diff: make sure we output stat even when --git is not passed (issue4037) (BC)

Before this patch, `hg diff --stat` will give an empty output. It will not show
the stat information. I debugged and found that the underlying code does not
return the diff header and due to that, other code paths fails to parse that as
a diff.

I looked into why we don't return diff headers in quiet mode and found the
behavior is from 8f8bb77d560e70bcc95577e4dfa877df18d876ab which does not have
any mention about why it is done. We also show the diff headers in git, so I
think it's fine showing diff header in normal diff in quiet mode.

Differential Revision: https://phab.mercurial-scm.org/D6007

mercurial/patch.py

@@ -1,2850 +1,2850 b''
 # patch.py - patch file parsing routines
 #
 # Copyright 2006 Brendan Cully <[e-mail]>
 # Copyright 2007 Chris Mason <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import, print_function
 
 import collections
 import contextlib
 import copy
 import email
 import errno
 import hashlib
 import os
 import re
 import shutil
 import zlib
 
 from .i18n import _
 from .node import (
     hex,
     short,
 )
 from . import (
     copies,
     diffhelper,
     diffutil,
     encoding,
     error,
     mail,
     mdiff,
     pathutil,
     pycompat,
     scmutil,
     similar,
     util,
     vfs as vfsmod,
 )
 from .utils import (
     dateutil,
     procutil,
     stringutil,
 )
 
 stringio = util.stringio
 
 gitre = re.compile(br'diff --git a/(.*) b/(.*)')
 tabsplitter = re.compile(br'(\t+|[^\t]+)')
 wordsplitter = re.compile(br'(\t+| +|[a-zA-Z0-9_\x80-\xff]+|'
                           b'[^ \ta-zA-Z0-9_\x80-\xff])')
 
 PatchError = error.PatchError
 
 # public functions
 
 def split(stream):
     '''return an iterator of individual patches from a stream'''
     def isheader(line, inheader):
         if inheader and line.startswith((' ', '\t')):
             # continuation
             return True
         if line.startswith((' ', '-', '+')):
             # diff line - don't check for header pattern in there
             return False
         l = line.split(': ', 1)
         return len(l) == 2 and ' ' not in l[0]
 
     def chunk(lines):
         return stringio(''.join(lines))
 
     def hgsplit(stream, cur):
         inheader = True
 
         for line in stream:
             if not line.strip():
                 inheader = False
             if not inheader and line.startswith('# HG changeset patch'):
                 yield chunk(cur)
                 cur = []
                 inheader = True
 
             cur.append(line)
 
         if cur:
             yield chunk(cur)
 
     def mboxsplit(stream, cur):
         for line in stream:
             if line.startswith('From '):
                 for c in split(chunk(cur[1:])):
                     yield c
                 cur = []
 
             cur.append(line)
 
         if cur:
             for c in split(chunk(cur[1:])):
                 yield c
 
     def mimesplit(stream, cur):
         def msgfp(m):
             fp = stringio()
             g = email.Generator.Generator(fp, mangle_from_=False)
             g.flatten(m)
             fp.seek(0)
             return fp
 
         for line in stream:
             cur.append(line)
         c = chunk(cur)
 
         m = mail.parse(c)
         if not m.is_multipart():
             yield msgfp(m)
         else:
             ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
             for part in m.walk():
                 ct = part.get_content_type()
                 if ct not in ok_types:
                     continue
                 yield msgfp(part)
 
     def headersplit(stream, cur):
         inheader = False
 
         for line in stream:
             if not inheader and isheader(line, inheader):
                 yield chunk(cur)
                 cur = []
                 inheader = True
             if inheader and not isheader(line, inheader):
                 inheader = False
 
             cur.append(line)
 
         if cur:
             yield chunk(cur)
 
     def remainder(cur):
         yield chunk(cur)
 
     class fiter(object):
         def __init__(self, fp):
             self.fp = fp
 
         def __iter__(self):
             return self
 
         def next(self):
             l = self.fp.readline()
             if not l:
                 raise StopIteration
             return l
 
         __next__ = next
 
     inheader = False
     cur = []
 
     mimeheaders = ['content-type']
 
     if not util.safehasattr(stream, 'next'):
         # http responses, for example, have readline but not next
         stream = fiter(stream)
 
     for line in stream:
         cur.append(line)
         if line.startswith('# HG changeset patch'):
             return hgsplit(stream, cur)
         elif line.startswith('From '):
             return mboxsplit(stream, cur)
         elif isheader(line, inheader):
             inheader = True
             if line.split(':', 1)[0].lower() in mimeheaders:
                 # let email parser handle this
                 return mimesplit(stream, cur)
         elif line.startswith('--- ') and inheader:
             # No evil headers seen by diff start, split by hand
             return headersplit(stream, cur)
         # Not enough info, keep reading
 
     # if we are here, we have a very plain patch
     return remainder(cur)
 
 ## Some facility for extensible patch parsing:
 # list of pairs ("header to match", "data key")
 patchheadermap = [('Date', 'date'),
                   ('Branch', 'branch'),
                   ('Node ID', 'nodeid'),
                  ]
 
 @contextlib.contextmanager
 def extract(ui, fileobj):
     '''extract patch from data read from fileobj.
 
     patch can be a normal patch or contained in an email message.
 
     return a dictionary. Standard keys are:
       - filename,
       - message,
       - user,
       - date,
       - branch,
       - node,
       - p1,
       - p2.
     Any item can be missing from the dictionary. If filename is missing,
     fileobj did not contain a patch. Caller must unlink filename when done.'''
 
     fd, tmpname = pycompat.mkstemp(prefix='hg-patch-')
     tmpfp = os.fdopen(fd, r'wb')
     try:
         yield _extract(ui, fileobj, tmpname, tmpfp)
     finally:
         tmpfp.close()
         os.unlink(tmpname)
 
 def _extract(ui, fileobj, tmpname, tmpfp):
 
     # attempt to detect the start of a patch
     # (this heuristic is borrowed from quilt)
     diffre = re.compile(br'^(?:Index:[ \t]|diff[ \t]-|RCS file: |'
                         br'retrieving revision [0-9]+(\.[0-9]+)*$|'
                         br'---[ \t].*?^\+\+\+[ \t]|'
                         br'\*\*\*[ \t].*?^---[ \t])',
                         re.MULTILINE | re.DOTALL)
 
     data = {}
 
     msg = mail.parse(fileobj)
 
     subject = msg[r'Subject'] and mail.headdecode(msg[r'Subject'])
     data['user'] = msg[r'From'] and mail.headdecode(msg[r'From'])
     if not subject and not data['user']:
         # Not an email, restore parsed headers if any
         subject = '\n'.join(': '.join(map(encoding.strtolocal, h))
                             for h in msg.items()) + '\n'
 
     # should try to parse msg['Date']
     parents = []
 
     if subject:
         if subject.startswith('[PATCH'):
             pend = subject.find(']')
             if pend >= 0:
                 subject = subject[pend + 1:].lstrip()
         subject = re.sub(br'\n[ \t]+', ' ', subject)
         ui.debug('Subject: %s\n' % subject)
     if data['user']:
         ui.debug('From: %s\n' % data['user'])
     diffs_seen = 0
     ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
     message = ''
     for part in msg.walk():
         content_type = pycompat.bytestr(part.get_content_type())
         ui.debug('Content-Type: %s\n' % content_type)
         if content_type not in ok_types:
             continue
         payload = part.get_payload(decode=True)
         m = diffre.search(payload)
         if m:
             hgpatch = False
             hgpatchheader = False
             ignoretext = False
 
             ui.debug('found patch at byte %d\n' % m.start(0))
             diffs_seen += 1
             cfp = stringio()
             for line in payload[:m.start(0)].splitlines():
                 if line.startswith('# HG changeset patch') and not hgpatch:
                     ui.debug('patch generated by hg export\n')
                     hgpatch = True
                     hgpatchheader = True
                     # drop earlier commit message content
                     cfp.seek(0)
                     cfp.truncate()
                     subject = None
                 elif hgpatchheader:
                     if line.startswith('# User '):
                         data['user'] = line[7:]
                         ui.debug('From: %s\n' % data['user'])
                     elif line.startswith("# Parent "):
                         parents.append(line[9:].lstrip())
                     elif line.startswith("# "):
                         for header, key in patchheadermap:
                             prefix = '# %s ' % header
                             if line.startswith(prefix):
                                 data[key] = line[len(prefix):]
                     else:
                         hgpatchheader = False
                 elif line == '---':
                     ignoretext = True
                 if not hgpatchheader and not ignoretext:
                     cfp.write(line)
                     cfp.write('\n')
             message = cfp.getvalue()
             if tmpfp:
                 tmpfp.write(payload)
                 if not payload.endswith('\n'):
                     tmpfp.write('\n')
         elif not diffs_seen and message and content_type == 'text/plain':
             message += '\n' + payload
 
     if subject and not message.startswith(subject):
         message = '%s\n%s' % (subject, message)
     data['message'] = message
     tmpfp.close()
     if parents:
         data['p1'] = parents.pop(0)
         if parents:
             data['p2'] = parents.pop(0)
 
     if diffs_seen:
         data['filename'] = tmpname
 
     return data
 
 class patchmeta(object):
     """Patched file metadata
 
     'op' is the performed operation within ADD, DELETE, RENAME, MODIFY
     or COPY.  'path' is patched file path. 'oldpath' is set to the
     origin file when 'op' is either COPY or RENAME, None otherwise. If
     file mode is changed, 'mode' is a tuple (islink, isexec) where
     'islink' is True if the file is a symlink and 'isexec' is True if
     the file is executable. Otherwise, 'mode' is None.
     """
     def __init__(self, path):
         self.path = path
         self.oldpath = None
         self.mode = None
         self.op = 'MODIFY'
         self.binary = False
 
     def setmode(self, mode):
         islink = mode & 0o20000
         isexec = mode & 0o100
         self.mode = (islink, isexec)
 
     def copy(self):
         other = patchmeta(self.path)
         other.oldpath = self.oldpath
         other.mode = self.mode
         other.op = self.op
         other.binary = self.binary
         return other
 
     def _ispatchinga(self, afile):
         if afile == '/dev/null':
             return self.op == 'ADD'
         return afile == 'a/' + (self.oldpath or self.path)
 
     def _ispatchingb(self, bfile):
         if bfile == '/dev/null':
             return self.op == 'DELETE'
         return bfile == 'b/' + self.path
 
     def ispatching(self, afile, bfile):
         return self._ispatchinga(afile) and self._ispatchingb(bfile)
 
     def __repr__(self):
         return r"<patchmeta %s %r>" % (self.op, self.path)
 
 def readgitpatch(lr):
     """extract git-style metadata about patches from <patchname>"""
 
     # Filter patch for git information
     gp = None
     gitpatches = []
     for line in lr:
         line = line.rstrip(' \r\n')
         if line.startswith('diff --git a/'):
             m = gitre.match(line)
             if m:
                 if gp:
                     gitpatches.append(gp)
                 dst = m.group(2)
                 gp = patchmeta(dst)
         elif gp:
             if line.startswith('--- '):
                 gitpatches.append(gp)
                 gp = None
                 continue
             if line.startswith('rename from '):
                 gp.op = 'RENAME'
                 gp.oldpath = line[12:]
             elif line.startswith('rename to '):
                 gp.path = line[10:]
             elif line.startswith('copy from '):
                 gp.op = 'COPY'
                 gp.oldpath = line[10:]
             elif line.startswith('copy to '):
                 gp.path = line[8:]
             elif line.startswith('deleted file'):
                 gp.op = 'DELETE'
             elif line.startswith('new file mode '):
                 gp.op = 'ADD'
                 gp.setmode(int(line[-6:], 8))
             elif line.startswith('new mode '):
                 gp.setmode(int(line[-6:], 8))
             elif line.startswith('GIT binary patch'):
                 gp.binary = True
     if gp:
         gitpatches.append(gp)
 
     return gitpatches
 
 class linereader(object):
     # simple class to allow pushing lines back into the input stream
     def __init__(self, fp):
         self.fp = fp
         self.buf = []
 
     def push(self, line):
         if line is not None:
             self.buf.append(line)
 
     def readline(self):
         if self.buf:
             l = self.buf[0]
             del self.buf[0]
             return l
         return self.fp.readline()
 
     def __iter__(self):
         return iter(self.readline, '')
 
 class abstractbackend(object):
     def __init__(self, ui):
         self.ui = ui
 
     def getfile(self, fname):
         """Return target file data and flags as a (data, (islink,
         isexec)) tuple. Data is None if file is missing/deleted.
         """
         raise NotImplementedError
 
     def setfile(self, fname, data, mode, copysource):
         """Write data to target file fname and set its mode. mode is a
         (islink, isexec) tuple. If data is None, the file content should
         be left unchanged. If the file is modified after being copied,
         copysource is set to the original file name.
         """
         raise NotImplementedError
 
     def unlink(self, fname):
         """Unlink target file."""
         raise NotImplementedError
 
     def writerej(self, fname, failed, total, lines):
         """Write rejected lines for fname. total is the number of hunks
         which failed to apply and total the total number of hunks for this
         files.
         """
 
     def exists(self, fname):
         raise NotImplementedError
 
     def close(self):
         raise NotImplementedError
 
 class fsbackend(abstractbackend):
     def __init__(self, ui, basedir):
         super(fsbackend, self).__init__(ui)
         self.opener = vfsmod.vfs(basedir)
 
     def getfile(self, fname):
         if self.opener.islink(fname):
             return (self.opener.readlink(fname), (True, False))
 
         isexec = False
         try:
             isexec = self.opener.lstat(fname).st_mode & 0o100 != 0
         except OSError as e:
             if e.errno != errno.ENOENT:
                 raise
         try:
             return (self.opener.read(fname), (False, isexec))
         except IOError as e:
             if e.errno != errno.ENOENT:
                 raise
             return None, None
 
     def setfile(self, fname, data, mode, copysource):
         islink, isexec = mode
         if data is None:
             self.opener.setflags(fname, islink, isexec)
             return
         if islink:
             self.opener.symlink(data, fname)
         else:
             self.opener.write(fname, data)
             if isexec:
                 self.opener.setflags(fname, False, True)
 
     def unlink(self, fname):
         rmdir = self.ui.configbool('experimental', 'removeemptydirs')
         self.opener.unlinkpath(fname, ignoremissing=True, rmdir=rmdir)
 
     def writerej(self, fname, failed, total, lines):
         fname = fname + ".rej"
         self.ui.warn(
             _("%d out of %d hunks FAILED -- saving rejects to file %s\n") %
             (failed, total, fname))
         fp = self.opener(fname, 'w')
         fp.writelines(lines)
         fp.close()
 
     def exists(self, fname):
         return self.opener.lexists(fname)
 
 class workingbackend(fsbackend):
     def __init__(self, ui, repo, similarity):
         super(workingbackend, self).__init__(ui, repo.root)
         self.repo = repo
         self.similarity = similarity
         self.removed = set()
         self.changed = set()
         self.copied = []
 
     def _checkknown(self, fname):
         if self.repo.dirstate[fname] == '?' and self.exists(fname):
             raise PatchError(_('cannot patch %s: file is not tracked') % fname)
 
     def setfile(self, fname, data, mode, copysource):
         self._checkknown(fname)
         super(workingbackend, self).setfile(fname, data, mode, copysource)
         if copysource is not None:
             self.copied.append((copysource, fname))
         self.changed.add(fname)
 
     def unlink(self, fname):
         self._checkknown(fname)
         super(workingbackend, self).unlink(fname)
         self.removed.add(fname)
         self.changed.add(fname)
 
     def close(self):
         wctx = self.repo[None]
         changed = set(self.changed)
         for src, dst in self.copied:
             scmutil.dirstatecopy(self.ui, self.repo, wctx, src, dst)
         if self.removed:
             wctx.forget(sorted(self.removed))
             for f in self.removed:
                 if f not in self.repo.dirstate:
                     # File was deleted and no longer belongs to the
                     # dirstate, it was probably marked added then
                     # deleted, and should not be considered by
                     # marktouched().
                     changed.discard(f)
         if changed:
             scmutil.marktouched(self.repo, changed, self.similarity)
         return sorted(self.changed)
 
 class filestore(object):
     def __init__(self, maxsize=None):
         self.opener = None
         self.files = {}
         self.created = 0
         self.maxsize = maxsize
         if self.maxsize is None:
             self.maxsize = 4*(2**20)
         self.size = 0
         self.data = {}
 
     def setfile(self, fname, data, mode, copied=None):
         if self.maxsize < 0 or (len(data) + self.size) <= self.maxsize:
             self.data[fname] = (data, mode, copied)
             self.size += len(data)
         else:
             if self.opener is None:
                 root = pycompat.mkdtemp(prefix='hg-patch-')
                 self.opener = vfsmod.vfs(root)
             # Avoid filename issues with these simple names
             fn = '%d' % self.created
             self.opener.write(fn, data)
             self.created += 1
             self.files[fname] = (fn, mode, copied)
 
     def getfile(self, fname):
         if fname in self.data:
             return self.data[fname]
         if not self.opener or fname not in self.files:
             return None, None, None
         fn, mode, copied = self.files[fname]
         return self.opener.read(fn), mode, copied
 
     def close(self):
         if self.opener:
             shutil.rmtree(self.opener.base)
 
 class repobackend(abstractbackend):
     def __init__(self, ui, repo, ctx, store):
         super(repobackend, self).__init__(ui)
         self.repo = repo
         self.ctx = ctx
         self.store = store
         self.changed = set()
         self.removed = set()
         self.copied = {}
 
     def _checkknown(self, fname):
         if fname not in self.ctx:
             raise PatchError(_('cannot patch %s: file is not tracked') % fname)
 
     def getfile(self, fname):
         try:
             fctx = self.ctx[fname]
         except error.LookupError:
             return None, None
         flags = fctx.flags()
         return fctx.data(), ('l' in flags, 'x' in flags)
 
     def setfile(self, fname, data, mode, copysource):
         if copysource:
             self._checkknown(copysource)
         if data is None:
             data = self.ctx[fname].data()
         self.store.setfile(fname, data, mode, copysource)
         self.changed.add(fname)
         if copysource:
             self.copied[fname] = copysource
 
     def unlink(self, fname):
         self._checkknown(fname)
         self.removed.add(fname)
 
     def exists(self, fname):
         return fname in self.ctx
 
     def close(self):
         return self.changed | self.removed
 
 # @@ -start,len +start,len @@ or @@ -start +start @@ if len is 1
 unidesc = re.compile(br'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@')
 contextdesc = re.compile(br'(?:---|\*\*\*) (\d+)(?:,(\d+))? (?:---|\*\*\*)')
 eolmodes = ['strict', 'crlf', 'lf', 'auto']
 
 class patchfile(object):
     def __init__(self, ui, gp, backend, store, eolmode='strict'):
         self.fname = gp.path
         self.eolmode = eolmode
         self.eol = None
         self.backend = backend
         self.ui = ui
         self.lines = []
         self.exists = False
         self.missing = True
         self.mode = gp.mode
         self.copysource = gp.oldpath
         self.create = gp.op in ('ADD', 'COPY', 'RENAME')
         self.remove = gp.op == 'DELETE'
         if self.copysource is None:
             data, mode = backend.getfile(self.fname)
         else:
             data, mode = store.getfile(self.copysource)[:2]
         if data is not None:
             self.exists = self.copysource is None or backend.exists(self.fname)
             self.missing = False
             if data:
                 self.lines = mdiff.splitnewlines(data)
             if self.mode is None:
                 self.mode = mode
             if self.lines:
                 # Normalize line endings
                 if self.lines[0].endswith('\r\n'):
                     self.eol = '\r\n'
                 elif self.lines[0].endswith('\n'):
                     self.eol = '\n'
                 if eolmode != 'strict':
                     nlines = []
                     for l in self.lines:
                         if l.endswith('\r\n'):
                             l = l[:-2] + '\n'
                         nlines.append(l)
                     self.lines = nlines
         else:
             if self.create:
                 self.missing = False
             if self.mode is None:
                 self.mode = (False, False)
         if self.missing:
             self.ui.warn(_("unable to find '%s' for patching\n") % self.fname)
             self.ui.warn(_("(use '--prefix' to apply patch relative to the "
                            "current directory)\n"))
 
         self.hash = {}
         self.dirty = 0
         self.offset = 0
         self.skew = 0
         self.rej = []
         self.fileprinted = False
         self.printfile(False)
         self.hunks = 0
 
     def writelines(self, fname, lines, mode):
         if self.eolmode == 'auto':
             eol = self.eol
         elif self.eolmode == 'crlf':
             eol = '\r\n'
         else:
             eol = '\n'
 
         if self.eolmode != 'strict' and eol and eol != '\n':
             rawlines = []
             for l in lines:
                 if l and l.endswith('\n'):
                     l = l[:-1] + eol
                 rawlines.append(l)
             lines = rawlines
 
         self.backend.setfile(fname, ''.join(lines), mode, self.copysource)
 
     def printfile(self, warn):
         if self.fileprinted:
             return
         if warn or self.ui.verbose:
             self.fileprinted = True
         s = _("patching file %s\n") % self.fname
         if warn:
             self.ui.warn(s)
         else:
             self.ui.note(s)
 
 
     def findlines(self, l, linenum):
         # looks through the hash and finds candidate lines.  The
         # result is a list of line numbers sorted based on distance
         # from linenum
 
         cand = self.hash.get(l, [])
         if len(cand) > 1:
             # resort our list of potentials forward then back.
             cand.sort(key=lambda x: abs(x - linenum))
         return cand
 
     def write_rej(self):
         # our rejects are a little different from patch(1).  This always
         # creates rejects in the same form as the original patch.  A file
         # header is inserted so that you can run the reject through patch again
         # without having to type the filename.
         if not self.rej:
             return
         base = os.path.basename(self.fname)
         lines = ["--- %s\n+++ %s\n" % (base, base)]
         for x in self.rej:
             for l in x.hunk:
                 lines.append(l)
                 if l[-1:] != '\n':
                     lines.append("\n\\ No newline at end of file\n")
         self.backend.writerej(self.fname, len(self.rej), self.hunks, lines)
 
     def apply(self, h):
         if not h.complete():
             raise PatchError(_("bad hunk #%d %s (%d %d %d %d)") %
                             (h.number, h.desc, len(h.a), h.lena, len(h.b),
                             h.lenb))
 
         self.hunks += 1
 
         if self.missing:
             self.rej.append(h)
             return -1
 
         if self.exists and self.create:
             if self.copysource:
                 self.ui.warn(_("cannot create %s: destination already "
                                "exists\n") % self.fname)
             else:
                 self.ui.warn(_("file %s already exists\n") % self.fname)
             self.rej.append(h)
             return -1
 
         if isinstance(h, binhunk):
             if self.remove:
                 self.backend.unlink(self.fname)
             else:
                 l = h.new(self.lines)
                 self.lines[:] = l
                 self.offset += len(l)
                 self.dirty = True
             return 0
 
         horig = h
         if (self.eolmode in ('crlf', 'lf')
             or self.eolmode == 'auto' and self.eol):
             # If new eols are going to be normalized, then normalize
             # hunk data before patching. Otherwise, preserve input
             # line-endings.
             h = h.getnormalized()
 
