Fixed VCS.children() and Bzr.children() for non-None revisions.

Now they both pass
  VersionedStorage_commit_TestCase.test_commit_revision_ids()

The .children() implementation for previous revisions lacks the
working directory's id<->path cache, so it's fairly slow...

1 files changed, 6 insertions, 1 deletions

diff --git a/libbe/storage/base.py b/libbe/storage/base.py
index 9807d86..d16c30b 100644
--- a/libbe/storage/base.py
+++ b/libbe/storage/base.py
@@ -37,7 +37,12 @@ class InvalidStorageVersion(ConnectionError):
         self.expected_version = expected_version
 
 class InvalidID (KeyError):
-    pass
+    def __init__(self, id=None, revision=None, msg=None):
+        if msg == None and id != None:
+            msg = id
+        KeyError.__init__(self, msg)
+        self.id = id
+        self.revision = revision
 
 class InvalidRevision (KeyError):
     pass