templatekw: reference predecessor node id as {node} in map operation

More predecessor-depending values will be populated by the next patch.

mercurial/templatekw.py

@@ -1,687 +1,687 b''
 # templatekw.py - common changeset template keywords
 #
 # Copyright 2005-2009 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
 
 from .i18n import _
 from .node import (
     hex,
     nullid,
     short,
 )
 
 from . import (
     encoding,
     error,
     hbisect,
     obsutil,
     patch,
     registrar,
     scmutil,
     util,
 )
 
 class _hybrid(object):
     """Wrapper for list or dict to support legacy template
 
     This class allows us to handle both:
     - "{files}" (legacy command-line-specific list hack) and
     - "{files % '{file}\n'}" (hgweb-style with inlining and function support)
     and to access raw values:
     - "{ifcontains(file, files, ...)}", "{ifcontains(key, extras, ...)}"
     - "{get(extras, key)}"
     - "{files|json}"
     """
 
     def __init__(self, gen, values, makemap, joinfmt):
         if gen is not None:
             self.gen = gen
         self._values = values
         self._makemap = makemap
         self.joinfmt = joinfmt
     @util.propertycache
     def gen(self):
         return self._defaultgen()
     def _defaultgen(self):
         """Generator to stringify this as {join(self, ' ')}"""
         for i, d in enumerate(self.itermaps()):
             if i > 0:
                 yield ' '
             yield self.joinfmt(d)
     def itermaps(self):
         makemap = self._makemap
         for x in self._values:
             yield makemap(x)
     def __contains__(self, x):
         return x in self._values
     def __len__(self):
         return len(self._values)
     def __iter__(self):
         return iter(self._values)
     def __getattr__(self, name):
         if name not in ('get', 'items', 'iteritems', 'iterkeys', 'itervalues',
                         'keys', 'values'):
             raise AttributeError(name)
         return getattr(self._values, name)
 
 def hybriddict(data, key='key', value='value', fmt='%s=%s', gen=None):
     """Wrap data to support both dict-like and string-like operations"""
     return _hybrid(gen, data, lambda k: {key: k, value: data[k]},
                    lambda d: fmt % (d[key], d[value]))
 
 def hybridlist(data, name, fmt='%s', gen=None):
     """Wrap data to support both list-like and string-like operations"""
     return _hybrid(gen, data, lambda x: {name: x}, lambda d: fmt % d[name])
 
 def unwraphybrid(thing):
     """Return an object which can be stringified possibly by using a legacy
     template"""
     if not util.safehasattr(thing, 'gen'):
         return thing
     return thing.gen
 
 def showdict(name, data, mapping, plural=None, key='key', value='value',
              fmt='%s=%s', separator=' '):
     c = [{key: k, value: v} for k, v in data.iteritems()]
     f = _showlist(name, c, mapping, plural, separator)
     return hybriddict(data, key=key, value=value, fmt=fmt, gen=f)
 
 def showlist(name, values, mapping, plural=None, element=None, separator=' '):
     if not element:
         element = name
     f = _showlist(name, values, mapping, plural, separator)
     return hybridlist(values, name=element, gen=f)
 
 def _showlist(name, values, mapping, plural=None, separator=' '):
     '''expand set of values.
     name is name of key in template map.
     values is list of strings or dicts.
     plural is plural of name, if not simply name + 's'.
     separator is used to join values as a string
 
     expansion works like this, given name 'foo'.
 
     if values is empty, expand 'no_foos'.
 
     if 'foo' not in template map, return values as a string,
     joined by 'separator'.
 
     expand 'start_foos'.
 
     for each value, expand 'foo'. if 'last_foo' in template
     map, expand it instead of 'foo' for last key.
 
     expand 'end_foos'.
     '''
     templ = mapping['templ']
     if not plural:
         plural = name + 's'
     if not values:
         noname = 'no_' + plural
         if noname in templ:
             yield templ(noname, **mapping)
         return
     if name not in templ:
         if isinstance(values[0], str):
             yield separator.join(values)
         else:
             for v in values:
                 yield dict(v, **mapping)
         return
     startname = 'start_' + plural
     if startname in templ:
         yield templ(startname, **mapping)
     vmapping = mapping.copy()
     def one(v, tag=name):
         try:
             vmapping.update(v)
         except (AttributeError, ValueError):
             try:
                 for a, b in v:
                     vmapping[a] = b
             except ValueError:
                 vmapping[name] = v
         return templ(tag, **vmapping)
     lastname = 'last_' + name
     if lastname in templ:
         last = values.pop()
     else:
         last = None
     for v in values:
         yield one(v)
     if last is not None:
         yield one(last, tag=lastname)
     endname = 'end_' + plural
     if endname in templ:
         yield templ(endname, **mapping)
 
 def _formatrevnode(ctx):
     """Format changeset as '{rev}:{node|formatnode}', which is the default
     template provided by cmdutil.changeset_templater"""
     repo = ctx.repo()
     if repo.ui.debugflag:
         hexfunc = hex
     else:
         hexfunc = short
     return '%d:%s' % (scmutil.intrev(ctx), hexfunc(scmutil.binnode(ctx)))
 
 def getfiles(repo, ctx, revcache):
     if 'files' not in revcache:
         revcache['files'] = repo.status(ctx.p1(), ctx)[:3]
     return revcache['files']
 
 def getlatesttags(repo, ctx, cache, pattern=None):
     '''return date, distance and name for the latest tag of rev'''
 
     cachename = 'latesttags'
     if pattern is not None:
         cachename += '-' + pattern
         match = util.stringmatcher(pattern)[2]
     else:
         match = util.always
 
     if cachename not in cache:
         # Cache mapping from rev to a tuple with tag date, tag
         # distance and tag name
         cache[cachename] = {-1: (0, 0, ['null'])}
     latesttags = cache[cachename]
 
     rev = ctx.rev()
     todo = [rev]
     while todo:
         rev = todo.pop()
         if rev in latesttags:
             continue
         ctx = repo[rev]
         tags = [t for t in ctx.tags()
                 if (repo.tagtype(t) and repo.tagtype(t) != 'local'
                     and match(t))]
         if tags:
             latesttags[rev] = ctx.date()[0], 0, [t for t in sorted(tags)]
             continue
         try:
             # The tuples are laid out so the right one can be found by
             # comparison.
             pdate, pdist, ptag = max(
                 latesttags[p.rev()] for p in ctx.parents())
         except KeyError:
             # Cache miss - recurse
             todo.append(rev)
             todo.extend(p.rev() for p in ctx.parents())
             continue
         latesttags[rev] = pdate, pdist + 1, ptag
     return latesttags[rev]
 
 def getrenamedfn(repo, endrev=None):
     rcache = {}
     if endrev is None:
         endrev = len(repo)
 
     def getrenamed(fn, rev):
         '''looks up all renames for a file (up to endrev) the first
         time the file is given. It indexes on the changerev and only
         parses the manifest if linkrev != changerev.
         Returns rename info for fn at changerev rev.'''
         if fn not in rcache:
             rcache[fn] = {}
             fl = repo.file(fn)
             for i in fl:
                 lr = fl.linkrev(i)
                 renamed = fl.renamed(fl.node(i))
                 rcache[fn][lr] = renamed
                 if lr >= endrev:
                     break
         if rev in rcache[fn]:
             return rcache[fn][rev]
 
         # If linkrev != rev (i.e. rev not found in rcache) fallback to
         # filectx logic.
         try:
             return repo[rev][fn].renamed()
         except error.LookupError:
             return None
 
     return getrenamed
 
 # default templates internally used for rendering of lists
 defaulttempl = {
     'parent': '{rev}:{node|formatnode} ',
     'manifest': '{rev}:{node|formatnode}',
     'file_copy': '{name} ({source})',
     'envvar': '{key}={value}',
     'extra': '{key}={value|stringescape}'
 }
 # filecopy is preserved for compatibility reasons
 defaulttempl['filecopy'] = defaulttempl['file_copy']
 
 # keywords are callables like:
 # fn(repo, ctx, templ, cache, revcache, **args)
 # with:
 # repo - current repository instance
 # ctx - the changectx being displayed
 # templ - the templater instance
 # cache - a cache dictionary for the whole templater run
 # revcache - a cache dictionary for the current revision
 keywords = {}
 
 templatekeyword = registrar.templatekeyword(keywords)
 
 @templatekeyword('author')
 def showauthor(repo, ctx, templ, **args):
     """String. The unmodified author of the changeset."""
     return ctx.user()
 
 @templatekeyword('bisect')
 def showbisect(repo, ctx, templ, **args):
     """String. The changeset bisection status."""
     return hbisect.label(repo, ctx.node())
 
 @templatekeyword('branch')
 def showbranch(**args):
     """String. The name of the branch on which the changeset was
     committed.
     """
     return args['ctx'].branch()
 
