templatekw: make {successorssets} always return a list (issue6342)

Previously, {successorssets} returns an empty string instead of an empty list
for a non-obsolete changeset. The changing type of the JSON output makes it
hard to consume from statically-typed languages.

Differential Revision: https://phab.mercurial-scm.org/D9158

mercurial/templatekw.py

@@ -1,992 +1,991 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,
     wdirid,
     wdirrev,
 )
 
 from . import (
     diffutil,
     encoding,
     error,
     hbisect,
     i18n,
     obsutil,
     patch,
     pycompat,
     registrar,
     scmutil,
     templateutil,
     util,
 )
 from .utils import stringutil
 
 _hybrid = templateutil.hybrid
 hybriddict = templateutil.hybriddict
 hybridlist = templateutil.hybridlist
 compatdict = templateutil.compatdict
 compatlist = templateutil.compatlist
 _showcompatlist = templateutil._showcompatlist
 
 
 def getlatesttags(context, mapping, pattern=None):
     '''return date, distance and name for the latest tag of rev'''
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     cache = context.resource(mapping, b'cache')
 
     cachename = b'latesttags'
     if pattern is not None:
         cachename += b'-' + pattern
         match = stringutil.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, [b'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) != b'local' and match(t))
         ]
         if tags:
             latesttags[rev] = ctx.date()[0], 0, [t for t in sorted(tags)]
             continue
         try:
             ptags = [latesttags[p.rev()] for p in ctx.parents()]
             if len(ptags) > 1:
                 if ptags[0][2] == ptags[1][2]:
                     # The tuples are laid out so the right one can be found by
                     # comparison in this case.
                     pdate, pdist, ptag = max(ptags)
                 else:
 
                     def key(x):
                         tag = x[2][0]
                         if ctx.rev() is None:
                             # only() doesn't support wdir
                             prevs = [c.rev() for c in ctx.parents()]
                             changes = repo.revs(b'only(%ld, %s)', prevs, tag)
                             changessincetag = len(changes) + 1
                         else:
                             changes = repo.revs(b'only(%d, %s)', ctx.rev(), tag)
                             changessincetag = len(changes)
                         # Smallest number of changes since tag wins. Date is
                         # used as tiebreaker.
                         return [-changessincetag, x[0]]
 
                     pdate, pdist, ptag = max(ptags, key=key)
             else:
                 pdate, pdist, ptag = ptags[0]
         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 getlogcolumns():
     """Return a dict of log column labels"""
     _ = pycompat.identity  # temporarily disable gettext
     # i18n: column positioning for "hg log"
     columns = _(
         b'bookmark:    %s\n'
         b'branch:      %s\n'
         b'changeset:   %s\n'
         b'copies:      %s\n'
         b'date:        %s\n'
         b'extra:       %s=%s\n'
         b'files+:      %s\n'
         b'files-:      %s\n'
         b'files:       %s\n'
         b'instability: %s\n'
         b'manifest:    %s\n'
         b'obsolete:    %s\n'
         b'parent:      %s\n'
         b'phase:       %s\n'
         b'summary:     %s\n'
         b'tag:         %s\n'
         b'user:        %s\n'
     )
     return dict(
         zip(
             [s.split(b':', 1)[0] for s in columns.splitlines()],
             i18n._(columns).splitlines(True),
         )
     )
 
 
 # basic internal templates
 _changeidtmpl = b'{rev}:{node|formatnode}'
 
 # default templates internally used for rendering of lists
 defaulttempl = {
     b'parent': _changeidtmpl + b' ',
     b'manifest': _changeidtmpl,
     b'file_copy': b'{name} ({source})',
     b'envvar': b'{key}={value}',
     b'extra': b'{key}={value|stringescape}',
 }
 # filecopy is preserved for compatibility reasons
 defaulttempl[b'filecopy'] = defaulttempl[b'file_copy']
 
 # keywords are callables (see registrar.templatekeyword for details)
 keywords = {}
 templatekeyword = registrar.templatekeyword(keywords)
 
 
 @templatekeyword(b'author', requires={b'ctx'})
 def showauthor(context, mapping):
     """Alias for ``{user}``"""
     return showuser(context, mapping)
 
 
 @templatekeyword(b'bisect', requires={b'repo', b'ctx'})
 def showbisect(context, mapping):
     """String. The changeset bisection status."""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     return hbisect.label(repo, ctx.node())
 
 
 @templatekeyword(b'branch', requires={b'ctx'})
 def showbranch(context, mapping):
     """String. The name of the branch on which the changeset was
     committed.
     """
     ctx = context.resource(mapping, b'ctx')
     return ctx.branch()
 
 
 @templatekeyword(b'branches', requires={b'ctx'})
 def showbranches(context, mapping):
     """List of strings. The name of the branch on which the
     changeset was committed. Will be empty if the branch name was
     default. (DEPRECATED)
     """
     ctx = context.resource(mapping, b'ctx')
     branch = ctx.branch()
     if branch != b'default':
         return compatlist(
             context, mapping, b'branch', [branch], plural=b'branches'
         )
     return compatlist(context, mapping, b'branch', [], plural=b'branches')
 
 
 @templatekeyword(b'bookmarks', requires={b'repo', b'ctx'})
 def showbookmarks(context, mapping):
     """List of strings. Any bookmarks associated with the
     changeset. Also sets 'active', the name of the active bookmark.
     """
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     bookmarks = ctx.bookmarks()
     active = repo._activebookmark
     makemap = lambda v: {b'bookmark': v, b'active': active, b'current': active}
     f = _showcompatlist(context, mapping, b'bookmark', bookmarks)
     return _hybrid(f, bookmarks, makemap, pycompat.identity)
 
 
 @templatekeyword(b'children', requires={b'ctx'})
 def showchildren(context, mapping):
     """List of strings. The children of the changeset."""
     ctx = context.resource(mapping, b'ctx')
     childrevs = [b'%d:%s' % (cctx.rev(), cctx) for cctx in ctx.children()]
     return compatlist(
         context, mapping, b'children', childrevs, element=b'child'
     )
 
 
 # Deprecated, but kept alive for help generation a purpose.
 @templatekeyword(b'currentbookmark', requires={b'repo', b'ctx'})
 def showcurrentbookmark(context, mapping):
     """String. The active bookmark, if it is associated with the changeset.
     (DEPRECATED)"""
     return showactivebookmark(context, mapping)
 
 
 @templatekeyword(b'activebookmark', requires={b'repo', b'ctx'})
 def showactivebookmark(context, mapping):
     """String. The active bookmark, if it is associated with the changeset."""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     active = repo._activebookmark
     if active and active in ctx.bookmarks():
         return active
     return b''
 
 
 @templatekeyword(b'date', requires={b'ctx'})
 def showdate(context, mapping):
     """Date information. The date when the changeset was committed."""
     ctx = context.resource(mapping, b'ctx')
     # the default string format is '<float(unixtime)><tzoffset>' because
     # python-hglib splits date at decimal separator.
     return templateutil.date(ctx.date(), showfmt=b'%d.0%d')
 
 
 @templatekeyword(b'desc', requires={b'ctx'})
 def showdescription(context, mapping):
     """String. The text of the changeset description."""
     ctx = context.resource(mapping, b'ctx')
     s = ctx.description()
     if isinstance(s, encoding.localstr):
         # try hard to preserve utf-8 bytes
         return encoding.tolocal(encoding.fromlocal(s).strip())
     elif isinstance(s, encoding.safelocalstr):
         return encoding.safelocalstr(s.strip())
     else:
         return s.strip()
 
 
 @templatekeyword(b'diffstat', requires={b'ui', b'ctx'})
 def showdiffstat(context, mapping):
     """String. Statistics of changes with the following format:
     "modified files: +added/-removed lines"
     """
     ui = context.resource(mapping, b'ui')
     ctx = context.resource(mapping, b'ctx')
     diffopts = diffutil.diffallopts(ui, {b'noprefix': False})
     diff = ctx.diff(opts=diffopts)
     stats = patch.diffstatdata(util.iterlines(diff))
     maxname, maxtotal, adds, removes, binary = patch.diffstatsum(stats)
     return b'%d: +%d/-%d' % (len(stats), adds, removes)
 
 
 @templatekeyword(b'envvars', requires={b'ui'})
 def showenvvars(context, mapping):
     """A dictionary of environment variables. (EXPERIMENTAL)"""
     ui = context.resource(mapping, b'ui')
     env = ui.exportableenviron()
     env = util.sortdict((k, env[k]) for k in sorted(env))
     return compatdict(context, mapping, b'envvar', env, plural=b'envvars')
 
 
 @templatekeyword(b'extras', requires={b'ctx'})
 def showextras(context, mapping):
     """List of dicts with key, value entries of the 'extras'
     field of this changeset."""
     ctx = context.resource(mapping, b'ctx')
     extras = ctx.extra()
     extras = util.sortdict((k, extras[k]) for k in sorted(extras))
     makemap = lambda k: {b'key': k, b'value': extras[k]}
     c = [makemap(k) for k in extras]
     f = _showcompatlist(context, mapping, b'extra', c, plural=b'extras')
     return _hybrid(
         f,
         extras,
         makemap,
         lambda k: b'%s=%s' % (k, stringutil.escapestr(extras[k])),
     )
 
 
 def _getfilestatus(context, mapping, listall=False):
     ctx = context.resource(mapping, b'ctx')
     revcache = context.resource(mapping, b'revcache')
     if b'filestatus' not in revcache or revcache[b'filestatusall'] < listall:
         stat = ctx.p1().status(
             ctx, listignored=listall, listclean=listall, listunknown=listall
         )
         revcache[b'filestatus'] = stat
         revcache[b'filestatusall'] = listall
     return revcache[b'filestatus']
 
 
 def _getfilestatusmap(context, mapping, listall=False):
     revcache = context.resource(mapping, b'revcache')
     if b'filestatusmap' not in revcache or revcache[b'filestatusall'] < listall:
         stat = _getfilestatus(context, mapping, listall=listall)
         revcache[b'filestatusmap'] = statmap = {}
         for char, files in zip(pycompat.iterbytestr(b'MAR!?IC'), stat):
             statmap.update((f, char) for f in files)
     return revcache[b'filestatusmap']  # {path: statchar}
 
