Mercurial > evolve

diff 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
parents
children 7a1a4d1f0958
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext3rd/topic/compat.py	Sun Sep 10 22:41:54 2017 +0900
@@ -0,0 +1,24 @@
+# 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