         # fast case first, no offsets, no fuzz
         old, oldstart, new, newstart = h.fuzzit(0, False)
         oldstart += self.offset
         orig_start = oldstart
         # if there's skew we want to emit the "(offset %d lines)" even
         # when the hunk cleanly applies at start + skew, so skip the
         # fast case code
         if self.skew == 0 and diffhelper.testhunk(old, self.lines, oldstart):
             if self.remove:
                 self.backend.unlink(self.fname)
             else:
                 self.lines[oldstart:oldstart + len(old)] = new
                 self.offset += len(new) - len(old)
                 self.dirty = True
             return 0
 
         # ok, we couldn't match the hunk. Lets look for offsets and fuzz it
         self.hash = {}
         for x, s in enumerate(self.lines):
             self.hash.setdefault(s, []).append(x)
 
         for fuzzlen in pycompat.xrange(self.ui.configint("patch", "fuzz") + 1):
             for toponly in [True, False]:
                 old, oldstart, new, newstart = h.fuzzit(fuzzlen, toponly)
                 oldstart = oldstart + self.offset + self.skew
                 oldstart = min(oldstart, len(self.lines))
                 if old:
                     cand = self.findlines(old[0][1:], oldstart)
                 else:
                     # Only adding lines with no or fuzzed context, just
                     # take the skew in account
                     cand = [oldstart]
 
                 for l in cand:
                     if not old or diffhelper.testhunk(old, self.lines, l):
                         self.lines[l : l + len(old)] = new
                         self.offset += len(new) - len(old)
                         self.skew = l - orig_start
                         self.dirty = True
                         offset = l - orig_start - fuzzlen
                         if fuzzlen:
                             msg = _("Hunk #%d succeeded at %d "
                                     "with fuzz %d "
                                     "(offset %d lines).\n")
                             self.printfile(True)
                             self.ui.warn(msg %
                                 (h.number, l + 1, fuzzlen, offset))
                         else:
                             msg = _("Hunk #%d succeeded at %d "
                                     "(offset %d lines).\n")
                             self.ui.note(msg % (h.number, l + 1, offset))
                         return fuzzlen
         self.printfile(True)
         self.ui.warn(_("Hunk #%d FAILED at %d\n") % (h.number, orig_start))
         self.rej.append(horig)
         return -1
 
     def close(self):
         if self.dirty:
             self.writelines(self.fname, self.lines, self.mode)
         self.write_rej()
         return len(self.rej)
 
 class header(object):
     """patch header
     """
     diffgit_re = re.compile('diff --git a/(.*) b/(.*)$')
     diff_re = re.compile('diff -r .* (.*)$')
     allhunks_re = re.compile('(?:index|deleted file) ')
     pretty_re = re.compile('(?:new file|deleted file) ')
     special_re = re.compile('(?:index|deleted|copy|rename) ')
     newfile_re = re.compile('(?:new file)')
 
     def __init__(self, header):
         self.header = header
         self.hunks = []
 
     def binary(self):
         return any(h.startswith('index ') for h in self.header)
 
     def pretty(self, fp):
         for h in self.header:
             if h.startswith('index '):
                 fp.write(_('this modifies a binary file (all or nothing)\n'))
                 break
             if self.pretty_re.match(h):
                 fp.write(h)
                 if self.binary():
                     fp.write(_('this is a binary file\n'))
                 break
             if h.startswith('---'):
                 fp.write(_('%d hunks, %d lines changed\n') %
                          (len(self.hunks),
                           sum([max(h.added, h.removed) for h in self.hunks])))
                 break
             fp.write(h)
 
     def write(self, fp):
         fp.write(''.join(self.header))
 
     def allhunks(self):
         return any(self.allhunks_re.match(h) for h in self.header)
 
     def files(self):
         match = self.diffgit_re.match(self.header[0])
         if match:
             fromfile, tofile = match.groups()
             if fromfile == tofile:
                 return [fromfile]
             return [fromfile, tofile]
         else:
             return self.diff_re.match(self.header[0]).groups()
 
     def filename(self):
         return self.files()[-1]
 
     def __repr__(self):
         return '<header %s>' % (' '.join(map(repr, self.files())))
 
     def isnewfile(self):
         return any(self.newfile_re.match(h) for h in self.header)
 
     def special(self):
         # Special files are shown only at the header level and not at the hunk
         # level for example a file that has been deleted is a special file.
         # The user cannot change the content of the operation, in the case of
         # the deleted file he has to take the deletion or not take it, he
         # cannot take some of it.
         # Newly added files are special if they are empty, they are not special
         # if they have some content as we want to be able to change it
         nocontent = len(self.header) == 2
         emptynewfile = self.isnewfile() and nocontent
         return (emptynewfile
                 or any(self.special_re.match(h) for h in self.header))
 
 class recordhunk(object):
     """patch hunk
 
     XXX shouldn't we merge this with the other hunk class?
     """
 
     def __init__(self, header, fromline, toline, proc, before, hunk, after,
                  maxcontext=None):
         def trimcontext(lines, reverse=False):
             if maxcontext is not None:
                 delta = len(lines) - maxcontext
                 if delta > 0:
                     if reverse:
                         return delta, lines[delta:]
                     else:
                         return delta, lines[:maxcontext]
             return 0, lines
 
         self.header = header
         trimedbefore, self.before = trimcontext(before, True)
         self.fromline = fromline + trimedbefore
         self.toline = toline + trimedbefore
         _trimedafter, self.after = trimcontext(after, False)
         self.proc = proc
         self.hunk = hunk
         self.added, self.removed = self.countchanges(self.hunk)
 
     def __eq__(self, v):
         if not isinstance(v, recordhunk):
             return False
 
         return ((v.hunk == self.hunk) and
                 (v.proc == self.proc) and
                 (self.fromline == v.fromline) and
                 (self.header.files() == v.header.files()))
 
     def __hash__(self):
         return hash((tuple(self.hunk),
             tuple(self.header.files()),
             self.fromline,
             self.proc))
 
     def countchanges(self, hunk):
         """hunk -> (n+,n-)"""
         add = len([h for h in hunk if h.startswith('+')])
         rem = len([h for h in hunk if h.startswith('-')])
         return add, rem
 
     def reversehunk(self):
         """return another recordhunk which is the reverse of the hunk
 
         If this hunk is diff(A, B), the returned hunk is diff(B, A). To do
         that, swap fromline/toline and +/- signs while keep other things
         unchanged.
         """
         m = {'+': '-', '-': '+', '\\': '\\'}
         hunk = ['%s%s' % (m[l[0:1]], l[1:]) for l in self.hunk]
         return recordhunk(self.header, self.toline, self.fromline, self.proc,
                           self.before, hunk, self.after)
 
     def write(self, fp):
         delta = len(self.before) + len(self.after)
         if self.after and self.after[-1] == '\\ No newline at end of file\n':
             delta -= 1
         fromlen = delta + self.removed
         tolen = delta + self.added
         fp.write('@@ -%d,%d +%d,%d @@%s\n' %
                  (self.fromline, fromlen, self.toline, tolen,
                   self.proc and (' ' + self.proc)))
         fp.write(''.join(self.before + self.hunk + self.after))
 
     pretty = write
 
     def filename(self):
         return self.header.filename()
 
     def __repr__(self):
         return '<hunk %r@%d>' % (self.filename(), self.fromline)
 
 def getmessages():
     return {
         'multiple': {
             'apply': _("apply change %d/%d to '%s'?"),
             'discard': _("discard change %d/%d to '%s'?"),
             'record': _("record change %d/%d to '%s'?"),
         },
         'single': {
             'apply': _("apply this change to '%s'?"),
             'discard': _("discard this change to '%s'?"),
             'record': _("record this change to '%s'?"),
         },
         'help': {
             'apply': _('[Ynesfdaq?]'
                          '$$ &Yes, apply this change'
                          '$$ &No, skip this change'
                          '$$ &Edit this change manually'
                          '$$ &Skip remaining changes to this file'
                          '$$ Apply remaining changes to this &file'
                          '$$ &Done, skip remaining changes and files'
                          '$$ Apply &all changes to all remaining files'
                          '$$ &Quit, applying no changes'
                          '$$ &? (display help)'),
             'discard': _('[Ynesfdaq?]'
                          '$$ &Yes, discard this change'
                          '$$ &No, skip this change'
                          '$$ &Edit this change manually'
                          '$$ &Skip remaining changes to this file'
                          '$$ Discard remaining changes to this &file'
                          '$$ &Done, skip remaining changes and files'
                          '$$ Discard &all changes to all remaining files'
                          '$$ &Quit, discarding no changes'
                          '$$ &? (display help)'),
             'record': _('[Ynesfdaq?]'
                         '$$ &Yes, record this change'
                         '$$ &No, skip this change'
                         '$$ &Edit this change manually'
                         '$$ &Skip remaining changes to this file'
                         '$$ Record remaining changes to this &file'
                         '$$ &Done, skip remaining changes and files'
                         '$$ Record &all changes to all remaining files'
                         '$$ &Quit, recording no changes'
                         '$$ &? (display help)'),
         }
     }
 
 def filterpatch(ui, headers, operation=None):
     """Interactively filter patch chunks into applied-only chunks"""
     messages = getmessages()
 
     if operation is None:
         operation = 'record'
 
     def prompt(skipfile, skipall, query, chunk):
         """prompt query, and process base inputs
 
         - y/n for the rest of file
         - y/n for the rest
         - ? (help)
         - q (quit)
 
         Return True/False and possibly updated skipfile and skipall.
         """
         newpatches = None
         if skipall is not None:
             return skipall, skipfile, skipall, newpatches
         if skipfile is not None:
             return skipfile, skipfile, skipall, newpatches
         while True:
             resps = messages['help'][operation]
             r = ui.promptchoice("%s %s" % (query, resps))
             ui.write("\n")
             if r == 8: # ?
                 for c, t in ui.extractchoices(resps)[1]:
                     ui.write('%s - %s\n' % (c, encoding.lower(t)))
                 continue
             elif r == 0: # yes
                 ret = True
             elif r == 1: # no
                 ret = False
             elif r == 2: # Edit patch
                 if chunk is None:
                     ui.write(_('cannot edit patch for whole file'))
                     ui.write("\n")
                     continue
                 if chunk.header.binary():
                     ui.write(_('cannot edit patch for binary file'))
                     ui.write("\n")
                     continue
                 # Patch comment based on the Git one (based on comment at end of
                 # https://mercurial-scm.org/wiki/RecordExtension)
                 phelp = '---' + _("""
 To remove '-' lines, make them ' ' lines (context).
 To remove '+' lines, delete them.
 Lines starting with # will be removed from the patch.
 
 If the patch applies cleanly, the edited hunk will immediately be
 added to the record list. If it does not apply cleanly, a rejects
 file will be generated: you can use that when you try again. If
 all lines of the hunk are removed, then the edit is aborted and
 the hunk is left unchanged.
 """)
                 (patchfd, patchfn) = pycompat.mkstemp(prefix="hg-editor-",
                                                       suffix=".diff")
                 ncpatchfp = None
                 try:
                     # Write the initial patch
                     f = util.nativeeolwriter(os.fdopen(patchfd, r'wb'))
                     chunk.header.write(f)
                     chunk.write(f)
                     f.write('\n'.join(['# ' + i for i in phelp.splitlines()]))
                     f.close()
                     # Start the editor and wait for it to complete
                     editor = ui.geteditor()
                     ret = ui.system("%s \"%s\"" % (editor, patchfn),
                                     environ={'HGUSER': ui.username()},
                                     blockedtag='filterpatch')
                     if ret != 0:
                         ui.warn(_("editor exited with exit code %d\n") % ret)
                         continue
                     # Remove comment lines
                     patchfp = open(patchfn, r'rb')
                     ncpatchfp = stringio()
                     for line in util.iterfile(patchfp):
                         line = util.fromnativeeol(line)
                         if not line.startswith('#'):
                             ncpatchfp.write(line)
                     patchfp.close()
                     ncpatchfp.seek(0)
                     newpatches = parsepatch(ncpatchfp)
                 finally:
                     os.unlink(patchfn)
                     del ncpatchfp
                 # Signal that the chunk shouldn't be applied as-is, but
                 # provide the new patch to be used instead.
                 ret = False
             elif r == 3: # Skip
                 ret = skipfile = False
             elif r == 4: # file (Record remaining)
                 ret = skipfile = True
             elif r == 5: # done, skip remaining
                 ret = skipall = False
             elif r == 6: # all
                 ret = skipall = True
             elif r == 7: # quit
                 raise error.Abort(_('user quit'))
             return ret, skipfile, skipall, newpatches
 
     seen = set()
     applied = {}        # 'filename' -> [] of chunks
     skipfile, skipall = None, None
     pos, total = 1, sum(len(h.hunks) for h in headers)
     for h in headers:
         pos += len(h.hunks)
         skipfile = None
         fixoffset = 0
         hdr = ''.join(h.header)
         if hdr in seen:
             continue
         seen.add(hdr)
         if skipall is None:
             h.pretty(ui)
         msg = (_('examine changes to %s?') %
                _(' and ').join("'%s'" % f for f in h.files()))
         r, skipfile, skipall, np = prompt(skipfile, skipall, msg, None)
         if not r:
             continue
         applied[h.filename()] = [h]
         if h.allhunks():
             applied[h.filename()] += h.hunks
             continue
         for i, chunk in enumerate(h.hunks):
             if skipfile is None and skipall is None:
                 chunk.pretty(ui)
             if total == 1:
                 msg = messages['single'][operation] % chunk.filename()
             else:
                 idx = pos - len(h.hunks) + i
                 msg = messages['multiple'][operation] % (idx, total,
                                                          chunk.filename())
             r, skipfile, skipall, newpatches = prompt(skipfile,
                     skipall, msg, chunk)
             if r:
                 if fixoffset:
                     chunk = copy.copy(chunk)
                     chunk.toline += fixoffset
                 applied[chunk.filename()].append(chunk)
             elif newpatches is not None:
                 for newpatch in newpatches:
                     for newhunk in newpatch.hunks:
                         if fixoffset:
                             newhunk.toline += fixoffset
                         applied[newhunk.filename()].append(newhunk)
             else:
                 fixoffset += chunk.removed - chunk.added
     return (sum([h for h in applied.itervalues()
                if h[0].special() or len(h) > 1], []), {})
 class hunk(object):
     def __init__(self, desc, num, lr, context):
         self.number = num
         self.desc = desc
         self.hunk = [desc]
         self.a = []
         self.b = []
         self.starta = self.lena = None
         self.startb = self.lenb = None
         if lr is not None:
             if context:
                 self.read_context_hunk(lr)
             else:
                 self.read_unified_hunk(lr)
 
     def getnormalized(self):
         """Return a copy with line endings normalized to LF."""
 
         def normalize(lines):
             nlines = []
             for line in lines:
                 if line.endswith('\r\n'):
                     line = line[:-2] + '\n'
                 nlines.append(line)
             return nlines
 
         # Dummy object, it is rebuilt manually
         nh = hunk(self.desc, self.number, None, None)
         nh.number = self.number
         nh.desc = self.desc
         nh.hunk = self.hunk
         nh.a = normalize(self.a)
         nh.b = normalize(self.b)
         nh.starta = self.starta
         nh.startb = self.startb
         nh.lena = self.lena
         nh.lenb = self.lenb
         return nh
 
     def read_unified_hunk(self, lr):
         m = unidesc.match(self.desc)
         if not m:
             raise PatchError(_("bad hunk #%d") % self.number)
         self.starta, self.lena, self.startb, self.lenb = m.groups()
         if self.lena is None:
             self.lena = 1
         else:
             self.lena = int(self.lena)
         if self.lenb is None:
             self.lenb = 1
         else:
             self.lenb = int(self.lenb)
         self.starta = int(self.starta)
         self.startb = int(self.startb)
         try:
             diffhelper.addlines(lr, self.hunk, self.lena, self.lenb,
                                 self.a, self.b)
         except error.ParseError as e:
             raise PatchError(_("bad hunk #%d: %s") % (self.number, e))
         # if we hit eof before finishing out the hunk, the last line will
         # be zero length.  Lets try to fix it up.
         while len(self.hunk[-1]) == 0:
             del self.hunk[-1]
             del self.a[-1]
             del self.b[-1]
             self.lena -= 1
             self.lenb -= 1
         self._fixnewline(lr)
 
     def read_context_hunk(self, lr):
         self.desc = lr.readline()
         m = contextdesc.match(self.desc)
         if not m:
             raise PatchError(_("bad hunk #%d") % self.number)
         self.starta, aend = m.groups()
         self.starta = int(self.starta)
         if aend is None:
             aend = self.starta
         self.lena = int(aend) - self.starta
         if self.starta:
             self.lena += 1
         for x in pycompat.xrange(self.lena):
             l = lr.readline()
             if l.startswith('---'):
                 # lines addition, old block is empty
                 lr.push(l)
                 break
             s = l[2:]
             if l.startswith('- ') or l.startswith('! '):
                 u = '-' + s
             elif l.startswith('  '):
                 u = ' ' + s
             else:
                 raise PatchError(_("bad hunk #%d old text line %d") %
                                  (self.number, x))
             self.a.append(u)
             self.hunk.append(u)
 
         l = lr.readline()
         if l.startswith(br'\ '):
             s = self.a[-1][:-1]
             self.a[-1] = s
             self.hunk[-1] = s
             l = lr.readline()
         m = contextdesc.match(l)
         if not m:
             raise PatchError(_("bad hunk #%d") % self.number)
         self.startb, bend = m.groups()
         self.startb = int(self.startb)
         if bend is None:
             bend = self.startb
         self.lenb = int(bend) - self.startb
         if self.startb:
             self.lenb += 1
         hunki = 1
         for x in pycompat.xrange(self.lenb):
             l = lr.readline()
             if l.startswith(br'\ '):
                 # XXX: the only way to hit this is with an invalid line range.
                 # The no-eol marker is not counted in the line range, but I
                 # guess there are diff(1) out there which behave differently.
                 s = self.b[-1][:-1]
                 self.b[-1] = s
                 self.hunk[hunki - 1] = s
                 continue
             if not l:
                 # line deletions, new block is empty and we hit EOF
                 lr.push(l)
                 break
             s = l[2:]
             if l.startswith('+ ') or l.startswith('! '):
                 u = '+' + s
             elif l.startswith('  '):
                 u = ' ' + s
             elif len(self.b) == 0:
                 # line deletions, new block is empty
                 lr.push(l)
                 break
             else:
                 raise PatchError(_("bad hunk #%d old text line %d") %
                                  (self.number, x))
             self.b.append(s)
             while True:
                 if hunki >= len(self.hunk):
                     h = ""
                 else:
                     h = self.hunk[hunki]
                 hunki += 1
                 if h == u:
                     break
                 elif h.startswith('-'):
                     continue
                 else:
                     self.hunk.insert(hunki - 1, u)
                     break
 
         if not self.a:
             # this happens when lines were only added to the hunk
             for x in self.hunk:
                 if x.startswith('-') or x.startswith(' '):
                     self.a.append(x)
         if not self.b:
             # this happens when lines were only deleted from the hunk
             for x in self.hunk:
                 if x.startswith('+') or x.startswith(' '):
                     self.b.append(x[1:])
         # @@ -start,len +start,len @@
         self.desc = "@@ -%d,%d +%d,%d @@\n" % (self.starta, self.lena,
                                              self.startb, self.lenb)
         self.hunk[0] = self.desc
         self._fixnewline(lr)
 
     def _fixnewline(self, lr):
         l = lr.readline()
         if l.startswith(br'\ '):
             diffhelper.fixnewline(self.hunk, self.a, self.b)
         else:
             lr.push(l)
 
     def complete(self):
         return len(self.a) == self.lena and len(self.b) == self.lenb
 
     def _fuzzit(self, old, new, fuzz, toponly):
         # this removes context lines from the top and bottom of list 'l'.  It
         # checks the hunk to make sure only context lines are removed, and then
         # returns a new shortened list of lines.
         fuzz = min(fuzz, len(old))
         if fuzz:
             top = 0
             bot = 0
             hlen = len(self.hunk)
             for x in pycompat.xrange(hlen - 1):
                 # the hunk starts with the @@ line, so use x+1
                 if self.hunk[x + 1].startswith(' '):
                     top += 1
                 else:
                     break
             if not toponly:
                 for x in pycompat.xrange(hlen - 1):
                     if self.hunk[hlen - bot - 1].startswith(' '):
                         bot += 1
                     else:
                         break
 
             bot = min(fuzz, bot)
             top = min(fuzz, top)
             return old[top:len(old) - bot], new[top:len(new) - bot], top
         return old, new, 0
 
     def fuzzit(self, fuzz, toponly):
         old, new, top = self._fuzzit(self.a, self.b, fuzz, toponly)
         oldstart = self.starta + top
         newstart = self.startb + top
         # zero length hunk ranges already have their start decremented
         if self.lena and oldstart > 0:
             oldstart -= 1
         if self.lenb and newstart > 0:
             newstart -= 1
         return old, oldstart, new, newstart
 
 class binhunk(object):
     'A binary patch file.'
     def __init__(self, lr, fname):
         self.text = None
         self.delta = False
         self.hunk = ['GIT binary patch\n']
         self._fname = fname
         self._read(lr)
 
     def complete(self):
         return self.text is not None
 
     def new(self, lines):
         if self.delta:
             return [applybindelta(self.text, ''.join(lines))]
         return [self.text]
 
     def _read(self, lr):
         def getline(lr, hunk):
             l = lr.readline()
             hunk.append(l)
             return l.rstrip('\r\n')
 
         while True:
             line = getline(lr, self.hunk)
             if not line:
                 raise PatchError(_('could not extract "%s" binary data')
                                  % self._fname)
             if line.startswith('literal '):
                 size = int(line[8:].rstrip())
                 break
             if line.startswith('delta '):
                 size = int(line[6:].rstrip())
                 self.delta = True
                 break
         dec = []
         line = getline(lr, self.hunk)
         while len(line) > 1:
             l = line[0:1]
             if l <= 'Z' and l >= 'A':
                 l = ord(l) - ord('A') + 1
             else:
                 l = ord(l) - ord('a') + 27
             try:
                 dec.append(util.b85decode(line[1:])[:l])
             except ValueError as e:
                 raise PatchError(_('could not decode "%s" binary patch: %s')
                                  % (self._fname, stringutil.forcebytestr(e)))
             line = getline(lr, self.hunk)
         text = zlib.decompress(''.join(dec))
         if len(text) != size:
             raise PatchError(_('"%s" length is %d bytes, should be %d')
                              % (self._fname, len(text), size))
         self.text = text
 
 def parsefilename(str):
     # --- filename \t|space stuff
     s = str[4:].rstrip('\r\n')
     i = s.find('\t')
     if i < 0:
         i = s.find(' ')
         if i < 0:
             return s
     return s[:i]
 
 def reversehunks(hunks):
     '''reverse the signs in the hunks given as argument
 
     This function operates on hunks coming out of patch.filterpatch, that is
     a list of the form: [header1, hunk1, hunk2, header2...]. Example usage:
 
     >>> rawpatch = b"""diff --git a/folder1/g b/folder1/g
     ... --- a/folder1/g
     ... +++ b/folder1/g
     ... @@ -1,7 +1,7 @@
     ... +firstline
     ...  c
     ...  1
     ...  2
     ... + 3
     ... -4
     ...  5
     ...  d
     ... +lastline"""
     >>> hunks = parsepatch([rawpatch])
     >>> hunkscomingfromfilterpatch = []
     >>> for h in hunks:
     ...     hunkscomingfromfilterpatch.append(h)
     ...     hunkscomingfromfilterpatch.extend(h.hunks)
 
     >>> reversedhunks = reversehunks(hunkscomingfromfilterpatch)
     >>> from . import util
     >>> fp = util.stringio()
     >>> for c in reversedhunks:
     ...      c.write(fp)
     >>> fp.seek(0) or None
     >>> reversedpatch = fp.read()
     >>> print(pycompat.sysstr(reversedpatch))
     diff --git a/folder1/g b/folder1/g
     --- a/folder1/g
     +++ b/folder1/g
     @@ -1,4 +1,3 @@
     -firstline
      c
      1
      2
     @@ -2,6 +1,6 @@
      c
      1
      2
     - 3
     +4
      5
      d
     @@ -6,3 +5,2 @@
      5
      d
     -lastline
 
     '''
 
     newhunks = []
     for c in hunks:
         if util.safehasattr(c, 'reversehunk'):
             c = c.reversehunk()
         newhunks.append(c)
     return newhunks
 
 def parsepatch(originalchunks, maxcontext=None):
     """patch -> [] of headers -> [] of hunks
 
     If maxcontext is not None, trim context lines if necessary.
 
