rebase: choose default destination the same way as 'hg merge' (BC)

This changeset finally make 'hg rebase' choose its default destination using the
same logic as 'hg merge'. The previous default was "tipmost changeset on the
current branch", the new default is "the other head if there is only one".  This
change has multiple consequences:

- Multiple tests which were not rebasing anything (rebasing from tipmost head)
  are now rebasing on the other "lower" branch. This is the expected new
  behavior.

- A test is now explicitly aborting when there is too many heads on the branch.
  This is the expected behavior.

- We gained a better detection of the "nothing to rebase" case while performing
  'hg pull --rebase' so the message have been updated. Making clearer than an
  update was performed and why. This is beneficial side-effect.

- Rebasing from an active bookmark will behave the same as 'hg merge' from a
  bookmark.

hgext/rebase.py

@@ -1,1312 +1,1328
 # rebase.py - rebasing feature for mercurial
 #
 # Copyright 2008 Stefano Tortarolo <stefano.tortarolo at gmail dot com>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 '''command to move sets of revisions to a different ancestor
 
 This extension lets you rebase changesets in an existing Mercurial
 repository.
 
 For more information:
 https://mercurial-scm.org/wiki/RebaseExtension
 '''
 
 from mercurial import hg, util, repair, merge, cmdutil, commands, bookmarks
 from mercurial import extensions, patch, scmutil, phases, obsolete, error
 from mercurial import copies, destutil, repoview, revset
 from mercurial.commands import templateopts
 from mercurial.node import nullrev, nullid, hex, short
 from mercurial.lock import release
 from mercurial.i18n import _
 import os, errno
 
 # The following constants are used throughout the rebase module. The ordering of
 # their values must be maintained.
 
 # Indicates that a revision needs to be rebased
 revtodo = -1
 nullmerge = -2
 revignored = -3
 # successor in rebase destination
 revprecursor = -4
 # plain prune (no successor)
 revpruned = -5
 revskipped = (revignored, revprecursor, revpruned)
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 # Note for extension authors: ONLY specify testedwith = 'internal' for
 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
 # be specifying the version(s) of Mercurial they are tested with, or
 # leave the attribute unspecified.
 testedwith = 'internal'
 
 def _nothingtorebase():
     return 1
 
 def _savegraft(ctx, extra):
     s = ctx.extra().get('source', None)
     if s is not None:
         extra['source'] = s
     s = ctx.extra().get('intermediate-source', None)
     if s is not None:
         extra['intermediate-source'] = s
 
 def _savebranch(ctx, extra):
     extra['branch'] = ctx.branch()
 
 def _makeextrafn(copiers):
     """make an extrafn out of the given copy-functions.
 
     A copy function takes a context and an extra dict, and mutates the
     extra dict as needed based on the given context.
     """
     def extrafn(ctx, extra):
         for c in copiers:
             c(ctx, extra)
     return extrafn
 
-def _destrebase(repo):
-    # Destination defaults to the latest revision in the
-    # current branch
-    branch = repo[None].branch()
-    return repo[branch].rev()
+def _destrebase(repo, sourceset):
+    """small wrapper around destmerge to pass the right extra args
+
+    Please wrap destutil.destmerge instead."""
+    return destutil.destmerge(repo, action='rebase', sourceset=sourceset,
+                              onheadcheck=False)
 
 revsetpredicate = revset.extpredicate()
 
 @revsetpredicate('_destrebase')
 def _revsetdestrebase(repo, subset, x):
     # ``_rebasedefaultdest()``
 
     # default destination for rebase.
     # # XXX: Currently private because I expect the signature to change.
-    # # XXX: - taking rev as arguments,
     # # XXX: - bailing out in case of ambiguity vs returning all data.
-    # # XXX: - probably merging with the merge destination.
     # i18n: "_rebasedefaultdest" is a keyword
-    revset.getargs(x, 0, 0, _("_rebasedefaultdest takes no arguments"))
-    return subset & revset.baseset([_destrebase(repo)])
+    sourceset = None
+    if x is not None:
+        sourceset = revset.getset(repo, revset.fullreposet(repo), x)
+    return subset & revset.baseset([_destrebase(repo, sourceset)])
 
 @command('rebase',
     [('s', 'source', '',
      _('rebase the specified changeset and descendants'), _('REV')),
     ('b', 'base', '',
      _('rebase everything from branching point of specified changeset'),
      _('REV')),
     ('r', 'rev', [],
      _('rebase these revisions'),
      _('REV')),
     ('d', 'dest', '',
      _('rebase onto the specified changeset'), _('REV')),
     ('', 'collapse', False, _('collapse the rebased changesets')),
     ('m', 'message', '',
      _('use text as collapse commit message'), _('TEXT')),
     ('e', 'edit', False, _('invoke editor on commit messages')),
     ('l', 'logfile', '',
      _('read collapse commit message from file'), _('FILE')),
     ('k', 'keep', False, _('keep original changesets')),
     ('', 'keepbranches', False, _('keep original branch names')),
     ('D', 'detach', False, _('(DEPRECATED)')),
     ('i', 'interactive', False, _('(DEPRECATED)')),
     ('t', 'tool', '', _('specify merge tool')),
     ('c', 'continue', False, _('continue an interrupted rebase')),
     ('a', 'abort', False, _('abort an interrupted rebase'))] +
      templateopts,
     _('[-s REV | -b REV] [-d REV] [OPTION]'))
 def rebase(ui, repo, **opts):
     """move changeset (and descendants) to a different branch
 
     Rebase uses repeated merging to graft changesets from one part of
     history (the source) onto another (the destination). This can be
     useful for linearizing *local* changes relative to a master
     development tree.
 
     Published commits cannot be rebased (see :hg:`help phases`).
     To copy commits, see :hg:`help graft`.
 
-    If you don't specify a destination changeset (``-d/--dest``),
-    rebase uses the current branch tip as the destination. (The
-    destination changeset is not modified by rebasing, but new
-    changesets are added as its descendants.)
+    If you don't specify a destination changeset (``-d/--dest``), rebase
+    will use the same logic as :hg:`merge` to pick a destination.  if
+    the current branch contains exactly one other head, the other head
+    is merged with by default.  Otherwise, an explicit revision with
+    which to merge with must be provided.  (destination changeset is not
+    modified by rebasing, but new changesets are added as its
+    descendants.)
 
     Here are the ways to select changesets:
 
       1. Explicitly select them using ``--rev``.
 
       2. Use ``--source`` to select a root changeset and include all of its
          descendants.
 
       3. Use ``--base`` to select a changeset; rebase will find ancestors
          and their descendants which are not also ancestors of the destination.
 
       4. If you do not specify any of ``--rev``, ``source``, or ``--base``,
          rebase will use ``--base .`` as above.
 
     Rebase will destroy original changesets unless you use ``--keep``.
     It will also move your bookmarks (even if you do).
 
     Some changesets may be dropped if they do not contribute changes
     (e.g. merges from the destination branch).
 
     Unlike ``merge``, rebase will do nothing if you are at the branch tip of
     a named branch with two heads. You will need to explicitly specify source
     and/or destination.
 
     If you need to use a tool to automate merge/conflict decisions, you
     can specify one with ``--tool``, see :hg:`help merge-tools`.
     As a caveat: the tool will not be used to mediate when a file was
     deleted, there is no hook presently available for this.
 
     If a rebase is interrupted to manually resolve a conflict, it can be
     continued with --continue/-c or aborted with --abort/-a.
 
     .. container:: verbose
 
       Examples:
 
       - move "local changes" (current commit back to branching point)
         to the current branch tip after a pull::
 
           hg rebase
 
       - move a single changeset to the stable branch::
 
           hg rebase -r 5f493448 -d stable
 
       - splice a commit and all its descendants onto another part of history::
 
           hg rebase --source c0c3 --dest 4cf9
 
       - rebase everything on a branch marked by a bookmark onto the
         default branch::
 
           hg rebase --base myfeature --dest default
 
       - collapse a sequence of changes into a single commit::
 
           hg rebase --collapse -r 1520:1525 -d .
 
       - move a named branch while preserving its name::
 
           hg rebase -r "branch(featureX)" -d 1.3 --keepbranches
 
     Returns 0 on success, 1 if nothing to rebase or there are
     unresolved conflicts.
 
     """
     originalwd = target = None
     activebookmark = None
     external = nullrev
     # Mapping between the old revision id and either what is the new rebased
     # revision or what needs to be done with the old revision. The state dict
     # will be what contains most of the rebase progress state.
     state = {}
     skipped = set()
     targetancestors = set()
 
 
     lock = wlock = None
     try:
         wlock = repo.wlock()
         lock = repo.lock()
 
         # Validate input and define rebasing points
         destf = opts.get('dest', None)
         srcf = opts.get('source', None)
         basef = opts.get('base', None)
         revf = opts.get('rev', [])
         contf = opts.get('continue')
         abortf = opts.get('abort')
         collapsef = opts.get('collapse', False)
         collapsemsg = cmdutil.logmessage(ui, opts)
         date = opts.get('date', None)
         e = opts.get('extrafn') # internal, used by e.g. hgsubversion
         extrafns = [_savegraft]
         if e:
             extrafns = [e]
         keepf = opts.get('keep', False)
         keepbranchesf = opts.get('keepbranches', False)
         # keepopen is not meant for use on the command line, but by
         # other extensions
         keepopen = opts.get('keepopen', False)
 
         if opts.get('interactive'):
             try:
                 if extensions.find('histedit'):
                     enablehistedit = ''
             except KeyError:
                 enablehistedit = " --config extensions.histedit="
             help = "hg%s help -e histedit" % enablehistedit
             msg = _("interactive history editing is supported by the "
                     "'histedit' extension (see \"%s\")") % help
             raise error.Abort(msg)
 
         if collapsemsg and not collapsef:
             raise error.Abort(
                 _('message can only be specified with collapse'))
 
         if contf or abortf:
             if contf and abortf:
                 raise error.Abort(_('cannot use both abort and continue'))
             if collapsef:
                 raise error.Abort(
                     _('cannot use collapse with continue or abort'))
             if srcf or basef or destf:
                 raise error.Abort(
                     _('abort and continue do not allow specifying revisions'))
             if abortf and opts.get('tool', False):
                 ui.warn(_('tool option will be ignored\n'))
 
             try:
                 (originalwd, target, state, skipped, collapsef, keepf,
                  keepbranchesf, external, activebookmark) = restorestatus(repo)
                 collapsemsg = restorecollapsemsg(repo)
             except error.RepoLookupError:
                 if abortf:
                     clearstatus(repo)
                     clearcollapsemsg(repo)
                     repo.ui.warn(_('rebase aborted (no revision is removed,'
                                    ' only broken state is cleared)\n'))
                     return 0
                 else:
                     msg = _('cannot continue inconsistent rebase')
                     hint = _('use "hg rebase --abort" to clear broken state')
                     raise error.Abort(msg, hint=hint)
             if abortf:
                 return abort(repo, originalwd, target, state,
                              activebookmark=activebookmark)
         else:
             dest, rebaseset = _definesets(ui, repo, destf, srcf, basef, revf)
             if dest is None:
                 return _nothingtorebase()
 
             allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
             if (not (keepf or allowunstable)
                   and repo.revs('first(children(%ld) - %ld)',
                                 rebaseset, rebaseset)):
                 raise error.Abort(
                     _("can't remove original changesets with"
                       " unrebased descendants"),
                     hint=_('use --keep to keep original changesets'))
 
             obsoletenotrebased = {}
             if ui.configbool('experimental', 'rebaseskipobsolete'):
                 rebasesetrevs = set(rebaseset)
                 rebaseobsrevs = _filterobsoleterevs(repo, rebasesetrevs)
                 obsoletenotrebased = _computeobsoletenotrebased(repo,
                                                                 rebaseobsrevs,
                                                                 dest)
                 rebaseobsskipped = set(obsoletenotrebased)
 
                 # Obsolete node with successors not in dest leads to divergence
                 divergenceok = ui.configbool('rebase',
                                              'allowdivergence')
                 divergencebasecandidates = rebaseobsrevs - rebaseobsskipped
 
                 if divergencebasecandidates and not divergenceok:
                     divhashes = (str(repo[r])
                                  for r in divergencebasecandidates)
                     msg = _("this rebase will cause "
                             "divergences from: %s")
                     h = _("to force the rebase please set "
                           "rebase.allowdivergence=True")
                     raise error.Abort(msg % (",".join(divhashes),), hint=h)
 
                 # - plain prune (no successor) changesets are rebased
                 # - split changesets are not rebased if at least one of the
                 # changeset resulting from the split is an ancestor of dest
                 rebaseset = rebasesetrevs - rebaseobsskipped
                 if rebasesetrevs and not rebaseset:
                     msg = _('all requested changesets have equivalents '
                             'or were marked as obsolete')
                     hint = _('to force the rebase, set the config '
                              'experimental.rebaseskipobsolete to False')
                     raise error.Abort(msg, hint=hint)
 
             result = buildstate(repo, dest, rebaseset, collapsef,
                                 obsoletenotrebased)
 
             if not result:
                 # Empty state built, nothing to rebase
                 ui.status(_('nothing to rebase\n'))
                 return _nothingtorebase()
 
             root = min(rebaseset)
             if not keepf and not repo[root].mutable():
                 raise error.Abort(_("can't rebase public changeset %s")
                                  % repo[root],
                                  hint=_('see "hg help phases" for details'))
 
             originalwd, target, state = result
             if collapsef:
                 targetancestors = repo.changelog.ancestors([target],
                                                            inclusive=True)
                 external = externalparent(repo, state, targetancestors)
 
             if dest.closesbranch() and not keepbranchesf:
                 ui.status(_('reopening closed branch head %s\n') % dest)
 
         if keepbranchesf:
             # insert _savebranch at the start of extrafns so if
             # there's a user-provided extrafn it can clobber branch if
             # desired
             extrafns.insert(0, _savebranch)
             if collapsef:
                 branches = set()
                 for rev in state:
                     branches.add(repo[rev].branch())
                     if len(branches) > 1:
                         raise error.Abort(_('cannot collapse multiple named '
                             'branches'))
 
         # Rebase
         if not targetancestors:
             targetancestors = repo.changelog.ancestors([target], inclusive=True)
 
