merge: make in-memory changes visible to external update hooks

51844b8b5017 (while 3.4 code-freeze) made all 'update' hooks run after
releasing wlock for visibility of in-memory dirstate changes. But this
breaks paired invocation of 'preupdate' and 'update' hooks.

For example, 'hg backout --merge' for TARGET revision, which isn't
parent of CURRENT, consists of steps below:

  1. update from CURRENT to TARGET
  2. commit BACKOUT revision, which backs TARGET out
  3. update from BACKOUT to CURRENT
  4. merge TARGET into CURRENT

Then, we expects hooks to run in the order below:

  - 'preupdate' on CURRENT for (1)
  - 'update'    on TARGET  for (1)
  - 'preupdate' on BACKOUT for (3)
  - 'update'    on CURRENT for (3)
  - 'preupdate' on TARGET  for (4)
  - 'update'    on CURRENT/TARGET for (4)

But hooks actually run in the order below:

  - 'preupdate' on CURRENT for (1)
  - 'preupdate' on BACKOUT for (3)
  - 'preupdate' on TARGET  for (4)
  - 'update'    on TARGET  for (1), but actually on CURRENT/TARGET
  - 'update'    on CURRENT for (3), but actually on CURRENT/TARGET
  - 'update'    on CURRENT for (4), but actually on CURRENT/TARGET

Root cause of the issue focused by 51844b8b5017 is that external
'update' hook process can't view in-memory changes (especially, of
dirstate), because they aren't written out until the end of
transaction (or wlock).

Now, hooks can be invoked just after updating, because previous
patches made in-memory changes visible to external process.

This patch may break backward compatibility from the point of view of
"scheduling hook execution", but should be reasonable because 'update'
hooks had been executed in this order before 3.4.

This patch tests "hg backout" and "hg unshelve", because the former
activates the transaction before 'update' hook invocation, but the
former doesn't.

mercurial/merge.py

@@ -1,1284 +1,1282 b''
 # merge.py - directory-level update/merge handling for Mercurial
 #
 # Copyright 2006, 2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import errno
 import os
 import shutil
 import struct
 
 from .i18n import _
 from .node import (
     bin,
     hex,
     nullid,
     nullrev,
 )
 from . import (
     copies,
     destutil,
     error,
     filemerge,
     obsolete,
     subrepo,
     util,
     worker,
 )
 
 _pack = struct.pack
 _unpack = struct.unpack
 
 def _droponode(data):
     # used for compatibility for v1
     bits = data.split('\0')
     bits = bits[:-2] + bits[-1:]
     return '\0'.join(bits)
 
 class mergestate(object):
     '''track 3-way merge state of individual files
 
     it is stored on disk when needed. Two file are used, one with an old
     format, one with a new format. Both contains similar data, but the new
     format can store new kinds of field.
 
     Current new format is a list of arbitrary record of the form:
 
         [type][length][content]
 
     Type is a single character, length is a 4 bytes integer, content is an
     arbitrary suites of bytes of length `length`.
 
     Type should be a letter. Capital letter are mandatory record, Mercurial
     should abort if they are unknown. lower case record can be safely ignored.
 
     Currently known record:
 
     L: the node of the "local" part of the merge (hexified version)
     O: the node of the "other" part of the merge (hexified version)
     F: a file to be merged entry
     D: a file that the external merge driver will merge internally
        (experimental)
     m: the external merge driver defined for this merge plus its run state
        (experimental)
 
     Merge driver run states (experimental):
     u: driver-resolved files unmarked -- needs to be run next time we're about
        to resolve or commit
     m: driver-resolved files marked -- only needs to be run before commit
     s: success/skipped -- does not need to be run any more
     '''
     statepathv1 = 'merge/state'
     statepathv2 = 'merge/state2'
 
     def __init__(self, repo):
         self._repo = repo
         self._dirty = False
         self._read()
 
     def reset(self, node=None, other=None):
         self._state = {}
         self._local = None
         self._other = None
         if node:
             self._local = node
             self._other = other
         self._mdstate = 'u'
         shutil.rmtree(self._repo.join('merge'), True)
         self._dirty = False
 
     def _read(self):
         """Analyse each record content to restore a serialized state from disk
 
         This function process "record" entry produced by the de-serialization
         of on disk file.
         """
         self._state = {}
         self._local = None
         self._other = None
         self._mdstate = 'u'
         records = self._readrecords()
         for rtype, record in records:
             if rtype == 'L':
                 self._local = bin(record)
             elif rtype == 'O':
                 self._other = bin(record)
             elif rtype == 'm':
                 bits = record.split('\0', 1)
                 mdstate = bits[1]
                 if len(mdstate) != 1 or mdstate not in 'ums':
                     # the merge driver should be idempotent, so just rerun it
                     mdstate = 'u'
 
                 # protect against the following:
                 # - A configures a malicious merge driver in their hgrc, then
                 #   pauses the merge
                 # - A edits their hgrc to remove references to the merge driver
                 # - A gives a copy of their entire repo, including .hg, to B
                 # - B inspects .hgrc and finds it to be clean
                 # - B then continues the merge and the malicious merge driver
                 #  gets invoked
                 if self.mergedriver != bits[0]:
                     raise error.ConfigError(
                         _("merge driver changed since merge started"),
                         hint=_("revert merge driver change or abort merge"))
                 self._mdstate = mdstate
             elif rtype in 'FD':
                 bits = record.split('\0')
                 self._state[bits[0]] = bits[1:]
             elif not rtype.islower():
                 raise error.Abort(_('unsupported merge state record: %s')
                                    % rtype)
         self._dirty = False
 
     def _readrecords(self):
         """Read merge state from disk and return a list of record (TYPE, data)
 
         We read data from both v1 and v2 files and decide which one to use.
 
         V1 has been used by version prior to 2.9.1 and contains less data than
         v2. We read both versions and check if no data in v2 contradicts
         v1. If there is not contradiction we can safely assume that both v1
         and v2 were written at the same time and use the extract data in v2. If
         there is contradiction we ignore v2 content as we assume an old version
         of Mercurial has overwritten the mergestate file and left an old v2
         file around.
 
         returns list of record [(TYPE, data), ...]"""
         v1records = self._readrecordsv1()
         v2records = self._readrecordsv2()
         if self._v1v2match(v1records, v2records):
             return v2records
         else:
             # v1 file is newer than v2 file, use it
             # we have to infer the "other" changeset of the merge
             # we cannot do better than that with v1 of the format
             mctx = self._repo[None].parents()[-1]
             v1records.append(('O', mctx.hex()))
             # add place holder "other" file node information
             # nobody is using it yet so we do no need to fetch the data
             # if mctx was wrong `mctx[bits[-2]]` may fails.
             for idx, r in enumerate(v1records):
                 if r[0] == 'F':
                     bits = r[1].split('\0')
                     bits.insert(-2, '')
                     v1records[idx] = (r[0], '\0'.join(bits))
             return v1records
 
     def _v1v2match(self, v1records, v2records):
         oldv2 = set() # old format version of v2 record
         for rec in v2records:
             if rec[0] == 'L':
                 oldv2.add(rec)
             elif rec[0] == 'F':
                 # drop the onode data (not contained in v1)
                 oldv2.add(('F', _droponode(rec[1])))
         for rec in v1records:
             if rec not in oldv2:
                 return False
         else:
             return True
 
     def _readrecordsv1(self):
         """read on disk merge state for version 1 file
 
         returns list of record [(TYPE, data), ...]
 
         Note: the "F" data from this file are one entry short
               (no "other file node" entry)
         """
         records = []
         try:
             f = self._repo.vfs(self.statepathv1)
             for i, l in enumerate(f):
                 if i == 0:
                     records.append(('L', l[:-1]))
                 else:
                     records.append(('F', l[:-1]))
             f.close()
         except IOError as err:
             if err.errno != errno.ENOENT:
                 raise
         return records
 
     def _readrecordsv2(self):
         """read on disk merge state for version 2 file
 
         returns list of record [(TYPE, data), ...]
         """
         records = []
         try:
             f = self._repo.vfs(self.statepathv2)
             data = f.read()
             off = 0
             end = len(data)
             while off < end:
                 rtype = data[off]
                 off += 1
                 length = _unpack('>I', data[off:(off + 4)])[0]
                 off += 4
                 record = data[off:(off + length)]
                 off += length
                 records.append((rtype, record))
             f.close()
         except IOError as err:
             if err.errno != errno.ENOENT:
                 raise
         return records
 
     @util.propertycache
     def mergedriver(self):
         return self._repo.ui.config('experimental', 'mergedriver')
 
     def active(self):
         """Whether mergestate is active.
 
         Returns True if there appears to be mergestate. This is a rough proxy
         for "is a merge in progress."
         """
         # Check local variables before looking at filesystem for performance
         # reasons.
         return bool(self._local) or bool(self._state) or \
                self._repo.vfs.exists(self.statepathv1) or \
                self._repo.vfs.exists(self.statepathv2)
 
     def commit(self):
         """Write current state on disk (if necessary)"""
         if self._dirty:
             records = []
             records.append(('L', hex(self._local)))
             records.append(('O', hex(self._other)))
             if self.mergedriver:
                 records.append(('m', '\0'.join([
                     self.mergedriver, self._mdstate])))
             for d, v in self._state.iteritems():
                 if v[0] == 'd':
                     records.append(('D', '\0'.join([d] + v)))
                 else:
                     records.append(('F', '\0'.join([d] + v)))
             self._writerecords(records)
             self._dirty = False
 
     def _writerecords(self, records):
         """Write current state on disk (both v1 and v2)"""
         self._writerecordsv1(records)
         self._writerecordsv2(records)
 
     def _writerecordsv1(self, records):
         """Write current state on disk in a version 1 file"""
         f = self._repo.vfs(self.statepathv1, 'w')
         irecords = iter(records)
         lrecords = irecords.next()
         assert lrecords[0] == 'L'
         f.write(hex(self._local) + '\n')
         for rtype, data in irecords:
             if rtype == 'F':
                 f.write('%s\n' % _droponode(data))
         f.close()
 
     def _writerecordsv2(self, records):
         """Write current state on disk in a version 2 file"""
         f = self._repo.vfs(self.statepathv2, 'w')
         for key, data in records:
             assert len(key) == 1
             format = '>sI%is' % len(data)
             f.write(_pack(format, key, len(data), data))
         f.close()
 
     def add(self, fcl, fco, fca, fd):
         """add a new (potentially?) conflicting file the merge state
         fcl: file context for local,
         fco: file context for remote,
         fca: file context for ancestors,
         fd:  file path of the resulting merge.
 
         note: also write the local version to the `.hg/merge` directory.
         """
         hash = util.sha1(fcl.path()).hexdigest()
         self._repo.vfs.write('merge/' + hash, fcl.data())
         self._state[fd] = ['u', hash, fcl.path(),
                            fca.path(), hex(fca.filenode()),
                            fco.path(), hex(fco.filenode()),
                            fcl.flags()]
         self._dirty = True
 
     def __contains__(self, dfile):
         return dfile in self._state
 
     def __getitem__(self, dfile):
         return self._state[dfile][0]
 
     def __iter__(self):
         return iter(sorted(self._state))
 
     def files(self):
         return self._state.keys()
 
     def mark(self, dfile, state):
         self._state[dfile][0] = state
         self._dirty = True
 
     def unresolved(self):
         """Obtain the paths of unresolved files."""
 
         for f, entry in self._state.items():
             if entry[0] == 'u':
                 yield f
 
     def driverresolved(self):
         """Obtain the paths of driver-resolved files."""
 
         for f, entry in self._state.items():
             if entry[0] == 'd':
                 yield f
 
     def _resolve(self, preresolve, dfile, wctx, labels=None):
         """rerun merge process for file path `dfile`"""
         if self[dfile] in 'rd':
             return True, 0
         stateentry = self._state[dfile]
         state, hash, lfile, afile, anode, ofile, onode, flags = stateentry
         octx = self._repo[self._other]
         fcd = wctx[dfile]
         fco = octx[ofile]
         fca = self._repo.filectx(afile, fileid=anode)
         # "premerge" x flags
         flo = fco.flags()
         fla = fca.flags()
         if 'x' in flags + flo + fla and 'l' not in flags + flo + fla:
             if fca.node() == nullid:
                 if preresolve:
                     self._repo.ui.warn(
                         _('warning: cannot merge flags for %s\n') % afile)
             elif flags == fla:
                 flags = flo
         if preresolve:
             # restore local
             f = self._repo.vfs('merge/' + hash)
             self._repo.wwrite(dfile, f.read(), flags)
             f.close()
             complete, r = filemerge.premerge(self._repo, self._local, lfile,
                                              fcd, fco, fca, labels=labels)
         else:
             complete, r = filemerge.filemerge(self._repo, self._local, lfile,
                                               fcd, fco, fca, labels=labels)
         if r is None:
             # no real conflict
             del self._state[dfile]
             self._dirty = True
         elif not r:
             self.mark(dfile, 'r')
         return complete, r
 
     def preresolve(self, dfile, wctx, labels=None):
         return self._resolve(True, dfile, wctx, labels=labels)
 
     def resolve(self, dfile, wctx, labels=None):
         """rerun merge process for file path `dfile`"""
         return self._resolve(False, dfile, wctx, labels=labels)[1]
 
 def _checkunknownfile(repo, wctx, mctx, f, f2=None):
     if f2 is None:
         f2 = f
     return (os.path.isfile(repo.wjoin(f))
         and repo.wvfs.audit.check(f)
         and repo.dirstate.normalize(f) not in repo.dirstate
         and mctx[f2].cmp(wctx[f]))
 
 def _checkunknownfiles(repo, wctx, mctx, force, actions):
     """
     Considers any actions that care about the presence of conflicting unknown
     files. For some actions, the result is to abort; for others, it is to
     choose a different action.
     """
     aborts = []
     if not force:
         for f, (m, args, msg) in actions.iteritems():
             if m in ('c', 'dc'):
                 if _checkunknownfile(repo, wctx, mctx, f):
                     aborts.append(f)
             elif m == 'dg':
                 if _checkunknownfile(repo, wctx, mctx, f, args[0]):
                     aborts.append(f)
 
     for f in sorted(aborts):
         repo.ui.warn(_("%s: untracked file differs\n") % f)
     if aborts:
         raise error.Abort(_("untracked files in working directory differ "
                            "from files in requested revision"))
 
     for f, (m, args, msg) in actions.iteritems():
         if m == 'c':
             actions[f] = ('g', args, msg)
         elif m == 'cm':
             fl2, anc = args
             different = _checkunknownfile(repo, wctx, mctx, f)
             if different:
                 actions[f] = ('m', (f, f, None, False, anc),
                               "remote differs from untracked local")
             else:
                 actions[f] = ('g', (fl2,), "remote created")
 
 def _forgetremoved(wctx, mctx, branchmerge):
     """
     Forget removed files
 
     If we're jumping between revisions (as opposed to merging), and if
     neither the working directory nor the target rev has the file,
     then we need to remove it from the dirstate, to prevent the
     dirstate from listing the file when it is no longer in the
     manifest.
 
