```ruby
if CompassRails.rails4?
  module Sprockets
    class SassTemplate < Tilt::Template
      def evaluate(context, locals, &block)
        # Use custom importer that knows about Sprockets Caching
        cache_store = SassCacheStore.new(context.environment)
        paths  = context.environment.paths.map { |path| SassImporter.new(context, path) }
        paths += ::Rails.application.config.sass.load_paths

        options = {
          :filename => eval_file,
          :line => line,
          :syntax => syntax,
          :cache_store => cache_store,
          :importer => SassImporter.new(context, context.pathname),
          :load_paths => paths,
          :sprockets => {
            :context => context,
            :environment => context.environment
          }
        }

        ::Sass::Engine.new(data, options).render
      rescue ::Sass::SyntaxError => e
        # Annotates exception message with parse line number
        context.__LINE__ = e.sass_backtrace.first[:line]
        raise e
      end
    end
  end
else
  require 'sprockets/static_compiler'
  module Sprockets
    class StaticCompiler
      cattr_accessor :generated_sprites
      self.generated_sprites = {}
      def write_manifest_with_sprites(manifest)
        write_manifest_without_sprites(manifest.merge(self.class.generated_sprites))
      end
      alias_method_chain :write_manifest, :sprites
    end
  end
end

```

Apply 'classic' sass config setting for generating line comments
user
```ruby
if CompassRails.rails4?
  module Sprockets
    class SassTemplate < Tilt::Template
      def evaluate(context, locals, &block)
        # Use custom importer that knows about Sprockets Caching
        cache_store = SassCacheStore.new(context.environment)
        paths  = context.environment.paths.map { |path| SassImporter.new(context, path) }
        paths += ::Rails.application.config.sass.load_paths

        options = {
          :filename => eval_file,
          :line => line,
          :syntax => syntax,
          :line_comments => ::Rails.application.config.sass.line_comments,
          :cache_store => cache_store,
          :importer => SassImporter.new(context, context.pathname),
          :load_paths => paths,
          :sprockets => {
            :context => context,
            :environment => context.environment
          }
        }

        ::Sass::Engine.new(data, options).render
      rescue ::Sass::SyntaxError => e
        # Annotates exception message with parse line number
        context.__LINE__ = e.sass_backtrace.first[:line]
        raise e
      end
    end
  end
else
  require 'sprockets/static_compiler'
  module Sprockets
    class StaticCompiler
      cattr_accessor :generated_sprites
      self.generated_sprites = {}
      def write_manifest_with_sprites(manifest)
        write_manifest_without_sprites(manifest.merge(self.class.generated_sprites))
      end
      alias_method_chain :write_manifest, :sprites
    end
  end
end

```
assistant