         # Keep track of the current bookmarks in order to reset them later
         currentbookmarks = repo._bookmarks.copy()
         activebookmark = activebookmark or repo._activebookmark
         if activebookmark:
             bookmarks.deactivate(repo)
 
         extrafn = _makeextrafn(extrafns)
 
         sortedstate = sorted(state)
         total = len(sortedstate)
         pos = 0
         for rev in sortedstate:
             ctx = repo[rev]
             desc = '%d:%s "%s"' % (ctx.rev(), ctx,
                                    ctx.description().split('\n', 1)[0])
             names = repo.nodetags(ctx.node()) + repo.nodebookmarks(ctx.node())
             if names:
                 desc += ' (%s)' % ' '.join(names)
             pos += 1
             if state[rev] == revtodo:
                 ui.status(_('rebasing %s\n') % desc)
                 ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, ctx)),
                             _('changesets'), total)
                 p1, p2, base = defineparents(repo, rev, target, state,
                                              targetancestors)
                 storestatus(repo, originalwd, target, state, collapsef, keepf,
                             keepbranchesf, external, activebookmark)
                 storecollapsemsg(repo, collapsemsg)
                 if len(repo[None].parents()) == 2:
                     repo.ui.debug('resuming interrupted rebase\n')
                 else:
                     try:
                         ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
                                      'rebase')
                         stats = rebasenode(repo, rev, p1, base, state,
                                            collapsef, target)
                         if stats and stats[3] > 0:
                             raise error.InterventionRequired(
                                 _('unresolved conflicts (see hg '
                                   'resolve, then hg rebase --continue)'))
                     finally:
                         ui.setconfig('ui', 'forcemerge', '', 'rebase')
                 if not collapsef:
                     merging = p2 != nullrev
                     editform = cmdutil.mergeeditform(merging, 'rebase')
                     editor = cmdutil.getcommiteditor(editform=editform, **opts)
                     newnode = concludenode(repo, rev, p1, p2, extrafn=extrafn,
                                            editor=editor,
                                            keepbranches=keepbranchesf,
                                            date=date)
                 else:
                     # Skip commit if we are collapsing
                     repo.dirstate.beginparentchange()
                     repo.setparents(repo[p1].node())
                     repo.dirstate.endparentchange()
                     newnode = None
                 # Update the state
                 if newnode is not None:
                     state[rev] = repo[newnode].rev()
                     ui.debug('rebased as %s\n' % short(newnode))
                 else:
                     if not collapsef:
                         ui.warn(_('note: rebase of %d:%s created no changes '
                                   'to commit\n') % (rev, ctx))
                         skipped.add(rev)
                     state[rev] = p1
                     ui.debug('next revision set to %s\n' % p1)
             elif state[rev] == nullmerge:
                 ui.debug('ignoring null merge rebase of %s\n' % rev)
             elif state[rev] == revignored:
                 ui.status(_('not rebasing ignored %s\n') % desc)
             elif state[rev] == revprecursor:
                 targetctx = repo[obsoletenotrebased[rev]]
                 desctarget = '%d:%s "%s"' % (targetctx.rev(), targetctx,
                              targetctx.description().split('\n', 1)[0])
                 msg = _('note: not rebasing %s, already in destination as %s\n')
                 ui.status(msg % (desc, desctarget))
             elif state[rev] == revpruned:
                 msg = _('note: not rebasing %s, it has no successor\n')
                 ui.status(msg % desc)
             else:
                 ui.status(_('already rebased %s as %s\n') %
                           (desc, repo[state[rev]]))
 
         ui.progress(_('rebasing'), None)
         ui.note(_('rebase merging completed\n'))
 
         if collapsef and not keepopen:
             p1, p2, _base = defineparents(repo, min(state), target,
                                           state, targetancestors)
             editopt = opts.get('edit')
             editform = 'rebase.collapse'
             if collapsemsg:
                 commitmsg = collapsemsg
             else:
                 commitmsg = 'Collapsed revision'
                 for rebased in state:
                     if rebased not in skipped and state[rebased] > nullmerge:
                         commitmsg += '\n* %s' % repo[rebased].description()
                 editopt = True
             editor = cmdutil.getcommiteditor(edit=editopt, editform=editform)
             newnode = concludenode(repo, rev, p1, external, commitmsg=commitmsg,
                                    extrafn=extrafn, editor=editor,
                                    keepbranches=keepbranchesf,
                                    date=date)
             if newnode is None:
                 newrev = target
             else:
                 newrev = repo[newnode].rev()
             for oldrev in state.iterkeys():
                 if state[oldrev] > nullmerge:
                     state[oldrev] = newrev
 
         if 'qtip' in repo.tags():
             updatemq(repo, state, skipped, **opts)
 
         if currentbookmarks:
             # Nodeids are needed to reset bookmarks
             nstate = {}
             for k, v in state.iteritems():
                 if v > nullmerge:
                     nstate[repo[k].node()] = repo[v].node()
             # XXX this is the same as dest.node() for the non-continue path --
             # this should probably be cleaned up
             targetnode = repo[target].node()
 
         # restore original working directory
         # (we do this before stripping)
         newwd = state.get(originalwd, originalwd)
         if newwd < 0:
             # original directory is a parent of rebase set root or ignored
             newwd = originalwd
         if newwd not in [c.rev() for c in repo[None].parents()]:
             ui.note(_("update back to initial working directory parent\n"))
             hg.updaterepo(repo, newwd, False)
 
         if not keepf:
             collapsedas = None
             if collapsef:
                 collapsedas = newnode
             clearrebased(ui, repo, state, skipped, collapsedas)
 
         with repo.transaction('bookmark') as tr:
             if currentbookmarks:
                 updatebookmarks(repo, targetnode, nstate, currentbookmarks, tr)
                 if activebookmark not in repo._bookmarks:
                     # active bookmark was divergent one and has been deleted
                     activebookmark = None
         clearstatus(repo)
         clearcollapsemsg(repo)
 
         ui.note(_("rebase completed\n"))
         util.unlinkpath(repo.sjoin('undo'), ignoremissing=True)
         if skipped:
             ui.note(_("%d revisions have been skipped\n") % len(skipped))
 
         if (activebookmark and
             repo['.'].node() == repo._bookmarks[activebookmark]):
                 bookmarks.activate(repo, activebookmark)
 
     finally:
         release(lock, wlock)
 
 def _definesets(ui, repo, destf=None, srcf=None, basef=None, revf=[]):
     """use revisions argument to define destination and rebase set
     """
     if srcf and basef:
         raise error.Abort(_('cannot specify both a source and a base'))
     if revf and basef:
         raise error.Abort(_('cannot specify both a revision and a base'))
     if revf and srcf:
         raise error.Abort(_('cannot specify both a revision and a source'))
 
     cmdutil.checkunfinished(repo)
     cmdutil.bailifchanged(repo)
 
     if destf:
         dest = scmutil.revsingle(repo, destf)
-    else:
-        dest = repo[_destrebase(repo)]
-        destf = str(dest)
 
     if revf:
         rebaseset = scmutil.revrange(repo, revf)
         if not rebaseset:
             ui.status(_('empty "rev" revision set - nothing to rebase\n'))
             return None, None
     elif srcf:
         src = scmutil.revrange(repo, [srcf])
         if not src:
             ui.status(_('empty "source" revision set - nothing to rebase\n'))
             return None, None
         rebaseset = repo.revs('(%ld)::', src)
         assert rebaseset
     else:
         base = scmutil.revrange(repo, [basef or '.'])
         if not base:
             ui.status(_('empty "base" revision set - '
                         "can't compute rebase set\n"))
             return None, None
+        if not destf:
+            dest = repo[_destrebase(repo, base)]
+            destf = str(dest)
+
         commonanc = repo.revs('ancestor(%ld, %d)', base, dest).first()
         if commonanc is not None:
             rebaseset = repo.revs('(%d::(%ld) - %d)::',
                                   commonanc, base, commonanc)
         else:
             rebaseset = []
 
         if not rebaseset:
             # transform to list because smartsets are not comparable to
             # lists. This should be improved to honor laziness of
             # smartset.
             if list(base) == [dest.rev()]:
                 if basef:
                     ui.status(_('nothing to rebase - %s is both "base"'
                                 ' and destination\n') % dest)
                 else:
                     ui.status(_('nothing to rebase - working directory '
                                 'parent is also destination\n'))
             elif not repo.revs('%ld - ::%d', base, dest):
                 if basef:
                     ui.status(_('nothing to rebase - "base" %s is '
                                 'already an ancestor of destination '
                                 '%s\n') %
                               ('+'.join(str(repo[r]) for r in base),
                                dest))
                 else:
                     ui.status(_('nothing to rebase - working '
                                 'directory parent is already an '
                                 'ancestor of destination %s\n') % dest)
             else: # can it happen?
                 ui.status(_('nothing to rebase from %s to %s\n') %
                           ('+'.join(str(repo[r]) for r in base), dest))
             return None, None
+
+    if not destf:
+        dest = repo[_destrebase(repo, rebaseset)]
+        destf = str(dest)
+
     return dest, rebaseset
 
 def externalparent(repo, state, targetancestors):
     """Return the revision that should be used as the second parent
     when the revisions in state is collapsed on top of targetancestors.
     Abort if there is more than one parent.
     """
     parents = set()
     source = min(state)
     for rev in state:
         if rev == source:
             continue
         for p in repo[rev].parents():
             if (p.rev() not in state
                         and p.rev() not in targetancestors):
                 parents.add(p.rev())
     if not parents:
         return nullrev
     if len(parents) == 1:
         return parents.pop()
     raise error.Abort(_('unable to collapse on top of %s, there is more '
                        'than one external parent: %s') %
                      (max(targetancestors),
                       ', '.join(str(p) for p in sorted(parents))))
 
 def concludenode(repo, rev, p1, p2, commitmsg=None, editor=None, extrafn=None,
                  keepbranches=False, date=None):
     '''Commit the wd changes with parents p1 and p2. Reuse commit info from rev
     but also store useful information in extra.
     Return node of committed revision.'''
     dsguard = cmdutil.dirstateguard(repo, 'rebase')
     try:
         repo.setparents(repo[p1].node(), repo[p2].node())
         ctx = repo[rev]
         if commitmsg is None:
             commitmsg = ctx.description()
         keepbranch = keepbranches and repo[p1].branch() != ctx.branch()
         extra = {'rebase_source': ctx.hex()}
         if extrafn:
             extrafn(ctx, extra)
 
         backup = repo.ui.backupconfig('phases', 'new-commit')
         try:
             targetphase = max(ctx.phase(), phases.draft)
             repo.ui.setconfig('phases', 'new-commit', targetphase, 'rebase')
             if keepbranch:
                 repo.ui.setconfig('ui', 'allowemptycommit', True)
             # Commit might fail if unresolved files exist
             if date is None:
                 date = ctx.date()
             newnode = repo.commit(text=commitmsg, user=ctx.user(),
                                   date=date, extra=extra, editor=editor)
         finally:
             repo.ui.restoreconfig(backup)
 
         repo.dirstate.setbranch(repo[newnode].branch())
         dsguard.close()
         return newnode
     finally:
         release(dsguard)
 
 def rebasenode(repo, rev, p1, base, state, collapse, target):
     'Rebase a single revision rev on top of p1 using base as merge ancestor'
     # Merge phase
     # Update to target and merge it with local
     if repo['.'].rev() != p1:
         repo.ui.debug(" update to %d:%s\n" % (p1, repo[p1]))
         merge.update(repo, p1, False, True)
     else:
         repo.ui.debug(" already in target\n")
     repo.dirstate.write(repo.currenttransaction())
     repo.ui.debug(" merge against %d:%s\n" % (rev, repo[rev]))
     if base is not None:
         repo.ui.debug("   detach base %d:%s\n" % (base, repo[base]))
     # When collapsing in-place, the parent is the common ancestor, we
     # have to allow merging with it.
     stats = merge.update(repo, rev, True, True, base, collapse,
                         labels=['dest', 'source'])
     if collapse:
         copies.duplicatecopies(repo, rev, target)
     else:
         # If we're not using --collapse, we need to
         # duplicate copies between the revision we're
         # rebasing and its first parent, but *not*
         # duplicate any copies that have already been
         # performed in the destination.
         p1rev = repo[rev].p1().rev()
         copies.duplicatecopies(repo, rev, p1rev, skiprev=target)
     return stats
 
 def nearestrebased(repo, rev, state):
     """return the nearest ancestors of rev in the rebase result"""
     rebased = [r for r in state if state[r] > nullmerge]
     candidates = repo.revs('max(%ld  and (::%d))', rebased, rev)
     if candidates:
         return state[candidates.first()]
     else:
         return None
 
 def defineparents(repo, rev, target, state, targetancestors):
     'Return the new parent relationship of the revision that will be rebased'
     parents = repo[rev].parents()
     p1 = p2 = nullrev
 
     p1n = parents[0].rev()
     if p1n in targetancestors:
         p1 = target
     elif p1n in state:
         if state[p1n] == nullmerge:
             p1 = target
         elif state[p1n] in revskipped:
             p1 = nearestrebased(repo, p1n, state)
             if p1 is None:
                 p1 = target
         else:
             p1 = state[p1n]
     else: # p1n external
         p1 = target
         p2 = p1n
 
     if len(parents) == 2 and parents[1].rev() not in targetancestors:
         p2n = parents[1].rev()
         # interesting second parent
         if p2n in state:
             if p1 == target: # p1n in targetancestors or external
                 p1 = state[p2n]
             elif state[p2n] in revskipped:
                 p2 = nearestrebased(repo, p2n, state)
                 if p2 is None:
                     # no ancestors rebased yet, detach
                     p2 = target
             else:
                 p2 = state[p2n]
         else: # p2n external
             if p2 != nullrev: # p1n external too => rev is a merged revision
                 raise error.Abort(_('cannot use revision %d as base, result '
                         'would have 3 parents') % rev)
             p2 = p2n
     repo.ui.debug(" future parents are %d and %d\n" %
                             (repo[p1].rev(), repo[p2].rev()))
 
     if not any(p.rev() in state for p in parents):
         # Case (1) root changeset of a non-detaching rebase set.
         # Let the merge mechanism find the base itself.
         base = None
     elif not repo[rev].p2():
         # Case (2) detaching the node with a single parent, use this parent
         base = repo[rev].p1().rev()
     else:
         # Assuming there is a p1, this is the case where there also is a p2.
         # We are thus rebasing a merge and need to pick the right merge base.
         #
         # Imagine we have:
         # - M: current rebase revision in this step
         # - A: one parent of M
         # - B: other parent of M
         # - D: destination of this merge step (p1 var)
         #
         # Consider the case where D is a descendant of A or B and the other is
         # 'outside'. In this case, the right merge base is the D ancestor.
         #
         # An informal proof, assuming A is 'outside' and B is the D ancestor:
         #
         # If we pick B as the base, the merge involves:
         # - changes from B to M (actual changeset payload)
         # - changes from B to D (induced by rebase) as D is a rebased
         #   version of B)
         # Which exactly represent the rebase operation.
         #
         # If we pick A as the base, the merge involves:
         # - changes from A to M (actual changeset payload)
         # - changes from A to D (with include changes between unrelated A and B
         #   plus changes induced by rebase)
         # Which does not represent anything sensible and creates a lot of
         # conflicts. A is thus not the right choice - B is.
         #
         # Note: The base found in this 'proof' is only correct in the specified
         # case. This base does not make sense if is not D a descendant of A or B
         # or if the other is not parent 'outside' (especially not if the other
         # parent has been rebased). The current implementation does not
         # make it feasible to consider different cases separately. In these
         # other cases we currently just leave it to the user to correctly
         # resolve an impossible merge using a wrong ancestor.
         for p in repo[rev].parents():
             if state.get(p.rev()) == p1:
                 base = p.rev()
                 break
         else: # fallback when base not found
             base = None
 
             # Raise because this function is called wrong (see issue 4106)
             raise AssertionError('no base found to rebase on '
                                  '(defineparents called wrong)')
     return p1, p2, base
 
 def isagitpatch(repo, patchname):
     'Return true if the given patch is in git format'
     mqpatch = os.path.join(repo.mq.path, patchname)
     for line in patch.linereader(file(mqpatch, 'rb')):
         if line.startswith('diff --git'):
             return True
     return False
 
 def updatemq(repo, state, skipped, **opts):
     'Update rebased mq patches - finalize and then import them'
     mqrebase = {}
     mq = repo.mq
     original_series = mq.fullseries[:]
     skippedpatches = set()
 
     for p in mq.applied:
         rev = repo[p.node].rev()
         if rev in state:
             repo.ui.debug('revision %d is an mq patch (%s), finalize it.\n' %
                                         (rev, p.name))
             mqrebase[rev] = (p.name, isagitpatch(repo, p.name))
         else:
             # Applied but not rebased, not sure this should happen
             skippedpatches.add(p.name)
 
     if mqrebase:
         mq.finish(repo, mqrebase.keys())
 
         # We must start import from the newest revision
         for rev in sorted(mqrebase, reverse=True):
             if rev not in skipped:
                 name, isgit = mqrebase[rev]
                 repo.ui.note(_('updating mq patch %s to %s:%s\n') %
                              (name, state[rev], repo[state[rev]]))
                 mq.qimport(repo, (), patchname=name, git=isgit,
                                 rev=[str(state[rev])])
             else:
                 # Rebased and skipped
                 skippedpatches.add(mqrebase[rev][0])
 
