-/*
- * Call fn for each reference in the specified ref_cache, omitting
- * references not in the containing_dir of prefix. Call fn for all
- * references, including broken ones. If fn ever returns a non-zero
- * value, stop the iteration and return that value; otherwise, return
- * 0.
- */
-static int do_for_each_entry(struct ref_cache *refs, const char *prefix,
- each_ref_entry_fn fn, void *cb_data)
-{
- struct packed_ref_cache *packed_ref_cache;
- struct ref_dir *loose_dir;
- struct ref_dir *packed_dir;
- int retval = 0;
-
- /*
- * We must make sure that all loose refs are read before accessing the
- * packed-refs file; this avoids a race condition in which loose refs
- * are migrated to the packed-refs file by a simultaneous process, but
- * our in-memory view is from before the migration. get_packed_ref_cache()
- * takes care of making sure our view is up to date with what is on
- * disk.
- */
- loose_dir = get_loose_refs(refs);
- if (prefix && *prefix) {
- loose_dir = find_containing_dir(loose_dir, prefix, 0);
- }
- if (loose_dir)
- prime_ref_dir(loose_dir);
-
- packed_ref_cache = get_packed_ref_cache(refs);
- acquire_packed_ref_cache(packed_ref_cache);
- packed_dir = get_packed_ref_dir(packed_ref_cache);
- if (prefix && *prefix) {
- packed_dir = find_containing_dir(packed_dir, prefix, 0);
- }
-
- if (packed_dir && loose_dir) {
- sort_ref_dir(packed_dir);
- sort_ref_dir(loose_dir);
- retval = do_for_each_entry_in_dirs(
- packed_dir, loose_dir, fn, cb_data);
- } else if (packed_dir) {
- sort_ref_dir(packed_dir);
- retval = do_for_each_entry_in_dir(
- packed_dir, 0, fn, cb_data);
- } else if (loose_dir) {
- sort_ref_dir(loose_dir);
- retval = do_for_each_entry_in_dir(
- loose_dir, 0, fn, cb_data);
- }
-
- release_packed_ref_cache(packed_ref_cache);
- return retval;
-}
-
-int do_for_each_ref(const char *submodule, const char *prefix,
- each_ref_fn fn, int trim, int flags, void *cb_data)
-{
- struct ref_entry_cb data;
- struct ref_cache *refs;
-
- refs = get_ref_cache(submodule);
- if (!refs)
- return 0;
-
- data.prefix = prefix;
- data.trim = trim;
- data.flags = flags;
- data.fn = fn;
- data.cb_data = cb_data;
-
- if (ref_paranoia < 0)
- ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0);
- if (ref_paranoia)
- data.flags |= DO_FOR_EACH_INCLUDE_BROKEN;
-
- return do_for_each_entry(refs, prefix, do_one_ref, &data);
-}
-