protected static function compressFiles()
{
ini_set('max_execution_time', 120);
self::$_mincode['js'] = '';
self::$_mincode['css'] = '';
$curl = new CURLRequest();
$css = new CSSCompression();
$css->option('readability', CSSCompression::READ_NONE);
$css->option('mode', self::$_opt['cssLevel']);
foreach (self::$_files as $file) {
$code = $file['data'];
$hash = md5($code);
$cache = self::$_cacheDir . $hash;
if (file_exists($cache) === true) {
self::$_mincode[$file['ext']] .= file_get_contents($cache);
} else {
if (self::$_opt['compressCode'] === false) {
self::$_mincode[$file['ext']] .= $code;
} else {
if ($file['ext'] === 'js') {
if (self::$_opt['useLocalJS'] === false) {
if (strlen($code) / 1000 / 1000 > 1) {
$file = basename($file['path']);
$msg = '%s is bigger than 1000kB,';
$msg .= ' split the code into multiple files or';
$msg .= ' enable local compression for javascript.';
$msg = sprintf($msg, $file);
throw new Exception($msg);
}
$post = array('js_code' => $code, 'compilation_level' => 'SIMPLE_OPTIMIZATIONS', 'output_format' => 'json');
// Workaround to allow multiple output_info in query.
$post = http_build_query($post);
$post .= '&output_info=errors&output_info=compiled_code';
$return = $curl->get('http://closure-compiler.appspot.com/compile', array(CURLOPT_RETURNTRANSFER => true, CURLOPT_POSTFIELDS => $post, CURLOPT_POST => true));
$data = json_decode($return['content'], true);
if (isset($data['errors']) === true || isset($data['serverErrors']) === true) {
$error = $data['errors'][0]['error'];
$file = basename($file['path']);
$line = $data['errors'][0]['lineno'];
$msg = 'Web Service returned %s in %s on line %u.';
$msg = sprintf($msg, $error, $file, $line);
throw new Exception($msg);
} else {
if (isset($data['compiledCode']) === true) {
$code = $data['compiledCode'];
self::$_mincode[$file['ext']] .= $code;
file_put_contents($cache, $code);
} else {
throw new Exception('An unknown error has occured.');
}
}
//end if
}
//end if
} else {
if ($file['ext'] === 'css') {
$code = trim($css->compress($code));
self::$_mincode[$file['ext']] .= $code;
file_put_contents($cache, $code);
}
}
//end if
}
//end if
}
//end if
}
//end foreach
}
