memctx: calculate exact status being committed from specified files

Before this patch, "memctx._status" is initialized by "(files, [], [],
[], [], [], [])" and this causes "memctx.modified" to include not
only modified files but also added and removed ones incorrectly.

This patch adds "_status" method to calculate exact status being
committed according to "files" specified at construction time.

Exact "_status" is useful to share/reuse logic of committablectx.

This patch is also preparation for issues fixed by subsequent patches.

Some details of changes for tests in this patch:

  - some filename lines are omitted in "test-convert-svn-encoding.t",
    because they are correctly listed up as "removed" files

    those lines are written out in "localrepository.commitctx" for
    "modified" and "added" files by "ui.note".

  - "| fixbundle" filterring in "test-histedit-fold.t" is omitted to
    check lines including "added" correctly

    "fixbundle" discards all lines including "added".

mercurial/context.py

@@ -1,1686 +1,1714
 # context.py - changeset and file context objects for mercurial
 #
 # Copyright 2006, 2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from node import nullid, nullrev, short, hex, bin
 from i18n import _
 import mdiff, error, util, scmutil, subrepo, patch, encoding, phases
 import match as matchmod
 import os, errno, stat
 import obsolete as obsmod
 import repoview
 import fileset
 import revlog
 
 propertycache = util.propertycache
 
 class basectx(object):
     """A basectx object represents the common logic for its children:
     changectx: read-only context that is already present in the repo,
     workingctx: a context that represents the working directory and can
                 be committed,
     memctx: a context that represents changes in-memory and can also
             be committed."""
     def __new__(cls, repo, changeid='', *args, **kwargs):
         if isinstance(changeid, basectx):
             return changeid
 
         o = super(basectx, cls).__new__(cls)
 
         o._repo = repo
         o._rev = nullrev
         o._node = nullid
 
         return o
 
     def __str__(self):
         return short(self.node())
 
     def __int__(self):
         return self.rev()
 
     def __repr__(self):
         return "<%s %s>" % (type(self).__name__, str(self))
 
     def __eq__(self, other):
         try:
             return type(self) == type(other) and self._rev == other._rev
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def __contains__(self, key):
         return key in self._manifest
 
     def __getitem__(self, key):
         return self.filectx(key)
 
     def __iter__(self):
         for f in sorted(self._manifest):
             yield f
 
     def _manifestmatches(self, match, s):
         """generate a new manifest filtered by the match argument
 
         This method is for internal use only and mainly exists to provide an
         object oriented way for other contexts to customize the manifest
         generation.
         """
         return self.manifest().matches(match)
 
     def _matchstatus(self, other, match):
         """return match.always if match is none
 
         This internal method provides a way for child objects to override the
         match operator.
         """
         return match or matchmod.always(self._repo.root, self._repo.getcwd())
 
     def _buildstatus(self, other, s, match, listignored, listclean,
                      listunknown):
         """build a status with respect to another context"""
         # Load earliest manifest first for caching reasons. More specifically,
         # if you have revisions 1000 and 1001, 1001 is probably stored as a
         # delta against 1000. Thus, if you read 1000 first, we'll reconstruct
         # 1000 and cache it so that when you read 1001, we just need to apply a
         # delta to what's in the cache. So that's one full reconstruction + one
         # delta application.
         if self.rev() is not None and self.rev() < other.rev():
             self.manifest()
         mf1 = other._manifestmatches(match, s)
         mf2 = self._manifestmatches(match, s)
 
         modified, added, clean = [], [], []
         deleted, unknown, ignored = s.deleted, s.unknown, s.ignored
         deletedset = set(deleted)
         withflags = mf1.withflags() | mf2.withflags()
         for fn, mf2node in mf2.iteritems():
             if fn in mf1:
                 if (fn not in deletedset and
                     ((fn in withflags and mf1.flags(fn) != mf2.flags(fn)) or
                      (mf1[fn] != mf2node and
                       (mf2node or self[fn].cmp(other[fn]))))):
                     modified.append(fn)
                 elif listclean:
                     clean.append(fn)
                 del mf1[fn]
             elif fn not in deletedset:
                 added.append(fn)
         removed = mf1.keys()
         if removed:
             # need to filter files if they are already reported as removed
             unknown = [fn for fn in unknown if fn not in mf1]
             ignored = [fn for fn in ignored if fn not in mf1]
 
         return scmutil.status(modified, added, removed, deleted, unknown,
                               ignored, clean)
 
     @propertycache
     def substate(self):
         return subrepo.state(self, self._repo.ui)
 
     def subrev(self, subpath):
         return self.substate[subpath][1]
 
     def rev(self):
         return self._rev
     def node(self):
         return self._node
     def hex(self):
         return hex(self.node())
     def manifest(self):
         return self._manifest
     def phasestr(self):
         return phases.phasenames[self.phase()]
     def mutable(self):
         return self.phase() > phases.public
 
     def getfileset(self, expr):
         return fileset.getfileset(self, expr)
 
     def obsolete(self):
         """True if the changeset is obsolete"""
         return self.rev() in obsmod.getrevs(self._repo, 'obsolete')
 
     def extinct(self):
         """True if the changeset is extinct"""
         return self.rev() in obsmod.getrevs(self._repo, 'extinct')
 
     def unstable(self):
         """True if the changeset is not obsolete but it's ancestor are"""
         return self.rev() in obsmod.getrevs(self._repo, 'unstable')
 
     def bumped(self):
         """True if the changeset try to be a successor of a public changeset
 
         Only non-public and non-obsolete changesets may be bumped.
         """
         return self.rev() in obsmod.getrevs(self._repo, 'bumped')
 
     def divergent(self):
         """Is a successors of a changeset with multiple possible successors set
 
         Only non-public and non-obsolete changesets may be divergent.
         """
         return self.rev() in obsmod.getrevs(self._repo, 'divergent')
 
     def troubled(self):
         """True if the changeset is either unstable, bumped or divergent"""
         return self.unstable() or self.bumped() or self.divergent()
 
     def troubles(self):
         """return the list of troubles affecting this changesets.
 
         Troubles are returned as strings. possible values are:
         - unstable,
         - bumped,
         - divergent.
         """
         troubles = []
         if self.unstable():
             troubles.append('unstable')
         if self.bumped():
             troubles.append('bumped')
         if self.divergent():
             troubles.append('divergent')
         return troubles
 
     def parents(self):
         """return contexts for each parent changeset"""
         return self._parents
 
     def p1(self):
         return self._parents[0]
 
     def p2(self):
         if len(self._parents) == 2:
             return self._parents[1]
         return changectx(self._repo, -1)
 
     def _fileinfo(self, path):
         if '_manifest' in self.__dict__:
             try:
                 return self._manifest[path], self._manifest.flags(path)
             except KeyError:
                 raise error.ManifestLookupError(self._node, path,
                                                 _('not found in manifest'))
         if '_manifestdelta' in self.__dict__ or path in self.files():
             if path in self._manifestdelta:
                 return (self._manifestdelta[path],
                         self._manifestdelta.flags(path))
         node, flag = self._repo.manifest.find(self._changeset[0], path)
         if not node:
             raise error.ManifestLookupError(self._node, path,
                                             _('not found in manifest'))
 
         return node, flag
 
     def filenode(self, path):
         return self._fileinfo(path)[0]
 
     def flags(self, path):
         try:
             return self._fileinfo(path)[1]
         except error.LookupError:
             return ''
 
     def sub(self, path):
         return subrepo.subrepo(self, path)
 
     def match(self, pats=[], include=None, exclude=None, default='glob'):
         r = self._repo
         return matchmod.match(r.root, r.getcwd(), pats,
                               include, exclude, default,
                               auditor=r.auditor, ctx=self)
 
     def diff(self, ctx2=None, match=None, **opts):
         """Returns a diff generator for the given contexts and matcher"""
         if ctx2 is None:
             ctx2 = self.p1()
         if ctx2 is not None:
             ctx2 = self._repo[ctx2]
         diffopts = patch.diffopts(self._repo.ui, opts)
         return patch.diff(self._repo, ctx2, self, match=match, opts=diffopts)
 
     @propertycache
     def _dirs(self):
         return scmutil.dirs(self._manifest)
 
     def dirs(self):
         return self._dirs
 
     def dirty(self, missing=False, merge=True, branch=True):
         return False
 
     def status(self, other=None, match=None, listignored=False,
                listclean=False, listunknown=False, listsubrepos=False):
         """return status of files between two nodes or node and working
         directory.
 
         If other is None, compare this node with working directory.
 
         returns (modified, added, removed, deleted, unknown, ignored, clean)
         """
 
         ctx1 = self
         ctx2 = self._repo[other]
 
         # This next code block is, admittedly, fragile logic that tests for
         # reversing the contexts and wouldn't need to exist if it weren't for
         # the fast (and common) code path of comparing the working directory
         # with its first parent.
         #
         # What we're aiming for here is the ability to call:
         #
         # workingctx.status(parentctx)
         #
         # If we always built the manifest for each context and compared those,
         # then we'd be done. But the special case of the above call means we
         # just copy the manifest of the parent.
         reversed = False
         if (not isinstance(ctx1, changectx)
             and isinstance(ctx2, changectx)):
             reversed = True
             ctx1, ctx2 = ctx2, ctx1
 
         match = ctx2._matchstatus(ctx1, match)
         r = scmutil.status([], [], [], [], [], [], [])
         r = ctx2._buildstatus(ctx1, r, match, listignored, listclean,
                               listunknown)
 
         if reversed:
             # Reverse added and removed. Clear deleted, unknown and ignored as
             # these make no sense to reverse.
             r = scmutil.status(r.modified, r.removed, r.added, [], [], [],
                                r.clean)
 
         if listsubrepos:
             for subpath, sub in scmutil.itersubrepos(ctx1, ctx2):
                 rev2 = ctx2.subrev(subpath)
                 try:
                     submatch = matchmod.narrowmatcher(subpath, match)
                     s = sub.status(rev2, match=submatch, ignored=listignored,
                                    clean=listclean, unknown=listunknown,
                                    listsubrepos=True)
                     for rfiles, sfiles in zip(r, s):
                         rfiles.extend("%s/%s" % (subpath, f) for f in sfiles)
                 except error.LookupError:
                     self._repo.ui.status(_("skipping missing "
                                            "subrepository: %s\n") % subpath)
 
         for l in r:
             l.sort()
 
         return r
 
 
 def makememctx(repo, parents, text, user, date, branch, files, store,
                editor=None):
     def getfilectx(repo, memctx, path):
         data, mode, copied = store.getfile(path)
         if data is None:
             return None
         islink, isexec = mode
         return memfilectx(repo, path, data, islink=islink, isexec=isexec,
                                   copied=copied, memctx=memctx)
     extra = {}
     if branch:
         extra['branch'] = encoding.fromlocal(branch)
     ctx =  memctx(repo, parents, text, files, getfilectx, user,
                           date, extra, editor)
     return ctx
 
 class changectx(basectx):
     """A changecontext object makes access to data related to a particular
     changeset convenient. It represents a read-only context already present in
     the repo."""
     def __init__(self, repo, changeid=''):
         """changeid is a revision number, node, or tag"""
 
