cmdutil: fix newandmodified file accounting for --interactive commits

`originalchunks` is a misleading name, because it only contains header objects, which are flattened to selected hunks by the filter function. As such, `chunks not in originalchunks` is always True and misleading, because hunk objects never compare equal to header objects. This change fixes the internal naming and removes the useless parameter from the method.

This change also fixes issue6533, by considering the filtered headers, rather than the hunks, when determining new and modified files. If a file is renamed + edited, and the edited hunks are deselected (but the file is not), the filtered chunks will contain a header for the file (because it's .special()) but but no hunks.

Differential Revision: https://phab.mercurial-scm.org/D10936

mercurial/cmdutil.py

@@ -1,3932 +1,3925
 # cmdutil.py - help for command processing in mercurial
 #
 # Copyright 2005-2007 Olivia Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import copy as copymod
 import errno
 import os
 import re
 
 from .i18n import _
 from .node import (
     hex,
     nullrev,
     short,
 )
 from .pycompat import (
     getattr,
     open,
     setattr,
 )
 from .thirdparty import attr
 
 from . import (
     bookmarks,
     changelog,
     copies,
     crecord as crecordmod,
     dirstateguard,
     encoding,
     error,
     formatter,
     logcmdutil,
     match as matchmod,
     merge as mergemod,
     mergestate as mergestatemod,
     mergeutil,
     obsolete,
     patch,
     pathutil,
     phases,
     pycompat,
     repair,
     revlog,
     rewriteutil,
     scmutil,
     state as statemod,
     subrepoutil,
     templatekw,
     templater,
     util,
     vfs as vfsmod,
 )
 
 from .utils import (
     dateutil,
     stringutil,
 )
 
 from .revlogutils import (
     constants as revlog_constants,
 )
 
 if pycompat.TYPE_CHECKING:
     from typing import (
         Any,
         Dict,
     )
 
     for t in (Any, Dict):
         assert t
 
 stringio = util.stringio
 
 # templates of common command options
 
 dryrunopts = [
     (b'n', b'dry-run', None, _(b'do not perform actions, just print output')),
 ]
 
 confirmopts = [
     (b'', b'confirm', None, _(b'ask before applying actions')),
 ]
 
 remoteopts = [
     (b'e', b'ssh', b'', _(b'specify ssh command to use'), _(b'CMD')),
     (
         b'',
         b'remotecmd',
         b'',
         _(b'specify hg command to run on the remote side'),
         _(b'CMD'),
     ),
     (
         b'',
         b'insecure',
         None,
         _(b'do not verify server certificate (ignoring web.cacerts config)'),
     ),
 ]
 
 walkopts = [
     (
         b'I',
         b'include',
         [],
         _(b'include names matching the given patterns'),
         _(b'PATTERN'),
     ),
     (
         b'X',
         b'exclude',
         [],
         _(b'exclude names matching the given patterns'),
         _(b'PATTERN'),
     ),
 ]
 
 commitopts = [
     (b'm', b'message', b'', _(b'use text as commit message'), _(b'TEXT')),
     (b'l', b'logfile', b'', _(b'read commit message from file'), _(b'FILE')),
 ]
 
 commitopts2 = [
     (
         b'd',
         b'date',
         b'',
         _(b'record the specified date as commit date'),
         _(b'DATE'),
     ),
     (
         b'u',
         b'user',
         b'',
         _(b'record the specified user as committer'),
         _(b'USER'),
     ),
 ]
 
 commitopts3 = [
     (b'D', b'currentdate', None, _(b'record the current date as commit date')),
     (b'U', b'currentuser', None, _(b'record the current user as committer')),
 ]
 
 formatteropts = [
     (b'T', b'template', b'', _(b'display with template'), _(b'TEMPLATE')),
 ]
 
 templateopts = [
     (
         b'',
         b'style',
         b'',
         _(b'display using template map file (DEPRECATED)'),
         _(b'STYLE'),
     ),
     (b'T', b'template', b'', _(b'display with template'), _(b'TEMPLATE')),
 ]
 
 logopts = [
     (b'p', b'patch', None, _(b'show patch')),
     (b'g', b'git', None, _(b'use git extended diff format')),
     (b'l', b'limit', b'', _(b'limit number of changes displayed'), _(b'NUM')),
     (b'M', b'no-merges', None, _(b'do not show merges')),
     (b'', b'stat', None, _(b'output diffstat-style summary of changes')),
     (b'G', b'graph', None, _(b"show the revision DAG")),
 ] + templateopts
 
 diffopts = [
     (b'a', b'text', None, _(b'treat all files as text')),
     (
         b'g',
         b'git',
         None,
         _(b'use git extended diff format (DEFAULT: diff.git)'),
     ),
     (b'', b'binary', None, _(b'generate binary diffs in git mode (default)')),
     (b'', b'nodates', None, _(b'omit dates from diff headers')),
 ]
 
 diffwsopts = [
     (
         b'w',
         b'ignore-all-space',
         None,
         _(b'ignore white space when comparing lines'),
     ),
     (
         b'b',
         b'ignore-space-change',
         None,
         _(b'ignore changes in the amount of white space'),
     ),
     (
         b'B',
         b'ignore-blank-lines',
         None,
         _(b'ignore changes whose lines are all blank'),
     ),
     (
         b'Z',
         b'ignore-space-at-eol',
         None,
         _(b'ignore changes in whitespace at EOL'),
     ),
 ]
 
 diffopts2 = (
     [
         (b'', b'noprefix', None, _(b'omit a/ and b/ prefixes from filenames')),
         (
             b'p',
             b'show-function',
             None,
             _(
                 b'show which function each change is in (DEFAULT: diff.showfunc)'
             ),
         ),
         (b'', b'reverse', None, _(b'produce a diff that undoes the changes')),
     ]
     + diffwsopts
     + [
         (
             b'U',
             b'unified',
             b'',
             _(b'number of lines of context to show'),
             _(b'NUM'),
         ),
         (b'', b'stat', None, _(b'output diffstat-style summary of changes')),
         (
             b'',
             b'root',
             b'',
             _(b'produce diffs relative to subdirectory'),
             _(b'DIR'),
         ),
     ]
 )
 
 mergetoolopts = [
     (b't', b'tool', b'', _(b'specify merge tool'), _(b'TOOL')),
 ]
 
 similarityopts = [
     (
         b's',
         b'similarity',
         b'',
         _(b'guess renamed files by similarity (0<=s<=100)'),
         _(b'SIMILARITY'),
     )
 ]
 
 subrepoopts = [(b'S', b'subrepos', None, _(b'recurse into subrepositories'))]
 
 debugrevlogopts = [
     (b'c', b'changelog', False, _(b'open changelog')),
     (b'm', b'manifest', False, _(b'open manifest')),
     (b'', b'dir', b'', _(b'open directory manifest')),
 ]
 
 # special string such that everything below this line will be ingored in the
 # editor text
 _linebelow = b"^HG: ------------------------ >8 ------------------------$"
 
 
 def check_at_most_one_arg(opts, *args):
     """abort if more than one of the arguments are in opts
 
     Returns the unique argument or None if none of them were specified.
     """
 
     def to_display(name):
         return pycompat.sysbytes(name).replace(b'_', b'-')
 
     previous = None
     for x in args:
         if opts.get(x):
             if previous:
                 raise error.InputError(
                     _(b'cannot specify both --%s and --%s')
                     % (to_display(previous), to_display(x))
                 )
             previous = x
     return previous
 
 
 def check_incompatible_arguments(opts, first, others):
     """abort if the first argument is given along with any of the others
 
     Unlike check_at_most_one_arg(), `others` are not mutually exclusive
     among themselves, and they're passed as a single collection.
     """
     for other in others:
         check_at_most_one_arg(opts, first, other)
 
 
 def resolve_commit_options(ui, opts):
     """modify commit options dict to handle related options
 
     The return value indicates that ``rewrite.update-timestamp`` is the reason
     the ``date`` option is set.
     """
     check_at_most_one_arg(opts, 'date', 'currentdate')
     check_at_most_one_arg(opts, 'user', 'currentuser')
 
     datemaydiffer = False  # date-only change should be ignored?
 
     if opts.get('currentdate'):
         opts['date'] = b'%d %d' % dateutil.makedate()
     elif (
         not opts.get('date')
         and ui.configbool(b'rewrite', b'update-timestamp')
         and opts.get('currentdate') is None
     ):
         opts['date'] = b'%d %d' % dateutil.makedate()
         datemaydiffer = True
 
     if opts.get('currentuser'):
         opts['user'] = ui.username()
 
     return datemaydiffer
 
 
 def check_note_size(opts):
     """make sure note is of valid format"""
 
     note = opts.get('note')
     if not note:
         return
 
     if len(note) > 255:
         raise error.InputError(_(b"cannot store a note of more than 255 bytes"))
     if b'\n' in note:
         raise error.InputError(_(b"note cannot contain a newline"))
 
 
 def ishunk(x):
     hunkclasses = (crecordmod.uihunk, patch.recordhunk)
     return isinstance(x, hunkclasses)
 
 
-def newandmodified(chunks, originalchunks):
+def isheader(x):
+    headerclasses = (crecordmod.uiheader, patch.header)
+    return isinstance(x, headerclasses)
+
+
+def newandmodified(chunks):
     newlyaddedandmodifiedfiles = set()
     alsorestore = set()
     for chunk in chunks:
-        if (
-            ishunk(chunk)
-            and chunk.header.isnewfile()
-            and chunk not in originalchunks
-        ):
-            newlyaddedandmodifiedfiles.add(chunk.header.filename())
-            alsorestore.update(
-                set(chunk.header.files()) - {chunk.header.filename()}
-            )
+        if isheader(chunk) and chunk.isnewfile():
+            newlyaddedandmodifiedfiles.add(chunk.filename())
+            alsorestore.update(set(chunk.files()) - {chunk.filename()})
     return newlyaddedandmodifiedfiles, alsorestore
 
 
 def parsealiases(cmd):
     base_aliases = cmd.split(b"|")
     all_aliases = set(base_aliases)
     extra_aliases = []
     for alias in base_aliases:
         if b'-' in alias:
             folded_alias = alias.replace(b'-', b'')
             if folded_alias not in all_aliases:
                 all_aliases.add(folded_alias)
                 extra_aliases.append(folded_alias)
     base_aliases.extend(extra_aliases)
     return base_aliases
 
 
 def setupwrapcolorwrite(ui):
     # wrap ui.write so diff output can be labeled/colorized
     def wrapwrite(orig, *args, **kw):
         label = kw.pop('label', b'')
         for chunk, l in patch.difflabel(lambda: args):
             orig(chunk, label=label + l)
 
     oldwrite = ui.write
 
     def wrap(*args, **kwargs):
         return wrapwrite(oldwrite, *args, **kwargs)
 
     setattr(ui, 'write', wrap)
     return oldwrite
 
 
 def filterchunks(ui, originalhunks, usecurses, testfile, match, operation=None):
     try:
         if usecurses:
             if testfile:
                 recordfn = crecordmod.testdecorator(
                     testfile, crecordmod.testchunkselector
                 )
             else:
                 recordfn = crecordmod.chunkselector
 
             return crecordmod.filterpatch(
                 ui, originalhunks, recordfn, operation
             )
     except crecordmod.fallbackerror as e:
         ui.warn(b'%s\n' % e)
         ui.warn(_(b'falling back to text mode\n'))
 
     return patch.filterpatch(ui, originalhunks, match, operation)
 
 
 def recordfilter(ui, originalhunks, match, operation=None):
     """Prompts the user to filter the originalhunks and return a list of
     selected hunks.
     *operation* is used for to build ui messages to indicate the user what
     kind of filtering they are doing: reverting, committing, shelving, etc.
     (see patch.filterpatch).
     """
     usecurses = crecordmod.checkcurses(ui)
     testfile = ui.config(b'experimental', b'crecordtest')
     oldwrite = setupwrapcolorwrite(ui)
     try:
         newchunks, newopts = filterchunks(
             ui, originalhunks, usecurses, testfile, match, operation
         )
     finally:
         ui.write = oldwrite
     return newchunks, newopts
 
 
 def dorecord(
     ui, repo, commitfunc, cmdsuggest, backupall, filterfn, *pats, **opts
 ):
     opts = pycompat.byteskwargs(opts)
     if not ui.interactive():
         if cmdsuggest:
             msg = _(b'running non-interactively, use %s instead') % cmdsuggest
         else:
             msg = _(b'running non-interactively')
         raise error.InputError(msg)
 
     # make sure username is set before going interactive
     if not opts.get(b'user'):
         ui.username()  # raise exception, username not provided
 
     def recordfunc(ui, repo, message, match, opts):
         """This is generic record driver.
 
         Its job is to interactively filter local changes, and
         accordingly prepare working directory into a state in which the
         job can be delegated to a non-interactive commit command such as
         'commit' or 'qrefresh'.
 
         After the actual job is done by non-interactive command, the
         working directory is restored to its original state.
 
         In the end we'll record interesting changes, and everything else
         will be left in place, so the user can continue working.
         """
         if not opts.get(b'interactive-unshelve'):
             checkunfinished(repo, commit=True)
         wctx = repo[None]
         merge = len(wctx.parents()) > 1
         if merge:
             raise error.InputError(
                 _(
                     b'cannot partially commit a merge '
                     b'(use "hg commit" instead)'
                 )
             )
 
         def fail(f, msg):
             raise error.InputError(b'%s: %s' % (f, msg))
 
         force = opts.get(b'force')
         if not force:
             match = matchmod.badmatch(match, fail)
 
         status = repo.status(match=match)
 
         overrides = {(b'ui', b'commitsubrepos'): True}
 
         with repo.ui.configoverride(overrides, b'record'):
             # subrepoutil.precommit() modifies the status
             tmpstatus = scmutil.status(
                 copymod.copy(status.modified),
                 copymod.copy(status.added),
                 copymod.copy(status.removed),
                 copymod.copy(status.deleted),
                 copymod.copy(status.unknown),
                 copymod.copy(status.ignored),
                 copymod.copy(status.clean),  # pytype: disable=wrong-arg-count
             )
 
             # Force allows -X subrepo to skip the subrepo.
             subs, commitsubs, newstate = subrepoutil.precommit(
                 repo.ui, wctx, tmpstatus, match, force=True
             )
             for s in subs:
                 if s in commitsubs:
                     dirtyreason = wctx.sub(s).dirtyreason(True)
                     raise error.Abort(dirtyreason)
 
         if not force:
             repo.checkcommitpatterns(wctx, match, status, fail)
         diffopts = patch.difffeatureopts(
             ui,
             opts=opts,
             whitespace=True,
             section=b'commands',
             configprefix=b'commit.interactive.',
         )
         diffopts.nodates = True
         diffopts.git = True
         diffopts.showfunc = True
         originaldiff = patch.diff(repo, changes=status, opts=diffopts)
-        originalchunks = patch.parsepatch(originaldiff)
+        original_headers = patch.parsepatch(originaldiff)
         match = scmutil.match(repo[None], pats)
 
         # 1. filter patch, since we are intending to apply subset of it
         try:
-            chunks, newopts = filterfn(ui, originalchunks, match)
+            chunks, newopts = filterfn(ui, original_headers, match)
         except error.PatchError as err:
             raise error.InputError(_(b'error parsing patch: %s') % err)
         opts.update(newopts)
 
         # We need to keep a backup of files that have been newly added and
         # modified during the recording process because there is a previous
         # version without the edit in the workdir. We also will need to restore
         # files that were the sources of renames so that the patch application
         # works.
-        newlyaddedandmodifiedfiles, alsorestore = newandmodified(
-            chunks, originalchunks
-        )
+        newlyaddedandmodifiedfiles, alsorestore = newandmodified(chunks)
         contenders = set()
         for h in chunks:
-            try:
+            if isheader(h):
                 contenders.update(set(h.files()))
-            except AttributeError:
-                pass
 
         changed = status.modified + status.added + status.removed
         newfiles = [f for f in changed if f in contenders]
         if not newfiles:
             ui.status(_(b'no changes to record\n'))
             return 0
 
         modified = set(status.modified)
 
         # 2. backup changed files, so we can restore them in the end
 
         if backupall:
             tobackup = changed
         else:
             tobackup = [
                 f
                 for f in newfiles
                 if f in modified or f in newlyaddedandmodifiedfiles
             ]
         backups = {}
         if tobackup:
             backupdir = repo.vfs.join(b'record-backups')
             try:
                 os.mkdir(backupdir)
             except OSError as err:
                 if err.errno != errno.EEXIST:
                     raise
         try:
             # backup continues
             for f in tobackup:
                 fd, tmpname = pycompat.mkstemp(
                     prefix=os.path.basename(f) + b'.', dir=backupdir
                 )
                 os.close(fd)
                 ui.debug(b'backup %r as %r\n' % (f, tmpname))
                 util.copyfile(repo.wjoin(f), tmpname, copystat=True)
                 backups[f] = tmpname
 
             fp = stringio()
             for c in chunks:
                 fname = c.filename()
                 if fname in backups:
                     c.write(fp)
             dopatch = fp.tell()
             fp.seek(0)
 
             # 2.5 optionally review / modify patch in text editor
             if opts.get(b'review', False):
                 patchtext = (
                     crecordmod.diffhelptext
                     + crecordmod.patchhelptext
                     + fp.read()
                 )
                 reviewedpatch = ui.edit(
                     patchtext, b"", action=b"diff", repopath=repo.path
                 )
                 fp.truncate(0)
                 fp.write(reviewedpatch)
                 fp.seek(0)
 
             [os.unlink(repo.wjoin(c)) for c in newlyaddedandmodifiedfiles]
             # 3a. apply filtered patch to clean repo  (clean)
             if backups:
                 m = scmutil.matchfiles(repo, set(backups.keys()) | alsorestore)
                 mergemod.revert_to(repo[b'.'], matcher=m)
 
             # 3b. (apply)
             if dopatch:
                 try:
                     ui.debug(b'applying patch\n')
                     ui.debug(fp.getvalue())
                     patch.internalpatch(ui, repo, fp, 1, eolmode=None)
                 except error.PatchError as err:
                     raise error.InputError(pycompat.bytestr(err))
             del fp
 
             # 4. We prepared working directory according to filtered
             #    patch. Now is the time to delegate the job to
             #    commit/qrefresh or the like!
 
             # Make all of the pathnames absolute.
             newfiles = [repo.wjoin(nf) for nf in newfiles]
             return commitfunc(ui, repo, *newfiles, **pycompat.strkwargs(opts))
         finally:
             # 5. finally restore backed-up files
             try:
                 dirstate = repo.dirstate
                 for realname, tmpname in pycompat.iteritems(backups):
                     ui.debug(b'restoring %r to %r\n' % (tmpname, realname))
 
                     if dirstate[realname] == b'n':
                         # without normallookup, restoring timestamp
                         # may cause partially committed files
                         # to be treated as unmodified
                         dirstate.normallookup(realname)
 
                     # copystat=True here and above are a hack to trick any
                     # editors that have f open that we haven't modified them.
                     #
                     # Also note that this racy as an editor could notice the
                     # file's mtime before we've finished writing it.
                     util.copyfile(tmpname, repo.wjoin(realname), copystat=True)
                     os.unlink(tmpname)
                 if tobackup:
                     os.rmdir(backupdir)
             except OSError:
                 pass
 
     def recordinwlock(ui, repo, message, match, opts):
         with repo.wlock():
             return recordfunc(ui, repo, message, match, opts)
 
     return commit(ui, repo, recordinwlock, pats, opts)
 
 
 class dirnode(object):
     """
     Represent a directory in user working copy with information required for
     the purpose of tersing its status.
 
     path is the path to the directory, without a trailing '/'
 
     statuses is a set of statuses of all files in this directory (this includes
     all the files in all the subdirectories too)
 
     files is a list of files which are direct child of this directory
 
     subdirs is a dictionary of sub-directory name as the key and it's own
     dirnode object as the value
     """
 
     def __init__(self, dirpath):
         self.path = dirpath
         self.statuses = set()
         self.files = []
         self.subdirs = {}
 
     def _addfileindir(self, filename, status):
         """Add a file in this directory as a direct child."""
         self.files.append((filename, status))
 
     def addfile(self, filename, status):
         """
         Add a file to this directory or to its direct parent directory.
 
