public function manageAction()
 {
     require_once 'PEAR.php';
     require_once 'Archive/Tar.php';
     // Get built packages
     $builtPackages = array();
     $builtPackageFiles = array();
     foreach (scandir($this->_outputPath) as $file) {
         $path = $this->_outputPath . '/' . $file;
         if (!is_file($path)) {
             continue;
         }
         if (substr($file, -4) !== '.tar') {
             continue;
         }
         // Read package.json
         $archive = new Archive_Tar($path);
         $string = $archive->extractInString('package.json');
         if ($string) {
             $package = new Engine_Package_Manifest();
             $parser = Engine_Package_Manifest_Parser::factory('package.json');
             $package->fromArray($parser->fromString($string));
         } else {
             $package = null;
         }
         $builtPackages[] = $package;
         $builtPackageFiles[] = $path;
     }
     $this->view->packages = $builtPackages;
     $this->view->packageFiles = $builtPackageFiles;
 }