evolve: introduce function to create a obsmarker relation even for public cset
To create obsmarkers we use obsolete.createmarkers() function, but because of
security reasons this function refuses to create obsmarkers for public cset.
And we need to create obsmarkers for a public cset while solving public content
divergence. So introducing this function which create a obsmarker relation even
for immutable cset.
Currently this function create obsmarker for a single relation, in contrast of
obsolete.createmarkers() which create markers for multiple relations.
Upcoming pathces will be using this function.
# Copyright 2017 FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""
Compatibility module
"""
from __future__ import absolute_import
from mercurial import (
obsolete,
)
getmarkers = None
successorssets = None
try:
from mercurial import obsutil
getmarkers = getattr(obsutil, 'getmarkers', None)
successorssets = getattr(obsutil, 'successorssets', None)
except ImportError:
pass
if getmarkers is None:
getmarkers = obsolete.getmarkers
if successorssets is None:
successorssets = obsolete.successorssets