         If the file is not direct child of this directory, we traverse to the
         directory of which this file is a direct child of and add the file
         there.
         """
 
         # the filename contains a path separator, it means it's not the direct
         # child of this directory
         if b'/' in filename:
             subdir, filep = filename.split(b'/', 1)
 
             # does the dirnode object for subdir exists
             if subdir not in self.subdirs:
                 subdirpath = pathutil.join(self.path, subdir)
                 self.subdirs[subdir] = dirnode(subdirpath)
 
             # try adding the file in subdir
             self.subdirs[subdir].addfile(filep, status)
 
         else:
             self._addfileindir(filename, status)
 
         if status not in self.statuses:
             self.statuses.add(status)
 
     def iterfilepaths(self):
         """Yield (status, path) for files directly under this directory."""
         for f, st in self.files:
             yield st, pathutil.join(self.path, f)
 
     def tersewalk(self, terseargs):
         """
         Yield (status, path) obtained by processing the status of this
         dirnode.
 
         terseargs is the string of arguments passed by the user with `--terse`
         flag.
 
         Following are the cases which can happen:
 
         1) All the files in the directory (including all the files in its
         subdirectories) share the same status and the user has asked us to terse
         that status. -> yield (status, dirpath).  dirpath will end in '/'.
 
         2) Otherwise, we do following:
 
                 a) Yield (status, filepath)  for all the files which are in this
                     directory (only the ones in this directory, not the subdirs)
 
                 b) Recurse the function on all the subdirectories of this
                    directory
         """
 
         if len(self.statuses) == 1:
             onlyst = self.statuses.pop()
 
             # Making sure we terse only when the status abbreviation is
             # passed as terse argument
             if onlyst in terseargs:
                 yield onlyst, self.path + b'/'
                 return
 
         # add the files to status list
         for st, fpath in self.iterfilepaths():
             yield st, fpath
 
         # recurse on the subdirs
         for dirobj in self.subdirs.values():
             for st, fpath in dirobj.tersewalk(terseargs):
                 yield st, fpath
 
 
 def tersedir(statuslist, terseargs):
     """
     Terse the status if all the files in a directory shares the same status.
 
     statuslist is scmutil.status() object which contains a list of files for
     each status.
     terseargs is string which is passed by the user as the argument to `--terse`
     flag.
 
     The function makes a tree of objects of dirnode class, and at each node it
     stores the information required to know whether we can terse a certain
     directory or not.
     """
     # the order matters here as that is used to produce final list
     allst = (b'm', b'a', b'r', b'd', b'u', b'i', b'c')
 
     # checking the argument validity
     for s in pycompat.bytestr(terseargs):
         if s not in allst:
             raise error.InputError(_(b"'%s' not recognized") % s)
 
     # creating a dirnode object for the root of the repo
     rootobj = dirnode(b'')
     pstatus = (
         b'modified',
         b'added',
         b'deleted',
         b'clean',
         b'unknown',
         b'ignored',
         b'removed',
     )
 
     tersedict = {}
     for attrname in pstatus:
         statuschar = attrname[0:1]
         for f in getattr(statuslist, attrname):
             rootobj.addfile(f, statuschar)
         tersedict[statuschar] = []
 
     # we won't be tersing the root dir, so add files in it
     for st, fpath in rootobj.iterfilepaths():
         tersedict[st].append(fpath)
 
     # process each sub-directory and build tersedict
     for subdir in rootobj.subdirs.values():
         for st, f in subdir.tersewalk(terseargs):
             tersedict[st].append(f)
 
     tersedlist = []
     for st in allst:
         tersedict[st].sort()
         tersedlist.append(tersedict[st])
 
     return scmutil.status(*tersedlist)
 
 
 def _commentlines(raw):
     '''Surround lineswith a comment char and a new line'''
     lines = raw.splitlines()
     commentedlines = [b'# %s' % line for line in lines]
     return b'\n'.join(commentedlines) + b'\n'
 
 
 @attr.s(frozen=True)
 class morestatus(object):
     reporoot = attr.ib()
     unfinishedop = attr.ib()
     unfinishedmsg = attr.ib()
     activemerge = attr.ib()
     unresolvedpaths = attr.ib()
     _formattedpaths = attr.ib(init=False, default=set())
     _label = b'status.morestatus'
 
     def formatfile(self, path, fm):
         self._formattedpaths.add(path)
         if self.activemerge and path in self.unresolvedpaths:
             fm.data(unresolved=True)
 
     def formatfooter(self, fm):
         if self.unfinishedop or self.unfinishedmsg:
             fm.startitem()
             fm.data(itemtype=b'morestatus')
 
         if self.unfinishedop:
             fm.data(unfinished=self.unfinishedop)
             statemsg = (
                 _(b'The repository is in an unfinished *%s* state.')
                 % self.unfinishedop
             )
             fm.plain(b'%s\n' % _commentlines(statemsg), label=self._label)
         if self.unfinishedmsg:
             fm.data(unfinishedmsg=self.unfinishedmsg)
 
         # May also start new data items.
         self._formatconflicts(fm)
 
         if self.unfinishedmsg:
             fm.plain(
                 b'%s\n' % _commentlines(self.unfinishedmsg), label=self._label
             )
 
     def _formatconflicts(self, fm):
         if not self.activemerge:
             return
 
         if self.unresolvedpaths:
             mergeliststr = b'\n'.join(
                 [
                     b'    %s'
                     % util.pathto(self.reporoot, encoding.getcwd(), path)
                     for path in self.unresolvedpaths
                 ]
             )
             msg = (
                 _(
                     b'''Unresolved merge conflicts:
 
 %s
 
 To mark files as resolved:  hg resolve --mark FILE'''
                 )
                 % mergeliststr
             )
 
             # If any paths with unresolved conflicts were not previously
             # formatted, output them now.
             for f in self.unresolvedpaths:
                 if f in self._formattedpaths:
                     # Already output.
                     continue
                 fm.startitem()
                 # We can't claim to know the status of the file - it may just
                 # have been in one of the states that were not requested for
                 # display, so it could be anything.
                 fm.data(itemtype=b'file', path=f, unresolved=True)
 
         else:
             msg = _(b'No unresolved merge conflicts.')
 
         fm.plain(b'%s\n' % _commentlines(msg), label=self._label)
 
 
 def readmorestatus(repo):
     """Returns a morestatus object if the repo has unfinished state."""
     statetuple = statemod.getrepostate(repo)
     mergestate = mergestatemod.mergestate.read(repo)
     activemerge = mergestate.active()
     if not statetuple and not activemerge:
         return None
 
     unfinishedop = unfinishedmsg = unresolved = None
     if statetuple:
         unfinishedop, unfinishedmsg = statetuple
     if activemerge:
         unresolved = sorted(mergestate.unresolved())
     return morestatus(
         repo.root, unfinishedop, unfinishedmsg, activemerge, unresolved
     )
 
 
 def findpossible(cmd, table, strict=False):
     """
     Return cmd -> (aliases, command table entry)
     for each matching command.
     Return debug commands (or their aliases) only if no normal command matches.
     """
     choice = {}
     debugchoice = {}
 
     if cmd in table:
         # short-circuit exact matches, "log" alias beats "log|history"
         keys = [cmd]
     else:
         keys = table.keys()
 
     allcmds = []
     for e in keys:
         aliases = parsealiases(e)
         allcmds.extend(aliases)
         found = None
         if cmd in aliases:
             found = cmd
         elif not strict:
             for a in aliases:
                 if a.startswith(cmd):
                     found = a
                     break
         if found is not None:
             if aliases[0].startswith(b"debug") or found.startswith(b"debug"):
                 debugchoice[found] = (aliases, table[e])
             else:
                 choice[found] = (aliases, table[e])
 
     if not choice and debugchoice:
         choice = debugchoice
 
     return choice, allcmds
 
 
 def findcmd(cmd, table, strict=True):
     """Return (aliases, command table entry) for command string."""
     choice, allcmds = findpossible(cmd, table, strict)
 
     if cmd in choice:
         return choice[cmd]
 
     if len(choice) > 1:
         clist = sorted(choice)
         raise error.AmbiguousCommand(cmd, clist)
 
     if choice:
         return list(choice.values())[0]
 
     raise error.UnknownCommand(cmd, allcmds)
 
 
 def changebranch(ui, repo, revs, label, opts):
     """Change the branch name of given revs to label"""
 
     with repo.wlock(), repo.lock(), repo.transaction(b'branches'):
         # abort in case of uncommitted merge or dirty wdir
         bailifchanged(repo)
         revs = scmutil.revrange(repo, revs)
         if not revs:
             raise error.InputError(b"empty revision set")
         roots = repo.revs(b'roots(%ld)', revs)
         if len(roots) > 1:
             raise error.InputError(
                 _(b"cannot change branch of non-linear revisions")
             )
         rewriteutil.precheck(repo, revs, b'change branch of')
 
         root = repo[roots.first()]
         rpb = {parent.branch() for parent in root.parents()}
         if (
             not opts.get(b'force')
             and label not in rpb
             and label in repo.branchmap()
         ):
             raise error.InputError(
                 _(b"a branch of the same name already exists")
             )
 
         # make sure only topological heads
         if repo.revs(b'heads(%ld) - head()', revs):
             raise error.InputError(
                 _(b"cannot change branch in middle of a stack")
             )
 
         replacements = {}
         # avoid import cycle mercurial.cmdutil -> mercurial.context ->
         # mercurial.subrepo -> mercurial.cmdutil
         from . import context
 
         for rev in revs:
             ctx = repo[rev]
             oldbranch = ctx.branch()
             # check if ctx has same branch
             if oldbranch == label:
                 continue
 
             def filectxfn(repo, newctx, path):
                 try:
                     return ctx[path]
                 except error.ManifestLookupError:
                     return None
 
             ui.debug(
                 b"changing branch of '%s' from '%s' to '%s'\n"
                 % (hex(ctx.node()), oldbranch, label)
             )
             extra = ctx.extra()
             extra[b'branch_change'] = hex(ctx.node())
             # While changing branch of set of linear commits, make sure that
             # we base our commits on new parent rather than old parent which
             # was obsoleted while changing the branch
             p1 = ctx.p1().node()
             p2 = ctx.p2().node()
             if p1 in replacements:
                 p1 = replacements[p1][0]
             if p2 in replacements:
                 p2 = replacements[p2][0]
 
             mc = context.memctx(
                 repo,
                 (p1, p2),
                 ctx.description(),
                 ctx.files(),
                 filectxfn,
                 user=ctx.user(),
                 date=ctx.date(),
                 extra=extra,
                 branch=label,
             )
 
             newnode = repo.commitctx(mc)
             replacements[ctx.node()] = (newnode,)
             ui.debug(b'new node id is %s\n' % hex(newnode))
 
         # create obsmarkers and move bookmarks
         scmutil.cleanupnodes(
             repo, replacements, b'branch-change', fixphase=True
         )
 
         # move the working copy too
         wctx = repo[None]
         # in-progress merge is a bit too complex for now.
         if len(wctx.parents()) == 1:
             newid = replacements.get(wctx.p1().node())
             if newid is not None:
                 # avoid import cycle mercurial.cmdutil -> mercurial.hg ->
                 # mercurial.cmdutil
                 from . import hg
 
                 hg.update(repo, newid[0], quietempty=True)
 
         ui.status(_(b"changed branch on %d changesets\n") % len(replacements))
 
 
 def findrepo(p):
     while not os.path.isdir(os.path.join(p, b".hg")):
         oldp, p = p, os.path.dirname(p)
         if p == oldp:
             return None
 
     return p
 
 
 def bailifchanged(repo, merge=True, hint=None):
     """enforce the precondition that working directory must be clean.
 
     'merge' can be set to false if a pending uncommitted merge should be
     ignored (such as when 'update --check' runs).
 
     'hint' is the usual hint given to Abort exception.
     """
 
     if merge and repo.dirstate.p2() != repo.nullid:
         raise error.StateError(_(b'outstanding uncommitted merge'), hint=hint)
     st = repo.status()
     if st.modified or st.added or st.removed or st.deleted:
         raise error.StateError(_(b'uncommitted changes'), hint=hint)
     ctx = repo[None]
     for s in sorted(ctx.substate):
         ctx.sub(s).bailifchanged(hint=hint)
 
 
 def logmessage(ui, opts):
     """get the log message according to -m and -l option"""
 
     check_at_most_one_arg(opts, b'message', b'logfile')
 
     message = opts.get(b'message')
     logfile = opts.get(b'logfile')
 
     if not message and logfile:
         try:
             if isstdiofilename(logfile):
                 message = ui.fin.read()
             else:
                 message = b'\n'.join(util.readfile(logfile).splitlines())
         except IOError as inst:
             raise error.Abort(
                 _(b"can't read commit message '%s': %s")
                 % (logfile, encoding.strtolocal(inst.strerror))
             )
     return message
 
 
 def mergeeditform(ctxorbool, baseformname):
     """return appropriate editform name (referencing a committemplate)
 
     'ctxorbool' is either a ctx to be committed, or a bool indicating whether
     merging is committed.
 
     This returns baseformname with '.merge' appended if it is a merge,
     otherwise '.normal' is appended.
     """
     if isinstance(ctxorbool, bool):
         if ctxorbool:
             return baseformname + b".merge"
     elif len(ctxorbool.parents()) > 1:
         return baseformname + b".merge"
 
     return baseformname + b".normal"
 
 
 def getcommiteditor(
     edit=False, finishdesc=None, extramsg=None, editform=b'', **opts
 ):
     """get appropriate commit message editor according to '--edit' option
 
     'finishdesc' is a function to be called with edited commit message
     (= 'description' of the new changeset) just after editing, but
     before checking empty-ness. It should return actual text to be
     stored into history. This allows to change description before
     storing.
 
     'extramsg' is a extra message to be shown in the editor instead of
     'Leave message empty to abort commit' line. 'HG: ' prefix and EOL
     is automatically added.
 
     'editform' is a dot-separated list of names, to distinguish
     the purpose of commit text editing.
 
     'getcommiteditor' returns 'commitforceeditor' regardless of
     'edit', if one of 'finishdesc' or 'extramsg' is specified, because
     they are specific for usage in MQ.
     """
     if edit or finishdesc or extramsg:
         return lambda r, c, s: commitforceeditor(
             r, c, s, finishdesc=finishdesc, extramsg=extramsg, editform=editform
         )
     elif editform:
         return lambda r, c, s: commiteditor(r, c, s, editform=editform)
     else:
         return commiteditor
 
 
 def _escapecommandtemplate(tmpl):
     parts = []
     for typ, start, end in templater.scantemplate(tmpl, raw=True):
         if typ == b'string':
             parts.append(stringutil.escapestr(tmpl[start:end]))
         else:
             parts.append(tmpl[start:end])
     return b''.join(parts)
 
 
 def rendercommandtemplate(ui, tmpl, props):
     r"""Expand a literal template 'tmpl' in a way suitable for command line
 
     '\' in outermost string is not taken as an escape character because it
     is a directory separator on Windows.
 
     >>> from . import ui as uimod
     >>> ui = uimod.ui()
     >>> rendercommandtemplate(ui, b'c:\\{path}', {b'path': b'foo'})
     'c:\\foo'
     >>> rendercommandtemplate(ui, b'{"c:\\{path}"}', {'path': b'foo'})
     'c:{path}'
     """
     if not tmpl:
         return tmpl
     t = formatter.maketemplater(ui, _escapecommandtemplate(tmpl))
     return t.renderdefault(props)
 
 
 def rendertemplate(ctx, tmpl, props=None):
     """Expand a literal template 'tmpl' byte-string against one changeset
 
     Each props item must be a stringify-able value or a callable returning
     such value, i.e. no bare list nor dict should be passed.
     """
     repo = ctx.repo()
     tres = formatter.templateresources(repo.ui, repo)
     t = formatter.maketemplater(
         repo.ui, tmpl, defaults=templatekw.keywords, resources=tres
     )
     mapping = {b'ctx': ctx}
     if props:
         mapping.update(props)
     return t.renderdefault(mapping)
 
 
 def format_changeset_summary(ui, ctx, command=None, default_spec=None):
     """Format a changeset summary (one line)."""
     spec = None
     if command:
         spec = ui.config(
             b'command-templates', b'oneline-summary.%s' % command, None
         )
     if not spec:
         spec = ui.config(b'command-templates', b'oneline-summary')
     if not spec:
         spec = default_spec
     if not spec:
         spec = (
             b'{separate(" ", '
             b'label("oneline-summary.changeset", "{rev}:{node|short}")'
             b', '
             b'join(filter(namespaces % "{ifeq(namespace, "branches", "", join(names % "{label("oneline-summary.{namespace}", name)}", " "))}"), " ")'
             b')} '
             b'"{label("oneline-summary.desc", desc|firstline)}"'
         )
     text = rendertemplate(ctx, spec)
     return text.split(b'\n')[0]
 
 
 def _buildfntemplate(pat, total=None, seqno=None, revwidth=None, pathname=None):
     r"""Convert old-style filename format string to template string
 
     >>> _buildfntemplate(b'foo-%b-%n.patch', seqno=0)
     'foo-{reporoot|basename}-{seqno}.patch'
     >>> _buildfntemplate(b'%R{tags % "{tag}"}%H')
     '{rev}{tags % "{tag}"}{node}'
 
     '\' in outermost strings has to be escaped because it is a directory
     separator on Windows:
 
     >>> _buildfntemplate(b'c:\\tmp\\%R\\%n.patch', seqno=0)
     'c:\\\\tmp\\\\{rev}\\\\{seqno}.patch'
     >>> _buildfntemplate(b'\\\\foo\\bar.patch')
     '\\\\\\\\foo\\\\bar.patch'
     >>> _buildfntemplate(b'\\{tags % "{tag}"}')
     '\\\\{tags % "{tag}"}'
 
     but inner strings follow the template rules (i.e. '\' is taken as an
     escape character):
 
     >>> _buildfntemplate(br'{"c:\tmp"}', seqno=0)
     '{"c:\\tmp"}'
     """
     expander = {
         b'H': b'{node}',
         b'R': b'{rev}',
         b'h': b'{node|short}',
         b'm': br'{sub(r"[^\w]", "_", desc|firstline)}',
         b'r': b'{if(revwidth, pad(rev, revwidth, "0", left=True), rev)}',
         b'%': b'%',
         b'b': b'{reporoot|basename}',
     }
     if total is not None:
         expander[b'N'] = b'{total}'
     if seqno is not None:
         expander[b'n'] = b'{seqno}'
     if total is not None and seqno is not None:
         expander[b'n'] = b'{pad(seqno, total|stringify|count, "0", left=True)}'
     if pathname is not None:
         expander[b's'] = b'{pathname|basename}'
         expander[b'd'] = b'{if(pathname|dirname, pathname|dirname, ".")}'
         expander[b'p'] = b'{pathname}'
 
     newname = []
     for typ, start, end in templater.scantemplate(pat, raw=True):
         if typ != b'string':
             newname.append(pat[start:end])
             continue
         i = start
         while i < end:
             n = pat.find(b'%', i, end)
             if n < 0:
                 newname.append(stringutil.escapestr(pat[i:end]))
                 break
             newname.append(stringutil.escapestr(pat[i:n]))
             if n + 2 > end:
                 raise error.Abort(
                     _(b"incomplete format spec in output filename")
                 )
             c = pat[n + 1 : n + 2]
             i = n + 2
             try:
                 newname.append(expander[c])
             except KeyError:
                 raise error.Abort(
                     _(b"invalid format spec '%%%s' in output filename") % c
                 )
     return b''.join(newname)
 
 
 def makefilename(ctx, pat, **props):
     if not pat:
         return pat
     tmpl = _buildfntemplate(pat, **props)
     # BUG: alias expansion shouldn't be made against template fragments
     # rewritten from %-format strings, but we have no easy way to partially
     # disable the expansion.
     return rendertemplate(ctx, tmpl, pycompat.byteskwargs(props))
 
 
 def isstdiofilename(pat):
     """True if the given pat looks like a filename denoting stdin/stdout"""
     return not pat or pat == b'-'
 
 
 class _unclosablefile(object):
     def __init__(self, fp):
         self._fp = fp
 
     def close(self):
         pass
 
     def __iter__(self):
         return iter(self._fp)
 
     def __getattr__(self, attr):
         return getattr(self._fp, attr)
 
     def __enter__(self):
         return self
 
     def __exit__(self, exc_type, exc_value, exc_tb):
         pass
 
 
 def makefileobj(ctx, pat, mode=b'wb', **props):
     writable = mode not in (b'r', b'rb')
 
     if isstdiofilename(pat):
         repo = ctx.repo()
         if writable:
             fp = repo.ui.fout
         else:
             fp = repo.ui.fin
         return _unclosablefile(fp)
     fn = makefilename(ctx, pat, **props)
     return open(fn, mode)
 
 
 def openstorage(repo, cmd, file_, opts, returnrevlog=False):
     """opens the changelog, manifest, a filelog or a given revlog"""
     cl = opts[b'changelog']
     mf = opts[b'manifest']
     dir = opts[b'dir']
     msg = None
     if cl and mf:
         msg = _(b'cannot specify --changelog and --manifest at the same time')
     elif cl and dir:
         msg = _(b'cannot specify --changelog and --dir at the same time')
     elif cl or mf or dir:
         if file_:
             msg = _(b'cannot specify filename with --changelog or --manifest')
         elif not repo:
             msg = _(
                 b'cannot specify --changelog or --manifest or --dir '
                 b'without a repository'
             )
     if msg:
         raise error.InputError(msg)
 
     r = None
     if repo:
         if cl:
             r = repo.unfiltered().changelog
         elif dir:
             if not scmutil.istreemanifest(repo):
                 raise error.InputError(
                     _(
                         b"--dir can only be used on repos with "
                         b"treemanifest enabled"
                     )
                 )
             if not dir.endswith(b'/'):
                 dir = dir + b'/'
             dirlog = repo.manifestlog.getstorage(dir)
             if len(dirlog):
                 r = dirlog
         elif mf:
             r = repo.manifestlog.getstorage(b'')
         elif file_:
             filelog = repo.file(file_)
             if len(filelog):
                 r = filelog
 
         # Not all storage may be revlogs. If requested, try to return an actual
         # revlog instance.
         if returnrevlog:
             if isinstance(r, revlog.revlog):
                 pass
             elif util.safehasattr(r, b'_revlog'):
                 r = r._revlog  # pytype: disable=attribute-error
             elif r is not None:
                 raise error.InputError(
                     _(b'%r does not appear to be a revlog') % r
                 )
 
     if not r:
         if not returnrevlog:
             raise error.InputError(_(b'cannot give path to non-revlog'))
 
         if not file_:
             raise error.CommandError(cmd, _(b'invalid arguments'))
         if not os.path.isfile(file_):
             raise error.InputError(_(b"revlog '%s' not found") % file_)
 
         target = (revlog_constants.KIND_OTHER, b'free-form:%s' % file_)
         r = revlog.revlog(
             vfsmod.vfs(encoding.getcwd(), audit=False),
             target=target,
             radix=file_[:-2],
         )
     return r
 
 
 def openrevlog(repo, cmd, file_, opts):
     """Obtain a revlog backing storage of an item.
 
