X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=commit.c;h=9f4cc636dd74e99a1311500e15501bdb4875cb9d;hb=00653435488f5ed86c5d6dc411fa14fa56f5e3bc;hp=97b43279cdf46159462d5f56abc20f2161f4c7ea;hpb=8a728644263b470a6f1ac482b5c141ca61594ab8;p=git.git

diff --git a/commit.c b/commit.c
index 97b43279c..9f4cc636d 100644
--- a/commit.c
+++ b/commit.c
@@ -39,6 +39,18 @@ struct commit *lookup_commit_reference(const unsigned char *sha1)
 	return lookup_commit_reference_gently(sha1, 0);
 }
 
+struct commit *lookup_commit_or_die(const unsigned char *sha1, const char *ref_name)
+{
+	struct commit *c = lookup_commit_reference(sha1);
+	if (!c)
+		die(_("could not parse %s"), ref_name);
+	if (hashcmp(sha1, c->object.sha1)) {
+		warning(_("%s %s is not a commit!"),
+			ref_name, sha1_to_hex(sha1));
+	}
+	return c;
+}
+
 struct commit *lookup_commit(const unsigned char *sha1)
 {
 	struct object *obj = lookup_object(sha1);