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-rw-r--r--refs/packed-backend.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/refs/packed-backend.h b/refs/packed-backend.h
index 61687e408a..640245d3b9 100644
--- a/refs/packed-backend.h
+++ b/refs/packed-backend.h
@@ -23,4 +23,13 @@ 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 */