JezK
Edit File: engines.rb
require 'sprockets/legacy_tilt_processor' require 'sprockets/utils' module Sprockets # `Engines` provides a global and `Environment` instance registry. # # An engine is a type of processor that is bound to a filename # extension. `application.js.coffee` indicates that the # `CoffeeScriptProcessor` engine will be ran on the file. # # Extensions can be stacked and will be evaulated from right to # left. `application.js.coffee.erb` will first run `ERBProcessor` # then `CoffeeScriptProcessor`. # # All `Engine`s must follow the `Template` interface. It is # recommended to subclass `Template`. # # Its recommended that you register engine changes on your local # `Environment` instance. # # environment.register_engine '.foo', FooProcessor # # The global registry is exposed for plugins to register themselves. # # Sprockets.register_engine '.sass', SassProcessor # module Engines include Utils # Returns a `Hash` of `Engine`s registered on the `Environment`. # If an `ext` argument is supplied, the `Engine` associated with # that extension will be returned. # # environment.engines # # => {".coffee" => CoffeeScriptProcessor, ".sass" => SassProcessor, ...} # def engines config[:engines] end # Internal: Returns a `Hash` of engine extensions to mime types. # # # => { '.coffee' => 'application/javascript' } def engine_mime_types config[:engine_mime_types] end # Registers a new Engine `klass` for `ext`. If the `ext` already # has an engine registered, it will be overridden. # # environment.register_engine '.coffee', CoffeeScriptProcessor # def register_engine(ext, klass, options = {}) unless options[:silence_deprecation] msg = <<-MSG Sprockets method `register_engine` is deprecated. Please register a mime type using `register_mime_type` then use `register_compressor` or `register_transformer`. https://github.com/rails/sprockets/blob/master/guides/extending_sprockets.md#supporting-all-versions-of-sprockets-in-processors MSG Deprecation.new([caller.first]).warn(msg) end ext = Sprockets::Utils.normalize_extension(ext) self.computed_config = {} if klass.respond_to?(:call) processor = klass self.config = hash_reassoc(config, :engines) do |engines| engines.merge(ext => klass) end if options[:mime_type] self.config = hash_reassoc(config, :engine_mime_types) do |mime_types| mime_types.merge(ext.to_s => options[:mime_type]) end end else processor = LegacyTiltProcessor.new(klass) self.config = hash_reassoc(config, :engines) do |engines| engines.merge(ext => processor) end if klass.respond_to?(:default_mime_type) && klass.default_mime_type self.config = hash_reassoc(config, :engine_mime_types) do |mime_types| mime_types.merge(ext.to_s => klass.default_mime_type) end end end end end end