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-rw-r--r--refs/iterator.c29
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;
+}