         # Patches were either applied and rebased and imported in
         # order, applied and removed or unapplied. Discard the removed
         # ones while preserving the original series order and guards.
         newseries = [s for s in original_series
                      if mq.guard_re.split(s, 1)[0] not in skippedpatches]
         mq.fullseries[:] = newseries
         mq.seriesdirty = True
         mq.savedirty()
 
 def updatebookmarks(repo, targetnode, nstate, originalbookmarks, tr):
     'Move bookmarks to their correct changesets, and delete divergent ones'
     marks = repo._bookmarks
     for k, v in originalbookmarks.iteritems():
         if v in nstate:
             # update the bookmarks for revs that have moved
             marks[k] = nstate[v]
             bookmarks.deletedivergent(repo, [targetnode], k)
     marks.recordchange(tr)
 
 def storecollapsemsg(repo, collapsemsg):
     'Store the collapse message to allow recovery'
     collapsemsg = collapsemsg or ''
     f = repo.vfs("last-message.txt", "w")
     f.write("%s\n" % collapsemsg)
     f.close()
 
 def clearcollapsemsg(repo):
     'Remove collapse message file'
     util.unlinkpath(repo.join("last-message.txt"), ignoremissing=True)
 
 def restorecollapsemsg(repo):
     'Restore previously stored collapse message'
     try:
         f = repo.vfs("last-message.txt")
         collapsemsg = f.readline().strip()
         f.close()
     except IOError as err:
         if err.errno != errno.ENOENT:
             raise
         raise error.Abort(_('no rebase in progress'))
     return collapsemsg
 
 def storestatus(repo, originalwd, target, state, collapse, keep, keepbranches,
                 external, activebookmark):
     'Store the current status to allow recovery'
     f = repo.vfs("rebasestate", "w")
     f.write(repo[originalwd].hex() + '\n')
     f.write(repo[target].hex() + '\n')
     f.write(repo[external].hex() + '\n')
     f.write('%d\n' % int(collapse))
     f.write('%d\n' % int(keep))
     f.write('%d\n' % int(keepbranches))
     f.write('%s\n' % (activebookmark or ''))
     for d, v in state.iteritems():
         oldrev = repo[d].hex()
         if v >= 0:
             newrev = repo[v].hex()
         elif v == revtodo:
             # To maintain format compatibility, we have to use nullid.
             # Please do remove this special case when upgrading the format.
             newrev = hex(nullid)
         else:
             newrev = v
         f.write("%s:%s\n" % (oldrev, newrev))
     f.close()
     repo.ui.debug('rebase status stored\n')
 
 def clearstatus(repo):
     'Remove the status files'
     _clearrebasesetvisibiliy(repo)
     util.unlinkpath(repo.join("rebasestate"), ignoremissing=True)
 
 def restorestatus(repo):
     'Restore a previously stored status'
     keepbranches = None
     target = None
     collapse = False
     external = nullrev
     activebookmark = None
     state = {}
 
     try:
         f = repo.vfs("rebasestate")
         for i, l in enumerate(f.read().splitlines()):
             if i == 0:
                 originalwd = repo[l].rev()
             elif i == 1:
                 target = repo[l].rev()
             elif i == 2:
                 external = repo[l].rev()
             elif i == 3:
                 collapse = bool(int(l))
             elif i == 4:
                 keep = bool(int(l))
             elif i == 5:
                 keepbranches = bool(int(l))
             elif i == 6 and not (len(l) == 81 and ':' in l):
                 # line 6 is a recent addition, so for backwards compatibility
                 # check that the line doesn't look like the oldrev:newrev lines
                 activebookmark = l
             else:
                 oldrev, newrev = l.split(':')
                 if newrev in (str(nullmerge), str(revignored),
                               str(revprecursor), str(revpruned)):
                     state[repo[oldrev].rev()] = int(newrev)
                 elif newrev == nullid:
                     state[repo[oldrev].rev()] = revtodo
                     # Legacy compat special case
                 else:
                     state[repo[oldrev].rev()] = repo[newrev].rev()
 
     except IOError as err:
         if err.errno != errno.ENOENT:
             raise
         cmdutil.wrongtooltocontinue(repo, _('rebase'))
 
     if keepbranches is None:
         raise error.Abort(_('.hg/rebasestate is incomplete'))
 
     skipped = set()
     # recompute the set of skipped revs
     if not collapse:
         seen = set([target])
         for old, new in sorted(state.items()):
             if new != revtodo and new in seen:
                 skipped.add(old)
             seen.add(new)
     repo.ui.debug('computed skipped revs: %s\n' %
                     (' '.join(str(r) for r in sorted(skipped)) or None))
     repo.ui.debug('rebase status resumed\n')
     _setrebasesetvisibility(repo, state.keys())
     return (originalwd, target, state, skipped,
             collapse, keep, keepbranches, external, activebookmark)
 
 def needupdate(repo, state):
     '''check whether we should `update --clean` away from a merge, or if
     somehow the working dir got forcibly updated, e.g. by older hg'''
     parents = [p.rev() for p in repo[None].parents()]
 
     # Are we in a merge state at all?
     if len(parents) < 2:
         return False
 
     # We should be standing on the first as-of-yet unrebased commit.
     firstunrebased = min([old for old, new in state.iteritems()
                           if new == nullrev])
     if firstunrebased in parents:
         return True
 
     return False
 
 def abort(repo, originalwd, target, state, activebookmark=None):
     '''Restore the repository to its original state.  Additional args:
 
     activebookmark: the name of the bookmark that should be active after the
         restore'''
 
     try:
         # If the first commits in the rebased set get skipped during the rebase,
         # their values within the state mapping will be the target rev id. The
         # dstates list must must not contain the target rev (issue4896)
         dstates = [s for s in state.values() if s >= 0 and s != target]
         immutable = [d for d in dstates if not repo[d].mutable()]
         cleanup = True
         if immutable:
             repo.ui.warn(_("warning: can't clean up public changesets %s\n")
                         % ', '.join(str(repo[r]) for r in immutable),
                         hint=_('see "hg help phases" for details'))
             cleanup = False
 
         descendants = set()
         if dstates:
             descendants = set(repo.changelog.descendants(dstates))
         if descendants - set(dstates):
             repo.ui.warn(_("warning: new changesets detected on target branch, "
                         "can't strip\n"))
             cleanup = False
 
         if cleanup:
             shouldupdate = False
             rebased = filter(lambda x: x >= 0 and x != target, state.values())
             if rebased:
                 strippoints = [
                         c.node() for c in repo.set('roots(%ld)', rebased)]
                 shouldupdate = len([
                         c.node() for c in repo.set('. & (%ld)', rebased)]) > 0
 
             # Update away from the rebase if necessary
             if shouldupdate or needupdate(repo, state):
                 merge.update(repo, originalwd, False, True)
 
             # Strip from the first rebased revision
             if rebased:
                 # no backup of rebased cset versions needed
                 repair.strip(repo.ui, repo, strippoints)
 
         if activebookmark and activebookmark in repo._bookmarks:
             bookmarks.activate(repo, activebookmark)
 
     finally:
         clearstatus(repo)
         clearcollapsemsg(repo)
         repo.ui.warn(_('rebase aborted\n'))
     return 0
 
 def buildstate(repo, dest, rebaseset, collapse, obsoletenotrebased):
     '''Define which revisions are going to be rebased and where
 
     repo: repo
     dest: context
     rebaseset: set of rev
     '''
     _setrebasesetvisibility(repo, rebaseset)
 
     # This check isn't strictly necessary, since mq detects commits over an
     # applied patch. But it prevents messing up the working directory when
     # a partially completed rebase is blocked by mq.
     if 'qtip' in repo.tags() and (dest.node() in
                             [s.node for s in repo.mq.applied]):
         raise error.Abort(_('cannot rebase onto an applied mq patch'))
 
     roots = list(repo.set('roots(%ld)', rebaseset))
     if not roots:
         raise error.Abort(_('no matching revisions'))
     roots.sort()
     state = {}
     detachset = set()
     for root in roots:
         commonbase = root.ancestor(dest)
         if commonbase == root:
             raise error.Abort(_('source is ancestor of destination'))
         if commonbase == dest:
             samebranch = root.branch() == dest.branch()
             if not collapse and samebranch and root in dest.children():
                 repo.ui.debug('source is a child of destination\n')
                 return None
 
         repo.ui.debug('rebase onto %d starting from %s\n' % (dest, root))
         state.update(dict.fromkeys(rebaseset, revtodo))
         # Rebase tries to turn <dest> into a parent of <root> while
         # preserving the number of parents of rebased changesets:
         #
         # - A changeset with a single parent will always be rebased as a
         #   changeset with a single parent.
         #
         # - A merge will be rebased as merge unless its parents are both
         #   ancestors of <dest> or are themselves in the rebased set and
         #   pruned while rebased.
         #
         # If one parent of <root> is an ancestor of <dest>, the rebased
         # version of this parent will be <dest>. This is always true with
         # --base option.
         #
         # Otherwise, we need to *replace* the original parents with
         # <dest>. This "detaches" the rebased set from its former location
         # and rebases it onto <dest>. Changes introduced by ancestors of
         # <root> not common with <dest> (the detachset, marked as
         # nullmerge) are "removed" from the rebased changesets.
         #
         # - If <root> has a single parent, set it to <dest>.
         #
         # - If <root> is a merge, we cannot decide which parent to
         #   replace, the rebase operation is not clearly defined.
         #
         # The table below sums up this behavior:
         #
         # +------------------+----------------------+-------------------------+
         # |                  |     one parent       |  merge                  |
         # +------------------+----------------------+-------------------------+
         # | parent in        | new parent is <dest> | parents in ::<dest> are |
         # | ::<dest>         |                      | remapped to <dest>      |
         # +------------------+----------------------+-------------------------+
         # | unrelated source | new parent is <dest> | ambiguous, abort        |
         # +------------------+----------------------+-------------------------+
         #
         # The actual abort is handled by `defineparents`
         if len(root.parents()) <= 1:
             # ancestors of <root> not ancestors of <dest>
             detachset.update(repo.changelog.findmissingrevs([commonbase.rev()],
                                                             [root.rev()]))
     for r in detachset:
         if r not in state:
             state[r] = nullmerge
     if len(roots) > 1:
         # If we have multiple roots, we may have "hole" in the rebase set.
         # Rebase roots that descend from those "hole" should not be detached as
         # other root are. We use the special `revignored` to inform rebase that
         # the revision should be ignored but that `defineparents` should search
         # a rebase destination that make sense regarding rebased topology.
         rebasedomain = set(repo.revs('%ld::%ld', rebaseset, rebaseset))
         for ignored in set(rebasedomain) - set(rebaseset):
             state[ignored] = revignored
     for r in obsoletenotrebased:
         if obsoletenotrebased[r] is None:
             state[r] = revpruned
         else:
             state[r] = revprecursor
     return repo['.'].rev(), dest.rev(), state
 
 def clearrebased(ui, repo, state, skipped, collapsedas=None):
     """dispose of rebased revision at the end of the rebase
 
     If `collapsedas` is not None, the rebase was a collapse whose result if the
     `collapsedas` node."""
     if obsolete.isenabled(repo, obsolete.createmarkersopt):
         markers = []
         for rev, newrev in sorted(state.items()):
             if newrev >= 0:
                 if rev in skipped:
                     succs = ()
                 elif collapsedas is not None:
                     succs = (repo[collapsedas],)
                 else:
                     succs = (repo[newrev],)
                 markers.append((repo[rev], succs))
         if markers:
             obsolete.createmarkers(repo, markers)
     else:
         rebased = [rev for rev in state if state[rev] > nullmerge]
         if rebased:
             stripped = []
             for root in repo.set('roots(%ld)', rebased):
                 if set(repo.changelog.descendants([root.rev()])) - set(state):
                     ui.warn(_("warning: new changesets detected "
                               "on source branch, not stripping\n"))
                 else:
                     stripped.append(root.node())
             if stripped:
                 # backup the old csets by default
                 repair.strip(ui, repo, stripped, "all")
 
 
 def pullrebase(orig, ui, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'
     ret = None
     if opts.get('rebase'):
         wlock = lock = None
         try:
             wlock = repo.wlock()
             lock = repo.lock()
             if opts.get('update'):
                 del opts['update']
                 ui.debug('--update and --rebase are not compatible, ignoring '
                          'the update flag\n')
 
             revsprepull = len(repo)
             origpostincoming = commands.postincoming
             def _dummy(*args, **kwargs):
                 pass
             commands.postincoming = _dummy
             try:
                 ret = orig(ui, repo, *args, **opts)
             finally:
                 commands.postincoming = origpostincoming
             revspostpull = len(repo)
             if revspostpull > revsprepull:
                 # --rev option from pull conflict with rebase own --rev
                 # dropping it
                 if 'rev' in opts:
                     del opts['rev']
                 # positional argument from pull conflicts with rebase's own
                 # --source.
                 if 'source' in opts:
                     del opts['source']
-                if rebase(ui, repo, **opts) == _nothingtorebase():
+                try:
+                    rebase(ui, repo, **opts)
+                except error.NoMergeDestAbort:
+                    # we can maybe update instead
                     rev, _a, _b = destutil.destupdate(repo)
-                    if rev != repo['.'].rev(): # we could update
+                    if rev == repo['.'].rev():
+                        ui.status(_('nothing to rebase\n'))
+                    else:
+                        ui.status(_('nothing to rebase - updating instead\n'))
                         # not passing argument to get the bare update behavior
                         # with warning and trumpets
                         commands.update(ui, repo)
         finally:
             release(lock, wlock)
     else:
         if opts.get('tool'):
             raise error.Abort(_('--tool can only be used with --rebase'))
         ret = orig(ui, repo, *args, **opts)
 
     return ret
 
 def _setrebasesetvisibility(repo, revs):
     """store the currently rebased set on the repo object
 
     This is used by another function to prevent rebased revision to because
     hidden (see issue4505)"""
     repo = repo.unfiltered()
     revs = set(revs)
     repo._rebaseset = revs
     # invalidate cache if visibility changes
     hiddens = repo.filteredrevcache.get('visible', set())
     if revs & hiddens:
         repo.invalidatevolatilesets()
 
 def _clearrebasesetvisibiliy(repo):
     """remove rebaseset data from the repo"""
     repo = repo.unfiltered()
     if '_rebaseset' in vars(repo):
         del repo._rebaseset
 
 def _rebasedvisible(orig, repo):
     """ensure rebased revs stay visible (see issue4505)"""
     blockers = orig(repo)
     blockers.update(getattr(repo, '_rebaseset', ()))
     return blockers
 
 def _filterobsoleterevs(repo, revs):
     """returns a set of the obsolete revisions in revs"""
     return set(r for r in revs if repo[r].obsolete())
 
 def _computeobsoletenotrebased(repo, rebaseobsrevs, dest):
     """return a mapping obsolete => successor for all obsolete nodes to be
     rebased that have a successors in the destination
 
     obsolete => None entries in the mapping indicate nodes with no succesor"""
     obsoletenotrebased = {}
 
