config.assets.enabled is now true by default

railties/CHANGELOG.md

@@ -1,5 +1,11 @@
 ## Rails 4.0.0 (unreleased) ##
 
+*   config.assets.enabled is now true by default. If you're upgrading from a Rails 3.x app 
+    that does not use the asset pipeline, you'll be required to add `config.assets.enabled = false`
+    to your application.rb. If you don't want the asset pipeline on a new app use --skip-sprockets
+    
+    *DHH*
+
 *   Environment name can be a start substring of the default environment names
     (production, development, test). For example: tes, pro, prod, dev, devel.
     Fix #8628.

railties/lib/rails/application/configuration.rb

@@ -48,12 +48,12 @@ def initialize(*)
         @secret_key_base               = nil
 
         @assets = ActiveSupport::OrderedOptions.new
-        @assets.enabled                  = false
+        @assets.enabled                  = true
         @assets.paths                    = []
         @assets.precompile               = [ Proc.new { |path, fn| fn =~ /app\/assets/ && !%w(.js .css).include?(File.extname(path)) },
                                              /(?:\/|\\|\A)application\.(css|js)$/ ]
         @assets.prefix                   = "/assets"
-        @assets.version                  = ''
+        @assets.version                  = '1.0'
         @assets.debug                    = false
         @assets.compile                  = true
         @assets.digest                   = false

railties/lib/rails/generators/rails/app/templates/config/application.rb

@@ -31,12 +31,9 @@ class Application < Rails::Application
     # like if you have constraints or database-specific column types.
     # config.active_record.schema_format = :sql
 
-<% unless  options.skip_sprockets? -%>
-    # Enable the asset pipeline.
-    config.assets.enabled = true
-
-    # Version of your assets, change this if you want to expire all your assets.
-    config.assets.version = '1.0'
+<% if  options.skip_sprockets? -%>
+    # Disable the asset pipeline.
+    config.assets.enabled = false
 <% end  -%>
   end
 end

railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt

@@ -32,6 +32,9 @@
 
   # Generate digests for assets URLs.
   config.assets.digest = true
+
+  # Version of your assets, change this if you want to expire all your assets.
+  config.assets.version = '1.0'
   <%- end -%>
 
   # Specifies the header that your server uses for sending files.

railties/test/generators/app_generator_test.rb

@@ -56,7 +56,6 @@ def test_assets
     assert_file "app/views/layouts/application.html.erb", /stylesheet_link_tag\s+"application"/
     assert_file "app/views/layouts/application.html.erb", /javascript_include_tag\s+"application"/
     assert_file "app/assets/stylesheets/application.css"
-    assert_file "config/application.rb", /config\.assets\.enabled = true/
   end
 
   def test_invalid_application_name_raises_an_error