 
 @templatekeyword(
     b'file_copies', requires={b'repo', b'ctx', b'cache', b'revcache'}
 )
 def showfilecopies(context, mapping):
     """List of strings. Files copied in this changeset with
     their sources.
     """
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     cache = context.resource(mapping, b'cache')
     copies = context.resource(mapping, b'revcache').get(b'copies')
     if copies is None:
         if b'getcopies' not in cache:
             cache[b'getcopies'] = scmutil.getcopiesfn(repo)
         getcopies = cache[b'getcopies']
         copies = getcopies(ctx)
     return templateutil.compatfilecopiesdict(
         context, mapping, b'file_copy', copies
     )
 
 
 # showfilecopiesswitch() displays file copies only if copy records are
 # provided before calling the templater, usually with a --copies
 # command line switch.
 @templatekeyword(b'file_copies_switch', requires={b'revcache'})
 def showfilecopiesswitch(context, mapping):
     """List of strings. Like "file_copies" but displayed
     only if the --copied switch is set.
     """
     copies = context.resource(mapping, b'revcache').get(b'copies') or []
     return templateutil.compatfilecopiesdict(
         context, mapping, b'file_copy', copies
     )
 
 
 @templatekeyword(b'file_adds', requires={b'ctx', b'revcache'})
 def showfileadds(context, mapping):
     """List of strings. Files added by this changeset."""
     ctx = context.resource(mapping, b'ctx')
     return templateutil.compatfileslist(
         context, mapping, b'file_add', ctx.filesadded()
     )
 
 
 @templatekeyword(b'file_dels', requires={b'ctx', b'revcache'})
 def showfiledels(context, mapping):
     """List of strings. Files removed by this changeset."""
     ctx = context.resource(mapping, b'ctx')
     return templateutil.compatfileslist(
         context, mapping, b'file_del', ctx.filesremoved()
     )
 
 
 @templatekeyword(b'file_mods', requires={b'ctx', b'revcache'})
 def showfilemods(context, mapping):
     """List of strings. Files modified by this changeset."""
     ctx = context.resource(mapping, b'ctx')
     return templateutil.compatfileslist(
         context, mapping, b'file_mod', ctx.filesmodified()
     )
 
 
 @templatekeyword(b'files', requires={b'ctx'})
 def showfiles(context, mapping):
     """List of strings. All files modified, added, or removed by this
     changeset.
     """
     ctx = context.resource(mapping, b'ctx')
     return templateutil.compatfileslist(context, mapping, b'file', ctx.files())
 
 
 @templatekeyword(b'graphnode', requires={b'repo', b'ctx', b'cache'})
 def showgraphnode(context, mapping):
     """String. The character representing the changeset node in an ASCII
     revision graph."""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     cache = context.resource(mapping, b'cache')
     return getgraphnode(repo, ctx, cache)
 
 
 def getgraphnode(repo, ctx, cache):
     return getgraphnodecurrent(repo, ctx, cache) or getgraphnodesymbol(ctx)
 
 
 def getgraphnodecurrent(repo, ctx, cache):
     wpnodes = repo.dirstate.parents()
     if wpnodes[1] == nullid:
         wpnodes = wpnodes[:1]
     if ctx.node() in wpnodes:
         return b'@'
     else:
         merge_nodes = cache.get(b'merge_nodes')
         if merge_nodes is None:
             from . import mergestate as mergestatemod
 
             mergestate = mergestatemod.mergestate.read(repo)
             if mergestate.unresolvedcount():
                 merge_nodes = (mergestate.local, mergestate.other)
             else:
                 merge_nodes = ()
             cache[b'merge_nodes'] = merge_nodes
 
         if ctx.node() in merge_nodes:
             return b'%'
         return b''
 
 
 def getgraphnodesymbol(ctx):
     if ctx.obsolete():
         return b'x'
     elif ctx.isunstable():
         return b'*'
     elif ctx.closesbranch():
         return b'_'
     else:
         return b'o'
 
 
 @templatekeyword(b'graphwidth', requires=())
 def showgraphwidth(context, mapping):
     """Integer. The width of the graph drawn by 'log --graph' or zero."""
     # just hosts documentation; should be overridden by template mapping
     return 0
 
 
 @templatekeyword(b'index', requires=())
 def showindex(context, mapping):
     """Integer. The current iteration of the loop. (0 indexed)"""
     # just hosts documentation; should be overridden by template mapping
     raise error.Abort(_(b"can't use index in this context"))
 
 
 @templatekeyword(b'latesttag', requires={b'repo', b'ctx', b'cache'})
 def showlatesttag(context, mapping):
     """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(context, mapping, None)
 
 
 def showlatesttags(context, mapping, pattern):
     """helper method for the latesttag keyword and function"""
     latesttags = getlatesttags(context, mapping, 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: {
         b'changes': _showchangessincetag,
         b'distance': latesttags[1],
         b'latesttag': v,  # BC with {latesttag % '{latesttag}'}
         b'tag': v,
     }
 
     tags = latesttags[2]
     f = _showcompatlist(context, mapping, b'latesttag', tags, separator=b':')
     return _hybrid(f, tags, makemap, pycompat.identity)
 
 
 @templatekeyword(b'latesttagdistance', requires={b'repo', b'ctx', b'cache'})
 def showlatesttagdistance(context, mapping):
     """Integer. Longest path to the latest tag."""
     return getlatesttags(context, mapping)[1]
 
 
 @templatekeyword(b'changessincelatesttag', requires={b'repo', b'ctx', b'cache'})
 def showchangessincelatesttag(context, mapping):
     """Integer. All ancestors not in the latest tag."""
     tag = getlatesttags(context, mapping)[2][0]
     mapping = context.overlaymap(mapping, {b'tag': tag})
     return _showchangessincetag(context, mapping)
 
 
 def _showchangessincetag(context, mapping):
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     offset = 0
     revs = [ctx.rev()]
     tag = context.symbol(mapping, b'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(b'only(%ld, %s)', revs, tag)) + offset
 
 
 # teach templater latesttags.changes is switched to (context, mapping) API
 _showchangessincetag._requires = {b'repo', b'ctx'}
 
 
 @templatekeyword(b'manifest', requires={b'repo', b'ctx'})
 def showmanifest(context, mapping):
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     mnode = ctx.manifestnode()
     if mnode is None:
         mnode = wdirid
         mrev = wdirrev
     else:
         mrev = repo.manifestlog.rev(mnode)
     mhex = hex(mnode)
     mapping = context.overlaymap(mapping, {b'rev': mrev, b'node': mhex})
     f = context.process(b'manifest', mapping)
     return templateutil.hybriditem(
         f, None, f, lambda x: {b'rev': mrev, b'node': mhex}
     )
 
 
 @templatekeyword(b'obsfate', requires={b'ui', b'repo', b'ctx'})
 def showobsfate(context, mapping):
     # this function returns a list containing pre-formatted obsfate strings.
     #
     # This function will be replaced by templates fragments when we will have
     # the verbosity templatekw available.
     succsandmarkers = showsuccsandmarkers(context, mapping)
 
     ui = context.resource(mapping, b'ui')
     repo = context.resource(mapping, b'repo')
     values = []
 
     for x in succsandmarkers.tovalue(context, mapping):
         v = obsutil.obsfateprinter(
             ui, repo, x[b'successors'], x[b'markers'], scmutil.formatchangeid
         )
         values.append(v)
 
     return compatlist(context, mapping, b"fate", values)
 
 
 def shownames(context, mapping, namespace):
     """helper method to generate a template keyword for a namespace"""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     ns = repo.names.get(namespace)
     if ns is None:
         # namespaces.addnamespace() registers new template keyword, but
         # the registered namespace might not exist in the current repo.
         return
     names = ns.names(repo, ctx.node())
     return compatlist(
         context, mapping, ns.templatename, names, plural=namespace
     )
 
 
 @templatekeyword(b'namespaces', requires={b'repo', b'ctx'})
 def shownamespaces(context, mapping):
     """Dict of lists. Names attached to this changeset per
     namespace."""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
 
     namespaces = util.sortdict()
 
     def makensmapfn(ns):
         # 'name' for iterating over namespaces, templatename for local reference
         return lambda v: {b'name': v, ns.templatename: v}
 
     for k, ns in pycompat.iteritems(repo.names):
         names = ns.names(repo, ctx.node())
         f = _showcompatlist(context, mapping, b'name', names)
         namespaces[k] = _hybrid(f, names, makensmapfn(ns), pycompat.identity)
 
     f = _showcompatlist(context, mapping, b'namespace', list(namespaces))
 
     def makemap(ns):
         return {
             b'namespace': ns,
             b'names': namespaces[ns],
             b'builtin': repo.names[ns].builtin,
             b'colorname': repo.names[ns].colorname,
         }
 
     return _hybrid(f, namespaces, makemap, pycompat.identity)
 
 
 @templatekeyword(b'negrev', requires={b'repo', b'ctx'})
 def shownegrev(context, mapping):
     """Integer. The repository-local changeset negative revision number,
     which counts in the opposite direction."""
     ctx = context.resource(mapping, b'ctx')
     rev = ctx.rev()
     if rev is None or rev < 0:  # wdir() or nullrev?
         return None
     repo = context.resource(mapping, b'repo')
     return rev - len(repo)
 
 
 @templatekeyword(b'node', requires={b'ctx'})
 def shownode(context, mapping):
     """String. The changeset identification hash, as a 40 hexadecimal
     digit string.
     """
     ctx = context.resource(mapping, b'ctx')
     return ctx.hex()
 
 
 @templatekeyword(b'obsolete', requires={b'ctx'})
 def showobsolete(context, mapping):
     """String. Whether the changeset is obsolete. (EXPERIMENTAL)"""
     ctx = context.resource(mapping, b'ctx')
     if ctx.obsolete():
         return b'obsolete'
     return b''
 
 
 @templatekeyword(b'path', requires={b'fctx'})
 def showpath(context, mapping):
     """String. Repository-absolute path of the current file. (EXPERIMENTAL)"""
     fctx = context.resource(mapping, b'fctx')
     return fctx.path()
 
