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context: allow passing the common cset ancestor to fctx.ancestor stable
authorPeter Arrenbrecht <peter.arrenbrecht@gmail.com>
Fri, 18 Jun 2010 08:48:05 +0200
branchstable
changeset 11453 2ee26044d846
parent 11452 eac141407b85
child 11454 9b0406b23be0
context: allow passing the common cset ancestor to fctx.ancestor This is used by the next patch to speed up merge.applyupdates.
mercurial/context.py file | annotate | diff | comparison | revisions 
--- a/mercurial/context.py	Sun Jun 27 17:41:43 2010 -0500
+++ b/mercurial/context.py	Fri Jun 18 08:48:05 2010 +0200
@@ -490,12 +490,16 @@
 
         return zip(hist[f][0], hist[f][1].splitlines(True))
 
-    def ancestor(self, fc2):
+    def ancestor(self, fc2, actx=None):
         """
         find the common ancestor file context, if any, of self, and fc2
+
+        If actx is given, it must be the changectx of the common ancestor
+        of self's and fc2's respective changesets.
         """
 
-        actx = self.changectx().ancestor(fc2.changectx())
+        if actx is None:
+            actx = self.changectx().ancestor(fc2.changectx())
 
         # the trivial case: changesets are unrelated, files must be too
         if not actx:
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