     This is similar to ``openstorage()`` except it always returns a revlog.
 
     In most cases, a caller cares about the main storage object - not the
     revlog backing it. Therefore, this function should only be used by code
     that needs to examine low-level revlog implementation details. e.g. debug
     commands.
     """
     return openstorage(repo, cmd, file_, opts, returnrevlog=True)
 
 
 def copy(ui, repo, pats, opts, rename=False):
     check_incompatible_arguments(opts, b'forget', [b'dry_run'])
 
     # called with the repo lock held
     #
     # hgsep => pathname that uses "/" to separate directories
     # ossep => pathname that uses os.sep to separate directories
     cwd = repo.getcwd()
     targets = {}
     forget = opts.get(b"forget")
     after = opts.get(b"after")
     dryrun = opts.get(b"dry_run")
     rev = opts.get(b'at_rev')
     if rev:
         if not forget and not after:
             # TODO: Remove this restriction and make it also create the copy
             #       targets (and remove the rename source if rename==True).
             raise error.InputError(_(b'--at-rev requires --after'))
         ctx = scmutil.revsingle(repo, rev)
         if len(ctx.parents()) > 1:
             raise error.InputError(
                 _(b'cannot mark/unmark copy in merge commit')
             )
     else:
         ctx = repo[None]
 
     pctx = ctx.p1()
 
     uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
 
     if forget:
         if ctx.rev() is None:
             new_ctx = ctx
         else:
             if len(ctx.parents()) > 1:
                 raise error.InputError(_(b'cannot unmark copy in merge commit'))
             # avoid cycle context -> subrepo -> cmdutil
             from . import context
 
             rewriteutil.precheck(repo, [ctx.rev()], b'uncopy')
             new_ctx = context.overlayworkingctx(repo)
             new_ctx.setbase(ctx.p1())
             mergemod.graft(repo, ctx, wctx=new_ctx)
 
         match = scmutil.match(ctx, pats, opts)
 
         current_copies = ctx.p1copies()
         current_copies.update(ctx.p2copies())
 
         uipathfn = scmutil.getuipathfn(repo)
         for f in ctx.walk(match):
             if f in current_copies:
                 new_ctx[f].markcopied(None)
             elif match.exact(f):
                 ui.warn(
                     _(
                         b'%s: not unmarking as copy - file is not marked as copied\n'
                     )
                     % uipathfn(f)
                 )
 
         if ctx.rev() is not None:
             with repo.lock():
                 mem_ctx = new_ctx.tomemctx_for_amend(ctx)
                 new_node = mem_ctx.commit()
 
                 if repo.dirstate.p1() == ctx.node():
                     with repo.dirstate.parentchange():
                         scmutil.movedirstate(repo, repo[new_node])
                 replacements = {ctx.node(): [new_node]}
                 scmutil.cleanupnodes(
                     repo, replacements, b'uncopy', fixphase=True
                 )
 
         return
 
     pats = scmutil.expandpats(pats)
     if not pats:
         raise error.InputError(_(b'no source or destination specified'))
     if len(pats) == 1:
         raise error.InputError(_(b'no destination specified'))
     dest = pats.pop()
 
     def walkpat(pat):
         srcs = []
         # TODO: Inline and simplify the non-working-copy version of this code
         # since it shares very little with the working-copy version of it.
         ctx_to_walk = ctx if ctx.rev() is None else pctx
         m = scmutil.match(ctx_to_walk, [pat], opts, globbed=True)
         for abs in ctx_to_walk.walk(m):
             rel = uipathfn(abs)
             exact = m.exact(abs)
             if abs not in ctx:
                 if abs in pctx:
                     if not after:
                         if exact:
                             ui.warn(
                                 _(
                                     b'%s: not copying - file has been marked '
                                     b'for remove\n'
                                 )
                                 % rel
                             )
                         continue
                 else:
                     if exact:
                         ui.warn(
                             _(b'%s: not copying - file is not managed\n') % rel
                         )
                     continue
 
             # abs: hgsep
             # rel: ossep
             srcs.append((abs, rel, exact))
         return srcs
 
     if ctx.rev() is not None:
         rewriteutil.precheck(repo, [ctx.rev()], b'uncopy')
         absdest = pathutil.canonpath(repo.root, cwd, dest)
         if ctx.hasdir(absdest):
             raise error.InputError(
                 _(b'%s: --at-rev does not support a directory as destination')
                 % uipathfn(absdest)
             )
         if absdest not in ctx:
             raise error.InputError(
                 _(b'%s: copy destination does not exist in %s')
                 % (uipathfn(absdest), ctx)
             )
 
         # avoid cycle context -> subrepo -> cmdutil
         from . import context
 
         copylist = []
         for pat in pats:
             srcs = walkpat(pat)
             if not srcs:
                 continue
             for abs, rel, exact in srcs:
                 copylist.append(abs)
 
         if not copylist:
             raise error.InputError(_(b'no files to copy'))
         # TODO: Add support for `hg cp --at-rev . foo bar dir` and
         # `hg cp --at-rev . dir1 dir2`, preferably unifying the code with the
         # existing functions below.
         if len(copylist) != 1:
             raise error.InputError(_(b'--at-rev requires a single source'))
 
         new_ctx = context.overlayworkingctx(repo)
         new_ctx.setbase(ctx.p1())
         mergemod.graft(repo, ctx, wctx=new_ctx)
 
         new_ctx.markcopied(absdest, copylist[0])
 
         with repo.lock():
             mem_ctx = new_ctx.tomemctx_for_amend(ctx)
             new_node = mem_ctx.commit()
 
             if repo.dirstate.p1() == ctx.node():
                 with repo.dirstate.parentchange():
                     scmutil.movedirstate(repo, repo[new_node])
             replacements = {ctx.node(): [new_node]}
             scmutil.cleanupnodes(repo, replacements, b'copy', fixphase=True)
 
         return
 
     # abssrc: hgsep
     # relsrc: ossep
     # otarget: ossep
     def copyfile(abssrc, relsrc, otarget, exact):
         abstarget = pathutil.canonpath(repo.root, cwd, otarget)
         if b'/' in abstarget:
             # We cannot normalize abstarget itself, this would prevent
             # case only renames, like a => A.
             abspath, absname = abstarget.rsplit(b'/', 1)
             abstarget = repo.dirstate.normalize(abspath) + b'/' + absname
         reltarget = repo.pathto(abstarget, cwd)
         target = repo.wjoin(abstarget)
         src = repo.wjoin(abssrc)
         state = repo.dirstate[abstarget]
 
         scmutil.checkportable(ui, abstarget)
 
         # check for collisions
         prevsrc = targets.get(abstarget)
         if prevsrc is not None:
             ui.warn(
                 _(b'%s: not overwriting - %s collides with %s\n')
                 % (
                     reltarget,
                     repo.pathto(abssrc, cwd),
                     repo.pathto(prevsrc, cwd),
                 )
             )
             return True  # report a failure
 
         # check for overwrites
         exists = os.path.lexists(target)
         samefile = False
         if exists and abssrc != abstarget:
             if repo.dirstate.normalize(abssrc) == repo.dirstate.normalize(
                 abstarget
             ):
                 if not rename:
                     ui.warn(_(b"%s: can't copy - same file\n") % reltarget)
                     return True  # report a failure
                 exists = False
                 samefile = True
 
         if not after and exists or after and state in b'mn':
             if not opts[b'force']:
                 if state in b'mn':
                     msg = _(b'%s: not overwriting - file already committed\n')
                     if after:
                         flags = b'--after --force'
                     else:
                         flags = b'--force'
                     if rename:
                         hint = (
                             _(
                                 b"('hg rename %s' to replace the file by "
                                 b'recording a rename)\n'
                             )
                             % flags
                         )
                     else:
                         hint = (
                             _(
                                 b"('hg copy %s' to replace the file by "
                                 b'recording a copy)\n'
                             )
                             % flags
                         )
                 else:
                     msg = _(b'%s: not overwriting - file exists\n')
                     if rename:
                         hint = _(
                             b"('hg rename --after' to record the rename)\n"
                         )
                     else:
                         hint = _(b"('hg copy --after' to record the copy)\n")
                 ui.warn(msg % reltarget)
                 ui.warn(hint)
                 return True  # report a failure
 
         if after:
             if not exists:
                 if rename:
                     ui.warn(
                         _(b'%s: not recording move - %s does not exist\n')
                         % (relsrc, reltarget)
                     )
                 else:
                     ui.warn(
                         _(b'%s: not recording copy - %s does not exist\n')
                         % (relsrc, reltarget)
                     )
                 return True  # report a failure
         elif not dryrun:
             try:
                 if exists:
                     os.unlink(target)
                 targetdir = os.path.dirname(target) or b'.'
                 if not os.path.isdir(targetdir):
                     os.makedirs(targetdir)
                 if samefile:
                     tmp = target + b"~hgrename"
                     os.rename(src, tmp)
                     os.rename(tmp, target)
                 else:
                     # Preserve stat info on renames, not on copies; this matches
                     # Linux CLI behavior.
                     util.copyfile(src, target, copystat=rename)
                 srcexists = True
             except IOError as inst:
                 if inst.errno == errno.ENOENT:
                     ui.warn(_(b'%s: deleted in working directory\n') % relsrc)
                     srcexists = False
                 else:
                     ui.warn(
                         _(b'%s: cannot copy - %s\n')
                         % (relsrc, encoding.strtolocal(inst.strerror))
                     )
                     return True  # report a failure
 
         if ui.verbose or not exact:
             if rename:
                 ui.status(_(b'moving %s to %s\n') % (relsrc, reltarget))
             else:
                 ui.status(_(b'copying %s to %s\n') % (relsrc, reltarget))
 
         targets[abstarget] = abssrc
 
         # fix up dirstate
         scmutil.dirstatecopy(
             ui, repo, ctx, abssrc, abstarget, dryrun=dryrun, cwd=cwd
         )
         if rename and not dryrun:
             if not after and srcexists and not samefile:
                 rmdir = repo.ui.configbool(b'experimental', b'removeemptydirs')
                 repo.wvfs.unlinkpath(abssrc, rmdir=rmdir)
             ctx.forget([abssrc])
 
     # pat: ossep
     # dest ossep
     # srcs: list of (hgsep, hgsep, ossep, bool)
     # return: function that takes hgsep and returns ossep
     def targetpathfn(pat, dest, srcs):
         if os.path.isdir(pat):
             abspfx = pathutil.canonpath(repo.root, cwd, pat)
             abspfx = util.localpath(abspfx)
             if destdirexists:
                 striplen = len(os.path.split(abspfx)[0])
             else:
                 striplen = len(abspfx)
             if striplen:
                 striplen += len(pycompat.ossep)
             res = lambda p: os.path.join(dest, util.localpath(p)[striplen:])
         elif destdirexists:
             res = lambda p: os.path.join(
                 dest, os.path.basename(util.localpath(p))
             )
         else:
             res = lambda p: dest
         return res
 
     # pat: ossep
     # dest ossep
     # srcs: list of (hgsep, hgsep, ossep, bool)
     # return: function that takes hgsep and returns ossep
     def targetpathafterfn(pat, dest, srcs):
         if matchmod.patkind(pat):
             # a mercurial pattern
             res = lambda p: os.path.join(
                 dest, os.path.basename(util.localpath(p))
             )
         else:
             abspfx = pathutil.canonpath(repo.root, cwd, pat)
             if len(abspfx) < len(srcs[0][0]):
                 # A directory. Either the target path contains the last
                 # component of the source path or it does not.
                 def evalpath(striplen):
                     score = 0
                     for s in srcs:
                         t = os.path.join(dest, util.localpath(s[0])[striplen:])
                         if os.path.lexists(t):
                             score += 1
                     return score
 
                 abspfx = util.localpath(abspfx)
                 striplen = len(abspfx)
                 if striplen:
                     striplen += len(pycompat.ossep)
                 if os.path.isdir(os.path.join(dest, os.path.split(abspfx)[1])):
                     score = evalpath(striplen)
                     striplen1 = len(os.path.split(abspfx)[0])
                     if striplen1:
                         striplen1 += len(pycompat.ossep)
                     if evalpath(striplen1) > score:
                         striplen = striplen1
                 res = lambda p: os.path.join(dest, util.localpath(p)[striplen:])
             else:
                 # a file
                 if destdirexists:
                     res = lambda p: os.path.join(
                         dest, os.path.basename(util.localpath(p))
                     )
                 else:
                     res = lambda p: dest
         return res
 
     destdirexists = os.path.isdir(dest) and not os.path.islink(dest)
     if not destdirexists:
         if len(pats) > 1 or matchmod.patkind(pats[0]):
             raise error.InputError(
                 _(
                     b'with multiple sources, destination must be an '
                     b'existing directory'
                 )
             )
         if util.endswithsep(dest):
             raise error.InputError(
                 _(b'destination %s is not a directory') % dest
             )
 
     tfn = targetpathfn
     if after:
         tfn = targetpathafterfn
     copylist = []
     for pat in pats:
         srcs = walkpat(pat)
         if not srcs:
             continue
         copylist.append((tfn(pat, dest, srcs), srcs))
     if not copylist:
         hint = None
         if rename:
             hint = _(b'maybe you meant to use --after --at-rev=.')
         raise error.InputError(_(b'no files to copy'), hint=hint)
 
     errors = 0
     for targetpath, srcs in copylist:
         for abssrc, relsrc, exact in srcs:
             if copyfile(abssrc, relsrc, targetpath(abssrc), exact):
                 errors += 1
 
     return errors != 0
 
 
 ## facility to let extension process additional data into an import patch
 # list of identifier to be executed in order
 extrapreimport = []  # run before commit
 extrapostimport = []  # run after commit
 # mapping from identifier to actual import function
 #
 # 'preimport' are run before the commit is made and are provided the following
 # arguments:
 # - repo: the localrepository instance,
 # - patchdata: data extracted from patch header (cf m.patch.patchheadermap),
 # - extra: the future extra dictionary of the changeset, please mutate it,
 # - opts: the import options.
 # XXX ideally, we would just pass an ctx ready to be computed, that would allow
 # mutation of in memory commit and more. Feel free to rework the code to get
 # there.
 extrapreimportmap = {}
 # 'postimport' are run after the commit is made and are provided the following
 # argument:
 # - ctx: the changectx created by import.
 extrapostimportmap = {}
 
 
 def tryimportone(ui, repo, patchdata, parents, opts, msgs, updatefunc):
     """Utility function used by commands.import to import a single patch
 
     This function is explicitly defined here to help the evolve extension to
     wrap this part of the import logic.
 
     The API is currently a bit ugly because it a simple code translation from
     the import command. Feel free to make it better.
 