 
 @templatekeyword(b'peerurls', requires={b'repo'})
 def showpeerurls(context, mapping):
     """A dictionary of repository locations defined in the [paths] section
     of your configuration file."""
     repo = context.resource(mapping, b'repo')
     # see commands.paths() for naming of dictionary keys
     paths = repo.ui.paths
     urls = util.sortdict(
         (k, p.rawloc) for k, p in sorted(pycompat.iteritems(paths))
     )
 
     def makemap(k):
         p = paths[k]
         d = {b'name': k, b'url': p.rawloc}
         d.update((o, v) for o, v in sorted(pycompat.iteritems(p.suboptions)))
         return d
 
     return _hybrid(None, urls, makemap, lambda k: b'%s=%s' % (k, urls[k]))
 
 
 @templatekeyword(b"predecessors", requires={b'repo', b'ctx'})
 def showpredecessors(context, mapping):
     """Returns the list of the closest visible predecessors. (EXPERIMENTAL)"""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     predecessors = sorted(obsutil.closestpredecessors(repo, ctx.node()))
     predecessors = pycompat.maplist(hex, predecessors)
 
     return _hybrid(
         None,
         predecessors,
         lambda x: {b'ctx': repo[x]},
         lambda x: scmutil.formatchangeid(repo[x]),
     )
 
 
 @templatekeyword(b'reporoot', requires={b'repo'})
 def showreporoot(context, mapping):
     """String. The root directory of the current repository."""
     repo = context.resource(mapping, b'repo')
     return repo.root
 
 
 @templatekeyword(b'size', requires={b'fctx'})
 def showsize(context, mapping):
     """Integer. Size of the current file in bytes. (EXPERIMENTAL)"""
     fctx = context.resource(mapping, b'fctx')
     return fctx.size()
 
 
 # requires 'fctx' to denote {status} depends on (ctx, path) pair
 @templatekeyword(b'status', requires={b'ctx', b'fctx', b'revcache'})
 def showstatus(context, mapping):
     """String. Status code of the current file. (EXPERIMENTAL)"""
     path = templateutil.runsymbol(context, mapping, b'path')
     path = templateutil.stringify(context, mapping, path)
     if not path:
         return
     statmap = _getfilestatusmap(context, mapping)
     if path not in statmap:
         statmap = _getfilestatusmap(context, mapping, listall=True)
     return statmap.get(path)
 
 
 @templatekeyword(b"successorssets", requires={b'repo', b'ctx'})
 def showsuccessorssets(context, mapping):
     """Returns a string of sets of successors for a changectx. Format used
     is: [ctx1, ctx2], [ctx3] if ctx has been split into ctx1 and ctx2
     while also diverged into ctx3. (EXPERIMENTAL)"""
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
-    if not ctx.obsolete():
-        return b''
+    data = []
 
-    ssets = obsutil.successorssets(repo, ctx.node(), closest=True)
-    ssets = [[hex(n) for n in ss] for ss in ssets]
+    if ctx.obsolete():
+        ssets = obsutil.successorssets(repo, ctx.node(), closest=True)
+        ssets = [[hex(n) for n in ss] for ss in ssets]
 
-    data = []
-    for ss in ssets:
-        h = _hybrid(
-            None,
-            ss,
-            lambda x: {b'ctx': repo[x]},
-            lambda x: scmutil.formatchangeid(repo[x]),
-        )
-        data.append(h)
+        for ss in ssets:
+            h = _hybrid(
+                None,
+                ss,
+                lambda x: {b'ctx': repo[x]},
+                lambda x: scmutil.formatchangeid(repo[x]),
+            )
+            data.append(h)
 
     # Format the successorssets
     def render(d):
         return templateutil.stringify(context, mapping, d)
 
     def gen(data):
         yield b"; ".join(render(d) for d in data)
 
     return _hybrid(
         gen(data), data, lambda x: {b'successorset': x}, pycompat.identity
     )
 
 
 @templatekeyword(b"succsandmarkers", requires={b'repo', b'ctx'})
 def showsuccsandmarkers(context, mapping):
     """Returns a list of dict for each final successor of ctx. The dict
     contains successors node id in "successors" keys and the list of
     obs-markers from ctx to the set of successors in "markers".
     (EXPERIMENTAL)
     """
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
 
     values = obsutil.successorsandmarkers(repo, ctx)
 
     if values is None:
         values = []
 
     # Format successors and markers to avoid exposing binary to templates
     data = []
     for i in values:
         # Format successors
         successors = i[b'successors']
 
         successors = [hex(n) for n in successors]
         successors = _hybrid(
             None,
             successors,
             lambda x: {b'ctx': repo[x]},
             lambda x: scmutil.formatchangeid(repo[x]),
         )
 
         # Format markers
         finalmarkers = []
         for m in i[b'markers']:
             hexprec = hex(m[0])
             hexsucs = tuple(hex(n) for n in m[1])
             hexparents = None
             if m[5] is not None:
                 hexparents = tuple(hex(n) for n in m[5])
             newmarker = (hexprec, hexsucs) + m[2:5] + (hexparents,) + m[6:]
             finalmarkers.append(newmarker)
 
         data.append({b'successors': successors, b'markers': finalmarkers})
 
     return templateutil.mappinglist(data)
 
 
 @templatekeyword(b'p1', requires={b'ctx'})
 def showp1(context, mapping):
     """Changeset. The changeset's first parent. ``{p1.rev}`` for the revision
     number, and ``{p1.node}`` for the identification hash."""
     ctx = context.resource(mapping, b'ctx')
     return templateutil.mappingdict({b'ctx': ctx.p1()}, tmpl=_changeidtmpl)
 
 
 @templatekeyword(b'p2', requires={b'ctx'})
 def showp2(context, mapping):
     """Changeset. The changeset's second parent. ``{p2.rev}`` for the revision
     number, and ``{p2.node}`` for the identification hash."""
     ctx = context.resource(mapping, b'ctx')
     return templateutil.mappingdict({b'ctx': ctx.p2()}, tmpl=_changeidtmpl)
 
 
 @templatekeyword(b'p1rev', requires={b'ctx'})
 def showp1rev(context, mapping):
     """Integer. The repository-local revision number of the changeset's
     first parent, or -1 if the changeset has no parents. (DEPRECATED)"""
     ctx = context.resource(mapping, b'ctx')
     return ctx.p1().rev()
 
 
 @templatekeyword(b'p2rev', requires={b'ctx'})
 def showp2rev(context, mapping):
     """Integer. The repository-local revision number of the changeset's
     second parent, or -1 if the changeset has no second parent. (DEPRECATED)"""
     ctx = context.resource(mapping, b'ctx')
     return ctx.p2().rev()
 
 
 @templatekeyword(b'p1node', requires={b'ctx'})
 def showp1node(context, mapping):
     """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. (DEPRECATED)"""
     ctx = context.resource(mapping, b'ctx')
     return ctx.p1().hex()
 
 
 @templatekeyword(b'p2node', requires={b'ctx'})
 def showp2node(context, mapping):
     """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. (DEPRECATED)"""
     ctx = context.resource(mapping, b'ctx')
     return ctx.p2().hex()
 
 
 @templatekeyword(b'parents', requires={b'repo', b'ctx'})
 def showparents(context, mapping):
     """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 = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
     pctxs = scmutil.meaningfulparents(repo, ctx)
     prevs = [p.rev() for p in pctxs]
     parents = [
         [(b'rev', p.rev()), (b'node', p.hex()), (b'phase', p.phasestr())]
         for p in pctxs
     ]
     f = _showcompatlist(context, mapping, b'parent', parents)
     return _hybrid(
         f,
         prevs,
         lambda x: {b'ctx': repo[x]},
         lambda x: scmutil.formatchangeid(repo[x]),
         keytype=int,
     )
 
 
 @templatekeyword(b'phase', requires={b'ctx'})
 def showphase(context, mapping):
     """String. The changeset phase name."""
     ctx = context.resource(mapping, b'ctx')
     return ctx.phasestr()
 
 
 @templatekeyword(b'phaseidx', requires={b'ctx'})
 def showphaseidx(context, mapping):
     """Integer. The changeset phase index. (ADVANCED)"""
     ctx = context.resource(mapping, b'ctx')
     return ctx.phase()
 
 
 @templatekeyword(b'rev', requires={b'ctx'})
 def showrev(context, mapping):
     """Integer. The repository-local changeset revision number."""
     ctx = context.resource(mapping, b'ctx')
     return scmutil.intrev(ctx)
 
 
 @templatekeyword(b'subrepos', requires={b'ctx'})
 def showsubrepos(context, mapping):
     """List of strings. Updated subrepositories in the changeset."""
     ctx = context.resource(mapping, b'ctx')
     substate = ctx.substate
     if not substate:
         return compatlist(context, mapping, b'subrepo', [])
     psubstate = ctx.p1().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 compatlist(context, mapping, b'subrepo', sorted(subrepos))
 
 
 # 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(b'tags', requires={b'repo', b'ctx'})
 def showtags(context, mapping):
     """List of strings. Any tags associated with the changeset."""
     return shownames(context, mapping, b'tags')
 
 
 @templatekeyword(b'termwidth', requires={b'ui'})
 def showtermwidth(context, mapping):
     """Integer. The width of the current terminal."""
     ui = context.resource(mapping, b'ui')
     return ui.termwidth()
 
 
 @templatekeyword(b'user', requires={b'ctx'})
 def showuser(context, mapping):
     """String. The unmodified author of the changeset."""
     ctx = context.resource(mapping, b'ctx')
     return ctx.user()
 
 
 @templatekeyword(b'instabilities', requires={b'ctx'})
 def showinstabilities(context, mapping):
     """List of strings. Evolution instabilities affecting the changeset.
     (EXPERIMENTAL)
     """
     ctx = context.resource(mapping, b'ctx')
     return compatlist(
         context,
         mapping,
         b'instability',
         ctx.instabilities(),
         plural=b'instabilities',
     )
 
 
 @templatekeyword(b'verbosity', requires={b'ui'})
 def showverbosity(context, mapping):
     """String. The current output verbosity in 'debug', 'quiet', 'verbose',
     or ''."""
     ui = context.resource(mapping, b'ui')
     # see logcmdutil.changesettemplater for priority of these flags
     if ui.debugflag:
         return b'debug'
     elif ui.quiet:
         return b'quiet'
     elif ui.verbose:
         return b'verbose'
     return b''
 
