localrepo: remove all external users of localrepo.opener

This change touches every module in which repository.opener was being used, and
changes it for the equivalent repository.vfs. This is meant to make it easier
to split the repository.vfs into several separate vfs.

It should now be possible to remove localrepo.opener.

hgext/blackbox.py

@@ -1,158 +1,158 b''
 # blackbox.py - log repository events to a file for post-mortem debugging
 #
 # Copyright 2010 Nicolas Dumazet
 # Copyright 2013 Facebook, Inc.
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 """log repository events to a blackbox for debugging
 
 Logs event information to .hg/blackbox.log to help debug and diagnose problems.
 The events that get logged can be configured via the blackbox.track config key.
 Examples::
 
   [blackbox]
   track = *
 
   [blackbox]
   track = command, commandfinish, commandexception, exthook, pythonhook
 
   [blackbox]
   track = incoming
 
   [blackbox]
   # limit the size of a log file
   maxsize = 1.5 MB
   # rotate up to N log files when the current one gets too big
   maxfiles = 3
 
 """
 
 from mercurial import util, cmdutil
 from mercurial.i18n import _
 import errno, os, re
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 lastblackbox = None
 
 def wrapui(ui):
     class blackboxui(ui.__class__):
         @util.propertycache
         def track(self):
             return self.configlist('blackbox', 'track', ['*'])
 
         def _openlogfile(self):
             def rotate(oldpath, newpath):
                 try:
                     os.unlink(newpath)
                 except OSError, err:
                     if err.errno != errno.ENOENT:
                         self.debug("warning: cannot remove '%s': %s\n" %
                                    (newpath, err.strerror))
                 try:
                     if newpath:
                         os.rename(oldpath, newpath)
                 except OSError, err:
                     if err.errno != errno.ENOENT:
                         self.debug("warning: cannot rename '%s' to '%s': %s\n" %
                                    (newpath, oldpath, err.strerror))
 
             fp = self._bbopener('blackbox.log', 'a')
             maxsize = self.configbytes('blackbox', 'maxsize', 1048576)
             if maxsize > 0:
                 st = os.fstat(fp.fileno())
                 if st.st_size >= maxsize:
                     path = fp.name
                     fp.close()
                     maxfiles = self.configint('blackbox', 'maxfiles', 7)
                     for i in xrange(maxfiles - 1, 1, -1):
                         rotate(oldpath='%s.%d' % (path, i - 1),
                                newpath='%s.%d' % (path, i))
                     rotate(oldpath=path,
                            newpath=maxfiles > 0 and path + '.1')
                     fp = self._bbopener('blackbox.log', 'a')
             return fp
 
         def log(self, event, *msg, **opts):
             global lastblackbox
             super(blackboxui, self).log(event, *msg, **opts)
 
             if not '*' in self.track and not event in self.track:
                 return
 
             if util.safehasattr(self, '_blackbox'):
                 blackbox = self._blackbox
             elif util.safehasattr(self, '_bbopener'):
                 try:
                     self._blackbox = self._openlogfile()
                 except (IOError, OSError), err:
                     self.debug('warning: cannot write to blackbox.log: %s\n' %
                                err.strerror)
                     del self._bbopener
                     self._blackbox = None
                 blackbox = self._blackbox
             else:
                 # certain ui instances exist outside the context of
                 # a repo, so just default to the last blackbox that
                 # was seen.
                 blackbox = lastblackbox
 
             if blackbox:
                 date = util.datestr(None, '%Y/%m/%d %H:%M:%S')
                 user = util.getuser()
                 formattedmsg = msg[0] % msg[1:]
                 try:
                     blackbox.write('%s %s> %s' % (date, user, formattedmsg))
                 except IOError, err:
                     self.debug('warning: cannot write to blackbox.log: %s\n' %
                                err.strerror)
                 lastblackbox = blackbox
 
         def setrepo(self, repo):
-            self._bbopener = repo.opener
+            self._bbopener = repo.vfs
 
     ui.__class__ = blackboxui
 
 def uisetup(ui):
     wrapui(ui)
 
 def reposetup(ui, repo):
     # During 'hg pull' a httppeer repo is created to represent the remote repo.
     # It doesn't have a .hg directory to put a blackbox in, so we don't do
     # the blackbox setup for it.
     if not repo.local():
         return
 
     if util.safehasattr(ui, 'setrepo'):
         ui.setrepo(repo)
 
 @command('^blackbox',
     [('l', 'limit', 10, _('the number of events to show')),
     ],
     _('hg blackbox [OPTION]...'))
 def blackbox(ui, repo, *revs, **opts):
     '''view the recent repository events
     '''
 
     if not os.path.exists(repo.join('blackbox.log')):
         return
 
     limit = opts.get('limit')
-    blackbox = repo.opener('blackbox.log', 'r')
+    blackbox = repo.vfs('blackbox.log', 'r')
     lines = blackbox.read().split('\n')
 
     count = 0
     output = []
     for line in reversed(lines):
         if count >= limit:
             break
 
         # count the commands by matching lines like: 2013/01/23 19:13:36 root>
         if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line):
             count += 1
         output.append(line)
 
     ui.status('\n'.join(reversed(output)))

hgext/eol.py

@@ -1,350 +1,350 b''
 """automatically manage newlines in repository files
 
 This extension allows you to manage the type of line endings (CRLF or
 LF) that are used in the repository and in the local working
 directory. That way you can get CRLF line endings on Windows and LF on
 Unix/Mac, thereby letting everybody use their OS native line endings.
 
 The extension reads its configuration from a versioned ``.hgeol``
 configuration file found in the root of the working copy. The
 ``.hgeol`` file use the same syntax as all other Mercurial
 configuration files. It uses two sections, ``[patterns]`` and
 ``[repository]``.
 
 The ``[patterns]`` section specifies how line endings should be
 converted between the working copy and the repository. The format is
 specified by a file pattern. The first match is used, so put more
 specific patterns first. The available line endings are ``LF``,
 ``CRLF``, and ``BIN``.
 
 Files with the declared format of ``CRLF`` or ``LF`` are always
 checked out and stored in the repository in that format and files
 declared to be binary (``BIN``) are left unchanged. Additionally,
 ``native`` is an alias for checking out in the platform's default line
 ending: ``LF`` on Unix (including Mac OS X) and ``CRLF`` on
 Windows. Note that ``BIN`` (do nothing to line endings) is Mercurial's
 default behaviour; it is only needed if you need to override a later,
 more general pattern.
 
 The optional ``[repository]`` section specifies the line endings to
 use for files stored in the repository. It has a single setting,
 ``native``, which determines the storage line endings for files
 declared as ``native`` in the ``[patterns]`` section. It can be set to
 ``LF`` or ``CRLF``. The default is ``LF``. For example, this means
 that on Windows, files configured as ``native`` (``CRLF`` by default)
 will be converted to ``LF`` when stored in the repository. Files
 declared as ``LF``, ``CRLF``, or ``BIN`` in the ``[patterns]`` section
 are always stored as-is in the repository.
 
 Example versioned ``.hgeol`` file::
 
   [patterns]
   **.py = native
   **.vcproj = CRLF
   **.txt = native
   Makefile = LF
   **.jpg = BIN
 
   [repository]
   native = LF
 
 .. note::
 
    The rules will first apply when files are touched in the working
    copy, e.g. by updating to null and back to tip to touch all files.
 
 The extension uses an optional ``[eol]`` section read from both the
 normal Mercurial configuration files and the ``.hgeol`` file, with the
 latter overriding the former. You can use that section to control the
 overall behavior. There are three settings:
 
 - ``eol.native`` (default ``os.linesep``) can be set to ``LF`` or
   ``CRLF`` to override the default interpretation of ``native`` for
   checkout. This can be used with :hg:`archive` on Unix, say, to
   generate an archive where files have line endings for Windows.
 
 - ``eol.only-consistent`` (default True) can be set to False to make
   the extension convert files with inconsistent EOLs. Inconsistent
   means that there is both ``CRLF`` and ``LF`` present in the file.
   Such files are normally not touched under the assumption that they
   have mixed EOLs on purpose.
 
 - ``eol.fix-trailing-newline`` (default False) can be set to True to
   ensure that converted files end with a EOL character (either ``\\n``
   or ``\\r\\n`` as per the configured patterns).
 
 The extension provides ``cleverencode:`` and ``cleverdecode:`` filters
 like the deprecated win32text extension does. This means that you can
 disable win32text and enable eol and your filters will still work. You
 only need to these filters until you have prepared a ``.hgeol`` file.
 
 The ``win32text.forbid*`` hooks provided by the win32text extension
 have been unified into a single hook named ``eol.checkheadshook``. The
 hook will lookup the expected line endings from the ``.hgeol`` file,
 which means you must migrate to a ``.hgeol`` file first before using
 the hook. ``eol.checkheadshook`` only checks heads, intermediate
 invalid revisions will be pushed. To forbid them completely, use the
 ``eol.checkallhook`` hook. These hooks are best used as
 ``pretxnchangegroup`` hooks.
 
 See :hg:`help patterns` for more information about the glob patterns
 used.
 """
 
 from mercurial.i18n import _
 from mercurial import util, config, extensions, match, error
 import re, os
 
 testedwith = 'internal'
 
 # Matches a lone LF, i.e., one that is not part of CRLF.
 singlelf = re.compile('(^|[^\r])\n')
 # Matches a single EOL which can either be a CRLF where repeated CR
 # are removed or a LF. We do not care about old Macintosh files, so a
 # stray CR is an error.
 eolre = re.compile('\r*\n')
 
 
 def inconsistenteol(data):
     return '\r\n' in data and singlelf.search(data)
 
 def tolf(s, params, ui, **kwargs):
     """Filter to convert to LF EOLs."""
     if util.binary(s):
         return s
     if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s):
         return s
     if (ui.configbool('eol', 'fix-trailing-newline', False)
         and s and s[-1] != '\n'):
         s = s + '\n'
     return eolre.sub('\n', s)
 
 def tocrlf(s, params, ui, **kwargs):
     """Filter to convert to CRLF EOLs."""
     if util.binary(s):
         return s
     if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s):
         return s
     if (ui.configbool('eol', 'fix-trailing-newline', False)
         and s and s[-1] != '\n'):
         s = s + '\n'
     return eolre.sub('\r\n', s)
 
 def isbinary(s, params):
     """Filter to do nothing with the file."""
     return s
 
 filters = {
     'to-lf': tolf,
     'to-crlf': tocrlf,
     'is-binary': isbinary,
     # The following provide backwards compatibility with win32text
     'cleverencode:': tolf,
     'cleverdecode:': tocrlf
 }
 
 class eolfile(object):
     def __init__(self, ui, root, data):
         self._decode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'}
         self._encode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'}
 
         self.cfg = config.config()
         # Our files should not be touched. The pattern must be
         # inserted first override a '** = native' pattern.
         self.cfg.set('patterns', '.hg*', 'BIN', 'eol')
         # We can then parse the user's patterns.
         self.cfg.parse('.hgeol', data)
 
         isrepolf = self.cfg.get('repository', 'native') != 'CRLF'
         self._encode['NATIVE'] = isrepolf and 'to-lf' or 'to-crlf'
         iswdlf = ui.config('eol', 'native', os.linesep) in ('LF', '\n')
         self._decode['NATIVE'] = iswdlf and 'to-lf' or 'to-crlf'
 
         include = []
         exclude = []
         for pattern, style in self.cfg.items('patterns'):
             key = style.upper()
             if key == 'BIN':
                 exclude.append(pattern)
             else:
                 include.append(pattern)
         # This will match the files for which we need to care
         # about inconsistent newlines.
         self.match = match.match(root, '', [], include, exclude)
 
     def copytoui(self, ui):
         for pattern, style in self.cfg.items('patterns'):
             key = style.upper()
             try:
                 ui.setconfig('decode', pattern, self._decode[key], 'eol')
                 ui.setconfig('encode', pattern, self._encode[key], 'eol')
             except KeyError:
                 ui.warn(_("ignoring unknown EOL style '%s' from %s\n")
                         % (style, self.cfg.source('patterns', pattern)))
         # eol.only-consistent can be specified in ~/.hgrc or .hgeol
         for k, v in self.cfg.items('eol'):
             ui.setconfig('eol', k, v, 'eol')
 
     def checkrev(self, repo, ctx, files):
         failed = []
         for f in (files or ctx.files()):
             if f not in ctx:
                 continue
             for pattern, style in self.cfg.items('patterns'):
                 if not match.match(repo.root, '', [pattern])(f):
                     continue
                 target = self._encode[style.upper()]
                 data = ctx[f].data()
                 if (target == "to-lf" and "\r\n" in data
                     or target == "to-crlf" and singlelf.search(data)):
                     failed.append((str(ctx), target, f))
                 break
         return failed
 
 def parseeol(ui, repo, nodes):
     try:
         for node in nodes:
             try:
                 if node is None:
                     # Cannot use workingctx.data() since it would load
                     # and cache the filters before we configure them.
                     data = repo.wfile('.hgeol').read()
                 else:
                     data = repo[node]['.hgeol'].data()
                 return eolfile(ui, repo.root, data)
             except (IOError, LookupError):
                 pass
     except error.ParseError, inst:
         ui.warn(_("warning: ignoring .hgeol file due to parse error "
                   "at %s: %s\n") % (inst.args[1], inst.args[0]))
     return None
 
 def _checkhook(ui, repo, node, headsonly):
     # Get revisions to check and touched files at the same time
     files = set()
     revs = set()
     for rev in xrange(repo[node].rev(), len(repo)):
         revs.add(rev)
         if headsonly:
             ctx = repo[rev]
             files.update(ctx.files())
             for pctx in ctx.parents():
                 revs.discard(pctx.rev())
     failed = []
     for rev in revs:
         ctx = repo[rev]
         eol = parseeol(ui, repo, [ctx.node()])
         if eol:
             failed.extend(eol.checkrev(repo, ctx, files))
 
     if failed:
         eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'}
         msgs = []
         for node, target, f in failed:
             msgs.append(_("  %s in %s should not have %s line endings") %
                         (f, node, eols[target]))
         raise util.Abort(_("end-of-line check failed:\n") + "\n".join(msgs))
 
 def checkallhook(ui, repo, node, hooktype, **kwargs):
     """verify that files have expected EOLs"""
     _checkhook(ui, repo, node, False)
 
 def checkheadshook(ui, repo, node, hooktype, **kwargs):
     """verify that files have expected EOLs"""
     _checkhook(ui, repo, node, True)
 
 # "checkheadshook" used to be called "hook"
 hook = checkheadshook
 
 def preupdate(ui, repo, hooktype, parent1, parent2):
     repo.loadeol([parent1])
     return False
 
 def uisetup(ui):
     ui.setconfig('hooks', 'preupdate.eol', preupdate, 'eol')
 
 def extsetup(ui):
     try:
         extensions.find('win32text')
         ui.warn(_("the eol extension is incompatible with the "
                   "win32text extension\n"))
     except KeyError:
         pass
 
 
 def reposetup(ui, repo):
     uisetup(repo.ui)
 
     if not repo.local():
         return
     for name, fn in filters.iteritems():
         repo.adddatafilter(name, fn)
 
     ui.setconfig('patch', 'eol', 'auto', 'eol')
 
     class eolrepo(repo.__class__):
 
         def loadeol(self, nodes):
             eol = parseeol(self.ui, self, nodes)
             if eol is None:
                 return None
             eol.copytoui(self.ui)
             return eol.match
 
         def _hgcleardirstate(self):
             self._eolfile = self.loadeol([None, 'tip'])
             if not self._eolfile:
                 self._eolfile = util.never
                 return
 
             try:
                 cachemtime = os.path.getmtime(self.join("eol.cache"))
             except OSError:
                 cachemtime = 0
 
             try:
                 eolmtime = os.path.getmtime(self.wjoin(".hgeol"))
             except OSError:
                 eolmtime = 0
 
             if eolmtime > cachemtime:
                 self.ui.debug("eol: detected change in .hgeol\n")
                 wlock = None
                 try:
                     wlock = self.wlock()
                     for f in self.dirstate:
                         if self.dirstate[f] == 'n':
                             # all normal files need to be looked at
                             # again since the new .hgeol file might no
                             # longer match a file it matched before
                             self.dirstate.normallookup(f)
                     # Create or touch the cache to update mtime
-                    self.opener("eol.cache", "w").close()
+                    self.vfs("eol.cache", "w").close()
                     wlock.release()
                 except error.LockUnavailable:
                     # If we cannot lock the repository and clear the
                     # dirstate, then a commit might not see all files
                     # as modified. But if we cannot lock the
                     # repository, then we can also not make a commit,
                     # so ignore the error.
                     pass
 
         def commitctx(self, ctx, error=False):
             for f in sorted(ctx.added() + ctx.modified()):
                 if not self._eolfile(f):
                     continue
                 fctx = ctx[f]
                 if fctx is None:
                     continue
                 data = fctx.data()
                 if util.binary(data):
                     # We should not abort here, since the user should
                     # be able to say "** = native" to automatically
                     # have all non-binary files taken care of.
                     continue
                 if inconsistenteol(data):
                     raise util.Abort(_("inconsistent newline style "
                                        "in %s\n") % f)
             return super(eolrepo, self).commitctx(ctx, error)
     repo.__class__ = eolrepo
     repo._hgcleardirstate()

hgext/gpg.py

@@ -1,297 +1,297 b''
 # Copyright 2005, 2006 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.
 
 '''commands to sign and verify changesets'''
 
 import os, tempfile, binascii
 from mercurial import util, commands, match, cmdutil
 from mercurial import node as hgnode
 from mercurial.i18n import _
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 class gpg(object):
     def __init__(self, path, key=None):
         self.path = path
         self.key = (key and " --local-user \"%s\"" % key) or ""
 
     def sign(self, data):
         gpgcmd = "%s --sign --detach-sign%s" % (self.path, self.key)
         return util.filter(data, gpgcmd)
 
     def verify(self, data, sig):
         """ returns of the good and bad signatures"""
         sigfile = datafile = None
         try:
             # create temporary files
             fd, sigfile = tempfile.mkstemp(prefix="hg-gpg-", suffix=".sig")
             fp = os.fdopen(fd, 'wb')
             fp.write(sig)
             fp.close()
             fd, datafile = tempfile.mkstemp(prefix="hg-gpg-", suffix=".txt")
             fp = os.fdopen(fd, 'wb')
             fp.write(data)
             fp.close()
             gpgcmd = ("%s --logger-fd 1 --status-fd 1 --verify "
                       "\"%s\" \"%s\"" % (self.path, sigfile, datafile))
             ret = util.filter("", gpgcmd)
         finally:
             for f in (sigfile, datafile):
                 try:
                     if f:
                         os.unlink(f)
                 except OSError:
                     pass
         keys = []
         key, fingerprint = None, None
         for l in ret.splitlines():
             # see DETAILS in the gnupg documentation
             # filter the logger output
             if not l.startswith("[GNUPG:]"):
                 continue
             l = l[9:]
             if l.startswith("VALIDSIG"):
                 # fingerprint of the primary key
                 fingerprint = l.split()[10]
             elif l.startswith("ERRSIG"):
                 key = l.split(" ", 3)[:2]
                 key.append("")
                 fingerprint = None
             elif (l.startswith("GOODSIG") or
                   l.startswith("EXPSIG") or
                   l.startswith("EXPKEYSIG") or
                   l.startswith("BADSIG")):
                 if key is not None:
                     keys.append(key + [fingerprint])
                 key = l.split(" ", 2)
                 fingerprint = None
         if key is not None:
             keys.append(key + [fingerprint])
         return keys
 
 def newgpg(ui, **opts):
     """create a new gpg instance"""
     gpgpath = ui.config("gpg", "cmd", "gpg")
     gpgkey = opts.get('key')
     if not gpgkey:
         gpgkey = ui.config("gpg", "key", None)
     return gpg(gpgpath, gpgkey)
 
 def sigwalk(repo):
     """
     walk over every sigs, yields a couple
     ((node, version, sig), (filename, linenumber))
     """
     def parsefile(fileiter, context):
         ln = 1
         for l in fileiter:
             if not l:
                 continue
             yield (l.split(" ", 2), (context, ln))
             ln += 1
 
     # read the heads
     fl = repo.file(".hgsigs")
     for r in reversed(fl.heads()):
         fn = ".hgsigs|%s" % hgnode.short(r)
         for item in parsefile(fl.read(r).splitlines(), fn):
             yield item
     try:
         # read local signatures
         fn = "localsigs"
-        for item in parsefile(repo.opener(fn), fn):
+        for item in parsefile(repo.vfs(fn), fn):
             yield item
     except IOError:
         pass
 
 def getkeys(ui, repo, mygpg, sigdata, context):
     """get the keys who signed a data"""
     fn, ln = context
     node, version, sig = sigdata
     prefix = "%s:%d" % (fn, ln)
     node = hgnode.bin(node)
 
     data = node2txt(repo, node, version)
     sig = binascii.a2b_base64(sig)
     keys = mygpg.verify(data, sig)
 
     validkeys = []
     # warn for expired key and/or sigs
     for key in keys:
         if key[0] == "ERRSIG":
             ui.write(_("%s Unknown key ID \"%s\"\n")
                      % (prefix, shortkey(ui, key[1][:15])))
             continue
         if key[0] == "BADSIG":
             ui.write(_("%s Bad signature from \"%s\"\n") % (prefix, key[2]))
             continue
         if key[0] == "EXPSIG":
             ui.write(_("%s Note: Signature has expired"
                        " (signed by: \"%s\")\n") % (prefix, key[2]))
         elif key[0] == "EXPKEYSIG":
             ui.write(_("%s Note: This key has expired"
                        " (signed by: \"%s\")\n") % (prefix, key[2]))
         validkeys.append((key[1], key[2], key[3]))
     return validkeys
 
 @command("sigs", [], _('hg sigs'))
 def sigs(ui, repo):
     """list signed changesets"""
     mygpg = newgpg(ui)
     revs = {}
 
     for data, context in sigwalk(repo):
         node, version, sig = data
         fn, ln = context
         try:
             n = repo.lookup(node)
         except KeyError:
             ui.warn(_("%s:%d node does not exist\n") % (fn, ln))
             continue
         r = repo.changelog.rev(n)
         keys = getkeys(ui, repo, mygpg, data, context)
         if not keys:
             continue
         revs.setdefault(r, [])
         revs[r].extend(keys)
     for rev in sorted(revs, reverse=True):
         for k in revs[rev]:
             r = "%5d:%s" % (rev, hgnode.hex(repo.changelog.node(rev)))
             ui.write("%-30s %s\n" % (keystr(ui, k), r))
 
 @command("sigcheck", [], _('hg sigcheck REV'))
 def check(ui, repo, rev):
     """verify all the signatures there may be for a particular revision"""
     mygpg = newgpg(ui)
     rev = repo.lookup(rev)
     hexrev = hgnode.hex(rev)
     keys = []
 
     for data, context in sigwalk(repo):
         node, version, sig = data
         if node == hexrev:
             k = getkeys(ui, repo, mygpg, data, context)
             if k:
                 keys.extend(k)
 
     if not keys:
         ui.write(_("no valid signature for %s\n") % hgnode.short(rev))
         return
 
     # print summary
     ui.write("%s is signed by:\n" % hgnode.short(rev))
     for key in keys:
         ui.write(" %s\n" % keystr(ui, key))
 
 def keystr(ui, key):
     """associate a string to a key (username, comment)"""
     keyid, user, fingerprint = key
     comment = ui.config("gpg", fingerprint, None)
     if comment:
         return "%s (%s)" % (user, comment)
     else:
         return user
 
 @command("sign",
          [('l', 'local', None, _('make the signature local')),
           ('f', 'force', None, _('sign even if the sigfile is modified')),
           ('', 'no-commit', None, _('do not commit the sigfile after signing')),
           ('k', 'key', '',
            _('the key id to sign with'), _('ID')),
           ('m', 'message', '',
            _('use text as commit message'), _('TEXT')),
           ('e', 'edit', False, _('invoke editor on commit messages')),
          ] + commands.commitopts2,
          _('hg sign [OPTION]... [REV]...'))
 def sign(ui, repo, *revs, **opts):
     """add a signature for the current or given revision
 
     If no revision is given, the parent of the working directory is used,
     or tip if no revision is checked out.
 
     See :hg:`help dates` for a list of formats valid for -d/--date.
     """
 
     mygpg = newgpg(ui, **opts)
     sigver = "0"
     sigmessage = ""
 
     date = opts.get('date')
     if date:
         opts['date'] = util.parsedate(date)
 
     if revs:
         nodes = [repo.lookup(n) for n in revs]
     else:
         nodes = [node for node in repo.dirstate.parents()
                  if node != hgnode.nullid]
         if len(nodes) > 1:
             raise util.Abort(_('uncommitted merge - please provide a '
                                'specific revision'))
         if not nodes:
             nodes = [repo.changelog.tip()]
 
     for n in nodes:
         hexnode = hgnode.hex(n)
         ui.write(_("signing %d:%s\n") % (repo.changelog.rev(n),
                                          hgnode.short(n)))
         # build data
         data = node2txt(repo, n, sigver)
         sig = mygpg.sign(data)
         if not sig:
             raise util.Abort(_("error while signing"))
         sig = binascii.b2a_base64(sig)
         sig = sig.replace("\n", "")
         sigmessage += "%s %s %s\n" % (hexnode, sigver, sig)
 
     # write it
     if opts['local']:
-        repo.opener.append("localsigs", sigmessage)
+        repo.vfs.append("localsigs", sigmessage)
         return
 
     if not opts["force"]:
         msigs = match.exact(repo.root, '', ['.hgsigs'])
         if util.any(repo.status(match=msigs, unknown=True, ignored=True)):
             raise util.Abort(_("working copy of .hgsigs is changed "),
                              hint=_("please commit .hgsigs manually"))
 
     sigsfile = repo.wfile(".hgsigs", "ab")
     sigsfile.write(sigmessage)
     sigsfile.close()
 
     if '.hgsigs' not in repo.dirstate:
         repo[None].add([".hgsigs"])
 
     if opts["no_commit"]:
         return
 
     message = opts['message']
     if not message:
         # we don't translate commit messages
         message = "\n".join(["Added signature for changeset %s"
                              % hgnode.short(n)
                              for n in nodes])
     try:
         editor = cmdutil.getcommiteditor(editform='gpg.sign', **opts)
         repo.commit(message, opts['user'], opts['date'], match=msigs,
                     editor=editor)
     except ValueError, inst:
         raise util.Abort(str(inst))
 
 def shortkey(ui, key):
     if len(key) != 16:
         ui.debug("key ID \"%s\" format error\n" % key)
         return key
 
     return key[-8:]
 
 def node2txt(repo, node, ver):
     """map a manifest into some text"""
     if ver == "0":
         return "%s\n" % hgnode.hex(node)
     else:
         raise util.Abort(_("unknown signature version"))

hgext/keyword.py

@@ -1,749 +1,749 b''
 # keyword.py - $Keyword$ expansion for Mercurial
 #
 # Copyright 2007-2015 Christian Ebert <[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.
 #
 # $Id$
 #
 # Keyword expansion hack against the grain of a Distributed SCM
 #
 # There are many good reasons why this is not needed in a distributed
 # SCM, still it may be useful in very small projects based on single
 # files (like LaTeX packages), that are mostly addressed to an
 # audience not running a version control system.
 #
 # For in-depth discussion refer to
 # <http://mercurial.selenic.com/wiki/KeywordPlan>.
 #
 # Keyword expansion is based on Mercurial's changeset template mappings.
 #
 # Binary files are not touched.
 #
 # Files to act upon/ignore are specified in the [keyword] section.
 # Customized keyword template mappings in the [keywordmaps] section.
 #
 # Run "hg help keyword" and "hg kwdemo" to get info on configuration.
 
 '''expand keywords in tracked files
 
 This extension expands RCS/CVS-like or self-customized $Keywords$ in
 tracked text files selected by your configuration.
 
 Keywords are only expanded in local repositories and not stored in the
 change history. The mechanism can be regarded as a convenience for the
 current user or for archive distribution.
 
 Keywords expand to the changeset data pertaining to the latest change
 relative to the working directory parent of each file.
 
 Configuration is done in the [keyword], [keywordset] and [keywordmaps]
 sections of hgrc files.
 
 Example::
 
     [keyword]
     # expand keywords in every python file except those matching "x*"
     **.py =
     x*    = ignore
 
     [keywordset]
     # prefer svn- over cvs-like default keywordmaps
     svn = True
 
 .. note::
 
    The more specific you are in your filename patterns the less you
    lose speed in huge repositories.
 
 For [keywordmaps] template mapping and expansion demonstration and
 control run :hg:`kwdemo`. See :hg:`help templates` for a list of
 available templates and filters.
 
 Three additional date template filters are provided:
 
 :``utcdate``:    "2006/09/18 15:13:13"
 :``svnutcdate``: "2006-09-18 15:13:13Z"
 :``svnisodate``: "2006-09-18 08:13:13 -700 (Mon, 18 Sep 2006)"
 
 The default template mappings (view with :hg:`kwdemo -d`) can be
 replaced with customized keywords and templates. Again, run
 :hg:`kwdemo` to control the results of your configuration changes.
 
 Before changing/disabling active keywords, you must run :hg:`kwshrink`
 to avoid storing expanded keywords in the change history.
 
 To force expansion after enabling it, or a configuration change, run
 :hg:`kwexpand`.
 
