debugmergestate: make templated

Our IntelliJ team wants to be able to read the merge state in order to
help the user resolve merge conflicts. They had so far been reading
file contents from p1() and p2() and their merge base. That is not
ideal for several reasons (merge base is not necessarily the "graft
base", renames are not handled, commands like `hg update -m` is not
handled). It will get especially bad as of my D7827. This patch makes
the output s a templated. I haven't bothered to make it complete
(e.g. merge driver states are not handled), but it's probably good
enough as a start.

I've done a web search for "debugmergestate" and I can't find any
indication that any tools currently rely on its output. If it turns
out that we get bug reports for it once this is released, I won't
object to backing this patch out on the stable branch (and then
perhaps replace it by a separate command, or put it behind a new
flag).

Differential Revision: https://phab.mercurial-scm.org/D8113

mercurial/debugcommands.py

@@ -1,4367 +1,4330 b''
 # debugcommands.py - command processing for debug* commands
 #
 # Copyright 2005-2016 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import codecs
 import collections
 import difflib
 import errno
 import operator
 import os
 import platform
 import random
 import re
 import socket
 import ssl
 import stat
 import string
 import subprocess
 import sys
 import time
 
 from .i18n import _
 from .node import (
     bin,
     hex,
-    nullhex,
     nullid,
     nullrev,
     short,
 )
 from .pycompat import (
     getattr,
     open,
 )
 from . import (
     bundle2,
     changegroup,
     cmdutil,
     color,
     context,
     copies,
     dagparser,
     encoding,
     error,
     exchange,
     extensions,
     filemerge,
     filesetlang,
     formatter,
     hg,
     httppeer,
     localrepo,
     lock as lockmod,
     logcmdutil,
     merge as mergemod,
     obsolete,
     obsutil,
     pathutil,
     phases,
     policy,
     pvec,
     pycompat,
     registrar,
     repair,
     revlog,
     revset,
     revsetlang,
     scmutil,
     setdiscovery,
     simplemerge,
     sshpeer,
     sslutil,
     streamclone,
     tags as tagsmod,
     templater,
     treediscovery,
     upgrade,
     url as urlmod,
     util,
     vfs as vfsmod,
     wireprotoframing,
     wireprotoserver,
     wireprotov2peer,
 )
 from .utils import (
     cborutil,
     compression,
     dateutil,
     procutil,
     stringutil,
 )
 
 from .revlogutils import (
     deltas as deltautil,
     nodemap,
 )
 
 release = lockmod.release
 
 command = registrar.command()
 
 
 @command(b'debugancestor', [], _(b'[INDEX] REV1 REV2'), optionalrepo=True)
 def debugancestor(ui, repo, *args):
     """find the ancestor revision of two revisions in a given index"""
     if len(args) == 3:
         index, rev1, rev2 = args
         r = revlog.revlog(vfsmod.vfs(encoding.getcwd(), audit=False), index)
         lookup = r.lookup
     elif len(args) == 2:
         if not repo:
             raise error.Abort(
                 _(b'there is no Mercurial repository here (.hg not found)')
             )
         rev1, rev2 = args
         r = repo.changelog
         lookup = repo.lookup
     else:
         raise error.Abort(_(b'either two or three arguments required'))
     a = r.ancestor(lookup(rev1), lookup(rev2))
     ui.write(b'%d:%s\n' % (r.rev(a), hex(a)))
 
 
 @command(b'debugapplystreamclonebundle', [], b'FILE')
 def debugapplystreamclonebundle(ui, repo, fname):
     """apply a stream clone bundle file"""
     f = hg.openpath(ui, fname)
     gen = exchange.readbundle(ui, f, fname)
     gen.apply(repo)
 
 
 @command(
     b'debugbuilddag',
     [
         (
             b'm',
             b'mergeable-file',
             None,
             _(b'add single file mergeable changes'),
         ),
         (
             b'o',
             b'overwritten-file',
             None,
             _(b'add single file all revs overwrite'),
         ),
         (b'n', b'new-file', None, _(b'add new file at each rev')),
     ],
     _(b'[OPTION]... [TEXT]'),
 )
 def debugbuilddag(
     ui,
     repo,
     text=None,
     mergeable_file=False,
     overwritten_file=False,
     new_file=False,
 ):
     """builds a repo with a given DAG from scratch in the current empty repo
 
     The description of the DAG is read from stdin if not given on the
     command line.
 
     Elements:
 
      - "+n" is a linear run of n nodes based on the current default parent
      - "." is a single node based on the current default parent
      - "$" resets the default parent to null (implied at the start);
            otherwise the default parent is always the last node created
      - "<p" sets the default parent to the backref p
      - "*p" is a fork at parent p, which is a backref
      - "*p1/p2" is a merge of parents p1 and p2, which are backrefs
      - "/p2" is a merge of the preceding node and p2
      - ":tag" defines a local tag for the preceding node
      - "@branch" sets the named branch for subsequent nodes
      - "#...\\n" is a comment up to the end of the line
 
     Whitespace between the above elements is ignored.
 
     A backref is either
 
      - a number n, which references the node curr-n, where curr is the current
        node, or
      - the name of a local tag you placed earlier using ":tag", or
      - empty to denote the default parent.
 
     All string valued-elements are either strictly alphanumeric, or must
     be enclosed in double quotes ("..."), with "\\" as escape character.
     """
 
     if text is None:
         ui.status(_(b"reading DAG from stdin\n"))
         text = ui.fin.read()
 
     cl = repo.changelog
     if len(cl) > 0:
         raise error.Abort(_(b'repository is not empty'))
 
     # determine number of revs in DAG
     total = 0
     for type, data in dagparser.parsedag(text):
         if type == b'n':
             total += 1
 
     if mergeable_file:
         linesperrev = 2
         # make a file with k lines per rev
         initialmergedlines = [
             b'%d' % i for i in pycompat.xrange(0, total * linesperrev)
         ]
         initialmergedlines.append(b"")
 
     tags = []
     progress = ui.makeprogress(
         _(b'building'), unit=_(b'revisions'), total=total
     )
     with progress, repo.wlock(), repo.lock(), repo.transaction(b"builddag"):
         at = -1
         atbranch = b'default'
         nodeids = []
         id = 0
         progress.update(id)
         for type, data in dagparser.parsedag(text):
             if type == b'n':
                 ui.note((b'node %s\n' % pycompat.bytestr(data)))
                 id, ps = data
 
                 files = []
                 filecontent = {}
 
                 p2 = None
                 if mergeable_file:
                     fn = b"mf"
                     p1 = repo[ps[0]]
                     if len(ps) > 1:
                         p2 = repo[ps[1]]
                         pa = p1.ancestor(p2)
                         base, local, other = [
                             x[fn].data() for x in (pa, p1, p2)
                         ]
                         m3 = simplemerge.Merge3Text(base, local, other)
                         ml = [l.strip() for l in m3.merge_lines()]
                         ml.append(b"")
                     elif at > 0:
                         ml = p1[fn].data().split(b"\n")
                     else:
                         ml = initialmergedlines
                     ml[id * linesperrev] += b" r%i" % id
                     mergedtext = b"\n".join(ml)
                     files.append(fn)
                     filecontent[fn] = mergedtext
 
                 if overwritten_file:
                     fn = b"of"
                     files.append(fn)
                     filecontent[fn] = b"r%i\n" % id
 
                 if new_file:
                     fn = b"nf%i" % id
                     files.append(fn)
                     filecontent[fn] = b"r%i\n" % id
                     if len(ps) > 1:
                         if not p2:
                             p2 = repo[ps[1]]
                         for fn in p2:
                             if fn.startswith(b"nf"):
                                 files.append(fn)
                                 filecontent[fn] = p2[fn].data()
 
                 def fctxfn(repo, cx, path):
                     if path in filecontent:
                         return context.memfilectx(
                             repo, cx, path, filecontent[path]
                         )
                     return None
 
                 if len(ps) == 0 or ps[0] < 0:
                     pars = [None, None]
                 elif len(ps) == 1:
                     pars = [nodeids[ps[0]], None]
                 else:
                     pars = [nodeids[p] for p in ps]
                 cx = context.memctx(
                     repo,
                     pars,
                     b"r%i" % id,
                     files,
                     fctxfn,
                     date=(id, 0),
                     user=b"debugbuilddag",
                     extra={b'branch': atbranch},
                 )
                 nodeid = repo.commitctx(cx)
                 nodeids.append(nodeid)
                 at = id
             elif type == b'l':
                 id, name = data
                 ui.note((b'tag %s\n' % name))
                 tags.append(b"%s %s\n" % (hex(repo.changelog.node(id)), name))
             elif type == b'a':
                 ui.note((b'branch %s\n' % data))
                 atbranch = data
             progress.update(id)
 
         if tags:
             repo.vfs.write(b"localtags", b"".join(tags))
 
 
 def _debugchangegroup(ui, gen, all=None, indent=0, **opts):
     indent_string = b' ' * indent
     if all:
         ui.writenoi18n(
             b"%sformat: id, p1, p2, cset, delta base, len(delta)\n"
             % indent_string
         )
 
         def showchunks(named):
             ui.write(b"\n%s%s\n" % (indent_string, named))
             for deltadata in gen.deltaiter():
                 node, p1, p2, cs, deltabase, delta, flags = deltadata
                 ui.write(
                     b"%s%s %s %s %s %s %d\n"
                     % (
                         indent_string,
                         hex(node),
                         hex(p1),
                         hex(p2),
                         hex(cs),
                         hex(deltabase),
                         len(delta),
                     )
                 )
 
         gen.changelogheader()
         showchunks(b"changelog")
         gen.manifestheader()
         showchunks(b"manifest")
         for chunkdata in iter(gen.filelogheader, {}):
             fname = chunkdata[b'filename']
             showchunks(fname)
     else:
         if isinstance(gen, bundle2.unbundle20):
             raise error.Abort(_(b'use debugbundle2 for this file'))
         gen.changelogheader()
         for deltadata in gen.deltaiter():
             node, p1, p2, cs, deltabase, delta, flags = deltadata
             ui.write(b"%s%s\n" % (indent_string, hex(node)))
 
 
 def _debugobsmarkers(ui, part, indent=0, **opts):
     """display version and markers contained in 'data'"""
     opts = pycompat.byteskwargs(opts)
     data = part.read()
     indent_string = b' ' * indent
     try:
         version, markers = obsolete._readmarkers(data)
     except error.UnknownVersion as exc:
         msg = b"%sunsupported version: %s (%d bytes)\n"
         msg %= indent_string, exc.version, len(data)
         ui.write(msg)
     else:
         msg = b"%sversion: %d (%d bytes)\n"
         msg %= indent_string, version, len(data)
         ui.write(msg)
         fm = ui.formatter(b'debugobsolete', opts)
         for rawmarker in sorted(markers):
             m = obsutil.marker(None, rawmarker)
             fm.startitem()
             fm.plain(indent_string)
             cmdutil.showmarker(fm, m)
         fm.end()
 
 
 def _debugphaseheads(ui, data, indent=0):
     """display version and markers contained in 'data'"""
     indent_string = b' ' * indent
     headsbyphase = phases.binarydecode(data)
     for phase in phases.allphases:
         for head in headsbyphase[phase]:
             ui.write(indent_string)
             ui.write(b'%s %s\n' % (hex(head), phases.phasenames[phase]))
 
 
 def _quasirepr(thing):
     if isinstance(thing, (dict, util.sortdict, collections.OrderedDict)):
         return b'{%s}' % (
             b', '.join(b'%s: %s' % (k, thing[k]) for k in sorted(thing))
         )
     return pycompat.bytestr(repr(thing))
 
 
 def _debugbundle2(ui, gen, all=None, **opts):
     """lists the contents of a bundle2"""
     if not isinstance(gen, bundle2.unbundle20):
         raise error.Abort(_(b'not a bundle2 file'))
     ui.write((b'Stream params: %s\n' % _quasirepr(gen.params)))
     parttypes = opts.get('part_type', [])
     for part in gen.iterparts():
         if parttypes and part.type not in parttypes:
             continue
         msg = b'%s -- %s (mandatory: %r)\n'
         ui.write((msg % (part.type, _quasirepr(part.params), part.mandatory)))
         if part.type == b'changegroup':
             version = part.params.get(b'version', b'01')
             cg = changegroup.getunbundler(version, part, b'UN')
             if not ui.quiet:
                 _debugchangegroup(ui, cg, all=all, indent=4, **opts)
         if part.type == b'obsmarkers':
             if not ui.quiet:
                 _debugobsmarkers(ui, part, indent=4, **opts)
         if part.type == b'phase-heads':
             if not ui.quiet:
                 _debugphaseheads(ui, part, indent=4)
 
 
 @command(
     b'debugbundle',
     [
         (b'a', b'all', None, _(b'show all details')),
         (b'', b'part-type', [], _(b'show only the named part type')),
         (b'', b'spec', None, _(b'print the bundlespec of the bundle')),
     ],
     _(b'FILE'),
     norepo=True,
 )
 def debugbundle(ui, bundlepath, all=None, spec=None, **opts):
     """lists the contents of a bundle"""
     with hg.openpath(ui, bundlepath) as f:
         if spec:
             spec = exchange.getbundlespec(ui, f)
             ui.write(b'%s\n' % spec)
             return
 
         gen = exchange.readbundle(ui, f, bundlepath)
         if isinstance(gen, bundle2.unbundle20):
             return _debugbundle2(ui, gen, all=all, **opts)
         _debugchangegroup(ui, gen, all=all, **opts)
 
 
 @command(b'debugcapabilities', [], _(b'PATH'), norepo=True)
 def debugcapabilities(ui, path, **opts):
     """lists the capabilities of a remote peer"""
     opts = pycompat.byteskwargs(opts)
     peer = hg.peer(ui, opts, path)
     caps = peer.capabilities()
     ui.writenoi18n(b'Main capabilities:\n')
     for c in sorted(caps):
         ui.write(b'  %s\n' % c)
     b2caps = bundle2.bundle2caps(peer)
     if b2caps:
         ui.writenoi18n(b'Bundle2 capabilities:\n')
         for key, values in sorted(pycompat.iteritems(b2caps)):
             ui.write(b'  %s\n' % key)
             for v in values:
                 ui.write(b'    %s\n' % v)
 
 
 @command(b'debugcheckstate', [], b'')
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
     parent1, parent2 = repo.dirstate.parents()
     m1 = repo[parent1].manifest()
     m2 = repo[parent2].manifest()
     errors = 0
     for f in repo.dirstate:
         state = repo.dirstate[f]
         if state in b"nr" and f not in m1:
             ui.warn(_(b"%s in state %s, but not in manifest1\n") % (f, state))
             errors += 1
         if state in b"a" and f in m1:
             ui.warn(_(b"%s in state %s, but also in manifest1\n") % (f, state))
             errors += 1
         if state in b"m" and f not in m1 and f not in m2:
             ui.warn(
                 _(b"%s in state %s, but not in either manifest\n") % (f, state)
             )
             errors += 1
     for f in m1:
         state = repo.dirstate[f]
         if state not in b"nrm":
             ui.warn(_(b"%s in manifest1, but listed as state %s") % (f, state))
             errors += 1
     if errors:
         errstr = _(b".hg/dirstate inconsistent with current parent's manifest")
         raise error.Abort(errstr)
 
 
 @command(
     b'debugcolor',
     [(b'', b'style', None, _(b'show all configured styles'))],
     b'hg debugcolor',
 )
 def debugcolor(ui, repo, **opts):
     """show available color, effects or style"""
     ui.writenoi18n(b'color mode: %s\n' % stringutil.pprint(ui._colormode))
     if opts.get('style'):
         return _debugdisplaystyle(ui)
     else:
         return _debugdisplaycolor(ui)
 
 
 def _debugdisplaycolor(ui):
     ui = ui.copy()
     ui._styles.clear()
     for effect in color._activeeffects(ui).keys():
         ui._styles[effect] = effect
     if ui._terminfoparams:
         for k, v in ui.configitems(b'color'):
             if k.startswith(b'color.'):
                 ui._styles[k] = k[6:]
             elif k.startswith(b'terminfo.'):
                 ui._styles[k] = k[9:]
     ui.write(_(b'available colors:\n'))
     # sort label with a '_' after the other to group '_background' entry.
     items = sorted(ui._styles.items(), key=lambda i: (b'_' in i[0], i[0], i[1]))
     for colorname, label in items:
         ui.write(b'%s\n' % colorname, label=label)
 
 
 def _debugdisplaystyle(ui):
     ui.write(_(b'available style:\n'))
     if not ui._styles:
         return
     width = max(len(s) for s in ui._styles)
     for label, effects in sorted(ui._styles.items()):
         ui.write(b'%s' % label, label=label)
         if effects:
             # 50
             ui.write(b': ')
             ui.write(b' ' * (max(0, width - len(label))))
             ui.write(b', '.join(ui.label(e, e) for e in effects.split()))
         ui.write(b'\n')
 
 
 @command(b'debugcreatestreamclonebundle', [], b'FILE')
 def debugcreatestreamclonebundle(ui, repo, fname):
     """create a stream clone bundle file
 
     Stream bundles are special bundles that are essentially archives of
     revlog files. They are commonly used for cloning very quickly.
     """
     # TODO we may want to turn this into an abort when this functionality
     # is moved into `hg bundle`.
     if phases.hassecret(repo):
         ui.warn(
             _(
                 b'(warning: stream clone bundle will contain secret '
                 b'revisions)\n'
             )
         )
 
     requirements, gen = streamclone.generatebundlev1(repo)
     changegroup.writechunks(ui, gen, fname)
 
     ui.write(_(b'bundle requirements: %s\n') % b', '.join(sorted(requirements)))
 
 
 @command(
     b'debugdag',
     [
         (b't', b'tags', None, _(b'use tags as labels')),
         (b'b', b'branches', None, _(b'annotate with branch names')),
         (b'', b'dots', None, _(b'use dots for runs')),
         (b's', b'spaces', None, _(b'separate elements by spaces')),
     ],
     _(b'[OPTION]... [FILE [REV]...]'),
     optionalrepo=True,
 )
 def debugdag(ui, repo, file_=None, *revs, **opts):
     """format the changelog or an index DAG as a concise textual description
 
     If you pass a revlog index, the revlog's DAG is emitted. If you list
     revision numbers, they get labeled in the output as rN.
 
     Otherwise, the changelog DAG of the current repo is emitted.
     """
     spaces = opts.get('spaces')
     dots = opts.get('dots')
     if file_:
         rlog = revlog.revlog(vfsmod.vfs(encoding.getcwd(), audit=False), file_)
         revs = set((int(r) for r in revs))
 
         def events():
             for r in rlog:
                 yield b'n', (r, list(p for p in rlog.parentrevs(r) if p != -1))
                 if r in revs:
                     yield b'l', (r, b"r%i" % r)
 
     elif repo:
         cl = repo.changelog
         tags = opts.get('tags')
         branches = opts.get('branches')
         if tags:
             labels = {}
             for l, n in repo.tags().items():
                 labels.setdefault(cl.rev(n), []).append(l)
 
         def events():
             b = b"default"
             for r in cl:
                 if branches:
                     newb = cl.read(cl.node(r))[5][b'branch']
                     if newb != b:
                         yield b'a', newb
                         b = newb
                 yield b'n', (r, list(p for p in cl.parentrevs(r) if p != -1))
                 if tags:
                     ls = labels.get(r)
                     if ls:
                         for l in ls:
                             yield b'l', (r, l)
 
     else:
         raise error.Abort(_(b'need repo for changelog dag'))
 
     for line in dagparser.dagtextlines(
         events(),
         addspaces=spaces,
         wraplabels=True,
         wrapannotations=True,
         wrapnonlinear=dots,
         usedots=dots,
         maxlinewidth=70,
     ):
         ui.write(line)
         ui.write(b"\n")
 
 
 @command(b'debugdata', cmdutil.debugrevlogopts, _(b'-c|-m|FILE REV'))
 def debugdata(ui, repo, file_, rev=None, **opts):
     """dump the contents of a data file revision"""
     opts = pycompat.byteskwargs(opts)
     if opts.get(b'changelog') or opts.get(b'manifest') or opts.get(b'dir'):
         if rev is not None:
             raise error.CommandError(b'debugdata', _(b'invalid arguments'))
         file_, rev = None, file_
     elif rev is None:
         raise error.CommandError(b'debugdata', _(b'invalid arguments'))
     r = cmdutil.openstorage(repo, b'debugdata', file_, opts)
     try:
         ui.write(r.rawdata(r.lookup(rev)))
     except KeyError:
         raise error.Abort(_(b'invalid revision identifier %s') % rev)
 
 
 @command(
     b'debugdate',
     [(b'e', b'extended', None, _(b'try extended date formats'))],
     _(b'[-e] DATE [RANGE]'),
     norepo=True,
     optionalrepo=True,
 )
 def debugdate(ui, date, range=None, **opts):
     """parse and display a date"""
     if opts["extended"]:
         d = dateutil.parsedate(date, dateutil.extendeddateformats)
     else:
         d = dateutil.parsedate(date)
     ui.writenoi18n(b"internal: %d %d\n" % d)
     ui.writenoi18n(b"standard: %s\n" % dateutil.datestr(d))
     if range:
         m = dateutil.matchdate(range)
         ui.writenoi18n(b"match: %s\n" % m(d[0]))
 
 
 @command(
     b'debugdeltachain',
     cmdutil.debugrevlogopts + cmdutil.formatteropts,
     _(b'-c|-m|FILE'),
     optionalrepo=True,
 )
 def debugdeltachain(ui, repo, file_=None, **opts):
     """dump information about delta chains in a revlog
 
     Output can be templatized. Available template keywords are:
 
     :``rev``:       revision number
     :``chainid``:   delta chain identifier (numbered by unique base)
     :``chainlen``:  delta chain length to this revision
     :``prevrev``:   previous revision in delta chain
     :``deltatype``: role of delta / how it was computed
     :``compsize``:  compressed size of revision
     :``uncompsize``: uncompressed size of revision
     :``chainsize``: total size of compressed revisions in chain
     :``chainratio``: total chain size divided by uncompressed revision size
                     (new delta chains typically start at ratio 2.00)
     :``lindist``:   linear distance from base revision in delta chain to end
                     of this revision
     :``extradist``: total size of revisions not part of this delta chain from
                     base of delta chain to end of this revision; a measurement
                     of how much extra data we need to read/seek across to read
                     the delta chain for this revision
     :``extraratio``: extradist divided by chainsize; another representation of
                     how much unrelated data is needed to load this delta chain
 
     If the repository is configured to use the sparse read, additional keywords
     are available:
 
     :``readsize``:     total size of data read from the disk for a revision
                        (sum of the sizes of all the blocks)
     :``largestblock``: size of the largest block of data read from the disk
     :``readdensity``:  density of useful bytes in the data read from the disk
     :``srchunks``:  in how many data hunks the whole revision would be read
 
     The sparse read can be enabled with experimental.sparse-read = True
     """
     opts = pycompat.byteskwargs(opts)
     r = cmdutil.openrevlog(repo, b'debugdeltachain', file_, opts)
     index = r.index
     start = r.start
     length = r.length
     generaldelta = r.version & revlog.FLAG_GENERALDELTA
     withsparseread = getattr(r, '_withsparseread', False)
 
     def revinfo(rev):
         e = index[rev]
         compsize = e[1]
         uncompsize = e[2]
         chainsize = 0
 
         if generaldelta:
             if e[3] == e[5]:
                 deltatype = b'p1'
             elif e[3] == e[6]:
                 deltatype = b'p2'
             elif e[3] == rev - 1:
                 deltatype = b'prev'
             elif e[3] == rev:
                 deltatype = b'base'
             else:
                 deltatype = b'other'
         else:
             if e[3] == rev:
                 deltatype = b'base'
             else:
                 deltatype = b'prev'
 
         chain = r._deltachain(rev)[0]
         for iterrev in chain:
             e = index[iterrev]
             chainsize += e[1]
 
         return compsize, uncompsize, deltatype, chain, chainsize
 
     fm = ui.formatter(b'debugdeltachain', opts)
 
     fm.plain(
         b'    rev  chain# chainlen     prev   delta       '
         b'size    rawsize  chainsize     ratio   lindist extradist '
         b'extraratio'
     )
     if withsparseread:
         fm.plain(b'   readsize largestblk rddensity srchunks')
     fm.plain(b'\n')
 
     chainbases = {}
     for rev in r:
         comp, uncomp, deltatype, chain, chainsize = revinfo(rev)
         chainbase = chain[0]
         chainid = chainbases.setdefault(chainbase, len(chainbases) + 1)
         basestart = start(chainbase)
         revstart = start(rev)
         lineardist = revstart + comp - basestart
         extradist = lineardist - chainsize
         try:
             prevrev = chain[-2]
         except IndexError:
             prevrev = -1
 
         if uncomp != 0:
             chainratio = float(chainsize) / float(uncomp)
         else:
             chainratio = chainsize
 
         if chainsize != 0:
             extraratio = float(extradist) / float(chainsize)
         else:
             extraratio = extradist
 
         fm.startitem()
         fm.write(
             b'rev chainid chainlen prevrev deltatype compsize '
             b'uncompsize chainsize chainratio lindist extradist '
             b'extraratio',
             b'%7d %7d %8d %8d %7s %10d %10d %10d %9.5f %9d %9d %10.5f',
             rev,
             chainid,
             len(chain),
             prevrev,
             deltatype,
             comp,
             uncomp,
             chainsize,
             chainratio,
             lineardist,
             extradist,
             extraratio,
             rev=rev,
             chainid=chainid,
             chainlen=len(chain),
             prevrev=prevrev,
             deltatype=deltatype,
             compsize=comp,
             uncompsize=uncomp,
             chainsize=chainsize,
             chainratio=chainratio,
             lindist=lineardist,
             extradist=extradist,
             extraratio=extraratio,
         )
         if withsparseread:
             readsize = 0
             largestblock = 0
             srchunks = 0
 
             for revschunk in deltautil.slicechunk(r, chain):
                 srchunks += 1
                 blkend = start(revschunk[-1]) + length(revschunk[-1])
                 blksize = blkend - start(revschunk[0])
 
                 readsize += blksize
                 if largestblock < blksize:
                     largestblock = blksize
 
             if readsize:
                 readdensity = float(chainsize) / float(readsize)
             else:
                 readdensity = 1
 
             fm.write(
                 b'readsize largestblock readdensity srchunks',
                 b' %10d %10d %9.5f %8d',
                 readsize,
                 largestblock,
                 readdensity,
                 srchunks,
                 readsize=readsize,
                 largestblock=largestblock,
                 readdensity=readdensity,
                 srchunks=srchunks,
             )
 
         fm.plain(b'\n')
 
     fm.end()
 
 
 @command(
     b'debugdirstate|debugstate',
     [
         (
             b'',
             b'nodates',
             None,
             _(b'do not display the saved mtime (DEPRECATED)'),
         ),
         (b'', b'dates', True, _(b'display the saved mtime')),
         (b'', b'datesort', None, _(b'sort by saved mtime')),
     ],
     _(b'[OPTION]...'),
 )
 def debugstate(ui, repo, **opts):
     """show the contents of the current dirstate"""
 
     nodates = not opts['dates']
     if opts.get('nodates') is not None:
         nodates = True
     datesort = opts.get('datesort')
 
     if datesort:
         keyfunc = lambda x: (x[1][3], x[0])  # sort by mtime, then by filename
     else:
         keyfunc = None  # sort by filename
     for file_, ent in sorted(pycompat.iteritems(repo.dirstate), key=keyfunc):
         if ent[3] == -1:
             timestr = b'unset               '
         elif nodates:
             timestr = b'set                 '
         else:
             timestr = time.strftime(
                 "%Y-%m-%d %H:%M:%S ", time.localtime(ent[3])
             )
             timestr = encoding.strtolocal(timestr)
         if ent[1] & 0o20000:
             mode = b'lnk'
         else:
             mode = b'%3o' % (ent[1] & 0o777 & ~util.umask)
         ui.write(b"%c %s %10d %s%s\n" % (ent[0], mode, ent[2], timestr, file_))
     for f in repo.dirstate.copies():
         ui.write(_(b"copy: %s -> %s\n") % (repo.dirstate.copied(f), f))
 