 @templatekeyword('branches')
 def showbranches(**args):
     """List of strings. The name of the branch on which the
     changeset was committed. Will be empty if the branch name was
     default. (DEPRECATED)
     """
     branch = args['ctx'].branch()
     if branch != 'default':
         return showlist('branch', [branch], args, plural='branches')
     return showlist('branch', [], args, plural='branches')
 
 @templatekeyword('bookmarks')
 def showbookmarks(**args):
     """List of strings. Any bookmarks associated with the
     changeset. Also sets 'active', the name of the active bookmark.
     """
     repo = args['ctx']._repo
     bookmarks = args['ctx'].bookmarks()
     active = repo._activebookmark
     makemap = lambda v: {'bookmark': v, 'active': active, 'current': active}
     f = _showlist('bookmark', bookmarks, args)
     return _hybrid(f, bookmarks, makemap, lambda x: x['bookmark'])
 
 @templatekeyword('children')
 def showchildren(**args):
     """List of strings. The children of the changeset."""
     ctx = args['ctx']
     childrevs = ['%d:%s' % (cctx, cctx) for cctx in ctx.children()]
     return showlist('children', childrevs, args, element='child')
 
 # Deprecated, but kept alive for help generation a purpose.
 @templatekeyword('currentbookmark')
 def showcurrentbookmark(**args):
     """String. The active bookmark, if it is
     associated with the changeset (DEPRECATED)"""
     return showactivebookmark(**args)
 
 @templatekeyword('activebookmark')
 def showactivebookmark(**args):
     """String. The active bookmark, if it is
     associated with the changeset"""
     active = args['repo']._activebookmark
     if active and active in args['ctx'].bookmarks():
         return active
     return ''
 
 @templatekeyword('date')
 def showdate(repo, ctx, templ, **args):
     """Date information. The date when the changeset was committed."""
     return ctx.date()
 
 @templatekeyword('desc')
 def showdescription(repo, ctx, templ, **args):
     """String. The text of the changeset description."""
     s = ctx.description()
     if isinstance(s, encoding.localstr):
         # try hard to preserve utf-8 bytes
         return encoding.tolocal(encoding.fromlocal(s).strip())
     else:
         return s.strip()
 
 @templatekeyword('diffstat')
 def showdiffstat(repo, ctx, templ, **args):
     """String. Statistics of changes with the following format:
     "modified files: +added/-removed lines"
     """
     stats = patch.diffstatdata(util.iterlines(ctx.diff(noprefix=False)))
     maxname, maxtotal, adds, removes, binary = patch.diffstatsum(stats)
     return '%s: +%s/-%s' % (len(stats), adds, removes)
 
 @templatekeyword('envvars')
 def showenvvars(repo, **args):
     """A dictionary of environment variables. (EXPERIMENTAL)"""
     env = repo.ui.exportableenviron()
     env = util.sortdict((k, env[k]) for k in sorted(env))
     return showdict('envvar', env, args, plural='envvars')
 
 @templatekeyword('extras')
 def showextras(**args):
     """List of dicts with key, value entries of the 'extras'
     field of this changeset."""
     extras = args['ctx'].extra()
     extras = util.sortdict((k, extras[k]) for k in sorted(extras))
     makemap = lambda k: {'key': k, 'value': extras[k]}
     c = [makemap(k) for k in extras]
     f = _showlist('extra', c, args, plural='extras')
     return _hybrid(f, extras, makemap,
                    lambda x: '%s=%s' % (x['key'], util.escapestr(x['value'])))
 
 @templatekeyword('file_adds')
 def showfileadds(**args):
     """List of strings. Files added by this changeset."""
     repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
     return showlist('file_add', getfiles(repo, ctx, revcache)[1], args,
                     element='file')
 
 @templatekeyword('file_copies')
 def showfilecopies(**args):
     """List of strings. Files copied in this changeset with
     their sources.
     """
     cache, ctx = args['cache'], args['ctx']
     copies = args['revcache'].get('copies')
     if copies is None:
         if 'getrenamed' not in cache:
             cache['getrenamed'] = getrenamedfn(args['repo'])
         copies = []
         getrenamed = cache['getrenamed']
         for fn in ctx.files():
             rename = getrenamed(fn, ctx.rev())
             if rename:
                 copies.append((fn, rename[0]))
 
     copies = util.sortdict(copies)
     return showdict('file_copy', copies, args, plural='file_copies',
                     key='name', value='source', fmt='%s (%s)')
 