 Expansions spanning more than one line and incremental expansions,
 like CVS' $Log$, are not supported. A keyword template map "Log =
 {desc}" expands to the first line of the changeset description.
 '''
 
 from mercurial import commands, context, cmdutil, dispatch, filelog, extensions
 from mercurial import localrepo, match, patch, templatefilters, templater, util
 from mercurial import scmutil, pathutil
 from mercurial.hgweb import webcommands
 from mercurial.i18n import _
 import os, re, tempfile
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 # hg commands that do not act on keywords
 nokwcommands = ('add addremove annotate bundle export grep incoming init log'
                 ' outgoing push tip verify convert email glog')
 
 # hg commands that trigger expansion only when writing to working dir,
 # not when reading filelog, and unexpand when reading from working dir
 restricted = ('merge kwexpand kwshrink record qrecord resolve transplant'
               ' unshelve rebase graft backout histedit fetch')
 
 # names of extensions using dorecord
 recordextensions = 'record'
 
 colortable = {
     'kwfiles.enabled': 'green bold',
     'kwfiles.deleted': 'cyan bold underline',
     'kwfiles.enabledunknown': 'green',
     'kwfiles.ignored': 'bold',
     'kwfiles.ignoredunknown': 'none'
 }
 
 # date like in cvs' $Date
 def utcdate(text):
     ''':utcdate: Date. Returns a UTC-date in this format: "2009/08/18 11:00:13".
     '''
     return util.datestr((util.parsedate(text)[0], 0), '%Y/%m/%d %H:%M:%S')
 # date like in svn's $Date
 def svnisodate(text):
     ''':svnisodate: Date. Returns a date in this format: "2009-08-18 13:00:13
     +0200 (Tue, 18 Aug 2009)".
     '''
     return util.datestr(text, '%Y-%m-%d %H:%M:%S %1%2 (%a, %d %b %Y)')
 # date like in svn's $Id
 def svnutcdate(text):
     ''':svnutcdate: Date. Returns a UTC-date in this format: "2009-08-18
     11:00:13Z".
     '''
     return util.datestr((util.parsedate(text)[0], 0), '%Y-%m-%d %H:%M:%SZ')
 
 templatefilters.filters.update({'utcdate': utcdate,
                                 'svnisodate': svnisodate,
                                 'svnutcdate': svnutcdate})
 
 # make keyword tools accessible
 kwtools = {'templater': None, 'hgcmd': ''}
 
 def _defaultkwmaps(ui):
     '''Returns default keywordmaps according to keywordset configuration.'''
     templates = {
         'Revision': '{node|short}',
         'Author': '{author|user}',
     }
     kwsets = ({
         'Date': '{date|utcdate}',
         'RCSfile': '{file|basename},v',
         'RCSFile': '{file|basename},v', # kept for backwards compatibility
                                         # with hg-keyword
         'Source': '{root}/{file},v',
         'Id': '{file|basename},v {node|short} {date|utcdate} {author|user}',
         'Header': '{root}/{file},v {node|short} {date|utcdate} {author|user}',
     }, {
         'Date': '{date|svnisodate}',
         'Id': '{file|basename},v {node|short} {date|svnutcdate} {author|user}',
         'LastChangedRevision': '{node|short}',
         'LastChangedBy': '{author|user}',
         'LastChangedDate': '{date|svnisodate}',
     })
     templates.update(kwsets[ui.configbool('keywordset', 'svn')])
     return templates
 
 def _shrinktext(text, subfunc):
     '''Helper for keyword expansion removal in text.
     Depending on subfunc also returns number of substitutions.'''
     return subfunc(r'$\1$', text)
 
 def _preselect(wstatus, changed):
     '''Retrieves modified and added files from a working directory state
     and returns the subset of each contained in given changed files
     retrieved from a change context.'''
     modified = [f for f in wstatus.modified if f in changed]
     added = [f for f in wstatus.added if f in changed]
     return modified, added
 
 
 class kwtemplater(object):
     '''
     Sets up keyword templates, corresponding keyword regex, and
     provides keyword substitution functions.
     '''
 
     def __init__(self, ui, repo, inc, exc):
         self.ui = ui
         self.repo = repo
         self.match = match.match(repo.root, '', [], inc, exc)
         self.restrict = kwtools['hgcmd'] in restricted.split()
         self.postcommit = False
 
         kwmaps = self.ui.configitems('keywordmaps')
         if kwmaps: # override default templates
             self.templates = dict((k, templater.parsestring(v, False))
                                   for k, v in kwmaps)
         else:
             self.templates = _defaultkwmaps(self.ui)
 
     @util.propertycache
     def escape(self):
         '''Returns bar-separated and escaped keywords.'''
         return '|'.join(map(re.escape, self.templates.keys()))
 
     @util.propertycache
     def rekw(self):
         '''Returns regex for unexpanded keywords.'''
         return re.compile(r'\$(%s)\$' % self.escape)
 
     @util.propertycache
     def rekwexp(self):
         '''Returns regex for expanded keywords.'''
         return re.compile(r'\$(%s): [^$\n\r]*? \$' % self.escape)
 
     def substitute(self, data, path, ctx, subfunc):
         '''Replaces keywords in data with expanded template.'''
         def kwsub(mobj):
             kw = mobj.group(1)
             ct = cmdutil.changeset_templater(self.ui, self.repo, False, None,
                                              self.templates[kw], '', False)
             self.ui.pushbuffer()
             ct.show(ctx, root=self.repo.root, file=path)
             ekw = templatefilters.firstline(self.ui.popbuffer())
             return '$%s: %s $' % (kw, ekw)
         return subfunc(kwsub, data)
 
     def linkctx(self, path, fileid):
         '''Similar to filelog.linkrev, but returns a changectx.'''
         return self.repo.filectx(path, fileid=fileid).changectx()
 
     def expand(self, path, node, data):
         '''Returns data with keywords expanded.'''
         if not self.restrict and self.match(path) and not util.binary(data):
             ctx = self.linkctx(path, node)
             return self.substitute(data, path, ctx, self.rekw.sub)
         return data
 
     def iskwfile(self, cand, ctx):
         '''Returns subset of candidates which are configured for keyword
         expansion but are not symbolic links.'''
         return [f for f in cand if self.match(f) and 'l' not in ctx.flags(f)]
 
     def overwrite(self, ctx, candidates, lookup, expand, rekw=False):
         '''Overwrites selected files expanding/shrinking keywords.'''
         if self.restrict or lookup or self.postcommit: # exclude kw_copy
             candidates = self.iskwfile(candidates, ctx)
         if not candidates:
             return
         kwcmd = self.restrict and lookup # kwexpand/kwshrink
         if self.restrict or expand and lookup:
             mf = ctx.manifest()
         if self.restrict or rekw:
             re_kw = self.rekw
         else:
             re_kw = self.rekwexp
         if expand:
             msg = _('overwriting %s expanding keywords\n')
         else:
             msg = _('overwriting %s shrinking keywords\n')
         for f in candidates:
             if self.restrict:
                 data = self.repo.file(f).read(mf[f])
             else:
                 data = self.repo.wread(f)
             if util.binary(data):
                 continue
             if expand:
                 parents = ctx.parents()
                 if lookup:
                     ctx = self.linkctx(f, mf[f])
                 elif self.restrict and len(parents) > 1:
                     # merge commit
                     # in case of conflict f is in modified state during
                     # merge, even if f does not differ from f in parent
                     for p in parents:
                         if f in p and not p[f].cmp(ctx[f]):
                             ctx = p[f].changectx()
                             break
                 data, found = self.substitute(data, f, ctx, re_kw.subn)
             elif self.restrict:
                 found = re_kw.search(data)
             else:
                 data, found = _shrinktext(data, re_kw.subn)
             if found:
                 self.ui.note(msg % f)
                 fp = self.repo.wopener(f, "wb", atomictemp=True)
                 fp.write(data)
                 fp.close()
                 if kwcmd:
                     self.repo.dirstate.normal(f)
                 elif self.postcommit:
                     self.repo.dirstate.normallookup(f)
 
     def shrink(self, fname, text):
         '''Returns text with all keyword substitutions removed.'''
         if self.match(fname) and not util.binary(text):
             return _shrinktext(text, self.rekwexp.sub)
         return text
 
     def shrinklines(self, fname, lines):
         '''Returns lines with keyword substitutions removed.'''
         if self.match(fname):
             text = ''.join(lines)
             if not util.binary(text):
                 return _shrinktext(text, self.rekwexp.sub).splitlines(True)
         return lines
 
     def wread(self, fname, data):
         '''If in restricted mode returns data read from wdir with
         keyword substitutions removed.'''
         if self.restrict:
             return self.shrink(fname, data)
         return data
 
 class kwfilelog(filelog.filelog):
     '''
     Subclass of filelog to hook into its read, add, cmp methods.
     Keywords are "stored" unexpanded, and processed on reading.
     '''
     def __init__(self, opener, kwt, path):
         super(kwfilelog, self).__init__(opener, path)
         self.kwt = kwt
         self.path = path
 
     def read(self, node):
         '''Expands keywords when reading filelog.'''
         data = super(kwfilelog, self).read(node)
         if self.renamed(node):
             return data
         return self.kwt.expand(self.path, node, data)
 
     def add(self, text, meta, tr, link, p1=None, p2=None):
         '''Removes keyword substitutions when adding to filelog.'''
         text = self.kwt.shrink(self.path, text)
         return super(kwfilelog, self).add(text, meta, tr, link, p1, p2)
 
     def cmp(self, node, text):
         '''Removes keyword substitutions for comparison.'''
         text = self.kwt.shrink(self.path, text)
         return super(kwfilelog, self).cmp(node, text)
 
 def _status(ui, repo, wctx, kwt, *pats, **opts):
     '''Bails out if [keyword] configuration is not active.
     Returns status of working directory.'''
     if kwt:
         return repo.status(match=scmutil.match(wctx, pats, opts), clean=True,
                            unknown=opts.get('unknown') or opts.get('all'))
     if ui.configitems('keyword'):
         raise util.Abort(_('[keyword] patterns cannot match'))
     raise util.Abort(_('no [keyword] patterns configured'))
 
 def _kwfwrite(ui, repo, expand, *pats, **opts):
     '''Selects files and passes them to kwtemplater.overwrite.'''
     wctx = repo[None]
     if len(wctx.parents()) > 1:
         raise util.Abort(_('outstanding uncommitted merge'))
     kwt = kwtools['templater']
     wlock = repo.wlock()
     try:
         status = _status(ui, repo, wctx, kwt, *pats, **opts)
         if status.modified or status.added or status.removed or status.deleted:
             raise util.Abort(_('outstanding uncommitted changes'))
         kwt.overwrite(wctx, status.clean, True, expand)
     finally:
         wlock.release()
 
 @command('kwdemo',
          [('d', 'default', None, _('show default keyword template maps')),
           ('f', 'rcfile', '',
            _('read maps from rcfile'), _('FILE'))],
          _('hg kwdemo [-d] [-f RCFILE] [TEMPLATEMAP]...'),
          optionalrepo=True)
 def demo(ui, repo, *args, **opts):
     '''print [keywordmaps] configuration and an expansion example
 
     Show current, custom, or default keyword template maps and their
     expansions.
 
     Extend the current configuration by specifying maps as arguments
     and using -f/--rcfile to source an external hgrc file.
 
     Use -d/--default to disable current configuration.
 
     See :hg:`help templates` for information on templates and filters.
     '''
     def demoitems(section, items):
         ui.write('[%s]\n' % section)
         for k, v in sorted(items):
             ui.write('%s = %s\n' % (k, v))
 
     fn = 'demo.txt'
     tmpdir = tempfile.mkdtemp('', 'kwdemo.')
     ui.note(_('creating temporary repository at %s\n') % tmpdir)
     repo = localrepo.localrepository(repo.baseui, tmpdir, True)
     ui.setconfig('keyword', fn, '', 'keyword')
     svn = ui.configbool('keywordset', 'svn')
     # explicitly set keywordset for demo output
     ui.setconfig('keywordset', 'svn', svn, 'keyword')
 
     uikwmaps = ui.configitems('keywordmaps')
     if args or opts.get('rcfile'):
         ui.status(_('\n\tconfiguration using custom keyword template maps\n'))
         if uikwmaps:
             ui.status(_('\textending current template maps\n'))
         if opts.get('default') or not uikwmaps:
             if svn:
                 ui.status(_('\toverriding default svn keywordset\n'))
             else:
                 ui.status(_('\toverriding default cvs keywordset\n'))
         if opts.get('rcfile'):
             ui.readconfig(opts.get('rcfile'))
         if args:
             # simulate hgrc parsing
             rcmaps = ['[keywordmaps]\n'] + [a + '\n' for a in args]
-            fp = repo.opener('hgrc', 'w')
+            fp = repo.vfs('hgrc', 'w')
             fp.writelines(rcmaps)
             fp.close()
             ui.readconfig(repo.join('hgrc'))
         kwmaps = dict(ui.configitems('keywordmaps'))
     elif opts.get('default'):
         if svn:
             ui.status(_('\n\tconfiguration using default svn keywordset\n'))
         else:
             ui.status(_('\n\tconfiguration using default cvs keywordset\n'))
         kwmaps = _defaultkwmaps(ui)
         if uikwmaps:
             ui.status(_('\tdisabling current template maps\n'))
             for k, v in kwmaps.iteritems():
                 ui.setconfig('keywordmaps', k, v, 'keyword')
     else:
         ui.status(_('\n\tconfiguration using current keyword template maps\n'))
         if uikwmaps:
             kwmaps = dict(uikwmaps)
         else:
             kwmaps = _defaultkwmaps(ui)
 
     uisetup(ui)
     reposetup(ui, repo)
     ui.write('[extensions]\nkeyword =\n')
     demoitems('keyword', ui.configitems('keyword'))
     demoitems('keywordset', ui.configitems('keywordset'))
     demoitems('keywordmaps', kwmaps.iteritems())
     keywords = '$' + '$\n$'.join(sorted(kwmaps.keys())) + '$\n'
     repo.wopener.write(fn, keywords)
     repo[None].add([fn])
     ui.note(_('\nkeywords written to %s:\n') % fn)
     ui.note(keywords)
     wlock = repo.wlock()
     try:
         repo.dirstate.setbranch('demobranch')
     finally:
         wlock.release()
     for name, cmd in ui.configitems('hooks'):
         if name.split('.', 1)[0].find('commit') > -1:
             repo.ui.setconfig('hooks', name, '', 'keyword')
     msg = _('hg keyword configuration and expansion example')
     ui.note(("hg ci -m '%s'\n" % msg))
     repo.commit(text=msg)
     ui.status(_('\n\tkeywords expanded\n'))
     ui.write(repo.wread(fn))
     for root, dirs, files in os.walk(tmpdir):
         for f in files:
             util.unlinkpath(repo.vfs.reljoin(root, f))
 
 @command('kwexpand',
     commands.walkopts,
     _('hg kwexpand [OPTION]... [FILE]...'),
     inferrepo=True)
 def expand(ui, repo, *pats, **opts):
     '''expand keywords in the working directory
 
     Run after (re)enabling keyword expansion.
 
     kwexpand refuses to run if given files contain local changes.
     '''
     # 3rd argument sets expansion to True
     _kwfwrite(ui, repo, True, *pats, **opts)
 
 @command('kwfiles',
          [('A', 'all', None, _('show keyword status flags of all files')),
           ('i', 'ignore', None, _('show files excluded from expansion')),
           ('u', 'unknown', None, _('only show unknown (not tracked) files')),
          ] + commands.walkopts,
          _('hg kwfiles [OPTION]... [FILE]...'),
          inferrepo=True)
 def files(ui, repo, *pats, **opts):
     '''show files configured for keyword expansion
 
     List which files in the working directory are matched by the
     [keyword] configuration patterns.
 
     Useful to prevent inadvertent keyword expansion and to speed up
     execution by including only files that are actual candidates for
     expansion.
 
     See :hg:`help keyword` on how to construct patterns both for
     inclusion and exclusion of files.
 
     With -A/--all and -v/--verbose the codes used to show the status
     of files are::
 
       K = keyword expansion candidate
       k = keyword expansion candidate (not tracked)
       I = ignored
       i = ignored (not tracked)
     '''
     kwt = kwtools['templater']
     wctx = repo[None]
     status = _status(ui, repo, wctx, kwt, *pats, **opts)
     cwd = pats and repo.getcwd() or ''
     files = []
     if not opts.get('unknown') or opts.get('all'):
         files = sorted(status.modified + status.added + status.clean)
     kwfiles = kwt.iskwfile(files, wctx)
     kwdeleted = kwt.iskwfile(status.deleted, wctx)
     kwunknown = kwt.iskwfile(status.unknown, wctx)
     if not opts.get('ignore') or opts.get('all'):
         showfiles = kwfiles, kwdeleted, kwunknown
     else:
         showfiles = [], [], []
     if opts.get('all') or opts.get('ignore'):
         showfiles += ([f for f in files if f not in kwfiles],
                       [f for f in status.unknown if f not in kwunknown])
     kwlabels = 'enabled deleted enabledunknown ignored ignoredunknown'.split()
     kwstates = zip(kwlabels, 'K!kIi', showfiles)
     fm = ui.formatter('kwfiles', opts)
     fmt = '%.0s%s\n'
     if opts.get('all') or ui.verbose:
         fmt = '%s %s\n'
     for kwstate, char, filenames in kwstates:
         label = 'kwfiles.' + kwstate
         for f in filenames:
             fm.startitem()
             fm.write('kwstatus path', fmt, char,
                      repo.pathto(f, cwd), label=label)
     fm.end()
 
 @command('kwshrink',
     commands.walkopts,
     _('hg kwshrink [OPTION]... [FILE]...'),
     inferrepo=True)
 def shrink(ui, repo, *pats, **opts):
     '''revert expanded keywords in the working directory
 
     Must be run before changing/disabling active keywords.
 
     kwshrink refuses to run if given files contain local changes.
     '''
     # 3rd argument sets expansion to False
     _kwfwrite(ui, repo, False, *pats, **opts)
 
 
 def uisetup(ui):
     ''' Monkeypatches dispatch._parse to retrieve user command.'''
 
     def kwdispatch_parse(orig, ui, args):
         '''Monkeypatch dispatch._parse to obtain running hg command.'''
         cmd, func, args, options, cmdoptions = orig(ui, args)
         kwtools['hgcmd'] = cmd
         return cmd, func, args, options, cmdoptions
 
     extensions.wrapfunction(dispatch, '_parse', kwdispatch_parse)
 
 def reposetup(ui, repo):
     '''Sets up repo as kwrepo for keyword substitution.
     Overrides file method to return kwfilelog instead of filelog
     if file matches user configuration.
     Wraps commit to overwrite configured files with updated
     keyword substitutions.
     Monkeypatches patch and webcommands.'''
 
     try:
         if (not repo.local() or kwtools['hgcmd'] in nokwcommands.split()
             or '.hg' in util.splitpath(repo.root)
             or repo._url.startswith('bundle:')):
             return
     except AttributeError:
         pass
 
     inc, exc = [], ['.hg*']
     for pat, opt in ui.configitems('keyword'):
         if opt != 'ignore':
             inc.append(pat)
         else:
             exc.append(pat)
     if not inc:
         return
 
     kwtools['templater'] = kwt = kwtemplater(ui, repo, inc, exc)
 
     class kwrepo(repo.__class__):
         def file(self, f):
             if f[0] == '/':
                 f = f[1:]
             return kwfilelog(self.sopener, kwt, f)
 
         def wread(self, filename):
             data = super(kwrepo, self).wread(filename)
             return kwt.wread(filename, data)
 
         def commit(self, *args, **opts):
             # use custom commitctx for user commands
             # other extensions can still wrap repo.commitctx directly
             self.commitctx = self.kwcommitctx
             try:
                 return super(kwrepo, self).commit(*args, **opts)
             finally:
                 del self.commitctx
 
         def kwcommitctx(self, ctx, error=False):
             n = super(kwrepo, self).commitctx(ctx, error)
             # no lock needed, only called from repo.commit() which already locks
             if not kwt.postcommit:
                 restrict = kwt.restrict
                 kwt.restrict = True
                 kwt.overwrite(self[n], sorted(ctx.added() + ctx.modified()),
                               False, True)
                 kwt.restrict = restrict
             return n
 
         def rollback(self, dryrun=False, force=False):
             wlock = self.wlock()
             try:
                 if not dryrun:
                     changed = self['.'].files()
                 ret = super(kwrepo, self).rollback(dryrun, force)
                 if not dryrun:
                     ctx = self['.']
                     modified, added = _preselect(ctx.status(), changed)
                     kwt.overwrite(ctx, modified, True, True)
                     kwt.overwrite(ctx, added, True, False)
                 return ret
             finally:
                 wlock.release()
 
     # monkeypatches
     def kwpatchfile_init(orig, self, ui, gp, backend, store, eolmode=None):
         '''Monkeypatch/wrap patch.patchfile.__init__ to avoid
         rejects or conflicts due to expanded keywords in working dir.'''
         orig(self, ui, gp, backend, store, eolmode)
         # shrink keywords read from working dir
         self.lines = kwt.shrinklines(self.fname, self.lines)
 
     def kw_diff(orig, repo, node1=None, node2=None, match=None, changes=None,
                 opts=None, prefix=''):
         '''Monkeypatch patch.diff to avoid expansion.'''
         kwt.restrict = True
         return orig(repo, node1, node2, match, changes, opts, prefix)
 
     def kwweb_skip(orig, web, req, tmpl):
         '''Wraps webcommands.x turning off keyword expansion.'''
         kwt.match = util.never
         return orig(web, req, tmpl)
 
     def kw_amend(orig, ui, repo, commitfunc, old, extra, pats, opts):
         '''Wraps cmdutil.amend expanding keywords after amend.'''
         wlock = repo.wlock()
         try:
             kwt.postcommit = True
             newid = orig(ui, repo, commitfunc, old, extra, pats, opts)
             if newid != old.node():
                 ctx = repo[newid]
                 kwt.restrict = True
                 kwt.overwrite(ctx, ctx.files(), False, True)
                 kwt.restrict = False
             return newid
         finally:
             wlock.release()
 
     def kw_copy(orig, ui, repo, pats, opts, rename=False):
         '''Wraps cmdutil.copy so that copy/rename destinations do not
         contain expanded keywords.
         Note that the source of a regular file destination may also be a
         symlink:
         hg cp sym x                -> x is symlink
         cp sym x; hg cp -A sym x   -> x is file (maybe expanded keywords)
         For the latter we have to follow the symlink to find out whether its
         target is configured for expansion and we therefore must unexpand the
         keywords in the destination.'''
         wlock = repo.wlock()
         try:
             orig(ui, repo, pats, opts, rename)
             if opts.get('dry_run'):
                 return
             wctx = repo[None]
             cwd = repo.getcwd()
 
             def haskwsource(dest):
                 '''Returns true if dest is a regular file and configured for
                 expansion or a symlink which points to a file configured for
                 expansion. '''
                 source = repo.dirstate.copied(dest)
                 if 'l' in wctx.flags(source):
                     source = pathutil.canonpath(repo.root, cwd,
                                                os.path.realpath(source))
                 return kwt.match(source)
 
             candidates = [f for f in repo.dirstate.copies() if
                           'l' not in wctx.flags(f) and haskwsource(f)]
             kwt.overwrite(wctx, candidates, False, False)
         finally:
             wlock.release()
 
     def kw_dorecord(orig, ui, repo, commitfunc, *pats, **opts):
         '''Wraps record.dorecord expanding keywords after recording.'''
         wlock = repo.wlock()
         try:
             # record returns 0 even when nothing has changed
             # therefore compare nodes before and after
             kwt.postcommit = True
             ctx = repo['.']
             wstatus = ctx.status()
             ret = orig(ui, repo, commitfunc, *pats, **opts)
             recctx = repo['.']
             if ctx != recctx:
                 modified, added = _preselect(wstatus, recctx.files())
                 kwt.restrict = False
                 kwt.overwrite(recctx, modified, False, True)
                 kwt.overwrite(recctx, added, False, True, True)
                 kwt.restrict = True
             return ret
         finally:
             wlock.release()
 
     def kwfilectx_cmp(orig, self, fctx):
         # keyword affects data size, comparing wdir and filelog size does
         # not make sense
         if (fctx._filerev is None and
             (self._repo._encodefilterpats or
              kwt.match(fctx.path()) and 'l' not in fctx.flags() or
              self.size() - 4 == fctx.size()) or
             self.size() == fctx.size()):
             return self._filelog.cmp(self._filenode, fctx.data())
         return True
 
     extensions.wrapfunction(context.filectx, 'cmp', kwfilectx_cmp)
     extensions.wrapfunction(patch.patchfile, '__init__', kwpatchfile_init)
     extensions.wrapfunction(patch, 'diff', kw_diff)
     extensions.wrapfunction(cmdutil, 'amend', kw_amend)
     extensions.wrapfunction(cmdutil, 'copy', kw_copy)
     for c in 'annotate changeset rev filediff diff'.split():
         extensions.wrapfunction(webcommands, c, kwweb_skip)
     for name in recordextensions.split():
         try:
             record = extensions.find(name)
             extensions.wrapfunction(record, 'dorecord', kw_dorecord)
         except KeyError:
             pass
 
     repo.__class__ = kwrepo

hgext/mq.py

@@ -1,3552 +1,3552 b''
 # mq.py - patch queues for mercurial
 #
 # Copyright 2005, 2006 Chris Mason <[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.
 
 '''manage a stack of patches
 
 This extension lets you work with a stack of patches in a Mercurial
 repository. It manages two stacks of patches - all known patches, and
 applied patches (subset of known patches).
 
 Known patches are represented as patch files in the .hg/patches
 directory. Applied patches are both patch files and changesets.
 
 Common tasks (use :hg:`help command` for more details)::
 
   create new patch                          qnew
   import existing patch                     qimport
 
   print patch series                        qseries
   print applied patches                     qapplied
 
   add known patch to applied stack          qpush
   remove patch from applied stack           qpop
   refresh contents of top applied patch     qrefresh
 
 By default, mq will automatically use git patches when required to
 avoid losing file mode changes, copy records, binary files or empty
 files creations or deletions. This behaviour can be configured with::
 
   [mq]
   git = auto/keep/yes/no
 
 If set to 'keep', mq will obey the [diff] section configuration while
 preserving existing git patches upon qrefresh. If set to 'yes' or
 'no', mq will override the [diff] section and always generate git or
 regular patches, possibly losing data in the second case.
 
 It may be desirable for mq changesets to be kept in the secret phase (see
 :hg:`help phases`), which can be enabled with the following setting::
 
   [mq]
   secret = True
 
 You will by default be managing a patch queue named "patches". You can
 create other, independent patch queues with the :hg:`qqueue` command.
 
 If the working directory contains uncommitted files, qpush, qpop and
 qgoto abort immediately. If -f/--force is used, the changes are
 discarded. Setting::
 
   [mq]
   keepchanges = True
 
 make them behave as if --keep-changes were passed, and non-conflicting
 local changes will be tolerated and preserved. If incompatible options
 such as -f/--force or --exact are passed, this setting is ignored.
 
 This extension used to provide a strip command. This command now lives
 in the strip extension.
 '''
 
 from mercurial.i18n import _
 from mercurial.node import bin, hex, short, nullid, nullrev
 from mercurial.lock import release
 from mercurial import commands, cmdutil, hg, scmutil, util, revset
 from mercurial import extensions, error, phases
 from mercurial import patch as patchmod
 from mercurial import localrepo
 from mercurial import subrepo
 import os, re, errno, shutil
 
 seriesopts = [('s', 'summary', None, _('print first line of patch header'))]
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 # force load strip extension formerly included in mq and import some utility
 try:
     stripext = extensions.find('strip')
 except KeyError:
     # note: load is lazy so we could avoid the try-except,
     # but I (marmoute) prefer this explicit code.
     class dummyui(object):
         def debug(self, msg):
             pass
     stripext = extensions.load(dummyui(), 'strip', '')
 
 strip = stripext.strip
 checksubstate = stripext.checksubstate
 checklocalchanges = stripext.checklocalchanges
 
 
 # Patch names looks like unix-file names.
 # They must be joinable with queue directory and result in the patch path.
 normname = util.normpath
 
 class statusentry(object):
     def __init__(self, node, name):
         self.node, self.name = node, name
     def __repr__(self):
         return hex(self.node) + ':' + self.name
 
 # The order of the headers in 'hg export' HG patches:
 HGHEADERS = [
 #   '# HG changeset patch',
     '# User ',
     '# Date ',
     '#      ',
     '# Branch ',
     '# Node ID ',
     '# Parent  ', # can occur twice for merges - but that is not relevant for mq
     ]
 # The order of headers in plain 'mail style' patches:
 PLAINHEADERS = {
     'from': 0,
     'date': 1,
     'subject': 2,
     }
 
 def inserthgheader(lines, header, value):
     """Assuming lines contains a HG patch header, add a header line with value.
     >>> try: inserthgheader([], '# Date ', 'z')
     ... except ValueError, inst: print "oops"
     oops
     >>> inserthgheader(['# HG changeset patch'], '# Date ', 'z')
     ['# HG changeset patch', '# Date z']
     >>> inserthgheader(['# HG changeset patch', ''], '# Date ', 'z')
     ['# HG changeset patch', '# Date z', '']
     >>> inserthgheader(['# HG changeset patch', '# User y'], '# Date ', 'z')
     ['# HG changeset patch', '# User y', '# Date z']
     >>> inserthgheader(['# HG changeset patch', '# Date x', '# User y'],
     ...                '# User ', 'z')
     ['# HG changeset patch', '# Date x', '# User z']
     >>> inserthgheader(['# HG changeset patch', '# Date y'], '# Date ', 'z')
     ['# HG changeset patch', '# Date z']
     >>> inserthgheader(['# HG changeset patch', '', '# Date y'], '# Date ', 'z')
     ['# HG changeset patch', '# Date z', '', '# Date y']
     >>> inserthgheader(['# HG changeset patch', '# Parent  y'], '# Date ', 'z')
     ['# HG changeset patch', '# Date z', '# Parent  y']
     """
     start = lines.index('# HG changeset patch') + 1
     newindex = HGHEADERS.index(header)
     bestpos = len(lines)
     for i in range(start, len(lines)):
         line = lines[i]
         if not line.startswith('# '):
             bestpos = min(bestpos, i)
             break
         for lineindex, h in enumerate(HGHEADERS):
             if line.startswith(h):
                 if lineindex == newindex:
                     lines[i] = header + value
                     return lines
                 if lineindex > newindex:
                     bestpos = min(bestpos, i)
                 break # next line
     lines.insert(bestpos, header + value)
     return lines
 
 def insertplainheader(lines, header, value):
     """For lines containing a plain patch header, add a header line with value.
     >>> insertplainheader([], 'Date', 'z')
     ['Date: z']
     >>> insertplainheader([''], 'Date', 'z')
     ['Date: z', '']
     >>> insertplainheader(['x'], 'Date', 'z')
     ['Date: z', '', 'x']
     >>> insertplainheader(['From: y', 'x'], 'Date', 'z')
     ['From: y', 'Date: z', '', 'x']
     >>> insertplainheader([' date : x', ' from : y', ''], 'From', 'z')
     [' date : x', 'From: z', '']
     >>> insertplainheader(['', 'Date: y'], 'Date', 'z')
     ['Date: z', '', 'Date: y']
     >>> insertplainheader(['foo: bar', 'DATE: z', 'x'], 'From', 'y')
     ['From: y', 'foo: bar', 'DATE: z', '', 'x']
     """
     newprio = PLAINHEADERS[header.lower()]
     bestpos = len(lines)
     for i, line in enumerate(lines):
         if ':' in line:
             lheader = line.split(':', 1)[0].strip().lower()
             lprio = PLAINHEADERS.get(lheader, newprio + 1)
             if lprio == newprio:
                 lines[i] = '%s: %s' % (header, value)
                 return lines
             if lprio > newprio and i < bestpos:
                 bestpos = i
         else:
             if line:
                 lines.insert(i, '')
             if i < bestpos:
                 bestpos = i
             break
     lines.insert(bestpos, '%s: %s' % (header, value))
     return lines
 
 class patchheader(object):
     def __init__(self, pf, plainmode=False):
         def eatdiff(lines):
             while lines:
                 l = lines[-1]
                 if (l.startswith("diff -") or
                     l.startswith("Index:") or
                     l.startswith("===========")):
                     del lines[-1]
                 else:
                     break
         def eatempty(lines):
             while lines:
                 if not lines[-1].strip():
                     del lines[-1]
                 else:
                     break
 
         message = []
         comments = []
         user = None
         date = None
         parent = None
         format = None
         subject = None
         branch = None
         nodeid = None
         diffstart = 0
 
         for line in file(pf):
             line = line.rstrip()
             if (line.startswith('diff --git')
                 or (diffstart and line.startswith('+++ '))):
                 diffstart = 2
                 break
             diffstart = 0 # reset
             if line.startswith("--- "):
                 diffstart = 1
                 continue
             elif format == "hgpatch":
                 # parse values when importing the result of an hg export
                 if line.startswith("# User "):
                     user = line[7:]
                 elif line.startswith("# Date "):
                     date = line[7:]
                 elif line.startswith("# Parent "):
                     parent = line[9:].lstrip() # handle double trailing space
                 elif line.startswith("# Branch "):
                     branch = line[9:]
                 elif line.startswith("# Node ID "):
                     nodeid = line[10:]
                 elif not line.startswith("# ") and line:
                     message.append(line)
                     format = None
             elif line == '# HG changeset patch':
                 message = []
                 format = "hgpatch"
             elif (format != "tagdone" and (line.startswith("Subject: ") or
                                            line.startswith("subject: "))):
                 subject = line[9:]
                 format = "tag"
             elif (format != "tagdone" and (line.startswith("From: ") or
                                            line.startswith("from: "))):
                 user = line[6:]
                 format = "tag"
             elif (format != "tagdone" and (line.startswith("Date: ") or
                                            line.startswith("date: "))):
                 date = line[6:]
                 format = "tag"
             elif format == "tag" and line == "":
                 # when looking for tags (subject: from: etc) they
                 # end once you find a blank line in the source
                 format = "tagdone"
             elif message or line:
                 message.append(line)
             comments.append(line)
 
         eatdiff(message)
         eatdiff(comments)
         # Remember the exact starting line of the patch diffs before consuming
         # empty lines, for external use by TortoiseHg and others
         self.diffstartline = len(comments)
         eatempty(message)
         eatempty(comments)
 
         # make sure message isn't empty
         if format and format.startswith("tag") and subject:
             message.insert(0, subject)
 
         self.message = message
         self.comments = comments
         self.user = user
         self.date = date
         self.parent = parent
         # nodeid and branch are for external use by TortoiseHg and others
         self.nodeid = nodeid
         self.branch = branch
         self.haspatch = diffstart > 1
         self.plainmode = (plainmode or
                           '# HG changeset patch' not in self.comments and
                           util.any(c.startswith('Date: ') or
                                    c.startswith('From: ')
                                    for c in self.comments))
 
     def setuser(self, user):
         try:
             inserthgheader(self.comments, '# User ', user)
         except ValueError:
             if self.plainmode:
                 insertplainheader(self.comments, 'From', user)
             else:
                 tmp = ['# HG changeset patch', '# User ' + user]
                 self.comments = tmp + self.comments
         self.user = user
 
     def setdate(self, date):
         try:
             inserthgheader(self.comments, '# Date ', date)
         except ValueError:
             if self.plainmode:
                 insertplainheader(self.comments, 'Date', date)
             else:
                 tmp = ['# HG changeset patch', '# Date ' + date]
                 self.comments = tmp + self.comments
         self.date = date
 
     def setparent(self, parent):
         try:
             inserthgheader(self.comments, '# Parent  ', parent)
         except ValueError:
             if not self.plainmode:
                 tmp = ['# HG changeset patch', '# Parent  ' + parent]
                 self.comments = tmp + self.comments
         self.parent = parent
 
     def setmessage(self, message):
         if self.comments:
             self._delmsg()
         self.message = [message]
         if message:
             if self.plainmode and self.comments and self.comments[-1]:
                 self.comments.append('')
             self.comments.append(message)
 
     def __str__(self):
         s = '\n'.join(self.comments).rstrip()
         if not s:
             return ''
         return s + '\n\n'
 
     def _delmsg(self):
         '''Remove existing message, keeping the rest of the comments fields.
         If comments contains 'subject: ', message will prepend
         the field and a blank line.'''
         if self.message:
             subj = 'subject: ' + self.message[0].lower()
             for i in xrange(len(self.comments)):
                 if subj == self.comments[i].lower():
                     del self.comments[i]
                     self.message = self.message[2:]
                     break
         ci = 0
         for mi in self.message:
             while mi != self.comments[ci]:
                 ci += 1
             del self.comments[ci]
 
 def newcommit(repo, phase, *args, **kwargs):
     """helper dedicated to ensure a commit respect mq.secret setting
 
     It should be used instead of repo.commit inside the mq source for operation
     creating new changeset.
     """
     repo = repo.unfiltered()
     if phase is None:
         if repo.ui.configbool('mq', 'secret', False):
             phase = phases.secret
     if phase is not None:
         backup = repo.ui.backupconfig('phases', 'new-commit')
     try:
         if phase is not None:
             repo.ui.setconfig('phases', 'new-commit', phase, 'mq')
         return repo.commit(*args, **kwargs)
     finally:
         if phase is not None:
             repo.ui.restoreconfig(backup)
 
 class AbortNoCleanup(error.Abort):
     pass
 
 class queue(object):
     def __init__(self, ui, baseui, path, patchdir=None):
         self.basepath = path
         try:
             fh = open(os.path.join(path, 'patches.queue'))
             cur = fh.read().rstrip()
             fh.close()
             if not cur:
                 curpath = os.path.join(path, 'patches')
             else:
                 curpath = os.path.join(path, 'patches-' + cur)
         except IOError:
             curpath = os.path.join(path, 'patches')
         self.path = patchdir or curpath
         self.opener = scmutil.opener(self.path)
         self.ui = ui
         self.baseui = baseui
         self.applieddirty = False
         self.seriesdirty = False
         self.added = []
         self.seriespath = "series"
         self.statuspath = "status"
         self.guardspath = "guards"
         self.activeguards = None
         self.guardsdirty = False
         # Handle mq.git as a bool with extended values
         try:
             gitmode = ui.configbool('mq', 'git', None)
             if gitmode is None:
                 raise error.ConfigError
             self.gitmode = gitmode and 'yes' or 'no'
         except error.ConfigError:
             self.gitmode = ui.config('mq', 'git', 'auto').lower()
         self.plainmode = ui.configbool('mq', 'plain', False)
         self.checkapplied = True
 
     @util.propertycache
     def applied(self):
         def parselines(lines):
             for l in lines:
                 entry = l.split(':', 1)
                 if len(entry) > 1:
                     n, name = entry
                     yield statusentry(bin(n), name)
                 elif l.strip():
                     self.ui.warn(_('malformated mq status line: %s\n') % entry)
                 # else we ignore empty lines
         try:
             lines = self.opener.read(self.statuspath).splitlines()
             return list(parselines(lines))
         except IOError, e:
             if e.errno == errno.ENOENT:
                 return []
             raise
 