         # since basectx.__new__ already took care of copying the object, we
         # don't need to do anything in __init__, so we just exit here
         if isinstance(changeid, basectx):
             return
 
         if changeid == '':
             changeid = '.'
         self._repo = repo
 
         try:
             if isinstance(changeid, int):
                 self._node = repo.changelog.node(changeid)
                 self._rev = changeid
                 return
             if isinstance(changeid, long):
                 changeid = str(changeid)
             if changeid == '.':
                 self._node = repo.dirstate.p1()
                 self._rev = repo.changelog.rev(self._node)
                 return
             if changeid == 'null':
                 self._node = nullid
                 self._rev = nullrev
                 return
             if changeid == 'tip':
                 self._node = repo.changelog.tip()
                 self._rev = repo.changelog.rev(self._node)
                 return
             if len(changeid) == 20:
                 try:
                     self._node = changeid
                     self._rev = repo.changelog.rev(changeid)
                     return
                 except error.FilteredRepoLookupError:
                     raise
                 except LookupError:
                     pass
 
             try:
                 r = int(changeid)
                 if str(r) != changeid:
                     raise ValueError
                 l = len(repo.changelog)
                 if r < 0:
                     r += l
                 if r < 0 or r >= l:
                     raise ValueError
                 self._rev = r
                 self._node = repo.changelog.node(r)
                 return
             except error.FilteredIndexError:
                 raise
             except (ValueError, OverflowError, IndexError):
                 pass
 
             if len(changeid) == 40:
                 try:
                     self._node = bin(changeid)
                     self._rev = repo.changelog.rev(self._node)
                     return
                 except error.FilteredLookupError:
                     raise
                 except (TypeError, LookupError):
                     pass
 
             # lookup bookmarks through the name interface
             try:
                 self._node = repo.names.singlenode(repo, changeid)
                 self._rev = repo.changelog.rev(self._node)
                 return
             except KeyError:
                 pass
             except error.FilteredRepoLookupError:
                 raise
             except error.RepoLookupError:
                 pass
 
             self._node = repo.unfiltered().changelog._partialmatch(changeid)
             if self._node is not None:
                 self._rev = repo.changelog.rev(self._node)
                 return
 
             # lookup failed
             # check if it might have come from damaged dirstate
             #
             # XXX we could avoid the unfiltered if we had a recognizable
             # exception for filtered changeset access
             if changeid in repo.unfiltered().dirstate.parents():
                 msg = _("working directory has unknown parent '%s'!")
                 raise error.Abort(msg % short(changeid))
             try:
                 if len(changeid) == 20:
                     changeid = hex(changeid)
             except TypeError:
                 pass
         except (error.FilteredIndexError, error.FilteredLookupError,
                 error.FilteredRepoLookupError):
             if repo.filtername == 'visible':
                 msg = _("hidden revision '%s'") % changeid
                 hint = _('use --hidden to access hidden revisions')
                 raise error.FilteredRepoLookupError(msg, hint=hint)
             msg = _("filtered revision '%s' (not in '%s' subset)")
             msg %= (changeid, repo.filtername)
             raise error.FilteredRepoLookupError(msg)
         except IndexError:
             pass
         raise error.RepoLookupError(
             _("unknown revision '%s'") % changeid)
 
     def __hash__(self):
         try:
             return hash(self._rev)
         except AttributeError:
             return id(self)
 
     def __nonzero__(self):
         return self._rev != nullrev
 
     @propertycache
     def _changeset(self):
         return self._repo.changelog.read(self.rev())
 
     @propertycache
     def _manifest(self):
         return self._repo.manifest.read(self._changeset[0])
 
     @propertycache
     def _manifestdelta(self):
         return self._repo.manifest.readdelta(self._changeset[0])
 
     @propertycache
     def _parents(self):
         p = self._repo.changelog.parentrevs(self._rev)
         if p[1] == nullrev:
             p = p[:-1]
         return [changectx(self._repo, x) for x in p]
 
     def changeset(self):
         return self._changeset
     def manifestnode(self):
         return self._changeset[0]
 
     def user(self):
         return self._changeset[1]
     def date(self):
         return self._changeset[2]
     def files(self):
         return self._changeset[3]
     def description(self):
         return self._changeset[4]
     def branch(self):
         return encoding.tolocal(self._changeset[5].get("branch"))
     def closesbranch(self):
         return 'close' in self._changeset[5]
     def extra(self):
         return self._changeset[5]
     def tags(self):
         return self._repo.nodetags(self._node)
     def bookmarks(self):
         return self._repo.nodebookmarks(self._node)
     def phase(self):
         return self._repo._phasecache.phase(self._repo, self._rev)
     def hidden(self):
         return self._rev in repoview.filterrevs(self._repo, 'visible')
 
     def children(self):
         """return contexts for each child changeset"""
         c = self._repo.changelog.children(self._node)
         return [changectx(self._repo, x) for x in c]
 
     def ancestors(self):
         for a in self._repo.changelog.ancestors([self._rev]):
             yield changectx(self._repo, a)
 
     def descendants(self):
         for d in self._repo.changelog.descendants([self._rev]):
             yield changectx(self._repo, d)
 
     def filectx(self, path, fileid=None, filelog=None):
         """get a file context from this changeset"""
         if fileid is None:
             fileid = self.filenode(path)
         return filectx(self._repo, path, fileid=fileid,
                        changectx=self, filelog=filelog)
 
     def ancestor(self, c2, warn=False):
         """return the "best" ancestor context of self and c2
 
         If there are multiple candidates, it will show a message and check
         merge.preferancestor configuration before falling back to the
         revlog ancestor."""
         # deal with workingctxs
         n2 = c2._node
         if n2 is None:
             n2 = c2._parents[0]._node
         cahs = self._repo.changelog.commonancestorsheads(self._node, n2)
         if not cahs:
             anc = nullid
         elif len(cahs) == 1:
             anc = cahs[0]
         else:
             for r in self._repo.ui.configlist('merge', 'preferancestor'):
                 try:
                     ctx = changectx(self._repo, r)
                 except error.RepoLookupError:
                     continue
                 anc = ctx.node()
                 if anc in cahs:
                     break
             else:
                 anc = self._repo.changelog.ancestor(self._node, n2)
             if warn:
                 self._repo.ui.status(
                     (_("note: using %s as ancestor of %s and %s\n") %
                      (short(anc), short(self._node), short(n2))) +
                     ''.join(_("      alternatively, use --config "
                               "merge.preferancestor=%s\n") %
                             short(n) for n in sorted(cahs) if n != anc))
         return changectx(self._repo, anc)
 
     def descendant(self, other):
         """True if other is descendant of this changeset"""
         return self._repo.changelog.descendant(self._rev, other._rev)
 
     def walk(self, match):
         fset = set(match.files())
         # for dirstate.walk, files=['.'] means "walk the whole tree".
         # follow that here, too
         fset.discard('.')
 
         # avoid the entire walk if we're only looking for specific files
         if fset and not match.anypats():
             if util.all([fn in self for fn in fset]):
                 for fn in sorted(fset):
                     if match(fn):
                         yield fn
                 raise StopIteration
 
         for fn in self:
             if fn in fset:
                 # specified pattern is the exact name
                 fset.remove(fn)
             if match(fn):
                 yield fn
         for fn in sorted(fset):
             if fn in self._dirs:
                 # specified pattern is a directory
                 continue
             match.bad(fn, _('no such file in rev %s') % self)
 
     def matches(self, match):
         return self.walk(match)
 
 class basefilectx(object):
     """A filecontext object represents the common logic for its children:
     filectx: read-only access to a filerevision that is already present
              in the repo,
     workingfilectx: a filecontext that represents files from the working
                     directory,
     memfilectx: a filecontext that represents files in-memory."""
     def __new__(cls, repo, path, *args, **kwargs):
         return super(basefilectx, cls).__new__(cls)
 
     @propertycache
     def _filelog(self):
         return self._repo.file(self._path)
 
     @propertycache
     def _changeid(self):
         if '_changeid' in self.__dict__:
             return self._changeid
         elif '_changectx' in self.__dict__:
             return self._changectx.rev()
         else:
             return self._filelog.linkrev(self._filerev)
 
     @propertycache
     def _filenode(self):
         if '_fileid' in self.__dict__:
             return self._filelog.lookup(self._fileid)
         else:
             return self._changectx.filenode(self._path)
 
     @propertycache
     def _filerev(self):
         return self._filelog.rev(self._filenode)
 
     @propertycache
     def _repopath(self):
         return self._path
 
     def __nonzero__(self):
         try:
             self._filenode
             return True
         except error.LookupError:
             # file is missing
             return False
 
     def __str__(self):
         return "%s@%s" % (self.path(), self._changectx)
 
     def __repr__(self):
         return "<%s %s>" % (type(self).__name__, str(self))
 
     def __hash__(self):
         try:
             return hash((self._path, self._filenode))
         except AttributeError:
             return id(self)
 
     def __eq__(self, other):
         try:
             return (type(self) == type(other) and self._path == other._path
                     and self._filenode == other._filenode)
         except AttributeError:
             return False
 
     def __ne__(self, other):
         return not (self == other)
 
     def filerev(self):
         return self._filerev
     def filenode(self):
         return self._filenode
     def flags(self):
         return self._changectx.flags(self._path)
     def filelog(self):
         return self._filelog
     def rev(self):
         return self._changeid
     def linkrev(self):
         return self._filelog.linkrev(self._filerev)
     def node(self):
         return self._changectx.node()
     def hex(self):
         return self._changectx.hex()
     def user(self):
         return self._changectx.user()
     def date(self):
         return self._changectx.date()
     def files(self):
         return self._changectx.files()
     def description(self):
         return self._changectx.description()
     def branch(self):
         return self._changectx.branch()
     def extra(self):
         return self._changectx.extra()
     def phase(self):
         return self._changectx.phase()
     def phasestr(self):
         return self._changectx.phasestr()
     def manifest(self):
         return self._changectx.manifest()
     def changectx(self):
         return self._changectx
 
     def path(self):
         return self._path
 
     def isbinary(self):
         try:
             return util.binary(self.data())
         except IOError:
             return False
     def isexec(self):
         return 'x' in self.flags()
     def islink(self):
         return 'l' in self.flags()
 
     def cmp(self, fctx):
         """compare with other file context
 
         returns True if different than fctx.
         """
         if (fctx._filerev is None
             and (self._repo._encodefilterpats
                  # if file data starts with '\1\n', empty metadata block is
                  # prepended, which adds 4 bytes to filelog.size().
                  or self.size() - 4 == fctx.size())
             or self.size() == fctx.size()):
             return self._filelog.cmp(self._filenode, fctx.data())
 
         return True
 
     def parents(self):
         _path = self._path
         fl = self._filelog
         pl = [(_path, n, fl) for n in self._filelog.parents(self._filenode)]
 
         r = self._filelog.renamed(self._filenode)
         if r:
             pl[0] = (r[0], r[1], None)
 
         return [filectx(self._repo, p, fileid=n, filelog=l)
                 for p, n, l in pl if n != nullid]
 
     def p1(self):
         return self.parents()[0]
 
     def p2(self):
         p = self.parents()
         if len(p) == 2:
             return p[1]
         return filectx(self._repo, self._path, fileid=-1, filelog=self._filelog)
 
     def annotate(self, follow=False, linenumber=None, diffopts=None):
         '''returns a list of tuples of (ctx, line) for each line
         in the file, where ctx is the filectx of the node where
         that line was last changed.
         This returns tuples of ((ctx, linenumber), line) for each line,
         if "linenumber" parameter is NOT "None".
         In such tuples, linenumber means one at the first appearance
         in the managed file.
         To reduce annotation cost,
         this returns fixed value(False is used) as linenumber,
         if "linenumber" parameter is "False".'''
 
         if linenumber is None:
             def decorate(text, rev):
                 return ([rev] * len(text.splitlines()), text)
         elif linenumber:
             def decorate(text, rev):
                 size = len(text.splitlines())
                 return ([(rev, i) for i in xrange(1, size + 1)], text)
         else:
             def decorate(text, rev):
                 return ([(rev, False)] * len(text.splitlines()), text)
 
         def pair(parent, child):
             blocks = mdiff.allblocks(parent[1], child[1], opts=diffopts,
                                      refine=True)
             for (a1, a2, b1, b2), t in blocks:
                 # Changed blocks ('!') or blocks made only of blank lines ('~')
                 # belong to the child.
                 if t == '=':
                     child[0][b1:b2] = parent[0][a1:a2]
             return child
 
         getlog = util.lrucachefunc(lambda x: self._repo.file(x))
 
         def parents(f):
             pl = f.parents()
 