 
 @templatekeyword(b'whyunstable', requires={b'repo', b'ctx'})
 def showwhyunstable(context, mapping):
     """List of dicts explaining all instabilities of a changeset.
     (EXPERIMENTAL)
     """
     repo = context.resource(mapping, b'repo')
     ctx = context.resource(mapping, b'ctx')
 
     def formatnode(ctx):
         return b'%s (%s)' % (scmutil.formatchangeid(ctx), ctx.phasestr())
 
     entries = obsutil.whyunstable(repo, ctx)
 
     for entry in entries:
         if entry.get(b'divergentnodes'):
             dnodes = entry[b'divergentnodes']
             dnhybrid = _hybrid(
                 None,
                 [dnode.hex() for dnode in dnodes],
                 lambda x: {b'ctx': repo[x]},
                 lambda x: formatnode(repo[x]),
             )
             entry[b'divergentnodes'] = dnhybrid
 
     tmpl = (
         b'{instability}:{if(divergentnodes, " ")}{divergentnodes} '
         b'{reason} {node|short}'
     )
     return templateutil.mappinglist(entries, tmpl=tmpl, sep=b'\n')
 
 
 def loadkeyword(ui, extname, registrarobj):
     """Load template keyword from specified registrarobj
     """
     for name, func in pycompat.iteritems(registrarobj._table):
         keywords[name] = func
 
 
 # tell hggettext to extract docstrings from these functions:
 i18nfunctions = keywords.values()

tests/test-obsmarker-template.t

@@ -1,3192 +1,3192 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=true
   > [templates]
   > obsfatesuccessors = "{if(successors, " as ")}{join(successors, ", ")}"
   > obsfateverb = "{obsfateverb(successors, markers)}"
   > obsfateoperations = "{if(obsfateoperations(markers), " using {join(obsfateoperations(markers), ", ")}")}"
   > obsfateusers = "{if(obsfateusers(markers), " by {join(obsfateusers(markers), ", ")}")}"
   > obsfatedate = "{if(obsfatedate(markers), "{ifeq(min(obsfatedate(markers)), max(obsfatedate(markers)), " (at {min(obsfatedate(markers))|isodate})", " (between {min(obsfatedate(markers))|isodate} and {max(obsfatedate(markers))|isodate})")}")}"
   > obsfatetempl = "{obsfateverb}{obsfateoperations}{obsfatesuccessors}{obsfateusers}{obsfatedate}; "
   > [alias]
   > tlog = log -G -T '{node|short}\
   >     \n  Predecessors: {predecessors}\
   >     \n  semi-colon: {join(predecessors, "; ")}\
   >     \n  json: {predecessors|json}\
   >     \n  map: {join(predecessors % "{rev}:{node}", " ")}\
   >     \n  Successors: {successorssets}\
   >     \n  multi-line: {join(successorssets, "\n  multi-line: ")}\
   >     \n  json: {successorssets|json}\n'
   > fatelog = log -G -T '{node|short}\n{if(succsandmarkers, "  Obsfate: {succsandmarkers % "{obsfatetempl}"} \n" )}'
   > fatelogjson = log -G -T '{node|short}\n{if(succsandmarkers, "  Obsfate: {succsandmarkers|json}\n")}'
   > fatelogkw = log -G -T '{node|short}\n{if(obsfate, "{obsfate % "  Obsfate: {fate}\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" --config devel.default-date="1234567890 0"
   $ hg commit --amend -m "A2" --config devel.default-date="987654321 0" --config devel.user.obsmarker=test2
 
   $ hg log --hidden -G
   @  changeset:   3:d004c8f274b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   2:a468dc9b3633
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 3:d004c8f274b9 by test2
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:a468dc9b3633
   |    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
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' was rewritten as: d004c8f274b9)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 3:d004c8f274b9
   |      multi-line: 3:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  d004c8f274b9
   |
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test, test2 (between 2001-04-19 04:25 +0000 and 2009-02-13 23:31 +0000);
   o  ea207398892e
   
 
   $ hg fatelogkw
   o  d004c8f274b9
   |
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test, test2
   o  ea207398892e
   
 
   $ hg log -G --config ui.logtemplate=
   o  changeset:   3:d004c8f274b9
   |  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
   |    obsolete:    rewritten using amend as 3:d004c8f274b9 by test, test2
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
   $ hg log -G -T "default"
   o  changeset:   3:d004c8f274b9
   |  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
   |    obsolete:    rewritten using amend as 3:d004c8f274b9 by test, test2
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg up 'desc(A1)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset a468dc9b3633
   (hidden revision 'a468dc9b3633' was rewritten as: d004c8f274b9)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  d004c8f274b9
   |    Predecessors: 2:a468dc9b3633
   |    semi-colon: 2:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 2:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  a468dc9b3633
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 3:d004c8f274b9
   |      multi-line: 3:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  d004c8f274b9
   |
   | @  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test2 (at 2001-04-19 04:25 +0000);
   o  ea207398892e
   
 Predecessors template should show all the predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   o  d004c8f274b9
   |    Predecessors: 2:a468dc9b3633
   |    semi-colon: 2:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 2:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  a468dc9b3633
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 3:d004c8f274b9
   |      multi-line: 3:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:a468dc9b3633
   |      multi-line: 2:a468dc9b3633
   |      json: [["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   o  d004c8f274b9
   |
   | @  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test2 (at 2001-04-19 04:25 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:a468dc9b3633 by test (at 2009-02-13 23:31 +0000);
   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
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg tlog --hidden
   @  d004c8f274b9
   |    Predecessors: 2:a468dc9b3633
   |    semi-colon: 2:a468dc9b3633
   |    json: ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]
   |    map: 2:a468dc9b36338b14fdb7825f55ce3df4e71517ad
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  a468dc9b3633
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 3:d004c8f274b9
   |      multi-line: 3:d004c8f274b9
   |      json: [["d004c8f274b9ec480a47a93c10dac5eee63adb78"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:a468dc9b3633
   |      multi-line: 2:a468dc9b3633
   |      json: [["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   @  d004c8f274b9
   |
   o  ea207398892e
   
 
   $ hg fatelog --hidden
   @  d004c8f274b9
   |
   | x  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test2 (at 2001-04-19 04:25 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:a468dc9b3633 by test (at 2009-02-13 23:31 +0000);
   o  ea207398892e
   
   $ hg fatelogjson --hidden
   @  d004c8f274b9
   |
   | x  a468dc9b3633
   |/     Obsfate: [{"markers": [["a468dc9b36338b14fdb7825f55ce3df4e71517ad", ["d004c8f274b9ec480a47a93c10dac5eee63adb78"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test2"]], [987654321.0, 0], null]], "successors": ["d004c8f274b9ec480a47a93c10dac5eee63adb78"]}]
   | x  471f378eab4c
   |/     Obsfate: [{"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"], 0, [["ef1", "9"], ["operation", "amend"], ["user", "test"]], [1234567890.0, 0], null]], "successors": ["a468dc9b36338b14fdb7825f55ce3df4e71517ad"]}]
   o  ea207398892e
   
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  d004c8f274b9
   |
   | x  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:a468dc9b3633
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  d004c8f274b9
   |
   | x  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test2
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:a468dc9b3633
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  d004c8f274b9
   |
   | x  a468dc9b3633
   |/     Obsfate: rewritten using amend as 3:d004c8f274b9 by test2 (at 2001-04-19 04:25 +0000)
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:a468dc9b3633 by test (at 2009-02-13 23:31 +0000)
   o  ea207398892e
   
 
   $ hg log -G -T "default" --hidden
   @  changeset:   3:d004c8f274b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   2:a468dc9b3633
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 3:d004c8f274b9 by test2
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:a468dc9b3633
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg log -G -T "default" --hidden -v
   @  changeset:   3:d004c8f274b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  files:       A0
   |  description:
   |  A2
   |
   |
   | x  changeset:   2:a468dc9b3633
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 3:d004c8f274b9 by test2 (at 2001-04-19 04:25 +0000)
   |    files:       A0
   |    description:
   |    A1
   |
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:a468dc9b3633 by test (at 2009-02-13 23:31 +0000)
   |    files:       A0
   |    description:
   |    A0
   |
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      files:       ROOT
      description:
      ROOT
   
   
 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"`
   1 new obsolescence markers
   obsoleted 1 changesets
 
   $ 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
   |    obsolete:    split as 2:337fec4d2edc, 3:f257fde29c7a
   |    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
   updated to hidden changeset 471597cad322
   (hidden revision '471597cad322' was split as: 337fec4d2edc, f257fde29c7a)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  f257fde29c7a
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  337fec4d2edc
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471597cad322
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:337fec4d2edc 3:f257fde29c7a
   |      multi-line: 2:337fec4d2edc 3:f257fde29c7a
   |      json: [["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | @  471597cad322
   |/     Obsfate: split as 2:337fec4d2edc, 3:f257fde29c7a by test (at 1970-01-01 00:00 +0000);
   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
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  337fec4d2edc
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  f257fde29c7a
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  337fec4d2edc
   |    Predecessors: 1:471597cad322
   |    semi-colon: 1:471597cad322
   |    json: ["471597cad322d1f659bb169751be9133dad92ef3"]
   |    map: 1:471597cad322d1f659bb169751be9133dad92ef3
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  471597cad322
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:337fec4d2edc 3:f257fde29c7a
   |      multi-line: 2:337fec4d2edc 3:f257fde29c7a
   |      json: [["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | x  471597cad322
   |/     Obsfate: split as 2:337fec4d2edc, 3:f257fde29c7a by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg fatelogjson --hidden
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | x  471597cad322
   |/     Obsfate: [{"markers": [["471597cad322d1f659bb169751be9133dad92ef3", ["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["337fec4d2edcf0e7a467e35f818234bc620068b5", "f257fde29c7a847c9b607f6e958656d0df0fb15c"]}]
   o  ea207398892e
   
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | x  471597cad322
   |/     Obsfate: split as 2:337fec4d2edc, 3:f257fde29c7a
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | x  471597cad322
   |/     Obsfate: split as 2:337fec4d2edc, 3:f257fde29c7a
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  f257fde29c7a
   |
   o  337fec4d2edc
   |
   | x  471597cad322
   |/     Obsfate: split as 2:337fec4d2edc, 3:f257fde29c7a by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
 
   $ hg log -G -T "default" --hidden
   @  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
   |    obsolete:    split as 2:337fec4d2edc, 3:f257fde29c7a
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 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)"`
   1 new obsolescence markers
   obsoleted 1 changesets
   1 new orphan changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
   1 new obsolescence markers
   obsoleted 1 changesets
 