     @util.propertycache
     def fullseries(self):
         try:
             return self.opener.read(self.seriespath).splitlines()
         except IOError, e:
             if e.errno == errno.ENOENT:
                 return []
             raise
 
     @util.propertycache
     def series(self):
         self.parseseries()
         return self.series
 
     @util.propertycache
     def seriesguards(self):
         self.parseseries()
         return self.seriesguards
 
     def invalidate(self):
         for a in 'applied fullseries series seriesguards'.split():
             if a in self.__dict__:
                 delattr(self, a)
         self.applieddirty = False
         self.seriesdirty = False
         self.guardsdirty = False
         self.activeguards = None
 
     def diffopts(self, opts={}, patchfn=None):
         diffopts = patchmod.diffopts(self.ui, opts)
         if self.gitmode == 'auto':
             diffopts.upgrade = True
         elif self.gitmode == 'keep':
             pass
         elif self.gitmode in ('yes', 'no'):
             diffopts.git = self.gitmode == 'yes'
         else:
             raise util.Abort(_('mq.git option can be auto/keep/yes/no'
                                ' got %s') % self.gitmode)
         if patchfn:
             diffopts = self.patchopts(diffopts, patchfn)
         return diffopts
 
     def patchopts(self, diffopts, *patches):
         """Return a copy of input diff options with git set to true if
         referenced patch is a git patch and should be preserved as such.
         """
         diffopts = diffopts.copy()
         if not diffopts.git and self.gitmode == 'keep':
             for patchfn in patches:
                 patchf = self.opener(patchfn, 'r')
                 # if the patch was a git patch, refresh it as a git patch
                 for line in patchf:
                     if line.startswith('diff --git'):
                         diffopts.git = True
                         break
                 patchf.close()
         return diffopts
 
     def join(self, *p):
         return os.path.join(self.path, *p)
 
     def findseries(self, patch):
         def matchpatch(l):
             l = l.split('#', 1)[0]
             return l.strip() == patch
         for index, l in enumerate(self.fullseries):
             if matchpatch(l):
                 return index
         return None
 
     guard_re = re.compile(r'\s?#([-+][^-+# \t\r\n\f][^# \t\r\n\f]*)')
 
     def parseseries(self):
         self.series = []
         self.seriesguards = []
         for l in self.fullseries:
             h = l.find('#')
             if h == -1:
                 patch = l
                 comment = ''
             elif h == 0:
                 continue
             else:
                 patch = l[:h]
                 comment = l[h:]
             patch = patch.strip()
             if patch:
                 if patch in self.series:
                     raise util.Abort(_('%s appears more than once in %s') %
                                      (patch, self.join(self.seriespath)))
                 self.series.append(patch)
                 self.seriesguards.append(self.guard_re.findall(comment))
 
     def checkguard(self, guard):
         if not guard:
             return _('guard cannot be an empty string')
         bad_chars = '# \t\r\n\f'
         first = guard[0]
         if first in '-+':
             return (_('guard %r starts with invalid character: %r') %
                       (guard, first))
         for c in bad_chars:
             if c in guard:
                 return _('invalid character in guard %r: %r') % (guard, c)
 
     def setactive(self, guards):
         for guard in guards:
             bad = self.checkguard(guard)
             if bad:
                 raise util.Abort(bad)
         guards = sorted(set(guards))
         self.ui.debug('active guards: %s\n' % ' '.join(guards))
         self.activeguards = guards
         self.guardsdirty = True
 
     def active(self):
         if self.activeguards is None:
             self.activeguards = []
             try:
                 guards = self.opener.read(self.guardspath).split()
             except IOError, err:
                 if err.errno != errno.ENOENT:
                     raise
                 guards = []
             for i, guard in enumerate(guards):
                 bad = self.checkguard(guard)
                 if bad:
                     self.ui.warn('%s:%d: %s\n' %
                                  (self.join(self.guardspath), i + 1, bad))
                 else:
                     self.activeguards.append(guard)
         return self.activeguards
 
     def setguards(self, idx, guards):
         for g in guards:
             if len(g) < 2:
                 raise util.Abort(_('guard %r too short') % g)
             if g[0] not in '-+':
                 raise util.Abort(_('guard %r starts with invalid char') % g)
             bad = self.checkguard(g[1:])
             if bad:
                 raise util.Abort(bad)
         drop = self.guard_re.sub('', self.fullseries[idx])
         self.fullseries[idx] = drop + ''.join([' #' + g for g in guards])
         self.parseseries()
         self.seriesdirty = True
 
     def pushable(self, idx):
         if isinstance(idx, str):
             idx = self.series.index(idx)
         patchguards = self.seriesguards[idx]
         if not patchguards:
             return True, None
         guards = self.active()
         exactneg = [g for g in patchguards if g[0] == '-' and g[1:] in guards]
         if exactneg:
             return False, repr(exactneg[0])
         pos = [g for g in patchguards if g[0] == '+']
         exactpos = [g for g in pos if g[1:] in guards]
         if pos:
             if exactpos:
                 return True, repr(exactpos[0])
             return False, ' '.join(map(repr, pos))
         return True, ''
 
     def explainpushable(self, idx, all_patches=False):
         write = all_patches and self.ui.write or self.ui.warn
         if all_patches or self.ui.verbose:
             if isinstance(idx, str):
                 idx = self.series.index(idx)
             pushable, why = self.pushable(idx)
             if all_patches and pushable:
                 if why is None:
                     write(_('allowing %s - no guards in effect\n') %
                           self.series[idx])
                 else:
                     if not why:
                         write(_('allowing %s - no matching negative guards\n') %
                               self.series[idx])
                     else:
                         write(_('allowing %s - guarded by %s\n') %
                               (self.series[idx], why))
             if not pushable:
                 if why:
                     write(_('skipping %s - guarded by %s\n') %
                           (self.series[idx], why))
                 else:
                     write(_('skipping %s - no matching guards\n') %
                           self.series[idx])
 
     def savedirty(self):
         def writelist(items, path):
             fp = self.opener(path, 'w')
             for i in items:
                 fp.write("%s\n" % i)
             fp.close()
         if self.applieddirty:
             writelist(map(str, self.applied), self.statuspath)
             self.applieddirty = False
         if self.seriesdirty:
             writelist(self.fullseries, self.seriespath)
             self.seriesdirty = False
         if self.guardsdirty:
             writelist(self.activeguards, self.guardspath)
             self.guardsdirty = False
         if self.added:
             qrepo = self.qrepo()
             if qrepo:
                 qrepo[None].add(f for f in self.added if f not in qrepo[None])
             self.added = []
 
     def removeundo(self, repo):
         undo = repo.sjoin('undo')
         if not os.path.exists(undo):
             return
         try:
             os.unlink(undo)
         except OSError, inst:
             self.ui.warn(_('error removing undo: %s\n') % str(inst))
 
     def backup(self, repo, files, copy=False):
         # backup local changes in --force case
         for f in sorted(files):
             absf = repo.wjoin(f)
             if os.path.lexists(absf):
                 self.ui.note(_('saving current version of %s as %s\n') %
                              (f, f + '.orig'))
                 if copy:
                     util.copyfile(absf, absf + '.orig')
                 else:
                     util.rename(absf, absf + '.orig')
 
     def printdiff(self, repo, diffopts, node1, node2=None, files=None,
                   fp=None, changes=None, opts={}):
         stat = opts.get('stat')
         m = scmutil.match(repo[node1], files, opts)
         cmdutil.diffordiffstat(self.ui, repo, diffopts, node1, node2,  m,
                                changes, stat, fp)
 
     def mergeone(self, repo, mergeq, head, patch, rev, diffopts):
         # first try just applying the patch
         (err, n) = self.apply(repo, [patch], update_status=False,
                               strict=True, merge=rev)
 
         if err == 0:
             return (err, n)
 
         if n is None:
             raise util.Abort(_("apply failed for patch %s") % patch)
 
         self.ui.warn(_("patch didn't work out, merging %s\n") % patch)
 
         # apply failed, strip away that rev and merge.
         hg.clean(repo, head)
         strip(self.ui, repo, [n], update=False, backup=False)
 
         ctx = repo[rev]
         ret = hg.merge(repo, rev)
         if ret:
             raise util.Abort(_("update returned %d") % ret)
         n = newcommit(repo, None, ctx.description(), ctx.user(), force=True)
         if n is None:
             raise util.Abort(_("repo commit failed"))
         try:
             ph = patchheader(mergeq.join(patch), self.plainmode)
         except Exception:
             raise util.Abort(_("unable to read %s") % patch)
 
         diffopts = self.patchopts(diffopts, patch)
         patchf = self.opener(patch, "w")
         comments = str(ph)
         if comments:
             patchf.write(comments)
         self.printdiff(repo, diffopts, head, n, fp=patchf)
         patchf.close()
         self.removeundo(repo)
         return (0, n)
 
     def qparents(self, repo, rev=None):
         """return the mq handled parent or p1
 
         In some case where mq get himself in being the parent of a merge the
         appropriate parent may be p2.
         (eg: an in progress merge started with mq disabled)
 
         If no parent are managed by mq, p1 is returned.
         """
         if rev is None:
             (p1, p2) = repo.dirstate.parents()
             if p2 == nullid:
                 return p1
             if not self.applied:
                 return None
             return self.applied[-1].node
         p1, p2 = repo.changelog.parents(rev)
         if p2 != nullid and p2 in [x.node for x in self.applied]:
             return p2
         return p1
 
     def mergepatch(self, repo, mergeq, series, diffopts):
         if not self.applied:
             # each of the patches merged in will have two parents.  This
             # can confuse the qrefresh, qdiff, and strip code because it
             # needs to know which parent is actually in the patch queue.
             # so, we insert a merge marker with only one parent.  This way
             # the first patch in the queue is never a merge patch
             #
             pname = ".hg.patches.merge.marker"
             n = newcommit(repo, None, '[mq]: merge marker', force=True)
             self.removeundo(repo)
             self.applied.append(statusentry(n, pname))
             self.applieddirty = True
 
         head = self.qparents(repo)
 
         for patch in series:
             patch = mergeq.lookup(patch, strict=True)
             if not patch:
                 self.ui.warn(_("patch %s does not exist\n") % patch)
                 return (1, None)
             pushable, reason = self.pushable(patch)
             if not pushable:
                 self.explainpushable(patch, all_patches=True)
                 continue
             info = mergeq.isapplied(patch)
             if not info:
                 self.ui.warn(_("patch %s is not applied\n") % patch)
                 return (1, None)
             rev = info[1]
             err, head = self.mergeone(repo, mergeq, head, patch, rev, diffopts)
             if head:
                 self.applied.append(statusentry(head, patch))
                 self.applieddirty = True
             if err:
                 return (err, head)
         self.savedirty()
         return (0, head)
 
     def patch(self, repo, patchfile):
         '''Apply patchfile  to the working directory.
         patchfile: name of patch file'''
         files = set()
         try:
             fuzz = patchmod.patch(self.ui, repo, patchfile, strip=1,
                                   files=files, eolmode=None)
             return (True, list(files), fuzz)
         except Exception, inst:
             self.ui.note(str(inst) + '\n')
             if not self.ui.verbose:
                 self.ui.warn(_("patch failed, unable to continue (try -v)\n"))
             self.ui.traceback()
             return (False, list(files), False)
 
     def apply(self, repo, series, list=False, update_status=True,
               strict=False, patchdir=None, merge=None, all_files=None,
               tobackup=None, keepchanges=False):
         wlock = lock = tr = None
         try:
             wlock = repo.wlock()
             lock = repo.lock()
             tr = repo.transaction("qpush")
             try:
                 ret = self._apply(repo, series, list, update_status,
                                   strict, patchdir, merge, all_files=all_files,
                                   tobackup=tobackup, keepchanges=keepchanges)
                 tr.close()
                 self.savedirty()
                 return ret
             except AbortNoCleanup:
                 tr.close()
                 self.savedirty()
                 return 2, repo.dirstate.p1()
             except: # re-raises
                 try:
                     tr.abort()
                 finally:
                     repo.invalidate()
                     repo.dirstate.invalidate()
                     self.invalidate()
                 raise
         finally:
             release(tr, lock, wlock)
             self.removeundo(repo)
 
     def _apply(self, repo, series, list=False, update_status=True,
                strict=False, patchdir=None, merge=None, all_files=None,
                tobackup=None, keepchanges=False):
         """returns (error, hash)
 
         error = 1 for unable to read, 2 for patch failed, 3 for patch
         fuzz. tobackup is None or a set of files to backup before they
         are modified by a patch.
         """
         # TODO unify with commands.py
         if not patchdir:
             patchdir = self.path
         err = 0
         n = None
         for patchname in series:
             pushable, reason = self.pushable(patchname)
             if not pushable:
                 self.explainpushable(patchname, all_patches=True)
                 continue
             self.ui.status(_("applying %s\n") % patchname)
             pf = os.path.join(patchdir, patchname)
 
             try:
                 ph = patchheader(self.join(patchname), self.plainmode)
             except IOError:
                 self.ui.warn(_("unable to read %s\n") % patchname)
                 err = 1
                 break
 
             message = ph.message
             if not message:
                 # The commit message should not be translated
                 message = "imported patch %s\n" % patchname
             else:
                 if list:
                     # The commit message should not be translated
                     message.append("\nimported patch %s" % patchname)
                 message = '\n'.join(message)
 
             if ph.haspatch:
                 if tobackup:
                     touched = patchmod.changedfiles(self.ui, repo, pf)
                     touched = set(touched) & tobackup
                     if touched and keepchanges:
                         raise AbortNoCleanup(
                             _("local changes found, refresh first"))
                     self.backup(repo, touched, copy=True)
                     tobackup = tobackup - touched
                 (patcherr, files, fuzz) = self.patch(repo, pf)
                 if all_files is not None:
                     all_files.update(files)
                 patcherr = not patcherr
             else:
                 self.ui.warn(_("patch %s is empty\n") % patchname)
                 patcherr, files, fuzz = 0, [], 0
 
             if merge and files:
                 # Mark as removed/merged and update dirstate parent info
                 removed = []
                 merged = []
                 for f in files:
                     if os.path.lexists(repo.wjoin(f)):
                         merged.append(f)
                     else:
                         removed.append(f)
                 repo.dirstate.beginparentchange()
                 for f in removed:
                     repo.dirstate.remove(f)
                 for f in merged:
                     repo.dirstate.merge(f)
                 p1, p2 = repo.dirstate.parents()
                 repo.setparents(p1, merge)
                 repo.dirstate.endparentchange()
 
             if all_files and '.hgsubstate' in all_files:
                 wctx = repo[None]
                 pctx = repo['.']
                 overwrite = False
                 mergedsubstate = subrepo.submerge(repo, pctx, wctx, wctx,
                     overwrite)
                 files += mergedsubstate.keys()
 
             match = scmutil.matchfiles(repo, files or [])
             oldtip = repo['tip']
             n = newcommit(repo, None, message, ph.user, ph.date, match=match,
                           force=True)
             if repo['tip'] == oldtip:
                 raise util.Abort(_("qpush exactly duplicates child changeset"))
             if n is None:
                 raise util.Abort(_("repository commit failed"))
 
             if update_status:
                 self.applied.append(statusentry(n, patchname))
 
             if patcherr:
                 self.ui.warn(_("patch failed, rejects left in working dir\n"))
                 err = 2
                 break
 
             if fuzz and strict:
                 self.ui.warn(_("fuzz found when applying patch, stopping\n"))
                 err = 3
                 break
         return (err, n)
 
     def _cleanup(self, patches, numrevs, keep=False):
         if not keep:
             r = self.qrepo()
             if r:
                 r[None].forget(patches)
             for p in patches:
                 try:
                     os.unlink(self.join(p))
                 except OSError, inst:
                     if inst.errno != errno.ENOENT:
                         raise
 
         qfinished = []
         if numrevs:
             qfinished = self.applied[:numrevs]
             del self.applied[:numrevs]
             self.applieddirty = True
 
         unknown = []
 
         for (i, p) in sorted([(self.findseries(p), p) for p in patches],
                              reverse=True):
             if i is not None:
                 del self.fullseries[i]
             else:
                 unknown.append(p)
 
         if unknown:
             if numrevs:
                 rev  = dict((entry.name, entry.node) for entry in qfinished)
                 for p in unknown:
                     msg = _('revision %s refers to unknown patches: %s\n')
                     self.ui.warn(msg % (short(rev[p]), p))
             else:
                 msg = _('unknown patches: %s\n')
                 raise util.Abort(''.join(msg % p for p in unknown))
 
         self.parseseries()
         self.seriesdirty = True
         return [entry.node for entry in qfinished]
 
     def _revpatches(self, repo, revs):
         firstrev = repo[self.applied[0].node].rev()
         patches = []
         for i, rev in enumerate(revs):
 
             if rev < firstrev:
                 raise util.Abort(_('revision %d is not managed') % rev)
 
             ctx = repo[rev]
             base = self.applied[i].node
             if ctx.node() != base:
                 msg = _('cannot delete revision %d above applied patches')
                 raise util.Abort(msg % rev)
 
             patch = self.applied[i].name
             for fmt in ('[mq]: %s', 'imported patch %s'):
                 if ctx.description() == fmt % patch:
                     msg = _('patch %s finalized without changeset message\n')
                     repo.ui.status(msg % patch)
                     break
 
             patches.append(patch)
         return patches
 
     def finish(self, repo, revs):
         # Manually trigger phase computation to ensure phasedefaults is
         # executed before we remove the patches.
         repo._phasecache
         patches = self._revpatches(repo, sorted(revs))
         qfinished = self._cleanup(patches, len(patches))
         if qfinished and repo.ui.configbool('mq', 'secret', False):
             # only use this logic when the secret option is added
             oldqbase = repo[qfinished[0]]
             tphase = repo.ui.config('phases', 'new-commit', phases.draft)
             if oldqbase.phase() > tphase and oldqbase.p1().phase() <= tphase:
                 tr = repo.transaction('qfinish')
                 try:
                     phases.advanceboundary(repo, tr, tphase, qfinished)
                     tr.close()
                 finally:
                     tr.release()
 
     def delete(self, repo, patches, opts):
         if not patches and not opts.get('rev'):
             raise util.Abort(_('qdelete requires at least one revision or '
                                'patch name'))
 
         realpatches = []
         for patch in patches:
             patch = self.lookup(patch, strict=True)
             info = self.isapplied(patch)
             if info:
                 raise util.Abort(_("cannot delete applied patch %s") % patch)
             if patch not in self.series:
                 raise util.Abort(_("patch %s not in series file") % patch)
             if patch not in realpatches:
                 realpatches.append(patch)
 
         numrevs = 0
         if opts.get('rev'):
             if not self.applied:
                 raise util.Abort(_('no patches applied'))
             revs = scmutil.revrange(repo, opts.get('rev'))
             revs.sort()
             revpatches = self._revpatches(repo, revs)
             realpatches += revpatches
             numrevs = len(revpatches)
 
         self._cleanup(realpatches, numrevs, opts.get('keep'))
 
     def checktoppatch(self, repo):
         '''check that working directory is at qtip'''
         if self.applied:
             top = self.applied[-1].node
             patch = self.applied[-1].name
             if repo.dirstate.p1() != top:
                 raise util.Abort(_("working directory revision is not qtip"))
             return top, patch
         return None, None
 
     def putsubstate2changes(self, substatestate, changes):
         for files in changes[:3]:
             if '.hgsubstate' in files:
                 return # already listed up
         # not yet listed up
         if substatestate in 'a?':
             changes[1].append('.hgsubstate')
         elif substatestate in 'r':
             changes[2].append('.hgsubstate')
         else: # modified
             changes[0].append('.hgsubstate')
 
     def checklocalchanges(self, repo, force=False, refresh=True):
         excsuffix = ''
         if refresh:
             excsuffix = ', refresh first'
             # plain versions for i18n tool to detect them
             _("local changes found, refresh first")
             _("local changed subrepos found, refresh first")
         return checklocalchanges(repo, force, excsuffix)
 
     _reserved = ('series', 'status', 'guards', '.', '..')
     def checkreservedname(self, name):
         if name in self._reserved:
             raise util.Abort(_('"%s" cannot be used as the name of a patch')
                              % name)
         for prefix in ('.hg', '.mq'):
             if name.startswith(prefix):
                 raise util.Abort(_('patch name cannot begin with "%s"')
                                  % prefix)
         for c in ('#', ':'):
             if c in name:
                 raise util.Abort(_('"%s" cannot be used in the name of a patch')
                                  % c)
 
     def checkpatchname(self, name, force=False):
         self.checkreservedname(name)
         if not force and os.path.exists(self.join(name)):
             if os.path.isdir(self.join(name)):
                 raise util.Abort(_('"%s" already exists as a directory')
                                  % name)
             else:
                 raise util.Abort(_('patch "%s" already exists') % name)
 
     def checkkeepchanges(self, keepchanges, force):
         if force and keepchanges:
             raise util.Abort(_('cannot use both --force and --keep-changes'))
 
     def new(self, repo, patchfn, *pats, **opts):
         """options:
            msg: a string or a no-argument function returning a string
         """
         msg = opts.get('msg')
         edit = opts.get('edit')
         editform = opts.get('editform', 'mq.qnew')
         user = opts.get('user')
         date = opts.get('date')
         if date:
             date = util.parsedate(date)
         diffopts = self.diffopts({'git': opts.get('git')})
         if opts.get('checkname', True):
             self.checkpatchname(patchfn)
         inclsubs = checksubstate(repo)
         if inclsubs:
             substatestate = repo.dirstate['.hgsubstate']
         if opts.get('include') or opts.get('exclude') or pats:
             match = scmutil.match(repo[None], pats, opts)
             # detect missing files in pats
             def badfn(f, msg):
                 if f != '.hgsubstate': # .hgsubstate is auto-created
                     raise util.Abort('%s: %s' % (f, msg))
             match.bad = badfn
             changes = repo.status(match=match)
         else:
             changes = self.checklocalchanges(repo, force=True)
         commitfiles = list(inclsubs)
         for files in changes[:3]:
             commitfiles.extend(files)
         match = scmutil.matchfiles(repo, commitfiles)
         if len(repo[None].parents()) > 1:
             raise util.Abort(_('cannot manage merge changesets'))
         self.checktoppatch(repo)
         insert = self.fullseriesend()
         wlock = repo.wlock()
         try:
             try:
                 # if patch file write fails, abort early
                 p = self.opener(patchfn, "w")
             except IOError, e:
                 raise util.Abort(_('cannot write patch "%s": %s')
                                  % (patchfn, e.strerror))
             try:
                 defaultmsg = "[mq]: %s" % patchfn
                 editor = cmdutil.getcommiteditor(editform=editform)
                 if edit:
                     def finishdesc(desc):
                         if desc.rstrip():
                             return desc
                         else:
                             return defaultmsg
                     # i18n: this message is shown in editor with "HG: " prefix
                     extramsg = _('Leave message empty to use default message.')
                     editor = cmdutil.getcommiteditor(finishdesc=finishdesc,
                                                      extramsg=extramsg,
                                                      editform=editform)
                     commitmsg = msg
                 else:
                     commitmsg = msg or defaultmsg
 
                 n = newcommit(repo, None, commitmsg, user, date, match=match,
                               force=True, editor=editor)
                 if n is None:
                     raise util.Abort(_("repo commit failed"))
                 try:
                     self.fullseries[insert:insert] = [patchfn]
                     self.applied.append(statusentry(n, patchfn))
                     self.parseseries()
                     self.seriesdirty = True
                     self.applieddirty = True
                     nctx = repo[n]
                     ph = patchheader(self.join(patchfn), self.plainmode)
                     if user:
                         ph.setuser(user)
                     if date:
                         ph.setdate('%s %s' % date)
                     ph.setparent(hex(nctx.p1().node()))
                     msg = nctx.description().strip()
                     if msg == defaultmsg.strip():
                         msg = ''
                     ph.setmessage(msg)
                     p.write(str(ph))
                     if commitfiles:
                         parent = self.qparents(repo, n)
                         if inclsubs:
                             self.putsubstate2changes(substatestate, changes)
                         chunks = patchmod.diff(repo, node1=parent, node2=n,
                                                changes=changes, opts=diffopts)
                         for chunk in chunks:
                             p.write(chunk)
                     p.close()
                     r = self.qrepo()
                     if r:
                         r[None].add([patchfn])
                 except: # re-raises
                     repo.rollback()
                     raise
             except Exception:
                 patchpath = self.join(patchfn)
                 try:
                     os.unlink(patchpath)
                 except OSError:
                     self.ui.warn(_('error unlinking %s\n') % patchpath)
                 raise
             self.removeundo(repo)
         finally:
             release(wlock)
 
     def isapplied(self, patch):
         """returns (index, rev, patch)"""
         for i, a in enumerate(self.applied):
             if a.name == patch:
                 return (i, a.node, a.name)
         return None
 
     # if the exact patch name does not exist, we try a few
     # variations.  If strict is passed, we try only #1
     #
     # 1) a number (as string) to indicate an offset in the series file
     # 2) a unique substring of the patch name was given
     # 3) patchname[-+]num to indicate an offset in the series file
     def lookup(self, patch, strict=False):
         def partialname(s):
             if s in self.series:
                 return s
             matches = [x for x in self.series if s in x]
             if len(matches) > 1:
                 self.ui.warn(_('patch name "%s" is ambiguous:\n') % s)
                 for m in matches:
                     self.ui.warn('  %s\n' % m)
                 return None
             if matches:
                 return matches[0]
             if self.series and self.applied:
                 if s == 'qtip':
                     return self.series[self.seriesend(True) - 1]
                 if s == 'qbase':
                     return self.series[0]
             return None
 
         if patch in self.series:
             return patch
 
         if not os.path.isfile(self.join(patch)):
             try:
                 sno = int(patch)
             except (ValueError, OverflowError):
                 pass
             else:
                 if -len(self.series) <= sno < len(self.series):
                     return self.series[sno]
 
             if not strict:
                 res = partialname(patch)
                 if res:
                     return res
                 minus = patch.rfind('-')
                 if minus >= 0:
                     res = partialname(patch[:minus])
                     if res:
                         i = self.series.index(res)
                         try:
                             off = int(patch[minus + 1:] or 1)
                         except (ValueError, OverflowError):
                             pass
                         else:
                             if i - off >= 0:
                                 return self.series[i - off]
                 plus = patch.rfind('+')
                 if plus >= 0:
                     res = partialname(patch[:plus])
                     if res:
                         i = self.series.index(res)
                         try:
                             off = int(patch[plus + 1:] or 1)
                         except (ValueError, OverflowError):
                             pass
                         else:
                             if i + off < len(self.series):
                                 return self.series[i + off]
         raise util.Abort(_("patch %s not in series") % patch)
 
     def push(self, repo, patch=None, force=False, list=False, mergeq=None,
              all=False, move=False, exact=False, nobackup=False,
              keepchanges=False):
         self.checkkeepchanges(keepchanges, force)
         diffopts = self.diffopts()
         wlock = repo.wlock()
         try:
             heads = []
             for hs in repo.branchmap().itervalues():
                 heads.extend(hs)
             if not heads:
                 heads = [nullid]
             if repo.dirstate.p1() not in heads and not exact:
                 self.ui.status(_("(working directory not at a head)\n"))
 
             if not self.series:
                 self.ui.warn(_('no patches in series\n'))
                 return 0
 
             # Suppose our series file is: A B C and the current 'top'
             # patch is B. qpush C should be performed (moving forward)
             # qpush B is a NOP (no change) qpush A is an error (can't
             # go backwards with qpush)
             if patch:
                 patch = self.lookup(patch)
                 info = self.isapplied(patch)
                 if info and info[0] >= len(self.applied) - 1:
                     self.ui.warn(
                         _('qpush: %s is already at the top\n') % patch)
                     return 0
 
                 pushable, reason = self.pushable(patch)
                 if pushable:
                     if self.series.index(patch) < self.seriesend():
                         raise util.Abort(
                             _("cannot push to a previous patch: %s") % patch)
                 else:
                     if reason:
                         reason = _('guarded by %s') % reason
                     else:
                         reason = _('no matching guards')
                     self.ui.warn(_("cannot push '%s' - %s\n") % (patch, reason))
                     return 1
             elif all:
                 patch = self.series[-1]
                 if self.isapplied(patch):
                     self.ui.warn(_('all patches are currently applied\n'))
                     return 0
 
             # Following the above example, starting at 'top' of B:
             # qpush should be performed (pushes C), but a subsequent
             # qpush without an argument is an error (nothing to
             # apply). This allows a loop of "...while hg qpush..." to
             # work as it detects an error when done
             start = self.seriesend()
             if start == len(self.series):
                 self.ui.warn(_('patch series already fully applied\n'))
                 return 1
             if not force and not keepchanges:
                 self.checklocalchanges(repo, refresh=self.applied)
 
             if exact:
                 if keepchanges:
                     raise util.Abort(
                         _("cannot use --exact and --keep-changes together"))
                 if move:
                     raise util.Abort(_('cannot use --exact and --move '
                                        'together'))
                 if self.applied:
                     raise util.Abort(_('cannot push --exact with applied '
                                        'patches'))
                 root = self.series[start]
                 target = patchheader(self.join(root), self.plainmode).parent
                 if not target:
                     raise util.Abort(
                         _("%s does not have a parent recorded") % root)
                 if not repo[target] == repo['.']:
                     hg.update(repo, target)
 
             if move:
                 if not patch:
                     raise util.Abort(_("please specify the patch to move"))
                 for fullstart, rpn in enumerate(self.fullseries):
                     # strip markers for patch guards
                     if self.guard_re.split(rpn, 1)[0] == self.series[start]:
                         break
                 for i, rpn in enumerate(self.fullseries[fullstart:]):
                     # strip markers for patch guards
                     if self.guard_re.split(rpn, 1)[0] == patch:
                         break
                 index = fullstart + i
                 assert index < len(self.fullseries)
                 fullpatch = self.fullseries[index]
                 del self.fullseries[index]
                 self.fullseries.insert(fullstart, fullpatch)
                 self.parseseries()
                 self.seriesdirty = True
 
             self.applieddirty = True
             if start > 0:
                 self.checktoppatch(repo)
             if not patch:
                 patch = self.series[start]
                 end = start + 1
             else:
                 end = self.series.index(patch, start) + 1
 
             tobackup = set()
             if (not nobackup and force) or keepchanges:
                 status = self.checklocalchanges(repo, force=True)
                 if keepchanges:
                     tobackup.update(status.modified + status.added +
                                     status.removed + status.deleted)
                 else:
                     tobackup.update(status.modified + status.added)
 
             s = self.series[start:end]
             all_files = set()
             try:
                 if mergeq:
                     ret = self.mergepatch(repo, mergeq, s, diffopts)
                 else:
                     ret = self.apply(repo, s, list, all_files=all_files,
                                      tobackup=tobackup, keepchanges=keepchanges)
             except: # re-raises
                 self.ui.warn(_('cleaning up working directory...'))
                 node = repo.dirstate.p1()
                 hg.revert(repo, node, None)
                 # only remove unknown files that we know we touched or
                 # created while patching
                 for f in all_files:
                     if f not in repo.dirstate:
                         util.unlinkpath(repo.wjoin(f), ignoremissing=True)
                 self.ui.warn(_('done\n'))
                 raise
 
             if not self.applied:
                 return ret[0]
             top = self.applied[-1].name
             if ret[0] and ret[0] > 1:
                 msg = _("errors during apply, please fix and refresh %s\n")
                 self.ui.write(msg % top)
             else:
                 self.ui.write(_("now at: %s\n") % top)
             return ret[0]
 
         finally:
             wlock.release()
 
     def pop(self, repo, patch=None, force=False, update=True, all=False,
             nobackup=False, keepchanges=False):
         self.checkkeepchanges(keepchanges, force)
         wlock = repo.wlock()
         try:
             if patch:
                 # index, rev, patch
                 info = self.isapplied(patch)
                 if not info:
                     patch = self.lookup(patch)
                 info = self.isapplied(patch)
                 if not info:
                     raise util.Abort(_("patch %s is not applied") % patch)
 
             if not self.applied:
                 # Allow qpop -a to work repeatedly,
                 # but not qpop without an argument
                 self.ui.warn(_("no patches applied\n"))
                 return not all
 
             if all:
                 start = 0
             elif patch:
                 start = info[0] + 1
             else:
                 start = len(self.applied) - 1
 
             if start >= len(self.applied):
                 self.ui.warn(_("qpop: %s is already at the top\n") % patch)
                 return
 
             if not update:
                 parents = repo.dirstate.parents()
                 rr = [x.node for x in self.applied]
                 for p in parents:
                     if p in rr:
                         self.ui.warn(_("qpop: forcing dirstate update\n"))
                         update = True
             else:
                 parents = [p.node() for p in repo[None].parents()]
                 needupdate = False
                 for entry in self.applied[start:]:
                     if entry.node in parents:
                         needupdate = True
                         break
                 update = needupdate
 
             tobackup = set()
             if update:
                 s = self.checklocalchanges(repo, force=force or keepchanges)
                 if force:
                     if not nobackup:
                         tobackup.update(s.modified + s.added)
                 elif keepchanges:
                     tobackup.update(s.modified + s.added +
                                     s.removed + s.deleted)
 
             self.applieddirty = True
             end = len(self.applied)
             rev = self.applied[start].node
 
             try:
                 heads = repo.changelog.heads(rev)
             except error.LookupError:
                 node = short(rev)
                 raise util.Abort(_('trying to pop unknown node %s') % node)
 
             if heads != [self.applied[-1].node]:
                 raise util.Abort(_("popping would remove a revision not "
                                    "managed by this patch queue"))
             if not repo[self.applied[-1].node].mutable():
                 raise util.Abort(
                     _("popping would remove an immutable revision"),
                     hint=_('see "hg help phases" for details'))
 
