diff -r a90499a6ad8d -r 965788d9ae09 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Tue Dec 23 16:16:26 2014 -0800
+++ b/mercurial/localrepo.py	Sun Dec 21 00:19:10 2014 +0100
@@ -758,6 +758,12 @@
         # if publishing we can't copy if there is filtered content
         return not self.filtered('visible').changelog.filteredrevs
 
+    def shared(self):
+        '''the type of shared repository (None if not shared)'''
+        if self.sharedpath != self.path:
+            return 'store'
+        return None
+
     def join(self, f, *insidef):
         return os.path.join(self.path, f, *insidef)