JezK
Edit File: sass_processor.rb
require 'rack/utils' require 'sprockets/autoload' require 'uri' module Sprockets # Processor engine class for the SASS/SCSS compiler. Depends on the `sass` gem. # # For more infomation see: # # https://github.com/sass/sass # https://github.com/rails/sass-rails # class SassProcessor autoload :CacheStore, 'sprockets/sass_cache_store' # Internal: Defines default sass syntax to use. Exposed so the ScssProcessor # may override it. def self.syntax :sass end # Public: Return singleton instance with default options. # # Returns SassProcessor object. def self.instance @instance ||= new end def self.call(input) instance.call(input) end def self.cache_key instance.cache_key end attr_reader :cache_key # Public: Initialize template with custom options. # # options - Hash # cache_version - String custom cache version. Used to force a cache # change after code changes are made to Sass Functions. # def initialize(options = {}, &block) @cache_version = options[:cache_version] @cache_key = "#{self.class.name}:#{VERSION}:#{Autoload::Sass::VERSION}:#{@cache_version}".freeze @functions = Module.new do include Functions include options[:functions] if options[:functions] class_eval(&block) if block_given? end end def call(input) context = input[:environment].context_class.new(input) options = { filename: input[:filename], syntax: self.class.syntax, cache_store: build_cache_store(input, @cache_version), load_paths: input[:environment].paths, sprockets: { context: context, environment: input[:environment], dependencies: context.metadata[:dependencies] } } engine = Autoload::Sass::Engine.new(input[:data], options) css = Utils.module_include(Autoload::Sass::Script::Functions, @functions) do engine.render end # Track all imported files sass_dependencies = Set.new([input[:filename]]) engine.dependencies.map do |dependency| sass_dependencies << dependency.options[:filename] context.metadata[:dependencies] << URIUtils.build_file_digest_uri(dependency.options[:filename]) end context.metadata.merge(data: css, sass_dependencies: sass_dependencies) end # Public: Build the cache store to be used by the Sass engine. # # input - the input hash. # version - the cache version. # # Override this method if you need to use a different cache than the # Sprockets cache. def build_cache_store(input, version) CacheStore.new(input[:cache], version) end private :build_cache_store # Public: Functions injected into Sass context during Sprockets evaluation. # # This module may be extended to add global functionality to all Sprockets # Sass environments. Though, scoping your functions to just your environment # is preferred. # # module Sprockets::SassProcessor::Functions # def asset_path(path, options = {}) # end # end # module Functions # Public: Generate a url for asset path. # # Default implementation is deprecated. Currently defaults to # Context#asset_path. # # Will raise NotImplementedError in the future. Users should provide their # own base implementation. # # Returns a Sass::Script::String. def asset_path(path, options = {}) path = path.value path, _, query, fragment = URI.split(path)[5..8] path = sprockets_context.asset_path(path, options) query = "?#{query}" if query fragment = "##{fragment}" if fragment Autoload::Sass::Script::String.new("#{path}#{query}#{fragment}", :string) end # Public: Generate a asset url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def asset_url(path, options = {}) Autoload::Sass::Script::String.new("url(#{asset_path(path, options).value})") end # Public: Generate url for image path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def image_path(path) asset_path(path, type: :image) end # Public: Generate a image url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def image_url(path) asset_url(path, type: :image) end # Public: Generate url for video path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def video_path(path) asset_path(path, type: :video) end # Public: Generate a video url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def video_url(path) asset_url(path, type: :video) end # Public: Generate url for audio path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def audio_path(path) asset_path(path, type: :audio) end # Public: Generate a audio url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def audio_url(path) asset_url(path, type: :audio) end # Public: Generate url for font path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def font_path(path) asset_path(path, type: :font) end # Public: Generate a font url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def font_url(path) asset_url(path, type: :font) end # Public: Generate url for javascript path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def javascript_path(path) asset_path(path, type: :javascript) end # Public: Generate a javascript url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def javascript_url(path) asset_url(path, type: :javascript) end # Public: Generate url for stylesheet path. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def stylesheet_path(path) asset_path(path, type: :stylesheet) end # Public: Generate a stylesheet url() link. # # path - Sass::Script::String URL path # # Returns a Sass::Script::String. def stylesheet_url(path) asset_url(path, type: :stylesheet) end # Public: Generate a data URI for asset path. # # path - Sass::Script::String logical asset path # # Returns a Sass::Script::String. def asset_data_url(path) url = sprockets_context.asset_data_uri(path.value) Autoload::Sass::Script::String.new("url(" + url + ")") end protected # Public: The Environment. # # Returns Sprockets::Environment. def sprockets_environment options[:sprockets][:environment] end # Public: Mutatable set of dependencies. # # Returns a Set. def sprockets_dependencies options[:sprockets][:dependencies] end # Deprecated: Get the Context instance. Use APIs on # sprockets_environment or sprockets_dependencies directly. # # Returns a Context instance. def sprockets_context options[:sprockets][:context] end end end class ScssProcessor < SassProcessor def self.syntax :scss end end # Deprecated: Use Sprockets::SassProcessor::Functions instead. SassFunctions = SassProcessor::Functions end