   $ 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
   | |  obsolete:    rewritten as 3:eb5a0daa2192
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 3:eb5a0daa2192
   |    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
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  eb5a0daa2192
   |
   | @  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 0dec01379d3b
   (hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192)
 
 Predecessors template should show both predecessors as they should be both
 displayed
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  0dec01379d3b
   | |    Predecessors:
   | |    semi-colon:
   | |    json: []
   | |    map:
   | |    Successors: 3:eb5a0daa2192
   | |    multi-line: 3:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  eb5a0daa2192
   |
   | @  0dec01379d3b
   | |    Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   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
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 Predecessors template should show both predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  0dec01379d3b
   | |    Predecessors:
   | |    semi-colon:
   | |    json: []
   | |    map:
   | |    Successors: 3:eb5a0daa2192
   | |    multi-line: 3:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 3:eb5a0daa2192
   |      multi-line: 3:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   @  eb5a0daa2192
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 
   $ hg fatelogjson --hidden
   @  eb5a0daa2192
   |
   | x  0dec01379d3b
   | |    Obsfate: [{"markers": [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]}]
   | x  471f378eab4c
   |/     Obsfate: [{"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]}]
   o  ea207398892e
   
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  eb5a0daa2192
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:eb5a0daa2192
   | x  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  eb5a0daa2192
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:eb5a0daa2192
   | x  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  eb5a0daa2192
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000)
   | x  471f378eab4c
   |/     Obsfate: rewritten as 3:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   @  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
   | |  obsolete:    rewritten as 3:eb5a0daa2192
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 3:eb5a0daa2192
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 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
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    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
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' was rewritten as: fdf9bde5129a)
   $ hg commit --amend -m "A2"
   2 new content-divergent changesets
   $ hg log --hidden -G
   @  changeset:   3:65b757b745b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     A2
   |
   | *  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    instability: content-divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    obsolete:    rewritten using amend as 3:65b757b745b9
   |    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
   |  instability: content-divergent
   |  summary:     A3
   |
   | x  changeset:   3:65b757b745b9
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 4:019fadeab383
   |    summary:     A2
   |
   | *  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    instability: content-divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    obsolete:    rewritten using amend as 3:65b757b745b9
   |    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
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' has diverged)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   *  019fadeab383
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | *  fdf9bde5129a
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:fdf9bde5129a; 4:019fadeab383
   |      multi-line: 2:fdf9bde5129a
   |      multi-line: 4:019fadeab383
   |      json: [["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"], ["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
   $ hg fatelog
   *  019fadeab383
   |
   | *  fdf9bde5129a
   |/
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a by test (at 1970-01-01 00:00 +0000); rewritten using amend as 4:019fadeab383 by test (at 1970-01-01 00:00 +0000);
   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
   *  019fadeab383
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  fdf9bde5129a
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   *  019fadeab383
   |
   | @  fdf9bde5129a
   |/
   o  ea207398892e
   
 Predecessors template should the predecessors as we force their display with
 --hidden
   $ hg tlog --hidden
   *  019fadeab383
   |    Predecessors: 3:65b757b745b9
   |    semi-colon: 3:65b757b745b9
   |    json: ["65b757b745b935093c87a2bccd877521cccffcbd"]
   |    map: 3:65b757b745b935093c87a2bccd877521cccffcbd
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  65b757b745b9
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors: 4:019fadeab383
   |      multi-line: 4:019fadeab383
   |      json: [["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"]]
   | @  fdf9bde5129a
   |/     Predecessors: 1:471f378eab4c
   |      semi-colon: 1:471f378eab4c
   |      json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |      map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:fdf9bde5129a; 3:65b757b745b9
   |      multi-line: 2:fdf9bde5129a
   |      multi-line: 3:65b757b745b9
   |      json: [["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"], ["65b757b745b935093c87a2bccd877521cccffcbd"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   *  019fadeab383
   |
   | x  65b757b745b9
   |/     Obsfate: rewritten using amend as 4:019fadeab383 by test (at 1970-01-01 00:00 +0000);
   | @  fdf9bde5129a
   |/
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a by test (at 1970-01-01 00:00 +0000); rewritten using amend as 3:65b757b745b9 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 
   $ hg fatelogjson --hidden
   *  019fadeab383
   |
   | x  65b757b745b9
   |/     Obsfate: [{"markers": [["65b757b745b935093c87a2bccd877521cccffcbd", ["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["019fadeab383f6699fa83ad7bdb4d82ed2c0e5ab"]}]
   | @  fdf9bde5129a
   |/
   | x  471f378eab4c
   |/     Obsfate: [{"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"]}, {"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["65b757b745b935093c87a2bccd877521cccffcbd"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["65b757b745b935093c87a2bccd877521cccffcbd"]}]
   o  ea207398892e
   
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   *  019fadeab383
   |
   | x  65b757b745b9
   |/     Obsfate: rewritten using amend as 4:019fadeab383
   | @  fdf9bde5129a
   |/
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a
   |      Obsfate: rewritten using amend as 3:65b757b745b9
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   *  019fadeab383
   |
   | x  65b757b745b9
   |/     Obsfate: rewritten using amend as 4:019fadeab383
   | @  fdf9bde5129a
   |/
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a
   |      Obsfate: rewritten using amend as 3:65b757b745b9
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   *  019fadeab383
   |
   | x  65b757b745b9
   |/     Obsfate: rewritten using amend as 4:019fadeab383 by test (at 1970-01-01 00:00 +0000)
   | @  fdf9bde5129a
   |/
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a by test (at 1970-01-01 00:00 +0000)
   |      Obsfate: rewritten using amend as 3:65b757b745b9 by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   *  changeset:   4:019fadeab383
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     A3
   |
   | x  changeset:   3:65b757b745b9
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 4:019fadeab383
   |    summary:     A2
   |
   | @  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    instability: content-divergent
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    obsolete:    rewritten using amend as 3:65b757b745b9
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 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
   |    obsolete:    rewritten using amend as 3:b7ea6d14e664
   |    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)"`
   1 new obsolescence markers
   obsoleted 1 changesets
   1 new orphan changesets
   $ hg debugobsolete `getid "desc(B1)"` `getid "desc(C0)"`
   1 new obsolescence markers
   obsoleted 1 changesets
 
   $ 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
   | |  obsolete:    rewritten as 4:eb5a0daa2192
   | |  summary:     B1
   | |
   | | x  changeset:   2:0dec01379d3b
   | |/   user:        test
   | |    date:        Thu Jan 01 00:00:00 1970 +0000
   | |    obsolete:    rewritten using amend as 3:b7ea6d14e664
   | |    summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 4:eb5a0daa2192
   |    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
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' was rewritten as: eb5a0daa2192)
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  eb5a0daa2192
   |
   | @  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg up 'desc(B0)' --hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 0dec01379d3b
   (hidden revision '0dec01379d3b' was rewritten as: eb5a0daa2192)
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 2:0dec01379d3b 1:471f378eab4c
   |    semi-colon: 2:0dec01379d3b; 1:471f378eab4c
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", "471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  0dec01379d3b
   | |    Predecessors:
   | |    semi-colon:
   | |    json: []
   | |    map:
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  eb5a0daa2192
   |
   | @  0dec01379d3b
   | |    Obsfate: rewritten using amend as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg up 'desc(B1)' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset b7ea6d14e664
   (hidden revision 'b7ea6d14e664' was rewritten as: eb5a0daa2192)
 
 Predecessors template should both predecessors as they are visible
   $ hg tlog
   o  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c 3:b7ea6d14e664
   |    semi-colon: 1:471f378eab4c; 3:b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874 3:b7ea6d14e664bdc8922221f7992631b50da3fb07
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  b7ea6d14e664
   | |    Predecessors:
   | |    semi-colon:
   | |    json: []
   | |    map:
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  eb5a0daa2192
   |
   | @  b7ea6d14e664
   | |    Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   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
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   @  eb5a0daa2192
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  eb5a0daa2192
   |    Predecessors: 1:471f378eab4c 3:b7ea6d14e664
   |    semi-colon: 1:471f378eab4c; 3:b7ea6d14e664
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874", "b7ea6d14e664bdc8922221f7992631b50da3fb07"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874 3:b7ea6d14e664bdc8922221f7992631b50da3fb07
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  b7ea6d14e664
   | |    Predecessors: 2:0dec01379d3b
   | |    semi-colon: 2:0dec01379d3b
   | |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   | |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   | |    Successors: 4:eb5a0daa2192
   | |    multi-line: 4:eb5a0daa2192
   | |    json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   | | x  0dec01379d3b
   | |/     Predecessors:
   | |      semi-colon:
   | |      json: []
   | |      map:
   | |      Successors: 3:b7ea6d14e664
   | |      multi-line: 3:b7ea6d14e664
   | |      json: [["b7ea6d14e664bdc8922221f7992631b50da3fb07"]]
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 4:eb5a0daa2192
   |      multi-line: 4:eb5a0daa2192
   |      json: [["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   @  eb5a0daa2192
   |
   | x  b7ea6d14e664
   | |    Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   | | x  0dec01379d3b
   | |/     Obsfate: rewritten using amend as 3:b7ea6d14e664 by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 
   $ hg fatelogjson --hidden
   @  eb5a0daa2192
   |
   | x  b7ea6d14e664
   | |    Obsfate: [{"markers": [["b7ea6d14e664bdc8922221f7992631b50da3fb07", ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]}]
   | | x  0dec01379d3b
   | |/     Obsfate: [{"markers": [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", ["b7ea6d14e664bdc8922221f7992631b50da3fb07"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["b7ea6d14e664bdc8922221f7992631b50da3fb07"]}]
   | x  471f378eab4c
   |/     Obsfate: [{"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["eb5a0daa21923bbf8caeb2c42085b9e463861fd0"]}]
   o  ea207398892e
   
