Merge pull request #30693 from yhirano55/refactor_css_scaffold_generator

Refactor Css::Generators::ScaffoldGenerator

railties/lib/rails/generators/css/scaffold/scaffold_generator.rb

@@ -5,13 +5,13 @@
 module Css # :nodoc:
   module Generators # :nodoc:
     class ScaffoldGenerator < Rails::Generators::NamedBase # :nodoc:
+      source_root Rails::Generators::ScaffoldGenerator.source_root
+
       # In order to allow the Sass generators to pick up the default Rails CSS and
       # transform it, we leave it in a standard location for the CSS stylesheet
       # generators to handle. For the simple, default case, just copy it over.
       def copy_stylesheet
-        dir = Rails::Generators::ScaffoldGenerator.source_root
-        file = File.join(dir, "scaffold.css")
-        create_file "app/assets/stylesheets/scaffold.css", File.read(file)
+        copy_file "scaffold.css", "app/assets/stylesheets/scaffold.css"
       end
     end
   end