     >>> rawpatch = b'''diff --git a/folder1/g b/folder1/g
     ... --- a/folder1/g
     ... +++ b/folder1/g
     ... @@ -1,8 +1,10 @@
     ...  1
     ...  2
     ... -3
     ...  4
     ...  5
     ...  6
     ... +6.1
     ... +6.2
     ...  7
     ...  8
     ... +9'''
     >>> out = util.stringio()
     >>> headers = parsepatch([rawpatch], maxcontext=1)
     >>> for header in headers:
     ...     header.write(out)
     ...     for hunk in header.hunks:
     ...         hunk.write(out)
     >>> print(pycompat.sysstr(out.getvalue()))
     diff --git a/folder1/g b/folder1/g
     --- a/folder1/g
     +++ b/folder1/g
     @@ -2,3 +2,2 @@
      2
     -3
      4
     @@ -6,2 +5,4 @@
      6
     +6.1
     +6.2
      7
     @@ -8,1 +9,2 @@
      8
     +9
     """
     class parser(object):
         """patch parsing state machine"""
         def __init__(self):
             self.fromline = 0
             self.toline = 0
             self.proc = ''
             self.header = None
             self.context = []
             self.before = []
             self.hunk = []
             self.headers = []
 
         def addrange(self, limits):
             self.addcontext([])
             fromstart, fromend, tostart, toend, proc = limits
             self.fromline = int(fromstart)
             self.toline = int(tostart)
             self.proc = proc
 
         def addcontext(self, context):
             if self.hunk:
                 h = recordhunk(self.header, self.fromline, self.toline,
                         self.proc, self.before, self.hunk, context, maxcontext)
                 self.header.hunks.append(h)
                 self.fromline += len(self.before) + h.removed
                 self.toline += len(self.before) + h.added
                 self.before = []
                 self.hunk = []
             self.context = context
 
         def addhunk(self, hunk):
             if self.context:
                 self.before = self.context
                 self.context = []
             if self.hunk:
                 self.addcontext([])
             self.hunk = hunk
 
         def newfile(self, hdr):
             self.addcontext([])
             h = header(hdr)
             self.headers.append(h)
             self.header = h
 
         def addother(self, line):
             pass # 'other' lines are ignored
 
         def finished(self):
             self.addcontext([])
             return self.headers
 
         transitions = {
             'file': {'context': addcontext,
                      'file': newfile,
                      'hunk': addhunk,
                      'range': addrange},
             'context': {'file': newfile,
                         'hunk': addhunk,
                         'range': addrange,
                         'other': addother},
             'hunk': {'context': addcontext,
                      'file': newfile,
                      'range': addrange},
             'range': {'context': addcontext,
                       'hunk': addhunk},
             'other': {'other': addother},
             }
 
     p = parser()
     fp = stringio()
     fp.write(''.join(originalchunks))
     fp.seek(0)
 
     state = 'context'
     for newstate, data in scanpatch(fp):
         try:
             p.transitions[state][newstate](p, data)
         except KeyError:
             raise PatchError('unhandled transition: %s -> %s' %
                                    (state, newstate))
         state = newstate
     del fp
     return p.finished()
 
 def pathtransform(path, strip, prefix):
     '''turn a path from a patch into a path suitable for the repository
 
     prefix, if not empty, is expected to be normalized with a / at the end.
 
     Returns (stripped components, path in repository).
 
     >>> pathtransform(b'a/b/c', 0, b'')
     ('', 'a/b/c')
     >>> pathtransform(b'   a/b/c   ', 0, b'')
     ('', '   a/b/c')
     >>> pathtransform(b'   a/b/c   ', 2, b'')
     ('a/b/', 'c')
     >>> pathtransform(b'a/b/c', 0, b'd/e/')
     ('', 'd/e/a/b/c')
     >>> pathtransform(b'   a//b/c   ', 2, b'd/e/')
     ('a//b/', 'd/e/c')
     >>> pathtransform(b'a/b/c', 3, b'')
     Traceback (most recent call last):
     PatchError: unable to strip away 1 of 3 dirs from a/b/c
     '''
     pathlen = len(path)
     i = 0
     if strip == 0:
         return '', prefix + path.rstrip()
     count = strip
     while count > 0:
         i = path.find('/', i)
         if i == -1:
             raise PatchError(_("unable to strip away %d of %d dirs from %s") %
                              (count, strip, path))
         i += 1
         # consume '//' in the path
         while i < pathlen - 1 and path[i:i + 1] == '/':
             i += 1
         count -= 1
     return path[:i].lstrip(), prefix + path[i:].rstrip()
 
 def makepatchmeta(backend, afile_orig, bfile_orig, hunk, strip, prefix):
     nulla = afile_orig == "/dev/null"
     nullb = bfile_orig == "/dev/null"
     create = nulla and hunk.starta == 0 and hunk.lena == 0
     remove = nullb and hunk.startb == 0 and hunk.lenb == 0
     abase, afile = pathtransform(afile_orig, strip, prefix)
     gooda = not nulla and backend.exists(afile)
     bbase, bfile = pathtransform(bfile_orig, strip, prefix)
     if afile == bfile:
         goodb = gooda
     else:
         goodb = not nullb and backend.exists(bfile)
     missing = not goodb and not gooda and not create
 
     # some diff programs apparently produce patches where the afile is
     # not /dev/null, but afile starts with bfile
     abasedir = afile[:afile.rfind('/') + 1]
     bbasedir = bfile[:bfile.rfind('/') + 1]
     if (missing and abasedir == bbasedir and afile.startswith(bfile)
         and hunk.starta == 0 and hunk.lena == 0):
         create = True
         missing = False
 
     # If afile is "a/b/foo" and bfile is "a/b/foo.orig" we assume the
     # diff is between a file and its backup. In this case, the original
     # file should be patched (see original mpatch code).
     isbackup = (abase == bbase and bfile.startswith(afile))
     fname = None
     if not missing:
         if gooda and goodb:
             if isbackup:
                 fname = afile
             else:
                 fname = bfile
         elif gooda:
             fname = afile
 
     if not fname:
         if not nullb:
             if isbackup:
                 fname = afile
             else:
                 fname = bfile
         elif not nulla:
             fname = afile
         else:
             raise PatchError(_("undefined source and destination files"))
 
     gp = patchmeta(fname)
     if create:
         gp.op = 'ADD'
     elif remove:
         gp.op = 'DELETE'
     return gp
 
 def scanpatch(fp):
     """like patch.iterhunks, but yield different events
 
     - ('file',    [header_lines + fromfile + tofile])
     - ('context', [context_lines])
     - ('hunk',    [hunk_lines])
     - ('range',   (-start,len, +start,len, proc))
     """
     lines_re = re.compile(br'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)')
     lr = linereader(fp)
 
     def scanwhile(first, p):
         """scan lr while predicate holds"""
         lines = [first]
         for line in iter(lr.readline, ''):
             if p(line):
                 lines.append(line)
             else:
                 lr.push(line)
                 break
         return lines
 
     for line in iter(lr.readline, ''):
         if line.startswith('diff --git a/') or line.startswith('diff -r '):
             def notheader(line):
                 s = line.split(None, 1)
                 return not s or s[0] not in ('---', 'diff')
             header = scanwhile(line, notheader)
             fromfile = lr.readline()
             if fromfile.startswith('---'):
                 tofile = lr.readline()
                 header += [fromfile, tofile]
             else:
                 lr.push(fromfile)
             yield 'file', header
         elif line.startswith(' '):
             cs = (' ', '\\')
             yield 'context', scanwhile(line, lambda l: l.startswith(cs))
         elif line.startswith(('-', '+')):
             cs = ('-', '+', '\\')
             yield 'hunk', scanwhile(line, lambda l: l.startswith(cs))
         else:
             m = lines_re.match(line)
             if m:
                 yield 'range', m.groups()
             else:
                 yield 'other', line
 
 def scangitpatch(lr, firstline):
     """
     Git patches can emit:
     - rename a to b
     - change b
     - copy a to c
     - change c
 
     We cannot apply this sequence as-is, the renamed 'a' could not be
     found for it would have been renamed already. And we cannot copy
     from 'b' instead because 'b' would have been changed already. So
     we scan the git patch for copy and rename commands so we can
     perform the copies ahead of time.
     """
     pos = 0
     try:
         pos = lr.fp.tell()
         fp = lr.fp
     except IOError:
         fp = stringio(lr.fp.read())
     gitlr = linereader(fp)
     gitlr.push(firstline)
     gitpatches = readgitpatch(gitlr)
     fp.seek(pos)
     return gitpatches
 
 def iterhunks(fp):
     """Read a patch and yield the following events:
     - ("file", afile, bfile, firsthunk): select a new target file.
     - ("hunk", hunk): a new hunk is ready to be applied, follows a
     "file" event.
     - ("git", gitchanges): current diff is in git format, gitchanges
     maps filenames to gitpatch records. Unique event.
     """
     afile = ""
     bfile = ""
     state = None
     hunknum = 0
     emitfile = newfile = False
     gitpatches = None
 
     # our states
     BFILE = 1
     context = None
     lr = linereader(fp)
 
     for x in iter(lr.readline, ''):
         if state == BFILE and (
             (not context and x.startswith('@'))
             or (context is not False and x.startswith('***************'))
             or x.startswith('GIT binary patch')):
             gp = None
             if (gitpatches and
                 gitpatches[-1].ispatching(afile, bfile)):
                 gp = gitpatches.pop()
             if x.startswith('GIT binary patch'):
                 h = binhunk(lr, gp.path)
             else:
                 if context is None and x.startswith('***************'):
                     context = True
                 h = hunk(x, hunknum + 1, lr, context)
             hunknum += 1
             if emitfile:
                 emitfile = False
                 yield 'file', (afile, bfile, h, gp and gp.copy() or None)
             yield 'hunk', h
         elif x.startswith('diff --git a/'):
             m = gitre.match(x.rstrip(' \r\n'))
             if not m:
                 continue
             if gitpatches is None:
                 # scan whole input for git metadata
                 gitpatches = scangitpatch(lr, x)
                 yield 'git', [g.copy() for g in gitpatches
                               if g.op in ('COPY', 'RENAME')]
                 gitpatches.reverse()
             afile = 'a/' + m.group(1)
             bfile = 'b/' + m.group(2)
             while gitpatches and not gitpatches[-1].ispatching(afile, bfile):
                 gp = gitpatches.pop()
                 yield 'file', ('a/' + gp.path, 'b/' + gp.path, None, gp.copy())
             if not gitpatches:
                 raise PatchError(_('failed to synchronize metadata for "%s"')
                                  % afile[2:])
             newfile = True
         elif x.startswith('---'):
             # check for a unified diff
             l2 = lr.readline()
             if not l2.startswith('+++'):
                 lr.push(l2)
                 continue
             newfile = True
             context = False
             afile = parsefilename(x)
             bfile = parsefilename(l2)
         elif x.startswith('***'):
             # check for a context diff
             l2 = lr.readline()
             if not l2.startswith('---'):
                 lr.push(l2)
                 continue
             l3 = lr.readline()
             lr.push(l3)
             if not l3.startswith("***************"):
                 lr.push(l2)
                 continue
             newfile = True
             context = True
             afile = parsefilename(x)
             bfile = parsefilename(l2)
 
         if newfile:
             newfile = False
             emitfile = True
             state = BFILE
             hunknum = 0
 
     while gitpatches:
         gp = gitpatches.pop()
         yield 'file', ('a/' + gp.path, 'b/' + gp.path, None, gp.copy())
 
 def applybindelta(binchunk, data):
     """Apply a binary delta hunk
     The algorithm used is the algorithm from git's patch-delta.c
     """
     def deltahead(binchunk):
         i = 0
         for c in pycompat.bytestr(binchunk):
             i += 1
             if not (ord(c) & 0x80):
                 return i
         return i
     out = ""
     s = deltahead(binchunk)
     binchunk = binchunk[s:]
     s = deltahead(binchunk)
     binchunk = binchunk[s:]
     i = 0
     while i < len(binchunk):
         cmd = ord(binchunk[i:i + 1])
         i += 1
         if (cmd & 0x80):
             offset = 0
             size = 0
             if (cmd & 0x01):
                 offset = ord(binchunk[i:i + 1])
                 i += 1
             if (cmd & 0x02):
                 offset |= ord(binchunk[i:i + 1]) << 8
                 i += 1
             if (cmd & 0x04):
                 offset |= ord(binchunk[i:i + 1]) << 16
                 i += 1
             if (cmd & 0x08):
                 offset |= ord(binchunk[i:i + 1]) << 24
                 i += 1
             if (cmd & 0x10):
                 size = ord(binchunk[i:i + 1])
                 i += 1
             if (cmd & 0x20):
                 size |= ord(binchunk[i:i + 1]) << 8
                 i += 1
             if (cmd & 0x40):
                 size |= ord(binchunk[i:i + 1]) << 16
                 i += 1
             if size == 0:
                 size = 0x10000
             offset_end = offset + size
             out += data[offset:offset_end]
         elif cmd != 0:
             offset_end = i + cmd
             out += binchunk[i:offset_end]
             i += cmd
         else:
             raise PatchError(_('unexpected delta opcode 0'))
     return out
 
 def applydiff(ui, fp, backend, store, strip=1, prefix='', eolmode='strict'):
     """Reads a patch from fp and tries to apply it.
 
     Returns 0 for a clean patch, -1 if any rejects were found and 1 if
     there was any fuzz.
 
     If 'eolmode' is 'strict', the patch content and patched file are
     read in binary mode. Otherwise, line endings are ignored when
     patching then normalized according to 'eolmode'.
     """
     return _applydiff(ui, fp, patchfile, backend, store, strip=strip,
                       prefix=prefix, eolmode=eolmode)
 
 def _canonprefix(repo, prefix):
     if prefix:
         prefix = pathutil.canonpath(repo.root, repo.getcwd(), prefix)
         if prefix != '':
             prefix += '/'
     return prefix
 
 def _applydiff(ui, fp, patcher, backend, store, strip=1, prefix='',
                eolmode='strict'):
     prefix = _canonprefix(backend.repo, prefix)
     def pstrip(p):
         return pathtransform(p, strip - 1, prefix)[1]
 
     rejects = 0
     err = 0
     current_file = None
 
     for state, values in iterhunks(fp):
         if state == 'hunk':
             if not current_file:
                 continue
             ret = current_file.apply(values)
             if ret > 0:
                 err = 1
         elif state == 'file':
             if current_file:
                 rejects += current_file.close()
                 current_file = None
             afile, bfile, first_hunk, gp = values
             if gp:
                 gp.path = pstrip(gp.path)
                 if gp.oldpath:
                     gp.oldpath = pstrip(gp.oldpath)
             else:
                 gp = makepatchmeta(backend, afile, bfile, first_hunk, strip,
                                    prefix)
             if gp.op == 'RENAME':
                 backend.unlink(gp.oldpath)
             if not first_hunk:
                 if gp.op == 'DELETE':
                     backend.unlink(gp.path)
                     continue
                 data, mode = None, None
                 if gp.op in ('RENAME', 'COPY'):
                     data, mode = store.getfile(gp.oldpath)[:2]
                     if data is None:
                         # This means that the old path does not exist
                         raise PatchError(_("source file '%s' does not exist")
                                            % gp.oldpath)
                 if gp.mode:
                     mode = gp.mode
                     if gp.op == 'ADD':
                         # Added files without content have no hunk and
                         # must be created
                         data = ''
                 if data or mode:
                     if (gp.op in ('ADD', 'RENAME', 'COPY')
                         and backend.exists(gp.path)):
                         raise PatchError(_("cannot create %s: destination "
                                            "already exists") % gp.path)
                     backend.setfile(gp.path, data, mode, gp.oldpath)
                 continue
             try:
                 current_file = patcher(ui, gp, backend, store,
                                        eolmode=eolmode)
             except PatchError as inst:
                 ui.warn(str(inst) + '\n')
                 current_file = None
                 rejects += 1
                 continue
         elif state == 'git':
             for gp in values:
                 path = pstrip(gp.oldpath)
                 data, mode = backend.getfile(path)
                 if data is None:
                     # The error ignored here will trigger a getfile()
                     # error in a place more appropriate for error
                     # handling, and will not interrupt the patching
                     # process.
                     pass
                 else:
                     store.setfile(path, data, mode)
         else:
             raise error.Abort(_('unsupported parser state: %s') % state)
 
     if current_file:
         rejects += current_file.close()
 
     if rejects:
         return -1
     return err
 
 def _externalpatch(ui, repo, patcher, patchname, strip, files,
                    similarity):
     """use <patcher> to apply <patchname> to the working directory.
     returns whether patch was applied with fuzz factor."""
 
     fuzz = False
     args = []
     cwd = repo.root
     if cwd:
         args.append('-d %s' % procutil.shellquote(cwd))
     cmd = ('%s %s -p%d < %s'
            % (patcher, ' '.join(args), strip, procutil.shellquote(patchname)))
     ui.debug('Using external patch tool: %s\n' % cmd)
     fp = procutil.popen(cmd, 'rb')
     try:
         for line in util.iterfile(fp):
             line = line.rstrip()
             ui.note(line + '\n')
             if line.startswith('patching file '):
                 pf = util.parsepatchoutput(line)
                 printed_file = False
                 files.add(pf)
             elif line.find('with fuzz') >= 0:
                 fuzz = True
                 if not printed_file:
                     ui.warn(pf + '\n')
                     printed_file = True
                 ui.warn(line + '\n')
             elif line.find('saving rejects to file') >= 0:
                 ui.warn(line + '\n')
             elif line.find('FAILED') >= 0:
                 if not printed_file:
                     ui.warn(pf + '\n')
                     printed_file = True
                 ui.warn(line + '\n')
     finally:
         if files:
             scmutil.marktouched(repo, files, similarity)
     code = fp.close()
     if code:
         raise PatchError(_("patch command failed: %s") %
                          procutil.explainexit(code))
     return fuzz
 
 def patchbackend(ui, backend, patchobj, strip, prefix, files=None,
                  eolmode='strict'):
     if files is None:
         files = set()
     if eolmode is None:
         eolmode = ui.config('patch', 'eol')
     if eolmode.lower() not in eolmodes:
         raise error.Abort(_('unsupported line endings type: %s') % eolmode)
     eolmode = eolmode.lower()
 
     store = filestore()
     try:
         fp = open(patchobj, 'rb')
     except TypeError:
         fp = patchobj
     try:
         ret = applydiff(ui, fp, backend, store, strip=strip, prefix=prefix,
                         eolmode=eolmode)
     finally:
         if fp != patchobj:
             fp.close()
         files.update(backend.close())
         store.close()
     if ret < 0:
         raise PatchError(_('patch failed to apply'))
     return ret > 0
 
 def internalpatch(ui, repo, patchobj, strip, prefix='', files=None,
                   eolmode='strict', similarity=0):
     """use builtin patch to apply <patchobj> to the working directory.
     returns whether patch was applied with fuzz factor."""
     backend = workingbackend(ui, repo, similarity)
     return patchbackend(ui, backend, patchobj, strip, prefix, files, eolmode)
 
 def patchrepo(ui, repo, ctx, store, patchobj, strip, prefix, files=None,
               eolmode='strict'):
     backend = repobackend(ui, repo, ctx, store)
     return patchbackend(ui, backend, patchobj, strip, prefix, files, eolmode)
 
 def patch(ui, repo, patchname, strip=1, prefix='', files=None, eolmode='strict',
           similarity=0):
     """Apply <patchname> to the working directory.
 
     'eolmode' specifies how end of lines should be handled. It can be:
     - 'strict': inputs are read in binary mode, EOLs are preserved
     - 'crlf': EOLs are ignored when patching and reset to CRLF
     - 'lf': EOLs are ignored when patching and reset to LF
     - None: get it from user settings, default to 'strict'
     'eolmode' is ignored when using an external patcher program.
 
     Returns whether patch was applied with fuzz factor.
     """
     patcher = ui.config('ui', 'patch')
     if files is None:
         files = set()
     if patcher:
         return _externalpatch(ui, repo, patcher, patchname, strip,
                               files, similarity)
     return internalpatch(ui, repo, patchname, strip, prefix, files, eolmode,
                          similarity)
 
 def changedfiles(ui, repo, patchpath, strip=1, prefix=''):
     backend = fsbackend(ui, repo.root)
     prefix = _canonprefix(repo, prefix)
     with open(patchpath, 'rb') as fp:
         changed = set()
         for state, values in iterhunks(fp):
             if state == 'file':
                 afile, bfile, first_hunk, gp = values
                 if gp:
                     gp.path = pathtransform(gp.path, strip - 1, prefix)[1]
                     if gp.oldpath:
                         gp.oldpath = pathtransform(gp.oldpath, strip - 1,
                                                    prefix)[1]
                 else:
                     gp = makepatchmeta(backend, afile, bfile, first_hunk, strip,
                                        prefix)
                 changed.add(gp.path)
                 if gp.op == 'RENAME':
                     changed.add(gp.oldpath)
             elif state not in ('hunk', 'git'):
                 raise error.Abort(_('unsupported parser state: %s') % state)
         return changed
 
 class GitDiffRequired(Exception):
     pass
 
 diffopts = diffutil.diffallopts
 diffallopts = diffutil.diffallopts
 difffeatureopts = diffutil.difffeatureopts
 
 def diff(repo, node1=None, node2=None, match=None, changes=None,
          opts=None, losedatafn=None, pathfn=None, copy=None,
          copysourcematch=None, hunksfilterfn=None):
     '''yields diff of changes to files between two nodes, or node and
     working directory.
 
     if node1 is None, use first dirstate parent instead.
     if node2 is None, compare node1 with working directory.
 
     losedatafn(**kwarg) is a callable run when opts.upgrade=True and
     every time some change cannot be represented with the current
     patch format. Return False to upgrade to git patch format, True to
     accept the loss or raise an exception to abort the diff. It is
     called with the name of current file being diffed as 'fn'. If set
     to None, patches will always be upgraded to git format when
     necessary.
 
     prefix is a filename prefix that is prepended to all filenames on
     display (used for subrepos).
 
     relroot, if not empty, must be normalized with a trailing /. Any match
     patterns that fall outside it will be ignored.
 
     copy, if not empty, should contain mappings {dst@y: src@x} of copy
     information.
 
     if copysourcematch is not None, then copy sources will be filtered by this
     matcher
 
     hunksfilterfn, if not None, should be a function taking a filectx and
     hunks generator that may yield filtered hunks.
     '''
     if not node1 and not node2:
         node1 = repo.dirstate.p1()
 
     ctx1 = repo[node1]
     ctx2 = repo[node2]
 
     for fctx1, fctx2, hdr, hunks in diffhunks(
             repo, ctx1=ctx1, ctx2=ctx2, match=match, changes=changes, opts=opts,
             losedatafn=losedatafn, pathfn=pathfn, copy=copy,
             copysourcematch=copysourcematch):
         if hunksfilterfn is not None:
             # If the file has been removed, fctx2 is None; but this should
             # not occur here since we catch removed files early in
             # logcmdutil.getlinerangerevs() for 'hg log -L'.
             assert fctx2 is not None, (
                 'fctx2 unexpectly None in diff hunks filtering')
             hunks = hunksfilterfn(fctx2, hunks)
         text = ''.join(sum((list(hlines) for hrange, hlines in hunks), []))
         if hdr and (text or len(hdr) > 1):
             yield '\n'.join(hdr) + '\n'
         if text:
             yield text
 
 def diffhunks(repo, ctx1, ctx2, match=None, changes=None, opts=None,
               losedatafn=None, pathfn=None, copy=None, copysourcematch=None):
     """Yield diff of changes to files in the form of (`header`, `hunks`) tuples
     where `header` is a list of diff headers and `hunks` is an iterable of
     (`hunkrange`, `hunklines`) tuples.
 
     See diff() for the meaning of parameters.
     """
 
     if opts is None:
         opts = mdiff.defaultopts
 
     def lrugetfilectx():
         cache = {}
         order = collections.deque()
         def getfilectx(f, ctx):
             fctx = ctx.filectx(f, filelog=cache.get(f))
             if f not in cache:
                 if len(cache) > 20:
                     del cache[order.popleft()]
                 cache[f] = fctx.filelog()
             else:
                 order.remove(f)
             order.append(f)
             return fctx
         return getfilectx
     getfilectx = lrugetfilectx()
 
     if not changes:
         changes = ctx1.status(ctx2, match=match)
     modified, added, removed = changes[:3]
 
     if not modified and not added and not removed:
         return []
 
     if repo.ui.debugflag:
         hexfunc = hex
     else:
         hexfunc = short
     revs = [hexfunc(node) for node in [ctx1.node(), ctx2.node()] if node]
 
     if copy is None:
         copy = {}
         if opts.git or opts.upgrade:
             copy = copies.pathcopies(ctx1, ctx2, match=match)
 
     if copysourcematch:
         # filter out copies where source side isn't inside the matcher
         # (copies.pathcopies() already filtered out the destination)
         copy = {dst: src for dst, src in copy.iteritems()
                 if copysourcematch(src)}
 
     modifiedset = set(modified)
     addedset = set(added)
     removedset = set(removed)
     for f in modified:
         if f not in ctx1:
             # Fix up added, since merged-in additions appear as
             # modifications during merges
             modifiedset.remove(f)
             addedset.add(f)
     for f in removed:
         if f not in ctx1:
             # Merged-in additions that are then removed are reported as removed.
             # They are not in ctx1, so We don't want to show them in the diff.
             removedset.remove(f)
     modified = sorted(modifiedset)
     added = sorted(addedset)
     removed = sorted(removedset)
     for dst, src in list(copy.items()):
         if src not in ctx1:
             # Files merged in during a merge and then copied/renamed are
             # reported as copies. We want to show them in the diff as additions.
             del copy[dst]
 
     prefetchmatch = scmutil.matchfiles(
         repo, list(modifiedset | addedset | removedset))
     scmutil.prefetchfiles(repo, [ctx1.rev(), ctx2.rev()], prefetchmatch)
 
     def difffn(opts, losedata):
         return trydiff(repo, revs, ctx1, ctx2, modified, added, removed,
                        copy, getfilectx, opts, losedata, pathfn)
     if opts.upgrade and not opts.git:
         try:
             def losedata(fn):
                 if not losedatafn or not losedatafn(fn=fn):
                     raise GitDiffRequired
             # Buffer the whole output until we are sure it can be generated
             return list(difffn(opts.copy(git=False), losedata))
         except GitDiffRequired:
             return difffn(opts.copy(git=True), None)
     else:
         return difffn(opts, None)
 
 def diffsinglehunk(hunklines):
     """yield tokens for a list of lines in a single hunk"""
     for line in hunklines:
         # chomp
         chompline = line.rstrip('\r\n')
         # highlight tabs and trailing whitespace
         stripline = chompline.rstrip()
         if line.startswith('-'):
             label = 'diff.deleted'
         elif line.startswith('+'):
             label = 'diff.inserted'
         else:
             raise error.ProgrammingError('unexpected hunk line: %s' % line)
         for token in tabsplitter.findall(stripline):
             if token.startswith('\t'):
                 yield (token, 'diff.tab')
             else:
                 yield (token, label)
 
         if chompline != stripline:
             yield (chompline[len(stripline):], 'diff.trailingwhitespace')
         if chompline != line:
             yield (line[len(chompline):], '')
 
 def diffsinglehunkinline(hunklines):
     """yield tokens for a list of lines in a single hunk, with inline colors"""
     # prepare deleted, and inserted content
     a = ''
     b = ''
     for line in hunklines:
         if line[0:1] == '-':
             a += line[1:]
         elif line[0:1] == '+':
             b += line[1:]
         else:
             raise error.ProgrammingError('unexpected hunk line: %s' % line)
     # fast path: if either side is empty, use diffsinglehunk
     if not a or not b:
         for t in diffsinglehunk(hunklines):
             yield t
         return
     # re-split the content into words
     al = wordsplitter.findall(a)
     bl = wordsplitter.findall(b)
     # re-arrange the words to lines since the diff algorithm is line-based
     aln = [s if s == '\n' else s + '\n' for s in al]
     bln = [s if s == '\n' else s + '\n' for s in bl]
     an = ''.join(aln)
     bn = ''.join(bln)
     # run the diff algorithm, prepare atokens and btokens
     atokens = []
     btokens = []
     blocks = mdiff.allblocks(an, bn, lines1=aln, lines2=bln)
     for (a1, a2, b1, b2), btype in blocks:
         changed = btype == '!'
         for token in mdiff.splitnewlines(''.join(al[a1:a2])):
             atokens.append((changed, token))
         for token in mdiff.splitnewlines(''.join(bl[b1:b2])):
             btokens.append((changed, token))
 
     # yield deleted tokens, then inserted ones
     for prefix, label, tokens in [('-', 'diff.deleted', atokens),
                                   ('+', 'diff.inserted', btokens)]:
         nextisnewline = True
         for changed, token in tokens:
             if nextisnewline:
                 yield (prefix, label)
                 nextisnewline = False
             # special handling line end
             isendofline = token.endswith('\n')
             if isendofline:
                 chomp = token[:-1] # chomp
                 if chomp.endswith('\r'):
                     chomp = chomp[:-1]
                 endofline = token[len(chomp):]
                 token = chomp.rstrip() # detect spaces at the end
                 endspaces = chomp[len(token):]
             # scan tabs
             for maybetab in tabsplitter.findall(token):
                 if b'\t' == maybetab[0:1]:
                     currentlabel = 'diff.tab'
                 else:
                     if changed:
                         currentlabel = label + '.changed'
                     else:
                         currentlabel = label + '.unchanged'
                 yield (maybetab, currentlabel)
             if isendofline:
                 if endspaces:
                     yield (endspaces, 'diff.trailingwhitespace')
                 yield (endofline, '')
                 nextisnewline = True
 
 def difflabel(func, *args, **kw):
     '''yields 2-tuples of (output, label) based on the output of func()'''
     if kw.get(r'opts') and kw[r'opts'].worddiff:
         dodiffhunk = diffsinglehunkinline
     else:
         dodiffhunk = diffsinglehunk
     headprefixes = [('diff', 'diff.diffline'),
                     ('copy', 'diff.extended'),
                     ('rename', 'diff.extended'),
                     ('old', 'diff.extended'),
                     ('new', 'diff.extended'),
                     ('deleted', 'diff.extended'),
                     ('index', 'diff.extended'),
                     ('similarity', 'diff.extended'),
                     ('---', 'diff.file_a'),
                     ('+++', 'diff.file_b')]
     textprefixes = [('@', 'diff.hunk'),
                     # - and + are handled by diffsinglehunk
                    ]
     head = False
 
     # buffers a hunk, i.e. adjacent "-", "+" lines without other changes.
     hunkbuffer = []
     def consumehunkbuffer():
         if hunkbuffer:
             for token in dodiffhunk(hunkbuffer):
                 yield token
             hunkbuffer[:] = []
 
     for chunk in func(*args, **kw):
         lines = chunk.split('\n')
         linecount = len(lines)
         for i, line in enumerate(lines):
             if head:
                 if line.startswith('@'):
                     head = False
             else:
                 if line and not line.startswith((' ', '+', '-', '@', '\\')):
                     head = True
             diffline = False
             if not head and line and line.startswith(('+', '-')):
                 diffline = True
 
             prefixes = textprefixes
             if head:
                 prefixes = headprefixes
             if diffline:
                 # buffered
                 bufferedline = line
                 if i + 1 < linecount:
                     bufferedline += "\n"
                 hunkbuffer.append(bufferedline)
             else:
                 # unbuffered
                 for token in consumehunkbuffer():
                     yield token
                 stripline = line.rstrip()
                 for prefix, label in prefixes:
                     if stripline.startswith(prefix):
                         yield (stripline, label)
                         if line != stripline:
                             yield (line[len(stripline):],
                                    'diff.trailingwhitespace')
                         break
                 else:
                     yield (line, '')
                 if i + 1 < linecount:
                     yield ('\n', '')
         for token in consumehunkbuffer():
             yield token
 
 def diffui(*args, **kw):
     '''like diff(), but yields 2-tuples of (output, label) for ui.write()'''
     return difflabel(diff, *args, **kw)
 
 def _filepairs(modified, added, removed, copy, opts):
     '''generates tuples (f1, f2, copyop), where f1 is the name of the file
     before and f2 is the the name after. For added files, f1 will be None,
     and for removed files, f2 will be None. copyop may be set to None, 'copy'
     or 'rename' (the latter two only if opts.git is set).'''
     gone = set()
 
     copyto = dict([(v, k) for k, v in copy.items()])
 
     addedset, removedset = set(added), set(removed)
 
     for f in sorted(modified + added + removed):
         copyop = None
         f1, f2 = f, f
         if f in addedset:
             f1 = None
             if f in copy:
                 if opts.git:
                     f1 = copy[f]
                     if f1 in removedset and f1 not in gone:
                         copyop = 'rename'
                         gone.add(f1)
                     else:
                         copyop = 'copy'
         elif f in removedset:
             f2 = None
             if opts.git:
                 # have we already reported a copy above?
                 if (f in copyto and copyto[f] in addedset
                     and copy[copyto[f]] == f):
                     continue
         yield f1, f2, copyop
 
 def trydiff(repo, revs, ctx1, ctx2, modified, added, removed,
             copy, getfilectx, opts, losedatafn, pathfn):
     '''given input data, generate a diff and yield it in blocks
 
     If generating a diff would lose data like flags or binary data and
     losedatafn is not None, it will be called.
 
     pathfn is applied to every path in the diff output.
     '''
 
     def gitindex(text):
         if not text:
             text = ""
         l = len(text)
         s = hashlib.sha1('blob %d\0' % l)
         s.update(text)
         return hex(s.digest())
 
     if opts.noprefix:
         aprefix = bprefix = ''
     else:
         aprefix = 'a/'
         bprefix = 'b/'
 
     def diffline(f, revs):
         revinfo = ' '.join(["-r %s" % rev for rev in revs])
         return 'diff %s %s' % (revinfo, f)
 
     def isempty(fctx):
         return fctx is None or fctx.size() == 0
 
     date1 = dateutil.datestr(ctx1.date())
     date2 = dateutil.datestr(ctx2.date())
 
     gitmode = {'l': '120000', 'x': '100755', '': '100644'}
 
     if not pathfn:
         pathfn = lambda f: f
 
     for f1, f2, copyop in _filepairs(modified, added, removed, copy, opts):
         content1 = None
         content2 = None
         fctx1 = None
         fctx2 = None
         flag1 = None
         flag2 = None
         if f1:
             fctx1 = getfilectx(f1, ctx1)
             if opts.git or losedatafn:
                 flag1 = ctx1.flags(f1)
         if f2:
             fctx2 = getfilectx(f2, ctx2)
             if opts.git or losedatafn:
                 flag2 = ctx2.flags(f2)
         # if binary is True, output "summary" or "base85", but not "text diff"
         if opts.text:
             binary = False
         else:
             binary = any(f.isbinary() for f in [fctx1, fctx2] if f is not None)
 
         if losedatafn and not opts.git:
             if (binary or
                 # copy/rename
                 f2 in copy or
                 # empty file creation
                 (not f1 and isempty(fctx2)) or
                 # empty file deletion
                 (isempty(fctx1) and not f2) or
                 # create with flags
                 (not f1 and flag2) or
                 # change flags
                 (f1 and f2 and flag1 != flag2)):
                 losedatafn(f2 or f1)
 
         path1 = pathfn(f1 or f2)
         path2 = pathfn(f2 or f1)
         header = []
         if opts.git:
             header.append('diff --git %s%s %s%s' %
                           (aprefix, path1, bprefix, path2))
             if not f1: # added
                 header.append('new file mode %s' % gitmode[flag2])
             elif not f2: # removed
                 header.append('deleted file mode %s' % gitmode[flag1])
             else:  # modified/copied/renamed
                 mode1, mode2 = gitmode[flag1], gitmode[flag2]
                 if mode1 != mode2:
                     header.append('old mode %s' % mode1)
                     header.append('new mode %s' % mode2)
                 if copyop is not None:
                     if opts.showsimilarity:
                         sim = similar.score(ctx1[path1], ctx2[path2]) * 100
                         header.append('similarity index %d%%' % sim)
                     header.append('%s from %s' % (copyop, path1))
                     header.append('%s to %s' % (copyop, path2))
-        elif revs and not repo.ui.quiet:
+        elif revs:
             header.append(diffline(path1, revs))
 
         #  fctx.is  | diffopts                | what to   | is fctx.data()
         #  binary() | text nobinary git index | output?   | outputted?
         # ------------------------------------|----------------------------
         #  yes      | no   no       no  *     | summary   | no
         #  yes      | no   no       yes *     | base85    | yes
         #  yes      | no   yes      no  *     | summary   | no
         #  yes      | no   yes      yes 0     | summary   | no
         #  yes      | no   yes      yes >0    | summary   | semi [1]
         #  yes      | yes  *        *   *     | text diff | yes
         #  no       | *    *        *   *     | text diff | yes
         # [1]: hash(fctx.data()) is outputted. so fctx.data() cannot be faked
         if binary and (not opts.git or (opts.git and opts.nobinary and not
                                         opts.index)):
             # fast path: no binary content will be displayed, content1 and
             # content2 are only used for equivalent test. cmp() could have a
             # fast path.
             if fctx1 is not None:
                 content1 = b'\0'
             if fctx2 is not None:
                 if fctx1 is not None and not fctx1.cmp(fctx2):
                     content2 = b'\0' # not different
                 else:
                     content2 = b'\0\0'
         else:
             # normal path: load contents
             if fctx1 is not None:
                 content1 = fctx1.data()
             if fctx2 is not None:
                 content2 = fctx2.data()
 
         if binary and opts.git and not opts.nobinary:
             text = mdiff.b85diff(content1, content2)
             if text:
                 header.append('index %s..%s' %
                               (gitindex(content1), gitindex(content2)))
             hunks = (None, [text]),
         else:
             if opts.git and opts.index > 0:
                 flag = flag1
                 if flag is None:
                     flag = flag2
                 header.append('index %s..%s %s' %
                               (gitindex(content1)[0:opts.index],
                                gitindex(content2)[0:opts.index],
                                gitmode[flag]))
 
             uheaders, hunks = mdiff.unidiff(content1, date1,
                                             content2, date2,
                                             path1, path2,
                                             binary=binary, opts=opts)
             header.extend(uheaders)
         yield fctx1, fctx2, header, hunks
 
 def diffstatsum(stats):
     maxfile, maxtotal, addtotal, removetotal, binary = 0, 0, 0, 0, False
     for f, a, r, b in stats:
         maxfile = max(maxfile, encoding.colwidth(f))
         maxtotal = max(maxtotal, a + r)
         addtotal += a
         removetotal += r
         binary = binary or b
 
     return maxfile, maxtotal, addtotal, removetotal, binary
 
 def diffstatdata(lines):
     diffre = re.compile(br'^diff .*-r [a-z0-9]+\s(.*)$')
 
     results = []
     filename, adds, removes, isbinary = None, 0, 0, False
 
     def addresult():
         if filename:
             results.append((filename, adds, removes, isbinary))
 
     # inheader is used to track if a line is in the
     # header portion of the diff.  This helps properly account
     # for lines that start with '--' or '++'
     inheader = False
 
     for line in lines:
         if line.startswith('diff'):
             addresult()
             # starting a new file diff
             # set numbers to 0 and reset inheader
             inheader = True
             adds, removes, isbinary = 0, 0, False
             if line.startswith('diff --git a/'):
                 filename = gitre.search(line).group(2)
             elif line.startswith('diff -r'):
                 # format: "diff -r ... -r ... filename"
                 filename = diffre.search(line).group(1)
         elif line.startswith('@@'):
             inheader = False
         elif line.startswith('+') and not inheader:
             adds += 1
         elif line.startswith('-') and not inheader:
             removes += 1
         elif (line.startswith('GIT binary patch') or
               line.startswith('Binary file')):
             isbinary = True
         elif line.startswith('rename from'):
             filename = line[12:]
         elif line.startswith('rename to'):
             filename += ' => %s' % line[10:]
     addresult()
     return results
 
 def diffstat(lines, width=80):
     output = []
     stats = diffstatdata(lines)
     maxname, maxtotal, totaladds, totalremoves, hasbinary = diffstatsum(stats)
 
     countwidth = len(str(maxtotal))
     if hasbinary and countwidth < 3:
         countwidth = 3
     graphwidth = width - countwidth - maxname - 6
     if graphwidth < 10:
         graphwidth = 10
 
     def scale(i):
         if maxtotal <= graphwidth:
             return i
         # If diffstat runs out of room it doesn't print anything,
         # which isn't very useful, so always print at least one + or -
         # if there were at least some changes.
         return max(i * graphwidth // maxtotal, int(bool(i)))
 
     for filename, adds, removes, isbinary in stats:
         if isbinary:
             count = 'Bin'
         else:
             count = '%d' % (adds + removes)
         pluses = '+' * scale(adds)
         minuses = '-' * scale(removes)
         output.append(' %s%s |  %*s %s%s\n' %
                       (filename, ' ' * (maxname - encoding.colwidth(filename)),
                        countwidth, count, pluses, minuses))
 
     if stats:
         output.append(_(' %d files changed, %d insertions(+), '
                         '%d deletions(-)\n')
                       % (len(stats), totaladds, totalremoves))
 
     return ''.join(output)
 
 def diffstatui(*args, **kw):
     '''like diffstat(), but yields 2-tuples of (output, label) for
     ui.write()
     '''
 
     for line in diffstat(*args, **kw).splitlines():
         if line and line[-1] in '+-':
             name, graph = line.rsplit(' ', 1)
             yield (name + ' ', '')
             m = re.search(br'\++', graph)
             if m:
                 yield (m.group(0), 'diffstat.inserted')
             m = re.search(br'-+', graph)
             if m:
                 yield (m.group(0), 'diffstat.deleted')
         else:
             yield (line, '')
         yield ('\n', '')

tests/test-commit.t

@@ -1,833 +1,836 b''
 commit date test
 
   $ hg init test
   $ cd test
   $ echo foo > foo
   $ hg add foo
   $ cat > $TESTTMP/checkeditform.sh <<EOF
   > env | grep HGEDITFORM
   > true
   > EOF
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg commit -m ""
   HGEDITFORM=commit.normal.normal
   abort: empty commit message
   [255]
   $ hg commit -d '0 0' -m commit-1
   $ echo foo >> foo
   $ hg commit -d '1 4444444' -m commit-3
   hg: parse error: impossible time zone offset: 4444444
   [255]
   $ hg commit -d '1	15.1' -m commit-4
   hg: parse error: invalid date: '1\t15.1'
   [255]
   $ hg commit -d 'foo bar' -m commit-5
   hg: parse error: invalid date: 'foo bar'
   [255]
   $ hg commit -d ' 1 4444' -m commit-6
   $ hg commit -d '111111111111 0' -m commit-7
   hg: parse error: date exceeds 32 bits: 111111111111
   [255]
   $ hg commit -d '-111111111111 0' -m commit-7
   hg: parse error: date exceeds 32 bits: -111111111111
   [255]
   $ echo foo >> foo
   $ hg commit -d '1901-12-13 20:45:52 +0000' -m commit-7-2
   $ echo foo >> foo
   $ hg commit -d '-2147483648 0' -m commit-7-3
   $ hg log -T '{rev} {date|isodatesec}\n' -l2
   3 1901-12-13 20:45:52 +0000
   2 1901-12-13 20:45:52 +0000
   $ hg commit -d '1901-12-13 20:45:51 +0000' -m commit-7
   hg: parse error: date exceeds 32 bits: -2147483649
   [255]
   $ hg commit -d '-2147483649 0' -m commit-7
   hg: parse error: date exceeds 32 bits: -2147483649
   [255]
 
 commit added file that has been deleted
 
   $ echo bar > bar
   $ hg add bar
   $ rm bar
   $ hg commit -m commit-8
   nothing changed (1 missing files, see 'hg status')
   [1]
   $ hg commit -m commit-8-2 bar
   abort: bar: file not found!
   [255]
 
   $ hg -q revert -a --no-backup
 
   $ mkdir dir
   $ echo boo > dir/file
   $ hg add
   adding dir/file
   $ hg -v commit -m commit-9 dir
   committing files:
   dir/file
   committing manifest
   committing changelog
   committed changeset 4:1957363f1ced
 
   $ echo > dir.file
   $ hg add
   adding dir.file
   $ hg commit -m commit-10 dir dir.file
   abort: dir: no match under directory!
   [255]
 
   $ echo >> dir/file
   $ mkdir bleh
   $ mkdir dir2
   $ cd bleh
   $ hg commit -m commit-11 .
   abort: bleh: no match under directory!
   [255]
   $ hg commit -m commit-12 ../dir ../dir2
   abort: dir2: no match under directory!
   [255]
   $ hg -v commit -m commit-13 ../dir
   committing files:
   dir/file
   committing manifest
   committing changelog
   committed changeset 5:a31d8f87544a
   $ cd ..
 