             # we know there are no local changes, so we can make a simplified
             # form of hg.update.
             if update:
                 qp = self.qparents(repo, rev)
                 ctx = repo[qp]
                 m, a, r, d = repo.status(qp, '.')[:4]
                 if d:
                     raise util.Abort(_("deletions found between repo revs"))
 
                 tobackup = set(a + m + r) & tobackup
                 if keepchanges and tobackup:
                     raise util.Abort(_("local changes found, refresh first"))
                 self.backup(repo, tobackup)
                 repo.dirstate.beginparentchange()
                 for f in a:
                     util.unlinkpath(repo.wjoin(f), ignoremissing=True)
                     repo.dirstate.drop(f)
                 for f in m + r:
                     fctx = ctx[f]
                     repo.wwrite(f, fctx.data(), fctx.flags())
                     repo.dirstate.normal(f)
                 repo.setparents(qp, nullid)
                 repo.dirstate.endparentchange()
             for patch in reversed(self.applied[start:end]):
                 self.ui.status(_("popping %s\n") % patch.name)
             del self.applied[start:end]
             strip(self.ui, repo, [rev], update=False, backup=False)
             for s, state in repo['.'].substate.items():
                 repo['.'].sub(s).get(state)
             if self.applied:
                 self.ui.write(_("now at: %s\n") % self.applied[-1].name)
             else:
                 self.ui.write(_("patch queue now empty\n"))
         finally:
             wlock.release()
 
     def diff(self, repo, pats, opts):
         top, patch = self.checktoppatch(repo)
         if not top:
             self.ui.write(_("no patches applied\n"))
             return
         qp = self.qparents(repo, top)
         if opts.get('reverse'):
             node1, node2 = None, qp
         else:
             node1, node2 = qp, None
         diffopts = self.diffopts(opts, patch)
         self.printdiff(repo, diffopts, node1, node2, files=pats, opts=opts)
 
     def refresh(self, repo, pats=None, **opts):
         if not self.applied:
             self.ui.write(_("no patches applied\n"))
             return 1
         msg = opts.get('msg', '').rstrip()
         edit = opts.get('edit')
         editform = opts.get('editform', 'mq.qrefresh')
         newuser = opts.get('user')
         newdate = opts.get('date')
         if newdate:
             newdate = '%d %d' % util.parsedate(newdate)
         wlock = repo.wlock()
 
         try:
             self.checktoppatch(repo)
             (top, patchfn) = (self.applied[-1].node, self.applied[-1].name)
             if repo.changelog.heads(top) != [top]:
                 raise util.Abort(_("cannot refresh a revision with children"))
             if not repo[top].mutable():
                 raise util.Abort(_("cannot refresh immutable revision"),
                                  hint=_('see "hg help phases" for details'))
 
             cparents = repo.changelog.parents(top)
             patchparent = self.qparents(repo, top)
 
             inclsubs = checksubstate(repo, hex(patchparent))
             if inclsubs:
                 substatestate = repo.dirstate['.hgsubstate']
 
             ph = patchheader(self.join(patchfn), self.plainmode)
             diffopts = self.diffopts({'git': opts.get('git')}, patchfn)
             if newuser:
                 ph.setuser(newuser)
             if newdate:
                 ph.setdate(newdate)
             ph.setparent(hex(patchparent))
 
             # only commit new patch when write is complete
             patchf = self.opener(patchfn, 'w', atomictemp=True)
 
             # update the dirstate in place, strip off the qtip commit
             # and then commit.
             #
             # this should really read:
             #   mm, dd, aa = repo.status(top, patchparent)[:3]
             # but we do it backwards to take advantage of manifest/changelog
             # caching against the next repo.status call
             mm, aa, dd = repo.status(patchparent, top)[:3]
             changes = repo.changelog.read(top)
             man = repo.manifest.read(changes[0])
             aaa = aa[:]
             matchfn = scmutil.match(repo[None], pats, opts)
             # in short mode, we only diff the files included in the
             # patch already plus specified files
             if opts.get('short'):
                 # if amending a patch, we start with existing
                 # files plus specified files - unfiltered
                 match = scmutil.matchfiles(repo, mm + aa + dd + matchfn.files())
                 # filter with include/exclude options
                 matchfn = scmutil.match(repo[None], opts=opts)
             else:
                 match = scmutil.matchall(repo)
             m, a, r, d = repo.status(match=match)[:4]
             mm = set(mm)
             aa = set(aa)
             dd = set(dd)
 
             # we might end up with files that were added between
             # qtip and the dirstate parent, but then changed in the
             # local dirstate. in this case, we want them to only
             # show up in the added section
             for x in m:
                 if x not in aa:
                     mm.add(x)
             # we might end up with files added by the local dirstate that
             # were deleted by the patch.  In this case, they should only
             # show up in the changed section.
             for x in a:
                 if x in dd:
                     dd.remove(x)
                     mm.add(x)
                 else:
                     aa.add(x)
             # make sure any files deleted in the local dirstate
             # are not in the add or change column of the patch
             forget = []
             for x in d + r:
                 if x in aa:
                     aa.remove(x)
                     forget.append(x)
                     continue
                 else:
                     mm.discard(x)
                 dd.add(x)
 
             m = list(mm)
             r = list(dd)
             a = list(aa)
 
             # create 'match' that includes the files to be recommitted.
             # apply matchfn via repo.status to ensure correct case handling.
             cm, ca, cr, cd = repo.status(patchparent, match=matchfn)[:4]
             allmatches = set(cm + ca + cr + cd)
             refreshchanges = [x.intersection(allmatches) for x in (mm, aa, dd)]
 
             files = set(inclsubs)
             for x in refreshchanges:
                 files.update(x)
             match = scmutil.matchfiles(repo, files)
 
             bmlist = repo[top].bookmarks()
 
             try:
                 repo.dirstate.beginparentchange()
                 if diffopts.git or diffopts.upgrade:
                     copies = {}
                     for dst in a:
                         src = repo.dirstate.copied(dst)
                         # during qfold, the source file for copies may
                         # be removed. Treat this as a simple add.
                         if src is not None and src in repo.dirstate:
                             copies.setdefault(src, []).append(dst)
                         repo.dirstate.add(dst)
                     # remember the copies between patchparent and qtip
                     for dst in aaa:
                         f = repo.file(dst)
                         src = f.renamed(man[dst])
                         if src:
                             copies.setdefault(src[0], []).extend(
                                 copies.get(dst, []))
                             if dst in a:
                                 copies[src[0]].append(dst)
                         # we can't copy a file created by the patch itself
                         if dst in copies:
                             del copies[dst]
                     for src, dsts in copies.iteritems():
                         for dst in dsts:
                             repo.dirstate.copy(src, dst)
                 else:
                     for dst in a:
                         repo.dirstate.add(dst)
                     # Drop useless copy information
                     for f in list(repo.dirstate.copies()):
                         repo.dirstate.copy(None, f)
                 for f in r:
                     repo.dirstate.remove(f)
                 # if the patch excludes a modified file, mark that
                 # file with mtime=0 so status can see it.
                 mm = []
                 for i in xrange(len(m) - 1, -1, -1):
                     if not matchfn(m[i]):
                         mm.append(m[i])
                         del m[i]
                 for f in m:
                     repo.dirstate.normal(f)
                 for f in mm:
                     repo.dirstate.normallookup(f)
                 for f in forget:
                     repo.dirstate.drop(f)
 
                 user = ph.user or changes[1]
 
                 oldphase = repo[top].phase()
 
                 # assumes strip can roll itself back if interrupted
                 repo.setparents(*cparents)
                 repo.dirstate.endparentchange()
                 self.applied.pop()
                 self.applieddirty = True
                 strip(self.ui, repo, [top], update=False, backup=False)
             except: # re-raises
                 repo.dirstate.invalidate()
                 raise
 
             try:
                 # might be nice to attempt to roll back strip after this
 
                 defaultmsg = "[mq]: %s" % patchfn
                 editor = cmdutil.getcommiteditor(editform=editform)
                 if edit:
                     def finishdesc(desc):
                         if desc.rstrip():
                             ph.setmessage(desc)
                             return desc
                         return defaultmsg
                     # i18n: this message is shown in editor with "HG: " prefix
                     extramsg = _('Leave message empty to use default message.')
                     editor = cmdutil.getcommiteditor(finishdesc=finishdesc,
                                                      extramsg=extramsg,
                                                      editform=editform)
                     message = msg or "\n".join(ph.message)
                 elif not msg:
                     if not ph.message:
                         message = defaultmsg
                     else:
                         message = "\n".join(ph.message)
                 else:
                     message = msg
                     ph.setmessage(msg)
 
                 # Ensure we create a new changeset in the same phase than
                 # the old one.
                 n = newcommit(repo, oldphase, message, user, ph.date,
                               match=match, force=True, editor=editor)
                 # only write patch after a successful commit
                 c = [list(x) for x in refreshchanges]
                 if inclsubs:
                     self.putsubstate2changes(substatestate, c)
                 chunks = patchmod.diff(repo, patchparent,
                                        changes=c, opts=diffopts)
                 comments = str(ph)
                 if comments:
                     patchf.write(comments)
                 for chunk in chunks:
                     patchf.write(chunk)
                 patchf.close()
 
                 marks = repo._bookmarks
                 for bm in bmlist:
                     marks[bm] = n
                 marks.write()
 
                 self.applied.append(statusentry(n, patchfn))
             except: # re-raises
                 ctx = repo[cparents[0]]
                 repo.dirstate.rebuild(ctx.node(), ctx.manifest())
                 self.savedirty()
                 self.ui.warn(_('refresh interrupted while patch was popped! '
                                '(revert --all, qpush to recover)\n'))
                 raise
         finally:
             wlock.release()
             self.removeundo(repo)
 
     def init(self, repo, create=False):
         if not create and os.path.isdir(self.path):
             raise util.Abort(_("patch queue directory already exists"))
         try:
             os.mkdir(self.path)
         except OSError, inst:
             if inst.errno != errno.EEXIST or not create:
                 raise
         if create:
             return self.qrepo(create=True)
 
     def unapplied(self, repo, patch=None):
         if patch and patch not in self.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         if not patch:
             start = self.seriesend()
         else:
             start = self.series.index(patch) + 1
         unapplied = []
         for i in xrange(start, len(self.series)):
             pushable, reason = self.pushable(i)
             if pushable:
                 unapplied.append((i, self.series[i]))
             self.explainpushable(i)
         return unapplied
 
     def qseries(self, repo, missing=None, start=0, length=None, status=None,
                 summary=False):
         def displayname(pfx, patchname, state):
             if pfx:
                 self.ui.write(pfx)
             if summary:
                 ph = patchheader(self.join(patchname), self.plainmode)
                 msg = ph.message and ph.message[0] or ''
                 if self.ui.formatted():
                     width = self.ui.termwidth() - len(pfx) - len(patchname) - 2
                     if width > 0:
                         msg = util.ellipsis(msg, width)
                     else:
                         msg = ''
                 self.ui.write(patchname, label='qseries.' + state)
                 self.ui.write(': ')
                 self.ui.write(msg, label='qseries.message.' + state)
             else:
                 self.ui.write(patchname, label='qseries.' + state)
             self.ui.write('\n')
 
         applied = set([p.name for p in self.applied])
         if length is None:
             length = len(self.series) - start
         if not missing:
             if self.ui.verbose:
                 idxwidth = len(str(start + length - 1))
             for i in xrange(start, start + length):
                 patch = self.series[i]
                 if patch in applied:
                     char, state = 'A', 'applied'
                 elif self.pushable(i)[0]:
                     char, state = 'U', 'unapplied'
                 else:
                     char, state = 'G', 'guarded'
                 pfx = ''
                 if self.ui.verbose:
                     pfx = '%*d %s ' % (idxwidth, i, char)
                 elif status and status != char:
                     continue
                 displayname(pfx, patch, state)
         else:
             msng_list = []
             for root, dirs, files in os.walk(self.path):
                 d = root[len(self.path) + 1:]
                 for f in files:
                     fl = os.path.join(d, f)
                     if (fl not in self.series and
                         fl not in (self.statuspath, self.seriespath,
                                    self.guardspath)
                         and not fl.startswith('.')):
                         msng_list.append(fl)
             for x in sorted(msng_list):
                 pfx = self.ui.verbose and ('D ') or ''
                 displayname(pfx, x, 'missing')
 
     def issaveline(self, l):
         if l.name == '.hg.patches.save.line':
             return True
 
     def qrepo(self, create=False):
         ui = self.baseui.copy()
         if create or os.path.isdir(self.join(".hg")):
             return hg.repository(ui, path=self.path, create=create)
 
     def restore(self, repo, rev, delete=None, qupdate=None):
         desc = repo[rev].description().strip()
         lines = desc.splitlines()
         i = 0
         datastart = None
         series = []
         applied = []
         qpp = None
         for i, line in enumerate(lines):
             if line == 'Patch Data:':
                 datastart = i + 1
             elif line.startswith('Dirstate:'):
                 l = line.rstrip()
                 l = l[10:].split(' ')
                 qpp = [bin(x) for x in l]
             elif datastart is not None:
                 l = line.rstrip()
                 n, name = l.split(':', 1)
                 if n:
                     applied.append(statusentry(bin(n), name))
                 else:
                     series.append(l)
         if datastart is None:
             self.ui.warn(_("no saved patch data found\n"))
             return 1
         self.ui.warn(_("restoring status: %s\n") % lines[0])
         self.fullseries = series
         self.applied = applied
         self.parseseries()
         self.seriesdirty = True
         self.applieddirty = True
         heads = repo.changelog.heads()
         if delete:
             if rev not in heads:
                 self.ui.warn(_("save entry has children, leaving it alone\n"))
             else:
                 self.ui.warn(_("removing save entry %s\n") % short(rev))
                 pp = repo.dirstate.parents()
                 if rev in pp:
                     update = True
                 else:
                     update = False
                 strip(self.ui, repo, [rev], update=update, backup=False)
         if qpp:
             self.ui.warn(_("saved queue repository parents: %s %s\n") %
                          (short(qpp[0]), short(qpp[1])))
             if qupdate:
                 self.ui.status(_("updating queue directory\n"))
                 r = self.qrepo()
                 if not r:
                     self.ui.warn(_("unable to load queue repository\n"))
                     return 1
                 hg.clean(r, qpp[0])
 
     def save(self, repo, msg=None):
         if not self.applied:
             self.ui.warn(_("save: no patches applied, exiting\n"))
             return 1
         if self.issaveline(self.applied[-1]):
             self.ui.warn(_("status is already saved\n"))
             return 1
 
         if not msg:
             msg = _("hg patches saved state")
         else:
             msg = "hg patches: " + msg.rstrip('\r\n')
         r = self.qrepo()
         if r:
             pp = r.dirstate.parents()
             msg += "\nDirstate: %s %s" % (hex(pp[0]), hex(pp[1]))
         msg += "\n\nPatch Data:\n"
         msg += ''.join('%s\n' % x for x in self.applied)
         msg += ''.join(':%s\n' % x for x in self.fullseries)
         n = repo.commit(msg, force=True)
         if not n:
             self.ui.warn(_("repo commit failed\n"))
             return 1
         self.applied.append(statusentry(n, '.hg.patches.save.line'))
         self.applieddirty = True
         self.removeundo(repo)
 
     def fullseriesend(self):
         if self.applied:
             p = self.applied[-1].name
             end = self.findseries(p)
             if end is None:
                 return len(self.fullseries)
             return end + 1
         return 0
 
     def seriesend(self, all_patches=False):
         """If all_patches is False, return the index of the next pushable patch
         in the series, or the series length. If all_patches is True, return the
         index of the first patch past the last applied one.
         """
         end = 0
         def nextpatch(start):
             if all_patches or start >= len(self.series):
                 return start
             for i in xrange(start, len(self.series)):
                 p, reason = self.pushable(i)
                 if p:
                     return i
                 self.explainpushable(i)
             return len(self.series)
         if self.applied:
             p = self.applied[-1].name
             try:
                 end = self.series.index(p)
             except ValueError:
                 return 0
             return nextpatch(end + 1)
         return nextpatch(end)
 
     def appliedname(self, index):
         pname = self.applied[index].name
         if not self.ui.verbose:
             p = pname
         else:
             p = str(self.series.index(pname)) + " " + pname
         return p
 
     def qimport(self, repo, files, patchname=None, rev=None, existing=None,
                 force=None, git=False):
         def checkseries(patchname):
             if patchname in self.series:
                 raise util.Abort(_('patch %s is already in the series file')
                                  % patchname)
 
         if rev:
             if files:
                 raise util.Abort(_('option "-r" not valid when importing '
                                    'files'))
             rev = scmutil.revrange(repo, rev)
             rev.sort(reverse=True)
         elif not files:
             raise util.Abort(_('no files or revisions specified'))
         if (len(files) > 1 or len(rev) > 1) and patchname:
             raise util.Abort(_('option "-n" not valid when importing multiple '
                                'patches'))
         imported = []
         if rev:
             # If mq patches are applied, we can only import revisions
             # that form a linear path to qbase.
             # Otherwise, they should form a linear path to a head.
             heads = repo.changelog.heads(repo.changelog.node(rev.first()))
             if len(heads) > 1:
                 raise util.Abort(_('revision %d is the root of more than one '
                                    'branch') % rev.last())
             if self.applied:
                 base = repo.changelog.node(rev.first())
                 if base in [n.node for n in self.applied]:
                     raise util.Abort(_('revision %d is already managed')
                                      % rev.first())
                 if heads != [self.applied[-1].node]:
                     raise util.Abort(_('revision %d is not the parent of '
                                        'the queue') % rev.first())
                 base = repo.changelog.rev(self.applied[0].node)
                 lastparent = repo.changelog.parentrevs(base)[0]
             else:
                 if heads != [repo.changelog.node(rev.first())]:
                     raise util.Abort(_('revision %d has unmanaged children')
                                      % rev.first())
                 lastparent = None
 
             diffopts = self.diffopts({'git': git})
             tr = repo.transaction('qimport')
             try:
                 for r in rev:
                     if not repo[r].mutable():
                         raise util.Abort(_('revision %d is not mutable') % r,
                                          hint=_('see "hg help phases" '
                                                 'for details'))
                     p1, p2 = repo.changelog.parentrevs(r)
                     n = repo.changelog.node(r)
                     if p2 != nullrev:
                         raise util.Abort(_('cannot import merge revision %d')
                                          % r)
                     if lastparent and lastparent != r:
                         raise util.Abort(_('revision %d is not the parent of '
                                            '%d')
                                          % (r, lastparent))
                     lastparent = p1
 
                     if not patchname:
                         patchname = normname('%d.diff' % r)
                     checkseries(patchname)
                     self.checkpatchname(patchname, force)
                     self.fullseries.insert(0, patchname)
 
                     patchf = self.opener(patchname, "w")
                     cmdutil.export(repo, [n], fp=patchf, opts=diffopts)
                     patchf.close()
 
                     se = statusentry(n, patchname)
                     self.applied.insert(0, se)
 
                     self.added.append(patchname)
                     imported.append(patchname)
                     patchname = None
                     if rev and repo.ui.configbool('mq', 'secret', False):
                         # if we added anything with --rev, move the secret root
                         phases.retractboundary(repo, tr, phases.secret, [n])
                     self.parseseries()
                     self.applieddirty = True
                     self.seriesdirty = True
                 tr.close()
             finally:
                 tr.release()
 
         for i, filename in enumerate(files):
             if existing:
                 if filename == '-':
                     raise util.Abort(_('-e is incompatible with import from -'))
                 filename = normname(filename)
                 self.checkreservedname(filename)
                 if util.url(filename).islocal():
                     originpath = self.join(filename)
                     if not os.path.isfile(originpath):
                         raise util.Abort(
                             _("patch %s does not exist") % filename)
 
                 if patchname:
                     self.checkpatchname(patchname, force)
 
                     self.ui.write(_('renaming %s to %s\n')
                                         % (filename, patchname))
                     util.rename(originpath, self.join(patchname))
                 else:
                     patchname = filename
 
             else:
                 if filename == '-' and not patchname:
                     raise util.Abort(_('need --name to import a patch from -'))
                 elif not patchname:
                     patchname = normname(os.path.basename(filename.rstrip('/')))
                 self.checkpatchname(patchname, force)
                 try:
                     if filename == '-':
                         text = self.ui.fin.read()
                     else:
                         fp = hg.openpath(self.ui, filename)
                         text = fp.read()
                         fp.close()
                 except (OSError, IOError):
                     raise util.Abort(_("unable to read file %s") % filename)
                 patchf = self.opener(patchname, "w")
                 patchf.write(text)
                 patchf.close()
             if not force:
                 checkseries(patchname)
             if patchname not in self.series:
                 index = self.fullseriesend() + i
                 self.fullseries[index:index] = [patchname]
             self.parseseries()
             self.seriesdirty = True
             self.ui.warn(_("adding %s to series file\n") % patchname)
             self.added.append(patchname)
             imported.append(patchname)
             patchname = None
 
         self.removeundo(repo)
         return imported
 
 def fixkeepchangesopts(ui, opts):
     if (not ui.configbool('mq', 'keepchanges') or opts.get('force')
         or opts.get('exact')):
         return opts
     opts = dict(opts)
     opts['keep_changes'] = True
     return opts
 
 @command("qdelete|qremove|qrm",
          [('k', 'keep', None, _('keep patch file')),
           ('r', 'rev', [],
            _('stop managing a revision (DEPRECATED)'), _('REV'))],
          _('hg qdelete [-k] [PATCH]...'))
 def delete(ui, repo, *patches, **opts):
     """remove patches from queue
 
     The patches must not be applied, and at least one patch is required. Exact
     patch identifiers must be given. With -k/--keep, the patch files are
     preserved in the patch directory.
 
     To stop managing a patch and move it into permanent history,
     use the :hg:`qfinish` command."""
     q = repo.mq
     q.delete(repo, patches, opts)
     q.savedirty()
     return 0
 
 @command("qapplied",
          [('1', 'last', None, _('show only the preceding applied patch'))
           ] + seriesopts,
          _('hg qapplied [-1] [-s] [PATCH]'))
 def applied(ui, repo, patch=None, **opts):
     """print the patches already applied
 
     Returns 0 on success."""
 
     q = repo.mq
 
     if patch:
         if patch not in q.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         end = q.series.index(patch) + 1
     else:
         end = q.seriesend(True)
 
     if opts.get('last') and not end:
         ui.write(_("no patches applied\n"))
         return 1
     elif opts.get('last') and end == 1:
         ui.write(_("only one patch applied\n"))
         return 1
     elif opts.get('last'):
         start = end - 2
         end = 1
     else:
         start = 0
 
     q.qseries(repo, length=end, start=start, status='A',
               summary=opts.get('summary'))
 
 
 @command("qunapplied",
          [('1', 'first', None, _('show only the first patch'))] + seriesopts,
          _('hg qunapplied [-1] [-s] [PATCH]'))
 def unapplied(ui, repo, patch=None, **opts):
     """print the patches not yet applied
 
     Returns 0 on success."""
 
     q = repo.mq
     if patch:
         if patch not in q.series:
             raise util.Abort(_("patch %s is not in series file") % patch)
         start = q.series.index(patch) + 1
     else:
         start = q.seriesend(True)
 
     if start == len(q.series) and opts.get('first'):
         ui.write(_("all patches applied\n"))
         return 1
 
     length = opts.get('first') and 1 or None
     q.qseries(repo, start=start, length=length, status='U',
               summary=opts.get('summary'))
 
 @command("qimport",
          [('e', 'existing', None, _('import file in patch directory')),
           ('n', 'name', '',
            _('name of patch file'), _('NAME')),
           ('f', 'force', None, _('overwrite existing files')),
           ('r', 'rev', [],
            _('place existing revisions under mq control'), _('REV')),
           ('g', 'git', None, _('use git extended diff format')),
           ('P', 'push', None, _('qpush after importing'))],
          _('hg qimport [-e] [-n NAME] [-f] [-g] [-P] [-r REV]... [FILE]...'))
 def qimport(ui, repo, *filename, **opts):
     """import a patch or existing changeset
 
     The patch is inserted into the series after the last applied
     patch. If no patches have been applied, qimport prepends the patch
     to the series.
 
     The patch will have the same name as its source file unless you
     give it a new one with -n/--name.
 
     You can register an existing patch inside the patch directory with
     the -e/--existing flag.
 
     With -f/--force, an existing patch of the same name will be
     overwritten.
 
     An existing changeset may be placed under mq control with -r/--rev
     (e.g. qimport --rev . -n patch will place the current revision
     under mq control). With -g/--git, patches imported with --rev will
     use the git diff format. See the diffs help topic for information
     on why this is important for preserving rename/copy information
     and permission changes. Use :hg:`qfinish` to remove changesets
     from mq control.
 
     To import a patch from standard input, pass - as the patch file.
     When importing from standard input, a patch name must be specified
     using the --name flag.
 
     To import an existing patch while renaming it::
 
       hg qimport -e existing-patch -n new-name
 
     Returns 0 if import succeeded.
     """
     lock = repo.lock() # cause this may move phase
     try:
         q = repo.mq
         try:
             imported = q.qimport(
                 repo, filename, patchname=opts.get('name'),
                 existing=opts.get('existing'), force=opts.get('force'),
                 rev=opts.get('rev'), git=opts.get('git'))
         finally:
             q.savedirty()
     finally:
         lock.release()
 
     if imported and opts.get('push') and not opts.get('rev'):
         return q.push(repo, imported[-1])
     return 0
 
 def qinit(ui, repo, create):
     """initialize a new queue repository
 
     This command also creates a series file for ordering patches, and
     an mq-specific .hgignore file in the queue repository, to exclude
     the status and guards files (these contain mostly transient state).
 
     Returns 0 if initialization succeeded."""
     q = repo.mq
     r = q.init(repo, create)
     q.savedirty()
     if r:
         if not os.path.exists(r.wjoin('.hgignore')):
             fp = r.wopener('.hgignore', 'w')
             fp.write('^\\.hg\n')
             fp.write('^\\.mq\n')
             fp.write('syntax: glob\n')
             fp.write('status\n')
             fp.write('guards\n')
             fp.close()
         if not os.path.exists(r.wjoin('series')):
             r.wopener('series', 'w').close()
         r[None].add(['.hgignore', 'series'])
         commands.add(ui, r)
     return 0
 
 @command("^qinit",
          [('c', 'create-repo', None, _('create queue repository'))],
          _('hg qinit [-c]'))
 def init(ui, repo, **opts):
     """init a new queue repository (DEPRECATED)
 
     The queue repository is unversioned by default. If
     -c/--create-repo is specified, qinit will create a separate nested
     repository for patches (qinit -c may also be run later to convert
     an unversioned patch repository into a versioned one). You can use
     qcommit to commit changes to this queue repository.
 
     This command is deprecated. Without -c, it's implied by other relevant
     commands. With -c, use :hg:`init --mq` instead."""
     return qinit(ui, repo, create=opts.get('create_repo'))
 
 @command("qclone",
          [('', 'pull', None, _('use pull protocol to copy metadata')),
           ('U', 'noupdate', None,
            _('do not update the new working directories')),
           ('', 'uncompressed', None,
            _('use uncompressed transfer (fast over LAN)')),
           ('p', 'patches', '',
            _('location of source patch repository'), _('REPO')),
          ] + commands.remoteopts,
          _('hg qclone [OPTION]... SOURCE [DEST]'),
          norepo=True)
 def clone(ui, source, dest=None, **opts):
     '''clone main and patch repository at same time
 
     If source is local, destination will have no patches applied. If
     source is remote, this command can not check if patches are
     applied in source, so cannot guarantee that patches are not
     applied in destination. If you clone remote repository, be sure
     before that it has no patches applied.
 
     Source patch repository is looked for in <src>/.hg/patches by
     default. Use -p <url> to change.
 
     The patch directory must be a nested Mercurial repository, as
     would be created by :hg:`init --mq`.
 
     Return 0 on success.
     '''
     def patchdir(repo):
         """compute a patch repo url from a repo object"""
         url = repo.url()
         if url.endswith('/'):
             url = url[:-1]
         return url + '/.hg/patches'
 
     # main repo (destination and sources)
     if dest is None:
         dest = hg.defaultdest(source)
     sr = hg.peer(ui, opts, ui.expandpath(source))
 
     # patches repo (source only)
     if opts.get('patches'):
         patchespath = ui.expandpath(opts.get('patches'))
     else:
         patchespath = patchdir(sr)
     try:
         hg.peer(ui, opts, patchespath)
     except error.RepoError:
         raise util.Abort(_('versioned patch repository not found'
                            ' (see init --mq)'))
     qbase, destrev = None, None
     if sr.local():
         repo = sr.local()
         if repo.mq.applied and repo[qbase].phase() != phases.secret:
             qbase = repo.mq.applied[0].node
             if not hg.islocal(dest):
                 heads = set(repo.heads())
                 destrev = list(heads.difference(repo.heads(qbase)))
                 destrev.append(repo.changelog.parents(qbase)[0])
     elif sr.capable('lookup'):
         try:
             qbase = sr.lookup('qbase')
         except error.RepoError:
             pass
 
     ui.note(_('cloning main repository\n'))
     sr, dr = hg.clone(ui, opts, sr.url(), dest,
                       pull=opts.get('pull'),
                       rev=destrev,
                       update=False,
                       stream=opts.get('uncompressed'))
 
     ui.note(_('cloning patch repository\n'))
     hg.clone(ui, opts, opts.get('patches') or patchdir(sr), patchdir(dr),
              pull=opts.get('pull'), update=not opts.get('noupdate'),
              stream=opts.get('uncompressed'))
 
     if dr.local():
         repo = dr.local()
         if qbase:
             ui.note(_('stripping applied patches from destination '
                       'repository\n'))
             strip(ui, repo, [qbase], update=False, backup=None)
         if not opts.get('noupdate'):
             ui.note(_('updating destination repository\n'))
             hg.update(repo, repo.changelog.tip())
 
 @command("qcommit|qci",
          commands.table["^commit|ci"][1],
          _('hg qcommit [OPTION]... [FILE]...'),
          inferrepo=True)
 def commit(ui, repo, *pats, **opts):
     """commit changes in the queue repository (DEPRECATED)
 
     This command is deprecated; use :hg:`commit --mq` instead."""
     q = repo.mq
     r = q.qrepo()
     if not r:
         raise util.Abort('no queue repository')
     commands.commit(r.ui, r, *pats, **opts)
 
 @command("qseries",
          [('m', 'missing', None, _('print patches not in series')),
          ] + seriesopts,
           _('hg qseries [-ms]'))
 def series(ui, repo, **opts):
     """print the entire series file
 
     Returns 0 on success."""
     repo.mq.qseries(repo, missing=opts.get('missing'),
                     summary=opts.get('summary'))
     return 0
 
 @command("qtop", seriesopts, _('hg qtop [-s]'))
 def top(ui, repo, **opts):
     """print the name of the current patch
 
     Returns 0 on success."""
     q = repo.mq
     t = q.applied and q.seriesend(True) or 0
     if t:
         q.qseries(repo, start=t - 1, length=1, status='A',
                   summary=opts.get('summary'))
     else:
         ui.write(_("no patches applied\n"))
         return 1
 
 @command("qnext", seriesopts, _('hg qnext [-s]'))
 def next(ui, repo, **opts):
     """print the name of the next pushable patch
 
     Returns 0 on success."""
     q = repo.mq
     end = q.seriesend()
     if end == len(q.series):
         ui.write(_("all patches applied\n"))
         return 1
     q.qseries(repo, start=end, length=1, summary=opts.get('summary'))
 
 @command("qprev", seriesopts, _('hg qprev [-s]'))
 def prev(ui, repo, **opts):
     """print the name of the preceding applied patch
 
     Returns 0 on success."""
     q = repo.mq
     l = len(q.applied)
     if l == 1:
         ui.write(_("only one patch applied\n"))
         return 1
     if not l:
         ui.write(_("no patches applied\n"))
         return 1
     idx = q.series.index(q.applied[-2].name)
     q.qseries(repo, start=idx, length=1, status='A',
               summary=opts.get('summary'))
 
 def setupheaderopts(ui, opts):
     if not opts.get('user') and opts.get('currentuser'):
         opts['user'] = ui.username()
     if not opts.get('date') and opts.get('currentdate'):
         opts['date'] = "%d %d" % util.makedate()
 
 @command("^qnew",
          [('e', 'edit', None, _('invoke editor on commit messages')),
           ('f', 'force', None, _('import uncommitted changes (DEPRECATED)')),
           ('g', 'git', None, _('use git extended diff format')),
           ('U', 'currentuser', None, _('add "From: <current user>" to patch')),
           ('u', 'user', '',
            _('add "From: <USER>" to patch'), _('USER')),
           ('D', 'currentdate', None, _('add "Date: <current date>" to patch')),
           ('d', 'date', '',
            _('add "Date: <DATE>" to patch'), _('DATE'))
           ] + commands.walkopts + commands.commitopts,
          _('hg qnew [-e] [-m TEXT] [-l FILE] PATCH [FILE]...'),
          inferrepo=True)
 def new(ui, repo, patch, *args, **opts):
     """create a new patch
 
     qnew creates a new patch on top of the currently-applied patch (if
     any). The patch will be initialized with any outstanding changes
     in the working directory. You may also use -I/--include,
     -X/--exclude, and/or a list of files after the patch name to add
     only changes to matching files to the new patch, leaving the rest
     as uncommitted modifications.
 
     -u/--user and -d/--date can be used to set the (given) user and
     date, respectively. -U/--currentuser and -D/--currentdate set user
     to current user and date to current date.
 
     -e/--edit, -m/--message or -l/--logfile set the patch header as
     well as the commit message. If none is specified, the header is
     empty and the commit message is '[mq]: PATCH'.
 
     Use the -g/--git option to keep the patch in the git extended diff
     format. Read the diffs help topic for more information on why this
     is important for preserving permission changes and copy/rename
     information.
 
