strbuf_release(&err);
return ret;
}
+
+int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+{
+ struct object_id oid;
+ int flag;
+
+ if (submodule) {
+ if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0)
+ return fn("HEAD", &oid, 0, cb_data);
+
+ return 0;
+ }
+
+ if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag))
+ return fn("HEAD", &oid, flag, cb_data);
+
+ return 0;
+}
+
+int head_ref(each_ref_fn fn, void *cb_data)
+{
+ return head_ref_submodule(NULL, fn, cb_data);
+}
+
+int for_each_ref(each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(NULL, "", fn, 0, 0, cb_data);
+}
+
+int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(submodule, "", fn, 0, 0, cb_data);
+}
+
+int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data);
+}
+
+int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
+{
+ unsigned int flag = 0;
+
+ if (broken)
+ flag = DO_FOR_EACH_INCLUDE_BROKEN;
+ return do_for_each_ref(NULL, prefix, fn, 0, flag, cb_data);
+}
+
+int for_each_ref_in_submodule(const char *submodule, const char *prefix,
+ each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data);
+}
+
+int for_each_replace_ref(each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(NULL, git_replace_ref_base, fn,
+ strlen(git_replace_ref_base), 0, cb_data);
+}
+
+int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
+{
+ struct strbuf buf = STRBUF_INIT;
+ int ret;
+ strbuf_addf(&buf, "%srefs/", get_git_namespace());
+ ret = do_for_each_ref(NULL, buf.buf, fn, 0, 0, cb_data);
+ strbuf_release(&buf);
+ return ret;
+}
+
+int for_each_rawref(each_ref_fn fn, void *cb_data)
+{
+ return do_for_each_ref(NULL, "", fn, 0,
+ DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
+}
+
+/* This function needs to return a meaningful errno on failure */
+const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
+ unsigned char *sha1, int *flags)
+{
+ static struct strbuf sb_refname = STRBUF_INIT;
+ int unused_flags;
+ int symref_count;
+
+ if (!flags)
+ flags = &unused_flags;
+
+ *flags = 0;
+
+ if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
+ !refname_is_safe(refname)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /*
+ * dwim_ref() uses REF_ISBROKEN to distinguish between
+ * missing refs and refs that were present but invalid,
+ * to complain about the latter to stderr.
+ *
+ * We don't know whether the ref exists, so don't set
+ * REF_ISBROKEN yet.
+ */
+ *flags |= REF_BAD_NAME;
+ }
+
+ for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) {
+ unsigned int read_flags = 0;
+
+ if (read_raw_ref(refname, sha1, &sb_refname, &read_flags)) {
+ *flags |= read_flags;
+ if (errno != ENOENT || (resolve_flags & RESOLVE_REF_READING))
+ return NULL;
+ hashclr(sha1);
+ if (*flags & REF_BAD_NAME)
+ *flags |= REF_ISBROKEN;
+ return refname;
+ }
+
+ *flags |= read_flags;
+
+ if (!(read_flags & REF_ISSYMREF)) {
+ if (*flags & REF_BAD_NAME) {
+ hashclr(sha1);
+ *flags |= REF_ISBROKEN;
+ }
+ return refname;
+ }
+
+ refname = sb_refname.buf;
+ if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
+ hashclr(sha1);
+ return refname;
+ }
+ if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
+ !refname_is_safe(refname)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ *flags |= REF_ISBROKEN | REF_BAD_NAME;
+ }
+ }
+
+ errno = ELOOP;
+ return NULL;
+}