Plugin.php

<?php
namespace TracToGitlab;

use Config;
use Gitlab;
use GuzzleHttp;
use Http;
use Parsedown;
use Pimple;

abstract class Plugin extends \StudIPPlugin
{
    private $container = null;

    public function getDIContainer()
    {
        if ($this->container === null) {
            require_once $this->getPluginPath() . '/vendor/autoload.php';

            $this->container = new Pimple\Container();

            $this->container['trac'] = function () {
                return new TracLookup(Config::get()->TRAC2GITLAB_TRAC_URL);
            };

            $this->container['gitlab'] = function () {
                $builder = new Gitlab\HttpClient\Builder(
                    new GuzzleHttp\Client(),
                    new Http\Factory\Guzzle\RequestFactory(),
                    new Http\Factory\Guzzle\StreamFactory(),
                    new Http\Factory\Guzzle\UriFactory()
                );

                $client = new Gitlab\Client($builder);
                $client->setUrl(Config::get()->TRAC2GITLAB_GITLAB_URL);
                $client->authenticate(Config::get()->TRAC2GITLAB_GITLAB_TOKEN, Gitlab\Client::AUTH_HTTP_TOKEN);
                return $client;
            };

            $this->container['gitlabProjectId'] = function () {
                return Config::get()->TRAC2GITLAB_GITLAB_PROJECT_ID;
            };

            $this->container['gitlabPager'] = function ($c) {
                return new Gitlab\ResultPager($c['gitlab']);
            };

            $this->container['parsedown'] = function () {
                $parsedown = new Parsedown();
                $parsedown->setSafeMode(true);
                return $parsedown;
            };
        }
        return $this->container;
    }
}