view mercurial/stack.py @ 41237:ad9ab2523149

narrow: reuse narrowspec.updateworkingcopy() when widening

The widening of the working copy we do after widening a repo is
practically the same as we do in a repo share after the store
narrowspec has been changed in a different share. Let's reuse the code
for that that we now have in the narrowspec module.

Differential Revision: https://phab.mercurial-scm.org/D5510

# stack.py - Mercurial functions for stack definition
#
#  Copyright Matt Mackall <[e-mail]> 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