packaging: fix setup.py and install as hgext3rd.topic
This changeset is doing two things (gasp):
- It fixes various errors in the setup.py
- It move the topic source and install into hgext3rd.topic.
This last part (code source move) use hgext3rd as namespace package to prevent
installation nightmare. This won't be officially supported until Mercurial 3.8,
but in the meantime, 3.7 user can enable it using the full package name:
[extensions]
hgext3rd.topic=
Thanks goes to Julien Cristau <julien.cristau@logilab.fr> for the initial
version of this.
from mercurial import error
from mercurial import util
from mercurial import destutil
from mercurial import extensions
from mercurial import bookmarks
from mercurial.i18n import _
def _destmergebranch(orig, repo, action='merge', sourceset=None, onheadcheck=True):
p1 = repo['.']
top = p1.topic()
if top:
heads = repo.revs('heads(topic(.)::topic(.))')
if p1.rev() not in heads:
raise error.Abort(_("not at topic head, update or explicit"))
elif 1 == len(heads):
# should look at all branch involved but... later
bhead = ngtip(repo, p1.branch(), all=True)
if not bhead:
raise error.Abort(_("nothing to merge"))
elif 1 == len(bhead):
return bhead.first()
else:
raise error.Abort(_("branch '%s' has %d heads - "
"please merge with an explicit rev")
% (p1.branch(), len(bhead)),
hint=_("run 'hg heads .' to see heads"))
elif 2 == len(heads):
heads = [r for r in heads if r != p1.rev()]
# XXX: bla bla bla bla bla
if 1 < len(heads):
raise error.Abort(_('working directory not at a head revision'),
hint=_("use 'hg update' or merge with an "
"explicit revision"))
return heads[0]
elif 2 < len(heads):
raise error.Abort(_("topic '%s' has %d heads - "
"please merge with an explicit rev")
% (top, len(heads)))
else:
assert False # that's impossible
if orig.func_default: # version above hg-3.7
return orig(repo, action, sourceset, onheadcheck)
else:
return orig(repo)
def _destupdatetopic(repo, clean, check):
"""decide on an update destination from current topic"""
movemark = node = None
topic = repo.currenttopic
revs = repo.revs('.::topic("%s")' % topic)
if not revs:
return None, None, None
node = revs.last()
if bookmarks.isactivewdirparent(repo):
movemark = repo['.'].node()
return node, movemark, None
def setupdest():
if util.safehasattr(destutil, '_destmergebranch'):
extensions.wrapfunction(destutil, '_destmergebranch', _destmergebranch)
rebase = extensions.find('rebase')
if (util.safehasattr(rebase, '_destrebase')
# logic not shared with merge yet < hg-3.8
and not util.safehasattr(rebase, '_definesets')):
extensions.wrapfunction(rebase, '_destrebase', _destmergebranch)
if util.safehasattr(destutil, 'destupdatesteps'):
bridx = destutil.destupdatesteps.index('branch')
destutil.destupdatesteps.insert(bridx, 'topic')
destutil.destupdatestepmap['topic'] = _destupdatetopic
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
subquery = '''heads(
parents(
ancestor(
(head() and branch(%s)
or (topic() and branch(%s)))))
::(head() and branch(%s))
- topic())'''
if not all:
subquery = 'max(%s)' % subquery
return repo.revs(subquery, branch, branch, branch)