Added rake rails:update:application_controller to renamed application…

….rb to application_controller.rb -- included in rake rails:update so upgrading to 2.3 will automatically trigger it [#1439 state:committed] (kastner)

railties/CHANGELOG

@@ -1,5 +1,7 @@
 *2.3.0 [Edge]*
 
+* Added rake rails:update:application_controller to renamed application.rb to application_controller.rb -- included in rake rails:update so upgrading to 2.3 will automatically trigger it #1439 [kastner]
+
 * Added Rails.backtrace_cleaner as an accessor for the Rails::BacktraceCleaner instance used by the framework to cut down on backtrace noise and config/initializers/backtrace_silencers.rb to add your own (or turn them all off) [DHH]
 
 * Switch from Test::Unit::TestCase to ActiveSupport::TestCase.  [Jeremy Kemper]

railties/lib/tasks/framework.rake

@@ -78,7 +78,7 @@ namespace :rails do
   end
 
   desc "Update both configs, scripts and public/javascripts from Rails"
-  task :update => [ "update:scripts", "update:javascripts", "update:configs" ]
+  task :update => [ "update:scripts", "update:javascripts", "update:configs", "update:application_controller" ]
 
   namespace :update do
     desc "Add new scripts to the application script/ directory"
@@ -114,5 +114,15 @@ namespace :rails do
       require 'railties_path'  
       FileUtils.cp(RAILTIES_PATH + '/environments/boot.rb', RAILS_ROOT + '/config/boot.rb')
     end
+
+    desc "Rename application.rb to application_controller.rb"
+    task :application_controller do
+      old_style = RAILS_ROOT + '/app/controllers/application.rb'
+      new_style = RAILS_ROOT + '/app/controllers/application_controller.rb'
+      if File.exists?(old_style) && !File.exists?(new_style)
+        FileUtils.mv(old_style, new_style)
+        puts "#{old_style} has been renamed to #{new_style}, update your SCM as necessary"
+      end
+    end
   end
 end