# File lib/sass.rb, line 82 def self.compile_file(filename, *args) options = args.last.is_a?(Hash) ? args.pop : {} css_filename = args.shift result = Sass::Engine.for_file(filename, options).render if css_filename options[:css_filename] ||= css_filename open(css_filename, "w") {|css_file| css_file.write(result)} nil else result end end