 # showfilecopiesswitch() displays file copies only if copy records are
 # provided before calling the templater, usually with a --copies
 # command line switch.
 @templatekeyword('file_copies_switch')
 def showfilecopiesswitch(**args):
     """List of strings. Like "file_copies" but displayed
     only if the --copied switch is set.
     """
     copies = args['revcache'].get('copies') or []
     copies = util.sortdict(copies)
     return showdict('file_copy', copies, args, plural='file_copies',
                     key='name', value='source', fmt='%s (%s)')
 
 @templatekeyword('file_dels')
 def showfiledels(**args):
     """List of strings. Files removed by this changeset."""
     repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
     return showlist('file_del', getfiles(repo, ctx, revcache)[2], args,
                     element='file')
 
 @templatekeyword('file_mods')
 def showfilemods(**args):
     """List of strings. Files modified by this changeset."""
     repo, ctx, revcache = args['repo'], args['ctx'], args['revcache']
     return showlist('file_mod', getfiles(repo, ctx, revcache)[0], args,
                     element='file')
 
 @templatekeyword('files')
 def showfiles(**args):
     """List of strings. All files modified, added, or removed by this
     changeset.
     """
     return showlist('file', args['ctx'].files(), args)
 
 @templatekeyword('graphnode')
 def showgraphnode(repo, ctx, **args):
     """String. The character representing the changeset node in
     an ASCII revision graph"""
     wpnodes = repo.dirstate.parents()
     if wpnodes[1] == nullid:
         wpnodes = wpnodes[:1]
     if ctx.node() in wpnodes:
         return '@'
     elif ctx.obsolete():
         return 'x'
     elif ctx.closesbranch():
         return '_'
     else:
         return 'o'
 
 @templatekeyword('index')
 def showindex(**args):
     """Integer. The current iteration of the loop. (0 indexed)"""
     # just hosts documentation; should be overridden by template mapping
     raise error.Abort(_("can't use index in this context"))
 
 @templatekeyword('latesttag')
 def showlatesttag(**args):
     """List of strings. The global tags on the most recent globally
     tagged ancestor of this changeset.  If no such tags exist, the list
     consists of the single string "null".
     """
     return showlatesttags(None, **args)
 
 def showlatesttags(pattern, **args):
     """helper method for the latesttag keyword and function"""
     repo, ctx = args['repo'], args['ctx']
     cache = args['cache']
     latesttags = getlatesttags(repo, ctx, cache, pattern)
 
     # latesttag[0] is an implementation detail for sorting csets on different
     # branches in a stable manner- it is the date the tagged cset was created,
     # not the date the tag was created.  Therefore it isn't made visible here.
     makemap = lambda v: {
         'changes': _showchangessincetag,
         'distance': latesttags[1],
         'latesttag': v,   # BC with {latesttag % '{latesttag}'}
         'tag': v
     }
 
     tags = latesttags[2]
     f = _showlist('latesttag', tags, args, separator=':')
     return _hybrid(f, tags, makemap, lambda x: x['latesttag'])
 
 @templatekeyword('latesttagdistance')
 def showlatesttagdistance(repo, ctx, templ, cache, **args):
     """Integer. Longest path to the latest tag."""
     return getlatesttags(repo, ctx, cache)[1]
 
 @templatekeyword('changessincelatesttag')
 def showchangessincelatesttag(repo, ctx, templ, cache, **args):
     """Integer. All ancestors not in the latest tag."""
     latesttag = getlatesttags(repo, ctx, cache)[2][0]
 
     return _showchangessincetag(repo, ctx, tag=latesttag, **args)
 
 def _showchangessincetag(repo, ctx, **args):
     offset = 0
     revs = [ctx.rev()]
     tag = args['tag']
 
     # The only() revset doesn't currently support wdir()
     if ctx.rev() is None:
         offset = 1
         revs = [p.rev() for p in ctx.parents()]
 
     return len(repo.revs('only(%ld, %s)', revs, tag)) + offset
 
 @templatekeyword('manifest')
 def showmanifest(**args):
     repo, ctx, templ = args['repo'], args['ctx'], args['templ']
     mnode = ctx.manifestnode()
     if mnode is None:
         # just avoid crash, we might want to use the 'ff...' hash in future
         return
     args = args.copy()
     args.update({'rev': repo.manifestlog._revlog.rev(mnode),
                  'node': hex(mnode)})
     return templ('manifest', **args)
 
 def shownames(namespace, **args):
     """helper method to generate a template keyword for a namespace"""
     ctx = args['ctx']
     repo = ctx.repo()
     ns = repo.names[namespace]
     names = ns.names(repo, ctx.node())
     return showlist(ns.templatename, names, args, plural=namespace)
 