             # Don't return renamed parents if we aren't following.
             if not follow:
                 pl = [p for p in pl if p.path() == f.path()]
 
             # renamed filectx won't have a filelog yet, so set it
             # from the cache to save time
             for p in pl:
                 if not '_filelog' in p.__dict__:
                     p._filelog = getlog(p.path())
 
             return pl
 
         # use linkrev to find the first changeset where self appeared
         if self.rev() != self.linkrev():
             base = self.filectx(self.filenode())
         else:
             base = self
 
         # This algorithm would prefer to be recursive, but Python is a
         # bit recursion-hostile. Instead we do an iterative
         # depth-first search.
 
         visit = [base]
         hist = {}
         pcache = {}
         needed = {base: 1}
         while visit:
             f = visit[-1]
             pcached = f in pcache
             if not pcached:
                 pcache[f] = parents(f)
 
             ready = True
             pl = pcache[f]
             for p in pl:
                 if p not in hist:
                     ready = False
                     visit.append(p)
                 if not pcached:
                     needed[p] = needed.get(p, 0) + 1
             if ready:
                 visit.pop()
                 reusable = f in hist
                 if reusable:
                     curr = hist[f]
                 else:
                     curr = decorate(f.data(), f)
                 for p in pl:
                     if not reusable:
                         curr = pair(hist[p], curr)
                     if needed[p] == 1:
                         del hist[p]
                         del needed[p]
                     else:
                         needed[p] -= 1
 
                 hist[f] = curr
                 pcache[f] = []
 
         return zip(hist[base][0], hist[base][1].splitlines(True))
 
     def ancestors(self, followfirst=False):
         visit = {}
         c = self
         cut = followfirst and 1 or None
         while True:
             for parent in c.parents()[:cut]:
                 visit[(parent.rev(), parent.node())] = parent
             if not visit:
                 break
             c = visit.pop(max(visit))
             yield c
 
 class filectx(basefilectx):
     """A filecontext object makes access to data related to a particular
        filerevision convenient."""
     def __init__(self, repo, path, changeid=None, fileid=None,
                  filelog=None, changectx=None):
         """changeid can be a changeset revision, node, or tag.
            fileid can be a file revision or node."""
         self._repo = repo
         self._path = path
 
         assert (changeid is not None
                 or fileid is not None
                 or changectx is not None), \
                 ("bad args: changeid=%r, fileid=%r, changectx=%r"
                  % (changeid, fileid, changectx))
 
         if filelog is not None:
             self._filelog = filelog
 
         if changeid is not None:
             self._changeid = changeid
         if changectx is not None:
             self._changectx = changectx
         if fileid is not None:
             self._fileid = fileid
 
     @propertycache
     def _changectx(self):
         try:
             return changectx(self._repo, self._changeid)
         except error.RepoLookupError:
             # Linkrev may point to any revision in the repository.  When the
             # repository is filtered this may lead to `filectx` trying to build
             # `changectx` for filtered revision. In such case we fallback to
             # creating `changectx` on the unfiltered version of the reposition.
             # This fallback should not be an issue because `changectx` from
             # `filectx` are not used in complex operations that care about
             # filtering.
             #
             # This fallback is a cheap and dirty fix that prevent several
             # crashes. It does not ensure the behavior is correct. However the
             # behavior was not correct before filtering either and "incorrect
             # behavior" is seen as better as "crash"
             #
             # Linkrevs have several serious troubles with filtering that are
             # complicated to solve. Proper handling of the issue here should be
             # considered when solving linkrev issue are on the table.
             return changectx(self._repo.unfiltered(), self._changeid)
 
     def filectx(self, fileid):
         '''opens an arbitrary revision of the file without
         opening a new filelog'''
         return filectx(self._repo, self._path, fileid=fileid,
                        filelog=self._filelog)
 
     def data(self):
         try:
             return self._filelog.read(self._filenode)
         except error.CensoredNodeError:
             if self._repo.ui.config("censor", "policy", "abort") == "ignore":
                 return ""
             raise util.Abort(_("censored node: %s") % short(self._filenode),
                              hint=_("set censor.policy to ignore errors"))
 
     def size(self):
         return self._filelog.size(self._filerev)
 
     def renamed(self):
         """check if file was actually renamed in this changeset revision
 
         If rename logged in file revision, we report copy for changeset only
         if file revisions linkrev points back to the changeset in question
         or both changeset parents contain different file revisions.
         """
 
         renamed = self._filelog.renamed(self._filenode)
         if not renamed:
             return renamed
 
         if self.rev() == self.linkrev():
             return renamed
 
         name = self.path()
         fnode = self._filenode
         for p in self._changectx.parents():
             try:
                 if fnode == p.filenode(name):
                     return None
             except error.LookupError:
                 pass
         return renamed
 
     def children(self):
         # hard for renames
         c = self._filelog.children(self._filenode)
         return [filectx(self._repo, self._path, fileid=x,
                         filelog=self._filelog) for x in c]
 
 class committablectx(basectx):
     """A committablectx object provides common functionality for a context that
     wants the ability to commit, e.g. workingctx or memctx."""
     def __init__(self, repo, text="", user=None, date=None, extra=None,
                  changes=None):
         self._repo = repo
         self._rev = None
         self._node = None
         self._text = text
         if date:
             self._date = util.parsedate(date)
         if user:
             self._user = user
         if changes:
             self._status = changes
 
         self._extra = {}
         if extra:
             self._extra = extra.copy()
         if 'branch' not in self._extra:
             try:
                 branch = encoding.fromlocal(self._repo.dirstate.branch())
             except UnicodeDecodeError:
                 raise util.Abort(_('branch name not in UTF-8!'))
             self._extra['branch'] = branch
         if self._extra['branch'] == '':
             self._extra['branch'] = 'default'
 
     def __str__(self):
         return str(self._parents[0]) + "+"
 
     def __nonzero__(self):
         return True
 
     def _buildflagfunc(self):
         # Create a fallback function for getting file flags when the
         # filesystem doesn't support them
 
         copiesget = self._repo.dirstate.copies().get
 
         if len(self._parents) < 2:
             # when we have one parent, it's easy: copy from parent
             man = self._parents[0].manifest()
             def func(f):
                 f = copiesget(f, f)
                 return man.flags(f)
         else:
             # merges are tricky: we try to reconstruct the unstored
             # result from the merge (issue1802)
             p1, p2 = self._parents
             pa = p1.ancestor(p2)
             m1, m2, ma = p1.manifest(), p2.manifest(), pa.manifest()
 
             def func(f):
                 f = copiesget(f, f) # may be wrong for merges with copies
                 fl1, fl2, fla = m1.flags(f), m2.flags(f), ma.flags(f)
                 if fl1 == fl2:
                     return fl1
                 if fl1 == fla:
                     return fl2
                 if fl2 == fla:
                     return fl1
                 return '' # punt for conflicts
 
         return func
 
     @propertycache
     def _flagfunc(self):
         return self._repo.dirstate.flagfunc(self._buildflagfunc)
 
     @propertycache
     def _manifest(self):
         """generate a manifest corresponding to the values in self._status
 
         This reuse the file nodeid from parent, but we append an extra letter
         when modified. Modified files get an extra 'm' while added files get
         an extra 'a'. This is used by manifests merge to see that files
         are different and by update logic to avoid deleting newly added files.
         """
 
         man1 = self._parents[0].manifest()
         man = man1.copy()
         if len(self._parents) > 1:
             man2 = self.p2().manifest()
             def getman(f):
                 if f in man1:
                     return man1
                 return man2
         else:
             getman = lambda f: man1
 
         copied = self._repo.dirstate.copies()
         ff = self._flagfunc
         for i, l in (("a", self._status.added), ("m", self._status.modified)):
             for f in l:
                 orig = copied.get(f, f)
                 man[f] = getman(orig).get(orig, nullid) + i
                 try:
                     man.setflag(f, ff(f))
                 except OSError:
                     pass
 
         for f in self._status.deleted + self._status.removed:
             if f in man:
                 del man[f]
 
         return man
 
     @propertycache
     def _status(self):
         return self._repo.status()
 
     @propertycache
     def _user(self):
         return self._repo.ui.username()
 
     @propertycache
     def _date(self):
         return util.makedate()
 
     def subrev(self, subpath):
         return None
 
     def user(self):
         return self._user or self._repo.ui.username()
     def date(self):
         return self._date
     def description(self):
         return self._text
     def files(self):
         return sorted(self._status.modified + self._status.added +
                       self._status.removed)
 
     def modified(self):
         return self._status.modified
     def added(self):
         return self._status.added
     def removed(self):
         return self._status.removed
     def deleted(self):
         return self._status.deleted
     def unknown(self):
         return self._status.unknown
     def ignored(self):
         return self._status.ignored
     def clean(self):
         return self._status.clean
     def branch(self):
         return encoding.tolocal(self._extra['branch'])
     def closesbranch(self):
         return 'close' in self._extra
     def extra(self):
         return self._extra
 
     def tags(self):
         t = []
         for p in self.parents():
             t.extend(p.tags())
         return t
 
     def bookmarks(self):
         b = []
         for p in self.parents():
             b.extend(p.bookmarks())
         return b
 
     def phase(self):
         phase = phases.draft # default phase to draft
         for p in self.parents():
             phase = max(phase, p.phase())
         return phase
 
     def hidden(self):
         return False
 
     def children(self):
         return []
 
     def flags(self, path):
         if '_manifest' in self.__dict__:
             try:
                 return self._manifest.flags(path)
             except KeyError:
                 return ''
 
         try:
             return self._flagfunc(path)
         except OSError:
             return ''
 
     def ancestor(self, c2):
         """return the "best" ancestor context of self and c2"""
         return self._parents[0].ancestor(c2) # punt on two parents for now
 
     def walk(self, match):
         return sorted(self._repo.dirstate.walk(match, sorted(self.substate),
                                                True, False))
 
     def matches(self, match):
         return sorted(self._repo.dirstate.matches(match))
 
     def ancestors(self):
         for a in self._repo.changelog.ancestors(
             [p.rev() for p in self._parents]):
             yield changectx(self._repo, a)
 
     def markcommitted(self, node):
         """Perform post-commit cleanup necessary after committing this ctx
 
         Specifically, this updates backing stores this working context
         wraps to reflect the fact that the changes reflected by this
         workingctx have been committed.  For example, it marks
         modified and added files as normal in the dirstate.
 