     # Build a mapping successor => obsolete nodes for the obsolete
     # nodes to be rebased
     allsuccessors = {}
     cl = repo.changelog
     for r in rebaseobsrevs:
         node = cl.node(r)
         for s in obsolete.allsuccessors(repo.obsstore, [node]):
             try:
                 allsuccessors[cl.rev(s)] = cl.rev(node)
             except LookupError:
                 pass
 
     if allsuccessors:
         # Look for successors of obsolete nodes to be rebased among
         # the ancestors of dest
         ancs = cl.ancestors([repo[dest].rev()],
                             stoprev=min(allsuccessors),
                             inclusive=True)
         for s in allsuccessors:
             if s in ancs:
                 obsoletenotrebased[allsuccessors[s]] = s
             elif (s == allsuccessors[s] and
                   allsuccessors.values().count(s) == 1):
                 # plain prune
                 obsoletenotrebased[s] = None
 
     return obsoletenotrebased
 
 def summaryhook(ui, repo):
     if not os.path.exists(repo.join('rebasestate')):
         return
     try:
         state = restorestatus(repo)[2]
     except error.RepoLookupError:
         # i18n: column positioning for "hg summary"
         msg = _('rebase: (use "hg rebase --abort" to clear broken state)\n')
         ui.write(msg)
         return
     numrebased = len([i for i in state.itervalues() if i >= 0])
     # i18n: column positioning for "hg summary"
     ui.write(_('rebase: %s, %s (rebase --continue)\n') %
              (ui.label(_('%d rebased'), 'rebase.rebased') % numrebased,
               ui.label(_('%d remaining'), 'rebase.remaining') %
               (len(state) - numrebased)))
 
 def uisetup(ui):
     #Replace pull with a decorator to provide --rebase option
     entry = extensions.wrapcommand(commands.table, 'pull', pullrebase)
     entry[1].append(('', 'rebase', None,
                      _("rebase working directory to branch head")))
     entry[1].append(('t', 'tool', '',
                      _("specify merge tool for rebase")))
     cmdutil.summaryhooks.add('rebase', summaryhook)
     cmdutil.unfinishedstates.append(
         ['rebasestate', False, False, _('rebase in progress'),
          _("use 'hg rebase --continue' or 'hg rebase --abort'")])
     cmdutil.afterresolvedstates.append(
         ['rebasestate', _('hg rebase --continue')])
     # ensure rebased rev are not hidden
     extensions.wrapfunction(repoview, '_getdynamicblockers', _rebasedvisible)
     revsetpredicate.setup()

mercurial/destutil.py

@@ -1,344 +1,376
 # destutil.py - Mercurial utility function for command destination
 #
 #  Copyright Matt Mackall <[e-mail]> and other
 #
 # 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 . import (
     bookmarks,
     error,
     obsolete,
 )
 
 def _destupdatevalidate(repo, rev, clean, check):
     """validate that the destination comply to various rules
 
     This exists as its own function to help wrapping from extensions."""
     wc = repo[None]
     p1 = wc.p1()
     if not clean:
         # Check that the update is linear.
         #
         # Mercurial do not allow update-merge for non linear pattern
         # (that would be technically possible but was considered too confusing
         # for user a long time ago)
         #
         # See mercurial.merge.update for details
         if p1.rev() not in repo.changelog.ancestors([rev], inclusive=True):
             dirty = wc.dirty(missing=True)
             foreground = obsolete.foreground(repo, [p1.node()])
             if not repo[rev].node() in foreground:
                 if dirty:
                     msg = _("uncommitted changes")
                     hint = _("commit and merge, or update --clean to"
                              " discard changes")
                     raise error.UpdateAbort(msg, hint=hint)
                 elif not check:  # destination is not a descendant.
                     msg = _("not a linear update")
                     hint = _("merge or update --check to force update")
                     raise error.UpdateAbort(msg, hint=hint)
 
 def _destupdateobs(repo, clean, check):
     """decide of an update destination from obsolescence markers"""
     node = None
     wc = repo[None]
     p1 = wc.p1()
     movemark = None
 
     if p1.obsolete() and not p1.children():
         # allow updating to successors
         successors = obsolete.successorssets(repo, p1.node())
 
         # behavior of certain cases is as follows,
         #
         # divergent changesets: update to highest rev, similar to what
         #     is currently done when there are more than one head
         #     (i.e. 'tip')
         #
         # replaced changesets: same as divergent except we know there
         # is no conflict
         #
         # pruned changeset: no update is done; though, we could
         #     consider updating to the first non-obsolete parent,
         #     similar to what is current done for 'hg prune'
 
         if successors:
             # flatten the list here handles both divergent (len > 1)
             # and the usual case (len = 1)
             successors = [n for sub in successors for n in sub]
 
             # get the max revision for the given successors set,
             # i.e. the 'tip' of a set
             node = repo.revs('max(%ln)', successors).first()
             if bookmarks.isactivewdirparent(repo):
                 movemark = repo['.'].node()
     return node, movemark, None
 
 def _destupdatebook(repo, clean, check):
     """decide on an update destination from active bookmark"""
     # we also move the active bookmark, if any
     activemark = None
     node, movemark = bookmarks.calculateupdate(repo.ui, repo, None)
     if node is not None:
         activemark = node
     return node, movemark, activemark
 
 def _destupdatebranch(repo, clean, check):
     """decide on an update destination from current branch"""
     wc = repo[None]
     movemark = node = None
     try:
         node = repo.revs('max(.::(head() and branch(%s)))'
                          , wc.branch()).first()
         if bookmarks.isactivewdirparent(repo):
             movemark = repo['.'].node()
     except error.RepoLookupError:
         if wc.branch() == 'default': # no default branch!
             node = repo.lookup('tip') # update to tip
         else:
             raise error.Abort(_("branch %s not found") % wc.branch())
     return node, movemark, None
 
 # order in which each step should be evalutated
 # steps are run until one finds a destination
 destupdatesteps = ['evolution', 'bookmark', 'branch']
 # mapping to ease extension overriding steps.
 destupdatestepmap = {'evolution': _destupdateobs,
                      'bookmark': _destupdatebook,
                      'branch': _destupdatebranch,
                      }
 
 def destupdate(repo, clean=False, check=False):
     """destination for bare update operation
 
     return (rev, movemark, activemark)
 
     - rev: the revision to update to,
     - movemark: node to move the active bookmark from
                 (cf bookmark.calculate update),
     - activemark: a bookmark to activate at the end of the update.
     """
     node = movemark = activemark = None
 
     for step in destupdatesteps:
         node, movemark, activemark = destupdatestepmap[step](repo, clean, check)
         if node is not None:
             break
     rev = repo[node].rev()
 
     _destupdatevalidate(repo, rev, clean, check)
 
     return rev, movemark, activemark
 
 msgdestmerge = {
     # too many matching divergent bookmark
     'toomanybookmarks':
         {'merge':
             (_("multiple matching bookmarks to merge -"
                " please merge with an explicit rev or bookmark"),
              _("run 'hg heads' to see all heads")),
+         'rebase':
+            (_("multiple matching bookmarks to rebase -"
+               " please rebase to an explicit rev or bookmark"),
+             _("run 'hg heads' to see all heads")),
         },
     # no other matching divergent bookmark
     'nootherbookmarks':
         {'merge':
             (_("no matching bookmark to merge - "
                "please merge with an explicit rev or bookmark"),
              _("run 'hg heads' to see all heads")),
+         'rebase':
+            (_("no matching bookmark to rebase - "
+               "please rebase to an explicit rev or bookmark"),
+             _("run 'hg heads' to see all heads")),
         },
     # branch have too many unbookmarked heads, no obvious destination
     'toomanyheads':
         {'merge':
             (_("branch '%s' has %d heads - please merge with an explicit rev"),
              _("run 'hg heads .' to see heads")),
+         'rebase':
+            (_("branch '%s' has %d heads - please rebase to an explicit rev"),
+             _("run 'hg heads .' to see heads")),
         },
     # branch have no other unbookmarked heads
     'bookmarkedheads':
         {'merge':
             (_("heads are bookmarked - please merge with an explicit rev"),
              _("run 'hg heads' to see all heads")),
+         'rebase':
+            (_("heads are bookmarked - please rebase to an explicit rev"),
+             _("run 'hg heads' to see all heads")),
         },
     # branch have just a single heads, but there is other branches
     'nootherbranchheads':
         {'merge':
             (_("branch '%s' has one head - please merge with an explicit rev"),
              _("run 'hg heads' to see all heads")),
+         'rebase':
+            (_("branch '%s' has one head - please rebase to an explicit rev"),
+             _("run 'hg heads' to see all heads")),
         },
     # repository have a single head
     'nootherheads':
-            {'merge':
-                (_('nothing to merge'),
-         None),
+        {'merge':
+            (_('nothing to merge'),
+            None),
+         'rebase':
+            (_('nothing to rebase'),
+            None),
         },
     # repository have a single head and we are not on it
     'nootherheadsbehind':
         {'merge':
             (_('nothing to merge'),
              _("use 'hg update' instead")),
+         'rebase':
+            (_('nothing to rebase'),
+             _("use 'hg update' instead")),
         },
     # We are not on a head
     'notatheads':
         {'merge':
             (_('working directory not at a head revision'),
-             _("use 'hg update' or merge with an explicit revision"))
+             _("use 'hg update' or merge with an explicit revision")),
+         'rebase':
+            (_('working directory not at a head revision'),
+             _("use 'hg update' or rebase to an explicit revision"))
         },
     'emptysourceset':
         {'merge':
             (_('source set is empty'),
-             None)
+             None),
+         'rebase':
+            (_('source set is empty'),
+             None),
         },
     'multiplebranchessourceset':
         {'merge':
             (_('source set is rooted in multiple branches'),
-             None)
+             None),
+         'rebase':
+            (_('rebaseset is rooted in multiple named branches'),
+             _('specify an explicit destination with --dest')),
         },
     }
 
 def _destmergebook(repo, action='merge', sourceset=None):
     """find merge destination in the active bookmark case"""
     node = None
     bmheads = repo.bookmarkheads(repo._activebookmark)
     curhead = repo[repo._activebookmark].node()
     if len(bmheads) == 2:
         if curhead == bmheads[0]:
             node = bmheads[1]
         else:
             node = bmheads[0]
     elif len(bmheads) > 2:
         msg, hint = msgdestmerge['toomanybookmarks'][action]
         raise error.ManyMergeDestAbort(msg, hint=hint)
     elif len(bmheads) <= 1:
         msg, hint = msgdestmerge['nootherbookmarks'][action]
         raise error.NoMergeDestAbort(msg, hint=hint)
     assert node is not None
     return node
 
 def _destmergebranch(repo, action='merge', sourceset=None, onheadcheck=True):
     """find merge destination based on branch heads"""
     node = None
 
     if sourceset is None:
         sourceset = [repo[repo.dirstate.p1()].rev()]
         branch = repo.dirstate.branch()
     elif not sourceset:
         msg, hint = msgdestmerge['emptysourceset'][action]
         raise error.NoMergeDestAbort(msg, hint=hint)
     else:
         branch = None
         for ctx in repo.set('roots(%ld::%ld)', sourceset, sourceset):
             if branch is not None and ctx.branch() != branch:
                 msg, hint = msgdestmerge['multiplebranchessourceset'][action]
                 raise error.ManyMergeDestAbort(msg, hint=hint)
             branch = ctx.branch()
 
     bheads = repo.branchheads(branch)
     onhead = repo.revs('%ld and %ln', sourceset, bheads)
     if onheadcheck and not onhead:
         # Case A: working copy if not on a head. (merge only)
         #
         # This is probably a user mistake We bailout pointing at 'hg update'
         if len(repo.heads()) <= 1:
             msg, hint = msgdestmerge['nootherheadsbehind'][action]
         else:
             msg, hint = msgdestmerge['notatheads'][action]
         raise error.Abort(msg, hint=hint)
     # remove heads descendants of source from the set
     bheads = list(repo.revs('%ln - (%ld::)', bheads, sourceset))
     # filters out bookmarked heads
     nbhs = list(repo.revs('%ld - bookmark()', bheads))
     if len(nbhs) > 1:
         # Case B: There is more than 1 other anonymous heads
         #
         # This means that there will be more than 1 candidate. This is
         # ambiguous. We abort asking the user to pick as explicit destination
         # instead.
         msg, hint = msgdestmerge['toomanyheads'][action]
         msg %= (branch, len(bheads) + 1)
         raise error.ManyMergeDestAbort(msg, hint=hint)
     elif not nbhs:
         # Case B: There is no other anonymous heads
         #
         # This means that there is no natural candidate to merge with.
         # We abort, with various messages for various cases.
         if bheads:
             msg, hint = msgdestmerge['bookmarkedheads'][action]
         elif len(repo.heads()) > 1:
             msg, hint = msgdestmerge['nootherbranchheads'][action]
             msg %= branch
         elif not onhead:
             # if 'onheadcheck == False' (rebase case),
             # this was not caught in Case A.
             msg, hint = msgdestmerge['nootherheadsbehind'][action]
         else:
             msg, hint = msgdestmerge['nootherheads'][action]
         raise error.NoMergeDestAbort(msg, hint=hint)
     else:
         node = nbhs[0]
     assert node is not None
     return node
 
 def destmerge(repo, action='merge', sourceset=None, onheadcheck=True):
     """return the default destination for a merge
 
     (or raise exception about why it can't pick one)
 
     :action: the action being performed, controls emitted error message
     """
     if repo._activebookmark:
         node = _destmergebook(repo, action=action, sourceset=sourceset)
     else:
         node = _destmergebranch(repo, action=action, sourceset=sourceset,
                                 onheadcheck=onheadcheck)
     return repo[node].rev()
 
 histeditdefaultrevset = 'reverse(only(.) and not public() and not ::merge())'
 
 def desthistedit(ui, repo):
     """Default base revision to edit for `hg histedit`."""
     # Avoid cycle: scmutil -> revset -> destutil
     from . import scmutil
 
     default = ui.config('histedit', 'defaultrev', histeditdefaultrevset)
     if default:
         revs = scmutil.revrange(repo, [default])
         if revs:
             # The revset supplied by the user may not be in ascending order nor
             # take the first revision. So do this manually.
             revs.sort()
             return revs.first()
 
     return None
 
 def _statusotherbook(ui, repo):
     bmheads = repo.bookmarkheads(repo._activebookmark)
     curhead = repo[repo._activebookmark].node()
     if repo.revs('%n and parents()', curhead):
         # we are on the active bookmark
         bmheads = [b for b in bmheads if curhead != b]
         if bmheads:
             msg = _('%i other divergent bookmarks for "%s"\n')
             ui.status(msg % (len(bmheads), repo._activebookmark))
 
 def _statusotherbranchheads(ui, repo):
     currentbranch = repo.dirstate.branch()
     heads = repo.branchheads(currentbranch)
     l = len(heads)
     if repo.revs('%ln and parents()', heads):
         # we are on a head
         heads = repo.revs('%ln - parents()', heads)
         if heads and l != len(heads):
             ui.status(_('%i other heads for branch "%s"\n') %
                       (len(heads), currentbranch))
 
 def statusotherdests(ui, repo):
     """Print message about other head"""
     # XXX we should probably include a hint:
     # - about what to do
     # - how to see such heads
     if repo._activebookmark:
         _statusotherbook(ui, repo)
     else:
         _statusotherbranchheads(ui, repo)

tests/test-largefiles-misc.t

@@ -1,1101 +1,1101
 This file contains testcases that tend to be related to special cases or less
 common commands affecting largefile.
 
 Each sections should be independent of each others.
 
   $ USERCACHE="$TESTTMP/cache"; export USERCACHE
   $ mkdir "${USERCACHE}"
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > largefiles=
   > purge=
   > rebase=
   > transplant=
   > [phases]
   > publish=False
   > [largefiles]
   > minsize=2
   > patterns=glob:**.dat
   > usercache=${USERCACHE}
   > [hooks]
   > precommit=sh -c "echo \\"Invoking status precommit hook\\"; hg status"
   > EOF
 
 
 
 Test copies and moves from a directory other than root (issue3516)
 =========================================================================
 
   $ hg init lf_cpmv
   $ cd lf_cpmv
   $ mkdir dira
   $ mkdir dira/dirb
   $ touch dira/dirb/largefile
   $ hg add --large dira/dirb/largefile
   $ hg commit -m "added"
   Invoking status precommit hook
   A dira/dirb/largefile
   $ cd dira
   $ hg cp dirb/largefile foo/largefile
 
 TODO: Ideally, this should mention the largefile, not the standin
   $ hg log -T '{rev}\n' --stat 'set:clean()'
   0
    .hglf/dira/dirb/largefile |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   
   $ hg ci -m "deep copy"
   Invoking status precommit hook
   A dira/foo/largefile
   $ find . | sort
   .
   ./dirb
   ./dirb/largefile
   ./foo
   ./foo/largefile
   $ hg mv foo/largefile baz/largefile
   $ hg ci -m "moved"
   Invoking status precommit hook
   A dira/baz/largefile
   R dira/foo/largefile
   $ find . | sort
   .
   ./baz
   ./baz/largefile
   ./dirb
   ./dirb/largefile
   $ cd ..
   $ hg mv dira dirc
   moving .hglf/dira/baz/largefile to .hglf/dirc/baz/largefile (glob)
   moving .hglf/dira/dirb/largefile to .hglf/dirc/dirb/largefile (glob)
   $ find * | sort
   dirc
   dirc/baz
   dirc/baz/largefile
   dirc/dirb
   dirc/dirb/largefile
 
   $ hg clone -q . ../fetch
   $ hg --config extensions.fetch= fetch ../fetch
   abort: uncommitted changes
   [255]
   $ hg up -qC
   $ cd ..
 