 @templatekeyword('namespaces')
 def shownamespaces(**args):
     """Dict of lists. Names attached to this changeset per
     namespace."""
     ctx = args['ctx']
     repo = ctx.repo()
     namespaces = util.sortdict((k, showlist('name', ns.names(repo, ctx.node()),
                                             args))
                                for k, ns in repo.names.iteritems())
     f = _showlist('namespace', list(namespaces), args)
     return _hybrid(f, namespaces,
                    lambda k: {'namespace': k, 'names': namespaces[k]},
                    lambda x: x['namespace'])
 
 @templatekeyword('node')
 def shownode(repo, ctx, templ, **args):
     """String. The changeset identification hash, as a 40 hexadecimal
     digit string.
     """
     return ctx.hex()
 
 @templatekeyword('obsolete')
 def showobsolete(repo, ctx, templ, **args):
     """String. Whether the changeset is obsolete.
     """
     if ctx.obsolete():
         return 'obsolete'
     return ''
 
 @templatekeyword("predecessors")
 def showpredecessors(repo, ctx, **args):
     """Returns the list if the closest visible successors
     """
     predecessors = sorted(obsutil.closestpredecessors(repo, ctx.node()))
     predecessors = map(hex, predecessors)
 
-    return _hybrid(None, predecessors, lambda x: {'predecessor': x},
-                   lambda d: d['predecessor'][:12])
+    return _hybrid(None, predecessors, lambda x: {'node': x},
+                   lambda d: d['node'][:12])
 
 @templatekeyword('p1rev')
 def showp1rev(repo, ctx, templ, **args):
     """Integer. The repository-local revision number of the changeset's
     first parent, or -1 if the changeset has no parents."""
     return ctx.p1().rev()
 
 @templatekeyword('p2rev')
 def showp2rev(repo, ctx, templ, **args):
     """Integer. The repository-local revision number of the changeset's
     second parent, or -1 if the changeset has no second parent."""
     return ctx.p2().rev()
 
 @templatekeyword('p1node')
 def showp1node(repo, ctx, templ, **args):
     """String. The identification hash of the changeset's first parent,
     as a 40 digit hexadecimal string. If the changeset has no parents, all
     digits are 0."""
     return ctx.p1().hex()
 
 @templatekeyword('p2node')
 def showp2node(repo, ctx, templ, **args):
     """String. The identification hash of the changeset's second
     parent, as a 40 digit hexadecimal string. If the changeset has no second
     parent, all digits are 0."""
     return ctx.p2().hex()
 
 @templatekeyword('parents')
 def showparents(**args):
     """List of strings. The parents of the changeset in "rev:node"
     format. If the changeset has only one "natural" parent (the predecessor
     revision) nothing is shown."""
     repo = args['repo']
     ctx = args['ctx']
     pctxs = scmutil.meaningfulparents(repo, ctx)
     prevs = [str(p.rev()) for p in pctxs]  # ifcontains() needs a list of str
     parents = [[('rev', p.rev()),
                 ('node', p.hex()),
                 ('phase', p.phasestr())]
                for p in pctxs]
     f = _showlist('parent', parents, args)
     return _hybrid(f, prevs, lambda x: {'ctx': repo[int(x)], 'revcache': {}},
                    lambda d: _formatrevnode(d['ctx']))
 
 @templatekeyword('phase')
 def showphase(repo, ctx, templ, **args):
     """String. The changeset phase name."""
     return ctx.phasestr()
 
 @templatekeyword('phaseidx')
 def showphaseidx(repo, ctx, templ, **args):
     """Integer. The changeset phase index."""
     return ctx.phase()
 
 @templatekeyword('rev')
 def showrev(repo, ctx, templ, **args):
     """Integer. The repository-local changeset revision number."""
     return scmutil.intrev(ctx)
 
 def showrevslist(name, revs, **args):
     """helper to generate a list of revisions in which a mapped template will
     be evaluated"""
     repo = args['ctx'].repo()
     revs = [str(r) for r in revs]  # ifcontains() needs a list of str
     f = _showlist(name, revs, args)
     return _hybrid(f, revs,
                    lambda x: {name: x, 'ctx': repo[int(x)], 'revcache': {}},
                    lambda d: d[name])
 
