# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1496140334 -7200
# Node ID b99b83728ea38254413bc259beb93cb3ed28e48a
# Parent  6da129b2b4400d7646fc8c3c3e873825dd862504
obsdiscovery: extract '_canobshashtree'

having this as a simple function will help use to generalise the obsdiscovery
algorithm we use.

diff -r 6da129b2b440 -r b99b83728ea3 hgext3rd/evolve/obsdiscovery.py
--- a/hgext3rd/evolve/obsdiscovery.py	Tue May 30 12:26:57 2017 +0200
+++ b/hgext3rd/evolve/obsdiscovery.py	Tue May 30 12:32:14 2017 +0200
@@ -703,6 +703,9 @@
 # the obshash of its parents.  This is similar to what happend for changeset
 # node where the parent is used in the computation
 
+def _canobshashtree(repo, remote):
+    return remote.capable('_evoext_obshash_0')
+
 @eh.command(
     'debugobsrelsethashtree',
     [('', 'v0', None, 'hash on marker format "0"'),
@@ -855,7 +858,7 @@
         revs = list(repo.revs('::%ln', pushop.futureheads))
         unfi = repo.unfiltered()
         cl = unfi.changelog
-        if not pushop.remote.capable('_evoext_obshash_0'):
+        if not _canobshashtree(repo, pushop.remote):
             return orig(pushop)
 
         common = []