     Returns 0 on successful creation of a new patch.
     """
     msg = cmdutil.logmessage(ui, opts)
     q = repo.mq
     opts['msg'] = msg
     setupheaderopts(ui, opts)
     q.new(repo, patch, *args, **opts)
     q.savedirty()
     return 0
 
 @command("^qrefresh",
          [('e', 'edit', None, _('invoke editor on commit messages')),
           ('g', 'git', None, _('use git extended diff format')),
           ('s', 'short', None,
            _('refresh only files already in the patch and specified files')),
           ('U', 'currentuser', None,
            _('add/update author field in patch with current user')),
           ('u', 'user', '',
            _('add/update author field in patch with given user'), _('USER')),
           ('D', 'currentdate', None,
            _('add/update date field in patch with current date')),
           ('d', 'date', '',
            _('add/update date field in patch with given date'), _('DATE'))
           ] + commands.walkopts + commands.commitopts,
          _('hg qrefresh [-I] [-X] [-e] [-m TEXT] [-l FILE] [-s] [FILE]...'),
          inferrepo=True)
 def refresh(ui, repo, *pats, **opts):
     """update the current patch
 
     If any file patterns are provided, the refreshed patch will
     contain only the modifications that match those patterns; the
     remaining modifications will remain in the working directory.
 
     If -s/--short is specified, files currently included in the patch
     will be refreshed just like matched files and remain in the patch.
 
     If -e/--edit is specified, Mercurial will start your configured editor for
     you to enter a message. In case qrefresh fails, you will find a backup of
     your message in ``.hg/last-message.txt``.
 
     hg add/remove/copy/rename work as usual, though you might want to
     use git-style patches (-g/--git or [diff] git=1) to track copies
     and renames. See the diffs help topic for more information on the
     git diff format.
 
     Returns 0 on success.
     """
     q = repo.mq
     message = cmdutil.logmessage(ui, opts)
     setupheaderopts(ui, opts)
     wlock = repo.wlock()
     try:
         ret = q.refresh(repo, pats, msg=message, **opts)
         q.savedirty()
         return ret
     finally:
         wlock.release()
 
 @command("^qdiff",
          commands.diffopts + commands.diffopts2 + commands.walkopts,
          _('hg qdiff [OPTION]... [FILE]...'),
          inferrepo=True)
 def diff(ui, repo, *pats, **opts):
     """diff of the current patch and subsequent modifications
 
     Shows a diff which includes the current patch as well as any
     changes which have been made in the working directory since the
     last refresh (thus showing what the current patch would become
     after a qrefresh).
 
     Use :hg:`diff` if you only want to see the changes made since the
     last qrefresh, or :hg:`export qtip` if you want to see changes
     made by the current patch without including changes made since the
     qrefresh.
 
     Returns 0 on success.
     """
     repo.mq.diff(repo, pats, opts)
     return 0
 
 @command('qfold',
          [('e', 'edit', None, _('invoke editor on commit messages')),
           ('k', 'keep', None, _('keep folded patch files')),
          ] + commands.commitopts,
          _('hg qfold [-e] [-k] [-m TEXT] [-l FILE] PATCH...'))
 def fold(ui, repo, *files, **opts):
     """fold the named patches into the current patch
 
     Patches must not yet be applied. Each patch will be successively
     applied to the current patch in the order given. If all the
     patches apply successfully, the current patch will be refreshed
     with the new cumulative patch, and the folded patches will be
     deleted. With -k/--keep, the folded patch files will not be
     removed afterwards.
 
     The header for each folded patch will be concatenated with the
     current patch header, separated by a line of ``* * *``.
 
     Returns 0 on success."""
     q = repo.mq
     if not files:
         raise util.Abort(_('qfold requires at least one patch name'))
     if not q.checktoppatch(repo)[0]:
         raise util.Abort(_('no patches applied'))
     q.checklocalchanges(repo)
 
     message = cmdutil.logmessage(ui, opts)
 
     parent = q.lookup('qtip')
     patches = []
     messages = []
     for f in files:
         p = q.lookup(f)
         if p in patches or p == parent:
             ui.warn(_('skipping already folded patch %s\n') % p)
         if q.isapplied(p):
             raise util.Abort(_('qfold cannot fold already applied patch %s')
                              % p)
         patches.append(p)
 
     for p in patches:
         if not message:
             ph = patchheader(q.join(p), q.plainmode)
             if ph.message:
                 messages.append(ph.message)
         pf = q.join(p)
         (patchsuccess, files, fuzz) = q.patch(repo, pf)
         if not patchsuccess:
             raise util.Abort(_('error folding patch %s') % p)
 
     if not message:
         ph = patchheader(q.join(parent), q.plainmode)
         message = ph.message
         for msg in messages:
             if msg:
                 if message:
                     message.append('* * *')
                 message.extend(msg)
         message = '\n'.join(message)
 
     diffopts = q.patchopts(q.diffopts(), *patches)
     wlock = repo.wlock()
     try:
         q.refresh(repo, msg=message, git=diffopts.git, edit=opts.get('edit'),
                   editform='mq.qfold')
         q.delete(repo, patches, opts)
         q.savedirty()
     finally:
         wlock.release()
 
 @command("qgoto",
          [('', 'keep-changes', None,
            _('tolerate non-conflicting local changes')),
           ('f', 'force', None, _('overwrite any local changes')),
           ('', 'no-backup', None, _('do not save backup copies of files'))],
          _('hg qgoto [OPTION]... PATCH'))
 def goto(ui, repo, patch, **opts):
     '''push or pop patches until named patch is at top of stack
 
     Returns 0 on success.'''
     opts = fixkeepchangesopts(ui, opts)
     q = repo.mq
     patch = q.lookup(patch)
     nobackup = opts.get('no_backup')
     keepchanges = opts.get('keep_changes')
     if q.isapplied(patch):
         ret = q.pop(repo, patch, force=opts.get('force'), nobackup=nobackup,
                     keepchanges=keepchanges)
     else:
         ret = q.push(repo, patch, force=opts.get('force'), nobackup=nobackup,
                      keepchanges=keepchanges)
     q.savedirty()
     return ret
 
 @command("qguard",
          [('l', 'list', None, _('list all patches and guards')),
           ('n', 'none', None, _('drop all guards'))],
          _('hg qguard [-l] [-n] [PATCH] [-- [+GUARD]... [-GUARD]...]'))
 def guard(ui, repo, *args, **opts):
     '''set or print guards for a patch
 
     Guards control whether a patch can be pushed. A patch with no
     guards is always pushed. A patch with a positive guard ("+foo") is
     pushed only if the :hg:`qselect` command has activated it. A patch with
     a negative guard ("-foo") is never pushed if the :hg:`qselect` command
     has activated it.
 
     With no arguments, print the currently active guards.
     With arguments, set guards for the named patch.
 
     .. note::
 
        Specifying negative guards now requires '--'.
 
     To set guards on another patch::
 
       hg qguard other.patch -- +2.6.17 -stable
 
     Returns 0 on success.
     '''
     def status(idx):
         guards = q.seriesguards[idx] or ['unguarded']
         if q.series[idx] in applied:
             state = 'applied'
         elif q.pushable(idx)[0]:
             state = 'unapplied'
         else:
             state = 'guarded'
         label = 'qguard.patch qguard.%s qseries.%s' % (state, state)
         ui.write('%s: ' % ui.label(q.series[idx], label))
 
         for i, guard in enumerate(guards):
             if guard.startswith('+'):
                 ui.write(guard, label='qguard.positive')
             elif guard.startswith('-'):
                 ui.write(guard, label='qguard.negative')
             else:
                 ui.write(guard, label='qguard.unguarded')
             if i != len(guards) - 1:
                 ui.write(' ')
         ui.write('\n')
     q = repo.mq
     applied = set(p.name for p in q.applied)
     patch = None
     args = list(args)
     if opts.get('list'):
         if args or opts.get('none'):
             raise util.Abort(_('cannot mix -l/--list with options or '
                                'arguments'))
         for i in xrange(len(q.series)):
             status(i)
         return
     if not args or args[0][0:1] in '-+':
         if not q.applied:
             raise util.Abort(_('no patches applied'))
         patch = q.applied[-1].name
     if patch is None and args[0][0:1] not in '-+':
         patch = args.pop(0)
     if patch is None:
         raise util.Abort(_('no patch to work with'))
     if args or opts.get('none'):
         idx = q.findseries(patch)
         if idx is None:
             raise util.Abort(_('no patch named %s') % patch)
         q.setguards(idx, args)
         q.savedirty()
     else:
         status(q.series.index(q.lookup(patch)))
 
 @command("qheader", [], _('hg qheader [PATCH]'))
 def header(ui, repo, patch=None):
     """print the header of the topmost or specified patch
 
     Returns 0 on success."""
     q = repo.mq
 
     if patch:
         patch = q.lookup(patch)
     else:
         if not q.applied:
             ui.write(_('no patches applied\n'))
             return 1
         patch = q.lookup('qtip')
     ph = patchheader(q.join(patch), q.plainmode)
 
     ui.write('\n'.join(ph.message) + '\n')
 
 def lastsavename(path):
     (directory, base) = os.path.split(path)
     names = os.listdir(directory)
     namere = re.compile("%s.([0-9]+)" % base)
     maxindex = None
     maxname = None
     for f in names:
         m = namere.match(f)
         if m:
             index = int(m.group(1))
             if maxindex is None or index > maxindex:
                 maxindex = index
                 maxname = f
     if maxname:
         return (os.path.join(directory, maxname), maxindex)
     return (None, None)
 
 def savename(path):
     (last, index) = lastsavename(path)
     if last is None:
         index = 0
     newpath = path + ".%d" % (index + 1)
     return newpath
 
 @command("^qpush",
          [('', 'keep-changes', None,
            _('tolerate non-conflicting local changes')),
           ('f', 'force', None, _('apply on top of local changes')),
           ('e', 'exact', None,
            _('apply the target patch to its recorded parent')),
           ('l', 'list', None, _('list patch name in commit text')),
           ('a', 'all', None, _('apply all patches')),
           ('m', 'merge', None, _('merge from another queue (DEPRECATED)')),
           ('n', 'name', '',
            _('merge queue name (DEPRECATED)'), _('NAME')),
           ('', 'move', None,
            _('reorder patch series and apply only the patch')),
           ('', 'no-backup', None, _('do not save backup copies of files'))],
          _('hg qpush [-f] [-l] [-a] [--move] [PATCH | INDEX]'))
 def push(ui, repo, patch=None, **opts):
     """push the next patch onto the stack
 
     By default, abort if the working directory contains uncommitted
     changes. With --keep-changes, abort only if the uncommitted files
     overlap with patched files. With -f/--force, backup and patch over
     uncommitted changes.
 
     Return 0 on success.
     """
     q = repo.mq
     mergeq = None
 
     opts = fixkeepchangesopts(ui, opts)
     if opts.get('merge'):
         if opts.get('name'):
             newpath = repo.join(opts.get('name'))
         else:
             newpath, i = lastsavename(q.path)
         if not newpath:
             ui.warn(_("no saved queues found, please use -n\n"))
             return 1
         mergeq = queue(ui, repo.baseui, repo.path, newpath)
         ui.warn(_("merging with queue at: %s\n") % mergeq.path)
     ret = q.push(repo, patch, force=opts.get('force'), list=opts.get('list'),
                  mergeq=mergeq, all=opts.get('all'), move=opts.get('move'),
                  exact=opts.get('exact'), nobackup=opts.get('no_backup'),
                  keepchanges=opts.get('keep_changes'))
     return ret
 
 @command("^qpop",
          [('a', 'all', None, _('pop all patches')),
           ('n', 'name', '',
            _('queue name to pop (DEPRECATED)'), _('NAME')),
           ('', 'keep-changes', None,
            _('tolerate non-conflicting local changes')),
           ('f', 'force', None, _('forget any local changes to patched files')),
           ('', 'no-backup', None, _('do not save backup copies of files'))],
          _('hg qpop [-a] [-f] [PATCH | INDEX]'))
 def pop(ui, repo, patch=None, **opts):
     """pop the current patch off the stack
 
     Without argument, pops off the top of the patch stack. If given a
     patch name, keeps popping off patches until the named patch is at
     the top of the stack.
 
     By default, abort if the working directory contains uncommitted
     changes. With --keep-changes, abort only if the uncommitted files
     overlap with patched files. With -f/--force, backup and discard
     changes made to such files.
 
     Return 0 on success.
     """
     opts = fixkeepchangesopts(ui, opts)
     localupdate = True
     if opts.get('name'):
         q = queue(ui, repo.baseui, repo.path, repo.join(opts.get('name')))
         ui.warn(_('using patch queue: %s\n') % q.path)
         localupdate = False
     else:
         q = repo.mq
     ret = q.pop(repo, patch, force=opts.get('force'), update=localupdate,
                 all=opts.get('all'), nobackup=opts.get('no_backup'),
                 keepchanges=opts.get('keep_changes'))
     q.savedirty()
     return ret
 
 @command("qrename|qmv", [], _('hg qrename PATCH1 [PATCH2]'))
 def rename(ui, repo, patch, name=None, **opts):
     """rename a patch
 
     With one argument, renames the current patch to PATCH1.
     With two arguments, renames PATCH1 to PATCH2.
 
     Returns 0 on success."""
     q = repo.mq
     if not name:
         name = patch
         patch = None
 
     if patch:
         patch = q.lookup(patch)
     else:
         if not q.applied:
             ui.write(_('no patches applied\n'))
             return
         patch = q.lookup('qtip')
     absdest = q.join(name)
     if os.path.isdir(absdest):
         name = normname(os.path.join(name, os.path.basename(patch)))
         absdest = q.join(name)
     q.checkpatchname(name)
 
     ui.note(_('renaming %s to %s\n') % (patch, name))
     i = q.findseries(patch)
     guards = q.guard_re.findall(q.fullseries[i])
     q.fullseries[i] = name + ''.join([' #' + g for g in guards])
     q.parseseries()
     q.seriesdirty = True
 
     info = q.isapplied(patch)
     if info:
         q.applied[info[0]] = statusentry(info[1], name)
     q.applieddirty = True
 
     destdir = os.path.dirname(absdest)
     if not os.path.isdir(destdir):
         os.makedirs(destdir)
     util.rename(q.join(patch), absdest)
     r = q.qrepo()
     if r and patch in r.dirstate:
         wctx = r[None]
         wlock = r.wlock()
         try:
             if r.dirstate[patch] == 'a':
                 r.dirstate.drop(patch)
                 r.dirstate.add(name)
             else:
                 wctx.copy(patch, name)
                 wctx.forget([patch])
         finally:
             wlock.release()
 
     q.savedirty()
 
 @command("qrestore",
          [('d', 'delete', None, _('delete save entry')),
           ('u', 'update', None, _('update queue working directory'))],
          _('hg qrestore [-d] [-u] REV'))
 def restore(ui, repo, rev, **opts):
     """restore the queue state saved by a revision (DEPRECATED)
 
     This command is deprecated, use :hg:`rebase` instead."""
     rev = repo.lookup(rev)
     q = repo.mq
     q.restore(repo, rev, delete=opts.get('delete'),
               qupdate=opts.get('update'))
     q.savedirty()
     return 0
 
 @command("qsave",
          [('c', 'copy', None, _('copy patch directory')),
           ('n', 'name', '',
            _('copy directory name'), _('NAME')),
           ('e', 'empty', None, _('clear queue status file')),
           ('f', 'force', None, _('force copy'))] + commands.commitopts,
          _('hg qsave [-m TEXT] [-l FILE] [-c] [-n NAME] [-e] [-f]'))
 def save(ui, repo, **opts):
     """save current queue state (DEPRECATED)
 
     This command is deprecated, use :hg:`rebase` instead."""
     q = repo.mq
     message = cmdutil.logmessage(ui, opts)
     ret = q.save(repo, msg=message)
     if ret:
         return ret
     q.savedirty() # save to .hg/patches before copying
     if opts.get('copy'):
         path = q.path
         if opts.get('name'):
             newpath = os.path.join(q.basepath, opts.get('name'))
             if os.path.exists(newpath):
                 if not os.path.isdir(newpath):
                     raise util.Abort(_('destination %s exists and is not '
                                        'a directory') % newpath)
                 if not opts.get('force'):
                     raise util.Abort(_('destination %s exists, '
                                        'use -f to force') % newpath)
         else:
             newpath = savename(path)
         ui.warn(_("copy %s to %s\n") % (path, newpath))
         util.copyfiles(path, newpath)
     if opts.get('empty'):
         del q.applied[:]
         q.applieddirty = True
         q.savedirty()
     return 0
 
 
 @command("qselect",
          [('n', 'none', None, _('disable all guards')),
           ('s', 'series', None, _('list all guards in series file')),
           ('', 'pop', None, _('pop to before first guarded applied patch')),
           ('', 'reapply', None, _('pop, then reapply patches'))],
          _('hg qselect [OPTION]... [GUARD]...'))
 def select(ui, repo, *args, **opts):
     '''set or print guarded patches to push
 
     Use the :hg:`qguard` command to set or print guards on patch, then use
     qselect to tell mq which guards to use. A patch will be pushed if
     it has no guards or any positive guards match the currently
     selected guard, but will not be pushed if any negative guards
     match the current guard. For example::
 
         qguard foo.patch -- -stable    (negative guard)
         qguard bar.patch    +stable    (positive guard)
         qselect stable
 
     This activates the "stable" guard. mq will skip foo.patch (because
     it has a negative match) but push bar.patch (because it has a
     positive match).
 
     With no arguments, prints the currently active guards.
     With one argument, sets the active guard.
 
     Use -n/--none to deactivate guards (no other arguments needed).
     When no guards are active, patches with positive guards are
     skipped and patches with negative guards are pushed.
 
     qselect can change the guards on applied patches. It does not pop
     guarded patches by default. Use --pop to pop back to the last
     applied patch that is not guarded. Use --reapply (which implies
     --pop) to push back to the current patch afterwards, but skip
     guarded patches.
 
     Use -s/--series to print a list of all guards in the series file
     (no other arguments needed). Use -v for more information.
 
     Returns 0 on success.'''
 
     q = repo.mq
     guards = q.active()
     pushable = lambda i: q.pushable(q.applied[i].name)[0]
     if args or opts.get('none'):
         old_unapplied = q.unapplied(repo)
         old_guarded = [i for i in xrange(len(q.applied)) if not pushable(i)]
         q.setactive(args)
         q.savedirty()
         if not args:
             ui.status(_('guards deactivated\n'))
         if not opts.get('pop') and not opts.get('reapply'):
             unapplied = q.unapplied(repo)
             guarded = [i for i in xrange(len(q.applied)) if not pushable(i)]
             if len(unapplied) != len(old_unapplied):
                 ui.status(_('number of unguarded, unapplied patches has '
                             'changed from %d to %d\n') %
                           (len(old_unapplied), len(unapplied)))
             if len(guarded) != len(old_guarded):
                 ui.status(_('number of guarded, applied patches has changed '
                             'from %d to %d\n') %
                           (len(old_guarded), len(guarded)))
     elif opts.get('series'):
         guards = {}
         noguards = 0
         for gs in q.seriesguards:
             if not gs:
                 noguards += 1
             for g in gs:
                 guards.setdefault(g, 0)
                 guards[g] += 1
         if ui.verbose:
             guards['NONE'] = noguards
         guards = guards.items()
         guards.sort(key=lambda x: x[0][1:])
         if guards:
             ui.note(_('guards in series file:\n'))
             for guard, count in guards:
                 ui.note('%2d  ' % count)
                 ui.write(guard, '\n')
         else:
             ui.note(_('no guards in series file\n'))
     else:
         if guards:
             ui.note(_('active guards:\n'))
             for g in guards:
                 ui.write(g, '\n')
         else:
             ui.write(_('no active guards\n'))
     reapply = opts.get('reapply') and q.applied and q.applied[-1].name
     popped = False
     if opts.get('pop') or opts.get('reapply'):
         for i in xrange(len(q.applied)):
             if not pushable(i):
                 ui.status(_('popping guarded patches\n'))
                 popped = True
                 if i == 0:
                     q.pop(repo, all=True)
                 else:
                     q.pop(repo, q.applied[i - 1].name)
                 break
     if popped:
         try:
             if reapply:
                 ui.status(_('reapplying unguarded patches\n'))
                 q.push(repo, reapply)
         finally:
             q.savedirty()
 
 @command("qfinish",
          [('a', 'applied', None, _('finish all applied changesets'))],
          _('hg qfinish [-a] [REV]...'))
 def finish(ui, repo, *revrange, **opts):
     """move applied patches into repository history
 
     Finishes the specified revisions (corresponding to applied
     patches) by moving them out of mq control into regular repository
     history.
 
     Accepts a revision range or the -a/--applied option. If --applied
     is specified, all applied mq revisions are removed from mq
     control. Otherwise, the given revisions must be at the base of the
     stack of applied patches.
 
     This can be especially useful if your changes have been applied to
     an upstream repository, or if you are about to push your changes
     to upstream.
 
     Returns 0 on success.
     """
     if not opts.get('applied') and not revrange:
         raise util.Abort(_('no revisions specified'))
     elif opts.get('applied'):
         revrange = ('qbase::qtip',) + revrange
 
     q = repo.mq
     if not q.applied:
         ui.status(_('no patches applied\n'))
         return 0
 
     revs = scmutil.revrange(repo, revrange)
     if repo['.'].rev() in revs and repo[None].files():
         ui.warn(_('warning: uncommitted changes in the working directory\n'))
     # queue.finish may changes phases but leave the responsibility to lock the
     # repo to the caller to avoid deadlock with wlock. This command code is
     # responsibility for this locking.
     lock = repo.lock()
     try:
         q.finish(repo, revs)
         q.savedirty()
     finally:
         lock.release()
     return 0
 
 @command("qqueue",
          [('l', 'list', False, _('list all available queues')),
           ('', 'active', False, _('print name of active queue')),
           ('c', 'create', False, _('create new queue')),
           ('', 'rename', False, _('rename active queue')),
           ('', 'delete', False, _('delete reference to queue')),
           ('', 'purge', False, _('delete queue, and remove patch dir')),
          ],
          _('[OPTION] [QUEUE]'))
 def qqueue(ui, repo, name=None, **opts):
     '''manage multiple patch queues
 
     Supports switching between different patch queues, as well as creating
     new patch queues and deleting existing ones.
 
     Omitting a queue name or specifying -l/--list will show you the registered
     queues - by default the "normal" patches queue is registered. The currently
     active queue will be marked with "(active)". Specifying --active will print
     only the name of the active queue.
 
     To create a new queue, use -c/--create. The queue is automatically made
     active, except in the case where there are applied patches from the
     currently active queue in the repository. Then the queue will only be
     created and switching will fail.
 
     To delete an existing queue, use --delete. You cannot delete the currently
     active queue.
 
     Returns 0 on success.
     '''
     q = repo.mq
     _defaultqueue = 'patches'
     _allqueues = 'patches.queues'
     _activequeue = 'patches.queue'
 
     def _getcurrent():
         cur = os.path.basename(q.path)
         if cur.startswith('patches-'):
             cur = cur[8:]
         return cur
 
     def _noqueues():
         try:
-            fh = repo.opener(_allqueues, 'r')
+            fh = repo.vfs(_allqueues, 'r')
             fh.close()
         except IOError:
             return True
 
         return False
 
     def _getqueues():
         current = _getcurrent()
 
         try:
-            fh = repo.opener(_allqueues, 'r')
+            fh = repo.vfs(_allqueues, 'r')
             queues = [queue.strip() for queue in fh if queue.strip()]
             fh.close()
             if current not in queues:
                 queues.append(current)
         except IOError:
             queues = [_defaultqueue]
 
         return sorted(queues)
 
     def _setactive(name):
         if q.applied:
             raise util.Abort(_('new queue created, but cannot make active '
                                'as patches are applied'))
         _setactivenocheck(name)
 
     def _setactivenocheck(name):
-        fh = repo.opener(_activequeue, 'w')
+        fh = repo.vfs(_activequeue, 'w')
         if name != 'patches':
             fh.write(name)
         fh.close()
 
     def _addqueue(name):
-        fh = repo.opener(_allqueues, 'a')
+        fh = repo.vfs(_allqueues, 'a')
         fh.write('%s\n' % (name,))
         fh.close()
 
     def _queuedir(name):
         if name == 'patches':
             return repo.join('patches')
         else:
             return repo.join('patches-' + name)
 
     def _validname(name):
         for n in name:
             if n in ':\\/.':
                 return False
         return True
 
     def _delete(name):
         if name not in existing:
             raise util.Abort(_('cannot delete queue that does not exist'))
 
         current = _getcurrent()
 
         if name == current:
             raise util.Abort(_('cannot delete currently active queue'))
 
-        fh = repo.opener('patches.queues.new', 'w')
+        fh = repo.vfs('patches.queues.new', 'w')
         for queue in existing:
             if queue == name:
                 continue
             fh.write('%s\n' % (queue,))
         fh.close()
         util.rename(repo.join('patches.queues.new'), repo.join(_allqueues))
 
     if not name or opts.get('list') or opts.get('active'):
         current = _getcurrent()
         if opts.get('active'):
             ui.write('%s\n' % (current,))
             return
         for queue in _getqueues():
             ui.write('%s' % (queue,))
             if queue == current and not ui.quiet:
                 ui.write(_(' (active)\n'))
             else:
                 ui.write('\n')
         return
 
     if not _validname(name):
         raise util.Abort(
                 _('invalid queue name, may not contain the characters ":\\/."'))
 
     existing = _getqueues()
 
     if opts.get('create'):
         if name in existing:
             raise util.Abort(_('queue "%s" already exists') % name)
         if _noqueues():
             _addqueue(_defaultqueue)
         _addqueue(name)
         _setactive(name)
     elif opts.get('rename'):
         current = _getcurrent()
         if name == current:
             raise util.Abort(_('can\'t rename "%s" to its current name') % name)
         if name in existing:
             raise util.Abort(_('queue "%s" already exists') % name)
 
         olddir = _queuedir(current)
         newdir = _queuedir(name)
 
         if os.path.exists(newdir):
             raise util.Abort(_('non-queue directory "%s" already exists') %
                     newdir)
 
-        fh = repo.opener('patches.queues.new', 'w')
+        fh = repo.vfs('patches.queues.new', 'w')
         for queue in existing:
             if queue == current:
                 fh.write('%s\n' % (name,))
                 if os.path.exists(olddir):
                     util.rename(olddir, newdir)
             else:
                 fh.write('%s\n' % (queue,))
         fh.close()
         util.rename(repo.join('patches.queues.new'), repo.join(_allqueues))
         _setactivenocheck(name)
     elif opts.get('delete'):
         _delete(name)
     elif opts.get('purge'):
         if name in existing:
             _delete(name)
         qdir = _queuedir(name)
         if os.path.exists(qdir):
             shutil.rmtree(qdir)
     else:
         if name not in existing:
             raise util.Abort(_('use --create to create a new queue'))
         _setactive(name)
 
 def mqphasedefaults(repo, roots):
     """callback used to set mq changeset as secret when no phase data exists"""
     if repo.mq.applied:
         if repo.ui.configbool('mq', 'secret', False):
             mqphase = phases.secret
         else:
             mqphase = phases.draft
         qbase = repo[repo.mq.applied[0].node]
         roots[mqphase].add(qbase.node())
     return roots
 
 def reposetup(ui, repo):
     class mqrepo(repo.__class__):
         @localrepo.unfilteredpropertycache
         def mq(self):
             return queue(self.ui, self.baseui, self.path)
 
         def invalidateall(self):
             super(mqrepo, self).invalidateall()
             if localrepo.hasunfilteredcache(self, 'mq'):
                 # recreate mq in case queue path was changed
                 delattr(self.unfiltered(), 'mq')
 
         def abortifwdirpatched(self, errmsg, force=False):
             if self.mq.applied and self.mq.checkapplied and not force:
                 parents = self.dirstate.parents()
                 patches = [s.node for s in self.mq.applied]
                 if parents[0] in patches or parents[1] in patches:
                     raise util.Abort(errmsg)
 
         def commit(self, text="", user=None, date=None, match=None,
                    force=False, editor=False, extra={}):
             self.abortifwdirpatched(
                 _('cannot commit over an applied mq patch'),
                 force)
 
             return super(mqrepo, self).commit(text, user, date, match, force,
                                               editor, extra)
 
         def checkpush(self, pushop):
             if self.mq.applied and self.mq.checkapplied and not pushop.force:
                 outapplied = [e.node for e in self.mq.applied]
                 if pushop.revs:
                     # Assume applied patches have no non-patch descendants and
                     # are not on remote already. Filtering any changeset not
                     # pushed.
                     heads = set(pushop.revs)
                     for node in reversed(outapplied):
                         if node in heads:
                             break
                         else:
                             outapplied.pop()
                 # looking for pushed and shared changeset
                 for node in outapplied:
                     if self[node].phase() < phases.secret:
                         raise util.Abort(_('source has mq patches applied'))
                 # no non-secret patches pushed
             super(mqrepo, self).checkpush(pushop)
 
         def _findtags(self):
             '''augment tags from base class with patch tags'''
             result = super(mqrepo, self)._findtags()
 
             q = self.mq
             if not q.applied:
                 return result
 
             mqtags = [(patch.node, patch.name) for patch in q.applied]
 
             try:
                 # for now ignore filtering business
                 self.unfiltered().changelog.rev(mqtags[-1][0])
             except error.LookupError:
                 self.ui.warn(_('mq status file refers to unknown node %s\n')
                              % short(mqtags[-1][0]))
                 return result
 
             # do not add fake tags for filtered revisions
             included = self.changelog.hasnode
             mqtags = [mqt for mqt in mqtags if included(mqt[0])]
             if not mqtags:
                 return result
 
             mqtags.append((mqtags[-1][0], 'qtip'))
             mqtags.append((mqtags[0][0], 'qbase'))
             mqtags.append((self.changelog.parents(mqtags[0][0])[0], 'qparent'))
             tags = result[0]
             for patch in mqtags:
                 if patch[1] in tags:
                     self.ui.warn(_('tag %s overrides mq patch of the same '
                                    'name\n') % patch[1])
                 else:
                     tags[patch[1]] = patch[0]
 
             return result
 
     if repo.local():
         repo.__class__ = mqrepo
 
         repo._phasedefaults.append(mqphasedefaults)
 
 def mqimport(orig, ui, repo, *args, **kwargs):
     if (util.safehasattr(repo, 'abortifwdirpatched')
         and not kwargs.get('no_commit', False)):
         repo.abortifwdirpatched(_('cannot import over an applied patch'),
                                    kwargs.get('force'))
     return orig(ui, repo, *args, **kwargs)
 
 def mqinit(orig, ui, *args, **kwargs):
     mq = kwargs.pop('mq', None)
 
     if not mq:
         return orig(ui, *args, **kwargs)
 
     if args:
         repopath = args[0]
         if not hg.islocal(repopath):
             raise util.Abort(_('only a local queue repository '
                                'may be initialized'))
     else:
         repopath = cmdutil.findrepo(os.getcwd())
         if not repopath:
             raise util.Abort(_('there is no Mercurial repository here '
                                '(.hg not found)'))
     repo = hg.repository(ui, repopath)
     return qinit(ui, repo, True)
 
 def mqcommand(orig, ui, repo, *args, **kwargs):
     """Add --mq option to operate on patch repository instead of main"""
 
     # some commands do not like getting unknown options
     mq = kwargs.pop('mq', None)
 
     if not mq:
         return orig(ui, repo, *args, **kwargs)
 
     q = repo.mq
     r = q.qrepo()
     if not r:
         raise util.Abort(_('no queue repository'))
     return orig(r.ui, r, *args, **kwargs)
 
 def summaryhook(ui, repo):
     q = repo.mq
     m = []
     a, u = len(q.applied), len(q.unapplied(repo))
     if a:
         m.append(ui.label(_("%d applied"), 'qseries.applied') % a)
     if u:
         m.append(ui.label(_("%d unapplied"), 'qseries.unapplied') % u)
     if m:
         # i18n: column positioning for "hg summary"
         ui.write(_("mq:     %s\n") % ', '.join(m))
     else:
         # i18n: column positioning for "hg summary"
         ui.note(_("mq:     (empty queue)\n"))
 
 def revsetmq(repo, subset, x):
     """``mq()``
     Changesets managed by MQ.
     """
     revset.getargs(x, 0, 0, _("mq takes no arguments"))
     applied = set([repo[r.node].rev() for r in repo.mq.applied])
     return revset.baseset([r for r in subset if r in applied])
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = [revsetmq]
 
 def extsetup(ui):
     # Ensure mq wrappers are called first, regardless of extension load order by
     # NOT wrapping in uisetup() and instead deferring to init stage two here.
     mqopt = [('', 'mq', None, _("operate on patch repository"))]
 
     extensions.wrapcommand(commands.table, 'import', mqimport)
     cmdutil.summaryhooks.add('mq', summaryhook)
 
     entry = extensions.wrapcommand(commands.table, 'init', mqinit)
     entry[1].extend(mqopt)
 
     nowrap = set(commands.norepo.split(" "))
 
     def dotable(cmdtable):
         for cmd in cmdtable.keys():
             cmd = cmdutil.parsealiases(cmd)[0]
             if cmd in nowrap:
                 continue
             entry = extensions.wrapcommand(cmdtable, cmd, mqcommand)
             entry[1].extend(mqopt)
 
     dotable(commands.table)
 
     for extname, extmodule in extensions.extensions():
         if extmodule.__file__ != __file__:
             dotable(getattr(extmodule, 'cmdtable', {}))
 
     revset.symbols['mq'] = revsetmq
 
 colortable = {'qguard.negative': 'red',
               'qguard.positive': 'yellow',
               'qguard.unguarded': 'green',
               'qseries.applied': 'blue bold underline',
               'qseries.guarded': 'black bold',
               'qseries.missing': 'red bold',
               'qseries.unapplied': 'black bold'}

hgext/patchbomb.py

@@ -1,653 +1,653 b''
 # 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.
 