   $ hg commit -m commit-14 does-not-exist
   abort: does-not-exist: * (glob)
   [255]
 
 #if symlink
   $ ln -s foo baz
   $ hg commit -m commit-15 baz
   abort: baz: file not tracked!
   [255]
   $ rm baz
 #endif
 
   $ touch quux
   $ hg commit -m commit-16 quux
   abort: quux: file not tracked!
   [255]
   $ echo >> dir/file
   $ hg -v commit -m commit-17 dir/file
   committing files:
   dir/file
   committing manifest
   committing changelog
   committed changeset 6:32d054c9d085
 
 An empty date was interpreted as epoch origin
 
   $ echo foo >> foo
   $ hg commit -d '' -m commit-no-date --config devel.default-date=
   $ hg tip --template '{date|isodate}\n' | grep '1970'
   [1]
 
 Using the advanced --extra flag
 
   $ echo "[extensions]" >> $HGRCPATH
   $ echo "commitextras=" >> $HGRCPATH
   $ hg status
   ? quux
   $ hg add quux
   $ hg commit -m "adding internal used extras" --extra amend_source=hash
   abort: key 'amend_source' is used internally, can't be set manually
   [255]
   $ hg commit -m "special chars in extra" --extra id@phab=214
   abort: keys can only contain ascii letters, digits, '_' and '-'
   [255]
   $ hg commit -m "empty key" --extra =value
   abort: unable to parse '=value', keys can't be empty
   [255]
   $ hg commit -m "adding extras" --extra sourcehash=foo --extra oldhash=bar
   $ hg log -r . -T '{extras % "{extra}\n"}'
   branch=default
   oldhash=bar
   sourcehash=foo
 
 Failed commit with --addremove should not update dirstate
 
   $ echo foo > newfile
   $ hg status
   ? newfile
   $ HGEDITOR=false hg ci --addremove
   adding newfile
   abort: edit failed: false exited with status 1
   [255]
   $ hg status
   ? newfile
 
 Make sure we do not obscure unknown requires file entries (issue2649)
 
   $ echo foo >> foo
   $ echo fake >> .hg/requires
   $ hg commit -m bla
   abort: repository requires features unknown to this Mercurial: fake!
   (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
   [255]
 
   $ cd ..
 
 
 partial subdir commit test
 
   $ hg init test2
   $ cd test2
   $ mkdir foo
   $ echo foo > foo/foo
   $ mkdir bar
   $ echo bar > bar/bar
   $ hg add
   adding bar/bar
   adding foo/foo
   $ HGEDITOR=cat hg ci -e -m commit-subdir-1 foo
   commit-subdir-1
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: added foo/foo
 
 
   $ hg ci -m commit-subdir-2 bar
 
 subdir log 1
 
   $ hg log -v foo
   changeset:   0:f97e73a25882
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       foo/foo
   description:
   commit-subdir-1
   
   
 
 subdir log 2
 
   $ hg log -v bar
   changeset:   1:aa809156d50d
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       bar/bar
   description:
   commit-subdir-2
   
   
 
 full log
 
   $ hg log -v
   changeset:   1:aa809156d50d
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       bar/bar
   description:
   commit-subdir-2
   
   
   changeset:   0:f97e73a25882
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       foo/foo
   description:
   commit-subdir-1
   
   
   $ cd ..
 
 
 dot and subdir commit test
 
   $ hg init test3
   $ echo commit-foo-subdir > commit-log-test
   $ cd test3
   $ mkdir foo
   $ echo foo content > foo/plain-file
   $ hg add foo/plain-file
   $ HGEDITOR=cat hg ci --edit -l ../commit-log-test foo
   commit-foo-subdir
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: added foo/plain-file
 
 
   $ echo modified foo content > foo/plain-file
   $ hg ci -m commit-foo-dot .
 
 full log
 
   $ hg log -v
   changeset:   1:95b38e3a5b2e
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       foo/plain-file
   description:
   commit-foo-dot
   
   
   changeset:   0:65d4e9386227
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   files:       foo/plain-file
   description:
   commit-foo-subdir
   
   
 
 subdir log
 
   $ cd foo
   $ hg log .
   changeset:   1:95b38e3a5b2e
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     commit-foo-dot
   
   changeset:   0:65d4e9386227
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     commit-foo-subdir
   
   $ cd ..
   $ cd ..
 
 Issue1049: Hg permits partial commit of merge without warning
 
   $ hg init issue1049
   $ cd issue1049
   $ echo a > a
   $ hg ci -Ama
   adding a
   $ echo a >> a
   $ hg ci -mb
   $ hg up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo b >> a
   $ hg ci -mc
   created new head
   $ HGMERGE=true hg merge
   merging a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
 should fail because we are specifying a file name
 
   $ hg ci -mmerge a
   abort: cannot partially commit a merge (do not specify files or patterns)
   [255]
 
 should fail because we are specifying a pattern
 
   $ hg ci -mmerge -I a
   abort: cannot partially commit a merge (do not specify files or patterns)
   [255]
 
 should succeed
 
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg ci -mmerge --edit
   HGEDITFORM=commit.normal.merge
   $ cd ..
 
 
 test commit message content
 
   $ hg init commitmsg
   $ cd commitmsg
   $ echo changed > changed
   $ echo removed > removed
   $ hg book activebookmark
   $ hg ci -qAm init
 
   $ hg rm removed
   $ echo changed >> changed
   $ echo added > added
   $ hg add added
   $ HGEDITOR=cat hg ci -A
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: bookmark 'activebookmark'
   HG: added added
   HG: changed changed
   HG: removed removed
   abort: empty commit message
   [255]
 
 test saving last-message.txt
 
   $ hg init sub
   $ echo a > sub/a
   $ hg -R sub add sub/a
   $ cat > sub/.hg/hgrc <<EOF
   > [hooks]
   > precommit.test-saving-last-message = false
   > EOF
 
   $ echo 'sub = sub' > .hgsub
   $ hg add .hgsub
 
   $ cat > $TESTTMP/editor.sh <<EOF
   > echo "==== before editing:"
   > cat \$1
   > echo "===="
   > echo "test saving last-message.txt" >> \$1
   > EOF
 
   $ rm -f .hg/last-message.txt
   $ HGEDITOR="sh $TESTTMP/editor.sh" hg commit -S -q
   ==== before editing:
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: bookmark 'activebookmark'
   HG: subrepo sub
   HG: added .hgsub
   HG: added added
   HG: changed .hgsubstate
   HG: changed changed
   HG: removed removed
   ====
   abort: precommit.test-saving-last-message hook exited with status 1 (in subrepository "sub")
   [255]
   $ cat .hg/last-message.txt
   
   
   test saving last-message.txt
 
 test that '[committemplate] changeset' definition and commit log
 specific template keywords work well
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit.normal = 'HG: this is "commit.normal" template
   >     HG: {extramsg}
   >     {if(activebookmark,
   >    "HG: bookmark '{activebookmark}' is activated\n",
   >    "HG: no bookmark is activated\n")}{subrepos %
   >    "HG: subrepo '{subrepo}' is changed\n"}'
   > 
   > changeset.commit = HG: this is "commit" template
   >     HG: {extramsg}
   >     {if(activebookmark,
   >    "HG: bookmark '{activebookmark}' is activated\n",
   >    "HG: no bookmark is activated\n")}{subrepos %
   >    "HG: subrepo '{subrepo}' is changed\n"}
   > 
   > changeset = HG: this is customized commit template
   >     HG: {extramsg}
   >     {if(activebookmark,
   >    "HG: bookmark '{activebookmark}' is activated\n",
   >    "HG: no bookmark is activated\n")}{subrepos %
   >    "HG: subrepo '{subrepo}' is changed\n"}
   > EOF
 
   $ hg init sub2
   $ echo a > sub2/a
   $ hg -R sub2 add sub2/a
   $ echo 'sub2 = sub2' >> .hgsub
 
   $ HGEDITOR=cat hg commit -S -q
   HG: this is "commit.normal" template
   HG: Leave message empty to abort commit.
   HG: bookmark 'activebookmark' is activated
   HG: subrepo 'sub' is changed
   HG: subrepo 'sub2' is changed
   abort: empty commit message
   [255]
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit.normal =
   > # now, "changeset.commit" should be chosen for "hg commit"
   > EOF
 
   $ hg bookmark --inactive activebookmark
   $ hg forget .hgsub
   $ HGEDITOR=cat hg commit -q
   HG: this is "commit" template
   HG: Leave message empty to abort commit.
   HG: no bookmark is activated
   abort: empty commit message
   [255]
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit =
   > # now, "changeset" should be chosen for "hg commit"
   > EOF
 
   $ HGEDITOR=cat hg commit -q
   HG: this is customized commit template
   HG: Leave message empty to abort commit.
   HG: no bookmark is activated
   abort: empty commit message
   [255]
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset = {desc}
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}
   >     HG:
   >     {splitlines(diff()) % 'HG: {line}\n'
   >    }HG:
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}\n
   > EOF
   $ hg status -amr
   M changed
   A added
   R removed
   $ HGEDITOR=cat hg commit -q -e -m "foo bar" changed
   foo bar
   HG: mods=changed
   HG: adds=
   HG: dels=
   HG: files=changed
   HG:
+  HG: diff -r d2313f97106f changed
   HG: --- a/changed	Thu Jan 01 00:00:00 1970 +0000
   HG: +++ b/changed	Thu Jan 01 00:00:00 1970 +0000
   HG: @@ -1,1 +1,2 @@
   HG:  changed
   HG: +changed
   HG:
   HG: mods=changed
   HG: adds=
   HG: dels=
   HG: files=changed
   $ hg status -amr
   A added
   R removed
   $ hg parents --template "M {file_mods}\nA {file_adds}\nR {file_dels}\n"
   M changed
   A 
   R 
   $ hg rollback -q
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset = {desc}
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}
   >     HG:
   >     {splitlines(diff("changed")) % 'HG: {line}\n'
   >    }HG:
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}
   >     HG:
   >     {splitlines(diff("added")) % 'HG: {line}\n'
   >    }HG:
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}
   >     HG:
   >     {splitlines(diff("removed")) % 'HG: {line}\n'
   >    }HG:
   >     HG: mods={file_mods}
   >     HG: adds={file_adds}
   >     HG: dels={file_dels}
   >     HG: files={files}\n
   > EOF
   $ HGEDITOR=cat hg commit -q -e -m "foo bar" added removed
   foo bar
   HG: mods=
   HG: adds=added
   HG: dels=removed
   HG: files=added removed
   HG:
   HG:
   HG: mods=
   HG: adds=added
   HG: dels=removed
   HG: files=added removed
   HG:
+  HG: diff -r d2313f97106f added
   HG: --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   HG: +++ b/added	Thu Jan 01 00:00:00 1970 +0000
   HG: @@ -0,0 +1,1 @@
   HG: +added
   HG:
   HG: mods=
   HG: adds=added
   HG: dels=removed
   HG: files=added removed
   HG:
+  HG: diff -r d2313f97106f removed
   HG: --- a/removed	Thu Jan 01 00:00:00 1970 +0000
   HG: +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
   HG: @@ -1,1 +0,0 @@
   HG: -removed
   HG:
   HG: mods=
   HG: adds=added
   HG: dels=removed
   HG: files=added removed
   $ hg status -amr
   M changed
   $ hg parents --template "M {file_mods}\nA {file_adds}\nR {file_dels}\n"
   M 
   A added
   R removed
   $ hg rollback -q
 
   $ cat >> .hg/hgrc <<EOF
   > # disable customizing for subsequent tests
   > [committemplate]
   > changeset =
   > EOF
 
   $ cd ..
 
 
 commit copy
 
   $ hg init dir2
   $ cd dir2
   $ echo bleh > bar
   $ hg add bar
   $ hg ci -m 'add bar'
 
   $ hg cp bar foo
   $ echo >> bar
   $ hg ci -m 'cp bar foo; change bar'
 
   $ hg debugrename foo
   foo renamed from bar:26d3ca0dfd18e44d796b564e38dd173c9668d3a9
   $ hg debugindex bar
      rev linkrev nodeid       p1           p2
        0       0 26d3ca0dfd18 000000000000 000000000000
        1       1 d267bddd54f7 26d3ca0dfd18 000000000000
 
 Test making empty commits
   $ hg commit --config ui.allowemptycommit=True -m "empty commit"
   $ hg log -r . -v --stat
   changeset:   2:d809f3644287
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   description:
   empty commit
   
   
   
 verify pathauditor blocks evil filepaths
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
   > notrc = u".h\u200cg".encode('utf-8') + b'/hgrc'
   > u = uimod.ui.load()
   > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
   >         b'[hooks]\nupdate = echo owned')
   > c = context.memctx(r, [r.changelog.tip(), node.nullid],
   >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ "$PYTHON" evil-commit.py
 #if windows
   $ hg co --clean tip
   abort: path contains illegal component: .h\xe2\x80\x8cg\\hgrc (esc)
   [255]
 #else
   $ hg co --clean tip
   abort: path contains illegal component: .h\xe2\x80\x8cg/hgrc (esc)
   [255]
 #endif
 
   $ hg rollback -f
   repository tip rolled back to revision 2 (undo commit)
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
   > notrc = b"HG~1/hgrc"
   > u = uimod.ui.load()
   > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
   >         b'[hooks]\nupdate = echo owned')
   > c = context.memctx(r, [r[b'tip'].node(), node.nullid],
   >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ "$PYTHON" evil-commit.py
   $ hg co --clean tip
   abort: path contains illegal component: HG~1/hgrc
   [255]
 
   $ hg rollback -f
   repository tip rolled back to revision 2 (undo commit)
   $ cat > evil-commit.py <<EOF
   > from __future__ import absolute_import
   > from mercurial import context, hg, node, ui as uimod
   > notrc = b"HG8B6C~2/hgrc"
   > u = uimod.ui.load()
   > r = hg.repository(u, b'.')
   > def filectxfn(repo, memctx, path):
   >     return context.memfilectx(repo, memctx, path,
   >         b'[hooks]\nupdate = echo owned')
   > c = context.memctx(r, [r[b'tip'].node(), node.nullid],
   >                    b'evil', [notrc], filectxfn, 0)
   > r.commitctx(c)
   > EOF
   $ "$PYTHON" evil-commit.py
   $ hg co --clean tip
   abort: path contains illegal component: HG8B6C~2/hgrc
   [255]
 
 # test that an unmodified commit template message aborts
 
   $ hg init unmodified_commit_template
   $ cd unmodified_commit_template
   $ echo foo > foo
   $ hg add foo
   $ hg commit -m "foo"
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit = HI THIS IS NOT STRIPPED
   >     HG: this is customized commit template
   >     HG: {extramsg}
   >     {if(activebookmark,
   >    "HG: bookmark '{activebookmark}' is activated\n",
   >    "HG: no bookmark is activated\n")}{subrepos %
   >    "HG: subrepo '{subrepo}' is changed\n"}
   > EOF
   $ cat > $TESTTMP/notouching.sh <<EOF
   > true
   > EOF
   $ echo foo2 > foo2
   $ hg add foo2
   $ HGEDITOR="sh $TESTTMP/notouching.sh" hg commit
   abort: commit message unchanged
   [255]
 
 test that text below the --- >8 --- special string is ignored
 
   $ cat <<'EOF' > $TESTTMP/lowercaseline.sh
   > cat $1 | sed s/LINE/line/ | tee $1.new
   > mv $1.new $1
   > EOF
 
   $ hg init ignore_below_special_string
   $ cd ignore_below_special_string
   $ echo foo > foo
   $ hg add foo
   $ hg commit -m "foo"
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit = first LINE
   >     HG: this is customized commit template
   >     HG: {extramsg}
   >     HG: ------------------------ >8 ------------------------
   >     {diff()}
   > EOF
   $ echo foo2 > foo2
   $ hg add foo2
   $ HGEDITOR="sh $TESTTMP/notouching.sh" hg ci
   abort: commit message unchanged
   [255]
   $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci
   first line
   HG: this is customized commit template
   HG: Leave message empty to abort commit.
   HG: ------------------------ >8 ------------------------
   diff -r e63c23eaa88a foo2
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo2	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +foo2
   $ hg log -T '{desc}\n' -r .
   first line
 
 test that the special string --- >8 --- isn't used when not at the beginning of
 a line
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit = first LINE2
   >     another line HG: ------------------------ >8 ------------------------
   >     HG: this is customized commit template
   >     HG: {extramsg}
   >     HG: ------------------------ >8 ------------------------
   >     {diff()}
   > EOF
   $ echo foo >> foo
   $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci
   first line2
   another line HG: ------------------------ >8 ------------------------
   HG: this is customized commit template
   HG: Leave message empty to abort commit.
   HG: ------------------------ >8 ------------------------
   diff -r 3661b22b0702 foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,2 @@
    foo
   +foo
   $ hg log -T '{desc}\n' -r .
   first line2
   another line HG: ------------------------ >8 ------------------------
 
 also test that this special string isn't accepted when there is some extra text
 at the end
 
   $ cat >> .hg/hgrc <<EOF
   > [committemplate]
   > changeset.commit = first LINE3
   >     HG: ------------------------ >8 ------------------------foobar
   >     second line
   >     HG: this is customized commit template
   >     HG: {extramsg}
   >     HG: ------------------------ >8 ------------------------
   >     {diff()}
   > EOF
   $ echo foo >> foo
   $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci
   first line3
   HG: ------------------------ >8 ------------------------foobar
   second line
   HG: this is customized commit template
   HG: Leave message empty to abort commit.
   HG: ------------------------ >8 ------------------------
   diff -r ce648f5f066f foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,2 +1,3 @@
    foo
    foo
   +foo
   $ hg log -T '{desc}\n' -r .
   first line3
   second line
 
   $ cd ..

tests/test-diff-hashes.t

@@ -1,46 +1,47 b''
   $ hg init a
   $ cd a
 
   $ hg diff inexistent1 inexistent2
   inexistent1: * (glob)
   inexistent2: * (glob)
 
   $ echo bar > foo
   $ hg add foo
   $ hg ci -m 'add foo'
 
   $ echo foobar > foo
   $ hg ci -m 'change foo'
 
   $ hg --quiet diff -r 0 -r 1
+  diff -r a99fb63adac3 -r 9b8568d3af2f foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,1 @@
   -bar
   +foobar
 
   $ hg diff -r 0 -r 1
   diff -r a99fb63adac3 -r 9b8568d3af2f foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,1 @@
   -bar
   +foobar
 
   $ hg --verbose diff -r 0 -r 1
   diff -r a99fb63adac3 -r 9b8568d3af2f foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,1 @@
   -bar
   +foobar
 
   $ hg --debug diff -r 0 -r 1
   diff -r a99fb63adac3f31816a22f665bc3b7a7655b30f4 -r 9b8568d3af2f1749445eef03aede868a6f39f210 foo
   --- a/foo	Thu Jan 01 00:00:00 1970 +0000
   +++ b/foo	Thu Jan 01 00:00:00 1970 +0000
   @@ -1,1 +1,1 @@
   -bar
   +foobar
 
   $ cd ..

tests/test-diffstat.t

@@ -1,291 +1,294 b''
   $ hg init repo
   $ cd repo
   $ i=0; while [ "$i" -lt 213 ]; do echo a >> a; i=`expr $i + 1`; done
   $ hg add a
   $ cp a b
   $ hg add b
 
 Wide diffstat:
 
   $ hg diff --stat
    a |  213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    b |  213 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    2 files changed, 426 insertions(+), 0 deletions(-)
 
 diffstat width:
 
   $ COLUMNS=24 hg diff --config ui.interactive=true --stat
    a |  213 ++++++++++++++
    b |  213 ++++++++++++++
    2 files changed, 426 insertions(+), 0 deletions(-)
 
   $ hg ci -m adda
 
   $ cat >> a <<EOF
   > a
   > a
   > a
   > EOF
 
 Narrow diffstat:
 
   $ hg diff --stat
    a |  3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)
 
   $ hg ci -m appenda
 
   >>> open("c", "wb").write(b"\0") and None
   $ touch d
   $ hg add c d
 
 Binary diffstat:
 
   $ hg diff --stat
    c |  Bin 
    1 files changed, 0 insertions(+), 0 deletions(-)
 
 Binary git diffstat:
 
   $ hg diff --stat --git
    c |  Bin 
    d |    0 
    2 files changed, 0 insertions(+), 0 deletions(-)
 
   $ hg ci -m createb
 
   >>> open("file with spaces", "wb").write(b"\0") and None
   $ hg add "file with spaces"
 
 Filename with spaces diffstat:
 
   $ hg diff --stat
    file with spaces |  Bin 
    1 files changed, 0 insertions(+), 0 deletions(-)
 
 Filename with spaces git diffstat:
 
   $ hg diff --stat --git
    file with spaces |  Bin 
    1 files changed, 0 insertions(+), 0 deletions(-)
 
 Filename without "a/" or "b/" (issue5759):
 
   $ hg diff --config 'diff.noprefix=1' -c1 --stat --git
    a |  3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)
   $ hg diff --config 'diff.noprefix=1' -c2 --stat --git
    c |  Bin 
    d |    0 
    2 files changed, 0 insertions(+), 0 deletions(-)
 
   $ hg log --config 'diff.noprefix=1' -r '1:' -p --stat --git
   changeset:   1:3a95b07bb77f
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     appenda
   
    a |  3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)
   
   diff --git a a
   --- a
   +++ a
   @@ -211,3 +211,6 @@
    a
    a
    a
   +a
   +a
   +a
   
   changeset:   2:c60a6c753773
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     createb
   
    c |  Bin 
    d |    0 
    2 files changed, 0 insertions(+), 0 deletions(-)
   
   diff --git c c
   new file mode 100644
   index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..f76dd238ade08917e6712764a16a22005a50573d
   GIT binary patch
   literal 1
   Ic${MZ000310RR91
   
   diff --git d d
   new file mode 100644
   
 
 diffstat within directories:
 
   $ hg rm -f 'file with spaces'
 
   $ mkdir dir1 dir2
   $ echo new1 > dir1/new
   $ echo new2 > dir2/new
   $ hg add dir1/new dir2/new
   $ hg diff --stat
    dir1/new |  1 +
    dir2/new |  1 +
    2 files changed, 2 insertions(+), 0 deletions(-)
 
   $ hg diff --stat --root dir1
    new |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
 
   $ hg diff --stat --root dir1 dir2
   warning: dir2 not inside relative root dir1
 
   $ hg diff --stat --root dir1 -I dir1/old
 
   $ cd dir1
   $ hg diff --stat .
    dir1/new |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ hg diff --stat . --config ui.relative-paths=yes
    new |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ hg diff --stat --root .
    new |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
 
   $ hg diff --stat --root . --config ui.relative-paths=yes
    new |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
 --root trumps ui.relative-paths
   $ hg diff --stat --root .. --config ui.relative-paths=yes
    new         |  1 +
    ../dir2/new |  1 +
    2 files changed, 2 insertions(+), 0 deletions(-)
   $ hg diff --stat --root ../dir1 ../dir2
   warning: ../dir2 not inside relative root .
 