         """
 
         self._repo.dirstate.beginparentchange()
         for f in self.modified() + self.added():
             self._repo.dirstate.normal(f)
         for f in self.removed():
             self._repo.dirstate.drop(f)
         self._repo.dirstate.setparents(node)
         self._repo.dirstate.endparentchange()
 
     def dirs(self):
         return self._repo.dirstate.dirs()
 
 class workingctx(committablectx):
     """A workingctx object makes access to data related to
     the current working directory convenient.
     date - any valid date string or (unixtime, offset), or None.
     user - username string, or None.
     extra - a dictionary of extra values, or None.
     changes - a list of file lists as returned by localrepo.status()
                or None to use the repository status.
     """
     def __init__(self, repo, text="", user=None, date=None, extra=None,
                  changes=None):
         super(workingctx, self).__init__(repo, text, user, date, extra, changes)
 
     def __iter__(self):
         d = self._repo.dirstate
         for f in d:
             if d[f] != 'r':
                 yield f
 
     def __contains__(self, key):
         return self._repo.dirstate[key] not in "?r"
 
     @propertycache
     def _parents(self):
         p = self._repo.dirstate.parents()
         if p[1] == nullid:
             p = p[:-1]
         return [changectx(self._repo, x) for x in p]
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory"""
         return workingfilectx(self._repo, path, workingctx=self,
                               filelog=filelog)
 
     def dirty(self, missing=False, merge=True, branch=True):
         "check whether a working directory is modified"
         # check subrepos first
         for s in sorted(self.substate):
             if self.sub(s).dirty():
                 return True
         # check current working dir
         return ((merge and self.p2()) or
                 (branch and self.branch() != self.p1().branch()) or
                 self.modified() or self.added() or self.removed() or
                 (missing and self.deleted()))
 
     def add(self, list, prefix=""):
         join = lambda f: os.path.join(prefix, f)
         wlock = self._repo.wlock()
         ui, ds = self._repo.ui, self._repo.dirstate
         try:
             rejected = []
             lstat = self._repo.wvfs.lstat
             for f in list:
                 scmutil.checkportable(ui, join(f))
                 try:
                     st = lstat(f)
                 except OSError:
                     ui.warn(_("%s does not exist!\n") % join(f))
                     rejected.append(f)
                     continue
                 if st.st_size > 10000000:
                     ui.warn(_("%s: up to %d MB of RAM may be required "
                               "to manage this file\n"
                               "(use 'hg revert %s' to cancel the "
                               "pending addition)\n")
                               % (f, 3 * st.st_size // 1000000, join(f)))
                 if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
                     ui.warn(_("%s not added: only files and symlinks "
                               "supported currently\n") % join(f))
                     rejected.append(f)
                 elif ds[f] in 'amn':
                     ui.warn(_("%s already tracked!\n") % join(f))
                 elif ds[f] == 'r':
                     ds.normallookup(f)
                 else:
                     ds.add(f)
             return rejected
         finally:
             wlock.release()
 
     def forget(self, files, prefix=""):
         join = lambda f: os.path.join(prefix, f)
         wlock = self._repo.wlock()
         try:
             rejected = []
             for f in files:
                 if f not in self._repo.dirstate:
                     self._repo.ui.warn(_("%s not tracked!\n") % join(f))
                     rejected.append(f)
                 elif self._repo.dirstate[f] != 'a':
                     self._repo.dirstate.remove(f)
                 else:
                     self._repo.dirstate.drop(f)
             return rejected
         finally:
             wlock.release()
 
     def undelete(self, list):
         pctxs = self.parents()
         wlock = self._repo.wlock()
         try:
             for f in list:
                 if self._repo.dirstate[f] != 'r':
                     self._repo.ui.warn(_("%s not removed!\n") % f)
                 else:
                     fctx = f in pctxs[0] and pctxs[0][f] or pctxs[1][f]
                     t = fctx.data()
                     self._repo.wwrite(f, t, fctx.flags())
                     self._repo.dirstate.normal(f)
         finally:
             wlock.release()
 
     def copy(self, source, dest):
         try:
             st = self._repo.wvfs.lstat(dest)
         except OSError, err:
             if err.errno != errno.ENOENT:
                 raise
             self._repo.ui.warn(_("%s does not exist!\n") % dest)
             return
         if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
             self._repo.ui.warn(_("copy failed: %s is not a file or a "
                                  "symbolic link\n") % dest)
         else:
             wlock = self._repo.wlock()
             try:
                 if self._repo.dirstate[dest] in '?':
                     self._repo.dirstate.add(dest)
                 elif self._repo.dirstate[dest] in 'r':
                     self._repo.dirstate.normallookup(dest)
                 self._repo.dirstate.copy(source, dest)
             finally:
                 wlock.release()
 
     def _filtersuspectsymlink(self, files):
         if not files or self._repo.dirstate._checklink:
             return files
 
         # Symlink placeholders may get non-symlink-like contents
         # via user error or dereferencing by NFS or Samba servers,
         # so we filter out any placeholders that don't look like a
         # symlink
         sane = []
         for f in files:
             if self.flags(f) == 'l':
                 d = self[f].data()
                 if d == '' or len(d) >= 1024 or '\n' in d or util.binary(d):
                     self._repo.ui.debug('ignoring suspect symlink placeholder'
                                         ' "%s"\n' % f)
                     continue
             sane.append(f)
         return sane
 
     def _checklookup(self, files):
         # check for any possibly clean files
         if not files:
             return [], []
 
         modified = []
         fixup = []
         pctx = self._parents[0]
         # do a full compare of any files that might have changed
         for f in sorted(files):
             if (f not in pctx or self.flags(f) != pctx.flags(f)
                 or pctx[f].cmp(self[f])):
                 modified.append(f)
             else:
                 fixup.append(f)
 
         # update dirstate for files that are actually clean
         if fixup:
             try:
                 # updating the dirstate is optional
                 # so we don't wait on the lock
                 # wlock can invalidate the dirstate, so cache normal _after_
                 # taking the lock
                 wlock = self._repo.wlock(False)
                 normal = self._repo.dirstate.normal
                 try:
                     for f in fixup:
                         normal(f)
                 finally:
                     wlock.release()
             except error.LockError:
                 pass
         return modified, fixup
 
     def _manifestmatches(self, match, s):
         """Slow path for workingctx
 
         The fast path is when we compare the working directory to its parent
         which means this function is comparing with a non-parent; therefore we
         need to build a manifest and return what matches.
         """
         mf = self._repo['.']._manifestmatches(match, s)
         for f in s.modified + s.added:
             mf[f] = None
             mf.setflag(f, self.flags(f))
         for f in s.removed:
             if f in mf:
                 del mf[f]
         return mf
 
     def _dirstatestatus(self, match=None, ignored=False, clean=False,
                         unknown=False):
         '''Gets the status from the dirstate -- internal use only.'''
         listignored, listclean, listunknown = ignored, clean, unknown
         match = match or matchmod.always(self._repo.root, self._repo.getcwd())
         subrepos = []
         if '.hgsub' in self:
             subrepos = sorted(self.substate)
         cmp, s = self._repo.dirstate.status(match, subrepos, listignored,
                                             listclean, listunknown)
 
         # check for any possibly clean files
         if cmp:
             modified2, fixup = self._checklookup(cmp)
             s.modified.extend(modified2)
 
             # update dirstate for files that are actually clean
             if fixup and listclean:
                 s.clean.extend(fixup)
 
         return s
 
     def _buildstatus(self, other, s, match, listignored, listclean,
                      listunknown):
         """build a status with respect to another context
 
         This includes logic for maintaining the fast path of status when
         comparing the working directory against its parent, which is to skip
         building a new manifest if self (working directory) is not comparing
         against its parent (repo['.']).
         """
         s = self._dirstatestatus(match, listignored, listclean, listunknown)
         # Filter out symlinks that, in the case of FAT32 and NTFS filesystems,
         # might have accidentally ended up with the entire contents of the file
         # they are supposed to be linking to.
         s.modified[:] = self._filtersuspectsymlink(s.modified)
         if other != self._repo['.']:
             s = super(workingctx, self)._buildstatus(other, s, match,
                                                      listignored, listclean,
                                                      listunknown)
         self._status = s
         return s
 
     def _matchstatus(self, other, match):
         """override the match method with a filter for directory patterns
 
         We use inheritance to customize the match.bad method only in cases of
         workingctx since it belongs only to the working directory when
         comparing against the parent changeset.
 
         If we aren't comparing against the working directory's parent, then we
         just use the default match object sent to us.
         """
         superself = super(workingctx, self)
         match = superself._matchstatus(other, match)
         if other != self._repo['.']:
             def bad(f, msg):
                 # 'f' may be a directory pattern from 'match.files()',
                 # so 'f not in ctx1' is not enough
                 if f not in other and f not in other.dirs():
                     self._repo.ui.warn('%s: %s\n' %
                                        (self._repo.dirstate.pathto(f), msg))
             match.bad = bad
         return match
 
 class committablefilectx(basefilectx):
     """A committablefilectx provides common functionality for a file context
     that wants the ability to commit, e.g. workingfilectx or memfilectx."""
     def __init__(self, repo, path, filelog=None, ctx=None):
         self._repo = repo
         self._path = path
         self._changeid = None
         self._filerev = self._filenode = None
 
         if filelog is not None:
             self._filelog = filelog
         if ctx:
             self._changectx = ctx
 
     def __nonzero__(self):
         return True
 
     def parents(self):
         '''return parent filectxs, following copies if necessary'''
         def filenode(ctx, path):
             return ctx._manifest.get(path, nullid)
 
         path = self._path
         fl = self._filelog
         pcl = self._changectx._parents
         renamed = self.renamed()
 
         if renamed:
             pl = [renamed + (None,)]
         else:
             pl = [(path, filenode(pcl[0], path), fl)]
 
         for pc in pcl[1:]:
             pl.append((path, filenode(pc, path), fl))
 
         return [filectx(self._repo, p, fileid=n, filelog=l)
                 for p, n, l in pl if n != nullid]
 
     def children(self):
         return []
 
 class workingfilectx(committablefilectx):
     """A workingfilectx object makes access to data related to a particular
        file in the working directory convenient."""
     def __init__(self, repo, path, filelog=None, workingctx=None):
         super(workingfilectx, self).__init__(repo, path, filelog, workingctx)
 
     @propertycache
     def _changectx(self):
         return workingctx(self._repo)
 
     def data(self):
         return self._repo.wread(self._path)
     def renamed(self):
         rp = self._repo.dirstate.copied(self._path)
         if not rp:
             return None
         return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
 
     def size(self):
         return self._repo.wvfs.lstat(self._path).st_size
     def date(self):
         t, tz = self._changectx.date()
         try:
             return (int(self._repo.wvfs.lstat(self._path).st_mtime), tz)
         except OSError, err:
             if err.errno != errno.ENOENT:
                 raise
             return (t, tz)
 
     def cmp(self, fctx):
         """compare with other file context
 
         returns True if different than fctx.
         """
         # fctx should be a filectx (not a workingfilectx)
         # invert comparison to reuse the same code path
         return fctx.cmp(self)
 
     def remove(self, ignoremissing=False):
         """wraps unlink for a repo's working directory"""
         util.unlinkpath(self._repo.wjoin(self._path), ignoremissing)
 
     def write(self, data, flags):
         """wraps repo.wwrite"""
         self._repo.wwrite(self._path, data, flags)
 
 class memctx(committablectx):
     """Use memctx to perform in-memory commits via localrepo.commitctx().
 
     Revision information is supplied at initialization time while
     related files data and is made available through a callback
     mechanism.  'repo' is the current localrepo, 'parents' is a
     sequence of two parent revisions identifiers (pass None for every
     missing parent), 'text' is the commit message and 'files' lists
     names of files touched by the revision (normalized and relative to
     repository root).
 
     filectxfn(repo, memctx, path) is a callable receiving the
     repository, the current memctx object and the normalized path of
     requested file, relative to repository root. It is fired by the
     commit function for every file in 'files', but calls order is
     undefined. If the file is available in the revision being
     committed (updated or added), filectxfn returns a memfilectx
     object. If the file was removed, filectxfn raises an
     IOError. Moved files are represented by marking the source file
     removed and the new file added with copy information (see
     memfilectx).
 
     user receives the committer name and defaults to current
     repository username, date is the commit date in any format
     supported by util.parsedate() and defaults to current date, extra
     is a dictionary of metadata or is left empty.
     """
 
     # Mercurial <= 3.1 expects the filectxfn to raise IOError for missing files.
     # Extensions that need to retain compatibility across Mercurial 3.1 can use
     # this field to determine what to do in filectxfn.
     _returnnoneformissingfiles = True
 
     def __init__(self, repo, parents, text, files, filectxfn, user=None,
                  date=None, extra=None, editor=False):
         super(memctx, self).__init__(repo, text, user, date, extra)
         self._rev = None
         self._node = None
         parents = [(p or nullid) for p in parents]
         p1, p2 = parents
         self._parents = [changectx(self._repo, p) for p in (p1, p2)]
         files = sorted(set(files))
-        self._status = scmutil.status(files, [], [], [], [], [], [])
-        self._filectxfn = filectxfn
+        self._files = files
         self.substate = {}
 