 @templatekeyword('subrepos')
 def showsubrepos(**args):
     """List of strings. Updated subrepositories in the changeset."""
     ctx = args['ctx']
     substate = ctx.substate
     if not substate:
         return showlist('subrepo', [], args)
     psubstate = ctx.parents()[0].substate or {}
     subrepos = []
     for sub in substate:
         if sub not in psubstate or substate[sub] != psubstate[sub]:
             subrepos.append(sub) # modified or newly added in ctx
     for sub in psubstate:
         if sub not in substate:
             subrepos.append(sub) # removed in ctx
     return showlist('subrepo', sorted(subrepos), args)
 
 # don't remove "showtags" definition, even though namespaces will put
 # a helper function for "tags" keyword into "keywords" map automatically,
 # because online help text is built without namespaces initialization
 @templatekeyword('tags')
 def showtags(**args):
     """List of strings. Any tags associated with the changeset."""
     return shownames('tags', **args)
 
 def loadkeyword(ui, extname, registrarobj):
     """Load template keyword from specified registrarobj
     """
     for name, func in registrarobj._table.iteritems():
         keywords[name] = func
 
 @templatekeyword('termwidth')
 def termwidth(repo, ctx, templ, **args):
     """Integer. The width of the current terminal."""
     return repo.ui.termwidth()
 
 @templatekeyword('troubles')
 def showtroubles(**args):
     """List of strings. Evolution troubles affecting the changeset.
 
     (EXPERIMENTAL)
     """
     return showlist('trouble', args['ctx'].troubles(), args)
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = keywords.values()

tests/test-obsmarker-template.t

@@ -1,855 +1,888 b''
 This test file test the various templates related to obsmarkers.
 
 Global setup
 ============
 
   $ . $TESTDIR/testlib/obsmarker-common.sh
   $ cat >> $HGRCPATH <<EOF
   > [ui]
   > interactive = true
   > [phases]
   > publish=False
   > [experimental]
   > evolution=all
   > [alias]
   > tlog = log -G -T '{node|short}\
   >     {if(predecessors, "\n  Predecessors: {predecessors}")}\
   >     {if(predecessors, "\n  semi-colon: {join(predecessors, "; ")}")}\
-  >     {if(predecessors, "\n  json: {predecessors|json}")}\n'
+  >     {if(predecessors, "\n  json: {predecessors|json}")}\
+  >     {if(predecessors, "\n  map: {join(predecessors % "{node}", " ")}")}\n'
   > EOF
 
 Test templates on amended commit
 ================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-amend
   $ cd $TESTTMP/templates-local-amend
   $ mkcommit ROOT
   $ mkcommit A0
   $ echo 42 >> A0
   $ hg commit --amend -m "A1"
   $ hg commit --amend -m "A2"
 
   $ hg log --hidden -G
   @  changeset:   4:d004c8f274b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   3:a468dc9b3633
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A1
   |
   | x  changeset:   2:f137d23bb3e1
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     temporary amend commit for 471f378eab4c
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
   $ hg up 'desc(A0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(A1)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: a468dc9b3633
   |    semi-colon: a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
+  |    map: a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | @  a468dc9b3633
   |/
   o  ea207398892e
   
 Predecessors template should show all the predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   o  d004c8f274b9
   |    Predecessors: a468dc9b3633
   |    semi-colon: a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
+  |    map: a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | @  a468dc9b3633
   |/     Predecessors: 471f378eab4c
   |      semi-colon: 471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |      map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  f137d23bb3e1
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Predecessors template shouldn't show anything as all obsolete commit are not
 visible.
   $ hg up 'desc(A2)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg tlog
   @  d004c8f274b9
   |
   o  ea207398892e
   
   $ hg tlog --hidden
   @  d004c8f274b9
   |    Predecessors: a468dc9b3633
   |    semi-colon: a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
+  |    map: a468dc9b36338b14fdb7825f55ce3df4e71517ad
   | x  a468dc9b3633
   |/     Predecessors: 471f378eab4c
   |      semi-colon: 471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |      map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  f137d23bb3e1
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Test templates with splitted commit
 ===================================
 
   $ hg init $TESTTMP/templates-local-split
   $ cd $TESTTMP/templates-local-split
   $ mkcommit ROOT
   $ echo 42 >> a
   $ echo 43 >> b
   $ hg commit -A -m "A0"
   adding a
   adding b
   $ hg log --hidden -G
   @  changeset:   1:471597cad322
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 # Simulate split
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo 42 >> a
   $ hg commit -A -m "A0"
   adding a
   created new head
   $ echo 43 >> b
   $ hg commit -A -m "A0"
   adding b
   $ hg debugobsolete `getid "1"` `getid "2"` `getid "3"`
 