     If we're merging, and the other revision has removed a file
     that is not present in the working directory, we need to mark it
     as removed.
     """
 
     actions = {}
     m = 'f'
     if branchmerge:
         m = 'r'
     for f in wctx.deleted():
         if f not in mctx:
             actions[f] = m, None, "forget deleted"
 
     if not branchmerge:
         for f in wctx.removed():
             if f not in mctx:
                 actions[f] = 'f', None, "forget removed"
 
     return actions
 
 def _checkcollision(repo, wmf, actions):
     # build provisional merged manifest up
     pmmf = set(wmf)
 
     if actions:
         # k, dr, e and rd are no-op
         for m in 'a', 'f', 'g', 'cd', 'dc':
             for f, args, msg in actions[m]:
                 pmmf.add(f)
         for f, args, msg in actions['r']:
             pmmf.discard(f)
         for f, args, msg in actions['dm']:
             f2, flags = args
             pmmf.discard(f2)
             pmmf.add(f)
         for f, args, msg in actions['dg']:
             pmmf.add(f)
         for f, args, msg in actions['m']:
             f1, f2, fa, move, anc = args
             if move:
                 pmmf.discard(f1)
             pmmf.add(f)
 
     # check case-folding collision in provisional merged manifest
     foldmap = {}
     for f in sorted(pmmf):
         fold = util.normcase(f)
         if fold in foldmap:
             raise error.Abort(_("case-folding collision between %s and %s")
                              % (f, foldmap[fold]))
         foldmap[fold] = f
 
     # check case-folding of directories
     foldprefix = unfoldprefix = lastfull = ''
     for fold, f in sorted(foldmap.items()):
         if fold.startswith(foldprefix) and not f.startswith(unfoldprefix):
             # the folded prefix matches but actual casing is different
             raise error.Abort(_("case-folding collision between "
                                 "%s and directory of %s") % (lastfull, f))
         foldprefix = fold + '/'
         unfoldprefix = f + '/'
         lastfull = f
 
 def manifestmerge(repo, wctx, p2, pa, branchmerge, force, partial,
                   acceptremote, followcopies):
     """
     Merge p1 and p2 with ancestor pa and generate merge action list
 
     branchmerge and force are as passed in to update
     partial = function to filter file lists
     acceptremote = accept the incoming changes without prompting
     """
 
     copy, movewithdir, diverge, renamedelete = {}, {}, {}, {}
 
     # manifests fetched in order are going to be faster, so prime the caches
     [x.manifest() for x in
      sorted(wctx.parents() + [p2, pa], key=lambda x: x.rev())]
 
     if followcopies:
         ret = copies.mergecopies(repo, wctx, p2, pa)
         copy, movewithdir, diverge, renamedelete = ret
 
     repo.ui.note(_("resolving manifests\n"))
     repo.ui.debug(" branchmerge: %s, force: %s, partial: %s\n"
                   % (bool(branchmerge), bool(force), bool(partial)))
     repo.ui.debug(" ancestor: %s, local: %s, remote: %s\n" % (pa, wctx, p2))
 
     m1, m2, ma = wctx.manifest(), p2.manifest(), pa.manifest()
     copied = set(copy.values())
     copied.update(movewithdir.values())
 
     if '.hgsubstate' in m1:
         # check whether sub state is modified
         for s in sorted(wctx.substate):
             if wctx.sub(s).dirty():
                 m1['.hgsubstate'] += '+'
                 break
 
     # Compare manifests
     diff = m1.diff(m2)
 
     actions = {}
     for f, ((n1, fl1), (n2, fl2)) in diff.iteritems():
         if partial and not partial(f):
             continue
         if n1 and n2: # file exists on both local and remote side
             if f not in ma:
                 fa = copy.get(f, None)
                 if fa is not None:
                     actions[f] = ('m', (f, f, fa, False, pa.node()),
                                   "both renamed from " + fa)
                 else:
                     actions[f] = ('m', (f, f, None, False, pa.node()),
                                   "both created")
             else:
                 a = ma[f]
                 fla = ma.flags(f)
                 nol = 'l' not in fl1 + fl2 + fla
                 if n2 == a and fl2 == fla:
                     actions[f] = ('k' , (), "remote unchanged")
                 elif n1 == a and fl1 == fla: # local unchanged - use remote
                     if n1 == n2: # optimization: keep local content
                         actions[f] = ('e', (fl2,), "update permissions")
                     else:
                         actions[f] = ('g', (fl2,), "remote is newer")
                 elif nol and n2 == a: # remote only changed 'x'
                     actions[f] = ('e', (fl2,), "update permissions")
                 elif nol and n1 == a: # local only changed 'x'
                     actions[f] = ('g', (fl1,), "remote is newer")
                 else: # both changed something
                     actions[f] = ('m', (f, f, f, False, pa.node()),
                                    "versions differ")
         elif n1: # file exists only on local side
             if f in copied:
                 pass # we'll deal with it on m2 side
             elif f in movewithdir: # directory rename, move local
                 f2 = movewithdir[f]
                 if f2 in m2:
                     actions[f2] = ('m', (f, f2, None, True, pa.node()),
                                    "remote directory rename, both created")
                 else:
                     actions[f2] = ('dm', (f, fl1),
                                    "remote directory rename - move from " + f)
             elif f in copy:
                 f2 = copy[f]
                 actions[f] = ('m', (f, f2, f2, False, pa.node()),
                               "local copied/moved from " + f2)
             elif f in ma: # clean, a different, no remote
                 if n1 != ma[f]:
                     if acceptremote:
                         actions[f] = ('r', None, "remote delete")
                     else:
                         actions[f] = ('cd', None,  "prompt changed/deleted")
                 elif n1[20:] == 'a':
                     # This extra 'a' is added by working copy manifest to mark
                     # the file as locally added. We should forget it instead of
                     # deleting it.
                     actions[f] = ('f', None, "remote deleted")
                 else:
                     actions[f] = ('r', None, "other deleted")
         elif n2: # file exists only on remote side
             if f in copied:
                 pass # we'll deal with it on m1 side
             elif f in movewithdir:
                 f2 = movewithdir[f]
                 if f2 in m1:
                     actions[f2] = ('m', (f2, f, None, False, pa.node()),
                                    "local directory rename, both created")
                 else:
                     actions[f2] = ('dg', (f, fl2),
                                    "local directory rename - get from " + f)
             elif f in copy:
                 f2 = copy[f]
                 if f2 in m2:
                     actions[f] = ('m', (f2, f, f2, False, pa.node()),
                                   "remote copied from " + f2)
                 else:
                     actions[f] = ('m', (f2, f, f2, True, pa.node()),
                                   "remote moved from " + f2)
             elif f not in ma:
                 # local unknown, remote created: the logic is described by the
                 # following table:
                 #
                 # force  branchmerge  different  |  action
                 #   n         *           *      |   create
                 #   y         n           *      |   create
                 #   y         y           n      |   create
                 #   y         y           y      |   merge
                 #
                 # Checking whether the files are different is expensive, so we
                 # don't do that when we can avoid it.
                 if not force:
                     actions[f] = ('c', (fl2,), "remote created")
                 elif not branchmerge:
                     actions[f] = ('c', (fl2,), "remote created")
                 else:
                     actions[f] = ('cm', (fl2, pa.node()),
                                   "remote created, get or merge")
             elif n2 != ma[f]:
                 if acceptremote:
                     actions[f] = ('c', (fl2,), "remote recreating")
                 else:
                     actions[f] = ('dc', (fl2,), "prompt deleted/changed")
 
     return actions, diverge, renamedelete
 
 def _resolvetrivial(repo, wctx, mctx, ancestor, actions):
     """Resolves false conflicts where the nodeid changed but the content
        remained the same."""
 
     for f, (m, args, msg) in actions.items():
         if m == 'cd' and f in ancestor and not wctx[f].cmp(ancestor[f]):
             # local did change but ended up with same content
             actions[f] = 'r', None, "prompt same"
         elif m == 'dc' and f in ancestor and not mctx[f].cmp(ancestor[f]):
             # remote did change but ended up with same content
             del actions[f] # don't get = keep local deleted
 
 def calculateupdates(repo, wctx, mctx, ancestors, branchmerge, force, partial,
                      acceptremote, followcopies):
     "Calculate the actions needed to merge mctx into wctx using ancestors"
 
     if len(ancestors) == 1: # default
         actions, diverge, renamedelete = manifestmerge(
             repo, wctx, mctx, ancestors[0], branchmerge, force, partial,
             acceptremote, followcopies)
         _checkunknownfiles(repo, wctx, mctx, force, actions)
 
     else: # only when merge.preferancestor=* - the default
         repo.ui.note(
             _("note: merging %s and %s using bids from ancestors %s\n") %
             (wctx, mctx, _(' and ').join(str(anc) for anc in ancestors)))
 
         # Call for bids
         fbids = {} # mapping filename to bids (action method to list af actions)
         diverge, renamedelete = None, None
         for ancestor in ancestors:
             repo.ui.note(_('\ncalculating bids for ancestor %s\n') % ancestor)
             actions, diverge1, renamedelete1 = manifestmerge(
                 repo, wctx, mctx, ancestor, branchmerge, force, partial,
                 acceptremote, followcopies)
             _checkunknownfiles(repo, wctx, mctx, force, actions)
 
             # Track the shortest set of warning on the theory that bid
             # merge will correctly incorporate more information
             if diverge is None or len(diverge1) < len(diverge):
                 diverge = diverge1
             if renamedelete is None or len(renamedelete) < len(renamedelete1):
                 renamedelete = renamedelete1
 
             for f, a in sorted(actions.iteritems()):
                 m, args, msg = a
                 repo.ui.debug(' %s: %s -> %s\n' % (f, msg, m))
                 if f in fbids:
                     d = fbids[f]
                     if m in d:
                         d[m].append(a)
                     else:
                         d[m] = [a]
                 else:
                     fbids[f] = {m: [a]}
 
         # Pick the best bid for each file
         repo.ui.note(_('\nauction for merging merge bids\n'))
         actions = {}
         for f, bids in sorted(fbids.items()):
             # bids is a mapping from action method to list af actions
             # Consensus?
             if len(bids) == 1: # all bids are the same kind of method
                 m, l = bids.items()[0]
                 if all(a == l[0] for a in l[1:]): # len(bids) is > 1
                     repo.ui.note(" %s: consensus for %s\n" % (f, m))
                     actions[f] = l[0]
                     continue
             # If keep is an option, just do it.
             if 'k' in bids:
                 repo.ui.note(" %s: picking 'keep' action\n" % f)
                 actions[f] = bids['k'][0]
                 continue
             # If there are gets and they all agree [how could they not?], do it.
             if 'g' in bids:
                 ga0 = bids['g'][0]
                 if all(a == ga0 for a in bids['g'][1:]):
                     repo.ui.note(" %s: picking 'get' action\n" % f)
                     actions[f] = ga0
                     continue
             # TODO: Consider other simple actions such as mode changes
             # Handle inefficient democrazy.
             repo.ui.note(_(' %s: multiple bids for merge action:\n') % f)
             for m, l in sorted(bids.items()):
                 for _f, args, msg in l:
                     repo.ui.note('  %s -> %s\n' % (msg, m))
             # Pick random action. TODO: Instead, prompt user when resolving
             m, l = bids.items()[0]
             repo.ui.warn(_(' %s: ambiguous merge - picked %s action\n') %
                          (f, m))
             actions[f] = l[0]
             continue
         repo.ui.note(_('end of auction\n\n'))
 
     _resolvetrivial(repo, wctx, mctx, ancestors[0], actions)
 
     if wctx.rev() is None:
         fractions = _forgetremoved(wctx, mctx, branchmerge)
         actions.update(fractions)
 
     return actions, diverge, renamedelete
 
 def batchremove(repo, actions):
     """apply removes to the working directory
 
     yields tuples for progress updates
     """
     verbose = repo.ui.verbose
     unlink = util.unlinkpath
     wjoin = repo.wjoin
     audit = repo.wvfs.audit
     i = 0
     for f, args, msg in actions:
         repo.ui.debug(" %s: %s -> r\n" % (f, msg))
         if verbose:
             repo.ui.note(_("removing %s\n") % f)
         audit(f)
         try:
             unlink(wjoin(f), ignoremissing=True)
         except OSError as inst:
             repo.ui.warn(_("update failed to remove %s: %s!\n") %
                          (f, inst.strerror))
         if i == 100:
             yield i, f
             i = 0
         i += 1
     if i > 0:
         yield i, f
 
 def batchget(repo, mctx, actions):
     """apply gets to the working directory
 
     mctx is the context to get from
 
     yields tuples for progress updates
     """
     verbose = repo.ui.verbose
     fctx = mctx.filectx
     wwrite = repo.wwrite
     i = 0
     for f, args, msg in actions:
         repo.ui.debug(" %s: %s -> g\n" % (f, msg))
         if verbose:
             repo.ui.note(_("getting %s\n") % f)
         wwrite(f, fctx(f).data(), args[0])
         if i == 100:
             yield i, f
             i = 0
         i += 1
     if i > 0:
         yield i, f
 
 def applyupdates(repo, actions, wctx, mctx, overwrite, labels=None):
     """apply the merge action list to the working directory
 
     wctx is the working copy context
     mctx is the context to be merged into the working copy
 
     Return a tuple of counts (updated, merged, removed, unresolved) that
     describes how many files were affected by the update.
     """
 
     updated, merged, removed, unresolved = 0, 0, 0, 0
     ms = mergestate(repo)
     ms.reset(wctx.p1().node(), mctx.node())
     moves = []
     for m, l in actions.items():
         l.sort()
 
