[PATCH 06/16] reachable: clear pending array after walking it

[Jeff King <peff@peff.net>]

We add a number of objects to our "pending" array, and then
process it with a combination of get_revision and walking
the pending array ourselves (to catch any non-commits). The
commits in the pending array are cleaned up automatically by
prepare_revision_walk, but we essentially leak any other
objects (they are technically still reachable from rev_info,
but no callers ever look at them or bother to clean them
up).

This is not a huge deal in practice, as the number of
non-commits tends to be small. However, a future patch will
broaden this considerably. Let's call object_array_clear to
free the memory.

Signed-off-by: Jeff King <peff@peff.net>
---
 reachable.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/reachable.c b/reachable.c
index 6f6835b..d99bd31 100644
--- a/reachable.c
+++ b/reachable.c
@@ -131,6 +131,8 @@ static void walk_commit_list(struct rev_info *revs,
 		}
 		die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
 	}
+
+	object_array_clear(&revs->pending);
 }
 
 static int add_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
-- 
2.1.1.566.gdb1f904