Fix compatibility with bzr 2.5.

1 files changed, 5 insertions, 1 deletions

diff --git a/revision_store.py b/revision_store.py
index 6b92f15..33b89de 100644
--- a/revision_store.py
+++ b/revision_store.py
@@ -411,8 +411,12 @@ class AbstractRevisionStore(object):
         # This is a duplicate of Builder.commit() since we already have the
         # Revision object, and we *don't* want to call commit_write_group()
         rev.inv_sha1 = builder.inv_sha1
+        try:
+            config = builder._config_stack
+        except AttributeError: # bzr < 2.5
+            config = builder._config
         builder.repository.add_revision(builder._new_revision_id, rev,
-            builder.new_inventory, builder._config)
+            builder.new_inventory)
         if self._graph is not None:
             # TODO: Use StaticTuple and .intern() for these things
             self._graph.add_node(builder._new_revision_id, rev.parent_ids)