     # prescan for merges
     for f, args, msg in actions['m']:
         f1, f2, fa, move, anc = args
         if f == '.hgsubstate': # merged internally
             continue
         repo.ui.debug(" preserving %s for resolve of %s\n" % (f1, f))
         fcl = wctx[f1]
         fco = mctx[f2]
         actx = repo[anc]
         if fa in actx:
             fca = actx[fa]
         else:
             fca = repo.filectx(f1, fileid=nullrev)
         ms.add(fcl, fco, fca, f)
         if f1 != f and move:
             moves.append(f1)
 
     audit = repo.wvfs.audit
     _updating = _('updating')
     _files = _('files')
     progress = repo.ui.progress
 
     # remove renamed files after safely stored
     for f in moves:
         if os.path.lexists(repo.wjoin(f)):
             repo.ui.debug("removing %s\n" % f)
             audit(f)
             util.unlinkpath(repo.wjoin(f))
 
     numupdates = sum(len(l) for m, l in actions.items() if m != 'k')
 
     if [a for a in actions['r'] if a[0] == '.hgsubstate']:
         subrepo.submerge(repo, wctx, mctx, wctx, overwrite)
 
     # remove in parallel (must come first)
     z = 0
     prog = worker.worker(repo.ui, 0.001, batchremove, (repo,), actions['r'])
     for i, item in prog:
         z += i
         progress(_updating, z, item=item, total=numupdates, unit=_files)
     removed = len(actions['r'])
 
     # get in parallel
     prog = worker.worker(repo.ui, 0.001, batchget, (repo, mctx), actions['g'])
     for i, item in prog:
         z += i
         progress(_updating, z, item=item, total=numupdates, unit=_files)
     updated = len(actions['g'])
 
     if [a for a in actions['g'] if a[0] == '.hgsubstate']:
         subrepo.submerge(repo, wctx, mctx, wctx, overwrite)
 
     # forget (manifest only, just log it) (must come first)
     for f, args, msg in actions['f']:
         repo.ui.debug(" %s: %s -> f\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
 
     # re-add (manifest only, just log it)
     for f, args, msg in actions['a']:
         repo.ui.debug(" %s: %s -> a\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
 
     # keep (noop, just log it)
     for f, args, msg in actions['k']:
         repo.ui.debug(" %s: %s -> k\n" % (f, msg))
         # no progress
 
     # directory rename, move local
     for f, args, msg in actions['dm']:
         repo.ui.debug(" %s: %s -> dm\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
         f0, flags = args
         repo.ui.note(_("moving %s to %s\n") % (f0, f))
         audit(f)
         repo.wwrite(f, wctx.filectx(f0).data(), flags)
         util.unlinkpath(repo.wjoin(f0))
         updated += 1
 
     # local directory rename, get
     for f, args, msg in actions['dg']:
         repo.ui.debug(" %s: %s -> dg\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
         f0, flags = args
         repo.ui.note(_("getting %s to %s\n") % (f0, f))
         repo.wwrite(f, mctx.filectx(f0).data(), flags)
         updated += 1
 
     # exec
     for f, args, msg in actions['e']:
         repo.ui.debug(" %s: %s -> e\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
         flags, = args
         audit(f)
         util.setflags(repo.wjoin(f), 'l' in flags, 'x' in flags)
         updated += 1
 
     # premerge
     tocomplete = []
     for f, args, msg in actions['m']:
         repo.ui.debug(" %s: %s -> m (premerge)\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
         if f == '.hgsubstate': # subrepo states need updating
             subrepo.submerge(repo, wctx, mctx, wctx.ancestor(mctx),
                              overwrite)
             continue
         audit(f)
         complete, r = ms.preresolve(f, wctx, labels=labels)
         if complete:
             if r is not None and r > 0:
                 unresolved += 1
             else:
                 if r is None:
                     updated += 1
                 else:
                     merged += 1
         else:
             numupdates += 1
             tocomplete.append((f, args, msg))
 
     # merge
     for f, args, msg in tocomplete:
         repo.ui.debug(" %s: %s -> m (merge)\n" % (f, msg))
         z += 1
         progress(_updating, z, item=f, total=numupdates, unit=_files)
         r = ms.resolve(f, wctx, labels=labels)
         if r is not None and r > 0:
             unresolved += 1
         else:
             if r is None:
                 updated += 1
             else:
                 merged += 1
 
     ms.commit()
     progress(_updating, None, total=numupdates, unit=_files)
 
     return updated, merged, removed, unresolved
 
 def recordupdates(repo, actions, branchmerge):
     "record merge actions to the dirstate"
     # remove (must come first)
     for f, args, msg in actions['r']:
         if branchmerge:
             repo.dirstate.remove(f)
         else:
             repo.dirstate.drop(f)
 
     # forget (must come first)
     for f, args, msg in actions['f']:
         repo.dirstate.drop(f)
 
     # re-add
     for f, args, msg in actions['a']:
         if not branchmerge:
             repo.dirstate.add(f)
 
     # exec change
     for f, args, msg in actions['e']:
         repo.dirstate.normallookup(f)
 
     # keep
     for f, args, msg in actions['k']:
         pass
 
     # get
     for f, args, msg in actions['g']:
         if branchmerge:
             repo.dirstate.otherparent(f)
         else:
             repo.dirstate.normal(f)
 
     # merge
     for f, args, msg in actions['m']:
         f1, f2, fa, move, anc = args
         if branchmerge:
             # We've done a branch merge, mark this file as merged
             # so that we properly record the merger later
             repo.dirstate.merge(f)
             if f1 != f2: # copy/rename
                 if move:
                     repo.dirstate.remove(f1)
                 if f1 != f:
                     repo.dirstate.copy(f1, f)
                 else:
                     repo.dirstate.copy(f2, f)
         else:
             # We've update-merged a locally modified file, so
             # we set the dirstate to emulate a normal checkout
             # of that file some time in the past. Thus our
             # merge will appear as a normal local file
             # modification.
             if f2 == f: # file not locally copied/moved
                 repo.dirstate.normallookup(f)
             if move:
                 repo.dirstate.drop(f1)
 
     # directory rename, move local
     for f, args, msg in actions['dm']:
         f0, flag = args
         if branchmerge:
             repo.dirstate.add(f)
             repo.dirstate.remove(f0)
             repo.dirstate.copy(f0, f)
         else:
             repo.dirstate.normal(f)
             repo.dirstate.drop(f0)
 
     # directory rename, get
     for f, args, msg in actions['dg']:
         f0, flag = args
         if branchmerge:
             repo.dirstate.add(f)
             repo.dirstate.copy(f0, f)
         else:
             repo.dirstate.normal(f)
 
 def update(repo, node, branchmerge, force, partial, ancestor=None,
            mergeancestor=False, labels=None):
     """
     Perform a merge between the working directory and the given node
 
     node = the node to update to, or None if unspecified
     branchmerge = whether to merge between branches
     force = whether to force branch merging or file overwriting
     partial = a function to filter file lists (dirstate not updated)
     mergeancestor = whether it is merging with an ancestor. If true,
       we should accept the incoming changes for any prompts that occur.
       If false, merging with an ancestor (fast-forward) is only allowed
       between different named branches. This flag is used by rebase extension
       as a temporary fix and should be avoided in general.
 
     The table below shows all the behaviors of the update command
     given the -c and -C or no options, whether the working directory
     is dirty, whether a revision is specified, and the relationship of
     the parent rev to the target rev (linear, on the same named
     branch, or on another named branch).
 
     This logic is tested by test-update-branches.t.
 
     -c  -C  dirty  rev  |  linear   same  cross
      n   n    n     n   |    ok     (1)     x
      n   n    n     y   |    ok     ok     ok
      n   n    y     n   |   merge   (2)    (2)
      n   n    y     y   |   merge   (3)    (3)
      n   y    *     *   |    ---  discard  ---
      y   n    y     *   |    ---    (4)    ---
      y   n    n     *   |    ---    ok     ---
      y   y    *     *   |    ---    (5)    ---
 
     x = can't happen
     * = don't-care
     1 = abort: not a linear update (merge or update --check to force update)
     2 = abort: uncommitted changes (commit and merge, or update --clean to
                  discard changes)
     3 = abort: uncommitted changes (commit or update --clean to discard changes)
     4 = abort: uncommitted changes (checked in commands.py)
     5 = incompatible options (checked in commands.py)
 
     Return the same tuple as applyupdates().
     """
 
     onode = node
     wlock = repo.wlock()
     try:
         wc = repo[None]
         pl = wc.parents()
         p1 = pl[0]
         pas = [None]
         if ancestor is not None:
             pas = [repo[ancestor]]
 
         if node is None:
             if (repo.ui.configbool('devel', 'all-warnings')
                     or repo.ui.configbool('devel', 'oldapi')):
                 repo.ui.develwarn('update with no target')
             rev, _mark, _act = destutil.destupdate(repo)
             node = repo[rev].node()
 
         overwrite = force and not branchmerge
 
         p2 = repo[node]
         if pas[0] is None:
             if repo.ui.configlist('merge', 'preferancestor', ['*']) == ['*']:
                 cahs = repo.changelog.commonancestorsheads(p1.node(), p2.node())
                 pas = [repo[anc] for anc in (sorted(cahs) or [nullid])]
             else:
                 pas = [p1.ancestor(p2, warn=branchmerge)]
 
         fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)
 
         ### check phase
         if not overwrite and len(pl) > 1:
             raise error.Abort(_("outstanding uncommitted merge"))
         if branchmerge:
             if pas == [p2]:
                 raise error.Abort(_("merging with a working directory ancestor"
                                    " has no effect"))
             elif pas == [p1]:
                 if not mergeancestor and p1.branch() == p2.branch():
                     raise error.Abort(_("nothing to merge"),
                                      hint=_("use 'hg update' "
                                             "or check 'hg heads'"))
             if not force and (wc.files() or wc.deleted()):
                 raise error.Abort(_("uncommitted changes"),
                                  hint=_("use 'hg status' to list changes"))
             for s in sorted(wc.substate):
                 wc.sub(s).bailifchanged()
 
         elif not overwrite:
             if p1 == p2: # no-op update
                 # call the hooks and exit early
                 repo.hook('preupdate', throw=True, parent1=xp2, parent2='')
                 repo.hook('update', parent1=xp2, parent2='', error=0)
                 return 0, 0, 0, 0
 
             if pas not in ([p1], [p2]):  # nonlinear
                 dirty = wc.dirty(missing=True)
                 if dirty or onode is None:
                     # Branching is a bit strange to ensure we do the minimal
                     # amount of call to obsolete.background.
                     foreground = obsolete.foreground(repo, [p1.node()])
                     # note: the <node> variable contains a random identifier
                     if repo[node].node() in foreground:
                         pas = [p1]  # allow updating to successors
                     elif dirty:
                         msg = _("uncommitted changes")
                         if onode is None:
                             hint = _("commit and merge, or update --clean to"
                                      " discard changes")
                         else:
                             hint = _("commit or update --clean to discard"
                                      " changes")
                         raise error.Abort(msg, hint=hint)
                     else:  # node is none
                         msg = _("not a linear update")
                         hint = _("merge or update --check to force update")
                         raise error.Abort(msg, hint=hint)
                 else:
                     # Allow jumping branches if clean and specific rev given
                     pas = [p1]
 
         # deprecated config: merge.followcopies
         followcopies = False
         if overwrite:
             pas = [wc]
         elif pas == [p2]: # backwards
             pas = [wc.p1()]
         elif not branchmerge and not wc.dirty(missing=True):
             pass
         elif pas[0] and repo.ui.configbool('merge', 'followcopies', True):
             followcopies = True
 
         ### calculate phase
         actionbyfile, diverge, renamedelete = calculateupdates(
             repo, wc, p2, pas, branchmerge, force, partial, mergeancestor,
             followcopies)
         # Convert to dictionary-of-lists format
         actions = dict((m, []) for m in 'a f g cd dc r dm dg m e k'.split())
         for f, (m, args, msg) in actionbyfile.iteritems():
             if m not in actions:
                 actions[m] = []
             actions[m].append((f, args, msg))
 
         if not util.checkcase(repo.path):
             # check collision between files only in p2 for clean update
             if (not branchmerge and
                 (force or not wc.dirty(missing=True, branch=False))):
                 _checkcollision(repo, p2.manifest(), None)
             else:
                 _checkcollision(repo, wc.manifest(), actions)
 
         # Prompt and create actions. TODO: Move this towards resolve phase.
         for f, args, msg in sorted(actions['cd']):
             if repo.ui.promptchoice(
                 _("local changed %s which remote deleted\n"
                   "use (c)hanged version or (d)elete?"
                   "$$ &Changed $$ &Delete") % f, 0):
                 actions['r'].append((f, None, "prompt delete"))
             else:
                 actions['a'].append((f, None, "prompt keep"))
         del actions['cd'][:]
 
         for f, args, msg in sorted(actions['dc']):
             flags, = args
             if repo.ui.promptchoice(
                 _("remote changed %s which local deleted\n"
                   "use (c)hanged version or leave (d)eleted?"
                   "$$ &Changed $$ &Deleted") % f, 0) == 0:
                 actions['g'].append((f, (flags,), "prompt recreating"))
         del actions['dc'][:]
 
         ### apply phase
         if not branchmerge: # just jump to the new rev
             fp1, fp2, xp1, xp2 = fp2, nullid, xp2, ''
         if not partial:
             repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
             # note that we're in the middle of an update
             repo.vfs.write('updatestate', p2.hex())
 
         stats = applyupdates(repo, actions, wc, p2, overwrite, labels=labels)
 
         # divergent renames
         for f, fl in sorted(diverge.iteritems()):
             repo.ui.warn(_("note: possible conflict - %s was renamed "
                            "multiple times to:\n") % f)
             for nf in fl:
                 repo.ui.warn(" %s\n" % nf)
 
         # rename and delete
         for f, fl in sorted(renamedelete.iteritems()):
             repo.ui.warn(_("note: possible conflict - %s was deleted "
                            "and renamed to:\n") % f)
             for nf in fl:
                 repo.ui.warn(" %s\n" % nf)
 
         if not partial:
             repo.dirstate.beginparentchange()
             repo.setparents(fp1, fp2)
             recordupdates(repo, actions, branchmerge)
             # update completed, clear state
             util.unlink(repo.join('updatestate'))
 
             if not branchmerge:
                 repo.dirstate.setbranch(p2.branch())
             repo.dirstate.endparentchange()
     finally:
         wlock.release()
 
     if not partial:
-        def updatehook(parent1=xp1, parent2=xp2, error=stats[3]):
-            repo.hook('update', parent1=parent1, parent2=parent2, error=error)
-        repo._afterlock(updatehook)
+        repo.hook('update', parent1=xp1, parent2=xp2, error=stats[3])
     return stats
 
 def graft(repo, ctx, pctx, labels):
     """Do a graft-like merge.
 
