class Sprockets::UglifierCompressor

Public: Uglifier/Uglify compressor.

To accept the default options

environment.register_bundle_processor 'application/javascript',
  Sprockets::UglifierCompressor

Or to pass options to the Uglifier class.

environment.register_bundle_processor 'application/javascript',
  Sprockets::UglifierCompressor.new(comments: :copyright)

Constants

VERSION

Attributes

cache_key[R]

Public Class Methods

cache_key() click to toggle source
# File lib/sprockets/uglifier_compressor.rb, line 33
def self.cache_key
  instance.cache_key
end
call(input) click to toggle source
# File lib/sprockets/uglifier_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 UglifierCompressor object.

# File lib/sprockets/uglifier_compressor.rb, line 25
def self.instance
  @instance ||= new
end
new(options = {}) click to toggle source
# File lib/sprockets/uglifier_compressor.rb, line 39
def initialize(options = {})
  options[:comments] ||= :none

  @options = options
  @cache_key = "#{self.class.name}:#{Autoload::Uglifier::VERSION}:#{VERSION}:#{DigestUtils.digest(options)}".freeze
end

Public Instance Methods

call(input) click to toggle source
# File lib/sprockets/uglifier_compressor.rb, line 46
def call(input)
  case Autoload::Uglifier::VERSION.to_i
  when 1
    raise "uglifier 1.x is no longer supported, please upgrade to 2.x or newer"
  when 2
    input_options = { source_filename: input[:filename] }
  else
    input_options = { source_map: { filename: input[:filename] } }
  end

  uglifier = Autoload::Uglifier.new(@options.merge(input_options))

  js, map = uglifier.compile_with_map(input[:data])

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

  { data: js, map: map }
end