class Sprockets::SassCompressor

Public: Sass CSS minifier.

To accept the default options

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

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

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

Constants

VERSION

Attributes

cache_key[R]

Public Class Methods

cache_key() click to toggle source
# File lib/sprockets/sass_compressor.rb, line 33
def self.cache_key
  instance.cache_key
end
call(input) click to toggle source
# File lib/sprockets/sass_compressor.rb, line 29
def self.call(input)
  instance.call(input)
end
instance() click to toggle source

Public: Return singleton instance with default options.

Returns SassCompressor object.

# File lib/sprockets/sass_compressor.rb, line 25
def self.instance
  @instance ||= new
end
new(options = {}) click to toggle source
# File lib/sprockets/sass_compressor.rb, line 39
def initialize(options = {})
  @options = {
    syntax: :scss,
    cache: false,
    read_cache: false,
    style: :compressed
  }.merge(options).freeze
  @cache_key = "#{self.class.name}:#{Autoload::Sass::VERSION}:#{VERSION}:#{DigestUtils.digest(options)}".freeze
end

Public Instance Methods

call(input) click to toggle source
# File lib/sprockets/sass_compressor.rb, line 49
def call(input)
  css, map = Autoload::Sass::Engine.new(
    input[:data],
    @options.merge(filename: input[:filename])
  ).render_with_sourcemap('')

  css = css.sub("/*# sourceMappingURL= */\n", '')

  map = SourceMapUtils.format_source_map(JSON.parse(map.to_json(css_uri: '')), input)
  map = SourceMapUtils.combine_source_maps(input[:metadata][:map], map)

  { data: css, map: map }
end