   $ hg log --hidden -G
   @  changeset:   3:f257fde29c7a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   2:337fec4d2edc
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   | x  changeset:   1:471597cad322
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'obsolete()' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  f257fde29c7a
   |    Predecessors: 471597cad322
   |    semi-colon: 471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
+  |    map: 471597cad322d1f659bb169751be9133dad92ef3
   o  337fec4d2edc
   |    Predecessors: 471597cad322
   |    semi-colon: 471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
+  |    map: 471597cad322d1f659bb169751be9133dad92ef3
   | @  471597cad322
   |/
   o  ea207398892e
   
   $ hg up f257fde29c7a
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show a predecessor as it's not displayed in
 the log
   $ hg tlog
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   o  ea207398892e
   
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  f257fde29c7a
   |    Predecessors: 471597cad322
   |    semi-colon: 471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
+  |    map: 471597cad322d1f659bb169751be9133dad92ef3
   o  337fec4d2edc
   |    Predecessors: 471597cad322
   |    semi-colon: 471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
+  |    map: 471597cad322d1f659bb169751be9133dad92ef3
   | x  471597cad322
   |/
   o  ea207398892e
   
 Test templates with folded commit
 =================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-fold
   $ cd $TESTTMP/templates-local-fold
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg log --hidden -G
   @  changeset:   2:0dec01379d3b
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     B0
   |
   o  changeset:   1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Simulate a fold
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo "A0" > A0
   $ echo "B0" > B0
   $ hg commit -A -m "C0"
   adding A0
   adding B0
   created new head
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(C0)"`
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
 
   $ hg log --hidden -G
   @  changeset:   3:eb5a0daa2192
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   | x  changeset:   2:0dec01379d3b
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show both predecessors as they should be both
 displayed
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 0dec01379d3b 471f378eab4c
   |    semi-colon: 0dec01379d3b; 471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  0dec01379d3b
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(C0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show predecessors as they are not displayed in
 the log
   $ hg tlog
   @  eb5a0daa2192
   |
   o  ea207398892e
   
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 0dec01379d3b 471f378eab4c
   |    semi-colon: 0dec01379d3b; 471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  0dec01379d3b
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Test templates with divergence
 ==============================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-divergence
   $ cd $TESTTMP/templates-local-divergence
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg commit --amend -m "A1"
   $ hg log --hidden -G
   @  changeset:   2:fdf9bde5129a
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg update --hidden 'desc(A0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg commit --amend -m "A2"
   $ hg log --hidden -G
   @  changeset:   3:65b757b745b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  trouble:     divergent
   |  summary:     A2
   |
   | o  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    trouble:     divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg commit --amend -m 'A3'
   $ hg log --hidden -G
   @  changeset:   4:019fadeab383
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  trouble:     divergent
   |  summary:     A3
   |
   | x  changeset:   3:65b757b745b9
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A2
   |
   | o  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    trouble:     divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  019fadeab383
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | o  fdf9bde5129a
   |/     Predecessors: 471f378eab4c
   |      semi-colon: 471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |      map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(A1)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should not show predecessors as they are not displayed in
 the log
   $ hg tlog
   o  019fadeab383
   |
   | @  fdf9bde5129a
   |/
   o  ea207398892e
   
 Predecessors template should the predecessors as we force their display with
 --hidden
   $ hg tlog --hidden
   o  019fadeab383
   |    Predecessors: 65b757b745b9
   |    semi-colon: 65b757b745b9
   |    json: ["65b757b745b935093c87a2bccd877521cccffcbd"]
+  |    map: 65b757b745b935093c87a2bccd877521cccffcbd
   | x  65b757b745b9
   |/     Predecessors: 471f378eab4c
   |      semi-colon: 471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |      map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  fdf9bde5129a
   |/     Predecessors: 471f378eab4c
   |      semi-colon: 471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |      map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Test templates with amended + folded commit
 ===========================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-amend-fold
   $ cd $TESTTMP/templates-local-amend-fold
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg commit --amend -m "B1"
   $ hg log --hidden -G
   @  changeset:   3:b7ea6d14e664
   |  tag:         tip
   |  parent:      1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     B1
   |
   | x  changeset:   2:0dec01379d3b
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     B0
   |
   o  changeset:   1:471f378eab4c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 # Simulate a fold
   $ hg up -r "desc(ROOT)"
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo "A0" > A0
   $ echo "B0" > B0
   $ hg commit -A -m "C0"
   adding A0
   adding B0
   created new head
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(C0)"`
   $ hg debugobsolete `getid "desc(B1)"` `getid "desc(C0)"`
 
