritten-file', None, _('add single file all revs overwrite')),
           ('n', 'new-file', None, _('add new file at each rev')),
          ],
          _('[OPTION]... TEXT')),
     "debugbundle":
         (debugbundle,
          [('a', 'all', None, _('show all details')),
           ],
          _('FILE')),
     "debugcheckstate": (debugcheckstate, [], ''),
     "debugcommands": (debugcommands, [], _('[COMMAND]')),
     "debugcomplete":
         (debugcomplete,
          [('o', 'options', None, _('show the command options'))],
          _('[-o] CMD')),
     "debugdag":
         (debugdag,
          [('t', 'tags', None, _('use tags as labels')),
           ('b', 'branches', None, _('annotate with branch names')),
           ('', 'dots', None, _('use dots for runs')),
           ('s', 'spaces', None, _('separate elements by spaces')),
          ],
          _('[OPTION]... [FILE [REV]...]')),
     "debugdate":
         (debugdate,
          [('e', 'extended', None, _('try extended date formats'))],
          _('[-e] DATE [RANGE]')),
     "debugdata": (debugdata, [], _('FILE REV')),
     "debugfsinfo": (debugfsinfo, [], _('[PATH]')),
     "debuggetbundle":
         (debuggetbundle,
          [('H', 'head', [], _('id of head node'), _('ID')),
           ('C', 'common', [], _('id of common node'), _('ID')),
           ('t', 'type', 'bzip2', _('bundle compression type to use'), _('TYPE')),
          ],
          _('REPO FILE [-H|-C ID]...')),
     "debugignore": (debugignore, [], ''),
     "debugindex": (debugindex,
                    [('f', 'format', 0, _('revlog format'), _('FORMAT'))],
                    _('FILE')),
     "debugindexdot": (debugindexdot, [], _('FILE')),
     "debuginstall": (debuginstall, [], ''),
     "debugknown": (debugknown, [], _('REPO ID...')),
     "debugpushkey": (debugpushkey, [], _('REPO NAMESPACE [KEY OLD NEW]')),
     "debugrebuildstate":
         (debugrebuildstate,
          [('r', 'rev', '',
            _('revision to rebuild to'), _('REV'))],
          _('[-r REV] [REV]')),
     "debugrename":
         (debugrename,
          [('r', 'rev', '',
            _('revision to debug'), _('REV'))],
          _('[-r REV] FILE')),
     "debugrevspec":
         (debugrevspec, [], ('REVSPEC')),
     "debugsetparents":
         (debugsetparents, [], _('REV1 [REV2]')),
     "debugstate":
         (debugstate,
          [('', 'nodates', None, _('do not display the saved mtime')),
           ('', 'datesort', None, _('sort by saved mtime'))],
          _('[OPTION]...')),
     "debugsub":
         (debugsub,
          [('r', 'rev', '',
            _('revision to check'), _('REV'))],
          _('[-r REV] [REV]')),
     "debugwalk": (debugwalk, walkopts, _('[OPTION]... [FILE]...')),
     "debugwireargs":
         (debugwireargs,
          [('', 'three', '', 'three'),
           ('', 'four', '', 'four'),
           ('', 'five', '', 'five'),
           ] + remoteopts,
          _('REPO [OPTIONS]... [ONE [TWO]]')),
     "^diff":
         (diff,
          [('r', 'rev', [],
            _('revision'), _('REV')),
           ('c', 'change', '',
            _('change made by revision'), _('REV'))
          ] + diffopts + diffopts2 + walkopts + subrepoopts,
          _('[OPTION]... ([-c REV] | [-r REV1 [-r REV2]]) [FILE]...')),
     "^export":
         (export,
          [('o', 'output', '',
            _('print output to file with formatted name'), _('FORMAT')),
           ('', 'switch-parent', None, _('diff against the second parent')),
           ('r', 'rev', [],
            _('revisions to export'), _('REV')),
           ] + diffopts,
          _('[OPTION]... [-o OUTFILESPEC] REV...')),
     "^forget":
         (forget,
          [] + walkopts,
          _('[OPTION]... FILE...')),
     "grep":
         (grep,
          [('0', 'print0', None, _('end fields with NUL')),
           ('', 'all', None, _('print all revisions that match')),
           ('a', 'text', None, _('treat all files as text')),
           ('f', 'follow', None,
            _('follow changeset history,'
              ' or file history across copies and renames')),
           ('i', 'ignore-case', None, _('ignore case when matching')),
           ('l', 'files-with-matches', None,
            _('print only filenames and revisions that match')),
           ('n', 'line-number', None, _('print matching line numbers')),
           ('r', 'rev', [],
            _('only search files changed within revision range'), _('REV')),
           ('u', 'user', None, _('list the author (long with -v)')),
           ('d', 'date', None, _('list the date (short with -q)')),
          ] + walkopts,
          _('[OPTION]... PATTERN [FILE]...')),
     "heads":
         (heads,
          [('r', 'rev', '',
            _('show only heads which are descendants of STARTREV'),
            _('STARTREV')),
           ('t', 'topo', False, _('show topological heads only')),
           ('a', 'active', False,
            _('show active branchheads only (DEPRECATED)')),
           ('c', 'closed', False,
            _('show normal and closed branch heads')),
          ] + templateopts,
          _('[-ac] [-r STARTREV] [REV]...')),
     "help": (help_, [], _('[TOPIC]')),
     "identify|id":
         (identify,
          [('r', 'rev', '',
            _('identify the specified revision'), _('REV')),
           ('n', 'num', None, _('show local revision number')),
           ('i', 'id', None, _('show global revision id')),
           ('b', 'branch', None, _('show branch')),
           ('t', 'tags', None, _('show tags')),
           ('B', 'bookmarks', None, _('show bookmarks'))],
          _('[-nibtB] [-r REV] [SOURCE]')),
     "import|patch":
         (import_,
          [('p', 'strip', 1,
            _('directory strip option for patch. This has the same '
              'meaning as the corresponding patch option'),
            _('NUM')),
           ('b', 'base', '',
            _('base path'), _('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 + similarityopts,
          _('[OPTION]... PATCH...')),
     "incoming|in":
         (incoming,
          [('f', 'force', None,
            _('run even if remote repository is unrelated')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('', 'bundle', '',
            _('file to store the bundles into'), _('FILE')),
           ('r', 'rev', [],
            _('a remote changeset intended to be added'), _('REV')),
           ('B', 'bookmarks', False, _("compare bookmarks")),
           ('b', 'branch', [],
            _('a specific branch you would like to pull'), _('BRANCH')),
          ] + logopts + remoteopts + subrepoopts,
          _('[-p] [-n] [-M] [-f] [-r REV]...'
            ' [--bundle FILENAME] [SOURCE]')),
     "^init":
         (init,
          remoteopts,
          _('[-e CMD] [--remotecmd CMD] [DEST]')),
     "locate":
         (locate,
          [('r', 'rev', '',
            _('search the repository as it is in REV'), _('REV')),
           ('0', 'print0', None,
            _('end filenames with NUL, for use with xargs')),
           ('f', 'fullpath', None,
            _('print complete paths from the filesystem root')),
          ] + walkopts,
          _('[OPTION]... [PATTERN]...')),
     "^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 revisions matching date spec'), _('DATE')),
           ('C', 'copies', None, _('show copied files')),
           ('k', 'keyword', [],
            _('do case-insensitive search for a given text'), _('TEXT')),
           ('r', 'rev', [],
            _('show the specified revision or range'), _('REV')),
           ('', 'removed', None, _('include revisions where files were removed')),
           ('m', 'only-merges', None, _('show only merges')),
           ('u', 'user', [],
            _('revisions committed by user'), _('USER')),
           ('', 'only-branch', [],
            _('show only changesets within the given named branch (DEPRECATED)'),
            _('BRANCH')),
           ('b', 'branch', [],
            _('show changesets within the given named branch'), _('BRANCH')),
           ('P', 'prune', [],
            _('do not display revision or any of its ancestors'), _('REV')),
          ] + logopts + walkopts,
          _('[OPTION]... [FILE]')),
     "manifest":
         (manifest,
          [('r', 'rev', '',
            _('revision to display'), _('REV'))],
          _('[-r REV]')),
     "^merge":
         (merge,
          [('f', 'force', None, _('force a merge with outstanding changes')),
           ('t', 'tool', '', _('specify merge tool')),
           ('r', 'rev', '',
            _('revision to merge'), _('REV')),
           ('P', 'preview', None,
            _('review revisions to merge (no merge is performed)'))],
          _('[-P] [-f] [[-r] REV]')),
     "outgoing|out":
         (outgoing,
          [('f', 'force', None,
            _('run even when the destination is unrelated')),
           ('r', 'rev', [],
            _('a changeset intended to be included in the destination'),
            _('REV')),
           ('n', 'newest-first', None, _('show newest record first')),
           ('B', 'bookmarks', False, _("compare bookmarks")),
           ('b', 'branch', [],
            _('a specific branch you would like to push'), _('BRANCH')),
          ] + logopts + remoteopts + subrepoopts,
          _('[-M] [-p] [-n] [-f] [-r REV]... [DEST]')),
     "parents":
         (parents,
          [('r', 'rev', '',
            _('show parents of the specified revision'), _('REV')),
          ] + templateopts,
          _('[-r REV] [FILE]')),
     "paths": (paths, [], _('[NAME]')),
     "^pull":
         (pull,
          [('u', 'update', None,
            _('update to new branch head if changesets were pulled')),
           ('f', 'force', None,
            _('run even when remote repository is unrelated')),
           ('r', 'rev', [],
            _('a remote changeset intended to be added'), _('REV')),
           ('B', 'bookmark', [], _("bookmark to pull"), _('BOOKMARK')),
           ('b', 'branch', [],
            _('a specific branch you would like to pull'), _('BRANCH')),
          ] + remoteopts,
          _('[-u] [-f] [-r REV]... [-e CMD] [--remotecmd CMD] [SOURCE]')),
     "^push":
         (push,
          [('f', 'force', None, _('force push')),
           ('r', 'rev', [],
            _('a changeset intended to be included in the destination'),
            _('REV')),
           ('B', 'bookmark', [], _("bookmark to push"), _('BOOKMARK')),
           ('b', 'branch', [],
            _('a specific branch you would like to push'), _('BRANCH')),
           ('', 'new-branch', False, _('allow pushing a new branch')),
          ] + remoteopts,
          _('[-f] [-r REV]... [-e CMD] [--remotecmd CMD] [DEST]')),
     "recover": (recover, []),
     "^remove|rm":
         (remove,
          [('A', 'after', None, _('record delete for missing files')),
           ('f', 'force', None,
            _('remove (and delete) file even if added or modified')),
          ] + walkopts,
          _('[OPTION]... FILE...')),
     "rename|move|mv":
         (rename,
          [('A', 'after', None, _('record a rename that has already occurred')),
           ('f', 'force', None,
            _('forcibly copy over an existing managed file')),
          ] + walkopts + dryrunopts,
          _('[OPTION]... SOURCE... DEST')),
     "resolve":
         (resolve,
          [('a', 'all', None, _('select all unresolved files')),
           ('l', 'list', None, _('list state of files needing merge')),
           ('m', 'mark', None, _('mark files as resolved')),
           ('u', 'unmark', None, _('mark files as unresolved')),
           ('t', 'tool', '', _('specify merge tool')),
           ('n', 'no-status', None, _('hide status prefix'))]
           + walkopts,
           _('[OPTION]... [FILE]...')),
     "revert":
         (revert,
          [('a', 'all', None, _('revert all changes when no arguments given')),
           ('d', 'date', '',
            _('tipmost revision matching date'), _('DATE')),
           ('r', 'rev', '',
            _('revert to the specified revision'), _('REV')),
           ('', 'no-backup', None, _('do not save backup copies of files')),
          ] + walkopts + dryrunopts,
          _('[OPTION]... [-r REV] [NAME]...')),
     "rollback": (rollback, dryrunopts),
     "root": (root, []),
     "^serve":
         (serve,
          [('A', 'accesslog', '',
            _('name of access log file to write to'), _('FILE')),
           ('d', 'daemon', None, _('run server in background')),
           ('', 'daemon-pipefds', '',
            _('used internally by daemon mode'), _('NUM')),
           ('E', 'errorlog', '',
            _('name of error log file to write to'), _('FILE')),
           # use string type, then we can check if something was passed
           ('p', 'port', '',
            _('port to listen on (default: 8000)'), _('PORT')),
           ('a', 'address', '',
            _('address to listen on (default: all interfaces)'), _('ADDR')),
           ('', 'prefix', '',
            _('prefix path to serve from (default: server root)'), _('PREFIX')),
           ('n', 'name', '',
            _('name to show in web pages (default: working directory)'),
            _('NAME')),
           ('', 'web-conf', '',
            _('name of the hgweb config file (see "hg help hgweb")'),
            _('FILE')),
           ('', 'webdir-conf', '',
            _('name of the hgweb config file (DEPRECATED)'), _('FILE')),
           ('', 'pid-file', '',
            _('name of file to write process ID to'), _('FILE')),
           ('', 'stdio', None, _('for remote clients')),
           ('t', 'templates', '',
            _('web templates to use'), _('TEMPLATE')),
           ('', 'style', '',
            _('template style to use'), _('STYLE')),
           ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
           ('', 'certificate', '',
            _('SSL certificate file'), _('FILE'))],
          _('[OPTION]...')),
     "showconfig|debugconfig":
         (showconfig,
          [('u', 'untrusted', None, _('show untrusted configuration options'))],
          _('[-u] [NAME]...')),
     "^summary|sum":
         (summary,
          [('', 'remote', None, _('check for push and pull'))], '[--remote]'),
     "^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'), _('REV')),
           ('', 'change', '',
            _('list the changed files of a revision'), _('REV')),
          ] + walkopts + subrepoopts,
          _('[OPTION]... [FILE]...')),
     "tag":
         (tag,
          [('f', 'force', None, _('force tag')),
           ('l', 'local', None, _('make the tag local')),
           ('r', 'rev', '',
            _('revision to tag'), _('REV')),
           ('', 'remove', None, _('remove a tag')),
           # -l/--local is already there, commitopts cannot be used
           ('e', 'edit', None, _('edit commit message')),
           ('m', 'message', '',
            _('use <text> as commit message'), _('TEXT')),
          ] + commitopts2,
          _('[-f] [-l] [-m TEXT] [-d DATE] [-u USER] [-r REV] NAME...')),
     "tags": (tags, [], ''),
     "tip":
         (tip,
          [('p', 'patch', None, _('show patch')),
           ('g', 'git', None, _('use git extended diff format')),
          ] + templateopts,
          _('[-p] [-g]')),
     "unbundle":
         (unbundle,
          [('u', 'update', None,
            _('update to new branch head if changesets were unbundled'))],
          _('[-u] FILE...')),
     "^update|up|checkout|co":
         (update,
          [('C', 'clean', None, _('discard uncommitted changes (no backup)')),
           ('c', 'check', None,
            _('update across branches if no uncommitted changes')),
           ('d', 'date', '',
            _('tipmost revision matching date'), _('DATE')),
           ('r', 'rev', '',
            _('revision'), _('REV'))],
          _('[-c] [-C] [-d DATE] [[-r] REV]')),
     "verify": (verify, []),
     "version": (version_, []),
 }
 
 norepo = ("clone init version help debugcommands debugcomplete"
           " debugdate debuginstall debugfsinfo debugpushkey debugwireargs"
           " debugknown debuggetbundle debugbundle")
 optionalrepo = ("identify paths serve showconfig debugancestor debugdag"
                 " debugdata debugindex debugindexdot")

mercurial/discovery.py

@@ -1,324 +1,288
 # discovery.py - protocol changeset discovery functions
 #
 # Copyright 2010 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from node import nullid, short
 from i18n import _
 import util, error
 
-def findcommonincoming(repo, remote, heads=None, force=False, commononly=False):
-    """Return a tuple (common, missing, heads) used to identify missing nodes
-    from remote. "missing" is either a boolean indicating if any nodes are missing
-    (when commononly=True), or else a list of the root nodes of the missing set.
+def findcommonincoming(repo, remote, heads=None, force=False):
+    """Return a tuple (common, anyincoming, heads) used to identify the common
+    subset of nodes between repo and remote.
 
-    If a list of heads is specified, return only nodes which are heads
-    or ancestors of these heads.
+    "common" is a list of (at least) the heads of the common subset.
+    "anyincoming" is testable as a boolean indicating if any nodes are missing
+      locally. If remote does not support getbundle, this actually is a list of
+      roots of the nodes that would be incoming, to be supplied to
+      changegroupsubset. No code except for pull should be relying on this fact
+      any longer.
+    "heads" is either the supplied heads, or else the remote's heads.
     """
+
     m = repo.changelog.nodemap
     search = []
     fetch = set()
     seen = set()
     seenbranch = set()
     base = set()
 
     if not heads:
         heads = remote.heads()
 
     if repo.changelog.tip() == nullid:
         base.add(nullid)
         if heads != [nullid]:
             return [nullid], [nullid], list(heads)
         return [nullid], [], []
 
     # assume we're closer to the tip than the root
     # and start by examining the heads
     repo.ui.status(_("searching for changes\n"))
 
-    if commononly:
+    if remote.capable('getbundle'):
         myheads = repo.heads()
         known = remote.known(myheads)
         if util.all(known):
             hasincoming = set(heads).difference(set(myheads)) and True
             return myheads, hasincoming, heads
 
     unknown = []
     for h in heads:
         if h not in m:
             unknown.append(h)
         else:
             base.add(h)
 
     heads = unknown
     if not unknown:
         return list(base), [], []
 
     req = set(unknown)
     reqcnt = 0
 
     # search through remote branches
     # a 'branch' here is a linear segment of history, with four parts:
     # head, root, first parent, second parent
     # (a branch always has two parents (or none) by definition)
     unknown = remote.branches(unknown)
     while unknown:
         r = []
         while unknown:
             n = unknown.pop(0)
             if n[0] in seen:
                 continue
 
             repo.ui.debug("examining %s:%s\n"
                           % (short(n[0]), short(n[1])))
             if n[0] == nullid: # found the end of the branch
                 pass
             elif n in seenbranch:
                 repo.ui.debug("branch already found\n")
                 continue
             elif n[1] and n[1] in m: # do we know the base?
                 repo.ui.debug("found incomplete branch %s:%s\n"
                               % (short(n[0]), short(n[1])))
                 search.append(n[0:2]) # schedule branch range for scanning
                 seenbranch.add(n)
             else:
                 if n[1] not in seen and n[1] not in fetch:
                     if n[2] in m and n[3] in m:
                         repo.ui.debug("found new changeset %s\n" %
                                       short(n[1]))
                         fetch.add(n[1]) # earliest unknown
                     for p in n[2:4]:
                         if p in m:
                             base.add(p) # latest known
 
                 for p in n[2:4]:
                     if p not in req and p not in m:
                         r.append(p)
                         req.add(p)
             seen.add(n[0])
 
         if r:
             reqcnt += 1
             repo.ui.progress(_('searching'), reqcnt, unit=_('queries'))
             repo.ui.debug("request %d: %s\n" %
                         (reqcnt, " ".join(map(short, r))))
             for p in xrange(0, len(r), 10):
                 for b in remote.branches(r[p:p + 10]):
                     repo.ui.debug("received %s:%s\n" %
                                   (short(b[0]), short(b[1])))
                     unknown.append(b)
 
     # do binary search on the branches we found
     while search:
         newsearch = []
         reqcnt += 1
         repo.ui.progress(_('searching'), reqcnt, unit=_('queries'))
         for n, l in zip(search, remote.between(search)):
             l.append(n[1])
             p = n[0]
             f = 1
             for i in l:
                 repo.ui.debug("narrowing %d:%d %s\n" % (f, len(l), short(i)))
                 if i in m:
                     if f <= 2:
                         repo.ui.debug("found new branch changeset %s\n" %
                                           short(p))
                         fetch.add(p)
                         base.add(i)
                     else:
                         repo.ui.debug("narrowed branch search to %s:%s\n"
                                       % (short(p), short(i)))
                         newsearch.append((p, i))
                     break
                 p, f = i, f * 2
             search = newsearch
 
     # sanity check our fetch list
     for f in fetch:
         if f in m:
             raise error.RepoError(_("already have changeset ")
                                   + short(f[:4]))
 
     base = list(base)
     if base == [nullid]:
         if force:
             repo.ui.warn(_("warning: repository is unrelated\n"))
         else:
             raise util.Abort(_("repository is unrelated"))
 
     repo.ui.debug("found new changesets starting at " +
                  " ".join([short(f) for f in fetch]) + "\n")
 
     repo.ui.progress(_('searching'), None)
     repo.ui.debug("%d total queries\n" % reqcnt)
 
     return base, list(fetch), heads
 
-def findoutgoing(repo, remote, base=None, remoteheads=None, force=False):
-    """Return list of nodes that are roots of subsets not in remote
-
-    If base dict is specified, assume that these nodes and their parents
-    exist on the remote side.
-    If remotehead is specified, assume it is the list of the heads from
-    the remote repository.
-    """
-    if base is None:
-        base = findcommonincoming(repo, remote, heads=remoteheads,
-                                  force=force)[0]
-    else:
-        base = list(base)
-
-    repo.ui.debug("common changesets up to "
-                  + " ".join(map(short, base)) + "\n")
-
-    remain = set(repo.changelog.nodemap)
-
-    # prune everything remote has from the tree
-    remain.remove(nullid)
-    remove = base
-    while remove:
-        n = remove.pop(0)
-        if n in remain:
-            remain.remove(n)
-            for p in repo.changelog.parents(n):
-                remove.append(p)
-
-    # find every node whose parents have been pruned
-    subset = []
-    # find every remote head that will get new children
-    for n in remain:
-        p1, p2 = repo.changelog.parents(n)
-        if p1 not in remain and p2 not in remain:
-            subset.append(n)
-
-    return subset
-
 def prepush(repo, remote, force, revs, newbranch):
     '''Analyze the local and remote repositories and determine which
     changesets need to be pushed to the remote. Return value depends
     on circumstances:
 
     If we are not going to push anything, return a tuple (None,
     outgoing) where outgoing is 0 if there are no outgoing
     changesets and 1 if there are, but we refuse to push them
     (e.g. would create new remote heads).
 