 You can control the default inclusion of an introduction message with the
 ``patchbomb.intro`` configuration option. The configuration is always
 overwritten by command line flags like --intro and --desc::
 
   [patchbomb]
   intro=auto   # include introduction message if more than 1 patch (default)
   intro=never  # never include an introduction message
   intro=always # always include an introduction message
 
 You can set patchbomb to always ask for confirmation by setting
 ``patchbomb.confirm`` to true.
 '''
 
 import os, errno, socket, tempfile, cStringIO
 import email
 # On python2.4 you have to import these by name or they fail to
 # load. This was not a problem on Python 2.7.
 import email.Generator
 import email.MIMEMultipart
 
 from mercurial import cmdutil, commands, hg, mail, patch, util
 from mercurial import scmutil
 from mercurial.i18n import _
 from mercurial.node import bin
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 def prompt(ui, prompt, default=None, rest=':'):
     if default:
         prompt += ' [%s]' % default
     return ui.prompt(prompt + rest, default)
 
 def introwanted(ui, opts, number):
     '''is an introductory message apparently wanted?'''
     introconfig = ui.config('patchbomb', 'intro', 'auto')
     if opts.get('intro') or opts.get('desc'):
         intro = True
     elif introconfig == 'always':
         intro = True
     elif introconfig == 'never':
         intro = False
     elif introconfig == 'auto':
         intro = 1 < number
     else:
         ui.write_err(_('warning: invalid patchbomb.intro value "%s"\n')
                      % introconfig)
         ui.write_err(_('(should be one of always, never, auto)\n'))
         intro = 1 < number
     return intro
 
 def makepatch(ui, repo, patchlines, opts, _charsets, idx, total, numbered,
               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') and not opts.get('body'):
         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, git=opts.get('git'))
     if opts.get('diffstat'):
         body += ds + '\n\n'
 
     addattachment = opts.get('attach') or opts.get('inline')
     if not addattachment or opts.get('body'):
         body += '\n'.join(patchlines)
 
     if addattachment:
         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.makefilename(repo, '%b-%n.patch',
                                                  binnode, seqno=idx,
                                                  total=total)
             else:
                 patchname = cmdutil.makefilename(repo, '%b.patch', binnode)
         disposition = 'inline'
         if opts.get('attach'):
             disposition = 'attachment'
         p['Content-Disposition'] = disposition + '; filename=' + patchname
         msg.attach(p)
     else:
         msg = mail.mimetextpatch(body, display=opts.get('test'))
 
     flag = ' '.join(opts.get('flag'))
     if flag:
         flag = ' ' + flag
 
     subj = desc[0].strip().rstrip('. ')
     if not numbered:
         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
     msg['X-Mercurial-Series-Index'] = '%i' % idx
     msg['X-Mercurial-Series-Total'] = '%i' % total
     return msg, subj, ds
 
 def _getpatches(repo, revs, **opts):
     """return a list of patches for a list of revisions
 
     Each patch in the list is itself a list of lines.
     """
     ui = repo.ui
     prev = repo['.'].rev()
     for r in scmutil.revrange(repo, revs):
         if r == prev and (repo[None].files() or repo[None].deleted()):
             ui.warn(_('warning: working directory has '
                       'uncommitted changes\n'))
         output = cStringIO.StringIO()
         cmdutil.export(repo, [r], fp=output,
                      opts=patch.difffeatureopts(ui, opts, git=True))
         yield output.getvalue().split('\n')
 def _getbundle(repo, dest, **opts):
     """return a bundle containing changesets missing in "dest"
 
     The `opts` keyword-arguments are the same as the one accepted by the
     `bundle` command.
 
     The bundle is a returned as a single in-memory binary blob.
     """
     ui = repo.ui
     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 OSError:
             pass
         os.rmdir(tmpdir)
 
 def _getdescription(repo, defaultbody, sender, **opts):
     """obtain the body of the introduction message and return it
 
     This is also used for the body of email with an attached bundle.
 
     The body can be obtained either from the command line option or entered by
     the user through the editor.
     """
     ui = repo.ui
     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(defaultbody, sender)
         # Save series description in case sendmail fails
-        msgfile = repo.opener('last-email.txt', 'wb')
+        msgfile = repo.vfs('last-email.txt', 'wb')
         msgfile.write(body)
         msgfile.close()
     return body
 
 def _getbundlemsgs(repo, sender, bundle, **opts):
     """Get the full email for sending a given bundle
 
     This function returns a list of "email" tuples (subject, content, None).
     The list is always one message long in that case.
     """
     ui = repo.ui
     _charsets = mail._charsets(ui)
     subj = (opts.get('subject')
             or prompt(ui, 'Subject:', 'A bundle for your repository'))
 
     body = _getdescription(repo, '', sender, **opts)
     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)]
 
 def _makeintro(repo, sender, patches, **opts):
     """make an introduction email, asking the user for content if needed
 
     email is returned as (subject, body, cumulative-diffstat)"""
     ui = repo.ui
     _charsets = mail._charsets(ui)
     tlen = len(str(len(patches)))
 
     flag = opts.get('flag') or ''
     if flag:
         flag = ' ' + ' '.join(flag)
     prefix = '[PATCH %0*d of %d%s]' % (tlen, 0, len(patches), flag)
 
     subj = (opts.get('subject') or
             prompt(ui, '(optional) Subject: ', rest=prefix, default=''))
     if not subj:
         return None         # skip intro if the user doesn't bother
 
     subj = prefix + ' ' + subj
 
     body = ''
     if opts.get('diffstat'):
         # generate a cumulative diffstat of the whole patch series
         diffstat = patch.diffstat(sum(patches, []))
         body = '\n' + diffstat
     else:
         diffstat = None
 
     body = _getdescription(repo, body, sender, **opts)
     msg = mail.mimeencode(ui, body, _charsets, opts.get('test'))
     msg['Subject'] = mail.headencode(ui, subj, _charsets,
                                      opts.get('test'))
     return (msg, subj, diffstat)
 
 def _getpatchmsgs(repo, sender, patches, patchnames=None, **opts):
     """return a list of emails from a list of patches
 
     This involves introduction message creation if necessary.
 
     This function returns a list of "email" tuples (subject, content, None).
     """
     ui = repo.ui
     _charsets = mail._charsets(ui)
     msgs = []
 
     ui.write(_('this patch series consists of %d patches.\n\n')
              % len(patches))
 
     # build the intro message, or skip it if the user declines
     if introwanted(ui, opts, len(patches)):
         msg = _makeintro(repo, sender, patches, **opts)
         if msg:
             msgs.append(msg)
 
     # are we going to send more than one message?
     numbered = len(msgs) + len(patches) > 1
 
     # now generate the actual patch messages
     name = None
     for i, p in enumerate(patches):
         if patchnames:
             name = patchnames[i]
         msg = makepatch(ui, repo, p, opts, _charsets, i + 1,
                         len(patches), numbered, name)
         msgs.append(msg)
 
     return msgs
 
 def _getoutgoing(repo, dest, revs):
     '''Return the revisions present locally but not in dest'''
     ui = repo.ui
     url = ui.expandpath(dest or 'default-push', dest or 'default')
     url = hg.parseurl(url)[0]
     ui.status(_('comparing with %s\n') % util.hidepassword(url))
 
     revs = [r for r in scmutil.revrange(repo, revs) if r >= 0]
     if not revs:
         revs = [len(repo) - 1]
     revs = repo.revs('outgoing(%s) and ::%ld', dest or '', revs)
     if not revs:
         ui.status(_("no changes found\n"))
         return []
     return [str(r) for r in revs]
 
 emailopts = [
     ('', 'body', None, _('send patches as inline message text (default)')),
     ('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'))]
 
 @command('email',
     [('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]...'))
 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 --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. You can include a patch both as text in the email
     body and as a regular or an inline attachment by combining the
     -a/--attach or -i/--inline with the --body option.
 
     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``.
 
     The default behavior of this command can be customized through
     configuration. (See :hg:`help patchbomb` for details)
 
     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')
 
     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(repo, 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())
 
     sender = (opts.get('from') or ui.config('email', 'from') or
               ui.config('patchbomb', 'from') or
               prompt(ui, 'From', ui.username()))
 
     if patches:
         msgs = _getpatchmsgs(repo, sender, patches, opts.get('patchnames'),
                              **opts)
     elif bundle:
         bundledata = _getbundle(repo, dest, **opts)
         bundleopts = opts.copy()
         bundleopts.pop('bundle', None)  # already processed
         msgs = _getbundlemsgs(repo, sender, bundledata, **bundleopts)
     else:
         _patches = list(_getpatches(repo, revs, **opts))
         msgs = _getpatchmsgs(repo, sender, _patches, **opts)
 
     showaddrs = []
 
     def getaddrs(header, ask=False, default=None):
         configkey = header.lower()
         opt = header.replace('-', '_').lower()
         addrs = opts.get(opt)
         if addrs:
             showaddrs.append('%s: %s' % (header, ', '.join(addrs)))
             return mail.addrlistencode(ui, addrs, _charsets, opts.get('test'))
 
         # not on the command line: fallback to config and then maybe ask
         addr = (ui.config('email', configkey) or
                 ui.config('patchbomb', configkey) or
                 '')
         if not addr and ask:
             addr = prompt(ui, header, default=default)
         if addr:
             showaddrs.append('%s: %s' % (header, addr))
             return mail.addrlistencode(ui, [addr], _charsets, opts.get('test'))
         else:
             return default
 
     to = getaddrs('To', ask=True)
     if not to:
         # we can get here in non-interactive mode
         raise util.Abort(_('no recipient addresses provided'))
     cc = getaddrs('Cc', ask=True, default='') or []
     bcc = getaddrs('Bcc') or []
     replyto = getaddrs('Reply-To')
 
     confirm = ui.configbool('patchbomb', 'confirm')
     confirm |= bool(opts.get('diffstat') or opts.get('confirm'))
 
     if confirm:
         ui.write(_('\nFinal summary:\n\n'), label='patchbomb.finalsummary')
         ui.write(('From: %s\n' % sender), label='patchbomb.from')
         for addr in showaddrs:
             ui.write('%s\n' % addr, label='patchbomb.to')
         for m, subj, ds in msgs:
             ui.write(('Subject: %s\n' % subj), label='patchbomb.subject')
             if ds:
                 ui.write(ds, label='patchbomb.diffstats')
         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 += '>'
 
     sender_addr = email.Utils.parseaddr(sender)[1]
     sender = mail.addressencode(ui, sender, _charsets, opts.get('test'))
     sendmail = None
     firstpatch = None
     for i, (m, subj, ds) in enumerate(msgs):
         try:
             m['Message-Id'] = genmsgid(m['X-Mercurial-Node'])
             if not firstpatch:
                 firstpatch = m['Message-Id']
             m['X-Mercurial-Series-Id'] = firstpatch
         except TypeError:
             m['Message-Id'] = genmsgid('patchbomb')
         if parent:
             m['In-Reply-To'] = parent
             m['References'] = parent
         if not parent or 'X-Mercurial-Node' not in m:
             parent = m['Message-Id']
 
         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()
         else:
             if not sendmail:
                 verifycert = ui.config('smtp', 'verifycert')
                 if opts.get('insecure'):
                     ui.setconfig('smtp', 'verifycert', 'loose', 'patchbomb')
                 try:
                     sendmail = mail.connect(ui, mbox=mbox)
                 finally:
                     ui.setconfig('smtp', 'verifycert', verifycert, 'patchbomb')
             ui.status(_('sending '), subj, ' ...\n')
             ui.progress(_('sending'), i, item=subj, total=len(msgs))
             if not mbox:
                 # 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_addr, to + bcc + cc, fp.getvalue())
 
     ui.progress(_('writing'), None)
     ui.progress(_('sending'), None)

hgext/rebase.py

@@ -1,1074 +1,1074 b''
 # rebase.py - rebasing feature for mercurial
 #
 # Copyright 2008 Stefano Tortarolo <stefano.tortarolo at gmail dot com>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 '''command to move sets of revisions to a different ancestor
 
 This extension lets you rebase changesets in an existing Mercurial
 repository.
 
 For more information:
 http://mercurial.selenic.com/wiki/RebaseExtension
 '''
 
 from mercurial import hg, util, repair, merge, cmdutil, commands, bookmarks
 from mercurial import extensions, patch, scmutil, phases, obsolete, error
 from mercurial import copies
 from mercurial.commands import templateopts
 from mercurial.node import nullrev, nullid, hex, short
 from mercurial.lock import release
 from mercurial.i18n import _
 import os, errno
 
 revtodo = -1
 nullmerge = -2
 revignored = -3
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 def _savegraft(ctx, extra):
     s = ctx.extra().get('source', None)
     if s is not None:
         extra['source'] = s
 
 def _savebranch(ctx, extra):
     extra['branch'] = ctx.branch()
 
 def _makeextrafn(copiers):
     """make an extrafn out of the given copy-functions.
 
     A copy function takes a context and an extra dict, and mutates the
     extra dict as needed based on the given context.
     """
     def extrafn(ctx, extra):
         for c in copiers:
             c(ctx, extra)
     return extrafn
 
 @command('rebase',
     [('s', 'source', '',
      _('rebase the specified changeset and descendants'), _('REV')),
     ('b', 'base', '',
      _('rebase everything from branching point of specified changeset'),
      _('REV')),
     ('r', 'rev', [],
      _('rebase these revisions'),
      _('REV')),
     ('d', 'dest', '',
      _('rebase onto the specified changeset'), _('REV')),
     ('', 'collapse', False, _('collapse the rebased changesets')),
     ('m', 'message', '',
      _('use text as collapse commit message'), _('TEXT')),
     ('e', 'edit', False, _('invoke editor on commit messages')),
     ('l', 'logfile', '',
      _('read collapse commit message from file'), _('FILE')),
     ('', 'keep', False, _('keep original changesets')),
     ('', 'keepbranches', False, _('keep original branch names')),
     ('D', 'detach', False, _('(DEPRECATED)')),
     ('i', 'interactive', False, _('(DEPRECATED)')),
     ('t', 'tool', '', _('specify merge tool')),
     ('c', 'continue', False, _('continue an interrupted rebase')),
     ('a', 'abort', False, _('abort an interrupted rebase'))] +
      templateopts,
     _('[-s REV | -b REV] [-d REV] [OPTION]'))
 def rebase(ui, repo, **opts):
     """move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of
     history (the source) onto another (the destination). This can be
     useful for linearizing *local* changes relative to a master
     development tree.
 
     You should not rebase changesets that have already been shared
     with others. Doing so will force everybody else to perform the
     same rebase or they will end up with duplicated changesets after
     pulling in your rebased changesets.
 
     In its default configuration, Mercurial will prevent you from
     rebasing published changes. See :hg:`help phases` for details.
 
     If you don't specify a destination changeset (``-d/--dest``),
     rebase uses the current branch tip as the destination. (The
     destination changeset is not modified by rebasing, but new
     changesets are added as its descendants.)
 
     You can specify which changesets to rebase in two ways: as a
     "source" changeset or as a "base" changeset. Both are shorthand
     for a topologically related set of changesets (the "source
     branch"). If you specify source (``-s/--source``), rebase will
     rebase that changeset and all of its descendants onto dest. If you
     specify base (``-b/--base``), rebase will select ancestors of base
     back to but not including the common ancestor with dest. Thus,
     ``-b`` is less precise but more convenient than ``-s``: you can
     specify any changeset in the source branch, and rebase will select
     the whole branch. If you specify neither ``-s`` nor ``-b``, rebase
     uses the parent of the working directory as the base.
 
     For advanced usage, a third way is available through the ``--rev``
     option. It allows you to specify an arbitrary set of changesets to
     rebase. Descendants of revs you specify with this option are not
     automatically included in the rebase.
 
     By default, rebase recreates the changesets in the source branch
     as descendants of dest and then destroys the originals. Use
     ``--keep`` to preserve the original source changesets. Some
     changesets in the source branch (e.g. merges from the destination
     branch) may be dropped if they no longer contribute any change.
 
     One result of the rules for selecting the destination changeset
     and source branch is that, unlike ``merge``, rebase will do
     nothing if you are at the branch tip of a named branch
     with two heads. You need to explicitly specify source and/or
     destination (or ``update`` to the other head, if it's the head of
     the intended source branch).
 
     If a rebase is interrupted to manually resolve a merge, it can be
     continued with --continue/-c or aborted with --abort/-a.
 
     .. container:: verbose
 
       Examples:
 
       - move "local changes" (current commit back to branching point)
         to the current branch tip after a pull::
 
           hg rebase
 
       - move a single changeset to the stable branch::
 
           hg rebase -r 5f493448 -d stable
 
       - splice a commit and all its descendants onto another part of history::
 
           hg rebase --source c0c3 --dest 4cf9
 
       - rebase everything on a branch marked by a bookmark onto the
         default branch::
 
           hg rebase --base myfeature --dest default
 
       - collapse a sequence of changes into a single commit::
 
           hg rebase --collapse -r 1520:1525 -d .
 
       - move a named branch while preserving its name::
 
           hg rebase -r "branch(featureX)" -d 1.3 --keepbranches
 
     Returns 0 on success, 1 if nothing to rebase or there are
     unresolved conflicts.
 
     """
     originalwd = target = None
     activebookmark = None
     external = nullrev
     state = {}
     skipped = set()
     targetancestors = set()
 
 
     lock = wlock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
 
         # Validate input and define rebasing points
         destf = opts.get('dest', None)
         srcf = opts.get('source', None)
         basef = opts.get('base', None)
         revf = opts.get('rev', [])
         contf = opts.get('continue')
         abortf = opts.get('abort')
         collapsef = opts.get('collapse', False)
         collapsemsg = cmdutil.logmessage(ui, opts)
         e = opts.get('extrafn') # internal, used by e.g. hgsubversion
         extrafns = [_savegraft]
         if e:
             extrafns = [e]
         keepf = opts.get('keep', False)
         keepbranchesf = opts.get('keepbranches', False)
         # keepopen is not meant for use on the command line, but by
         # other extensions
         keepopen = opts.get('keepopen', False)
 
         if opts.get('interactive'):
             msg = _("interactive history editing is supported by the "
                     "'histedit' extension (see 'hg help histedit')")
             raise util.Abort(msg)
 
         if collapsemsg and not collapsef:
             raise util.Abort(
                 _('message can only be specified with collapse'))
 
         if contf or abortf:
             if contf and abortf:
                 raise util.Abort(_('cannot use both abort and continue'))
             if collapsef:
                 raise util.Abort(
                     _('cannot use collapse with continue or abort'))
             if srcf or basef or destf:
                 raise util.Abort(
                     _('abort and continue do not allow specifying revisions'))
             if opts.get('tool', False):
                 ui.warn(_('tool option will be ignored\n'))
 
             try:
                 (originalwd, target, state, skipped, collapsef, keepf,
                  keepbranchesf, external, activebookmark) = restorestatus(repo)
             except error.RepoLookupError:
                 if abortf:
                     clearstatus(repo)
                     repo.ui.warn(_('rebase aborted (no revision is removed,'
                                    ' only broken state is cleared)\n'))
                     return 0
                 else:
                     msg = _('cannot continue inconsistent rebase')
                     hint = _('use "hg rebase --abort" to clear broken state')
                     raise util.Abort(msg, hint=hint)
             if abortf:
                 return abort(repo, originalwd, target, state)
         else:
             if srcf and basef:
                 raise util.Abort(_('cannot specify both a '
                                    'source and a base'))
             if revf and basef:
                 raise util.Abort(_('cannot specify both a '
                                    'revision and a base'))
             if revf and srcf:
                 raise util.Abort(_('cannot specify both a '
                                    'revision and a source'))
 
             cmdutil.checkunfinished(repo)
             cmdutil.bailifchanged(repo)
 
             if not destf:
                 # Destination defaults to the latest revision in the
                 # current branch
                 branch = repo[None].branch()
                 dest = repo[branch]
             else:
                 dest = scmutil.revsingle(repo, destf)
 
             if revf:
                 rebaseset = scmutil.revrange(repo, revf)
                 if not rebaseset:
                     ui.status(_('empty "rev" revision set - '
                                 'nothing to rebase\n'))
                     return 1
             elif srcf:
                 src = scmutil.revrange(repo, [srcf])
                 if not src:
                     ui.status(_('empty "source" revision set - '
                                 'nothing to rebase\n'))
                     return 1
                 rebaseset = repo.revs('(%ld)::', src)
                 assert rebaseset
             else:
                 base = scmutil.revrange(repo, [basef or '.'])
                 if not base:
                     ui.status(_('empty "base" revision set - '
                                 "can't compute rebase set\n"))
                     return 1
                 commonanc = repo.revs('ancestor(%ld, %d)', base, dest).first()
                 if commonanc is not None:
                     rebaseset = repo.revs('(%d::(%ld) - %d)::',
                                           commonanc, base, commonanc)
                 else:
                     rebaseset = []
 
                 if not rebaseset:
                     # transform to list because smartsets are not comparable to
                     # lists. This should be improved to honor laziness of
                     # smartset.
                     if list(base) == [dest.rev()]:
                         if basef:
                             ui.status(_('nothing to rebase - %s is both "base"'
                                         ' and destination\n') % dest)
                         else:
                             ui.status(_('nothing to rebase - working directory '
                                         'parent is also destination\n'))
                     elif not repo.revs('%ld - ::%d', base, dest):
                         if basef:
                             ui.status(_('nothing to rebase - "base" %s is '
                                         'already an ancestor of destination '
                                         '%s\n') %
                                       ('+'.join(str(repo[r]) for r in base),
                                        dest))
                         else:
                             ui.status(_('nothing to rebase - working '
                                         'directory parent is already an '
                                         'ancestor of destination %s\n') % dest)
                     else: # can it happen?
                         ui.status(_('nothing to rebase from %s to %s\n') %
                                   ('+'.join(str(repo[r]) for r in base), dest))
                     return 1
 
             allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
             if (not (keepf or allowunstable)
                   and repo.revs('first(children(%ld) - %ld)',
                                 rebaseset, rebaseset)):
                 raise util.Abort(
                     _("can't remove original changesets with"
                       " unrebased descendants"),
                     hint=_('use --keep to keep original changesets'))
 
             result = buildstate(repo, dest, rebaseset, collapsef)
             if not result:
                 # Empty state built, nothing to rebase
                 ui.status(_('nothing to rebase\n'))
                 return 1
 
             root = min(rebaseset)
             if not keepf and not repo[root].mutable():
                 raise util.Abort(_("can't rebase immutable changeset %s")
                                  % repo[root],
                                  hint=_('see hg help phases for details'))
 
             originalwd, target, state = result
             if collapsef:
                 targetancestors = repo.changelog.ancestors([target],
                                                            inclusive=True)
                 external = externalparent(repo, state, targetancestors)
 
             if dest.closesbranch() and not keepbranchesf:
                 ui.status(_('reopening closed branch head %s\n') % dest)
 
         if keepbranchesf:
             # insert _savebranch at the start of extrafns so if
             # there's a user-provided extrafn it can clobber branch if
             # desired
             extrafns.insert(0, _savebranch)
             if collapsef:
                 branches = set()
                 for rev in state:
                     branches.add(repo[rev].branch())
                     if len(branches) > 1:
                         raise util.Abort(_('cannot collapse multiple named '
                             'branches'))
 
         # Rebase
         if not targetancestors:
             targetancestors = repo.changelog.ancestors([target], inclusive=True)
 
         # Keep track of the current bookmarks in order to reset them later
         currentbookmarks = repo._bookmarks.copy()
         activebookmark = activebookmark or repo._bookmarkcurrent
         if activebookmark:
             bookmarks.unsetcurrent(repo)
 
         extrafn = _makeextrafn(extrafns)
 
         sortedstate = sorted(state)
         total = len(sortedstate)
         pos = 0
         for rev in sortedstate:
             ctx = repo[rev]
             desc = '%d:%s "%s"' % (ctx.rev(), ctx,
                                    ctx.description().split('\n', 1)[0])
             names = repo.nodetags(ctx.node()) + repo.nodebookmarks(ctx.node())
             if names:
                 desc += ' (%s)' % ' '.join(names)
             pos += 1
             if state[rev] == revtodo:
                 ui.status(_('rebasing %s\n') % desc)
                 ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, ctx)),
                             _('changesets'), total)
                 p1, p2, base = defineparents(repo, rev, target, state,
                                              targetancestors)
                 storestatus(repo, originalwd, target, state, collapsef, keepf,
                             keepbranchesf, external, activebookmark)
                 if len(repo.parents()) == 2:
                     repo.ui.debug('resuming interrupted rebase\n')
                 else:
                     try:
                         ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                                      'rebase')
                         stats = rebasenode(repo, rev, p1, base, state,
                                            collapsef, target)
                         if stats and stats[3] > 0:
                             raise error.InterventionRequired(
                                 _('unresolved conflicts (see hg '
                                   'resolve, then hg rebase --continue)'))
                     finally:
                         ui.setconfig('ui', 'forcemerge', '', 'rebase')
                 if not collapsef:
                     merging = p2 != nullrev
                     editform = cmdutil.mergeeditform(merging, 'rebase')
                     editor = cmdutil.getcommiteditor(editform=editform, **opts)
                     newnode = concludenode(repo, rev, p1, p2, extrafn=extrafn,
                                            editor=editor)
                 else:
                     # Skip commit if we are collapsing
                     repo.dirstate.beginparentchange()
                     repo.setparents(repo[p1].node())
                     repo.dirstate.endparentchange()
                     newnode = None
                 # Update the state
                 if newnode is not None:
                     state[rev] = repo[newnode].rev()
                     ui.debug('rebased as %s\n' % short(newnode))
                 else:
                     ui.warn(_('note: rebase of %d:%s created no changes '
                               'to commit\n') % (rev, ctx))
                     if not collapsef:
                         skipped.add(rev)
                     state[rev] = p1
                     ui.debug('next revision set to %s\n' % p1)
             elif state[rev] == nullmerge:
                 ui.debug('ignoring null merge rebase of %s\n' % rev)
             elif state[rev] == revignored:
                 ui.status(_('not rebasing ignored %s\n') % desc)
             else:
                 ui.status(_('already rebased %s as %s\n') %
                           (desc, repo[state[rev]]))
 
         ui.progress(_('rebasing'), None)
         ui.note(_('rebase merging completed\n'))
 
         if collapsef and not keepopen:
             p1, p2, _base = defineparents(repo, min(state), target,
                                           state, targetancestors)
             editopt = opts.get('edit')
             editform = 'rebase.collapse'
             if collapsemsg:
                 commitmsg = collapsemsg
             else:
                 commitmsg = 'Collapsed revision'
                 for rebased in state:
                     if rebased not in skipped and state[rebased] > nullmerge:
                         commitmsg += '\n* %s' % repo[rebased].description()
                 editopt = True
             editor = cmdutil.getcommiteditor(edit=editopt, editform=editform)
             newnode = concludenode(repo, rev, p1, external, commitmsg=commitmsg,
                                    extrafn=extrafn, editor=editor)
             if newnode is None:
                 newrev = target
             else:
                 newrev = repo[newnode].rev()
             for oldrev in state.iterkeys():
                 if state[oldrev] > nullmerge:
                     state[oldrev] = newrev
 
         if 'qtip' in repo.tags():
             updatemq(repo, state, skipped, **opts)
 
         if currentbookmarks:
             # Nodeids are needed to reset bookmarks
             nstate = {}
             for k, v in state.iteritems():
                 if v > nullmerge:
                     nstate[repo[k].node()] = repo[v].node()
             # XXX this is the same as dest.node() for the non-continue path --
             # this should probably be cleaned up
             targetnode = repo[target].node()
 
         # restore original working directory
         # (we do this before stripping)
         newwd = state.get(originalwd, originalwd)
         if newwd < 0:
             # original directory is a parent of rebase set root or ignored
             newwd = originalwd
         if newwd not in [c.rev() for c in repo[None].parents()]:
             ui.note(_("update back to initial working directory parent\n"))
             hg.updaterepo(repo, newwd, False)
 
         if not keepf:
             collapsedas = None
             if collapsef:
                 collapsedas = newnode
             clearrebased(ui, repo, state, skipped, collapsedas)
 
         if currentbookmarks:
             updatebookmarks(repo, targetnode, nstate, currentbookmarks)
             if activebookmark not in repo._bookmarks:
                 # active bookmark was divergent one and has been deleted
                 activebookmark = None
 
         clearstatus(repo)
         ui.note(_("rebase completed\n"))
         util.unlinkpath(repo.sjoin('undo'), ignoremissing=True)
         if skipped:
             ui.note(_("%d revisions have been skipped\n") % len(skipped))
 
         if (activebookmark and
             repo['.'].node() == repo._bookmarks[activebookmark]):
                 bookmarks.setcurrent(repo, activebookmark)
 
     finally:
         release(lock, wlock)
 
 def externalparent(repo, state, targetancestors):
     """Return the revision that should be used as the second parent
     when the revisions in state is collapsed on top of targetancestors.
     Abort if there is more than one parent.
     """
     parents = set()
     source = min(state)
     for rev in state:
         if rev == source:
             continue
         for p in repo[rev].parents():
             if (p.rev() not in state
                         and p.rev() not in targetancestors):
                 parents.add(p.rev())
     if not parents:
         return nullrev
     if len(parents) == 1:
         return parents.pop()
     raise util.Abort(_('unable to collapse on top of %s, there is more '
                        'than one external parent: %s') %
                      (max(targetancestors),
                       ', '.join(str(p) for p in sorted(parents))))
 
 def concludenode(repo, rev, p1, p2, commitmsg=None, editor=None, extrafn=None):
     '''Commit the wd changes with parents p1 and p2. Reuse commit info from rev
     but also store useful information in extra.
     Return node of committed revision.'''
     try:
         repo.dirstate.beginparentchange()
         repo.setparents(repo[p1].node(), repo[p2].node())
         repo.dirstate.endparentchange()
         ctx = repo[rev]
         if commitmsg is None:
             commitmsg = ctx.description()
         extra = {'rebase_source': ctx.hex()}
         if extrafn:
             extrafn(ctx, extra)
 
         backup = repo.ui.backupconfig('phases', 'new-commit')
         try:
             targetphase = max(ctx.phase(), phases.draft)
             repo.ui.setconfig('phases', 'new-commit', targetphase, 'rebase')
             # Commit might fail if unresolved files exist
             newnode = repo.commit(text=commitmsg, user=ctx.user(),
                                   date=ctx.date(), extra=extra, editor=editor)
         finally:
             repo.ui.restoreconfig(backup)
 
         repo.dirstate.setbranch(repo[newnode].branch())
         return newnode
     except util.Abort:
         # Invalidate the previous setparents
         repo.dirstate.invalidate()
         raise
 
 def rebasenode(repo, rev, p1, base, state, collapse, target):
     'Rebase a single revision rev on top of p1 using base as merge ancestor'
     # Merge phase
     # Update to target and merge it with local
     if repo['.'].rev() != p1:
         repo.ui.debug(" update to %d:%s\n" % (p1, repo[p1]))
         merge.update(repo, p1, False, True, False)
     else:
         repo.ui.debug(" already in target\n")
     repo.dirstate.write()
     repo.ui.debug(" merge against %d:%s\n" % (rev, repo[rev]))
     if base is not None:
         repo.ui.debug("   detach base %d:%s\n" % (base, repo[base]))
     # When collapsing in-place, the parent is the common ancestor, we
     # have to allow merging with it.
     stats = merge.update(repo, rev, True, True, False, base, collapse,
                         labels=['dest', 'source'])
     if collapse:
         copies.duplicatecopies(repo, rev, target)
     else:
         # If we're not using --collapse, we need to
         # duplicate copies between the revision we're
         # rebasing and its first parent, but *not*
         # duplicate any copies that have already been
         # performed in the destination.
         p1rev = repo[rev].p1().rev()
         copies.duplicatecopies(repo, rev, p1rev, skiprev=target)
     return stats
 
 def nearestrebased(repo, rev, state):
     """return the nearest ancestors of rev in the rebase result"""
     rebased = [r for r in state if state[r] > nullmerge]
     candidates = repo.revs('max(%ld  and (::%d))', rebased, rev)
     if candidates:
         return state[candidates.first()]
     else:
         return None
 
 def defineparents(repo, rev, target, state, targetancestors):
     'Return the new parent relationship of the revision that will be rebased'
     parents = repo[rev].parents()
     p1 = p2 = nullrev
 
     p1n = parents[0].rev()
     if p1n in targetancestors:
         p1 = target
     elif p1n in state:
         if state[p1n] == nullmerge:
             p1 = target
         elif state[p1n] == revignored:
             p1 = nearestrebased(repo, p1n, state)
             if p1 is None:
                 p1 = target
         else:
             p1 = state[p1n]
     else: # p1n external
         p1 = target
         p2 = p1n
 
     if len(parents) == 2 and parents[1].rev() not in targetancestors:
         p2n = parents[1].rev()
         # interesting second parent
         if p2n in state:
             if p1 == target: # p1n in targetancestors or external
                 p1 = state[p2n]
             elif state[p2n] == revignored:
                 p2 = nearestrebased(repo, p2n, state)
                 if p2 is None:
                     # no ancestors rebased yet, detach
                     p2 = target
             else:
                 p2 = state[p2n]
         else: # p2n external
             if p2 != nullrev: # p1n external too => rev is a merged revision
                 raise util.Abort(_('cannot use revision %d as base, result '
                         'would have 3 parents') % rev)
             p2 = p2n
     repo.ui.debug(" future parents are %d and %d\n" %
                             (repo[p1].rev(), repo[p2].rev()))
 
     if rev == min(state):
         # Case (1) initial changeset of a non-detaching rebase.
         # Let the merge mechanism find the base itself.
         base = None
     elif not repo[rev].p2():
         # Case (2) detaching the node with a single parent, use this parent
         base = repo[rev].p1().rev()
     else:
         # Assuming there is a p1, this is the case where there also is a p2.
         # We are thus rebasing a merge and need to pick the right merge base.
         #
         # Imagine we have:
         # - M: current rebase revision in this step
         # - A: one parent of M
         # - B: other parent of M
         # - D: destination of this merge step (p1 var)
         #
         # Consider the case where D is a descendant of A or B and the other is
         # 'outside'. In this case, the right merge base is the D ancestor.
         #
         # An informal proof, assuming A is 'outside' and B is the D ancestor:
         #
         # If we pick B as the base, the merge involves:
         # - changes from B to M (actual changeset payload)
         # - changes from B to D (induced by rebase) as D is a rebased
         #   version of B)
         # Which exactly represent the rebase operation.
         #
         # If we pick A as the base, the merge involves:
         # - changes from A to M (actual changeset payload)
         # - changes from A to D (with include changes between unrelated A and B
         #   plus changes induced by rebase)
         # Which does not represent anything sensible and creates a lot of
         # conflicts. A is thus not the right choice - B is.
         #
         # Note: The base found in this 'proof' is only correct in the specified
         # case. This base does not make sense if is not D a descendant of A or B
         # or if the other is not parent 'outside' (especially not if the other
         # parent has been rebased). The current implementation does not
         # make it feasible to consider different cases separately. In these
         # other cases we currently just leave it to the user to correctly
         # resolve an impossible merge using a wrong ancestor.
         for p in repo[rev].parents():
             if state.get(p.rev()) == p1:
                 base = p.rev()
                 break
         else: # fallback when base not found
             base = None
 
