Use autoload instead of explicit requires for ActionController

actionpack/lib/action_controller.rb

@@ -32,47 +32,63 @@
 end
 
 $:.unshift "#{File.dirname(__FILE__)}/action_controller/vendor/html-scanner"
-require 'action_controller/vendor/rack'
 
-require 'action_controller/base'
-require 'action_controller/request'
-require 'action_controller/rescue'
-require 'action_controller/benchmarking'
-require 'action_controller/flash'
-require 'action_controller/filters'
-require 'action_controller/layout'
-require 'action_controller/mime_responds'
-require 'action_controller/helpers'
-require 'action_controller/cookies'
-require 'action_controller/cgi_process'
-require 'action_controller/caching'
-require 'action_controller/verification'
-require 'action_controller/streaming'
-require 'action_controller/session_management'
-require 'action_controller/http_authentication'
-require 'action_controller/rack_process'
-require 'action_controller/record_identifier'
-require 'action_controller/request_forgery_protection'
-require 'action_controller/headers'
-require 'action_controller/translation'
+module ActionController
+  # TODO: Review explicit to see if they will automatically be handled by
+  # the initilizer if they are really needed.
+  def self.load_all!
+    [Base, CgiRequest, CgiResponse, RackRequest, RackRequest, Http::Headers, UrlRewriter, UrlWriter]
+  end
 
-require 'action_view'
+  autoload :AbstractRequest, 'action_controller/request'
+  autoload :AbstractResponse, 'action_controller/response'
+  autoload :Base, 'action_controller/base'
+  autoload :Benchmarking, 'action_controller/benchmarking'
+  autoload :Caching, 'action_controller/caching'
+  autoload :CgiRequest, 'action_controller/cgi_process'
+  autoload :CgiResponse, 'action_controller/cgi_process'
+  autoload :Cookies, 'action_controller/cookies'
+  autoload :Dispatcher, 'action_controller/dispatcher'
+  autoload :Filters, 'action_controller/filters'
+  autoload :Flash, 'action_controller/flash'
+  autoload :Helpers, 'action_controller/helpers'
+  autoload :HttpAuthentication, 'action_controller/http_authentication'
+  autoload :IntegrationTest, 'action_controller/integration'
+  autoload :Layout, 'action_controller/layout'
+  autoload :MimeResponds, 'action_controller/mime_responds'
+  autoload :PolymorphicRoutes, 'action_controller/polymorphic_routes'
+  autoload :RackRequest, 'action_controller/rack_process'
+  autoload :RackResponse, 'action_controller/rack_process'
+  autoload :RecordIdentifier, 'action_controller/record_identifier'
+  autoload :RequestForgeryProtection, 'action_controller/request_forgery_protection'
+  autoload :Rescue, 'action_controller/rescue'
+  autoload :Resources, 'action_controller/resources'
+  autoload :Routing, 'action_controller/routing'
+  autoload :SessionManagement, 'action_controller/session_management'
+  autoload :StatusCodes, 'action_controller/status_codes'
+  autoload :Streaming, 'action_controller/streaming'
+  autoload :TestCase, 'action_controller/test_case'
+  autoload :TestProcess, 'action_controller/test_process'
+  autoload :Translation, 'action_controller/translation'
+  autoload :UrlRewriter, 'action_controller/url_rewriter'
+  autoload :UrlWriter, 'action_controller/url_rewriter'
+  autoload :Verification, 'action_controller/verification'
 
