class Sprockets::SasscCompressor

Public: Sass CSS minifier.

To accept the default options

environment.register_bundle_processor 'text/css',
  Sprockets::SasscCompressor

Or to pass options to the Sass::Engine class.

environment.register_bundle_processor 'text/css',
  Sprockets::SasscCompressor.new({ ... })

Public Class Methods

call(input) click to toggle source
# File lib/sprockets/sassc_compressor.rb, line 26
def self.call(input)
  instance.call(input)
end
instance() click to toggle source

Public: Return singleton instance with default options.

Returns SasscCompressor object.

# File lib/sprockets/sassc_compressor.rb, line 22
def self.instance
  @instance ||= new
end
new(options = {}) click to toggle source
# File lib/sprockets/sassc_compressor.rb, line 30
def initialize(options = {})
  @options = {
    syntax: :scss,
    style: :compressed,
    source_map_contents: false,
    omit_source_map_url: true,
  }.merge(options).freeze
end

Public Instance Methods

call(input) click to toggle source
# File lib/sprockets/sassc_compressor.rb, line 39
def call(input)
  # SassC requires the template to be modifiable
  input_data = input[:data].frozen? ? input[:data].dup : input[:data]
  engine = Autoload::SassC::Engine.new(input_data, @options.merge(filename: input[:filename], source_map_file: "#{input[:filename]}.map")) 
    
  css = engine.render.sub(/^\n^\/\*# sourceMappingURL=.*\*\/$/m, '')

  begin
    map = SourceMapUtils.format_source_map(JSON.parse(engine.source_map), input)
    map = SourceMapUtils.combine_source_maps(input[:metadata][:map], map)
  rescue SassC::NotRenderedError
    map = input[:metadata][:map]
  end

  { data: css, map: map }
end