 
 @command(
     b'debugdiscovery',
     [
         (b'', b'old', None, _(b'use old-style discovery')),
         (
             b'',
             b'nonheads',
             None,
             _(b'use old-style discovery with non-heads included'),
         ),
         (b'', b'rev', [], b'restrict discovery to this set of revs'),
         (b'', b'seed', b'12323', b'specify the random seed use for discovery'),
     ]
     + cmdutil.remoteopts,
     _(b'[--rev REV] [OTHER]'),
 )
 def debugdiscovery(ui, repo, remoteurl=b"default", **opts):
     """runs the changeset discovery protocol in isolation"""
     opts = pycompat.byteskwargs(opts)
     remoteurl, branches = hg.parseurl(ui.expandpath(remoteurl))
     remote = hg.peer(repo, opts, remoteurl)
     ui.status(_(b'comparing with %s\n') % util.hidepassword(remoteurl))
 
     # make sure tests are repeatable
     random.seed(int(opts[b'seed']))
 
     if opts.get(b'old'):
 
         def doit(pushedrevs, remoteheads, remote=remote):
             if not util.safehasattr(remote, b'branches'):
                 # enable in-client legacy support
                 remote = localrepo.locallegacypeer(remote.local())
             common, _in, hds = treediscovery.findcommonincoming(
                 repo, remote, force=True
             )
             common = set(common)
             if not opts.get(b'nonheads'):
                 ui.writenoi18n(
                     b"unpruned common: %s\n"
                     % b" ".join(sorted(short(n) for n in common))
                 )
 
                 clnode = repo.changelog.node
                 common = repo.revs(b'heads(::%ln)', common)
                 common = {clnode(r) for r in common}
             return common, hds
 
     else:
 
         def doit(pushedrevs, remoteheads, remote=remote):
             nodes = None
             if pushedrevs:
                 revs = scmutil.revrange(repo, pushedrevs)
                 nodes = [repo[r].node() for r in revs]
             common, any, hds = setdiscovery.findcommonheads(
                 ui, repo, remote, ancestorsof=nodes
             )
             return common, hds
 
     remoterevs, _checkout = hg.addbranchrevs(repo, remote, branches, revs=None)
     localrevs = opts[b'rev']
     with util.timedcm('debug-discovery') as t:
         common, hds = doit(localrevs, remoterevs)
 
     # compute all statistics
     common = set(common)
     rheads = set(hds)
     lheads = set(repo.heads())
 
     data = {}
     data[b'elapsed'] = t.elapsed
     data[b'nb-common'] = len(common)
     data[b'nb-common-local'] = len(common & lheads)
     data[b'nb-common-remote'] = len(common & rheads)
     data[b'nb-common-both'] = len(common & rheads & lheads)
     data[b'nb-local'] = len(lheads)
     data[b'nb-local-missing'] = data[b'nb-local'] - data[b'nb-common-local']
     data[b'nb-remote'] = len(rheads)
     data[b'nb-remote-unknown'] = data[b'nb-remote'] - data[b'nb-common-remote']
     data[b'nb-revs'] = len(repo.revs(b'all()'))
     data[b'nb-revs-common'] = len(repo.revs(b'::%ln', common))
     data[b'nb-revs-missing'] = data[b'nb-revs'] - data[b'nb-revs-common']
 
     # display discovery summary
     ui.writenoi18n(b"elapsed time:  %(elapsed)f seconds\n" % data)
     ui.writenoi18n(b"heads summary:\n")
     ui.writenoi18n(b"  total common heads:  %(nb-common)9d\n" % data)
     ui.writenoi18n(b"    also local heads:  %(nb-common-local)9d\n" % data)
     ui.writenoi18n(b"    also remote heads: %(nb-common-remote)9d\n" % data)
     ui.writenoi18n(b"    both:              %(nb-common-both)9d\n" % data)
     ui.writenoi18n(b"  local heads:         %(nb-local)9d\n" % data)
     ui.writenoi18n(b"    common:            %(nb-common-local)9d\n" % data)
     ui.writenoi18n(b"    missing:           %(nb-local-missing)9d\n" % data)
     ui.writenoi18n(b"  remote heads:        %(nb-remote)9d\n" % data)
     ui.writenoi18n(b"    common:            %(nb-common-remote)9d\n" % data)
     ui.writenoi18n(b"    unknown:           %(nb-remote-unknown)9d\n" % data)
     ui.writenoi18n(b"local changesets:      %(nb-revs)9d\n" % data)
     ui.writenoi18n(b"  common:              %(nb-revs-common)9d\n" % data)
     ui.writenoi18n(b"  missing:             %(nb-revs-missing)9d\n" % data)
 
     if ui.verbose:
         ui.writenoi18n(
             b"common heads: %s\n" % b" ".join(sorted(short(n) for n in common))
         )
 
 
 _chunksize = 4 << 10
 
 
 @command(
     b'debugdownload', [(b'o', b'output', b'', _(b'path')),], optionalrepo=True
 )
 def debugdownload(ui, repo, url, output=None, **opts):
     """download a resource using Mercurial logic and config
     """
     fh = urlmod.open(ui, url, output)
 
     dest = ui
     if output:
         dest = open(output, b"wb", _chunksize)
     try:
         data = fh.read(_chunksize)
         while data:
             dest.write(data)
             data = fh.read(_chunksize)
     finally:
         if output:
             dest.close()
 
 
 @command(b'debugextensions', cmdutil.formatteropts, [], optionalrepo=True)
 def debugextensions(ui, repo, **opts):
     '''show information about active extensions'''
     opts = pycompat.byteskwargs(opts)
     exts = extensions.extensions(ui)
     hgver = util.version()
     fm = ui.formatter(b'debugextensions', opts)
     for extname, extmod in sorted(exts, key=operator.itemgetter(0)):
         isinternal = extensions.ismoduleinternal(extmod)
         extsource = None
 
         if util.safehasattr(extmod, '__file__'):
             extsource = pycompat.fsencode(extmod.__file__)
         elif getattr(sys, 'oxidized', False):
             extsource = pycompat.sysexecutable
         if isinternal:
             exttestedwith = []  # never expose magic string to users
         else:
             exttestedwith = getattr(extmod, 'testedwith', b'').split()
         extbuglink = getattr(extmod, 'buglink', None)
 
         fm.startitem()
 
         if ui.quiet or ui.verbose:
             fm.write(b'name', b'%s\n', extname)
         else:
             fm.write(b'name', b'%s', extname)
             if isinternal or hgver in exttestedwith:
                 fm.plain(b'\n')
             elif not exttestedwith:
                 fm.plain(_(b' (untested!)\n'))
             else:
                 lasttestedversion = exttestedwith[-1]
                 fm.plain(b' (%s!)\n' % lasttestedversion)
 
         fm.condwrite(
             ui.verbose and extsource,
             b'source',
             _(b'  location: %s\n'),
             extsource or b"",
         )
 
         if ui.verbose:
             fm.plain(_(b'  bundled: %s\n') % [b'no', b'yes'][isinternal])
         fm.data(bundled=isinternal)
 
         fm.condwrite(
             ui.verbose and exttestedwith,
             b'testedwith',
             _(b'  tested with: %s\n'),
             fm.formatlist(exttestedwith, name=b'ver'),
         )
 
         fm.condwrite(
             ui.verbose and extbuglink,
             b'buglink',
             _(b'  bug reporting: %s\n'),
             extbuglink or b"",
         )
 
     fm.end()
 
 
 @command(
     b'debugfileset',
     [
         (
             b'r',
             b'rev',
             b'',
             _(b'apply the filespec on this revision'),
             _(b'REV'),
         ),
         (
             b'',
             b'all-files',
             False,
             _(b'test files from all revisions and working directory'),
         ),
         (
             b's',
             b'show-matcher',
             None,
             _(b'print internal representation of matcher'),
         ),
         (
             b'p',
             b'show-stage',
             [],
             _(b'print parsed tree at the given stage'),
             _(b'NAME'),
         ),
     ],
     _(b'[-r REV] [--all-files] [OPTION]... FILESPEC'),
 )
 def debugfileset(ui, repo, expr, **opts):
     '''parse and apply a fileset specification'''
     from . import fileset
 
     fileset.symbols  # force import of fileset so we have predicates to optimize
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get(b'rev'), None)
 
     stages = [
         (b'parsed', pycompat.identity),
         (b'analyzed', filesetlang.analyze),
         (b'optimized', filesetlang.optimize),
     ]
     stagenames = set(n for n, f in stages)
 
     showalways = set()
     if ui.verbose and not opts[b'show_stage']:
         # show parsed tree by --verbose (deprecated)
         showalways.add(b'parsed')
     if opts[b'show_stage'] == [b'all']:
         showalways.update(stagenames)
     else:
         for n in opts[b'show_stage']:
             if n not in stagenames:
                 raise error.Abort(_(b'invalid stage name: %s') % n)
         showalways.update(opts[b'show_stage'])
 
     tree = filesetlang.parse(expr)
     for n, f in stages:
         tree = f(tree)
         if n in showalways:
             if opts[b'show_stage'] or n != b'parsed':
                 ui.write(b"* %s:\n" % n)
             ui.write(filesetlang.prettyformat(tree), b"\n")
 
     files = set()
     if opts[b'all_files']:
         for r in repo:
             c = repo[r]
             files.update(c.files())
             files.update(c.substate)
     if opts[b'all_files'] or ctx.rev() is None:
         wctx = repo[None]
         files.update(
             repo.dirstate.walk(
                 scmutil.matchall(repo),
                 subrepos=list(wctx.substate),
                 unknown=True,
                 ignored=True,
             )
         )
         files.update(wctx.substate)
     else:
         files.update(ctx.files())
         files.update(ctx.substate)
 
     m = ctx.matchfileset(repo.getcwd(), expr)
     if opts[b'show_matcher'] or (opts[b'show_matcher'] is None and ui.verbose):
         ui.writenoi18n(b'* matcher:\n', stringutil.prettyrepr(m), b'\n')
     for f in sorted(files):
         if not m(f):
             continue
         ui.write(b"%s\n" % f)
 
 
 @command(b'debugformat', [] + cmdutil.formatteropts)
 def debugformat(ui, repo, **opts):
     """display format information about the current repository
 
     Use --verbose to get extra information about current config value and
     Mercurial default."""
     opts = pycompat.byteskwargs(opts)
     maxvariantlength = max(len(fv.name) for fv in upgrade.allformatvariant)
     maxvariantlength = max(len(b'format-variant'), maxvariantlength)
 
     def makeformatname(name):
         return b'%s:' + (b' ' * (maxvariantlength - len(name)))
 
     fm = ui.formatter(b'debugformat', opts)
     if fm.isplain():
 
         def formatvalue(value):
             if util.safehasattr(value, b'startswith'):
                 return value
             if value:
                 return b'yes'
             else:
                 return b'no'
 
     else:
         formatvalue = pycompat.identity
 
     fm.plain(b'format-variant')
     fm.plain(b' ' * (maxvariantlength - len(b'format-variant')))
     fm.plain(b' repo')
     if ui.verbose:
         fm.plain(b' config default')
     fm.plain(b'\n')
     for fv in upgrade.allformatvariant:
         fm.startitem()
         repovalue = fv.fromrepo(repo)
         configvalue = fv.fromconfig(repo)
 
         if repovalue != configvalue:
             namelabel = b'formatvariant.name.mismatchconfig'
             repolabel = b'formatvariant.repo.mismatchconfig'
         elif repovalue != fv.default:
             namelabel = b'formatvariant.name.mismatchdefault'
             repolabel = b'formatvariant.repo.mismatchdefault'
         else:
             namelabel = b'formatvariant.name.uptodate'
             repolabel = b'formatvariant.repo.uptodate'
 
         fm.write(b'name', makeformatname(fv.name), fv.name, label=namelabel)
         fm.write(b'repo', b' %3s', formatvalue(repovalue), label=repolabel)
         if fv.default != configvalue:
             configlabel = b'formatvariant.config.special'
         else:
             configlabel = b'formatvariant.config.default'
         fm.condwrite(
             ui.verbose,
             b'config',
             b' %6s',
             formatvalue(configvalue),
             label=configlabel,
         )
         fm.condwrite(
             ui.verbose,
             b'default',
             b' %7s',
             formatvalue(fv.default),
             label=b'formatvariant.default',
         )
         fm.plain(b'\n')
     fm.end()
 
 
 @command(b'debugfsinfo', [], _(b'[PATH]'), norepo=True)
 def debugfsinfo(ui, path=b"."):
     """show information detected about current filesystem"""
     ui.writenoi18n(b'path: %s\n' % path)
     ui.writenoi18n(
         b'mounted on: %s\n' % (util.getfsmountpoint(path) or b'(unknown)')
     )
     ui.writenoi18n(b'exec: %s\n' % (util.checkexec(path) and b'yes' or b'no'))
     ui.writenoi18n(b'fstype: %s\n' % (util.getfstype(path) or b'(unknown)'))
     ui.writenoi18n(
         b'symlink: %s\n' % (util.checklink(path) and b'yes' or b'no')
     )
     ui.writenoi18n(
         b'hardlink: %s\n' % (util.checknlink(path) and b'yes' or b'no')
     )
     casesensitive = b'(unknown)'
     try:
         with pycompat.namedtempfile(prefix=b'.debugfsinfo', dir=path) as f:
             casesensitive = util.fscasesensitive(f.name) and b'yes' or b'no'
     except OSError:
         pass
     ui.writenoi18n(b'case-sensitive: %s\n' % casesensitive)
 
 
 @command(
     b'debuggetbundle',
     [
         (b'H', b'head', [], _(b'id of head node'), _(b'ID')),
         (b'C', b'common', [], _(b'id of common node'), _(b'ID')),
         (
             b't',
             b'type',
             b'bzip2',
             _(b'bundle compression type to use'),
             _(b'TYPE'),
         ),
     ],
     _(b'REPO FILE [-H|-C ID]...'),
     norepo=True,
 )
 def debuggetbundle(ui, repopath, bundlepath, head=None, common=None, **opts):
     """retrieves a bundle from a repo
 
     Every ID must be a full-length hex node id string. Saves the bundle to the
     given file.
     """
     opts = pycompat.byteskwargs(opts)
     repo = hg.peer(ui, opts, repopath)
     if not repo.capable(b'getbundle'):
         raise error.Abort(b"getbundle() not supported by target repository")
     args = {}
     if common:
         args['common'] = [bin(s) for s in common]
     if head:
         args['heads'] = [bin(s) for s in head]
     # TODO: get desired bundlecaps from command line.
     args['bundlecaps'] = None
     bundle = repo.getbundle(b'debug', **args)
 
     bundletype = opts.get(b'type', b'bzip2').lower()
     btypes = {
         b'none': b'HG10UN',
         b'bzip2': b'HG10BZ',
         b'gzip': b'HG10GZ',
         b'bundle2': b'HG20',
     }
     bundletype = btypes.get(bundletype)
     if bundletype not in bundle2.bundletypes:
         raise error.Abort(_(b'unknown bundle type specified with --type'))
     bundle2.writebundle(ui, bundle, bundlepath, bundletype)
 
 
 @command(b'debugignore', [], b'[FILE]')
 def debugignore(ui, repo, *files, **opts):
     """display the combined ignore pattern and information about ignored files
 
     With no argument display the combined ignore pattern.
 
     Given space separated file names, shows if the given file is ignored and
     if so, show the ignore rule (file and line number) that matched it.
     """
     ignore = repo.dirstate._ignore
     if not files:
         # Show all the patterns
         ui.write(b"%s\n" % pycompat.byterepr(ignore))
     else:
         m = scmutil.match(repo[None], pats=files)
         uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
         for f in m.files():
             nf = util.normpath(f)
             ignored = None
             ignoredata = None
             if nf != b'.':
                 if ignore(nf):
                     ignored = nf
                     ignoredata = repo.dirstate._ignorefileandline(nf)
                 else:
                     for p in pathutil.finddirs(nf):
                         if ignore(p):
                             ignored = p
                             ignoredata = repo.dirstate._ignorefileandline(p)
                             break
             if ignored:
                 if ignored == nf:
                     ui.write(_(b"%s is ignored\n") % uipathfn(f))
                 else:
                     ui.write(
                         _(
                             b"%s is ignored because of "
                             b"containing directory %s\n"
                         )
                         % (uipathfn(f), ignored)
                     )
                 ignorefile, lineno, line = ignoredata
                 ui.write(
                     _(b"(ignore rule in %s, line %d: '%s')\n")
                     % (ignorefile, lineno, line)
                 )
             else:
                 ui.write(_(b"%s is not ignored\n") % uipathfn(f))
 
 
 @command(
     b'debugindex',
     cmdutil.debugrevlogopts + cmdutil.formatteropts,
     _(b'-c|-m|FILE'),
 )
 def debugindex(ui, repo, file_=None, **opts):
     """dump index data for a storage primitive"""
     opts = pycompat.byteskwargs(opts)
     store = cmdutil.openstorage(repo, b'debugindex', file_, opts)
 
     if ui.debugflag:
         shortfn = hex
     else:
         shortfn = short
 
     idlen = 12
     for i in store:
         idlen = len(shortfn(store.node(i)))
         break
 
     fm = ui.formatter(b'debugindex', opts)
     fm.plain(
         b'   rev linkrev %s %s p2\n'
         % (b'nodeid'.ljust(idlen), b'p1'.ljust(idlen))
     )
 
     for rev in store:
         node = store.node(rev)
         parents = store.parents(node)
 
         fm.startitem()
         fm.write(b'rev', b'%6d ', rev)
         fm.write(b'linkrev', b'%7d ', store.linkrev(rev))
         fm.write(b'node', b'%s ', shortfn(node))
         fm.write(b'p1', b'%s ', shortfn(parents[0]))
         fm.write(b'p2', b'%s', shortfn(parents[1]))
         fm.plain(b'\n')
 
     fm.end()
 
 
 @command(
     b'debugindexdot',
     cmdutil.debugrevlogopts,
     _(b'-c|-m|FILE'),
     optionalrepo=True,
 )
 def debugindexdot(ui, repo, file_=None, **opts):
     """dump an index DAG as a graphviz dot file"""
     opts = pycompat.byteskwargs(opts)
     r = cmdutil.openstorage(repo, b'debugindexdot', file_, opts)
     ui.writenoi18n(b"digraph G {\n")
     for i in r:
         node = r.node(i)
         pp = r.parents(node)
         ui.write(b"\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write(b"\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write(b"}\n")
 
 
 @command(b'debugindexstats', [])
 def debugindexstats(ui, repo):
     """show stats related to the changelog index"""
     repo.changelog.shortest(nullid, 1)
     index = repo.changelog.index
     if not util.safehasattr(index, b'stats'):
         raise error.Abort(_(b'debugindexstats only works with native code'))
     for k, v in sorted(index.stats().items()):
         ui.write(b'%s: %d\n' % (k, v))
 
 
 @command(b'debuginstall', [] + cmdutil.formatteropts, b'', norepo=True)
 def debuginstall(ui, **opts):
     '''test Mercurial installation
 
     Returns 0 on success.
     '''
     opts = pycompat.byteskwargs(opts)
 
     problems = 0
 
     fm = ui.formatter(b'debuginstall', opts)
     fm.startitem()
 
     # encoding
     fm.write(b'encoding', _(b"checking encoding (%s)...\n"), encoding.encoding)
     err = None
     try:
         codecs.lookup(pycompat.sysstr(encoding.encoding))
     except LookupError as inst:
         err = stringutil.forcebytestr(inst)
         problems += 1
     fm.condwrite(
         err,
         b'encodingerror',
         _(b" %s\n (check that your locale is properly set)\n"),
         err,
     )
 
     # Python
     pythonlib = None
     if util.safehasattr(os, '__file__'):
         pythonlib = os.path.dirname(pycompat.fsencode(os.__file__))
     elif getattr(sys, 'oxidized', False):
         pythonlib = pycompat.sysexecutable
 
     fm.write(
         b'pythonexe',
         _(b"checking Python executable (%s)\n"),
         pycompat.sysexecutable or _(b"unknown"),
     )
     fm.write(
         b'pythonimplementation',
         _(b"checking Python implementation (%s)\n"),
         pycompat.sysbytes(platform.python_implementation()),
     )
     fm.write(
         b'pythonver',
         _(b"checking Python version (%s)\n"),
         (b"%d.%d.%d" % sys.version_info[:3]),
     )
     fm.write(
         b'pythonlib',
         _(b"checking Python lib (%s)...\n"),
         pythonlib or _(b"unknown"),
     )
 
     security = set(sslutil.supportedprotocols)
     if sslutil.hassni:
         security.add(b'sni')
 
     fm.write(
         b'pythonsecurity',
         _(b"checking Python security support (%s)\n"),
         fm.formatlist(sorted(security), name=b'protocol', fmt=b'%s', sep=b','),
     )
 
     # These are warnings, not errors. So don't increment problem count. This
     # may change in the future.
     if b'tls1.2' not in security:
         fm.plain(
             _(
                 b'  TLS 1.2 not supported by Python install; '
                 b'network connections lack modern security\n'
             )
         )
     if b'sni' not in security:
         fm.plain(
             _(
                 b'  SNI not supported by Python install; may have '
                 b'connectivity issues with some servers\n'
             )
         )
 
     # TODO print CA cert info
 
     # hg version
     hgver = util.version()
     fm.write(
         b'hgver', _(b"checking Mercurial version (%s)\n"), hgver.split(b'+')[0]
     )
     fm.write(
         b'hgverextra',
         _(b"checking Mercurial custom build (%s)\n"),
         b'+'.join(hgver.split(b'+')[1:]),
     )
 
     # compiled modules
     hgmodules = None
     if util.safehasattr(sys.modules[__name__], '__file__'):
         hgmodules = os.path.dirname(pycompat.fsencode(__file__))
     elif getattr(sys, 'oxidized', False):
         hgmodules = pycompat.sysexecutable
 
     fm.write(
         b'hgmodulepolicy', _(b"checking module policy (%s)\n"), policy.policy
     )
     fm.write(
         b'hgmodules',
         _(b"checking installed modules (%s)...\n"),
         hgmodules or _(b"unknown"),
     )
 
     rustandc = policy.policy in (b'rust+c', b'rust+c-allow')
     rustext = rustandc  # for now, that's the only case
     cext = policy.policy in (b'c', b'allow') or rustandc
     nopure = cext or rustext
     if nopure:
         err = None
         try:
             if cext:
                 from .cext import (  # pytype: disable=import-error
                     base85,
                     bdiff,
                     mpatch,
                     osutil,
                 )
 
                 # quiet pyflakes
                 dir(bdiff), dir(mpatch), dir(base85), dir(osutil)
             if rustext:
                 from .rustext import (  # pytype: disable=import-error
                     ancestor,
                     dirstate,
                 )
 
                 dir(ancestor), dir(dirstate)  # quiet pyflakes
         except Exception as inst:
             err = stringutil.forcebytestr(inst)
             problems += 1
         fm.condwrite(err, b'extensionserror', b" %s\n", err)
 
     compengines = util.compengines._engines.values()
     fm.write(
         b'compengines',
         _(b'checking registered compression engines (%s)\n'),
         fm.formatlist(
             sorted(e.name() for e in compengines),
             name=b'compengine',
             fmt=b'%s',
             sep=b', ',
         ),
     )
     fm.write(
         b'compenginesavail',
         _(b'checking available compression engines (%s)\n'),
         fm.formatlist(
             sorted(e.name() for e in compengines if e.available()),
             name=b'compengine',
             fmt=b'%s',
             sep=b', ',
         ),
     )
     wirecompengines = compression.compengines.supportedwireengines(
         compression.SERVERROLE
     )
     fm.write(
         b'compenginesserver',
         _(
             b'checking available compression engines '
             b'for wire protocol (%s)\n'
         ),
         fm.formatlist(
             [e.name() for e in wirecompengines if e.wireprotosupport()],
             name=b'compengine',
             fmt=b'%s',
             sep=b', ',
         ),
     )
     re2 = b'missing'
     if util._re2:
         re2 = b'available'
     fm.plain(_(b'checking "re2" regexp engine (%s)\n') % re2)
     fm.data(re2=bool(util._re2))
 
     # templates
     p = templater.templatepaths()
     fm.write(b'templatedirs', b'checking templates (%s)...\n', b' '.join(p))
     fm.condwrite(not p, b'', _(b" no template directories found\n"))
     if p:
         m = templater.templatepath(b"map-cmdline.default")
         if m:
             # template found, check if it is working
             err = None
             try:
                 templater.templater.frommapfile(m)
             except Exception as inst:
                 err = stringutil.forcebytestr(inst)
                 p = None
             fm.condwrite(err, b'defaulttemplateerror', b" %s\n", err)
         else:
             p = None
         fm.condwrite(
             p, b'defaulttemplate', _(b"checking default template (%s)\n"), m
         )
         fm.condwrite(
             not m,
             b'defaulttemplatenotfound',
             _(b" template '%s' not found\n"),
             b"default",
         )
     if not p:
         problems += 1
     fm.condwrite(
         not p, b'', _(b" (templates seem to have been installed incorrectly)\n")
     )
 
     # editor
     editor = ui.geteditor()
     editor = util.expandpath(editor)
     editorbin = procutil.shellsplit(editor)[0]
     fm.write(b'editor', _(b"checking commit editor... (%s)\n"), editorbin)
     cmdpath = procutil.findexe(editorbin)
     fm.condwrite(
         not cmdpath and editor == b'vi',
         b'vinotfound',
         _(
             b" No commit editor set and can't find %s in PATH\n"
             b" (specify a commit editor in your configuration"
             b" file)\n"
         ),
         not cmdpath and editor == b'vi' and editorbin,
     )
     fm.condwrite(
         not cmdpath and editor != b'vi',
         b'editornotfound',
         _(
             b" Can't find editor '%s' in PATH\n"
             b" (specify a commit editor in your configuration"
             b" file)\n"
         ),
         not cmdpath and editorbin,
     )
     if not cmdpath and editor != b'vi':
         problems += 1
 
     # check username
     username = None
     err = None
     try:
         username = ui.username()
     except error.Abort as e:
         err = stringutil.forcebytestr(e)
         problems += 1
 
     fm.condwrite(
         username, b'username', _(b"checking username (%s)\n"), username
     )
     fm.condwrite(
         err,
         b'usernameerror',
         _(
             b"checking username...\n %s\n"
             b" (specify a username in your configuration file)\n"
         ),
         err,
     )
 
     for name, mod in extensions.extensions():
         handler = getattr(mod, 'debuginstall', None)
         if handler is not None:
             problems += handler(ui, fm)
 
     fm.condwrite(not problems, b'', _(b"no problems detected\n"))
     if not problems:
         fm.data(problems=problems)
     fm.condwrite(
         problems,
         b'problems',
         _(b"%d problems detected, please check your install!\n"),
         problems,
     )
     fm.end()
 
     return problems
 
 
 @command(b'debugknown', [], _(b'REPO ID...'), norepo=True)
 def debugknown(ui, repopath, *ids, **opts):
     """test whether node ids are known to a repo
 
     Every ID must be a full-length hex node id string. Returns a list of 0s
     and 1s indicating unknown/known.
     """
     opts = pycompat.byteskwargs(opts)
     repo = hg.peer(ui, opts, repopath)
     if not repo.capable(b'known'):
         raise error.Abort(b"known() not supported by target repository")
     flags = repo.known([bin(s) for s in ids])
     ui.write(b"%s\n" % (b"".join([f and b"1" or b"0" for f in flags])))
 
 
 @command(b'debuglabelcomplete', [], _(b'LABEL...'))
 def debuglabelcomplete(ui, repo, *args):
     '''backwards compatibility with old bash completion scripts (DEPRECATED)'''
     debugnamecomplete(ui, repo, *args)
 
 
 @command(
     b'debuglocks',
     [
         (b'L', b'force-lock', None, _(b'free the store lock (DANGEROUS)')),
         (
             b'W',
             b'force-wlock',
             None,
             _(b'free the working state lock (DANGEROUS)'),
         ),
         (b's', b'set-lock', None, _(b'set the store lock until stopped')),
         (
             b'S',
             b'set-wlock',
             None,
             _(b'set the working state lock until stopped'),
         ),
     ],
     _(b'[OPTION]...'),
 )
 def debuglocks(ui, repo, **opts):
     """show or modify state of locks
 
     By default, this command will show which locks are held. This
     includes the user and process holding the lock, the amount of time
     the lock has been held, and the machine name where the process is
     running if it's not local.
 
