# HG changeset patch
# User Oben Sonne <obensonne@googlemail.com>
# Date 1311017192 -7200
#      Mon Jul 18 21:26:32 2011 +0200
# Node ID 832220ba4b56ef97bc204c23b8885d57d14050eb
# Parent  87bb785c574fd32a84749d43732368cc15a121d1
# Parent  46c042e1e1596bd5bda69c4a7998d15b76c382cc
Merge with talklittle's fork

diff --git a/compass.py b/compass.py
--- a/compass.py
+++ b/compass.py
@@ -76,6 +76,8 @@
         self.repo = repo
         self.out_closed = not opts["hide_closed"]
         self.out_inactive = not opts["hide_inactive"]
+        self.branchtags_cached = None
+        self.branchtags_repo = None
         
         # all head revisions
         self.head_revs = _csi2rev(repo, repo.heads())
@@ -120,6 +122,13 @@
             revs.remove(ctx.rev())
         return revs
     
+    def branchtags(self):
+        """Get branch tags of the repo, using cache if available."""
+        if self.repo != self.branchtags_repo:
+            self.branchtags_cached = self.repo.branchtags()
+            self.branchtags_repo = self.repo
+        return self.branchtags_cached
+
 class BranchInfo(object):
     """Various information about a branch."""
     
@@ -127,7 +136,7 @@
         
         self.name = name
         
-        self.tip_rev = _csi2rev(ri.repo, ri.repo.branchtags()[name])
+        self.tip_rev = _csi2rev(ri.repo, ri.branchtags()[name])
         self.head_revs = bh_revs
         self.head_revs_bm = [x for x in self.head_revs if x in ri.bm_revs]
         self.head_revs_active = [x for x in self.head_revs if x in ri.head_revs]