     Otherwise, return a tuple (changegroup, remoteheads), where
     changegroup is a readable file-like object whose read() returns
     successive changegroup chunks ready to be sent over the wire and
     remoteheads is the list of remote heads.'''
     remoteheads = remote.heads()
-    common, inc, rheads = findcommonincoming(repo, remote, heads=remoteheads,
-                                             force=force)
+    common, inc, _rheads = findcommonincoming(repo, remote, heads=remoteheads,
+                                              force=force)
 
     cl = repo.changelog
-    update = findoutgoing(repo, remote, common, remoteheads)
-    outg, bases, heads = cl.nodesbetween(update, revs)
+    outg = cl.findmissing(common, revs)
 
-    if not bases:
+    if not outg:
         repo.ui.status(_("no changes found\n"))
         return None, 1
 
     if not force and remoteheads != [nullid]:
         if remote.capable('branchmap'):
             # Check for each named branch if we're creating new remote heads.
             # To be a remote head after push, node must be either:
             # - unknown locally
             # - a local outgoing head descended from update
             # - a remote head that's known locally and not
             #   ancestral to an outgoing head
 
             # 1. Create set of branches involved in the push.
             branches = set(repo[n].branch() for n in outg)
 
             # 2. Check for new branches on the remote.
             remotemap = remote.branchmap()
             newbranches = branches - set(remotemap)
             if newbranches and not newbranch: # new branch requires --new-branch
                 branchnames = ', '.join(sorted(newbranches))
                 raise util.Abort(_("push creates new remote branches: %s!")
                                    % branchnames,
                                  hint=_("use 'hg push --new-branch' to create"
                                         " new remote branches"))
             branches.difference_update(newbranches)
 
             # 3. Construct the initial oldmap and newmap dicts.
             # They contain information about the remote heads before and
             # after the push, respectively.
             # Heads not found locally are not included in either dict,
             # since they won't be affected by the push.
             # unsynced contains all branches with incoming changesets.
             oldmap = {}
             newmap = {}
             unsynced = set()
             for branch in branches:
                 remotebrheads = remotemap[branch]
                 prunedbrheads = [h for h in remotebrheads if h in cl.nodemap]
                 oldmap[branch] = prunedbrheads
                 newmap[branch] = list(prunedbrheads)
                 if len(remotebrheads) > len(prunedbrheads):
                     unsynced.add(branch)
 
             # 4. Update newmap with outgoing changes.
             # This will possibly add new heads and remove existing ones.
             ctxgen = (repo[n] for n in outg)
             repo._updatebranchcache(newmap, ctxgen)
 
         else:
             # 1-4b. old servers: Check for new topological heads.
             # Construct {old,new}map with branch = None (topological branch).
             # (code based on _updatebranchcache)
             oldheads = set(h for h in remoteheads if h in cl.nodemap)
             newheads = oldheads.union(outg)
             if len(newheads) > 1:
                 for latest in reversed(outg):
                     if latest not in newheads:
                         continue
                     minhrev = min(cl.rev(h) for h in newheads)
                     reachable = cl.reachable(latest, cl.node(minhrev))
                     reachable.remove(latest)
                     newheads.difference_update(reachable)
             branches = set([None])
             newmap = {None: newheads}
             oldmap = {None: oldheads}
             unsynced = inc and branches or set()
 
         # 5. Check for new heads.
         # If there are more heads after the push than before, a suitable
         # error message, depending on unsynced status, is displayed.
         error = None
         for branch in branches:
             newhs = set(newmap[branch])
             oldhs = set(oldmap[branch])
             if len(newhs) > len(oldhs):
                 if error is None:
                     if branch:
                         error = _("push creates new remote heads "
                                   "on branch '%s'!") % branch
                     else:
                         error = _("push creates new remote heads!")
                     if branch in unsynced:
                         hint = _("you should pull and merge or "
                                  "use push -f to force")
                     else:
                         hint = _("did you forget to merge? "
                                  "use push -f to force")
                 if branch:
                     repo.ui.debug("new remote heads on branch '%s'\n" % branch)
                 for h in (newhs - oldhs):
                     repo.ui.debug("new remote head %s\n" % short(h))
         if error:
             raise util.Abort(error, hint=hint)
 
         # 6. Check for unsynced changes on involved branches.
         if unsynced:
             repo.ui.warn(_("note: unsynced remote changes!\n"))
 
     if revs is None:
         # use the fast path, no race possible on push
-        nodes = repo.changelog.findmissing(common)
-        cg = repo._changegroup(nodes, 'push')
+        cg = repo._changegroup(outg, 'push')
     else:
-        cg = repo.changegroupsubset(update, revs, 'push')
+        cg = repo.getbundle('push', heads=revs, common=common)
     return cg, remoteheads

mercurial/hg.py

@@ -1,564 +1,560
 # hg.py - repository classes for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 # Copyright 2006 Vadim Gelfer <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from i18n import _
 from lock import release
 from node import hex, nullid
 import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo, bookmarks
 import lock, util, extensions, error, node
 import cmdutil, discovery, url
 import merge as mergemod
 import verify as verifymod
 import errno, os, shutil
 
 def _local(path):
     path = util.expandpath(url.localpath(path))
     return (os.path.isfile(path) and bundlerepo or localrepo)
 
 def addbranchrevs(lrepo, repo, branches, revs):
     hashbranch, branches = branches
     if not hashbranch and not branches:
         return revs or None, revs and revs[0] or None
     revs = revs and list(revs) or []
     if not repo.capable('branchmap'):
         if branches:
             raise util.Abort(_("remote branch lookup not supported"))
         revs.append(hashbranch)
         return revs, revs[0]
     branchmap = repo.branchmap()
 
     def primary(branch):
         if branch == '.':
             if not lrepo or not lrepo.local():
                 raise util.Abort(_("dirstate branch not accessible"))
             branch = lrepo.dirstate.branch()
         if branch in branchmap:
             revs.extend(node.hex(r) for r in reversed(branchmap[branch]))
             return True
         else:
             return False
 
     for branch in branches:
         if not primary(branch):
             raise error.RepoLookupError(_("unknown branch '%s'") % branch)
     if hashbranch:
         if not primary(hashbranch):
             revs.append(hashbranch)
     return revs, revs[0]
 
 def parseurl(path, branches=None):
     '''parse url#branch, returning (url, (branch, branches))'''
 
     u = url.url(path)
     branch = None
     if u.fragment:
         branch = u.fragment
         u.fragment = None
     return str(u), (branch, branches or [])
 
 schemes = {
     'bundle': bundlerepo,
     'file': _local,
     'http': httprepo,
     'https': httprepo,
     'ssh': sshrepo,
     'static-http': statichttprepo,
 }
 
 def _lookup(path):
     u = url.url(path)
     scheme = u.scheme or 'file'
     thing = schemes.get(scheme) or schemes['file']
     try:
         return thing(path)
     except TypeError:
         return thing
 
 def islocal(repo):
     '''return true if repo or path is local'''
     if isinstance(repo, str):
         try:
             return _lookup(repo).islocal(repo)
         except AttributeError:
             return False
     return repo.local()
 
 def repository(ui, path='', create=False):
     """return a repository object for the specified path"""
     repo = _lookup(path).instance(ui, path, create)
     ui = getattr(repo, "ui", ui)
     for name, module in extensions.extensions():
         hook = getattr(module, 'reposetup', None)
         if hook:
             hook(ui, repo)
     return repo
 
 def defaultdest(source):
     '''return default destination of clone if none is given'''
     return os.path.basename(os.path.normpath(source))
 
 def share(ui, source, dest=None, update=True):
     '''create a shared repository'''
 
     if not islocal(source):
         raise util.Abort(_('can only share local repositories'))
 
     if not dest:
         dest = defaultdest(source)
     else:
         dest = ui.expandpath(dest)
 
     if isinstance(source, str):
         origsource = ui.expandpath(source)
         source, branches = parseurl(origsource)
         srcrepo = repository(ui, source)
         rev, checkout = addbranchrevs(srcrepo, srcrepo, branches, None)
     else:
         srcrepo = source
         origsource = source = srcrepo.url()
         checkout = None
 
     sharedpath = srcrepo.sharedpath # if our source is already sharing
 
     root = os.path.realpath(dest)
     roothg = os.path.join(root, '.hg')
 
     if os.path.exists(roothg):
         raise util.Abort(_('destination already exists'))
 
     if not os.path.isdir(root):
         os.mkdir(root)
     util.makedir(roothg, notindexed=True)
 
     requirements = ''
     try:
         requirements = srcrepo.opener('requires').read()
     except IOError, inst:
         if inst.errno != errno.ENOENT:
             raise
 
     requirements += 'shared\n'
     file(os.path.join(roothg, 'requires'), 'w').write(requirements)
     file(os.path.join(roothg, 'sharedpath'), 'w').write(sharedpath)
 
     default = srcrepo.ui.config('paths', 'default')
     if default:
         f = file(os.path.join(roothg, 'hgrc'), 'w')
         f.write('[paths]\ndefault = %s\n' % default)
         f.close()
 
     r = repository(ui, root)
 
     if update:
         r.ui.status(_("updating working directory\n"))
         if update is not True:
             checkout = update
         for test in (checkout, 'default', 'tip'):
             if test is None:
                 continue
             try:
                 uprev = r.lookup(test)
                 break
             except error.RepoLookupError:
                 continue
         _update(r, uprev)
 
 def clone(ui, source, dest=None, pull=False, rev=None, update=True,
           stream=False, branch=None):
     """Make a copy of an existing repository.
 
     Create a copy of an existing repository in a new directory.  The
     source and destination are URLs, as passed to the repository
     function.  Returns a pair of repository objects, the source and
     newly created destination.
 
     The location of the source is added to the new repository's
     .hg/hgrc file, as the default to be used for future pulls and
     pushes.
 
     If an exception is raised, the partly cloned/updated destination
     repository will be deleted.
 
     Arguments:
 
     source: repository object or URL
 
     dest: URL of destination repository to create (defaults to base
     name of source repository)
 
     pull: always pull from source repository, even in local case
 
     stream: stream raw data uncompressed from repository (fast over
     LAN, slow over WAN)
 
     rev: revision to clone up to (implies pull=True)
 
     update: update working directory after clone completes, if
     destination is local repository (True means update to default rev,
     anything else is treated as a revision)
 
     branch: branches to clone
     """
 
     if isinstance(source, str):
         origsource = ui.expandpath(source)
         source, branch = parseurl(origsource, branch)
         src_repo = repository(ui, source)
     else:
         src_repo = source
         branch = (None, branch or [])
         origsource = source = src_repo.url()
     rev, checkout = addbranchrevs(src_repo, src_repo, branch, rev)
 
     if dest is None:
         dest = defaultdest(source)
         ui.status(_("destination directory: %s\n") % dest)
     else:
         dest = ui.expandpath(dest)
 
     dest = url.localpath(dest)
     source = url.localpath(source)
 
     if os.path.exists(dest):
         if not os.path.isdir(dest):
             raise util.Abort(_("destination '%s' already exists") % dest)
         elif os.listdir(dest):
             raise util.Abort(_("destination '%s' is not empty") % dest)
 
     class DirCleanup(object):
         def __init__(self, dir_):
             self.rmtree = shutil.rmtree
             self.dir_ = dir_
         def close(self):
             self.dir_ = None
         def cleanup(self):
             if self.dir_:
                 self.rmtree(self.dir_, True)
 
     src_lock = dest_lock = dir_cleanup = None
     try:
         if islocal(dest):
             dir_cleanup = DirCleanup(dest)
 
         abspath = origsource
         copy = False
         if src_repo.cancopy() and islocal(dest):
             abspath = os.path.abspath(url.localpath(origsource))
             copy = not pull and not rev
 
         if copy:
             try:
                 # we use a lock here because if we race with commit, we
                 # can end up with extra data in the cloned revlogs that's
                 # not pointed to by changesets, thus causing verify to
                 # fail
                 src_lock = src_repo.lock(wait=False)
             except error.LockError:
                 copy = False
 
         if copy:
             src_repo.hook('preoutgoing', throw=True, source='clone')
             hgdir = os.path.realpath(os.path.join(dest, ".hg"))
             if not os.path.exists(dest):
                 os.mkdir(dest)
             else:
                 # only clean up directories we create ourselves
                 dir_cleanup.dir_ = hgdir
             try:
                 dest_path = hgdir
                 util.makedir(dest_path, notindexed=True)
             except OSError, inst:
                 if inst.errno == errno.EEXIST:
                     dir_cleanup.close()
                     raise util.Abort(_("destination '%s' already exists")
                                      % dest)
                 raise
 
             hardlink = None
             num = 0
             for f in src_repo.store.copylist():
                 src = os.path.join(src_repo.sharedpath, f)
                 dst = os.path.join(dest_path, f)
                 dstbase = os.path.dirname(dst)
                 if dstbase and not os.path.exists(dstbase):
                     os.mkdir(dstbase)
                 if os.path.exists(src):
                     if dst.endswith('data'):
                         # lock to avoid premature writing to the target
                         dest_lock = lock.lock(os.path.join(dstbase, "lock"))
                     hardlink, n = util.copyfiles(src, dst, hardlink)
                     num += n
             if hardlink:
                 ui.debug("linked %d files\n" % num)
             else:
                 ui.debug("copied %d files\n" % num)
 
             # we need to re-init the repo after manually copying the data
             # into it
             dest_repo = repository(ui, dest)
             src_repo.hook('outgoing', source='clone',
                           node=node.hex(node.nullid))
         else:
             try:
                 dest_repo = repository(ui, dest, create=True)
             except OSError, inst:
                 if inst.errno == errno.EEXIST:
                     dir_cleanup.close()
                     raise util.Abort(_("destination '%s' already exists")
                                      % dest)
                 raise
 
             revs = None
             if rev:
                 if 'lookup' not in src_repo.capabilities:
                     raise util.Abort(_("src repository does not support "
                                        "revision lookup and so doesn't "
                                        "support clone by revision"))
                 revs = [src_repo.lookup(r) for r in rev]
                 checkout = revs[0]
             if dest_repo.local():
                 dest_repo.clone(src_repo, heads=revs, stream=stream)
             elif src_repo.local():
                 src_repo.push(dest_repo, revs=revs)
             else:
                 raise util.Abort(_("clone from remote to remote not supported"))
 
         if dir_cleanup:
             dir_cleanup.close()
 
         if dest_repo.local():
             fp = dest_repo.opener("hgrc", "w", text=True)
             fp.write("[paths]\n")
             fp.write("default = %s\n" % abspath)
             fp.close()
 
             dest_repo.ui.setconfig('paths', 'default', abspath)
 
             if update:
                 if update is not True:
                     checkout = update
                     if src_repo.local():
                         checkout = src_repo.lookup(update)
                 for test in (checkout, 'default', 'tip'):
                     if test is None:
                         continue
                     try:
                         uprev = dest_repo.lookup(test)
                         break
                     except error.RepoLookupError:
                         continue
                 bn = dest_repo[uprev].branch()
                 dest_repo.ui.status(_("updating to branch %s\n") % bn)
                 _update(dest_repo, uprev)
 
         # clone all bookmarks
         if dest_repo.local() and src_repo.capable("pushkey"):
             rb = src_repo.listkeys('bookmarks')
             for k, n in rb.iteritems():
                 try:
                     m = dest_repo.lookup(n)
                     dest_repo._bookmarks[k] = m
                 except error.RepoLookupError:
                     pass
             if rb:
                 bookmarks.write(dest_repo)
         elif src_repo.local() and dest_repo.capable("pushkey"):
             for k, n in src_repo._bookmarks.iteritems():
                 dest_repo.pushkey('bookmarks', k, '', hex(n))
 
         return src_repo, dest_repo
     finally:
         release(src_lock, dest_lock)
         if dir_cleanup is not None:
             dir_cleanup.cleanup()
 
 def _showstats(repo, stats):
     repo.ui.status(_("%d files updated, %d files merged, "
                      "%d files removed, %d files unresolved\n") % stats)
 
 def update(repo, node):
     """update the working directory to node, merging linear changes"""
     stats = mergemod.update(repo, node, False, False, None)
     _showstats(repo, stats)
     if stats[3]:
         repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n"))
     return stats[3] > 0
 
 # naming conflict in clone()
 _update = update
 
 def clean(repo, node, show_stats=True):
     """forcibly switch the working directory to node, clobbering changes"""
     stats = mergemod.update(repo, node, False, True, None)
     if show_stats:
         _showstats(repo, stats)
     return stats[3] > 0
 
 def merge(repo, node, force=None, remind=True):
     """Branch merge with node, resolving changes. Return true if any
     unresolved conflicts."""
     stats = mergemod.update(repo, node, True, force, False)
     _showstats(repo, stats)
     if stats[3]:
         repo.ui.status(_("use 'hg resolve' to retry unresolved file merges "
                          "or 'hg update -C .' to abandon\n"))
     elif remind:
         repo.ui.status(_("(branch merge, don't forget to commit)\n"))
     return stats[3] > 0
 
 def _incoming(displaychlist, subreporecurse, ui, repo, source,
         opts, buffered=False):
     """
     Helper for incoming / gincoming.
     displaychlist gets called with
         (remoterepo, incomingchangesetlist, displayer) parameters,
     and is supposed to contain only code that can't be unified.
     """
     source, branches = parseurl(ui.expandpath(source), opts.get('branch'))
     other = repository(remoteui(repo, opts), source)
     ui.status(_('comparing with %s\n') % url.hidepassword(source))
     revs, checkout = addbranchrevs(repo, other, branches, opts.get('rev'))
 
     if revs:
         revs = [other.lookup(rev) for rev in revs]
-    usecommon = other.capable('getbundle')
-    other, common, incoming, bundle = bundlerepo.getremotechanges(ui, repo, other,
-                                       revs, opts["bundle"], opts["force"],
-                                       usecommon=usecommon)
-    if not incoming:
+    other, common, anyinc, bundle = bundlerepo.getremotechanges(ui, repo, other,
+                                     revs, opts["bundle"], opts["force"])
+    if not anyinc:
         ui.status(_("no changes found\n"))
         return subreporecurse()
 
     try:
-        if usecommon:
-            chlist = other.changelog.findmissing(common, revs)
-        else:
-            chlist = other.changelog.nodesbetween(incoming, revs)[0]
+        chlist = other.changelog.findmissing(common, revs)
         displayer = cmdutil.show_changeset(ui, other, opts, buffered)
 
         # XXX once graphlog extension makes it into core,
         # should be replaced by a if graph/else
         displaychlist(other, chlist, displayer)
 
         displayer.close()
     finally:
         if hasattr(other, 'close'):
             other.close()
         if bundle:
             os.unlink(bundle)
     subreporecurse()
     return 0 # exit code is zero since we found incoming changes
 
 def incoming(ui, repo, source, opts):
     def subreporecurse():
         ret = 1
         if opts.get('subrepos'):
             ctx = repo[None]
             for subpath in sorted(ctx.substate):
                 sub = ctx.sub(subpath)
                 ret = min(ret, sub.incoming(ui, source, opts))
         return ret
 
     def display(other, chlist, displayer):
         limit = cmdutil.loglimit(opts)
         if opts.get('newest_first'):
             chlist.reverse()
         count = 0
         for n in chlist:
             if limit is not None and count >= limit:
                 break
             parents = [p for p in other.changelog.parents(n) if p != nullid]
             if opts.get('no_merges') and len(parents) == 2:
                 continue
             count += 1
             displayer.show(other[n])
     return _incoming(display, subreporecurse, ui, repo, source, opts)
 
 def _outgoing(ui, repo, dest, opts):
     dest = ui.expandpath(dest or 'default-push', dest or 'default')
     dest, branches = parseurl(dest, opts.get('branch'))
     ui.status(_('comparing with %s\n') % url.hidepassword(dest))
     revs, checkout = addbranchrevs(repo, repo, branches, opts.get('rev'))
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
 
     other = repository(remoteui(repo, opts), dest)
-    o = discovery.findoutgoing(repo, other, force=opts.get('force'))
+    inc = discovery.findcommonincoming(repo, other, force=opts.get('force'))
+    common, _anyinc, _heads = inc
+    o = repo.changelog.findmissing(common, revs)
     if not o:
         ui.status(_("no changes found\n"))
         return None
-
-    return repo.changelog.nodesbetween(o, revs)[0]
+    return o
 
 def outgoing(ui, repo, dest, opts):
     def recurse():
         ret = 1
         if opts.get('subrepos'):
             ctx = repo[None]
             for subpath in sorted(ctx.substate):
                 sub = ctx.sub(subpath)
                 ret = min(ret, sub.outgoing(ui, dest, opts))
         return ret
 
     limit = cmdutil.loglimit(opts)
     o = _outgoing(ui, repo, dest, opts)
     if o is None:
         return recurse()
 
     if opts.get('newest_first'):
         o.reverse()
     displayer = cmdutil.show_changeset(ui, repo, opts)
     count = 0
     for n in o:
         if limit is not None and count >= limit:
             break
         parents = [p for p in repo.changelog.parents(n) if p != nullid]
         if opts.get('no_merges') and len(parents) == 2:
             continue
         count += 1
         displayer.show(repo[n])
     displayer.close()
     recurse()
     return 0 # exit code is zero since we found outgoing changes
 
 def revert(repo, node, choose):
     """revert changes to revision in node without updating dirstate"""
     return mergemod.update(repo, node, False, True, choose)[3] > 0
 
 def verify(repo):
     """verify the consistency of a repository"""
     return verifymod.verify(repo)
 
 def remoteui(src, opts):
     'build a remote ui from ui or repo and opts'
     if hasattr(src, 'baseui'): # looks like a repository
         dst = src.baseui.copy() # drop repo-specific config
         src = src.ui # copy target options from repo
     else: # assume it's a global ui object
         dst = src.copy() # keep all global options
 
     # copy ssh-specific options
     for o in 'ssh', 'remotecmd':
         v = opts.get(o) or src.config('ui', o)
         if v:
             dst.setconfig("ui", o, v)
 
     # copy bundle-specific options
     r = src.config('bundle', 'mainreporoot')
     if r:
         dst.setconfig('bundle', 'mainreporoot', r)
 
     # copy selected local settings to the remote ui
     for sect in ('auth', 'hostfingerprints', 'http_proxy'):
         for key, val in src.configitems(sect):
             dst.setconfig(sect, key, val)
     v = src.config('web', 'cacerts')
     if v:
         dst.setconfig('web', 'cacerts', util.expandpath(v))
 
     return dst

mercurial/localrepo.py

@@ -1,1942 +1,1943
 # localrepo.py - read/write repository class for mercurial
 #
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from node import bin, hex, nullid, nullrev, short
 from i18n import _
 import repo, changegroup, subrepo, discovery, pushkey
 import changelog, dirstate, filelog, manifest, context, bookmarks
 import lock, transaction, store, encoding
 import scmutil, util, extensions, hook, error
 import match as matchmod
 import merge as mergemod
 import tags as tagsmod
 import url as urlmod
 from lock import release
 import weakref, errno, os, time, inspect
 propertycache = util.propertycache
 
 class localrepository(repo.repository):
     capabilities = set(('lookup', 'changegroupsubset', 'branchmap', 'pushkey',
                         'known', 'getbundle'))
     supportedformats = set(('revlogv1', 'parentdelta'))
     supported = supportedformats | set(('store', 'fncache', 'shared',
                                         'dotencode'))
 
     def __init__(self, baseui, path=None, create=0):
         repo.repository.__init__(self)
         self.root = os.path.realpath(util.expandpath(path))
         self.path = os.path.join(self.root, ".hg")
         self.origroot = path
         self.auditor = scmutil.path_auditor(self.root, self._checknested)
         self.opener = scmutil.opener(self.path)
         self.wopener = scmutil.opener(self.root)
         self.baseui = baseui
         self.ui = baseui.copy()
 
         try:
             self.ui.readconfig(self.join("hgrc"), self.root)
             extensions.loadall(self.ui)
         except IOError:
             pass
 
         if not os.path.isdir(self.path):
             if create:
                 if not os.path.exists(path):
                     util.makedirs(path)
                 util.makedir(self.path, notindexed=True)
                 requirements = ["revlogv1"]
                 if self.ui.configbool('format', 'usestore', True):
                     os.mkdir(os.path.join(self.path, "store"))
                     requirements.append("store")
                     if self.ui.configbool('format', 'usefncache', True):
                         requirements.append("fncache")
                         if self.ui.configbool('format', 'dotencode', True):
                             requirements.append('dotencode')
                     # create an invalid changelog
                     self.opener("00changelog.i", "a").write(
                         '\0\0\0\2' # represents revlogv2
                         ' dummy changelog to prevent using the old repo layout'
                     )
                 if self.ui.configbool('format', 'parentdelta', False):
                     requirements.append("parentdelta")
             else:
                 raise error.RepoError(_("repository %s not found") % path)
         elif create:
             raise error.RepoError(_("repository %s already exists") % path)
         else:
             # find requirements
             requirements = set()
             try:
                 requirements = set(self.opener("requires").read().splitlines())
             except IOError, inst:
                 if inst.errno != errno.ENOENT:
                     raise
             for r in requirements - self.supported:
                 raise error.RequirementError(
                           _("requirement '%s' not supported") % r)
 
         self.sharedpath = self.path
         try:
             s = os.path.realpath(self.opener("sharedpath").read())
             if not os.path.exists(s):
                 raise error.RepoError(
                     _('.hg/sharedpath points to nonexistent directory %s') % s)
             self.sharedpath = s
         except IOError, inst:
             if inst.errno != errno.ENOENT:
                 raise
 
         self.store = store.store(requirements, self.sharedpath, scmutil.opener)
         self.spath = self.store.path
         self.sopener = self.store.opener
         self.sjoin = self.store.join
         self.opener.createmode = self.store.createmode
         self._applyrequirements(requirements)
         if create:
             self._writerequirements()
 
         # These two define the set of tags for this repository.  _tags
         # maps tag name to node; _tagtypes maps tag name to 'global' or
         # 'local'.  (Global tags are defined by .hgtags across all
         # heads, and local tags are defined in .hg/localtags.)  They
         # constitute the in-memory cache of tags.
         self._tags = None
         self._tagtypes = None
 
         self._branchcache = None
         self._branchcachetip = None
         self.nodetagscache = None
         self.filterpats = {}
         self._datafilters = {}
         self._transref = self._lockref = self._wlockref = None
 
     def _applyrequirements(self, requirements):
         self.requirements = requirements
         self.sopener.options = {}
         if 'parentdelta' in requirements:
             self.sopener.options['parentdelta'] = 1
 
     def _writerequirements(self):
         reqfile = self.opener("requires", "w")
         for r in self.requirements:
             reqfile.write("%s\n" % r)
         reqfile.close()
 
     def _checknested(self, path):
         """Determine if path is a legal nested repository."""
         if not path.startswith(self.root):
             return False
         subpath = path[len(self.root) + 1:]
 
         # XXX: Checking against the current working copy is wrong in
         # the sense that it can reject things like
         #
         #   $ hg cat -r 10 sub/x.txt
         #
         # if sub/ is no longer a subrepository in the working copy
         # parent revision.
         #
         # However, it can of course also allow things that would have
         # been rejected before, such as the above cat command if sub/
         # is a subrepository now, but was a normal directory before.
         # The old path auditor would have rejected by mistake since it
         # panics when it sees sub/.hg/.
         #
         # All in all, checking against the working copy seems sensible
         # since we want to prevent access to nested repositories on
         # the filesystem *now*.
         ctx = self[None]
         parts = util.splitpath(subpath)
         while parts:
             prefix = os.sep.join(parts)
             if prefix in ctx.substate:
                 if prefix == subpath:
                     return True
                 else:
                     sub = ctx.sub(prefix)
                     return sub.checknested(subpath[len(prefix) + 1:])
             else:
                 parts.pop()
         return False
 
     @util.propertycache
     def _bookmarks(self):
         return bookmarks.read(self)
 
     @util.propertycache
     def _bookmarkcurrent(self):
         return bookmarks.readcurrent(self)
 
     @propertycache
     def changelog(self):
         c = changelog.changelog(self.sopener)
         if 'HG_PENDING' in os.environ:
             p = os.environ['HG_PENDING']
             if p.startswith(self.root):
                 c.readpending('00changelog.i.a')
         self.sopener.options['defversion'] = c.version
         return c
 
     @propertycache
     def manifest(self):
         return manifest.manifest(self.sopener)
 
     @propertycache
     def dirstate(self):
         warned = [0]
         def validate(node):
             try:
                 self.changelog.rev(node)
                 return node
             except error.LookupError:
                 if not warned[0]:
                     warned[0] = True
                     self.ui.warn(_("warning: ignoring unknown"
                                    " working parent %s!\n") % short(node))
                 return nullid
 
         return dirstate.dirstate(self.opener, self.ui, self.root, validate)
 
     def __getitem__(self, changeid):
         if changeid is None:
             return context.workingctx(self)
         return context.changectx(self, changeid)
 
     def __contains__(self, changeid):
         try:
             return bool(self.lookup(changeid))
         except error.RepoLookupError:
             return False
 
     def __nonzero__(self):
         return True
 
     def __len__(self):
         return len(self.changelog)
 
     def __iter__(self):
         for i in xrange(len(self)):
             yield i
 
     def url(self):
         return 'file:' + self.root
 
     def hook(self, name, throw=False, **args):
         return hook.hook(self.ui, self, name, throw, **args)
 
     tag_disallowed = ':\r\n'
 
     def _tag(self, names, node, message, local, user, date, extra={}):
         if isinstance(names, str):
             allchars = names
             names = (names,)
         else:
             allchars = ''.join(names)
         for c in self.tag_disallowed:
             if c in allchars:
                 raise util.Abort(_('%r cannot be used in a tag name') % c)
 
         branches = self.branchmap()
         for name in names:
             self.hook('pretag', throw=True, node=hex(node), tag=name,
                       local=local)
             if name in branches:
                 self.ui.warn(_("warning: tag %s conflicts with existing"
                 " branch name\n") % name)
 
         def writetags(fp, names, munge, prevtags):
             fp.seek(0, 2)
             if prevtags and prevtags[-1] != '\n':
                 fp.write('\n')
             for name in names:
                 m = munge and munge(name) or name
                 if self._tagtypes and name in self._tagtypes:
                     old = self._tags.get(name, nullid)
                     fp.write('%s %s\n' % (hex(old), m))
                 fp.write('%s %s\n' % (hex(node), m))
             fp.close()
 
         prevtags = ''
         if local:
             try:
                 fp = self.opener('localtags', 'r+')
             except IOError:
                 fp = self.opener('localtags', 'a')
             else:
                 prevtags = fp.read()
 
             # local tags are stored in the current charset
             writetags(fp, names, None, prevtags)
             for name in names:
                 self.hook('tag', node=hex(node), tag=name, local=local)
             return
 
         try:
             fp = self.wfile('.hgtags', 'rb+')
         except IOError:
             fp = self.wfile('.hgtags', 'ab')
         else:
             prevtags = fp.read()
 
         # committed tags are stored in UTF-8
         writetags(fp, names, encoding.fromlocal, prevtags)
 
         fp.close()
 
         if '.hgtags' not in self.dirstate:
             self[None].add(['.hgtags'])
 
         m = matchmod.exact(self.root, '', ['.hgtags'])
         tagnode = self.commit(message, user, date, extra=extra, match=m)
 
         for name in names:
             self.hook('tag', node=hex(node), tag=name, local=local)
 
         return tagnode
 
     def tag(self, names, node, message, local, user, date):
         '''tag a revision with one or more symbolic names.
 
         names is a list of strings or, when adding a single tag, names may be a
         string.
 
         if local is True, the tags are stored in a per-repository file.
         otherwise, they are stored in the .hgtags file, and a new
         changeset is committed with the change.
 
         keyword arguments:
 
         local: whether to store tags in non-version-controlled file
         (default False)
 
         message: commit message to use if committing
 
         user: name of user to use if committing
 
         date: date tuple to use if committing'''
 
         if not local:
             for x in self.status()[:5]:
                 if '.hgtags' in x:
                     raise util.Abort(_('working copy of .hgtags is changed '
                                        '(please commit .hgtags manually)'))
 
         self.tags() # instantiate the cache
         self._tag(names, node, message, local, user, date)
 
     def tags(self):
         '''return a mapping of tag to node'''
         if self._tags is None:
             (self._tags, self._tagtypes) = self._findtags()
 
         return self._tags
 
     def _findtags(self):
         '''Do the hard work of finding tags.  Return a pair of dicts
         (tags, tagtypes) where tags maps tag name to node, and tagtypes
         maps tag name to a string like \'global\' or \'local\'.
         Subclasses or extensions are free to add their own tags, but
         should be aware that the returned dicts will be retained for the
         duration of the localrepo object.'''
 
         # XXX what tagtype should subclasses/extensions use?  Currently
         # mq and bookmarks add tags, but do not set the tagtype at all.
         # Should each extension invent its own tag type?  Should there
         # be one tagtype for all such "virtual" tags?  Or is the status
         # quo fine?
 
         alltags = {}                    # map tag name to (node, hist)
         tagtypes = {}
 
         tagsmod.findglobaltags(self.ui, self, alltags, tagtypes)
         tagsmod.readlocaltags(self.ui, self, alltags, tagtypes)
 
         # Build the return dicts.  Have to re-encode tag names because
         # the tags module always uses UTF-8 (in order not to lose info
         # writing to the cache), but the rest of Mercurial wants them in
         # local encoding.
         tags = {}
         for (name, (node, hist)) in alltags.iteritems():
             if node != nullid:
                 try:
                     # ignore tags to unknown nodes
                     self.changelog.lookup(node)
                     tags[encoding.tolocal(name)] = node
                 except error.LookupError:
                     pass
         tags['tip'] = self.changelog.tip()
         tagtypes = dict([(encoding.tolocal(name), value)
                          for (name, value) in tagtypes.iteritems()])
         return (tags, tagtypes)
 
     def tagtype(self, tagname):
         '''
         return the type of the given tag. result can be:
 
         'local'  : a local tag
         'global' : a global tag
         None     : tag does not exist
         '''
 
         self.tags()
 
         return self._tagtypes.get(tagname)
 
     def tagslist(self):
         '''return a list of tags ordered by revision'''
         l = []
         for t, n in self.tags().iteritems():
             r = self.changelog.rev(n)
             l.append((r, t, n))
         return [(t, n) for r, t, n in sorted(l)]
 
     def nodetags(self, node):
         '''return the tags associated with a node'''
         if not self.nodetagscache:
             self.nodetagscache = {}
             for t, n in self.tags().iteritems():
                 self.nodetagscache.setdefault(n, []).append(t)
             for tags in self.nodetagscache.itervalues():
                 tags.sort()
         return self.nodetagscache.get(node, [])
 
     def nodebookmarks(self, node):
         marks = []
         for bookmark, n in self._bookmarks.iteritems():
             if n == node:
                 marks.append(bookmark)
         return sorted(marks)
 
     def _branchtags(self, partial, lrev):
         # TODO: rename this function?
         tiprev = len(self) - 1
         if lrev != tiprev:
             ctxgen = (self[r] for r in xrange(lrev + 1, tiprev + 1))
             self._updatebranchcache(partial, ctxgen)
             self._writebranchcache(partial, self.changelog.tip(), tiprev)
 
         return partial
 
     def updatebranchcache(self):
         tip = self.changelog.tip()
         if self._branchcache is not None and self._branchcachetip == tip:
             return self._branchcache
 
         oldtip = self._branchcachetip
         self._branchcachetip = tip
         if oldtip is None or oldtip not in self.changelog.nodemap:
             partial, last, lrev = self._readbranchcache()
         else:
             lrev = self.changelog.rev(oldtip)
             partial = self._branchcache
 
         self._branchtags(partial, lrev)
         # this private cache holds all heads (not just tips)
         self._branchcache = partial
 
     def branchmap(self):
         '''returns a dictionary {branch: [branchheads]}'''
         self.updatebranchcache()
         return self._branchcache
 
     def branchtags(self):
         '''return a dict where branch names map to the tipmost head of
         the branch, open heads come before closed'''
         bt = {}
         for bn, heads in self.branchmap().iteritems():
             tip = heads[-1]
             for h in reversed(heads):
                 if 'close' not in self.changelog.read(h)[5]:
                     tip = h
                     break
             bt[bn] = tip
         return bt
 
     def _readbranchcache(self):
         partial = {}
         try:
             f = self.opener("cache/branchheads")
             lines = f.read().split('\n')
             f.close()
         except (IOError, OSError):
             return {}, nullid, nullrev
 
         try:
             last, lrev = lines.pop(0).split(" ", 1)
             last, lrev = bin(last), int(lrev)
             if lrev >= len(self) or self[lrev].node() != last:
                 # invalidate the cache
                 raise ValueError('invalidating branch cache (tip differs)')
             for l in lines:
                 if not l:
                     continue
                 node, label = l.split(" ", 1)
                 label = encoding.tolocal(label.strip())
                 partial.setdefault(label, []).append(bin(node))
         except KeyboardInterrupt:
             raise
         except Exception, inst:
             if self.ui.debugflag:
                 self.ui.warn(str(inst), '\n')
             partial, last, lrev = {}, nullid, nullrev
         return partial, last, lrev
 
     def _writebranchcache(self, branches, tip, tiprev):
         try:
             f = self.opener("cache/branchheads", "w", atomictemp=True)
             f.write("%s %s\n" % (hex(tip), tiprev))
             for label, nodes in branches.iteritems():
                 for node in nodes:
                     f.write("%s %s\n" % (hex(node), encoding.fromlocal(label)))
             f.rename()
         except (IOError, OSError):
             pass
 
     def _updatebranchcache(self, partial, ctxgen):
         # collect new branch entries
         newbranches = {}
         for c in ctxgen:
             newbranches.setdefault(c.branch(), []).append(c.node())
         # if older branchheads are reachable from new ones, they aren't
         # really branchheads. Note checking parents is insufficient:
         # 1 (branch a) -> 2 (branch b) -> 3 (branch a)
         for branch, newnodes in newbranches.iteritems():
             bheads = partial.setdefault(branch, [])
             bheads.extend(newnodes)
             if len(bheads) <= 1:
                 continue
             bheads = sorted(bheads, key=lambda x: self[x].rev())
             # starting from tip means fewer passes over reachable
             while newnodes:
                 latest = newnodes.pop()
                 if latest not in bheads:
                     continue
                 minbhrev = self[bheads[0]].node()
                 reachable = self.changelog.reachable(latest, minbhrev)
                 reachable.remove(latest)
                 if reachable:
                     bheads = [b for b in bheads if b not in reachable]
             partial[branch] = bheads
 
     def lookup(self, key):
         if isinstance(key, int):
             return self.changelog.node(key)
         elif key == '.':
             return self.dirstate.p1()
         elif key == 'null':
             return nullid
         elif key == 'tip':
             return self.changelog.tip()
         n = self.changelog._match(key)
         if n:
             return n
         if key in self._bookmarks:
             return self._bookmarks[key]
         if key in self.tags():
             return self.tags()[key]
         if key in self.branchtags():
             return self.branchtags()[key]
         n = self.changelog._partialmatch(key)
         if n:
             return n
 
         # can't find key, check if it might have come from damaged dirstate
         if key in self.dirstate.parents():
             raise error.Abort(_("working directory has unknown parent '%s'!")
                               % short(key))
         try:
             if len(key) == 20:
                 key = hex(key)
         except TypeError:
             pass
         raise error.RepoLookupError(_("unknown revision '%s'") % key)
 
     def lookupbranch(self, key, remote=None):
         repo = remote or self
         if key in repo.branchmap():
             return key
 
         repo = (remote and remote.local()) and remote or self
         return repo[key].branch()
 
     def known(self, nodes):
         nm = self.changelog.nodemap
         return [(n in nm) for n in nodes]
 
     def local(self):
         return True
 
     def join(self, f):
         return os.path.join(self.path, f)
 
     def wjoin(self, f):
         return os.path.join(self.root, f)
 
     def file(self, f):
         if f[0] == '/':
             f = f[1:]
         return filelog.filelog(self.sopener, f)
 
     def changectx(self, changeid):
         return self[changeid]
 
     def parents(self, changeid=None):
         '''get list of changectxs for parents of changeid'''
         return self[changeid].parents()
 
     def filectx(self, path, changeid=None, fileid=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         return context.filectx(self, path, changeid, fileid)
 
     def getcwd(self):
         return self.dirstate.getcwd()
 
     def pathto(self, f, cwd=None):
         return self.dirstate.pathto(f, cwd)
 
     def wfile(self, f, mode='r'):
         return self.wopener(f, mode)
 
     def _link(self, f):
         return os.path.islink(self.wjoin(f))
 
     def _loadfilter(self, filter):
         if filter not in self.filterpats:
             l = []
             for pat, cmd in self.ui.configitems(filter):
                 if cmd == '!':
                     continue
                 mf = matchmod.match(self.root, '', [pat])
                 fn = None
                 params = cmd
                 for name, filterfn in self._datafilters.iteritems():
                     if cmd.startswith(name):
                         fn = filterfn
                         params = cmd[len(name):].lstrip()
                         break
                 if not fn:
                     fn = lambda s, c, **kwargs: util.filter(s, c)
                 # Wrap old filters not supporting keyword arguments
                 if not inspect.getargspec(fn)[2]:
                     oldfn = fn
                     fn = lambda s, c, **kwargs: oldfn(s, c)
                 l.append((mf, fn, params))
             self.filterpats[filter] = l
         return self.filterpats[filter]
 
     def _filter(self, filterpats, filename, data):
         for mf, fn, cmd in filterpats:
             if mf(filename):
                 self.ui.debug("filtering %s through %s\n" % (filename, cmd))
                 data = fn(data, cmd, ui=self.ui, repo=self, filename=filename)
                 break
 
         return data
 
     @propertycache
     def _encodefilterpats(self):
         return self._loadfilter('encode')
 
     @propertycache
     def _decodefilterpats(self):
         return self._loadfilter('decode')
 
     def adddatafilter(self, name, filter):
         self._datafilters[name] = filter
 
     def wread(self, filename):
         if self._link(filename):
             data = os.readlink(self.wjoin(filename))
         else:
             data = self.wopener(filename, 'r').read()
         return self._filter(self._encodefilterpats, filename, data)
 
     def wwrite(self, filename, data, flags):
         data = self._filter(self._decodefilterpats, filename, data)
         if 'l' in flags:
             self.wopener.symlink(data, filename)
         else:
             self.wopener(filename, 'w').write(data)
             if 'x' in flags:
                 util.set_flags(self.wjoin(filename), False, True)
 
     def wwritedata(self, filename, data):
         return self._filter(self._decodefilterpats, filename, data)
 
     def transaction(self, desc):
         tr = self._transref and self._transref() or None
         if tr and tr.running():
             return tr.nest()
 
         # abort here if the journal already exists
         if os.path.exists(self.sjoin("journal")):
             raise error.RepoError(
                 _("abandoned transaction found - run hg recover"))
 
