def applychanges(ui, repo, ctx, opts):
"""Merge changeset from ctx (only) in the current working directory"""
wcpar = repo.dirstate.parents()[0]
if ctx.p1().node() == wcpar:
# edition ar "in place" we do not need to make any merge,
# just applies changes on parent for edition
cmdutil.revert(ui, repo, ctx, (wcpar, node.nullid), all=True)
stats = None
else:
try:
# ui.forcemerge is an internal variable, do not document
repo.ui.setconfig("ui", "forcemerge", opts.get("tool", ""))
stats = mergemod.update(repo, ctx.node(), True, True, False, ctx.p1().node())
finally:
repo.ui.setconfig("ui", "forcemerge", "")
repo.setparents(wcpar, node.nullid)
repo.dirstate.write()
# fix up dirstate for copies and renames
cmdutil.duplicatecopies(repo, ctx.rev(), ctx.p1().rev())
return stats
def applychanges(ui, repo, ctx, opts):
"""Merge changeset from ctx (only) in the current working directory"""
wcpar = repo.dirstate.parents()[0]
if ctx.p1().node() == wcpar:
# edition ar "in place" we do not need to make any merge,
# just applies changes on parent for edition
cmdutil.revert(ui, repo, ctx, (wcpar, node.nullid), all=True)
stats = None
else:
try:
# ui.forcemerge is an internal variable, do not document
repo.ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
stats = mergemod.update(repo, ctx.node(), True, True, False,
ctx.p1().node())
finally:
repo.ui.setconfig('ui', 'forcemerge', '')
repo.setparents(wcpar, node.nullid)
repo.dirstate.write()
# fix up dirstate for copies and renames
cmdutil.duplicatecopies(repo, ctx.rev(), ctx.p1().rev())
return stats
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.
You should not rebase changesets that have already been shared
with others. Doing so will force everybody else to perform the
same rebase or they will end up with duplicated changesets after
pulling in your rebased changesets.
If you don't specify a destination changeset (``-d/--dest``),
rebase uses the tipmost head of the current named branch as the
destination. (The destination changeset is not modified by
rebasing, but new changesets are added as its descendants.)
You can specify which changesets to rebase in two ways: as a
"source" changeset or as a "base" changeset. Both are shorthand
for a topologically related set of changesets (the "source
branch"). If you specify source (``-s/--source``), rebase will
rebase that changeset and all of its descendants onto dest. If you
specify base (``-b/--base``), rebase will select ancestors of base
back to but not including the common ancestor with dest. Thus,
``-b`` is less precise but more convenient than ``-s``: you can
specify any changeset in the source branch, and rebase will select
the whole branch. If you specify neither ``-s`` nor ``-b``, rebase
uses the parent of the working directory as the base.
By default, rebase recreates the changesets in the source branch
as descendants of dest and then destroys the originals. Use
``--keep`` to preserve the original source changesets. Some
changesets in the source branch (e.g. merges from the destination
branch) may be dropped if they no longer contribute any change.
One result of the rules for selecting the destination changeset
and source branch is that, unlike ``merge``, rebase will do
nothing if you are at the latest (tipmost) head of a named branch
with two heads. You need to explicitly specify source and/or
destination (or ``update`` to the other head, if it's the head of
the intended source branch).
If a rebase is interrupted to manually resolve a merge, it can be
continued with --continue/-c or aborted with --abort/-a.
Returns 0 on success, 1 if nothing to rebase.