             # Raise because this function is called wrong (see issue 4106)
             raise AssertionError('no base found to rebase on '
                                  '(defineparents called wrong)')
     return p1, p2, base
 
 def isagitpatch(repo, patchname):
     'Return true if the given patch is in git format'
     mqpatch = os.path.join(repo.mq.path, patchname)
     for line in patch.linereader(file(mqpatch, 'rb')):
         if line.startswith('diff --git'):
             return True
     return False
 
 def updatemq(repo, state, skipped, **opts):
     'Update rebased mq patches - finalize and then import them'
     mqrebase = {}
     mq = repo.mq
     original_series = mq.fullseries[:]
     skippedpatches = set()
 
     for p in mq.applied:
         rev = repo[p.node].rev()
         if rev in state:
             repo.ui.debug('revision %d is an mq patch (%s), finalize it.\n' %
                                         (rev, p.name))
             mqrebase[rev] = (p.name, isagitpatch(repo, p.name))
         else:
             # Applied but not rebased, not sure this should happen
             skippedpatches.add(p.name)
 
     if mqrebase:
         mq.finish(repo, mqrebase.keys())
 
         # We must start import from the newest revision
         for rev in sorted(mqrebase, reverse=True):
             if rev not in skipped:
                 name, isgit = mqrebase[rev]
                 repo.ui.note(_('updating mq patch %s to %s:%s\n') %
                              (name, state[rev], repo[state[rev]]))
                 mq.qimport(repo, (), patchname=name, git=isgit,
                                 rev=[str(state[rev])])
             else:
                 # Rebased and skipped
                 skippedpatches.add(mqrebase[rev][0])
 
         # Patches were either applied and rebased and imported in
         # order, applied and removed or unapplied. Discard the removed
         # ones while preserving the original series order and guards.
         newseries = [s for s in original_series
                      if mq.guard_re.split(s, 1)[0] not in skippedpatches]
         mq.fullseries[:] = newseries
         mq.seriesdirty = True
         mq.savedirty()
 
 def updatebookmarks(repo, targetnode, nstate, originalbookmarks):
     'Move bookmarks to their correct changesets, and delete divergent ones'
     marks = repo._bookmarks
     for k, v in originalbookmarks.iteritems():
         if v in nstate:
             # update the bookmarks for revs that have moved
             marks[k] = nstate[v]
             bookmarks.deletedivergent(repo, [targetnode], k)
 
     marks.write()
 
 def storestatus(repo, originalwd, target, state, collapse, keep, keepbranches,
                 external, activebookmark):
     'Store the current status to allow recovery'
-    f = repo.opener("rebasestate", "w")
+    f = repo.vfs("rebasestate", "w")
     f.write(repo[originalwd].hex() + '\n')
     f.write(repo[target].hex() + '\n')
     f.write(repo[external].hex() + '\n')
     f.write('%d\n' % int(collapse))
     f.write('%d\n' % int(keep))
     f.write('%d\n' % int(keepbranches))
     f.write('%s\n' % (activebookmark or ''))
     for d, v in state.iteritems():
         oldrev = repo[d].hex()
         if v >= 0:
             newrev = repo[v].hex()
         elif v == revtodo:
             # To maintain format compatibility, we have to use nullid.
             # Please do remove this special case when upgrading the format.
             newrev = hex(nullid)
         else:
             newrev = v
         f.write("%s:%s\n" % (oldrev, newrev))
     f.close()
     repo.ui.debug('rebase status stored\n')
 
 def clearstatus(repo):
     'Remove the status files'
     util.unlinkpath(repo.join("rebasestate"), ignoremissing=True)
 
 def restorestatus(repo):
     'Restore a previously stored status'
     try:
         keepbranches = None
         target = None
         collapse = False
         external = nullrev
         activebookmark = None
         state = {}
-        f = repo.opener("rebasestate")
+        f = repo.vfs("rebasestate")
         for i, l in enumerate(f.read().splitlines()):
             if i == 0:
                 originalwd = repo[l].rev()
             elif i == 1:
                 target = repo[l].rev()
             elif i == 2:
                 external = repo[l].rev()
             elif i == 3:
                 collapse = bool(int(l))
             elif i == 4:
                 keep = bool(int(l))
             elif i == 5:
                 keepbranches = bool(int(l))
             elif i == 6 and not (len(l) == 81 and ':' in l):
                 # line 6 is a recent addition, so for backwards compatibility
                 # check that the line doesn't look like the oldrev:newrev lines
                 activebookmark = l
             else:
                 oldrev, newrev = l.split(':')
                 if newrev in (str(nullmerge), str(revignored)):
                     state[repo[oldrev].rev()] = int(newrev)
                 elif newrev == nullid:
                     state[repo[oldrev].rev()] = revtodo
                     # Legacy compat special case
                 else:
                     state[repo[oldrev].rev()] = repo[newrev].rev()
 
         if keepbranches is None:
             raise util.Abort(_('.hg/rebasestate is incomplete'))
 
         skipped = set()
         # recompute the set of skipped revs
         if not collapse:
             seen = set([target])
             for old, new in sorted(state.items()):
                 if new != revtodo and new in seen:
                     skipped.add(old)
                 seen.add(new)
         repo.ui.debug('computed skipped revs: %s\n' %
                       (' '.join(str(r) for r in sorted(skipped)) or None))
         repo.ui.debug('rebase status resumed\n')
         return (originalwd, target, state, skipped,
                 collapse, keep, keepbranches, external, activebookmark)
     except IOError, err:
         if err.errno != errno.ENOENT:
             raise
         raise util.Abort(_('no rebase in progress'))
 
 def inrebase(repo, originalwd, state):
     '''check whether the working dir is in an interrupted rebase'''
     parents = [p.rev() for p in repo.parents()]
     if originalwd in parents:
         return True
 
     for newrev in state.itervalues():
         if newrev in parents:
             return True
 
     return False
 
 def abort(repo, originalwd, target, state):
     'Restore the repository to its original state'
     dstates = [s for s in state.values() if s >= 0]
     immutable = [d for d in dstates if not repo[d].mutable()]
     cleanup = True
     if immutable:
         repo.ui.warn(_("warning: can't clean up immutable changesets %s\n")
                      % ', '.join(str(repo[r]) for r in immutable),
                      hint=_('see hg help phases for details'))
         cleanup = False
 
     descendants = set()
     if dstates:
         descendants = set(repo.changelog.descendants(dstates))
     if descendants - set(dstates):
         repo.ui.warn(_("warning: new changesets detected on target branch, "
                        "can't strip\n"))
         cleanup = False
 
     if cleanup:
         # Update away from the rebase if necessary
         if inrebase(repo, originalwd, state):
             merge.update(repo, originalwd, False, True, False)
 
         # Strip from the first rebased revision
         rebased = filter(lambda x: x >= 0 and x != target, state.values())
         if rebased:
             strippoints = [c.node()  for c in repo.set('roots(%ld)', rebased)]
             # no backup of rebased cset versions needed
             repair.strip(repo.ui, repo, strippoints)
 
     clearstatus(repo)
     repo.ui.warn(_('rebase aborted\n'))
     return 0
 
 def buildstate(repo, dest, rebaseset, collapse):
     '''Define which revisions are going to be rebased and where
 
     repo: repo
     dest: context
     rebaseset: set of rev
     '''
 
     # This check isn't strictly necessary, since mq detects commits over an
     # applied patch. But it prevents messing up the working directory when
     # a partially completed rebase is blocked by mq.
     if 'qtip' in repo.tags() and (dest.node() in
                             [s.node for s in repo.mq.applied]):
         raise util.Abort(_('cannot rebase onto an applied mq patch'))
 
     roots = list(repo.set('roots(%ld)', rebaseset))
     if not roots:
         raise util.Abort(_('no matching revisions'))
     roots.sort()
     state = {}
     detachset = set()
     for root in roots:
         commonbase = root.ancestor(dest)
         if commonbase == root:
             raise util.Abort(_('source is ancestor of destination'))
         if commonbase == dest:
             samebranch = root.branch() == dest.branch()
             if not collapse and samebranch and root in dest.children():
                 repo.ui.debug('source is a child of destination\n')
                 return None
 
         repo.ui.debug('rebase onto %d starting from %s\n' % (dest, root))
         state.update(dict.fromkeys(rebaseset, revtodo))
         # Rebase tries to turn <dest> into a parent of <root> while
         # preserving the number of parents of rebased changesets:
         #
         # - A changeset with a single parent will always be rebased as a
         #   changeset with a single parent.
         #
         # - A merge will be rebased as merge unless its parents are both
         #   ancestors of <dest> or are themselves in the rebased set and
         #   pruned while rebased.
         #
         # If one parent of <root> is an ancestor of <dest>, the rebased
         # version of this parent will be <dest>. This is always true with
         # --base option.
         #
         # Otherwise, we need to *replace* the original parents with
         # <dest>. This "detaches" the rebased set from its former location
         # and rebases it onto <dest>. Changes introduced by ancestors of
         # <root> not common with <dest> (the detachset, marked as
         # nullmerge) are "removed" from the rebased changesets.
         #
         # - If <root> has a single parent, set it to <dest>.
         #
         # - If <root> is a merge, we cannot decide which parent to
         #   replace, the rebase operation is not clearly defined.
         #
         # The table below sums up this behavior:
         #
         # +------------------+----------------------+-------------------------+
         # |                  |     one parent       |  merge                  |
         # +------------------+----------------------+-------------------------+
         # | parent in        | new parent is <dest> | parents in ::<dest> are |
         # | ::<dest>         |                      | remapped to <dest>      |
         # +------------------+----------------------+-------------------------+
         # | unrelated source | new parent is <dest> | ambiguous, abort        |
         # +------------------+----------------------+-------------------------+
         #
         # The actual abort is handled by `defineparents`
         if len(root.parents()) <= 1:
             # ancestors of <root> not ancestors of <dest>
             detachset.update(repo.changelog.findmissingrevs([commonbase.rev()],
                                                             [root.rev()]))
     for r in detachset:
         if r not in state:
             state[r] = nullmerge
     if len(roots) > 1:
         # If we have multiple roots, we may have "hole" in the rebase set.
         # Rebase roots that descend from those "hole" should not be detached as
         # other root are. We use the special `revignored` to inform rebase that
         # the revision should be ignored but that `defineparents` should search
         # a rebase destination that make sense regarding rebased topology.
         rebasedomain = set(repo.revs('%ld::%ld', rebaseset, rebaseset))
         for ignored in set(rebasedomain) - set(rebaseset):
             state[ignored] = revignored
     return repo['.'].rev(), dest.rev(), state
 
 def clearrebased(ui, repo, state, skipped, collapsedas=None):
     """dispose of rebased revision at the end of the rebase
 
     If `collapsedas` is not None, the rebase was a collapse whose result if the
     `collapsedas` node."""
     if obsolete.isenabled(repo, obsolete.createmarkersopt):
         markers = []
         for rev, newrev in sorted(state.items()):
             if newrev >= 0:
                 if rev in skipped:
                     succs = ()
                 elif collapsedas is not None:
                     succs = (repo[collapsedas],)
                 else:
                     succs = (repo[newrev],)
                 markers.append((repo[rev], succs))
         if markers:
             obsolete.createmarkers(repo, markers)
     else:
         rebased = [rev for rev in state if state[rev] > nullmerge]
         if rebased:
             stripped = []
             for root in repo.set('roots(%ld)', rebased):
                 if set(repo.changelog.descendants([root.rev()])) - set(state):
                     ui.warn(_("warning: new changesets detected "
                               "on source branch, not stripping\n"))
                 else:
                     stripped.append(root.node())
             if stripped:
                 # backup the old csets by default
                 repair.strip(ui, repo, stripped, "all")
 
 
 def pullrebase(orig, ui, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'
     if opts.get('rebase'):
         if opts.get('update'):
             del opts['update']
             ui.debug('--update and --rebase are not compatible, ignoring '
                      'the update flag\n')
 
         movemarkfrom = repo['.'].node()
         revsprepull = len(repo)
         origpostincoming = commands.postincoming
         def _dummy(*args, **kwargs):
             pass
         commands.postincoming = _dummy
         try:
             orig(ui, repo, *args, **opts)
         finally:
             commands.postincoming = origpostincoming
         revspostpull = len(repo)
         if revspostpull > revsprepull:
             # --rev option from pull conflict with rebase own --rev
             # dropping it
             if 'rev' in opts:
                 del opts['rev']
             rebase(ui, repo, **opts)
             branch = repo[None].branch()
             dest = repo[branch].rev()
             if dest != repo['.'].rev():
                 # there was nothing to rebase we force an update
                 hg.update(repo, dest)
                 if bookmarks.update(repo, [movemarkfrom], repo['.'].node()):
                     ui.status(_("updating bookmark %s\n")
                               % repo._bookmarkcurrent)
     else:
         if opts.get('tool'):
             raise util.Abort(_('--tool can only be used with --rebase'))
         orig(ui, repo, *args, **opts)
 
 def summaryhook(ui, repo):
     if not os.path.exists(repo.join('rebasestate')):
         return
     try:
         state = restorestatus(repo)[2]
     except error.RepoLookupError:
         # i18n: column positioning for "hg summary"
         msg = _('rebase: (use "hg rebase --abort" to clear broken state)\n')
         ui.write(msg)
         return
     numrebased = len([i for i in state.itervalues() if i >= 0])
     # i18n: column positioning for "hg summary"
     ui.write(_('rebase: %s, %s (rebase --continue)\n') %
              (ui.label(_('%d rebased'), 'rebase.rebased') % numrebased,
               ui.label(_('%d remaining'), 'rebase.remaining') %
               (len(state) - numrebased)))
 
 def uisetup(ui):
     'Replace pull with a decorator to provide --rebase option'
     entry = extensions.wrapcommand(commands.table, 'pull', pullrebase)
     entry[1].append(('', 'rebase', None,
                      _("rebase working directory to branch head")))
     entry[1].append(('t', 'tool', '',
                      _("specify merge tool for rebase")))
     cmdutil.summaryhooks.add('rebase', summaryhook)
     cmdutil.unfinishedstates.append(
         ['rebasestate', False, False, _('rebase in progress'),
          _("use 'hg rebase --continue' or 'hg rebase --abort'")])

hgext/shelve.py

@@ -1,721 +1,721 b''
 # shelve.py - save/restore working directory state
 #
 # Copyright 2013 Facebook, Inc.
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 """save and restore changes to the working directory
 
 The "hg shelve" command saves changes made to the working directory
 and reverts those changes, resetting the working directory to a clean
 state.
 
 Later on, the "hg unshelve" command restores the changes saved by "hg
 shelve". Changes can be restored even after updating to a different
 parent, in which case Mercurial's merge machinery will resolve any
 conflicts if necessary.
 
 You can have more than one shelved change outstanding at a time; each
 shelved change has a distinct name. For details, see the help for "hg
 shelve".
 """
 
 from mercurial.i18n import _
 from mercurial.node import nullid, nullrev, bin, hex
 from mercurial import changegroup, cmdutil, scmutil, phases, commands
 from mercurial import error, hg, mdiff, merge, patch, repair, util
 from mercurial import templatefilters, exchange, bundlerepo
 from mercurial import lock as lockmod
 from hgext import rebase
 import errno
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 testedwith = 'internal'
 
 class shelvedfile(object):
     """Helper for the file storing a single shelve
 
     Handles common functions on shelve files (.hg/.patch) using
     the vfs layer"""
     def __init__(self, repo, name, filetype=None):
         self.repo = repo
         self.name = name
         self.vfs = scmutil.vfs(repo.join('shelved'))
         if filetype:
             self.fname = name + '.' + filetype
         else:
             self.fname = name
 
     def exists(self):
         return self.vfs.exists(self.fname)
 
     def filename(self):
         return self.vfs.join(self.fname)
 
     def unlink(self):
         util.unlink(self.filename())
 
     def stat(self):
         return self.vfs.stat(self.fname)
 
     def opener(self, mode='rb'):
         try:
             return self.vfs(self.fname, mode)
         except IOError, err:
             if err.errno != errno.ENOENT:
                 raise
             raise util.Abort(_("shelved change '%s' not found") % self.name)
 
     def applybundle(self):
         fp = self.opener()
         try:
             gen = exchange.readbundle(self.repo.ui, fp, self.fname, self.vfs)
             changegroup.addchangegroup(self.repo, gen, 'unshelve',
                                        'bundle:' + self.vfs.join(self.fname),
                                        targetphase=phases.secret)
         finally:
             fp.close()
 
     def bundlerepo(self):
         return bundlerepo.bundlerepository(self.repo.baseui, self.repo.root,
                                            self.vfs.join(self.fname))
     def writebundle(self, cg):
         changegroup.writebundle(cg, self.fname, 'HG10UN', self.vfs)
 
 class shelvedstate(object):
     """Handle persistence during unshelving operations.
 
     Handles saving and restoring a shelved state. Ensures that different
     versions of a shelved state are possible and handles them appropriately.
     """
     _version = 1
     _filename = 'shelvedstate'
 
     @classmethod
     def load(cls, repo):
-        fp = repo.opener(cls._filename)
+        fp = repo.vfs(cls._filename)
         try:
             version = int(fp.readline().strip())
 
             if version != cls._version:
                 raise util.Abort(_('this version of shelve is incompatible '
                                    'with the version used in this repo'))
             name = fp.readline().strip()
             wctx = fp.readline().strip()
             pendingctx = fp.readline().strip()
             parents = [bin(h) for h in fp.readline().split()]
             stripnodes = [bin(h) for h in fp.readline().split()]
         finally:
             fp.close()
 
         obj = cls()
         obj.name = name
         obj.wctx = repo[bin(wctx)]
         obj.pendingctx = repo[bin(pendingctx)]
         obj.parents = parents
         obj.stripnodes = stripnodes
 
         return obj
 
     @classmethod
     def save(cls, repo, name, originalwctx, pendingctx, stripnodes):
-        fp = repo.opener(cls._filename, 'wb')
+        fp = repo.vfs(cls._filename, 'wb')
         fp.write('%i\n' % cls._version)
         fp.write('%s\n' % name)
         fp.write('%s\n' % hex(originalwctx.node()))
         fp.write('%s\n' % hex(pendingctx.node()))
         fp.write('%s\n' % ' '.join([hex(p) for p in repo.dirstate.parents()]))
         fp.write('%s\n' % ' '.join([hex(n) for n in stripnodes]))
         fp.close()
 
     @classmethod
     def clear(cls, repo):
         util.unlinkpath(repo.join(cls._filename), ignoremissing=True)
 
 def createcmd(ui, repo, pats, opts):
     """subcommand that creates a new shelve"""
 
     def publicancestors(ctx):
         """Compute the public ancestors of a commit.
 
         Much faster than the revset ancestors(ctx) & draft()"""
         seen = set([nullrev])
         visit = util.deque()
         visit.append(ctx)
         while visit:
             ctx = visit.popleft()
             yield ctx.node()
             for parent in ctx.parents():
                 rev = parent.rev()
                 if rev not in seen:
                     seen.add(rev)
                     if parent.mutable():
                         visit.append(parent)
 
     wctx = repo[None]
     parents = wctx.parents()
     if len(parents) > 1:
         raise util.Abort(_('cannot shelve while merging'))
     parent = parents[0]
 
     # we never need the user, so we use a generic user for all shelve operations
     user = 'shelve@localhost'
     label = repo._bookmarkcurrent or parent.branch() or 'default'
 
     # slashes aren't allowed in filenames, therefore we rename it
     label = label.replace('/', '_')
 
     def gennames():
         yield label
         for i in xrange(1, 100):
             yield '%s-%02d' % (label, i)
 
     def commitfunc(ui, repo, message, match, opts):
         hasmq = util.safehasattr(repo, 'mq')
         if hasmq:
             saved, repo.mq.checkapplied = repo.mq.checkapplied, False
         backup = repo.ui.backupconfig('phases', 'new-commit')
         try:
             repo.ui. setconfig('phases', 'new-commit', phases.secret)
             editor = cmdutil.getcommiteditor(editform='shelve.shelve', **opts)
             return repo.commit(message, user, opts.get('date'), match,
                                editor=editor)
         finally:
             repo.ui.restoreconfig(backup)
             if hasmq:
                 repo.mq.checkapplied = saved
 
     if parent.node() != nullid:
         desc = "changes to '%s'" % parent.description().split('\n', 1)[0]
     else:
         desc = '(changes in empty repository)'
 
     if not opts['message']:
         opts['message'] = desc
 
     name = opts['name']
 
     wlock = lock = tr = bms = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
 
         bms = repo._bookmarks.copy()
         # use an uncommitted transaction to generate the bundle to avoid
         # pull races. ensure we don't print the abort message to stderr.
         tr = repo.transaction('commit', report=lambda x: None)
 
         if name:
             if shelvedfile(repo, name, 'hg').exists():
                 raise util.Abort(_("a shelved change named '%s' already exists")
                                  % name)
         else:
             for n in gennames():
                 if not shelvedfile(repo, n, 'hg').exists():
                     name = n
                     break
             else:
                 raise util.Abort(_("too many shelved changes named '%s'") %
                                  label)
 
         # ensure we are not creating a subdirectory or a hidden file
         if '/' in name or '\\' in name:
             raise util.Abort(_('shelved change names may not contain slashes'))
         if name.startswith('.'):
             raise util.Abort(_("shelved change names may not start with '.'"))
 
         node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
 
         if not node:
             stat = repo.status(match=scmutil.match(repo[None], pats, opts))
             if stat.deleted:
                 ui.status(_("nothing changed (%d missing files, see "
                             "'hg status')\n") % len(stat.deleted))
             else:
                 ui.status(_("nothing changed\n"))
             return 1
 
         bases = list(publicancestors(repo[node]))
         cg = changegroup.changegroupsubset(repo, bases, [node], 'shelve')
         shelvedfile(repo, name, 'hg').writebundle(cg)
         cmdutil.export(repo, [node],
                        fp=shelvedfile(repo, name, 'patch').opener('wb'),
                        opts=mdiff.diffopts(git=True))
 
 
         if ui.formatted():
             desc = util.ellipsis(desc, ui.termwidth())
         ui.status(_('shelved as %s\n') % name)
         hg.update(repo, parent.node())
     finally:
         if bms:
             # restore old bookmarks
             repo._bookmarks.update(bms)
             repo._bookmarks.write()
         if tr:
             tr.abort()
         lockmod.release(lock, wlock)
 
 def cleanupcmd(ui, repo):
     """subcommand that deletes all shelves"""
 
     wlock = None
     try:
         wlock = repo.wlock()
         for (name, _type) in repo.vfs.readdir('shelved'):
             suffix = name.rsplit('.', 1)[-1]
             if suffix in ('hg', 'patch'):
                 shelvedfile(repo, name).unlink()
     finally:
         lockmod.release(wlock)
 
 def deletecmd(ui, repo, pats):
     """subcommand that deletes a specific shelve"""
     if not pats:
         raise util.Abort(_('no shelved changes specified!'))
     wlock = None
     try:
         wlock = repo.wlock()
         try:
             for name in pats:
                 for suffix in 'hg patch'.split():
                     shelvedfile(repo, name, suffix).unlink()
         except OSError, err:
             if err.errno != errno.ENOENT:
                 raise
             raise util.Abort(_("shelved change '%s' not found") % name)
     finally:
         lockmod.release(wlock)
 
 def listshelves(repo):
     """return all shelves in repo as list of (time, filename)"""
     try:
         names = repo.vfs.readdir('shelved')
     except OSError, err:
         if err.errno != errno.ENOENT:
             raise
         return []
     info = []
     for (name, _type) in names:
         pfx, sfx = name.rsplit('.', 1)
         if not pfx or sfx != 'patch':
             continue
         st = shelvedfile(repo, name).stat()
         info.append((st.st_mtime, shelvedfile(repo, pfx).filename()))
     return sorted(info, reverse=True)
 
 def listcmd(ui, repo, pats, opts):
     """subcommand that displays the list of shelves"""
     pats = set(pats)
     width = 80
     if not ui.plain():
         width = ui.termwidth()
     namelabel = 'shelve.newest'
     for mtime, name in listshelves(repo):
         sname = util.split(name)[1]
         if pats and sname not in pats:
             continue
         ui.write(sname, label=namelabel)
         namelabel = 'shelve.name'
         if ui.quiet:
             ui.write('\n')
             continue
         ui.write(' ' * (16 - len(sname)))
         used = 16
         age = '(%s)' % templatefilters.age(util.makedate(mtime), abbrev=True)
         ui.write(age, label='shelve.age')
         ui.write(' ' * (12 - len(age)))
         used += 12
         fp = open(name + '.patch', 'rb')
         try:
             while True:
                 line = fp.readline()
                 if not line:
                     break
                 if not line.startswith('#'):
                     desc = line.rstrip()
                     if ui.formatted():
                         desc = util.ellipsis(desc, width - used)
                     ui.write(desc)
                     break
             ui.write('\n')
             if not (opts['patch'] or opts['stat']):
                 continue
             difflines = fp.readlines()
             if opts['patch']:
                 for chunk, label in patch.difflabel(iter, difflines):
                     ui.write(chunk, label=label)
             if opts['stat']:
                 for chunk, label in patch.diffstatui(difflines, width=width,
                                                      git=True):
                     ui.write(chunk, label=label)
         finally:
             fp.close()
 
 def checkparents(repo, state):
     """check parent while resuming an unshelve"""
     if state.parents != repo.dirstate.parents():
         raise util.Abort(_('working directory parents do not match unshelve '
                            'state'))
 
 def pathtofiles(repo, files):
     cwd = repo.getcwd()
     return [repo.pathto(f, cwd) for f in files]
 
 def unshelveabort(ui, repo, state, opts):
     """subcommand that abort an in-progress unshelve"""
     wlock = repo.wlock()
     lock = None
     try:
         checkparents(repo, state)
 
         util.rename(repo.join('unshelverebasestate'),
                     repo.join('rebasestate'))
         try:
             rebase.rebase(ui, repo, **{
                 'abort' : True
             })
         except Exception:
             util.rename(repo.join('rebasestate'),
                         repo.join('unshelverebasestate'))
             raise
 
         lock = repo.lock()
 
         mergefiles(ui, repo, state.wctx, state.pendingctx)
 
         repair.strip(ui, repo, state.stripnodes, backup=False, topic='shelve')
         shelvedstate.clear(repo)
         ui.warn(_("unshelve of '%s' aborted\n") % state.name)
     finally:
         lockmod.release(lock, wlock)
 
 def mergefiles(ui, repo, wctx, shelvectx):
     """updates to wctx and merges the changes from shelvectx into the
     dirstate."""
     oldquiet = ui.quiet
     try:
         ui.quiet = True
         hg.update(repo, wctx.node())
         files = []
         files.extend(shelvectx.files())
         files.extend(shelvectx.parents()[0].files())
 
         # revert will overwrite unknown files, so move them out of the way
         for file in repo.status(unknown=True).unknown:
             if file in files:
                 util.rename(file, file + ".orig")
         ui.pushbuffer(True)
         cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(),
                        *pathtofiles(repo, files),
                        **{'no_backup': True})
         ui.popbuffer()
     finally:
         ui.quiet = oldquiet
 
 def unshelvecleanup(ui, repo, name, opts):
     """remove related files after an unshelve"""
     if not opts['keep']:
         for filetype in 'hg patch'.split():
             shelvedfile(repo, name, filetype).unlink()
 
 def unshelvecontinue(ui, repo, state, opts):
     """subcommand to continue an in-progress unshelve"""
     # We're finishing off a merge. First parent is our original
     # parent, second is the temporary "fake" commit we're unshelving.
     wlock = repo.wlock()
     lock = None
     try:
         checkparents(repo, state)
         ms = merge.mergestate(repo)
         if [f for f in ms if ms[f] == 'u']:
             raise util.Abort(
                 _("unresolved conflicts, can't continue"),
                 hint=_("see 'hg resolve', then 'hg unshelve --continue'"))
 
         lock = repo.lock()
 
         util.rename(repo.join('unshelverebasestate'),
                     repo.join('rebasestate'))
         try:
             rebase.rebase(ui, repo, **{
                 'continue' : True
             })
         except Exception:
             util.rename(repo.join('rebasestate'),
                         repo.join('unshelverebasestate'))
             raise
 
         shelvectx = repo['tip']
         if not shelvectx in state.pendingctx.children():
             # rebase was a no-op, so it produced no child commit
             shelvectx = state.pendingctx
         else:
             # only strip the shelvectx if the rebase produced it
             state.stripnodes.append(shelvectx.node())
 
         mergefiles(ui, repo, state.wctx, shelvectx)
 
         repair.strip(ui, repo, state.stripnodes, backup=False, topic='shelve')
         shelvedstate.clear(repo)
         unshelvecleanup(ui, repo, state.name, opts)
         ui.status(_("unshelve of '%s' complete\n") % state.name)
     finally:
         lockmod.release(lock, wlock)
 
 @command('unshelve',
          [('a', 'abort', None,
            _('abort an incomplete unshelve operation')),
           ('c', 'continue', None,
            _('continue an incomplete unshelve operation')),
           ('', 'keep', None,
            _('keep shelve after unshelving')),
           ('', 'date', '',
            _('set date for temporary commits (DEPRECATED)'), _('DATE'))],
          _('hg unshelve [SHELVED]'))
 def unshelve(ui, repo, *shelved, **opts):
     """restore a shelved change to the working directory
 
     This command accepts an optional name of a shelved change to
     restore. If none is given, the most recent shelved change is used.
 
     If a shelved change is applied successfully, the bundle that
     contains the shelved changes is deleted afterwards.
 
     Since you can restore a shelved change on top of an arbitrary
     commit, it is possible that unshelving will result in a conflict
     between your changes and the commits you are unshelving onto. If
     this occurs, you must resolve the conflict, then use
     ``--continue`` to complete the unshelve operation. (The bundle
     will not be deleted until you successfully complete the unshelve.)
 
     (Alternatively, you can use ``--abort`` to abandon an unshelve
     that causes a conflict. This reverts the unshelved changes, and
     does not delete the bundle.)
     """
     abortf = opts['abort']
     continuef = opts['continue']
     if not abortf and not continuef:
         cmdutil.checkunfinished(repo)
 
     if abortf or continuef:
         if abortf and continuef:
             raise util.Abort(_('cannot use both abort and continue'))
         if shelved:
             raise util.Abort(_('cannot combine abort/continue with '
                                'naming a shelved change'))
 
         try:
             state = shelvedstate.load(repo)
         except IOError, err:
             if err.errno != errno.ENOENT:
                 raise
             raise util.Abort(_('no unshelve operation underway'))
 
         if abortf:
             return unshelveabort(ui, repo, state, opts)
         elif continuef:
             return unshelvecontinue(ui, repo, state, opts)
     elif len(shelved) > 1:
         raise util.Abort(_('can only unshelve one change at a time'))
     elif not shelved:
         shelved = listshelves(repo)
         if not shelved:
             raise util.Abort(_('no shelved changes to apply!'))
         basename = util.split(shelved[0][1])[1]
         ui.status(_("unshelving change '%s'\n") % basename)
     else:
         basename = shelved[0]
 
     if not shelvedfile(repo, basename, 'patch').exists():
         raise util.Abort(_("shelved change '%s' not found") % basename)
 
     oldquiet = ui.quiet
     wlock = lock = tr = None
     try:
         lock = repo.lock()
         wlock = repo.wlock()
 
         tr = repo.transaction('unshelve', report=lambda x: None)
         oldtiprev = len(repo)
 
         pctx = repo['.']
         tmpwctx = pctx
         # The goal is to have a commit structure like so:
         # ...-> pctx -> tmpwctx -> shelvectx
         # where tmpwctx is an optional commit with the user's pending changes
         # and shelvectx is the unshelved changes. Then we merge it all down
         # to the original pctx.
 
         # Store pending changes in a commit
         s = repo.status()
         if s.modified or s.added or s.removed or s.deleted:
             ui.status(_("temporarily committing pending changes "
                         "(restore with 'hg unshelve --abort')\n"))
             def commitfunc(ui, repo, message, match, opts):
                 hasmq = util.safehasattr(repo, 'mq')
                 if hasmq:
                     saved, repo.mq.checkapplied = repo.mq.checkapplied, False
 
                 backup = repo.ui.backupconfig('phases', 'new-commit')
                 try:
                     repo.ui. setconfig('phases', 'new-commit', phases.secret)
                     return repo.commit(message, 'shelve@localhost',
                                        opts.get('date'), match)
                 finally:
                     repo.ui.restoreconfig(backup)
                     if hasmq:
                         repo.mq.checkapplied = saved
 
             tempopts = {}
             tempopts['message'] = "pending changes temporary commit"
             tempopts['date'] = opts.get('date')
             ui.quiet = True
             node = cmdutil.commit(ui, repo, commitfunc, [], tempopts)
             tmpwctx = repo[node]
 
         ui.quiet = True
         shelvedfile(repo, basename, 'hg').applybundle()
 
         ui.quiet = oldquiet
 
         shelvectx = repo['tip']
 
         # If the shelve is not immediately on top of the commit
         # we'll be merging with, rebase it to be on top.
         if tmpwctx.node() != shelvectx.parents()[0].node():
             ui.status(_('rebasing shelved changes\n'))
             try:
                 rebase.rebase(ui, repo, **{
                     'rev' : [shelvectx.rev()],
                     'dest' : str(tmpwctx.rev()),
                     'keep' : True,
                 })
             except error.InterventionRequired:
                 tr.close()
 
                 stripnodes = [repo.changelog.node(rev)
                               for rev in xrange(oldtiprev, len(repo))]
                 shelvedstate.save(repo, basename, pctx, tmpwctx, stripnodes)
 
                 util.rename(repo.join('rebasestate'),
                             repo.join('unshelverebasestate'))
                 raise error.InterventionRequired(
                     _("unresolved conflicts (see 'hg resolve', then "
                       "'hg unshelve --continue')"))
 
             # refresh ctx after rebase completes
             shelvectx = repo['tip']
 
             if not shelvectx in tmpwctx.children():
                 # rebase was a no-op, so it produced no child commit
                 shelvectx = tmpwctx
 
         mergefiles(ui, repo, pctx, shelvectx)
         shelvedstate.clear(repo)
 
         # The transaction aborting will strip all the commits for us,
         # but it doesn't update the inmemory structures, so addchangegroup
         # hooks still fire and try to operate on the missing commits.
         # Clean up manually to prevent this.
         repo.unfiltered().changelog.strip(oldtiprev, tr)
 
         unshelvecleanup(ui, repo, basename, opts)
     finally:
         ui.quiet = oldquiet
         if tr:
             tr.release()
         lockmod.release(lock, wlock)
 
 @command('shelve',
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before shelving')),
           ('', 'cleanup', None,
            _('delete all shelved changes')),
           ('', 'date', '',
            _('shelve with the specified commit date'), _('DATE')),
           ('d', 'delete', None,
            _('delete the named shelved change(s)')),
           ('e', 'edit', False,
            _('invoke editor on commit messages')),
           ('l', 'list', None,
            _('list current shelves')),
           ('m', 'message', '',
            _('use text as shelve message'), _('TEXT')),
           ('n', 'name', '',
            _('use the given name for the shelved commit'), _('NAME')),
           ('p', 'patch', None,
            _('show patch')),
           ('', 'stat', None,
            _('output diffstat-style summary of changes'))] + commands.walkopts,
          _('hg shelve [OPTION]... [FILE]...'))
 def shelvecmd(ui, repo, *pats, **opts):
     '''save and set aside changes from the working directory
 
     Shelving takes files that "hg status" reports as not clean, saves
     the modifications to a bundle (a shelved change), and reverts the
     files so that their state in the working directory becomes clean.
 
