void packed_refs_unlock(struct ref_store *ref_store);
int packed_refs_is_locked(struct ref_store *ref_store);
-void add_packed_ref(struct ref_store *ref_store,
- const char *refname, const struct object_id *oid);
-
-int commit_packed_refs(struct ref_store *ref_store, struct strbuf *err);
-
-int repack_without_refs(struct ref_store *ref_store,
- struct string_list *refnames, struct strbuf *err);
+/*
+ * Return true if `transaction` really needs to be carried out against
+ * the specified packed_ref_store, or false if it can be skipped
+ * (i.e., because it is an obvious NOOP). `ref_store` must be locked
+ * before calling this function.
+ */
+int is_packed_transaction_needed(struct ref_store *ref_store,
+ struct ref_transaction *transaction);
#endif /* REFS_PACKED_BACKEND_H */