Function parse_cmd_symref_verify

builtin/update-ref.c:558–593

}

static void parse_cmd_symref_verify(struct ref_transaction *transaction,
				    const char *next, const char *end UNUSED,
				    struct command_options *opts UNUSED)
{
	struct strbuf err = STRBUF_INIT;
	struct object_id old_oid;
	char *refname, *old_target;

	if (!(update_flags & REF_NO_DEREF))
		die("symref-verify: cannot operate with deref mode");

	refname = parse_refname(&next);
	if (!refname)
		die("symref-verify: missing <ref>");

	/*
	 * old_ref is optional, if not provided, we need to ensure that the
	 * ref doesn't exist.
	 */
	old_target = parse_next_refname(&next);
	if (!old_target)
		oidcpy(&old_oid, null_oid(the_hash_algo));

	if (*next != line_termination)
		die("symref-verify %s: extra input: %s", refname, next);

	if (ref_transaction_verify(transaction, refname,
				   old_target ? NULL : &old_oid,
				   old_target, update_flags, &err))
		die("%s", err.buf);

	update_flags = default_flags;
	free(refname);
	free(old_target);
	strbuf_release(&err);
}

static void report_ok(const char *command)
{