packbuilder: add accessors for the number of total and written objects

include/git2/pack.h

@@ -88,6 +88,20 @@ GIT_EXTERN(int) git_packbuilder_write(git_packbuilder *pb, const char *file);
 GIT_EXTERN(int) git_packbuilder_foreach(git_packbuilder *pb, int (*cb)(void *buf, size_t size, void *data), void *data);
 
 /**
+ * Get the total number of objects the packbuilder will write out
+ *
+ * @param pb the packbuilder
+ */
+GIT_EXTERN(uint32_t) git_packbuilder_object_count(git_packbuilder *pb);
+
+/**
+ * Get the number of objects the packbuilder has already written out
+ *
+ * @param pb the packbuilder
+ */
+GIT_EXTERN(uint32_t) git_packbuilder_written(git_packbuilder *pb);
+
+/**
  * Free the packbuilder and all associated data
  *
  * @param pb The packbuilder

src/pack-objects.c

@@ -1292,6 +1292,16 @@ int git_packbuilder_insert_tree(git_packbuilder *pb, const git_oid *oid)
 	return 0;
 }
 
+uint32_t git_packbuilder_object_count(git_packbuilder *pb)
+{
+	return pb->nr_objects;
+}
+
+uint32_t git_packbuilder_written(git_packbuilder *pb)
+{
+	return pb->nr_written;
+}
+
 void git_packbuilder_free(git_packbuilder *pb)
 {
 	if (pb == NULL)