/**
* Minifies CSS and JS files.
*
*/
public function process()
{
// Get remove important comments option
$removeComments = (int) Mage::getConfig()->getNode('apptrian_minify/minify_css_js/remove_comments', 'default');
foreach ($this->getPaths() as $path) {
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::FOLLOW_SYMLINKS));
foreach ($iterator as $filename => $file) {
if ($file->isFile() && preg_match('/^.+\\.(css|js)$/i', $file->getFilename())) {
$filePath = $file->getRealPath();
if (!is_writable($filePath)) {
Mage::log('Minification failed for ' . $filePath . ' File is not writable.');
continue;
}
//This is available from php v5.3.6
//$ext = $file->getExtension();
// Using this for compatibility
$ext = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
$optimized = '';
$unoptimized = file_get_contents($filePath);
// If it is 0 byte file or cannot be read
if (!$unoptimized) {
Mage::log('File ' . $filePath . ' cannot be read.');
continue;
}
// CSS files
if ($ext == 'css') {
if ($removeComments == 1) {
$optimized = Minify_CSS::minify($unoptimized, array('preserveComments' => false));
} else {
$optimized = Minify_CSS::minify($unoptimized);
}
// JS files
} else {
if ($removeComments == 1) {
$optimized = JSMinMax::minify($unoptimized);
} else {
$optimized = JSMin::minify($unoptimized);
}
}
// If optimization failed
if (!$optimized) {
Mage::log('File ' . $filePath . ' was not minified.');
continue;
}
if (file_put_contents($filePath, $optimized, LOCK_EX) === false) {
Mage::log('Minification failed for ' . $filePath);
}
}
}
}
}
/**
* Minify Javascript.
*
* @param string $js Javascript to be minified
*
* @return string
*/
public static function minify($js)
{
$jsmin = new JSMinMax($js);
return $jsmin->min();
}
