Fist stab on basic rendering

actionpack/lib/action_controller.rb

@@ -13,6 +13,7 @@ module ActionController
   autoload :Middleware
 
   autoload_under "metal" do
+    autoload :BasicRendering, 'action_controller/metal/rendering'
     autoload :Compatibility
     autoload :ConditionalGet
     autoload :Cookies

actionpack/lib/action_controller/base.rb

@@ -14,6 +14,7 @@ module ActionController
   #
   metal = Class.new(Metal) do
     include AbstractController::Rendering
+    include ActionController::BasicRendering
   end
 
   # Action Controllers are the core of a web request in \Rails. They are made up of one or more actions that are executed

actionpack/lib/action_controller/metal/rendering.rb

 module ActionController
+  module BasicRendering
+    extend ActiveSupport::Concern
+
+    # Render template to response_body
+    # :api: public
+    def render(*args, &block)
+      super(*args, &block)
+      text = args.first[:text]
+      if text.present?
+        self.response_body = text
+      end
+    end
+
+    def rendered_format
+      Mime::TEXT
+    end
+  end
+
   module Rendering
     extend ActiveSupport::Concern
 

actionview/lib/action_view/rendering.rb

@@ -80,8 +80,6 @@ def view_renderer
     # Render template to response_body
     # :api: public
     def render(*args, &block)
-      super(*args, &block)
-
       options = _normalize_render(*args, &block)
       self.response_body = render_to_body(options)
     end