Rev 3461: Change the RevisionSpec_revno so that it doesn't need to grab the revision_history first. in http://bzr.arbash-meinel.com/branches/bzr/1.6-dev/revno_no_history

[John Arbash Meinel]

At http://bzr.arbash-meinel.com/branches/bzr/1.6-dev/revno_no_history

------------------------------------------------------------
revno: 3461
revision-id: john at arbash-meinel.com-20080530004224-1zq421goscvxm6o1
parent: pqm at pqm.ubuntu.com-20080529210000-bycgfufmrqq63tki
committer: John Arbash Meinel <john at arbash-meinel.com>
branch nick: revno_no_history
timestamp: Thu 2008-05-29 19:42:24 -0500
message:
  Change the RevisionSpec_revno so that it doesn't need to grab the revision_history first.
modified:
  bzrlib/revisionspec.py         revisionspec.py-20050907152633-17567659fd5c0ddb
-------------- next part --------------
=== modified file 'bzrlib/revisionspec.py'
--- a/bzrlib/revisionspec.py	2008-05-08 04:33:38 +0000
+++ b/bzrlib/revisionspec.py	2008-05-30 00:42:24 +0000
@@ -135,6 +135,7 @@
     """
 
     prefix = None
+    wants_revision_history = True
 
     def __new__(cls, spec, _internal=False):
         if _internal:
@@ -215,7 +216,10 @@
 
     def in_history(self, branch):
         if branch:
-            revs = branch.revision_history()
+            if self.wants_revision_history:
+                revs = branch.revision_history()
+            else:
+                revs = None
         else:
             # this should never trigger.
             # TODO: make it a deprecated code path. RBC 20060928
@@ -292,6 +296,7 @@
                                    your history is very long.
     """
     prefix = 'revno:'
+    wants_revision_history = False
 
     def _match_on(self, branch, revs):
         """Lookup a revision by revision number"""