         # if store is not callable, wrap it in a function
         if not callable(filectxfn):
             def getfilectx(repo, memctx, path):
                 fctx = filectxfn[path]
                 # this is weird but apparently we only keep track of one parent
                 # (why not only store that instead of a tuple?)
                 copied = fctx.renamed()
                 if copied:
                     copied = copied[0]
                 return memfilectx(repo, path, fctx.data(),
                                   islink=fctx.islink(), isexec=fctx.isexec(),
                                   copied=copied, memctx=memctx)
             self._filectxfn = getfilectx
+        else:
+            # "util.cachefunc" reduces invocation of possibly expensive
+            # "filectxfn" for performance (e.g. converting from another VCS)
+            self._filectxfn = util.cachefunc(filectxfn)
 
         self._extra = extra and extra.copy() or {}
         if self._extra.get('branch', '') == '':
             self._extra['branch'] = 'default'
 
         if editor:
             self._text = editor(self._repo, self, [])
             self._repo.savecommitmessage(self._text)
 
     def filectx(self, path, filelog=None):
         """get a file context from the working directory
 
         Returns None if file doesn't exist and should be removed."""
         return self._filectxfn(self._repo, self, path)
 
     def commit(self):
         """commit context to the repo"""
         return self._repo.commitctx(self)
 
     @propertycache
     def _manifest(self):
         """generate a manifest based on the return values of filectxfn"""
 
         # keep this simple for now; just worry about p1
         pctx = self._parents[0]
         pman = pctx.manifest()
         man = pctx.manifest().copy()
 
         for f, fnode in pman.iteritems():
             p1node = nullid
             p2node = nullid
             p = pctx[f].parents() # if file isn't in pctx, check p2?
             if len(p) > 0:
                 p1node = p[0].node()
                 if len(p) > 1:
                     p2node = p[1].node()
             fctx = self[f]
             if fctx is None:
                 # removed file
                 del man[f]
             else:
                 man[f] = revlog.hash(fctx.data(), p1node, p2node)
 
         return man
 
+    @propertycache
+    def _status(self):
+        """Calculate exact status from ``files`` specified at construction
+        """
+        man1 = self.p1().manifest()
+        p2 = self._parents[1]
+        # "1 < len(self._parents)" can't be used for checking
+        # existence of the 2nd parent, because "memctx._parents" is
+        # explicitly initialized by the list, of which length is 2.
+        if p2.node() != nullid:
+            man2 = p2.manifest()
+            managing = lambda f: f in man1 or f in man2
+        else:
+            managing = lambda f: f in man1
+
+        modified, added, removed = [], [], []
+        for f in self._files:
+            if not managing(f):
+                added.append(f)
+            elif self[f]:
+                modified.append(f)
+            else:
+                removed.append(f)
+
+        return scmutil.status(modified, added, removed, [], [], [], [])
 
 class memfilectx(committablefilectx):
     """memfilectx represents an in-memory file to commit.
 
     See memctx and committablefilectx for more details.
     """
     def __init__(self, repo, path, data, islink=False,
                  isexec=False, copied=None, memctx=None):
         """
         path is the normalized file path relative to repository root.
         data is the file content as a string.
         islink is True if the file is a symbolic link.
         isexec is True if the file is executable.
         copied is the source file path if current file was copied in the
         revision being committed, or None."""
         super(memfilectx, self).__init__(repo, path, None, memctx)
         self._data = data
         self._flags = (islink and 'l' or '') + (isexec and 'x' or '')
         self._copied = None
         if copied:
             self._copied = (copied, nullid)
 
     def data(self):
         return self._data
     def size(self):
         return len(self.data())
     def flags(self):
         return self._flags
     def renamed(self):
         return self._copied
 
     def remove(self, ignoremissing=False):
         """wraps unlink for a repo's working directory"""
         # need to figure out what to do here
         del self._changectx[self._path]
 
     def write(self, data, flags):
         """wraps repo.wwrite"""
         self._data = data

tests/test-commit-amend.t

@@ -1,914 +1,916
   $ hg init
 
 Setup:
 
   $ echo a >> a
   $ hg ci -Am 'base'
   adding a
 
 Refuse to amend public csets:
 
   $ hg phase -r . -p
   $ hg ci --amend
   abort: cannot amend public changesets
   [255]
   $ hg phase -r . -f -d
 
   $ echo a >> a
   $ hg ci -Am 'base1'
 
 Nothing to amend:
 
   $ hg ci --amend
   nothing changed
   [1]
 
   $ cat >> $HGRCPATH <<EOF
   > [hooks]
   > pretxncommit.foo = sh -c "echo \\"pretxncommit \$HG_NODE\\"; hg id -r \$HG_NODE"
   > EOF
 
 Amending changeset with changes in working dir:
 (and check that --message does not trigger an editor)
 
   $ echo a >> a
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend -m 'amend base1'
   pretxncommit 43f1ba15f28a50abf0aae529cf8a16bfced7b149
   43f1ba15f28a tip
   saved backup bundle to $TESTTMP/.hg/strip-backup/489edb5b847d-amend-backup.hg (glob)
   $ echo 'pretxncommit.foo = ' >> $HGRCPATH
   $ hg diff -c .
   diff -r ad120869acf0 -r 43f1ba15f28a a
   --- a/a	Thu Jan 01 00:00:00 1970 +0000
   +++ b/a	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,3 @@
    a
   +a
   +a
   $ hg log
   changeset:   1:43f1ba15f28a
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     amend base1
   
   changeset:   0:ad120869acf0
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     base
   
 
 Check proper abort for empty message
 
   $ cat > editor.sh << '__EOF__'
   > #!/bin/sh
   > echo "" > "$1"
   > __EOF__
   $ echo b > b
   $ hg add b
   $ hg summary
   parent: 1:43f1ba15f28a tip
    amend base1
   branch: default
   commit: 1 added, 1 unknown
   update: (current)
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend
   transaction abort!
   rollback completed
   abort: empty commit message
   [255]
   $ hg summary
   parent: 1:43f1ba15f28a tip
    amend base1
   branch: default
   commit: 1 added, 1 unknown
   update: (current)
 
 Add new file:
   $ hg ci --amend -m 'amend base1 new file'
   saved backup bundle to $TESTTMP/.hg/strip-backup/43f1ba15f28a-amend-backup.hg (glob)
 
 Remove file that was added in amended commit:
 (and test logfile option)
 (and test that logfile option do not trigger an editor)
 
   $ hg rm b
   $ echo 'amend base1 remove new file' > ../logfile
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg ci --amend --logfile ../logfile
   saved backup bundle to $TESTTMP/.hg/strip-backup/b8e3cb2b3882-amend-backup.hg (glob)
 
   $ hg cat b
   b: no such file in rev 74609c7f506e
   [1]
 
 No changes, just a different message:
 
   $ hg ci -v --amend -m 'no changes, new message'
   amending changeset 74609c7f506e
   copying changeset 74609c7f506e to ad120869acf0
   a
   stripping amended changeset 74609c7f506e
   1 changesets found
   saved backup bundle to $TESTTMP/.hg/strip-backup/74609c7f506e-amend-backup.hg (glob)
   1 changesets found
   adding branch
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   committed changeset 1:1cd866679df8
   $ hg diff -c .
   diff -r ad120869acf0 -r 1cd866679df8 a
   --- a/a	Thu Jan 01 00:00:00 1970 +0000
   +++ b/a	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,3 @@
    a
   +a
   +a
   $ hg log
   changeset:   1:1cd866679df8
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     no changes, new message
   
   changeset:   0:ad120869acf0
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     base
   
 
 Disable default date on commit so when -d isn't given, the old date is preserved:
 
   $ echo '[defaults]' >> $HGRCPATH
   $ echo 'commit=' >> $HGRCPATH
 
 Test -u/-d:
 
   $ cat > .hg/checkeditform.sh <<EOF
   > env | grep HGEDITFORM
   > true
   > EOF
   $ HGEDITOR="sh .hg/checkeditform.sh" hg ci --amend -u foo -d '1 0'
   HGEDITFORM=commit.amend.normal
   saved backup bundle to $TESTTMP/.hg/strip-backup/1cd866679df8-amend-backup.hg (glob)
   $ echo a >> a
   $ hg ci --amend -u foo -d '1 0'
   saved backup bundle to $TESTTMP/.hg/strip-backup/780e6f23e03d-amend-backup.hg (glob)
   $ hg log -r .
   changeset:   1:5f357c7560ab
   tag:         tip
   user:        foo
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     no changes, new message
   
 
 Open editor with old commit message if a message isn't given otherwise:
 
   $ cat > editor.sh << '__EOF__'
   > #!/bin/sh
   > cat $1
   > echo "another precious commit message" > "$1"
   > __EOF__
 
 at first, test saving last-message.txt
 
   $ cat > .hg/hgrc << '__EOF__'
   > [hooks]
   > pretxncommit.test-saving-last-message = false
   > __EOF__
 
   $ rm -f .hg/last-message.txt
   $ hg commit --amend -v -m "message given from command line"
   amending changeset 5f357c7560ab
   copying changeset 5f357c7560ab to ad120869acf0
   a
   running hook pretxncommit.test-saving-last-message: false
   transaction abort!
   rollback completed
   abort: pretxncommit.test-saving-last-message hook exited with status 1
   [255]
   $ cat .hg/last-message.txt
   message given from command line (no-eol)
 
   $ rm -f .hg/last-message.txt
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend -v
   amending changeset 5f357c7560ab
   copying changeset 5f357c7560ab to ad120869acf0
   no changes, new message
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: foo
   HG: branch 'default'
   HG: changed a
   a
   running hook pretxncommit.test-saving-last-message: false
   transaction abort!
   rollback completed
   abort: pretxncommit.test-saving-last-message hook exited with status 1
   [255]
 
   $ cat .hg/last-message.txt
   another precious commit message
 
   $ cat > .hg/hgrc << '__EOF__'
   > [hooks]
   > pretxncommit.test-saving-last-message =
   > __EOF__
 
 then, test editing custom commit message
 
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend -v
   amending changeset 5f357c7560ab
   copying changeset 5f357c7560ab to ad120869acf0
   no changes, new message
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: foo
   HG: branch 'default'
   HG: changed a
   a
   stripping amended changeset 5f357c7560ab
   1 changesets found
   saved backup bundle to $TESTTMP/.hg/strip-backup/5f357c7560ab-amend-backup.hg (glob)
   1 changesets found
   adding branch
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   committed changeset 1:7ab3bf440b54
 
 Same, but with changes in working dir (different code path):
 
   $ echo a >> a
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend -v
   amending changeset 7ab3bf440b54
   a
   copying changeset a0ea9b1a4c8c to ad120869acf0
   another precious commit message
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: foo
   HG: branch 'default'
   HG: changed a
   a
   stripping intermediate changeset a0ea9b1a4c8c
   stripping amended changeset 7ab3bf440b54
   2 changesets found
   saved backup bundle to $TESTTMP/.hg/strip-backup/7ab3bf440b54-amend-backup.hg (glob)
   1 changesets found
   adding branch
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   committed changeset 1:ea22a388757c
 
   $ rm editor.sh
   $ hg log -r .
   changeset:   1:ea22a388757c
   tag:         tip
   user:        foo
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     another precious commit message
   
 
 Moving bookmarks, preserve active bookmark:
 
   $ hg book book1
   $ hg book book2
   $ hg ci --amend -m 'move bookmarks'
   saved backup bundle to $TESTTMP/.hg/strip-backup/ea22a388757c-amend-backup.hg (glob)
   $ hg book
      book1                     1:6cec5aa930e2
    * book2                     1:6cec5aa930e2
   $ echo a >> a
   $ hg ci --amend -m 'move bookmarks'
   saved backup bundle to $TESTTMP/.hg/strip-backup/6cec5aa930e2-amend-backup.hg (glob)
   $ hg book
      book1                     1:48bb6e53a15f
    * book2                     1:48bb6e53a15f
 
 abort does not loose bookmarks
 
   $ cat > editor.sh << '__EOF__'
   > #!/bin/sh
   > echo "" > "$1"
   > __EOF__
   $ echo a >> a
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit --amend
   transaction abort!
   rollback completed
   abort: empty commit message
   [255]
   $ hg book
      book1                     1:48bb6e53a15f
    * book2                     1:48bb6e53a15f
   $ hg revert -Caq
   $ rm editor.sh
 