     This is a merge where the merge ancestor is chosen such that one
     or more changesets are grafted onto the current changeset. In
     addition to the merge, this fixes up the dirstate to include only
     a single parent and tries to duplicate any renames/copies
     appropriately.
 
     ctx - changeset to rebase
     pctx - merge base, usually ctx.p1()
     labels - merge labels eg ['local', 'graft']
 
     """
     # If we're grafting a descendant onto an ancestor, be sure to pass
     # mergeancestor=True to update. This does two things: 1) allows the merge if
     # the destination is the same as the parent of the ctx (so we can use graft
     # to copy commits), and 2) informs update that the incoming changes are
     # newer than the destination so it doesn't prompt about "remote changed foo
     # which local deleted".
     mergeancestor = repo.changelog.isancestor(repo['.'].node(), ctx.node())
 
     stats = update(repo, ctx.node(), True, True, False, pctx.node(),
                    mergeancestor=mergeancestor, labels=labels)
 
     # drop the second merge parent
     repo.dirstate.beginparentchange()
     repo.setparents(repo['.'].node(), nullid)
     repo.dirstate.write(repo.currenttransaction())
     # fix up dirstate for copies and renames
     copies.duplicatecopies(repo, ctx.rev(), pctx.rev())
     repo.dirstate.endparentchange()
     return stats

tests/test-backout.t

@@ -1,706 +1,741 b''
   $ hg init basic
   $ cd basic
 
 should complain
 
   $ hg backout
   abort: please specify a revision to backout
   [255]
   $ hg backout -r 0 0
   abort: please specify just one revision
   [255]
 
 basic operation
 (this also tests that editor is invoked if the commit message is not
 specified explicitly)
 
   $ echo a > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo b >> a
   $ hg commit -d '1 0' -m b
 
   $ hg status --rev tip --rev "tip^1"
   M a
   $ HGEDITOR=cat hg backout -d '2 0' tip --tool=true
   reverting a
   Backed out changeset a820f4f40a57
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: changed a
   changeset 2:2929462c3dff backs out changeset 1:a820f4f40a57
   $ cat a
   a
   $ hg summary
   parent: 2:2929462c3dff tip
    Backed out changeset a820f4f40a57
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 commit option
 
   $ cd ..
   $ hg init commit
   $ cd commit
 
   $ echo tomatoes > a
   $ hg add a
   $ hg commit -d '0 0' -m tomatoes
 
   $ echo chair > b
   $ hg add b
   $ hg commit -d '1 0' -m chair
 
   $ echo grapes >> a
   $ hg commit -d '2 0' -m grapes
 
   $ hg backout --commit -d '4 0' 1 --tool=:fail
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   changeset 3:1c2161e97c0a backs out changeset 1:22cb4f70d813
   $ hg summary
   parent: 3:1c2161e97c0a tip
    Backed out changeset 22cb4f70d813
   branch: default
   commit: (clean)
   update: (current)
   phases: 4 draft
 
   $ echo ypples > a
   $ hg commit -d '5 0' -m ypples
 
   $ hg backout --commit -d '6 0' 2 --tool=:fail
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ hg summary
   parent: 4:ed99997b793d tip
    ypples
   branch: default
   commit: 1 unresolved (clean)
   update: (current)
   phases: 5 draft
 
 file that was removed is recreated
 (this also tests that editor is not invoked if the commit message is
 specified explicitly)
 
   $ cd ..
   $ hg init remove
   $ cd remove
 
   $ echo content > a
   $ hg commit -d '0 0' -A -m a
   adding a
 
   $ hg rm a
   $ hg commit -d '1 0' -m b
 
   $ HGEDITOR=cat hg backout -d '2 0' tip --tool=true -m "Backed out changeset 76862dcce372"
   adding a
   changeset 2:de31bdc76c0d backs out changeset 1:76862dcce372
   $ cat a
   content
   $ hg summary
   parent: 2:de31bdc76c0d tip
    Backed out changeset 76862dcce372
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 backout of backout is as if nothing happened
 
   $ hg backout -d '3 0' --merge tip --tool=true
   removing a
   changeset 3:7f6d0f120113 backs out changeset 2:de31bdc76c0d
   $ test -f a
   [1]
   $ hg summary
   parent: 3:7f6d0f120113 tip
    Backed out changeset de31bdc76c0d
   branch: default
   commit: (clean)
   update: (current)
   phases: 4 draft
 
 Test that 'hg rollback' restores dirstate just before opening
 transaction: in-memory dirstate changes should be written into
 '.hg/journal.dirstate' as expected.
 
   $ echo 'removed soon' > b
   $ hg commit -A -d '4 0' -m 'prepare for subsequent removing'
   adding b
   $ echo 'newly added' > c
   $ hg add c
   $ hg remove b
   $ hg commit -d '5 0' -m 'prepare for subsequent backout'
   $ touch -t 200001010000 c
   $ hg status -A
   C c
   $ hg debugstate --nodates
   n 644         12 set                 c
   $ hg backout -d '6 0' -m 'to be rollback-ed soon' -r .
   adding b
   removing c
   changeset 6:4bfec048029d backs out changeset 5:fac0b729a654
   $ hg rollback -q
   $ hg status -A
   A b
   R c
   $ hg debugstate --nodates
   a   0         -1 unset               b
   r   0          0 set                 c
 
 across branch
 
   $ cd ..
   $ hg init branch
   $ cd branch
   $ echo a > a
   $ hg ci -Am0
   adding a
   $ echo b > b
   $ hg ci -Am1
   adding b
   $ hg co -C 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg summary
   parent: 0:f7b1eb17ad24 
    0
   branch: default
   commit: (clean)
   update: 1 new changesets (update)
   phases: 2 draft
 
 should fail
 
   $ hg backout 1
   abort: cannot backout change that is not an ancestor
   [255]
   $ echo c > c
   $ hg ci -Am2
   adding c
   created new head
   $ hg summary
   parent: 2:db815d6d32e6 tip
    2
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 3 draft
 
 should fail
 
   $ hg backout 1
   abort: cannot backout change that is not an ancestor
   [255]
   $ hg summary
   parent: 2:db815d6d32e6 tip
    2
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 3 draft
 
 backout with merge
 
   $ cd ..
   $ hg init merge
   $ cd merge
 
   $ echo line 1 > a
   $ echo line 2 >> a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ hg summary
   parent: 0:59395513a13a tip
    a
   branch: default
   commit: (clean)
   update: (current)
   phases: 1 draft
 
 remove line 1
 
   $ echo line 2 > a
   $ hg commit -d '1 0' -m b
 
   $ echo line 3 >> a
   $ hg commit -d '2 0' -m c
 
   $ hg backout --merge -d '3 0' 1 --tool=true
   reverting a
   created new head
   changeset 3:26b8ccb9ad91 backs out changeset 1:5a50a024c182
   merging with changeset 3:26b8ccb9ad91
   merging a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg commit -d '4 0' -m d
   $ hg summary
   parent: 4:c7df5e0b9c09 tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 check line 1 is back
 
   $ cat a
   line 1
   line 2
   line 3
 
 Test visibility of in-memory dirstate changes outside transaction to
 external hook process
 
   $ cat > $TESTTMP/checkvisibility.sh <<EOF
   > echo "==== \$1:"
   > hg parents --template "{rev}:{node|short}\n"
   > echo "===="
   > EOF
 
 "hg backout --merge REV1" at REV2 below implies steps below:
 
 (1) update to REV1 (REV2 => REV1)
 (2) revert by REV1^1
 (3) commit backnig out revision (REV3)
 (4) update to REV2 (REV3 => REV2)
 (5) merge with REV3 (REV2 => REV2, REV3)
 
 == test visibility to external preupdate hook
 
   $ hg update -q -C 2
   $ hg --config extensions.strip= strip 3
   saved backup bundle to * (glob)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
   > EOF
 
 ("-m" is needed to avoid writing dirstte changes out at other than
 invocation of the hook to be examined)
 
   $ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
   ==== preupdate:
   2:6ea3f2a197a2
   ====
   reverting a
   created new head
   changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
   ==== preupdate:
   3:d92a3f57f067
   ====
   merging with changeset 3:d92a3f57f067
   ==== preupdate:
   2:6ea3f2a197a2
   ====
   merging a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility =
   > EOF
 
+== test visibility to external update hook
+
+  $ hg update -q -C 2
+  $ hg --config extensions.strip= strip 3
+  saved backup bundle to * (glob)
+
+  $ cat >> .hg/hgrc <<EOF
+  > [hooks]
+  > update.visibility = sh $TESTTMP/checkvisibility.sh update
+  > EOF
+
+  $ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
+  ==== update:
+  1:5a50a024c182
+  ====
+  reverting a
+  created new head
+  changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
+  ==== update:
+  2:6ea3f2a197a2
+  ====
+  merging with changeset 3:d92a3f57f067
+  merging a
+  ==== update:
+  2:6ea3f2a197a2
+  3:d92a3f57f067
+  ====
+  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+
+  $ cat >> .hg/hgrc <<EOF
+  > [hooks]
+  > update.visibility =
+  > EOF
+
   $ cd ..
 
 backout should not back out subsequent changesets
 
   $ hg init onecs
   $ cd onecs
   $ echo 1 > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo 2 >> a
   $ hg commit -d '1 0' -m b
   $ echo 1 > b
   $ hg commit -d '2 0' -A -m c
   adding b
   $ hg summary
   parent: 2:882396649954 tip
    c
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 without --merge
   $ hg backout -d '3 0' 1 --tool=true
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   changeset 22bca4c721e5 backed out, don't forget to commit.
   $ hg locate b
   b
   $ hg update -C tip
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg locate b
   b
   $ hg summary
   parent: 2:882396649954 tip
    c
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 with --merge
   $ hg backout --merge -d '3 0' 1 --tool=true
   reverting a
   created new head
   changeset 3:3202beb76721 backs out changeset 1:22bca4c721e5
   merging with changeset 3:3202beb76721
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg locate b
   b
   $ hg update -C tip
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg locate b
   [1]
 
   $ cd ..
   $ hg init m
   $ cd m
   $ echo a > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo b > b
   $ hg commit -d '1 0' -A -m b
   adding b
   $ echo c > c
   $ hg commit -d '2 0' -A -m b
   adding c
   $ hg update 1
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo d > d
   $ hg commit -d '3 0' -A -m c
   adding d
   created new head
   $ hg merge 2
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg commit -d '4 0' -A -m d
   $ hg summary
   parent: 4:b2f3bb92043e tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 backout of merge should fail
 
   $ hg backout 4
   abort: cannot backout a merge changeset
   [255]
 
 backout of merge with bad parent should fail
 
   $ hg backout --parent 0 4
   abort: cb9a9f314b8b is not a parent of b2f3bb92043e
   [255]
 
 backout of non-merge with parent should fail
 
   $ hg backout --parent 0 3
   abort: cannot use --parent on non-merge changeset
   [255]
 
 backout with valid parent should be ok
 
   $ hg backout -d '5 0' --parent 2 4 --tool=true
   removing d
   changeset 5:10e5328c8435 backs out changeset 4:b2f3bb92043e
   $ hg summary
   parent: 5:10e5328c8435 tip
    Backed out changeset b2f3bb92043e
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
 
   $ hg rollback
   repository tip rolled back to revision 4 (undo commit)
   working directory now based on revision 4
   $ hg update -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg summary
   parent: 4:b2f3bb92043e tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
   $ hg backout -d '6 0' --parent 3 4 --tool=true
   removing c
   changeset 5:033590168430 backs out changeset 4:b2f3bb92043e
   $ hg summary
   parent: 5:033590168430 tip
    Backed out changeset b2f3bb92043e
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
 
   $ cd ..
 
 named branches
 
   $ hg init named_branches
   $ cd named_branches
 
   $ echo default > default
   $ hg ci -d '0 0' -Am default
   adding default
   $ hg branch branch1
   marked working directory as branch branch1
   (branches are permanent and global, did you want a bookmark?)
   $ echo branch1 > file1
   $ hg ci -d '1 0' -Am file1
   adding file1
   $ hg branch branch2
   marked working directory as branch branch2
   $ echo branch2 > file2
   $ hg ci -d '2 0' -Am file2
   adding file2
 
 without --merge
   $ hg backout -r 1 --tool=true
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   changeset bf1602f437f3 backed out, don't forget to commit.
   $ hg branch
   branch2
   $ hg status -A
   R file1
   C default
   C file2
   $ hg summary
   parent: 2:45bbcd363bf0 tip
    file2
   branch: branch2
   commit: 1 removed
   update: (current)
   phases: 3 draft
 
 with --merge
 (this also tests that editor is invoked if '--edit' is specified
 explicitly regardless of '--message')
 
   $ hg update -qC
   $ HGEDITOR=cat hg backout --merge -d '3 0' -r 1 -m 'backout on branch1' --tool=true --edit
   removing file1
   backout on branch1
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'branch2'
   HG: removed file1
   created new head
   changeset 3:d4e8f6db59fb backs out changeset 1:bf1602f437f3
   merging with changeset 3:d4e8f6db59fb
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg summary
   parent: 2:45bbcd363bf0 
    file2
   parent: 3:d4e8f6db59fb tip
    backout on branch1
   branch: branch2
   commit: 1 removed (merge)
   update: (current)
   phases: 4 draft
   $ hg update -q -C 2
 
 on branch2 with branch1 not merged, so file1 should still exist:
 
   $ hg id
   45bbcd363bf0 (branch2)
   $ hg st -A
   C default
   C file1
   C file2
   $ hg summary
   parent: 2:45bbcd363bf0 
    file2
   branch: branch2
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 4 draft
 
 on branch2 with branch1 merged, so file1 should be gone:
 
   $ hg merge
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -d '4 0' -m 'merge backout of branch1'
   $ hg id
   22149cdde76d (branch2) tip
   $ hg st -A
   C default
   C file2
   $ hg summary
   parent: 4:22149cdde76d tip
    merge backout of branch1
   branch: branch2
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 on branch1, so no file1 and file2:
 
   $ hg co -C branch1
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg id
   bf1602f437f3 (branch1)
   $ hg st -A
   C default
   C file1
   $ hg summary
   parent: 1:bf1602f437f3 
    file1
   branch: branch1
   commit: (clean)
   update: (current)
   phases: 5 draft
 
   $ cd ..
 
 backout of empty changeset (issue4190)
 
   $ hg init emptycommit
   $ cd emptycommit
 
   $ touch file1
   $ hg ci -Aqm file1
   $ hg branch -q branch1
   $ hg ci -qm branch1
   $ hg backout -v 1
   resolving manifests
   nothing changed
   [1]
 
   $ cd ..
 