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  eb5a0daa2192
   |
   | x  b7ea6d14e664
   | |    Obsfate: rewritten as 4:eb5a0daa2192
   | | x  0dec01379d3b
   | |/     Obsfate: rewritten using amend as 3:b7ea6d14e664
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  eb5a0daa2192
   |
   | x  b7ea6d14e664
   | |    Obsfate: rewritten as 4:eb5a0daa2192
   | | x  0dec01379d3b
   | |/     Obsfate: rewritten using amend as 3:b7ea6d14e664
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  eb5a0daa2192
   |
   | x  b7ea6d14e664
   | |    Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000)
   | | x  0dec01379d3b
   | |/     Obsfate: rewritten using amend as 3:b7ea6d14e664 by test (at 1970-01-01 00:00 +0000)
   | x  471f378eab4c
   |/     Obsfate: rewritten as 4:eb5a0daa2192 by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   @  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
   | |  obsolete:    rewritten as 4:eb5a0daa2192
   | |  summary:     B1
   | |
   | | x  changeset:   2:0dec01379d3b
   | |/   user:        test
   | |    date:        Thu Jan 01 00:00:00 1970 +0000
   | |    obsolete:    rewritten using amend as 3:b7ea6d14e664
   | |    summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 4:eb5a0daa2192
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 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
   |    obsolete:    rewritten using amend as 3:7a230b46bf61
   |    summary:     A1
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    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
   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
   obsoleted 1 changesets
   new changesets 7a230b46bf61 (1 drafts)
   (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
   |    obsolete:    rewritten using amend as 2:7a230b46bf61
   |    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) {'ef1': '1', 'operation': 'amend', 'user': 'test'}
   fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e 7a230b46bf61e50b30308c6cfd7bd1269ef54702 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '1', 'operation': 'amend', 'user': 'test'}
 
 Check templates
 ---------------
 
 Predecessors template should show current revision as it is the working copy
   $ hg tlog
   o  7a230b46bf61
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:7a230b46bf61
   |      multi-line: 2:7a230b46bf61
   |      json: [["7a230b46bf61e50b30308c6cfd7bd1269ef54702"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  7a230b46bf61
   |
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:7a230b46bf61 by test (at 1970-01-01 00:00 +0000);
   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
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   @  7a230b46bf61
   |
   o  ea207398892e
   
 Predecessors template should show all predecessors as we force their display
 with --hidden
   $ hg tlog --hidden
   @  7a230b46bf61
   |    Predecessors: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 2:7a230b46bf61
   |      multi-line: 2:7a230b46bf61
   |      json: [["7a230b46bf61e50b30308c6cfd7bd1269ef54702"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog --hidden
   @  7a230b46bf61
   |
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:7a230b46bf61 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  7a230b46bf61
   |
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:7a230b46bf61
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  7a230b46bf61
   |
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:7a230b46bf61
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  7a230b46bf61
   |
   | x  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:7a230b46bf61 by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   @  changeset:   2:7a230b46bf61
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A2
   |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:7a230b46bf61
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 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)"`
   1 new obsolescence markers
   obsoleted 1 changesets
   1 new orphan changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(C0)"`
   1 new obsolescence markers
   obsoleted 1 changesets
   $ hg debugobsolete `getid "desc(B0)"` `getid "desc(A0)"`
   1 new obsolescence markers
 
 Check templates
 ---------------
 
   $ hg tlog
   @  f897c6137566
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   @  f897c6137566
   |
   o  ea207398892e
   
 
   $ hg up -r "desc(B0)" --hidden
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   updated to hidden changeset 0dec01379d3b
   (hidden revision '0dec01379d3b' is pruned)
   $ hg tlog
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  f897c6137566
   |
   | @  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566 by test (at 1970-01-01 00:00 +0000); rewritten as 1:471f378eab4c by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b by test (at 1970-01-01 00:00 +0000);
   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: 1:471f378eab4c
   |    semi-colon: 1:471f378eab4c
   |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  471f378eab4c
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors:
   |      multi-line:
   |      json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  f897c6137566
   |
   | @  471f378eab4c
   |/     Obsfate: pruned;
   o  ea207398892e
   
 
   $ hg up -r "desc(ROOT)" --hidden
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg tlog
   o  f897c6137566
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   @  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   o  f897c6137566
   |
   @  ea207398892e
   
 
   $ hg tlog --hidden
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   @  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566
   | |    Obsfate: rewritten as 1:471f378eab4c
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b
   @  ea207398892e
   
   $ hg fatelogkw --hidden
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566
   | |    Obsfate: rewritten as 1:471f378eab4c
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b
   @  ea207398892e
   
   $ hg fatelogkw --hidden -v
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566 by test (at 1970-01-01 00:00 +0000)
   | |    Obsfate: rewritten as 1:471f378eab4c by test (at 1970-01-01 00:00 +0000)
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b by test (at 1970-01-01 00:00 +0000)
   @  ea207398892e
   
   $ hg log -G -T "default" --hidden
   o  changeset:   3:f897c6137566
   |  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
   | |  obsolete:    rewritten as 3:f897c6137566
   | |  obsolete:    rewritten as 1:471f378eab4c
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 2:0dec01379d3b
   |    summary:     A0
   |
   @  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Test template with split + divergence with cycles
 =================================================
 
   $ hg log -G
   o  changeset:   3:f897c6137566
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   @  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg up
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Create a commit with three files
   $ touch A B C
   $ hg commit -A -m "Add A,B,C" A B C
 
 Split it
   $ hg up 3
   0 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ touch A
   $ hg commit -A -m "Add A,B,C" A
   created new head
 
   $ touch B
   $ hg commit -A -m "Add A,B,C" B
 
   $ touch C
   $ hg commit -A -m "Add A,B,C" C
 
   $ hg log -G
   @  changeset:   7:ba2ed02b0c9a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   6:4a004186e638
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   | o  changeset:   4:9bd10a0775e4
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
   $ hg debugobsolete `getid "4"` `getid "5"` `getid "6"` `getid "7"`
   1 new obsolescence markers
   obsoleted 1 changesets
   $ hg log -G
   @  changeset:   7:ba2ed02b0c9a
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   6:4a004186e638
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Diverge one of the splitted commit
 
   $ hg up 6
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg commit --amend -m "Add only B"
   1 new orphan changesets
 
   $ hg up 6 --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg commit --amend -m "Add B only"
   4 new content-divergent changesets
 
   $ hg log -G
   @  changeset:   9:0b997eb7ceee
   |  tag:         tip
   |  parent:      5:dd800401bd8c
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     Add B only
   |
   | *  changeset:   8:b18bc8331526
   |/   parent:      5:dd800401bd8c
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    instability: content-divergent
   |    summary:     Add only B
   |
   | *  changeset:   7:ba2ed02b0c9a
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  instability: orphan, content-divergent
   | |  summary:     Add A,B,C
   | |
   | x  changeset:   6:4a004186e638
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 8:b18bc8331526
   |    obsolete:    rewritten using amend as 9:0b997eb7ceee
   |    summary:     Add A,B,C
   |
   *  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     C0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Check templates
 ---------------
 
   $ hg tlog
   @  0b997eb7ceee
   |    Predecessors: 6:4a004186e638
   |    semi-colon: 6:4a004186e638
   |    json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |    map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | *  b18bc8331526
   |/     Predecessors: 6:4a004186e638
   |      semi-colon: 6:4a004186e638
   |      json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |      map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   | *  ba2ed02b0c9a
   | |    Predecessors:
   | |    semi-colon:
   | |    json: []
   | |    map:
   | |    Successors:
   | |    multi-line:
-  | |    json: ""
+  | |    json: []
   | x  4a004186e638
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 8:b18bc8331526; 9:0b997eb7ceee
   |      multi-line: 8:b18bc8331526
   |      multi-line: 9:0b997eb7ceee
   |      json: [["b18bc8331526a22cbb1801022bd1555bf291c48b"], ["0b997eb7ceeee06200a02f8aab185979092d514e"]]
   *  dd800401bd8c
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  f897c6137566
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
   $ hg fatelog
   @  0b997eb7ceee
   |
   | *  b18bc8331526
   |/
   | *  ba2ed02b0c9a
   | |
   | x  4a004186e638
   |/     Obsfate: rewritten using amend as 8:b18bc8331526 by test (at 1970-01-01 00:00 +0000); rewritten using amend as 9:0b997eb7ceee by test (at 1970-01-01 00:00 +0000);
   *  dd800401bd8c
   |
   o  f897c6137566
   |
   o  ea207398892e
   
