Add therubyracer gem commented in default Gemfile

1 files changed, 14 insertions, 2 deletions

diff --git a/railties/lib/rails/generators/app_base.rb b/railties/lib/rails/generators/app_base.rb
index 046b8f3925..d3420a6a3c 100644
--- a/railties/lib/rails/generators/app_base.rb
+++ b/railties/lib/rails/generators/app_base.rb
@@ -195,7 +195,9 @@ module Rails
             group :assets do
               gem 'sass-rails',   :git => 'https://github.com/rails/sass-rails.git'
               gem 'coffee-rails', :git => 'https://github.com/rails/coffee-rails.git'
-              #{"gem 'therubyrhino'\n" if defined?(JRUBY_VERSION)}
+
+              # See https://github.com/sstephenson/execjs#readme for more supported runtimes
+              #{javascript_runtime_gemfile_entry}
               gem 'uglifier', '>= 1.0.3'
             end
           GEMFILE
@@ -206,7 +208,9 @@ module Rails
             group :assets do
               gem 'sass-rails',   '~> 4.0.0.beta'
               gem 'coffee-rails', '~> 4.0.0.beta'
-              #{"gem 'therubyrhino'\n" if defined?(JRUBY_VERSION)}
+
+              # See https://github.com/sstephenson/execjs#readme for more supported runtimes
+              #{javascript_runtime_gemfile_entry}
               gem 'uglifier', '>= 1.0.3'
             end
           GEMFILE
@@ -219,6 +223,14 @@ module Rails
         "gem '#{options[:javascript]}-rails'" unless options[:skip_javascript]
       end
 
+      def javascript_runtime_gemfile_entry
+        if defined?(JRUBY_VERSION)
+          "gem 'therubyrhino'\n"
+        else
+          "# gem 'therubyracer'\n"
+        end
+      end
+
       def bundle_command(command)
         say_status :run, "bundle #{command}"