     :patchdata: a dictionary containing parsed patch data (such as from
                 ``patch.extract()``)
     :parents: nodes that will be parent of the created commit
     :opts: the full dict of option passed to the import command
     :msgs: list to save commit message to.
            (used in case we need to save it when failing)
     :updatefunc: a function that update a repo to a given node
                  updatefunc(<repo>, <node>)
     """
     # avoid cycle context -> subrepo -> cmdutil
     from . import context
 
     tmpname = patchdata.get(b'filename')
     message = patchdata.get(b'message')
     user = opts.get(b'user') or patchdata.get(b'user')
     date = opts.get(b'date') or patchdata.get(b'date')
     branch = patchdata.get(b'branch')
     nodeid = patchdata.get(b'nodeid')
     p1 = patchdata.get(b'p1')
     p2 = patchdata.get(b'p2')
 
     nocommit = opts.get(b'no_commit')
     importbranch = opts.get(b'import_branch')
     update = not opts.get(b'bypass')
     strip = opts[b"strip"]
     prefix = opts[b"prefix"]
     sim = float(opts.get(b'similarity') or 0)
 
     if not tmpname:
         return None, None, False
 
     rejects = False
 
     cmdline_message = logmessage(ui, opts)
     if cmdline_message:
         # pickup the cmdline msg
         message = cmdline_message
     elif message:
         # pickup the patch msg
         message = message.strip()
     else:
         # launch the editor
         message = None
     ui.debug(b'message:\n%s\n' % (message or b''))
 
     if len(parents) == 1:
         parents.append(repo[nullrev])
     if opts.get(b'exact'):
         if not nodeid or not p1:
             raise error.InputError(_(b'not a Mercurial patch'))
         p1 = repo[p1]
         p2 = repo[p2 or nullrev]
     elif p2:
         try:
             p1 = repo[p1]
             p2 = repo[p2]
             # Without any options, consider p2 only if the
             # patch is being applied on top of the recorded
             # first parent.
             if p1 != parents[0]:
                 p1 = parents[0]
                 p2 = repo[nullrev]
         except error.RepoError:
             p1, p2 = parents
         if p2.rev() == nullrev:
             ui.warn(
                 _(
                     b"warning: import the patch as a normal revision\n"
                     b"(use --exact to import the patch as a merge)\n"
                 )
             )
     else:
         p1, p2 = parents
 
     n = None
     if update:
         if p1 != parents[0]:
             updatefunc(repo, p1.node())
         if p2 != parents[1]:
             repo.setparents(p1.node(), p2.node())
 
         if opts.get(b'exact') or importbranch:
             repo.dirstate.setbranch(branch or b'default')
 
         partial = opts.get(b'partial', False)
         files = set()
         try:
             patch.patch(
                 ui,
                 repo,
                 tmpname,
                 strip=strip,
                 prefix=prefix,
                 files=files,
                 eolmode=None,
                 similarity=sim / 100.0,
             )
         except error.PatchError as e:
             if not partial:
                 raise error.Abort(pycompat.bytestr(e))
             if partial:
                 rejects = True
 
         files = list(files)
         if nocommit:
             if message:
                 msgs.append(message)
         else:
             if opts.get(b'exact') or p2:
                 # If you got here, you either use --force and know what
                 # you are doing or used --exact or a merge patch while
                 # being updated to its first parent.
                 m = None
             else:
                 m = scmutil.matchfiles(repo, files or [])
             editform = mergeeditform(repo[None], b'import.normal')
             if opts.get(b'exact'):
                 editor = None
             else:
                 editor = getcommiteditor(
                     editform=editform, **pycompat.strkwargs(opts)
                 )
             extra = {}
             for idfunc in extrapreimport:
                 extrapreimportmap[idfunc](repo, patchdata, extra, opts)
             overrides = {}
             if partial:
                 overrides[(b'ui', b'allowemptycommit')] = True
             if opts.get(b'secret'):
                 overrides[(b'phases', b'new-commit')] = b'secret'
             with repo.ui.configoverride(overrides, b'import'):
                 n = repo.commit(
                     message, user, date, match=m, editor=editor, extra=extra
                 )
                 for idfunc in extrapostimport:
                     extrapostimportmap[idfunc](repo[n])
     else:
         if opts.get(b'exact') or importbranch:
             branch = branch or b'default'
         else:
             branch = p1.branch()
         store = patch.filestore()
         try:
             files = set()
             try:
                 patch.patchrepo(
                     ui,
                     repo,
                     p1,
                     store,
                     tmpname,
                     strip,
                     prefix,
                     files,
                     eolmode=None,
                 )
             except error.PatchError as e:
                 raise error.Abort(stringutil.forcebytestr(e))
             if opts.get(b'exact'):
                 editor = None
             else:
                 editor = getcommiteditor(editform=b'import.bypass')
             memctx = context.memctx(
                 repo,
                 (p1.node(), p2.node()),
                 message,
                 files=files,
                 filectxfn=store,
                 user=user,
                 date=date,
                 branch=branch,
                 editor=editor,
             )
 
             overrides = {}
             if opts.get(b'secret'):
                 overrides[(b'phases', b'new-commit')] = b'secret'
             with repo.ui.configoverride(overrides, b'import'):
                 n = memctx.commit()
         finally:
             store.close()
     if opts.get(b'exact') and nocommit:
         # --exact with --no-commit is still useful in that it does merge
         # and branch bits
         ui.warn(_(b"warning: can't check exact import with --no-commit\n"))
     elif opts.get(b'exact') and (not n or hex(n) != nodeid):
         raise error.Abort(_(b'patch is damaged or loses information'))
     msg = _(b'applied to working directory')
     if n:
         # i18n: refers to a short changeset id
         msg = _(b'created %s') % short(n)
     return msg, n, rejects
 
 
 # facility to let extensions include additional data in an exported patch
 # list of identifiers to be executed in order
 extraexport = []
 # mapping from identifier to actual export function
 # function as to return a string to be added to the header or None
 # it is given two arguments (sequencenumber, changectx)
 extraexportmap = {}
 
 
 def _exportsingle(repo, ctx, fm, match, switch_parent, seqno, diffopts):
     node = scmutil.binnode(ctx)
     parents = [p.node() for p in ctx.parents() if p]
     branch = ctx.branch()
     if switch_parent:
         parents.reverse()
 
     if parents:
         prev = parents[0]
     else:
         prev = repo.nullid
 
     fm.context(ctx=ctx)
     fm.plain(b'# HG changeset patch\n')
     fm.write(b'user', b'# User %s\n', ctx.user())
     fm.plain(b'# Date %d %d\n' % ctx.date())
     fm.write(b'date', b'#      %s\n', fm.formatdate(ctx.date()))
     fm.condwrite(
         branch and branch != b'default', b'branch', b'# Branch %s\n', branch
     )
     fm.write(b'node', b'# Node ID %s\n', hex(node))
     fm.plain(b'# Parent  %s\n' % hex(prev))
     if len(parents) > 1:
         fm.plain(b'# Parent  %s\n' % hex(parents[1]))
     fm.data(parents=fm.formatlist(pycompat.maplist(hex, parents), name=b'node'))
 
     # TODO: redesign extraexportmap function to support formatter
     for headerid in extraexport:
         header = extraexportmap[headerid](seqno, ctx)
         if header is not None:
             fm.plain(b'# %s\n' % header)
 
     fm.write(b'desc', b'%s\n', ctx.description().rstrip())
     fm.plain(b'\n')
 
     if fm.isplain():
         chunkiter = patch.diffui(repo, prev, node, match, opts=diffopts)
         for chunk, label in chunkiter:
             fm.plain(chunk, label=label)
     else:
         chunkiter = patch.diff(repo, prev, node, match, opts=diffopts)
         # TODO: make it structured?
         fm.data(diff=b''.join(chunkiter))
 
 
 def _exportfile(repo, revs, fm, dest, switch_parent, diffopts, match):
     """Export changesets to stdout or a single file"""
     for seqno, rev in enumerate(revs, 1):
         ctx = repo[rev]
         if not dest.startswith(b'<'):
             repo.ui.note(b"%s\n" % dest)
         fm.startitem()
         _exportsingle(repo, ctx, fm, match, switch_parent, seqno, diffopts)
 
 
 def _exportfntemplate(
     repo, revs, basefm, fntemplate, switch_parent, diffopts, match
 ):
     """Export changesets to possibly multiple files"""
     total = len(revs)
     revwidth = max(len(str(rev)) for rev in revs)
     filemap = util.sortdict()  # filename: [(seqno, rev), ...]
 
     for seqno, rev in enumerate(revs, 1):
         ctx = repo[rev]
         dest = makefilename(
             ctx, fntemplate, total=total, seqno=seqno, revwidth=revwidth
         )
         filemap.setdefault(dest, []).append((seqno, rev))
 
     for dest in filemap:
         with formatter.maybereopen(basefm, dest) as fm:
             repo.ui.note(b"%s\n" % dest)
             for seqno, rev in filemap[dest]:
                 fm.startitem()
                 ctx = repo[rev]
                 _exportsingle(
                     repo, ctx, fm, match, switch_parent, seqno, diffopts
                 )
 
 
 def _prefetchchangedfiles(repo, revs, match):
     allfiles = set()
     for rev in revs:
         for file in repo[rev].files():
             if not match or match(file):
                 allfiles.add(file)
     match = scmutil.matchfiles(repo, allfiles)
     revmatches = [(rev, match) for rev in revs]
     scmutil.prefetchfiles(repo, revmatches)
 
 
 def export(
     repo,
     revs,
     basefm,
     fntemplate=b'hg-%h.patch',
     switch_parent=False,
     opts=None,
     match=None,
 ):
     """export changesets as hg patches
 
     Args:
       repo: The repository from which we're exporting revisions.
       revs: A list of revisions to export as revision numbers.
       basefm: A formatter to which patches should be written.
       fntemplate: An optional string to use for generating patch file names.
       switch_parent: If True, show diffs against second parent when not nullid.
                      Default is false, which always shows diff against p1.
       opts: diff options to use for generating the patch.
       match: If specified, only export changes to files matching this matcher.
 
     Returns:
       Nothing.
 
     Side Effect:
       "HG Changeset Patch" data is emitted to one of the following
       destinations:
         fntemplate specified: Each rev is written to a unique file named using
                             the given template.
         Otherwise: All revs will be written to basefm.
     """
     _prefetchchangedfiles(repo, revs, match)
 
     if not fntemplate:
         _exportfile(
             repo, revs, basefm, b'<unnamed>', switch_parent, opts, match
         )
     else:
         _exportfntemplate(
             repo, revs, basefm, fntemplate, switch_parent, opts, match
         )
 
 
 def exportfile(repo, revs, fp, switch_parent=False, opts=None, match=None):
     """Export changesets to the given file stream"""
     _prefetchchangedfiles(repo, revs, match)
 
     dest = getattr(fp, 'name', b'<unnamed>')
     with formatter.formatter(repo.ui, fp, b'export', {}) as fm:
         _exportfile(repo, revs, fm, dest, switch_parent, opts, match)
 
 
 def showmarker(fm, marker, index=None):
     """utility function to display obsolescence marker in a readable way
 
     To be used by debug function."""
     if index is not None:
         fm.write(b'index', b'%i ', index)
     fm.write(b'prednode', b'%s ', hex(marker.prednode()))
     succs = marker.succnodes()
     fm.condwrite(
         succs,
         b'succnodes',
         b'%s ',
         fm.formatlist(map(hex, succs), name=b'node'),
     )
     fm.write(b'flag', b'%X ', marker.flags())
     parents = marker.parentnodes()
     if parents is not None:
         fm.write(
             b'parentnodes',
             b'{%s} ',
             fm.formatlist(map(hex, parents), name=b'node', sep=b', '),
         )
     fm.write(b'date', b'(%s) ', fm.formatdate(marker.date()))
     meta = marker.metadata().copy()
     meta.pop(b'date', None)
     smeta = pycompat.rapply(pycompat.maybebytestr, meta)
     fm.write(
         b'metadata', b'{%s}', fm.formatdict(smeta, fmt=b'%r: %r', sep=b', ')
     )
     fm.plain(b'\n')
 
 
 def finddate(ui, repo, date):
     """Find the tipmost changeset that matches the given date spec"""
     mrevs = repo.revs(b'date(%s)', date)
     try:
         rev = mrevs.max()
     except ValueError:
         raise error.InputError(_(b"revision matching date not found"))
 
     ui.status(
         _(b"found revision %d from %s\n")
         % (rev, dateutil.datestr(repo[rev].date()))
     )
     return b'%d' % rev
 
 
 def add(ui, repo, match, prefix, uipathfn, explicitonly, **opts):
     bad = []
 
     badfn = lambda x, y: bad.append(x) or match.bad(x, y)
     names = []
     wctx = repo[None]
     cca = None
     abort, warn = scmutil.checkportabilityalert(ui)
     if abort or warn:
         cca = scmutil.casecollisionauditor(ui, abort, repo.dirstate)
 
     match = repo.narrowmatch(match, includeexact=True)
     badmatch = matchmod.badmatch(match, badfn)
     dirstate = repo.dirstate
     # We don't want to just call wctx.walk here, since it would return a lot of
     # clean files, which we aren't interested in and takes time.
     for f in sorted(
         dirstate.walk(
             badmatch,
             subrepos=sorted(wctx.substate),
             unknown=True,
             ignored=False,
             full=False,
         )
     ):
         exact = match.exact(f)
         if exact or not explicitonly and f not in wctx and repo.wvfs.lexists(f):
             if cca:
                 cca(f)
             names.append(f)
             if ui.verbose or not exact:
                 ui.status(
                     _(b'adding %s\n') % uipathfn(f), label=b'ui.addremove.added'
                 )
 
     for subpath in sorted(wctx.substate):
         sub = wctx.sub(subpath)
         try:
             submatch = matchmod.subdirmatcher(subpath, match)
             subprefix = repo.wvfs.reljoin(prefix, subpath)
             subuipathfn = scmutil.subdiruipathfn(subpath, uipathfn)
             if opts.get('subrepos'):
                 bad.extend(
                     sub.add(ui, submatch, subprefix, subuipathfn, False, **opts)
                 )
             else:
                 bad.extend(
                     sub.add(ui, submatch, subprefix, subuipathfn, True, **opts)
                 )
         except error.LookupError:
             ui.status(
                 _(b"skipping missing subrepository: %s\n") % uipathfn(subpath)
             )
 
     if not opts.get('dry_run'):
         rejected = wctx.add(names, prefix)
         bad.extend(f for f in rejected if f in match.files())
     return bad
 
 
 def addwebdirpath(repo, serverpath, webconf):
     webconf[serverpath] = repo.root
     repo.ui.debug(b'adding %s = %s\n' % (serverpath, repo.root))
 
     for r in repo.revs(b'filelog("path:.hgsub")'):
         ctx = repo[r]
         for subpath in ctx.substate:
             ctx.sub(subpath).addwebdirpath(serverpath, webconf)
 
 
 def forget(
     ui, repo, match, prefix, uipathfn, explicitonly, dryrun, interactive
 ):
     if dryrun and interactive:
         raise error.InputError(
             _(b"cannot specify both --dry-run and --interactive")
         )
     bad = []
     badfn = lambda x, y: bad.append(x) or match.bad(x, y)
     wctx = repo[None]
     forgot = []
 
     s = repo.status(match=matchmod.badmatch(match, badfn), clean=True)
     forget = sorted(s.modified + s.added + s.deleted + s.clean)
     if explicitonly:
         forget = [f for f in forget if match.exact(f)]
 
     for subpath in sorted(wctx.substate):
         sub = wctx.sub(subpath)
         submatch = matchmod.subdirmatcher(subpath, match)
         subprefix = repo.wvfs.reljoin(prefix, subpath)
         subuipathfn = scmutil.subdiruipathfn(subpath, uipathfn)
         try:
             subbad, subforgot = sub.forget(
                 submatch,
                 subprefix,
                 subuipathfn,
                 dryrun=dryrun,
                 interactive=interactive,
             )
             bad.extend([subpath + b'/' + f for f in subbad])
             forgot.extend([subpath + b'/' + f for f in subforgot])
         except error.LookupError:
             ui.status(
                 _(b"skipping missing subrepository: %s\n") % uipathfn(subpath)
             )
 
     if not explicitonly:
         for f in match.files():
             if f not in repo.dirstate and not repo.wvfs.isdir(f):
                 if f not in forgot:
                     if repo.wvfs.exists(f):
                         # Don't complain if the exact case match wasn't given.
                         # But don't do this until after checking 'forgot', so
                         # that subrepo files aren't normalized, and this op is
                         # purely from data cached by the status walk above.
                         if repo.dirstate.normalize(f) in repo.dirstate:
                             continue
                         ui.warn(
                             _(
                                 b'not removing %s: '
                                 b'file is already untracked\n'
                             )
                             % uipathfn(f)
                         )
                     bad.append(f)
 
     if interactive:
         responses = _(
             b'[Ynsa?]'
             b'$$ &Yes, forget this file'
             b'$$ &No, skip this file'
             b'$$ &Skip remaining files'
             b'$$ Include &all remaining files'
             b'$$ &? (display help)'
         )
         for filename in forget[:]:
             r = ui.promptchoice(
                 _(b'forget %s %s') % (uipathfn(filename), responses)
             )
             if r == 4:  # ?
                 while r == 4:
                     for c, t in ui.extractchoices(responses)[1]:
                         ui.write(b'%s - %s\n' % (c, encoding.lower(t)))
                     r = ui.promptchoice(
                         _(b'forget %s %s') % (uipathfn(filename), responses)
                     )
             if r == 0:  # yes
                 continue
             elif r == 1:  # no
                 forget.remove(filename)
             elif r == 2:  # Skip
                 fnindex = forget.index(filename)
                 del forget[fnindex:]
                 break
             elif r == 3:  # All
                 break
 
     for f in forget:
         if ui.verbose or not match.exact(f) or interactive:
             ui.status(
                 _(b'removing %s\n') % uipathfn(f), label=b'ui.addremove.removed'
             )
 
     if not dryrun:
         rejected = wctx.forget(forget, prefix)
         bad.extend(f for f in rejected if f in match.files())
         forgot.extend(f for f in forget if f not in rejected)
     return bad, forgot
 
 
 def files(ui, ctx, m, uipathfn, fm, fmt, subrepos):
     ret = 1
 
     needsfctx = ui.verbose or {b'size', b'flags'} & fm.datahint()
     if fm.isplain() and not needsfctx:
         # Fast path. The speed-up comes from skipping the formatter, and batching
         # calls to ui.write.
         buf = []
         for f in ctx.matches(m):
             buf.append(fmt % uipathfn(f))
             if len(buf) > 100:
                 ui.write(b''.join(buf))
                 del buf[:]
             ret = 0
         if buf:
             ui.write(b''.join(buf))
     else:
         for f in ctx.matches(m):
             fm.startitem()
             fm.context(ctx=ctx)
             if needsfctx:
                 fc = ctx[f]
                 fm.write(b'size flags', b'% 10d % 1s ', fc.size(), fc.flags())
             fm.data(path=f)
             fm.plain(fmt % uipathfn(f))
             ret = 0
 
     for subpath in sorted(ctx.substate):
         submatch = matchmod.subdirmatcher(subpath, m)
         subuipathfn = scmutil.subdiruipathfn(subpath, uipathfn)
         if subrepos or m.exact(subpath) or any(submatch.files()):
             sub = ctx.sub(subpath)
             try:
                 recurse = m.exact(subpath) or subrepos
                 if (
                     sub.printfiles(ui, submatch, subuipathfn, fm, fmt, recurse)
                     == 0
                 ):
                     ret = 0
             except error.LookupError:
                 ui.status(
                     _(b"skipping missing subrepository: %s\n")
                     % uipathfn(subpath)
                 )
 
     return ret
 
 
 def remove(
     ui, repo, m, prefix, uipathfn, after, force, subrepos, dryrun, warnings=None
 ):
     ret = 0
     s = repo.status(match=m, clean=True)
     modified, added, deleted, clean = s.modified, s.added, s.deleted, s.clean
 
     wctx = repo[None]
 
     if warnings is None:
         warnings = []
         warn = True
     else:
         warn = False
 
     subs = sorted(wctx.substate)
     progress = ui.makeprogress(
         _(b'searching'), total=len(subs), unit=_(b'subrepos')
     )
     for subpath in subs:
         submatch = matchmod.subdirmatcher(subpath, m)
         subprefix = repo.wvfs.reljoin(prefix, subpath)
         subuipathfn = scmutil.subdiruipathfn(subpath, uipathfn)
         if subrepos or m.exact(subpath) or any(submatch.files()):
             progress.increment()
             sub = wctx.sub(subpath)
             try:
                 if sub.removefiles(
                     submatch,
                     subprefix,
                     subuipathfn,
                     after,
                     force,
                     subrepos,
                     dryrun,
                     warnings,
                 ):
                     ret = 1
             except error.LookupError:
                 warnings.append(
                     _(b"skipping missing subrepository: %s\n")
                     % uipathfn(subpath)
                 )
     progress.complete()
 
     # warn about failure to delete explicit files/dirs
     deleteddirs = pathutil.dirs(deleted)
     files = m.files()
     progress = ui.makeprogress(
         _(b'deleting'), total=len(files), unit=_(b'files')
     )
     for f in files:
 
         def insubrepo():
             for subpath in wctx.substate:
                 if f.startswith(subpath + b'/'):
                     return True
             return False
 
         progress.increment()
         isdir = f in deleteddirs or wctx.hasdir(f)
         if f in repo.dirstate or isdir or f == b'.' or insubrepo() or f in subs:
             continue
 
         if repo.wvfs.exists(f):
             if repo.wvfs.isdir(f):
                 warnings.append(
                     _(b'not removing %s: no tracked files\n') % uipathfn(f)
                 )
             else:
                 warnings.append(
                     _(b'not removing %s: file is untracked\n') % uipathfn(f)
                 )
         # missing files will generate a warning elsewhere
         ret = 1
     progress.complete()
 
     if force:
         list = modified + deleted + clean + added
     elif after:
         list = deleted
         remaining = modified + added + clean
         progress = ui.makeprogress(
             _(b'skipping'), total=len(remaining), unit=_(b'files')
         )
         for f in remaining:
             progress.increment()
             if ui.verbose or (f in files):
                 warnings.append(
                     _(b'not removing %s: file still exists\n') % uipathfn(f)
                 )
             ret = 1
         progress.complete()
     else:
         list = deleted + clean
         progress = ui.makeprogress(
             _(b'skipping'), total=(len(modified) + len(added)), unit=_(b'files')
         )
         for f in modified:
             progress.increment()
             warnings.append(
                 _(
                     b'not removing %s: file is modified (use -f'
                     b' to force removal)\n'
                 )
                 % uipathfn(f)
             )
             ret = 1
         for f in added:
             progress.increment()
             warnings.append(
                 _(
                     b"not removing %s: file has been marked for add"
                     b" (use 'hg forget' to undo add)\n"
                 )
                 % uipathfn(f)
             )
             ret = 1
         progress.complete()
 
     list = sorted(list)
     progress = ui.makeprogress(
         _(b'deleting'), total=len(list), unit=_(b'files')
     )
     for f in list:
         if ui.verbose or not m.exact(f):
             progress.increment()
             ui.status(
                 _(b'removing %s\n') % uipathfn(f), label=b'ui.addremove.removed'
             )
     progress.complete()
 
     if not dryrun:
         with repo.wlock():
             if not after:
                 for f in list:
                     if f in added:
                         continue  # we never unlink added files on remove
                     rmdir = repo.ui.configbool(
                         b'experimental', b'removeemptydirs'
                     )
                     repo.wvfs.unlinkpath(f, ignoremissing=True, rmdir=rmdir)
             repo[None].forget(list)
 
     if warn:
         for warning in warnings:
             ui.warn(warning)
 
     return ret
 
 
 def _catfmtneedsdata(fm):
     return not fm.datahint() or b'data' in fm.datahint()
 
 
 def _updatecatformatter(fm, ctx, matcher, path, decode):
     """Hook for adding data to the formatter used by ``hg cat``.
 
