From 3b7d368f34715003c834233d9f23456bcb62b44a Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org.(none)>
Date: Tue, 19 Apr 2005 09:52:24 -0700
Subject: Don't parse commit objects more than once.

Yes, the "parse_commit()" already checks for this condition, but
we need to check for it in rev-tree too, so that we don't start
walking the parent chain unnecessarily.

diff --git a/rev-tree.c b/rev-tree.c
index c3884e3..ebeceb0 100644
--- a/rev-tree.c
+++ b/rev-tree.c
@@ -55,6 +55,10 @@ void process_commit(unsigned char *sha1)
 {
 	struct commit_list *parents;
 	struct commit *obj = lookup_commit(sha1);
+
+	if (obj->object.parsed)
+		return;
+
 	parse_commit(obj);
 	
 	parents = obj->parents;
-- 
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