 
 Test usage of `hg resolve` in case of conflict
 (issue4163)
 
   $ hg init issue4163
   $ cd issue4163
   $ touch foo
   $ hg add foo
   $ cat > foo << EOF
   > one
   > two
   > three
   > four
   > five
   > six
   > seven
   > height
   > nine
   > ten
   > EOF
   $ hg ci -m 'initial'
   $ cat > foo << EOF
   > one
   > two
   > THREE
   > four
   > five
   > six
   > seven
   > height
   > nine
   > ten
   > EOF
   $ hg ci -m 'capital three'
   $ cat > foo << EOF
   > one
   > two
   > THREE
   > four
   > five
   > six
   > seven
   > height
   > nine
   > TEN
   > EOF
   $ hg ci -m 'capital ten'
   $ hg backout -r 'desc("capital three")' --tool internal:fail
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ hg status
   $ hg debugmergestate
   * version 2 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
   other: a30dd8addae3ce71b8667868478542bc417439e6
   file: foo (state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
     other path: foo (node f50039b486d6fa1a90ae51778388cad161f425ee)
   $ mv .hg/merge/state2 .hg/merge/state2-moved
   $ hg debugmergestate
   * version 1 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
   file: foo (state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
     other path: foo (node not stored in v1 format)
   $ mv .hg/merge/state2-moved .hg/merge/state2
   $ hg resolve -l  # still unresolved
   U foo
   $ hg summary
   parent: 2:b71750c4b0fd tip
    capital ten
   branch: default
   commit: 1 unresolved (clean)
   update: (current)
   phases: 3 draft
   $ hg resolve --all --debug
   picked tool ':merge' for foo (binary False symlink False)
   merging foo
   my foo@b71750c4b0fd+ other foo@a30dd8addae3 ancestor foo@913609522437
    premerge successful
   (no more unresolved files)
   $ hg status
   M foo
   ? foo.orig
   $ hg resolve -l
   R foo
   $ hg summary
   parent: 2:b71750c4b0fd tip
    capital ten
   branch: default
   commit: 1 modified, 1 unknown
   update: (current)
   phases: 3 draft
   $ cat foo
   one
   two
   three
   four
   five
   six
   seven
   height
   nine
   TEN
 
 

tests/test-blackbox.t

@@ -1,147 +1,147 b''
 setup
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > blackbox=
   > mock=$TESTDIR/mockblackbox.py
   > mq=
   > EOF
   $ hg init blackboxtest
   $ cd blackboxtest
 
 command, exit codes, and duration
 
   $ echo a > a
   $ hg add a
   $ hg blackbox
   1970/01/01 00:00:00 bob (*)> add a (glob)
   1970/01/01 00:00:00 bob (*)> add a exited 0 after * seconds (glob)
 
 incoming change tracking
 
 create two heads to verify that we only see one change in the log later
   $ hg commit -ma
   $ hg up null
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo b > b
   $ hg commit -Amb
   adding b
   created new head
 
 clone, commit, pull
   $ hg clone . ../blackboxtest2
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo c > c
   $ hg commit -Amc
   adding c
   $ cd ../blackboxtest2
   $ hg pull
   pulling from $TESTTMP/blackboxtest (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   (run 'hg update' to get a working copy)
   $ hg blackbox -l 5
   1970/01/01 00:00:00 bob (*)> pull (glob)
   1970/01/01 00:00:00 bob (*)> updated served branch cache in ?.???? seconds (glob)
   1970/01/01 00:00:00 bob (*)> wrote served branch cache with 1 labels and 2 nodes (glob)
   1970/01/01 00:00:00 bob (*)> 1 incoming changes - new heads: d02f48003e62 (glob)
   1970/01/01 00:00:00 bob (*)> pull exited 0 after * seconds (glob)
 
 we must not cause a failure if we cannot write to the log
 
   $ hg rollback
   repository tip rolled back to revision 1 (undo pull)
 
 #if unix-permissions no-root
   $ chmod 000 .hg/blackbox.log
   $ hg --debug incoming
   warning: cannot write to blackbox.log: Permission denied
   comparing with $TESTTMP/blackboxtest (glob)
   query 1; heads
   searching for changes
   all local heads known remotely
   changeset:   2:d02f48003e62c24e2659d97d30f2a83abe5d5d51
   tag:         tip
   phase:       draft
   parent:      1:6563da9dcf87b1949716e38ff3e3dfaa3198eb06
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    2:ab9d46b053ebf45b7996f2922b9893ff4b63d892
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files+:      c
   extra:       branch=default
   description:
   c
   
   
 #endif
   $ hg pull
   pulling from $TESTTMP/blackboxtest (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   (run 'hg update' to get a working copy)
 
 a failure reading from the log is fine
 #if unix-permissions no-root
   $ hg blackbox -l 3
   abort: Permission denied: $TESTTMP/blackboxtest2/.hg/blackbox.log
   [255]
 
   $ chmod 600 .hg/blackbox.log
 #endif
 
 backup bundles get logged
 
   $ touch d
   $ hg commit -Amd
   adding d
   created new head
   $ hg strip tip
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/*-backup.hg (glob)
   $ hg blackbox -l 5
   1970/01/01 00:00:00 bob (*)> strip tip (glob)
   1970/01/01 00:00:00 bob (*)> saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/*-backup.hg (glob)
   1970/01/01 00:00:00 bob (*)> updated base branch cache in ?.???? seconds (glob)
   1970/01/01 00:00:00 bob (*)> wrote base branch cache with 1 labels and 2 nodes (glob)
   1970/01/01 00:00:00 bob (*)> strip tip exited 0 after * seconds (glob)
 
 extension and python hooks - use the eol extension for a pythonhook
 
   $ echo '[extensions]' >> .hg/hgrc
   $ echo 'eol=' >> .hg/hgrc
   $ echo '[hooks]' >> .hg/hgrc
   $ echo 'update = echo hooked' >> .hg/hgrc
   $ hg update
+  hooked
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  hooked
   $ hg blackbox -l 5
   1970/01/01 00:00:00 bob (*)> update (glob)
   1970/01/01 00:00:00 bob (*)> writing .hg/cache/tags2-visible with 0 tags (glob)
   1970/01/01 00:00:00 bob (*)> pythonhook-preupdate: hgext.eol.preupdate finished in * seconds (glob)
   1970/01/01 00:00:00 bob (*)> exthook-update: echo hooked finished in * seconds (glob)
   1970/01/01 00:00:00 bob (*)> update exited 0 after * seconds (glob)
 
 log rotation
 
   $ echo '[blackbox]' >> .hg/hgrc
   $ echo 'maxsize = 20 b' >> .hg/hgrc
   $ echo 'maxfiles = 3' >> .hg/hgrc
   $ hg status
   $ hg status
   $ hg status
   $ hg tip -q
   2:d02f48003e62
   $ ls .hg/blackbox.log*
   .hg/blackbox.log
   .hg/blackbox.log.1
   .hg/blackbox.log.2
 
 cleanup
   $ cd ..

tests/test-hook.t

@@ -1,710 +1,710 b''
 commit hooks can see env vars
 (and post-transaction one are run unlocked)
 
   $ cat << EOF >> $HGRCPATH
   > [experimental]
   > # drop me once bundle2 is the default,
   > # added to get test change early.
   > bundle2-exp = True
   > EOF
 
   $ cat > $TESTTMP/txnabort.checkargs.py <<EOF
   > def showargs(ui, repo, hooktype, **kwargs):
   >     ui.write('%s python hook: %s\n' % (hooktype, ','.join(sorted(kwargs))))
   > EOF
 
   $ hg init a
   $ cd a
   $ cat > .hg/hgrc <<EOF
   > [hooks]
   > commit = sh -c "HG_LOCAL= HG_TAG= printenv.py commit"
   > commit.b = sh -c "HG_LOCAL= HG_TAG= printenv.py commit.b"
   > precommit = sh -c  "HG_LOCAL= HG_NODE= HG_TAG= printenv.py precommit"
   > pretxncommit = sh -c "HG_LOCAL= HG_TAG= printenv.py pretxncommit"
   > pretxncommit.tip = hg -q tip
   > pre-identify = printenv.py pre-identify 1
   > pre-cat = printenv.py pre-cat
   > post-cat = printenv.py post-cat
   > pretxnopen = sh -c "HG_LOCAL= HG_TAG= printenv.py pretxnopen"
   > pretxnclose = sh -c "HG_LOCAL= HG_TAG= printenv.py pretxnclose"
   > txnclose = sh -c "HG_LOCAL= HG_TAG= printenv.py txnclose"
   > txnabort.0 = python:$TESTTMP/txnabort.checkargs.py:showargs
   > txnabort.1 = sh -c "HG_LOCAL= HG_TAG= printenv.py txnabort"
   > txnclose.checklock = sh -c "hg debuglock > /dev/null"
   > EOF
   $ echo a > a
   $ hg add a
   $ hg commit -m a
   precommit hook: HG_PARENT1=0000000000000000000000000000000000000000
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000 HG_PENDING=$TESTTMP/a
   0:cb9a9f314b8b
   pretxnclose hook: HG_PENDING=$TESTTMP/a HG_PHASES_MOVED=1 HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   txnclose hook: HG_PHASES_MOVED=1 HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   commit hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000
   commit.b hook: HG_NODE=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PARENT1=0000000000000000000000000000000000000000
 
   $ hg clone . ../b
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../b
 
 changegroup hooks can see env vars
 
   $ cat > .hg/hgrc <<EOF
   > [hooks]
   > prechangegroup = printenv.py prechangegroup
   > changegroup = printenv.py changegroup
   > incoming = printenv.py incoming
   > EOF
 
 pretxncommit and commit hooks can see both parents of merge
 
   $ cd ../a
   $ echo b >> a
   $ hg commit -m a1 -d "1 0"
   precommit hook: HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PENDING=$TESTTMP/a
   1:ab228980c14d
   pretxnclose hook: HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   txnclose hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   commit hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   commit.b hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   $ hg update -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo b > b
   $ hg add b
   $ hg commit -m b -d '1 0'
   precommit hook: HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b HG_PENDING=$TESTTMP/a
   2:ee9deb46ab31
   pretxnclose hook: HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   txnclose hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   commit hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   commit.b hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT1=cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   created new head
   $ hg merge 1
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg commit -m merge -d '2 0'
   precommit hook: HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd HG_PENDING=$TESTTMP/a
   3:07f3376c1e65
   pretxnclose hook: HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   txnclose hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   commit hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd
   commit.b hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PARENT1=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_PARENT2=ab228980c14deea8b9555d91c9581127383e40fd
 
 test generic hooks
 
   $ hg id
   pre-identify hook: HG_ARGS=id HG_OPTS={'bookmarks': None, 'branch': None, 'id': None, 'insecure': None, 'num': None, 'remotecmd': '', 'rev': '', 'ssh': '', 'tags': None} HG_PATS=[]
   abort: pre-identify hook exited with status 1
   [255]
   $ hg cat b
   pre-cat hook: HG_ARGS=cat b HG_OPTS={'decode': None, 'exclude': [], 'include': [], 'output': '', 'rev': ''} HG_PATS=['b']
   b
   post-cat hook: HG_ARGS=cat b HG_OPTS={'decode': None, 'exclude': [], 'include': [], 'output': '', 'rev': ''} HG_PATS=['b'] HG_RESULT=0
 
   $ cd ../b
   $ hg pull ../a
   pulling from ../a
   searching for changes
   prechangegroup hook: HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   adding changesets
   adding manifests
   adding file changes
   added 3 changesets with 2 changes to 2 files
   changegroup hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   incoming hook: HG_NODE=ab228980c14deea8b9555d91c9581127383e40fd HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   incoming hook: HG_NODE=ee9deb46ab31e4cc3310f3cf0c3d668e4d8fffc2 HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   incoming hook: HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   (run 'hg update' to get a working copy)
 
 tag hooks can see env vars
 
   $ cd ../a
   $ cat >> .hg/hgrc <<EOF
   > pretag = printenv.py pretag
   > tag = sh -c "HG_PARENT1= HG_PARENT2= printenv.py tag"
   > EOF
   $ hg tag -d '3 0' a
   pretag hook: HG_LOCAL=0 HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_TAG=a
   precommit hook: HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2 HG_PENDING=$TESTTMP/a
   4:539e4b31b6dc
   pretxnclose hook: HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   tag hook: HG_LOCAL=0 HG_NODE=07f3376c1e655977439df2a814e3cc14b27abac2 HG_TAG=a
   txnclose hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   commit hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2
   commit.b hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PARENT1=07f3376c1e655977439df2a814e3cc14b27abac2
   $ hg tag -l la
   pretag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=la
   tag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=la
 
 pretag hook can forbid tagging
 
   $ echo "pretag.forbid = printenv.py pretag.forbid 1" >> .hg/hgrc
   $ hg tag -d '4 0' fa
   pretag hook: HG_LOCAL=0 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fa
   pretag.forbid hook: HG_LOCAL=0 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fa
   abort: pretag.forbid hook exited with status 1
   [255]
   $ hg tag -l fla
   pretag hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fla
   pretag.forbid hook: HG_LOCAL=1 HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_TAG=fla
   abort: pretag.forbid hook exited with status 1
   [255]
 
 pretxncommit hook can see changeset, can roll back txn, changeset no
 more there after
 