         # save dirstate for rollback
         try:
             ds = self.opener("dirstate").read()
         except IOError:
             ds = ""
         self.opener("journal.dirstate", "w").write(ds)
         self.opener("journal.branch", "w").write(
             encoding.fromlocal(self.dirstate.branch()))
         self.opener("journal.desc", "w").write("%d\n%s\n" % (len(self), desc))
 
         renames = [(self.sjoin("journal"), self.sjoin("undo")),
                    (self.join("journal.dirstate"), self.join("undo.dirstate")),
                    (self.join("journal.branch"), self.join("undo.branch")),
                    (self.join("journal.desc"), self.join("undo.desc"))]
         tr = transaction.transaction(self.ui.warn, self.sopener,
                                      self.sjoin("journal"),
                                      aftertrans(renames),
                                      self.store.createmode)
         self._transref = weakref.ref(tr)
         return tr
 
     def recover(self):
         lock = self.lock()
         try:
             if os.path.exists(self.sjoin("journal")):
                 self.ui.status(_("rolling back interrupted transaction\n"))
                 transaction.rollback(self.sopener, self.sjoin("journal"),
                                      self.ui.warn)
                 self.invalidate()
                 return True
             else:
                 self.ui.warn(_("no interrupted transaction available\n"))
                 return False
         finally:
             lock.release()
 
     def rollback(self, dryrun=False):
         wlock = lock = None
         try:
             wlock = self.wlock()
             lock = self.lock()
             if os.path.exists(self.sjoin("undo")):
                 try:
                     args = self.opener("undo.desc", "r").read().splitlines()
                     if len(args) >= 3 and self.ui.verbose:
                         desc = _("repository tip rolled back to revision %s"
                                  " (undo %s: %s)\n") % (
                                  int(args[0]) - 1, args[1], args[2])
                     elif len(args) >= 2:
                         desc = _("repository tip rolled back to revision %s"
                                  " (undo %s)\n") % (
                                  int(args[0]) - 1, args[1])
                 except IOError:
                     desc = _("rolling back unknown transaction\n")
                 self.ui.status(desc)
                 if dryrun:
                     return
                 transaction.rollback(self.sopener, self.sjoin("undo"),
                                      self.ui.warn)
                 util.rename(self.join("undo.dirstate"), self.join("dirstate"))
                 if os.path.exists(self.join('undo.bookmarks')):
                     util.rename(self.join('undo.bookmarks'),
                                 self.join('bookmarks'))
                 try:
                     branch = self.opener("undo.branch").read()
                     self.dirstate.setbranch(branch)
                 except IOError:
                     self.ui.warn(_("named branch could not be reset, "
                                    "current branch is still: %s\n")
                                  % self.dirstate.branch())
                 self.invalidate()
                 self.dirstate.invalidate()
                 self.destroyed()
                 parents = tuple([p.rev() for p in self.parents()])
                 if len(parents) > 1:
                     self.ui.status(_("working directory now based on "
                                      "revisions %d and %d\n") % parents)
                 else:
                     self.ui.status(_("working directory now based on "
                                      "revision %d\n") % parents)
             else:
                 self.ui.warn(_("no rollback information available\n"))
                 return 1
         finally:
             release(lock, wlock)
 
     def invalidatecaches(self):
         self._tags = None
         self._tagtypes = None
         self.nodetagscache = None
         self._branchcache = None # in UTF-8
         self._branchcachetip = None
 
     def invalidate(self):
         for a in ("changelog", "manifest", "_bookmarks", "_bookmarkcurrent"):
             if a in self.__dict__:
                 delattr(self, a)
         self.invalidatecaches()
 
     def _lock(self, lockname, wait, releasefn, acquirefn, desc):
         try:
             l = lock.lock(lockname, 0, releasefn, desc=desc)
         except error.LockHeld, inst:
             if not wait:
                 raise
             self.ui.warn(_("waiting for lock on %s held by %r\n") %
                          (desc, inst.locker))
             # default to 600 seconds timeout
             l = lock.lock(lockname, int(self.ui.config("ui", "timeout", "600")),
                           releasefn, desc=desc)
         if acquirefn:
             acquirefn()
         return l
 
     def lock(self, wait=True):
         '''Lock the repository store (.hg/store) and return a weak reference
         to the lock. Use this before modifying the store (e.g. committing or
         stripping). If you are opening a transaction, get a lock as well.)'''
         l = self._lockref and self._lockref()
         if l is not None and l.held:
             l.lock()
             return l
 
         l = self._lock(self.sjoin("lock"), wait, self.store.write,
                        self.invalidate, _('repository %s') % self.origroot)
         self._lockref = weakref.ref(l)
         return l
 
     def wlock(self, wait=True):
         '''Lock the non-store parts of the repository (everything under
         .hg except .hg/store) and return a weak reference to the lock.
         Use this before modifying files in .hg.'''
         l = self._wlockref and self._wlockref()
         if l is not None and l.held:
             l.lock()
             return l
 
         l = self._lock(self.join("wlock"), wait, self.dirstate.write,
                        self.dirstate.invalidate, _('working directory of %s') %
                        self.origroot)
         self._wlockref = weakref.ref(l)
         return l
 
     def _filecommit(self, fctx, manifest1, manifest2, linkrev, tr, changelist):
         """
         commit an individual file as part of a larger transaction
         """
 
         fname = fctx.path()
         text = fctx.data()
         flog = self.file(fname)
         fparent1 = manifest1.get(fname, nullid)
         fparent2 = fparent2o = manifest2.get(fname, nullid)
 
         meta = {}
         copy = fctx.renamed()
         if copy and copy[0] != fname:
             # Mark the new revision of this file as a copy of another
             # file.  This copy data will effectively act as a parent
             # of this new revision.  If this is a merge, the first
             # parent will be the nullid (meaning "look up the copy data")
             # and the second one will be the other parent.  For example:
             #
             # 0 --- 1 --- 3   rev1 changes file foo
             #   \       /     rev2 renames foo to bar and changes it
             #    \- 2 -/      rev3 should have bar with all changes and
             #                      should record that bar descends from
             #                      bar in rev2 and foo in rev1
             #
             # this allows this merge to succeed:
             #
             # 0 --- 1 --- 3   rev4 reverts the content change from rev2
             #   \       /     merging rev3 and rev4 should use bar@rev2
             #    \- 2 --- 4        as the merge base
             #
 
             cfname = copy[0]
             crev = manifest1.get(cfname)
             newfparent = fparent2
 
             if manifest2: # branch merge
                 if fparent2 == nullid or crev is None: # copied on remote side
                     if cfname in manifest2:
                         crev = manifest2[cfname]
                         newfparent = fparent1
 
             # find source in nearest ancestor if we've lost track
             if not crev:
                 self.ui.debug(" %s: searching for copy revision for %s\n" %
                               (fname, cfname))
                 for ancestor in self[None].ancestors():
                     if cfname in ancestor:
                         crev = ancestor[cfname].filenode()
                         break
 
             if crev:
                 self.ui.debug(" %s: copy %s:%s\n" % (fname, cfname, hex(crev)))
                 meta["copy"] = cfname
                 meta["copyrev"] = hex(crev)
                 fparent1, fparent2 = nullid, newfparent
             else:
                 self.ui.warn(_("warning: can't find ancestor for '%s' "
                                "copied from '%s'!\n") % (fname, cfname))
 
         elif fparent2 != nullid:
             # is one parent an ancestor of the other?
             fparentancestor = flog.ancestor(fparent1, fparent2)
             if fparentancestor == fparent1:
                 fparent1, fparent2 = fparent2, nullid
             elif fparentancestor == fparent2:
                 fparent2 = nullid
 
         # is the file changed?
         if fparent2 != nullid or flog.cmp(fparent1, text) or meta:
             changelist.append(fname)
             return flog.add(text, meta, tr, linkrev, fparent1, fparent2)
 
         # are just the flags changed during merge?
         if fparent1 != fparent2o and manifest1.flags(fname) != fctx.flags():
             changelist.append(fname)
 
         return fparent1
 
     def commit(self, text="", user=None, date=None, match=None, force=False,
                editor=False, extra={}):
         """Add a new revision to current repository.
 
         Revision information is gathered from the working directory,
         match can be used to filter the committed files. If editor is
         supplied, it is called to get a commit message.
         """
 
         def fail(f, msg):
             raise util.Abort('%s: %s' % (f, msg))
 
         if not match:
             match = matchmod.always(self.root, '')
 
         if not force:
             vdirs = []
             match.dir = vdirs.append
             match.bad = fail
 
         wlock = self.wlock()
         try:
             wctx = self[None]
             merge = len(wctx.parents()) > 1
 
             if (not force and merge and match and
                 (match.files() or match.anypats())):
                 raise util.Abort(_('cannot partially commit a merge '
                                    '(do not specify files or patterns)'))
 
             changes = self.status(match=match, clean=force)
             if force:
                 changes[0].extend(changes[6]) # mq may commit unchanged files
 
             # check subrepos
             subs = []
             removedsubs = set()
             for p in wctx.parents():
                 removedsubs.update(s for s in p.substate if match(s))
             for s in wctx.substate:
                 removedsubs.discard(s)
                 if match(s) and wctx.sub(s).dirty():
                     subs.append(s)
             if (subs or removedsubs):
                 if (not match('.hgsub') and
                     '.hgsub' in (wctx.modified() + wctx.added())):
                     raise util.Abort(_("can't commit subrepos without .hgsub"))
                 if '.hgsubstate' not in changes[0]:
                     changes[0].insert(0, '.hgsubstate')
 
             if subs and not self.ui.configbool('ui', 'commitsubrepos', True):
                 changedsubs = [s for s in subs if wctx.sub(s).dirty(True)]
                 if changedsubs:
                     raise util.Abort(_("uncommitted changes in subrepo %s")
                                      % changedsubs[0])
 
             # make sure all explicit patterns are matched
             if not force and match.files():
                 matched = set(changes[0] + changes[1] + changes[2])
 
                 for f in match.files():
                     if f == '.' or f in matched or f in wctx.substate:
                         continue
                     if f in changes[3]: # missing
                         fail(f, _('file not found!'))
                     if f in vdirs: # visited directory
                         d = f + '/'
                         for mf in matched:
                             if mf.startswith(d):
                                 break
                         else:
                             fail(f, _("no match under directory!"))
                     elif f not in self.dirstate:
                         fail(f, _("file not tracked!"))
 
             if (not force and not extra.get("close") and not merge
                 and not (changes[0] or changes[1] or changes[2])
                 and wctx.branch() == wctx.p1().branch()):
                 return None
 
             ms = mergemod.mergestate(self)
             for f in changes[0]:
                 if f in ms and ms[f] == 'u':
                     raise util.Abort(_("unresolved merge conflicts "
                                        "(see hg help resolve)"))
 
             cctx = context.workingctx(self, text, user, date, extra, changes)
             if editor:
                 cctx._text = editor(self, cctx, subs)
             edited = (text != cctx._text)
 
             # commit subs
             if subs or removedsubs:
                 state = wctx.substate.copy()
                 for s in sorted(subs):
                     sub = wctx.sub(s)
                     self.ui.status(_('committing subrepository %s\n') %
                         subrepo.subrelpath(sub))
                     sr = sub.commit(cctx._text, user, date)
                     state[s] = (state[s][0], sr)
                 subrepo.writestate(self, state)
 
             # Save commit message in case this transaction gets rolled back
             # (e.g. by a pretxncommit hook).  Leave the content alone on
             # the assumption that the user will use the same editor again.
             msgfile = self.opener('last-message.txt', 'wb')
             msgfile.write(cctx._text)
             msgfile.close()
 
             p1, p2 = self.dirstate.parents()
             hookp1, hookp2 = hex(p1), (p2 != nullid and hex(p2) or '')
             try:
                 self.hook("precommit", throw=True, parent1=hookp1, parent2=hookp2)
                 ret = self.commitctx(cctx, True)
             except:
                 if edited:
                     msgfn = self.pathto(msgfile.name[len(self.root)+1:])
                     self.ui.write(
                         _('note: commit message saved in %s\n') % msgfn)
                 raise
 
             # update bookmarks, dirstate and mergestate
             bookmarks.update(self, p1, ret)
             for f in changes[0] + changes[1]:
                 self.dirstate.normal(f)
             for f in changes[2]:
                 self.dirstate.forget(f)
             self.dirstate.setparents(ret)
             ms.reset()
         finally:
             wlock.release()
 
         self.hook("commit", node=hex(ret), parent1=hookp1, parent2=hookp2)
         return ret
 
     def commitctx(self, ctx, error=False):
         """Add a new revision to current repository.
         Revision information is passed via the context argument.
         """
 
         tr = lock = None
         removed = list(ctx.removed())
         p1, p2 = ctx.p1(), ctx.p2()
         m1 = p1.manifest().copy()
         m2 = p2.manifest()
         user = ctx.user()
 
         lock = self.lock()
         try:
             tr = self.transaction("commit")
             trp = weakref.proxy(tr)
 
             # check in files
             new = {}
             changed = []
             linkrev = len(self)
             for f in sorted(ctx.modified() + ctx.added()):
                 self.ui.note(f + "\n")
                 try:
                     fctx = ctx[f]
                     new[f] = self._filecommit(fctx, m1, m2, linkrev, trp,
                                               changed)
                     m1.set(f, fctx.flags())
                 except OSError, inst:
                     self.ui.warn(_("trouble committing %s!\n") % f)
                     raise
                 except IOError, inst:
                     errcode = getattr(inst, 'errno', errno.ENOENT)
                     if error or errcode and errcode != errno.ENOENT:
                         self.ui.warn(_("trouble committing %s!\n") % f)
                         raise
                     else:
                         removed.append(f)
 
             # update manifest
             m1.update(new)
             removed = [f for f in sorted(removed) if f in m1 or f in m2]
             drop = [f for f in removed if f in m1]
             for f in drop:
                 del m1[f]
             mn = self.manifest.add(m1, trp, linkrev, p1.manifestnode(),
                                    p2.manifestnode(), (new, drop))
 
             # update changelog
             self.changelog.delayupdate()
             n = self.changelog.add(mn, changed + removed, ctx.description(),
                                    trp, p1.node(), p2.node(),
                                    user, ctx.date(), ctx.extra().copy())
             p = lambda: self.changelog.writepending() and self.root or ""
             xp1, xp2 = p1.hex(), p2 and p2.hex() or ''
             self.hook('pretxncommit', throw=True, node=hex(n), parent1=xp1,
                       parent2=xp2, pending=p)
             self.changelog.finalize(trp)
             tr.close()
 
             if self._branchcache:
                 self.updatebranchcache()
             return n
         finally:
             if tr:
                 tr.release()
             lock.release()
 
     def destroyed(self):
         '''Inform the repository that nodes have been destroyed.
         Intended for use by strip and rollback, so there's a common
         place for anything that has to be done after destroying history.'''
         # XXX it might be nice if we could take the list of destroyed
         # nodes, but I don't see an easy way for rollback() to do that
 
         # Ensure the persistent tag cache is updated.  Doing it now
         # means that the tag cache only has to worry about destroyed
         # heads immediately after a strip/rollback.  That in turn
         # guarantees that "cachetip == currenttip" (comparing both rev
         # and node) always means no nodes have been added or destroyed.
 
         # XXX this is suboptimal when qrefresh'ing: we strip the current
         # head, refresh the tag cache, then immediately add a new head.
         # But I think doing it this way is necessary for the "instant
         # tag cache retrieval" case to work.
         self.invalidatecaches()
 
     def walk(self, match, node=None):
         '''
         walk recursively through the directory tree or a given
         changeset, finding all files matched by the match
         function
         '''
         return self[node].walk(match)
 
     def status(self, node1='.', node2=None, match=None,
                ignored=False, clean=False, unknown=False,
                listsubrepos=False):
         """return status of files between two nodes or node and working directory
 
         If node1 is None, use the first dirstate parent instead.
         If node2 is None, compare node1 with working directory.
         """
 
         def mfmatches(ctx):
             mf = ctx.manifest().copy()
             for fn in mf.keys():
                 if not match(fn):
                     del mf[fn]
             return mf
 
         if isinstance(node1, context.changectx):
             ctx1 = node1
         else:
             ctx1 = self[node1]
         if isinstance(node2, context.changectx):
             ctx2 = node2
         else:
             ctx2 = self[node2]
 
         working = ctx2.rev() is None
         parentworking = working and ctx1 == self['.']
         match = match or matchmod.always(self.root, self.getcwd())
         listignored, listclean, listunknown = ignored, clean, unknown
 
         # load earliest manifest first for caching reasons
         if not working and ctx2.rev() < ctx1.rev():
             ctx2.manifest()
 
         if not parentworking:
             def bad(f, msg):
                 if f not in ctx1:
                     self.ui.warn('%s: %s\n' % (self.dirstate.pathto(f), msg))
             match.bad = bad
 
         if working: # we need to scan the working dir
             subrepos = []
             if '.hgsub' in self.dirstate:
                 subrepos = ctx1.substate.keys()
             s = self.dirstate.status(match, subrepos, listignored,
                                      listclean, listunknown)
             cmp, modified, added, removed, deleted, unknown, ignored, clean = s
 
             # check for any possibly clean files
             if parentworking and cmp:
                 fixup = []
                 # do a full compare of any files that might have changed
                 for f in sorted(cmp):
                     if (f not in ctx1 or ctx2.flags(f) != ctx1.flags(f)
                         or ctx1[f].cmp(ctx2[f])):
                         modified.append(f)
                     else:
                         fixup.append(f)
 
                 # update dirstate for files that are actually clean
                 if fixup:
                     if listclean:
                         clean += fixup
 
                     try:
                         # updating the dirstate is optional
                         # so we don't wait on the lock
                         wlock = self.wlock(False)
                         try:
                             for f in fixup:
                                 self.dirstate.normal(f)
                         finally:
                             wlock.release()
                     except error.LockError:
                         pass
 
         if not parentworking:
             mf1 = mfmatches(ctx1)
             if working:
                 # we are comparing working dir against non-parent
                 # generate a pseudo-manifest for the working dir
                 mf2 = mfmatches(self['.'])
                 for f in cmp + modified + added:
                     mf2[f] = None
                     mf2.set(f, ctx2.flags(f))
                 for f in removed:
                     if f in mf2:
                         del mf2[f]
             else:
                 # we are comparing two revisions
                 deleted, unknown, ignored = [], [], []
                 mf2 = mfmatches(ctx2)
 
             modified, added, clean = [], [], []
             for fn in mf2:
                 if fn in mf1:
                     if (fn not in deleted and
                         (mf1.flags(fn) != mf2.flags(fn) or
                          (mf1[fn] != mf2[fn] and
                           (mf2[fn] or ctx1[fn].cmp(ctx2[fn]))))):
                         modified.append(fn)
                     elif listclean:
                         clean.append(fn)
                     del mf1[fn]
                 elif fn not in deleted:
                     added.append(fn)
             removed = mf1.keys()
 
         r = modified, added, removed, deleted, unknown, ignored, clean
 
         if listsubrepos:
             for subpath, sub in subrepo.itersubrepos(ctx1, ctx2):
                 if working:
                     rev2 = None
                 else:
                     rev2 = ctx2.substate[subpath][1]
                 try:
                     submatch = matchmod.narrowmatcher(subpath, match)
                     s = sub.status(rev2, match=submatch, ignored=listignored,
                                    clean=listclean, unknown=listunknown,
                                    listsubrepos=True)
                     for rfiles, sfiles in zip(r, s):
                         rfiles.extend("%s/%s" % (subpath, f) for f in sfiles)
                 except error.LookupError:
                     self.ui.status(_("skipping missing subrepository: %s\n")
                                    % subpath)
 
         for l in r:
             l.sort()
         return r
 
     def heads(self, start=None):
         heads = self.changelog.heads(start)
         # sort the output in rev descending order
         return sorted(heads, key=self.changelog.rev, reverse=True)
 
     def branchheads(self, branch=None, start=None, closed=False):
         '''return a (possibly filtered) list of heads for the given branch
 
         Heads are returned in topological order, from newest to oldest.
         If branch is None, use the dirstate branch.
         If start is not None, return only heads reachable from start.
         If closed is True, return heads that are marked as closed as well.
         '''
         if branch is None:
             branch = self[None].branch()
         branches = self.branchmap()
         if branch not in branches:
             return []
         # the cache returns heads ordered lowest to highest
         bheads = list(reversed(branches[branch]))
         if start is not None:
             # filter out the heads that cannot be reached from startrev
             fbheads = set(self.changelog.nodesbetween([start], bheads)[2])
             bheads = [h for h in bheads if h in fbheads]
         if not closed:
             bheads = [h for h in bheads if
                       ('close' not in self.changelog.read(h)[5])]
         return bheads
 
     def branches(self, nodes):
         if not nodes:
             nodes = [self.changelog.tip()]
         b = []
         for n in nodes:
             t = n
             while 1:
                 p = self.changelog.parents(n)
                 if p[1] != nullid or p[0] == nullid:
                     b.append((t, n, p[0], p[1]))
                     break
                 n = p[0]
         return b
 
     def between(self, pairs):
         r = []
 
         for top, bottom in pairs:
             n, l, i = top, [], 0
             f = 1
 
             while n != bottom and n != nullid:
                 p = self.changelog.parents(n)[0]
                 if i == f:
                     l.append(n)
                     f = f * 2
                 n = p
                 i += 1
 
             r.append(l)
 
         return r
 
     def pull(self, remote, heads=None, force=False):
         lock = self.lock()
         try:
-            usecommon = remote.capable('getbundle')
             tmp = discovery.findcommonincoming(self, remote, heads=heads,
-                                               force=force, commononly=usecommon)
+                                               force=force)
             common, fetch, rheads = tmp
             if not fetch:
                 self.ui.status(_("no changes found\n"))
                 result = 0
             else:
                 if heads is None and list(common) == [nullid]:
                     self.ui.status(_("requesting all changes\n"))
                 elif heads is None and remote.capable('changegroupsubset'):
                     # issue1320, avoid a race if remote changed after discovery
                     heads = rheads
 
-                if usecommon:
+                if remote.capable('getbundle'):
                     cg = remote.getbundle('pull', common=common,
                                           heads=heads or rheads)
                 elif heads is None:
                     cg = remote.changegroup(fetch, 'pull')
                 elif not remote.capable('changegroupsubset'):
                     raise util.Abort(_("partial pull cannot be done because "
                                            "other repository doesn't support "
                                            "changegroupsubset."))
                 else:
                     cg = remote.changegroupsubset(fetch, heads, 'pull')
                 result = self.addchangegroup(cg, 'pull', remote.url(),
                                              lock=lock)
         finally:
             lock.release()
 
         return result
 
     def checkpush(self, force, revs):
         """Extensions can override this function if additional checks have
         to be performed before pushing, or call it if they override push
         command.
         """
         pass
 
     def push(self, remote, force=False, revs=None, newbranch=False):
         '''Push outgoing changesets (limited by revs) from the current
         repository to remote. Return an integer:
           - 0 means HTTP error *or* nothing to push
           - 1 means we pushed and remote head count is unchanged *or*
             we have outgoing changesets but refused to push
           - other values as described by addchangegroup()
         '''
         # there are two ways to push to remote repo:
         #
         # addchangegroup assumes local user can lock remote
         # repo (local filesystem, old ssh servers).
         #
         # unbundle assumes local user cannot lock remote repo (new ssh
         # servers, http servers).
 
         self.checkpush(force, revs)
         lock = None
         unbundle = remote.capable('unbundle')
         if not unbundle:
             lock = remote.lock()
         try:
             cg, remote_heads = discovery.prepush(self, remote, force, revs,
                                                  newbranch)
             ret = remote_heads
             if cg is not None:
                 if unbundle:
                     # local repo finds heads on server, finds out what
                     # revs it must push. once revs transferred, if server
                     # finds it has different heads (someone else won
                     # commit/push race), server aborts.
                     if force:
                         remote_heads = ['force']
                     # ssh: return remote's addchangegroup()
                     # http: return remote's addchangegroup() or 0 for error
                     ret = remote.unbundle(cg, remote_heads, 'push')
                 else:
                     # we return an integer indicating remote head count change
                     ret = remote.addchangegroup(cg, 'push', self.url(),
                                                 lock=lock)
         finally:
             if lock is not None:
                 lock.release()
 
         self.ui.debug("checking for updated bookmarks\n")
         rb = remote.listkeys('bookmarks')
         for k in rb.keys():
             if k in self._bookmarks:
                 nr, nl = rb[k], hex(self._bookmarks[k])
                 if nr in self:
                     cr = self[nr]
                     cl = self[nl]
                     if cl in cr.descendants():
                         r = remote.pushkey('bookmarks', k, nr, nl)
                         if r:
                             self.ui.status(_("updating bookmark %s\n") % k)
                         else:
                             self.ui.warn(_('updating bookmark %s'
                                            ' failed!\n') % k)
 
         return ret
 
     def changegroupinfo(self, nodes, source):
         if self.ui.verbose or source == 'bundle':
             self.ui.status(_("%d changesets found\n") % len(nodes))
         if self.ui.debugflag:
             self.ui.debug("list of changesets:\n")
             for node in nodes:
                 self.ui.debug("%s\n" % hex(node))
 
     def changegroupsubset(self, bases, heads, source):
         """Compute a changegroup consisting of all the nodes that are
         descendents of any of the bases and ancestors of any of the heads.
         Return a chunkbuffer object whose read() method will return
         successive changegroup chunks.
 
