Rev 3053: PackRepository.get_ancestry() tells its indexes that it should buffer before it starts grabbing all of history. in http://bzr.arbash-meinel.com/branches/bzr/jam-integration

[John Arbash Meinel]

At http://bzr.arbash-meinel.com/branches/bzr/jam-integration

------------------------------------------------------------
revno: 3053
revision-id:john at arbash-meinel.com-20071129232902-xlmhssl1u4lyct64
parent: pqm at pqm.ubuntu.com-20071129184101-u9506rihe4zbzyyz
committer: John Arbash Meinel <john at arbash-meinel.com>
branch nick: jam-integration
timestamp: Thu 2007-11-29 17:29:02 -0600
message:
  PackRepository.get_ancestry() tells its indexes that it should buffer before it starts grabbing all of history.
modified:
  bzrlib/index.py                index.py-20070712131115-lolkarso50vjr64s-1
  bzrlib/repofmt/pack_repo.py    pack_repo.py-20070813041115-gjv5ma7ktfqwsjgn-1
-------------- next part --------------
=== modified file 'bzrlib/index.py'
--- a/bzrlib/index.py	2007-11-28 00:59:30 +0000
+++ b/bzrlib/index.py	2007-11-29 23:29:02 +0000
@@ -1114,6 +1114,11 @@
         for index in self._indices:
             index.validate()
 
+    def buffer_all(self):
+        for index in self._indices:
+            if index._nodes is None:
+                index._buffer_all()
+
 
 class InMemoryGraphIndex(GraphIndexBuilder):
     """A GraphIndex which operates entirely out of memory and is mutable.

=== modified file 'bzrlib/repofmt/pack_repo.py'
--- a/bzrlib/repofmt/pack_repo.py	2007-11-28 21:55:07 +0000
+++ b/bzrlib/repofmt/pack_repo.py	2007-11-29 23:29:02 +0000
@@ -1602,6 +1602,21 @@
             pb.finished()
         return result
 
+    @needs_read_lock
+    def get_ancestry(self, revision_id, topo_sorted=True):
+        """Return a list of revision-ids integrated by a revision.
+        
+        This is topologically sorted, unless 'topo_sorted' is specified as
+        False.
+        """
+        if _mod_revision.is_null(revision_id):
+            return [None]
+        self._pack_collection.ensure_loaded()
+        index = self._pack_collection.revision_index.combined_index
+        index.buffer_all()
+        return super(KnitPackRepository, self).get_ancestry(
+            revision_id=revision_id, topo_sorted=topo_sorted)
+
     def get_parents(self, revision_ids):
         """See StackedParentsProvider.get_parents.