   $ hg tlog --hidden
   @  0b997eb7ceee
   |    Predecessors: 6:4a004186e638
   |    semi-colon: 6:4a004186e638
   |    json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |    map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | *  b18bc8331526
   |/     Predecessors: 6:4a004186e638
   |      semi-colon: 6:4a004186e638
   |      json: ["4a004186e63889f20cb16434fcbd72220bd1eace"]
   |      map: 6:4a004186e63889f20cb16434fcbd72220bd1eace
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   | *  ba2ed02b0c9a
   | |    Predecessors: 4:9bd10a0775e4
   | |    semi-colon: 4:9bd10a0775e4
   | |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   | |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | |    Successors:
   | |    multi-line:
-  | |    json: ""
+  | |    json: []
   | x  4a004186e638
   |/     Predecessors: 4:9bd10a0775e4
   |      semi-colon: 4:9bd10a0775e4
   |      json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |      map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |      Successors: 8:b18bc8331526; 9:0b997eb7ceee
   |      multi-line: 8:b18bc8331526
   |      multi-line: 9:0b997eb7ceee
   |      json: [["b18bc8331526a22cbb1801022bd1555bf291c48b"], ["0b997eb7ceeee06200a02f8aab185979092d514e"]]
   *  dd800401bd8c
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  9bd10a0775e4
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 5:dd800401bd8c 6:4a004186e638 7:ba2ed02b0c9a
   |      multi-line: 5:dd800401bd8c 6:4a004186e638 7:ba2ed02b0c9a
   |      json: [["dd800401bd8c79d815329277739e433e883f784e", "4a004186e63889f20cb16434fcbd72220bd1eace", "ba2ed02b0c9a56b9fdbc4e79c7e57866984d8a1f"]]
   o  f897c6137566
   |    Predecessors: 2:0dec01379d3b
   |    semi-colon: 2:0dec01379d3b
   |    json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |    map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | x  0dec01379d3b
   | |    Predecessors: 1:471f378eab4c
   | |    semi-colon: 1:471f378eab4c
   | |    json: ["471f378eab4c5e25f6c77f785b27c936efb22874"]
   | |    map: 1:471f378eab4c5e25f6c77f785b27c936efb22874
   | |    Successors: 3:f897c6137566; 1:471f378eab4c
   | |    multi-line: 3:f897c6137566
   | |    multi-line: 1:471f378eab4c
   | |    json: [["f897c6137566320b081514b4c7227ecc3d384b39"], ["471f378eab4c5e25f6c77f785b27c936efb22874"]]
   | x  471f378eab4c
   |/     Predecessors: 2:0dec01379d3b
   |      semi-colon: 2:0dec01379d3b
   |      json: ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]
   |      map: 2:0dec01379d3be6318c470ead31b1fe7ae7cb53d5
   |      Successors: 2:0dec01379d3b
   |      multi-line: 2:0dec01379d3b
   |      json: [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]]
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
   $ hg fatelog --hidden
   @  0b997eb7ceee
   |
   | *  b18bc8331526
   |/
   | *  ba2ed02b0c9a
   | |
   | x  4a004186e638
   |/     Obsfate: rewritten using amend as 8:b18bc8331526 by test (at 1970-01-01 00:00 +0000); rewritten using amend as 9:0b997eb7ceee by test (at 1970-01-01 00:00 +0000);
   *  dd800401bd8c
   |
   | x  9bd10a0775e4
   |/     Obsfate: split as 5:dd800401bd8c, 6:4a004186e638, 7:ba2ed02b0c9a by test (at 1970-01-01 00:00 +0000);
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566 by test (at 1970-01-01 00:00 +0000); rewritten as 1:471f378eab4c by test (at 1970-01-01 00:00 +0000);
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg fatelogjson --hidden
   @  0b997eb7ceee
   |
   | *  b18bc8331526
   |/
   | *  ba2ed02b0c9a
   | |
   | x  4a004186e638
   |/     Obsfate: [{"markers": [["4a004186e63889f20cb16434fcbd72220bd1eace", ["b18bc8331526a22cbb1801022bd1555bf291c48b"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["b18bc8331526a22cbb1801022bd1555bf291c48b"]}, {"markers": [["4a004186e63889f20cb16434fcbd72220bd1eace", ["0b997eb7ceeee06200a02f8aab185979092d514e"], 0, [["ef1", "1"], ["operation", "amend"], ["user", "test"]], [0.0, 0], null]], "successors": ["0b997eb7ceeee06200a02f8aab185979092d514e"]}]
   *  dd800401bd8c
   |
   | x  9bd10a0775e4
   |/     Obsfate: [{"markers": [["9bd10a0775e478708cada5f176ec6de654359ce7", ["dd800401bd8c79d815329277739e433e883f784e", "4a004186e63889f20cb16434fcbd72220bd1eace", "ba2ed02b0c9a56b9fdbc4e79c7e57866984d8a1f"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["dd800401bd8c79d815329277739e433e883f784e", "4a004186e63889f20cb16434fcbd72220bd1eace", "ba2ed02b0c9a56b9fdbc4e79c7e57866984d8a1f"]}]
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: [{"markers": [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", ["f897c6137566320b081514b4c7227ecc3d384b39"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["f897c6137566320b081514b4c7227ecc3d384b39"]}, {"markers": [["0dec01379d3be6318c470ead31b1fe7ae7cb53d5", ["471f378eab4c5e25f6c77f785b27c936efb22874"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["471f378eab4c5e25f6c77f785b27c936efb22874"]}]
   | x  471f378eab4c
   |/     Obsfate: [{"markers": [["471f378eab4c5e25f6c77f785b27c936efb22874", ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"], 0, [["user", "test"]], [0.0, 0], null]], "successors": ["0dec01379d3be6318c470ead31b1fe7ae7cb53d5"]}]
   o  ea207398892e
   
   $ hg up --hidden 4
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 9bd10a0775e4
   (hidden revision '9bd10a0775e4' has diverged)
   $ hg rebase -r 7 -d 8 --config extensions.rebase=
   rebasing 7:ba2ed02b0c9a "Add A,B,C"
   $ hg tlog
   *  eceed8f98ffc
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | *  0b997eb7ceee
   | |    Predecessors: 4:9bd10a0775e4
   | |    semi-colon: 4:9bd10a0775e4
   | |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   | |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   | |    Successors:
   | |    multi-line:
-  | |    json: ""
+  | |    json: []
   * |  b18bc8331526
   |/     Predecessors: 4:9bd10a0775e4
   |      semi-colon: 4:9bd10a0775e4
   |      json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |      map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |      Successors:
   |      multi-line:
-  |      json: ""
+  |      json: []
   *  dd800401bd8c
   |    Predecessors: 4:9bd10a0775e4
   |    semi-colon: 4:9bd10a0775e4
   |    json: ["9bd10a0775e478708cada5f176ec6de654359ce7"]
   |    map: 4:9bd10a0775e478708cada5f176ec6de654359ce7
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   | @  9bd10a0775e4
   |/     Predecessors:
   |      semi-colon:
   |      json: []
   |      map:
   |      Successors: 5:dd800401bd8c 9:0b997eb7ceee 10:eceed8f98ffc; 5:dd800401bd8c 8:b18bc8331526 10:eceed8f98ffc
   |      multi-line: 5:dd800401bd8c 9:0b997eb7ceee 10:eceed8f98ffc
   |      multi-line: 5:dd800401bd8c 8:b18bc8331526 10:eceed8f98ffc
   |      json: [["dd800401bd8c79d815329277739e433e883f784e", "0b997eb7ceeee06200a02f8aab185979092d514e", "eceed8f98ffc4186032e29a6542ab98888ebf68d"], ["dd800401bd8c79d815329277739e433e883f784e", "b18bc8331526a22cbb1801022bd1555bf291c48b", "eceed8f98ffc4186032e29a6542ab98888ebf68d"]]
   o  f897c6137566
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
-  |    json: ""
+  |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
   $ hg fatelog
   *  eceed8f98ffc
   |
   | *  0b997eb7ceee
   | |
   * |  b18bc8331526
   |/
   *  dd800401bd8c
   |
   | @  9bd10a0775e4
   |/     Obsfate: split using amend, rebase as 5:dd800401bd8c, 9:0b997eb7ceee, 10:eceed8f98ffc by test (at 1970-01-01 00:00 +0000); split using amend, rebase as 5:dd800401bd8c, 8:b18bc8331526, 10:eceed8f98ffc by test (at 1970-01-01 00:00 +0000);
   o  f897c6137566
   |
   o  ea207398892e
   
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   *  eceed8f98ffc
   |
   | *  0b997eb7ceee
   | |
   * |  b18bc8331526
   |/
   | x  ba2ed02b0c9a
   | |    Obsfate: rewritten using rebase as 10:eceed8f98ffc
   | x  4a004186e638
   |/     Obsfate: rewritten using amend as 8:b18bc8331526
   |      Obsfate: rewritten using amend as 9:0b997eb7ceee
   *  dd800401bd8c
   |
   | @  9bd10a0775e4
   |/     Obsfate: split as 5:dd800401bd8c, 6:4a004186e638, 7:ba2ed02b0c9a
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566
   | |    Obsfate: rewritten as 1:471f378eab4c
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   *  eceed8f98ffc
   |
   | *  0b997eb7ceee
   | |
   * |  b18bc8331526
   |/
   | x  ba2ed02b0c9a
   | |    Obsfate: rewritten using rebase as 10:eceed8f98ffc
   | x  4a004186e638
   |/     Obsfate: rewritten using amend as 8:b18bc8331526
   |      Obsfate: rewritten using amend as 9:0b997eb7ceee
   *  dd800401bd8c
   |
   | @  9bd10a0775e4
   |/     Obsfate: split as 5:dd800401bd8c, 6:4a004186e638, 7:ba2ed02b0c9a
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566
   | |    Obsfate: rewritten as 1:471f378eab4c
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   *  eceed8f98ffc
   |
   | *  0b997eb7ceee
   | |
   * |  b18bc8331526
   |/
   | x  ba2ed02b0c9a
   | |    Obsfate: rewritten using rebase as 10:eceed8f98ffc by test (at 1970-01-01 00:00 +0000)
   | x  4a004186e638
   |/     Obsfate: rewritten using amend as 8:b18bc8331526 by test (at 1970-01-01 00:00 +0000)
   |      Obsfate: rewritten using amend as 9:0b997eb7ceee by test (at 1970-01-01 00:00 +0000)
   *  dd800401bd8c
   |
   | @  9bd10a0775e4
   |/     Obsfate: split as 5:dd800401bd8c, 6:4a004186e638, 7:ba2ed02b0c9a by test (at 1970-01-01 00:00 +0000)
   o  f897c6137566
   |
   | x  0dec01379d3b
   | |    Obsfate: rewritten as 3:f897c6137566 by test (at 1970-01-01 00:00 +0000)
   | |    Obsfate: rewritten as 1:471f378eab4c by test (at 1970-01-01 00:00 +0000)
   | x  471f378eab4c
   |/     Obsfate: rewritten as 2:0dec01379d3b by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   *  changeset:   10:eceed8f98ffc
   |  tag:         tip
   |  parent:      8:b18bc8331526
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     Add A,B,C
   |
   | *  changeset:   9:0b997eb7ceee
   | |  parent:      5:dd800401bd8c
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  instability: content-divergent
   | |  summary:     Add B only
   | |
   * |  changeset:   8:b18bc8331526
   |/   parent:      5:dd800401bd8c
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    instability: content-divergent
   |    summary:     Add only B
   |
   | x  changeset:   7:ba2ed02b0c9a
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  obsolete:    rewritten using rebase as 10:eceed8f98ffc
   | |  summary:     Add A,B,C
   | |
   | x  changeset:   6:4a004186e638
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 8:b18bc8331526
   |    obsolete:    rewritten using amend as 9:0b997eb7ceee
   |    summary:     Add A,B,C
   |
   *  changeset:   5:dd800401bd8c
   |  parent:      3:f897c6137566
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  instability: content-divergent
   |  summary:     Add A,B,C
   |
   | @  changeset:   4:9bd10a0775e4
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    split as 5:dd800401bd8c, 6:4a004186e638, 7:ba2ed02b0c9a
   |    summary:     Add A,B,C
   |
   o  changeset:   3:f897c6137566
   |  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
   | |  obsolete:    rewritten as 3:f897c6137566
   | |  obsolete:    rewritten as 1:471f378eab4c
   | |  summary:     B0
   | |
   | x  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten as 2:0dec01379d3b
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Test templates with pruned commits
 ==================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/templates-local-prune
   $ cd $TESTTMP/templates-local-prune
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg debugobsolete --record-parent `getid "."`
   1 new obsolescence markers
   obsoleted 1 changesets
 