     Locks protect the integrity of Mercurial's data, so should be
     treated with care. System crashes or other interruptions may cause
     locks to not be properly released, though Mercurial will usually
     detect and remove such stale locks automatically.
 
     However, detecting stale locks may not always be possible (for
     instance, on a shared filesystem). Removing locks may also be
     blocked by filesystem permissions.
 
     Setting a lock will prevent other commands from changing the data.
     The command will wait until an interruption (SIGINT, SIGTERM, ...) occurs.
     The set locks are removed when the command exits.
 
     Returns 0 if no locks are held.
 
     """
 
     if opts.get('force_lock'):
         repo.svfs.unlink(b'lock')
     if opts.get('force_wlock'):
         repo.vfs.unlink(b'wlock')
     if opts.get('force_lock') or opts.get('force_wlock'):
         return 0
 
     locks = []
     try:
         if opts.get('set_wlock'):
             try:
                 locks.append(repo.wlock(False))
             except error.LockHeld:
                 raise error.Abort(_(b'wlock is already held'))
         if opts.get('set_lock'):
             try:
                 locks.append(repo.lock(False))
             except error.LockHeld:
                 raise error.Abort(_(b'lock is already held'))
         if len(locks):
             ui.promptchoice(_(b"ready to release the lock (y)? $$ &Yes"))
             return 0
     finally:
         release(*locks)
 
     now = time.time()
     held = 0
 
     def report(vfs, name, method):
         # this causes stale locks to get reaped for more accurate reporting
         try:
             l = method(False)
         except error.LockHeld:
             l = None
 
         if l:
             l.release()
         else:
             try:
                 st = vfs.lstat(name)
                 age = now - st[stat.ST_MTIME]
                 user = util.username(st.st_uid)
                 locker = vfs.readlock(name)
                 if b":" in locker:
                     host, pid = locker.split(b':')
                     if host == socket.gethostname():
                         locker = b'user %s, process %s' % (user or b'None', pid)
                     else:
                         locker = b'user %s, process %s, host %s' % (
                             user or b'None',
                             pid,
                             host,
                         )
                 ui.writenoi18n(b"%-6s %s (%ds)\n" % (name + b":", locker, age))
                 return 1
             except OSError as e:
                 if e.errno != errno.ENOENT:
                     raise
 
         ui.writenoi18n(b"%-6s free\n" % (name + b":"))
         return 0
 
     held += report(repo.svfs, b"lock", repo.lock)
     held += report(repo.vfs, b"wlock", repo.wlock)
 
     return held
 
 
 @command(
     b'debugmanifestfulltextcache',
     [
         (b'', b'clear', False, _(b'clear the cache')),
         (
             b'a',
             b'add',
             [],
             _(b'add the given manifest nodes to the cache'),
             _(b'NODE'),
         ),
     ],
     b'',
 )
 def debugmanifestfulltextcache(ui, repo, add=(), **opts):
     """show, clear or amend the contents of the manifest fulltext cache"""
 
     def getcache():
         r = repo.manifestlog.getstorage(b'')
         try:
             return r._fulltextcache
         except AttributeError:
             msg = _(
                 b"Current revlog implementation doesn't appear to have a "
                 b"manifest fulltext cache\n"
             )
             raise error.Abort(msg)
 
     if opts.get('clear'):
         with repo.wlock():
             cache = getcache()
             cache.clear(clear_persisted_data=True)
             return
 
     if add:
         with repo.wlock():
             m = repo.manifestlog
             store = m.getstorage(b'')
             for n in add:
                 try:
                     manifest = m[store.lookup(n)]
                 except error.LookupError as e:
                     raise error.Abort(e, hint=b"Check your manifest node id")
                 manifest.read()  # stores revisision in cache too
             return
 
     cache = getcache()
     if not len(cache):
         ui.write(_(b'cache empty\n'))
     else:
         ui.write(
             _(
                 b'cache contains %d manifest entries, in order of most to '
                 b'least recent:\n'
             )
             % (len(cache),)
         )
         totalsize = 0
         for nodeid in cache:
             # Use cache.get to not update the LRU order
             data = cache.peek(nodeid)
             size = len(data)
             totalsize += size + 24  # 20 bytes nodeid, 4 bytes size
             ui.write(
                 _(b'id: %s, size %s\n') % (hex(nodeid), util.bytecount(size))
             )
         ondisk = cache._opener.stat(b'manifestfulltextcache').st_size
         ui.write(
             _(b'total cache data size %s, on-disk %s\n')
             % (util.bytecount(totalsize), util.bytecount(ondisk))
         )
 
 
-@command(b'debugmergestate', [], b'')
-def debugmergestate(ui, repo, *args):
+@command(b'debugmergestate', [] + cmdutil.templateopts, b'')
+def debugmergestate(ui, repo, *args, **opts):
     """print merge state
 
     Use --verbose to print out information about whether v1 or v2 merge state
     was chosen."""
 
-    def _hashornull(h):
-        if h == nullhex:
-            return b'null'
-        else:
-            return h
-
-    def printrecords(version):
-        ui.writenoi18n(b'* version %d records\n' % version)
-        if version == 1:
-            records = v1records
-        else:
-            records = v2records
-
-        for rtype, record in records:
-            # pretty print some record types
-            if rtype == b'L':
-                ui.writenoi18n(b'local: %s\n' % record)
-            elif rtype == b'O':
-                ui.writenoi18n(b'other: %s\n' % record)
-            elif rtype == b'm':
-                driver, mdstate = record.split(b'\0', 1)
-                ui.writenoi18n(
-                    b'merge driver: %s (state "%s")\n' % (driver, mdstate)
-                )
-            elif rtype in b'FDC':
-                r = record.split(b'\0')
-                f, state, hash, lfile, afile, anode, ofile = r[0:7]
-                if version == 1:
-                    onode = b'not stored in v1 format'
-                    flags = r[7]
-                else:
-                    onode, flags = r[7:9]
-                ui.writenoi18n(
-                    b'file: %s (record type "%s", state "%s", hash %s)\n'
-                    % (f, rtype, state, _hashornull(hash))
-                )
-                ui.writenoi18n(
-                    b'  local path: %s (flags "%s")\n' % (lfile, flags)
-                )
-                ui.writenoi18n(
-                    b'  ancestor path: %s (node %s)\n'
-                    % (afile, _hashornull(anode))
-                )
-                ui.writenoi18n(
-                    b'  other path: %s (node %s)\n'
-                    % (ofile, _hashornull(onode))
-                )
-            elif rtype == b'f':
-                filename, rawextras = record.split(b'\0', 1)
-                extras = rawextras.split(b'\0')
-                i = 0
-                extrastrings = []
-                while i < len(extras):
-                    extrastrings.append(b'%s = %s' % (extras[i], extras[i + 1]))
-                    i += 2
-
-                ui.writenoi18n(
-                    b'file extras: %s (%s)\n'
-                    % (filename, b', '.join(extrastrings))
-                )
-            elif rtype == b'l':
-                labels = record.split(b'\0', 2)
-                labels = [l for l in labels if len(l) > 0]
-                ui.writenoi18n(b'labels:\n')
-                ui.write((b'  local: %s\n' % labels[0]))
-                ui.write((b'  other: %s\n' % labels[1]))
-                if len(labels) > 2:
-                    ui.write((b'  base:  %s\n' % labels[2]))
-            else:
-                ui.writenoi18n(
-                    b'unrecognized entry: %s\t%s\n'
-                    % (rtype, record.replace(b'\0', b'\t'))
-                )
-
-    # Avoid mergestate.read() since it may raise an exception for unsupported
-    # merge state records. We shouldn't be doing this, but this is OK since this
-    # command is pretty low-level.
+    if ui.verbose:
     ms = mergemod.mergestate(repo)
 
     # sort so that reasonable information is on top
     v1records = ms._readrecordsv1()
     v2records = ms._readrecordsv2()
-    order = b'LOml'
-
-    def key(r):
-        idx = order.find(r[0])
-        if idx == -1:
-            return (1, r[1])
-        else:
-            return (0, idx)
-
-    v1records.sort(key=key)
-    v2records.sort(key=key)
 
     if not v1records and not v2records:
-        ui.writenoi18n(b'no merge state found\n')
+            pass
     elif not v2records:
-        ui.notenoi18n(b'no version 2 merge state\n')
-        printrecords(1)
+            ui.writenoi18n(b'no version 2 merge state\n')
     elif ms._v1v2match(v1records, v2records):
-        ui.notenoi18n(b'v1 and v2 states match: using v2\n')
-        printrecords(2)
+            ui.writenoi18n(b'v1 and v2 states match: using v2\n')
     else:
-        ui.notenoi18n(b'v1 and v2 states mismatch: using v1\n')
-        printrecords(1)
-        if ui.verbose:
-            printrecords(2)
+            ui.writenoi18n(b'v1 and v2 states mismatch: using v1\n')
+
+    opts = pycompat.byteskwargs(opts)
+    if not opts[b'template']:
+        opts[b'template'] = (
+            b'{if(commits, "", "no merge state found\n")}'
+            b'{commits % "{name}{if(label, " ({label})")}: {node}\n"}'
+            b'{files % "file: {path} (state \\"{state}\\")\n'
+            b'  local path: {local_path} (flags \\"{local_flags}\\")\n'
+            b'  ancestor path: {ancestor_path} (node {ancestor_node})\n'
+            b'  other path: {other_path} (node {other_node})\n'
+            b'{extras % "  extra: {key} = {value}\n"}'
+            b'"}'
+        )
+
+    ms = mergemod.mergestate.read(repo)
+
+    fm = ui.formatter(b'debugmergestate', opts)
+    fm.startitem()
+
+    fm_commits = fm.nested(b'commits')
+    if ms.active():
+        for name, node, label_index in (
+            (b'local', ms.local, 0),
+            (b'other', ms.other, 1),
+        ):
+            fm_commits.startitem()
+            fm_commits.data(name=name)
+            fm_commits.data(node=hex(node))
+            if ms._labels and len(ms._labels) > label_index:
+                fm_commits.data(label=ms._labels[label_index])
+    fm_commits.end()
+
+    fm_files = fm.nested(b'files')
+    if ms.active():
+        for f in ms:
+            fm_files.startitem()
+            fm_files.data(path=f)
+            state = ms._state[f]
+            fm_files.data(state=state[0])
+            fm_files.data(local_key=state[1])
+            fm_files.data(local_path=state[2])
+            fm_files.data(ancestor_path=state[3])
+            fm_files.data(ancestor_node=state[4])
+            fm_files.data(other_path=state[5])
+            fm_files.data(other_node=state[6])
+            fm_files.data(local_flags=state[7])
+            fm_extras = fm_files.nested(b'extras')
+            for k, v in ms.extras(f).items():
+                fm_extras.startitem()
+                fm_extras.data(key=k)
+                fm_extras.data(value=v)
+            fm_extras.end()
+
+    fm_files.end()
+
+    fm.end()
 
 
 @command(b'debugnamecomplete', [], _(b'NAME...'))
 def debugnamecomplete(ui, repo, *args):
     '''complete "names" - tags, open branch names, bookmark names'''
 
     names = set()
     # since we previously only listed open branches, we will handle that
     # specially (after this for loop)
     for name, ns in pycompat.iteritems(repo.names):
         if name != b'branches':
             names.update(ns.listnames(repo))
     names.update(
         tag
         for (tag, heads, tip, closed) in repo.branchmap().iterbranches()
         if not closed
     )
     completions = set()
     if not args:
         args = [b'']
     for a in args:
         completions.update(n for n in names if n.startswith(a))
     ui.write(b'\n'.join(sorted(completions)))
     ui.write(b'\n')
 
 
 @command(
     b'debugnodemap',
     [
         (
             b'',
             b'dump-new',
             False,
             _(b'write a (new) persistent binary nodemap on stdin'),
         ),
         (b'', b'dump-disk', False, _(b'dump on-disk data on stdin')),
         (
             b'',
             b'check',
             False,
             _(b'check that the data on disk data are correct.'),
         ),
         (
             b'',
             b'metadata',
             False,
             _(b'display the on disk meta data for the nodemap'),
         ),
     ],
 )
 def debugnodemap(ui, repo, **opts):
     """write and inspect on disk nodemap
     """
     if opts['dump_new']:
         unfi = repo.unfiltered()
         cl = unfi.changelog
         data = nodemap.persistent_data(cl.index)
         ui.write(data)
     elif opts['dump_disk']:
         unfi = repo.unfiltered()
         cl = unfi.changelog
         nm_data = nodemap.persisted_data(cl)
         if nm_data is not None:
             docket, data = nm_data
             ui.write(data)
     elif opts['check']:
         unfi = repo.unfiltered()
         cl = unfi.changelog
         nm_data = nodemap.persisted_data(cl)
         if nm_data is not None:
             docket, data = nm_data
             return nodemap.check_data(ui, cl.index, data)
     elif opts['metadata']:
         unfi = repo.unfiltered()
         cl = unfi.changelog
         nm_data = nodemap.persisted_data(cl)
         if nm_data is not None:
             docket, data = nm_data
             ui.write((b"uid: %s\n") % docket.uid)
             ui.write((b"tip-rev: %d\n") % docket.tip_rev)
             ui.write((b"data-length: %d\n") % docket.data_length)
             ui.write((b"data-unused: %d\n") % docket.data_unused)
 
 
 @command(
     b'debugobsolete',
     [
         (b'', b'flags', 0, _(b'markers flag')),
         (
             b'',
             b'record-parents',
             False,
             _(b'record parent information for the precursor'),
         ),
         (b'r', b'rev', [], _(b'display markers relevant to REV')),
         (
             b'',
             b'exclusive',
             False,
             _(b'restrict display to markers only relevant to REV'),
         ),
         (b'', b'index', False, _(b'display index of the marker')),
         (b'', b'delete', [], _(b'delete markers specified by indices')),
     ]
     + cmdutil.commitopts2
     + cmdutil.formatteropts,
     _(b'[OBSOLETED [REPLACEMENT ...]]'),
 )
 def debugobsolete(ui, repo, precursor=None, *successors, **opts):
     """create arbitrary obsolete marker
 
     With no arguments, displays the list of obsolescence markers."""
 
     opts = pycompat.byteskwargs(opts)
 
     def parsenodeid(s):
         try:
             # We do not use revsingle/revrange functions here to accept
             # arbitrary node identifiers, possibly not present in the
             # local repository.
             n = bin(s)
             if len(n) != len(nullid):
                 raise TypeError()
             return n
         except TypeError:
             raise error.Abort(
                 b'changeset references must be full hexadecimal '
                 b'node identifiers'
             )
 
     if opts.get(b'delete'):
         indices = []
         for v in opts.get(b'delete'):
             try:
                 indices.append(int(v))
             except ValueError:
                 raise error.Abort(
                     _(b'invalid index value: %r') % v,
                     hint=_(b'use integers for indices'),
                 )
 
         if repo.currenttransaction():
             raise error.Abort(
                 _(b'cannot delete obsmarkers in the middle of transaction.')
             )
 
         with repo.lock():
             n = repair.deleteobsmarkers(repo.obsstore, indices)
             ui.write(_(b'deleted %i obsolescence markers\n') % n)
 
         return
 
     if precursor is not None:
         if opts[b'rev']:
             raise error.Abort(b'cannot select revision when creating marker')
         metadata = {}
         metadata[b'user'] = encoding.fromlocal(opts[b'user'] or ui.username())
         succs = tuple(parsenodeid(succ) for succ in successors)
         l = repo.lock()
         try:
             tr = repo.transaction(b'debugobsolete')
             try:
                 date = opts.get(b'date')
                 if date:
                     date = dateutil.parsedate(date)
                 else:
                     date = None
                 prec = parsenodeid(precursor)
                 parents = None
                 if opts[b'record_parents']:
                     if prec not in repo.unfiltered():
                         raise error.Abort(
                             b'cannot used --record-parents on '
                             b'unknown changesets'
                         )
                     parents = repo.unfiltered()[prec].parents()
                     parents = tuple(p.node() for p in parents)
                 repo.obsstore.create(
                     tr,
                     prec,
                     succs,
                     opts[b'flags'],
                     parents=parents,
                     date=date,
                     metadata=metadata,
                     ui=ui,
                 )
                 tr.close()
             except ValueError as exc:
                 raise error.Abort(
                     _(b'bad obsmarker input: %s') % pycompat.bytestr(exc)
                 )
             finally:
                 tr.release()
         finally:
             l.release()
     else:
         if opts[b'rev']:
             revs = scmutil.revrange(repo, opts[b'rev'])
             nodes = [repo[r].node() for r in revs]
             markers = list(
                 obsutil.getmarkers(
                     repo, nodes=nodes, exclusive=opts[b'exclusive']
                 )
             )
             markers.sort(key=lambda x: x._data)
         else:
             markers = obsutil.getmarkers(repo)
 
         markerstoiter = markers
         isrelevant = lambda m: True
         if opts.get(b'rev') and opts.get(b'index'):
             markerstoiter = obsutil.getmarkers(repo)
             markerset = set(markers)
             isrelevant = lambda m: m in markerset
 
         fm = ui.formatter(b'debugobsolete', opts)
         for i, m in enumerate(markerstoiter):
             if not isrelevant(m):
                 # marker can be irrelevant when we're iterating over a set
                 # of markers (markerstoiter) which is bigger than the set
                 # of markers we want to display (markers)
                 # this can happen if both --index and --rev options are
                 # provided and thus we need to iterate over all of the markers
                 # to get the correct indices, but only display the ones that
                 # are relevant to --rev value
                 continue
             fm.startitem()
             ind = i if opts.get(b'index') else None
             cmdutil.showmarker(fm, m, index=ind)
         fm.end()
 
 
 @command(
     b'debugp1copies',
     [(b'r', b'rev', b'', _(b'revision to debug'), _(b'REV'))],
     _(b'[-r REV]'),
 )
 def debugp1copies(ui, repo, **opts):
     """dump copy information compared to p1"""
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get(b'rev'), default=None)
     for dst, src in ctx.p1copies().items():
         ui.write(b'%s -> %s\n' % (src, dst))
 
 
 @command(
     b'debugp2copies',
     [(b'r', b'rev', b'', _(b'revision to debug'), _(b'REV'))],
     _(b'[-r REV]'),
 )
 def debugp1copies(ui, repo, **opts):
     """dump copy information compared to p2"""
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get(b'rev'), default=None)
     for dst, src in ctx.p2copies().items():
         ui.write(b'%s -> %s\n' % (src, dst))
 
 
 @command(
     b'debugpathcomplete',
     [
         (b'f', b'full', None, _(b'complete an entire path')),
         (b'n', b'normal', None, _(b'show only normal files')),
         (b'a', b'added', None, _(b'show only added files')),
         (b'r', b'removed', None, _(b'show only removed files')),
     ],
     _(b'FILESPEC...'),
 )
 def debugpathcomplete(ui, repo, *specs, **opts):
     '''complete part or all of a tracked path
 
     This command supports shells that offer path name completion. It
     currently completes only files already known to the dirstate.
 
     Completion extends only to the next path segment unless
     --full is specified, in which case entire paths are used.'''
 
     def complete(path, acceptable):
         dirstate = repo.dirstate
         spec = os.path.normpath(os.path.join(encoding.getcwd(), path))
         rootdir = repo.root + pycompat.ossep
         if spec != repo.root and not spec.startswith(rootdir):
             return [], []
         if os.path.isdir(spec):
             spec += b'/'
         spec = spec[len(rootdir) :]
         fixpaths = pycompat.ossep != b'/'
         if fixpaths:
             spec = spec.replace(pycompat.ossep, b'/')
         speclen = len(spec)
         fullpaths = opts['full']
         files, dirs = set(), set()
         adddir, addfile = dirs.add, files.add
         for f, st in pycompat.iteritems(dirstate):
             if f.startswith(spec) and st[0] in acceptable:
                 if fixpaths:
                     f = f.replace(b'/', pycompat.ossep)
                 if fullpaths:
                     addfile(f)
                     continue
                 s = f.find(pycompat.ossep, speclen)
                 if s >= 0:
                     adddir(f[:s])
                 else:
                     addfile(f)
         return files, dirs
 
     acceptable = b''
     if opts['normal']:
         acceptable += b'nm'
     if opts['added']:
         acceptable += b'a'
     if opts['removed']:
         acceptable += b'r'
     cwd = repo.getcwd()
     if not specs:
         specs = [b'.']
 
     files, dirs = set(), set()
     for spec in specs:
         f, d = complete(spec, acceptable or b'nmar')
         files.update(f)
         dirs.update(d)
     files.update(dirs)
     ui.write(b'\n'.join(repo.pathto(p, cwd) for p in sorted(files)))
     ui.write(b'\n')
 
 
 @command(
     b'debugpathcopies',
     cmdutil.walkopts,
     b'hg debugpathcopies REV1 REV2 [FILE]',
     inferrepo=True,
 )
 def debugpathcopies(ui, repo, rev1, rev2, *pats, **opts):
     """show copies between two revisions"""
     ctx1 = scmutil.revsingle(repo, rev1)
     ctx2 = scmutil.revsingle(repo, rev2)
     m = scmutil.match(ctx1, pats, opts)
     for dst, src in sorted(copies.pathcopies(ctx1, ctx2, m).items()):
         ui.write(b'%s -> %s\n' % (src, dst))
 
 
 @command(b'debugpeer', [], _(b'PATH'), norepo=True)
 def debugpeer(ui, path):
     """establish a connection to a peer repository"""
     # Always enable peer request logging. Requires --debug to display
     # though.
     overrides = {
         (b'devel', b'debug.peer-request'): True,
     }
 
     with ui.configoverride(overrides):
         peer = hg.peer(ui, {}, path)
 
         local = peer.local() is not None
         canpush = peer.canpush()
 
         ui.write(_(b'url: %s\n') % peer.url())
         ui.write(_(b'local: %s\n') % (_(b'yes') if local else _(b'no')))
         ui.write(_(b'pushable: %s\n') % (_(b'yes') if canpush else _(b'no')))
 
 
 @command(
     b'debugpickmergetool',
     [
         (b'r', b'rev', b'', _(b'check for files in this revision'), _(b'REV')),
         (b'', b'changedelete', None, _(b'emulate merging change and delete')),
     ]
     + cmdutil.walkopts
     + cmdutil.mergetoolopts,
     _(b'[PATTERN]...'),
     inferrepo=True,
 )
 def debugpickmergetool(ui, repo, *pats, **opts):
     """examine which merge tool is chosen for specified file
 
     As described in :hg:`help merge-tools`, Mercurial examines
     configurations below in this order to decide which merge tool is
     chosen for specified file.
 
     1. ``--tool`` option
     2. ``HGMERGE`` environment variable
     3. configurations in ``merge-patterns`` section
     4. configuration of ``ui.merge``
     5. configurations in ``merge-tools`` section
     6. ``hgmerge`` tool (for historical reason only)
     7. default tool for fallback (``:merge`` or ``:prompt``)
 
     This command writes out examination result in the style below::
 
         FILE = MERGETOOL
 
     By default, all files known in the first parent context of the
     working directory are examined. Use file patterns and/or -I/-X
     options to limit target files. -r/--rev is also useful to examine
     files in another context without actual updating to it.
 
     With --debug, this command shows warning messages while matching
     against ``merge-patterns`` and so on, too. It is recommended to
     use this option with explicit file patterns and/or -I/-X options,
     because this option increases amount of output per file according
     to configurations in hgrc.
 
     With -v/--verbose, this command shows configurations below at
     first (only if specified).
 
     - ``--tool`` option
     - ``HGMERGE`` environment variable
     - configuration of ``ui.merge``
 
     If merge tool is chosen before matching against
     ``merge-patterns``, this command can't show any helpful
     information, even with --debug. In such case, information above is
     useful to know why a merge tool is chosen.
     """
     opts = pycompat.byteskwargs(opts)
     overrides = {}
     if opts[b'tool']:
         overrides[(b'ui', b'forcemerge')] = opts[b'tool']
         ui.notenoi18n(b'with --tool %r\n' % (pycompat.bytestr(opts[b'tool'])))
 
     with ui.configoverride(overrides, b'debugmergepatterns'):
         hgmerge = encoding.environ.get(b"HGMERGE")
         if hgmerge is not None:
             ui.notenoi18n(b'with HGMERGE=%r\n' % (pycompat.bytestr(hgmerge)))
         uimerge = ui.config(b"ui", b"merge")
         if uimerge:
             ui.notenoi18n(b'with ui.merge=%r\n' % (pycompat.bytestr(uimerge)))
 
         ctx = scmutil.revsingle(repo, opts.get(b'rev'))
         m = scmutil.match(ctx, pats, opts)
         changedelete = opts[b'changedelete']
         for path in ctx.walk(m):
             fctx = ctx[path]
             try:
                 if not ui.debugflag:
                     ui.pushbuffer(error=True)
                 tool, toolpath = filemerge._picktool(
                     repo,
                     ui,
                     path,
                     fctx.isbinary(),
                     b'l' in fctx.flags(),
                     changedelete,
                 )
             finally:
                 if not ui.debugflag:
                     ui.popbuffer()
             ui.write(b'%s = %s\n' % (path, tool))
 
 
 @command(b'debugpushkey', [], _(b'REPO NAMESPACE [KEY OLD NEW]'), norepo=True)
 def debugpushkey(ui, repopath, namespace, *keyinfo, **opts):
     '''access the pushkey key/value protocol
 
     With two args, list the keys in the given namespace.
 
     With five args, set a key to new if it currently is set to old.
     Reports success or failure.
     '''
 
     target = hg.peer(ui, {}, repopath)
     if keyinfo:
         key, old, new = keyinfo
         with target.commandexecutor() as e:
             r = e.callcommand(
                 b'pushkey',
                 {
                     b'namespace': namespace,
                     b'key': key,
                     b'old': old,
                     b'new': new,
                 },
             ).result()
 
         ui.status(pycompat.bytestr(r) + b'\n')
         return not r
     else:
         for k, v in sorted(pycompat.iteritems(target.listkeys(namespace))):
             ui.write(
                 b"%s\t%s\n" % (stringutil.escapestr(k), stringutil.escapestr(v))
             )
 
 
 @command(b'debugpvec', [], _(b'A B'))
 def debugpvec(ui, repo, a, b=None):
     ca = scmutil.revsingle(repo, a)
     cb = scmutil.revsingle(repo, b)
     pa = pvec.ctxpvec(ca)
     pb = pvec.ctxpvec(cb)
     if pa == pb:
         rel = b"="
     elif pa > pb:
         rel = b">"
     elif pa < pb:
         rel = b"<"
     elif pa | pb:
         rel = b"|"
     ui.write(_(b"a: %s\n") % pa)
     ui.write(_(b"b: %s\n") % pb)
     ui.write(_(b"depth(a): %d depth(b): %d\n") % (pa._depth, pb._depth))
     ui.write(
         _(b"delta: %d hdist: %d distance: %d relation: %s\n")
         % (
             abs(pa._depth - pb._depth),
             pvec._hamming(pa._vec, pb._vec),
             pa.distance(pb),
             rel,
         )
     )
 
 
 @command(
     b'debugrebuilddirstate|debugrebuildstate',
     [
         (b'r', b'rev', b'', _(b'revision to rebuild to'), _(b'REV')),
         (
             b'',
             b'minimal',
             None,
             _(
                 b'only rebuild files that are inconsistent with '
                 b'the working copy parent'
             ),
         ),
     ],
     _(b'[-r REV]'),
 )
 def debugrebuilddirstate(ui, repo, rev, **opts):
     """rebuild the dirstate as it would look like for the given revision
 
     If no revision is specified the first current parent will be used.
 