 Clone a local repository owned by another user
 ===================================================
 
 #if unix-permissions
 
 We have to simulate that here by setting $HOME and removing write permissions
   $ ORIGHOME="$HOME"
   $ mkdir alice
   $ HOME="`pwd`/alice"
   $ cd alice
   $ hg init pubrepo
   $ cd pubrepo
   $ dd if=/dev/zero bs=1k count=11k > a-large-file 2> /dev/null
   $ hg add --large a-large-file
   $ hg commit -m "Add a large file"
   Invoking status precommit hook
   A a-large-file
   $ cd ..
   $ chmod -R a-w pubrepo
   $ cd ..
   $ mkdir bob
   $ HOME="`pwd`/bob"
   $ cd bob
   $ hg clone --pull ../alice/pubrepo pubrepo
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
   updating to branch default
   getting changed largefiles
   1 largefiles updated, 0 removed
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ..
   $ chmod -R u+w alice/pubrepo
   $ HOME="$ORIGHOME"
 
 #endif
 
 
 Symlink to a large largefile should behave the same as a symlink to a normal file
 =====================================================================================
 
 #if symlink
 
   $ hg init largesymlink
   $ cd largesymlink
   $ dd if=/dev/zero bs=1k count=10k of=largefile 2>/dev/null
   $ hg add --large largefile
   $ hg commit -m "commit a large file"
   Invoking status precommit hook
   A largefile
   $ ln -s largefile largelink
   $ hg add largelink
   $ hg commit -m "commit a large symlink"
   Invoking status precommit hook
   A largelink
   $ rm -f largelink
   $ hg up >/dev/null
   $ test -f largelink
   [1]
   $ test -L largelink
   [1]
   $ rm -f largelink # make next part of the test independent of the previous
   $ hg up -C >/dev/null
   $ test -f largelink
   $ test -L largelink
   $ cd ..
 
 #endif
 
 
 test for pattern matching on 'hg status':
 ==============================================
 
 
 to boost performance, largefiles checks whether specified patterns are
 related to largefiles in working directory (NOT to STANDIN) or not.
 
   $ hg init statusmatch
   $ cd statusmatch
 
   $ mkdir -p a/b/c/d
   $ echo normal > a/b/c/d/e.normal.txt
   $ hg add a/b/c/d/e.normal.txt
   $ echo large > a/b/c/d/e.large.txt
   $ hg add --large a/b/c/d/e.large.txt
   $ mkdir -p a/b/c/x
   $ echo normal > a/b/c/x/y.normal.txt
   $ hg add a/b/c/x/y.normal.txt
   $ hg commit -m 'add files'
   Invoking status precommit hook
   A a/b/c/d/e.large.txt
   A a/b/c/d/e.normal.txt
   A a/b/c/x/y.normal.txt
 
 (1) no pattern: no performance boost
   $ hg status -A
   C a/b/c/d/e.large.txt
   C a/b/c/d/e.normal.txt
   C a/b/c/x/y.normal.txt
 
 (2) pattern not related to largefiles: performance boost
   $ hg status -A a/b/c/x
   C a/b/c/x/y.normal.txt
 
 (3) pattern related to largefiles: no performance boost
   $ hg status -A a/b/c/d
   C a/b/c/d/e.large.txt
   C a/b/c/d/e.normal.txt
 
 (4) pattern related to STANDIN (not to largefiles): performance boost
   $ hg status -A .hglf/a
   C .hglf/a/b/c/d/e.large.txt
 
 (5) mixed case: no performance boost
   $ hg status -A a/b/c/x a/b/c/d
   C a/b/c/d/e.large.txt
   C a/b/c/d/e.normal.txt
   C a/b/c/x/y.normal.txt
 
 verify that largefiles doesn't break filesets
 
   $ hg log --rev . --exclude "set:binary()"
   changeset:   0:41bd42f10efa
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     add files
   
 verify that large files in subrepos handled properly
   $ hg init subrepo
   $ echo "subrepo = subrepo" > .hgsub
   $ hg add .hgsub
   $ hg ci -m "add subrepo"
   Invoking status precommit hook
   A .hgsub
   ? .hgsubstate
   $ echo "rev 1" > subrepo/large.txt
   $ hg add --large subrepo/large.txt
   $ hg sum
   parent: 1:8ee150ea2e9c tip
    add subrepo
   branch: default
   commit: 1 subrepos
   update: (current)
   phases: 2 draft
   $ hg st
   $ hg st -S
   A subrepo/large.txt
   $ hg ci -S -m "commit top repo"
   committing subrepository subrepo
   Invoking status precommit hook
   A large.txt
   Invoking status precommit hook
   M .hgsubstate
 # No differences
   $ hg st -S
   $ hg sum
   parent: 2:ce4cd0c527a6 tip
    commit top repo
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
   $ echo "rev 2" > subrepo/large.txt
   $ hg st -S
   M subrepo/large.txt
   $ hg sum
   parent: 2:ce4cd0c527a6 tip
    commit top repo
   branch: default
   commit: 1 subrepos
   update: (current)
   phases: 3 draft
   $ hg ci -m "this commit should fail without -S"
   abort: uncommitted changes in subrepository 'subrepo'
   (use --subrepos for recursive commit)
   [255]
 
 Add a normal file to the subrepo, then test archiving
 
   $ echo 'normal file' > subrepo/normal.txt
   $ touch large.dat
   $ mv subrepo/large.txt subrepo/renamed-large.txt
   $ hg addremove -S --dry-run
   adding large.dat as a largefile
   removing subrepo/large.txt
   adding subrepo/normal.txt
   adding subrepo/renamed-large.txt
   $ hg status -S
   ! subrepo/large.txt
   ? large.dat
   ? subrepo/normal.txt
   ? subrepo/renamed-large.txt
 
   $ hg addremove --dry-run subrepo
   removing subrepo/large.txt (glob)
   adding subrepo/normal.txt (glob)
   adding subrepo/renamed-large.txt (glob)
   $ hg status -S
   ! subrepo/large.txt
   ? large.dat
   ? subrepo/normal.txt
   ? subrepo/renamed-large.txt
   $ cd ..
 
   $ hg -R statusmatch addremove --dry-run statusmatch/subrepo
   removing statusmatch/subrepo/large.txt (glob)
   adding statusmatch/subrepo/normal.txt (glob)
   adding statusmatch/subrepo/renamed-large.txt (glob)
   $ hg -R statusmatch status -S
   ! subrepo/large.txt
   ? large.dat
   ? subrepo/normal.txt
   ? subrepo/renamed-large.txt
 
   $ hg -R statusmatch addremove --dry-run -S
   adding large.dat as a largefile
   removing subrepo/large.txt
   adding subrepo/normal.txt
   adding subrepo/renamed-large.txt
   $ cd statusmatch
 
   $ mv subrepo/renamed-large.txt subrepo/large.txt
   $ hg addremove subrepo
   adding subrepo/normal.txt (glob)
   $ hg forget subrepo/normal.txt
 
   $ hg addremove -S
   adding large.dat as a largefile
   adding subrepo/normal.txt
   $ rm large.dat
 
   $ hg addremove subrepo
   $ hg addremove -S
   removing large.dat
 
 Lock in subrepo, otherwise the change isn't archived
 
   $ hg ci -S -m "add normal file to top level"
   committing subrepository subrepo
   Invoking status precommit hook
   M large.txt
   A normal.txt
   Invoking status precommit hook
   M .hgsubstate
   $ hg archive -S ../lf_subrepo_archive
   $ find ../lf_subrepo_archive | sort
   ../lf_subrepo_archive
   ../lf_subrepo_archive/.hg_archival.txt
   ../lf_subrepo_archive/.hgsub
   ../lf_subrepo_archive/.hgsubstate
   ../lf_subrepo_archive/a
   ../lf_subrepo_archive/a/b
   ../lf_subrepo_archive/a/b/c
   ../lf_subrepo_archive/a/b/c/d
   ../lf_subrepo_archive/a/b/c/d/e.large.txt
   ../lf_subrepo_archive/a/b/c/d/e.normal.txt
   ../lf_subrepo_archive/a/b/c/x
   ../lf_subrepo_archive/a/b/c/x/y.normal.txt
   ../lf_subrepo_archive/subrepo
   ../lf_subrepo_archive/subrepo/large.txt
   ../lf_subrepo_archive/subrepo/normal.txt
   $ cat ../lf_subrepo_archive/.hg_archival.txt
   repo: 41bd42f10efa43698cc02052ea0977771cba506d
   node: d56a95e6522858bc08a724c4fe2bdee066d1c30b
   branch: default
   latesttag: null
   latesttagdistance: 4
   changessincelatesttag: 4
 
 Test update with subrepos.
 
   $ hg update 0
   getting changed largefiles
   0 largefiles updated, 1 removed
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg status -S
   $ hg update tip
   getting changed largefiles
   1 largefiles updated, 0 removed
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg status -S
 # modify a large file
   $ echo "modified" > subrepo/large.txt
   $ hg st -S
   M subrepo/large.txt
 # update -C should revert the change.
   $ hg update -C
   getting changed largefiles
   1 largefiles updated, 0 removed
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg status -S
 
   $ hg forget -v subrepo/large.txt
   removing subrepo/large.txt (glob)
 
 Test reverting a forgotten file
   $ hg revert -R subrepo subrepo/large.txt
   $ hg status -SA subrepo/large.txt
   C subrepo/large.txt
 
   $ hg rm -v subrepo/large.txt
   removing subrepo/large.txt (glob)
   $ hg revert -R subrepo subrepo/large.txt
   $ rm subrepo/large.txt
   $ hg addremove -S
   removing subrepo/large.txt
   $ hg st -S
   R subrepo/large.txt
 
 Test archiving a revision that references a subrepo that is not yet
 cloned (see test-subrepo-recursion.t):
 
   $ hg clone -U . ../empty
   $ cd ../empty
   $ hg archive --subrepos -r tip ../archive.tar.gz
   cloning subrepo subrepo from $TESTTMP/statusmatch/subrepo
   $ cd ..
 
 
 
 
 
 
 Test addremove, forget and others
 ==============================================
 
 Test that addremove picks up largefiles prior to the initial commit (issue3541)
 
   $ hg init addrm2
   $ cd addrm2
   $ touch large.dat
   $ touch large2.dat
   $ touch normal
   $ hg add --large large.dat
   $ hg addremove -v
   adding large2.dat as a largefile
   adding normal
 
 Test that forgetting all largefiles reverts to islfilesrepo() == False
 (addremove will add *.dat as normal files now)
   $ hg forget large.dat
   $ hg forget large2.dat
   $ hg addremove -v
   adding large.dat
   adding large2.dat
 
 Test commit's addremove option prior to the first commit
   $ hg forget large.dat
   $ hg forget large2.dat
   $ hg add --large large.dat
   $ hg ci -Am "commit"
   adding large2.dat as a largefile
   Invoking status precommit hook
   A large.dat
   A large2.dat
   A normal
   $ find .hglf | sort
   .hglf
   .hglf/large.dat
   .hglf/large2.dat
 
 Test actions on largefiles using relative paths from subdir
 
   $ mkdir sub
   $ cd sub
   $ echo anotherlarge > anotherlarge
   $ hg add --large anotherlarge
   $ hg st
   A sub/anotherlarge
   $ hg st anotherlarge
   A anotherlarge
   $ hg commit -m anotherlarge anotherlarge
   Invoking status precommit hook
   A sub/anotherlarge
   $ hg log anotherlarge
   changeset:   1:9627a577c5e9
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     anotherlarge
   
   $ hg --debug log -T '{rev}: {desc}\n' ../sub/anotherlarge
   updated patterns: ['../.hglf/sub/../sub/anotherlarge', '../sub/anotherlarge']
   1: anotherlarge
 
   $ hg log -G anotherlarge
   @  changeset:   1:9627a577c5e9
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     anotherlarge
   |
 
   $ hg log glob:another*
   changeset:   1:9627a577c5e9
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     anotherlarge
   
   $ hg --debug log -T '{rev}: {desc}\n' -G glob:another*
   updated patterns: ['glob:../.hglf/sub/another*', 'glob:another*']
   @  1: anotherlarge
   |
 
 #if no-msys
   $ hg --debug log -T '{rev}: {desc}\n' 'glob:../.hglf/sub/another*' # no-msys
   updated patterns: ['glob:../.hglf/sub/another*']
   1: anotherlarge
 
   $ hg --debug log -G -T '{rev}: {desc}\n' 'glob:../.hglf/sub/another*' # no-msys
   updated patterns: ['glob:../.hglf/sub/another*']
   @  1: anotherlarge
   |
 #endif
 
   $ echo more >> anotherlarge
   $ hg st .
   M anotherlarge
   $ hg cat anotherlarge
   anotherlarge
   $ hg revert anotherlarge
   $ hg st
   ? sub/anotherlarge.orig
 
 Test orig files go where we want them
   $ echo moremore >> anotherlarge
   $ hg revert anotherlarge -v --config 'ui.origbackuppath=.hg/origbackups'
   creating directory: $TESTTMP/addrm2/.hg/origbackups/.hglf/sub (glob)
   saving current version of ../.hglf/sub/anotherlarge as $TESTTMP/addrm2/.hg/origbackups/.hglf/sub/anotherlarge.orig (glob)
   reverting ../.hglf/sub/anotherlarge (glob)
   creating directory: $TESTTMP/addrm2/.hg/origbackups/sub (glob)
   found 90c622cf65cebe75c5842f9136c459333faf392e in store
   found 90c622cf65cebe75c5842f9136c459333faf392e in store
   $ ls ../.hg/origbackups/sub
   anotherlarge.orig
   $ cd ..
 
 Test glob logging from the root dir
   $ hg log glob:**another*
   changeset:   1:9627a577c5e9
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     anotherlarge
   
   $ hg log -G glob:**another*
   @  changeset:   1:9627a577c5e9
   |  tag:         tip
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     anotherlarge
   |
 
   $ cd ..
 
 Log from outer space
   $ hg --debug log -R addrm2 -T '{rev}: {desc}\n' 'addrm2/sub/anotherlarge'
   updated patterns: ['addrm2/.hglf/sub/anotherlarge', 'addrm2/sub/anotherlarge']
   1: anotherlarge
   $ hg --debug log -R addrm2 -T '{rev}: {desc}\n' 'addrm2/.hglf/sub/anotherlarge'
   updated patterns: ['addrm2/.hglf/sub/anotherlarge']
   1: anotherlarge
 
 
 Check error message while exchange
 =========================================================
 
 issue3651: summary/outgoing with largefiles shows "no remote repo"
 unexpectedly
 
   $ mkdir issue3651
   $ cd issue3651
 
   $ hg init src
   $ echo a > src/a
   $ hg -R src add --large src/a
   $ hg -R src commit -m '#0'
   Invoking status precommit hook
   A a
 
 check messages when no remote repository is specified:
 "no remote repo" route for "hg outgoing --large" is not tested here,
 because it can't be reproduced easily.
 