"""
originalwd = target = None
external = nullrev
state = {}
skipped = set()
targetancestors = set()
editor = None
if opts.get('edit'):
editor = cmdutil.commitforceeditor
lock = wlock = None
try:
lock = repo.lock()
wlock = repo.wlock()
# 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)
extrafn = opts.get('extrafn') # internal, used by e.g. hgsubversion
keepf = opts.get('keep', False)
keepbranchesf = opts.get('keepbranches', False)
detachf = opts.get('detach', False)
# keepopen is not meant for use on the command line, but by
# other extensions
keepopen = opts.get('keepopen', False)
if collapsemsg and not collapsef:
raise util.Abort(_('message can only be specified with collapse'))
if contf or abortf:
if contf and abortf:
raise util.Abort(_('cannot use both abort and continue'))
if collapsef:
raise util.Abort(
_('cannot use collapse with continue or abort'))
if detachf:
raise util.Abort(_('cannot use detach with continue or abort'))
if srcf or basef or destf:
raise util.Abort(
_('abort and continue do not allow specifying revisions'))
if opts.get('tool', False):
ui.warn(_('tool option will be ignored\n'))
(originalwd, target, state, skipped, collapsef, keepf,
keepbranchesf, external) = restorestatus(repo)
if abortf:
return abort(repo, originalwd, target, state)
else:
if srcf and basef:
raise util.Abort(
_('cannot specify both a '
'source and a base'))
if revf and basef:
raise util.Abort(
_('cannot specify both a '
'revision and a base'))
if revf and srcf:
raise util.Abort(
_('cannot specify both a '
'revision and a source'))
if detachf:
if not srcf:
raise util.Abort(
_('detach requires a revision to be specified'))
if basef:
raise util.Abort(_('cannot specify a base with detach'))
cmdutil.bailifchanged(repo)
if not destf:
# Destination defaults to the latest revision in the
# current branch
branch = repo[None].branch()
dest = repo[branch]
else:
dest = repo[destf]
if revf:
revgen = repo.set('%lr', revf)
elif srcf:
revgen = repo.set('(%r)::', srcf)
else:
base = basef or '.'
revgen = repo.set('(children(ancestor(%r, %d)) and ::(%r))::',
base, dest, base)
rebaseset = [c.rev() for c in revgen]
if not rebaseset:
repo.ui.debug('base is ancestor of destination')
result = None
elif not keepf and list(
repo.set('first(children(%ld) - %ld)', rebaseset,
rebaseset)):
raise util.Abort(
_("can't remove original changesets with"
" unrebased descendants"),
hint=_('use --keep to keep original changesets'))
else:
result = buildstate(repo, dest, rebaseset, detachf)
if not result:
# Empty state built, nothing to rebase
ui.status(_('nothing to rebase\n'))
return 1
else:
originalwd, target, state = result
if collapsef:
targetancestors = set(repo.changelog.ancestors(target))
external = checkexternal(repo, state, targetancestors)
if keepbranchesf:
assert not extrafn, 'cannot use both keepbranches and extrafn'
def extrafn(ctx, extra):
extra['branch'] = ctx.branch()
if collapsef:
branches = set()
for rev in state:
branches.add(repo[rev].branch())
if len(branches) > 1:
raise util.Abort(
_('cannot collapse multiple named '
'branches'))
# Rebase
if not targetancestors:
targetancestors = set(repo.changelog.ancestors(target))
targetancestors.add(target)
# Keep track of the current bookmarks in order to reset them later
currentbookmarks = repo._bookmarks.copy()
sortedstate = sorted(state)
total = len(sortedstate)
pos = 0
for rev in sortedstate:
pos += 1
if state[rev] == -1:
ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, repo[rev])),
_('changesets'), total)
storestatus(repo, originalwd, target, state, collapsef, keepf,
keepbranchesf, external)
p1, p2 = defineparents(repo, rev, target, state,
targetancestors)
if len(repo.parents()) == 2:
repo.ui.debug('resuming interrupted rebase\n')
else:
try:
ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
stats = rebasenode(repo, rev, p1, state)
if stats and stats[3] > 0:
raise util.Abort(
_('unresolved conflicts (see hg '
