public function index()
    {
        // set up logging to email
        $this->log = Log::getMonolog();
        if ($to = config('auto-deploy.notify')) {
            $domain = parse_url(config('app.url'), PHP_URL_HOST);
            $msg = \Swift_Message::newInstance('Project Deployed')
                    ->setFrom(["do_not_reply@$domain" => "Laravel Auto-Deploy[$domain]"])
                    ->setTo($to)
                    ->setBody('', 'text/html');
            $handler = new SwiftMailerHandler(Mail::getSwiftMailer(), $msg, Logger::NOTICE);
            $handler->setFormatter(new HtmlFormatter());
            $this->log->pushHandler($handler);
        }

        // check to see if we should execute this event
        if (in_array($this->origin->event(), array_keys(config("auto-deploy.{$this->origin->name}")))) {
            // get the parameters for the event we're handling
            $configKey = "auto-deploy.{$this->origin->name}.{$this->origin->event()}";
            $this->webroot = config("$configKey.webroot");
            $this->installDir = dirname($this->webroot).'/'.date('Y-m-d').'_'.$this->commitId;
            $steps = config("$configKey.steps");

            // execute the configured steps
            $this->result = [
                'Commit_ID' => $this->commitId,
                'Timestamp' => date('r'),
                'output' => '',
            ];
            $whitelist = ['backupDatabase','pull','copyEnv','composer','npm','migrate','seed','deploy'];
            foreach ($steps as $step) {
                if (in_array($step, $whitelist) && !$this->{$step}()) {
                    $this->log->error('Deploy failed.', $this->result);

                    return;
                }
            }
            $this->log->notice('Deploy succeeded!', $this->result);
        } else {
            $this->log->error('Deploy failed.', ['Reason' => 'This event was not configured.']);
        }
    }