topic-revset: get the list of revset through the official localrepo API
This is simpler and faster. In addition we tighter the logic to be used in case
of empty topic. We do not need to fall back to revision search.
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import (
bookmarks,
destutil,
error,
extensions,
)
from . import topicmap
from .evolvebits import builddependencies
def _destmergebranch(orig, repo, action='merge', sourceset=None,
onheadcheck=True, destspace=None):
# XXX: take destspace into account
if sourceset is None:
p1 = repo['.']
else:
# XXX: using only the max here is flacky. That code should eventually
# be updated to take care of the whole sourceset.
p1 = repo[max(sourceset)]
top = p1.topic()
if top:
revs = repo.revs('topic(%s) - obsolete()', top)
deps, rdeps = builddependencies(repo, revs)
heads = [r for r in revs if not rdeps[r]]
if onheadcheck and p1.rev() not in heads:
raise error.Abort(_("not at topic head, update or explicit"))
# prune heads above the source
otherheads = set(heads)
pool = set([p1.rev()])
while pool:
current = pool.pop()
otherheads.discard(current)
pool.update(rdeps[current])
if not otherheads:
# nothing to do at the topic level
bhead = ngtip(repo, p1.branch(), all=True)
if not bhead:
raise error.NoMergeDestAbort(_("nothing to merge"))
elif 1 == len(bhead):
return bhead[0]
else:
msg = _("branch '%s' has %d heads "
"- please merge with an explicit rev")
hint = _("run 'hg heads .' to see heads")
raise error.ManyMergeDestAbort(msg % (p1.branch(), len(bhead)),
hint=hint)
elif len(otherheads) == 1:
return otherheads.pop()
else:
msg = _("topic '%s' has %d heads "
"- please merge with an explicit rev") % (top, len(heads))
raise error.ManyMergeDestAbort(msg)
return orig(repo, action, sourceset, onheadcheck, destspace=destspace)
def _destupdatetopic(repo, clean, check=None):
"""decide on an update destination from current topic"""
movemark = node = None
topic = repo.currenttopic
if topic:
revs = repo.revs('.::topic(%s)', topic)
else:
revs = []
if not revs:
return None, None, None
node = revs.last()
if bookmarks.isactivewdirparent(repo):
movemark = repo['.'].node()
return node, movemark, None
def desthistedit(orig, ui, repo):
if not (ui.config('histedit', 'defaultrev', None) is None
and repo.currenttopic):
return orig(ui, repo)
revs = repo.revs('::. and stack()')
if revs:
return revs.min()
return None
def ngtip(repo, branch, all=False):
"""tip new generation"""
## search for untopiced heads of branch
# could be heads((::branch(x) - topic()))
# but that is expensive
#
# we should write plain code instead
tmap = topicmap.gettopicrepo(repo).branchmap()
if branch not in tmap:
return []
elif all:
return tmap.branchheads(branch)
else:
return [tmap.branchtip(branch)]
def modsetup(ui):
"""run a uisetup time to install all destinations wrapping"""
extensions.wrapfunction(destutil, '_destmergebranch', _destmergebranch)
bridx = destutil.destupdatesteps.index('branch')
destutil.destupdatesteps.insert(bridx, 'topic')
destutil.destupdatestepmap['topic'] = _destupdatetopic
extensions.wrapfunction(destutil, 'desthistedit', desthistedit)