view mercurial/stack.py @ 46279:14ce2eb6e8a4

shelve: open patch using new shelf class instead of open()

For some reason the existing code didn't use `shelvedfile().opener()`
so here we migrate to `shelf().open_patch()` from the `open()` system
call instead.

Differential Revision: https://phab.mercurial-scm.org/D9706

# 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


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 = b'.'

    revspec = b'only(%s) and not public() and not ::merge()'
    revisions = repo.revs(revspec, rev)
    revisions.sort()
    return revisions