topic: list the number of head when --verbose is used
Displaying more information in the topic list is useful, we continue with the
number of heads on the topics, this will help highlight the problem to users. We
only display head if there is more than one.
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import (
error,
revset,
util,
)
from . import (
constants,
destination,
stack,
)
try:
mkmatcher = revset._stringmatcher
except AttributeError:
mkmatcher = util.stringmatcher
def topicset(repo, subset, x):
"""`topic([topic])`
Specified topic or all changes with any topic specified.
If `topic` starts with `re:` the remainder of the name is treated
as a regular expression.
TODO: make `topic(revset)` work the same as `branch(revset)`.
"""
args = revset.getargs(x, 0, 1, 'topic takes one or no arguments')
if args:
# match a specific topic
topic = revset.getstring(args[0], 'topic() argument must be a string')
if topic == '.':
topic = repo['.'].extra().get('topic', '')
_kind, _pattern, matcher = mkmatcher(topic)
else:
matcher = lambda t: bool(t)
drafts = subset.filter(lambda r: repo[r].mutable())
return drafts.filter(
lambda r: matcher(repo[r].extra().get(constants.extrakey, '')))
def ngtipset(repo, subset, x):
"""`ngtip([branch])`
The untopiced tip.
Name is horrible so that people change it.
"""
args = revset.getargs(x, 1, 1, 'topic takes one')
# match a specific topic
branch = revset.getstring(args[0], 'ngtip() argument must be a string')
if branch == '.':
branch = repo['.'].branch()
return subset & destination.ngtip(repo, branch)
def stackset(repo, subset, x):
"""`stack()`
All relevant changes in the current topic,
This is roughly equivalent to 'topic(.) - obsolete' with a sorting moving
unstable changeset after there future parent (as if evolve where already
run)."""
topic = repo.currenttopic
if not topic:
raise error.Abort(_('no active topic to list'))
# ordering hack, boo
return revset.baseset(stack.getstack(repo, topic)) & subset
def modsetup(ui):
revset.symbols.update({'topic': topicset})
revset.symbols.update({'ngtip': ngtipset})
revset.symbols.update({'stack': stackset})