   $ hg diff --stat --root . -I old
 
   $ cd ..
 
 Files with lines beginning with '--' or '++' should be properly counted in diffstat
 
   $ hg up -Cr tip
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ rm dir1/new
   $ rm dir2/new
   $ rm "file with spaces"
   $ cat > file << EOF
   > line 1
   > line 2
   > line 3
   > EOF
   $ hg commit -Am file
   adding file
 
 Lines added starting with '--' should count as additions
   $ cat > file << EOF
   > line 1
   > -- line 2, with dashes
   > line 3
   > EOF
 
   $ hg diff --root .
   diff -r be1569354b24 file
   --- a/file	Thu Jan 01 00:00:00 1970 +0000
   +++ b/file	* (glob)
   @@ -1,3 +1,3 @@
    line 1
   -line 2
   +-- line 2, with dashes
    line 3
 
   $ hg diff --root . --stat
    file |  2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)
 
 Lines changed starting with '--' should count as deletions
   $ hg commit -m filev2
   $ cat > file << EOF
   > line 1
   > -- line 2, with dashes, changed again
   > line 3
   > EOF
 
   $ hg diff --root .
   diff -r 160f7c034df6 file
   --- a/file	Thu Jan 01 00:00:00 1970 +0000
   +++ b/file	* (glob)
   @@ -1,3 +1,3 @@
    line 1
   --- line 2, with dashes
   +-- line 2, with dashes, changed again
    line 3
 
   $ hg diff --root . --stat
    file |  2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)
 
 Lines changed starting with '--' should count as deletions
 and starting with '++' should count as additions
   $ cat > file << EOF
   > line 1
   > ++ line 2, switched dashes to plusses
   > line 3
   > EOF
 
   $ hg diff --root .
   diff -r 160f7c034df6 file
   --- a/file	Thu Jan 01 00:00:00 1970 +0000
   +++ b/file	* (glob)
   @@ -1,3 +1,3 @@
    line 1
   --- line 2, with dashes
   +++ line 2, switched dashes to plusses
    line 3
 
   $ hg diff --root . --stat
    file |  2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)
 
 When a file is renamed, --git shouldn't loss the info about old file
   $ hg init issue6025
   $ cd issue6025
   $ echo > a
   $ hg ci -Am 'add a'
   adding a
   $ hg mv a b
   $ hg diff --git
   diff --git a/a b/b
   rename from a
   rename to b
   $ hg diff --stat
    a |  1 -
    b |  1 +
    2 files changed, 1 insertions(+), 1 deletions(-)
   $ hg diff --stat --git
    a => b |  0 
    1 files changed, 0 insertions(+), 0 deletions(-)
 -- filename may contain whitespaces
   $ echo > c
   $ hg ci -Am 'add c'
   adding c
   $ hg mv c 'new c'
   $ hg diff --git
   diff --git a/c b/new c
   rename from c
   rename to new c
   $ hg diff --stat
    c     |  1 -
    new c |  1 +
    2 files changed, 1 insertions(+), 1 deletions(-)
   $ hg diff --stat --git
    c => new c |  0 
    1 files changed, 0 insertions(+), 0 deletions(-)
 
 Make sure `diff --stat -q --config diff.git-0` shows stat (issue4037)
 
   $ hg status
   A new c
   R c
   $ hg diff --stat -q
+   c     |  1 -
+   new c |  1 +
+   2 files changed, 1 insertions(+), 1 deletions(-)

tests/test-mq.t

@@ -1,1621 +1,1622 b''
   $ checkundo()
   > {
   >     if [ -f .hg/store/undo ]; then
   >     echo ".hg/store/undo still exists after $1"
   >     fi
   > }
 
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > mq =
   > [mq]
   > plain = true
   > EOF
 
 
 help
 
   $ hg help mq
   mq extension - manage a stack of patches
   
   This extension lets you work with a stack of patches in a Mercurial
   repository. It manages two stacks of patches - all known patches, and applied
   patches (subset of known patches).
   
   Known patches are represented as patch files in the .hg/patches directory.
   Applied patches are both patch files and changesets.
   
   Common tasks (use 'hg help COMMAND' for more details):
   
     create new patch                          qnew
     import existing patch                     qimport
   
     print patch series                        qseries
     print applied patches                     qapplied
   
     add known patch to applied stack          qpush
     remove patch from applied stack           qpop
     refresh contents of top applied patch     qrefresh
   
   By default, mq will automatically use git patches when required to avoid
   losing file mode changes, copy records, binary files or empty files creations
   or deletions. This behavior can be configured with:
   
     [mq]
     git = auto/keep/yes/no
   
   If set to 'keep', mq will obey the [diff] section configuration while
   preserving existing git patches upon qrefresh. If set to 'yes' or 'no', mq
   will override the [diff] section and always generate git or regular patches,
   possibly losing data in the second case.
   
   It may be desirable for mq changesets to be kept in the secret phase (see 'hg
   help phases'), which can be enabled with the following setting:
   
     [mq]
     secret = True
   
   You will by default be managing a patch queue named "patches". You can create
   other, independent patch queues with the 'hg qqueue' command.
   
   If the working directory contains uncommitted files, qpush, qpop and qgoto
   abort immediately. If -f/--force is used, the changes are discarded. Setting:
   
     [mq]
     keepchanges = True
   
   make them behave as if --keep-changes were passed, and non-conflicting local
   changes will be tolerated and preserved. If incompatible options such as
   -f/--force or --exact are passed, this setting is ignored.
   
   This extension used to provide a strip command. This command now lives in the
   strip extension.
   
   list of commands:
   
   Repository creation:
   
    qclone        clone main and patch repository at same time
   
   Change creation:
   
    qnew          create a new patch
    qrefresh      update the current patch
   
   Change manipulation:
   
    qfold         fold the named patches into the current patch
   
   Change organization:
   
    qapplied      print the patches already applied
    qdelete       remove patches from queue
    qfinish       move applied patches into repository history
    qgoto         push or pop patches until named patch is at top of stack
    qguard        set or print guards for a patch
    qheader       print the header of the topmost or specified patch
    qnext         print the name of the next pushable patch
    qpop          pop the current patch off the stack
    qprev         print the name of the preceding applied patch
    qpush         push the next patch onto the stack
    qqueue        manage multiple patch queues
    qrename       rename a patch
    qselect       set or print guarded patches to push
    qseries       print the entire series file
    qtop          print the name of the current patch
    qunapplied    print the patches not yet applied
   
   File content management:
   
    qdiff         diff of the current patch and subsequent modifications
   
   Change import/export:
   
    qimport       import a patch or existing changeset
   
   (use 'hg help -v mq' to show built-in aliases and global options)
 
   $ hg init a
   $ cd a
   $ echo a > a
   $ hg ci -Ama
   adding a
 
   $ hg clone . ../k
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ mkdir b
   $ echo z > b/z
   $ hg ci -Ama
   adding b/z
 
 
 qinit
 
   $ hg qinit
 
   $ cd ..
   $ hg init b
 
 
 -R qinit
 
   $ hg -R b qinit
 
   $ hg init c
 
 
 qinit -c
 
   $ hg --cwd c qinit -c
   $ hg -R c/.hg/patches st
   A .hgignore
   A series
 
 
 qinit; qinit -c
 
   $ hg init d
   $ cd d
   $ hg qinit
   $ hg qinit -c
 
 qinit -c should create both files if they don't exist
 
   $ cat .hg/patches/.hgignore
   ^\.hg
   ^\.mq
   syntax: glob
   status
   guards
   $ cat .hg/patches/series
   $ hg qinit -c
   abort: repository $TESTTMP/d/.hg/patches already exists!
   [255]
   $ cd ..
 
   $ echo '% qinit; <stuff>; qinit -c'
   % qinit; <stuff>; qinit -c
   $ hg init e
   $ cd e
   $ hg qnew A
   $ checkundo qnew
   $ echo foo > foo
   $ hg phase -r qbase
   0: draft
   $ hg add foo
   $ hg qrefresh
   $ hg phase -r qbase
   0: draft
   $ hg qnew B
   $ echo >> foo
   $ hg qrefresh
   $ echo status >> .hg/patches/.hgignore
   $ echo bleh >> .hg/patches/.hgignore
   $ hg qinit -c
   adding .hg/patches/A
   adding .hg/patches/B
   $ hg -R .hg/patches status
   A .hgignore
   A A
   A B
   A series
 
 qinit -c shouldn't touch these files if they already exist
 
   $ cat .hg/patches/.hgignore
   status
   bleh
   $ cat .hg/patches/series
   A
   B
 
 add an untracked file
 
   $ echo >> .hg/patches/flaf
 
 status --mq with color (issue2096)
 
   $ hg status --mq --config extensions.color= --config color.mode=ansi --color=always
   \x1b[0;32;1mA \x1b[0m\x1b[0;32;1m.hgignore\x1b[0m (esc)
   \x1b[0;32;1mA \x1b[0m\x1b[0;32;1mA\x1b[0m (esc)
   \x1b[0;32;1mA \x1b[0m\x1b[0;32;1mB\x1b[0m (esc)
   \x1b[0;32;1mA \x1b[0m\x1b[0;32;1mseries\x1b[0m (esc)
   \x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mflaf\x1b[0m (esc)
 
 try the --mq option on a command provided by an extension
 
   $ hg purge --mq --verbose --config extensions.purge=
   removing file flaf
 
   $ cd ..
 
 #if no-outer-repo
 
 init --mq without repo
 
   $ mkdir f
   $ cd f
   $ hg init --mq
   abort: there is no Mercurial repository here (.hg not found)
   [255]
   $ cd ..
 
 #endif
 
 init --mq with repo path
 
   $ hg init g
   $ hg init --mq g
   $ test -d g/.hg/patches/.hg
 
 init --mq with nonexistent directory
 
   $ hg init --mq nonexistentdir
   abort: repository nonexistentdir not found!
   [255]
 
 
 init --mq with bundle (non "local")
 
   $ hg -R a bundle --all a.bundle >/dev/null
   $ hg init --mq a.bundle
   abort: only a local queue repository may be initialized
   [255]
 
   $ cd a
 
   $ hg qnew -m 'foo bar' test.patch
 
   $ echo '# comment' > .hg/patches/series.tmp
   $ echo >> .hg/patches/series.tmp # empty line
   $ cat .hg/patches/series >> .hg/patches/series.tmp
   $ mv .hg/patches/series.tmp .hg/patches/series
 
 
 qrefresh
 
   $ echo a >> a
   $ hg qrefresh
   $ cat .hg/patches/test.patch
   foo bar
   
   diff -r [a-f0-9]* a (re)
   --- a/a\t(?P<date>.*) (re)
   \+\+\+ b/a\t(?P<date2>.*) (re)
   @@ -1,1 +1,2 @@
    a
   +a
 
 empty qrefresh
 
   $ hg qrefresh -X a
 
 revision:
 
   $ hg diff -r -2 -r -1
 
 patch:
 
   $ cat .hg/patches/test.patch
   foo bar
   
 
 working dir diff:
 
   $ hg diff --nodates -q
+  diff -r dde259bd5934 a
   --- a/a
   +++ b/a
   @@ -1,1 +1,2 @@
    a
   +a
 
 restore things
 
   $ hg qrefresh
   $ checkundo qrefresh
 
 
 qpop
 
   $ hg qpop
   popping test.patch
   patch queue now empty
   $ checkundo qpop
 
 
 qpush with dump of tag cache
 Dump the tag cache to ensure that it has exactly one head after qpush.
 
   $ rm -f .hg/cache/tags2-visible
   $ hg tags > /dev/null
 
 .hg/cache/tags2-visible (pre qpush):
 
   $ cat .hg/cache/tags2-visible
   1 [\da-f]{40} (re)
   $ hg qpush
   applying test.patch
   now at: test.patch
   $ hg phase -r qbase
   2: draft
   $ hg tags > /dev/null
 
 .hg/cache/tags2-visible (post qpush):
 
   $ cat .hg/cache/tags2-visible
   2 [\da-f]{40} (re)
   $ checkundo qpush
   $ cd ..
 
 
 pop/push outside repo
   $ hg -R a qpop
   popping test.patch
   patch queue now empty
   $ hg -R a qpush
   applying test.patch
   now at: test.patch
 
   $ cd a
   $ hg qnew test2.patch
 
 qrefresh in subdir
 
   $ cd b
   $ echo a > a
   $ hg add a
   $ hg qrefresh
 
 pop/push -a in subdir
 
   $ hg qpop -a
   popping test2.patch
   popping test.patch
   patch queue now empty
   $ hg --traceback qpush -a
   applying test.patch
   applying test2.patch
   now at: test2.patch
 
 
 setting columns & formatted tests truncating (issue1912)
 
   $ COLUMNS=4 hg qseries --config ui.formatted=true --color=no
   test.patch
   test2.patch
   $ COLUMNS=20 hg qseries --config ui.formatted=true -vs --color=no
   0 A test.patch: f...
   1 A test2.patch: 
   $ hg qpop
   popping test2.patch
   now at: test.patch
   $ hg qseries -vs
   0 A test.patch: foo bar
   1 U test2.patch: 
   $ hg sum | grep mq
   mq:     1 applied, 1 unapplied
   $ hg qpush
   applying test2.patch
   now at: test2.patch
   $ hg sum | grep mq
   mq:     2 applied
   $ hg qapplied
   test.patch
   test2.patch
   $ hg qtop
   test2.patch
 
 
 prev
 
   $ hg qapp -1
   test.patch
 
 next
 
   $ hg qunapp -1
   all patches applied
   [1]
 
   $ hg qpop
   popping test2.patch
   now at: test.patch
 
 commit should fail
 
   $ hg commit
   abort: cannot commit over an applied mq patch
   [255]
 
 push should fail if draft
 
   $ hg push ../../k
   pushing to ../../k
   abort: source has mq patches applied
   [255]
 
 
 import should fail
 
   $ hg st .
   $ echo foo >> ../a
   $ hg diff > ../../import.diff
   $ hg revert --no-backup ../a
   $ hg import ../../import.diff
   abort: cannot import over an applied patch
   [255]
   $ hg st
 
 import --no-commit should succeed
 
   $ hg import --no-commit ../../import.diff
   applying ../../import.diff
   $ hg st
   M a
   $ hg revert --no-backup ../a
 
 
 qunapplied
 
   $ hg qunapplied
   test2.patch
 
 
 qpush/qpop with index
 
   $ hg qnew test1b.patch
   $ echo 1b > 1b
   $ hg add 1b
   $ hg qrefresh
   $ hg qpush 2
   applying test2.patch
   now at: test2.patch
   $ hg qpop 0
   popping test2.patch
   popping test1b.patch
   now at: test.patch
   $ hg qpush test.patch+1
   applying test1b.patch
   now at: test1b.patch
   $ hg qpush test.patch+2
   applying test2.patch
   now at: test2.patch
   $ hg qpop test2.patch-1
   popping test2.patch
   now at: test1b.patch
   $ hg qpop test2.patch-2
   popping test1b.patch
   now at: test.patch
   $ hg qpush test1b.patch+1
   applying test1b.patch
   applying test2.patch
   now at: test2.patch
 
 
 qpush --move
 
   $ hg qpop -a
   popping test2.patch
   popping test1b.patch
   popping test.patch
   patch queue now empty
   $ hg qguard test1b.patch -- -negguard
   $ hg qguard test2.patch -- +posguard
   $ hg qpush --move test2.patch # can't move guarded patch
   cannot push 'test2.patch' - guarded by '+posguard'
   [1]
   $ hg qselect posguard
   number of unguarded, unapplied patches has changed from 2 to 3
   $ hg qpush --move test2.patch # move to front
   applying test2.patch
   now at: test2.patch
   $ hg qpush --move test1b.patch # negative guard unselected
   applying test1b.patch
   now at: test1b.patch
   $ hg qpush --move test.patch # noop move
   applying test.patch
   now at: test.patch
   $ hg qseries -v
   0 A test2.patch
   1 A test1b.patch
   2 A test.patch
   $ hg qpop -a
   popping test.patch
   popping test1b.patch
   popping test2.patch
   patch queue now empty
 
 cleaning up
 
   $ hg qselect --none
   guards deactivated
   number of unguarded, unapplied patches has changed from 3 to 2
   $ hg qguard --none test1b.patch
   $ hg qguard --none test2.patch
   $ hg qpush --move test.patch
   applying test.patch
   now at: test.patch
   $ hg qpush --move test1b.patch
   applying test1b.patch
   now at: test1b.patch
   $ hg qpush --move bogus # nonexistent patch
   abort: patch bogus not in series
   [255]
   $ hg qpush --move # no patch
   abort: please specify the patch to move
   [255]
   $ hg qpush --move test.patch # already applied
   abort: cannot push to a previous patch: test.patch
   [255]
   $ sed '2i\
   > # make qtip index different in series and fullseries
   > ' `hg root`/.hg/patches/series > $TESTTMP/sedtmp
   $ cp $TESTTMP/sedtmp `hg root`/.hg/patches/series
   $ cat `hg root`/.hg/patches/series
   # comment
   # make qtip index different in series and fullseries
   
   test.patch
   test1b.patch
   test2.patch
   $ hg qpush --move test2.patch
   applying test2.patch
   now at: test2.patch
 
 
 series after move
 
   $ cat `hg root`/.hg/patches/series
   # comment
   # make qtip index different in series and fullseries
   
   test.patch
   test1b.patch
   test2.patch
 
 
 pop, qapplied, qunapplied
 
   $ hg qseries -v
   0 A test.patch
   1 A test1b.patch
   2 A test2.patch
 
 qapplied -1 test.patch
 
   $ hg qapplied -1 test.patch
   only one patch applied
   [1]
 
 qapplied -1 test1b.patch
 
   $ hg qapplied -1 test1b.patch
   test.patch
 
 qapplied -1 test2.patch
 
   $ hg qapplied -1 test2.patch
   test1b.patch
 
 qapplied -1
 
   $ hg qapplied -1
   test1b.patch
 
 qapplied
 
   $ hg qapplied
   test.patch
   test1b.patch
   test2.patch
 
 qapplied test1b.patch
 
   $ hg qapplied test1b.patch
   test.patch
   test1b.patch
 
 qunapplied -1
 
   $ hg qunapplied -1
   all patches applied
   [1]
 
 qunapplied
 
   $ hg qunapplied
 
 popping
 
   $ hg qpop
   popping test2.patch
   now at: test1b.patch
 
 qunapplied -1
 
   $ hg qunapplied -1
   test2.patch
 
 qunapplied
 
   $ hg qunapplied
   test2.patch
 
 qunapplied test2.patch
 
   $ hg qunapplied test2.patch
 
 qunapplied -1 test2.patch
 
   $ hg qunapplied -1 test2.patch
   all patches applied
   [1]
 
 popping -a
 
   $ hg qpop -a
   popping test1b.patch
   popping test.patch
   patch queue now empty
 
 qapplied
 
   $ hg qapplied
 
 qapplied -1
 
   $ hg qapplied -1
   no patches applied
   [1]
   $ hg qpush
   applying test.patch
   now at: test.patch
 
 
 push should succeed
 
   $ hg qpop -a
   popping test.patch
   patch queue now empty
   $ hg push ../../k
   pushing to ../../k
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
 
 
 we want to start with some patches applied
 
   $ hg qpush -a
   applying test.patch
   applying test1b.patch
   applying test2.patch
   now at: test2.patch
 
 % pops all patches and succeeds
 
   $ hg qpop -a
   popping test2.patch
   popping test1b.patch
   popping test.patch
   patch queue now empty
 
 % does nothing and succeeds
 
   $ hg qpop -a
   no patches applied
 
 % fails - nothing else to pop
 
   $ hg qpop
   no patches applied
   [1]
 
 % pushes a patch and succeeds
 
   $ hg qpush
   applying test.patch
   now at: test.patch
 
 % pops a patch and succeeds
 
   $ hg qpop
   popping test.patch
   patch queue now empty
 
 % pushes up to test1b.patch and succeeds
 
   $ hg qpush test1b.patch
   applying test.patch
   applying test1b.patch
   now at: test1b.patch
 
 % does nothing and succeeds
 
   $ hg qpush test1b.patch
   qpush: test1b.patch is already at the top
 
 % does nothing and succeeds
 
   $ hg qpop test1b.patch
   qpop: test1b.patch is already at the top
 
 % fails - can't push to this patch
 
   $ hg qpush test.patch
   abort: cannot push to a previous patch: test.patch
   [255]
 
 % fails - can't pop to this patch
 
   $ hg qpop test2.patch
   abort: patch test2.patch is not applied
   [255]
 
 % pops up to test.patch and succeeds
 
   $ hg qpop test.patch
   popping test1b.patch
   now at: test.patch
 
 % pushes all patches and succeeds
 
   $ hg qpush -a
   applying test1b.patch
   applying test2.patch
   now at: test2.patch
 
 % does nothing and succeeds
 
   $ hg qpush -a
   all patches are currently applied
 
 % fails - nothing else to push
 
   $ hg qpush
   patch series already fully applied
   [1]
 
 % does nothing and succeeds
 
   $ hg qpush test2.patch
   qpush: test2.patch is already at the top
 
 strip
 
   $ cd ../../b
   $ echo x>x
   $ hg ci -Ama
   adding x
   $ hg strip tip
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/b/.hg/strip-backup/*-backup.hg (glob)
   $ hg unbundle .hg/strip-backup/*
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 770eb8fce608 (1 drafts)
   (run 'hg update' to get a working copy)
 
 
 strip with local changes, should complain
 
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo y>y
   $ hg add y
   $ hg strip tip
   abort: local changes found
   [255]
 
 --force strip with local changes
 
   $ hg strip -f tip
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/b/.hg/strip-backup/770eb8fce608-0ddcae0f-backup.hg
   $ cd ..
 
 
 cd b; hg qrefresh
 
   $ hg init refresh
   $ cd refresh
   $ echo a > a
   $ hg ci -Ama
   adding a
   $ hg qnew -mfoo foo
   $ echo a >> a
   $ hg qrefresh
   $ mkdir b
   $ cd b
   $ echo f > f
   $ hg add f
   $ hg qrefresh
   $ cat ../.hg/patches/foo
   foo
   
   diff -r cb9a9f314b8b a
   --- a/a\t(?P<date>.*) (re)
   \+\+\+ b/a\t(?P<date>.*) (re)
   @@ -1,1 +1,2 @@
    a
   +a
   diff -r cb9a9f314b8b b/f
   --- /dev/null\t(?P<date>.*) (re)
   \+\+\+ b/b/f\t(?P<date>.*) (re)
   @@ -0,0 +1,1 @@
   +f
 
 hg qrefresh .
 