-ActionController::Base.class_eval do
-  include ActionController::Flash
-  include ActionController::Filters
-  include ActionController::Layout
-  include ActionController::Benchmarking
-  include ActionController::Rescue
-  include ActionController::MimeResponds
-  include ActionController::Helpers
-  include ActionController::Cookies
-  include ActionController::Caching
-  include ActionController::Verification
-  include ActionController::Streaming
-  include ActionController::SessionManagement
-  include ActionController::HttpAuthentication::Basic::ControllerMethods
-  include ActionController::RecordIdentifier
-  include ActionController::RequestForgeryProtection
-  include ActionController::Translation
+  module Http
+    autoload :Headers, 'action_controller/headers'
+  end
 end
+
+class CGI
+  class Session
+    autoload :ActiveRecordStore, 'action_controller/session/active_record_store'
+    autoload :CookieStore, 'action_controller/session/cookie_store'
+    autoload :DRbStore, 'action_controller/session/drb_store'
+    autoload :MemCacheStore, 'action_controller/session/mem_cache_store'
+  end
+end
+
+autoload :Mime, 'action_controller/mime_type'
+autoload :Rack, 'action_controller/vendor/rack'
+
+ActionController.load_all!

actionpack/lib/action_controller/base.rb

-require 'action_controller/mime_type'
-require 'action_controller/request'
-require 'action_controller/response'
-require 'action_controller/routing'
-require 'action_controller/resources'
-require 'action_controller/url_rewriter'
-require 'action_controller/status_codes'
 require 'action_view'
 require 'drb'
 require 'set'
@@ -1332,4 +1325,11 @@ def process_cleanup
         close_session
       end
   end
+
+  Base.class_eval do
+    include Flash, Filters, Layout, Benchmarking, Rescue, MimeResponds, Helpers
+    include Cookies, Caching, Verification, Streaming
+    include SessionManagement, HttpAuthentication::Basic::ControllerMethods
+    include RecordIdentifier, RequestForgeryProtection, Translation
+  end
 end

actionpack/lib/action_controller/caching.rb

@@ -2,13 +2,6 @@
 require 'uri'
 require 'set'
 
-require 'action_controller/caching/pages'
-require 'action_controller/caching/actions'
-require 'action_controller/caching/sql_cache'
-require 'action_controller/caching/sweeping'
-require 'action_controller/caching/fragments'
-
-
 module ActionController #:nodoc:
   # Caching is a cheap way of speeding up slow applications by keeping the result of calculations, renderings, and database calls
   # around for subsequent requests. Action Controller affords you three approaches in varying levels of granularity: Page, Action, Fragment.
@@ -31,6 +24,12 @@ module ActionController #:nodoc:
   #   ActionController::Base.cache_store = :mem_cache_store, "localhost"
   #   ActionController::Base.cache_store = MyOwnStore.new("parameter")
   module Caching
+    autoload :Actions, 'action_controller/caching/actions'
+    autoload :Fragments, 'action_controller/caching/fragments'
+    autoload :Pages, 'action_controller/caching/pages'
+    autoload :SqlCache, 'action_controller/caching/sql_cache'
+    autoload :Sweeping, 'action_controller/caching/sweeping'
+
     def self.included(base) #:nodoc:
       base.class_eval do
         @@cache_store = nil
@@ -63,10 +62,9 @@ def cache(key, options = {}, &block)
         end
       end
 
-
-    private    
+    private
       def cache_configured?
         self.class.cache_configured?
       end
   end
-end
+end
\ No newline at end of file

actionpack/lib/action_controller/cgi_process.rb

 require 'action_controller/cgi_ext'
-require 'action_controller/session/cookie_store'
 
 module ActionController #:nodoc:
   class Base

actionpack/lib/action_controller/integration.rb

-require 'action_controller/test_case'
-require 'action_controller/dispatcher'
-require 'action_controller/test_process'
-
 require 'stringio'
 require 'uri'
 

actionpack/lib/action_controller/performance_test.rb

-require 'action_controller/integration'
 require 'active_support/testing/performance'
 require 'active_support/testing/default'
 

actionpack/lib/action_controller/rack_process.rb

 require 'action_controller/cgi_ext'
-require 'action_controller/session/cookie_store'
 
 module ActionController #:nodoc:
   class RackRequest < AbstractRequest #:nodoc:

actionpack/lib/action_controller/request_profiler.rb

 require 'optparse'
-require 'action_controller/integration'
 
 module ActionController
   class RequestProfiler

actionpack/lib/action_controller/resources.rb

@@ -669,7 +669,3 @@ def action_options_for(action, resource, method = nil)
       end
   end
 end
-
-class ActionController::Routing::RouteSet::Mapper
-  include ActionController::Resources
-end

actionpack/lib/action_controller/routing.rb

 require 'cgi'
 require 'uri'
-require 'action_controller/polymorphic_routes'
 require 'action_controller/routing/optimisations'
 require 'action_controller/routing/routing_ext'
 require 'action_controller/routing/route'

actionpack/lib/action_controller/routing/route_set.rb

@@ -7,6 +7,8 @@ class RouteSet #:nodoc:
       # Mapper instances have relatively few instance methods, in order to avoid
       # clashes with named routes.
       class Mapper #:doc:
+        include ActionController::Resources
+
         def initialize(set) #:nodoc:
           @set = set
         end

actionpack/lib/action_controller/session_management.rb

-require 'action_controller/session/cookie_store'
-require 'action_controller/session/drb_store'
-require 'action_controller/session/mem_cache_store'
-if Object.const_defined?(:ActiveRecord)
-  require 'action_controller/session/active_record_store'
-end
-
 module ActionController #:nodoc:
   module SessionManagement #:nodoc:
     def self.included(base)

actionpack/lib/action_view/test_case.rb

-require 'action_controller/test_case'
-
 module ActionView
   class TestCase < ActiveSupport::TestCase
     include ActionController::TestCase::Assertions

actionpack/test/activerecord/active_record_store_test.rb

 # These tests exercise CGI::Session::ActiveRecordStore, so you're going to
 # need AR in a sibling directory to AP and have SQLite installed.
 require 'active_record_unit'
-require 'action_controller/session/active_record_store'
 
 module CommonActiveRecordStoreTests
   def test_basics

actionpack/test/controller/cgi_test.rb

 require 'abstract_unit'
-require 'action_controller/cgi_process'
 
 class BaseCgiTest < Test::Unit::TestCase
   def setup

actionpack/test/controller/dispatcher_test.rb

@@ -2,8 +2,6 @@
 
 uses_mocha 'dispatcher tests' do
 
-require 'action_controller/dispatcher'
-
 class DispatcherTest < Test::Unit::TestCase
   Dispatcher = ActionController::Dispatcher
 

actionpack/test/controller/integration_test.rb

 require 'abstract_unit'
-require 'action_controller/integration'
-require 'action_controller/routing'
 
 uses_mocha 'integration' do
 

actionpack/test/controller/integration_upload_test.rb

 require 'abstract_unit'
-require 'action_controller/integration'
-require 'action_controller/routing'
 
 unless defined? ApplicationController
   class ApplicationController < ActionController::Base

actionpack/test/controller/rack_test.rb

 require 'abstract_unit'
-require 'action_controller/rack_process'
 
 class BaseRackTest < Test::Unit::TestCase
   def setup

actionpack/test/controller/request_test.rb

 require 'abstract_unit'
-require 'action_controller/integration'
 
 class RequestTest < ActiveSupport::TestCase
   def setup

actionpack/test/controller/routing_test.rb

 require 'abstract_unit'
 require 'controller/fake_controllers'
-require 'action_controller/routing'
 
 class MilestonesController < ActionController::Base
   def index() head :ok end

actionpack/test/controller/session/cookie_store_test.rb

 require 'abstract_unit'
-require 'action_controller/cgi_process'
-require 'action_controller/cgi_ext'
-
 require 'stringio'
 
 

actionpack/test/controller/session/mem_cache_store_test.rb

 require 'abstract_unit'
-require 'action_controller/cgi_process'
-require 'action_controller/cgi_ext'
-
 
 class CGI::Session
   def cache