'resolve, then hg rebase --continue)'))
finally:
ui.setconfig('ui', 'forcemerge', '')
cmdutil.duplicatecopies(repo, rev, target, p2)
if not collapsef:
newrev = concludenode(repo,
rev,
p1,
p2,
extrafn=extrafn,
editor=editor)
else:
# Skip commit if we are collapsing
repo.dirstate.setparents(repo[p1].node())
newrev = None
# Update the state
if newrev is not None:
state[rev] = repo[newrev].rev()
else:
if not collapsef:
ui.note(_('no changes, revision %d skipped\n') % rev)
ui.debug('next revision set to %s\n' % p1)
skipped.add(rev)
state[rev] = p1
ui.progress(_('rebasing'), None)
ui.note(_('rebase merging completed\n'))
if collapsef and not keepopen:
p1, p2 = defineparents(repo, min(state), target, state,
targetancestors)
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()
commitmsg = ui.edit(commitmsg, repo.ui.username())
newrev = concludenode(repo,
rev,
p1,
external,
commitmsg=commitmsg,
extrafn=extrafn,
editor=editor)
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()
if not keepf:
# Remove no more useful revisions
rebased = [rev for rev in state if state[rev] != nullmerge]
if rebased:
if set(repo.changelog.descendants(min(rebased))) - set(state):
ui.warn(
_("warning: new changesets detected "
"on source branch, not stripping\n"))
else:
# backup the old csets by default
repair.strip(ui, repo, repo[min(rebased)].node(), "all")
if currentbookmarks:
updatebookmarks(repo, nstate, currentbookmarks, **opts)
clearstatus(repo)
ui.note(_("rebase completed\n"))
if os.path.exists(repo.sjoin('undo')):
util.unlinkpath(repo.sjoin('undo'))
if skipped:
ui.note(_("%d revisions have been skipped\n") % len(skipped))
finally:
release(lock, wlock)
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.
You should not rebase changesets that have already been shared
with others. Doing so will force everybody else to perform the
same rebase or they will end up with duplicated changesets after
pulling in your rebased changesets.
In its default configuration, Mercurial will prevent you from
rebasing published changes. See :hg:`help phases` for details.
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.)
You can specify which changesets to rebase in two ways: as a
"source" changeset or as a "base" changeset. Both are shorthand
for a topologically related set of changesets (the "source
branch"). If you specify source (``-s/--source``), rebase will
rebase that changeset and all of its descendants onto dest. If you
specify base (``-b/--base``), rebase will select ancestors of base
back to but not including the common ancestor with dest. Thus,
``-b`` is less precise but more convenient than ``-s``: you can
specify any changeset in the source branch, and rebase will select
the whole branch. If you specify neither ``-s`` nor ``-b``, rebase
uses the parent of the working directory as the base.
For advanced usage, a third way is available through the ``--rev``
option. It allows you to specify an arbitrary set of changesets to
rebase. Descendants of revs you specify with this option are not
automatically included in the rebase.
By default, rebase recreates the changesets in the source branch
as descendants of dest and then destroys the originals. Use
``--keep`` to preserve the original source changesets. Some
changesets in the source branch (e.g. merges from the destination
branch) may be dropped if they no longer contribute any change.
One result of the rules for selecting the destination changeset
and source branch is that, unlike ``merge``, rebase will do
nothing if you are at the branch tip of a named branch
with two heads. You need to explicitly specify source and/or
destination (or ``update`` to the other head, if it's the head of
the intended source branch).
If a rebase is interrupted to manually resolve a merge, it can be
continued with --continue/-c or aborted with --abort/-a.
Returns 0 on success, 1 if nothing to rebase or there are
unresolved conflicts.
