stack: add a very first version of stack display with 'hg topic --list'
This mark the first step toward a set of feature dedicated to displaying and
moving within the current stack of work. Everything is still super basic so
don't look too much at the feature.
The goals of this changeset are:
* having a flag to trigger the feature
* having a basic (imperfect selection mechanism)
from mercurial import revset
from mercurial import util
from . import constants, destination
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 modsetup():
revset.symbols.update({'topic': topicset})
revset.symbols.update({'ngtip': ngtipset})