diff --git a/builtin-update-ref.c b/builtin-update-ref.c
index 1e714a3c93416a081cb8d83c7a3d33b7dd265c88..d90d11d2e35c38baab32f05f58125aaf1baee6cc 100644 (file)
--- a/builtin-update-ref.c
+++ b/builtin-update-ref.c
#include "parse-options.h"
static const char * const git_update_ref_usage[] = {
- "git-update-ref [options] -d <refname> <oldval>",
+ "git-update-ref [options] -d <refname> [<oldval>]",
"git-update-ref [options] <refname> <newval> [<oldval>]",
NULL
};
die("Refusing to perform update with empty message.");
if (delete) {
- if (argc != 2)
+ if (argc < 1 || argc > 2)
usage_with_options(git_update_ref_usage, options);
refname = argv[0];
oldval = argv[1];
die("%s: not a valid old SHA1", oldval);
if (delete)
- return delete_ref(refname, oldsha1);
+ return delete_ref(refname, oldval ? oldsha1 : NULL);
else
return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
no_deref ? REF_NODEREF : 0, DIE_ON_ERR);