   $ hg qrefresh .
   $ cat ../.hg/patches/foo
   foo
   
   diff -r cb9a9f314b8b b/f
   --- /dev/null\t(?P<date>.*) (re)
   \+\+\+ b/b/f\t(?P<date>.*) (re)
   @@ -0,0 +1,1 @@
   +f
   $ hg status
   M a
 
 
 qpush failure
 
   $ cd ..
   $ hg qrefresh
   $ hg qnew -mbar bar
   $ echo foo > foo
   $ echo bar > bar
   $ hg add foo bar
   $ hg qrefresh
   $ hg qpop -a
   popping bar
   popping foo
   patch queue now empty
   $ echo bar > foo
   $ hg qpush -a
   applying foo
   applying bar
   file foo already exists
   1 out of 1 hunks FAILED -- saving rejects to file foo.rej
   patch failed, unable to continue (try -v)
   patch failed, rejects left in working directory
   errors during apply, please fix and qrefresh bar
   [2]
   $ hg st
   ? foo
   ? foo.rej
 
 
 mq tags
 
   $ hg log --template '{rev} {tags}\n' -r qparent:qtip
   0 qparent
   1 foo qbase
   2 bar qtip tip
 
 mq revset
 
   $ hg log -r 'mq()' --template '{rev}\n'
   1
   2
   $ hg help revisions.mq
       "mq()"
         Changesets managed by MQ.
   
 
 bad node in status
 
   $ hg qpop
   popping bar
   now at: foo
   $ hg strip -qn tip
   $ hg tip
   changeset:   0:cb9a9f314b8b
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     a
   
   $ hg branches
   default                        0:cb9a9f314b8b
   $ hg qpop
   no patches applied
   [1]
 
   $ cd ..
 
 
 git patches
 
   $ cat >>$HGRCPATH <<EOF
   > [diff]
   > git = True
   > EOF
   $ hg init git
   $ cd git
   $ hg qinit
 
   $ hg qnew -m'new file' new
   $ echo foo > new
 #if execbit
   $ chmod +x new
 #endif
   $ hg add new
   $ hg qrefresh
 
   $ cat .hg/patches/new
   new file
   
   diff --git a/new b/new
   new file mode 100755 (execbit !)
   new file mode 100644 (no-execbit !)
   --- /dev/null
   +++ b/new
   @@ -0,0 +1,1 @@
   +foo
 
   $ hg qnew -m'copy file' copy
   $ hg cp new copy
   $ hg qrefresh
   $ cat .hg/patches/copy
   copy file
   
   diff --git a/new b/copy
   copy from new
   copy to copy
 
   $ hg qpop
   popping copy
   now at: new
   $ hg qpush
   applying copy
   now at: copy
   $ hg qdiff
   diff --git a/new b/copy
   copy from new
   copy to copy
   $ cat >>$HGRCPATH <<EOF
   > [diff]
   > git = False
   > EOF
   $ hg qdiff --git
   diff --git a/new b/copy
   copy from new
   copy to copy
   $ cd ..
 
 empty lines in status
 
   $ hg init emptystatus
   $ cd emptystatus
   $ hg qinit
   $ printf '\n\n' > .hg/patches/status
   $ hg qser
   $ cd ..
 
 bad line in status (without ":")
 
   $ hg init badstatus
   $ cd badstatus
   $ hg qinit
   $ printf 'babar has no colon in this line\n' > .hg/patches/status
   $ hg qser
   malformated mq status line: ['babar has no colon in this line']
   $ cd ..
 
 
 test file addition in slow path
 
   $ hg init slow
   $ cd slow
   $ hg qinit
   $ echo foo > foo
   $ hg add foo
   $ hg ci -m 'add foo'
   $ hg qnew bar
   $ echo bar > bar
   $ hg add bar
   $ hg mv foo baz
   $ hg qrefresh --git
   $ hg up -C 0
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo >> foo
   $ hg ci -m 'change foo'
   created new head
   $ hg up -C 1
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg qrefresh --git
   $ cat .hg/patches/bar
   diff --git a/bar b/bar
   new file mode 100644
   --- /dev/null
   +++ b/bar
   @@ -0,0 +1,1 @@
   +bar
   diff --git a/foo b/baz
   rename from foo
   rename to baz
   $ hg log -v --template '{rev} {file_copies}\n' -r .
   2 baz (foo)
   $ hg qrefresh --git
   $ cat .hg/patches/bar
   diff --git a/bar b/bar
   new file mode 100644
   --- /dev/null
   +++ b/bar
   @@ -0,0 +1,1 @@
   +bar
   diff --git a/foo b/baz
   rename from foo
   rename to baz
   $ hg log -v --template '{rev} {file_copies}\n' -r .
   2 baz (foo)
   $ hg qrefresh
   $ grep 'diff --git' .hg/patches/bar
   diff --git a/bar b/bar
   diff --git a/foo b/baz
 
 
 test file move chains in the slow path
 
   $ hg up -C 1
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo >> foo
   $ hg ci -m 'change foo again'
   $ hg up -C 2
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg mv bar quux
   $ hg mv baz bleh
   $ hg qrefresh --git
   $ cat .hg/patches/bar
   diff --git a/foo b/bleh
   rename from foo
   rename to bleh
   diff --git a/quux b/quux
   new file mode 100644
   --- /dev/null
   +++ b/quux
   @@ -0,0 +1,1 @@
   +bar
   $ hg log -v --template '{rev} {file_copies}\n' -r .
   3 bleh (foo)
   $ hg mv quux fred
   $ hg mv bleh barney
   $ hg qrefresh --git
   $ cat .hg/patches/bar
   diff --git a/foo b/barney
   rename from foo
   rename to barney
   diff --git a/fred b/fred
   new file mode 100644
   --- /dev/null
   +++ b/fred
   @@ -0,0 +1,1 @@
   +bar
   $ hg log -v --template '{rev} {file_copies}\n' -r .
   3 barney (foo)
 
 
 refresh omitting an added file
 
   $ hg qnew baz
   $ echo newfile > newfile
   $ hg add newfile
   $ hg qrefresh
   $ hg st -A newfile
   C newfile
   $ hg qrefresh -X newfile
   $ hg st -A newfile
   A newfile
   $ hg revert newfile
   $ rm newfile
   $ hg qpop
   popping baz
   now at: bar
 
 test qdel/qrm
 
   $ hg qdel baz
   $ echo p >> .hg/patches/series
   $ hg qrm p
   $ hg qser
   bar
 
 create a git patch
 
   $ echo a > alexander
   $ hg add alexander
   $ hg qnew -f --git addalexander
   $ grep diff .hg/patches/addalexander
   diff --git a/alexander b/alexander
 
 
 create a git binary patch
 
   $ cat > writebin.py <<EOF
   > import sys
   > path = sys.argv[1]
   > open(path, 'wb').write(b'BIN\x00ARY')
   > EOF
   $ "$PYTHON" writebin.py bucephalus
 
   $ "$PYTHON" "$TESTDIR/md5sum.py" bucephalus
   8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
   $ hg add bucephalus
   $ hg qnew -f --git addbucephalus
   $ grep diff .hg/patches/addbucephalus
   diff --git a/bucephalus b/bucephalus
 
 
 check binary patches can be popped and pushed
 
   $ hg qpop
   popping addbucephalus
   now at: addalexander
   $ test -f bucephalus && echo % bucephalus should not be there
   [1]
   $ hg qpush
   applying addbucephalus
   now at: addbucephalus
   $ test -f bucephalus
   $ "$PYTHON" "$TESTDIR/md5sum.py" bucephalus
   8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
 
 
 
 strip again
 
   $ cd ..
   $ hg init strip
   $ cd strip
   $ touch foo
   $ hg add foo
   $ hg ci -m 'add foo'
   $ echo >> foo
   $ hg ci -m 'change foo 1'
   $ hg up -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo 1 >> foo
   $ hg ci -m 'change foo 2'
   created new head
   $ HGMERGE=true hg merge
   merging foo
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m merge
   $ hg log
   changeset:   3:99615015637b
   tag:         tip
   parent:      2:20cbbe65cff7
   parent:      1:d2871fc282d4
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     merge
   
   changeset:   2:20cbbe65cff7
   parent:      0:53245c60e682
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     change foo 2
   
   changeset:   1:d2871fc282d4
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     change foo 1
   
   changeset:   0:53245c60e682
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     add foo
   
   $ hg strip 1
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/strip/.hg/strip-backup/*-backup.hg (glob)
   $ checkundo strip
   $ hg log
   changeset:   1:20cbbe65cff7
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     change foo 2
   
   changeset:   0:53245c60e682
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     add foo
   
   $ cd ..
 
 
 qclone
 
   $ qlog()
   > {
   >     echo 'main repo:'
   >     hg log --template '    rev {rev}: {desc}\n'
   >     echo 'patch repo:'
   >     hg -R .hg/patches log --template '    rev {rev}: {desc}\n'
   > }
   $ hg init qclonesource
   $ cd qclonesource
   $ echo foo > foo
   $ hg add foo
   $ hg ci -m 'add foo'
   $ hg qinit
   $ hg qnew patch1
   $ echo bar >> foo
   $ hg qrefresh -m 'change foo'
   $ cd ..
 
 
 repo with unversioned patch dir
 
   $ hg qclone qclonesource failure
   abort: versioned patch repository not found (see init --mq)
   [255]
 
   $ cd qclonesource
   $ hg qinit -c
   adding .hg/patches/patch1
   $ hg qci -m checkpoint
   $ qlog
   main repo:
       rev 1: change foo
       rev 0: add foo
   patch repo:
       rev 0: checkpoint
   $ cd ..
 
 
 repo with patches applied
 
   $ hg qclone qclonesource qclonedest
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd qclonedest
   $ qlog
   main repo:
       rev 0: add foo
   patch repo:
       rev 0: checkpoint
   $ cd ..
 
 
 repo with patches unapplied
 
   $ cd qclonesource
   $ hg qpop -a
   popping patch1
   patch queue now empty
   $ qlog
   main repo:
       rev 0: add foo
   patch repo:
       rev 0: checkpoint
   $ cd ..
   $ hg qclone qclonesource qclonedest2
   updating to branch default
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd qclonedest2
   $ qlog
   main repo:
       rev 0: add foo
   patch repo:
       rev 0: checkpoint
   $ cd ..
 
 
 Issue1033: test applying on an empty file
 
   $ hg init empty
   $ cd empty
   $ touch a
   $ hg ci -Am addempty
   adding a
   $ echo a > a
   $ hg qnew -f -e changea
   $ hg qpop
   popping changea
   patch queue now empty
   $ hg qpush
   applying changea
   now at: changea
   $ cd ..
 
 test qpush with --force, issue1087
 
   $ hg init forcepush
   $ cd forcepush
   $ echo hello > hello.txt
   $ echo bye > bye.txt
   $ hg ci -Ama
   adding bye.txt
   adding hello.txt
   $ hg qnew -d '0 0' empty
   $ hg qpop
   popping empty
   patch queue now empty
   $ echo world >> hello.txt
 
 
 qpush should fail, local changes
 
   $ hg qpush
   abort: local changes found
   [255]
 
 
 apply force, should not discard changes with empty patch
 
   $ hg qpush -f
   applying empty
   patch empty is empty
   now at: empty
   $ hg diff --config diff.nodates=True
   diff -r d58265112590 hello.txt
   --- a/hello.txt
   +++ b/hello.txt
   @@ -1,1 +1,2 @@
    hello
   +world
   $ hg qdiff --config diff.nodates=True
   diff -r 9ecee4f634e3 hello.txt
   --- a/hello.txt
   +++ b/hello.txt
   @@ -1,1 +1,2 @@
    hello
   +world
   $ hg log -l1 -p
   changeset:   1:d58265112590
   tag:         empty
   tag:         qbase
   tag:         qtip
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     imported patch empty
   
   
   $ hg qref -d '0 0'
   $ hg qpop
   popping empty
   patch queue now empty
   $ echo universe >> hello.txt
   $ echo universe >> bye.txt
 
 
 qpush should fail, local changes
 
   $ hg qpush
   abort: local changes found
   [255]
 
 
 apply force, should discard changes in hello, but not bye
 
   $ hg qpush -f --verbose --config 'ui.origbackuppath=.hg/origbackups'
   applying empty
   creating directory: $TESTTMP/forcepush/.hg/origbackups
   saving current version of hello.txt as .hg/origbackups/hello.txt
   patching file hello.txt
   committing files:
   hello.txt
   committing manifest
   committing changelog
   now at: empty
   $ hg st
   M bye.txt
   $ hg diff --config diff.nodates=True
   diff -r ba252371dbc1 bye.txt
   --- a/bye.txt
   +++ b/bye.txt
   @@ -1,1 +1,2 @@
    bye
   +universe
   $ hg qdiff --config diff.nodates=True
   diff -r 9ecee4f634e3 bye.txt
   --- a/bye.txt
   +++ b/bye.txt
   @@ -1,1 +1,2 @@
    bye
   +universe
   diff -r 9ecee4f634e3 hello.txt
   --- a/hello.txt
   +++ b/hello.txt
   @@ -1,1 +1,3 @@
    hello
   +world
   +universe
 
 test that the previous call to qpush with -f (--force) and --config actually put
 the orig files out of the working copy
   $ ls .hg/origbackups
   hello.txt
 
 test popping revisions not in working dir ancestry
 
   $ hg qseries -v
   0 A empty
   $ hg up qparent
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg qpop
   popping empty
   patch queue now empty
 
   $ cd ..
   $ hg init deletion-order
   $ cd deletion-order
 
   $ touch a
   $ hg ci -Aqm0
 
   $ hg qnew rename-dir
   $ hg rm a
   $ hg qrefresh
 
   $ mkdir a b
   $ touch a/a b/b
   $ hg add -q a b
   $ hg qrefresh
 
 
 test popping must remove files added in subdirectories first
 
   $ hg qpop
   popping rename-dir
   patch queue now empty
   $ cd ..
 
 
 test case preservation through patch pushing especially on case
 insensitive filesystem
 
   $ hg init casepreserve
   $ cd casepreserve
 
   $ hg qnew add-file1
   $ echo a > TeXtFiLe.TxT
   $ hg add TeXtFiLe.TxT
   $ hg qrefresh
 
   $ hg qnew add-file2
   $ echo b > AnOtHeRFiLe.TxT
   $ hg add AnOtHeRFiLe.TxT
   $ hg qrefresh
 
   $ hg qnew modify-file
   $ echo c >> AnOtHeRFiLe.TxT
   $ hg qrefresh
 
   $ hg qapplied
   add-file1
   add-file2
   modify-file
   $ hg qpop -a
   popping modify-file
   popping add-file2
   popping add-file1
   patch queue now empty
 
 this qpush causes problems below, if case preservation on case
 insensitive filesystem is not enough:
 (1) unexpected "adding ..." messages are shown
 (2) patching fails in modification of (1) files
 
   $ hg qpush -a
   applying add-file1
   applying add-file2
   applying modify-file
   now at: modify-file
 
 Proper phase default with mq:
 
 1. mq.secret=false
 
   $ rm .hg/store/phaseroots
   $ hg phase 'qparent::'
   -1: public
   0: draft
   1: draft
   2: draft
   $ echo '[mq]' >> $HGRCPATH
   $ echo 'secret=true' >> $HGRCPATH
   $ rm -f .hg/store/phaseroots
   $ hg phase 'qparent::'
   -1: public
   0: secret
   1: secret
   2: secret
 
 Test that qfinish change phase when mq.secret=true
 
   $ hg qfinish qbase
   patch add-file1 finalized without changeset message
   $ hg phase 'all()'
   0: draft
   1: secret
   2: secret
 
 Test that qfinish respect phases.new-commit setting
 
   $ echo '[phases]' >> $HGRCPATH
   $ echo 'new-commit=secret' >> $HGRCPATH
   $ hg qfinish qbase
   patch add-file2 finalized without changeset message
   $ hg phase 'all()'
   0: draft
   1: secret
   2: secret
 
 (restore env for next test)
 
   $ sed -e 's/new-commit=secret//' $HGRCPATH > $TESTTMP/sedtmp
   $ cp $TESTTMP/sedtmp $HGRCPATH
   $ hg qimport -r 1 --name  add-file2
 
 Test that qfinish preserve phase when mq.secret=false
 
   $ sed -e 's/secret=true/secret=false/' $HGRCPATH > $TESTTMP/sedtmp
   $ cp $TESTTMP/sedtmp $HGRCPATH
   $ hg qfinish qbase
   patch add-file2 finalized without changeset message
   $ hg phase 'all()'
   0: draft
   1: secret
   2: secret
 
 Test that secret mq patch does not break hgweb
 
   $ cat > hgweb.cgi <<HGWEB
   > from mercurial import demandimport; demandimport.enable()
   > from mercurial.hgweb import hgweb
   > from mercurial.hgweb import wsgicgi
   > import cgitb
   > cgitb.enable()
   > app = hgweb(b'.', b'test')
   > wsgicgi.launch(app)
   > HGWEB
   $ . "$TESTDIR/cgienv"
 #if msys
   $ PATH_INFO=//tags; export PATH_INFO
 #else
   $ PATH_INFO=/tags; export PATH_INFO
 #endif
   $ QUERY_STRING='style=raw'
   $ "$PYTHON" hgweb.cgi | grep '^tip'
   tip	[0-9a-f]{40} (re)
 
   $ cd ..
 
 Test interaction with revset (issue4426)
 
   $ hg init issue4426
   $ cd issue4426
 
   $ echo a > a
   $ hg ci -Am a
   adding a
   $ echo a >> a
   $ hg ci -m a
   $ echo a >> a
   $ hg ci -m a
   $ hg qimport -r 0::
 
 reimport things
 
   $ hg qimport -r 1::
   abort: revision 2 is already managed
   [255]
 
 
   $ cd ..

tests/test-transplant.t

@@ -1,1006 +1,1007 b''
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > transplant=
   > EOF
 
   $ hg init t
   $ cd t
   $ hg transplant
   abort: no source URL, branch revision, or revision list provided
   [255]
   $ hg transplant --continue --all
   abort: --continue is incompatible with --branch, --all and --merge
   [255]
   $ hg transplant --all tip
   abort: --all requires a branch revision
   [255]
   $ hg transplant --all --branch default tip
   abort: --all is incompatible with a revision list
   [255]
   $ echo r1 > r1
   $ hg ci -Amr1 -d'0 0'
   adding r1
   $ hg co -q null
   $ hg transplant tip
   abort: no revision checked out
   [255]
   $ hg up -q
   $ echo r2 > r2
   $ hg ci -Amr2 -d'1 0'
   adding r2
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
   $ echo b1 > b1
   $ hg ci -Amb1 -d '0 0'
   adding b1
   created new head
   $ hg merge 1
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg transplant 1
   abort: outstanding uncommitted merge
   [255]
   $ hg up -qC tip
   $ echo b0 > b1
   $ hg transplant 1
   abort: uncommitted changes
   [255]
   $ hg up -qC tip
   $ echo b2 > b2
   $ hg ci -Amb2 -d '1 0'
   adding b2
   $ echo b3 > b3
   $ hg ci -Amb3 -d '2 0'
   adding b3
 
   $ hg log --template '{rev} {parents} {desc}\n'
   4  b3
   3  b2
   2 0:17ab29e464c6  b1
   1  r2
   0  r1
 
   $ hg clone . ../rebase
   updating to branch default
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg init ../emptydest
   $ cd ../emptydest
   $ hg transplant --source=../t > /dev/null
   $ cd ../rebase
 
   $ hg up -C 1
   1 files updated, 0 files merged, 3 files removed, 0 files unresolved
 
 rebase b onto r1
 (this also tests that editor is not invoked if '--edit' is not specified)
 
   $ HGEDITOR=cat hg transplant -a -b tip
   applying 37a1297eb21b
   37a1297eb21b transplanted to e234d668f844
   applying 722f4667af76
   722f4667af76 transplanted to 539f377d78df
   applying a53251cdf717
   a53251cdf717 transplanted to ffd6818a3975
   $ hg log --template '{rev} {parents} {desc}\n'
   7  b3
   6  b2
   5 1:d11e3596cc1a  b1
   4  b3
   3  b2
   2 0:17ab29e464c6  b1
   1  r2
   0  r1
 
 test format of transplant_source
 
   $ hg log -r7 --debug | grep transplant_source
   extra:       transplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
   $ hg log -r7 -T '{extras}\n'
   branch=defaulttransplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
   $ hg log -r7 -T '{join(extras, " ")}\n'
   branch=default transplant_source=\xa52Q\xcd\xf7\x17g\x9d\x19\x07\xb2\x89\xf9\x91SK\xe0\\\x99z
 
 test transplanted revset
 
   $ hg log -r 'transplanted()' --template '{rev} {parents} {desc}\n'
   5 1:d11e3596cc1a  b1
   6  b2
   7  b3
   $ hg log -r 'transplanted(head())' --template '{rev} {parents} {desc}\n'
   7  b3
   $ hg help revisions.transplanted
       "transplanted([set])"
         Transplanted changesets in set, or all transplanted changesets.
   