"""
originalwd = target = None
activebookmark = None
external = nullrev
state = {}
skipped = set()
targetancestors = set()
editor = None
if opts.get('edit'):
editor = cmdutil.commitforceeditor
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)
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 collapsemsg and not collapsef:
raise util.Abort(
_('message can only be specified with collapse'))
if contf or abortf:
if contf and abortf:
raise util.Abort(_('cannot use both abort and continue'))
if collapsef:
raise util.Abort(
_('cannot use collapse with continue or abort'))
if srcf or basef or destf:
raise util.Abort(
_('abort and continue do not allow specifying revisions'))
if opts.get('tool', False):
ui.warn(_('tool option will be ignored\n'))
try:
(originalwd, target, state, skipped, collapsef, keepf,
keepbranchesf, external, activebookmark) = restorestatus(repo)
except error.RepoLookupError:
if abortf:
clearstatus(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 borken state')
raise util.Abort(msg, hint=hint)
if abortf:
return abort(repo, originalwd, target, state)
else:
if srcf and basef:
raise util.Abort(_('cannot specify both a '
'source and a base'))
if revf and basef:
raise util.Abort(_('cannot specify both a '
'revision and a base'))
if revf and srcf:
raise util.Abort(_('cannot specify both a '
'revision and a source'))
cmdutil.checkunfinished(repo)
cmdutil.bailifchanged(repo)
if not destf:
# Destination defaults to the latest revision in the
# current branch
branch = repo[None].branch()
dest = repo[branch]
else:
dest = scmutil.revsingle(repo, destf)
if revf:
rebaseset = scmutil.revrange(repo, revf)
elif srcf:
src = scmutil.revrange(repo, [srcf])
rebaseset = repo.revs('(%ld)::', src)
else:
base = scmutil.revrange(repo, [basef or '.'])
rebaseset = repo.revs(
'(children(ancestor(%ld, %d)) and ::(%ld))::',
base, dest, base)
if rebaseset:
root = min(rebaseset)
else:
root = None
if not rebaseset:
repo.ui.debug('base is ancestor of destination\n')
result = None
elif (not (keepf or obsolete._enabled)
and repo.revs('first(children(%ld) - %ld)',
rebaseset, rebaseset)):
raise util.Abort(
_("can't remove original changesets with"
" unrebased descendants"),
hint=_('use --keep to keep original changesets'))
else:
result = buildstate(repo, dest, rebaseset, collapsef)
if not result:
# Empty state built, nothing to rebase
ui.status(_('nothing to rebase\n'))
return 1
elif not keepf and not repo[root].mutable():
raise util.Abort(_("can't rebase immutable changeset %s")
% repo[root],
hint=_('see hg help phases for details'))
else:
originalwd, target, state = result
if collapsef:
targetancestors = repo.changelog.ancestors([target],
inclusive=True)
external = externalparent(repo, state, targetancestors)
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 util.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._bookmarkcurrent
if activebookmark:
bookmarks.unsetcurrent(repo)
extrafn = _makeextrafn(extrafns)
sortedstate = sorted(state)
total = len(sortedstate)
pos = 0
for rev in sortedstate:
pos += 1
if state[rev] == -1:
ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, repo[rev])),
_('changesets'), total)
p1, p2 = defineparents(repo, rev, target, state,
targetancestors)
storestatus(repo, originalwd, target, state, collapsef, keepf,
keepbranchesf, external, activebookmark)
if len(repo.parents()) == 2:
repo.ui.debug('resuming interrupted rebase\n')
else:
try:
ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
stats = rebasenode(repo, rev, p1, state, collapsef)
if stats and stats[3] > 0:
raise error.InterventionRequired(
_('unresolved conflicts (see hg '
'resolve, then hg rebase --continue)'))
finally:
ui.setconfig('ui', 'forcemerge', '')
cmdutil.duplicatecopies(repo, rev, target)
if not collapsef:
newrev = concludenode(repo, rev, p1, p2, extrafn=extrafn,
editor=editor)
else:
# Skip commit if we are collapsing
repo.setparents(repo[p1].node())
newrev = None
# Update the state
if newrev is not None:
state[rev] = repo[newrev].rev()
else:
if not collapsef:
ui.note(_('no changes, revision %d skipped\n') % rev)
ui.debug('next revision set to %s\n' % p1)
skipped.add(rev)
state[rev] = p1
ui.progress(_('rebasing'), None)
ui.note(_('rebase merging completed\n'))
if collapsef and not keepopen:
p1, p2 = defineparents(repo, min(state), target,
state, targetancestors)
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()
commitmsg = ui.edit(commitmsg, repo.ui.username())
newrev = concludenode(repo, rev, p1, external, commitmsg=commitmsg,
extrafn=extrafn, editor=editor)
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 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 = newrev
clearrebased(ui, repo, state, skipped, collapsedas)
if currentbookmarks:
updatebookmarks(repo, targetnode, nstate, currentbookmarks)
clearstatus(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.setcurrent(repo, activebookmark)
finally:
release(lock, wlock)
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.
