perform

# File railties/lib/rails/commands/plugin/plugin_command.rb, line 23
      def perform(type = nil, *plugin_args)
        plugin_args << "--help" unless type == "new"

        unless options.key?("no_rc") # Thor's not so indifferent access hash.
          railsrc = File.expand_path(options[:rc])

          if File.exist?(railsrc)
            extra_args = File.read(railsrc).split(/\n+/).flat_map(&:split)
            say "Using #{extra_args.join(" ")} from #{railsrc}"
            plugin_args.insert(1, *extra_args)
          end
        end

        run_plugin_generator plugin_args
      end