   $ echo '[defaults]' >> $HGRCPATH
   $ echo "commit=-d '0 0'" >> $HGRCPATH
 
 Moving branches:
 
   $ hg branch foo
   marked working directory as branch foo
   (branches are permanent and global, did you want a bookmark?)
   $ echo a >> a
   $ hg ci -m 'branch foo'
   $ hg branch default -f
   marked working directory as branch default
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci --amend -m 'back to default'
   saved backup bundle to $TESTTMP/.hg/strip-backup/8ac881fbf49d-amend-backup.hg (glob)
   $ hg branches
   default                        2:ce12b0b57d46
 
 Close branch:
 
   $ hg up -q 0
   $ echo b >> b
   $ hg branch foo
   marked working directory as branch foo
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci -Am 'fork'
   adding b
   $ echo b >> b
   $ hg ci -mb
   $ hg ci --amend --close-branch -m 'closing branch foo'
   saved backup bundle to $TESTTMP/.hg/strip-backup/c962248fa264-amend-backup.hg (glob)
 
 Same thing, different code path:
 
   $ echo b >> b
   $ hg ci -m 'reopen branch'
   reopening closed branch head 4
   $ echo b >> b
   $ hg ci --amend --close-branch
   saved backup bundle to $TESTTMP/.hg/strip-backup/027371728205-amend-backup.hg (glob)
   $ hg branches
   default                        2:ce12b0b57d46
 
 Refuse to amend during a merge:
 
   $ hg up -q default
   $ hg merge foo
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci --amend
   abort: cannot amend while merging
   [255]
   $ hg ci -m 'merge'
 
 Follow copies/renames:
 
   $ hg mv b c
   $ hg ci -m 'b -> c'
   $ hg mv c d
   $ hg ci --amend -m 'b -> d'
   saved backup bundle to $TESTTMP/.hg/strip-backup/b8c6eac7f12e-amend-backup.hg (glob)
   $ hg st --rev '.^' --copies d
   A d
     b
   $ hg cp d e
   $ hg ci -m 'e = d'
   $ hg cp e f
   $ hg ci --amend -m 'f = d'
   saved backup bundle to $TESTTMP/.hg/strip-backup/7f9761d65613-amend-backup.hg (glob)
   $ hg st --rev '.^' --copies f
   A f
     d
 
   $ mv f f.orig
   $ hg rm -A f
   $ hg ci -m removef
   $ hg cp a f
   $ mv f.orig f
   $ hg ci --amend -m replacef
   saved backup bundle to $TESTTMP/.hg/strip-backup/9e8c5f7e3d95-amend-backup.hg (glob)
   $ hg st --change . --copies
   $ hg log -r . --template "{file_copies}\n"
   
 
 Move added file (issue3410):
 
   $ echo g >> g
   $ hg ci -Am g
   adding g
   $ hg mv g h
   $ hg ci --amend
   saved backup bundle to $TESTTMP/.hg/strip-backup/24aa8eacce2b-amend-backup.hg (glob)
   $ hg st --change . --copies h
   A h
   $ hg log -r . --template "{file_copies}\n"
   
 
 Can't rollback an amend:
 
   $ hg rollback
   no rollback information available
   [1]
 
 Preserve extra dict (issue3430):
 
   $ hg branch a
   marked working directory as branch a
   (branches are permanent and global, did you want a bookmark?)
   $ echo a >> a
   $ hg ci -ma
   $ hg ci --amend -m "a'"
   saved backup bundle to $TESTTMP/.hg/strip-backup/3837aa2a2fdb-amend-backup.hg (glob)
   $ hg log -r . --template "{branch}\n"
   a
   $ hg ci --amend -m "a''"
   saved backup bundle to $TESTTMP/.hg/strip-backup/c05c06be7514-amend-backup.hg (glob)
   $ hg log -r . --template "{branch}\n"
   a
 
 Also preserve other entries in the dict that are in the old commit,
 first graft something so there's an additional entry:
 
   $ hg up 0 -q
   $ echo z > z
   $ hg ci -Am 'fork'
   adding z
   created new head
   $ hg up 11
   5 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg graft 12
   grafting 12:2647734878ef "fork" (tip)
   $ hg ci --amend -m 'graft amend'
   saved backup bundle to $TESTTMP/.hg/strip-backup/bd010aea3f39-amend-backup.hg (glob)
   $ hg log -r . --debug | grep extra
   extra:       amend_source=bd010aea3f39f3fb2a2f884b9ccb0471cd77398e
   extra:       branch=a
   extra:       source=2647734878ef0236dda712fae9c1651cf694ea8a
 
 Preserve phase
 
   $ hg phase '.^::.'
   11: draft
   13: draft
   $ hg phase --secret --force .
   $ hg phase '.^::.'
   11: draft
   13: secret
   $ hg commit --amend -m 'amend for phase' -q
   $ hg phase '.^::.'
   11: draft
   13: secret
 
 Test amend with obsolete
 ---------------------------
 
 Enable obsolete
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
   > evolution=createmarkers,allowunstable
   > EOF
 
 Amend with no files changes
 
   $ hg id -n
   13
   $ hg ci --amend -m 'babar'
   $ hg id -n
   14
   $ hg log -Gl 3 --style=compact
   @  14[tip]:11   b650e6ee8614   1970-01-01 00:00 +0000   test
   |    babar
   |
   | o  12:0   2647734878ef   1970-01-01 00:00 +0000   test
   | |    fork
   | |
   o |  11   3334b7925910   1970-01-01 00:00 +0000   test
   | |    a''
   | |
   $ hg log -Gl 4 --hidden --style=compact
   @  14[tip]:11   b650e6ee8614   1970-01-01 00:00 +0000   test
   |    babar
   |
   | x  13:11   68ff8ff97044   1970-01-01 00:00 +0000   test
   |/     amend for phase
   |
   | o  12:0   2647734878ef   1970-01-01 00:00 +0000   test
   | |    fork
   | |
   o |  11   3334b7925910   1970-01-01 00:00 +0000   test
   | |    a''
   | |
 
 Amend with files changes
 
 (note: the extra commit over 15 is a temporary junk I would be happy to get
 ride of)
 
   $ echo 'babar' >> a
   $ hg commit --amend
   $ hg log -Gl 6 --hidden --style=compact
   @  16[tip]:11   9f9e9bccf56c   1970-01-01 00:00 +0000   test
   |    babar
   |
   | x  15   90fef497c56f   1970-01-01 00:00 +0000   test
   | |    temporary amend commit for b650e6ee8614
   | |
   | x  14:11   b650e6ee8614   1970-01-01 00:00 +0000   test
   |/     babar
   |
   | x  13:11   68ff8ff97044   1970-01-01 00:00 +0000   test
   |/     amend for phase
   |
   | o  12:0   2647734878ef   1970-01-01 00:00 +0000   test
   | |    fork
   | |
   o |  11   3334b7925910   1970-01-01 00:00 +0000   test
   | |    a''
   | |
 
 
 Test that amend does not make it easy to create obsolescence cycle
 ---------------------------------------------------------------------
 
   $ hg id -r 14 --hidden
   b650e6ee8614 (a)
   $ hg revert -ar 14 --hidden
   reverting a
   $ hg commit --amend
   $ hg id
   b99e5df575f7 (a) tip
 
 Test that rewriting leaving instability behind is allowed
 ---------------------------------------------------------------------
 
   $ hg up '.^'
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo 'b' >> a
   $ hg log --style compact -r 'children(.)'
   18[tip]:11   b99e5df575f7   1970-01-01 00:00 +0000   test
     babar
   
   $ hg commit --amend
   $ hg log -r 'unstable()'
   changeset:   18:b99e5df575f7
   branch:      a
   parent:      11:3334b7925910
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     babar
   
 
 Amend a merge changeset (with renames and conflicts from the second parent):
 
   $ hg up -q default
   $ hg branch -q bar
   $ hg cp a aa
   $ hg mv z zz
   $ echo cc > cc
   $ hg add cc
   $ hg ci -m aazzcc
   $ hg up -q default
   $ echo a >> a
   $ echo dd > cc
   $ hg add cc
   $ hg ci -m aa
   $ hg merge -q bar
   warning: conflicts during merge.
   merging cc incomplete! (edit conflicts, then use 'hg resolve --mark')
   [1]
   $ hg resolve -m cc
   (no more unresolved files)
   $ hg ci -m 'merge bar'
   $ hg log --config diff.git=1 -pr .
   changeset:   23:93cd4445f720
   tag:         tip
   parent:      22:30d96aeaf27b
   parent:      21:1aa437659d19
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar
   
   diff --git a/a b/aa
   copy from a
   copy to aa
   diff --git a/cc b/cc
   --- a/cc
   +++ b/cc
   @@ -1,1 +1,5 @@
   +<<<<<<< local: 30d96aeaf27b - test: aa
    dd
   +=======
   +cc
   +>>>>>>> other: 1aa437659d19  bar - test: aazzcc
   diff --git a/z b/zz
   rename from z
   rename to zz
   
   $ hg debugrename aa
   aa renamed from a:a80d06849b333b8a3d5c445f8ba3142010dcdc9e
   $ hg debugrename zz
   zz renamed from z:69a1b67522704ec122181c0890bd16e9d3e7516a
   $ hg debugrename cc
   cc not renamed
   $ HGEDITOR="sh .hg/checkeditform.sh" hg ci --amend -m 'merge bar (amend message)' --edit
   HGEDITFORM=commit.amend.merge
   $ hg log --config diff.git=1 -pr .
   changeset:   24:832b50f2c271
   tag:         tip
   parent:      22:30d96aeaf27b
   parent:      21:1aa437659d19
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar (amend message)
   
   diff --git a/a b/aa
   copy from a
   copy to aa
   diff --git a/cc b/cc
   --- a/cc
   +++ b/cc
   @@ -1,1 +1,5 @@
   +<<<<<<< local: 30d96aeaf27b - test: aa
    dd
   +=======
   +cc
   +>>>>>>> other: 1aa437659d19  bar - test: aazzcc
   diff --git a/z b/zz
   rename from z
   rename to zz
   
   $ hg debugrename aa
   aa renamed from a:a80d06849b333b8a3d5c445f8ba3142010dcdc9e
   $ hg debugrename zz
   zz renamed from z:69a1b67522704ec122181c0890bd16e9d3e7516a
   $ hg debugrename cc
   cc not renamed
   $ hg mv zz z
   $ hg ci --amend -m 'merge bar (undo rename)'
   $ hg log --config diff.git=1 -pr .
   changeset:   26:bdafc5c72f74
   tag:         tip
   parent:      22:30d96aeaf27b
   parent:      21:1aa437659d19
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar (undo rename)
   
   diff --git a/a b/aa
   copy from a
   copy to aa
   diff --git a/cc b/cc
   --- a/cc
   +++ b/cc
   @@ -1,1 +1,5 @@
   +<<<<<<< local: 30d96aeaf27b - test: aa
    dd
   +=======
   +cc
   +>>>>>>> other: 1aa437659d19  bar - test: aazzcc
   
   $ hg debugrename z
   z not renamed
 
 Amend a merge changeset (with renames during the merge):
 
   $ hg up -q bar
   $ echo x > x
   $ hg add x
   $ hg ci -m x
   $ hg up -q default
   $ hg merge -q bar
   $ hg mv aa aaa
   $ echo aa >> aaa
   $ hg ci -m 'merge bar again'
   $ hg log --config diff.git=1 -pr .
   changeset:   28:32f19415b634
   tag:         tip
   parent:      26:bdafc5c72f74
   parent:      27:4c94d5bc65f5
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar again
   
   diff --git a/aa b/aa
   deleted file mode 100644
   --- a/aa
   +++ /dev/null
   @@ -1,2 +0,0 @@
   -a
   -a
   diff --git a/aaa b/aaa
   new file mode 100644
   --- /dev/null
   +++ b/aaa
   @@ -0,0 +1,3 @@
   +a
   +a
   +aa
   diff --git a/x b/x
   new file mode 100644
   --- /dev/null
   +++ b/x
   @@ -0,0 +1,1 @@
   +x
   
   $ hg debugrename aaa
   aaa renamed from aa:37d9b5d994eab34eda9c16b195ace52c7b129980
   $ hg mv aaa aa
   $ hg ci --amend -m 'merge bar again (undo rename)'
   $ hg log --config diff.git=1 -pr .
   changeset:   30:1e2a06b3d312
   tag:         tip
   parent:      26:bdafc5c72f74
   parent:      27:4c94d5bc65f5
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar again (undo rename)
   
   diff --git a/aa b/aa
   --- a/aa
   +++ b/aa
   @@ -1,2 +1,3 @@
    a
    a
   +aa
   diff --git a/x b/x
   new file mode 100644
   --- /dev/null
   +++ b/x
   @@ -0,0 +1,1 @@
   +x
   
   $ hg debugrename aa
   aa not renamed
   $ hg debugrename -r '.^' aa
   aa renamed from a:a80d06849b333b8a3d5c445f8ba3142010dcdc9e
 
 Amend a merge changeset (with manifest-level conflicts):
 
   $ hg up -q bar
   $ hg rm aa
   $ hg ci -m 'rm aa'
   $ hg up -q default
   $ echo aa >> aa
   $ hg ci -m aa
   $ hg merge -q bar
   local changed aa which remote deleted
   use (c)hanged version or (d)elete? c
   $ hg ci -m 'merge bar (with conflicts)'
   $ hg log --config diff.git=1 -pr .
   changeset:   33:97a298b0c59f
   tag:         tip
   parent:      32:3d78ce4226b8
   parent:      31:67db8847a540
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar (with conflicts)
   
   
   $ hg rm aa
   $ hg ci --amend -m 'merge bar (with conflicts, amended)'
   $ hg log --config diff.git=1 -pr .
   changeset:   35:6de0c1bde1c8
   tag:         tip
   parent:      32:3d78ce4226b8
   parent:      31:67db8847a540
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge bar (with conflicts, amended)
   
   diff --git a/aa b/aa
   deleted file mode 100644
   --- a/aa
   +++ /dev/null
   @@ -1,4 +0,0 @@
   -a
   -a
   -aa
   -aa
   
 Issue 3445: amending with --close-branch a commit that created a new head should fail
 This shouldn't be possible:
 
   $ hg up -q default
   $ hg branch closewithamend
   marked working directory as branch closewithamend
   (branches are permanent and global, did you want a bookmark?)
   $ touch foo
   $ hg add foo
   $ hg ci -m..
   $ hg ci --amend --close-branch -m 'closing'
   abort: can only close branch heads
   [255]
 
 This silliness fails:
 
   $ hg branch silliness
   marked working directory as branch silliness
   (branches are permanent and global, did you want a bookmark?)
   $ echo b >> b
   $ hg ci --close-branch -m'open and close'
   abort: can only close branch heads
   [255]
 
 Test that amend with --secret creates new secret changeset forcibly
 ---------------------------------------------------------------------
 
   $ hg phase '.^::.'
   35: draft
   36: draft
   $ hg commit --amend --secret -m 'amend as secret' -q
   $ hg phase '.^::.'
   35: draft
   38: secret
 
 Test that amend with --edit invokes editor forcibly
 ---------------------------------------------------
 
   $ hg parents --template "{desc}\n"
   amend as secret
   $ HGEDITOR=cat hg commit --amend -m "editor should be suppressed"
   $ hg parents --template "{desc}\n"
   editor should be suppressed
 
+  $ hg status --rev '.^1::.'
+  A foo
   $ HGEDITOR=cat hg commit --amend -m "editor should be invoked" --edit
   editor should be invoked
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'silliness'
-  HG: changed foo
+  HG: added foo
   $ hg parents --template "{desc}\n"
   editor should be invoked
 
 Check for issue4405
 -------------------
 
 Setup the repo with a file that gets moved in a second commit.
   $ hg init repo
   $ cd repo
   $ touch a0
   $ hg add a0
   $ hg commit -m a0
   $ hg mv a0 a1
   $ hg commit -m a1
   $ hg up -q 0
   $ hg log -G --template '{rev} {desc}'
   o  1 a1
   |
   @  0 a0
   
 
 Now we branch the repro, but re-use the file contents, so we have a divergence
 in the file revlog topology and the changelog topology.
   $ hg revert --rev 1 --all
   removing a0
   adding a1
   $ hg ci -qm 'a1-amend'
   $ hg log -G --template '{rev} {desc}'
   @  2 a1-amend
   |
   | o  1 a1
   |/
   o  0 a0
   
 
 The way mercurial does amends is to create a temporary commit (rev 3) and then
 fold the new and old commits together into another commit (rev 4). During this
 process, _findlimit is called to check how far back to look for the transitive
 closure of file copy information, but due to the divergence of the filelog
 and changelog graph topologies, before _findlimit was fixed, it returned a rev
 which was not far enough back in this case.
   $ hg mv a1 a2
   $ hg status --copies --rev 0
   A a2
     a0
   R a0
   $ hg ci --amend -q
   $ hg log -G --template '{rev} {desc}'
   @  4 a1-amend
   |
   | o  1 a1
   |/
   o  0 a0
   
 
 Before the fix, the copy information was lost.
   $ hg status --copies --rev 0
   A a2
     a0
   R a0

tests/test-convert-svn-encoding.t

@@ -1,133 +1,129
 #require svn svn-bindings
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > convert =
   > EOF
 
   $ svnadmin create svn-repo
   $ svnadmin load -q svn-repo < "$TESTDIR/svn/encoding.svndump"
 
 Convert while testing all possible outputs
 
   $ hg --debug convert svn-repo A-hg
   initializing destination A-hg repository
   reparent to file://*/svn-repo (glob)
   run hg sink pre-conversion action
   scanning source...
   found trunk at 'trunk'
   found tags at 'tags'
   found branches at 'branches'
   found branch branch\xc3\xa9 at 5 (esc)
   found branch branch\xc3\xa9e at 6 (esc)
   scanning: 1/4 revisions (25.00%)
   reparent to file://*/svn-repo/trunk (glob)
   fetching revision log for "/trunk" from 4 to 0
   parsing revision 4 (2 changes)
   parsing revision 3 (4 changes)
   parsing revision 2 (3 changes)
   parsing revision 1 (3 changes)
   no copyfrom path, don't know what to do.
   '/branches' is not under '/trunk', ignoring
   '/tags' is not under '/trunk', ignoring
   scanning: 2/4 revisions (50.00%)
   reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
   fetching revision log for "/branches/branch\xc3\xa9" from 5 to 0 (esc)
   parsing revision 5 (1 changes)
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
   found parent of branch /branches/branch\xc3\xa9 at 4: /trunk (esc)
   scanning: 3/4 revisions (75.00%)
   reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
   fetching revision log for "/branches/branch\xc3\xa9e" from 6 to 0 (esc)
   parsing revision 6 (1 changes)
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
   found parent of branch /branches/branch\xc3\xa9e at 5: /branches/branch\xc3\xa9 (esc)
   scanning: 4/4 revisions (100.00%)
   scanning: 5/4 revisions (125.00%)
   scanning: 6/4 revisions (150.00%)
   sorting...
   converting...
   5 init projA
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@1
   converting: 0/6 revisions (0.00%)
   4 hello
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@2
   converting: 1/6 revisions (16.67%)
   reparent to file://*/svn-repo/trunk (glob)
   scanning paths: /trunk/\xc3\xa0 0/3 (0.00%) (esc)
   scanning paths: /trunk/\xc3\xa0/e\xcc\x81 1/3 (33.33%) (esc)
   scanning paths: /trunk/\xc3\xa9 2/3 (66.67%) (esc)
   \xc3\xa0/e\xcc\x81 (esc)
   getting files: \xc3\xa0/e\xcc\x81 1/2 (50.00%) (esc)
   \xc3\xa9 (esc)
   getting files: \xc3\xa9 2/2 (100.00%) (esc)
   3 copy files
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@3
   converting: 2/6 revisions (33.33%)
   scanning paths: /trunk/\xc3\xa0 0/4 (0.00%) (esc)
   gone from -1
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/trunk (glob)
   scanning paths: /trunk/\xc3\xa8 1/4 (25.00%) (esc)
   copied to \xc3\xa8 from \xc3\xa9@2 (esc)
   scanning paths: /trunk/\xc3\xa9 2/4 (50.00%) (esc)
   gone from -1
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/trunk (glob)
   scanning paths: /trunk/\xc3\xb9 3/4 (75.00%) (esc)
   mark /trunk/\xc3\xb9 came from \xc3\xa0:2 (esc)
-  \xc3\xa0/e\xcc\x81 (esc)
   getting files: \xc3\xa0/e\xcc\x81 1/4 (25.00%) (esc)
+  getting files: \xc3\xa9 2/4 (50.00%) (esc)
   \xc3\xa8 (esc)
-  getting files: \xc3\xa8 2/4 (50.00%) (esc)
+  getting files: \xc3\xa8 3/4 (75.00%) (esc)
    \xc3\xa8: copy \xc3\xa9:6b67ccefd5ce6de77e7ead4f5292843a0255329f (esc)
-  \xc3\xa9 (esc)
-  getting files: \xc3\xa9 3/4 (75.00%) (esc)
   \xc3\xb9/e\xcc\x81 (esc)
   getting files: \xc3\xb9/e\xcc\x81 4/4 (100.00%) (esc)
    \xc3\xb9/e\xcc\x81: copy \xc3\xa0/e\xcc\x81:a9092a3d84a37b9993b5c73576f6de29b7ea50f6 (esc)
   2 remove files
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@4
   converting: 3/6 revisions (50.00%)
   scanning paths: /trunk/\xc3\xa8 0/2 (0.00%) (esc)
   gone from -1
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/trunk (glob)
   scanning paths: /trunk/\xc3\xb9 1/2 (50.00%) (esc)
   gone from -1
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/trunk (glob)
-  \xc3\xa8 (esc)
   getting files: \xc3\xa8 1/2 (50.00%) (esc)
-  \xc3\xb9/e\xcc\x81 (esc)
   getting files: \xc3\xb9/e\xcc\x81 2/2 (100.00%) (esc)
   1 branch to branch?
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/branches/branch?@5
   converting: 4/6 revisions (66.67%)
   reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
   scanning paths: /branches/branch\xc3\xa9 0/1 (0.00%) (esc)
   0 branch to branch?e
   source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/branches/branch?e@6
   converting: 5/6 revisions (83.33%)
   reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
   scanning paths: /branches/branch\xc3\xa9e 0/1 (0.00%) (esc)
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
   reparent to file://*/svn-repo (glob)
   reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
   updating tags
   .hgtags
   run hg sink post-conversion action
   $ cd A-hg
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Check tags are in UTF-8
 
   $ cat .hgtags
   e94e4422020e715add80525e8f0f46c9968689f1 branch\xc3\xa9e (esc)
   f7e66f98380ed1e53a797c5c7a7a2616a7ab377d branch\xc3\xa9 (esc)
 
   $ cd ..

tests/test-histedit-fold.t

@@ -1,497 +1,503
 Test histedit extension: Fold commands
 ======================================
 
 This test file is dedicated to testing the fold command in non conflicting
 case.
 