         It is fairly complex as determining which filenodes and which
         manifest nodes need to be included for the changeset to be complete
         is non-trivial.
 
         Another wrinkle is doing the reverse, figuring out which changeset in
         the changegroup a particular filenode or manifestnode belongs to.
         """
         cl = self.changelog
         if not bases:
             bases = [nullid]
         csets, bases, heads = cl.nodesbetween(bases, heads)
         # We assume that all ancestors of bases are known
         common = set(cl.ancestors(*[cl.rev(n) for n in bases]))
         return self._changegroupsubset(common, csets, heads, source)
 
     def getbundle(self, source, heads=None, common=None):
         """Like changegroupsubset, but returns the set difference between the
         ancestors of heads and the ancestors common.
 
         If heads is None, use the local heads. If common is None, use [nullid].
 
         The nodes in common might not all be known locally due to the way the
         current discovery protocol works.
         """
         cl = self.changelog
         if common:
             nm = cl.nodemap
             common = [n for n in common if n in nm]
         else:
             common = [nullid]
         if not heads:
             heads = cl.heads()
         common, missing = cl.findcommonmissing(common, heads)
+        if not missing:
+            return None
         return self._changegroupsubset(common, missing, heads, source)
 
     def _changegroupsubset(self, commonrevs, csets, heads, source):
 
         cl = self.changelog
         mf = self.manifest
         mfs = {} # needed manifests
         fnodes = {} # needed file nodes
         changedfiles = set()
         fstate = ['', {}]
         count = [0]
 
         # can we go through the fast path ?
         heads.sort()
         if heads == sorted(self.heads()):
             return self._changegroup(csets, source)
 
         # slow path
         self.hook('preoutgoing', throw=True, source=source)
         self.changegroupinfo(csets, source)
 
         # filter any nodes that claim to be part of the known set
         def prune(revlog, missing):
             for n in missing:
                 if revlog.linkrev(revlog.rev(n)) not in commonrevs:
                     yield n
 
         def lookup(revlog, x):
             if revlog == cl:
                 c = cl.read(x)
                 changedfiles.update(c[3])
                 mfs.setdefault(c[0], x)
                 count[0] += 1
                 self.ui.progress(_('bundling'), count[0], unit=_('changesets'))
                 return x
             elif revlog == mf:
                 clnode = mfs[x]
                 mdata = mf.readfast(x)
                 for f in changedfiles:
                     if f in mdata:
                         fnodes.setdefault(f, {}).setdefault(mdata[f], clnode)
                 count[0] += 1
                 self.ui.progress(_('bundling'), count[0],
                                  unit=_('manifests'), total=len(mfs))
                 return mfs[x]
             else:
                 self.ui.progress(
                     _('bundling'), count[0], item=fstate[0],
                     unit=_('files'), total=len(changedfiles))
                 return fstate[1][x]
 
         bundler = changegroup.bundle10(lookup)
 
         def gengroup():
             # Create a changenode group generator that will call our functions
             # back to lookup the owning changenode and collect information.
             for chunk in cl.group(csets, bundler):
                 yield chunk
             self.ui.progress(_('bundling'), None)
 
             # Create a generator for the manifestnodes that calls our lookup
             # and data collection functions back.
             count[0] = 0
             for chunk in mf.group(prune(mf, mfs), bundler):
                 yield chunk
             self.ui.progress(_('bundling'), None)
 
             mfs.clear()
 
             # Go through all our files in order sorted by name.
             count[0] = 0
             for fname in sorted(changedfiles):
                 filerevlog = self.file(fname)
                 if not len(filerevlog):
                     raise util.Abort(_("empty or missing revlog for %s") % fname)
                 fstate[0] = fname
                 fstate[1] = fnodes.pop(fname, {})
                 first = True
 
                 for chunk in filerevlog.group(prune(filerevlog, fstate[1]),
                                               bundler):
                     if first:
                         if chunk == bundler.close():
                             break
                         count[0] += 1
                         yield bundler.fileheader(fname)
                         first = False
                     yield chunk
             # Signal that no more groups are left.
             yield bundler.close()
             self.ui.progress(_('bundling'), None)
 
             if csets:
                 self.hook('outgoing', node=hex(csets[0]), source=source)
 
         return changegroup.unbundle10(util.chunkbuffer(gengroup()), 'UN')
 
     def changegroup(self, basenodes, source):
         # to avoid a race we use changegroupsubset() (issue1320)
         return self.changegroupsubset(basenodes, self.heads(), source)
 
     def _changegroup(self, nodes, source):
         """Compute the changegroup of all nodes that we have that a recipient
         doesn't.  Return a chunkbuffer object whose read() method will return
         successive changegroup chunks.
 
         This is much easier than the previous function as we can assume that
         the recipient has any changenode we aren't sending them.
 
         nodes is the set of nodes to send"""
 
         cl = self.changelog
         mf = self.manifest
         mfs = {}
         changedfiles = set()
         fstate = ['']
         count = [0]
 
         self.hook('preoutgoing', throw=True, source=source)
         self.changegroupinfo(nodes, source)
 
         revset = set([cl.rev(n) for n in nodes])
 
         def gennodelst(log):
             for r in log:
                 if log.linkrev(r) in revset:
                     yield log.node(r)
 
         def lookup(revlog, x):
             if revlog == cl:
                 c = cl.read(x)
                 changedfiles.update(c[3])
                 mfs.setdefault(c[0], x)
                 count[0] += 1
                 self.ui.progress(_('bundling'), count[0], unit=_('changesets'))
                 return x
             elif revlog == mf:
                 count[0] += 1
                 self.ui.progress(_('bundling'), count[0],
                                  unit=_('manifests'), total=len(mfs))
                 return cl.node(revlog.linkrev(revlog.rev(x)))
             else:
                 self.ui.progress(
                     _('bundling'), count[0], item=fstate[0],
                     total=len(changedfiles), unit=_('files'))
                 return cl.node(revlog.linkrev(revlog.rev(x)))
 
         bundler = changegroup.bundle10(lookup)
 
         def gengroup():
             '''yield a sequence of changegroup chunks (strings)'''
             # construct a list of all changed files
 
             for chunk in cl.group(nodes, bundler):
                 yield chunk
             self.ui.progress(_('bundling'), None)
 
             count[0] = 0
             for chunk in mf.group(gennodelst(mf), bundler):
                 yield chunk
             self.ui.progress(_('bundling'), None)
 
             count[0] = 0
             for fname in sorted(changedfiles):
                 filerevlog = self.file(fname)
                 if not len(filerevlog):
                     raise util.Abort(_("empty or missing revlog for %s") % fname)
                 fstate[0] = fname
                 first = True
                 for chunk in filerevlog.group(gennodelst(filerevlog), bundler):
                     if first:
                         if chunk == bundler.close():
                             break
                         count[0] += 1
                         yield bundler.fileheader(fname)
                         first = False
                     yield chunk
             yield bundler.close()
             self.ui.progress(_('bundling'), None)
 
             if nodes:
                 self.hook('outgoing', node=hex(nodes[0]), source=source)
 
         return changegroup.unbundle10(util.chunkbuffer(gengroup()), 'UN')
 
     def addchangegroup(self, source, srctype, url, emptyok=False, lock=None):
         """Add the changegroup returned by source.read() to this repo.
         srctype is a string like 'push', 'pull', or 'unbundle'.  url is
         the URL of the repo where this changegroup is coming from.
         If lock is not None, the function takes ownership of the lock
         and releases it after the changegroup is added.
 
         Return an integer summarizing the change to this repo:
         - nothing changed or no source: 0
         - more heads than before: 1+added heads (2..n)
         - fewer heads than before: -1-removed heads (-2..-n)
         - number of heads stays the same: 1
         """
         def csmap(x):
             self.ui.debug("add changeset %s\n" % short(x))
             return len(cl)
 
         def revmap(x):
             return cl.rev(x)
 
         if not source:
             return 0
 
         self.hook('prechangegroup', throw=True, source=srctype, url=url)
 
         changesets = files = revisions = 0
         efiles = set()
 
         # write changelog data to temp files so concurrent readers will not see
         # inconsistent view
         cl = self.changelog
         cl.delayupdate()
         oldheads = cl.heads()
 
         tr = self.transaction("\n".join([srctype, urlmod.hidepassword(url)]))
         try:
             trp = weakref.proxy(tr)
             # pull off the changeset group
             self.ui.status(_("adding changesets\n"))
             clstart = len(cl)
             class prog(object):
                 step = _('changesets')
                 count = 1
                 ui = self.ui
                 total = None
                 def __call__(self):
                     self.ui.progress(self.step, self.count, unit=_('chunks'),
                                      total=self.total)
                     self.count += 1
             pr = prog()
             source.callback = pr
 
             if (cl.addgroup(source, csmap, trp) is None
                 and not emptyok):
                 raise util.Abort(_("received changelog group is empty"))
             clend = len(cl)
             changesets = clend - clstart
             for c in xrange(clstart, clend):
                 efiles.update(self[c].files())
             efiles = len(efiles)
             self.ui.progress(_('changesets'), None)
 
             # pull off the manifest group
             self.ui.status(_("adding manifests\n"))
             pr.step = _('manifests')
             pr.count = 1
             pr.total = changesets # manifests <= changesets
             # no need to check for empty manifest group here:
             # if the result of the merge of 1 and 2 is the same in 3 and 4,
             # no new manifest will be created and the manifest group will
             # be empty during the pull
             self.manifest.addgroup(source, revmap, trp)
             self.ui.progress(_('manifests'), None)
 
             needfiles = {}
             if self.ui.configbool('server', 'validate', default=False):
                 # validate incoming csets have their manifests
                 for cset in xrange(clstart, clend):
                     mfest = self.changelog.read(self.changelog.node(cset))[0]
                     mfest = self.manifest.readdelta(mfest)
                     # store file nodes we must see
                     for f, n in mfest.iteritems():
                         needfiles.setdefault(f, set()).add(n)
 
             # process the files
             self.ui.status(_("adding file changes\n"))
             pr.step = 'files'
             pr.count = 1
             pr.total = efiles
             source.callback = None
 
             while 1:
                 f = source.chunk()
                 if not f:
                     break
                 self.ui.debug("adding %s revisions\n" % f)
                 pr()
                 fl = self.file(f)
                 o = len(fl)
                 if fl.addgroup(source, revmap, trp) is None:
                     raise util.Abort(_("received file revlog group is empty"))
                 revisions += len(fl) - o
                 files += 1
                 if f in needfiles:
                     needs = needfiles[f]
                     for new in xrange(o, len(fl)):
                         n = fl.node(new)
                         if n in needs:
                             needs.remove(n)
                     if not needs:
                         del needfiles[f]
             self.ui.progress(_('files'), None)
 
             for f, needs in needfiles.iteritems():
                 fl = self.file(f)
                 for n in needs:
                     try:
                         fl.rev(n)
                     except error.LookupError:
                         raise util.Abort(
                             _('missing file data for %s:%s - run hg verify') %
                             (f, hex(n)))
 
             dh = 0
             if oldheads:
                 heads = cl.heads()
                 dh = len(heads) - len(oldheads)
                 for h in heads:
                     if h not in oldheads and 'close' in self[h].extra():
                         dh -= 1
             htext = ""
             if dh:
                 htext = _(" (%+d heads)") % dh
 
             self.ui.status(_("added %d changesets"
                              " with %d changes to %d files%s\n")
                              % (changesets, revisions, files, htext))
 
             if changesets > 0:
                 p = lambda: cl.writepending() and self.root or ""
                 self.hook('pretxnchangegroup', throw=True,
                           node=hex(cl.node(clstart)), source=srctype,
                           url=url, pending=p)
 
             # make changelog see real files again
             cl.finalize(trp)
 
             tr.close()
         finally:
             tr.release()
             if lock:
                 lock.release()
 
         if changesets > 0:
             # forcefully update the on-disk branch cache
             self.ui.debug("updating the branch cache\n")
             self.updatebranchcache()
             self.hook("changegroup", node=hex(cl.node(clstart)),
                       source=srctype, url=url)
 
             for i in xrange(clstart, clend):
                 self.hook("incoming", node=hex(cl.node(i)),
                           source=srctype, url=url)
 
         # never return 0 here:
         if dh < 0:
             return dh - 1
         else:
             return dh + 1
 
     def stream_in(self, remote, requirements):
         lock = self.lock()
         try:
             fp = remote.stream_out()
             l = fp.readline()
             try:
                 resp = int(l)
             except ValueError:
                 raise error.ResponseError(
                     _('Unexpected response from remote server:'), l)
             if resp == 1:
                 raise util.Abort(_('operation forbidden by server'))
             elif resp == 2:
                 raise util.Abort(_('locking the remote repository failed'))
             elif resp != 0:
                 raise util.Abort(_('the server sent an unknown error code'))
             self.ui.status(_('streaming all changes\n'))
             l = fp.readline()
             try:
                 total_files, total_bytes = map(int, l.split(' ', 1))
             except (ValueError, TypeError):
                 raise error.ResponseError(
                     _('Unexpected response from remote server:'), l)
             self.ui.status(_('%d files to transfer, %s of data\n') %
                            (total_files, util.bytecount(total_bytes)))
             start = time.time()
             for i in xrange(total_files):
                 # XXX doesn't support '\n' or '\r' in filenames
                 l = fp.readline()
                 try:
                     name, size = l.split('\0', 1)
                     size = int(size)
                 except (ValueError, TypeError):
                     raise error.ResponseError(
                         _('Unexpected response from remote server:'), l)
                 self.ui.debug('adding %s (%s)\n' % (name, util.bytecount(size)))
                 # for backwards compat, name was partially encoded
                 ofp = self.sopener(store.decodedir(name), 'w')
                 for chunk in util.filechunkiter(fp, limit=size):
                     ofp.write(chunk)
                 ofp.close()
             elapsed = time.time() - start
             if elapsed <= 0:
                 elapsed = 0.001
             self.ui.status(_('transferred %s in %.1f seconds (%s/sec)\n') %
                            (util.bytecount(total_bytes), elapsed,
                             util.bytecount(total_bytes / elapsed)))
 
             # new requirements = old non-format requirements + new format-related
             # requirements from the streamed-in repository
             requirements.update(set(self.requirements) - self.supportedformats)
             self._applyrequirements(requirements)
             self._writerequirements()
 
             self.invalidate()
             return len(self.heads()) + 1
         finally:
             lock.release()
 
     def clone(self, remote, heads=[], stream=False):
         '''clone remote repository.
 
         keyword arguments:
         heads: list of revs to clone (forces use of pull)
         stream: use streaming clone if possible'''
 
         # now, all clients that can request uncompressed clones can
         # read repo formats supported by all servers that can serve
         # them.
 
         # if revlog format changes, client will have to check version
         # and format flags on "stream" capability, and use
         # uncompressed only if compatible.
 
         if stream and not heads:
             # 'stream' means remote revlog format is revlogv1 only
             if remote.capable('stream'):
                 return self.stream_in(remote, set(('revlogv1',)))
             # otherwise, 'streamreqs' contains the remote revlog format
             streamreqs = remote.capable('streamreqs')
             if streamreqs:
                 streamreqs = set(streamreqs.split(','))
                 # if we support it, stream in and adjust our requirements
                 if not streamreqs - self.supportedformats:
                     return self.stream_in(remote, streamreqs)
         return self.pull(remote, heads)
 
     def pushkey(self, namespace, key, old, new):
         return pushkey.push(self, namespace, key, old, new)
 
     def listkeys(self, namespace):
         return pushkey.list(self, namespace)
 
     def debugwireargs(self, one, two, three=None, four=None, five=None):
         '''used to test argument passing over the wire'''
         return "%s %s %s %s %s" % (one, two, three, four, five)
 
 # used to avoid circular references so destructors work
 def aftertrans(files):
     renamefiles = [tuple(t) for t in files]
     def a():
         for src, dest in renamefiles:
             util.rename(src, dest)
     return a
 
 def instance(ui, path, create):
     return localrepository(ui, urlmod.localpath(path), create)
 
 def islocal(path):
     return True

mercurial/revset.py

@@ -1,909 +1,909
 # revset.py - revision set queries for mercurial
 #
 # Copyright 2010 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 import re
 import parser, util, error, discovery, help, hbisect
 import bookmarks as bookmarksmod
 import match as matchmod
 from i18n import _
 
 elements = {
     "(": (20, ("group", 1, ")"), ("func", 1, ")")),
     "~": (18, None, ("ancestor", 18)),
     "^": (18, None, ("parent", 18), ("parentpost", 18)),
     "-": (5, ("negate", 19), ("minus", 5)),
     "::": (17, ("dagrangepre", 17), ("dagrange", 17),
            ("dagrangepost", 17)),
     "..": (17, ("dagrangepre", 17), ("dagrange", 17),
            ("dagrangepost", 17)),
     ":": (15, ("rangepre", 15), ("range", 15), ("rangepost", 15)),
     "not": (10, ("not", 10)),
     "!": (10, ("not", 10)),
     "and": (5, None, ("and", 5)),
     "&": (5, None, ("and", 5)),
     "or": (4, None, ("or", 4)),
     "|": (4, None, ("or", 4)),
     "+": (4, None, ("or", 4)),
     ",": (2, None, ("list", 2)),
     ")": (0, None, None),
     "symbol": (0, ("symbol",), None),
     "string": (0, ("string",), None),
     "end": (0, None, None),
 }
 
 keywords = set(['and', 'or', 'not'])
 
 def tokenize(program):
     pos, l = 0, len(program)
     while pos < l:
         c = program[pos]
         if c.isspace(): # skip inter-token whitespace
             pass
         elif c == ':' and program[pos:pos + 2] == '::': # look ahead carefully
             yield ('::', None, pos)
             pos += 1 # skip ahead
         elif c == '.' and program[pos:pos + 2] == '..': # look ahead carefully
             yield ('..', None, pos)
             pos += 1 # skip ahead
         elif c in "():,-|&+!~^": # handle simple operators
             yield (c, None, pos)
         elif (c in '"\'' or c == 'r' and
               program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings
             if c == 'r':
                 pos += 1
                 c = program[pos]
                 decode = lambda x: x
             else:
                 decode = lambda x: x.decode('string-escape')
             pos += 1
             s = pos
             while pos < l: # find closing quote
                 d = program[pos]
                 if d == '\\': # skip over escaped characters
                     pos += 2
                     continue
                 if d == c:
                     yield ('string', decode(program[s:pos]), s)
                     break
                 pos += 1
             else:
                 raise error.ParseError(_("unterminated string"), s)
         elif c.isalnum() or c in '._' or ord(c) > 127: # gather up a symbol/keyword
             s = pos
             pos += 1
             while pos < l: # find end of symbol
                 d = program[pos]
                 if not (d.isalnum() or d in "._" or ord(d) > 127):
                     break
                 if d == '.' and program[pos - 1] == '.': # special case for ..
                     pos -= 1
                     break
                 pos += 1
             sym = program[s:pos]
             if sym in keywords: # operator keywords
                 yield (sym, None, s)
             else:
                 yield ('symbol', sym, s)
             pos -= 1
         else:
             raise error.ParseError(_("syntax error"), pos)
         pos += 1
     yield ('end', None, pos)
 
 # helpers
 
 def getstring(x, err):
     if x and (x[0] == 'string' or x[0] == 'symbol'):
         return x[1]
     raise error.ParseError(err)
 
 def getlist(x):
     if not x:
         return []
     if x[0] == 'list':
         return getlist(x[1]) + [x[2]]
     return [x]
 
 def getargs(x, min, max, err):
     l = getlist(x)
     if len(l) < min or len(l) > max:
         raise error.ParseError(err)
     return l
 
 def getset(repo, subset, x):
     if not x:
         raise error.ParseError(_("missing argument"))
     return methods[x[0]](repo, subset, *x[1:])
 
 # operator methods
 
 def stringset(repo, subset, x):
     x = repo[x].rev()
     if x == -1 and len(subset) == len(repo):
         return [-1]
     if len(subset) == len(repo) or x in subset:
         return [x]
     return []
 
 def symbolset(repo, subset, x):
     if x in symbols:
         raise error.ParseError(_("can't use %s here") % x)
     return stringset(repo, subset, x)
 
 def rangeset(repo, subset, x, y):
     m = getset(repo, subset, x)
     if not m:
         m = getset(repo, range(len(repo)), x)
 
     n = getset(repo, subset, y)
     if not n:
         n = getset(repo, range(len(repo)), y)
 
     if not m or not n:
         return []
     m, n = m[0], n[-1]
 
     if m < n:
         r = range(m, n + 1)
     else:
         r = range(m, n - 1, -1)
     s = set(subset)
     return [x for x in r if x in s]
 
 def andset(repo, subset, x, y):
     return getset(repo, getset(repo, subset, x), y)
 
 def orset(repo, subset, x, y):
     xl = getset(repo, subset, x)
     s = set(xl)
     yl = getset(repo, [r for r in subset if r not in s], y)
     return xl + yl
 
 def notset(repo, subset, x):
     s = set(getset(repo, subset, x))
     return [r for r in subset if r not in s]
 
 def listset(repo, subset, a, b):
     raise error.ParseError(_("can't use a list in this context"))
 
 def func(repo, subset, a, b):
     if a[0] == 'symbol' and a[1] in symbols:
         return symbols[a[1]](repo, subset, b)
     raise error.ParseError(_("not a function: %s") % a[1])
 