     Extensions (e.g., lfs) can wrap this to inject keywords/data, but must call
     this method first."""
 
     # data() can be expensive to fetch (e.g. lfs), so don't fetch it if it
     # wasn't requested.
     data = b''
     if _catfmtneedsdata(fm):
         data = ctx[path].data()
         if decode:
             data = ctx.repo().wwritedata(path, data)
     fm.startitem()
     fm.context(ctx=ctx)
     fm.write(b'data', b'%s', data)
     fm.data(path=path)
 
 
 def cat(ui, repo, ctx, matcher, basefm, fntemplate, prefix, **opts):
     err = 1
     opts = pycompat.byteskwargs(opts)
 
     def write(path):
         filename = None
         if fntemplate:
             filename = makefilename(
                 ctx, fntemplate, pathname=os.path.join(prefix, path)
             )
             # attempt to create the directory if it does not already exist
             try:
                 os.makedirs(os.path.dirname(filename))
             except OSError:
                 pass
         with formatter.maybereopen(basefm, filename) as fm:
             _updatecatformatter(fm, ctx, matcher, path, opts.get(b'decode'))
 
     # Automation often uses hg cat on single files, so special case it
     # for performance to avoid the cost of parsing the manifest.
     if len(matcher.files()) == 1 and not matcher.anypats():
         file = matcher.files()[0]
         mfl = repo.manifestlog
         mfnode = ctx.manifestnode()
         try:
             if mfnode and mfl[mfnode].find(file)[0]:
                 if _catfmtneedsdata(basefm):
                     scmutil.prefetchfiles(repo, [(ctx.rev(), matcher)])
                 write(file)
                 return 0
         except KeyError:
             pass
 
     if _catfmtneedsdata(basefm):
         scmutil.prefetchfiles(repo, [(ctx.rev(), matcher)])
 
     for abs in ctx.walk(matcher):
         write(abs)
         err = 0
 
     uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
     for subpath in sorted(ctx.substate):
         sub = ctx.sub(subpath)
         try:
             submatch = matchmod.subdirmatcher(subpath, matcher)
             subprefix = os.path.join(prefix, subpath)
             if not sub.cat(
                 submatch,
                 basefm,
                 fntemplate,
                 subprefix,
                 **pycompat.strkwargs(opts)
             ):
                 err = 0
         except error.RepoLookupError:
             ui.status(
                 _(b"skipping missing subrepository: %s\n") % uipathfn(subpath)
             )
 
     return err
 
 
 def commit(ui, repo, commitfunc, pats, opts):
     '''commit the specified files or all outstanding changes'''
     date = opts.get(b'date')
     if date:
         opts[b'date'] = dateutil.parsedate(date)
     message = logmessage(ui, opts)
     matcher = scmutil.match(repo[None], pats, opts)
 
     dsguard = None
     # extract addremove carefully -- this function can be called from a command
     # that doesn't support addremove
     if opts.get(b'addremove'):
         dsguard = dirstateguard.dirstateguard(repo, b'commit')
     with dsguard or util.nullcontextmanager():
         if dsguard:
             relative = scmutil.anypats(pats, opts)
             uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=relative)
             if scmutil.addremove(repo, matcher, b"", uipathfn, opts) != 0:
                 raise error.Abort(
                     _(b"failed to mark all new/missing files as added/removed")
                 )
 
         return commitfunc(ui, repo, message, matcher, opts)
 
 
 def samefile(f, ctx1, ctx2):
     if f in ctx1.manifest():
         a = ctx1.filectx(f)
         if f in ctx2.manifest():
             b = ctx2.filectx(f)
             return not a.cmp(b) and a.flags() == b.flags()
         else:
             return False
     else:
         return f not in ctx2.manifest()
 
 
 def amend(ui, repo, old, extra, pats, opts):
     # avoid cycle context -> subrepo -> cmdutil
     from . import context
 
     # amend will reuse the existing user if not specified, but the obsolete
     # marker creation requires that the current user's name is specified.
     if obsolete.isenabled(repo, obsolete.createmarkersopt):
         ui.username()  # raise exception if username not set
 
     ui.note(_(b'amending changeset %s\n') % old)
     base = old.p1()
 
     with repo.wlock(), repo.lock(), repo.transaction(b'amend'):
         # Participating changesets:
         #
         # wctx     o - workingctx that contains changes from working copy
         #          |   to go into amending commit
         #          |
         # old      o - changeset to amend
         #          |
         # base     o - first parent of the changeset to amend
         wctx = repo[None]
 
         # Copy to avoid mutating input
         extra = extra.copy()
         # Update extra dict from amended commit (e.g. to preserve graft
         # source)
         extra.update(old.extra())
 
         # Also update it from the from the wctx
         extra.update(wctx.extra())
 
         # date-only change should be ignored?
         datemaydiffer = resolve_commit_options(ui, opts)
         opts = pycompat.byteskwargs(opts)
 
         date = old.date()
         if opts.get(b'date'):
             date = dateutil.parsedate(opts.get(b'date'))
         user = opts.get(b'user') or old.user()
 
         if len(old.parents()) > 1:
             # ctx.files() isn't reliable for merges, so fall back to the
             # slower repo.status() method
             st = base.status(old)
             files = set(st.modified) | set(st.added) | set(st.removed)
         else:
             files = set(old.files())
 
         # add/remove the files to the working copy if the "addremove" option
         # was specified.
         matcher = scmutil.match(wctx, pats, opts)
         relative = scmutil.anypats(pats, opts)
         uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=relative)
         if opts.get(b'addremove') and scmutil.addremove(
             repo, matcher, b"", uipathfn, opts
         ):
             raise error.Abort(
                 _(b"failed to mark all new/missing files as added/removed")
             )
 
         # Check subrepos. This depends on in-place wctx._status update in
         # subrepo.precommit(). To minimize the risk of this hack, we do
         # nothing if .hgsub does not exist.
         if b'.hgsub' in wctx or b'.hgsub' in old:
             subs, commitsubs, newsubstate = subrepoutil.precommit(
                 ui, wctx, wctx._status, matcher
             )
             # amend should abort if commitsubrepos is enabled
             assert not commitsubs
             if subs:
                 subrepoutil.writestate(repo, newsubstate)
 
         ms = mergestatemod.mergestate.read(repo)
         mergeutil.checkunresolved(ms)
 
         filestoamend = {f for f in wctx.files() if matcher(f)}
 
         changes = len(filestoamend) > 0
         if changes:
             # Recompute copies (avoid recording a -> b -> a)
             copied = copies.pathcopies(base, wctx, matcher)
             if old.p2:
                 copied.update(copies.pathcopies(old.p2(), wctx, matcher))
 
             # Prune files which were reverted by the updates: if old
             # introduced file X and the file was renamed in the working
             # copy, then those two files are the same and
             # we can discard X from our list of files. Likewise if X
             # was removed, it's no longer relevant. If X is missing (aka
             # deleted), old X must be preserved.
             files.update(filestoamend)
             files = [
                 f
                 for f in files
                 if (f not in filestoamend or not samefile(f, wctx, base))
             ]
 
             def filectxfn(repo, ctx_, path):
                 try:
                     # If the file being considered is not amongst the files
                     # to be amended, we should return the file context from the
                     # old changeset. This avoids issues when only some files in
                     # the working copy are being amended but there are also
                     # changes to other files from the old changeset.
                     if path not in filestoamend:
                         return old.filectx(path)
 
                     # Return None for removed files.
                     if path in wctx.removed():
                         return None
 
                     fctx = wctx[path]
                     flags = fctx.flags()
                     mctx = context.memfilectx(
                         repo,
                         ctx_,
                         fctx.path(),
                         fctx.data(),
                         islink=b'l' in flags,
                         isexec=b'x' in flags,
                         copysource=copied.get(path),
                     )
                     return mctx
                 except KeyError:
                     return None
 
         else:
             ui.note(_(b'copying changeset %s to %s\n') % (old, base))
 
             # Use version of files as in the old cset
             def filectxfn(repo, ctx_, path):
                 try:
                     return old.filectx(path)
                 except KeyError:
                     return None
 
         # See if we got a message from -m or -l, if not, open the editor with
         # the message of the changeset to amend.
         message = logmessage(ui, opts)
 
         editform = mergeeditform(old, b'commit.amend')
 
         if not message:
             message = old.description()
             # Default if message isn't provided and --edit is not passed is to
             # invoke editor, but allow --no-edit. If somehow we don't have any
             # description, let's always start the editor.
             doedit = not message or opts.get(b'edit') in [True, None]
         else:
             # Default if message is provided is to not invoke editor, but allow
             # --edit.
             doedit = opts.get(b'edit') is True
         editor = getcommiteditor(edit=doedit, editform=editform)
 
         pureextra = extra.copy()
         extra[b'amend_source'] = old.hex()
 
         new = context.memctx(
             repo,
             parents=[base.node(), old.p2().node()],
             text=message,
             files=files,
             filectxfn=filectxfn,
             user=user,
             date=date,
             extra=extra,
             editor=editor,
         )
 
         newdesc = changelog.stripdesc(new.description())
         if (
             (not changes)
             and newdesc == old.description()
             and user == old.user()
             and (date == old.date() or datemaydiffer)
             and pureextra == old.extra()
         ):
             # nothing changed. continuing here would create a new node
             # anyway because of the amend_source noise.
             #
             # This not what we expect from amend.
             return old.node()
 
         commitphase = None
         if opts.get(b'secret'):
             commitphase = phases.secret
         newid = repo.commitctx(new)
         ms.reset()
 
         # Reroute the working copy parent to the new changeset
         repo.setparents(newid, repo.nullid)
 
         # Fixing the dirstate because localrepo.commitctx does not update
         # it. This is rather convenient because we did not need to update
         # the dirstate for all the files in the new commit which commitctx
         # could have done if it updated the dirstate. Now, we can
         # selectively update the dirstate only for the amended files.
         dirstate = repo.dirstate
 
         # Update the state of the files which were added and modified in the
         # amend to "normal" in the dirstate. We need to use "normallookup" since
         # the files may have changed since the command started; using "normal"
         # would mark them as clean but with uncommitted contents.
         normalfiles = set(wctx.modified() + wctx.added()) & filestoamend
         for f in normalfiles:
             dirstate.normallookup(f)
 
         # Update the state of files which were removed in the amend
         # to "removed" in the dirstate.
         removedfiles = set(wctx.removed()) & filestoamend
         for f in removedfiles:
             dirstate.drop(f)
 
         mapping = {old.node(): (newid,)}
         obsmetadata = None
         if opts.get(b'note'):
             obsmetadata = {b'note': encoding.fromlocal(opts[b'note'])}
         backup = ui.configbool(b'rewrite', b'backup-bundle')
         scmutil.cleanupnodes(
             repo,
             mapping,
             b'amend',
             metadata=obsmetadata,
             fixphase=True,
             targetphase=commitphase,
             backup=backup,
         )
 
     return newid
 
 
 def commiteditor(repo, ctx, subs, editform=b''):
     if ctx.description():
         return ctx.description()
     return commitforceeditor(
         repo, ctx, subs, editform=editform, unchangedmessagedetection=True
     )
 
 
 def commitforceeditor(
     repo,
     ctx,
     subs,
     finishdesc=None,
     extramsg=None,
     editform=b'',
     unchangedmessagedetection=False,
 ):
     if not extramsg:
         extramsg = _(b"Leave message empty to abort commit.")
 
     forms = [e for e in editform.split(b'.') if e]
     forms.insert(0, b'changeset')
     templatetext = None
     while forms:
         ref = b'.'.join(forms)
         if repo.ui.config(b'committemplate', ref):
             templatetext = committext = buildcommittemplate(
                 repo, ctx, subs, extramsg, ref
             )
             break
         forms.pop()
     else:
         committext = buildcommittext(repo, ctx, subs, extramsg)
 
     # run editor in the repository root
     olddir = encoding.getcwd()
     os.chdir(repo.root)
 
     # make in-memory changes visible to external process
     tr = repo.currenttransaction()
     repo.dirstate.write(tr)
     pending = tr and tr.writepending() and repo.root
 
     editortext = repo.ui.edit(
         committext,
         ctx.user(),
         ctx.extra(),
         editform=editform,
         pending=pending,
         repopath=repo.path,
         action=b'commit',
     )
     text = editortext
 
     # strip away anything below this special string (used for editors that want
     # to display the diff)
     stripbelow = re.search(_linebelow, text, flags=re.MULTILINE)
     if stripbelow:
         text = text[: stripbelow.start()]
 
     text = re.sub(b"(?m)^HG:.*(\n|$)", b"", text)
     os.chdir(olddir)
 
     if finishdesc:
         text = finishdesc(text)
     if not text.strip():
         raise error.InputError(_(b"empty commit message"))
     if unchangedmessagedetection and editortext == templatetext:
         raise error.InputError(_(b"commit message unchanged"))
 
     return text
 
 
 def buildcommittemplate(repo, ctx, subs, extramsg, ref):
     ui = repo.ui
     spec = formatter.reference_templatespec(ref)
     t = logcmdutil.changesettemplater(ui, repo, spec)
     t.t.cache.update(
         (k, templater.unquotestring(v))
         for k, v in repo.ui.configitems(b'committemplate')
     )
 
     if not extramsg:
         extramsg = b''  # ensure that extramsg is string
 
     ui.pushbuffer()
     t.show(ctx, extramsg=extramsg)
     return ui.popbuffer()
 
 
 def hgprefix(msg):
     return b"\n".join([b"HG: %s" % a for a in msg.split(b"\n") if a])
 
 
 def buildcommittext(repo, ctx, subs, extramsg):
     edittext = []
     modified, added, removed = ctx.modified(), ctx.added(), ctx.removed()
     if ctx.description():
         edittext.append(ctx.description())
     edittext.append(b"")
     edittext.append(b"")  # Empty line between message and comments.
     edittext.append(
         hgprefix(
             _(
                 b"Enter commit message."
                 b"  Lines beginning with 'HG:' are removed."
             )
         )
     )
     edittext.append(hgprefix(extramsg))
     edittext.append(b"HG: --")
     edittext.append(hgprefix(_(b"user: %s") % ctx.user()))
     if ctx.p2():
         edittext.append(hgprefix(_(b"branch merge")))
     if ctx.branch():
         edittext.append(hgprefix(_(b"branch '%s'") % ctx.branch()))
     if bookmarks.isactivewdirparent(repo):
         edittext.append(hgprefix(_(b"bookmark '%s'") % repo._activebookmark))
     edittext.extend([hgprefix(_(b"subrepo %s") % s) for s in subs])
     edittext.extend([hgprefix(_(b"added %s") % f) for f in added])
     edittext.extend([hgprefix(_(b"changed %s") % f) for f in modified])
     edittext.extend([hgprefix(_(b"removed %s") % f) for f in removed])
     if not added and not modified and not removed:
         edittext.append(hgprefix(_(b"no files changed")))
     edittext.append(b"")
 
     return b"\n".join(edittext)
 
 
 def commitstatus(repo, node, branch, bheads=None, tip=None, opts=None):
     if opts is None:
         opts = {}
     ctx = repo[node]
     parents = ctx.parents()
 
     if tip is not None and repo.changelog.tip() == tip:
         # avoid reporting something like "committed new head" when
         # recommitting old changesets, and issue a helpful warning
         # for most instances
         repo.ui.warn(_(b"warning: commit already existed in the repository!\n"))
     elif (
         not opts.get(b'amend')
         and bheads
         and node not in bheads
         and not any(
             p.node() in bheads and p.branch() == branch for p in parents
         )
     ):
         repo.ui.status(_(b'created new head\n'))
         # The message is not printed for initial roots. For the other
         # changesets, it is printed in the following situations:
         #
         # Par column: for the 2 parents with ...
         #   N: null or no parent
         #   B: parent is on another named branch
         #   C: parent is a regular non head changeset
         #   H: parent was a branch head of the current branch
         # Msg column: whether we print "created new head" message
         # In the following, it is assumed that there already exists some
         # initial branch heads of the current branch, otherwise nothing is
         # printed anyway.
         #
         # Par Msg Comment
         # N N  y  additional topo root
         #
         # B N  y  additional branch root
         # C N  y  additional topo head
         # H N  n  usual case
         #
         # B B  y  weird additional branch root
         # C B  y  branch merge
         # H B  n  merge with named branch
         #
         # C C  y  additional head from merge
         # C H  n  merge with a head
         #
         # H H  n  head merge: head count decreases
 
     if not opts.get(b'close_branch'):
         for r in parents:
             if r.closesbranch() and r.branch() == branch:
                 repo.ui.status(
                     _(b'reopening closed branch head %d\n') % r.rev()
                 )
 
     if repo.ui.debugflag:
         repo.ui.write(
             _(b'committed changeset %d:%s\n') % (ctx.rev(), ctx.hex())
         )
     elif repo.ui.verbose:
         repo.ui.write(_(b'committed changeset %d:%s\n') % (ctx.rev(), ctx))
 
 
 def postcommitstatus(repo, pats, opts):
     return repo.status(match=scmutil.match(repo[None], pats, opts))
 
 
 def revert(ui, repo, ctx, *pats, **opts):
     opts = pycompat.byteskwargs(opts)
     parent, p2 = repo.dirstate.parents()
     node = ctx.node()
 
     mf = ctx.manifest()
     if node == p2:
         parent = p2
 
     # need all matching names in dirstate and manifest of target rev,
     # so have to walk both. do not print errors if files exist in one
     # but not other. in both cases, filesets should be evaluated against
     # workingctx to get consistent result (issue4497). this means 'set:**'
     # cannot be used to select missing files from target rev.
 
