def stylesheet_link_tag(*sources)
options = sources.extract_options!.stringify_keys
cache = options.delete("cache")
if ActionController::Base.perform_caching && cache
joined_stylesheet_name = (cache == true ? "all" : cache) + ".css"
joined_stylesheet_path = File.join(STYLESHEETS_DIR, joined_stylesheet_name)
write_asset_file_contents(joined_stylesheet_path, compute_stylesheet_paths(sources))
stylesheet_tag(joined_stylesheet_name, options)
else
expand_stylesheet_sources(sources).collect { |source| stylesheet_tag(source, options) }.join("\n")
end
end