perf: add test for writing the index

diff --git a/builtin/symbolic-ref.c b/builtin/symbolic-ref.c
index 29fb3f1c201682674f8a473c235dd2f1f539f287..df75cb9d4a21a76df3451f925d674b475dc26753 100644 (file)
--- a/builtin/symbolic-ref.c
+++ b/builtin/symbolic-ref.c
@@ -1,11 +1,12 @@
 #include "builtin.h"
+#include "config.h"
 #include "cache.h"
 #include "refs.h"
 #include "parse-options.h"
 
 static const char * const git_symbolic_ref_usage[] = {
-       N_("git symbolic-ref [options] name [ref]"),
-       N_("git symbolic-ref -d [-q] name"),
+       N_("git symbolic-ref [<options>] <name> [<ref>]"),
+       N_("git symbolic-ref -d [-q] <name>"),
        NULL
 };
 
@@ -56,7 +57,9 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
                ret = check_symref(argv[0], 1, 0, 0);
                if (ret)
                        die("Cannot delete %s, not a symbolic ref", argv[0]);
-               return delete_ref(argv[0], NULL, REF_NODEREF);
+               if (!strcmp(argv[0], "HEAD"))
+                       die("deleting '%s' is not allowed", argv[0]);
+               return delete_ref(NULL, argv[0], NULL, REF_NODEREF);
        }
 
        switch (argc) {
@@ -67,7 +70,7 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
                if (!strcmp(argv[0], "HEAD") &&
                    !starts_with(argv[1], "refs/"))
                        die("Refusing to point HEAD outside of refs/");
-               create_symref(argv[0], argv[1], msg);
+               ret = !!create_symref(argv[0], argv[1], msg);
                break;
        default:
                usage_with_options(git_symbolic_ref_usage, options);