     # `names` is a mapping for all elements in working copy and target revision
     # The mapping is in the form:
     #   <abs path in repo> -> (<path from CWD>, <exactly specified by matcher?>)
     names = {}
     uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
 
     with repo.wlock():
         ## filling of the `names` mapping
         # walk dirstate to fill `names`
 
         interactive = opts.get(b'interactive', False)
         wctx = repo[None]
         m = scmutil.match(wctx, pats, opts)
 
         # we'll need this later
         targetsubs = sorted(s for s in wctx.substate if m(s))
 
         if not m.always():
             matcher = matchmod.badmatch(m, lambda x, y: False)
             for abs in wctx.walk(matcher):
                 names[abs] = m.exact(abs)
 
             # walk target manifest to fill `names`
 
             def badfn(path, msg):
                 if path in names:
                     return
                 if path in ctx.substate:
                     return
                 path_ = path + b'/'
                 for f in names:
                     if f.startswith(path_):
                         return
                 ui.warn(b"%s: %s\n" % (uipathfn(path), msg))
 
             for abs in ctx.walk(matchmod.badmatch(m, badfn)):
                 if abs not in names:
                     names[abs] = m.exact(abs)
 
             # Find status of all file in `names`.
             m = scmutil.matchfiles(repo, names)
 
             changes = repo.status(
                 node1=node, match=m, unknown=True, ignored=True, clean=True
             )
         else:
             changes = repo.status(node1=node, match=m)
             for kind in changes:
                 for abs in kind:
                     names[abs] = m.exact(abs)
 
             m = scmutil.matchfiles(repo, names)
 
         modified = set(changes.modified)
         added = set(changes.added)
         removed = set(changes.removed)
         _deleted = set(changes.deleted)
         unknown = set(changes.unknown)
         unknown.update(changes.ignored)
         clean = set(changes.clean)
         modadded = set()
 
         # We need to account for the state of the file in the dirstate,
         # even when we revert against something else than parent. This will
         # slightly alter the behavior of revert (doing back up or not, delete
         # or just forget etc).
         if parent == node:
             dsmodified = modified
             dsadded = added
             dsremoved = removed
             # store all local modifications, useful later for rename detection
             localchanges = dsmodified | dsadded
             modified, added, removed = set(), set(), set()
         else:
             changes = repo.status(node1=parent, match=m)
             dsmodified = set(changes.modified)
             dsadded = set(changes.added)
             dsremoved = set(changes.removed)
             # store all local modifications, useful later for rename detection
             localchanges = dsmodified | dsadded
 
             # only take into account for removes between wc and target
             clean |= dsremoved - removed
             dsremoved &= removed
             # distinct between dirstate remove and other
             removed -= dsremoved
 
             modadded = added & dsmodified
             added -= modadded
 
             # tell newly modified apart.
             dsmodified &= modified
             dsmodified |= modified & dsadded  # dirstate added may need backup
             modified -= dsmodified
 
             # We need to wait for some post-processing to update this set
             # before making the distinction. The dirstate will be used for
             # that purpose.
             dsadded = added
 
         # in case of merge, files that are actually added can be reported as
         # modified, we need to post process the result
         if p2 != repo.nullid:
             mergeadd = set(dsmodified)
             for path in dsmodified:
                 if path in mf:
                     mergeadd.remove(path)
             dsadded |= mergeadd
             dsmodified -= mergeadd
 
         # if f is a rename, update `names` to also revert the source
         for f in localchanges:
             src = repo.dirstate.copied(f)
             # XXX should we check for rename down to target node?
             if src and src not in names and repo.dirstate[src] == b'r':
                 dsremoved.add(src)
                 names[src] = True
 
         # determine the exact nature of the deleted changesets
         deladded = set(_deleted)
         for path in _deleted:
             if path in mf:
                 deladded.remove(path)
         deleted = _deleted - deladded
 
         # distinguish between file to forget and the other
         added = set()
         for abs in dsadded:
             if repo.dirstate[abs] != b'a':
                 added.add(abs)
         dsadded -= added
 
         for abs in deladded:
             if repo.dirstate[abs] == b'a':
                 dsadded.add(abs)
         deladded -= dsadded
 
         # For files marked as removed, we check if an unknown file is present at
         # the same path. If a such file exists it may need to be backed up.
         # Making the distinction at this stage helps have simpler backup
         # logic.
         removunk = set()
         for abs in removed:
             target = repo.wjoin(abs)
             if os.path.lexists(target):
                 removunk.add(abs)
         removed -= removunk
 
         dsremovunk = set()
         for abs in dsremoved:
             target = repo.wjoin(abs)
             if os.path.lexists(target):
                 dsremovunk.add(abs)
         dsremoved -= dsremovunk
 
         # action to be actually performed by revert
         # (<list of file>, message>) tuple
         actions = {
             b'revert': ([], _(b'reverting %s\n')),
             b'add': ([], _(b'adding %s\n')),
             b'remove': ([], _(b'removing %s\n')),
             b'drop': ([], _(b'removing %s\n')),
             b'forget': ([], _(b'forgetting %s\n')),
             b'undelete': ([], _(b'undeleting %s\n')),
             b'noop': (None, _(b'no changes needed to %s\n')),
             b'unknown': (None, _(b'file not managed: %s\n')),
         }
 
         # "constant" that convey the backup strategy.
         # All set to `discard` if `no-backup` is set do avoid checking
         # no_backup lower in the code.
         # These values are ordered for comparison purposes
         backupinteractive = 3  # do backup if interactively modified
         backup = 2  # unconditionally do backup
         check = 1  # check if the existing file differs from target
         discard = 0  # never do backup
         if opts.get(b'no_backup'):
             backupinteractive = backup = check = discard
         if interactive:
             dsmodifiedbackup = backupinteractive
         else:
             dsmodifiedbackup = backup
         tobackup = set()
 
         backupanddel = actions[b'remove']
         if not opts.get(b'no_backup'):
             backupanddel = actions[b'drop']
 
         disptable = (
             # dispatch table:
             #   file state
             #   action
             #   make backup
             ## Sets that results that will change file on disk
             # Modified compared to target, no local change
             (modified, actions[b'revert'], discard),
             # Modified compared to target, but local file is deleted
             (deleted, actions[b'revert'], discard),
             # Modified compared to target, local change
             (dsmodified, actions[b'revert'], dsmodifiedbackup),
             # Added since target
             (added, actions[b'remove'], discard),
             # Added in working directory
             (dsadded, actions[b'forget'], discard),
             # Added since target, have local modification
             (modadded, backupanddel, backup),
             # Added since target but file is missing in working directory
             (deladded, actions[b'drop'], discard),
             # Removed since  target, before working copy parent
             (removed, actions[b'add'], discard),
             # Same as `removed` but an unknown file exists at the same path
             (removunk, actions[b'add'], check),
             # Removed since targe, marked as such in working copy parent
             (dsremoved, actions[b'undelete'], discard),
             # Same as `dsremoved` but an unknown file exists at the same path
             (dsremovunk, actions[b'undelete'], check),
             ## the following sets does not result in any file changes
             # File with no modification
             (clean, actions[b'noop'], discard),
             # Existing file, not tracked anywhere
             (unknown, actions[b'unknown'], discard),
         )
 
         for abs, exact in sorted(names.items()):
             # target file to be touch on disk (relative to cwd)
             target = repo.wjoin(abs)
             # search the entry in the dispatch table.
             # if the file is in any of these sets, it was touched in the working
             # directory parent and we are sure it needs to be reverted.
             for table, (xlist, msg), dobackup in disptable:
                 if abs not in table:
                     continue
                 if xlist is not None:
                     xlist.append(abs)
                     if dobackup:
                         # If in interactive mode, don't automatically create
                         # .orig files (issue4793)
                         if dobackup == backupinteractive:
                             tobackup.add(abs)
                         elif backup <= dobackup or wctx[abs].cmp(ctx[abs]):
                             absbakname = scmutil.backuppath(ui, repo, abs)
                             bakname = os.path.relpath(
                                 absbakname, start=repo.root
                             )
                             ui.note(
                                 _(b'saving current version of %s as %s\n')
                                 % (uipathfn(abs), uipathfn(bakname))
                             )
                             if not opts.get(b'dry_run'):
                                 if interactive:
                                     util.copyfile(target, absbakname)
                                 else:
                                     util.rename(target, absbakname)
                     if opts.get(b'dry_run'):
                         if ui.verbose or not exact:
                             ui.status(msg % uipathfn(abs))
                 elif exact:
                     ui.warn(msg % uipathfn(abs))
                 break
 
         if not opts.get(b'dry_run'):
             needdata = (b'revert', b'add', b'undelete')
             oplist = [actions[name][0] for name in needdata]
             prefetch = scmutil.prefetchfiles
             matchfiles = scmutil.matchfiles(
                 repo, [f for sublist in oplist for f in sublist]
             )
             prefetch(
                 repo,
                 [(ctx.rev(), matchfiles)],
             )
             match = scmutil.match(repo[None], pats)
             _performrevert(
                 repo,
                 ctx,
                 names,
                 uipathfn,
                 actions,
                 match,
                 interactive,
                 tobackup,
             )
 
         if targetsubs:
             # Revert the subrepos on the revert list
             for sub in targetsubs:
                 try:
                     wctx.sub(sub).revert(
                         ctx.substate[sub], *pats, **pycompat.strkwargs(opts)
                     )
                 except KeyError:
                     raise error.Abort(
                         b"subrepository '%s' does not exist in %s!"
                         % (sub, short(ctx.node()))
                     )
 
 
 def _performrevert(
     repo,
     ctx,
     names,
     uipathfn,
     actions,
     match,
     interactive=False,
     tobackup=None,
 ):
     """function that actually perform all the actions computed for revert
 
     This is an independent function to let extension to plug in and react to
     the imminent revert.
 
     Make sure you have the working directory locked when calling this function.
     """
     parent, p2 = repo.dirstate.parents()
     node = ctx.node()
     excluded_files = []
 
     def checkout(f):
         fc = ctx[f]
         repo.wwrite(f, fc.data(), fc.flags())
 
     def doremove(f):
         try:
             rmdir = repo.ui.configbool(b'experimental', b'removeemptydirs')
             repo.wvfs.unlinkpath(f, rmdir=rmdir)
         except OSError:
             pass
         repo.dirstate.remove(f)
 
     def prntstatusmsg(action, f):
         exact = names[f]
         if repo.ui.verbose or not exact:
             repo.ui.status(actions[action][1] % uipathfn(f))
 
     audit_path = pathutil.pathauditor(repo.root, cached=True)
     for f in actions[b'forget'][0]:
         if interactive:
             choice = repo.ui.promptchoice(
                 _(b"forget added file %s (Yn)?$$ &Yes $$ &No") % uipathfn(f)
             )
             if choice == 0:
                 prntstatusmsg(b'forget', f)
                 repo.dirstate.drop(f)
             else:
                 excluded_files.append(f)
         else:
             prntstatusmsg(b'forget', f)
             repo.dirstate.drop(f)
     for f in actions[b'remove'][0]:
         audit_path(f)
         if interactive:
             choice = repo.ui.promptchoice(
                 _(b"remove added file %s (Yn)?$$ &Yes $$ &No") % uipathfn(f)
             )
             if choice == 0:
                 prntstatusmsg(b'remove', f)
                 doremove(f)
             else:
                 excluded_files.append(f)
         else:
             prntstatusmsg(b'remove', f)
             doremove(f)
     for f in actions[b'drop'][0]:
         audit_path(f)
         prntstatusmsg(b'drop', f)
         repo.dirstate.remove(f)
 
     normal = None
     if node == parent:
         # We're reverting to our parent. If possible, we'd like status
         # to report the file as clean. We have to use normallookup for
         # merges to avoid losing information about merged/dirty files.
         if p2 != repo.nullid:
             normal = repo.dirstate.normallookup
         else:
             normal = repo.dirstate.normal
 
     newlyaddedandmodifiedfiles = set()
     if interactive:
         # Prompt the user for changes to revert
         torevert = [f for f in actions[b'revert'][0] if f not in excluded_files]
         m = scmutil.matchfiles(repo, torevert)
         diffopts = patch.difffeatureopts(
             repo.ui,
             whitespace=True,
             section=b'commands',
             configprefix=b'revert.interactive.',
         )
         diffopts.nodates = True
         diffopts.git = True
         operation = b'apply'
         if node == parent:
             if repo.ui.configbool(
                 b'experimental', b'revert.interactive.select-to-keep'
             ):
                 operation = b'keep'
             else:
                 operation = b'discard'
 
         if operation == b'apply':
             diff = patch.diff(repo, None, ctx.node(), m, opts=diffopts)
         else:
             diff = patch.diff(repo, ctx.node(), None, m, opts=diffopts)
-        originalchunks = patch.parsepatch(diff)
+        original_headers = patch.parsepatch(diff)
 
         try:
 
             chunks, opts = recordfilter(
-                repo.ui, originalchunks, match, operation=operation
+                repo.ui, original_headers, match, operation=operation
             )
             if operation == b'discard':
                 chunks = patch.reversehunks(chunks)
 
         except error.PatchError as err:
             raise error.Abort(_(b'error parsing patch: %s') % err)
 
         # FIXME: when doing an interactive revert of a copy, there's no way of
         # performing a partial revert of the added file, the only option is
         # "remove added file <name> (Yn)?", so we don't need to worry about the
         # alsorestore value. Ideally we'd be able to partially revert
         # copied/renamed files.
-        newlyaddedandmodifiedfiles, unusedalsorestore = newandmodified(
-            chunks, originalchunks
-        )
+        newlyaddedandmodifiedfiles, unusedalsorestore = newandmodified(chunks)
         if tobackup is None:
             tobackup = set()
         # Apply changes
         fp = stringio()
         # chunks are serialized per file, but files aren't sorted
         for f in sorted({c.header.filename() for c in chunks if ishunk(c)}):
             prntstatusmsg(b'revert', f)
         files = set()
         for c in chunks:
             if ishunk(c):
                 abs = c.header.filename()
                 # Create a backup file only if this hunk should be backed up
                 if c.header.filename() in tobackup:
                     target = repo.wjoin(abs)
                     bakname = scmutil.backuppath(repo.ui, repo, abs)
                     util.copyfile(target, bakname)
                     tobackup.remove(abs)
                 if abs not in files:
                     files.add(abs)
                     if operation == b'keep':
                         checkout(abs)
             c.write(fp)
         dopatch = fp.tell()
         fp.seek(0)
         if dopatch:
             try:
                 patch.internalpatch(repo.ui, repo, fp, 1, eolmode=None)
             except error.PatchError as err:
                 raise error.Abort(pycompat.bytestr(err))
         del fp
     else:
         for f in actions[b'revert'][0]:
             prntstatusmsg(b'revert', f)
             checkout(f)
             if normal:
                 normal(f)
 
     for f in actions[b'add'][0]:
         # Don't checkout modified files, they are already created by the diff
         if f not in newlyaddedandmodifiedfiles:
             prntstatusmsg(b'add', f)
             checkout(f)
             repo.dirstate.add(f)
 
     normal = repo.dirstate.normallookup
     if node == parent and p2 == repo.nullid:
         normal = repo.dirstate.normal
     for f in actions[b'undelete'][0]:
         if interactive:
             choice = repo.ui.promptchoice(
                 _(b"add back removed file %s (Yn)?$$ &Yes $$ &No") % f
             )
             if choice == 0:
                 prntstatusmsg(b'undelete', f)
                 checkout(f)
                 normal(f)
             else:
                 excluded_files.append(f)
         else:
             prntstatusmsg(b'undelete', f)
             checkout(f)
             normal(f)
 
     copied = copies.pathcopies(repo[parent], ctx)
 
     for f in (
         actions[b'add'][0] + actions[b'undelete'][0] + actions[b'revert'][0]
     ):
         if f in copied:
             repo.dirstate.copy(copied[f], f)
 
 
 # a list of (ui, repo, otherpeer, opts, missing) functions called by
 # commands.outgoing.  "missing" is "missing" of the result of
 # "findcommonoutgoing()"
 outgoinghooks = util.hooks()
 
 # a list of (ui, repo) functions called by commands.summary
 summaryhooks = util.hooks()
 
 # a list of (ui, repo, opts, changes) functions called by commands.summary.
 #
 # functions should return tuple of booleans below, if 'changes' is None:
 #  (whether-incomings-are-needed, whether-outgoings-are-needed)
 #
 # otherwise, 'changes' is a tuple of tuples below:
 #  - (sourceurl, sourcebranch, sourcepeer, incoming)
 #  - (desturl,   destbranch,   destpeer,   outgoing)
 summaryremotehooks = util.hooks()
 
 
 def checkunfinished(repo, commit=False, skipmerge=False):
     """Look for an unfinished multistep operation, like graft, and abort
     if found. It's probably good to check this right before
     bailifchanged().
     """
     # Check for non-clearable states first, so things like rebase will take
     # precedence over update.
     for state in statemod._unfinishedstates:
         if (
             state._clearable
             or (commit and state._allowcommit)
             or state._reportonly
         ):
             continue
         if state.isunfinished(repo):
             raise error.StateError(state.msg(), hint=state.hint())
 
     for s in statemod._unfinishedstates:
         if (
             not s._clearable
             or (commit and s._allowcommit)
             or (s._opname == b'merge' and skipmerge)
             or s._reportonly
         ):
             continue
         if s.isunfinished(repo):
             raise error.StateError(s.msg(), hint=s.hint())
 
 
 def clearunfinished(repo):
     """Check for unfinished operations (as above), and clear the ones
     that are clearable.
     """
     for state in statemod._unfinishedstates:
         if state._reportonly:
             continue
         if not state._clearable and state.isunfinished(repo):
             raise error.StateError(state.msg(), hint=state.hint())
 
     for s in statemod._unfinishedstates:
         if s._opname == b'merge' or s._reportonly:
             continue
         if s._clearable and s.isunfinished(repo):
             util.unlink(repo.vfs.join(s._fname))
 
 
 def getunfinishedstate(repo):
     """Checks for unfinished operations and returns statecheck object
     for it"""
     for state in statemod._unfinishedstates:
         if state.isunfinished(repo):
             return state
     return None
 
 
 def howtocontinue(repo):
     """Check for an unfinished operation and return the command to finish
     it.
 
     statemod._unfinishedstates list is checked for an unfinished operation
     and the corresponding message to finish it is generated if a method to
     continue is supported by the operation.
 
     Returns a (msg, warning) tuple. 'msg' is a string and 'warning' is
     a boolean.
     """
     contmsg = _(b"continue: %s")
     for state in statemod._unfinishedstates:
         if not state._continueflag:
             continue
         if state.isunfinished(repo):
             return contmsg % state.continuemsg(), True
     if repo[None].dirty(missing=True, merge=False, branch=False):
         return contmsg % _(b"hg commit"), False
     return None, None
 
 
 def checkafterresolved(repo):
     """Inform the user about the next action after completing hg resolve
 
     If there's a an unfinished operation that supports continue flag,
     howtocontinue will yield repo.ui.warn as the reporter.
 
     Otherwise, it will yield repo.ui.note.
     """
     msg, warning = howtocontinue(repo)
     if msg is not None:
         if warning:
             repo.ui.warn(b"%s\n" % msg)
         else:
             repo.ui.note(b"%s\n" % msg)
 
 
 def wrongtooltocontinue(repo, task):
     """Raise an abort suggesting how to properly continue if there is an
     active task.
 
     Uses howtocontinue() to find the active task.
 
