module Sass::Plugin

def stylesheet_needs_update?(name)
  if !File.exists?(css_filename(name))
    return true
  else
    css_mtime = File.mtime(css_filename(name))
    File.mtime(template_filename(name)) > css_mtime ||
      dependencies(template_filename(name)).any?(&dependency_updated?(css_mtime))
  end
end