   $ hg log --hidden -G
   @  changeset:   4:eb5a0daa2192
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   | x  changeset:   3:b7ea6d14e664
   | |  parent:      1:471f378eab4c
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     B1
   | |
   | | x  changeset:   2:0dec01379d3b
   | |/   user:        test
   | |    date:        Thu Jan 01 00:00:00 1970 +0000
   | |    summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check templates
 ---------------
 
   $ hg up 'desc(A0)' --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 0dec01379d3b 471f378eab4c
   |    semi-colon: 0dec01379d3b; 471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  0dec01379d3b
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(B1)' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 471f378eab4c b7ea6d14e664
   |    semi-colon: 471f378eab4c; b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874 b7ea6d14e664bdc8922221f7992631b50da3fb07
   | @  b7ea6d14e664
   | |
   | x  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(C0)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show no predecessors as they are both non visible
   $ hg tlog
   @  eb5a0daa2192
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 471f378eab4c b7ea6d14e664
   |    semi-colon: 471f378eab4c; b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874 b7ea6d14e664bdc8922221f7992631b50da3fb07
   | x  b7ea6d14e664
   | |    Predecessors: 0dec01379d3b
   | |    semi-colon: 0dec01379d3b
   | |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
+  | |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | | x  0dec01379d3b
   | |/
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Test template with pushed and pulled obs markers
 ================================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-remote-markers-1
   $ cd $TESTTMP/templates-local-remote-markers-1
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg clone $TESTTMP/templates-local-remote-markers-1 $TESTTMP/templates-local-remote-markers-2
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd $TESTTMP/templates-local-remote-markers-2
   $ hg log --hidden -G
   @  changeset:   1:471f378eab4c
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ cd $TESTTMP/templates-local-remote-markers-1
   $ hg commit --amend -m "A1"
   $ hg commit --amend -m "A2"
   $ hg log --hidden -G
   @  changeset:   3:7a230b46bf61
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ cd $TESTTMP/templates-local-remote-markers-2
   $ hg pull
   pulling from $TESTTMP/templates-local-remote-markers-1 (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 0 changes to 1 files (+1 heads)
   2 new obsolescence markers
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg log --hidden -G
   o  changeset:   2:7a230b46bf61
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | @  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
   $ hg debugobsolete
   471f378eab4c5e25f6c77f785b27c936efb22874 fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e 7a230b46bf61e50b30308c6cfd7bd1269ef54702 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
 
 Check templates
 ---------------
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  7a230b46bf61
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
   $ hg up 'desc(A2)'
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Predecessors template should show no predecessors as they are non visible
   $ hg tlog
   @  7a230b46bf61
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  7a230b46bf61
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/
   o  ea207398892e
   
 
 Test template with obsmarkers cycle
 ===================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-cycle
   $ cd $TESTTMP/templates-local-cycle
   $ mkcommit ROOT
   $ mkcommit A0
   $ mkcommit B0
   $ hg up -r 0
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ mkcommit C0
   created new head
 
 Create the cycle
 
   $ hg debugobsolete `getid "desc(A0)"` `getid "desc(B0)"`
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(A0)"`
 
 Check templates
 ---------------
 
   $ hg tlog
   @  f897c6137566
   |
   o  ea207398892e
   
 
   $ hg up -r "desc(B0)" --hidden
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |    Predecessors: 0dec01379d3b
   |    semi-colon: 0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
+  |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | @  0dec01379d3b
   | |    Predecessors: 471f378eab4c
   | |    semi-colon: 471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  | |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/     Predecessors: 0dec01379d3b
   |      semi-colon: 0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
+  |      map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   o  ea207398892e
   
 
   $ hg up -r "desc(A0)" --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |    Predecessors: 471f378eab4c
   |    semi-colon: 471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | @  471f378eab4c
   |/
   o  ea207398892e
   
 
   $ hg up -r "desc(ROOT)" --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |
   @  ea207398892e
   
 
   $ hg tlog --hidden
   o  f897c6137566
   |    Predecessors: 0dec01379d3b
   |    semi-colon: 0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
+  |    map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | x  0dec01379d3b
   | |    Predecessors: 471f378eab4c
   | |    semi-colon: 471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
+  | |    map: 471f378eab4c5e25f6c77f785b27c936efb22874
   | x  471f378eab4c
   |/     Predecessors: 0dec01379d3b
   |      semi-colon: 0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
+  |      map: 0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   @  ea207398892e