   $ hg init clone1
   $ hg -R clone1 -q pull src
   $ hg -R clone1 -q update
   $ hg -R clone1 paths | grep default
   [1]
 
   $ hg -R clone1 summary --large
   parent: 0:fc0bd45326d3 tip
    #0
   branch: default
   commit: (clean)
   update: (current)
   phases: 1 draft
   largefiles: (no remote repo)
 
 check messages when there is no files to upload:
 
   $ hg -q clone src clone2
   $ hg -R clone2 paths | grep default
   default = $TESTTMP/issue3651/src (glob)
 
   $ hg -R clone2 summary --large
   parent: 0:fc0bd45326d3 tip
    #0
   branch: default
   commit: (clean)
   update: (current)
   phases: 1 draft
   largefiles: (no files to upload)
   $ hg -R clone2 outgoing --large
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   no changes found
   largefiles: no files to upload
   [1]
 
   $ hg -R clone2 outgoing --large --graph --template "{rev}"
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   no changes found
   largefiles: no files to upload
 
 check messages when there are files to upload:
 
   $ echo b > clone2/b
   $ hg -R clone2 add --large clone2/b
   $ hg -R clone2 commit -m '#1'
   Invoking status precommit hook
   A b
   $ hg -R clone2 summary --large
   parent: 1:1acbe71ce432 tip
    #1
   branch: default
   commit: (clean)
   update: (current)
   phases: 2 draft
   largefiles: 1 entities for 1 files to upload
   $ hg -R clone2 outgoing --large
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   changeset:   1:1acbe71ce432
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     #1
   
   largefiles to upload (1 entities):
   b
   
   $ hg -R clone2 outgoing --large --graph --template "{rev}"
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   @  1
   
   largefiles to upload (1 entities):
   b
   
 
   $ cp clone2/b clone2/b1
   $ cp clone2/b clone2/b2
   $ hg -R clone2 add --large clone2/b1 clone2/b2
   $ hg -R clone2 commit -m '#2: add largefiles referring same entity'
   Invoking status precommit hook
   A b1
   A b2
   $ hg -R clone2 summary --large
   parent: 2:6095d0695d70 tip
    #2: add largefiles referring same entity
   branch: default
   commit: (clean)
   update: (current)
   phases: 3 draft
   largefiles: 1 entities for 3 files to upload
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n"
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   1:1acbe71ce432
   2:6095d0695d70
   largefiles to upload (1 entities):
   b
   b1
   b2
   
   $ hg -R clone2 cat -r 1 clone2/.hglf/b
   89e6c98d92887913cadf06b2adb97f26cde4849b
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n" --debug --config progress.debug=true
   comparing with $TESTTMP/issue3651/src (glob)
   query 1; heads
   searching for changes
   all remote heads known locally
   1:1acbe71ce432
   2:6095d0695d70
   finding outgoing largefiles: 0/2 revision (0.00%)
   finding outgoing largefiles: 1/2 revision (50.00%)
   largefiles to upload (1 entities):
   b
       89e6c98d92887913cadf06b2adb97f26cde4849b
   b1
       89e6c98d92887913cadf06b2adb97f26cde4849b
   b2
       89e6c98d92887913cadf06b2adb97f26cde4849b
   
 
   $ echo bbb > clone2/b
   $ hg -R clone2 commit -m '#3: add new largefile entity as existing file'
   Invoking status precommit hook
   M b
   $ echo bbbb > clone2/b
   $ hg -R clone2 commit -m '#4: add new largefile entity as existing file'
   Invoking status precommit hook
   M b
   $ cp clone2/b1 clone2/b
   $ hg -R clone2 commit -m '#5: refer existing largefile entity again'
   Invoking status precommit hook
   M b
   $ hg -R clone2 summary --large
   parent: 5:036794ea641c tip
    #5: refer existing largefile entity again
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
   largefiles: 3 entities for 3 files to upload
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n"
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   1:1acbe71ce432
   2:6095d0695d70
   3:7983dce246cc
   4:233f12ada4ae
   5:036794ea641c
   largefiles to upload (3 entities):
   b
   b1
   b2
   
   $ hg -R clone2 cat -r 3 clone2/.hglf/b
   c801c9cfe94400963fcb683246217d5db77f9a9a
   $ hg -R clone2 cat -r 4 clone2/.hglf/b
   13f9ed0898e315bf59dc2973fec52037b6f441a2
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n" --debug --config progress.debug=true
   comparing with $TESTTMP/issue3651/src (glob)
   query 1; heads
   searching for changes
   all remote heads known locally
   1:1acbe71ce432
   2:6095d0695d70
   3:7983dce246cc
   4:233f12ada4ae
   5:036794ea641c
   finding outgoing largefiles: 0/5 revision (0.00%)
   finding outgoing largefiles: 1/5 revision (20.00%)
   finding outgoing largefiles: 2/5 revision (40.00%)
   finding outgoing largefiles: 3/5 revision (60.00%)
   finding outgoing largefiles: 4/5 revision (80.00%)
   largefiles to upload (3 entities):
   b
       13f9ed0898e315bf59dc2973fec52037b6f441a2
       89e6c98d92887913cadf06b2adb97f26cde4849b
       c801c9cfe94400963fcb683246217d5db77f9a9a
   b1
       89e6c98d92887913cadf06b2adb97f26cde4849b
   b2
       89e6c98d92887913cadf06b2adb97f26cde4849b
   
 
 Pushing revision #1 causes uploading entity 89e6c98d9288, which is
 shared also by largefiles b1, b2 in revision #2 and b in revision #5.
 
 Then, entity 89e6c98d9288 is not treated as "outgoing entity" at "hg
 summary" and "hg outgoing", even though files in outgoing revision #2
 and #5 refer it.
 
   $ hg -R clone2 push -r 1 -q
   $ hg -R clone2 summary --large
   parent: 5:036794ea641c tip
    #5: refer existing largefile entity again
   branch: default
   commit: (clean)
   update: (current)
   phases: 6 draft
   largefiles: 2 entities for 1 files to upload
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n"
   comparing with $TESTTMP/issue3651/src (glob)
   searching for changes
   2:6095d0695d70
   3:7983dce246cc
   4:233f12ada4ae
   5:036794ea641c
   largefiles to upload (2 entities):
   b
   
   $ hg -R clone2 outgoing --large -T "{rev}:{node|short}\n" --debug --config progress.debug=true
   comparing with $TESTTMP/issue3651/src (glob)
   query 1; heads
   searching for changes
   all remote heads known locally
   2:6095d0695d70
   3:7983dce246cc
   4:233f12ada4ae
   5:036794ea641c
   finding outgoing largefiles: 0/4 revision (0.00%)
   finding outgoing largefiles: 1/4 revision (25.00%)
   finding outgoing largefiles: 2/4 revision (50.00%)
   finding outgoing largefiles: 3/4 revision (75.00%)
   largefiles to upload (2 entities):
   b
       13f9ed0898e315bf59dc2973fec52037b6f441a2
       c801c9cfe94400963fcb683246217d5db77f9a9a
   
 
   $ cd ..
 
 merge action 'd' for 'local renamed directory to d2/g' which has no filename
 ==================================================================================
 
   $ hg init merge-action
   $ cd merge-action
   $ touch l
   $ hg add --large l
   $ mkdir d1
   $ touch d1/f
   $ hg ci -Aqm0
   Invoking status precommit hook
   A d1/f
   A l
   $ echo > d1/f
   $ touch d1/g
   $ hg ci -Aqm1
   Invoking status precommit hook
   M d1/f
   A d1/g
   $ hg up -qr0
   $ hg mv d1 d2
   moving d1/f to d2/f (glob)
   $ hg ci -qm2
   Invoking status precommit hook
   A d2/f
   R d1/f
   $ hg merge
   merging d2/f and d1/f to d2/f
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ cd ..
 
 
 Merge conflicts:
 =====================
 
   $ hg init merge
   $ cd merge
   $ echo 0 > f-different
   $ echo 0 > f-same
   $ echo 0 > f-unchanged-1
   $ echo 0 > f-unchanged-2
   $ hg add --large *
   $ hg ci -m0
   Invoking status precommit hook
   A f-different
   A f-same
   A f-unchanged-1
   A f-unchanged-2
   $ echo tmp1 > f-unchanged-1
   $ echo tmp1 > f-unchanged-2
   $ echo tmp1 > f-same
   $ hg ci -m1
   Invoking status precommit hook
   M f-same
   M f-unchanged-1
   M f-unchanged-2
   $ echo 2 > f-different
   $ echo 0 > f-unchanged-1
   $ echo 1 > f-unchanged-2
   $ echo 1 > f-same
   $ hg ci -m2
   Invoking status precommit hook
   M f-different
   M f-same
   M f-unchanged-1
   M f-unchanged-2
   $ hg up -qr0
   $ echo tmp2 > f-unchanged-1
   $ echo tmp2 > f-unchanged-2
   $ echo tmp2 > f-same
   $ hg ci -m3
   Invoking status precommit hook
   M f-same
   M f-unchanged-1
   M f-unchanged-2
   created new head
   $ echo 1 > f-different
   $ echo 1 > f-unchanged-1
   $ echo 0 > f-unchanged-2
   $ echo 1 > f-same
   $ hg ci -m4
   Invoking status precommit hook
   M f-different
   M f-same
   M f-unchanged-1
   M f-unchanged-2
   $ hg merge
   largefile f-different has a merge conflict
   ancestor was 09d2af8dd22201dd8d48e5dcfcaed281ff9422c7
   keep (l)ocal e5fa44f2b31c1fb553b6021e7360d07d5d91ff5e or
   take (o)ther 7448d8798a4380162d4b56f9b452e2f6f9e24e7a? l
   getting changed largefiles
   1 largefiles updated, 0 removed
   0 files updated, 4 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ cat f-different
   1
   $ cat f-same
   1
   $ cat f-unchanged-1
   1
   $ cat f-unchanged-2
   1
   $ cd ..
 
 Test largefile insulation (do not enabled a side effect
 ========================================================
 
 Check whether "largefiles" feature is supported only in repositories
 enabling largefiles extension.
 
   $ mkdir individualenabling
   $ cd individualenabling
 
   $ hg init enabledlocally
   $ echo large > enabledlocally/large
   $ hg -R enabledlocally add --large enabledlocally/large
   $ hg -R enabledlocally commit -m '#0'
   Invoking status precommit hook
   A large
 
   $ hg init notenabledlocally
   $ echo large > notenabledlocally/large
   $ hg -R notenabledlocally add --large notenabledlocally/large
   $ hg -R notenabledlocally commit -m '#0'
   Invoking status precommit hook
   A large
 
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > # disable globally
   > largefiles=!
   > EOF
   $ cat >> enabledlocally/.hg/hgrc <<EOF
   > [extensions]
   > # enable locally
   > largefiles=
   > EOF
   $ hg -R enabledlocally root
   $TESTTMP/individualenabling/enabledlocally (glob)
   $ hg -R notenabledlocally root
   abort: repository requires features unknown to this Mercurial: largefiles!
   (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
   [255]
 
   $ hg init push-dst
   $ hg -R enabledlocally push push-dst
   pushing to push-dst
   abort: required features are not supported in the destination: largefiles
   [255]
 
   $ hg init pull-src
   $ hg -R pull-src pull enabledlocally
   pulling from enabledlocally
   abort: required features are not supported in the destination: largefiles
   [255]
 
   $ hg clone enabledlocally clone-dst
   abort: repository requires features unknown to this Mercurial: largefiles!
   (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
   [255]
   $ test -d clone-dst
   [1]
   $ hg clone --pull enabledlocally clone-pull-dst
   abort: required features are not supported in the destination: largefiles
   [255]
   $ test -d clone-pull-dst
   [1]
 
 #if serve
 
 Test largefiles specific peer setup, when largefiles is enabled
 locally (issue4109)
 
   $ hg showconfig extensions | grep largefiles
   extensions.largefiles=!
   $ mkdir -p $TESTTMP/individualenabling/usercache
 
   $ hg serve -R enabledlocally -d -p $HGPORT --pid-file hg.pid
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ hg init pull-dst
   $ cat > pull-dst/.hg/hgrc <<EOF
   > [extensions]
   > # enable locally
   > largefiles=
   > [largefiles]
   > # ignore system cache to force largefiles specific wire proto access
   > usercache=$TESTTMP/individualenabling/usercache
   > EOF
   $ hg -R pull-dst -q pull -u http://localhost:$HGPORT
 
   $ killdaemons.py
 #endif
 
 Test overridden functions work correctly even for repos disabling
 largefiles (issue4547)
 
   $ hg showconfig extensions | grep largefiles
   extensions.largefiles=!
 
 (test updating implied by clone)
 
   $ hg init enabled-but-no-largefiles
   $ echo normal1 > enabled-but-no-largefiles/normal1
   $ hg -R enabled-but-no-largefiles add enabled-but-no-largefiles/normal1
   $ hg -R enabled-but-no-largefiles commit -m '#0@enabled-but-no-largefiles'
   Invoking status precommit hook
   A normal1
   $ cat >> enabled-but-no-largefiles/.hg/hgrc <<EOF
   > [extensions]
   > # enable locally
   > largefiles=
   > EOF
   $ hg clone -q enabled-but-no-largefiles no-largefiles
 
   $ echo normal2 > enabled-but-no-largefiles/normal2
   $ hg -R enabled-but-no-largefiles add enabled-but-no-largefiles/normal2
   $ hg -R enabled-but-no-largefiles commit -m '#1@enabled-but-no-largefiles'
   Invoking status precommit hook
   A normal2
 
   $ echo normal3 > no-largefiles/normal3
   $ hg -R no-largefiles add no-largefiles/normal3
   $ hg -R no-largefiles commit -m '#1@no-largefiles'
   Invoking status precommit hook
   A normal3
 
   $ hg -R no-largefiles -q pull --rebase
   Invoking status precommit hook
   A normal3
 
 (test reverting)
 
   $ hg init subrepo-root
   $ cat >> subrepo-root/.hg/hgrc <<EOF
   > [extensions]
   > # enable locally
   > largefiles=
   > EOF
   $ echo large > subrepo-root/large
   $ hg -R subrepo-root add --large subrepo-root/large
   $ hg clone -q no-largefiles subrepo-root/no-largefiles
   $ cat > subrepo-root/.hgsub <<EOF
   > no-largefiles = no-largefiles
   > EOF
   $ hg -R subrepo-root add subrepo-root/.hgsub
   $ hg -R subrepo-root commit -m '#0'
   Invoking status precommit hook
   A .hgsub
   A large
   ? .hgsubstate
   $ echo dirty >> subrepo-root/large
   $ echo dirty >> subrepo-root/no-largefiles/normal1
   $ hg -R subrepo-root status -S
   M large
   M no-largefiles/normal1
   $ hg -R subrepo-root revert --all
   reverting subrepo-root/.hglf/large (glob)
   reverting subrepo no-largefiles
   reverting subrepo-root/no-largefiles/normal1 (glob)
 
   $ cd ..
 
 
 Test "pull --rebase" when rebase is enabled before largefiles (issue3861)
 =========================================================================
 
   $ hg showconfig extensions | grep largefiles
   extensions.largefiles=!
 
   $ mkdir issue3861
   $ cd issue3861
   $ hg init src
   $ hg clone -q src dst
   $ echo a > src/a
   $ hg -R src commit -Aqm "#0"
   Invoking status precommit hook
   A a
 
   $ cat >> dst/.hg/hgrc <<EOF
   > [extensions]
   > largefiles=
   > EOF
   $ hg -R dst pull --rebase
   pulling from $TESTTMP/issue3861/src (glob)
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
-  nothing to rebase - working directory parent is already an ancestor of destination bf5e395ced2c
+  nothing to rebase - updating instead
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd ..

tests/test-rebase-named-branches.t

@@ -1,390 +1,390
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > rebase=
   > 
   > [phases]
   > publish=False
   > 
   > [alias]
   > tglog = log -G --template "{rev}: '{desc}' {branches}\n"
   > EOF
 
   $ hg init a
   $ cd a
   $ hg unbundle "$TESTDIR/bundles/rebase.hg"
   adding changesets
   adding manifests
   adding file changes
   added 8 changesets with 7 changes to 7 files (+2 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg up tip
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ..
 
