add general utility

main_cros_reposync_build.sh

@@ -25,6 +25,8 @@ expect "local_manifests"
 spawn ./cros_reposync.sh ${working_dir}
 expect "repo sync has finished successfully"
 
+# todo: copy the utility scripts into src/script directory
+
 spawn ./cros_enter_sdk.sh 
 expect "password"
 send "${user_password :: -1}\r"