     The dirstate will be set to the files of the given revision.
     The actual working directory content or existing dirstate
     information such as adds or removes is not considered.
 
     ``minimal`` will only rebuild the dirstate status for files that claim to be
     tracked but are not in the parent manifest, or that exist in the parent
     manifest but are not in the dirstate. It will not change adds, removes, or
     modified files that are in the working copy parent.
 
     One use of this command is to make the next :hg:`status` invocation
     check the actual file content.
     """
     ctx = scmutil.revsingle(repo, rev)
     with repo.wlock():
         dirstate = repo.dirstate
         changedfiles = None
         # See command doc for what minimal does.
         if opts.get('minimal'):
             manifestfiles = set(ctx.manifest().keys())
             dirstatefiles = set(dirstate)
             manifestonly = manifestfiles - dirstatefiles
             dsonly = dirstatefiles - manifestfiles
             dsnotadded = set(f for f in dsonly if dirstate[f] != b'a')
             changedfiles = manifestonly | dsnotadded
 
         dirstate.rebuild(ctx.node(), ctx.manifest(), changedfiles)
 
 
 @command(b'debugrebuildfncache', [], b'')
 def debugrebuildfncache(ui, repo):
     """rebuild the fncache file"""
     repair.rebuildfncache(ui, repo)
 
 
 @command(
     b'debugrename',
     [(b'r', b'rev', b'', _(b'revision to debug'), _(b'REV'))],
     _(b'[-r REV] [FILE]...'),
 )
 def debugrename(ui, repo, *pats, **opts):
     """dump rename information"""
 
     opts = pycompat.byteskwargs(opts)
     ctx = scmutil.revsingle(repo, opts.get(b'rev'))
     m = scmutil.match(ctx, pats, opts)
     for abs in ctx.walk(m):
         fctx = ctx[abs]
         o = fctx.filelog().renamed(fctx.filenode())
         rel = repo.pathto(abs)
         if o:
             ui.write(_(b"%s renamed from %s:%s\n") % (rel, o[0], hex(o[1])))
         else:
             ui.write(_(b"%s not renamed\n") % rel)
 
 
 @command(
     b'debugrevlog',
     cmdutil.debugrevlogopts + [(b'd', b'dump', False, _(b'dump index data'))],
     _(b'-c|-m|FILE'),
     optionalrepo=True,
 )
 def debugrevlog(ui, repo, file_=None, **opts):
     """show data and statistics about a revlog"""
     opts = pycompat.byteskwargs(opts)
     r = cmdutil.openrevlog(repo, b'debugrevlog', file_, opts)
 
     if opts.get(b"dump"):
         numrevs = len(r)
         ui.write(
             (
                 b"# rev p1rev p2rev start   end deltastart base   p1   p2"
                 b" rawsize totalsize compression heads chainlen\n"
             )
         )
         ts = 0
         heads = set()
 
         for rev in pycompat.xrange(numrevs):
             dbase = r.deltaparent(rev)
             if dbase == -1:
                 dbase = rev
             cbase = r.chainbase(rev)
             clen = r.chainlen(rev)
             p1, p2 = r.parentrevs(rev)
             rs = r.rawsize(rev)
             ts = ts + rs
             heads -= set(r.parentrevs(rev))
             heads.add(rev)
             try:
                 compression = ts / r.end(rev)
             except ZeroDivisionError:
                 compression = 0
             ui.write(
                 b"%5d %5d %5d %5d %5d %10d %4d %4d %4d %7d %9d "
                 b"%11d %5d %8d\n"
                 % (
                     rev,
                     p1,
                     p2,
                     r.start(rev),
                     r.end(rev),
                     r.start(dbase),
                     r.start(cbase),
                     r.start(p1),
                     r.start(p2),
                     rs,
                     ts,
                     compression,
                     len(heads),
                     clen,
                 )
             )
         return 0
 
     v = r.version
     format = v & 0xFFFF
     flags = []
     gdelta = False
     if v & revlog.FLAG_INLINE_DATA:
         flags.append(b'inline')
     if v & revlog.FLAG_GENERALDELTA:
         gdelta = True
         flags.append(b'generaldelta')
     if not flags:
         flags = [b'(none)']
 
     ### tracks merge vs single parent
     nummerges = 0
 
     ### tracks ways the "delta" are build
     # nodelta
     numempty = 0
     numemptytext = 0
     numemptydelta = 0
     # full file content
     numfull = 0
     # intermediate snapshot against a prior snapshot
     numsemi = 0
     # snapshot count per depth
     numsnapdepth = collections.defaultdict(lambda: 0)
     # delta against previous revision
     numprev = 0
     # delta against first or second parent (not prev)
     nump1 = 0
     nump2 = 0
     # delta against neither prev nor parents
     numother = 0
     # delta against prev that are also first or second parent
     # (details of `numprev`)
     nump1prev = 0
     nump2prev = 0
 
     # data about delta chain of each revs
     chainlengths = []
     chainbases = []
     chainspans = []
 
     # data about each revision
     datasize = [None, 0, 0]
     fullsize = [None, 0, 0]
     semisize = [None, 0, 0]
     # snapshot count per depth
     snapsizedepth = collections.defaultdict(lambda: [None, 0, 0])
     deltasize = [None, 0, 0]
     chunktypecounts = {}
     chunktypesizes = {}
 
     def addsize(size, l):
         if l[0] is None or size < l[0]:
             l[0] = size
         if size > l[1]:
             l[1] = size
         l[2] += size
 
     numrevs = len(r)
     for rev in pycompat.xrange(numrevs):
         p1, p2 = r.parentrevs(rev)
         delta = r.deltaparent(rev)
         if format > 0:
             addsize(r.rawsize(rev), datasize)
         if p2 != nullrev:
             nummerges += 1
         size = r.length(rev)
         if delta == nullrev:
             chainlengths.append(0)
             chainbases.append(r.start(rev))
             chainspans.append(size)
             if size == 0:
                 numempty += 1
                 numemptytext += 1
             else:
                 numfull += 1
                 numsnapdepth[0] += 1
                 addsize(size, fullsize)
                 addsize(size, snapsizedepth[0])
         else:
             chainlengths.append(chainlengths[delta] + 1)
             baseaddr = chainbases[delta]
             revaddr = r.start(rev)
             chainbases.append(baseaddr)
             chainspans.append((revaddr - baseaddr) + size)
             if size == 0:
                 numempty += 1
                 numemptydelta += 1
             elif r.issnapshot(rev):
                 addsize(size, semisize)
                 numsemi += 1
                 depth = r.snapshotdepth(rev)
                 numsnapdepth[depth] += 1
                 addsize(size, snapsizedepth[depth])
             else:
                 addsize(size, deltasize)
                 if delta == rev - 1:
                     numprev += 1
                     if delta == p1:
                         nump1prev += 1
                     elif delta == p2:
                         nump2prev += 1
                 elif delta == p1:
                     nump1 += 1
                 elif delta == p2:
                     nump2 += 1
                 elif delta != nullrev:
                     numother += 1
 
         # Obtain data on the raw chunks in the revlog.
         if util.safehasattr(r, b'_getsegmentforrevs'):
             segment = r._getsegmentforrevs(rev, rev)[1]
         else:
             segment = r._revlog._getsegmentforrevs(rev, rev)[1]
         if segment:
             chunktype = bytes(segment[0:1])
         else:
             chunktype = b'empty'
 
         if chunktype not in chunktypecounts:
             chunktypecounts[chunktype] = 0
             chunktypesizes[chunktype] = 0
 
         chunktypecounts[chunktype] += 1
         chunktypesizes[chunktype] += size
 
     # Adjust size min value for empty cases
     for size in (datasize, fullsize, semisize, deltasize):
         if size[0] is None:
             size[0] = 0
 
     numdeltas = numrevs - numfull - numempty - numsemi
     numoprev = numprev - nump1prev - nump2prev
     totalrawsize = datasize[2]
     datasize[2] /= numrevs
     fulltotal = fullsize[2]
     if numfull == 0:
         fullsize[2] = 0
     else:
         fullsize[2] /= numfull
     semitotal = semisize[2]
     snaptotal = {}
     if numsemi > 0:
         semisize[2] /= numsemi
     for depth in snapsizedepth:
         snaptotal[depth] = snapsizedepth[depth][2]
         snapsizedepth[depth][2] /= numsnapdepth[depth]
 
     deltatotal = deltasize[2]
     if numdeltas > 0:
         deltasize[2] /= numdeltas
     totalsize = fulltotal + semitotal + deltatotal
     avgchainlen = sum(chainlengths) / numrevs
     maxchainlen = max(chainlengths)
     maxchainspan = max(chainspans)
     compratio = 1
     if totalsize:
         compratio = totalrawsize / totalsize
 
     basedfmtstr = b'%%%dd\n'
     basepcfmtstr = b'%%%dd %s(%%5.2f%%%%)\n'
 
     def dfmtstr(max):
         return basedfmtstr % len(str(max))
 
     def pcfmtstr(max, padding=0):
         return basepcfmtstr % (len(str(max)), b' ' * padding)
 
     def pcfmt(value, total):
         if total:
             return (value, 100 * float(value) / total)
         else:
             return value, 100.0
 
     ui.writenoi18n(b'format : %d\n' % format)
     ui.writenoi18n(b'flags  : %s\n' % b', '.join(flags))
 
     ui.write(b'\n')
     fmt = pcfmtstr(totalsize)
     fmt2 = dfmtstr(totalsize)
     ui.writenoi18n(b'revisions     : ' + fmt2 % numrevs)
     ui.writenoi18n(b'    merges    : ' + fmt % pcfmt(nummerges, numrevs))
     ui.writenoi18n(
         b'    normal    : ' + fmt % pcfmt(numrevs - nummerges, numrevs)
     )
     ui.writenoi18n(b'revisions     : ' + fmt2 % numrevs)
     ui.writenoi18n(b'    empty     : ' + fmt % pcfmt(numempty, numrevs))
     ui.writenoi18n(
         b'                   text  : '
         + fmt % pcfmt(numemptytext, numemptytext + numemptydelta)
     )
     ui.writenoi18n(
         b'                   delta : '
         + fmt % pcfmt(numemptydelta, numemptytext + numemptydelta)
     )
     ui.writenoi18n(
         b'    snapshot  : ' + fmt % pcfmt(numfull + numsemi, numrevs)
     )
     for depth in sorted(numsnapdepth):
         ui.write(
             (b'      lvl-%-3d :       ' % depth)
             + fmt % pcfmt(numsnapdepth[depth], numrevs)
         )
     ui.writenoi18n(b'    deltas    : ' + fmt % pcfmt(numdeltas, numrevs))
     ui.writenoi18n(b'revision size : ' + fmt2 % totalsize)
     ui.writenoi18n(
         b'    snapshot  : ' + fmt % pcfmt(fulltotal + semitotal, totalsize)
     )
     for depth in sorted(numsnapdepth):
         ui.write(
             (b'      lvl-%-3d :       ' % depth)
             + fmt % pcfmt(snaptotal[depth], totalsize)
         )
     ui.writenoi18n(b'    deltas    : ' + fmt % pcfmt(deltatotal, totalsize))
 
     def fmtchunktype(chunktype):
         if chunktype == b'empty':
             return b'    %s     : ' % chunktype
         elif chunktype in pycompat.bytestr(string.ascii_letters):
             return b'    0x%s (%s)  : ' % (hex(chunktype), chunktype)
         else:
             return b'    0x%s      : ' % hex(chunktype)
 
     ui.write(b'\n')
     ui.writenoi18n(b'chunks        : ' + fmt2 % numrevs)
     for chunktype in sorted(chunktypecounts):
         ui.write(fmtchunktype(chunktype))
         ui.write(fmt % pcfmt(chunktypecounts[chunktype], numrevs))
     ui.writenoi18n(b'chunks size   : ' + fmt2 % totalsize)
     for chunktype in sorted(chunktypecounts):
         ui.write(fmtchunktype(chunktype))
         ui.write(fmt % pcfmt(chunktypesizes[chunktype], totalsize))
 
     ui.write(b'\n')
     fmt = dfmtstr(max(avgchainlen, maxchainlen, maxchainspan, compratio))
     ui.writenoi18n(b'avg chain length  : ' + fmt % avgchainlen)
     ui.writenoi18n(b'max chain length  : ' + fmt % maxchainlen)
     ui.writenoi18n(b'max chain reach   : ' + fmt % maxchainspan)
     ui.writenoi18n(b'compression ratio : ' + fmt % compratio)
 
     if format > 0:
         ui.write(b'\n')
         ui.writenoi18n(
             b'uncompressed data size (min/max/avg) : %d / %d / %d\n'
             % tuple(datasize)
         )
     ui.writenoi18n(
         b'full revision size (min/max/avg)     : %d / %d / %d\n'
         % tuple(fullsize)
     )
     ui.writenoi18n(
         b'inter-snapshot size (min/max/avg)    : %d / %d / %d\n'
         % tuple(semisize)
     )
     for depth in sorted(snapsizedepth):
         if depth == 0:
             continue
         ui.writenoi18n(
             b'    level-%-3d (min/max/avg)          : %d / %d / %d\n'
             % ((depth,) + tuple(snapsizedepth[depth]))
         )
     ui.writenoi18n(
         b'delta size (min/max/avg)             : %d / %d / %d\n'
         % tuple(deltasize)
     )
 
     if numdeltas > 0:
         ui.write(b'\n')
         fmt = pcfmtstr(numdeltas)
         fmt2 = pcfmtstr(numdeltas, 4)
         ui.writenoi18n(
             b'deltas against prev  : ' + fmt % pcfmt(numprev, numdeltas)
         )
         if numprev > 0:
             ui.writenoi18n(
                 b'    where prev = p1  : ' + fmt2 % pcfmt(nump1prev, numprev)
             )
             ui.writenoi18n(
                 b'    where prev = p2  : ' + fmt2 % pcfmt(nump2prev, numprev)
             )
             ui.writenoi18n(
                 b'    other            : ' + fmt2 % pcfmt(numoprev, numprev)
             )
         if gdelta:
             ui.writenoi18n(
                 b'deltas against p1    : ' + fmt % pcfmt(nump1, numdeltas)
             )
             ui.writenoi18n(
                 b'deltas against p2    : ' + fmt % pcfmt(nump2, numdeltas)
             )
             ui.writenoi18n(
                 b'deltas against other : ' + fmt % pcfmt(numother, numdeltas)
             )
 
 
 @command(
     b'debugrevlogindex',
     cmdutil.debugrevlogopts
     + [(b'f', b'format', 0, _(b'revlog format'), _(b'FORMAT'))],
     _(b'[-f FORMAT] -c|-m|FILE'),
     optionalrepo=True,
 )
 def debugrevlogindex(ui, repo, file_=None, **opts):
     """dump the contents of a revlog index"""
     opts = pycompat.byteskwargs(opts)
     r = cmdutil.openrevlog(repo, b'debugrevlogindex', file_, opts)
     format = opts.get(b'format', 0)
     if format not in (0, 1):
         raise error.Abort(_(b"unknown format %d") % format)
 
     if ui.debugflag:
         shortfn = hex
     else:
         shortfn = short
 
     # There might not be anything in r, so have a sane default
     idlen = 12
     for i in r:
         idlen = len(shortfn(r.node(i)))
         break
 
     if format == 0:
         if ui.verbose:
             ui.writenoi18n(
                 b"   rev    offset  length linkrev %s %s p2\n"
                 % (b"nodeid".ljust(idlen), b"p1".ljust(idlen))
             )
         else:
             ui.writenoi18n(
                 b"   rev linkrev %s %s p2\n"
                 % (b"nodeid".ljust(idlen), b"p1".ljust(idlen))
             )
     elif format == 1:
         if ui.verbose:
             ui.writenoi18n(
                 (
                     b"   rev flag   offset   length     size   link     p1"
                     b"     p2 %s\n"
                 )
                 % b"nodeid".rjust(idlen)
             )
         else:
             ui.writenoi18n(
                 b"   rev flag     size   link     p1     p2 %s\n"
                 % b"nodeid".rjust(idlen)
             )
 
     for i in r:
         node = r.node(i)
         if format == 0:
             try:
                 pp = r.parents(node)
             except Exception:
                 pp = [nullid, nullid]
             if ui.verbose:
                 ui.write(
                     b"% 6d % 9d % 7d % 7d %s %s %s\n"
                     % (
                         i,
                         r.start(i),
                         r.length(i),
                         r.linkrev(i),
                         shortfn(node),
                         shortfn(pp[0]),
                         shortfn(pp[1]),
                     )
                 )
             else:
                 ui.write(
                     b"% 6d % 7d %s %s %s\n"
                     % (
                         i,
                         r.linkrev(i),
                         shortfn(node),
                         shortfn(pp[0]),
                         shortfn(pp[1]),
                     )
                 )
         elif format == 1:
             pr = r.parentrevs(i)
             if ui.verbose:
                 ui.write(
                     b"% 6d %04x % 8d % 8d % 8d % 6d % 6d % 6d %s\n"
                     % (
                         i,
                         r.flags(i),
                         r.start(i),
                         r.length(i),
                         r.rawsize(i),
                         r.linkrev(i),
                         pr[0],
                         pr[1],
                         shortfn(node),
                     )
                 )
             else:
                 ui.write(
                     b"% 6d %04x % 8d % 6d % 6d % 6d %s\n"
                     % (
                         i,
                         r.flags(i),
                         r.rawsize(i),
                         r.linkrev(i),
                         pr[0],
                         pr[1],
                         shortfn(node),
                     )
                 )
 
 
 @command(
     b'debugrevspec',
     [
         (
             b'',
             b'optimize',
             None,
             _(b'print parsed tree after optimizing (DEPRECATED)'),
         ),
         (
             b'',
             b'show-revs',
             True,
             _(b'print list of result revisions (default)'),
         ),
         (
             b's',
             b'show-set',
             None,
             _(b'print internal representation of result set'),
         ),
         (
             b'p',
             b'show-stage',
             [],
             _(b'print parsed tree at the given stage'),
             _(b'NAME'),
         ),
         (b'', b'no-optimized', False, _(b'evaluate tree without optimization')),
         (b'', b'verify-optimized', False, _(b'verify optimized result')),
     ],
     b'REVSPEC',
 )
 def debugrevspec(ui, repo, expr, **opts):
     """parse and apply a revision specification
 
     Use -p/--show-stage option to print the parsed tree at the given stages.
     Use -p all to print tree at every stage.
 
     Use --no-show-revs option with -s or -p to print only the set
     representation or the parsed tree respectively.
 
     Use --verify-optimized to compare the optimized result with the unoptimized
     one. Returns 1 if the optimized result differs.
     """
     opts = pycompat.byteskwargs(opts)
     aliases = ui.configitems(b'revsetalias')
     stages = [
         (b'parsed', lambda tree: tree),
         (
             b'expanded',
             lambda tree: revsetlang.expandaliases(tree, aliases, ui.warn),
         ),
         (b'concatenated', revsetlang.foldconcat),
         (b'analyzed', revsetlang.analyze),
         (b'optimized', revsetlang.optimize),
     ]
     if opts[b'no_optimized']:
         stages = stages[:-1]
     if opts[b'verify_optimized'] and opts[b'no_optimized']:
         raise error.Abort(
             _(b'cannot use --verify-optimized with --no-optimized')
         )
     stagenames = set(n for n, f in stages)
 
     showalways = set()
     showchanged = set()
     if ui.verbose and not opts[b'show_stage']:
         # show parsed tree by --verbose (deprecated)
         showalways.add(b'parsed')
         showchanged.update([b'expanded', b'concatenated'])
         if opts[b'optimize']:
             showalways.add(b'optimized')
     if opts[b'show_stage'] and opts[b'optimize']:
         raise error.Abort(_(b'cannot use --optimize with --show-stage'))
     if opts[b'show_stage'] == [b'all']:
         showalways.update(stagenames)
     else:
         for n in opts[b'show_stage']:
             if n not in stagenames:
                 raise error.Abort(_(b'invalid stage name: %s') % n)
         showalways.update(opts[b'show_stage'])
 
     treebystage = {}
     printedtree = None
     tree = revsetlang.parse(expr, lookup=revset.lookupfn(repo))
     for n, f in stages:
         treebystage[n] = tree = f(tree)
         if n in showalways or (n in showchanged and tree != printedtree):
             if opts[b'show_stage'] or n != b'parsed':
                 ui.write(b"* %s:\n" % n)
             ui.write(revsetlang.prettyformat(tree), b"\n")
             printedtree = tree
 
     if opts[b'verify_optimized']:
         arevs = revset.makematcher(treebystage[b'analyzed'])(repo)
         brevs = revset.makematcher(treebystage[b'optimized'])(repo)
         if opts[b'show_set'] or (opts[b'show_set'] is None and ui.verbose):
             ui.writenoi18n(
                 b"* analyzed set:\n", stringutil.prettyrepr(arevs), b"\n"
             )
             ui.writenoi18n(
                 b"* optimized set:\n", stringutil.prettyrepr(brevs), b"\n"
             )
         arevs = list(arevs)
         brevs = list(brevs)
         if arevs == brevs:
             return 0
         ui.writenoi18n(b'--- analyzed\n', label=b'diff.file_a')
         ui.writenoi18n(b'+++ optimized\n', label=b'diff.file_b')
         sm = difflib.SequenceMatcher(None, arevs, brevs)
         for tag, alo, ahi, blo, bhi in sm.get_opcodes():
             if tag in ('delete', 'replace'):
                 for c in arevs[alo:ahi]:
                     ui.write(b'-%d\n' % c, label=b'diff.deleted')
             if tag in ('insert', 'replace'):
                 for c in brevs[blo:bhi]:
                     ui.write(b'+%d\n' % c, label=b'diff.inserted')
             if tag == 'equal':
                 for c in arevs[alo:ahi]:
                     ui.write(b' %d\n' % c)
         return 1
 
     func = revset.makematcher(tree)
     revs = func(repo)
     if opts[b'show_set'] or (opts[b'show_set'] is None and ui.verbose):
         ui.writenoi18n(b"* set:\n", stringutil.prettyrepr(revs), b"\n")
     if not opts[b'show_revs']:
         return
     for c in revs:
         ui.write(b"%d\n" % c)
 
 
 @command(
     b'debugserve',
     [
         (
             b'',
             b'sshstdio',
             False,
             _(b'run an SSH server bound to process handles'),
         ),
         (b'', b'logiofd', b'', _(b'file descriptor to log server I/O to')),
         (b'', b'logiofile', b'', _(b'file to log server I/O to')),
     ],
     b'',
 )
 def debugserve(ui, repo, **opts):
     """run a server with advanced settings
 
     This command is similar to :hg:`serve`. It exists partially as a
     workaround to the fact that ``hg serve --stdio`` must have specific
     arguments for security reasons.
     """
     opts = pycompat.byteskwargs(opts)
 
     if not opts[b'sshstdio']:
         raise error.Abort(_(b'only --sshstdio is currently supported'))
 
     logfh = None
 
     if opts[b'logiofd'] and opts[b'logiofile']:
         raise error.Abort(_(b'cannot use both --logiofd and --logiofile'))
 
     if opts[b'logiofd']:
         # Ideally we would be line buffered. But line buffering in binary
         # mode isn't supported and emits a warning in Python 3.8+. Disabling
         # buffering could have performance impacts. But since this isn't
         # performance critical code, it should be fine.
         try:
             logfh = os.fdopen(int(opts[b'logiofd']), 'ab', 0)
         except OSError as e:
             if e.errno != errno.ESPIPE:
                 raise
             # can't seek a pipe, so `ab` mode fails on py3
             logfh = os.fdopen(int(opts[b'logiofd']), 'wb', 0)
     elif opts[b'logiofile']:
         logfh = open(opts[b'logiofile'], b'ab', 0)
 
     s = wireprotoserver.sshserver(ui, repo, logfh=logfh)
     s.serve_forever()
 
 
 @command(b'debugsetparents', [], _(b'REV1 [REV2]'))
 def debugsetparents(ui, repo, rev1, rev2=None):
     """manually set the parents of the current working directory
 
     This is useful for writing repository conversion tools, but should
     be used with care. For example, neither the working directory nor the
     dirstate is updated, so file status may be incorrect after running this
     command.
 
     Returns 0 on success.
     """
 
     node1 = scmutil.revsingle(repo, rev1).node()
     node2 = scmutil.revsingle(repo, rev2, b'null').node()
 
     with repo.wlock():
         repo.setparents(node1, node2)
 
 
 @command(b'debugsidedata', cmdutil.debugrevlogopts, _(b'-c|-m|FILE REV'))
 def debugsidedata(ui, repo, file_, rev=None, **opts):
     """dump the side data for a cl/manifest/file revision
 
     Use --verbose to dump the sidedata content."""
     opts = pycompat.byteskwargs(opts)
     if opts.get(b'changelog') or opts.get(b'manifest') or opts.get(b'dir'):
         if rev is not None:
             raise error.CommandError(b'debugdata', _(b'invalid arguments'))
         file_, rev = None, file_
     elif rev is None:
         raise error.CommandError(b'debugdata', _(b'invalid arguments'))
     r = cmdutil.openstorage(repo, b'debugdata', file_, opts)
     r = getattr(r, '_revlog', r)
     try:
         sidedata = r.sidedata(r.lookup(rev))
     except KeyError:
         raise error.Abort(_(b'invalid revision identifier %s') % rev)
     if sidedata:
         sidedata = list(sidedata.items())
         sidedata.sort()
         ui.writenoi18n(b'%d sidedata entries\n' % len(sidedata))
         for key, value in sidedata:
             ui.writenoi18n(b' entry-%04o size %d\n' % (key, len(value)))
             if ui.verbose:
                 ui.writenoi18n(b'  %s\n' % stringutil.pprint(value))
 
 
 @command(b'debugssl', [], b'[SOURCE]', optionalrepo=True)
 def debugssl(ui, repo, source=None, **opts):
     '''test a secure connection to a server
 
     This builds the certificate chain for the server on Windows, installing the
     missing intermediates and trusted root via Windows Update if necessary.  It
     does nothing on other platforms.
 
     If SOURCE is omitted, the 'default' path will be used.  If a URL is given,
     that server is used. See :hg:`help urls` for more information.
 
