DNData::inst PHP Method

    public static function inst()
    {
        return Injector::inst()->get('DNData');
    }

 public function perform()
 {
     set_time_limit(0);
     $log = new DeploynautLogFile($this->args['logfile']);
     $projects = DNProject::get()->filter('Name', Convert::raw2sql($this->args['projectName']));
     $project = $projects->first();
     $path = $project->getLocalCVSPath();
     $env = $this->args['env'];
     $log->write('Starting git fetch for project "' . $project->Name . '"');
     // if an alternate user has been configured for clone, run the command as that user
     // @todo Gitonomy doesn't seem to have any way to prefix the command properly, if you
     // set 'sudo -u composer git' as the "command" parameter, it tries to run the whole
     // thing as a single command and fails
     $user = DNData::inst()->getGitUser();
     if (!empty($user)) {
         $command = sprintf('cd %s && sudo -u %s git fetch -p origin +refs/heads/*:refs/heads/* --tags', $path, $user);
         $process = new \Symfony\Component\Process\Process($command);
         $process->setEnv($env);
         $process->setTimeout(3600);
         $process->run();
         if (!$process->isSuccessful()) {
             throw new RuntimeException($process->getErrorOutput());
         }
     } else {
         $repository = new Gitonomy\Git\Repository($path, array('environment_variables' => $env));
         $repository->run('fetch', array('-p', 'origin', '+refs/heads/*:refs/heads/*', '--tags'));
     }
     $log->write('Git fetch is finished');
 }