     If there's no task (repo.ui.note for 'hg commit'), it does not offer
     a hint.
     """
     after = howtocontinue(repo)
     hint = None
     if after[1]:
         hint = after[0]
     raise error.StateError(_(b'no %s in progress') % task, hint=hint)
 
 
 def abortgraft(ui, repo, graftstate):
     """abort the interrupted graft and rollbacks to the state before interrupted
     graft"""
     if not graftstate.exists():
         raise error.StateError(_(b"no interrupted graft to abort"))
     statedata = readgraftstate(repo, graftstate)
     newnodes = statedata.get(b'newnodes')
     if newnodes is None:
         # and old graft state which does not have all the data required to abort
         # the graft
         raise error.Abort(_(b"cannot abort using an old graftstate"))
 
     # changeset from which graft operation was started
     if len(newnodes) > 0:
         startctx = repo[newnodes[0]].p1()
     else:
         startctx = repo[b'.']
     # whether to strip or not
     cleanup = False
 
     if newnodes:
         newnodes = [repo[r].rev() for r in newnodes]
         cleanup = True
         # checking that none of the newnodes turned public or is public
         immutable = [c for c in newnodes if not repo[c].mutable()]
         if immutable:
             repo.ui.warn(
                 _(b"cannot clean up public changesets %s\n")
                 % b', '.join(bytes(repo[r]) for r in immutable),
                 hint=_(b"see 'hg help phases' for details"),
             )
             cleanup = False
 
         # checking that no new nodes are created on top of grafted revs
         desc = set(repo.changelog.descendants(newnodes))
         if desc - set(newnodes):
             repo.ui.warn(
                 _(
                     b"new changesets detected on destination "
                     b"branch, can't strip\n"
                 )
             )
             cleanup = False
 
         if cleanup:
             with repo.wlock(), repo.lock():
                 mergemod.clean_update(startctx)
                 # stripping the new nodes created
                 strippoints = [
                     c.node() for c in repo.set(b"roots(%ld)", newnodes)
                 ]
                 repair.strip(repo.ui, repo, strippoints, backup=False)
 
     if not cleanup:
         # we don't update to the startnode if we can't strip
         startctx = repo[b'.']
         mergemod.clean_update(startctx)
 
     ui.status(_(b"graft aborted\n"))
     ui.status(_(b"working directory is now at %s\n") % startctx.hex()[:12])
     graftstate.delete()
     return 0
 
 
 def readgraftstate(repo, graftstate):
     # type: (Any, statemod.cmdstate) -> Dict[bytes, Any]
     """read the graft state file and return a dict of the data stored in it"""
     try:
         return graftstate.read()
     except error.CorruptedState:
         nodes = repo.vfs.read(b'graftstate').splitlines()
         return {b'nodes': nodes}
 
 
 def hgabortgraft(ui, repo):
     """abort logic for aborting graft using 'hg abort'"""
     with repo.wlock():
         graftstate = statemod.cmdstate(repo, b'graftstate')
         return abortgraft(ui, repo, graftstate)

tests/test-commit-interactive.t

@@ -1,1984 +1,2022
 Set up a repo
 
   $ cat <<EOF >> $HGRCPATH
   > [ui]
   > interactive = true
   > [extensions]
   > record =
   > EOF
 
   $ hg init a
   $ cd a
 
 Select no files
 
   $ touch empty-rw
   $ hg add empty-rw
 
   $ hg record --config ui.interactive=false
   abort: running non-interactively, use commit instead
   [255]
   $ hg commit -i --config ui.interactive=false
   abort: running non-interactively
   [10]
   $ hg commit -i empty-rw<<EOF
   > n
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
   abort: empty commit message
   [10]
 
   $ hg tip -p
   changeset:   -1:000000000000
   tag:         tip
   user:        
   date:        Thu Jan 01 00:00:00 1970 +0000
   
   
 
 Select files but no hunks
 
   $ hg commit -i  empty-rw<<EOF
   > y
   > n
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
   abort: empty commit message
   [10]
 
   $ hg tip -p
   changeset:   -1:000000000000
   tag:         tip
   user:        
   date:        Thu Jan 01 00:00:00 1970 +0000
   
   
 
 Abort for untracked
 
   $ touch untracked
   $ hg commit -i -m should-fail empty-rw untracked
   abort: untracked: file not tracked!
   [10]
   $ rm untracked
 
 Record empty file
 
   $ hg commit -i -d '0 0' -m empty empty-rw<<EOF
   > y
   > EOF
   diff --git a/empty-rw b/empty-rw
   new file mode 100644
 
   $ hg tip -p
   changeset:   0:c0708cf4e46e
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     empty
   
   
 
 Summary shows we updated to the new cset
 
   $ hg summary
   parent: 0:c0708cf4e46e tip
    empty
   branch: default
   commit: (clean)
   update: (current)
   phases: 1 draft
 
 Rename empty file
 
   $ hg mv empty-rw empty-rename
   $ hg commit -i -d '1 0' -m rename<<EOF
   > y
   > EOF
   diff --git a/empty-rw b/empty-rename
   rename from empty-rw
   rename to empty-rename
   examine changes to 'empty-rw' and 'empty-rename'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   1:d695e8dcb197
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     rename
   
   
 
 Copy empty file
 
   $ hg cp empty-rename empty-copy
   $ hg commit -i -d '2 0' -m copy<<EOF
   > y
   > EOF
   diff --git a/empty-rename b/empty-copy
   copy from empty-rename
   copy to empty-copy
   examine changes to 'empty-rename' and 'empty-copy'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   2:1d4b90bea524
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     copy
   
   
 
 Delete empty file
 
   $ hg rm empty-copy
   $ hg commit -i -d '3 0' -m delete<<EOF
   > y
   > EOF
   diff --git a/empty-copy b/empty-copy
   deleted file mode 100644
   examine changes to 'empty-copy'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   3:b39a238f01a1
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:03 1970 +0000
   summary:     delete
   
   
 
 Add binary file
 
   $ hg bundle --type v1 --base -2 tip.bundle
   1 changesets found
   $ hg add tip.bundle
   $ hg commit -i -d '4 0' -m binary<<EOF
   > y
   > EOF
   diff --git a/tip.bundle b/tip.bundle
   new file mode 100644
   this is a binary file
   examine changes to 'tip.bundle'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   4:ad816da3711e
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:04 1970 +0000
   summary:     binary
   
   diff -r b39a238f01a1 -r ad816da3711e tip.bundle
   Binary file tip.bundle has changed
   
 
 Change binary file
 
   $ hg bundle --base -2 --type v1 tip.bundle
   1 changesets found
   $ hg commit -i -d '5 0' -m binary-change<<EOF
   > y
   > EOF
   diff --git a/tip.bundle b/tip.bundle
   this modifies a binary file (all or nothing)
   examine changes to 'tip.bundle'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   5:dccd6f3eb485
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:05 1970 +0000
   summary:     binary-change
   
   diff -r ad816da3711e -r dccd6f3eb485 tip.bundle
   Binary file tip.bundle has changed
   
 
 Rename and change binary file
 
   $ hg mv tip.bundle top.bundle
   $ hg bundle --base -2 --type v1 top.bundle
   1 changesets found
   $ hg commit -i -d '6 0' -m binary-change-rename<<EOF
   > y
   > EOF
   diff --git a/tip.bundle b/top.bundle
   rename from tip.bundle
   rename to top.bundle
   this modifies a binary file (all or nothing)
   examine changes to 'tip.bundle' and 'top.bundle'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   6:7fa44105f5b3
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:06 1970 +0000
   summary:     binary-change-rename
   
   diff -r dccd6f3eb485 -r 7fa44105f5b3 tip.bundle
   Binary file tip.bundle has changed
   diff -r dccd6f3eb485 -r 7fa44105f5b3 top.bundle
   Binary file top.bundle has changed
   
 
 Add plain file
 
   $ for i in 1 2 3 4 5 6 7 8 9 10; do
   >     echo $i >> plain
   > done
 
   $ hg add plain
   $ hg commit -i -d '7 0' -m plain plain<<EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   new file mode 100644
   @@ -0,0 +1,10 @@
   +1
   +2
   +3
   +4
   +5
   +6
   +7
   +8
   +9
   +10
   record this change to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   $ hg tip -p
   changeset:   7:11fb457c1be4
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:07 1970 +0000
   summary:     plain
   
   diff -r 7fa44105f5b3 -r 11fb457c1be4 plain
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:07 1970 +0000
   @@ -0,0 +1,10 @@
   +1
   +2
   +3
   +4
   +5
   +6
   +7
   +8
   +9
   +10
   
 Modify end of plain file with username unset
 
   $ echo 11 >> plain
   $ unset HGUSER
   $ hg commit -i --config ui.username= -d '8 0' -m end plain
   abort: no username supplied
   (use 'hg config --edit' to set your username)
   [255]
 
 
 Modify end of plain file, also test that diffopts are accounted for
 
   $ HGUSER="test"
   $ export HGUSER
   $ hg commit -i --config diff.showfunc=true -d '8 0' -m end plain <<EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
   @@ -8,3 +8,4 @@ 7
    8
    9
    10
   +11
   record this change to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
 Modify end of plain file, no EOL
 
   $ hg tip --template '{node}' >> plain
   $ hg commit -i -d '9 0' -m noeol plain <<EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
   @@ -9,3 +9,4 @@ 8
    9
    10
    11
   +7264f99c5f5ff3261504828afa4fb4d406c3af54
   \ No newline at end of file
   record this change to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
 Record showfunc should preserve function across sections
 
   $ cat > f1.py <<NO_CHECK_EOF
   > def annotate(ui, repo, *pats, **opts):
   >     """show changeset information by line for each file
   > 
   >     List changes in files, showing the revision id responsible for
   >     each line.
   > 
   >     This command is useful for discovering when a change was made and
   >     by whom.
   > 
   >     If you include -f/-u/-d, the revision number is suppressed unless
   >     you also include -the revision number is suppressed unless
   >     you also include -n.
   > 
   >     Without the -a/--text option, annotate will avoid processing files
   >     it detects as binary. With -a, annotate will annotate the file
   >     anyway, although the results will probably be neither useful
   >     nor desirable.
   > 
   >     Returns 0 on success.
   >     """
   >     return 0
   > def archive(ui, repo, dest, **opts):
   >     '''create an unversioned archive of a repository revision
   > 
   >     By default, the revision used is the parent of the working
   >     directory; use -r/--rev to specify a different revision.
   > 
   >     The archive type is automatically detected based on file
   >     extension (to override, use -t/--type).
   > 
   >     .. container:: verbose
   > 
   >     Valid types are:
   > NO_CHECK_EOF
   $ hg add f1.py
   $ hg commit -m funcs
   $ cat > f1.py <<NO_CHECK_EOF
   > def annotate(ui, repo, *pats, **opts):
   >     """show changeset information by line for each file
   > 
   >     List changes in files, showing the revision id responsible for
   >     each line
   > 
   >     This command is useful for discovering when a change was made and
   >     by whom.
   > 
   >     Without the -a/--text option, annotate will avoid processing files
   >     it detects as binary. With -a, annotate will annotate the file
   >     anyway, although the results will probably be neither useful
   >     nor desirable.
   > 
   >     Returns 0 on success.
   >     """
   >     return 0
   > def archive(ui, repo, dest, **opts):
   >     '''create an unversioned archive of a repository revision
   > 
   >     By default, the revision used is the parent of the working
   >     directory; use -r/--rev to specify a different revision.
   > 
   >     The archive type is automatically detected based on file
   >     extension (or override using -t/--type).
   > 
   >     .. container:: verbose
   > 
   >     Valid types are:
   > NO_CHECK_EOF
   $ hg commit -i -m interactive <<EOF
   > y
   > y
   > y
   > y
   > EOF
   diff --git a/f1.py b/f1.py
   3 hunks, 6 lines changed
   examine changes to 'f1.py'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -2,8 +2,8 @@ def annotate(ui, repo, *pats, **opts):
        """show changeset information by line for each file
    
        List changes in files, showing the revision id responsible for
   -    each line.
   +    each line
    
        This command is useful for discovering when a change was made and
        by whom.
    
   record change 1/3 to 'f1.py'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -6,11 +6,7 @@ def annotate(ui, repo, *pats, **opts):
    
        This command is useful for discovering when a change was made and
        by whom.
    
   -    If you include -f/-u/-d, the revision number is suppressed unless
   -    you also include -the revision number is suppressed unless
   -    you also include -n.
   -
        Without the -a/--text option, annotate will avoid processing files
        it detects as binary. With -a, annotate will annotate the file
        anyway, although the results will probably be neither useful
   record change 2/3 to 'f1.py'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -26,7 +22,7 @@ def archive(ui, repo, dest, **opts):
        directory; use -r/--rev to specify a different revision.
    
        The archive type is automatically detected based on file
   -    extension (to override, use -t/--type).
   +    extension (or override using -t/--type).
    
        .. container:: verbose
    
   record change 3/3 to 'f1.py'?
   (enter ? for help) [Ynesfdaq?] y
   
 
 Modify end of plain file, add EOL
 
   $ echo >> plain
   $ echo 1 > plain2
   $ hg add plain2
   $ hg commit -i -d '10 0' -m eol plain plain2 <<EOF
   > y
   > y
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   1 hunks, 1 lines changed
   @@ -9,4 +9,4 @@ 8
    9
    10
    11
   -7264f99c5f5ff3261504828afa4fb4d406c3af54
   \ No newline at end of file
   +7264f99c5f5ff3261504828afa4fb4d406c3af54
   record change 1/2 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   diff --git a/plain2 b/plain2
   new file mode 100644
   @@ -0,0 +1,1 @@
   +1
   record change 2/2 to 'plain2'?
   (enter ? for help) [Ynesfdaq?] y
   
 Modify beginning, trim end, record both, add another file to test
 changes numbering
 
   $ rm plain
   $ for i in 2 2 3 4 5 6 7 8 9 10; do
   >   echo $i >> plain
   > done
   $ echo 2 >> plain2
 
   $ hg commit -i -d '10 0' -m begin-and-end plain plain2 <<EOF
   > y
   > y
   > y
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   2 hunks, 3 lines changed
   @@ -1,4 +1,4 @@
   -1
   +2
    2
    3
    4
   record change 1/3 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -8,5 +8,3 @@ 7
    8
    9
    10
   -11
   -7264f99c5f5ff3261504828afa4fb4d406c3af54
   record change 2/3 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   diff --git a/plain2 b/plain2
   1 hunks, 1 lines changed
   @@ -1,1 +1,2 @@
    1
   +2
   record change 3/3 to 'plain2'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   13:f941910cff62
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:10 1970 +0000
   summary:     begin-and-end
   
   diff -r 33abe24d946c -r f941910cff62 plain
   --- a/plain	Thu Jan 01 00:00:10 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:10 1970 +0000
   @@ -1,4 +1,4 @@
   -1
   +2
    2
    3
    4
   @@ -8,5 +8,3 @@
    8
    9
    10
   -11
   -7264f99c5f5ff3261504828afa4fb4d406c3af54
   diff -r 33abe24d946c -r f941910cff62 plain2
   --- a/plain2	Thu Jan 01 00:00:10 1970 +0000
   +++ b/plain2	Thu Jan 01 00:00:10 1970 +0000
   @@ -1,1 +1,2 @@
    1
   +2
   
 
 Trim beginning, modify end
 
   $ rm plain
   > for i in 4 5 6 7 8 9 10.new; do
   >   echo $i >> plain
   > done
 
 Record end
 
   $ hg commit -i -d '11 0' -m end-only plain <<EOF
   > n
   > y
   > EOF
   diff --git a/plain b/plain
   2 hunks, 4 lines changed
   @@ -1,9 +1,6 @@
   -2
   -2
   -3
    4
    5
    6
    7
    8
    9
   record change 1/2 to 'plain'?
   (enter ? for help) [Ynesfdaq?] n
   
   @@ -4,7 +1,7 @@
    4
    5
    6
    7
    8
    9
   -10
   +10.new
   record change 2/2 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   14:4915f538659b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:11 1970 +0000
   summary:     end-only
   
   diff -r f941910cff62 -r 4915f538659b plain
   --- a/plain	Thu Jan 01 00:00:10 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:11 1970 +0000
   @@ -7,4 +7,4 @@
    7
    8
    9
   -10
   +10.new
   
 
 Record beginning
 
   $ hg commit -i -d '12 0' -m begin-only plain <<EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   1 hunks, 3 lines changed
   @@ -1,6 +1,3 @@
   -2
   -2
   -3
    4
    5
    6
   record this change to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   15:1b1f93d4b94b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:12 1970 +0000
   summary:     begin-only
   
   diff -r 4915f538659b -r 1b1f93d4b94b plain
   --- a/plain	Thu Jan 01 00:00:11 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:12 1970 +0000
   @@ -1,6 +1,3 @@
   -2
   -2
   -3
    4
    5
    6
   
 
 Add to beginning, trim from end
 
   $ rm plain
   $ for i in 1 2 3 4 5 6 7 8 9; do
   >  echo $i >> plain
   > done
 
 Record end
 
   $ hg commit -i --traceback -d '13 0' -m end-again plain<<EOF
   > n
   > y
   > EOF
   diff --git a/plain b/plain
   2 hunks, 4 lines changed
   @@ -1,6 +1,9 @@
   +1
   +2
   +3
    4
    5
    6
    7
    8
    9
   record change 1/2 to 'plain'?
   (enter ? for help) [Ynesfdaq?] n
   
   @@ -1,7 +4,6 @@
    4
    5
    6
    7
    8
    9
   -10.new
   record change 2/2 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
 Add to beginning, middle, end
 
   $ rm plain
   $ for i in 1 2 3 4 5 5.new 5.reallynew 6 7 8 9 10 11; do
   >   echo $i >> plain
   > done
 
 Record beginning, middle, and test that format-breaking diffopts are ignored
 
   $ hg commit -i --config diff.noprefix=True -d '14 0' -m middle-only plain <<EOF
   > y
   > y
   > n
   > EOF
   diff --git a/plain b/plain
   3 hunks, 7 lines changed
   @@ -1,2 +1,5 @@
   +1
   +2
   +3
    4
    5
   record change 1/3 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,6 +4,8 @@
    4
    5
   +5.new
   +5.reallynew
    6
    7
    8
    9
   record change 2/3 to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -3,4 +8,6 @@
    6
    7
    8
    9
   +10
   +11
   record change 3/3 to 'plain'?
   (enter ? for help) [Ynesfdaq?] n
   
 
   $ hg tip -p
   changeset:   17:41cf3f5c55ae
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:14 1970 +0000
   summary:     middle-only
   
   diff -r a69d252246e1 -r 41cf3f5c55ae plain
   --- a/plain	Thu Jan 01 00:00:13 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:14 1970 +0000
   @@ -1,5 +1,10 @@
   +1
   +2
   +3
    4
    5
   +5.new
   +5.reallynew
    6
    7
    8
   
 
 Record end
 
   $ hg commit -i -d '15 0' -m end-only plain <<EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain
   1 hunks, 2 lines changed
   @@ -9,3 +9,5 @@ 6
    7
    8
    9
   +10
   +11
   record this change to 'plain'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   18:58a72f46bc24
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:15 1970 +0000
   summary:     end-only
   
   diff -r 41cf3f5c55ae -r 58a72f46bc24 plain
   --- a/plain	Thu Jan 01 00:00:14 1970 +0000
   +++ b/plain	Thu Jan 01 00:00:15 1970 +0000
   @@ -9,3 +9,5 @@
    7
    8
    9
   +10
   +11
   
 Interactive commit can name a directory instead of files (issue6131)
 
   $ mkdir subdir
   $ echo a > subdir/a
   $ hg ci -d '16 0' -i subdir -Amsubdir <<EOF
   > y
   > y
   > EOF
   adding subdir/a
   diff --git a/subdir/a b/subdir/a
   new file mode 100644
   examine changes to 'subdir/a'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -0,0 +1,1 @@
   +a
   record this change to 'subdir/a'?
   (enter ? for help) [Ynesfdaq?] y
   
   $ cd subdir
 
   $ echo a >> a
   $ hg commit -i -d '16 0' -m subdir-change a <<EOF
   > y
   > y
   > EOF
   diff --git a/subdir/a b/subdir/a
   1 hunks, 1 lines changed
   @@ -1,1 +1,2 @@
    a
   +a
   record this change to 'subdir/a'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip -p
   changeset:   20:e0f6b99f6c49
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:16 1970 +0000
   summary:     subdir-change
   
   diff -r abd26b51de37 -r e0f6b99f6c49 subdir/a
   --- a/subdir/a	Thu Jan 01 00:00:16 1970 +0000
   +++ b/subdir/a	Thu Jan 01 00:00:16 1970 +0000
   @@ -1,1 +1,2 @@
    a
   +a
   
 
   $ echo a > f1
   $ echo b > f2
   $ hg add f1 f2
 
   $ hg ci -mz -d '17 0'
 
   $ echo a >> f1
   $ echo b >> f2
 
 Help, quit
 
   $ hg commit -i <<EOF
   > ?
   > q
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] ?
   
   y - yes, record this change
   n - no, skip this change
   e - edit this change manually
   s - skip remaining changes to this file
   f - record remaining changes to this file
   d - done, skip remaining changes and files
   a - record all changes to all remaining files
   q - quit, recording no changes
   ? - ? (display help)
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] q
   
   abort: user quit
   [250]
 
 Patterns
 
   $ hg commit -i 'glob:f*' << EOF
   > y
   > n
   > y
   > n
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,1 +1,2 @@
    a
   +a
   record change 1/2 to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] n
   
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
   examine changes to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,1 +1,2 @@
    b
   +b
   record change 2/2 to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] n
   
   no changes to record
   [1]
 
 #if gettext
 
 Test translated help message
 
 str.lower() instead of encoding.lower(str) on translated message might
 make message meaningless, because some encoding uses 0x41(A) - 0x5a(Z)
 as the second or later byte of multi-byte character.
 
 For example, "\x8bL\x98^" (translation of "record" in ja_JP.cp932)
 contains 0x4c (L). str.lower() replaces 0x4c(L) by 0x6c(l) and this
 replacement makes message meaningless.
 
 This tests that translated help message is lower()-ed correctly.
 
