remote-hg: small performance improvement

Load previous manifest first as Mercurial does; for caching reasons.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/remote-helpers/git-remote-hg b/contrib/remote-helpers/git-remote-hg
index 6f4afd729c9410950abad08b4937acfa0a1b9f78..f80236be63dbaeba92dcaaaaa7e77173d0d394c1 100755 (executable)
--- a/contrib/remote-helpers/git-remote-hg
+++ b/contrib/remote-helpers/git-remote-hg
@@ -230,8 +230,9 @@ def get_filechanges(repo, ctx, parent):
     added = set()
     removed = set()
 
-    cur = ctx.manifest()
+    # load earliest manifest first for caching reasons
     prev = repo[parent].manifest().copy()
+    cur = ctx.manifest()
 
     for fn in cur:
         if fn in prev: