[PATCH 1 of 3] store: add a __contains__ method to basicstore which checks if the supplied path exists in the store

[S Muralidhar]

# HG changeset patch
# User smuralid
# Date 1347510230 25200
# Node ID d6d5af14c18dcc7f483d1fc069660255d16d034a
# Parent  8fea378242e317d2311c86436ed45e95821513e4
store: add a __contains__ method to basicstore which checks if the supplied path exists in the store

diff --git a/mercurial/store.py b/mercurial/store.py
--- a/mercurial/store.py
+++ b/mercurial/store.py
@@ -286,6 +286,10 @@
     def write(self):
         pass
 
+    def __contains__(self, path):
+        '''Checks if this path exists in the store'''
+        return self.opener.exists(path)
+
 class encodedstore(basicstore):
     def __init__(self, path, openertype):
         self.path = path + '/store'