public static function checkIfNeedCompile($source, $dest)
{
$needCompile = !$dest->readable;
$imports = File::scanFiles($source->dir, '\\.js$', true);
if (!$needCompile and $imports) {
foreach ($imports as $file) {
if ($file->modified > $dest->modified) {
$needCompile = true;
break;
}
}
}
return $needCompile;
}