public function generateJSFile()
{
if (!is_file(dirname(__FILE__) . '/cache/javascript.php')) {
$js = $this->generateJS();
if (strlen($js) > 0) {
include_once dirname(__FILE__) . '/classes/minify.php';
$minifyJS = new MinifyJS($js);
$minifyJS->minify(dirname(__FILE__) . '/cache/javascript.php', $stripComments = true, $stripWhitespace = true);
} else {
$fhandle = fopen(dirname(__FILE__) . '/cache/javascript.php', "w");
fclose($fhandle);
}
}
return DIR_WS_HTTP_CATALOG . DIR_WS_MODULES . 'checkout/cache/javascript.php';
}
/**
* Minify a javascript-file
*
* @param string $file The file to be minified.
* @return string
*/
private function minifyJS($file)
{
// create unique filename
$fileName = md5($file) . '.js';
$finalURL = FRONTEND_CACHE_URL . '/minified_js/' . $fileName;
$finalPath = FRONTEND_CACHE_PATH . '/minified_js/' . $fileName;
// check that file does not yet exist or has been updated already
if (!SpoonFile::exists($finalPath) || filemtime(PATH_WWW . $file) > filemtime($finalPath)) {
// create directory if it does not exist
if (!SpoonDirectory::exists(dirname($finalPath))) {
SpoonDirectory::create(dirname($finalPath));
}
// minify the file
require_once PATH_LIBRARY . '/external/minify.php';
$js = new MinifyJS(PATH_WWW . $file);
$js->minify($finalPath);
}
return $finalURL;
}