/**
* Minify Javascript.
*
* @param string $js Javascript to be minified
* @return string
*/
public static function minify($js)
{
$jsmin = new JSmin($js);
return $jsmin->min();
}
protected function _regenerateAssets()
{
$this->header('Regenerating assets');
$version_file = APP_ROOT . 'app/ASSETSVERSION';
$assetsversion = (int) file_get_contents($version_file);
$assetsversion++;
file_put_contents($version_file, $assetsversion);
$assetsfolder = APP_ROOT . 'public/assets/';
$jsfolder = $assetsfolder . 'js/';
foreach (FileUtils::getFolders($jsfolder) as $folder) {
if (preg_match('`^\\.`', $folder)) {
continue;
}
$this->line('Regenerating ' . $folder . ' javascript asset');
$out = '';
foreach (FileUtils::getAllFiles($jsfolder . $folder) as $file) {
$out .= file_get_contents($file) . "\n";
}
if (MODE == 'production') {
$out = JSmin::minify($out);
}
$version = self::getOption('assetsurlrewriting') ? '' : $assetsversion;
file_put_contents(APP_ROOT . 'public/cache/' . $folder . $version . '.js', $out);
}
// css
$cssfolder = $assetsfolder . 'css/';
foreach (FileUtils::getFolders($cssfolder) as $folder) {
if (preg_match('`^\\.`', $folder)) {
continue;
}
$this->line('Regenerating ' . $folder . ' CSS asset');
$out = '';
foreach (FileUtils::getAllFiles($cssfolder . $folder) as $file) {
$out .= file_get_contents($file) . "\n";
}
if (MODE == 'production') {
$out = CSSmin::minify($out);
}
$version = self::getOption('assetsurlrewriting') ? '' : $assetsversion;
file_put_contents(APP_ROOT . 'public/cache/' . $folder . $version . '.css', $out);
}
}
/**
* Extends list of javascript commands to execute
*
* @param string javascript code
*/
public static final function js($js, $del_on_loc = true)
{
if (!is_string($js) || strlen($js) == 0) {
return false;
}
$js = rtrim($js, ';');
if (STRIP_OUTPUT) {
require_once 'libs/minify/JSMin.php';
$js = JSmin::minify($js);
}
$js_def = array($js, $del_on_loc);
if (DEBUG_JS && function_exists('debug_backtrace')) {
$arg = false;
if (version_compare(PHP_VERSION, '5.3.6', '>=')) {
$arg = DEBUG_BACKTRACE_IGNORE_ARGS;
}
$bt = debug_backtrace($arg);
array_shift($bt);
// remove first, because it's this function
$debug_str = '';
$limit = (int) DEBUG_JS;
while ($limit--) {
$x = array_shift($bt);
if (!$x) {
break;
}
$file =& $x['file'];
$line =& $x['line'];
$func =& $x['function'];
$debug_str .= "{$func} ({$file}:{$line})";
if ($limit) {
$debug_str .= ' <-- ';
}
}
$js_def[] = $debug_str;
}
self::$jses[] = $js_def;
return true;
}
protected static function _removeScriptCB($m)
{
$openScript = $m[1];
$js = $m[2];
// remove HTML comments (and ending "//" if present)
$js = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/', '', $js);
// remove CDATA section markers
$js = self::_removeCdata($js);
// minify
$jsmin = new JSmin($js);
$js = $jsmin->min();
return self::_reservePlace(self::_needsCdata($js) ? "{$openScript}/*<![CDATA[*/{$js}/*]]>*/</script>" : "{$openScript}{$js}</script>");
}
/**
* Minify the JavaScript
*
* @param string $content
*
* @return string
*/
public function minifyJs($content)
{
return \JSmin::minify($content);
}