Accept tags in HEAD or MERGE_HEAD
[git/git.git] / http-push.c
index 28bfe76..d432b30 100644 (file)
@@ -1606,10 +1606,10 @@ static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
        strbuf_release(&buffer);
 }
 
-static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
+static int verify_merge_base(unsigned char *head_sha1, struct ref *remote)
 {
-       struct commit *head = lookup_commit(head_sha1);
-       struct commit *branch = lookup_commit(branch_sha1);
+       struct commit *head = lookup_commit_or_die(head_sha1, "HEAD");
+       struct commit *branch = lookup_commit_or_die(remote->old_sha1, remote->name);
        struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
 
        return (merge_bases && !merge_bases->next && merge_bases->item == branch);
@@ -1680,7 +1680,7 @@ static int delete_remote_branch(const char *pattern, int force)
                        return error("Remote branch %s resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", remote_ref->name, sha1_to_hex(remote_ref->old_sha1));
 
                /* Remote branch must be an ancestor of remote HEAD */
-               if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
+               if (!verify_merge_base(head_sha1, remote_ref)) {
                        return error("The branch '%s' is not an ancestor "
                                     "of your current HEAD.\n"
                                     "If you are sure you want to delete it,"