view mercurial/stack.py @ 47348:a4de570e61fa

dirstate-v2: Allow tree nodes without an entry to store a timestamp

Timestamps are stored on 96 bits:

* 64 bits for the signed number of seconds since the Unix epoch
* 32 bits for the nanoseconds in the `0 <= ns < 1_000_000_000` range

For now timestamps are not used or set yet.

Differential Revision: https://phab.mercurial-scm.org/D10825

# stack.py - Mercurial functions for stack definition
#
#  Copyright Olivia 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