Generate rackup dispatcher with rails:update:generate_dispatchers

railties/config.ru

@@ -1,17 +0,0 @@
-# Rackup Configuration
-#
-# Start Rails mongrel server with rackup
-# $ rackup -p 3000 config.ru
-#
-# Start server with webrick (or any compatible Rack server) instead
-# $ rackup -p 3000 -s webrick config.ru
-
-# Require your environment file to bootstrap Rails
-require File.dirname(__FILE__) + '/config/environment'
-
-# Static server middleware
-# You can remove this extra check if you use an asset server
-use Rails::Rack::Static
-
-# Dispatch the request
-run ActionController::Dispatcher.new

railties/dispatches/config.ru

@@ -0,0 +1,7 @@
+# Rack Dispatcher
+
+# Require your environment file to bootstrap Rails
+require File.dirname(__FILE__) + '/config/environment'
+
+# Dispatch the request
+run ActionController::Dispatcher.new

railties/lib/commands/server.rb

@@ -65,7 +65,6 @@ end
 
 ENV["RAILS_ENV"] = options[:environment]
 RAILS_ENV.replace(options[:environment]) if defined?(RAILS_ENV)
-require RAILS_ROOT + "/config/environment"
 
 if File.exist?(options[:config])
   config = options[:config]
@@ -74,20 +73,23 @@ if File.exist?(options[:config])
     if cfgfile[/^#\\(.*)/]
       opts.parse!($1.split(/\s+/))
     end
-    app = eval("Rack::Builder.new {( " + cfgfile + "\n )}.to_app", nil, config)
+    inner_app = eval("Rack::Builder.new {( " + cfgfile + "\n )}.to_app", nil, config)
   else
     require config
-    app = Object.const_get(File.basename(config, '.rb').capitalize)
+    inner_app = Object.const_get(File.basename(config, '.rb').capitalize)
   end
 else
-  app = Rack::Builder.new {
-    use Rails::Rack::Logger
-    use Rails::Rack::Static
-    use Rails::Rack::Debugger if options[:debugger]
-    run ActionController::Dispatcher.new
-  }.to_app
+  require RAILS_ROOT + "/config/environment"
 end
 
+inner_app = ActionController::Dispatcher.new
+app = Rack::Builder.new {
+  use Rails::Rack::Logger
+  use Rails::Rack::Static
+  use Rails::Rack::Debugger if options[:debugger]
+  run inner_app
+}.to_app
+
 puts "=> Call with -d to detach"
 
 trap(:INT) { exit }

railties/lib/rails_generator/generators/applications/app/app_generator.rb

@@ -197,6 +197,7 @@ class AppGenerator < Rails::Generator::Base
       if options[:with_dispatchers]
         dispatcher_options = { :chmod => 0755, :shebang => options[:shebang] }
 
+        m.file "dispatches/config.ru",     "config.ru"
         m.file "dispatches/dispatch.rb",   "public/dispatch.rb",   dispatcher_options
         m.file "dispatches/dispatch.rb",   "public/dispatch.cgi",  dispatcher_options
         m.file "dispatches/dispatch.fcgi", "public/dispatch.fcgi", dispatcher_options

railties/lib/tasks/framework.rake

@@ -128,6 +128,7 @@ namespace :rails do
     desc "Generate dispatcher files in RAILS_ROOT/public"
     task :generate_dispatchers do
       require 'railties_path'
+      FileUtils.cp(RAILTIES_PATH + '/dispatches/config.ru', RAILS_ROOT + '/config.ru')
       FileUtils.cp(RAILTIES_PATH + '/dispatches/dispatch.fcgi', RAILS_ROOT + '/public/dispatch.fcgi')
       FileUtils.cp(RAILTIES_PATH + '/dispatches/dispatch.rb', RAILS_ROOT + '/public/dispatch.rb')
       FileUtils.cp(RAILTIES_PATH + '/dispatches/dispatch.rb', RAILS_ROOT + '/public/dispatch.cgi')