in_merge_bases(): use paint_down_to_common()
With paint_down_to_common(), we can tell if "commit" is reachable
from "reference" by simply looking at its object flag, instead of
iterating over the merge bases.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/commit.c b/commit.c
index 0058fa5..d39a9e9 100644
--- a/commit.c
+++ b/commit.c
@@ -786,20 +786,17 @@
*/
int in_merge_bases(struct commit *commit, struct commit *reference)
{
- struct commit_list *bases, *b;
+ struct commit_list *bases;
int ret = 0;
- bases = merge_bases_many(commit, 1, &reference);
+ if (parse_commit(commit) || parse_commit(reference))
+ return ret;
+
+ bases = paint_down_to_common(commit, 1, &reference);
+ if (commit->object.flags & PARENT2)
+ ret = 1;
clear_commit_marks(commit, all_flags);
clear_commit_marks(reference, all_flags);
-
- for (b = bases; b; b = b->next) {
- if (!hashcmp(commit->object.sha1, b->item->object.sha1)) {
- ret = 1;
- break;
- }
- }
-
free_commit_list(bases);
return ret;
}