 Check output
 ------------
 
   $ hg up "desc(A0)" --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg tlog
   @  471f378eab4c
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
   |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
   $ hg fatelog
   @  471f378eab4c
   |    Obsfate: pruned by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 Test templates with multiple pruned commits
 ===========================================
 
 Test setup
 ----------
 
   $ hg init $TESTTMP/multiple-local-prune
   $ cd $TESTTMP/multiple-local-prune
   $ mkcommit ROOT
   $ mkcommit A0
   $ hg commit --amend -m "A1"
   $ hg debugobsolete --record-parent `getid "."`
   1 new obsolescence markers
   obsoleted 1 changesets
 
   $ hg up -r "desc(A0)" --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' is pruned)
   $ hg commit --amend -m "A2"
   $ hg debugobsolete --record-parent `getid "."`
   1 new obsolescence markers
   obsoleted 1 changesets
 
 Check output
 ------------
 
   $ hg up "desc(A0)" --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 471f378eab4c
   (hidden revision '471f378eab4c' is pruned)
   $ hg tlog
   @  471f378eab4c
   |    Predecessors:
   |    semi-colon:
   |    json: []
   |    map:
   |    Successors:
   |    multi-line:
   |    json: []
   o  ea207398892e
        Predecessors:
        semi-colon:
        json: []
        map:
        Successors:
        multi-line:
-       json: ""
+       json: []
 
 # todo: the obsfate output is not ideal
   $ hg fatelog
   @  471f378eab4c
   |    Obsfate: pruned;
   o  ea207398892e
   
   $ hg fatelog --hidden
   x  65b757b745b9
   |    Obsfate: pruned by test (at 1970-01-01 00:00 +0000);
   | x  fdf9bde5129a
   |/     Obsfate: pruned by test (at 1970-01-01 00:00 +0000);
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a by test (at 1970-01-01 00:00 +0000); rewritten using amend as 3:65b757b745b9 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   x  65b757b745b9
   |    Obsfate: pruned
   | x  fdf9bde5129a
   |/     Obsfate: pruned
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a
   |      Obsfate: rewritten using amend as 3:65b757b745b9
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   x  65b757b745b9
   |    Obsfate: pruned
   | x  fdf9bde5129a
   |/     Obsfate: pruned
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a
   |      Obsfate: rewritten using amend as 3:65b757b745b9
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   x  65b757b745b9
   |    Obsfate: pruned by test (at 1970-01-01 00:00 +0000)
   | x  fdf9bde5129a
   |/     Obsfate: pruned by test (at 1970-01-01 00:00 +0000)
   | @  471f378eab4c
   |/     Obsfate: rewritten using amend as 2:fdf9bde5129a by test (at 1970-01-01 00:00 +0000)
   |      Obsfate: rewritten using amend as 3:65b757b745b9 by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
 
   $ hg log -G -T "default" --hidden
   x  changeset:   3:65b757b745b9
   |  tag:         tip
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  obsolete:    pruned
   |  summary:     A2
   |
   | x  changeset:   2:fdf9bde5129a
   |/   parent:      0:ea207398892e
   |    user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    pruned
   |    summary:     A1
   |
   | @  changeset:   1:471f378eab4c
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    rewritten using amend as 2:fdf9bde5129a
   |    obsolete:    rewritten using amend as 3:65b757b745b9
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 Check that {negrev} shows usable negative revisions despite hidden commits
 
   $ hg log -G -T "{negrev}\n"
   @  -3
   |
   o  -4
   
 
   $ hg log -G -T "{negrev}\n" --hidden
   x  -1
   |
   | x  -2
   |/
   | @  -3
   |/
   o  -4
   
 
 Test templates with splitted and pruned commit
 ==============================================
 
   $ hg init $TESTTMP/templates-local-split-prune
   $ cd $TESTTMP/templates-local-split-prune
   $ 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 "A1"
   adding a
   created new head
   $ echo 43 >> b
   $ hg commit -A -m "A2"
   adding b
   $ hg debugobsolete `getid "1"` `getid "2"` `getid "3"`
   1 new obsolescence markers
   obsoleted 1 changesets
 
 # Simulate prune
   $ hg debugobsolete --record-parent `getid "."`
   1 new obsolescence markers
   obsoleted 1 changesets
 
   $ hg log --hidden -G
   @  changeset:   3:0d0ef4bdf70e
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  obsolete:    pruned
   |  summary:     A2
   |
   o  changeset:   2:617adc3a144c
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A1
   |
   | x  changeset:   1:471597cad322
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    split as 2:617adc3a144c, 3:0d0ef4bdf70e
   |    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
   updated to hidden changeset 471597cad322
   (hidden revision '471597cad322' was rewritten as: 617adc3a144c)
 
 # todo: the obsfate output is not ideal
   $ hg fatelog
   o  617adc3a144c
   |
   | @  471597cad322
   |/     Obsfate: rewritten as 2:617adc3a144c by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg up -r 'desc("A2")' --hidden
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updated to hidden changeset 0d0ef4bdf70e
   (hidden revision '0d0ef4bdf70e' is pruned)
 
   $ hg fatelog --hidden
   @  0d0ef4bdf70e
   |    Obsfate: pruned by test (at 1970-01-01 00:00 +0000);
   o  617adc3a144c
   |
   | x  471597cad322
   |/     Obsfate: split as 2:617adc3a144c, 3:0d0ef4bdf70e by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
 
 Check other fatelog implementations
 -----------------------------------
 
   $ hg fatelogkw --hidden -q
   @  0d0ef4bdf70e
   |    Obsfate: pruned
   o  617adc3a144c
   |
   | x  471597cad322
   |/     Obsfate: split as 2:617adc3a144c, 3:0d0ef4bdf70e
   o  ea207398892e
   
   $ hg fatelogkw --hidden
   @  0d0ef4bdf70e
   |    Obsfate: pruned
   o  617adc3a144c
   |
   | x  471597cad322
   |/     Obsfate: split as 2:617adc3a144c, 3:0d0ef4bdf70e
   o  ea207398892e
   
   $ hg fatelogkw --hidden -v
   @  0d0ef4bdf70e
   |    Obsfate: pruned by test (at 1970-01-01 00:00 +0000)
   o  617adc3a144c
   |
   | x  471597cad322
   |/     Obsfate: split as 2:617adc3a144c, 3:0d0ef4bdf70e by test (at 1970-01-01 00:00 +0000)
   o  ea207398892e
   
   $ hg log -G -T "default" --hidden
   @  changeset:   3:0d0ef4bdf70e
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  obsolete:    pruned
   |  summary:     A2
   |
   o  changeset:   2:617adc3a144c
   |  parent:      0:ea207398892e
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     A1
   |
   | x  changeset:   1:471597cad322
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    obsolete:    split as 2:617adc3a144c, 3:0d0ef4bdf70e
   |    summary:     A0
   |
   o  changeset:   0:ea207398892e
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     ROOT
   
 
 Test metadata encoding (issue5754)
 ==================================
 
   $ hg init $TESTTMP/metadata-encoding
   $ cd $TESTTMP/metadata-encoding
   $ cat <<'EOF' >> .hg/hgrc
   > [extensions]
   > amend =
   > EOF
   $ "$PYTHON" <<'EOF'
   > with open('test1', 'wb') as f:
   >    f.write(b't\xe8st1') and None
   > with open('test2', 'wb') as f:
   >    f.write(b't\xe8st2') and None
   > EOF
   $ mkcommit ROOT
   $ ( HGENCODING=latin-1 HGUSER="`cat test1`" mkcommit A0 )
   $ echo 42 >> A0
   $ HGENCODING=latin-1 hg amend -m "A1" --note "`cat test2`"
   $ HGENCODING=latin-1 hg amend -m "A2" \
   > --config devel.user.obsmarker="`cat test2`"
   $ mkcommit B0
   $ HGENCODING=latin-1 hg debugobsolete -u "`cat test2`" "`getid 'desc(B0)'`"
   1 new obsolescence markers
   obsoleted 1 changesets
 
 metadata should be stored in UTF-8, and debugobsolete doesn't decode it to
 local encoding since the command is supposed to show unmodified content:
 
   $ HGENCODING=latin-1 hg debugobsolete
   5f66a482f0bb2fcaccfc215554ad5eb9f40b50f5 718c0d00cee1429bdb73064e0d88908c601507a8 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '9', 'note': 't\xc3\xa8st2', 'operation': 'amend', 'user': 'test'}
   718c0d00cee1429bdb73064e0d88908c601507a8 1132562159b35bb27e1d6b80c80ee94a1659a4da 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '1', 'operation': 'amend', 'user': 't\xc3\xa8st2'}
   8f82db6f991db367fdbb3b6dba5e187ecc3ebd96 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 't\xc3\xa8st2'}
 
 metadata should be converted back to local encoding when displaying:
 
   $ HGENCODING=latin-1 hg fatelog --hidden
   @  8f82db6f991d
   |    Obsfate: pruned by t\xe8st2 (at 1970-01-01 00:00 +0000); (esc)
   o  1132562159b3
   |
   | x  718c0d00cee1
   |/     Obsfate: rewritten using amend as 3:1132562159b3 by t\xe8st2 (at 1970-01-01 00:00 +0000); (esc)
   | x  5f66a482f0bb
   |/     Obsfate: rewritten using amend as 2:718c0d00cee1 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ HGENCODING=utf-8 hg fatelog --hidden
   @  8f82db6f991d
   |    Obsfate: pruned by t\xc3\xa8st2 (at 1970-01-01 00:00 +0000); (esc)
   o  1132562159b3
   |
   | x  718c0d00cee1
   |/     Obsfate: rewritten using amend as 3:1132562159b3 by t\xc3\xa8st2 (at 1970-01-01 00:00 +0000); (esc)
   | x  5f66a482f0bb
   |/     Obsfate: rewritten using amend as 2:718c0d00cee1 by test (at 1970-01-01 00:00 +0000);
   o  ea207398892e
   
   $ hg log -G -T "{negrev}\n"
   @  -1
   |
   o  -2
   |
   o  -5