You should not rebase changesets that have already been shared
with others. Doing so will force everybody else to perform the
same rebase or they will end up with duplicated changesets after
pulling in your rebased changesets.
If you don't specify a destination changeset (``-d/--dest``),
rebase uses the tipmost head of the current named branch as the
destination. (The destination changeset is not modified by
rebasing, but new changesets are added as its descendants.)
You can specify which changesets to rebase in two ways: as a
"source" changeset or as a "base" changeset. Both are shorthand
for a topologically related set of changesets (the "source
branch"). If you specify source (``-s/--source``), rebase will
rebase that changeset and all of its descendants onto dest. If you
specify base (``-b/--base``), rebase will select ancestors of base
back to but not including the common ancestor with dest. Thus,
``-b`` is less precise but more convenient than ``-s``: you can
specify any changeset in the source branch, and rebase will select
the whole branch. If you specify neither ``-s`` nor ``-b``, rebase
uses the parent of the working directory as the base.
By default, rebase recreates the changesets in the source branch
as descendants of dest and then destroys the originals. Use
``--keep`` to preserve the original source changesets. Some
changesets in the source branch (e.g. merges from the destination
branch) may be dropped if they no longer contribute any change.
One result of the rules for selecting the destination changeset
and source branch is that, unlike ``merge``, rebase will do
nothing if you are at the latest (tipmost) head of a named branch
with two heads. You need to explicitly specify source and/or
destination (or ``update`` to the other head, if it's the head of
the intended source branch).
If a rebase is interrupted to manually resolve a merge, it can be
continued with --continue/-c or aborted with --abort/-a.
Returns 0 on success, 1 if nothing to rebase.
"""
originalwd = target = None
external = nullrev
state = {}
skipped = set()
targetancestors = set()
editor = None
if opts.get('edit'):
editor = cmdutil.commitforceeditor
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)
extrafn = opts.get('extrafn') # internal, used by e.g. hgsubversion
keepf = opts.get('keep', False)
keepbranchesf = opts.get('keepbranches', False)
detachf = opts.get('detach', False)
# keepopen is not meant for use on the command line, but by
# other extensions
keepopen = opts.get('keepopen', False)
if collapsemsg and not collapsef:
raise util.Abort(
_('message can only be specified with collapse'))
if contf or abortf:
if contf and abortf:
raise util.Abort(_('cannot use both abort and continue'))
if collapsef:
raise util.Abort(
_('cannot use collapse with continue or abort'))
if detachf:
raise util.Abort(_('cannot use detach with continue or abort'))
if srcf or basef or destf:
raise util.Abort(
_('abort and continue do not allow specifying revisions'))
if opts.get('tool', False):
ui.warn(_('tool option will be ignored\n'))
(originalwd, target, state, skipped, collapsef, keepf,
keepbranchesf, external) = restorestatus(repo)
if abortf:
return abort(repo, originalwd, target, state)
else:
if srcf and basef:
raise util.Abort(_('cannot specify both a '
'source and a base'))
if revf and basef:
raise util.Abort(_('cannot specify both a '
'revision and a base'))
if revf and srcf:
raise util.Abort(_('cannot specify both a '
'revision and a source'))
if detachf:
if not (srcf or revf):
raise util.Abort(
_('detach requires a revision to be specified'))
if basef:
raise util.Abort(_('cannot specify a base with detach'))
cmdutil.bailifchanged(repo)
if not destf:
# Destination defaults to the latest revision in the
# current branch
branch = repo[None].branch()
dest = repo[branch]
else:
dest = repo[destf]
if revf:
rebaseset = repo.revs('%lr', revf)
elif srcf:
src = scmutil.revrange(repo, [srcf])
rebaseset = repo.revs('(%ld)::', src)
else:
base = scmutil.revrange(repo, [basef or '.'])
