Merge pull request #971 from jeffhostetler/jeffhostetler/add_preload_fscache

add: use preload-index and fscache for performance

Author: dscho

builtin/add.c

@@ -475,6 +475,10 @@ int cmd_add(int argc,
 	die_in_unpopulated_submodule(repo->index, prefix);
 	die_path_inside_submodule(repo->index, &pathspec);
 
+	enable_fscache(1);
+	/* We do not really re-read the index but update the up-to-date flags */
+	preload_index(repo->index, &pathspec, 0);
+
 	if (add_new_files) {
 		int baselen;
 
@@ -587,5 +591,6 @@ int cmd_add(int argc,
 	free(ps_matched);
 	dir_clear(&dir);
 	clear_pathspec(&pathspec);
+	enable_fscache(0);
 	return exit_status;
 }