   $ LANGUAGE=ja
   $ export LANGUAGE
 
   $ cat > $TESTTMP/escape.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import (
   >     pycompat,
   > )
   > from mercurial.utils import (
   >     procutil,
   > )
   > def escape(c):
   >     o = ord(c)
   >     if o < 0x80:
   >         return c
   >     else:
   >         return br'\x%02x' % o # escape char setting MSB
   > for l in procutil.stdin:
   >     procutil.stdout.write(
   >         b''.join(escape(c) for c in pycompat.iterbytestr(l)))
   > EOF
 
   $ hg commit -i --encoding cp932 2>&1 <<EOF | "$PYTHON" $TESTTMP/escape.py | grep '^y - '
   > ?
   > q
   > EOF
   y - \x82\xb1\x82\xcc\x95\xcf\x8dX\x82\xf0\x8bL\x98^(yes)
 
   $ LANGUAGE=
 #endif
 
 Skip
 
   $ hg commit -i <<EOF
   > s
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] s
   
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
   examine changes to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] abort: response expected
   [255]
 
 No
 
   $ hg commit -i <<EOF
   > n
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] n
   
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
   examine changes to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] abort: response expected
   [255]
 
 f, quit
 
   $ hg commit -i <<EOF
   > f
   > q
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] f
   
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
   examine changes to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] q
   
   abort: user quit
   [250]
 
 s, all
 
   $ hg commit -i -d '18 0' -mx <<EOF
   > s
   > a
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] s
   
   diff --git a/subdir/f2 b/subdir/f2
   1 hunks, 1 lines changed
   examine changes to 'subdir/f2'?
   (enter ? for help) [Ynesfdaq?] a
   
 
   $ hg tip -p
   changeset:   22:6afbbefacf35
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:18 1970 +0000
   summary:     x
   
   diff -r b73c401c693c -r 6afbbefacf35 subdir/f2
   --- a/subdir/f2	Thu Jan 01 00:00:17 1970 +0000
   +++ b/subdir/f2	Thu Jan 01 00:00:18 1970 +0000
   @@ -1,1 +1,2 @@
    b
   +b
   
 
 f
 
   $ hg commit -i -d '19 0' -my <<EOF
   > f
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] f
   
 
   $ hg tip -p
   changeset:   23:715028a33949
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:19 1970 +0000
   summary:     y
   
   diff -r 6afbbefacf35 -r 715028a33949 subdir/f1
   --- a/subdir/f1	Thu Jan 01 00:00:18 1970 +0000
   +++ b/subdir/f1	Thu Jan 01 00:00:19 1970 +0000
   @@ -1,1 +1,2 @@
    a
   +a
   
 
 #if execbit
 
 Preserve chmod +x
 
   $ chmod +x f1
   $ echo a >> f1
   $ hg commit -i -d '20 0' -mz <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   old mode 100644
   new mode 100755
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,2 +1,3 @@
    a
    a
   +a
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   24:db967c1e5884
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:20 1970 +0000
   summary:     z
   
   diff --git a/subdir/f1 b/subdir/f1
   old mode 100644
   new mode 100755
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -1,2 +1,3 @@
    a
    a
   +a
   
 
 Preserve execute permission on original
 
   $ echo b >> f1
   $ hg commit -i -d '21 0' -maa <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,4 @@
    a
    a
    a
   +b
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   25:88903aef81c3
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:21 1970 +0000
   summary:     aa
   
   diff --git a/subdir/f1 b/subdir/f1
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -1,3 +1,4 @@
    a
    a
    a
   +b
   
 
 Preserve chmod -x
 
   $ chmod -x f1
   $ echo c >> f1
   $ hg commit -i -d '22 0' -mab <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   old mode 100755
   new mode 100644
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -2,3 +2,4 @@ a
    a
    a
    b
   +c
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   26:7af84b6cf560
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:22 1970 +0000
   summary:     ab
   
   diff --git a/subdir/f1 b/subdir/f1
   old mode 100755
   new mode 100644
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -2,3 +2,4 @@
    a
    a
    b
   +c
   
 
 #else
 
 Slightly bogus tests to get almost same repo structure as when x bit is used
 - but with different hashes.
 
 Mock "Preserve chmod +x"
 
   $ echo a >> f1
   $ hg commit -i -d '20 0' -mz <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,2 +1,3 @@
    a
    a
   +a
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   24:c26cfe2c4eb0
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:20 1970 +0000
   summary:     z
   
   diff --git a/subdir/f1 b/subdir/f1
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -1,2 +1,3 @@
    a
    a
   +a
   
 
 Mock "Preserve execute permission on original"
 
   $ echo b >> f1
   $ hg commit -i -d '21 0' -maa <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,4 @@
    a
    a
    a
   +b
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   25:a48d2d60adde
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:21 1970 +0000
   summary:     aa
   
   diff --git a/subdir/f1 b/subdir/f1
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -1,3 +1,4 @@
    a
    a
    a
   +b
   
 
 Mock "Preserve chmod -x"
 
   $ chmod -x f1
   $ echo c >> f1
   $ hg commit -i -d '22 0' -mab <<EOF
   > y
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -2,3 +2,4 @@ a
    a
    a
    b
   +c
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg tip --config diff.git=True -p
   changeset:   26:5cc89ae210fa
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:22 1970 +0000
   summary:     ab
   
   diff --git a/subdir/f1 b/subdir/f1
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -2,3 +2,4 @@
    a
    a
    b
   +c
   
 
 #endif
 
   $ cd ..
 
 
 Abort early when a merge is in progress
 
   $ hg up 4
   1 files updated, 0 files merged, 7 files removed, 0 files unresolved
 
   $ touch iwillmergethat
   $ hg add iwillmergethat
 
   $ hg branch thatbranch
   marked working directory as branch thatbranch
   (branches are permanent and global, did you want a bookmark?)
 
   $ hg ci -m'new head'
 
   $ hg up default
   7 files updated, 0 files merged, 2 files removed, 0 files unresolved
 
   $ hg merge thatbranch
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg commit -i -m'will abort'
   abort: cannot partially commit a merge (use "hg commit" instead)
   [10]
 
   $ hg up -C
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Editing patch (and ignoring trailing text)
 
   $ cat > editor.sh << '__EOF__'
   > sed -e 7d -e '5s/^-/ /' -e '/^# ---/i\
   > trailing\nditto' "$1" > tmp
   > mv tmp "$1"
   > __EOF__
   $ cat > editedfile << '__EOF__'
   > This is the first line
   > This is the second line
   > This is the third line
   > __EOF__
   $ hg add editedfile
   $ hg commit -medit-patch-1
   $ cat > editedfile << '__EOF__'
   > This line has changed
   > This change will be committed
   > This is the third line
   > __EOF__
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -d '23 0' -medit-patch-2 <<EOF
   > y
   > e
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 2 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This is the second line
   +This line has changed
   +This change will be committed
    This is the third line
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   $ cat editedfile
   This line has changed
   This change will be committed
   This is the third line
   $ hg cat -r tip editedfile
   This is the first line
   This change will be committed
   This is the third line
   $ hg revert editedfile
 
 Trying to edit patch for whole file
 
   $ echo "This is the fourth line" >> editedfile
   $ hg commit -i <<EOF
   > e
   > q
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 1 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   cannot edit patch for whole file
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] q
   
   abort: user quit
   [250]
   $ hg revert editedfile
 
 Removing changes from patch
 
   $ sed -e '3s/third/second/' -e '2s/will/will not/' -e 1d editedfile > tmp
   $ mv tmp editedfile
   $ echo "This line has been added" >> editedfile
   $ cat > editor.sh << '__EOF__'
   > sed -e 's/^[-+]/ /' "$1" > tmp
   > mv tmp "$1"
   > __EOF__
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i <<EOF
   > y
   > e
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 3 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This change will be committed
   -This is the third line
   +This change will not be committed
   +This is the second line
   +This line has been added
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   no changes to record
   [1]
   $ cat editedfile
   This change will not be committed
   This is the second line
   This line has been added
   $ hg cat -r tip editedfile
   This is the first line
   This change will be committed
   This is the third line
   $ hg revert editedfile
 
 Invalid patch
 
   $ sed -e '3s/third/second/' -e '2s/will/will not/' -e 1d editedfile > tmp
   $ mv tmp editedfile
   $ echo "This line has been added" >> editedfile
   $ cat > editor.sh << '__EOF__'
   > sed s/This/That/ "$1" > tmp
   > mv tmp "$1"
   > __EOF__
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i <<EOF
   > y
   > e
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 3 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This change will be committed
   -This is the third line
   +This change will not be committed
   +This is the second line
   +This line has been added
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   patching file editedfile
   Hunk #1 FAILED at 0
   1 out of 1 hunks FAILED -- saving rejects to file editedfile.rej
   abort: patch failed to apply
   [10]
   $ cat editedfile
   This change will not be committed
   This is the second line
   This line has been added
   $ hg cat -r tip editedfile
   This is the first line
   This change will be committed
   This is the third line
   $ cat editedfile.rej
   --- editedfile
   +++ editedfile
   @@ -1,3 +1,3 @@
   -That is the first line
   -That change will be committed
   -That is the third line
   +That change will not be committed
   +That is the second line
   +That line has been added
 
 Malformed patch - error handling
 
   $ cat > editor.sh << '__EOF__'
   > sed -e '/^@/p' "$1" > tmp
   > mv tmp "$1"
   > __EOF__
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i <<EOF
   > y
   > e
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 3 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This change will be committed
   -This is the third line
   +This change will not be committed
   +This is the second line
   +This line has been added
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   abort: error parsing patch: unhandled transition: range -> range
   [10]
 
 Exiting editor with status 1, ignores the edit but does not stop the recording
 session
 
   $ HGEDITOR=false hg commit -i <<EOF
   > y
   > e
   > n
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 3 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This change will be committed
   -This is the third line
   +This change will not be committed
   +This is the second line
   +This line has been added
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   editor exited with exit code 1
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] n
   
   no changes to record
   [1]
 
 
 random text in random positions is still an error
 
   $ cat > editor.sh << '__EOF__'
   > sed -e '/^@/i\
   > other' "$1" > tmp
   > mv tmp "$1"
   > __EOF__
   $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i <<EOF
   > y
   > e
   > EOF
   diff --git a/editedfile b/editedfile
   1 hunks, 3 lines changed
   examine changes to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,3 @@
   -This is the first line
   -This change will be committed
   -This is the third line
   +This change will not be committed
   +This is the second line
   +This line has been added
   record this change to 'editedfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   abort: error parsing patch: unhandled transition: file -> other
   [10]
 
   $ hg up -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 With win32text
 
   $ echo '[extensions]' >> .hg/hgrc
   $ echo 'win32text = ' >> .hg/hgrc
   $ echo '[decode]' >> .hg/hgrc
   $ echo '** = cleverdecode:' >> .hg/hgrc
   $ echo '[encode]' >> .hg/hgrc
   $ echo '** = cleverencode:' >> .hg/hgrc
   $ echo '[patch]' >> .hg/hgrc
   $ echo 'eol = crlf' >> .hg/hgrc
 
 Ignore win32text deprecation warning for now:
 
   $ echo '[win32text]' >> .hg/hgrc
   $ echo 'warn = no' >> .hg/hgrc
 
   $ echo d >> subdir/f1
   $ hg commit -i -d '24 0' -mw1 <<EOF
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -3,3 +3,4 @@ a
    a
    b
    c
   +d
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
 
   $ hg status -A subdir/f1
   C subdir/f1
   $ hg tip -p
   changeset:   30:* (glob)
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:24 1970 +0000
   summary:     w1
   
   diff -r ???????????? -r ???????????? subdir/f1 (glob)
   --- a/subdir/f1	Thu Jan 01 00:00:23 1970 +0000
   +++ b/subdir/f1	Thu Jan 01 00:00:24 1970 +0000
   @@ -3,3 +3,4 @@
    a
    b
    c
   +d
   
 
 
 Test --user when ui.username not set
   $ unset HGUSER
   $ echo e >> subdir/f1
   $ hg commit -i  --config ui.username= -d '8 0' --user xyz -m "user flag" <<EOF
   > y
   > y
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   1 hunks, 1 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -4,3 +4,4 @@ a
    b
    c
    d
   +e
   record this change to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   $ hg status -A subdir/f1
   C subdir/f1
   $ hg log --template '{author}\n' -l 1
   xyz
   $ HGUSER="test"
   $ export HGUSER
 
 
 Moving files
 
   $ hg update -C .
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg mv plain plain3
   $ echo somechange >> plain3
   $ hg commit -i -d '23 0' -mmoving_files << EOF
   > y
   > y
   > EOF
   diff --git a/plain b/plain3
   rename from plain
   rename to plain3
   1 hunks, 1 lines changed
   examine changes to 'plain' and 'plain3'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -11,3 +11,4 @@ 8
    9
    10
    11
   +somechange
   record this change to 'plain3'?
   (enter ? for help) [Ynesfdaq?] y
   
+
+Rename file but discard edits
+
+  $ echo content > new-file
+  $ hg add -q new-file
+  $ hg commit -qm 'new file'
+  $ hg mv new-file renamed-file
+  $ echo new-content >> renamed-file
+  $ hg commit -i -d '24 0' -m content-rename<<EOF
+  > y
+  > n
+  > EOF
+  diff --git a/new-file b/renamed-file
+  rename from new-file
+  rename to renamed-file
+  1 hunks, 1 lines changed
+  examine changes to 'new-file' and 'renamed-file'?
+  (enter ? for help) [Ynesfdaq?] y
+  
+  @@ -1,1 +1,2 @@
+   content
+  +new-content
+  record this change to 'renamed-file'?
+  (enter ? for help) [Ynesfdaq?] n
+  
+  $ hg status
+  M renamed-file
+  ? editedfile.orig
+  ? editedfile.rej
+  ? editor.sh
+  $ hg diff
+  diff -r * renamed-file (glob)
+  --- a/renamed-file	Thu Jan 01 00:00:24 1970 +0000
+  +++ b/renamed-file	Thu Jan 01 00:00:00 1970 +0000
+  @@ -1,1 +1,2 @@
+   content
+  +new-content
+
 The #if execbit block above changes the hash here on some systems
   $ hg status -A plain3
   C plain3
   $ hg tip
-  changeset:   32:* (glob)
+  changeset:   34:* (glob)
   tag:         tip
   user:        test
-  date:        Thu Jan 01 00:00:23 1970 +0000
-  summary:     moving_files
+  date:        Thu Jan 01 00:00:24 1970 +0000
+  summary:     content-rename
   
 Editing patch of newly added file
 
   $ hg update -C .
-  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cat > editor.sh << '__EOF__'
   > cat "$1"  | sed "s/first/very/g"  > tt
   > mv tt  "$1"
   > __EOF__
   $ cat > newfile << '__EOF__'
   > This is the first line
   > This is the second line
   > This is the third line
   > __EOF__
   $ hg add newfile
-  $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -d '23 0' -medit-patch-new <<EOF
+  $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -d '25 0' -medit-patch-new <<EOF
   > y
   > e
   > EOF
   diff --git a/newfile b/newfile
   new file mode 100644
   examine changes to 'newfile'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -0,0 +1,3 @@
   +This is the first line
   +This is the second line
   +This is the third line
   record this change to 'newfile'?
   (enter ? for help) [Ynesfdaq?] e
   
   $ hg cat -r tip newfile
   This is the very line
   This is the second line
   This is the third line
 
   $ cat newfile
   This is the first line
   This is the second line
   This is the third line
 
 Add new file from within a subdirectory
   $ hg update -C .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ mkdir folder
   $ cd folder
   $ echo "foo" > bar
   $ hg add bar
-  $ hg commit -i -d '23 0' -mnewfilesubdir  <<EOF
+  $ hg commit -i -d '26 0' -mnewfilesubdir  <<EOF
   > y
   > y
   > EOF
   diff --git a/folder/bar b/folder/bar
   new file mode 100644
   examine changes to 'folder/bar'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -0,0 +1,1 @@
   +foo
   record this change to 'folder/bar'?
   (enter ? for help) [Ynesfdaq?] y
   
 The #if execbit block above changes the hashes here on some systems
   $ hg tip -p
-  changeset:   34:* (glob)
+  changeset:   36:* (glob)
   tag:         tip
   user:        test
-  date:        Thu Jan 01 00:00:23 1970 +0000
+  date:        Thu Jan 01 00:00:26 1970 +0000
   summary:     newfilesubdir
   
   diff -r * -r * folder/bar (glob)
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
-  +++ b/folder/bar	Thu Jan 01 00:00:23 1970 +0000
+  +++ b/folder/bar	Thu Jan 01 00:00:26 1970 +0000
   @@ -0,0 +1,1 @@
   +foo
   
   $ cd ..
 
   $ hg status -A folder/bar
   C folder/bar
 
 Clear win32text configuration before size/timestamp sensitive test
 
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > win32text = !
   > [decode]
   > ** = !
   > [encode]
   > ** = !
   > [patch]
   > eol = strict
   > EOF
   $ hg update -q -C null
   $ hg update -q -C tip
 
 Test that partially committed file is still treated as "modified",
 even if none of mode, size and timestamp is changed on the filesystem
 (see also issue4583).
 
   $ cat > subdir/f1 <<EOF
   > A
   > a
   > a
   > b
   > c
   > d
   > E
   > EOF
   $ hg diff --git subdir/f1
   diff --git a/subdir/f1 b/subdir/f1
   --- a/subdir/f1
   +++ b/subdir/f1
   @@ -1,7 +1,7 @@
   -a
   +A
    a
    a
    b
    c
    d
   -e
   +E
 
   $ touch -t 200001010000 subdir/f1
 
   $ cat >> .hg/hgrc <<EOF
   > # emulate invoking patch.internalpatch() at 2000-01-01 00:00
   > [fakepatchtime]
   > fakenow = 200001010000
   > 
   > [extensions]
   > fakepatchtime = $TESTDIR/fakepatchtime.py
   > EOF
   $ hg commit -i -m 'commit subdir/f1 partially' <<EOF
   > y
   > y
   > n
   > EOF
   diff --git a/subdir/f1 b/subdir/f1
   2 hunks, 2 lines changed
   examine changes to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,6 +1,6 @@
   -a
   +A
    a
    a
    b
    c
    d
   record change 1/2 to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -2,6 +2,6 @@
    a
    a
    b
    c
    d
   -e
   +E
   record change 2/2 to 'subdir/f1'?
   (enter ? for help) [Ynesfdaq?] n
   
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > fakepatchtime = !
   > EOF
 
   $ hg debugstate | grep ' subdir/f1$'
   n   0         -1 unset               subdir/f1
   $ hg status -A subdir/f1
   M subdir/f1
 
 Test commands.commit.interactive.unified=0
 
   $ hg init $TESTTMP/b
   $ cd $TESTTMP/b
   $ cat > foo <<EOF
   > 1
   > 2
   > 3
   > 4
   > 5
   > EOF
   $ hg ci -qAm initial
   $ cat > foo <<EOF
   > 1
   > change1
   > 2
   > 3
   > change2
   > 4
   > 5
   > EOF
   $ printf 'y\ny\ny\n' | hg ci -im initial --config commands.commit.interactive.unified=0
   diff --git a/foo b/foo
   2 hunks, 2 lines changed
   examine changes to 'foo'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,0 +2,1 @@ 1
   +change1
   record change 1/2 to 'foo'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -3,0 +5,1 @@ 3
   +change2
   record change 2/2 to 'foo'?
   (enter ? for help) [Ynesfdaq?] y
   
   $ cd $TESTTMP
 
 Test diff.ignoreblanklines=1
 
   $ hg init c
   $ cd c
   $ cat > foo <<EOF
   > 1
   > 2
   > 3
   > 4
   > 5
   > EOF
   $ hg ci -qAm initial
   $ cat > foo <<EOF
   > 1
   > 
   > 2
   > 3
   > change2
   > 4
   > 5
   > EOF
   $ printf 'y\ny\ny\n' | hg ci -im initial --config diff.ignoreblanklines=1
   diff --git a/foo b/foo
   2 hunks, 2 lines changed
   examine changes to 'foo'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -1,3 +1,4 @@
    1
   +
    2
    3
   record change 1/2 to 'foo'?
   (enter ? for help) [Ynesfdaq?] y
   
   @@ -2,4 +3,5 @@
    2
    3
   +change2
    4
    5
   record change 2/2 to 'foo'?
   (enter ? for help) [Ynesfdaq?] y