 # functions
 
 def adds(repo, subset, x):
     """``adds(pattern)``
     Changesets that add a file matching pattern.
     """
     # i18n: "adds" is a keyword
     pat = getstring(x, _("adds requires a pattern"))
     return checkstatus(repo, subset, pat, 1)
 
 def ancestor(repo, subset, x):
     """``ancestor(single, single)``
     Greatest common ancestor of the two changesets.
     """
     # i18n: "ancestor" is a keyword
     l = getargs(x, 2, 2, _("ancestor requires two arguments"))
     r = range(len(repo))
     a = getset(repo, r, l[0])
     b = getset(repo, r, l[1])
     if len(a) != 1 or len(b) != 1:
         # i18n: "ancestor" is a keyword
         raise error.ParseError(_("ancestor arguments must be single revisions"))
     an = [repo[a[0]].ancestor(repo[b[0]]).rev()]
 
     return [r for r in an if r in subset]
 
 def ancestors(repo, subset, x):
     """``ancestors(set)``
     Changesets that are ancestors of a changeset in set.
     """
     args = getset(repo, range(len(repo)), x)
     if not args:
         return []
     s = set(repo.changelog.ancestors(*args)) | set(args)
     return [r for r in subset if r in s]
 
 def ancestorspec(repo, subset, x, n):
     """``set~n``
     Changesets that are the Nth ancestor (first parents only) of a changeset in set.
     """
     try:
         n = int(n[1])
     except ValueError:
         raise error.ParseError(_("~ expects a number"))
     ps = set()
     cl = repo.changelog
     for r in getset(repo, subset, x):
         for i in range(n):
             r = cl.parentrevs(r)[0]
         ps.add(r)
     return [r for r in subset if r in ps]
 
 def author(repo, subset, x):
     """``author(string)``
     Alias for ``user(string)``.
     """
     # i18n: "author" is a keyword
     n = getstring(x, _("author requires a string")).lower()
     return [r for r in subset if n in repo[r].user().lower()]
 
 def bisected(repo, subset, x):
     """``bisected(string)``
     Changesets marked in the specified bisect state (good, bad, skip).
     """
     state = getstring(x, _("bisect requires a string")).lower()
     if state not in ('good', 'bad', 'skip', 'unknown'):
         raise error.ParseError(_('invalid bisect state'))
     marked = set(repo.changelog.rev(n) for n in hbisect.load_state(repo)[state])
     return [r for r in subset if r in marked]
 
 def bookmark(repo, subset, x):
     """``bookmark([name])``
     The named bookmark or all bookmarks.
     """
     # i18n: "bookmark" is a keyword
     args = getargs(x, 0, 1, _('bookmark takes one or no arguments'))
     if args:
         bm = getstring(args[0],
                        # i18n: "bookmark" is a keyword
                        _('the argument to bookmark must be a string'))
         bmrev = bookmarksmod.listbookmarks(repo).get(bm, None)
         if not bmrev:
             raise util.Abort(_("bookmark '%s' does not exist") % bm)
         bmrev = repo[bmrev].rev()
         return [r for r in subset if r == bmrev]
     bms = set([repo[r].rev()
                for r in bookmarksmod.listbookmarks(repo).values()])
     return [r for r in subset if r in bms]
 
 def branch(repo, subset, x):
     """``branch(string or set)``
     All changesets belonging to the given branch or the branches of the given
     changesets.
     """
     try:
         b = getstring(x, '')
         if b in repo.branchmap():
             return [r for r in subset if repo[r].branch() == b]
     except error.ParseError:
         # not a string, but another revspec, e.g. tip()
         pass
 
     s = getset(repo, range(len(repo)), x)
     b = set()
     for r in s:
         b.add(repo[r].branch())
     s = set(s)
     return [r for r in subset if r in s or repo[r].branch() in b]
 
 def checkstatus(repo, subset, pat, field):
     m = matchmod.match(repo.root, repo.getcwd(), [pat])
     s = []
     fast = (m.files() == [pat])
     for r in subset:
         c = repo[r]
         if fast:
             if pat not in c.files():
                 continue
         else:
             for f in c.files():
                 if m(f):
                     break
             else:
                 continue
         files = repo.status(c.p1().node(), c.node())[field]
         if fast:
             if pat in files:
                 s.append(r)
         else:
             for f in files:
                 if m(f):
                     s.append(r)
                     break
     return s
 
 def children(repo, subset, x):
     """``children(set)``
     Child changesets of changesets in set.
     """
     cs = set()
     cl = repo.changelog
     s = set(getset(repo, range(len(repo)), x))
     for r in xrange(0, len(repo)):
         for p in cl.parentrevs(r):
             if p in s:
                 cs.add(r)
     return [r for r in subset if r in cs]
 
 def closed(repo, subset, x):
     """``closed()``
     Changeset is closed.
     """
     # i18n: "closed" is a keyword
     getargs(x, 0, 0, _("closed takes no arguments"))
     return [r for r in subset if repo[r].extra().get('close')]
 
 def contains(repo, subset, x):
     """``contains(pattern)``
     Revision contains pattern.
     """
     # i18n: "contains" is a keyword
     pat = getstring(x, _("contains requires a pattern"))
     m = matchmod.match(repo.root, repo.getcwd(), [pat])
     s = []
     if m.files() == [pat]:
         for r in subset:
             if pat in repo[r]:
                 s.append(r)
     else:
         for r in subset:
             for f in repo[r].manifest():
                 if m(f):
                     s.append(r)
                     break
     return s
 
 def date(repo, subset, x):
     """``date(interval)``
     Changesets within the interval, see :hg:`help dates`.
     """
     # i18n: "date" is a keyword
     ds = getstring(x, _("date requires a string"))
     dm = util.matchdate(ds)
     return [r for r in subset if dm(repo[r].date()[0])]
 
 def descendants(repo, subset, x):
     """``descendants(set)``
     Changesets which are descendants of changesets in set.
     """
     args = getset(repo, range(len(repo)), x)
     if not args:
         return []
     s = set(repo.changelog.descendants(*args)) | set(args)
     return [r for r in subset if r in s]
 
 def follow(repo, subset, x):
     """``follow()``
     An alias for ``::.`` (ancestors of the working copy's first parent).
     """
     # i18n: "follow" is a keyword
     getargs(x, 0, 0, _("follow takes no arguments"))
     p = repo['.'].rev()
     s = set(repo.changelog.ancestors(p)) | set([p])
     return [r for r in subset if r in s]
 
 def getall(repo, subset, x):
     """``all()``
     All changesets, the same as ``0:tip``.
     """
     # i18n: "all" is a keyword
     getargs(x, 0, 0, _("all takes no arguments"))
     return subset
 
 def grep(repo, subset, x):
     """``grep(regex)``
     Like ``keyword(string)`` but accepts a regex. Use ``grep(r'...')``
     to ensure special escape characters are handled correctly.
     """
     try:
         # i18n: "grep" is a keyword
         gr = re.compile(getstring(x, _("grep requires a string")))
     except re.error, e:
         raise error.ParseError(_('invalid match pattern: %s') % e)
     l = []
     for r in subset:
         c = repo[r]
         for e in c.files() + [c.user(), c.description()]:
             if gr.search(e):
                 l.append(r)
                 break
     return l
 
 def hasfile(repo, subset, x):
     """``file(pattern)``
     Changesets affecting files matched by pattern.
     """
     # i18n: "file" is a keyword
     pat = getstring(x, _("file requires a pattern"))
     m = matchmod.match(repo.root, repo.getcwd(), [pat])
     s = []
     for r in subset:
         for f in repo[r].files():
             if m(f):
                 s.append(r)
                 break
     return s
 
 def head(repo, subset, x):
     """``head()``
     Changeset is a named branch head.
     """
     # i18n: "head" is a keyword
     getargs(x, 0, 0, _("head takes no arguments"))
     hs = set()
     for b, ls in repo.branchmap().iteritems():
         hs.update(repo[h].rev() for h in ls)
     return [r for r in subset if r in hs]
 
 def heads(repo, subset, x):
     """``heads(set)``
     Members of set with no children in set.
     """
     s = getset(repo, subset, x)
     ps = set(parents(repo, subset, x))
     return [r for r in s if r not in ps]
 
 def keyword(repo, subset, x):
     """``keyword(string)``
     Search commit message, user name, and names of changed files for
     string.
     """
     # i18n: "keyword" is a keyword
     kw = getstring(x, _("keyword requires a string")).lower()
     l = []
     for r in subset:
         c = repo[r]
         t = " ".join(c.files() + [c.user(), c.description()])
         if kw in t.lower():
             l.append(r)
     return l
 
 def limit(repo, subset, x):
     """``limit(set, n)``
     First n members of set.
     """
     # i18n: "limit" is a keyword
     l = getargs(x, 2, 2, _("limit requires two arguments"))
     try:
         # i18n: "limit" is a keyword
         lim = int(getstring(l[1], _("limit requires a number")))
     except ValueError:
         # i18n: "limit" is a keyword
         raise error.ParseError(_("limit expects a number"))
     return getset(repo, subset, l[0])[:lim]
 
 def last(repo, subset, x):
     """``last(set, n)``
     Last n members of set.
     """
     # i18n: "last" is a keyword
     l = getargs(x, 2, 2, _("last requires two arguments"))
     try:
         # i18n: "last" is a keyword
         lim = int(getstring(l[1], _("last requires a number")))
     except ValueError:
         # i18n: "last" is a keyword
         raise error.ParseError(_("last expects a number"))
     return getset(repo, subset, l[0])[-lim:]
 
 def maxrev(repo, subset, x):
     """``max(set)``
     Changeset with highest revision number in set.
     """
     s = getset(repo, subset, x)
     if s:
         m = max(s)
         if m in subset:
             return [m]
     return []
 
 def merge(repo, subset, x):
     """``merge()``
     Changeset is a merge changeset.
     """
     # i18n: "merge" is a keyword
     getargs(x, 0, 0, _("merge takes no arguments"))
     cl = repo.changelog
     return [r for r in subset if cl.parentrevs(r)[1] != -1]
 
 def minrev(repo, subset, x):
     """``min(set)``
     Changeset with lowest revision number in set.
     """
     s = getset(repo, subset, x)
     if s:
         m = min(s)
         if m in subset:
             return [m]
     return []
 
 def modifies(repo, subset, x):
     """``modifies(pattern)``
     Changesets modifying files matched by pattern.
     """
     # i18n: "modifies" is a keyword
     pat = getstring(x, _("modifies requires a pattern"))
     return checkstatus(repo, subset, pat, 0)
 
 def node(repo, subset, x):
     """``id(string)``
     Revision non-ambiguously specified by the given hex string prefix.
     """
     # i18n: "id" is a keyword
     l = getargs(x, 1, 1, _("id requires one argument"))
     # i18n: "id" is a keyword
     n = getstring(l[0], _("id requires a string"))
     if len(n) == 40:
         rn = repo[n].rev()
     else:
         rn = repo.changelog.rev(repo.changelog._partialmatch(n))
     return [r for r in subset if r == rn]
 
 def outgoing(repo, subset, x):
     """``outgoing([path])``
     Changesets not found in the specified destination repository, or the
     default push location.
     """
     import hg # avoid start-up nasties
     # i18n: "outgoing" is a keyword
     l = getargs(x, 0, 1, _("outgoing requires a repository path"))
     # i18n: "outgoing" is a keyword
     dest = l and getstring(l[0], _("outgoing requires a repository path")) or ''
     dest = repo.ui.expandpath(dest or 'default-push', dest or 'default')
     dest, branches = hg.parseurl(dest)
     revs, checkout = hg.addbranchrevs(repo, repo, branches, [])
     if revs:
         revs = [repo.lookup(rev) for rev in revs]
     other = hg.repository(hg.remoteui(repo, {}), dest)
     repo.ui.pushbuffer()
-    o = discovery.findoutgoing(repo, other)
+    common, _anyinc, _heads = discovery.findcommonincoming(repo, other)
     repo.ui.popbuffer()
     cl = repo.changelog
-    o = set([cl.rev(r) for r in repo.changelog.nodesbetween(o, revs)[0]])
+    o = set([cl.rev(r) for r in repo.changelog.findmissing(common, revs)])
     return [r for r in subset if r in o]
 
 def p1(repo, subset, x):
     """``p1([set])``
     First parent of changesets in set, or the working directory.
     """
     if x is None:
         p = repo[x].p1().rev()
         return [r for r in subset if r == p]
 
     ps = set()
     cl = repo.changelog
     for r in getset(repo, range(len(repo)), x):
         ps.add(cl.parentrevs(r)[0])
     return [r for r in subset if r in ps]
 
 def p2(repo, subset, x):
     """``p2([set])``
     Second parent of changesets in set, or the working directory.
     """
     if x is None:
         ps = repo[x].parents()
         try:
             p = ps[1].rev()
             return [r for r in subset if r == p]
         except IndexError:
             return []
 
     ps = set()
     cl = repo.changelog
     for r in getset(repo, range(len(repo)), x):
         ps.add(cl.parentrevs(r)[1])
     return [r for r in subset if r in ps]
 
 def parents(repo, subset, x):
     """``parents([set])``
     The set of all parents for all changesets in set, or the working directory.
     """
     if x is None:
         ps = tuple(p.rev() for p in repo[x].parents())
         return [r for r in subset if r in ps]
 
     ps = set()
     cl = repo.changelog
     for r in getset(repo, range(len(repo)), x):
         ps.update(cl.parentrevs(r))
     return [r for r in subset if r in ps]
 
 def parentspec(repo, subset, x, n):
     """``set^0``
     The set.
     ``set^1`` (or ``set^``), ``set^2``
     First or second parent, respectively, of all changesets in set.
     """
     try:
         n = int(n[1])
         if n not in (0, 1, 2):
             raise ValueError
     except ValueError:
         raise error.ParseError(_("^ expects a number 0, 1, or 2"))
     ps = set()
     cl = repo.changelog
     for r in getset(repo, subset, x):
         if n == 0:
             ps.add(r)
         elif n == 1:
             ps.add(cl.parentrevs(r)[0])
         elif n == 2:
             parents = cl.parentrevs(r)
             if len(parents) > 1:
                 ps.add(parents[1])
     return [r for r in subset if r in ps]
 
 def present(repo, subset, x):
     """``present(set)``
     An empty set, if any revision in set isn't found; otherwise,
     all revisions in set.
     """
     try:
         return getset(repo, subset, x)
     except error.RepoLookupError:
         return []
 
 def removes(repo, subset, x):
     """``removes(pattern)``
     Changesets which remove files matching pattern.
     """
     # i18n: "removes" is a keyword
     pat = getstring(x, _("removes requires a pattern"))
     return checkstatus(repo, subset, pat, 2)
 
 def rev(repo, subset, x):
     """``rev(number)``
     Revision with the given numeric identifier.
     """
     # i18n: "rev" is a keyword
     l = getargs(x, 1, 1, _("rev requires one argument"))
     try:
         # i18n: "rev" is a keyword
         l = int(getstring(l[0], _("rev requires a number")))
     except ValueError:
         # i18n: "rev" is a keyword
         raise error.ParseError(_("rev expects a number"))
     return [r for r in subset if r == l]
 
 def reverse(repo, subset, x):
     """``reverse(set)``
     Reverse order of set.
     """
     l = getset(repo, subset, x)
     l.reverse()
     return l
 
 def roots(repo, subset, x):
     """``roots(set)``
     Changesets with no parent changeset in set.
     """
     s = getset(repo, subset, x)
     cs = set(children(repo, subset, x))
     return [r for r in s if r not in cs]
 
 def sort(repo, subset, x):
     """``sort(set[, [-]key...])``
     Sort set by keys. The default sort order is ascending, specify a key
     as ``-key`` to sort in descending order.
 
     The keys can be:
 
     - ``rev`` for the revision number,
     - ``branch`` for the branch name,
     - ``desc`` for the commit message (description),
     - ``user`` for user name (``author`` can be used as an alias),
     - ``date`` for the commit date
     """
     # i18n: "sort" is a keyword
     l = getargs(x, 1, 2, _("sort requires one or two arguments"))
     keys = "rev"
     if len(l) == 2:
         keys = getstring(l[1], _("sort spec must be a string"))
 
     s = l[0]
     keys = keys.split()
     l = []
     def invert(s):
         return "".join(chr(255 - ord(c)) for c in s)
     for r in getset(repo, subset, s):
         c = repo[r]
         e = []
         for k in keys:
             if k == 'rev':
                 e.append(r)
             elif k == '-rev':
                 e.append(-r)
             elif k == 'branch':
                 e.append(c.branch())
             elif k == '-branch':
                 e.append(invert(c.branch()))
             elif k == 'desc':
                 e.append(c.description())
             elif k == '-desc':
                 e.append(invert(c.description()))
             elif k in 'user author':
                 e.append(c.user())
             elif k in '-user -author':
                 e.append(invert(c.user()))
             elif k == 'date':
                 e.append(c.date()[0])
             elif k == '-date':
                 e.append(-c.date()[0])
             else:
                 raise error.ParseError(_("unknown sort key %r") % k)
         e.append(r)
         l.append(e)
     l.sort()
     return [e[-1] for e in l]
 
 def tag(repo, subset, x):
     """``tag(name)``
     The specified tag by name, or all tagged revisions if no name is given.
     """
     # i18n: "tag" is a keyword
     args = getargs(x, 0, 1, _("tag takes one or no arguments"))
     cl = repo.changelog
     if args:
         tn = getstring(args[0],
                        # i18n: "tag" is a keyword
                        _('the argument to tag must be a string'))
         if not repo.tags().get(tn, None):
             raise util.Abort(_("tag '%s' does not exist") % tn)
         s = set([cl.rev(n) for t, n in repo.tagslist() if t == tn])
     else:
         s = set([cl.rev(n) for t, n in repo.tagslist() if t != 'tip'])
     return [r for r in subset if r in s]
 
 def tagged(repo, subset, x):
     return tag(repo, subset, x)
 
 def user(repo, subset, x):
     """``user(string)``
     User name is string.
     """
     return author(repo, subset, x)
 
 symbols = {
     "adds": adds,
     "all": getall,
     "ancestor": ancestor,
     "ancestors": ancestors,
     "author": author,
     "bisected": bisected,
     "bookmark": bookmark,
     "branch": branch,
     "children": children,
     "closed": closed,
     "contains": contains,
     "date": date,
     "descendants": descendants,
     "file": hasfile,
     "follow": follow,
     "grep": grep,
     "head": head,
     "heads": heads,
     "keyword": keyword,
     "last": last,
     "limit": limit,
     "max": maxrev,
     "min": minrev,
     "merge": merge,
     "modifies": modifies,
     "id": node,
     "outgoing": outgoing,
     "p1": p1,
     "p2": p2,
     "parents": parents,
     "present": present,
     "removes": removes,
     "reverse": reverse,
     "rev": rev,
     "roots": roots,
     "sort": sort,
     "tag": tag,
     "tagged": tagged,
     "user": user,
 }
 
 methods = {
     "range": rangeset,
     "string": stringset,
     "symbol": symbolset,
     "and": andset,
     "or": orset,
     "not": notset,
     "list": listset,
     "func": func,
     "ancestor": ancestorspec,
     "parent": parentspec,
     "parentpost": p1,
 }
 
 def optimize(x, small):
     if x is None:
         return 0, x
 
     smallbonus = 1
     if small:
         smallbonus = .5
 
     op = x[0]
     if op == 'minus':
         return optimize(('and', x[1], ('not', x[2])), small)
     elif op == 'dagrange':
         return optimize(('and', ('func', ('symbol', 'descendants'), x[1]),
                          ('func', ('symbol', 'ancestors'), x[2])), small)
     elif op == 'dagrangepre':
         return optimize(('func', ('symbol', 'ancestors'), x[1]), small)
     elif op == 'dagrangepost':
         return optimize(('func', ('symbol', 'descendants'), x[1]), small)
     elif op == 'rangepre':
         return optimize(('range', ('string', '0'), x[1]), small)
     elif op == 'rangepost':
         return optimize(('range', x[1], ('string', 'tip')), small)
     elif op == 'negate':
         return optimize(('string',
                          '-' + getstring(x[1], _("can't negate that"))), small)
     elif op in 'string symbol negate':
         return smallbonus, x # single revisions are small
     elif op == 'and' or op == 'dagrange':
         wa, ta = optimize(x[1], True)
         wb, tb = optimize(x[2], True)
         w = min(wa, wb)
         if wa > wb:
             return w, (op, tb, ta)
         return w, (op, ta, tb)
     elif op == 'or':
         wa, ta = optimize(x[1], False)
         wb, tb = optimize(x[2], False)
         if wb < wa:
             wb, wa = wa, wb
         return max(wa, wb), (op, ta, tb)
     elif op == 'not':
         o = optimize(x[1], not small)
         return o[0], (op, o[1])
     elif op == 'parentpost':
         o = optimize(x[1], small)
         return o[0], (op, o[1])
     elif op == 'group':
         return optimize(x[1], small)
     elif op in 'range list parent ancestorspec':
         wa, ta = optimize(x[1], small)
         wb, tb = optimize(x[2], small)
         return wa + wb, (op, ta, tb)
     elif op == 'func':
         f = getstring(x[1], _("not a symbol"))
         wa, ta = optimize(x[2], small)
         if f in "grep date user author keyword branch file outgoing closed":
             w = 10 # slow
         elif f in "modifies adds removes":
             w = 30 # slower
         elif f == "contains":
             w = 100 # very slow
         elif f == "ancestor":
             w = 1 * smallbonus
         elif f in "reverse limit":
             w = 0
         elif f in "sort":
             w = 10 # assume most sorts look at changelog
         else:
             w = 1
         return w + wa, (op, x[1], ta)
     return 1, x
 
 parse = parser.parser(tokenize, elements).parse
 
 def match(spec):
     if not spec:
         raise error.ParseError(_("empty query"))
     tree, pos = parse(spec)
     if (pos != len(spec)):
         raise error.ParseError("invalid token", pos)
     weight, tree = optimize(tree, True)
     def mfunc(repo, subset):
         return getset(repo, subset, tree)
     return mfunc
 
 def makedoc(topic, doc):
     return help.makeitemsdoc(topic, doc, '.. predicatesmarker', symbols)
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = symbols.values()

tests/test-acl.t

@@ -1,1895 +1,1870
   > do_push()
   > {
   >     user=$1
   >     shift
   >     echo "Pushing as user $user"
   >     echo 'hgrc = """'
   >     sed -e 1,2d b/.hg/hgrc | grep -v fakegroups.py
   >     echo '"""'
   >     if test -f acl.config; then
   >         echo 'acl.config = """'
   >         cat acl.config
   >         echo '"""'
   >     fi
   >     # On AIX /etc/profile sets LOGNAME read-only. So
   >     #  LOGNAME=$user hg --cws a --debug push ../b
   >     # fails with "This variable is read only."
   >     # Use env to work around this.
   >     env LOGNAME=$user hg --cwd a --debug push ../b
   >     hg --cwd b rollback
   >     hg --cwd b --quiet tip
   >     echo
   > }
 
   > init_config()
   > {
   >     cat > fakegroups.py <<EOF
   > from hgext import acl
   > def fakegetusers(ui, group):
   >     try:
   >         return acl._getusersorig(ui, group)
   >     except:
   >         return ["fred", "betty"]
   > acl._getusersorig = acl._getusers
   > acl._getusers = fakegetusers
   > EOF
   >     rm -f acl.config
   >     cat > $config <<EOF
   > [hooks]
   > pretxnchangegroup.acl = python:hgext.acl.hook
   > [acl]
   > sources = push
   > [extensions]
   > f=`pwd`/fakegroups.py
   > EOF
   > }
 
