context: add specialized way of getting copy source file only
I'm working on support for storing copy metadata in the changeset
instead of the filelog. I don't intend to include the file nodeid
there, but most callers don't need that anyway. This patch introduces
a method similar to ctx.renamed(), but the new method returns only the
source filename, not the nodeid. Subsequent patches will move callers
over to this new method.
Differential Revision: https://phab.mercurial-scm.org/D6008
# 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