# HG changeset patch
# User Bryan O'Sullivan <bryano@fb.com>
# Date 2016-01-15 21:14:50
# Node ID b2efdb66c4069f7dffb612898b651fbe0ff0f494
# Parent  002108b219e36e1f85f77a94e0530fe8c1b80e92

with: use context manager in subrepo _cachestorehash

diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -679,13 +679,10 @@ class hgsubrepo(abstractsubrepo):
         store may be "clean" versus a given remote repo, but not versus another
         '''
         cachefile = _getstorehashcachename(remotepath)
-        lock = self._repo.lock()
-        try:
+        with self._repo.lock():
             storehash = list(self._calcstorehash(remotepath))
             vfs = self._cachestorehashvfs
             vfs.writelines(cachefile, storehash, mode='w', notindexed=True)
-        finally:
-            lock.release()
 
     def _getctx(self):
         '''fetch the context for this subrepo revision, possibly a workingctx