/**
  * Install public/private repository using Git clone.
  *
  * @return boolean True if successful
  * @throws Cake\Core\Exception\Exception
  */
 protected function _gitInstall()
 {
     Log::Debug("Git installing " . $this->options['framework_human']);
     if (!$this->Execute->gitClone($this->options['source'], $this->options['path'])) {
         throw new Exception("Error git cloning.");
     }
     return true;
 }