   $ hg clone -q -u . a a1
 
   $ cd a1
 
   $ hg update 3
   3 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg branch dev-one
   marked working directory as branch dev-one
   (branches are permanent and global, did you want a bookmark?)
   $ hg ci -m 'dev-one named branch'
 
   $ hg update 7
   2 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ hg branch dev-two
   marked working directory as branch dev-two
 
   $ echo x > x
 
   $ hg add x
 
   $ hg ci -m 'dev-two named branch'
 
   $ hg tglog
   @  9: 'dev-two named branch' dev-two
   |
   | o  8: 'dev-one named branch' dev-one
   | |
   o |  7: 'H'
   | |
   +---o  6: 'G'
   | | |
   o | |  5: 'F'
   | | |
   +---o  4: 'E'
   | |
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
 
 Branch name containing a dash (issue3181)
 
   $ hg rebase -b dev-two -d dev-one --keepbranches
   rebasing 5:24b6387c8c8c "F"
   rebasing 6:eea13746799a "G"
   rebasing 7:02de42196ebe "H"
   rebasing 9:cb039b7cae8e "dev-two named branch" (tip)
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/24b6387c8c8c-24cb8001-backup.hg (glob)
 
   $ hg tglog
   @  9: 'dev-two named branch' dev-two
   |
   o  8: 'H'
   |
   | o  7: 'G'
   |/|
   o |  6: 'F'
   | |
   o |  5: 'dev-one named branch' dev-one
   | |
   | o  4: 'E'
   | |
   o |  3: 'D'
   | |
   o |  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
   $ hg rebase -s dev-one -d 0 --keepbranches
   rebasing 5:643fc9128048 "dev-one named branch"
   rebasing 6:24de4aff8e28 "F"
   rebasing 7:4b988a958030 "G"
   rebasing 8:31d0e4ba75e6 "H"
   rebasing 9:9e70cd31750f "dev-two named branch" (tip)
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/643fc9128048-c4ee9ef5-backup.hg (glob)
 
   $ hg tglog
   @  9: 'dev-two named branch' dev-two
   |
   o  8: 'H'
   |
   | o  7: 'G'
   |/|
   o |  6: 'F'
   | |
   o |  5: 'dev-one named branch' dev-one
   | |
   | o  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ hg update 3
   3 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ hg branch -f dev-one
   marked working directory as branch dev-one
   $ hg ci -m 'dev-one named branch'
   created new head
 
   $ hg tglog
   @  10: 'dev-one named branch' dev-one
   |
   | o  9: 'dev-two named branch' dev-two
   | |
   | o  8: 'H'
   | |
   | | o  7: 'G'
   | |/|
   | o |  6: 'F'
   | | |
   | o |  5: 'dev-one named branch' dev-one
   | | |
   | | o  4: 'E'
   | |/
   o |  3: 'D'
   | |
   o |  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
   $ hg rebase -b 'max(branch("dev-two"))' -d dev-one --keepbranches
   rebasing 5:bc8139ee757c "dev-one named branch"
   note: rebase of 5:bc8139ee757c created no changes to commit
   rebasing 6:42aa3cf0fa7a "F"
   rebasing 7:1a1e6f72ec38 "G"
   rebasing 8:904590360559 "H"
   rebasing 9:59c2e59309fe "dev-two named branch"
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/bc8139ee757c-f11c1080-backup.hg (glob)
 
   $ hg tglog
   o  9: 'dev-two named branch' dev-two
   |
   o  8: 'H'
   |
   | o  7: 'G'
   |/|
   o |  6: 'F'
   | |
   @ |  5: 'dev-one named branch' dev-one
   | |
   | o  4: 'E'
   | |
   o |  3: 'D'
   | |
   o |  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
   $ hg rebase -s 'max(branch("dev-one"))' -d 0 --keepbranches
   rebasing 5:643fc9128048 "dev-one named branch"
   rebasing 6:679f28760620 "F"
   rebasing 7:549f007a9f5f "G"
   rebasing 8:12b2bc666e20 "H"
   rebasing 9:71325f8bc082 "dev-two named branch" (tip)
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/643fc9128048-6cdd1a52-backup.hg (glob)
 
   $ hg tglog
   o  9: 'dev-two named branch' dev-two
   |
   o  8: 'H'
   |
   | o  7: 'G'
   |/|
   o |  6: 'F'
   | |
   @ |  5: 'dev-one named branch' dev-one
   | |
   | o  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ hg up -r 0 > /dev/null
 
 Rebasing descendant onto ancestor across different named branches
 
   $ hg rebase -s 1 -d 9 --keepbranches
   rebasing 1:42ccdea3bb16 "B"
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob)
 
   $ hg tglog
   o  9: 'D'
   |
   o  8: 'C'
   |
   o  7: 'B'
   |
   o  6: 'dev-two named branch' dev-two
   |
   o  5: 'H'
   |
   | o  4: 'G'
   |/|
   o |  3: 'F'
   | |
   o |  2: 'dev-one named branch' dev-one
   | |
   | o  1: 'E'
   |/
   @  0: 'A'
   
   $ hg rebase -s 5 -d 6
   abort: source is ancestor of destination
   [255]
 
   $ hg rebase -s 6 -d 5
   rebasing 6:3944801ae4ea "dev-two named branch"
   rebasing 7:3bdb949809d9 "B"
   rebasing 8:a0d543090fa4 "C"
   rebasing 9:e9f862ce8bad "D" (tip)
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/3944801ae4ea-fb46ed74-backup.hg (glob)
 
   $ hg tglog
   o  9: 'D'
   |
   o  8: 'C'
   |
   o  7: 'B'
   |
   o  6: 'dev-two named branch'
   |
   o  5: 'H'
   |
   | o  4: 'G'
   |/|
   o |  3: 'F'
   | |
   o |  2: 'dev-one named branch' dev-one
   | |
   | o  1: 'E'
   |/
   @  0: 'A'
   
 
 Reopen branch by rebase
 
   $ hg up -qr3
   $ hg branch -q b
   $ hg ci -m 'create b'
   $ hg ci -m 'close b' --close
   $ hg rebase -b 8 -d b
   reopening closed branch head 2b586e70108d
   rebasing 5:8e279d293175 "H"
   rebasing 6:c57724c84928 "dev-two named branch"
   rebasing 7:160b0930ccc6 "B"
   rebasing 8:810110211f50 "C"
   rebasing 9:e522577ccdbd "D"
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/8e279d293175-b023e27c-backup.hg (glob)
 
   $ cd ..
 
 Rebase to other head on branch
 
 Set up a case:
 
   $ hg init case1
   $ cd case1
   $ touch f
   $ hg ci -qAm0
   $ hg branch -q b
   $ echo >> f
   $ hg ci -qAm 'b1'
   $ hg up -qr -2
   $ hg branch -qf b
   $ hg ci -qm 'b2'
   $ hg up -qr -3
   $ hg branch -q c
   $ hg ci -m 'c1'
 
   $ hg tglog
   @  3: 'c1' c
   |
   | o  2: 'b2' b
   |/
   | o  1: 'b1' b
   |/
   o  0: '0'
   
   $ hg clone -q . ../case2
 
 rebase 'b2' to another lower branch head
 
   $ hg up -qr 2
   $ hg rebase
-  nothing to rebase - working directory parent is also destination
-  [1]
+  rebasing 2:792845bb77ee "b2"
+  note: rebase of 2:792845bb77ee created no changes to commit
+  saved backup bundle to $TESTTMP/case1/.hg/strip-backup/792845bb77ee-627120ee-backup.hg (glob)
   $ hg tglog
-  o  3: 'c1' c
+  o  2: 'c1' c
   |
-  | @  2: 'b2' b
-  |/
-  | o  1: 'b1' b
+  | @  1: 'b1' b
   |/
   o  0: '0'
   
 
 rebase 'b1' on top of the tip of the branch ('b2') - ignoring the tip branch ('c1')
 
   $ cd ../case2
   $ hg up -qr 1
   $ hg rebase
   rebasing 1:40039acb7ca5 "b1"
   saved backup bundle to $TESTTMP/case2/.hg/strip-backup/40039acb7ca5-342b72d1-backup.hg (glob)
   $ hg tglog
   @  3: 'b1' b
   |
   | o  2: 'c1' c
   | |
   o |  1: 'b2' b
   |/
   o  0: '0'
   
 
 rebase 'c1' to the branch head 'c2' that is closed
 
   $ hg branch -qf c
   $ hg ci -qm 'c2 closed' --close
   $ hg up -qr 2
   $ hg tglog
   _  4: 'c2 closed' c
   |
   o  3: 'b1' b
   |
   | @  2: 'c1' c
   | |
   o |  1: 'b2' b
   |/
   o  0: '0'
   
   $ hg rebase
-  nothing to rebase - working directory parent is also destination
-  [1]
+  abort: branch 'c' has one head - please rebase to an explicit rev
+  (run 'hg heads' to see all heads)
+  [255]
   $ hg tglog
   _  4: 'c2 closed' c
   |
   o  3: 'b1' b
   |
   | @  2: 'c1' c
   | |
   o |  1: 'b2' b
   |/
   o  0: '0'
   
 
   $ cd ..

tests/test-rebase-pull.t

@@ -1,311 +1,311
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > rebase=
   > 
   > [alias]
   > tglog = log -G --template "{rev}: '{desc}' {branches}\n"
   > EOF
 
 
   $ hg init a
   $ cd a
 
   $ echo C1 > C1
   $ hg ci -Am C1
   adding C1
 
   $ echo C2 > C2
   $ hg ci -Am C2
   adding C2
 
   $ cd ..
 
   $ hg clone a b
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ hg clone a c
   updating to branch default
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd b
 
   $ echo L1 > L1
   $ hg ci -Am L1
   adding L1
 
 
   $ cd ../a
 
   $ echo R1 > R1
   $ hg ci -Am R1
   adding R1
 
 
   $ cd ../b
 
 Now b has one revision to be pulled from a:
 
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   rebasing 2:ff8d69a621f9 "L1"
   saved backup bundle to $TESTTMP/b/.hg/strip-backup/ff8d69a621f9-160fa373-backup.hg (glob)
 
   $ hg tglog
   @  3: 'L1'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
 Re-run:
 
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   no changes found
 
 
 Invoke pull --rebase and nothing to rebase:
 
   $ cd ../c
 
   $ hg book norebase
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files
-  nothing to rebase - working directory parent is already an ancestor of destination 77ae9631bcca
+  nothing to rebase - updating instead
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   updating bookmark norebase
 
   $ hg tglog -l 1
   @  2: 'R1'
   |
 
 pull --rebase --update should ignore --update:
 
   $ hg pull --rebase --update
   pulling from $TESTTMP/a (glob)
   searching for changes
   no changes found
 
 pull --rebase doesn't update if nothing has been pulled:
 
   $ hg up -q 1
 
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   no changes found
 
   $ hg tglog -l 1
   o  2: 'R1'
   |
 
   $ cd ..
 
 pull --rebase works when a specific revision is pulled (issue3619)
 
   $ cd a
   $ hg tglog
   @  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
   $ echo R2 > R2
   $ hg ci -Am R2
   adding R2
   $ echo R3 > R3
   $ hg ci -Am R3
   adding R3
   $ cd ../c
   $ hg tglog
   o  2: 'R1'
   |
   @  1: 'C2'
   |
   o  0: 'C1'
   
   $ echo L1 > L1
   $ hg ci -Am L1
   adding L1
   created new head
   $ hg pull --rev tip --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 2 changesets with 2 changes to 2 files
   rebasing 3:ff8d69a621f9 "L1"
   saved backup bundle to $TESTTMP/c/.hg/strip-backup/ff8d69a621f9-160fa373-backup.hg (glob)
   $ hg tglog
   @  5: 'L1'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
 pull --rebase works with bundle2 turned on
 
   $ cd ../a
   $ echo R4 > R4
   $ hg ci -Am R4
   adding R4
   $ hg tglog
   @  5: 'R4'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
   $ cd ../c
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   rebasing 5:518d153c0ba3 "L1"
   saved backup bundle to $TESTTMP/c/.hg/strip-backup/518d153c0ba3-73407f14-backup.hg (glob)
   $ hg tglog
   @  6: 'L1'
   |
   o  5: 'R4'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
 
 pull --rebase only update if there is nothing to rebase
 
   $ cd ../a
   $ echo R5 > R5
   $ hg ci -Am R5
   adding R5
   $ hg tglog
   @  6: 'R5'
   |
   o  5: 'R4'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
   $ cd ../c
   $ echo L2 > L2
   $ hg ci -Am L2
   adding L2
   $ hg up 'desc(L1)'
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
   rebasing 6:0d0727eb7ce0 "L1"
   rebasing 7:c1f58876e3bf "L2"
   saved backup bundle to $TESTTMP/c/.hg/strip-backup/0d0727eb7ce0-ef61ccb2-backup.hg (glob)
   $ hg tglog
   o  8: 'L2'
   |
   @  7: 'L1'
   |
   o  6: 'R5'
   |
   o  5: 'R4'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   
 
 pull --rebase update (no rebase) use proper update:
 
 - warn about other head.
 
   $ cd ../a
   $ echo R6 > R6
   $ hg ci -Am R6
   adding R6
   $ cd ../c
   $ hg up 'desc(R5)'
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg pull --rebase
   pulling from $TESTTMP/a (glob)
   searching for changes
   adding changesets
   adding manifests
   adding file changes
   added 1 changesets with 1 changes to 1 files (+1 heads)
-  nothing to rebase - working directory parent is already an ancestor of destination 65bc164c1d9b
+  nothing to rebase - updating instead
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   1 other heads for branch "default"
   $ hg tglog
   @  9: 'R6'
   |
   | o  8: 'L2'
   | |
   | o  7: 'L1'
   |/
   o  6: 'R5'
   |
   o  5: 'R4'
   |
   o  4: 'R3'
   |
   o  3: 'R2'
   |
   o  2: 'R1'
   |
   o  1: 'C2'
   |
   o  0: 'C1'
   

tests/test-rebase-scenario-global.t

@@ -1,830 +1,834
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > rebase=
   > 
   > [phases]
   > publish=False
   > 
   > [alias]
   > tglog = log -G --template "{rev}: '{desc}' {branches}\n"
   > EOF
 
 
   $ hg init a
   $ cd a
   $ hg unbundle "$TESTDIR/bundles/rebase.hg"
   adding changesets
   adding manifests
   adding file changes
   added 8 changesets with 7 changes to 7 files (+2 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg up tip
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd ..
 