rebaseset = repo.revs(
'(children(ancestor(%ld, %d)) and ::(%ld))::',
base, dest, base)
if rebaseset:
root = min(rebaseset)
else:
root = None
if not rebaseset:
repo.ui.debug('base is ancestor of destination')
result = None
elif not keepf and list(repo.revs('first(children(%ld) - %ld)',
rebaseset, rebaseset)):
raise util.Abort(
_("can't remove original changesets with"
" unrebased descendants"),
hint=_('use --keep to keep original changesets'))
elif not keepf and not repo[root].mutable():
raise util.Abort(_("can't rebase immutable changeset %s")
% repo[root],
hint=_('see hg help phases for details'))
else:
result = buildstate(repo, dest, rebaseset, detachf)
if not result:
# Empty state built, nothing to rebase
ui.status(_('nothing to rebase\n'))
return 1
else:
originalwd, target, state = result
if collapsef:
targetancestors = set(repo.changelog.ancestors(target))
targetancestors.add(target)
external = checkexternal(repo, state, targetancestors)
if keepbranchesf:
assert not extrafn, 'cannot use both keepbranches and extrafn'
def extrafn(ctx, extra):
extra['branch'] = ctx.branch()
if collapsef:
branches = set()
for rev in state:
branches.add(repo[rev].branch())
if len(branches) > 1:
raise util.Abort(_('cannot collapse multiple named '
'branches'))
# Rebase
if not targetancestors:
targetancestors = set(repo.changelog.ancestors(target))
targetancestors.add(target)
# Keep track of the current bookmarks in order to reset them later
currentbookmarks = repo._bookmarks.copy()
activebookmark = repo._bookmarkcurrent
if activebookmark:
bookmarks.unsetcurrent(repo)
sortedstate = sorted(state)
total = len(sortedstate)
pos = 0
for rev in sortedstate:
pos += 1
if state[rev] == -1:
ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, repo[rev])),
_('changesets'), total)
storestatus(repo, originalwd, target, state, collapsef, keepf,
keepbranchesf, external)
p1, p2 = defineparents(repo, rev, target, state,
targetancestors)
if len(repo.parents()) == 2:
repo.ui.debug('resuming interrupted rebase\n')
else:
try:
ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
stats = rebasenode(repo, rev, p1, state)
if stats and stats[3] > 0:
raise util.Abort(_('unresolved conflicts (see hg '
'resolve, then hg rebase --continue)'))
finally:
ui.setconfig('ui', 'forcemerge', '')
cmdutil.duplicatecopies(repo, rev, target)
if not collapsef:
newrev = concludenode(repo, rev, p1, p2, extrafn=extrafn,
editor=editor)
else:
# Skip commit if we are collapsing
repo.setparents(repo[p1].node())
newrev = None
# Update the state
if newrev is not None:
state[rev] = repo[newrev].rev()
else:
if not collapsef:
ui.note(_('no changes, revision %d skipped\n') % rev)
ui.debug('next revision set to %s\n' % p1)
skipped.add(rev)
state[rev] = p1
ui.progress(_('rebasing'), None)
ui.note(_('rebase merging completed\n'))
if collapsef and not keepopen:
p1, p2 = defineparents(repo, min(state), target,
state, targetancestors)
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()
commitmsg = ui.edit(commitmsg, repo.ui.username())
newrev = concludenode(repo, rev, p1, external, commitmsg=commitmsg,
extrafn=extrafn, editor=editor)
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()
if not keepf:
# Remove no more useful revisions
rebased = [rev for rev in state if state[rev] != nullmerge]
if rebased:
if set(repo.changelog.descendants(min(rebased))) - set(state):
ui.warn(_("warning: new changesets detected "
"on source branch, not stripping\n"))
else:
# backup the old csets by default
repair.strip(ui, repo, repo[min(rebased)].node(), "all")
if currentbookmarks:
updatebookmarks(repo, nstate, currentbookmarks, **opts)
clearstatus(repo)
ui.note(_("rebase completed\n"))
if os.path.exists(repo.sjoin('undo')):
util.unlinkpath(repo.sjoin('undo'))
if skipped:
ui.note(_("%d revisions have been skipped\n") % len(skipped))
if (activebookmark and
repo['tip'].node() == repo._bookmarks[activebookmark]):
bookmarks.setcurrent(repo, activebookmark)
finally:
release(lock, wlock)
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.