   $ hg init a
   $ cd a
   $ mkdir foo foo/Bar quux
   $ echo 'in foo' > foo/file.txt
   $ echo 'in foo/Bar' > foo/Bar/file.txt
   $ echo 'in quux' > quux/file.py
   $ hg add -q
   $ hg ci -m 'add files' -d '1000000 0'
   $ echo >> foo/file.txt
   $ hg ci -m 'change foo/file' -d '1000001 0'
   $ echo >> foo/Bar/file.txt
   $ hg ci -m 'change foo/Bar/file' -d '1000002 0'
   $ echo >> quux/file.py
   $ hg ci -m 'change quux/file' -d '1000003 0'
   $ hg tip --quiet
   3:911600dab2ae
 
   $ cd ..
   $ hg clone -r 0 a b
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 3 changes to 3 files
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ echo '[extensions]' >> $HGRCPATH
   $ echo 'acl =' >> $HGRCPATH
 
   $ config=b/.hg/hgrc
 
 Extension disabled for lack of a hook
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
   $ echo '[hooks]' >> $config
   $ echo 'pretxnchangegroup.acl = python:hgext.acl.hook' >> $config
 
 Extension disabled for lack of acl.sources
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: changes have source "push" - skipping
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
 No [acl.allow]/[acl.deny]
 
   $ echo '[acl]' >> $config
   $ echo 'sources = push' >> $config
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
 Empty [acl.allow]
 
   $ echo '[acl.allow]' >> $config
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 0 entries for user fred
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: user fred not allowed on foo/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset ef1ea85a6374
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset ef1ea85a6374
   no rollback information available
   0:6675d58eff77
   
 
 fred is allowed inside foo/
 
   $ echo 'foo/** = fred' >> $config
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: user fred not allowed on quux/file.py
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset 911600dab2ae
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset 911600dab2ae
   no rollback information available
   0:6675d58eff77
   
 
 Empty [acl.deny]
 
   $ echo '[acl.deny]' >> $config
   $ do_push barney
   Pushing as user barney
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 0 entries for user barney
   acl: acl.deny enabled, 0 entries for user barney
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: user barney not allowed on foo/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset ef1ea85a6374
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset ef1ea85a6374
   no rollback information available
   0:6675d58eff77
   
 
 fred is allowed inside foo/, but not foo/bar/ (case matters)
 
   $ echo 'foo/bar/** = fred' >> $config
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny enabled, 1 entries for user fred
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: user fred not allowed on quux/file.py
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset 911600dab2ae
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset 911600dab2ae
   no rollback information available
   0:6675d58eff77
   
 
 fred is allowed inside foo/, but not foo/Bar/
 
   $ echo 'foo/Bar/** = fred' >> $config
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny enabled, 2 entries for user fred
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: user fred denied on foo/Bar/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset f9cafe1212c8
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset f9cafe1212c8
   no rollback information available
   0:6675d58eff77
   
 
   $ echo 'barney is not mentioned => not allowed anywhere'
   barney is not mentioned => not allowed anywhere
   $ do_push barney
   Pushing as user barney
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 0 entries for user barney
   acl: acl.deny enabled, 0 entries for user barney
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: user barney not allowed on foo/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset ef1ea85a6374
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset ef1ea85a6374
   no rollback information available
   0:6675d58eff77
   
 
 barney is allowed everywhere
 
   $ echo '[acl.allow]' >> $config
   $ echo '** = barney' >> $config
   $ do_push barney
   Pushing as user barney
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   [acl.allow]
   ** = barney
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user barney
   acl: acl.deny enabled, 0 entries for user barney
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
 wilma can change files with a .txt extension
 
   $ echo '**/*.txt = wilma' >> $config
   $ do_push wilma
   Pushing as user wilma
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   [acl.allow]
   ** = barney
   **/*.txt = wilma
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user wilma
   acl: acl.deny enabled, 0 entries for user wilma
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: user wilma not allowed on quux/file.py
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset 911600dab2ae
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset 911600dab2ae
   no rollback information available
   0:6675d58eff77
   
 
 file specified by acl.config does not exist
 
   $ echo '[acl]' >> $config
   $ echo 'config = ../acl.config' >> $config
   $ do_push barney
   Pushing as user barney
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   [acl.allow]
   ** = barney
   **/*.txt = wilma
   [acl]
   config = ../acl.config
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   error: pretxnchangegroup.acl hook raised an exception: [Errno 2] No such file or directory: '../acl.config'
   transaction abort!
   rollback completed
   abort: No such file or directory: ../acl.config
   no rollback information available
   0:6675d58eff77
   
 
 betty is allowed inside foo/ by a acl.config file
 
   $ echo '[acl.allow]' >> acl.config
   $ echo 'foo/** = betty' >> acl.config
   $ do_push betty
   Pushing as user betty
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   [acl.allow]
   ** = barney
   **/*.txt = wilma
   [acl]
   config = ../acl.config
   """
   acl.config = """
   [acl.allow]
   foo/** = betty
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user betty
   acl: acl.deny enabled, 0 entries for user betty
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: user betty not allowed on quux/file.py
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset 911600dab2ae
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset 911600dab2ae
   no rollback information available
   0:6675d58eff77
   
 
 acl.config can set only [acl.allow]/[acl.deny]
 
   $ echo '[hooks]' >> acl.config
   $ echo 'changegroup.acl = false' >> acl.config
   $ do_push barney
   Pushing as user barney
   hgrc = """
   [hooks]
   pretxnchangegroup.acl = python:hgext.acl.hook
   [acl]
   sources = push
   [acl.allow]
   foo/** = fred
   [acl.deny]
   foo/bar/** = fred
   foo/Bar/** = fred
   [acl.allow]
   ** = barney
   **/*.txt = wilma
   [acl]
   config = ../acl.config
   """
   acl.config = """
   [acl.allow]
   foo/** = betty
   [hooks]
   changegroup.acl = false
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user barney
   acl: acl.deny enabled, 0 entries for user barney
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
 asterisk
 
   $ init_config
 
 asterisk test
 
   $ echo '[acl.allow]' >> $config
   $ echo "** = fred" >> $config
 
 fred is always allowed
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow]
   ** = fred
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
   $ echo '[acl.deny]' >> $config
   $ echo "foo/Bar/** = *" >> $config
 
 no one is allowed inside foo/Bar/
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow]
   ** = fred
   [acl.deny]
   foo/Bar/** = *
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny enabled, 1 entries for user fred
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: user fred denied on foo/Bar/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset f9cafe1212c8
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset f9cafe1212c8
   no rollback information available
   0:6675d58eff77
   
 
 Groups
 
   $ init_config
 
 OS-level groups
 
   $ echo '[acl.allow]' >> $config
   $ echo "** = @group1" >> $config
 
 @group1 is always allowed
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow]
   ** = @group1
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: "group1" not defined in [acl.groups]
   acl: acl.allow enabled, 1 entries for user fred
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 0 (undo push)
   working directory now based on revision 0
   0:6675d58eff77
   
 
   $ echo '[acl.deny]' >> $config
   $ echo "foo/Bar/** = @group1" >> $config
 
 @group is allowed inside anything but foo/Bar/
 
   $ do_push fred
   Pushing as user fred
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow]
   ** = @group1
   [acl.deny]
   foo/Bar/** = @group1
   """
   pushing to ../b
   searching for changes
-  common changesets up to 6675d58eff77
   invalidating branch cache (tip differs)
   3 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 1/3 manifests (33.33%)
   bundling: 2/3 manifests (66.67%)
   bundling: 3/3 manifests (100.00%)
   bundling: foo/Bar/file.txt 0/3 files (0.00%)
   bundling: foo/file.txt 1/3 files (33.33%)
   bundling: quux/file.py 2/3 files (66.67%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   adding manifests
   manifests: 1/3 chunks (33.33%)
   manifests: 2/3 chunks (66.67%)
   manifests: 3/3 chunks (100.00%)
   adding file changes
   adding foo/Bar/file.txt revisions
   files: 1/3 chunks (33.33%)
   adding foo/file.txt revisions
   files: 2/3 chunks (66.67%)
   adding quux/file.py revisions
   files: 3/3 chunks (100.00%)
   added 3 changesets with 3 changes to 3 files
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: "group1" not defined in [acl.groups]
   acl: acl.allow enabled, 1 entries for user fred
   acl: "group1" not defined in [acl.groups]
   acl: acl.deny enabled, 1 entries for user fred
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: user fred denied on foo/Bar/file.txt
   error: pretxnchangegroup.acl hook failed: acl: access denied for changeset f9cafe1212c8
   transaction abort!
   rollback completed
   abort: acl: access denied for changeset f9cafe1212c8
   no rollback information available
   0:6675d58eff77
   
 
 Invalid group
 
 Disable the fakegroups trick to get real failures
 
   $ grep -v fakegroups $config > config.tmp
   $ mv config.tmp $config
   $ echo '[acl.allow]' >> $config
   $ echo "** = @unlikelytoexist" >> $config
   $ do_push fred 2>&1 | grep unlikelytoexist
   ** = @unlikelytoexist
   acl: "unlikelytoexist" not defined in [acl.groups]
   error: pretxnchangegroup.acl hook failed: group 'unlikelytoexist' is undefined
   abort: group 'unlikelytoexist' is undefined
 
 
 Branch acl tests setup
 
   $ init_config
   $ cd b
   $ hg up
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch foobar
   marked working directory as branch foobar
   $ hg commit -m 'create foobar'
   $ echo 'foo contents' > abc.txt
   $ hg add abc.txt
   $ hg commit -m 'foobar contents'
   $ cd ..
   $ hg --cwd a pull ../b
   pulling from ../b
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 1 changes to 1 files (+1 heads)
   (run 'hg heads' to see heads)
 
 Create additional changeset on foobar branch
 
   $ cd a
   $ hg up -C foobar
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 'foo contents2' > abc.txt
   $ hg commit -m 'foobar contents2'
   $ cd ..
 
 
 No branch acls specified
 
   $ do_push astro
   Pushing as user astro
   hgrc = """
   [acl]
   sources = push
   [extensions]
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   acl: branch access granted: "4ea792ff6428" on branch "foobar"
   acl: allowing changeset 4ea792ff6428
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 2 (undo push)
   working directory now based on revision 2
   2:07e028174695
   
 
 Branch acl deny test
 
   $ echo "[acl.deny.branches]" >> $config
   $ echo "foobar = *" >> $config
   $ do_push astro
   Pushing as user astro
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.deny.branches]
   foobar = *
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   invalidating branch cache (tip differs)
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches enabled, 1 entries for user astro
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   error: pretxnchangegroup.acl hook failed: acl: user "astro" denied on branch "foobar" (changeset "4ea792ff6428")
   transaction abort!
   rollback completed
   abort: acl: user "astro" denied on branch "foobar" (changeset "4ea792ff6428")
   no rollback information available
   2:07e028174695
   
 
 Branch acl empty allow test
 
   $ init_config
   $ echo "[acl.allow.branches]" >> $config
   $ do_push astro
   Pushing as user astro
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow.branches]
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches enabled, 0 entries for user astro
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   error: pretxnchangegroup.acl hook failed: acl: user "astro" not allowed on branch "default" (changeset "ef1ea85a6374")
   transaction abort!
   rollback completed
   abort: acl: user "astro" not allowed on branch "default" (changeset "ef1ea85a6374")
   no rollback information available
   2:07e028174695
   
 
 Branch acl allow other
 
   $ init_config
   $ echo "[acl.allow.branches]" >> $config
   $ echo "* = george" >> $config
   $ do_push astro
   Pushing as user astro
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow.branches]
   * = george
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches enabled, 0 entries for user astro
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   error: pretxnchangegroup.acl hook failed: acl: user "astro" not allowed on branch "default" (changeset "ef1ea85a6374")
   transaction abort!
   rollback completed
   abort: acl: user "astro" not allowed on branch "default" (changeset "ef1ea85a6374")
   no rollback information available
   2:07e028174695
   
   $ do_push george
   Pushing as user george
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow.branches]
   * = george
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches enabled, 1 entries for user george
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   acl: branch access granted: "4ea792ff6428" on branch "foobar"
   acl: allowing changeset 4ea792ff6428
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 2 (undo push)
   working directory now based on revision 2
   2:07e028174695
   
 
 Branch acl conflicting allow
 asterisk ends up applying to all branches and allowing george to
 push foobar into the remote
 
   $ init_config
   $ echo "[acl.allow.branches]" >> $config
   $ echo "foobar = astro" >> $config
   $ echo "* = george" >> $config
   $ do_push george
   Pushing as user george
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.allow.branches]
   foobar = astro
   * = george
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   invalidating branch cache (tip differs)
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches enabled, 1 entries for user george
   acl: acl.deny.branches not enabled
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   acl: branch access granted: "ef1ea85a6374" on branch "default"
   acl: allowing changeset ef1ea85a6374
   acl: branch access granted: "f9cafe1212c8" on branch "default"
   acl: allowing changeset f9cafe1212c8
   acl: branch access granted: "911600dab2ae" on branch "default"
   acl: allowing changeset 911600dab2ae
   acl: branch access granted: "4ea792ff6428" on branch "foobar"
   acl: allowing changeset 4ea792ff6428
   updating the branch cache
   checking for updated bookmarks
   repository tip rolled back to revision 2 (undo push)
   working directory now based on revision 2
   2:07e028174695
   
 Branch acl conflicting deny
 
   $ init_config
   $ echo "[acl.deny.branches]" >> $config
   $ echo "foobar = astro" >> $config
   $ echo "default = astro" >> $config
   $ echo "* = george" >> $config
   $ do_push george
   Pushing as user george
   hgrc = """
   [acl]
   sources = push
   [extensions]
   [acl.deny.branches]
   foobar = astro
   default = astro
   * = george
   """
   pushing to ../b
   searching for changes
-  common changesets up to 07e028174695
   invalidating branch cache (tip differs)
   4 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   4ea792ff64284af438188103a0ee8aca1724fb8c
   adding changesets
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 3 changesets
   bundling: 4 changesets
   bundling: 1/4 manifests (25.00%)
   bundling: 2/4 manifests (50.00%)
   bundling: 3/4 manifests (75.00%)
   bundling: 4/4 manifests (100.00%)
   bundling: abc.txt 0/4 files (0.00%)
   bundling: foo/Bar/file.txt 1/4 files (25.00%)
   bundling: foo/file.txt 2/4 files (50.00%)
   bundling: quux/file.py 3/4 files (75.00%)
   changesets: 1 chunks
   add changeset ef1ea85a6374
   changesets: 2 chunks
   add changeset f9cafe1212c8
   changesets: 3 chunks
   add changeset 911600dab2ae
   changesets: 4 chunks
   add changeset 4ea792ff6428
   adding manifests
   manifests: 1/4 chunks (25.00%)
   manifests: 2/4 chunks (50.00%)
   manifests: 3/4 chunks (75.00%)
   manifests: 4/4 chunks (100.00%)
   adding file changes
   adding abc.txt revisions
   files: 1/4 chunks (25.00%)
   adding foo/Bar/file.txt revisions
   files: 2/4 chunks (50.00%)
   adding foo/file.txt revisions
   files: 3/4 chunks (75.00%)
   adding quux/file.py revisions
   files: 4/4 chunks (100.00%)
   added 4 changesets with 4 changes to 4 files (+1 heads)
   calling hook pretxnchangegroup.acl: hgext.acl.hook
   acl: acl.allow.branches not enabled
   acl: acl.deny.branches enabled, 1 entries for user george
   acl: acl.allow not enabled
   acl: acl.deny not enabled
   error: pretxnchangegroup.acl hook failed: acl: user "george" denied on branch "default" (changeset "ef1ea85a6374")
   transaction abort!
   rollback completed
   abort: acl: user "george" denied on branch "default" (changeset "ef1ea85a6374")
   no rollback information available
   2:07e028174695
   

tests/test-bundle-r.t

@@ -1,376 +1,377
   $ hg init test
   $ cd test
   $ echo "0" >> afile
   $ hg add afile
   $ hg commit -m "0.0"
   $ echo "1" >> afile
   $ hg commit -m "0.1"
   $ echo "2" >> afile
   $ hg commit -m "0.2"
   $ echo "3" >> afile
   $ hg commit -m "0.3"
   $ hg update -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo "1" >> afile
   $ hg commit -m "1.1"
   created new head
   $ echo "2" >> afile
   $ hg commit -m "1.2"
   $ echo "a line" > fred
   $ echo "3" >> afile
   $ hg add fred
   $ hg commit -m "1.3"
   $ hg mv afile adifferentfile
   $ hg commit -m "1.3m"
   $ hg update -C 3
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg mv afile anotherfile
   $ hg commit -m "0.3m"
   $ hg debugindex .hg/store/data/afile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0       3      0       0 362fef284ce2 000000000000 000000000000
        1         3       5      1       1 125144f7e028 362fef284ce2 000000000000
        2         8       7      2       2 4c982badb186 125144f7e028 000000000000
        3        15       9      3       3 19b1fc555737 4c982badb186 000000000000
   $ hg debugindex .hg/store/data/adifferentfile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      75      0       7 2565f3199a74 000000000000 000000000000
   $ hg debugindex .hg/store/data/anotherfile.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      75      0       8 2565f3199a74 000000000000 000000000000
   $ hg debugindex .hg/store/data/fred.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0       8      0       6 12ab3bcc5ea4 000000000000 000000000000
   $ hg debugindex .hg/store/00manifest.i
      rev    offset  length   base linkrev nodeid       p1           p2
        0         0      48      0       0 43eadb1d2d06 000000000000 000000000000
        1        48      48      1       1 8b89697eba2c 43eadb1d2d06 000000000000
        2        96      48      2       2 626a32663c2f 8b89697eba2c 000000000000
        3       144      48      3       3 f54c32f13478 626a32663c2f 000000000000
        4       192      58      3       6 de68e904d169 626a32663c2f 000000000000
        5       250      68      3       7 09bb521d218d de68e904d169 000000000000
        6       318      54      6       8 1fde233dfb0f f54c32f13478 000000000000
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ cd ..
   $ for i in 0 1 2 3 4 5 6 7 8; do
   >    mkdir test-"$i"
   >    hg --cwd test-"$i" init
   >    hg -R test bundle -r "$i" test-"$i".hg test-"$i"
   >    cd test-"$i"
   >    hg unbundle ../test-"$i".hg
   >    hg verify
   >    hg tip -q
   >    cd ..
   > done
   searching for changes
   1 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 1 changesets, 1 total revisions
   0:f9ee2f85a263
   searching for changes
   2 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 2 changesets, 2 total revisions
   1:34c2bf6b0626
   searching for changes
   3 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 3 changesets, 3 total revisions
   2:e38ba6f5b7e0
   searching for changes
   4 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 4 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 4 changesets, 4 total revisions
   3:eebf5a27f8ca
   searching for changes
   2 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 2 changesets, 2 total revisions
   1:095197eb4973
   searching for changes
   3 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 3 changes to 1 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   1 files, 3 changesets, 3 total revisions
   2:1bb50a9436a7
   searching for changes
   4 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 5 changes to 2 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 4 changesets, 5 total revisions
   3:7373c1169842
   searching for changes
   5 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 6 changes to 3 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   3 files, 5 changesets, 6 total revisions
   4:a6a34bfa0076
   searching for changes
   5 changesets found
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 5 changes to 2 files
   (run 'hg update' to get a working copy)
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
   4:aa35859c02ea
   $ cd test-8
   $ hg pull ../test-7
   pulling from ../test-7
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 2 changes to 3 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ hg rollback
   repository tip rolled back to revision 4 (undo pull)
   working directory now based on revision -1
   $ cd ..
 
 should fail
 
   $ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg test-3
   abort: --base is incompatible with specifying a destination
   [255]
   $ hg -R test bundle -r tip test-bundle-branch1.hg
   abort: repository default-push not found!
   [255]
 
   $ hg -R test bundle --base 2 -r tip test-bundle-branch1.hg
   2 changesets found
   $ hg -R test bundle --base 2 -r 7 test-bundle-branch2.hg
   4 changesets found
   $ hg -R test bundle --base 2 test-bundle-all.hg
   6 changesets found
   $ hg -R test bundle --base 3 -r tip test-bundle-should-fail.hg
   1 changesets found
 
 empty bundle
 
   $ hg -R test bundle --base 7 --base 8 test-bundle-empty.hg
   no changes found
   [1]
 
 issue76 msg2163
 
   $ hg -R test bundle --base 3 -r 3 -r 3 test-bundle-cset-3.hg
-  1 changesets found
+  no changes found
+  [1]
 
 Issue1910: 'hg bundle --base $head' does not exclude $head from
 result
 
   $ hg -R test bundle --base 7 test-bundle-cset-7.hg
   4 changesets found
 
   $ hg clone test-2 test-9
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd test-9
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-should-fail.hg
   adding changesets
   transaction abort!
   rollback completed
   abort: 00changelog.i@eebf5a27f8ca: unknown parent!
   [255]
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-all.hg
   adding changesets
   adding manifests
   adding file changes
   added 6 changesets with 4 changes to 4 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 revision 8
 
   $ hg tip -q
   8:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ hg rollback
   repository tip rolled back to revision 2 (undo unbundle)
   working directory now based on revision 2
 
 revision 2
 
   $ hg tip -q
   2:e38ba6f5b7e0
   $ hg unbundle ../test-bundle-branch1.hg
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   (run 'hg update' to get a working copy)
 
 revision 4
 
   $ hg tip -q
   4:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
   $ hg rollback
   repository tip rolled back to revision 2 (undo unbundle)
   working directory now based on revision 2
   $ hg unbundle ../test-bundle-branch2.hg
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 3 changes to 3 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 revision 6
 
   $ hg tip -q
   6:a6a34bfa0076
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   3 files, 7 changesets, 6 total revisions
   $ hg rollback
   repository tip rolled back to revision 2 (undo unbundle)
   working directory now based on revision 2
   $ hg unbundle ../test-bundle-cset-7.hg
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   (run 'hg update' to get a working copy)
 
 revision 4
 
   $ hg tip -q
   4:aa35859c02ea
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 5 changesets, 5 total revisions
 
