test_cmp: do not use "diff -u" on platforms that lack one

diff --git a/refs.c b/refs.c
index 63e30d74a7eacee53682b20068e8e24a37840ccc..a7ad3fd8fa4f9f57776ba933f6976af661cb17e7 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -6,6 +6,7 @@
 
 /* ISSYMREF=01 and ISPACKED=02 are public interfaces */
 #define REF_KNOWS_PEELED 04
+#define REF_BROKEN 010
 
 struct ref_list {
        struct ref_list *next;
@@ -275,8 +276,10 @@ static struct ref_list *get_ref_dir(const char *base, struct ref_list *list)
                                list = get_ref_dir(ref, list);
                                continue;
                        }
-                       if (!resolve_ref(ref, sha1, 1, &flag))
+                       if (!resolve_ref(ref, sha1, 1, &flag)) {
                                hashclr(sha1);
+                               flag |= REF_BROKEN;
+                       }
                        list = add_ref(ref, sha1, flag, list, NULL);
                }
                free(ref);
@@ -311,7 +314,11 @@ static int warn_if_dangling_symref(const char *refname, const unsigned char *sha
 
 void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname)
 {
-       struct warn_if_dangling_data data = { fp, refname, msg_fmt };
+       struct warn_if_dangling_data data;
+
+       data.fp = fp;
+       data.refname = refname;
+       data.msg_fmt = msg_fmt;
        for_each_rawref(warn_if_dangling_symref, &data);
 }
 
@@ -539,10 +546,10 @@ static int do_one_ref(const char *base, each_ref_fn fn, int trim,
 {
        if (strncmp(base, entry->name, trim))
                return 0;
-       /* Is this a "negative ref" that represents a deleted ref? */
-       if (is_null_sha1(entry->sha1))
-               return 0;
+
        if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) {
+               if (entry->flag & REF_BROKEN)
+                       return 0; /* ignore dangling symref */
                if (!has_sha1_file(entry->sha1)) {
                        error("%s does not point to a valid object!", entry->name);
                        return 0;
@@ -695,7 +702,6 @@ int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
 {
        struct strbuf real_pattern = STRBUF_INIT;
        struct ref_filter filter;
-       const char *has_glob_specials;
        int ret;
 
        if (!prefix && prefixcmp(pattern, "refs/"))
@@ -704,8 +710,7 @@ int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
                strbuf_addstr(&real_pattern, prefix);
        strbuf_addstr(&real_pattern, pattern);
 
-       has_glob_specials = strpbrk(pattern, "?*[");
-       if (!has_glob_specials) {
+       if (!has_glob_specials(pattern)) {
                /* Append implied '/' '*' if not present. */
                if (real_pattern.buf[real_pattern.len - 1] != '/')
                        strbuf_addch(&real_pattern, '/');
@@ -1275,6 +1280,7 @@ static int log_ref_write(const char *ref_name, const unsigned char *old_sha1,
        if (log_all_ref_updates &&
            (!prefixcmp(ref_name, "refs/heads/") ||
             !prefixcmp(ref_name, "refs/remotes/") ||
+            !prefixcmp(ref_name, "refs/notes/") ||
             !strcmp(ref_name, "HEAD"))) {
                if (safe_create_leading_directories(log_file) < 0)
                        return error("unable to create directory for %s",