     If the update succeeds, retry the original operation.  Otherwise, the cause
     of the SSL error is likely another issue.
     '''
     if not pycompat.iswindows:
         raise error.Abort(
             _(b'certificate chain building is only possible on Windows')
         )
 
     if not source:
         if not repo:
             raise error.Abort(
                 _(
                     b"there is no Mercurial repository here, and no "
                     b"server specified"
                 )
             )
         source = b"default"
 
     source, branches = hg.parseurl(ui.expandpath(source))
     url = util.url(source)
 
     defaultport = {b'https': 443, b'ssh': 22}
     if url.scheme in defaultport:
         try:
             addr = (url.host, int(url.port or defaultport[url.scheme]))
         except ValueError:
             raise error.Abort(_(b"malformed port number in URL"))
     else:
         raise error.Abort(_(b"only https and ssh connections are supported"))
 
     from . import win32
 
     s = ssl.wrap_socket(
         socket.socket(),
         ssl_version=ssl.PROTOCOL_TLS,
         cert_reqs=ssl.CERT_NONE,
         ca_certs=None,
     )
 
     try:
         s.connect(addr)
         cert = s.getpeercert(True)
 
         ui.status(_(b'checking the certificate chain for %s\n') % url.host)
 
         complete = win32.checkcertificatechain(cert, build=False)
 
         if not complete:
             ui.status(_(b'certificate chain is incomplete, updating... '))
 
             if not win32.checkcertificatechain(cert):
                 ui.status(_(b'failed.\n'))
             else:
                 ui.status(_(b'done.\n'))
         else:
             ui.status(_(b'full certificate chain is available\n'))
     finally:
         s.close()
 
 
 @command(
     b'debugsub',
     [(b'r', b'rev', b'', _(b'revision to check'), _(b'REV'))],
     _(b'[-r REV] [REV]'),
 )
 def debugsub(ui, repo, rev=None):
     ctx = scmutil.revsingle(repo, rev, None)
     for k, v in sorted(ctx.substate.items()):
         ui.writenoi18n(b'path %s\n' % k)
         ui.writenoi18n(b' source   %s\n' % v[0])
         ui.writenoi18n(b' revision %s\n' % v[1])
 
 
 @command(
     b'debugsuccessorssets',
     [(b'', b'closest', False, _(b'return closest successors sets only'))],
     _(b'[REV]'),
 )
 def debugsuccessorssets(ui, repo, *revs, **opts):
     """show set of successors for revision
 
     A successors set of changeset A is a consistent group of revisions that
     succeed A. It contains non-obsolete changesets only unless closests
     successors set is set.
 
     In most cases a changeset A has a single successors set containing a single
     successor (changeset A replaced by A').
 
     A changeset that is made obsolete with no successors are called "pruned".
     Such changesets have no successors sets at all.
 
     A changeset that has been "split" will have a successors set containing
     more than one successor.
 
     A changeset that has been rewritten in multiple different ways is called
     "divergent". Such changesets have multiple successor sets (each of which
     may also be split, i.e. have multiple successors).
 
     Results are displayed as follows::
 
         <rev1>
             <successors-1A>
         <rev2>
             <successors-2A>
             <successors-2B1> <successors-2B2> <successors-2B3>
 
     Here rev2 has two possible (i.e. divergent) successors sets. The first
     holds one element, whereas the second holds three (i.e. the changeset has
     been split).
     """
     # passed to successorssets caching computation from one call to another
     cache = {}
     ctx2str = bytes
     node2str = short
     for rev in scmutil.revrange(repo, revs):
         ctx = repo[rev]
         ui.write(b'%s\n' % ctx2str(ctx))
         for succsset in obsutil.successorssets(
             repo, ctx.node(), closest=opts['closest'], cache=cache
         ):
             if succsset:
                 ui.write(b'    ')
                 ui.write(node2str(succsset[0]))
                 for node in succsset[1:]:
                     ui.write(b' ')
                     ui.write(node2str(node))
             ui.write(b'\n')
 
 
 @command(b'debugtagscache', [])
 def debugtagscache(ui, repo):
     """display the contents of .hg/cache/hgtagsfnodes1"""
     cache = tagsmod.hgtagsfnodescache(repo.unfiltered())
     for r in repo:
         node = repo[r].node()
         tagsnode = cache.getfnode(node, computemissing=False)
         tagsnodedisplay = hex(tagsnode) if tagsnode else b'missing/invalid'
         ui.write(b'%d %s %s\n' % (r, hex(node), tagsnodedisplay))
 
 
 @command(
     b'debugtemplate',
     [
         (b'r', b'rev', [], _(b'apply template on changesets'), _(b'REV')),
         (b'D', b'define', [], _(b'define template keyword'), _(b'KEY=VALUE')),
     ],
     _(b'[-r REV]... [-D KEY=VALUE]... TEMPLATE'),
     optionalrepo=True,
 )
 def debugtemplate(ui, repo, tmpl, **opts):
     """parse and apply a template
 
     If -r/--rev is given, the template is processed as a log template and
     applied to the given changesets. Otherwise, it is processed as a generic
     template.
 
     Use --verbose to print the parsed tree.
     """
     revs = None
     if opts['rev']:
         if repo is None:
             raise error.RepoError(
                 _(b'there is no Mercurial repository here (.hg not found)')
             )
         revs = scmutil.revrange(repo, opts['rev'])
 
     props = {}
     for d in opts['define']:
         try:
             k, v = (e.strip() for e in d.split(b'=', 1))
             if not k or k == b'ui':
                 raise ValueError
             props[k] = v
         except ValueError:
             raise error.Abort(_(b'malformed keyword definition: %s') % d)
 
     if ui.verbose:
         aliases = ui.configitems(b'templatealias')
         tree = templater.parse(tmpl)
         ui.note(templater.prettyformat(tree), b'\n')
         newtree = templater.expandaliases(tree, aliases)
         if newtree != tree:
             ui.notenoi18n(
                 b"* expanded:\n", templater.prettyformat(newtree), b'\n'
             )
 
     if revs is None:
         tres = formatter.templateresources(ui, repo)
         t = formatter.maketemplater(ui, tmpl, resources=tres)
         if ui.verbose:
             kwds, funcs = t.symbolsuseddefault()
             ui.writenoi18n(b"* keywords: %s\n" % b', '.join(sorted(kwds)))
             ui.writenoi18n(b"* functions: %s\n" % b', '.join(sorted(funcs)))
         ui.write(t.renderdefault(props))
     else:
         displayer = logcmdutil.maketemplater(ui, repo, tmpl)
         if ui.verbose:
             kwds, funcs = displayer.t.symbolsuseddefault()
             ui.writenoi18n(b"* keywords: %s\n" % b', '.join(sorted(kwds)))
             ui.writenoi18n(b"* functions: %s\n" % b', '.join(sorted(funcs)))
         for r in revs:
             displayer.show(repo[r], **pycompat.strkwargs(props))
         displayer.close()
 
 
 @command(
     b'debuguigetpass',
     [(b'p', b'prompt', b'', _(b'prompt text'), _(b'TEXT')),],
     _(b'[-p TEXT]'),
     norepo=True,
 )
 def debuguigetpass(ui, prompt=b''):
     """show prompt to type password"""
     r = ui.getpass(prompt)
     ui.writenoi18n(b'respose: %s\n' % r)
 
 
 @command(
     b'debuguiprompt',
     [(b'p', b'prompt', b'', _(b'prompt text'), _(b'TEXT')),],
     _(b'[-p TEXT]'),
     norepo=True,
 )
 def debuguiprompt(ui, prompt=b''):
     """show plain prompt"""
     r = ui.prompt(prompt)
     ui.writenoi18n(b'response: %s\n' % r)
 
 
 @command(b'debugupdatecaches', [])
 def debugupdatecaches(ui, repo, *pats, **opts):
     """warm all known caches in the repository"""
     with repo.wlock(), repo.lock():
         repo.updatecaches(full=True)
 
 
 @command(
     b'debugupgraderepo',
     [
         (
             b'o',
             b'optimize',
             [],
             _(b'extra optimization to perform'),
             _(b'NAME'),
         ),
         (b'', b'run', False, _(b'performs an upgrade')),
         (b'', b'backup', True, _(b'keep the old repository content around')),
         (b'', b'changelog', None, _(b'select the changelog for upgrade')),
         (b'', b'manifest', None, _(b'select the manifest for upgrade')),
     ],
 )
 def debugupgraderepo(ui, repo, run=False, optimize=None, backup=True, **opts):
     """upgrade a repository to use different features
 
     If no arguments are specified, the repository is evaluated for upgrade
     and a list of problems and potential optimizations is printed.
 
     With ``--run``, a repository upgrade is performed. Behavior of the upgrade
     can be influenced via additional arguments. More details will be provided
     by the command output when run without ``--run``.
 
     During the upgrade, the repository will be locked and no writes will be
     allowed.
 
     At the end of the upgrade, the repository may not be readable while new
     repository data is swapped in. This window will be as long as it takes to
     rename some directories inside the ``.hg`` directory. On most machines, this
     should complete almost instantaneously and the chances of a consumer being
     unable to access the repository should be low.
 
     By default, all revlog will be upgraded. You can restrict this using flag
     such as `--manifest`:
 
       * `--manifest`: only optimize the manifest
       * `--no-manifest`: optimize all revlog but the manifest
       * `--changelog`: optimize the changelog only
       * `--no-changelog --no-manifest`: optimize filelogs only
     """
     return upgrade.upgraderepo(
         ui, repo, run=run, optimize=optimize, backup=backup, **opts
     )
 
 
 @command(
     b'debugwalk', cmdutil.walkopts, _(b'[OPTION]... [FILE]...'), inferrepo=True
 )
 def debugwalk(ui, repo, *pats, **opts):
     """show how files match on given patterns"""
     opts = pycompat.byteskwargs(opts)
     m = scmutil.match(repo[None], pats, opts)
     if ui.verbose:
         ui.writenoi18n(b'* matcher:\n', stringutil.prettyrepr(m), b'\n')
     items = list(repo[None].walk(m))
     if not items:
         return
     f = lambda fn: fn
     if ui.configbool(b'ui', b'slash') and pycompat.ossep != b'/':
         f = lambda fn: util.normpath(fn)
     fmt = b'f  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for abs in items]),
         max([len(repo.pathto(abs)) for abs in items]),
     )
     for abs in items:
         line = fmt % (
             abs,
             f(repo.pathto(abs)),
             m.exact(abs) and b'exact' or b'',
         )
         ui.write(b"%s\n" % line.rstrip())
 
 
 @command(b'debugwhyunstable', [], _(b'REV'))
 def debugwhyunstable(ui, repo, rev):
     """explain instabilities of a changeset"""
     for entry in obsutil.whyunstable(repo, scmutil.revsingle(repo, rev)):
         dnodes = b''
         if entry.get(b'divergentnodes'):
             dnodes = (
                 b' '.join(
                     b'%s (%s)' % (ctx.hex(), ctx.phasestr())
                     for ctx in entry[b'divergentnodes']
                 )
                 + b' '
             )
         ui.write(
             b'%s: %s%s %s\n'
             % (entry[b'instability'], dnodes, entry[b'reason'], entry[b'node'])
         )
 
 
 @command(
     b'debugwireargs',
     [
         (b'', b'three', b'', b'three'),
         (b'', b'four', b'', b'four'),
         (b'', b'five', b'', b'five'),
     ]
     + cmdutil.remoteopts,
     _(b'REPO [OPTIONS]... [ONE [TWO]]'),
     norepo=True,
 )
 def debugwireargs(ui, repopath, *vals, **opts):
     opts = pycompat.byteskwargs(opts)
     repo = hg.peer(ui, opts, repopath)
     for opt in cmdutil.remoteopts:
         del opts[opt[1]]
     args = {}
     for k, v in pycompat.iteritems(opts):
         if v:
             args[k] = v
     args = pycompat.strkwargs(args)
     # run twice to check that we don't mess up the stream for the next command
     res1 = repo.debugwireargs(*vals, **args)
     res2 = repo.debugwireargs(*vals, **args)
     ui.write(b"%s\n" % res1)
     if res1 != res2:
         ui.warn(b"%s\n" % res2)
 
 
 def _parsewirelangblocks(fh):
     activeaction = None
     blocklines = []
     lastindent = 0
 
     for line in fh:
         line = line.rstrip()
         if not line:
             continue
 
         if line.startswith(b'#'):
             continue
 
         if not line.startswith(b' '):
             # New block. Flush previous one.
             if activeaction:
                 yield activeaction, blocklines
 
             activeaction = line
             blocklines = []
             lastindent = 0
             continue
 
         # Else we start with an indent.
 
         if not activeaction:
             raise error.Abort(_(b'indented line outside of block'))
 
         indent = len(line) - len(line.lstrip())
 
         # If this line is indented more than the last line, concatenate it.
         if indent > lastindent and blocklines:
             blocklines[-1] += line.lstrip()
         else:
             blocklines.append(line)
             lastindent = indent
 
     # Flush last block.
     if activeaction:
         yield activeaction, blocklines
 
 
 @command(
     b'debugwireproto',
     [
         (b'', b'localssh', False, _(b'start an SSH server for this repo')),
         (b'', b'peer', b'', _(b'construct a specific version of the peer')),
         (
             b'',
             b'noreadstderr',
             False,
             _(b'do not read from stderr of the remote'),
         ),
         (
             b'',
             b'nologhandshake',
             False,
             _(b'do not log I/O related to the peer handshake'),
         ),
     ]
     + cmdutil.remoteopts,
     _(b'[PATH]'),
     optionalrepo=True,
 )
 def debugwireproto(ui, repo, path=None, **opts):
     """send wire protocol commands to a server
 
     This command can be used to issue wire protocol commands to remote
     peers and to debug the raw data being exchanged.
 
     ``--localssh`` will start an SSH server against the current repository
     and connect to that. By default, the connection will perform a handshake
     and establish an appropriate peer instance.
 
     ``--peer`` can be used to bypass the handshake protocol and construct a
     peer instance using the specified class type. Valid values are ``raw``,
     ``http2``, ``ssh1``, and ``ssh2``. ``raw`` instances only allow sending
     raw data payloads and don't support higher-level command actions.
 
     ``--noreadstderr`` can be used to disable automatic reading from stderr
     of the peer (for SSH connections only). Disabling automatic reading of
     stderr is useful for making output more deterministic.
 
     Commands are issued via a mini language which is specified via stdin.
     The language consists of individual actions to perform. An action is
     defined by a block. A block is defined as a line with no leading
     space followed by 0 or more lines with leading space. Blocks are
     effectively a high-level command with additional metadata.
 
     Lines beginning with ``#`` are ignored.
 
     The following sections denote available actions.
 
     raw
     ---
 
     Send raw data to the server.
 
     The block payload contains the raw data to send as one atomic send
     operation. The data may not actually be delivered in a single system
     call: it depends on the abilities of the transport being used.
 
     Each line in the block is de-indented and concatenated. Then, that
     value is evaluated as a Python b'' literal. This allows the use of
     backslash escaping, etc.
 
     raw+
     ----
 
     Behaves like ``raw`` except flushes output afterwards.
 
     command <X>
     -----------
 
     Send a request to run a named command, whose name follows the ``command``
     string.
 
     Arguments to the command are defined as lines in this block. The format of
     each line is ``<key> <value>``. e.g.::
 
        command listkeys
            namespace bookmarks
 
     If the value begins with ``eval:``, it will be interpreted as a Python
     literal expression. Otherwise values are interpreted as Python b'' literals.
     This allows sending complex types and encoding special byte sequences via
     backslash escaping.
 
     The following arguments have special meaning:
 
     ``PUSHFILE``
         When defined, the *push* mechanism of the peer will be used instead
         of the static request-response mechanism and the content of the
         file specified in the value of this argument will be sent as the
         command payload.
 
         This can be used to submit a local bundle file to the remote.
 
     batchbegin
     ----------
 
     Instruct the peer to begin a batched send.
 
     All ``command`` blocks are queued for execution until the next
     ``batchsubmit`` block.
 
     batchsubmit
     -----------
 
     Submit previously queued ``command`` blocks as a batch request.
 
     This action MUST be paired with a ``batchbegin`` action.
 
     httprequest <method> <path>
     ---------------------------
 
     (HTTP peer only)
 
     Send an HTTP request to the peer.
 
     The HTTP request line follows the ``httprequest`` action. e.g. ``GET /foo``.
 
     Arguments of the form ``<key>: <value>`` are interpreted as HTTP request
     headers to add to the request. e.g. ``Accept: foo``.
 
     The following arguments are special:
 
     ``BODYFILE``
         The content of the file defined as the value to this argument will be
         transferred verbatim as the HTTP request body.
 
     ``frame <type> <flags> <payload>``
         Send a unified protocol frame as part of the request body.
 
         All frames will be collected and sent as the body to the HTTP
         request.
 
     close
     -----
 
     Close the connection to the server.
 
     flush
     -----
 
     Flush data written to the server.
 
     readavailable
     -------------
 
     Close the write end of the connection and read all available data from
     the server.
 
     If the connection to the server encompasses multiple pipes, we poll both
     pipes and read available data.
 
     readline
     --------
 
     Read a line of output from the server. If there are multiple output
     pipes, reads only the main pipe.
 
     ereadline
     ---------
 
     Like ``readline``, but read from the stderr pipe, if available.
 
     read <X>
     --------
 
     ``read()`` N bytes from the server's main output pipe.
 
     eread <X>
     ---------
 
     ``read()`` N bytes from the server's stderr pipe, if available.
 
     Specifying Unified Frame-Based Protocol Frames
     ----------------------------------------------
 
     It is possible to emit a *Unified Frame-Based Protocol* by using special
     syntax.
 
     A frame is composed as a type, flags, and payload. These can be parsed
     from a string of the form:
 
        <request-id> <stream-id> <stream-flags> <type> <flags> <payload>
 
     ``request-id`` and ``stream-id`` are integers defining the request and
     stream identifiers.
 
     ``type`` can be an integer value for the frame type or the string name
     of the type. The strings are defined in ``wireprotoframing.py``. e.g.
     ``command-name``.
 
     ``stream-flags`` and ``flags`` are a ``|`` delimited list of flag
     components. Each component (and there can be just one) can be an integer
     or a flag name for stream flags or frame flags, respectively. Values are
     resolved to integers and then bitwise OR'd together.
 
     ``payload`` represents the raw frame payload. If it begins with
     ``cbor:``, the following string is evaluated as Python code and the
     resulting object is fed into a CBOR encoder. Otherwise it is interpreted
     as a Python byte string literal.
     """
     opts = pycompat.byteskwargs(opts)
 
     if opts[b'localssh'] and not repo:
         raise error.Abort(_(b'--localssh requires a repository'))
 
     if opts[b'peer'] and opts[b'peer'] not in (
         b'raw',
         b'http2',
         b'ssh1',
         b'ssh2',
     ):
         raise error.Abort(
             _(b'invalid value for --peer'),
             hint=_(b'valid values are "raw", "ssh1", and "ssh2"'),
         )
 
     if path and opts[b'localssh']:
         raise error.Abort(_(b'cannot specify --localssh with an explicit path'))
 
     if ui.interactive():
         ui.write(_(b'(waiting for commands on stdin)\n'))
 
     blocks = list(_parsewirelangblocks(ui.fin))
 
     proc = None
     stdin = None
     stdout = None
     stderr = None
     opener = None
 
     if opts[b'localssh']:
         # We start the SSH server in its own process so there is process
         # separation. This prevents a whole class of potential bugs around
         # shared state from interfering with server operation.
         args = procutil.hgcmd() + [
             b'-R',
             repo.root,
             b'debugserve',
             b'--sshstdio',
         ]
         proc = subprocess.Popen(
             pycompat.rapply(procutil.tonativestr, args),
             stdin=subprocess.PIPE,
             stdout=subprocess.PIPE,
             stderr=subprocess.PIPE,
             bufsize=0,
         )
 
         stdin = proc.stdin
         stdout = proc.stdout
         stderr = proc.stderr
 
         # We turn the pipes into observers so we can log I/O.
         if ui.verbose or opts[b'peer'] == b'raw':
             stdin = util.makeloggingfileobject(
                 ui, proc.stdin, b'i', logdata=True
             )
             stdout = util.makeloggingfileobject(
                 ui, proc.stdout, b'o', logdata=True
             )
             stderr = util.makeloggingfileobject(
                 ui, proc.stderr, b'e', logdata=True
             )
 
         # --localssh also implies the peer connection settings.
 
         url = b'ssh://localserver'
         autoreadstderr = not opts[b'noreadstderr']
 
         if opts[b'peer'] == b'ssh1':
             ui.write(_(b'creating ssh peer for wire protocol version 1\n'))
             peer = sshpeer.sshv1peer(
                 ui,
                 url,
                 proc,
                 stdin,
                 stdout,
                 stderr,
                 None,
                 autoreadstderr=autoreadstderr,
             )
         elif opts[b'peer'] == b'ssh2':
             ui.write(_(b'creating ssh peer for wire protocol version 2\n'))
             peer = sshpeer.sshv2peer(
                 ui,
                 url,
                 proc,
                 stdin,
                 stdout,
                 stderr,
                 None,
                 autoreadstderr=autoreadstderr,
             )
         elif opts[b'peer'] == b'raw':
             ui.write(_(b'using raw connection to peer\n'))
             peer = None
         else:
             ui.write(_(b'creating ssh peer from handshake results\n'))
             peer = sshpeer.makepeer(
                 ui,
                 url,
                 proc,
                 stdin,
                 stdout,
                 stderr,
                 autoreadstderr=autoreadstderr,
             )
 
     elif path:
         # We bypass hg.peer() so we can proxy the sockets.
         # TODO consider not doing this because we skip
         # ``hg.wirepeersetupfuncs`` and potentially other useful functionality.
         u = util.url(path)
         if u.scheme != b'http':
             raise error.Abort(_(b'only http:// paths are currently supported'))
 
         url, authinfo = u.authinfo()
         openerargs = {
             'useragent': b'Mercurial debugwireproto',
         }
 
         # Turn pipes/sockets into observers so we can log I/O.
         if ui.verbose:
             openerargs.update(
                 {
                     'loggingfh': ui,
                     'loggingname': b's',
                     'loggingopts': {'logdata': True, 'logdataapis': False,},
                 }
             )
 
         if ui.debugflag:
             openerargs['loggingopts']['logdataapis'] = True
 
         # Don't send default headers when in raw mode. This allows us to
         # bypass most of the behavior of our URL handling code so we can
         # have near complete control over what's sent on the wire.
         if opts[b'peer'] == b'raw':
             openerargs['sendaccept'] = False
 
         opener = urlmod.opener(ui, authinfo, **openerargs)
 
         if opts[b'peer'] == b'http2':
             ui.write(_(b'creating http peer for wire protocol version 2\n'))
             # We go through makepeer() because we need an API descriptor for
             # the peer instance to be useful.
             with ui.configoverride(
                 {(b'experimental', b'httppeer.advertise-v2'): True}
             ):
                 if opts[b'nologhandshake']:
                     ui.pushbuffer()
 
                 peer = httppeer.makepeer(ui, path, opener=opener)
 
                 if opts[b'nologhandshake']:
                     ui.popbuffer()
 
             if not isinstance(peer, httppeer.httpv2peer):
                 raise error.Abort(
                     _(
                         b'could not instantiate HTTP peer for '
                         b'wire protocol version 2'
                     ),
                     hint=_(
                         b'the server may not have the feature '
                         b'enabled or is not allowing this '
                         b'client version'
                     ),
                 )
 
         elif opts[b'peer'] == b'raw':
             ui.write(_(b'using raw connection to peer\n'))
             peer = None
         elif opts[b'peer']:
             raise error.Abort(
                 _(b'--peer %s not supported with HTTP peers') % opts[b'peer']
             )
         else:
             peer = httppeer.makepeer(ui, path, opener=opener)
 
         # We /could/ populate stdin/stdout with sock.makefile()...
     else:
         raise error.Abort(_(b'unsupported connection configuration'))
 
     batchedcommands = None
 
     # Now perform actions based on the parsed wire language instructions.
     for action, lines in blocks:
         if action in (b'raw', b'raw+'):
             if not stdin:
                 raise error.Abort(_(b'cannot call raw/raw+ on this peer'))
 
             # Concatenate the data together.
             data = b''.join(l.lstrip() for l in lines)
             data = stringutil.unescapestr(data)
             stdin.write(data)
 
             if action == b'raw+':
                 stdin.flush()
         elif action == b'flush':
             if not stdin:
                 raise error.Abort(_(b'cannot call flush on this peer'))
             stdin.flush()
         elif action.startswith(b'command'):
             if not peer:
                 raise error.Abort(
                     _(
                         b'cannot send commands unless peer instance '
                         b'is available'
                     )
                 )
 
             command = action.split(b' ', 1)[1]
 
             args = {}
             for line in lines:
                 # We need to allow empty values.
                 fields = line.lstrip().split(b' ', 1)
                 if len(fields) == 1:
                     key = fields[0]
                     value = b''
                 else:
                     key, value = fields
 
                 if value.startswith(b'eval:'):
                     value = stringutil.evalpythonliteral(value[5:])
                 else:
                     value = stringutil.unescapestr(value)
 
                 args[key] = value
 
             if batchedcommands is not None:
                 batchedcommands.append((command, args))
                 continue
 
             ui.status(_(b'sending %s command\n') % command)
 
             if b'PUSHFILE' in args:
                 with open(args[b'PUSHFILE'], 'rb') as fh:
                     del args[b'PUSHFILE']
                     res, output = peer._callpush(
                         command, fh, **pycompat.strkwargs(args)
                     )
                     ui.status(_(b'result: %s\n') % stringutil.escapestr(res))
                     ui.status(
                         _(b'remote output: %s\n') % stringutil.escapestr(output)
                     )
             else:
                 with peer.commandexecutor() as e:
                     res = e.callcommand(command, args).result()
 
                 if isinstance(res, wireprotov2peer.commandresponse):
                     val = res.objects()
                     ui.status(
                         _(b'response: %s\n')
                         % stringutil.pprint(val, bprefix=True, indent=2)
                     )
                 else:
                     ui.status(
                         _(b'response: %s\n')
                         % stringutil.pprint(res, bprefix=True, indent=2)
                     )
 
         elif action == b'batchbegin':
             if batchedcommands is not None:
                 raise error.Abort(_(b'nested batchbegin not allowed'))
 
             batchedcommands = []
         elif action == b'batchsubmit':
             # There is a batching API we could go through. But it would be
             # difficult to normalize requests into function calls. It is easier
             # to bypass this layer and normalize to commands + args.
             ui.status(
                 _(b'sending batch with %d sub-commands\n')
                 % len(batchedcommands)
             )
             assert peer is not None
             for i, chunk in enumerate(peer._submitbatch(batchedcommands)):
                 ui.status(
                     _(b'response #%d: %s\n') % (i, stringutil.escapestr(chunk))
                 )
 
             batchedcommands = None
 
         elif action.startswith(b'httprequest '):
             if not opener:
                 raise error.Abort(
                     _(b'cannot use httprequest without an HTTP peer')
                 )
 
             request = action.split(b' ', 2)
             if len(request) != 3:
                 raise error.Abort(
                     _(
                         b'invalid httprequest: expected format is '
                         b'"httprequest <method> <path>'
                     )
                 )
 
             method, httppath = request[1:]
             headers = {}
             body = None
             frames = []
             for line in lines:
                 line = line.lstrip()
                 m = re.match(b'^([a-zA-Z0-9_-]+): (.*)$', line)
                 if m:
                     # Headers need to use native strings.
                     key = pycompat.strurl(m.group(1))
                     value = pycompat.strurl(m.group(2))
                     headers[key] = value
                     continue
 
                 if line.startswith(b'BODYFILE '):
                     with open(line.split(b' ', 1), b'rb') as fh:
                         body = fh.read()
                 elif line.startswith(b'frame '):
                     frame = wireprotoframing.makeframefromhumanstring(
                         line[len(b'frame ') :]
                     )
 
                     frames.append(frame)
                 else:
                     raise error.Abort(
                         _(b'unknown argument to httprequest: %s') % line
                     )
 
             url = path + httppath
 
             if frames:
                 body = b''.join(bytes(f) for f in frames)
 
             req = urlmod.urlreq.request(pycompat.strurl(url), body, headers)
 
             # urllib.Request insists on using has_data() as a proxy for
             # determining the request method. Override that to use our
             # explicitly requested method.
             req.get_method = lambda: pycompat.sysstr(method)
 
             try:
                 res = opener.open(req)
                 body = res.read()
             except util.urlerr.urlerror as e:
                 # read() method must be called, but only exists in Python 2
                 getattr(e, 'read', lambda: None)()
                 continue
 
             ct = res.headers.get('Content-Type')
             if ct == 'application/mercurial-cbor':
                 ui.write(
                     _(b'cbor> %s\n')
                     % stringutil.pprint(
                         cborutil.decodeall(body), bprefix=True, indent=2
                     )
                 )
 
         elif action == b'close':
             assert peer is not None
             peer.close()
         elif action == b'readavailable':
             if not stdout or not stderr:
                 raise error.Abort(
                     _(b'readavailable not available on this peer')
                 )
 
             stdin.close()
             stdout.read()
             stderr.read()
 
         elif action == b'readline':
             if not stdout:
                 raise error.Abort(_(b'readline not available on this peer'))
             stdout.readline()
         elif action == b'ereadline':
             if not stderr:
                 raise error.Abort(_(b'ereadline not available on this peer'))
             stderr.readline()
         elif action.startswith(b'read '):
             count = int(action.split(b' ', 1)[1])
             if not stdout:
                 raise error.Abort(_(b'read not available on this peer'))
             stdout.read(count)
         elif action.startswith(b'eread '):
             count = int(action.split(b' ', 1)[1])
             if not stderr:
                 raise error.Abort(_(b'eread not available on this peer'))
             stderr.read(count)
         else:
             raise error.Abort(_(b'unknown action: %s') % action)
 
     if batchedcommands is not None:
         raise error.Abort(_(b'unclosed "batchbegin" request'))
 
     if peer:
         peer.close()
 
     if proc:
         proc.kill()

relnotes/next

@@ -1,39 +1,45 b''
 == New Features ==
 
  * `hg purge`/`hg clean` can now delete ignored files instead of
    untracked files, with the new -i flag.
 