   $ echo "pretxncommit.forbid0 = hg tip -q" >> .hg/hgrc
   $ echo "pretxncommit.forbid1 = printenv.py pretxncommit.forbid 1" >> .hg/hgrc
   $ echo z > z
   $ hg add z
   $ hg -q tip
   4:539e4b31b6dc
   $ hg commit -m 'fail' -d '4 0'
   precommit hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   pretxncommit hook: HG_NODE=6f611f8018c10e827fee6bd2bc807f937e761567 HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/a
   5:6f611f8018c1
   5:6f611f8018c1
   pretxncommit.forbid hook: HG_NODE=6f611f8018c10e827fee6bd2bc807f937e761567 HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/a
   transaction abort!
   txnabort python hook: txnid,txnname
   txnabort hook: HG_TXNID=TXN:* HG_TXNNAME=commit (glob)
   rollback completed
   abort: pretxncommit.forbid1 hook exited with status 1
   [255]
   $ hg -q tip
   4:539e4b31b6dc
 
 (Check that no 'changelog.i.a' file were left behind)
 
   $ ls -1 .hg/store/
   00changelog.i
   00manifest.i
   data
   fncache
   journal.phaseroots
   phaseroots
   undo
   undo.backup.fncache
   undo.backupfiles
   undo.phaseroots
 
 
 precommit hook can prevent commit
 
   $ echo "precommit.forbid = printenv.py precommit.forbid 1" >> .hg/hgrc
   $ hg commit -m 'fail' -d '4 0'
   precommit hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10
   precommit.forbid hook: HG_PARENT1=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10
   abort: precommit.forbid hook exited with status 1
   [255]
   $ hg -q tip
   4:539e4b31b6dc
 
 preupdate hook can prevent update
 
   $ echo "preupdate = printenv.py preupdate" >> .hg/hgrc
   $ hg update 1
   preupdate hook: HG_PARENT1=ab228980c14d
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
 
 update hook
 
   $ echo "update = printenv.py update" >> .hg/hgrc
   $ hg update
   preupdate hook: HG_PARENT1=539e4b31b6dc
+  update hook: HG_ERROR=0 HG_PARENT1=539e4b31b6dc
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  update hook: HG_ERROR=0 HG_PARENT1=539e4b31b6dc
 
 pushkey hook
 
   $ echo "pushkey = printenv.py pushkey" >> .hg/hgrc
   $ cd ../b
   $ hg bookmark -r null foo
   $ hg push -B foo ../a
   pushing to ../a
   searching for changes
   no changes found
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=push (glob)
   pretxnclose hook: HG_BOOKMARK_MOVED=1 HG_BUNDLE2=1 HG_PENDING=$TESTTMP/a HG_SOURCE=push HG_TXNID=TXN:* HG_TXNNAME=push HG_URL=push (glob)
   pushkey hook: HG_KEY=foo HG_NAMESPACE=bookmarks HG_NEW=0000000000000000000000000000000000000000 HG_RET=1
   txnclose hook: HG_BOOKMARK_MOVED=1 HG_BUNDLE2=1 HG_SOURCE=push HG_TXNID=TXN:* HG_TXNNAME=push HG_URL=push (glob)
   exporting bookmark foo
   [1]
   $ cd ../a
 
 listkeys hook
 
   $ echo "listkeys = printenv.py listkeys" >> .hg/hgrc
   $ hg bookmark -r null bar
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   pretxnclose hook: HG_BOOKMARK_MOVED=1 HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   txnclose hook: HG_BOOKMARK_MOVED=1 HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   $ cd ../b
   $ hg pull -B bar ../a
   pulling from ../a
   listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'}
   no changes found
   listkeys hook: HG_NAMESPACE=phase HG_VALUES={}
   adding remote bookmark bar
   listkeys hook: HG_NAMESPACE=phases HG_VALUES={'cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b': '1', 'publishing': 'True'}
   $ cd ../a
 
 test that prepushkey can prevent incoming keys
 
   $ echo "prepushkey = printenv.py prepushkey.forbid 1" >> .hg/hgrc
   $ cd ../b
   $ hg bookmark -r null baz
   $ hg push -B baz ../a
   pushing to ../a
   searching for changes
   listkeys hook: HG_NAMESPACE=phases HG_VALUES={'cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b': '1', 'publishing': 'True'}
   listkeys hook: HG_NAMESPACE=bookmarks HG_VALUES={'bar': '0000000000000000000000000000000000000000', 'foo': '0000000000000000000000000000000000000000'}
   no changes found
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=push (glob)
   prepushkey.forbid hook: HG_BUNDLE2=1 HG_KEY=baz HG_NAMESPACE=bookmarks HG_NEW=0000000000000000000000000000000000000000 HG_SOURCE=push HG_TXNID=TXN:* HG_URL=push (glob)
   pushkey-abort: prepushkey hook exited with status 1
   abort: exporting bookmark baz failed!
   [255]
   $ cd ../a
 
 test that prelistkeys can prevent listing keys
 
   $ echo "prelistkeys = printenv.py prelistkeys.forbid 1" >> .hg/hgrc
   $ hg bookmark -r null quux
   pretxnopen hook: HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   pretxnclose hook: HG_BOOKMARK_MOVED=1 HG_PENDING=$TESTTMP/a HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   txnclose hook: HG_BOOKMARK_MOVED=1 HG_TXNID=TXN:* HG_TXNNAME=bookmark (glob)
   $ cd ../b
   $ hg pull -B quux ../a
   pulling from ../a
   prelistkeys.forbid hook: HG_NAMESPACE=bookmarks
   abort: prelistkeys hook exited with status 1
   [255]
   $ cd ../a
   $ rm .hg/hgrc
 
 prechangegroup hook can prevent incoming changes
 
   $ cd ../b
   $ hg -q tip
   3:07f3376c1e65
   $ cat > .hg/hgrc <<EOF
   > [hooks]
   > prechangegroup.forbid = printenv.py prechangegroup.forbid 1
   > EOF
   $ hg pull ../a
   pulling from ../a
   searching for changes
   prechangegroup.forbid hook: HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   abort: prechangegroup.forbid hook exited with status 1
   [255]
 
 pretxnchangegroup hook can see incoming changes, can roll back txn,
 incoming changes no longer there after
 
   $ cat > .hg/hgrc <<EOF
   > [hooks]
   > pretxnchangegroup.forbid0 = hg tip -q
   > pretxnchangegroup.forbid1 = printenv.py pretxnchangegroup.forbid 1
   > EOF
   $ hg pull ../a
   pulling from ../a
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   4:539e4b31b6dc
   pretxnchangegroup.forbid hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_PENDING=$TESTTMP/b HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=file:$TESTTMP/a (glob)
   transaction abort!
   rollback completed
   abort: pretxnchangegroup.forbid1 hook exited with status 1
   [255]
   $ hg -q tip
   3:07f3376c1e65
 
 outgoing hooks can see env vars
 
   $ rm .hg/hgrc
   $ cat > ../a/.hg/hgrc <<EOF
   > [hooks]
   > preoutgoing = printenv.py preoutgoing
   > outgoing = printenv.py outgoing
   > EOF
   $ hg pull ../a
   pulling from ../a
   searching for changes
   preoutgoing hook: HG_SOURCE=pull
   outgoing hook: HG_NODE=539e4b31b6dc99b3cfbaa6b53cbc1c1f9a1e3a10 HG_SOURCE=pull
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   adding remote bookmark quux
   (run 'hg update' to get a working copy)
   $ hg rollback
   repository tip rolled back to revision 3 (undo pull)
 
 preoutgoing hook can prevent outgoing changes
 
   $ echo "preoutgoing.forbid = printenv.py preoutgoing.forbid 1" >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   preoutgoing hook: HG_SOURCE=pull
   preoutgoing.forbid hook: HG_SOURCE=pull
   abort: preoutgoing.forbid hook exited with status 1
   [255]
 
 outgoing hooks work for local clones
 
   $ cd ..
   $ cat > a/.hg/hgrc <<EOF
   > [hooks]
   > preoutgoing = printenv.py preoutgoing
   > outgoing = printenv.py outgoing
   > EOF
   $ hg clone a c
   preoutgoing hook: HG_SOURCE=clone
   outgoing hook: HG_NODE=0000000000000000000000000000000000000000 HG_SOURCE=clone
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ rm -rf c
 
 preoutgoing hook can prevent outgoing changes for local clones
 
   $ echo "preoutgoing.forbid = printenv.py preoutgoing.forbid 1" >> a/.hg/hgrc
   $ hg clone a zzz
   preoutgoing hook: HG_SOURCE=clone
   preoutgoing.forbid hook: HG_SOURCE=clone
   abort: preoutgoing.forbid hook exited with status 1
   [255]
 
   $ cd "$TESTTMP/b"
 
   $ cat > hooktests.py <<EOF
   > from mercurial import error
   > 
   > uncallable = 0
   > 
   > def printargs(args):
   >     args.pop('ui', None)
   >     args.pop('repo', None)
   >     a = list(args.items())
   >     a.sort()
   >     print 'hook args:'
   >     for k, v in a:
   >        print ' ', k, v
   > 
   > def passhook(**args):
   >     printargs(args)
   > 
   > def failhook(**args):
   >     printargs(args)
   >     return True
   > 
   > class LocalException(Exception):
   >     pass
   > 
   > def raisehook(**args):
   >     raise LocalException('exception from hook')
   > 
   > def aborthook(**args):
   >     raise error.Abort('raise abort from hook')
   > 
   > def brokenhook(**args):
   >     return 1 + {}
   > 
   > def verbosehook(ui, **args):
   >     ui.note('verbose output from hook\n')
   > 
   > def printtags(ui, repo, **args):
   >     print sorted(repo.tags())
   > 
   > class container:
   >     unreachable = 1
   > EOF
 
 test python hooks
 
 #if windows
   $ PYTHONPATH="$TESTTMP/b;$PYTHONPATH"
 #else
   $ PYTHONPATH="$TESTTMP/b:$PYTHONPATH"
 #endif
   $ export PYTHONPATH
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.broken = python:hooktests.brokenhook' >> ../a/.hg/hgrc
   $ hg pull ../a 2>&1 | grep 'raised an exception'
   error: preoutgoing.broken hook raised an exception: unsupported operand type(s) for +: 'int' and 'dict'
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.raise = python:hooktests.raisehook' >> ../a/.hg/hgrc
   $ hg pull ../a 2>&1 | grep 'raised an exception'
   error: preoutgoing.raise hook raised an exception: exception from hook
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.abort = python:hooktests.aborthook' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   error: preoutgoing.abort hook failed: raise abort from hook
   abort: raise abort from hook
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.fail = python:hooktests.failhook' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   hook args:
     hooktype preoutgoing
     source pull
   abort: preoutgoing.fail hook failed
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.uncallable = python:hooktests.uncallable' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   abort: preoutgoing.uncallable hook is invalid ("hooktests.uncallable" is not callable)
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.nohook = python:hooktests.nohook' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   abort: preoutgoing.nohook hook is invalid ("hooktests.nohook" is not defined)
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.nomodule = python:nomodule' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   abort: preoutgoing.nomodule hook is invalid ("nomodule" not in a module)
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.badmodule = python:nomodule.nowhere' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   abort: preoutgoing.badmodule hook is invalid (import of "nomodule" failed)
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.unreachable = python:hooktests.container.unreachable' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   abort: preoutgoing.unreachable hook is invalid (import of "hooktests.container" failed)
   [255]
 
   $ echo '[hooks]' > ../a/.hg/hgrc
   $ echo 'preoutgoing.pass = python:hooktests.passhook' >> ../a/.hg/hgrc
   $ hg pull ../a
   pulling from ../a
   searching for changes
   hook args:
     hooktype preoutgoing
     source pull
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   adding remote bookmark quux
   (run 'hg update' to get a working copy)
 
 make sure --traceback works
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo 'commit.abort = python:hooktests.aborthook' >> .hg/hgrc
 
   $ echo aa > a
   $ hg --traceback commit -d '0 0' -ma 2>&1 | grep '^Traceback'
   Traceback (most recent call last):
 
   $ cd ..
   $ hg init c
   $ cd c
 
   $ cat > hookext.py <<EOF
   > def autohook(**args):
   >     print "Automatically installed hook"
   > 
   > def reposetup(ui, repo):
   >     repo.ui.setconfig("hooks", "commit.auto", autohook)
   > EOF
   $ echo '[extensions]' >> .hg/hgrc
   $ echo 'hookext = hookext.py' >> .hg/hgrc
 
   $ touch foo
   $ hg add foo
   $ hg ci -d '0 0' -m 'add foo'
   Automatically installed hook
   $ echo >> foo
   $ hg ci --debug -d '0 0' -m 'change foo'
   committing files:
   foo
   committing manifest
   committing changelog
   calling hook commit.auto: hgext_hookext.autohook
   Automatically installed hook
   committed changeset 1:52998019f6252a2b893452765fcb0a47351a5708
 
   $ hg showconfig hooks
   hooks.commit.auto=<function autohook at *> (glob)
 
 test python hook configured with python:[file]:[hook] syntax
 
   $ cd ..
   $ mkdir d
   $ cd d
   $ hg init repo
   $ mkdir hooks
 
   $ cd hooks
   $ cat > testhooks.py <<EOF
   > def testhook(**args):
   >     print 'hook works'
   > EOF
   $ echo '[hooks]' > ../repo/.hg/hgrc
   $ echo "pre-commit.test = python:`pwd`/testhooks.py:testhook" >> ../repo/.hg/hgrc
 
   $ cd ../repo
   $ hg commit -d '0 0'
   hook works
   nothing changed
   [1]
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo "update.ne = python:`pwd`/nonexistent.py:testhook" >> .hg/hgrc
   $ echo "pre-identify.npmd = python:`pwd`/:no_python_module_dir" >> .hg/hgrc
 
   $ hg up null
   loading update.ne hook failed:
   abort: No such file or directory: $TESTTMP/d/repo/nonexistent.py
   [255]
 
   $ hg id
   loading pre-identify.npmd hook failed:
   abort: No module named repo!
   [255]
 
   $ cd ../../b
 
 make sure --traceback works on hook import failure
 
   $ cat > importfail.py <<EOF
   > import somebogusmodule
   > # dereference something in the module to force demandimport to load it
   > somebogusmodule.whatever
   > EOF
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo 'precommit.importfail = python:importfail.whatever' >> .hg/hgrc
 