 
 test transplanted keyword
 
   $ hg log --template '{rev} {transplanted}\n'
   7 a53251cdf717679d1907b289f991534be05c997a
   6 722f4667af767100cb15b6a79324bf8abbfe1ef4
   5 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21
   4 
   3 
   2 
   1 
   0 
 
 test destination() revset predicate with a transplant of a transplant; new
 clone so subsequent rollback isn't affected
 (this also tests that editor is invoked if '--edit' is specified)
 
   $ hg clone -q . ../destination
   $ cd ../destination
   $ hg up -Cq 0
   $ hg branch -q b4
   $ hg ci -qm "b4"
   $ hg status --rev "7^1" --rev 7
   A b3
   $ cat > $TESTTMP/checkeditform.sh <<EOF
   > env | grep HGEDITFORM
   > true
   > EOF
   $ cat > $TESTTMP/checkeditform-n-cat.sh <<EOF
   > env | grep HGEDITFORM
   > cat \$*
   > EOF
   $ HGEDITOR="sh $TESTTMP/checkeditform-n-cat.sh" hg transplant --edit 7
   applying ffd6818a3975
   HGEDITFORM=transplant.normal
   b3
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'b4'
   HG: added b3
   ffd6818a3975 transplanted to 502236fa76bb
 
 
   $ hg log -r 'destination()'
   changeset:   5:e234d668f844
   parent:      1:d11e3596cc1a
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     b1
   
   changeset:   6:539f377d78df
   user:        test
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     b2
   
   changeset:   7:ffd6818a3975
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
   changeset:   9:502236fa76bb
   branch:      b4
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
   $ hg log -r 'destination(a53251cdf717)'
   changeset:   7:ffd6818a3975
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
   changeset:   9:502236fa76bb
   branch:      b4
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
 
 test subset parameter in reverse order
   $ hg log -r 'reverse(all()) and destination(a53251cdf717)'
   changeset:   9:502236fa76bb
   branch:      b4
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
   changeset:   7:ffd6818a3975
   user:        test
   date:        Thu Jan 01 00:00:02 1970 +0000
   summary:     b3
   
 
 back to the original dir
   $ cd ../rebase
 
 rollback the transplant
   $ hg rollback
   repository tip rolled back to revision 4 (undo transplant)
   working directory now based on revision 1
   $ hg tip -q
   4:a53251cdf717
   $ hg parents -q
   1:d11e3596cc1a
   $ hg status
   ? b1
   ? b2
   ? b3
 
   $ hg clone ../t ../prune
   updating to branch default
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../prune
 
   $ hg up -C 1
   1 files updated, 0 files merged, 3 files removed, 0 files unresolved
 
 rebase b onto r1, skipping b2
 
   $ hg transplant -a -b tip -p 3
   applying 37a1297eb21b
   37a1297eb21b transplanted to e234d668f844
   applying a53251cdf717
   a53251cdf717 transplanted to 7275fda4d04f
   $ hg log --template '{rev} {parents} {desc}\n'
   6  b3
   5 1:d11e3596cc1a  b1
   4  b3
   3  b2
   2 0:17ab29e464c6  b1
   1  r2
   0  r1
 
 test same-parent transplant with --log
 
   $ hg clone -r 1 ../t ../sameparent
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   new changesets 17ab29e464c6:d11e3596cc1a
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../sameparent
   $ hg transplant --log -s ../prune 5
   searching for changes
   applying e234d668f844
   e234d668f844 transplanted to e07aea8ecf9c
   $ hg log --template '{rev} {parents} {desc}\n'
   2  b1
   (transplanted from e234d668f844e1b1a765f01db83a32c0c7bfa170)
   1  r2
   0  r1
 remote transplant, and also test that transplant doesn't break with
 format-breaking diffopts
 
   $ hg clone -r 1 ../t ../remote
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   new changesets 17ab29e464c6:d11e3596cc1a
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../remote
   $ hg --config diff.noprefix=True transplant --log -s ../t 2 4
   searching for changes
   applying 37a1297eb21b
   37a1297eb21b transplanted to c19cf0ccb069
   applying a53251cdf717
   a53251cdf717 transplanted to f7fe5bf98525
   $ hg log --template '{rev} {parents} {desc}\n'
   3  b3
   (transplanted from a53251cdf717679d1907b289f991534be05c997a)
   2  b1
   (transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
   1  r2
   0  r1
 
 skip previous transplants
 
   $ hg transplant -s ../t -a -b 4
   searching for changes
   applying 722f4667af76
   722f4667af76 transplanted to 47156cd86c0b
   $ hg log --template '{rev} {parents} {desc}\n'
   4  b2
   3  b3
   (transplanted from a53251cdf717679d1907b289f991534be05c997a)
   2  b1
   (transplanted from 37a1297eb21b3ef5c5d2ffac22121a0988ed9f21)
   1  r2
   0  r1
 
 skip local changes transplanted to the source
 
   $ echo b4 > b4
   $ hg ci -Amb4 -d '3 0'
   adding b4
   $ hg clone ../t ../pullback
   updating to branch default
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../pullback
   $ hg transplant -s ../remote -a -b tip
   searching for changes
   applying 4333daefcb15
   4333daefcb15 transplanted to 5f42c04e07cc
 
 
 remote transplant with pull
 
   $ hg serve -R ../t -p $HGPORT -d --pid-file=../t.pid
   $ cat ../t.pid >> $DAEMON_PIDS
 
   $ hg clone -r 0 ../t ../rp
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 17ab29e464c6
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ../rp
   $ hg transplant -s http://localhost:$HGPORT/ 37a1297eb21b a53251cdf717
   searching for changes
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   applying a53251cdf717
   a53251cdf717 transplanted to 8d9279348abb
   $ hg log --template '{rev} {parents} {desc}\n'
   2  b3
   1  b1
   0  r1
 
 remote transplant without pull
 (It was using "2" and "4" (as the previous transplant used to) which referenced
 revision different from one run to another)
 
   $ hg pull -q http://localhost:$HGPORT/
   $ hg transplant -s http://localhost:$HGPORT/ 8d9279348abb 722f4667af76
   skipping already applied revision 2:8d9279348abb
   applying 722f4667af76
   722f4667af76 transplanted to 76e321915884
 
 transplant --continue
 
   $ hg init ../tc
   $ cd ../tc
   $ cat <<EOF > foo
   > foo
   > bar
   > baz
   > EOF
   $ echo toremove > toremove
   $ echo baz > baz
   $ hg ci -Amfoo
   adding baz
   adding foo
   adding toremove
   $ cat <<EOF > foo
   > foo2
   > bar2
   > baz2
   > EOF
   $ rm toremove
   $ echo added > added
   $ hg ci -Amfoo2
   adding added
   removing toremove
   $ echo bar > bar
   $ cat > baz <<EOF
   > before baz
   > baz
   > after baz
   > EOF
   $ hg ci -Ambar
   adding bar
   $ echo bar2 >> bar
   $ hg ci -mbar2
   $ hg up 0
   3 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo foobar > foo
   $ hg ci -mfoobar
   created new head
   $ hg transplant 1:3
   applying 46ae92138f3c
   patching file foo
   Hunk #1 FAILED at 0
   1 out of 1 hunks FAILED -- saving rejects to file foo.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
 
 transplant -c shouldn't use an old changeset
 
   $ hg up -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to "e8643552fde5: foobar"
   1 other heads for branch "default"
   $ rm added
   $ hg transplant --continue
   abort: no transplant to continue
   [255]
   $ hg transplant 1
   applying 46ae92138f3c
   patching file foo
   Hunk #1 FAILED at 0
   1 out of 1 hunks FAILED -- saving rejects to file foo.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ cp .hg/transplant/journal .hg/transplant/journal.orig
   $ cat .hg/transplant/journal
   # User test
   # Date 0 0
   # Node ID 46ae92138f3ce0249f6789650403286ead052b6d
   # Parent e8643552fde58f57515e19c4b373a57c96e62af3
   foo2
   $ grep -v 'Date' .hg/transplant/journal.orig > .hg/transplant/journal
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
   abort: filter corrupted changeset (no user or date)
   [255]
   $ cp .hg/transplant/journal.orig .hg/transplant/journal
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
   HGEDITFORM=transplant.normal
   46ae92138f3c transplanted as 9159dada197d
   $ hg transplant 1:3
   skipping already applied revision 1:46ae92138f3c
   applying 9d6d6b5a8275
   9d6d6b5a8275 transplanted to 2d17a10c922f
   applying 1dab759070cf
   1dab759070cf transplanted to e06a69927eb0
   $ hg locate
   added
   bar
   baz
   foo
 
 test multiple revisions and --continue
 
   $ hg up -qC 0
   $ echo bazbaz > baz
   $ hg ci -Am anotherbaz baz
   created new head
   $ hg transplant 1:3
   applying 46ae92138f3c
   46ae92138f3c transplanted to 1024233ea0ba
   applying 9d6d6b5a8275
   patching file baz
   Hunk #1 FAILED at 0
   1 out of 1 hunks FAILED -- saving rejects to file baz.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ hg transplant 1:3
   abort: transplant in progress
   (use 'hg transplant --continue' or 'hg update' to abort)
   [255]
   $ echo fixed > baz
   $ hg transplant --continue
   9d6d6b5a8275 transplanted as d80c49962290
   applying 1dab759070cf
   1dab759070cf transplanted to aa0ffe6bd5ae
 
   $ cd ..
 
 Issue1111: Test transplant --merge
 
   $ hg init t1111
   $ cd t1111
   $ echo a > a
   $ hg ci -Am adda
   adding a
   $ echo b >> a
   $ hg ci -m appendb
   $ echo c >> a
   $ hg ci -m appendc
   $ hg up -C 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo d >> a
   $ hg ci -m appendd
   created new head
 
 transplant
 
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant -m 1 -e
   applying 42dc4432fd35
   HGEDITFORM=transplant.merge
   1:42dc4432fd35 merged at a9f4acbac129
   $ hg update -q -C 2
   $ cat > a <<EOF
   > x
   > y
   > z
   > EOF
   $ hg commit -m replace
   $ hg update -q -C 4
   $ hg transplant -m 5
   applying 600a3cdcb41d
   patching file a
   Hunk #1 FAILED at 0
   1 out of 1 hunks FAILED -- saving rejects to file a.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg transplant --continue -e
   HGEDITFORM=transplant.merge
   600a3cdcb41d transplanted as a3f88be652e0
 
   $ cd ..
 
 test transplant into empty repository
 
   $ hg init empty
   $ cd empty
   $ hg transplant -s ../t -b tip -a
   adding changesets
   adding manifests
   adding file changes
   added 4 changesets with 4 changes to 4 files
   new changesets 17ab29e464c6:a53251cdf717
 
 test "--merge" causing pull from source repository on local host
 
   $ hg --config extensions.mq= -q strip 2
   $ hg transplant -s ../t --merge tip
   searching for changes
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   applying a53251cdf717
   4:a53251cdf717 merged at 4831f4dc831a
 
 test interactive transplant
 
   $ hg --config extensions.strip= -q strip 0
   $ hg -R ../t log -G --template "{rev}:{node|short}"
   @  4:a53251cdf717
   |
   o  3:722f4667af76
   |
   o  2:37a1297eb21b
   |
   | o  1:d11e3596cc1a
   |/
   o  0:17ab29e464c6
   
   $ hg transplant -q --config ui.interactive=true -s ../t <<EOF
   > ?
   > x
   > q
   > EOF
   0:17ab29e464c6
   apply changeset? [ynmpcq?]: ?
   y: yes, transplant this changeset
   n: no, skip this changeset
   m: merge at this changeset
   p: show patch
   c: commit selected changesets
   q: quit and cancel transplant
   ?: ? (show this help)
   apply changeset? [ynmpcq?]: x
   unrecognized response
   apply changeset? [ynmpcq?]: q
   $ hg transplant -q --config ui.interactive=true -s ../t <<EOF
   > p
   > y
   > n
   > n
   > m
   > c
   > EOF
   0:17ab29e464c6
   apply changeset? [ynmpcq?]: p
+  diff -r 000000000000 -r 17ab29e464c6 r1
   --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
   +++ b/r1	Thu Jan 01 00:00:00 1970 +0000
   @@ -0,0 +1,1 @@
   +r1
   apply changeset? [ynmpcq?]: y
   1:d11e3596cc1a
   apply changeset? [ynmpcq?]: n
   2:37a1297eb21b
   apply changeset? [ynmpcq?]: n
   3:722f4667af76
   apply changeset? [ynmpcq?]: m
   4:a53251cdf717
   apply changeset? [ynmpcq?]: c
   $ hg log -G --template "{node|short}"
   @    88be5dde5260
   |\
   | o  722f4667af76
   | |
   | o  37a1297eb21b
   |/
   o  17ab29e464c6
   
   $ hg transplant -q --config ui.interactive=true -s ../t <<EOF
   > x
   > ?
   > y
   > q
   > EOF
   1:d11e3596cc1a
   apply changeset? [ynmpcq?]: x
   unrecognized response
   apply changeset? [ynmpcq?]: ?
   y: yes, transplant this changeset
   n: no, skip this changeset
   m: merge at this changeset
   p: show patch
   c: commit selected changesets
   q: quit and cancel transplant
   ?: ? (show this help)
   apply changeset? [ynmpcq?]: y
   4:a53251cdf717
   apply changeset? [ynmpcq?]: q
   $ hg heads --template "{node|short}\n"
   88be5dde5260
 
   $ cd ..
 
 
 #if unix-permissions system-sh
 
 test filter
 
   $ hg init filter
   $ cd filter
   $ cat <<'EOF' >test-filter
   > #!/bin/sh
   > sed 's/r1/r2/' $1 > $1.new
   > mv $1.new $1
   > EOF
   $ chmod +x test-filter
   $ hg transplant -s ../t -b tip -a --filter ./test-filter
   filtering * (glob)
   applying 17ab29e464c6
   17ab29e464c6 transplanted to e9ffc54ea104
   filtering * (glob)
   applying 37a1297eb21b
   37a1297eb21b transplanted to 348b36d0b6a5
   filtering * (glob)
   applying 722f4667af76
   722f4667af76 transplanted to 0aa6979afb95
   filtering * (glob)
   applying a53251cdf717
   a53251cdf717 transplanted to 14f8512272b5
   $ hg log --template '{rev} {parents} {desc}\n'
   3  b3
   2  b2
   1  b1
   0  r2
   $ cd ..
 
 
 test filter with failed patch
 
   $ cd filter
   $ hg up 0
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ echo foo > b1
   $ hg ci -Am foo
   adding b1
   adding test-filter
   created new head
   $ hg transplant 1 --filter ./test-filter
   filtering * (glob)
   applying 348b36d0b6a5
   file b1 already exists
   1 out of 1 hunks FAILED -- saving rejects to file b1.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ cd ..
 
 test environment passed to filter
 
   $ hg init filter-environment
   $ cd filter-environment
   $ cat <<'EOF' >test-filter-environment
   > #!/bin/sh
   > echo "Transplant by $HGUSER" >> $1
   > echo "Transplant from rev $HGREVISION" >> $1
   > EOF
   $ chmod +x test-filter-environment
   $ hg transplant -s ../t --filter ./test-filter-environment 0
   filtering * (glob)
   applying 17ab29e464c6
   17ab29e464c6 transplanted to 5190e68026a0
 
   $ hg log --template '{rev} {parents} {desc}\n'
   0  r1
   Transplant by test
   Transplant from rev 17ab29e464c6ca53e329470efe2a9918ac617a6f
   $ cd ..
 
 test transplant with filter handles invalid changelog
 
   $ hg init filter-invalid-log
   $ cd filter-invalid-log
   $ cat <<'EOF' >test-filter-invalid-log
   > #!/bin/sh
   > echo "" > $1
   > EOF
   $ chmod +x test-filter-invalid-log
   $ hg transplant -s ../t --filter ./test-filter-invalid-log 0
   filtering * (glob)
   abort: filter corrupted changeset (no user or date)
   [255]
   $ cd ..
 
 #endif
 
 
 test with a win32ext like setup (differing EOLs)
 
   $ hg init twin1
   $ cd twin1
   $ echo a > a
   $ echo b > b
   $ echo b >> b
   $ hg ci -Am t
   adding a
   adding b
   $ echo a > b
   $ echo b >> b
   $ hg ci -m changeb
   $ cd ..
 
   $ hg init twin2
   $ cd twin2
   $ echo '[patch]' >> .hg/hgrc
   $ echo 'eol = crlf' >> .hg/hgrc
   $ "$PYTHON" -c "open('b', 'wb').write(b'b\r\nb\r\n')"
   $ hg ci -Am addb
   adding b
   $ hg transplant -s ../twin1 tip
   searching for changes
   warning: repository is unrelated
   applying 2e849d776c17
   2e849d776c17 transplanted to 8e65bebc063e
   $ cat b
   a\r (esc)
   b\r (esc)
   $ cd ..
 
 test transplant with merge changeset is skipped
 
   $ hg init merge1a
   $ cd merge1a
   $ echo a > a
   $ hg ci -Am a
   adding a
   $ hg branch b
   marked working directory as branch b
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci -m branchb
   $ echo b > b
   $ hg ci -Am b
   adding b
   $ hg update default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg merge b
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m mergeb
   $ cd ..
 
   $ hg init merge1b
   $ cd merge1b
   $ hg transplant -s ../merge1a tip
   $ cd ..
 
 test transplant with merge changeset accepts --parent
 
   $ hg init merge2a
   $ cd merge2a
   $ echo a > a
   $ hg ci -Am a
   adding a
   $ hg branch b
   marked working directory as branch b
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci -m branchb
   $ echo b > b
   $ hg ci -Am b
   adding b
   $ hg update default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg merge b
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -m mergeb
   $ cd ..
 
   $ hg init merge2b
   $ cd merge2b
   $ hg transplant -s ../merge2a --parent tip tip
   abort: be9f9b39483f is not a parent of be9f9b39483f
   [255]
   $ hg transplant -s ../merge2a --parent 0 tip
   applying be9f9b39483f
   be9f9b39483f transplanted to 9959e51f94d1
   $ cd ..
 
 test transplanting a patch turning into a no-op
 
   $ hg init binarysource
   $ cd binarysource
   $ echo a > a
   $ hg ci -Am adda a
   >>> open('b', 'wb').write(b'\0b1') and None
   $ hg ci -Am addb b
   >>> open('b', 'wb').write(b'\0b2') and None
   $ hg ci -m changeb b
   $ cd ..
 
   $ hg clone -r0 binarysource binarydest
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   new changesets 07f494440405
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd binarydest
   $ cp ../binarysource/b b
   $ hg ci -Am addb2 b
   $ hg transplant -s ../binarysource 2
   searching for changes
   applying 7a7d57e15850
   skipping emptied changeset 7a7d57e15850
 
 Test empty result in --continue
 
   $ hg transplant -s ../binarysource 1
   searching for changes
   applying 645035761929
   file b already exists
   1 out of 1 hunks FAILED -- saving rejects to file b.rej
   patch failed to apply
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ hg status
   ? b.rej
   $ hg transplant --continue
   645035761929 skipped due to empty diff
 
   $ cd ..
 
 Explicitly kill daemons to let the test exit on Windows
 
   $ killdaemons.py
 
 Test that patch-ed files are treated as "modified", when transplant is
 aborted by failure of patching, even if none of mode, size and
 timestamp of them isn't changed on the filesystem (see also issue4583)
 
   $ cd t
 
   $ cat > $TESTTMP/abort.py <<EOF
   > # emulate that patch.patch() is aborted at patching on "abort" file
   > from mercurial import error, extensions, patch as patchmod
   > def patch(orig, ui, repo, patchname,
   >           strip=1, prefix=b'', files=None,
   >           eolmode=b'strict', similarity=0):
   >     if files is None:
   >         files = set()
   >     r = orig(ui, repo, patchname,
   >         strip=strip, prefix=prefix, files=files,
   >         eolmode=eolmode, similarity=similarity)
   >     if b'abort' in files:
   >         raise error.PatchError('intentional error while patching')
   >     return r
   > def extsetup(ui):
   >     extensions.wrapfunction(patchmod, 'patch', patch)
   > EOF
 
   $ echo X1 > r1
   $ hg diff --nodates r1
   diff -r a53251cdf717 r1
   --- a/r1
   +++ b/r1
   @@ -1,1 +1,1 @@
   -r1
   +X1
   $ hg commit -m "X1 as r1"
 
   $ echo 'marking to abort patching' > abort
   $ hg add abort
   $ echo Y1 > r1
   $ hg diff --nodates r1
   diff -r 22c515968f13 r1
   --- a/r1
   +++ b/r1
   @@ -1,1 +1,1 @@
   -X1
   +Y1
   $ hg commit -m "Y1 as r1"
 
   $ hg update -q -C d11e3596cc1a
   $ cat r1
   r1
 
   $ cat >> .hg/hgrc <<EOF
   > [fakedirstatewritetime]
   > # emulate invoking dirstate.write() via repo.status() or markcommitted()
   > # at 2000-01-01 00:00
   > fakenow = 200001010000
   > 
   > # emulate invoking patch.internalpatch() at 2000-01-01 00:00
   > [fakepatchtime]
   > fakenow = 200001010000
   > 
   > [extensions]
   > fakedirstatewritetime = $TESTDIR/fakedirstatewritetime.py
   > fakepatchtime = $TESTDIR/fakepatchtime.py
   > abort = $TESTTMP/abort.py
   > EOF
   $ hg transplant "22c515968f13::"
   applying 22c515968f13
   22c515968f13 transplanted to * (glob)
   applying e38700ba9dd3
   intentional error while patching
   abort: fix up the working directory and run hg transplant --continue
   [255]
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > fakedirstatewritetime = !
   > fakepatchtime = !
   > [extensions]
   > abort = !
   > EOF
 
   $ cat r1
   Y1
   $ hg debugstate | grep ' r1$'
   n 644          3 unset               r1
   $ hg status -A r1
   M r1
 
 Test that rollback by unexpected failure after transplanting the first
 revision restores dirstate correctly.
 
   $ hg rollback -q
   $ rm -f abort
   $ hg update -q -C d11e3596cc1a
   $ hg parents -T "{node|short}\n"
   d11e3596cc1a
   $ hg status -A
   C r1
   C r2
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > # emulate failure at transplanting the 2nd revision
   > pretxncommit.abort = test ! -f abort
   > EOF
   $ hg transplant "22c515968f13::"
   applying 22c515968f13
   22c515968f13 transplanted to * (glob)
   applying e38700ba9dd3
   transaction abort!
   rollback completed
   abort: pretxncommit.abort hook exited with status 1
   [255]
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > pretxncommit.abort = !
   > EOF
 
   $ hg parents -T "{node|short}\n"
   d11e3596cc1a
   $ hg status -A
   M r1
   ? abort
   C r2
 
   $ cd ..