  * `hg log` now defaults to using an '%' symbol for commits involved
     in unresolved merge conflicts. That includes unresolved conflicts
     caused by e.g. `hg update --merge` and `hg graft`. '@' still takes
     precedence, so what used to be marked '@' still is.
 
  * New `conflictlocal()` and `conflictother()` revsets return the
    commits that are being merged, when there are conflicts. Also works
    for conflicts caused by e.g. `hg graft`.
 
+ * `hg debugmergestate` output is now templated, which may be useful
+   e.g. for IDEs that want to help the user resolve merge conflicts.
+
 
 == New Experimental Features ==
 
 
 == Bug Fixes  ==
 
 
 == Backwards Compatibility Changes ==
 
  * When `hg rebase` pauses for merge conflict resolution, the working
    copy will no longer have the rebased node as a second parent. You
    can use the new `conflictparents()` revset for finding the other
    parent during a conflict.
 
+ * `hg debugmergestate` output format changed. Let us know if that is
+   causing you problems and we'll roll it back.
+
 
 == Internal API Changes ==
 
  * The deprecated `ui.progress()` has now been deleted. Please use
    `ui.makeprogress()` instead.
 
  * `hg.merge()` has lost its `abort` argument. Please call
    `hg.abortmerge()` directly instead.
 
  * The `*others` argument of `cmdutil.check_incompatible_arguments()`
    changed from being varargs argument to being a single collection.

tests/test-backout.t

@@ -1,807 +1,806 b''
   $ hg init basic
   $ cd basic
 
 should complain
 
   $ hg backout
   abort: please specify a revision to backout
   [255]
   $ hg backout -r 0 0
   abort: please specify just one revision
   [255]
 
 basic operation
 (this also tests that editor is invoked if the commit message is not
 specified explicitly)
 
   $ echo a > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo b >> a
   $ hg commit -d '1 0' -m b
 
   $ hg status --rev tip --rev "tip^1"
   M a
   $ HGEDITOR=cat hg backout -d '2 0' tip --tool=true
   reverting a
   Backed out changeset a820f4f40a57
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'default'
   HG: changed a
   changeset 2:2929462c3dff backs out changeset 1:a820f4f40a57
   $ cat a
   a
   $ hg summary
   parent: 2:2929462c3dff tip
    Backed out changeset a820f4f40a57
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 commit option
 
   $ cd ..
   $ hg init commit
   $ cd commit
 
   $ echo tomatoes > a
   $ hg add a
   $ hg commit -d '0 0' -m tomatoes
 
   $ echo chair > b
   $ hg add b
   $ hg commit -d '1 0' -m chair
 
   $ echo grapes >> a
   $ hg commit -d '2 0' -m grapes
 
   $ hg backout -d '4 0' 1 --tool=:fail
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   changeset 3:1c2161e97c0a backs out changeset 1:22cb4f70d813
   $ hg summary
   parent: 3:1c2161e97c0a tip
    Backed out changeset 22cb4f70d813
   branch: default
   commit: (clean)
   update: (current)
   phases: 4 draft
 
   $ echo ypples > a
   $ hg commit -d '5 0' -m ypples
 
   $ hg backout -d '6 0' 2 --tool=:fail
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ hg summary
   parent: 4:ed99997b793d tip
    ypples
   branch: default
   commit: 1 unresolved (clean)
   update: (current)
   phases: 5 draft
   $ hg log -G
   @  changeset:   4:ed99997b793d
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:05 1970 +0000
   |  summary:     ypples
   |
   o  changeset:   3:1c2161e97c0a
   |  user:        test
   |  date:        Thu Jan 01 00:00:04 1970 +0000
   |  summary:     Backed out changeset 22cb4f70d813
   |
   o  changeset:   2:a8c6e511cfee
   |  user:        test
   |  date:        Thu Jan 01 00:00:02 1970 +0000
   |  summary:     grapes
   |
   %  changeset:   1:22cb4f70d813
   |  user:        test
   |  date:        Thu Jan 01 00:00:01 1970 +0000
   |  summary:     chair
   |
   o  changeset:   0:a5cb2dde5805
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     tomatoes
   
 
 file that was removed is recreated
 (this also tests that editor is not invoked if the commit message is
 specified explicitly)
 
   $ cd ..
   $ hg init remove
   $ cd remove
 
   $ echo content > a
   $ hg commit -d '0 0' -A -m a
   adding a
 
   $ hg rm a
   $ hg commit -d '1 0' -m b
 
   $ HGEDITOR=cat hg backout -d '2 0' tip --tool=true -m "Backed out changeset 76862dcce372"
   adding a
   changeset 2:de31bdc76c0d backs out changeset 1:76862dcce372
   $ cat a
   content
   $ hg summary
   parent: 2:de31bdc76c0d tip
    Backed out changeset 76862dcce372
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 backout of backout is as if nothing happened
 
   $ hg backout -d '3 0' --merge tip --tool=true
   removing a
   changeset 3:7f6d0f120113 backs out changeset 2:de31bdc76c0d
   $ test -f a
   [1]
   $ hg summary
   parent: 3:7f6d0f120113 tip
    Backed out changeset de31bdc76c0d
   branch: default
   commit: (clean)
   update: (current)
   phases: 4 draft
 
 Test that 'hg rollback' restores dirstate just before opening
 transaction: in-memory dirstate changes should be written into
 '.hg/journal.dirstate' as expected.
 
   $ echo 'removed soon' > b
   $ hg commit -A -d '4 0' -m 'prepare for subsequent removing'
   adding b
   $ echo 'newly added' > c
   $ hg add c
   $ hg remove b
   $ hg commit -d '5 0' -m 'prepare for subsequent backout'
   $ touch -t 200001010000 c
   $ hg status -A
   C c
   $ hg debugstate --no-dates
   n 644         12 set                 c
   $ hg backout -d '6 0' -m 'to be rollback-ed soon' -r .
   removing c
   adding b
   changeset 6:4bfec048029d backs out changeset 5:fac0b729a654
   $ hg rollback -q
   $ hg status -A
   A b
   R c
   $ hg debugstate --no-dates
   a   0         -1 unset               b
   r   0          0 set                 c
 
 across branch
 
   $ cd ..
   $ hg init branch
   $ cd branch
   $ echo a > a
   $ hg ci -Am0
   adding a
   $ echo b > b
   $ hg ci -Am1
   adding b
   $ hg co -C 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg summary
   parent: 0:f7b1eb17ad24 
    0
   branch: default
   commit: (clean)
   update: 1 new changesets (update)
   phases: 2 draft
 
 should fail
 
   $ hg backout 1
   abort: cannot backout change that is not an ancestor
   [255]
   $ echo c > c
   $ hg ci -Am2
   adding c
   created new head
   $ hg summary
   parent: 2:db815d6d32e6 tip
    2
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 3 draft
 
 should fail
 
   $ hg backout 1
   abort: cannot backout change that is not an ancestor
   [255]
   $ hg summary
   parent: 2:db815d6d32e6 tip
    2
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 3 draft
 
 backout with merge
 
   $ cd ..
   $ hg init merge
   $ cd merge
 
   $ echo line 1 > a
   $ echo line 2 >> a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ hg summary
   parent: 0:59395513a13a tip
    a
   branch: default
   commit: (clean)
   update: (current)
   phases: 1 draft
 
 remove line 1
 
   $ echo line 2 > a
   $ hg commit -d '1 0' -m b
 
   $ echo line 3 >> a
   $ hg commit -d '2 0' -m c
 
   $ hg backout --merge -d '3 0' 1 --tool=true
   reverting a
   created new head
   changeset 3:26b8ccb9ad91 backs out changeset 1:5a50a024c182
   merging with changeset 3:26b8ccb9ad91
   merging a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg commit -d '4 0' -m d
   $ hg summary
   parent: 4:c7df5e0b9c09 tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 check line 1 is back
 
   $ cat a
   line 1
   line 2
   line 3
 
 Test visibility of in-memory dirstate changes outside transaction to
 external hook process
 
   $ cat > $TESTTMP/checkvisibility.sh <<EOF
   > echo "==== \$1:"
   > hg parents --template "{rev}:{node|short}\n"
   > echo "===="
   > EOF
 
 "hg backout --merge REV1" at REV2 below implies steps below:
 
 (1) update to REV1 (REV2 => REV1)
 (2) revert by REV1^1
 (3) commit backing out revision (REV3)
 (4) update to REV2 (REV3 => REV2)
 (5) merge with REV3 (REV2 => REV2, REV3)
 
 == test visibility to external preupdate hook
 
   $ hg update -q -C 2
   $ hg --config extensions.strip= strip 3
   saved backup bundle to * (glob)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
   > EOF
 
 ("-m" is needed to avoid writing dirstate changes out at other than
 invocation of the hook to be examined)
 
   $ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
   ==== preupdate:
   2:6ea3f2a197a2
   ====
   reverting a
   created new head
   changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
   ==== preupdate:
   3:d92a3f57f067
   ====
   merging with changeset 3:d92a3f57f067
   ==== preupdate:
   2:6ea3f2a197a2
   ====
   merging a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility =
   > EOF
 
 == test visibility to external update hook
 
   $ hg update -q -C 2
   $ hg --config extensions.strip= strip 3
   saved backup bundle to * (glob)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > update.visibility = sh $TESTTMP/checkvisibility.sh update
   > EOF
 
   $ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
   ==== update:
   1:5a50a024c182
   ====
   reverting a
   created new head
   changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
   ==== update:
   2:6ea3f2a197a2
   ====
   merging with changeset 3:d92a3f57f067
   merging a
   ==== update:
   2:6ea3f2a197a2
   3:d92a3f57f067
   ====
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > update.visibility =
   > EOF
 
   $ cd ..
 
 backout should not back out subsequent changesets
 
   $ hg init onecs
   $ cd onecs
   $ echo 1 > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo 2 >> a
   $ hg commit -d '1 0' -m b
   $ echo 1 > b
   $ hg commit -d '2 0' -A -m c
   adding b
   $ hg summary
   parent: 2:882396649954 tip
    c
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 without --merge
   $ hg backout --no-commit -d '3 0' 1 --tool=true
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   changeset 22bca4c721e5 backed out, don't forget to commit.
   $ hg locate b
   b
   $ hg update -C tip
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg locate b
   b
   $ hg summary
   parent: 2:882396649954 tip
    c
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
 
 with --merge
   $ hg backout --merge -d '3 0' 1 --tool=true
   reverting a
   created new head
   changeset 3:3202beb76721 backs out changeset 1:22bca4c721e5
   merging with changeset 3:3202beb76721
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg locate b
   b
   $ hg update -C tip
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg locate b
   [1]
 
   $ cd ..
   $ hg init m
   $ cd m
   $ echo a > a
   $ hg commit -d '0 0' -A -m a
   adding a
   $ echo b > b
   $ hg commit -d '1 0' -A -m b
   adding b
   $ echo c > c
   $ hg commit -d '2 0' -A -m b
   adding c
   $ hg update 1
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo d > d
   $ hg commit -d '3 0' -A -m c
   adding d
   created new head
   $ hg merge 2
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg commit -d '4 0' -A -m d
   $ hg summary
   parent: 4:b2f3bb92043e tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 backout of merge should fail
 
   $ hg backout 4
   abort: cannot backout a merge changeset
   [255]
 
 backout of merge with bad parent should fail
 
   $ hg backout --parent 0 4
   abort: cb9a9f314b8b is not a parent of b2f3bb92043e
   [255]
 
 backout of non-merge with parent should fail
 
   $ hg backout --parent 0 3
   abort: cannot use --parent on non-merge changeset
   [255]
 
 backout with valid parent should be ok
 
   $ hg backout -d '5 0' --parent 2 4 --tool=true
   removing d
   changeset 5:10e5328c8435 backs out changeset 4:b2f3bb92043e
   $ hg summary
   parent: 5:10e5328c8435 tip
    Backed out changeset b2f3bb92043e
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
 
   $ hg rollback
   repository tip rolled back to revision 4 (undo commit)
   working directory now based on revision 4
   $ hg update -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg summary
   parent: 4:b2f3bb92043e tip
    d
   branch: default
   commit: (clean)
   update: (current)
   phases: 5 draft
 
   $ hg backout -d '6 0' --parent 3 4 --tool=true
   removing c
   changeset 5:033590168430 backs out changeset 4:b2f3bb92043e
   $ hg summary
   parent: 5:033590168430 tip
    Backed out changeset b2f3bb92043e
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
 
   $ cd ..
 
 named branches
 
   $ hg init named_branches
   $ cd named_branches
 
   $ echo default > default
   $ hg ci -d '0 0' -Am default
   adding default
   $ hg branch branch1
   marked working directory as branch branch1
   (branches are permanent and global, did you want a bookmark?)
   $ echo branch1 > file1
   $ hg ci -d '1 0' -Am file1
   adding file1
   $ hg branch branch2
   marked working directory as branch branch2
   $ echo branch2 > file2
   $ hg ci -d '2 0' -Am file2
   adding file2
 
 without --merge
   $ hg backout --no-commit -r 1 --tool=true
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   changeset bf1602f437f3 backed out, don't forget to commit.
   $ hg branch
   branch2
   $ hg status -A
   R file1
   C default
   C file2
   $ hg summary
   parent: 2:45bbcd363bf0 tip
    file2
   branch: branch2
   commit: 1 removed
   update: (current)
   phases: 3 draft
 
 with --merge
 (this also tests that editor is invoked if '--edit' is specified
 explicitly regardless of '--message')
 
   $ hg update -qC
   $ HGEDITOR=cat hg backout --merge -d '3 0' -r 1 -m 'backout on branch1' --tool=true --edit
   removing file1
   backout on branch1
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: test
   HG: branch 'branch2'
   HG: removed file1
   created new head
   changeset 3:d4e8f6db59fb backs out changeset 1:bf1602f437f3
   merging with changeset 3:d4e8f6db59fb
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg summary
   parent: 2:45bbcd363bf0 
    file2
   parent: 3:d4e8f6db59fb tip
    backout on branch1
   branch: branch2
   commit: 1 removed (merge)
   update: (current)
   phases: 4 draft
   $ hg update -q -C 2
 
 on branch2 with branch1 not merged, so file1 should still exist:
 
   $ hg id
   45bbcd363bf0 (branch2)
   $ hg st -A
   C default
   C file1
   C file2
   $ hg summary
   parent: 2:45bbcd363bf0 
    file2
   branch: branch2
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 4 draft
 
 on branch2 with branch1 merged, so file1 should be gone:
 
   $ hg merge
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -d '4 0' -m 'merge backout of branch1'
   $ hg id
   d97a8500a969 (branch2) tip
   $ hg st -A
   C default
   C file2
   $ hg summary
   parent: 4:d97a8500a969 tip
    merge backout of branch1
   branch: branch2
   commit: (clean)
   update: (current)
   phases: 5 draft
 
 on branch1, so no file1 and file2:
 
   $ hg co -C branch1
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg id
   bf1602f437f3 (branch1)
   $ hg st -A
   C default
   C file1
   $ hg summary
   parent: 1:bf1602f437f3 
    file1
   branch: branch1
   commit: (clean)
   update: (current)
   phases: 5 draft
 
   $ cd ..
 
 backout of empty changeset (issue4190)
 
   $ hg init emptycommit
   $ cd emptycommit
 
   $ touch file1
   $ hg ci -Aqm file1
   $ hg branch -q branch1
   $ hg ci -qm branch1
   $ hg backout -v 1
   resolving manifests
   nothing changed
   [1]
 
   $ cd ..
 
 
 Test usage of `hg resolve` in case of conflict
 (issue4163)
 
   $ hg init issue4163
   $ cd issue4163
   $ touch foo
   $ hg add foo
   $ cat > foo << EOF
   > one
   > two
   > three
   > four
   > five
   > six
   > seven
   > height
   > nine
   > ten
   > EOF
   $ hg ci -m 'initial'
   $ cat > foo << EOF
   > one
   > two
   > THREE
   > four
   > five
   > six
   > seven
   > height
   > nine
   > ten
   > EOF
   $ hg ci -m 'capital three'
   $ cat > foo << EOF
   > one
   > two
   > THREE
   > four
   > five
   > six
   > seven
   > height
   > nine
   > TEN
   > EOF
   $ hg ci -m 'capital ten'
   $ hg backout -r 'desc("capital three")' --tool internal:fail
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ hg status
   $ hg debugmergestate
-  * version 2 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
   other: a30dd8addae3ce71b8667868478542bc417439e6
-  file extras: foo (ancestorlinknode = 91360952243723bd5b1138d5f26bd8c8564cb553)
-  file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
+  file: foo (state "u")
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
     other path: foo (node f50039b486d6fa1a90ae51778388cad161f425ee)
+    extra: ancestorlinknode = 91360952243723bd5b1138d5f26bd8c8564cb553
   $ mv .hg/merge/state2 .hg/merge/state2-moved
   $ hg debugmergestate
-  * version 1 records
   local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
-  file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
+  other: b71750c4b0fdf719734971e3ef90dbeab5919a2d
+  file: foo (state "u")
     local path: foo (flags "")
     ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
-    other path: foo (node not stored in v1 format)
+    other path:  (node foo)
   $ mv .hg/merge/state2-moved .hg/merge/state2
   $ hg resolve -l  # still unresolved
   U foo
   $ hg summary
   parent: 2:b71750c4b0fd tip
    capital ten
   branch: default
   commit: 1 unresolved (clean)
   update: (current)
   phases: 3 draft
   $ hg log -G
   @  changeset:   2:b71750c4b0fd
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     capital ten
   |
   o  changeset:   1:913609522437
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     capital three
   |
   %  changeset:   0:a30dd8addae3
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     initial
   
   $ hg resolve --all --debug
   picked tool ':merge' for foo (binary False symlink False changedelete False)
   merging foo
   my foo@b71750c4b0fd+ other foo@a30dd8addae3 ancestor foo@913609522437
    premerge successful
   (no more unresolved files)
   continue: hg commit
   $ hg status
   M foo
   ? foo.orig
   $ hg resolve -l
   R foo
   $ hg summary
   parent: 2:b71750c4b0fd tip
    capital ten
   branch: default
   commit: 1 modified, 1 unknown
   update: (current)
   phases: 3 draft
   $ cat foo
   one
   two
   three
   four
   five
   six
   seven
   height
   nine
   TEN
 
 --no-commit shouldn't commit
 
   $ hg init a
   $ cd a
   $ for i in 1 2 3; do
   >   touch $i
   >   hg ci -Am $i
   > done
   adding 1
   adding 2
   adding 3
   $ hg backout --no-commit .
   removing 3
   changeset cccc23d9d68f backed out, don't forget to commit.
   $ hg revert -aq
 
 --no-commit can't be used with --merge
 
   $ hg backout --merge --no-commit 2
   abort: cannot use --merge with --no-commit
   [255]

tests/test-completion.t

@@ -1,429 +1,429 b''
 Show all commands except debug commands
   $ hg debugcomplete
   abort
   add
   addremove
   annotate
   archive
   backout
   bisect
   bookmarks
   branch
   branches
   bundle
   cat
   clone
   commit
   config
   continue
   copy
   diff
   export
   files
   forget
   graft
   grep
   heads
   help
   identify
   import
   incoming
   init
   locate
   log
   manifest
   merge
   outgoing
   parents
   paths
   phase
   pull
   push
   recover
   remove
   rename
   resolve
   revert
   rollback
   root
   serve
   shelve
   status
   summary
   tag
   tags
   tip
   unbundle
   unshelve
   update
   verify
   version
 
 Show all commands that start with "a"
   $ hg debugcomplete a
   abort
   add
   addremove
   annotate
   archive
 
 Do not show debug commands if there are other candidates
   $ hg debugcomplete d
   diff
 
 Show debug commands if there are no other candidates
   $ hg debugcomplete debug
   debugancestor
   debugapplystreamclonebundle
   debugbuilddag
   debugbundle
   debugcapabilities
   debugcheckstate
   debugcolor
   debugcommands
   debugcomplete
   debugconfig
   debugcreatestreamclonebundle
   debugdag
   debugdata
   debugdate
   debugdeltachain
   debugdirstate
   debugdiscovery
   debugdownload
   debugextensions
   debugfileset
   debugformat
   debugfsinfo
   debuggetbundle
   debugignore
   debugindex
   debugindexdot
   debugindexstats
   debuginstall
   debugknown
   debuglabelcomplete
   debuglocks
   debugmanifestfulltextcache
   debugmergestate
   debugnamecomplete
   debugnodemap
   debugobsolete
   debugp1copies
   debugp2copies
   debugpathcomplete
   debugpathcopies
   debugpeer
   debugpickmergetool
   debugpushkey
   debugpvec
   debugrebuilddirstate
   debugrebuildfncache
   debugrename
   debugrevlog
   debugrevlogindex
   debugrevspec
   debugserve
   debugsetparents
   debugsidedata
   debugssl
   debugsub
   debugsuccessorssets
   debugtagscache
   debugtemplate
   debuguigetpass
   debuguiprompt
   debugupdatecaches
   debugupgraderepo
   debugwalk
   debugwhyunstable
   debugwireargs
   debugwireproto
 
 Do not show the alias of a debug command if there are other candidates
 (this should hide rawcommit)
   $ hg debugcomplete r
   recover
   remove
   rename
   resolve
   revert
   rollback
   root
 Show the alias of a debug command if there are no other candidates
   $ hg debugcomplete rawc
   
 
 Show the global options
   $ hg debugcomplete --options | sort
   --color
   --config
   --cwd
   --debug
   --debugger
   --encoding
   --encodingmode
   --help
   --hidden
   --noninteractive
   --pager
   --profile
   --quiet
   --repository
   --time
   --traceback
   --verbose
   --version
   -R
   -h
   -q
   -v
   -y
 
 Show the options for the "serve" command
   $ hg debugcomplete --options serve | sort
   --accesslog
   --address
   --certificate
   --cmdserver
   --color
   --config
   --cwd
   --daemon
   --daemon-postexec
   --debug
   --debugger
   --encoding
   --encodingmode
   --errorlog
   --help
   --hidden
   --ipv6
   --name
   --noninteractive
   --pager
   --pid-file
   --port
   --prefix
   --print-url
   --profile
   --quiet
   --repository
   --stdio
   --style
   --subrepos
   --templates
   --time
   --traceback
   --verbose
   --version
   --web-conf
   -6
   -A
   -E
   -R
   -S
   -a
   -d
   -h
   -n
   -p
   -q
   -t
   -v
   -y
 
 Show an error if we use --options with an ambiguous abbreviation
   $ hg debugcomplete --options s
   hg: command 's' is ambiguous:
       serve shelve showconfig status summary
   [255]
 
 Show all commands + options
   $ hg debugcommands
   abort: dry-run
   add: include, exclude, subrepos, dry-run
   addremove: similarity, subrepos, include, exclude, dry-run
   annotate: rev, follow, no-follow, text, user, file, date, number, changeset, line-number, skip, ignore-all-space, ignore-space-change, ignore-blank-lines, ignore-space-at-eol, include, exclude, template
   archive: no-decode, prefix, rev, type, subrepos, include, exclude
   backout: merge, commit, no-commit, parent, rev, edit, tool, include, exclude, message, logfile, date, user
   bisect: reset, good, bad, skip, extend, command, noupdate
   bookmarks: force, rev, delete, rename, inactive, list, template
   branch: force, clean, rev
   branches: active, closed, rev, template
   bundle: force, rev, branch, base, all, type, ssh, remotecmd, insecure
   cat: output, rev, decode, include, exclude, template
   clone: noupdate, updaterev, rev, branch, pull, uncompressed, stream, ssh, remotecmd, insecure
   commit: addremove, close-branch, amend, secret, edit, force-close-branch, interactive, include, exclude, message, logfile, date, user, subrepos
   config: untrusted, edit, local, global, template
   continue: dry-run
   copy: after, force, include, exclude, dry-run
   debugancestor: 
   debugapplystreamclonebundle: 
   debugbuilddag: mergeable-file, overwritten-file, new-file
   debugbundle: all, part-type, spec
   debugcapabilities: 
   debugcheckstate: 
   debugcolor: style
   debugcommands: 
   debugcomplete: options
   debugcreatestreamclonebundle: 
   debugdag: tags, branches, dots, spaces
   debugdata: changelog, manifest, dir
   debugdate: extended
   debugdeltachain: changelog, manifest, dir, template
   debugdirstate: nodates, dates, datesort
   debugdiscovery: old, nonheads, rev, seed, ssh, remotecmd, insecure
   debugdownload: output
   debugextensions: template
   debugfileset: rev, all-files, show-matcher, show-stage
   debugformat: template
   debugfsinfo: 
   debuggetbundle: head, common, type
   debugignore: 
   debugindex: changelog, manifest, dir, template
   debugindexdot: changelog, manifest, dir
   debugindexstats: 
   debuginstall: template
   debugknown: 
   debuglabelcomplete: 
   debuglocks: force-lock, force-wlock, set-lock, set-wlock
   debugmanifestfulltextcache: clear, add
-  debugmergestate: 
+  debugmergestate: style, template
   debugnamecomplete: 
   debugnodemap: dump-new, dump-disk, check, metadata
   debugobsolete: flags, record-parents, rev, exclusive, index, delete, date, user, template
   debugp1copies: rev
   debugp2copies: rev
   debugpathcomplete: full, normal, added, removed
   debugpathcopies: include, exclude
   debugpeer: 
   debugpickmergetool: rev, changedelete, include, exclude, tool
   debugpushkey: 
   debugpvec: 
   debugrebuilddirstate: rev, minimal
   debugrebuildfncache: 
   debugrename: rev
   debugrevlog: changelog, manifest, dir, dump
   debugrevlogindex: changelog, manifest, dir, format
   debugrevspec: optimize, show-revs, show-set, show-stage, no-optimized, verify-optimized
   debugserve: sshstdio, logiofd, logiofile
   debugsetparents: 
   debugsidedata: changelog, manifest, dir
   debugssl: 
   debugsub: rev
   debugsuccessorssets: closest
   debugtagscache: 
   debugtemplate: rev, define
   debuguigetpass: prompt
   debuguiprompt: prompt
   debugupdatecaches: 
   debugupgraderepo: optimize, run, backup, changelog, manifest
   debugwalk: include, exclude
   debugwhyunstable: 
   debugwireargs: three, four, five, ssh, remotecmd, insecure
   debugwireproto: localssh, peer, noreadstderr, nologhandshake, ssh, remotecmd, insecure
   diff: rev, change, text, git, binary, nodates, noprefix, show-function, reverse, ignore-all-space, ignore-space-change, ignore-blank-lines, ignore-space-at-eol, unified, stat, root, include, exclude, subrepos
   export: bookmark, output, switch-parent, rev, text, git, binary, nodates, template
   files: rev, print0, include, exclude, template, subrepos
   forget: interactive, include, exclude, dry-run
   graft: rev, base, continue, stop, abort, edit, log, no-commit, force, currentdate, currentuser, date, user, tool, dry-run
   grep: print0, all, diff, text, follow, ignore-case, files-with-matches, line-number, rev, all-files, user, date, template, include, exclude
   heads: rev, topo, active, closed, style, template
   help: extension, command, keyword, system
   identify: rev, num, id, branch, tags, bookmarks, ssh, remotecmd, insecure, template
   import: strip, base, secret, edit, force, no-commit, bypass, partial, exact, prefix, import-branch, message, logfile, date, user, similarity
   incoming: force, newest-first, bundle, rev, bookmarks, branch, patch, git, limit, no-merges, stat, graph, style, template, ssh, remotecmd, insecure, subrepos
   init: ssh, remotecmd, insecure
   locate: rev, print0, fullpath, include, exclude
   log: follow, follow-first, date, copies, keyword, rev, line-range, removed, only-merges, user, only-branch, branch, prune, patch, git, limit, no-merges, stat, graph, style, template, include, exclude
   manifest: rev, all, template
   merge: force, rev, preview, abort, tool
   outgoing: force, rev, newest-first, bookmarks, branch, patch, git, limit, no-merges, stat, graph, style, template, ssh, remotecmd, insecure, subrepos
   parents: rev, style, template
   paths: template
   phase: public, draft, secret, force, rev
   pull: update, force, rev, bookmark, branch, ssh, remotecmd, insecure
   push: force, rev, bookmark, branch, new-branch, pushvars, publish, ssh, remotecmd, insecure
   recover: verify
   remove: after, force, subrepos, include, exclude, dry-run
   rename: after, force, include, exclude, dry-run
   resolve: all, list, mark, unmark, no-status, re-merge, tool, include, exclude, template
   revert: all, date, rev, no-backup, interactive, include, exclude, dry-run
   rollback: dry-run, force
   root: template
   serve: accesslog, daemon, daemon-postexec, errorlog, port, address, prefix, name, web-conf, webdir-conf, pid-file, stdio, cmdserver, templates, style, ipv6, certificate, print-url, subrepos
   shelve: addremove, unknown, cleanup, date, delete, edit, keep, list, message, name, patch, interactive, stat, include, exclude
   status: all, modified, added, removed, deleted, clean, unknown, ignored, no-status, terse, copies, print0, rev, change, include, exclude, subrepos, template
   summary: remote
   tag: force, local, rev, remove, edit, message, date, user
   tags: template
   tip: patch, git, style, template
   unbundle: update
   unshelve: abort, continue, interactive, keep, name, tool, date
   update: clean, check, merge, date, rev, tool
   verify: full
   version: template
 
   $ hg init a
   $ cd a
   $ echo fee > fee
   $ hg ci -q -Amfee
   $ hg tag fee
   $ mkdir fie
   $ echo dead > fie/dead
   $ echo live > fie/live
   $ hg bookmark fo
   $ hg branch -q fie
   $ hg ci -q -Amfie
   $ echo fo > fo
   $ hg branch -qf default
   $ hg ci -q -Amfo
   $ echo Fum > Fum
   $ hg ci -q -AmFum
   $ hg bookmark Fum
 
 Test debugpathcomplete
 
   $ hg debugpathcomplete f
   fee
   fie
   fo
   $ hg debugpathcomplete -f f
   fee
   fie/dead
   fie/live
   fo
 
   $ hg rm Fum
   $ hg debugpathcomplete -r F
   Fum
 
 Test debugnamecomplete
 
   $ hg debugnamecomplete
   Fum
   default
   fee
   fie
   fo
   tip
   $ hg debugnamecomplete f
   fee
   fie
   fo
 
 Test debuglabelcomplete, a deprecated name for debugnamecomplete that is still
 used for completions in some shells.
 