You should not rebase changesets that have already been shared
with others. Doing so will force everybody else to perform the
same rebase or they will end up with duplicated changesets after
pulling in your rebased changesets.
In its default configuration, Mercurial will prevent you from
rebasing published changes. See :hg:`help phases` for details.
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.)
You can specify which changesets to rebase in two ways: as a
"source" changeset or as a "base" changeset. Both are shorthand
for a topologically related set of changesets (the "source
branch"). If you specify source (``-s/--source``), rebase will
rebase that changeset and all of its descendants onto dest. If you
specify base (``-b/--base``), rebase will select ancestors of base
back to but not including the common ancestor with dest. Thus,
``-b`` is less precise but more convenient than ``-s``: you can
specify any changeset in the source branch, and rebase will select
the whole branch. If you specify neither ``-s`` nor ``-b``, rebase
uses the parent of the working directory as the base.
For advanced usage, a third way is available through the ``--rev``
option. It allows you to specify an arbitrary set of changesets to
rebase. Descendants of revs you specify with this option are not
automatically included in the rebase.
By default, rebase recreates the changesets in the source branch
as descendants of dest and then destroys the originals. Use
``--keep`` to preserve the original source changesets. Some
changesets in the source branch (e.g. merges from the destination
branch) may be dropped if they no longer contribute any change.
One result of the rules for selecting the destination changeset
and source branch is that, unlike ``merge``, rebase will do
nothing if you are at the branch tip of a named branch
with two heads. You need to explicitly specify source and/or
destination (or ``update`` to the other head, if it's the head of
the intended source branch).
If a rebase is interrupted to manually resolve a merge, it can be
continued with --continue/-c or aborted with --abort/-a.
Returns 0 on success, 1 if nothing to rebase or there are
unresolved conflicts.
