Change Rails::Application to a class that is inherited from.

	This is still very experimental.

railties/lib/rails.rb

-require 'rails/application'
 require 'rails/initializer'

railties/lib/rails/application.rb

 module Rails
   class Application
-    attr_accessor :config
 
-    def self.load(environment_file)
-      environment = File.read(environment_file)
-      Object.class_eval(environment, environment_file)
+    def self.config
+      @config ||= Configuration.new
+    end
+
+    def self.config=(config)
+      @config = config
+    end
+
+    def config
+      self.class.config
     end
 
     def routes
@@ -16,7 +22,7 @@ def middleware
     end
 
     def call(env)
-      @app ||= middleware.build(@routes)
+      @app ||= middleware.build(routes)
       @app.call(env)
     end
   end

railties/lib/rails/generators/rails/app/templates/config.ru

-# Rack Dispatcher
-
-# Bootstrap rails
-require ::File.dirname(__FILE__) + '/config/boot'
 # Require your environment file to bootstrap Rails
+require ::File.dirname(__FILE__) + '/config/environment'
 
 # Dispatch the request
-run Rails::Application.load(::File.dirname(__FILE__) + '/config/environment.rb')
+run Rails.application.new

railties/lib/rails/initializer.rb

@@ -30,7 +30,7 @@ def config=(config)
         end
 
         def config
-          @@config
+          @@config || Configuration.new
         end
         alias configuration config
 
@@ -96,15 +96,6 @@ def run(initializer = nil)
         else
           @initializers.each {|block| run_initializer(block) }
         end
-
-        # HAX
-        # TODO: remove hax
-        unless initializer
-          app = Rails::Application.new
-          app.config = @config
-
-          Rails.application = app
-        end
       end
     end
 
@@ -113,10 +104,16 @@ def self.default
     end
 
     def self.run(initializer = nil, config = nil)
-      default.config = config if config
-      default.config ||= Configuration.new
-      yield default.config if block_given?
-      default.run(initializer)
+      # TODO: Clean this all up
+      if initializer
+        default.config = config
+        default.run(initializer)
+      else
+        Rails.application = Class.new(Application)
+        yield Rails.application.config if block_given?
+        default.config = Rails.application.config
+        default.run
+      end
     end
   end
 

railties/test/application/load_test.rb

@@ -40,11 +40,7 @@ def setup
 
     test "Rails.application is available after config.ru has been racked up" do
       rackup
-      assert Rails.application.is_a?(Rails::Application)
-    end
-
-    test "class_evaling config/environment.rb returns the application object" do
-      assert Rails::Application.load("#{app_path}/config/environment.rb").is_a?(Rails::Application)
+      assert Rails.application.new.is_a?(Rails::Application)
     end
 
     test "the config object is available on the application object" do