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comparison hgext3rd/topic/compat.py @ 2922:66357d4d03b2

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topic: centralize compatibility logic between hg versions into compat module This patch can delay loading obsutil and obsolete modules until they are actually used at "hg topics" or so, if demandimport of Mercurial is enabled.
author FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
date Sun, 10 Sep 2017 22:41:54 +0900
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2921:23c9600607e7 2922:66357d4d03b2
1 # Copyright 2017 FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
2 #
3 # This software may be used and distributed according to the terms of the
4 # GNU General Public License version 2 or any later version.
5 """
6 Compatibility module
7 """
8 from __future__ import absolute_import
9
10 from mercurial import obsolete
11
12 getmarkers = None
13 successorssets = None
14 try:
15 from mercurial import obsutil
16 getmarkers = getattr(obsutil, 'getmarkers', None)
17 successorssets = getattr(obsutil, 'successorssets', None)
18 except ImportError:
19 pass
20
21 if getmarkers is None:
22 getmarkers = obsolete.getmarkers
23 if successorssets is None:
24 successorssets = obsolete.successorssets