"""
originalwd = target = None
activebookmark = None
external = nullrev
state = {}
skipped = set()
targetancestors = set()
editor = None
if opts.get('edit'):
editor = cmdutil.commitforceeditor
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)
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 collapsemsg and not collapsef:
raise util.Abort(_('message can only be specified with collapse'))
if contf or abortf:
if contf and abortf:
raise util.Abort(_('cannot use both abort and continue'))
if collapsef:
raise util.Abort(
_('cannot use collapse with continue or abort'))
if srcf or basef or destf:
raise util.Abort(
_('abort and continue do not allow specifying revisions'))
if opts.get('tool', False):
ui.warn(_('tool option will be ignored\n'))
try:
(originalwd, target, state, skipped, collapsef, keepf,
keepbranchesf, external, activebookmark) = restorestatus(repo)
except error.RepoLookupError:
if abortf:
clearstatus(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 util.Abort(msg, hint=hint)
if abortf:
return abort(repo, originalwd, target, state)
else:
if srcf and basef:
raise util.Abort(
_('cannot specify both a '
'source and a base'))
if revf and basef:
raise util.Abort(
_('cannot specify both a '
'revision and a base'))
if revf and srcf:
raise util.Abort(
_('cannot specify both a '
'revision and a source'))
cmdutil.checkunfinished(repo)
cmdutil.bailifchanged(repo)
if not destf:
# Destination defaults to the latest revision in the
# current branch
branch = repo[None].branch()
dest = repo[branch]
else:
dest = scmutil.revsingle(repo, destf)
if revf:
rebaseset = scmutil.revrange(repo, revf)
if not rebaseset:
ui.status(
_('empty "rev" revision set - '
'nothing to rebase\n'))
return 1
elif srcf:
src = scmutil.revrange(repo, [srcf])
if not src:
ui.status(
_('empty "source" revision set - '
'nothing to rebase\n'))
return 1
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 1
rebaseset = repo.revs(
'(children(ancestor(%ld, %d)) and ::(%ld))::', base, dest,
base)
if not rebaseset:
if 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 1
if (not (keepf or obsolete._enabled) and repo.revs(
'first(children(%ld) - %ld)', rebaseset, rebaseset)):
raise util.Abort(
_("can't remove original changesets with"
" unrebased descendants"),
hint=_('use --keep to keep original changesets'))
result = buildstate(repo, dest, rebaseset, collapsef)
if not result:
# Empty state built, nothing to rebase
ui.status(_('nothing to rebase\n'))
return 1
root = min(rebaseset)
if not keepf and not repo[root].mutable():
raise util.Abort(_("can't rebase immutable 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 util.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._bookmarkcurrent
if activebookmark:
bookmarks.unsetcurrent(repo)
extrafn = _makeextrafn(extrafns)
sortedstate = sorted(state)
total = len(sortedstate)
pos = 0
for rev in sortedstate:
pos += 1
if state[rev] == -1:
ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, repo[rev])),
_('changesets'), total)
p1, p2 = defineparents(repo, rev, target, state,
targetancestors)
storestatus(repo, originalwd, target, state, collapsef, keepf,
keepbranchesf, external, activebookmark)
if len(repo.parents()) == 2:
repo.ui.debug('resuming interrupted rebase\n')
else:
try:
ui.setconfig('ui', 'forcemerge', opts.get('tool', ''),
'rebase')
stats = rebasenode(repo, rev, p1, state, collapsef)
if stats and stats[3] > 0:
raise error.InterventionRequired(
_('unresolved conflicts (see hg '
'resolve, then hg rebase --continue)'))
finally:
ui.setconfig('ui', 'forcemerge', '', 'rebase')
cmdutil.duplicatecopies(repo, rev, target)
if not collapsef:
newrev = concludenode(repo,
rev,
p1,
p2,
extrafn=extrafn,
editor=editor)
else:
# Skip commit if we are collapsing
repo.setparents(repo[p1].node())
newrev = None
# Update the state
if newrev is not None:
state[rev] = repo[newrev].rev()
else:
if not collapsef:
ui.note(_('no changes, revision %d skipped\n') % rev)
ui.debug('next revision set to %s\n' % p1)
skipped.add(rev)
state[rev] = p1
ui.progress(_('rebasing'), None)
ui.note(_('rebase merging completed\n'))
if collapsef and not keepopen:
p1, p2 = defineparents(repo, min(state), target, state,
targetancestors)
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()
editor = cmdutil.commitforceeditor
newrev = concludenode(repo,
rev,
p1,
external,
commitmsg=commitmsg,
extrafn=extrafn,
editor=editor)
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 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 = newrev
clearrebased(ui, repo, state, skipped, collapsedas)
if currentbookmarks:
updatebookmarks(repo, targetnode, nstate, currentbookmarks)
if activebookmark not in repo._bookmarks:
# active bookmark was divergent one and has been deleted
activebookmark = None
clearstatus(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.setcurrent(repo, activebookmark)
finally:
release(lock, wlock)