# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1508518575 -7200
# Node ID 9c04bd9280560ac06e43b4033dc849e6fdae9ad4
# Parent  ef38b44c08cfde54d7fdac9dedf61704dade2087
compat: conditionally access config item

Version 4.2 and below do not have config items support. So the extensions helper
do not register anything.

diff -r ef38b44c08cf -r 9c04bd928056 hgext3rd/evolve/__init__.py
--- a/hgext3rd/evolve/__init__.py	Fri Oct 20 18:50:26 2017 +0200
+++ b/hgext3rd/evolve/__init__.py	Fri Oct 20 18:56:15 2017 +0200
@@ -382,7 +382,8 @@
 eh.configitem('experimental', 'prunestrip')
 
 # hack around because we need an actual default there
-configtable['experimental']['evolution.allnewcommands'].default = None
+if configtable:
+    configtable['experimental']['evolution.allnewcommands'].default = None
 
 # pre hg 4.0 compat