   $ echo a >> a
   $ hg --traceback commit -ma 2>&1 | egrep -v '^( +File|    [a-zA-Z(])'
   exception from first failed import attempt:
   Traceback (most recent call last):
   ImportError: No module named somebogusmodule
   exception from second failed import attempt:
   Traceback (most recent call last):
   ImportError: No module named hgext_importfail
   Traceback (most recent call last):
   HookLoadError: precommit.importfail hook is invalid (import of "importfail" failed)
   abort: precommit.importfail hook is invalid (import of "importfail" failed)
 
 Issue1827: Hooks Update & Commit not completely post operation
 
 commit and update hooks should run after command completion.  The largefiles
 use demonstrates a recursive wlock, showing the hook doesn't run until the
 final release (and dirstate flush).
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo 'commit = hg id' >> .hg/hgrc
   $ echo 'update = hg id' >> .hg/hgrc
   $ echo bb > a
   $ hg ci -ma
   223eafe2750c tip
   $ hg up 0 --config extensions.largefiles=
+  cb9a9f314b8b
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  cb9a9f314b8b
 
 make sure --verbose (and --quiet/--debug etc.) are propagated to the local ui
 that is passed to pre/post hooks
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo 'pre-identify = python:hooktests.verbosehook' >> .hg/hgrc
   $ hg id
   cb9a9f314b8b
   $ hg id --verbose
   calling hook pre-identify: hooktests.verbosehook
   verbose output from hook
   cb9a9f314b8b
 
 Ensure hooks can be prioritized
 
   $ echo '[hooks]' > .hg/hgrc
   $ echo 'pre-identify.a = python:hooktests.verbosehook' >> .hg/hgrc
   $ echo 'pre-identify.b = python:hooktests.verbosehook' >> .hg/hgrc
   $ echo 'priority.pre-identify.b = 1' >> .hg/hgrc
   $ echo 'pre-identify.c = python:hooktests.verbosehook' >> .hg/hgrc
   $ hg id --verbose
   calling hook pre-identify.b: hooktests.verbosehook
   verbose output from hook
   calling hook pre-identify.a: hooktests.verbosehook
   verbose output from hook
   calling hook pre-identify.c: hooktests.verbosehook
   verbose output from hook
   cb9a9f314b8b
 
 new tags must be visible in pretxncommit (issue3210)
 
   $ echo 'pretxncommit.printtags = python:hooktests.printtags' >> .hg/hgrc
   $ hg tag -f foo
   ['a', 'foo', 'tip']
 
 new commits must be visible in pretxnchangegroup (issue3428)
 
   $ cd ..
   $ hg init to
   $ echo '[hooks]' >> to/.hg/hgrc
   $ echo 'pretxnchangegroup = hg --traceback tip' >> to/.hg/hgrc
   $ echo a >> to/a
   $ hg --cwd to ci -Ama
   adding a
   $ hg clone to from
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo aa >> from/a
   $ hg --cwd from ci -mb
   $ hg --cwd from push
   pushing to $TESTTMP/to (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   changeset:   1:9836a07b9b9d
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     b
   

tests/test-shelve.t

@@ -1,1130 +1,1176 b''
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > mq =
   > shelve =
   > [defaults]
   > diff = --nodates --git
   > qnew = --date '0 0'
   > [shelve]
   > maxbackups = 2
   > EOF
 
   $ hg init repo
   $ cd repo
   $ mkdir a b
   $ echo a > a/a
   $ echo b > b/b
   $ echo c > c
   $ echo d > d
   $ echo x > x
   $ hg addremove -q
 
 shelve has a help message
   $ hg shelve -h
   hg shelve [OPTION]... [FILE]...
   
   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".
   
   (use "hg help -e shelve" to show help for the shelve extension)
   
   options ([+] can be repeated):
   
    -A --addremove           mark new/missing files as added/removed before
                             shelving
       --cleanup             delete all shelved changes
       --date DATE           shelve with the specified commit date
    -d --delete              delete the named shelved change(s)
    -e --edit                invoke editor on commit messages
    -l --list                list current shelves
    -m --message TEXT        use text as shelve message
    -n --name NAME           use the given name for the shelved commit
    -p --patch               show patch
    -i --interactive         interactive mode, only works while creating a shelve
       --stat                output diffstat-style summary of changes
    -I --include PATTERN [+] include names matching the given patterns
    -X --exclude PATTERN [+] exclude names matching the given patterns
       --mq                  operate on patch repository
   
   (some details hidden, use --verbose to show complete help)
 
 shelving in an empty repo should be possible
 (this tests also that editor is not invoked, if '--edit' is not
 specified)
 
   $ HGEDITOR=cat hg shelve
   shelved as default
   0 files updated, 0 files merged, 5 files removed, 0 files unresolved
 
   $ hg unshelve
   unshelving change 'default'
 
   $ hg commit -q -m 'initial commit'
 
   $ hg shelve
   nothing changed
   [1]
 
 make sure shelve files were backed up
 
   $ ls .hg/shelve-backup
   default.hg
   default.patch
 
 create an mq patch - shelving should work fine with a patch applied
 
   $ echo n > n
   $ hg add n
   $ hg commit n -m second
   $ hg qnew second.patch
 
 shelve a change that we will delete later
 
   $ echo a >> a/a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 set up some more complex changes to shelve
 
   $ echo a >> a/a
   $ hg mv b b.rename
   moving b/b to b.rename/b (glob)
   $ hg cp c c.copy
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
 
 prevent some foot-shooting
 
   $ hg shelve -n foo/bar
   abort: shelved change names may not contain slashes
   [255]
   $ hg shelve -n .baz
   abort: shelved change names may not start with '.'
   [255]
 
 the common case - no options or filenames
 
   $ hg shelve
   shelved as default-01
   2 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg status -C
 
 ensure that our shelved changes exist
 
   $ hg shelve -l
   default-01      (*)* changes to '[mq]: second.patch' (glob)
   default         (*)* changes to '[mq]: second.patch' (glob)
 
   $ hg shelve -l -p default
   default         (*)* changes to '[mq]: second.patch' (glob)
   
   diff --git a/a/a b/a/a
   --- a/a/a
   +++ b/a/a
   @@ -1,1 +1,2 @@
    a
   +a
 
   $ hg shelve --list --addremove
   abort: options '--list' and '--addremove' may not be used together
   [255]
 
 delete our older shelved change
 
   $ hg shelve -d default
   $ hg qfinish -a -q
 
 ensure shelve backups aren't overwritten
 
   $ ls .hg/shelve-backup/
   default-1.hg
   default-1.patch
   default.hg
   default.patch
 
 local edits should not prevent a shelved change from applying
 
   $ printf "z\na\n" > a/a
   $ hg unshelve --keep
   unshelving change 'default-01'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 4:4702e8911fe0 "changes to '[mq]: second.patch'" (tip)
   merging a/a
 
   $ hg revert --all -q
   $ rm a/a.orig b.rename/b c.copy
 
 apply it and make sure our state is as expected
 
 (this also tests that same timestamp prevents backups from being
 removed, even though there are more than 'maxbackups' backups)
 
   $ f -t .hg/shelve-backup/default.hg
   .hg/shelve-backup/default.hg: file
   $ touch -t 200001010000 .hg/shelve-backup/default.hg
   $ f -t .hg/shelve-backup/default-1.hg
   .hg/shelve-backup/default-1.hg: file
   $ touch -t 200001010000 .hg/shelve-backup/default-1.hg
 
   $ hg unshelve
   unshelving change 'default-01'
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ hg shelve -l
 
 (both of default.hg and default-1.hg should be still kept, because it
 is difficult to decide actual order of them from same timestamp)
 
   $ ls .hg/shelve-backup/
   default-01.hg
   default-01.patch
   default-1.hg
   default-1.patch
   default.hg
   default.patch
 
   $ hg unshelve
   abort: no shelved changes to apply!
   [255]
   $ hg unshelve foo
   abort: shelved change 'foo' not found
   [255]
 
 named shelves, specific filenames, and "commit messages" should all work
 (this tests also that editor is invoked, if '--edit' is specified)
 
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ HGEDITOR=cat hg shelve -q -n wibble -m wat -e a
   wat
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: shelve@localhost
   HG: branch 'default'
   HG: changed a/a
 
 expect "a" to no longer be present, but status otherwise unchanged
 
   $ hg status -C
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ hg shelve -l --stat
   wibble          (*)    wat (glob)
    a/a |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
 
 and now "a/a" should reappear
 
   $ cd a
   $ hg unshelve -q wibble
   $ cd ..
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
 
 ensure old shelve backups are being deleted automatically
 
   $ ls .hg/shelve-backup/
   default-01.hg
   default-01.patch
   wibble.hg
   wibble.patch
 
 cause unshelving to result in a merge with 'a' conflicting
 
   $ hg shelve -q
   $ echo c>>a/a
   $ hg commit -m second
   $ hg tip --template '{files}\n'
   a/a
 
 add an unrelated change that should be preserved
 
   $ mkdir foo
   $ echo foo > foo/foo
   $ hg add foo/foo
 
 force a conflicted merge to occur
 
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:4702e8911fe0 "changes to '[mq]: second.patch'" (tip)
   merging a/a
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 
 ensure that we have a merge with unresolved conflicts
 
   $ hg heads -q --template '{rev}\n'
   5
   4
   $ hg parents -q --template '{rev}\n'
   4
   5
   $ hg status
   M a/a
   M b.rename/b
   M c.copy
   R b/b
   ? a/a.orig
   $ hg diff
   diff --git a/a/a b/a/a
   --- a/a/a
   +++ b/a/a
   @@ -1,2 +1,6 @@
    a
   +<<<<<<< dest:   *  - shelve: pending changes temporary commit (glob)
    c
   +=======
   +a
   +>>>>>>> source: 4702e8911fe0 - shelve: changes to '[mq]: second.patch'
   diff --git a/b/b b/b.rename/b
   rename from b/b
   rename to b.rename/b
   diff --git a/c b/c.copy
   copy from c
   copy to c.copy
   $ hg resolve -l
   U a/a
 
   $ hg shelve
   abort: unshelve already in progress
   (use 'hg unshelve --continue' or 'hg unshelve --abort')
   [255]
 
 abort the unshelve and be happy
 
   $ hg status
   M a/a
   M b.rename/b
   M c.copy
   R b/b
   ? a/a.orig
   $ hg unshelve -a
   rebase aborted
   unshelve of 'default' aborted
   $ hg heads -q
   3:2e69b451d1ea
   $ hg parents
   changeset:   3:2e69b451d1ea
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     second
   
   $ hg resolve -l
   $ hg status
   A foo/foo
   ? a/a.orig
 
 try to continue with no unshelve underway
 
   $ hg unshelve -c
   abort: no unshelve operation underway
   [255]
   $ hg status
   A foo/foo
   ? a/a.orig
 
 redo the unshelve to get a conflict
 
   $ hg unshelve -q
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 
 attempt to continue
 
   $ hg unshelve -c
   abort: unresolved conflicts, can't continue
   (see 'hg resolve', then 'hg unshelve --continue')
   [255]
 
   $ hg revert -r . a/a
   $ hg resolve -m a/a
   (no more unresolved files)
 
   $ hg commit -m 'commit while unshelve in progress'
   abort: unshelve already in progress
   (use 'hg unshelve --continue' or 'hg unshelve --abort')
   [255]
 
   $ hg unshelve -c
   rebasing 5:4702e8911fe0 "changes to '[mq]: second.patch'" (tip)
   unshelve of 'default' complete
 
 ensure the repo is as we hope
 
   $ hg parents
   changeset:   3:2e69b451d1ea
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     second
   
   $ hg heads -q
   3:2e69b451d1ea
 
   $ hg status -C
   A b.rename/b
     b/b
   A c.copy
     c
   A foo/foo
   R b/b
   ? a/a.orig
 
 there should be no shelves left
 
   $ hg shelve -l
 
 #if execbit
 
 ensure that metadata-only changes are shelved
 
   $ chmod +x a/a
   $ hg shelve -q -n execbit a/a
   $ hg status a/a
   $ hg unshelve -q execbit
   $ hg status a/a
   M a/a
   $ hg revert a/a
 
 #endif
 
 #if symlink
 
   $ rm a/a
   $ ln -s foo a/a
   $ hg shelve -q -n symlink a/a
   $ hg status a/a
   $ hg unshelve -q symlink
   $ hg status a/a
   M a/a
   $ hg revert a/a
 
 #endif
 
 set up another conflict between a commit and a shelved change
 
   $ hg revert -q -C -a
   $ rm a/a.orig b.rename/b c.copy
   $ echo a >> a/a
   $ hg shelve -q
   $ echo x >> a/a
   $ hg ci -m 'create conflict'
   $ hg add foo/foo
 
 if we resolve a conflict while unshelving, the unshelve should succeed
 
   $ HGMERGE=true hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 6:c5e6910e7601 "changes to 'second'" (tip)
   merging a/a
   note: rebase of 6:c5e6910e7601 created no changes to commit
   $ hg parents -q
   4:33f7f61e6c5e
   $ hg shelve -l
   $ hg status
   A foo/foo
   $ cat a/a
   a
   c
   x
 
 test keep and cleanup
 
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg shelve --list
   default         (*)    changes to 'create conflict' (glob)
   $ hg unshelve --keep
   unshelving change 'default'
   $ hg shelve --list
   default         (*)    changes to 'create conflict' (glob)
   $ hg shelve --cleanup
   $ hg shelve --list
 
   $ hg shelve --cleanup --delete
   abort: options '--cleanup' and '--delete' may not be used together
   [255]
   $ hg shelve --cleanup --patch
   abort: options '--cleanup' and '--patch' may not be used together
   [255]
   $ hg shelve --cleanup --message MESSAGE
   abort: options '--cleanup' and '--message' may not be used together
   [255]
 
 test bookmarks
 
   $ hg bookmark test
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg shelve
   shelved as test
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'test'
   $ hg bookmark
    * test                      4:33f7f61e6c5e
 
 shelve should still work even if mq is disabled
 
   $ hg --config extensions.mq=! shelve
   shelved as test
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg --config extensions.mq=! shelve --list
   test            (*)    changes to 'create conflict' (glob)
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg --config extensions.mq=! unshelve
   unshelving change 'test'
   $ hg bookmark
    * test                      4:33f7f61e6c5e
 
 shelve should leave dirstate clean (issue4055)
 