   $ cd ../test
   $ hg merge 7
   note: possible conflict - afile was renamed multiple times to:
    anotherfile
    adifferentfile
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m merge
   $ cd ..
   $ hg -R test bundle --base 2 test-bundle-head.hg
   7 changesets found
   $ hg clone test-2 test-10
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd test-10
   $ hg unbundle ../test-bundle-head.hg
   adding changesets
   adding manifests
   adding file changes
   added 7 changesets with 4 changes to 4 files
   (run 'hg update' to get a working copy)
 
 revision 9
 
   $ hg tip -q
   9:905597b0d5d4
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 10 changesets, 7 total revisions

tests/test-bundle.t

@@ -1,576 +1,575
 Setting up test
 
   $ hg init test
   $ cd test
   $ echo 0 > afile
   $ hg add afile
   $ hg commit -m "0.0"
   $ echo 1 >> afile
   $ hg commit -m "0.1"
   $ echo 2 >> afile
   $ hg commit -m "0.2"
   $ echo 3 >> afile
   $ hg commit -m "0.3"
   $ hg update -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 1 >> afile
   $ hg commit -m "1.1"
   created new head
   $ echo 2 >> afile
   $ hg commit -m "1.2"
   $ echo "a line" > fred
   $ echo 3 >> afile
   $ hg add fred
   $ hg commit -m "1.3"
   $ hg mv afile adifferentfile
   $ hg commit -m "1.3m"
   $ hg update -C 3
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg mv afile anotherfile
   $ hg commit -m "0.3m"
   $ hg verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   4 files, 9 changesets, 7 total revisions
   $ cd ..
   $ hg init empty
 
 Bundle --all
 
   $ hg -R test bundle --all all.hg
   9 changesets found
 
 Bundle test to full.hg
 
   $ hg -R test bundle full.hg empty
   searching for changes
   9 changesets found
 
 Unbundle full.hg in test
 
   $ hg -R test unbundle full.hg
   adding changesets
   adding manifests
   adding file changes
   added 0 changesets with 0 changes to 4 files
   (run 'hg update' to get a working copy)
 
 Verify empty
 
   $ hg -R empty heads
   [1]
   $ hg -R empty verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   0 files, 0 changesets, 0 total revisions
 
 Pull full.hg into test (using --cwd)
 
   $ hg --cwd test pull ../full.hg
   pulling from ../full.hg
   searching for changes
   no changes found
 
 Pull full.hg into empty (using --cwd)
 
   $ hg --cwd empty pull ../full.hg
   pulling from ../full.hg
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Rollback empty
 
   $ hg -R empty rollback
   repository tip rolled back to revision -1 (undo pull)
   working directory now based on revision -1
 
 Pull full.hg into empty again (using --cwd)
 
   $ hg --cwd empty pull ../full.hg
   pulling from ../full.hg
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Pull full.hg into test (using -R)
 
   $ hg -R test pull full.hg
   pulling from full.hg
   searching for changes
   no changes found
 
 Pull full.hg into empty (using -R)
 
   $ hg -R empty pull full.hg
   pulling from full.hg
   searching for changes
   no changes found
 
 Rollback empty
 
   $ hg -R empty rollback
   repository tip rolled back to revision -1 (undo pull)
   working directory now based on revision -1
 
 Pull full.hg into empty again (using -R)
 
   $ hg -R empty pull full.hg
   pulling from full.hg
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Log -R full.hg in fresh empty
 
   $ rm -r empty
   $ hg init empty
   $ cd empty
   $ hg -R bundle://../full.hg log
   changeset:   8:aa35859c02ea
   tag:         tip
   parent:      3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3m
   
   changeset:   7:a6a34bfa0076
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3m
   
   changeset:   6:7373c1169842
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3
   
   changeset:   5:1bb50a9436a7
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.2
   
   changeset:   4:095197eb4973
   parent:      0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.1
   
   changeset:   3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3
   
   changeset:   2:e38ba6f5b7e0
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.2
   
   changeset:   1:34c2bf6b0626
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.1
   
   changeset:   0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.0
   
 Make sure bundlerepo doesn't leak tempfiles (issue2491)
 
   $ ls .hg
   00changelog.i
   cache
   requires
   store
 
 Pull ../full.hg into empty (with hook)
 
   $ echo '[hooks]' >> .hg/hgrc
   $ echo 'changegroup = python "$TESTDIR"/printenv.py changegroup' >> .hg/hgrc
 
 doesn't work (yet ?)
 
 hg -R bundle://../full.hg verify
 
   $ hg pull bundle://../full.hg
   pulling from bundle:../full.hg
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   changegroup hook: HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_SOURCE=pull HG_URL=bundle:../full.hg 
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Rollback empty
 
   $ hg rollback
   repository tip rolled back to revision -1 (undo pull)
   working directory now based on revision -1
   $ cd ..
 
 Log -R bundle:empty+full.hg
 
   $ hg -R bundle:empty+full.hg log --template="{rev} "; echo ""
   8 7 6 5 4 3 2 1 0 
 
 Pull full.hg into empty again (using -R; with hook)
 
   $ hg -R empty pull full.hg
   pulling from full.hg
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   changegroup hook: HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_SOURCE=pull HG_URL=bundle:empty+full.hg 
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Create partial clones
 
   $ rm -r empty
   $ hg init empty
   $ hg clone -r 3 test partial
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 4 changes to 1 files
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg clone partial partial2
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd partial
 
 Log -R full.hg in partial
 
   $ hg -R bundle://../full.hg log
   changeset:   8:aa35859c02ea
   tag:         tip
   parent:      3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3m
   
   changeset:   7:a6a34bfa0076
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3m
   
   changeset:   6:7373c1169842
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3
   
   changeset:   5:1bb50a9436a7
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.2
   
   changeset:   4:095197eb4973
   parent:      0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.1
   
   changeset:   3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3
   
   changeset:   2:e38ba6f5b7e0
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.2
   
   changeset:   1:34c2bf6b0626
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.1
   
   changeset:   0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.0
   
 
 Incoming full.hg in partial
 
   $ hg incoming bundle://../full.hg
   comparing with bundle:../full.hg
   searching for changes
   changeset:   4:095197eb4973
   parent:      0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.1
   
   changeset:   5:1bb50a9436a7
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.2
   
   changeset:   6:7373c1169842
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3
   
   changeset:   7:a6a34bfa0076
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3m
   
   changeset:   8:aa35859c02ea
   tag:         tip
   parent:      3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3m
   
 
 Outgoing -R full.hg vs partial2 in partial
 
   $ hg -R bundle://../full.hg outgoing ../partial2
   comparing with ../partial2
   searching for changes
   changeset:   4:095197eb4973
   parent:      0:f9ee2f85a263
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.1
   
   changeset:   5:1bb50a9436a7
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.2
   
   changeset:   6:7373c1169842
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3
   
   changeset:   7:a6a34bfa0076
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3m
   
   changeset:   8:aa35859c02ea
   tag:         tip
   parent:      3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3m
   
 
 Outgoing -R does-not-exist.hg vs partial2 in partial
 
   $ hg -R bundle://../does-not-exist.hg outgoing ../partial2
   abort: No such file or directory: ../does-not-exist.hg
   [255]
   $ cd ..
 
 Direct clone from bundle (all-history)
 
   $ hg clone full.hg full-clone
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R full-clone heads
   changeset:   8:aa35859c02ea
   tag:         tip
   parent:      3:eebf5a27f8ca
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     0.3m
   
   changeset:   7:a6a34bfa0076
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     1.3m
   
   $ rm -r full-clone
 
 When cloning from a non-copiable repository into '', do not
 recurse infinitely (issue 2528)
 
   $ hg clone full.hg ''
   abort: No such file or directory
   [255]
 
 test for http://mercurial.selenic.com/bts/issue216
 
 Unbundle incremental bundles into fresh empty in one go
 
   $ rm -r empty
   $ hg init empty
   $ hg -R test bundle --base null -r 0 ../0.hg
   1 changesets found
   $ hg -R test bundle --base 0    -r 1 ../1.hg
   1 changesets found
   $ hg -R empty unbundle -u ../0.hg ../1.hg
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   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
 
 test for 540d1059c802
 
 test for 540d1059c802
 
   $ hg init orig
   $ cd orig
   $ echo foo > foo
   $ hg add foo
   $ hg ci -m 'add foo'
 
   $ hg clone . ../copy
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg tag foo
 
   $ cd ../copy
   $ echo >> foo
   $ hg ci -m 'change foo'
   $ hg bundle ../bundle.hg ../orig
   searching for changes
   1 changesets found
 
   $ cd ../orig
   $ hg incoming ../bundle.hg
   comparing with ../bundle.hg
   searching for changes
   changeset:   2:ed1b79f46b9a
   tag:         tip
   parent:      0:bbd179dfa0a7
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     change foo
   
   $ cd ..
 
 test bundle with # in the filename (issue2154):
 
   $ cp bundle.hg 'test#bundle.hg'
   $ cd orig
   $ hg incoming '../test#bundle.hg'
   comparing with ../test
   abort: unknown revision 'bundle.hg'!
   [255]
 
 note that percent encoding is not handled:
 
   $ hg incoming ../test%23bundle.hg
   abort: repository ../test%23bundle.hg not found!
   [255]
   $ cd ..
 
 test for http://mercurial.selenic.com/bts/issue1144
 
 test that verify bundle does not traceback
 
 partial history bundle, fails w/ unkown parent
 
   $ hg -R bundle.hg verify
   abort: 00changelog.i@bbd179dfa0a7: unknown parent!
   [255]
 
 full history bundle, refuses to verify non-local repo
 
   $ hg -R all.hg verify
   abort: cannot verify bundle or remote repos
   [255]
 
 but, regular verify must continue to work
 
   $ hg -R orig verify
   checking changesets
   checking manifests
   crosschecking files in changesets and manifests
   checking files
   2 files, 2 changesets, 2 total revisions
 
 diff against bundle
 
   $ hg init b
   $ cd b
   $ hg -R ../all.hg diff -r tip
   diff -r aa35859c02ea anotherfile
   --- a/anotherfile	Thu Jan 01 00:00:00 1970 +0000
   +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,4 +0,0 @@
   -0
   -1
   -2
   -3
   $ cd ..
 
 bundle single branch
 
   $ hg init branchy
   $ cd branchy
   $ echo a >a
   $ hg ci -Ama
   adding a
   $ echo b >b
   $ hg ci -Amb
   adding b
   $ echo b1 >b1
   $ hg ci -Amb1
   adding b1
   $ hg up 0
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo c >c
   $ hg ci -Amc
   adding c
   created new head
   $ echo c1 >c1
   $ hg ci -Amc1
   adding c1
   $ hg clone -q .#tip part
 
 == bundling via incoming
 
   $ hg in -R part --bundle incoming.hg --template "{node}\n" .
   comparing with .
   searching for changes
   d2ae7f538514cd87c17547b0de4cea71fe1af9fb
   5ece8e77363e2b5269e27c66828b72da29e4341a
 
 == bundling
 
   $ hg bundle bundle.hg part --debug
   searching for changes
-  common changesets up to c0025332f9ed
   2 changesets found
   list of changesets:
   d2ae7f538514cd87c17547b0de4cea71fe1af9fb
   5ece8e77363e2b5269e27c66828b72da29e4341a
   bundling: 1 changesets
   bundling: 2 changesets
   bundling: 1/2 manifests (50.00%)
   bundling: 2/2 manifests (100.00%)
   bundling: b 0/2 files (0.00%)
   bundling: b1 1/2 files (50.00%)
 

tests/test-push-warn.t

@@ -1,717 +1,716
   $ echo "[extensions]" >> $HGRCPATH
   $ echo "graphlog=" >> $HGRCPATH
 
   $ hg init a
   $ cd a
   $ echo foo > t1
   $ hg add t1
   $ hg commit -m "1"
 
   $ cd ..
   $ hg clone a b
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd a
   $ echo foo > t2
   $ hg add t2
   $ hg commit -m "2"
 
   $ cd ../b
   $ echo foo > t3
   $ hg add t3
   $ hg commit -m "3"
 
   $ hg push ../a
   pushing to ../a
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (you should pull and merge or use push -f to force)
   [255]
 
   $ hg push --debug ../a
   pushing to ../a
   searching for changes
   examining 1c9246a22a0a:d8d565842d04
   found incomplete branch 1c9246a22a0a:d8d565842d04
   searching: 1 queries
   narrowing 1:1 d8d565842d04
   found new branch changeset 1c9246a22a0a
   found new changesets starting at 1c9246a22a0a
   1 total queries
-  common changesets up to d8d565842d04
   new remote heads on branch 'default'
   new remote head 1e108cc5548c
   abort: push creates new remote heads on branch 'default'!
   (you should pull and merge or use push -f to force)
   [255]
 
   $ hg pull ../a
   pulling from ../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)
 
   $ hg push ../a
   pushing to ../a
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg merge
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg commit -m "4"
   $ hg push ../a
   pushing to ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 1 changes to 1 files
 
   $ cd ..
 
   $ hg init c
   $ cd c
   $ for i in 0 1 2; do
   >     echo $i >> foo
   >     hg ci -Am $i
   > done
   adding foo
   $ cd ..
 
   $ hg clone c d
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd d
   $ for i in 0 1; do
   >    hg co -C $i
   >    echo d-$i >> foo
   >    hg ci -m d-$i
   > done
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   created new head
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   created new head
 
   $ HGMERGE=true hg merge 3
   merging foo
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg ci -m c-d
 
   $ hg push ../c
   pushing to ../c
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push -r 2 ../c
   pushing to ../c
   searching for changes
   no changes found
 
   $ hg push -r 3 ../c
   pushing to ../c
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push -r 3 -r 4 ../c
   pushing to ../c
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push -f -r 3 -r 4 ../c
   pushing to ../c
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files (+2 heads)
 
   $ hg push -r 5 ../c
   pushing to ../c
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (-1 heads)
 
   $ hg in ../c
   comparing with ../c
   searching for changes
   no changes found
   [1]
 
 
 Issue450: push -r warns about remote head creation even if no heads
 will be created
 
   $ hg init ../e
   $ hg push -r 0 ../e
   pushing to ../e
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ hg push -r 1 ../e
   pushing to ../e
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ cd ..
 
 
 Issue736: named branches are not considered for detection of
 unmerged heads in "hg push"
 
   $ hg init f
   $ cd f
   $ hg -q branch a
   $ echo 0 > foo
   $ hg -q ci -Am 0
   $ echo 1 > foo
   $ hg -q ci -m 1
   $ hg -q up 0
   $ echo 2 > foo
   $ hg -q ci -m 2
   $ hg -q up 0
   $ hg -q branch b
   $ echo 3 > foo
   $ hg -q ci -m 3
   $ cd ..
 
   $ hg -q clone f g
   $ cd g
 
 Push on existing branch and new branch:
 
   $ hg -q up 1
   $ echo 4 > foo
   $ hg -q ci -m 4
   $ hg -q up 0
   $ echo 5 > foo
   $ hg -q branch c
   $ hg -q ci -m 5
 
   $ hg push ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ hg push -r 4 -r 5 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Multiple new branches:
 
   $ hg -q branch d
   $ echo 6 > foo
   $ hg -q ci -m 6
 
   $ hg push ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c, d!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ hg push -r 4 -r 6 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: c, d!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
   $ cd ../g
 
 
 Fail on multiple head push:
 
   $ hg -q up 1
   $ echo 7 > foo
   $ hg -q ci -m 7
 
   $ hg push -r 4 -r 7 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote heads on branch 'a'!
   (did you forget to merge? use push -f to force)
   [255]
 
 Push replacement head on existing branches:
 
   $ hg -q up 3
   $ echo 8 > foo
   $ hg -q ci -m 8
 
   $ hg push -r 7 -r 8 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
 
 
 Merge of branch a to other branch b followed by unrelated push
 on branch a:
 
   $ hg -q up 7
   $ HGMERGE=true hg -q merge 8
   $ hg -q ci -m 9
   $ hg -q up 8
   $ echo 10 > foo
   $ hg -q ci -m 10
 
   $ hg push -r 9 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (-1 heads)
 
   $ hg push -r 10 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
 
 
 Cheating the counting algorithm:
 
   $ hg -q up 9
   $ HGMERGE=true hg -q merge 2
   $ hg -q ci -m 11
   $ hg -q up 1
   $ echo 12 > foo
   $ hg -q ci -m 12
 
   $ hg push -r 11 -r 12 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 1 files
 
 
 Failed push of new named branch:
 
   $ echo 12 > foo
   $ hg -q ci -m 12a
   [1]
   $ hg -q up 11
   $ echo 13 > foo
   $ hg -q branch e
   $ hg -q ci -m 13d
 
   $ hg push -r 12 -r 13 ../f
   pushing to ../f
   searching for changes
   abort: push creates new remote branches: e!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Using --new-branch to push new named branch:
 
   $ hg push --new-branch -r 12 -r 13 ../f
   pushing to ../f
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
 
 Checking prepush logic does not allow silently pushing
 multiple new heads:
 
   $ cd ..
   $ hg init h
   $ echo init > h/init
   $ hg -R h ci -Am init
   adding init
   $ echo a > h/a
   $ hg -R h ci -Am a
   adding a
   $ hg clone h i
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg -R h up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b > h/b
   $ hg -R h ci -Am b
   adding b
   created new head
   $ hg -R i up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo c > i/c
   $ hg -R i ci -Am c
   adding c
   created new head
 
   $ hg -R i push h
   pushing to h
   searching for changes
   abort: push creates new remote heads on branch 'default'!
   (you should pull and merge or use push -f to force)
   [255]
 
 
 Check prepush logic with merged branches:
 
   $ hg init j
   $ hg -R j branch a
   marked working directory as branch a
   $ echo init > j/foo
   $ hg -R j ci -Am init
   adding foo
   $ hg clone j k
   updating to branch a
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a1 > j/foo
   $ hg -R j ci -m a1
   $ hg -R k branch b
   marked working directory as branch b
   $ echo b > k/foo
   $ hg -R k ci -m b
   $ hg -R k up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg -R k merge b
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg -R k ci -m merge
 
   $ hg -R k push -r a j
   pushing to j
   searching for changes
   abort: push creates new remote branches: b!
   (use 'hg push --new-branch' to create new remote branches)
   [255]
 
 
 Prepush -r should not allow you to sneak in new heads:
 
   $ hg init l
   $ cd l
   $ echo a >> foo
   $ hg -q add foo
   $ hg -q branch a
   $ hg -q ci -ma
   $ hg -q up null
   $ echo a >> foo
   $ hg -q add foo
   $ hg -q branch b
   $ hg -q ci -mb
   $ cd ..
   $ hg -q clone l m -u a
   $ cd m
   $ hg -q merge b
   $ hg -q ci -mmb
   $ hg -q up 0
   $ echo a >> foo
   $ hg -q ci -ma2
   $ hg -q up 2
   $ echo a >> foo
   $ hg -q branch -f b
   $ hg -q ci -mb2
   $ hg -q merge 3
   $ hg -q ci -mma
 
   $ hg push ../l -b b
   pushing to ../l
   searching for changes
   abort: push creates new remote heads on branch 'a'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ cd ..
 
 
 Check prepush with new branch head on former topo non-head:
 
   $ hg init n
   $ cd n
   $ hg branch A
   marked working directory as branch A
   $ echo a >a
   $ hg ci -Ama
   adding a
   $ hg branch B
   marked working directory as branch B
   $ echo b >b
   $ hg ci -Amb
   adding b
 
 b is now branch head of B, and a topological head
 a is now branch head of A, but not a topological head
 
   $ hg clone . inner
   updating to branch B
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd inner
   $ hg up B
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo b1 >b1
   $ hg ci -Amb1
   adding b1
 
 in the clone b1 is now the head of B
 
   $ cd ..
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo a2 >a2
   $ hg ci -Ama2
   adding a2
 
 a2 is now the new branch head of A, and a new topological head
 it replaces a former inner branch head, so it should at most warn about
 A, not B
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  2: A a2
   |
   | o  1: B b
   |/
   o  0: A a
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  2: B b1
   |
   o  1: B b
   |
   o  0: A a
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   2: A a2
 
   $ hg push inner
   pushing to inner
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
 
   $ cd ..
 
 
 Check prepush with new branch head on former topo head:
 
   $ hg init o
   $ cd o
   $ hg branch A
   marked working directory as branch A
   $ echo a >a
   $ hg ci -Ama
   adding a
   $ hg branch B
   marked working directory as branch B
   $ echo b >b
   $ hg ci -Amb
   adding b
 
 b is now branch head of B, and a topological head
 
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo a1 >a1
   $ hg ci -Ama1
   adding a1
 
 a1 is now branch head of A, and a topological head
 
   $ hg clone . inner
   updating to branch A
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd inner
   $ hg up B
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b1 >b1
   $ hg ci -Amb1
   adding b1
 
 in the clone b1 is now the head of B
 
   $ cd ..
   $ echo a2 >a2
   $ hg ci -Ama2
   adding a2
 
 a2 is now the new branch head of A, and a topological head
 it replaces a former topological and branch head, so this should not warn
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  3: A a2
   |
   o  2: A a1
   |
   | o  1: B b
   |/
   o  0: A a
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  3: B b1
   |
   | o  2: A a1
   | |
   o |  1: B b
   |/
   o  0: A a
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   3: A a2
 
   $ hg push inner
   pushing to inner
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
   $ cd ..
 
 
 Check prepush with new branch head and new child of former branch head
 but child is on different branch:
 
   $ hg init p
   $ cd p
   $ hg branch A
   marked working directory as branch A
   $ echo a0 >a
   $ hg ci -Ama0
   adding a
   $ echo a1 >a
   $ hg ci -ma1
   $ hg up null
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch B
   marked working directory as branch B
   $ echo b0 >b
   $ hg ci -Amb0
   adding b
   $ echo b1 >b
   $ hg ci -mb1
 
   $ hg clone . inner
   updating to branch B
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg up A
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch -f B
   marked working directory as branch B
   $ echo a3 >a
   $ hg ci -ma3
   created new head
   $ hg up 3
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch -f A
   marked working directory as branch A
   $ echo b3 >b
   $ hg ci -mb3
   created new head
 
 glog of local:
 
   $ hg glog --template "{rev}: {branches} {desc}\n"
   @  5: A b3
   |
   | o  4: B a3
   | |
   o |  3: B b1
   | |
   o |  2: B b0
    /
   o  1: A a1
   |
   o  0: A a0
   
 glog of remote:
 
   $ hg glog -R inner --template "{rev}: {branches} {desc}\n"
   @  3: B b1
   |
   o  2: B b0
   
   o  1: A a1
   |
   o  0: A a0
   
 outgoing:
 
   $ hg out inner --template "{rev}: {branches} {desc}\n"
   comparing with inner
   searching for changes
   4: B a3
   5: A b3
 
   $ hg push inner
   pushing to inner
   searching for changes
   abort: push creates new remote heads on branch 'A'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg push inner -r4 -r5
   pushing to inner
   searching for changes
   abort: push creates new remote heads on branch 'A'!
   (did you forget to merge? use push -f to force)
   [255]
 
   $ hg in inner
   comparing with inner
   searching for changes
   no changes found
   [1]