reload

# File actionpack/lib/action_controller/routing/route_set.rb, line 275
      def reload
        if configuration_files.any? && @routes_last_modified
          if routes_changed_at == @routes_last_modified
            return # routes didn't change, don't reload
          else
            @routes_last_modified = routes_changed_at
          end
        end

        load!
      end