repo: move visibleheads and visiblebranchmap logic in discovery They were previously inside the mercurial.phases module, but obsolete logic will need them to exclude `extinct` changesets from pull and push. The proper and planned way to implement such filtering is still to apply a changelog level filtering. But we are far to late in the cycle to implement and push such a critical piece of code (changelog filtering). With Matt Mackall approval I'm extending this quick and dirty mechanism for obsolete purpose. Changelog level filtering should come during the next release cycle.

--- a/mercurial/localrepo.py	Tue Jul 17 01:04:45 2012 +0200
+++ b/mercurial/localrepo.py	Tue Jul 17 01:22:31 2012 +0200
@@ -56,10 +56,10 @@
         return self._repo.lookup(key)
 
     def branchmap(self):
-        return phases.visiblebranchmap(self._repo)
+        return discovery.visiblebranchmap(self._repo)
 
     def heads(self):
-        return phases.visibleheads(self._repo)
+        return discovery.visibleheads(self._repo)
 
     def known(self, nodes):
         return self._repo.known(nodes)