   $ hg debuglabelcomplete
   Fum
   default
   fee
   fie
   fo
   tip
   $ hg debuglabelcomplete f
   fee
   fie
   fo

tests/test-histedit-non-commute-abort.t

@@ -1,187 +1,173 b''
   $ . "$TESTDIR/histedit-helpers.sh"
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > histedit=
   > EOF
 
   $ initrepo ()
   > {
   >     hg init r
   >     cd r
   >     for x in a b c d e f ; do
   >         echo $x > $x
   >         hg add $x
   >         hg ci -m $x
   >     done
   >     echo a >> e
   >     hg ci -m 'does not commute with e'
   >     cd ..
   > }
 
   $ initrepo
   $ cd r
 
 log before edit
   $ hg log --graph
   @  changeset:   6:bfa474341cc9
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     does not commute with e
   |
   o  changeset:   5:652413bf663e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     f
   |
   o  changeset:   4:e860deea161a
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     e
   |
   o  changeset:   3:055a42cdd887
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     d
   |
   o  changeset:   2:177f92b77385
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     c
   |
   o  changeset:   1:d2ae7f538514
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     b
   |
   o  changeset:   0:cb9a9f314b8b
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     a
   
 
 edit the history
   $ hg histedit 177f92b77385 --commands - 2>&1 <<EOF | fixbundle
   > pick 177f92b77385 c
   > pick 055a42cdd887 d
   > pick bfa474341cc9 does not commute with e
   > pick e860deea161a e
   > pick 652413bf663e f
   > EOF
   merging e
   warning: conflicts while merging e! (edit, then use 'hg resolve --mark')
   Fix up the change (pick e860deea161a)
   (hg histedit --continue to resume)
 
 insert unsupported advisory merge record
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -x
   $ hg debugmergestate
-  * version 2 records
-  local: 8f7551c7e4a2f2efe0bc8c741baf7f227d65d758
-  other: e860deea161a2f77de56603b340ebbb4536308ae
-  labels:
-    local: local
-    other: histedit
-  unrecognized entry: x	advisory record
-  file extras: e (ancestorlinknode = 0000000000000000000000000000000000000000)
-  file: e (record type "F", state "u", hash 58e6b3a414a1e090dfc6029add0f3555ccba127f)
+  local (local): 8f7551c7e4a2f2efe0bc8c741baf7f227d65d758
+  other (histedit): e860deea161a2f77de56603b340ebbb4536308ae
+  file: e (state "u")
     local path: e (flags "")
-    ancestor path: e (node null)
+    ancestor path: e (node 0000000000000000000000000000000000000000)
     other path: e (node 6b67ccefd5ce6de77e7ead4f5292843a0255329f)
+    extra: ancestorlinknode = 0000000000000000000000000000000000000000
   $ hg resolve -l
   U e
 
 insert unsupported mandatory merge record
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -X
   $ hg debugmergestate
-  * version 2 records
-  local: 8f7551c7e4a2f2efe0bc8c741baf7f227d65d758
-  other: e860deea161a2f77de56603b340ebbb4536308ae
-  labels:
-    local: local
-    other: histedit
-  file extras: e (ancestorlinknode = 0000000000000000000000000000000000000000)
-  file: e (record type "F", state "u", hash 58e6b3a414a1e090dfc6029add0f3555ccba127f)
-    local path: e (flags "")
-    ancestor path: e (node null)
-    other path: e (node 6b67ccefd5ce6de77e7ead4f5292843a0255329f)
-  unrecognized entry: X	mandatory record
+  abort: unsupported merge state records: X
+  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
+  [255]
   $ hg resolve -l
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
   $ hg resolve -ma
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
 
 abort the edit (should clear out merge state)
   $ hg histedit --abort 2>&1 | fixbundle
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg debugmergestate
   no merge state found
 
 log after abort
   $ hg resolve -l
   $ hg log --graph
   @  changeset:   6:bfa474341cc9
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     does not commute with e
   |
   o  changeset:   5:652413bf663e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     f
   |
   o  changeset:   4:e860deea161a
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     e
   |
   o  changeset:   3:055a42cdd887
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     d
   |
   o  changeset:   2:177f92b77385
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     c
   |
   o  changeset:   1:d2ae7f538514
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     b
   |
   o  changeset:   0:cb9a9f314b8b
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     a
   
 
 Early tree conflict doesn't leave histedit in a wedged state. Note
 that we don't specify --commands here: we catch the problem before we
 even prompt the user for rules, sidestepping any dataloss issues.
 
   $ hg rm c
   $ hg ci -m 'remove c'
   $ echo collision > c
 
   $ hg histedit e860deea161a
   c: untracked file differs
   abort: untracked files in working directory conflict with files in 055a42cdd887
   [255]
 
 We should have detected the collision early enough we're not in a
 histedit state, and p1 is unchanged.
 
   $ hg log -r 'p1()' -T'{node}\n'
   1b0954ff00fccb15a37b679e4a35e9b01dfe685e
   $ hg status --config ui.tweakdefaults=yes
   ? c
   ? e.orig
 
   $ cd ..

tests/test-merge-changedelete.t

@@ -1,1140 +1,1076 b''
 Tests for change/delete conflicts, including:
 b5605d88dc27: Make ui.prompt repeat on "unrecognized response" again
  (issue897)
 
 840e2b315c1f: Fix misleading error and prompts during update/merge
  (issue556)
 
 Make sure HGMERGE doesn't interfere with the test
   $ unset HGMERGE
 
   $ status() {
   >     echo "--- status ---"
   >     hg st -A file1 file2 file3
   >     echo "--- resolve --list ---"
   >     hg resolve --list file1 file2 file3
   >     echo "--- debugmergestate ---"
   >     hg debugmergestate
   >     for file in file1 file2 file3; do
   >         if [ -f $file ]; then
   >             echo "--- $file ---"
   >             cat $file
   >         else
   >             echo "*** $file does not exist"
   >         fi
   >     done
   > }
 
   $ hg init repo
   $ cd repo
 
   $ echo 1 > file1
   $ echo 2 > file2
   $ echo 3 > file3
   $ hg ci -Am 'added files'
   adding file1
   adding file2
   adding file3
 
   $ hg rm file1
   $ echo changed >> file2
   $ echo changed1 >> file3
   $ hg ci -m 'removed file1, changed file2, changed file3'
 
   $ hg co 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ echo changed >> file1
   $ hg rm file2
   $ echo changed2 >> file3
   $ hg ci -m 'changed file1, removed file2, changed file3'
   created new head
 
 
 Non-interactive merge:
 
   $ hg merge -y
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   merging file3
   warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
   0 files updated, 0 files merged, 0 files removed, 3 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
   $ status
   --- status ---
   M file2
   M file3
   C file1
   --- resolve --list ---
   U file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   <<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
   changed2
   =======
   changed1
   >>>>>>> merge rev:    10f9a0a634e8 - test: removed file1, changed file2, chan...
 
 
 Interactive merge:
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
   > c
   > d
   > EOF
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? c
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? d
   merging file3
   warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
   0 files updated, 2 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
   $ status
   --- status ---
   file2: * (glob)
   M file3
   C file1
   --- resolve --list ---
   R file1
   R file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   *** file2 does not exist
   --- file3 ---
   3
   <<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
   changed2
   =======
   changed1
   >>>>>>> merge rev:    10f9a0a634e8 - test: removed file1, changed file2, chan...
 
 
 Interactive merge with bad input:
 
   $ hg co -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
   > foo
   > bar
   > d
   > baz
   > c
   > EOF
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? foo
   unrecognized response
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? bar
   unrecognized response
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? d
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? baz
   unrecognized response
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? c
   merging file3
   warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
   0 files updated, 1 files merged, 1 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
   $ status
   --- status ---
   M file2
   M file3
   R file1
   --- resolve --list ---
   R file1
   R file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   *** file1 does not exist
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   <<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
   changed2
   =======
   changed1
   >>>>>>> merge rev:    10f9a0a634e8 - test: removed file1, changed file2, chan...
 
 
 Interactive merge with not enough input:
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=true <<EOF
   > d
   > EOF
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? d
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   merging file3
   warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
   0 files updated, 0 files merged, 1 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
   $ status
   --- status ---
   M file2
   M file3
   R file1
   --- resolve --list ---
   R file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   *** file1 does not exist
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   <<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
   changed2
   =======
   changed1
   >>>>>>> merge rev:    10f9a0a634e8 - test: removed file1, changed file2, chan...
 
 Choose local versions of files
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :local
   0 files updated, 3 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ status 2>&1 | tee $TESTTMP/local.status
   --- status ---
   file2: * (glob)
   M file3
   C file1
   --- resolve --list ---
   R file1
   R file2
   R file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "r", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "r")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   *** file2 does not exist
   --- file3 ---
   3
   changed2
 
 Choose other versions of files
 
   $ hg co -C
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :other
   0 files updated, 2 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ status 2>&1 | tee $TESTTMP/other.status
   --- status ---
   M file2
   M file3
   R file1
   --- resolve --list ---
   R file1
   R file2
   R file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "r", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "r")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   *** file1 does not exist
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
 
 Fail
 
   $ hg co -C
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :fail
   0 files updated, 0 files merged, 0 files removed, 3 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ status 2>&1 | tee $TESTTMP/fail.status
   --- status ---
   M file2
   M file3
   C file1
   --- resolve --list ---
   U file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed2
 
 Force prompts with no input (should be similar to :fail)
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --config ui.interactive=True --tool :prompt
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   file 'file3' needs to be resolved.
   You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
   What do you want to do? 
   0 files updated, 0 files merged, 0 files removed, 3 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ status 2>&1 | tee $TESTTMP/prompt.status
   --- status ---
   M file2
   M file3
   C file1
   --- resolve --list ---
   U file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed2
   $ cmp $TESTTMP/fail.status $TESTTMP/prompt.status || diff -U8 $TESTTMP/fail.status $TESTTMP/prompt.status
 
 
 Force prompts
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :prompt
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   file 'file3' needs to be resolved.
   You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
   What do you want to do? u
   0 files updated, 0 files merged, 0 files removed, 3 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ status
   --- status ---
   M file2
   M file3
   C file1
   --- resolve --list ---
   U file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed2
 
 Choose to merge all files
 
   $ hg co -C
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to "13910f48cf7b: changed file1, removed file2, changed file3"
   1 other heads for branch "default"
 
   $ hg merge --tool :merge3
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   merging file3
   warning: conflicts while merging file3! (edit, then use 'hg resolve --mark')
   0 files updated, 0 files merged, 0 files removed, 3 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ status
   --- status ---
   M file2
   M file3
   C file1
   --- resolve --list ---
   U file1
   U file2
   U file3
   --- debugmergestate ---
-  * version 2 records
-  local: 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 13910f48cf7bdb2a0ba6e24b4900e4fdd5739dd4
+  other (merge rev): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
-  file extras: file3 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file3 (record type "F", state "u", hash d5b0a58bc47161b1b8a831084b366f757c4f0b11)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file3 (state "u")
     local path: file3 (flags "")
     ancestor path: file3 (node 2661d26c649684b482d10f91960cc3db683c38b4)
     other path: file3 (node a2644c43e210356772c7772a8674544a62e06beb)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   <<<<<<< working copy: 13910f48cf7b - test: changed file1, removed file2, chan...
   changed2
   ||||||| base
   =======
   changed1
   >>>>>>> merge rev:    10f9a0a634e8 - test: removed file1, changed file2, chan...
 
 Exercise transitions between local, other, fail and prompt, and make sure the
 dirstate stays consistent. (Compare with each other and to the above
 invocations.)
 
   $ testtransitions() {
   >     # this traversal order covers every transition
   >     tools="local other prompt local fail other local prompt other fail prompt fail local"
   >     lasttool="merge3"
   >     for tool in $tools; do
   >         echo "=== :$lasttool -> :$tool ==="
   >         ref="$TESTTMP/$tool.status"
   >         hg resolve --unmark --all
   >         hg resolve --tool ":$tool" --all --config ui.interactive=True
   >         status > "$TESTTMP/compare.status" 2>&1
   >         echo '--- diff of status ---'
   >         if cmp "$TESTTMP/$tool.status" "$TESTTMP/compare.status" || diff -U8 "$TESTTMP/$tool.status" "$TESTTMP/compare.status"; then
   >             echo '(status identical)'
   >         fi
   >         lasttool="$tool"
   >         echo
   >     done
   > }
 
   $ testtransitions
   === :merge3 -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :prompt ===
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   file 'file3' needs to be resolved.
   You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :prompt ===
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   file 'file3' needs to be resolved.
   You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :prompt ===
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   file 'file3' needs to be resolved.
   You can keep (l)ocal [working copy], take (o)ther [merge rev], or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
 
 
 Non-interactive linear update
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 -y
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   1 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ status
   --- status ---
   A file1
   C file2
   C file3
   --- resolve --list ---
   U file1
   U file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
 
 Choose local versions of files
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 --tool :local
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   $ status 2>&1 | tee $TESTTMP/local.status
   --- status ---
   file2: * (glob)
   A file1
   C file3
   --- resolve --list ---
   R file1
   R file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   *** file2 does not exist
   --- file3 ---
   3
   changed1
 
 Choose other versions of files
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 --tool :other
   1 files updated, 1 files merged, 1 files removed, 0 files unresolved
   $ status 2>&1 | tee $TESTTMP/other.status
   --- status ---
   file1: * (glob)
   C file2
   C file3
   --- resolve --list ---
   R file1
   R file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "r", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "r")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   *** file1 does not exist
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
 
 Fail
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 --tool :fail
   1 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ status 2>&1 | tee $TESTTMP/fail.status
   --- status ---
   A file1
   C file2
   C file3
   --- resolve --list ---
   U file1
   U file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
 
 Force prompts with no input
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 --config ui.interactive=True --tool :prompt
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   1 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ status 2>&1 | tee $TESTTMP/prompt.status
   --- status ---
   A file1
   C file2
   C file3
   --- resolve --list ---
   U file1
   U file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
   $ cmp $TESTTMP/fail.status $TESTTMP/prompt.status || diff -U8 $TESTTMP/fail.status $TESTTMP/prompt.status
 
 Choose to merge all files
 
   $ hg co -C 0
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo changed >> file1
   $ hg rm file2
   $ hg update 1 --tool :merge3
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   1 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ status
   --- status ---
   A file1
   C file2
   C file3
   --- resolve --list ---
   U file1
   U file2
   --- debugmergestate ---
-  * version 2 records
-  local: ab57bf49aa276a22d35a473592d4c34b5abc3eff
-  other: 10f9a0a634e82080907e62f075ab119cbc565ea6
-  labels:
-    local: working copy
-    other: destination
-  file extras: file1 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file1 (record type "C", state "u", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  other (destination): 10f9a0a634e82080907e62f075ab119cbc565ea6
+  file: file1 (state "u")
     local path: file1 (flags "")
     ancestor path: file1 (node b8e02f6433738021a065f94175c7cd23db5f05be)
-    other path: file1 (node null)
-  file extras: file2 (ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff)
-  file: file2 (record type "C", state "u", hash null)
+    other path: file1 (node 0000000000000000000000000000000000000000)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 5d9299349fc01ddd25d0070d149b124d8f10411e)
     other path: file2 (node e7c1328648519852e723de86c0c0525acd779257)
+    extra: ancestorlinknode = ab57bf49aa276a22d35a473592d4c34b5abc3eff
   --- file1 ---
   1
   changed
   --- file2 ---
   2
   changed
   --- file3 ---
   3
   changed1
 
 Test transitions between different merge tools
 
   $ testtransitions
   === :merge3 -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :prompt ===
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :local -> :prompt ===
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :other ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   
   === :other -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :prompt ===
   file 'file1' was deleted in other [destination] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? 
   file 'file2' was deleted in local [working copy] but was modified in other [destination].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? 
   --- diff of status ---
   (status identical)
   
   === :prompt -> :fail ===
   --- diff of status ---
   (status identical)
   
   === :fail -> :local ===
   (no more unresolved files)
   --- diff of status ---
   (status identical)
   

tests/test-rebase-abort.t

@@ -1,525 +1,511 b''
 #testcases abortcommand abortflag
 #testcases continuecommand continueflag
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > rebase=
   > 
   > [phases]
   > publish=False
   > 
   > [alias]
   > tglog = log -G --template "{rev}:{phase} '{desc}' {branches}\n"
   > EOF
 
 #if abortflag
   $ cat >> $HGRCPATH <<EOF
   > [alias]
   > abort = rebase --abort
   > EOF
 #endif
 
 #if continueflag
   $ cat >> $HGRCPATH <<EOF
   > [alias]
   > continue = rebase --continue
   > EOF
 #endif
 
   $ hg init a
   $ cd a
 
   $ touch .hg/rebasestate
   $ hg sum
   parent: -1:000000000000 tip (empty repository)
   branch: default
   commit: (clean)
   update: (current)
   abort: .hg/rebasestate is incomplete
   [255]
   $ rm .hg/rebasestate
 
   $ echo c1 > common
   $ hg add common
   $ hg ci -m C1
 
   $ echo c2 >> common
   $ hg ci -m C2
 
   $ echo c3 >> common
   $ hg ci -m C3
 
   $ hg up -q -C 1
 
   $ echo l1 >> extra
   $ hg add extra
   $ hg ci -m L1
   created new head
 
   $ sed -e 's/c2/l2/' common > common.new
   $ mv common.new common
   $ hg ci -m L2
 
   $ hg phase --force --secret 2
 
   $ hg tglog
   @  4:draft 'L2'
   |
   o  3:draft 'L1'
   |
   | o  2:secret 'C3'
   |/
   o  1:draft 'C2'
   |
   o  0:draft 'C1'
   
 
 Conflicting rebase:
 
   $ hg rebase -s 3 -d 2
   rebasing 3:3163e20567cc "L1"
   rebasing 4:46f0b057b5c0 "L2" (tip)
   merging common
   warning: conflicts while merging common! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
 Insert unsupported advisory merge record:
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -x
   $ hg debugmergestate
-  * version 2 records
-  local: 3e046f2ecedb793b97ed32108086edd1a162f8bc
-  other: 46f0b057b5c061d276b91491c22151f78698abd2
-  labels:
-    local: dest
-    other: source
-  unrecognized entry: x	advisory record
-  file extras: common (ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c)
-  file: common (record type "F", state "u", hash 94c8c21d08740f5da9eaa38d1f175c592692f0d1)
+  local (dest): 3e046f2ecedb793b97ed32108086edd1a162f8bc
+  other (source): 46f0b057b5c061d276b91491c22151f78698abd2
+  file: common (state "u")
     local path: common (flags "")
     ancestor path: common (node de0a666fdd9c1a0b0698b90d85064d8bd34f74b6)
     other path: common (node 2f6411de53677f6f1048fef5bf888d67a342e0a5)
+    extra: ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c
   $ hg resolve -l
   U common
 
 Insert unsupported mandatory merge record:
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -X
   $ hg debugmergestate
-  * version 2 records
-  local: 3e046f2ecedb793b97ed32108086edd1a162f8bc
-  other: 46f0b057b5c061d276b91491c22151f78698abd2
-  labels:
-    local: dest
-    other: source
-  file extras: common (ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c)
-  file: common (record type "F", state "u", hash 94c8c21d08740f5da9eaa38d1f175c592692f0d1)
-    local path: common (flags "")
-    ancestor path: common (node de0a666fdd9c1a0b0698b90d85064d8bd34f74b6)
-    other path: common (node 2f6411de53677f6f1048fef5bf888d67a342e0a5)
-  unrecognized entry: X	mandatory record
+  abort: unsupported merge state records: X
+  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
+  [255]
   $ hg resolve -l
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
   $ hg resolve -ma
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
 
 Abort (should clear out unsupported merge state):
 
 #if abortcommand
 when in dry-run mode
   $ hg abort --dry-run
   rebase in progress, will be aborted
 #endif
 
   $ hg abort
   saved backup bundle to $TESTTMP/a/.hg/strip-backup/3e046f2ecedb-6beef7d5-backup.hg
   rebase aborted
   $ hg debugmergestate
   no merge state found
 
   $ hg tglog
   @  4:draft 'L2'
   |
   o  3:draft 'L1'
   |
   | o  2:secret 'C3'
   |/
   o  1:draft 'C2'
   |
   o  0:draft 'C1'
   
 Test safety for inconsistent rebase state, which may be created (and
 forgotten) by Mercurial earlier than 2.7. This emulates Mercurial
 earlier than 2.7 by renaming ".hg/rebasestate" temporarily.
 
   $ hg rebase -s 3 -d 2
   rebasing 3:3163e20567cc "L1"
   rebasing 4:46f0b057b5c0 "L2" (tip)
   merging common
   warning: conflicts while merging common! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
   $ mv .hg/rebasestate .hg/rebasestate.back
   $ hg update --quiet --clean 2
   $ hg --config extensions.mq= strip --quiet "destination()"
   $ mv .hg/rebasestate.back .hg/rebasestate
 
   $ hg continue
   abort: cannot continue inconsistent rebase
   (use "hg rebase --abort" to clear broken state)
   [255]
   $ hg summary | grep '^rebase: '
   rebase: (use "hg rebase --abort" to clear broken state)
   $ hg abort
   rebase aborted (no revision is removed, only broken state is cleared)
 
   $ cd ..
 
 
 Construct new repo:
 
   $ hg init b
   $ cd b
 
   $ echo a > a
   $ hg ci -Am A
   adding a
 
   $ echo b > b
   $ hg ci -Am B
   adding b
 
   $ echo c > c
   $ hg ci -Am C
   adding c
 
   $ hg up -q 0
 
   $ echo b > b
   $ hg ci -Am 'B bis'
   adding b
   created new head
 
   $ echo c1 > c
   $ hg ci -Am C1
   adding c
 
   $ hg phase --force --secret 1
   $ hg phase --public 1
 
 Rebase and abort without generating new changesets:
 
   $ hg tglog
   @  4:draft 'C1'
   |
   o  3:draft 'B bis'
   |
   | o  2:secret 'C'
   | |
   | o  1:public 'B'
   |/
   o  0:public 'A'
   
   $ hg rebase -b 4 -d 2
   rebasing 3:a6484957d6b9 "B bis"
   note: not rebasing 3:a6484957d6b9 "B bis", its destination already has all its changes
   rebasing 4:145842775fec "C1" (tip)
   merging c
   warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
   $ hg tglog
   %  4:draft 'C1'
   |
   o  3:draft 'B bis'
   |
   | @  2:secret 'C'
   | |
   | o  1:public 'B'
   |/
   o  0:public 'A'
   
   $ hg rebase -a
   rebase aborted
 
   $ hg tglog
   @  4:draft 'C1'
   |
   o  3:draft 'B bis'
   |
   | o  2:secret 'C'
   | |
   | o  1:public 'B'
   |/
   o  0:public 'A'
   
 
   $ cd ..
 
 rebase abort should not leave working copy in a merge state if tip-1 is public
 (issue4082)
 
   $ hg init abortpublic
   $ cd abortpublic
   $ echo a > a && hg ci -Aqm a
   $ hg book master
   $ hg book foo
   $ echo b > b && hg ci -Aqm b
   $ hg up -q master
   $ echo c > c && hg ci -Aqm c
   $ hg phase -p -r .
   $ hg up -q foo
   $ echo C > c && hg ci -Aqm C
   $ hg log -G --template "{rev} {desc} {bookmarks}"
   @  3 C foo
   |
   | o  2 c master
   | |
   o |  1 b
   |/
   o  0 a
   
 
   $ hg rebase -d master -r foo
   rebasing 3:6c0f977a22d8 "C" (foo tip)
   merging c
   warning: conflicts while merging c! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
   $ hg abort
   rebase aborted
   $ hg log -G --template "{rev} {desc} {bookmarks}"
   @  3 C foo
   |
   | o  2 c master
   | |
   o |  1 b
   |/
   o  0 a
   
   $ cd ..
 