 
 Rebasing
 D onto H - simple rebase:
 (this also tests that editor is invoked if '--edit' is specified, and that we
 can abort or warn for colliding untracked files)
 
   $ hg clone -q -u . a a1
   $ cd a1
 
   $ hg tglog
   @  7: 'H'
   |
   | o  6: 'G'
   |/|
   o |  5: 'F'
   | |
   | o  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
 
   $ hg status --rev "3^1" --rev 3
   A D
   $ echo collide > D
   $ HGEDITOR=cat hg rebase -s 3 -d 7 --edit --config merge.checkunknown=warn
   rebasing 3:32af7686d403 "D"
   D: replacing untracked file
   D
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: Nicolas Dumazet <[e-mail]>
   HG: branch 'default'
   HG: added D
   saved backup bundle to $TESTTMP/a1/.hg/strip-backup/32af7686d403-6f7dface-backup.hg (glob)
   $ cat D.orig
   collide
   $ rm D.orig
 
   $ hg tglog
   o  7: 'D'
   |
   @  6: 'H'
   |
   | o  5: 'G'
   |/|
   o |  4: 'F'
   | |
   | o  3: 'E'
   |/
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 D onto F - intermediate point:
 (this also tests that editor is not invoked if '--edit' is not specified, and
 that we can ignore for colliding untracked files)
 
   $ hg clone -q -u . a a2
   $ cd a2
   $ echo collide > D
 
   $ HGEDITOR=cat hg rebase -s 3 -d 5 --config merge.checkunknown=ignore
   rebasing 3:32af7686d403 "D"
   saved backup bundle to $TESTTMP/a2/.hg/strip-backup/32af7686d403-6f7dface-backup.hg (glob)
   $ cat D.orig
   collide
   $ rm D.orig
 
   $ hg tglog
   o  7: 'D'
   |
   | @  6: 'H'
   |/
   | o  5: 'G'
   |/|
   o |  4: 'F'
   | |
   | o  3: 'E'
   |/
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 E onto H - skip of G:
 (this also tests that we can overwrite untracked files and don't create backups
 if they have the same contents)
 
   $ hg clone -q -u . a a3
   $ cd a3
   $ hg cat -r 4 E | tee E
   E
 
   $ hg rebase -s 4 -d 7
   rebasing 4:9520eea781bc "E"
   rebasing 6:eea13746799a "G"
   note: rebase of 6:eea13746799a created no changes to commit
   saved backup bundle to $TESTTMP/a3/.hg/strip-backup/9520eea781bc-fcd8edd4-backup.hg (glob)
   $ f E.orig
   E.orig: file not found
 
   $ hg tglog
   o  6: 'E'
   |
   @  5: 'H'
   |
   o  4: 'F'
   |
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 F onto E - rebase of a branching point (skip G):
 
   $ hg clone -q -u . a a4
   $ cd a4
 
   $ hg rebase -s 5 -d 4
   rebasing 5:24b6387c8c8c "F"
   rebasing 6:eea13746799a "G"
   note: rebase of 6:eea13746799a created no changes to commit
   rebasing 7:02de42196ebe "H" (tip)
   saved backup bundle to $TESTTMP/a4/.hg/strip-backup/24b6387c8c8c-c3fe765d-backup.hg (glob)
 
   $ hg tglog
   @  6: 'H'
   |
   o  5: 'F'
   |
   o  4: 'E'
   |
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 G onto H - merged revision having a parent in ancestors of target:
 
   $ hg clone -q -u . a a5
   $ cd a5
 
   $ hg rebase -s 6 -d 7
   rebasing 6:eea13746799a "G"
   saved backup bundle to $TESTTMP/a5/.hg/strip-backup/eea13746799a-883828ed-backup.hg (glob)
 
   $ hg tglog
   o    7: 'G'
   |\
   | @  6: 'H'
   | |
   | o  5: 'F'
   | |
   o |  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 F onto B - G maintains E as parent:
 
   $ hg clone -q -u . a a6
   $ cd a6
 
   $ hg rebase -s 5 -d 1
   rebasing 5:24b6387c8c8c "F"
   rebasing 6:eea13746799a "G"
   rebasing 7:02de42196ebe "H" (tip)
   saved backup bundle to $TESTTMP/a6/.hg/strip-backup/24b6387c8c8c-c3fe765d-backup.hg (glob)
 
   $ hg tglog
   @  7: 'H'
   |
   | o  6: 'G'
   |/|
   o |  5: 'F'
   | |
   | o  4: 'E'
   | |
   | | o  3: 'D'
   | | |
   +---o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 These will fail (using --source):
 
 G onto F - rebase onto an ancestor:
 
   $ hg clone -q -u . a a7
   $ cd a7
 
   $ hg rebase -s 6 -d 5
   nothing to rebase
   [1]
 
 F onto G - rebase onto a descendant:
 
   $ hg rebase -s 5 -d 6
   abort: source is ancestor of destination
   [255]
 
 G onto B - merge revision with both parents not in ancestors of target:
 
   $ hg rebase -s 6 -d 1
   rebasing 6:eea13746799a "G"
   abort: cannot use revision 6 as base, result would have 3 parents
   [255]
 
 
 These will abort gracefully (using --base):
 
 G onto G - rebase onto same changeset:
 
   $ hg rebase -b 6 -d 6
   nothing to rebase - eea13746799a is both "base" and destination
   [1]
 
 G onto F - rebase onto an ancestor:
 
   $ hg rebase -b 6 -d 5
   nothing to rebase
   [1]
 
 F onto G - rebase onto a descendant:
 
   $ hg rebase -b 5 -d 6
   nothing to rebase - "base" 24b6387c8c8c is already an ancestor of destination eea13746799a
   [1]
 
 C onto A - rebase onto an ancestor:
 
   $ hg rebase -d 0 -s 2
   rebasing 2:5fddd98957c8 "C"
   rebasing 3:32af7686d403 "D"
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/5fddd98957c8-f9244fa1-backup.hg (glob)
   $ hg tglog
   o  7: 'D'
   |
   o  6: 'C'
   |
   | @  5: 'H'
   | |
   | | o  4: 'G'
   | |/|
   | o |  3: 'F'
   |/ /
   | o  2: 'E'
   |/
   | o  1: 'B'
   |/
   o  0: 'A'
   
 
 Check rebasing public changeset
 
   $ hg pull --config phases.publish=True -q -r 6 . # update phase of 6
   $ hg rebase -d 0 -b 6
   nothing to rebase
   [1]
   $ hg rebase -d 5 -b 6
   abort: can't rebase public changeset e1c4361dd923
   (see "hg help phases" for details)
   [255]
 
   $ hg rebase -d 5 -b 6 --keep
   rebasing 6:e1c4361dd923 "C"
   rebasing 7:c9659aac0000 "D" (tip)
 
 Check rebasing mutable changeset
 Source phase greater or equal to destination phase: new changeset get the phase of source:
   $ hg id -n
   5
   $ hg rebase -s9 -d0
   rebasing 9:2b23e52411f4 "D" (tip)
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/2b23e52411f4-f942decf-backup.hg (glob)
   $ hg id -n # check we updated back to parent
   5
   $ hg log --template "{phase}\n" -r 9
   draft
   $ hg rebase -s9 -d1
   rebasing 9:2cb10d0cfc6c "D" (tip)
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/2cb10d0cfc6c-ddb0f256-backup.hg (glob)
   $ hg log --template "{phase}\n" -r 9
   draft
   $ hg phase --force --secret 9
   $ hg rebase -s9 -d0
   rebasing 9:c5b12b67163a "D" (tip)
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/c5b12b67163a-4e372053-backup.hg (glob)
   $ hg log --template "{phase}\n" -r 9
   secret
   $ hg rebase -s9 -d1
   rebasing 9:2a0524f868ac "D" (tip)
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/2a0524f868ac-cefd8574-backup.hg (glob)
   $ hg log --template "{phase}\n" -r 9
   secret
 Source phase lower than destination phase: new changeset get the phase of destination:
   $ hg rebase -s8 -d9
   rebasing 8:6d4f22462821 "C"
   saved backup bundle to $TESTTMP/a7/.hg/strip-backup/6d4f22462821-3441f70b-backup.hg (glob)
   $ hg log --template "{phase}\n" -r 'rev(9)'
   secret
 
   $ cd ..
 
 Test for revset
 
 We need a bit different graph
 All destination are B
 
   $ hg init ah
   $ cd ah
   $ hg unbundle "$TESTDIR/bundles/rebase-revset.hg"
   adding changesets
   adding manifests
   adding file changes
   added 9 changesets with 9 changes to 9 files (+2 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg tglog
   o  8: 'I'
   |
   o  7: 'H'
   |
   o  6: 'G'
   |
   | o  5: 'F'
   | |
   | o  4: 'E'
   |/
   o  3: 'D'
   |
   o  2: 'C'
   |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 Simple case with keep:
 
 Source on have two descendant heads but ask for one
 
   $ hg clone -q -u . ah ah1
   $ cd ah1
   $ hg rebase -r '2::8' -d 1
   abort: can't remove original changesets with unrebased descendants
   (use --keep to keep original changesets)
   [255]
   $ hg rebase -r '2::8' -d 1 -k
   rebasing 2:c9e50f6cdc55 "C"
   rebasing 3:ffd453c31098 "D"
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   rebasing 8:479ddb54a924 "I" (tip)
   $ hg tglog
   o  13: 'I'
   |
   o  12: 'H'
   |
   o  11: 'G'
   |
   o  10: 'D'
   |
   o  9: 'C'
   |
   | o  8: 'I'
   | |
   | o  7: 'H'
   | |
   | o  6: 'G'
   | |
   | | o  5: 'F'
   | | |
   | | o  4: 'E'
   | |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
 
   $ cd ..
 
 Base on have one descendant heads we ask for but common ancestor have two
 
   $ hg clone -q -u . ah ah2
   $ cd ah2
   $ hg rebase -r '3::8' -d 1
   abort: can't remove original changesets with unrebased descendants
   (use --keep to keep original changesets)
   [255]
   $ hg rebase -r '3::8' -d 1 --keep
   rebasing 3:ffd453c31098 "D"
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   rebasing 8:479ddb54a924 "I" (tip)
   $ hg tglog
   o  12: 'I'
   |
   o  11: 'H'
   |
   o  10: 'G'
   |
   o  9: 'D'
   |
   | o  8: 'I'
   | |
   | o  7: 'H'
   | |
   | o  6: 'G'
   | |
   | | o  5: 'F'
   | | |
   | | o  4: 'E'
   | |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
 
   $ cd ..
 
 rebase subset
 
   $ hg clone -q -u . ah ah3
   $ cd ah3
   $ hg rebase -r '3::7' -d 1
   abort: can't remove original changesets with unrebased descendants
   (use --keep to keep original changesets)
   [255]
   $ hg rebase -r '3::7' -d 1 --keep
   rebasing 3:ffd453c31098 "D"
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   $ hg tglog
   o  11: 'H'
   |
   o  10: 'G'
   |
   o  9: 'D'
   |
   | o  8: 'I'
   | |
   | o  7: 'H'
   | |
   | o  6: 'G'
   | |
   | | o  5: 'F'
   | | |
   | | o  4: 'E'
   | |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
 
   $ cd ..
 
 rebase subset with multiple head
 
   $ hg clone -q -u . ah ah4
   $ cd ah4
   $ hg rebase -r '3::(7+5)' -d 1
   abort: can't remove original changesets with unrebased descendants
   (use --keep to keep original changesets)
   [255]
   $ hg rebase -r '3::(7+5)' -d 1 --keep
   rebasing 3:ffd453c31098 "D"
   rebasing 4:c01897464e7f "E"
   rebasing 5:41bfcc75ed73 "F"
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   $ hg tglog
   o  13: 'H'
   |
   o  12: 'G'
   |
   | o  11: 'F'
   | |
   | o  10: 'E'
   |/
   o  9: 'D'
   |
   | o  8: 'I'
   | |
   | o  7: 'H'
   | |
   | o  6: 'G'
   | |
   | | o  5: 'F'
   | | |
   | | o  4: 'E'
   | |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
 
   $ cd ..
 
 More advanced tests
 
 rebase on ancestor with revset
 
   $ hg clone -q -u . ah ah5
   $ cd ah5
   $ hg rebase -r '6::' -d 2
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   rebasing 8:479ddb54a924 "I" (tip)
   saved backup bundle to $TESTTMP/ah5/.hg/strip-backup/3d8a618087a7-b4f73f31-backup.hg (glob)
   $ hg tglog
   o  8: 'I'
   |
   o  7: 'H'
   |
   o  6: 'G'
   |
   | o  5: 'F'
   | |
   | o  4: 'E'
   | |
   | o  3: 'D'
   |/
   o  2: 'C'
   |
   | o  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 
 rebase with multiple root.
 We rebase E and G on B
 We would expect heads are I, F if it was supported
 
   $ hg clone -q -u . ah ah6
   $ cd ah6
   $ hg rebase -r '(4+6)::' -d 1
   rebasing 4:c01897464e7f "E"
   rebasing 5:41bfcc75ed73 "F"
   rebasing 6:3d8a618087a7 "G"
   rebasing 7:72434a4e60b0 "H"
   rebasing 8:479ddb54a924 "I" (tip)
   saved backup bundle to $TESTTMP/ah6/.hg/strip-backup/3d8a618087a7-aae93a24-backup.hg (glob)
   $ hg tglog
   o  8: 'I'
   |
   o  7: 'H'
   |
   o  6: 'G'
   |
   | o  5: 'F'
   | |
   | o  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   o |  1: 'B'
   |/
   o  0: 'A'
   
   $ cd ..
 
 More complex rebase with multiple roots
 each root have a different common ancestor with the destination and this is a detach
 
 (setup)
 
   $ hg clone -q -u . a a8
   $ cd a8
   $ echo I > I
   $ hg add I
   $ hg commit -m I
   $ hg up 4
   1 files updated, 0 files merged, 3 files removed, 0 files unresolved
   $ echo I > J
   $ hg add J
   $ hg commit -m J
   created new head
   $ echo I > K
   $ hg add K
   $ hg commit -m K
   $ hg tglog
   @  10: 'K'
   |
   o  9: 'J'
   |
   | o  8: 'I'
   | |
   | o  7: 'H'
   | |
   +---o  6: 'G'
   | |/
   | o  5: 'F'
   | |
   o |  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
 (actual test)
 
   $ hg rebase --dest 'desc(G)' --rev 'desc(K) + desc(I)'
   rebasing 8:e7ec4e813ba6 "I"
   rebasing 10:23a4ace37988 "K" (tip)
   saved backup bundle to $TESTTMP/a8/.hg/strip-backup/23a4ace37988-b06984b3-backup.hg (glob)
   $ hg log --rev 'children(desc(G))'
   changeset:   9:adb617877056
   parent:      6:eea13746799a
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     I
   
   changeset:   10:882431a34a0e
   tag:         tip
   parent:      6:eea13746799a
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     K
   
   $ hg tglog
   @  10: 'K'
   |
   | o  9: 'I'
   |/
   | o  8: 'J'
   | |
   | | o  7: 'H'
   | | |
   o---+  6: 'G'
   |/ /
   | o  5: 'F'
   | |
   o |  4: 'E'
   |/
   | o  3: 'D'
   | |
   | o  2: 'C'
   | |
   | o  1: 'B'
   |/
   o  0: 'A'
   
 
 Test that rebase is not confused by $CWD disappearing during rebase (issue4121)
 
   $ cd ..
   $ hg init cwd-vanish
   $ cd cwd-vanish
   $ touch initial-file
   $ hg add initial-file
   $ hg commit -m 'initial commit'
   $ touch dest-file
   $ hg add dest-file
   $ hg commit -m 'dest commit'
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ touch other-file
   $ hg add other-file
   $ hg commit -m 'first source commit'
   created new head
   $ mkdir subdir
   $ cd subdir
   $ touch subfile
   $ hg add subfile
   $ hg commit -m 'second source with subdir'
   $ hg rebase -b . -d 1 --traceback
   rebasing 2:779a07b1b7a0 "first source commit"
   rebasing 3:a7d6f3a00bf3 "second source with subdir" (tip)
   saved backup bundle to $TESTTMP/cwd-vanish/.hg/strip-backup/779a07b1b7a0-853e0073-backup.hg (glob)
 
 Test experimental revset
 ========================
 
   $ cd ..
 
 Make the repo a bit more interresting
 
   $ hg up 1
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo aaa > aaa
   $ hg add aaa
   $ hg commit -m aaa
   created new head
   $ hg log -G
   @  changeset:   4:5f7bc9025ed2
   |  tag:         tip
   |  parent:      1:58d79cc1cf43
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     aaa
   |
   | o  changeset:   3:1910d5ff34ea
   | |  user:        test
   | |  date:        Thu Jan 01 00:00:00 1970 +0000
   | |  summary:     second source with subdir
   | |
   | o  changeset:   2:82901330b6ef
   |/   user:        test
   |    date:        Thu Jan 01 00:00:00 1970 +0000
   |    summary:     first source commit
   |
   o  changeset:   1:58d79cc1cf43
   |  user:        test
   |  date:        Thu Jan 01 00:00:00 1970 +0000
   |  summary:     dest commit
   |
   o  changeset:   0:e94b687f7da3
      user:        test
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     initial commit
   
 
 Testing from lower head
 
   $ hg up 3
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg log -r '_destrebase()'
   changeset:   4:5f7bc9025ed2
   tag:         tip
   parent:      1:58d79cc1cf43
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     aaa
   
 
 Testing from upper head
 
+  $ hg log -r '_destrebase(4)'
+  changeset:   3:1910d5ff34ea
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     second source with subdir
+  
   $ hg up 4
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg log -r '_destrebase()'
-  changeset:   4:5f7bc9025ed2
-  tag:         tip
-  parent:      1:58d79cc1cf43
+  changeset:   3:1910d5ff34ea
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
-  summary:     aaa
+  summary:     second source with subdir