     To restore these changes to the working directory, using "hg
     unshelve"; this will work even if you switch to a different
     commit.
 
     When no files are specified, "hg shelve" saves all not-clean
     files. If specific files or directories are named, only changes to
     those files are shelved.
 
     Each shelved change has a name that makes it easier to find later.
     The name of a shelved change defaults to being based on the active
     bookmark, or if there is no active bookmark, the current named
     branch.  To specify a different name, use ``--name``.
 
     To see a list of existing shelved changes, use the ``--list``
     option. For each shelved change, this will print its name, age,
     and description; use ``--patch`` or ``--stat`` for more details.
 
     To delete specific shelved changes, use ``--delete``. To delete
     all shelved changes, use ``--cleanup``.
     '''
     cmdutil.checkunfinished(repo)
 
     allowables = [
         ('addremove', 'create'), # 'create' is pseudo action
         ('cleanup', 'cleanup'),
 #       ('date', 'create'), # ignored for passing '--date "0 0"' in tests
         ('delete', 'delete'),
         ('edit', 'create'),
         ('list', 'list'),
         ('message', 'create'),
         ('name', 'create'),
         ('patch', 'list'),
         ('stat', 'list'),
     ]
     def checkopt(opt):
         if opts[opt]:
             for i, allowable in allowables:
                 if opts[i] and opt != allowable:
                     raise util.Abort(_("options '--%s' and '--%s' may not be "
                                        "used together") % (opt, i))
             return True
     if checkopt('cleanup'):
         if pats:
             raise util.Abort(_("cannot specify names when using '--cleanup'"))
         return cleanupcmd(ui, repo)
     elif checkopt('delete'):
         return deletecmd(ui, repo, pats)
     elif checkopt('list'):
         return listcmd(ui, repo, pats, opts)
     else:
         for i in ('patch', 'stat'):
             if opts[i]:
                 raise util.Abort(_("option '--%s' may not be "
                                    "used when shelving a change") % (i,))
         return createcmd(ui, repo, pats, opts)
 
 def extsetup(ui):
     cmdutil.unfinishedstates.append(
         [shelvedstate._filename, False, False,
          _('unshelve already in progress'),
          _("use 'hg unshelve --continue' or 'hg unshelve --abort'")])

mercurial/bookmarks.py

@@ -1,460 +1,460 b''
 # Mercurial bookmark support code
 #
 # Copyright 2008 David Soria Parra <[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 os
 from mercurial.i18n import _
 from mercurial.node import hex, bin
 from mercurial import encoding, error, util, obsolete, lock as lockmod
 import errno
 
 class bmstore(dict):
     """Storage for bookmarks.
 
     This object should do all bookmark reads and writes, so that it's
     fairly simple to replace the storage underlying bookmarks without
     having to clone the logic surrounding bookmarks.
 
     This particular bmstore implementation stores bookmarks as
     {hash}\s{name}\n (the same format as localtags) in
     .hg/bookmarks. The mapping is stored as {name: nodeid}.
 
     This class does NOT handle the "current" bookmark state at this
     time.
     """
 
     def __init__(self, repo):
         dict.__init__(self)
         self._repo = repo
         try:
             bkfile = self.getbkfile(repo)
             for line in bkfile:
                 line = line.strip()
                 if not line:
                     continue
                 if ' ' not in line:
                     repo.ui.warn(_('malformed line in .hg/bookmarks: %r\n')
                                  % line)
                     continue
                 sha, refspec = line.split(' ', 1)
                 refspec = encoding.tolocal(refspec)
                 try:
                     self[refspec] = repo.changelog.lookup(sha)
                 except LookupError:
                     pass
         except IOError, inst:
             if inst.errno != errno.ENOENT:
                 raise
 
     def getbkfile(self, repo):
         bkfile = None
         if 'HG_PENDING' in os.environ:
             try:
                 bkfile = repo.vfs('bookmarks.pending')
             except IOError, inst:
                 if inst.errno != errno.ENOENT:
                     raise
         if bkfile is None:
             bkfile = repo.vfs('bookmarks')
         return bkfile
 
     def recordchange(self, tr):
         """record that bookmarks have been changed in a transaction
 
         The transaction is then responsible for updating the file content."""
         tr.addfilegenerator('bookmarks', ('bookmarks',), self._write,
                             location='plain')
         tr.hookargs['bookmark_moved'] = '1'
 
     def write(self):
         '''Write bookmarks
 
         Write the given bookmark => hash dictionary to the .hg/bookmarks file
         in a format equal to those of localtags.
 
         We also store a backup of the previous state in undo.bookmarks that
         can be copied back on rollback.
         '''
         repo = self._repo
         self._writerepo(repo)
 
     def _writerepo(self, repo):
         """Factored out for extensibility"""
         if repo._bookmarkcurrent not in self:
             unsetcurrent(repo)
 
         wlock = repo.wlock()
         try:
 
             file = repo.vfs('bookmarks', 'w', atomictemp=True)
             self._write(file)
             file.close()
 
             # touch 00changelog.i so hgweb reloads bookmarks (no lock needed)
             try:
                 repo.svfs.utime('00changelog.i', None)
             except OSError:
                 pass
 
         finally:
             wlock.release()
 
     def _write(self, fp):
         for name, node in self.iteritems():
             fp.write("%s %s\n" % (hex(node), encoding.fromlocal(name)))
 
 def readcurrent(repo):
     '''Get the current bookmark
 
     If we use gittish branches we have a current bookmark that
     we are on. This function returns the name of the bookmark. It
     is stored in .hg/bookmarks.current
     '''
     mark = None
     try:
-        file = repo.opener('bookmarks.current')
+        file = repo.vfs('bookmarks.current')
     except IOError, inst:
         if inst.errno != errno.ENOENT:
             raise
         return None
     try:
         # No readline() in osutil.posixfile, reading everything is cheap
         mark = encoding.tolocal((file.readlines() or [''])[0])
         if mark == '' or mark not in repo._bookmarks:
             mark = None
     finally:
         file.close()
     return mark
 
 def setcurrent(repo, mark):
     '''Set the name of the bookmark that we are currently on
 
     Set the name of the bookmark that we are on (hg update <bookmark>).
     The name is recorded in .hg/bookmarks.current
     '''
     if mark not in repo._bookmarks:
         raise AssertionError('bookmark %s does not exist!' % mark)
 
     current = repo._bookmarkcurrent
     if current == mark:
         return
 
     wlock = repo.wlock()
     try:
-        file = repo.opener('bookmarks.current', 'w', atomictemp=True)
+        file = repo.vfs('bookmarks.current', 'w', atomictemp=True)
         file.write(encoding.fromlocal(mark))
         file.close()
     finally:
         wlock.release()
     repo._bookmarkcurrent = mark
 
 def unsetcurrent(repo):
     wlock = repo.wlock()
     try:
         try:
             repo.vfs.unlink('bookmarks.current')
             repo._bookmarkcurrent = None
         except OSError, inst:
             if inst.errno != errno.ENOENT:
                 raise
     finally:
         wlock.release()
 
 def iscurrent(repo, mark=None, parents=None):
     '''Tell whether the current bookmark is also active
 
     I.e., the bookmark listed in .hg/bookmarks.current also points to a
     parent of the working directory.
     '''
     if not mark:
         mark = repo._bookmarkcurrent
     if not parents:
         parents = [p.node() for p in repo[None].parents()]
     marks = repo._bookmarks
     return (mark in marks and marks[mark] in parents)
 
 def updatecurrentbookmark(repo, oldnode, curbranch):
     try:
         return update(repo, oldnode, repo.branchtip(curbranch))
     except error.RepoLookupError:
         if curbranch == "default": # no default branch!
             return update(repo, oldnode, repo.lookup("tip"))
         else:
             raise util.Abort(_("branch %s not found") % curbranch)
 
 def deletedivergent(repo, deletefrom, bm):
     '''Delete divergent versions of bm on nodes in deletefrom.
 
     Return True if at least one bookmark was deleted, False otherwise.'''
     deleted = False
     marks = repo._bookmarks
     divergent = [b for b in marks if b.split('@', 1)[0] == bm.split('@', 1)[0]]
     for mark in divergent:
         if mark == '@' or '@' not in mark:
             # can't be divergent by definition
             continue
         if mark and marks[mark] in deletefrom:
             if mark != bm:
                 del marks[mark]
                 deleted = True
     return deleted
 
 def calculateupdate(ui, repo, checkout):
     '''Return a tuple (targetrev, movemarkfrom) indicating the rev to
     check out and where to move the active bookmark from, if needed.'''
     movemarkfrom = None
     if checkout is None:
         curmark = repo._bookmarkcurrent
         if iscurrent(repo):
             movemarkfrom = repo['.'].node()
         elif curmark:
             ui.status(_("updating to active bookmark %s\n") % curmark)
             checkout = curmark
     return (checkout, movemarkfrom)
 
 def update(repo, parents, node):
     deletefrom = parents
     marks = repo._bookmarks
     update = False
     cur = repo._bookmarkcurrent
     if not cur:
         return False
 
     if marks[cur] in parents:
         new = repo[node]
         divs = [repo[b] for b in marks
                 if b.split('@', 1)[0] == cur.split('@', 1)[0]]
         anc = repo.changelog.ancestors([new.rev()])
         deletefrom = [b.node() for b in divs if b.rev() in anc or b == new]
         if validdest(repo, repo[marks[cur]], new):
             marks[cur] = new.node()
             update = True
 
     if deletedivergent(repo, deletefrom, cur):
         update = True
 
     if update:
         marks.write()
     return update
 
 def listbookmarks(repo):
     # We may try to list bookmarks on a repo type that does not
     # support it (e.g., statichttprepository).
     marks = getattr(repo, '_bookmarks', {})
 
     d = {}
     hasnode = repo.changelog.hasnode
     for k, v in marks.iteritems():
         # don't expose local divergent bookmarks
         if hasnode(v) and ('@' not in k or k.endswith('@')):
             d[k] = hex(v)
     return d
 
 def pushbookmark(repo, key, old, new):
     w = l = tr = None
     try:
         w = repo.wlock()
         l = repo.lock()
         tr = repo.transaction('bookmarks')
         marks = repo._bookmarks
         existing = hex(marks.get(key, ''))
         if existing != old and existing != new:
             return False
         if new == '':
             del marks[key]
         else:
             if new not in repo:
                 return False
             marks[key] = repo[new].node()
         marks.recordchange(tr)
         tr.close()
         return True
     finally:
         lockmod.release(tr, l, w)
 
 def compare(repo, srcmarks, dstmarks,
             srchex=None, dsthex=None, targets=None):
     '''Compare bookmarks between srcmarks and dstmarks
 
     This returns tuple "(addsrc, adddst, advsrc, advdst, diverge,
     differ, invalid)", each are list of bookmarks below:
 
     :addsrc:  added on src side (removed on dst side, perhaps)
     :adddst:  added on dst side (removed on src side, perhaps)
     :advsrc:  advanced on src side
     :advdst:  advanced on dst side
     :diverge: diverge
     :differ:  changed, but changeset referred on src is unknown on dst
     :invalid: unknown on both side
     :same:    same on both side
 
     Each elements of lists in result tuple is tuple "(bookmark name,
     changeset ID on source side, changeset ID on destination
     side)". Each changeset IDs are 40 hexadecimal digit string or
     None.
 
     Changeset IDs of tuples in "addsrc", "adddst", "differ" or
      "invalid" list may be unknown for repo.
 
     This function expects that "srcmarks" and "dstmarks" return
     changeset ID in 40 hexadecimal digit string for specified
     bookmark. If not so (e.g. bmstore "repo._bookmarks" returning
     binary value), "srchex" or "dsthex" should be specified to convert
     into such form.
 
     If "targets" is specified, only bookmarks listed in it are
     examined.
     '''
     if not srchex:
         srchex = lambda x: x
     if not dsthex:
         dsthex = lambda x: x
 
     if targets:
         bset = set(targets)
     else:
         srcmarkset = set(srcmarks)
         dstmarkset = set(dstmarks)
         bset = srcmarkset | dstmarkset
 
     results = ([], [], [], [], [], [], [], [])
     addsrc = results[0].append
     adddst = results[1].append
     advsrc = results[2].append
     advdst = results[3].append
     diverge = results[4].append
     differ = results[5].append
     invalid = results[6].append
     same = results[7].append
 
     for b in sorted(bset):
         if b not in srcmarks:
             if b in dstmarks:
                 adddst((b, None, dsthex(dstmarks[b])))
             else:
                 invalid((b, None, None))
         elif b not in dstmarks:
             addsrc((b, srchex(srcmarks[b]), None))
         else:
             scid = srchex(srcmarks[b])
             dcid = dsthex(dstmarks[b])
             if scid == dcid:
                 same((b, scid, dcid))
             elif scid in repo and dcid in repo:
                 sctx = repo[scid]
                 dctx = repo[dcid]
                 if sctx.rev() < dctx.rev():
                     if validdest(repo, sctx, dctx):
                         advdst((b, scid, dcid))
                     else:
                         diverge((b, scid, dcid))
                 else:
                     if validdest(repo, dctx, sctx):
                         advsrc((b, scid, dcid))
                     else:
                         diverge((b, scid, dcid))
             else:
                 # it is too expensive to examine in detail, in this case
                 differ((b, scid, dcid))
 
     return results
 
 def _diverge(ui, b, path, localmarks):
     if b == '@':
         b = ''
     # find a unique @ suffix
     for x in range(1, 100):
         n = '%s@%d' % (b, x)
         if n not in localmarks:
             break
     # try to use an @pathalias suffix
     # if an @pathalias already exists, we overwrite (update) it
     if path.startswith("file:"):
         path = util.url(path).path
     for p, u in ui.configitems("paths"):
         if u.startswith("file:"):
             u = util.url(u).path
         if path == u:
             n = '%s@%s' % (b, p)
     return n
 
 def updatefromremote(ui, repo, remotemarks, path, trfunc, explicit=()):
     ui.debug("checking for updated bookmarks\n")
     localmarks = repo._bookmarks
     (addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same
      ) = compare(repo, remotemarks, localmarks, dsthex=hex)
 
     status = ui.status
     warn = ui.warn
     if ui.configbool('ui', 'quietbookmarkmove', False):
         status = warn = ui.debug
 
     explicit = set(explicit)
     changed = []
     for b, scid, dcid in addsrc:
         if scid in repo: # add remote bookmarks for changes we already have
             changed.append((b, bin(scid), status,
                             _("adding remote bookmark %s\n") % (b)))
     for b, scid, dcid in advsrc:
         changed.append((b, bin(scid), status,
                         _("updating bookmark %s\n") % (b)))
     # remove normal movement from explicit set
     explicit.difference_update(d[0] for d in changed)
 
     for b, scid, dcid in diverge:
         if b in explicit:
             explicit.discard(b)
             changed.append((b, bin(scid), status,
                             _("importing bookmark %s\n") % (b)))
         else:
             db = _diverge(ui, b, path, localmarks)
             changed.append((db, bin(scid), warn,
                             _("divergent bookmark %s stored as %s\n")
                             % (b, db)))
     for b, scid, dcid in adddst + advdst:
         if b in explicit:
             explicit.discard(b)
             changed.append((b, bin(scid), status,
                             _("importing bookmark %s\n") % (b)))
 
     if changed:
         tr = trfunc()
         for b, node, writer, msg in sorted(changed):
             localmarks[b] = node
             writer(msg)
         localmarks.recordchange(tr)
 
 def diff(ui, dst, src):
     ui.status(_("searching for changed bookmarks\n"))
 
     smarks = src.listkeys('bookmarks')
     dmarks = dst.listkeys('bookmarks')
 
     diff = sorted(set(smarks) - set(dmarks))
     for k in diff:
         mark = ui.debugflag and smarks[k] or smarks[k][:12]
         ui.write("   %-25s %s\n" % (k, mark))
 
     if len(diff) <= 0:
         ui.status(_("no changed bookmarks found\n"))
         return 1
     return 0
 
 def validdest(repo, old, new):
     """Is the new bookmark destination a valid update from the old one"""
     repo = repo.unfiltered()
     if old == new:
         # Old == new -> nothing to update.
         return False
     elif not old:
         # old is nullrev, anything is valid.
         # (new != nullrev has been excluded by the previous check)
         return True
     elif repo.obsstore:
         return new.node() in obsolete.foreground(repo, [old.node()])
     else:
         # still an independent clause as it is lazyer (and therefore faster)
         return old.descendant(new)

mercurial/branchmap.py

@@ -1,451 +1,451 b''
 # branchmap.py - logic to computes, maintain and stores branchmap for local repo
 #
 # 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
 import encoding
 import util
 import time
 from array import array
 from struct import calcsize, pack, unpack
 
 def _filename(repo):
     """name of a branchcache file for a given repo or repoview"""
     filename = "cache/branch2"
     if repo.filtername:
         filename = '%s-%s' % (filename, repo.filtername)
     return filename
 
 def read(repo):
     try:
-        f = repo.opener(_filename(repo))
+        f = repo.vfs(_filename(repo))
         lines = f.read().split('\n')
         f.close()
     except (IOError, OSError):
         return None
 
     try:
         cachekey = lines.pop(0).split(" ", 2)
         last, lrev = cachekey[:2]
         last, lrev = bin(last), int(lrev)
         filteredhash = None
         if len(cachekey) > 2:
             filteredhash = bin(cachekey[2])
         partial = branchcache(tipnode=last, tiprev=lrev,
                               filteredhash=filteredhash)
         if not partial.validfor(repo):
             # invalidate the cache
             raise ValueError('tip differs')
         for l in lines:
             if not l:
                 continue
             node, state, label = l.split(" ", 2)
             if state not in 'oc':
                 raise ValueError('invalid branch state')
             label = encoding.tolocal(label.strip())
             if not node in repo:
                 raise ValueError('node %s does not exist' % node)
             node = bin(node)
             partial.setdefault(label, []).append(node)
             if state == 'c':
                 partial._closednodes.add(node)
     except KeyboardInterrupt:
         raise
     except Exception, inst:
         if repo.ui.debugflag:
             msg = 'invalid branchheads cache'
             if repo.filtername is not None:
                 msg += ' (%s)' % repo.filtername
             msg += ': %s\n'
             repo.ui.debug(msg % inst)
         partial = None
     return partial
 
 ### Nearest subset relation
 # Nearest subset of filter X is a filter Y so that:
 # * Y is included in X,
 # * X - Y is as small as possible.
 # This create and ordering used for branchmap purpose.
 # the ordering may be partial
 subsettable = {None: 'visible',
                'visible': 'served',
                'served': 'immutable',
                'immutable': 'base'}
 
 def updatecache(repo):
     cl = repo.changelog
     filtername = repo.filtername
     partial = repo._branchcaches.get(filtername)
 
     revs = []
     if partial is None or not partial.validfor(repo):
         partial = read(repo)
         if partial is None:
             subsetname = subsettable.get(filtername)
             if subsetname is None:
                 partial = branchcache()
             else:
                 subset = repo.filtered(subsetname)
                 partial = subset.branchmap().copy()
                 extrarevs = subset.changelog.filteredrevs - cl.filteredrevs
                 revs.extend(r for  r in extrarevs if r <= partial.tiprev)
     revs.extend(cl.revs(start=partial.tiprev + 1))
     if revs:
         partial.update(repo, revs)
         partial.write(repo)
     assert partial.validfor(repo), filtername
     repo._branchcaches[repo.filtername] = partial
 
 class branchcache(dict):
     """A dict like object that hold branches heads cache.
 
     This cache is used to avoid costly computations to determine all the
     branch heads of a repo.
 
     The cache is serialized on disk in the following format:
 
     <tip hex node> <tip rev number> [optional filtered repo hex hash]
     <branch head hex node> <open/closed state> <branch name>
     <branch head hex node> <open/closed state> <branch name>
     ...
 
     The first line is used to check if the cache is still valid. If the
     branch cache is for a filtered repo view, an optional third hash is
     included that hashes the hashes of all filtered revisions.
 
     The open/closed state is represented by a single letter 'o' or 'c'.
     This field can be used to avoid changelog reads when determining if a
     branch head closes a branch or not.
     """
 
     def __init__(self, entries=(), tipnode=nullid, tiprev=nullrev,
                  filteredhash=None, closednodes=None):
         super(branchcache, self).__init__(entries)
         self.tipnode = tipnode
         self.tiprev = tiprev
         self.filteredhash = filteredhash
         # closednodes is a set of nodes that close their branch. If the branch
         # cache has been updated, it may contain nodes that are no longer
         # heads.
         if closednodes is None:
             self._closednodes = set()
         else:
             self._closednodes = closednodes
         self._revbranchcache = None
 
     def _hashfiltered(self, repo):
         """build hash of revision filtered in the current cache
 
         Tracking tipnode and tiprev is not enough to ensure validity of the
         cache as they do not help to distinct cache that ignored various
         revision bellow tiprev.
 
         To detect such difference, we build a cache of all ignored revisions.
         """
         cl = repo.changelog
         if not cl.filteredrevs:
             return None
         key = None
         revs = sorted(r for r in cl.filteredrevs if r <= self.tiprev)
         if revs:
             s = util.sha1()
             for rev in revs:
                 s.update('%s;' % rev)
             key = s.digest()
         return key
 
     def validfor(self, repo):
         """Is the cache content valid regarding a repo
 
         - False when cached tipnode is unknown or if we detect a strip.
         - True when cache is up to date or a subset of current repo."""
         try:
             return ((self.tipnode == repo.changelog.node(self.tiprev))
                     and (self.filteredhash == self._hashfiltered(repo)))
         except IndexError:
             return False
 
     def _branchtip(self, heads):
         '''Return tuple with last open head in heads and false,
         otherwise return last closed head and true.'''
         tip = heads[-1]
         closed = True
         for h in reversed(heads):
             if h not in self._closednodes:
                 tip = h
                 closed = False
                 break
         return tip, closed
 
     def branchtip(self, branch):
         '''Return the tipmost open head on branch head, otherwise return the
         tipmost closed head on branch.
         Raise KeyError for unknown branch.'''
         return self._branchtip(self[branch])[0]
 
     def branchheads(self, branch, closed=False):
         heads = self[branch]
         if not closed:
             heads = [h for h in heads if h not in self._closednodes]
         return heads
 
     def iterbranches(self):
         for bn, heads in self.iteritems():
             yield (bn, heads) + self._branchtip(heads)
 
     def copy(self):
         """return an deep copy of the branchcache object"""
         return branchcache(self, self.tipnode, self.tiprev, self.filteredhash,
                            self._closednodes)
 
     def write(self, repo):
         try:
-            f = repo.opener(_filename(repo), "w", atomictemp=True)
+            f = repo.vfs(_filename(repo), "w", atomictemp=True)
             cachekey = [hex(self.tipnode), str(self.tiprev)]
             if self.filteredhash is not None:
                 cachekey.append(hex(self.filteredhash))
             f.write(" ".join(cachekey) + '\n')
             nodecount = 0
             for label, nodes in sorted(self.iteritems()):
                 for node in nodes:
                     nodecount += 1
                     if node in self._closednodes:
                         state = 'c'
                     else:
                         state = 'o'
                     f.write("%s %s %s\n" % (hex(node), state,
                                             encoding.fromlocal(label)))
             f.close()
             repo.ui.log('branchcache',
                         'wrote %s branch cache with %d labels and %d nodes\n',
                         repo.filtername, len(self), nodecount)
         except (IOError, OSError, util.Abort), inst:
             repo.ui.debug("couldn't write branch cache: %s\n" % inst)
             # Abort may be raise by read only opener
             pass
         if self._revbranchcache:
             self._revbranchcache.write(repo.unfiltered())
             self._revbranchcache = None
 
     def update(self, repo, revgen):
         """Given a branchhead cache, self, that may have extra nodes or be
         missing heads, and a generator of nodes that are strictly a superset of
         heads missing, this function updates self to be correct.
         """
         starttime = time.time()
         cl = repo.changelog
         # collect new branch entries
         newbranches = {}
         urepo = repo.unfiltered()
         self._revbranchcache = revbranchcache(urepo)
         getbranchinfo = self._revbranchcache.branchinfo
         ucl = urepo.changelog
         for r in revgen:
             branch, closesbranch = getbranchinfo(ucl, r)
             newbranches.setdefault(branch, []).append(r)
             if closesbranch:
                 self._closednodes.add(cl.node(r))
 
         # fetch current topological heads to speed up filtering
         topoheads = set(cl.headrevs())
 
         # 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, newheadrevs in newbranches.iteritems():
             bheads = self.setdefault(branch, [])
             bheadset = set(cl.rev(node) for node in bheads)
 
             # This have been tested True on all internal usage of this function.
             # run it again in case of doubt
             # assert not (set(bheadrevs) & set(newheadrevs))
             newheadrevs.sort()
             bheadset.update(newheadrevs)
 
             # This prunes out two kinds of heads - heads that are superseded by
             # a head in newheadrevs, and newheadrevs that are not heads because
             # an existing head is their descendant.
             uncertain = bheadset - topoheads
             if uncertain:
                 floorrev = min(uncertain)
                 ancestors = set(cl.ancestors(newheadrevs, floorrev))
                 bheadset -= ancestors
             bheadrevs = sorted(bheadset)
             self[branch] = [cl.node(rev) for rev in bheadrevs]
             tiprev = bheadrevs[-1]
             if tiprev > self.tiprev:
                 self.tipnode = cl.node(tiprev)
                 self.tiprev = tiprev
 
         if not self.validfor(repo):
             # cache key are not valid anymore
             self.tipnode = nullid
             self.tiprev = nullrev
             for heads in self.values():
                 tiprev = max(cl.rev(node) for node in heads)
                 if tiprev > self.tiprev:
                     self.tipnode = cl.node(tiprev)
                     self.tiprev = tiprev
         self.filteredhash = self._hashfiltered(repo)
 
         duration = time.time() - starttime
         repo.ui.log('branchcache', 'updated %s branch cache in %.4f seconds\n',
                     repo.filtername, duration)
 
 # Revision branch info cache
 
 _rbcversion = '-v1'
 _rbcnames = 'cache/rbc-names' + _rbcversion
 _rbcrevs = 'cache/rbc-revs' + _rbcversion
 # [4 byte hash prefix][4 byte branch name number with sign bit indicating open]
 _rbcrecfmt = '>4sI'
 _rbcrecsize = calcsize(_rbcrecfmt)
 _rbcnodelen = 4
 _rbcbranchidxmask = 0x7fffffff
 _rbccloseflag = 0x80000000
 
 class revbranchcache(object):
     """Persistent cache, mapping from revision number to branch name and close.
     This is a low level cache, independent of filtering.
 
     Branch names are stored in rbc-names in internal encoding separated by 0.
     rbc-names is append-only, and each branch name is only stored once and will
     thus have a unique index.
 
     The branch info for each revision is stored in rbc-revs as constant size
     records. The whole file is read into memory, but it is only 'parsed' on
     demand. The file is usually append-only but will be truncated if repo
     modification is detected.
     The record for each revision contains the first 4 bytes of the
     corresponding node hash, and the record is only used if it still matches.
     Even a completely trashed rbc-revs fill thus still give the right result
     while converging towards full recovery ... assuming no incorrectly matching
     node hashes.
     The record also contains 4 bytes where 31 bits contains the index of the
     branch and the last bit indicate that it is a branch close commit.
     The usage pattern for rbc-revs is thus somewhat similar to 00changelog.i
     and will grow with it but be 1/8th of its size.
     """
 
     def __init__(self, repo):
         assert repo.filtername is None
         self._names = [] # branch names in local encoding with static index
         self._rbcrevs = array('c') # structs of type _rbcrecfmt
         self._rbcsnameslen = 0
         try:
             bndata = repo.vfs.read(_rbcnames)
             self._rbcsnameslen = len(bndata) # for verification before writing
             self._names = [encoding.tolocal(bn) for bn in bndata.split('\0')]
         except (IOError, OSError), inst:
             repo.ui.debug("couldn't read revision branch cache names: %s\n" %
                           inst)
         if self._names:
             try:
                 data = repo.vfs.read(_rbcrevs)
                 self._rbcrevs.fromstring(data)
             except (IOError, OSError), inst:
                 repo.ui.debug("couldn't read revision branch cache: %s\n" %
                               inst)
         # remember number of good records on disk
         self._rbcrevslen = min(len(self._rbcrevs) // _rbcrecsize,
                                len(repo.changelog))
         if self._rbcrevslen == 0:
             self._names = []
         self._rbcnamescount = len(self._names) # number of good names on disk
         self._namesreverse = dict((b, r) for r, b in enumerate(self._names))
 
     def branchinfo(self, changelog, rev):
         """Return branch name and close flag for rev, using and updating
         persistent cache."""
         rbcrevidx = rev * _rbcrecsize
 
         # if requested rev is missing, add and populate all missing revs
         if len(self._rbcrevs) < rbcrevidx + _rbcrecsize:
             first = len(self._rbcrevs) // _rbcrecsize
             self._rbcrevs.extend('\0' * (len(changelog) * _rbcrecsize -
                                          len(self._rbcrevs)))
             for r in xrange(first, len(changelog)):
                 self._branchinfo(changelog, r)
 
         # fast path: extract data from cache, use it if node is matching
         reponode = changelog.node(rev)[:_rbcnodelen]
         cachenode, branchidx = unpack(
             _rbcrecfmt, buffer(self._rbcrevs, rbcrevidx, _rbcrecsize))
         close = bool(branchidx & _rbccloseflag)
         if close:
             branchidx &= _rbcbranchidxmask
         if cachenode == reponode:
             return self._names[branchidx], close
         # fall back to slow path and make sure it will be written to disk
         self._rbcrevslen = min(self._rbcrevslen, rev)
         return self._branchinfo(changelog, rev)
 
     def _branchinfo(self, changelog, rev):
         """Retrieve branch info from changelog and update _rbcrevs"""
         b, close = changelog.branchinfo(rev)
         if b in self._namesreverse:
             branchidx = self._namesreverse[b]
         else:
             branchidx = len(self._names)
             self._names.append(b)
             self._namesreverse[b] = branchidx
         reponode = changelog.node(rev)
         if close:
             branchidx |= _rbccloseflag
         rbcrevidx = rev * _rbcrecsize
         rec = array('c')
         rec.fromstring(pack(_rbcrecfmt, reponode, branchidx))
         self._rbcrevs[rbcrevidx:rbcrevidx + _rbcrecsize] = rec
         return b, close
 
     def write(self, repo):
         """Save branch cache if it is dirty."""
         if self._rbcnamescount < len(self._names):
             try:
                 if self._rbcnamescount != 0:
                     f = repo.vfs.open(_rbcnames, 'ab')
                     # The position after open(x, 'a') is implementation defined-
                     # see issue3543.  SEEK_END was added in 2.5
                     f.seek(0, 2) #os.SEEK_END
                     if f.tell() == self._rbcsnameslen:
                         f.write('\0')
                     else:
                         f.close()
                         repo.ui.debug("%s changed - rewriting it\n" % _rbcnames)
                         self._rbcnamescount = 0
                         self._rbcrevslen = 0
                 if self._rbcnamescount == 0:
                     f = repo.vfs.open(_rbcnames, 'wb')
                 f.write('\0'.join(encoding.fromlocal(b)
                                   for b in self._names[self._rbcnamescount:]))
                 self._rbcsnameslen = f.tell()
                 f.close()
             except (IOError, OSError, util.Abort), inst:
                 repo.ui.debug("couldn't write revision branch cache names: "
                               "%s\n" % inst)
                 return
             self._rbcnamescount = len(self._names)
 
         start = self._rbcrevslen * _rbcrecsize
         if start != len(self._rbcrevs):
             revs = min(len(repo.changelog), len(self._rbcrevs) // _rbcrecsize)
             try:
                 f = repo.vfs.open(_rbcrevs, 'ab')
                 # The position after open(x, 'a') is implementation defined-
                 # see issue3543.  SEEK_END was added in 2.5
                 f.seek(0, 2) #os.SEEK_END
                 if f.tell() != start:
                     repo.ui.debug("truncating %s to %s\n" % (_rbcrevs, start))
                     f.seek(start)
                     f.truncate()
                 end = revs * _rbcrecsize
                 f.write(self._rbcrevs[start:end])
                 f.close()
             except (IOError, OSError, util.Abort), inst:
                 repo.ui.debug("couldn't write revision branch cache: %s\n" %
                               inst)
                 return
             self._rbcrevslen = revs