only rewrite templated files when the content has changed
only rewrite templated files when the content has changed

ros2/rosidl_typesupport,esteve/rosidl,ros2/rosidl_typesupport,ros2/rosidl_typesupport,esteve/rosidl_typesupport,esteve/rosidl,ros2/rosidl,ros2/rosidl,ros2/rosidl,esteve/rosidl_typesupport,esteve/rosidl_typesupport,esteve/rosidl,ros2/rosidl