Merge branch 'ss/wt-status-committable'

diff --git a/refs/packed-backend.h b/refs/packed-backend.h
index 61687e408ad4b83d111531f9d5b10a058abcf673..a01a0aff9c77280d7b3e605230af822fdab24ca9 100644 (file)
--- a/refs/packed-backend.h
+++ b/refs/packed-backend.h
@@ -1,6 +1,8 @@
 #ifndef REFS_PACKED_BACKEND_H
 #define REFS_PACKED_BACKEND_H
 
+struct ref_transaction;
+
 /*
  * Support for storing references in a `packed-refs` file.
  *
@@ -23,4 +25,13 @@ int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err)
 void packed_refs_unlock(struct ref_store *ref_store);
 int packed_refs_is_locked(struct ref_store *ref_store);
 
+/*
+ * 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 */