   $ cd ..
   $ hg init shelverebase
   $ cd shelverebase
   $ printf 'x\ny\n' > x
   $ echo z > z
   $ hg commit -Aqm xy
   $ echo z >> x
   $ hg commit -Aqm z
   $ hg up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ printf 'a\nx\ny\nz\n' > x
   $ hg commit -Aqm xyz
   $ echo c >> z
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg rebase -d 1 --config extensions.rebase=
   rebasing 2:323bfa07f744 "xyz" (tip)
   merging x
   saved backup bundle to $TESTTMP/shelverebase/.hg/strip-backup/323bfa07f744-78114325-backup.hg (glob)
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 4:b8fefe789ed0 "changes to 'xyz'" (tip)
   $ hg status
   M z
 
   $ cd ..
 
 shelve should only unshelve pending changes (issue4068)
 
   $ hg init onlypendingchanges
   $ cd onlypendingchanges
   $ touch a
   $ hg ci -Aqm a
   $ touch b
   $ hg ci -Aqm b
   $ hg up -q 0
   $ touch c
   $ hg ci -Aqm c
 
   $ touch d
   $ hg add d
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg up -q 1
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 3:0cae6656c016 "changes to 'c'" (tip)
   $ hg status
   A d
 
 unshelve should work on an ancestor of the original commit
 
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 3:be58f65f55fb "changes to 'b'" (tip)
   $ hg status
   A d
 
 test bug 4073 we need to enable obsolete markers for it
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
   > evolution=createmarkers
   > EOF
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugobsolete `hg --debug id -i -r 1`
   $ hg unshelve
   unshelving change 'default'
 
 unshelve should leave unknown files alone (issue4113)
 
   $ echo e > e
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg status
   ? e
   $ hg unshelve
   unshelving change 'default'
   $ hg status
   A d
   ? e
   $ cat e
   e
 
 unshelve should keep a copy of unknown files
 
   $ hg add e
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo z > e
   $ hg unshelve
   unshelving change 'default'
   $ cat e
   e
   $ cat e.orig
   z
 
 
 unshelve and conflicts with tracked and untracked files
 
  preparing:
 
   $ rm *.orig
   $ hg ci -qm 'commit stuff'
   $ hg phase -p null:
 
  no other changes - no merge:
 
   $ echo f > f
   $ hg add f
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo g > f
   $ hg unshelve
   unshelving change 'default'
   $ hg st
   A f
   ? f.orig
   $ cat f
   f
   $ cat f.orig
   g
 
  other uncommitted changes - merge:
 
   $ hg st
   A f
   ? f.orig
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg log -G --template '{rev}  {desc|firstline}  {author}' -R bundle://.hg/shelved/default.hg -r 'bundle()'
   o  4  changes to 'commit stuff'  shelve@localhost
   |
   $ hg log -G --template '{rev}  {desc|firstline}  {author}'
   @  3  commit stuff  test
   |
   | o  2  c  test
   |/
   o  0  a  test
   
   $ mv f.orig f
   $ echo 1 > a
   $ hg unshelve --date '1073741824 0'
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:23b29cada8ba "changes to 'commit stuff'" (tip)
   merging f
   warning: conflicts while merging f! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg log -G --template '{rev}  {desc|firstline}  {author}  {date|isodate}'
   @  5  changes to 'commit stuff'  shelve@localhost  1970-01-01 00:00 +0000
   |
   | @  4  pending changes temporary commit  shelve@localhost  2004-01-10 13:37 +0000
   |/
   o  3  commit stuff  test  1970-01-01 00:00 +0000
   |
   | o  2  c  test  1970-01-01 00:00 +0000
   |/
   o  0  a  test  1970-01-01 00:00 +0000
   
   $ hg st
   M f
   ? f.orig
   $ cat f
   <<<<<<< dest:   5f6b880e719b  - shelve: pending changes temporary commit
   g
   =======
   f
   >>>>>>> source: 23b29cada8ba - shelve: changes to 'commit stuff'
   $ cat f.orig
   g
   $ hg unshelve --abort
   rebase aborted
   unshelve of 'default' aborted
   $ hg st
   M a
   ? f.orig
   $ cat f.orig
   g
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:23b29cada8ba "changes to 'commit stuff'" (tip)
   $ hg st
   M a
   A f
   ? f.orig
 
  other committed changes - merge:
 
   $ hg shelve f
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg ci a -m 'intermediate other change'
   $ mv f.orig f
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 5:23b29cada8ba "changes to 'commit stuff'" (tip)
   merging f
   warning: conflicts while merging f! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg st
   M f
   ? f.orig
   $ cat f
   <<<<<<< dest:   *  - test: intermediate other change (glob)
   g
   =======
   f
   >>>>>>> source: 23b29cada8ba - shelve: changes to 'commit stuff'
   $ cat f.orig
   g
   $ hg unshelve --abort
   rebase aborted
   unshelve of 'default' aborted
   $ hg st
   ? f.orig
   $ cat f.orig
   g
   $ hg shelve --delete default
 
 Recreate some conflict again
 
   $ cd ../repo
   $ hg up -C -r 3
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (leaving bookmark test)
   $ echo y >> a/a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg up test
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (activating bookmark test)
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 5:4b555fdb4e96 "changes to 'second'" (tip)
   merging a/a
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg bookmark
      test                      4:33f7f61e6c5e
 
 Test that resolving all conflicts in one direction (so that the rebase
 is a no-op), works (issue4398)
 
   $ hg revert -a -r .
   reverting a/a (glob)
   $ hg resolve -m a/a
   (no more unresolved files)
   $ hg unshelve -c
   rebasing 5:4b555fdb4e96 "changes to 'second'" (tip)
   note: rebase of 5:4b555fdb4e96 created no changes to commit
   unshelve of 'default' complete
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg diff
   $ hg status
   ? a/a.orig
   ? foo/foo
   $ hg summary
   parent: 4:33f7f61e6c5e tip
    create conflict
   branch: default
   bookmarks: *test
   commit: 2 unknown (clean)
   update: (current)
   phases: 5 draft
 
   $ hg shelve --delete --stat
   abort: options '--delete' and '--stat' may not be used together
   [255]
   $ hg shelve --delete --name NAME
   abort: options '--delete' and '--name' may not be used together
   [255]
 
 Test interactive shelve
   $ cat <<EOF >> $HGRCPATH
   > [ui]
   > interactive = true
   > EOF
   $ echo 'a' >> a/b
   $ cat a/a >> a/b
   $ echo 'x' >> a/b
   $ mv a/b a/a
   $ echo 'a' >> foo/foo
   $ hg st
   M a/a
   ? a/a.orig
   ? foo/foo
   $ cat a/a
   a
   a
   c
   x
   x
   $ cat foo/foo
   foo
   a
   $ hg shelve --interactive --config ui.interactive=false
   abort: running non-interactively
   [255]
   $ hg shelve --interactive << EOF
   > y
   > y
   > n
   > EOF
   diff --git a/a/a b/a/a
   2 hunks, 2 lines changed
   examine changes to 'a/a'? [Ynesfdaq?] y
   
   @@ -1,3 +1,4 @@
   +a
    a
    c
    x
   record change 1/2 to 'a/a'? [Ynesfdaq?] y
   
   @@ -1,3 +2,4 @@
    a
    c
    x
   +x
   record change 2/2 to 'a/a'? [Ynesfdaq?] n
   
   shelved as test
   merging a/a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   $ cat a/a
   a
   c
   x
   x
   $ cat foo/foo
   foo
   a
   $ hg st
   M a/a
   ? foo/foo
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'test'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 6:65b5d1c34c34 "changes to 'create conflict'" (tip)
   merging a/a
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ cat a/a
   a
   a
   c
   x
   x
 
 shelve --patch and shelve --stat should work with a single valid shelfname
 
   $ hg up --clean .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (leaving bookmark test)
   $ hg shelve --list
   $ echo 'patch a' > shelf-patch-a
   $ hg add shelf-patch-a
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo 'patch b' > shelf-patch-b
   $ hg add shelf-patch-b
   $ hg shelve
   shelved as default-01
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg shelve --patch default default-01
   abort: --patch expects a single shelf
   [255]
   $ hg shelve --stat default default-01
   abort: --stat expects a single shelf
   [255]
   $ hg shelve --patch default
   default         (* ago)    changes to 'create conflict' (glob)
   
   diff --git a/shelf-patch-a b/shelf-patch-a
   new file mode 100644
   --- /dev/null
   +++ b/shelf-patch-a
   @@ -0,0 +1,1 @@
   +patch a
   $ hg shelve --stat default
   default         (* ago)    changes to 'create conflict' (glob)
    shelf-patch-a |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ hg shelve --patch nonexistentshelf
   abort: cannot find shelf nonexistentshelf
   [255]
   $ hg shelve --stat nonexistentshelf
   abort: cannot find shelf nonexistentshelf
   [255]
 
   $ cd ..
 
 Shelve from general delta repo uses bundle2 on disk
 --------------------------------------------------
 
 no general delta
 
   $ hg clone --pull repo bundle1 --config format.generaldelta=0
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 8 changes to 6 files
   updating to branch default
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd bundle1
   $ echo babar > jungle
   $ hg add jungle
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugbundle .hg/shelved/*.hg
   7e30d8ac6f23cfc84330fd7e698730374615d21a
   $ cd ..
 
 with general delta
 
   $ hg clone --pull repo bundle2 --config format.generaldelta=1
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 8 changes to 6 files
   updating to branch default
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd bundle2
   $ echo babar > jungle
   $ hg add jungle
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugbundle .hg/shelved/*.hg
   Stream params: {'Compression': 'BZ'}
   changegroup -- "{'version': '02'}"
       7e30d8ac6f23cfc84330fd7e698730374615d21a
   $ cd ..
 
 Test visibility of in-memory changes inside transaction to external hook
 ------------------------------------------------------------------------
 
   $ cd repo
 
   $ echo xxxx >> x
   $ hg commit -m "#5: changes to invoke rebase"
 
   $ cat > $TESTTMP/checkvisibility.sh <<EOF
   > echo "==== \$1:"
   > hg parents --template "VISIBLE {rev}:{node|short}\n"
   > # test that pending changes are hidden
   > unset HG_PENDING
   > hg parents --template "ACTUAL  {rev}:{node|short}\n"
   > echo "===="
   > EOF
 
   $ cat >> .hg/hgrc <<EOF
   > [defaults]
   > # to fix hash id of temporary revisions
   > unshelve = --date '0 0'
   > EOF
 
 "hg unshelve" at REV5 implies steps below:
 
 (1) commit changes in the working directory (REV6)
 (2) unbundle shelved revision (REV7)
 (3) rebase: merge REV7 into REV6 (REV6 => REV6, REV7)
 (4) rebase: commit merged revision (REV8)
 (5) rebase: update to REV6 (REV8 => REV6)
 (6) update to REV5 (REV6 => REV5)
 (7) abort transaction
 
 == test visibility to external preupdate hook
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
   > EOF
 
   $ echo nnnn >> n
 
   $ sh $TESTTMP/checkvisibility.sh before-unshelving
   ==== before-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
   $ hg unshelve --keep default
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 7:fcbb97608399 "changes to 'create conflict'" (tip)
   ==== preupdate:
   VISIBLE 6:66b86db80ee4
   ACTUAL  5:703117a2acfb
   ====
   ==== preupdate:
   VISIBLE 8:cb2a4e59c2d5
   ACTUAL  5:703117a2acfb
   ====
   ==== preupdate:
   VISIBLE 6:66b86db80ee4
   ACTUAL  5:703117a2acfb
   ====
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility =
   > EOF
 
   $ sh $TESTTMP/checkvisibility.sh after-unshelving
   ==== after-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
+== test visibility to external update hook
+
+  $ hg update -q -C 5
+
+  $ cat >> .hg/hgrc <<EOF
+  > [hooks]
+  > update.visibility = sh $TESTTMP/checkvisibility.sh update
+  > EOF
+
+  $ echo nnnn >> n
+
+  $ sh $TESTTMP/checkvisibility.sh before-unshelving
+  ==== before-unshelving:
+  VISIBLE 5:703117a2acfb
+  ACTUAL  5:703117a2acfb
+  ====
+
+  $ hg unshelve --keep default
+  temporarily committing pending changes (restore with 'hg unshelve --abort')
+  rebasing shelved changes
+  rebasing 7:fcbb97608399 "changes to 'create conflict'" (tip)
+  ==== update:
+  VISIBLE 6:66b86db80ee4
+  VISIBLE 7:fcbb97608399
+  ACTUAL  5:703117a2acfb
+  ====
+  ==== update:
+  VISIBLE 6:66b86db80ee4
+  ACTUAL  5:703117a2acfb
+  ====
+  ==== update:
+  VISIBLE 5:703117a2acfb
+  ACTUAL  5:703117a2acfb
+  ====
+
+  $ cat >> .hg/hgrc <<EOF
+  > [hooks]
+  > update.visibility =
+  > EOF
+
+  $ sh $TESTTMP/checkvisibility.sh after-unshelving
+  ==== after-unshelving:
+  VISIBLE 5:703117a2acfb
+  ACTUAL  5:703117a2acfb
+  ====
+
   $ cd ..
 
 test Abort unshelve always gets user out of the unshelved state
 ---------------------------------------------------------------
   $ hg init salvage
   $ cd salvage
   $ echo 'content' > root
   $ hg commit -A -m 'root' -q
   $ echo '' > root
   $ hg shelve -q
   $ echo 'contADDent' > root
   $ hg unshelve -q
   warning: conflicts while merging root! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 Wreak havoc on the unshelve process
   $ rm .hg/unshelverebasestate
   $ hg unshelve --abort
   unshelve of 'default' aborted
   abort: No such file or directory
   [255]
 Can the user leave the current state?
   $ hg up -C .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Try again but with a corrupted shelve state file
   $ hg strip -r 2 -r 1 -q
   $ hg up -r 0 -q
   $ echo '' > root
   $ hg shelve -q
   $ echo 'contADDent' > root
   $ hg unshelve -q
   warning: conflicts while merging root! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ sed 's/ae8c668541e8/123456789012/' .hg/shelvedstate > ../corrupt-shelvedstate
   $ mv ../corrupt-shelvedstate .hg/histedit-state
   $ hg unshelve --abort |& grep 'rebase aborted'
   rebase aborted
   $ hg up -C .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved