view mercurial/stack.py @ 44497:3265c92f7d13

nodemap: deal with the "debugupdatecache" case using a "fake" transaction

We are going to need more and more methods of the transaction. So lets change
approach. The `hg debugupdatecache` case do not need a transaction, because has
the repositories locked, but is not adding any "store" data to it.

Differential Revision: https://phab.mercurial-scm.org/D8186

# 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