setdiscovery: pass heads into _updatesample()
In preparation for eliminating the use of dagutil. Since
_takefullsample() operates on the inverted DAG, it is easier
to have the caller pass in the relevant set instead of teaching
_updatesample() about when to invert the DAG.
We keep the logic identical for now: future commits will remove
dagutil.
Differential Revision: https://phab.mercurial-scm.org/D4318
# stack.py - Mercurial functions for stack definition
#
# Copyright Matt Mackall <mpm@selenic.com> and other
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from . import (
revsetlang,
scmutil,
)
def getstack(repo, rev=None):
"""return a sorted smartrev of the stack containing either rev if it is
not None or the current working directory parent.
The stack will always contain all drafts changesets which are ancestors to
the revision and are not merges.
"""
if rev is None:
rev = '.'
revspec = 'reverse(only(%s) and not public() and not ::merge())'
revset = revsetlang.formatspec(revspec, rev)
revisions = scmutil.revrange(repo, [revset])
revisions.sort()
return revisions