 Initialization
 ---------------
 
 
   $ . "$TESTDIR/histedit-helpers.sh"
 
   $ cat >> $HGRCPATH <<EOF
   > [alias]
   > logt = log --template '{rev}:{node|short} {desc|firstline}\n'
   > [extensions]
   > histedit=
   > EOF
 
 
 Simple folding
 --------------------
   $ initrepo ()
   > {
   >     hg init r
   >     cd r
   >     for x in a b c d e f ; do
   >         echo $x > $x
   >         hg add $x
   >         hg ci -m $x
   >     done
   > }
 
   $ initrepo
 
 log before edit
   $ hg logt --graph
   @  5:652413bf663e f
   |
   o  4:e860deea161a e
   |
   o  3:055a42cdd887 d
   |
   o  2:177f92b77385 c
   |
   o  1:d2ae7f538514 b
   |
   o  0:cb9a9f314b8b a
   
 
   $ hg histedit 177f92b77385 --commands - 2>&1 <<EOF | fixbundle
   > pick e860deea161a e
   > pick 652413bf663e f
   > fold 177f92b77385 c
   > pick 055a42cdd887 d
   > EOF
   0 files updated, 0 files merged, 4 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 log after edit
   $ hg logt --graph
   @  4:9c277da72c9b d
   |
   o  3:6de59d13424a f
   |
   o  2:ee283cb5f2d5 e
   |
   o  1:d2ae7f538514 b
   |
   o  0:cb9a9f314b8b a
   
 
 post-fold manifest
   $ hg manifest
   a
   b
   c
   d
   e
   f
 
 
 check histedit_source
 
   $ hg log --debug --rev 3
   changeset:   3:6de59d13424a8a13acd3e975514aed29dd0d9b2d
   phase:       draft
   parent:      2:ee283cb5f2d5955443f23a27b697a04339e9a39a
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    3:81eede616954057198ead0b2c73b41d1f392829a
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files+:      c f
   extra:       branch=default
   extra:       histedit_source=a4f7421b80f79fcc59fff01bcbf4a53d127dd6d3,177f92b773850b59254aa5e923436f921b55483b
   description:
   f
   ***
   c
   
   
 
 rollup will fold without preserving the folded commit's message
 
   $ hg histedit d2ae7f538514 --commands - 2>&1 <<EOF | fixbundle
   > pick d2ae7f538514 b
   > roll ee283cb5f2d5 e
   > pick 6de59d13424a f
   > pick 9c277da72c9b d
   > EOF
   0 files updated, 0 files merged, 4 files removed, 0 files unresolved
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 log after edit
   $ hg logt --graph
   @  3:c4a9eb7989fc d
   |
   o  2:8e03a72b6f83 f
   |
   o  1:391ee782c689 b
   |
   o  0:cb9a9f314b8b a
   
 
 description is taken from rollup target commit
 
   $ hg log --debug --rev 1
   changeset:   1:391ee782c68930be438ccf4c6a403daedbfbffa5
   phase:       draft
   parent:      0:cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b
   parent:      -1:0000000000000000000000000000000000000000
   manifest:    1:b5e112a3a8354e269b1524729f0918662d847c38
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files+:      b e
   extra:       branch=default
   extra:       histedit_source=d2ae7f538514cd87c17547b0de4cea71fe1af9fb,ee283cb5f2d5955443f23a27b697a04339e9a39a
   description:
   b
   
   
 
 check saving last-message.txt
 
   $ cat > $TESTTMP/abortfolding.py <<EOF
   > from mercurial import util
   > def abortfolding(ui, repo, hooktype, **kwargs):
   >     ctx = repo[kwargs.get('node')]
   >     if set(ctx.files()) == set(['c', 'd', 'f']):
   >         return True # abort folding commit only
   >     ui.warn('allow non-folding commit\\n')
   > EOF
   $ cat > .hg/hgrc <<EOF
   > [hooks]
   > pretxncommit.abortfolding = python:$TESTTMP/abortfolding.py:abortfolding
   > EOF
 
   $ cat > $TESTTMP/editor.sh << EOF
   > echo "==== before editing"
   > cat \$1
   > echo "===="
   > echo "check saving last-message.txt" >> \$1
   > EOF
 
   $ rm -f .hg/last-message.txt
-  $ HGEDITOR="sh $TESTTMP/editor.sh" hg histedit 8e03a72b6f83 --commands - 2>&1 <<EOF | fixbundle
+  $ hg status --rev '8e03a72b6f83^1::c4a9eb7989fc'
+  A c
+  A d
+  A f
+  $ HGEDITOR="sh $TESTTMP/editor.sh" hg histedit 8e03a72b6f83 --commands - 2>&1 <<EOF
   > pick 8e03a72b6f83 f
   > fold c4a9eb7989fc d
   > EOF
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  adding d
   allow non-folding commit
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
   ==== before editing
   f
   ***
   c
   ***
   d
   
   
   
   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 c
-  HG: changed d
-  HG: changed f
+  HG: added c
+  HG: added d
+  HG: added f
   ====
   transaction abort!
   rollback completed
   abort: pretxncommit.abortfolding hook failed
+  [255]
 
   $ cat .hg/last-message.txt
   f
   ***
   c
   ***
   d
   
   
   
   check saving last-message.txt
 
   $ cd ..
   $ rm -r r
 
 folding preserves initial author
 --------------------------------
 
   $ initrepo
 
   $ hg ci --user "someone else" --amend --quiet
 
 tip before edit
   $ hg log --rev .
   changeset:   5:a00ad806cb55
   tag:         tip
   user:        someone else
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     f
   
 
   $ hg histedit e860deea161a --commands - 2>&1 <<EOF | fixbundle
   > pick e860deea161a e
   > fold a00ad806cb55 f
   > EOF
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 tip after edit
   $ hg log --rev .
   changeset:   4:698d4e8040a1
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     e
   
 
   $ cd ..
   $ rm -r r
 
 folding and creating no new change doesn't break:
 -------------------------------------------------
 
 folded content is dropped during a merge. The folded commit should properly disappear.
 
   $ mkdir fold-to-empty-test
   $ cd fold-to-empty-test
   $ hg init
   $ printf "1\n2\n3\n" > file
   $ hg add file
   $ hg commit -m '1+2+3'
   $ echo 4 >> file
   $ hg commit -m '+4'
   $ echo 5 >> file
   $ hg commit -m '+5'
   $ echo 6 >> file
   $ hg commit -m '+6'
   $ hg logt --graph
   @  3:251d831eeec5 +6
   |
   o  2:888f9082bf99 +5
   |
   o  1:617f94f13c0f +4
   |
   o  0:0189ba417d34 1+2+3
   
 
   $ hg histedit 1 --commands - << EOF
   > pick 617f94f13c0f 1 +4
   > drop 888f9082bf99 2 +5
   > fold 251d831eeec5 3 +6
   > EOF
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   merging file
   warning: conflicts during merge.
   merging file incomplete! (edit conflicts, then use 'hg resolve --mark')
   Fix up the change and run hg histedit --continue
   [1]
 There were conflicts, we keep P1 content. This
 should effectively drop the changes from +6.
   $ hg status
   M file
   ? file.orig
   $ hg resolve -l
   U file
   $ hg revert -r 'p1()' file
   $ hg resolve --mark file
   (no more unresolved files)
   $ hg histedit --continue
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/*-backup.hg (glob)
   $ hg logt --graph
   @  1:617f94f13c0f +4
   |
   o  0:0189ba417d34 1+2+3
   
 
   $ cd ..
 
 
 Test fold through dropped
 -------------------------
 
 
 Test corner case where folded revision is separated from its parent by a
 dropped revision.
 
 
   $ hg init fold-with-dropped
   $ cd fold-with-dropped
   $ printf "1\n2\n3\n" > file
   $ hg commit -Am '1+2+3'
   adding file
   $ echo 4 >> file
   $ hg commit -m '+4'
   $ echo 5 >> file
   $ hg commit -m '+5'
   $ echo 6 >> file
   $ hg commit -m '+6'
   $ hg logt -G
   @  3:251d831eeec5 +6
   |
   o  2:888f9082bf99 +5
   |
   o  1:617f94f13c0f +4
   |
   o  0:0189ba417d34 1+2+3
   
   $ hg histedit 1 --commands -  << EOF
   > pick 617f94f13c0f 1 +4
   > drop 888f9082bf99 2 +5
   > fold 251d831eeec5 3 +6
   > EOF
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   merging file
   warning: conflicts during merge.
   merging file incomplete! (edit conflicts, then use 'hg resolve --mark')
   Fix up the change and run hg histedit --continue
   [1]
   $ cat > file << EOF
   > 1
   > 2
   > 3
   > 4
   > 5
   > EOF
   $ hg resolve --mark file
   (no more unresolved files)
   $ hg commit -m '+5.2'
   created new head
   $ echo 6 >> file
   $ HGEDITOR=cat hg histedit --continue
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   +4
   ***
   +5.2
   ***
   +6
   
   
   
   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 file
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/fold-with-dropped/.hg/strip-backup/617f94f13c0f-backup.hg (glob)
   $ hg logt -G
   @  1:10c647b2cdd5 +4
   |
   o  0:0189ba417d34 1+2+3
   
   $ hg export tip
   # HG changeset patch
   # User test
   # Date 0 0
   #      Thu Jan 01 00:00:00 1970 +0000
   # Node ID 10c647b2cdd54db0603ecb99b2ff5ce66d5a5323
   # Parent  0189ba417d34df9dda55f88b637dcae9917b5964
   +4
   ***
   +5.2
   ***
   +6
   
   diff -r 0189ba417d34 -r 10c647b2cdd5 file
   --- a/file	Thu Jan 01 00:00:00 1970 +0000
   +++ b/file	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,3 +1,6 @@
    1
    2
    3
   +4
   +5
   +6
   $ cd ..
 
 
 Folding with initial rename (issue3729)
 ---------------------------------------
 
   $ hg init fold-rename
   $ cd fold-rename
   $ echo a > a.txt
   $ hg add a.txt
   $ hg commit -m a
   $ hg rename a.txt b.txt
   $ hg commit -m rename
   $ echo b >> b.txt
   $ hg commit -m b
 
   $ hg logt --follow b.txt
   2:e0371e0426bc b
   1:1c4f440a8085 rename
   0:6c795aa153cb a
 
   $ hg histedit 1c4f440a8085 --commands - 2>&1 << EOF | fixbundle
   > pick 1c4f440a8085 rename
   > fold e0371e0426bc b
   > EOF
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   reverting b.txt
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg logt --follow b.txt
   1:cf858d235c76 rename
   0:6c795aa153cb a
 
   $ cd ..
 
 Folding with swapping
 ---------------------
 
 This is an excuse to test hook with histedit temporary commit (issue4422)
 
 
   $ hg init issue4422
   $ cd issue4422
   $ echo a > a.txt
   $ hg add a.txt
   $ hg commit -m a
   $ echo b > b.txt
   $ hg add b.txt
   $ hg commit -m b
   $ echo c > c.txt
   $ hg add c.txt
   $ hg commit -m c
 
   $ hg logt
   2:a1a953ffb4b0 c
   1:199b6bb90248 b
   0:6c795aa153cb a
 
 Setup the proper environment variable symbol for the platform, to be subbed
 into the hook command.
 #if windows
   $ NODE="%HG_NODE%"
 #else
   $ NODE="\$HG_NODE"
 #endif
   $ hg histedit 6c795aa153cb --config hooks.commit="echo commit $NODE" --commands - 2>&1 << EOF | fixbundle
   > pick 199b6bb90248 b
   > fold a1a953ffb4b0 c
   > pick 6c795aa153cb a
   > EOF
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   commit 9599899f62c05f4377548c32bf1c9f1a39634b0c
 
   $ hg logt
   1:9599899f62c0 a
   0:79b99e9c8e49 b
 
   $ cd ..