class Condenser::SassTransformer
Transformer 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
Attributes
cache_key[R]
options[RW]
Public Class Methods
cache_key()
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 36 def self.cache_key instance.cache_key end
call(environment, input)
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 32 def self.call(environment, input) instance.call(environment, input) end
instance()
click to toggle source
Public: Return singleton instance with default options.
Returns SassProcessor object.
# File lib/condenser/transformers/sass_transformer.rb, line 28 def self.instance @instance ||= new end
new(options = {}, &block)
click to toggle source
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.
# File lib/condenser/transformers/sass_transformer.rb, line 52 def initialize(options = {}, &block) @options = options @cache_version = options[:cache_version] # @cache_key = "#{self.class.name}:#{VERSION}:#{Autoload::Sass::VERSION}:#{@cache_version}".freeze @importer_class = options[:importer] || Condenser::SassTransformer::Importer @sass_config = options[:sass_config] || {} @functions = Module.new do include Functions include options[:functions] if options[:functions] class_eval(&block) if block_given? end # puts @functions.method(:asset_path).source_location end
setup(environment)
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 21 def self.setup(environment) require "sassc" unless defined?(::SassC::Engine) end
syntax()
click to toggle source
Internal: Defines default sass syntax to use. Exposed so the ScssProcessor may override it.
# File lib/condenser/transformers/sass_transformer.rb, line 17 def self.syntax :sass end
Public Instance Methods
call(environment, input)
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 67 def call(environment, input) # context = input[:environment].context_class.new(input) engine_options = merge_options({ syntax: self.class.syntax, filename: input[:filename], source_map_file: "#{input[:filename]}.map", source_map_contents: true, # cache_store: Cache.new(environment.cache), load_paths: environment.path, importer: @importer_class, condenser: { context: environment.new_context_class, environment: environment }, asset: input }) engine = SassC::Engine.new(input[:source], engine_options) css = Utils.module_include(SassC::Script::Functions, @functions) do engine.render end css.delete_suffix!("\n/*# sourceMappingURL=#{File.basename(input[:filename])}.map */") # engine.source_map # css = css.delete_suffix!("\n/*# sourceMappingURL= */\n") input[:source] = css # input[:map] = map.to_json({}) end
name()
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 42 def name self.class.name end
Private Instance Methods
build_cache_store(input, version)
click to toggle source
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 Condenser
cache.
# File lib/condenser/transformers/sass_transformer.rb, line 107 def build_cache_store(input, version) CacheStore.new(input[:cache], version) end
merge_options(options)
click to toggle source
# File lib/condenser/transformers/sass_transformer.rb, line 111 def merge_options(options) defaults = @sass_config.dup if load_paths = defaults.delete(:load_paths) options[:load_paths] += load_paths end options.merge!(defaults) options end