1 files changed, 29 insertions, 0 deletions
diff --git a/refs/iterator.c b/refs/iterator.c
index 93ba472f91..bce1f192f7 100644
--- a/refs/iterator.c
+++ b/refs/iterator.c
@@ -353,3 +353,32 @@ struct ref_iterator *prefix_ref_iterator_begin(struct ref_iterator *iter0,
 
 	return ref_iterator;
 }
+
+struct ref_iterator *current_ref_iter = NULL;
+
+int do_for_each_ref_iterator(struct ref_iterator *iter,
+			     each_ref_fn fn, void *cb_data)
+{
+	int retval = 0, ok;
+	struct ref_iterator *old_ref_iter = current_ref_iter;
+
+	current_ref_iter = iter;
+	while ((ok = ref_iterator_advance(iter)) == ITER_OK) {
+		retval = fn(iter->refname, iter->oid, iter->flags, cb_data);
+		if (retval) {
+			/*
+			 * If ref_iterator_abort() returns ITER_ERROR,
+			 * we ignore that error in deference to the
+			 * callback function's return value.
+			 */
+			ref_iterator_abort(iter);
+			goto out;
+		}
+	}
+
+out:
+	current_ref_iter = old_ref_iter;
+	if (ok == ITER_ERROR)
+		return -1;
+	return retval;
+}