 Make sure we don't clobber changes in the working directory when the
 user has somehow managed to update to a different revision (issue4009)
 
   $ hg init noupdate
   $ cd noupdate
   $ hg book @
   $ echo original > a
   $ hg add a
   $ hg commit -m a
   $ echo x > b
   $ hg add b
   $ hg commit -m b1
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   (leaving bookmark @)
   $ hg book foo
   $ echo y > b
   $ hg add b
   $ hg commit -m b2
   created new head
 
   $ hg rebase -d @ -b foo --tool=internal:fail
   rebasing 2:070cf4580bb5 "b2" (foo tip)
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
   $ mv .hg/rebasestate ./ # so we're allowed to hg up like in mercurial <2.6.3
   $ hg up -C 0            # user does other stuff in the repo
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
   $ mv rebasestate .hg/   # user upgrades to 2.7
 
   $ echo new > a
   $ hg up 1               # user gets an error saying to run hg rebase --abort
   abort: rebase in progress
   (use 'hg rebase --continue' or 'hg rebase --abort')
   [255]
 
   $ cat a
   new
   $ hg abort
   rebase aborted
   $ cat a
   new
 
   $ cd ..
 
 test aborting an interrupted series (issue5084)
   $ hg init interrupted
   $ cd interrupted
   $ touch base
   $ hg add base
   $ hg commit -m base
   $ touch a
   $ hg add a
   $ hg commit -m a
   $ echo 1 > a
   $ hg commit -m 1
   $ touch b
   $ hg add b
   $ hg commit -m b
   $ echo 2 >> a
   $ hg commit -m c
   $ touch d
   $ hg add d
   $ hg commit -m d
   $ hg co -q 1
   $ hg rm a
   $ hg commit -m no-a
   created new head
   $ hg co 0
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg log -G --template "{rev} {desc} {bookmarks}"
   o  6 no-a
   |
   | o  5 d
   | |
   | o  4 c
   | |
   | o  3 b
   | |
   | o  2 1
   |/
   o  1 a
   |
   @  0 base
   
   $ hg --config extensions.n=$TESTDIR/failfilemerge.py rebase -s 3 -d tip
   rebasing 3:3a71550954f1 "b"
   rebasing 4:e80b69427d80 "c"
   abort: ^C
   [255]
 
 New operations are blocked with the correct state message
 
   $ find .hg -name '*state' -prune | sort
   .hg/dirstate
   .hg/merge/state
   .hg/rebasestate
   .hg/undo.backup.dirstate
   .hg/undo.dirstate
   .hg/updatestate
 
   $ hg rebase -s 3 -d tip
   abort: rebase in progress
   (use 'hg rebase --continue' or 'hg rebase --abort')
   [255]
   $ hg up .
   abort: rebase in progress
   (use 'hg rebase --continue' or 'hg rebase --abort')
   [255]
   $ hg up -C .
   abort: rebase in progress
   (use 'hg rebase --continue' or 'hg rebase --abort')
   [255]
 
   $ hg graft 3
   abort: rebase in progress
   (use 'hg rebase --continue' or 'hg rebase --abort')
   [255]
 
   $ hg abort
   saved backup bundle to $TESTTMP/interrupted/.hg/strip-backup/3d8812cf300d-93041a90-backup.hg
   rebase aborted
   $ hg log -G --template "{rev} {desc} {bookmarks}"
   o  6 no-a
   |
   | o  5 d
   | |
   | o  4 c
   | |
   | o  3 b
   | |
   | o  2 1
   |/
   o  1 a
   |
   @  0 base
   
   $ hg summary
   parent: 0:df4f53cec30a 
    base
   branch: default
   commit: (clean)
   update: 6 new changesets (update)
   phases: 7 draft
 
   $ cd ..
 On the other hand, make sure we *do* clobber changes whenever we
 haven't somehow managed to update the repo to a different revision
 during a rebase (issue4661)
 
   $ hg ini yesupdate
   $ cd yesupdate
   $ echo "initial data" > foo.txt
   $ hg add
   adding foo.txt
   $ hg ci -m "initial checkin"
   $ echo "change 1" > foo.txt
   $ hg ci -m "change 1"
   $ hg up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo "conflicting change 1" > foo.txt
   $ hg ci -m "conflicting 1"
   created new head
   $ echo "conflicting change 2" > foo.txt
   $ hg ci -m "conflicting 2"
 
   $ hg rebase -d 1 --tool 'internal:fail'
   rebasing 2:e4ea5cdc9789 "conflicting 1"
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
   $ hg abort
   rebase aborted
   $ hg summary
   parent: 3:b16646383533 tip
    conflicting 2
   branch: default
   commit: (clean)
   update: 1 new changesets, 2 branch heads (merge)
   phases: 4 draft
   $ cd ..
 
 test aborting a rebase succeeds after rebasing with skipped commits onto a
 public changeset (issue4896)
 
   $ hg init succeedonpublic
   $ cd succeedonpublic
   $ echo 'content' > root
   $ hg commit -A -m 'root' -q
 
 set up public branch
   $ echo 'content' > disappear
   $ hg commit -A -m 'disappear public' -q
 commit will cause merge conflict on rebase
   $ echo '' > root
   $ hg commit -m 'remove content public' -q
   $ hg phase --public
 
 setup the draft branch that will be rebased onto public commit
   $ hg up -r 0 -q
   $ echo 'content' > disappear
 commit will disappear
   $ hg commit -A -m 'disappear draft' -q
   $ echo 'addedcontADDEDentadded' > root
 commit will cause merge conflict on rebase
   $ hg commit -m 'add content draft' -q
 
   $ hg rebase -d 'public()' --tool :merge -q
   note: not rebasing 3:0682fd3dabf5 "disappear draft", its destination already has all its changes
   warning: conflicts while merging root! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
   $ hg abort
   rebase aborted
   $ cd ..
 

tests/test-resolve.t

@@ -1,803 +1,795 b''
 test that a commit clears the merge state.
 
   $ hg init repo
   $ cd repo
 
   $ echo foo > file1
   $ echo foo > file2
   $ hg commit -Am 'add files'
   adding file1
   adding file2
 
   $ echo bar >> file1
   $ echo bar >> file2
   $ hg commit -Am 'append bar to files'
 
 create a second head with conflicting edits
 
   $ hg up -C 0
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo baz >> file1
   $ echo baz >> file2
   $ hg commit -Am 'append baz to files'
   created new head
 
 create a third head with no conflicting edits
   $ hg up -qC 0
   $ echo foo > file3
   $ hg commit -Am 'add non-conflicting file'
   adding file3
   created new head
 
 failing merge
 
   $ hg up -qC 2
   $ hg merge --tool=internal:fail 1
   0 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
 resolve -l should contain unresolved entries
 
   $ hg resolve -l
   U file1
   U file2
 
   $ hg resolve -l --no-status
   file1
   file2
 
 resolving an unknown path should emit a warning, but not for -l
 
   $ hg resolve -m does-not-exist
   arguments do not match paths that need resolving
   $ hg resolve -l does-not-exist
 
 tell users how they could have used resolve
 
   $ mkdir nested
   $ cd nested
   $ hg resolve -m file1
   arguments do not match paths that need resolving
   (try: hg resolve -m path:file1)
   $ hg resolve -m file1 filez
   arguments do not match paths that need resolving
   (try: hg resolve -m path:file1 path:filez)
   $ hg resolve -m path:file1 path:filez
   $ hg resolve -l
   R file1
   U file2
   $ hg resolve -l --config ui.relative-paths=yes
   R ../file1
   U ../file2
   $ hg resolve --re-merge filez file2
   arguments do not match paths that need resolving
   (try: hg resolve --re-merge path:filez path:file2)
   $ hg resolve -m filez file2
   arguments do not match paths that need resolving
   (try: hg resolve -m path:filez path:file2)
   $ hg resolve -m path:filez path:file2
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 
 cleanup
   $ hg resolve -u
   $ cd ..
   $ rmdir nested
 
 don't allow marking or unmarking driver-resolved files
 
   $ cat > $TESTTMP/markdriver.py << EOF
   > '''mark and unmark files as driver-resolved'''
   > from mercurial import (
   >    merge,
   >    pycompat,
   >    registrar,
   >    scmutil,
   > )
   > cmdtable = {}
   > command = registrar.command(cmdtable)
   > @command(b'markdriver',
   >   [(b'u', b'unmark', None, b'')],
   >   b'FILE...')
   > def markdriver(ui, repo, *pats, **opts):
   >     wlock = repo.wlock()
   >     opts = pycompat.byteskwargs(opts)
   >     try:
   >         ms = merge.mergestate.read(repo)
   >         m = scmutil.match(repo[None], pats, opts)
   >         for f in ms:
   >             if not m(f):
   >                 continue
   >             if not opts[b'unmark']:
   >                 ms.mark(f, b'd')
   >             else:
   >                 ms.mark(f, b'u')
   >         ms.commit()
   >     finally:
   >         wlock.release()
   > EOF
   $ hg --config extensions.markdriver=$TESTTMP/markdriver.py markdriver file1
   $ hg resolve --list
   D file1
   U file2
   $ hg resolve --mark file1
   not marking file1 as it is driver-resolved
 this should not print out file1
   $ hg resolve --mark --all
   (no more unresolved files -- run "hg resolve --all" to conclude)
   $ hg resolve --mark 'glob:file*'
   (no more unresolved files -- run "hg resolve --all" to conclude)
   $ hg resolve --list
   D file1
   R file2
   $ hg resolve --unmark file1
   not unmarking file1 as it is driver-resolved
   (no more unresolved files -- run "hg resolve --all" to conclude)
   $ hg resolve --unmark --all
   $ hg resolve --list
   D file1
   U file2
   $ hg --config extensions.markdriver=$TESTTMP/markdriver.py markdriver --unmark file1
   $ hg resolve --list
   U file1
   U file2
 
 resolve the failure
 
   $ echo resolved > file1
   $ hg resolve -m file1
 
 resolve -l should show resolved file as resolved
 
   $ hg resolve -l
   R file1
   U file2
 
   $ hg resolve -l -Tjson
   [
    {
     "mergestatus": "R",
     "path": "file1"
    },
    {
     "mergestatus": "U",
     "path": "file2"
    }
   ]
 
   $ hg resolve -l -T '{path} {mergestatus} {status} {p1rev} {p2rev}\n'
   file1 R M 2 1
   file2 U M 2 1
 
 resolve -m without paths should mark all resolved
 
   $ hg resolve -m
   (no more unresolved files)
   $ hg commit -m 'resolved'
 
 resolve -l should be empty after commit
 
   $ hg resolve -l
 
   $ hg resolve -l -Tjson
   [
   ]
 
 resolve --all should abort when no merge in progress
 
   $ hg resolve --all
   abort: resolve command not applicable when not merging
   [255]
 
 resolve -m should abort when no merge in progress
 
   $ hg resolve -m
   abort: resolve command not applicable when not merging
   [255]
 
 can not update or merge when there are unresolved conflicts
 
   $ hg up -qC 0
   $ echo quux >> file1
   $ hg up 1
   merging file1
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   1 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges
   [1]
   $ hg up 0
   abort: outstanding merge conflicts
   (use 'hg resolve' to resolve)
   [255]
   $ hg merge 2
   abort: outstanding merge conflicts
   (use 'hg resolve' to resolve)
   [255]
   $ hg merge --force 2
   abort: outstanding merge conflicts
   (use 'hg resolve' to resolve)
   [255]
 
 set up conflict-free merge
 
   $ hg up -qC 3
   $ hg merge 1
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
 resolve --all should do nothing in merge without conflicts
   $ hg resolve --all
   (no more unresolved files)
 
 resolve -m should do nothing in merge without conflicts
 
   $ hg resolve -m
   (no more unresolved files)
 
 get back to conflicting state
 
   $ hg up -qC 2
   $ hg merge --tool=internal:fail 1
   0 files updated, 0 files merged, 0 files removed, 2 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
 
 resolve without arguments should suggest --all
   $ hg resolve
   abort: no files or directories specified
   (use --all to re-merge all unresolved files)
   [255]
 
 resolve --all should re-merge all unresolved files
   $ hg resolve --all
   merging file1
   merging file2
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')
   [1]
   $ cat file1.orig
   foo
   baz
   $ cat file2.orig
   foo
   baz
 
 .orig files should exists where specified
   $ hg resolve --all --verbose --config 'ui.origbackuppath=.hg/origbackups'
   merging file1
   creating directory: $TESTTMP/repo/.hg/origbackups
   merging file2
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')
   [1]
   $ ls .hg/origbackups
   file1
   file2
   $ grep '<<<' file1 > /dev/null
   $ grep '<<<' file2 > /dev/null
 
 resolve <file> should re-merge file
   $ echo resolved > file1
   $ hg resolve -q file1
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   [1]
   $ grep '<<<' file1 > /dev/null
 
 test .orig behavior with resolve
 
   $ hg resolve -q file1 --tool "sh -c 'f --dump \"$TESTTMP/repo/file1.orig\"'"
   $TESTTMP/repo/file1.orig:
   >>>
   foo
   baz
   <<<
 
 resolve <file> should do nothing if 'file' was marked resolved
   $ echo resolved > file1
   $ hg resolve -m file1
   $ hg resolve -q file1
   $ cat file1
   resolved
 
 insert unsupported advisory merge record
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -x
   $ hg debugmergestate
-  * version 2 records
-  local: 57653b9f834a4493f7240b0681efcb9ae7cab745
-  other: dc77451844e37f03f5c559e3b8529b2b48d381d1
-  labels:
-    local: working copy
-    other: merge rev
-  unrecognized entry: x	advisory record
-  file extras: file1 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)
-  file: file1 (record type "F", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
+  local (working copy): 57653b9f834a4493f7240b0681efcb9ae7cab745
+  other (merge rev): dc77451844e37f03f5c559e3b8529b2b48d381d1
+  file: file1 (state "r")
     local path: file1 (flags "")
     ancestor path: file1 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)
     other path: file1 (node 6f4310b00b9a147241b071a60c28a650827fb03d)
-  file extras: file2 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)
-  file: file2 (record type "F", state "u", hash cb99b709a1978bd205ab9dfd4c5aaa1fc91c7523)
+    extra: ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac
+  file: file2 (state "u")
     local path: file2 (flags "")
     ancestor path: file2 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)
     other path: file2 (node 6f4310b00b9a147241b071a60c28a650827fb03d)
+    extra: ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac
   $ hg resolve -l
   R file1
   U file2
 
+test json output
+
+  $ hg debugmergestate -T json
+  [
+   {
+    "commits": [{"label": "working copy", "name": "local", "node": "57653b9f834a4493f7240b0681efcb9ae7cab745"}, {"label": "merge rev", "name": "other", "node": "dc77451844e37f03f5c559e3b8529b2b48d381d1"}],
+    "files": [{"ancestor_node": "2ed2a3912a0b24502043eae84ee4b279c18b90dd", "ancestor_path": "file1", "extras": [{"key": "ancestorlinknode", "value": "99726c03216e233810a2564cbc0adfe395007eac"}], "local_flags": "", "local_key": "60b27f004e454aca81b0480209cce5081ec52390", "local_path": "file1", "other_node": "6f4310b00b9a147241b071a60c28a650827fb03d", "other_path": "file1", "path": "file1", "state": "r"}, {"ancestor_node": "2ed2a3912a0b24502043eae84ee4b279c18b90dd", "ancestor_path": "file2", "extras": [{"key": "ancestorlinknode", "value": "99726c03216e233810a2564cbc0adfe395007eac"}], "local_flags": "", "local_key": "cb99b709a1978bd205ab9dfd4c5aaa1fc91c7523", "local_path": "file2", "other_node": "6f4310b00b9a147241b071a60c28a650827fb03d", "other_path": "file2", "path": "file2", "state": "u"}]
+   }
+  ]
+
+
 insert unsupported mandatory merge record
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -X
   $ hg debugmergestate
-  * version 2 records
-  local: 57653b9f834a4493f7240b0681efcb9ae7cab745
-  other: dc77451844e37f03f5c559e3b8529b2b48d381d1
-  labels:
-    local: working copy
-    other: merge rev
-  file extras: file1 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)
-  file: file1 (record type "F", state "r", hash 60b27f004e454aca81b0480209cce5081ec52390)
-    local path: file1 (flags "")
-    ancestor path: file1 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)
-    other path: file1 (node 6f4310b00b9a147241b071a60c28a650827fb03d)
-  file extras: file2 (ancestorlinknode = 99726c03216e233810a2564cbc0adfe395007eac)
-  file: file2 (record type "F", state "u", hash cb99b709a1978bd205ab9dfd4c5aaa1fc91c7523)
-    local path: file2 (flags "")
-    ancestor path: file2 (node 2ed2a3912a0b24502043eae84ee4b279c18b90dd)
-    other path: file2 (node 6f4310b00b9a147241b071a60c28a650827fb03d)
-  unrecognized entry: X	mandatory record
+  abort: unsupported merge state records: X
+  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
+  [255]
   $ hg resolve -l
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
   $ hg resolve -ma
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
   [255]
   $ hg summary
   warning: merge state has unsupported record types: X
   parent: 2:57653b9f834a 
    append baz to files
   parent: 1:dc77451844e3 
    append bar to files
   branch: default
   commit: 2 modified, 2 unknown (merge)
   update: 2 new changesets (update)
   phases: 5 draft
 
 update --clean shouldn't abort on unsupported records
 
   $ hg up -qC 1
   $ hg debugmergestate
   no merge state found
 
 test crashed merge with empty mergestate
 
   $ mkdir .hg/merge
   $ touch .hg/merge/state
 
 resolve -l should be empty
 
   $ hg resolve -l
 
 resolve -m can be configured to look for remaining conflict markers
   $ hg up -qC 2
   $ hg merge -q --tool=internal:merge 1
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging file2! (edit, then use 'hg resolve --mark')
   [1]
   $ hg resolve -l
   U file1
   U file2
   $ echo 'remove markers' > file1
   $ hg --config commands.resolve.mark-check=abort resolve -m
   warning: the following files still have conflict markers:
     file2
   abort: conflict markers detected
   (use --all to mark anyway)
   [255]
   $ hg resolve -l
   U file1
   U file2
 Try with --all from the hint
   $ hg --config commands.resolve.mark-check=abort resolve -m --all
   warning: the following files still have conflict markers:
     file2
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 Test option value 'warn'
   $ hg resolve --unmark
   $ hg resolve -l
   U file1
   U file2
   $ hg --config commands.resolve.mark-check=warn resolve -m
   warning: the following files still have conflict markers:
     file2
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 If the file is already marked as resolved, we don't warn about it
   $ hg resolve --unmark file1
   $ hg resolve -l
   U file1
   R file2
   $ hg --config commands.resolve.mark-check=warn resolve -m
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 If the user passes an invalid value, we treat it as 'none'.
   $ hg resolve --unmark
   $ hg resolve -l
   U file1
   U file2
   $ hg --config commands.resolve.mark-check=nope resolve -m
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 Test explicitly setting the option to 'none'
   $ hg resolve --unmark
   $ hg resolve -l
   U file1
   U file2
   $ hg --config commands.resolve.mark-check=none resolve -m
   (no more unresolved files)
   $ hg resolve -l
   R file1
   R file2
 Test with marking an explicit file as resolved, this should not abort (since
 there's no --force flag, we have no way of combining --all with a filename)
   $ hg resolve --unmark
   $ hg resolve -l
   U file1
   U file2
 (This downgrades to a warning since an explicit file was specified).
   $ hg --config commands.resolve.mark-check=abort resolve -m file2
   warning: the following files still have conflict markers:
     file2
   $ hg resolve -l
   U file1
   R file2
 Testing the --re-merge flag
   $ hg resolve --unmark file1
   $ hg resolve -l
   U file1
   R file2
   $ hg resolve --mark --re-merge
   abort: too many actions specified
   [255]
   $ hg resolve --re-merge --all
   merging file1
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   [1]
 Explicit re-merge
   $ hg resolve --unmark file1
   $ hg resolve --config commands.resolve.explicit-re-merge=1 --all
   abort: no action specified
   (use --mark, --unmark, --list or --re-merge)
   [255]
   $ hg resolve --config commands.resolve.explicit-re-merge=1 --re-merge --all
   merging file1
   warning: conflicts while merging file1! (edit, then use 'hg resolve --mark')
   [1]
 
   $ cd ..
 
 ======================================================
 Test 'hg resolve' confirm config option functionality |
 ======================================================
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > rebase=
   > EOF
 
   $ hg init repo2
   $ cd repo2
 
   $ echo boss > boss
   $ hg ci -Am "add boss"
   adding boss
 
   $ for emp in emp1 emp2 emp3; do echo work > $emp; done;
   $ hg ci -Aqm "added emp1 emp2 emp3"
 
   $ hg up 0
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
 
   $ for emp in emp1 emp2 emp3; do echo nowork > $emp; done;
   $ hg ci -Aqm "added lazy emp1 emp2 emp3"
 
   $ hg log -GT "{rev} {node|short} {firstline(desc)}\n"
   @  2 0acfd4a49af0 added lazy emp1 emp2 emp3
   |
   | o  1 f30f98a8181f added emp1 emp2 emp3
   |/
   o  0 88660038d466 add boss
   
   $ hg rebase -s 1 -d 2
   rebasing 1:f30f98a8181f "added emp1 emp2 emp3"
   merging emp1
   merging emp2
   merging emp3
   warning: conflicts while merging emp1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp2! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp3! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see hg resolve, then hg rebase --continue)
   [1]
 
 Test when commands.resolve.confirm config option is not set:
 ===========================================================
   $ hg resolve --all
   merging emp1
   merging emp2
   merging emp3
   warning: conflicts while merging emp1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp2! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp3! (edit, then use 'hg resolve --mark')
   [1]
 
 Test when config option is set:
 ==============================
   $ cat >> .hg/hgrc << EOF
   > [ui]
   > interactive = True
   > [commands]
   > resolve.confirm = True
   > EOF
 
   $ hg resolve
   abort: no files or directories specified
   (use --all to re-merge all unresolved files)
   [255]
   $ hg resolve --all << EOF
   > n
   > EOF
   re-merge all unresolved files (yn)? n
   abort: user quit
   [255]
 
   $ hg resolve --all << EOF
   > y
   > EOF
   re-merge all unresolved files (yn)? y
   merging emp1
   merging emp2
   merging emp3
   warning: conflicts while merging emp1! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp2! (edit, then use 'hg resolve --mark')
   warning: conflicts while merging emp3! (edit, then use 'hg resolve --mark')
   [1]
 
 Test that commands.resolve.confirm respect --mark option (only when no patterns args are given):
 ===============================================================================================
 
   $ hg resolve -m emp1
   $ hg resolve -l
   R emp1
   U emp2
   U emp3
 
   $ hg resolve -m << EOF
   > n
   > EOF
   mark all unresolved files as resolved (yn)? n
   abort: user quit
   [255]
 
   $ hg resolve -m << EOF
   > y
   > EOF
   mark all unresolved files as resolved (yn)? y
   (no more unresolved files)
   continue: hg rebase --continue
   $ hg resolve -l
   R emp1
   R emp2
   R emp3
 
 Test that commands.resolve.confirm respect --unmark option (only when no patterns args are given):
 =================================================================================================
 
   $ hg resolve -u emp1
 
   $ hg resolve -l
   U emp1
   R emp2
   R emp3
 
   $ hg resolve -u << EOF
   > n
   > EOF
   mark all resolved files as unresolved (yn)? n
   abort: user quit
   [255]
 
   $ hg resolve -m << EOF
   > y
   > EOF
   mark all unresolved files as resolved (yn)? y
   (no more unresolved files)
   continue: hg rebase --continue
 
   $ hg resolve -l
   R emp1
   R emp2
   R emp3
 
   $ hg rebase --abort
   rebase aborted
 
 Done with commands.resolve.confirm tests:
   $ cd ..
 
 Test that commands.resolve.mark-check works even if there are deleted files:
   $ hg init resolve-deleted
   $ cd resolve-deleted
   $ echo r0 > file1
   $ hg ci -qAm r0
   $ echo r1 > file1
   $ hg ci -qm r1
   $ hg co -qr 0
   $ hg rm file1
   $ hg ci -qm "r2 (delete file1)"
 
 (At this point we have r0 creating file1, and sibling commits r1 and r2, which
  modify and delete file1, respectively)
 
   $ hg merge -r 1
   file 'file1' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ hg resolve --list
   U file1
 Because we left it as 'unresolved' the file should still exist.
   $ [ -f file1 ] || echo "File does not exist?"
 BC behavior: `hg resolve --mark` accepts that the file is still there, and
 doesn't have a problem with this situation.
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is still there:
   $ [ -f file1 ] || echo "File does not exist?"
 Let's check mark-check=warn:
   $ hg resolve --unmark file1
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is still there:
   $ [ -f file1 ] || echo "File does not exist?"
 Let's resolve the issue by deleting the file via `hg resolve`
   $ hg resolve --unmark file1
   $ echo 'd' | hg resolve file1 --config ui.interactive=1
   file 'file1' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? d
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is deleted:
   $ [ -f file1 ] && echo "File still exists?" || true
 Doing `hg resolve --mark` doesn't break now that the file is missing:
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
 Resurrect the file, and delete it outside of hg:
   $ hg resolve --unmark file1
   $ hg resolve file1
   file 'file1' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   [1]
   $ [ -f file1 ] || echo "File does not exist?"
   $ hg resolve --list
   U file1
   $ rm file1
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --list
   R file1
   $ hg resolve --unmark file1
   $ hg resolve file1
   file 'file1' was deleted in local [working copy] but was modified in other [merge rev].
   You can use (c)hanged version, leave (d)eleted, or leave (u)nresolved.
   What do you want to do? u
   [1]
   $ [ -f file1 ] || echo "File does not exist?"
   $ hg resolve --list
   U file1
   $ rm file1
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
   $ hg resolve --list
   R file1
 
 
 For completeness, let's try that in the opposite direction (merging r2 into r1,
 instead of r1 into r2):
   $ hg update -qCr 1
   $ hg merge -r 2
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon
   [1]
   $ hg resolve --list
   U file1
 Because we left it as 'unresolved' the file should still exist.
   $ [ -f file1 ] || echo "File does not exist?"
 BC behavior: `hg resolve --mark` accepts that the file is still there, and
 doesn't have a problem with this situation.
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is still there:
   $ [ -f file1 ] || echo "File does not exist?"
 Let's check mark-check=warn:
   $ hg resolve --unmark file1
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is still there:
   $ [ -f file1 ] || echo "File does not exist?"
 Let's resolve the issue by deleting the file via `hg resolve`
   $ hg resolve --unmark file1
   $ echo 'd' | hg resolve file1 --config ui.interactive=1
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? d
   (no more unresolved files)
   $ hg resolve --list
   R file1
 The file is deleted:
   $ [ -f file1 ] && echo "File still exists?" || true
 Doing `hg resolve --mark` doesn't break now that the file is missing:
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
 Resurrect the file, and delete it outside of hg:
   $ hg resolve --unmark file1
   $ hg resolve file1
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   [1]
   $ [ -f file1 ] || echo "File does not exist?"
   $ hg resolve --list
   U file1
   $ rm file1
   $ hg resolve --mark --config commands.resolve.mark-check=abort
   (no more unresolved files)
   $ hg resolve --list
   R file1
   $ hg resolve --unmark file1
   $ hg resolve file1
   file 'file1' was deleted in other [merge rev] but was modified in local [working copy].
   You can use (c)hanged version, (d)elete, or leave (u)nresolved.
   What do you want to do? u
   [1]
   $ [ -f file1 ] || echo "File does not exist?"
   $ hg resolve --list
   U file1
   $ rm file1
   $ hg resolve --mark --config commands.resolve.mark-check=warn
   (no more unresolved files)
   $ hg resolve --list
   R file1
 
   $ cd ..