Extension Command to install activated TYPO3 Extensions

ExtensionCommandController.php

<?php
namespace Syzygy\SyzygyBase\Command;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2015 Sascha Egerer <sascha.egerer@gmail.com>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *  A copy is found in the text file GPL.txt and important notices to the license
 *  from the author is found in LICENSE.txt distributed with these scripts.
 *
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use Helhum\Typo3Console\Mvc\Controller\CommandController;
use TYPO3\CMS\Core\Package\MetaData;

/**
 * Extension related commands
 */
class ExtensionCommandController extends CommandController {

	/**
	 * @var \TYPO3\CMS\Core\Package\PackageManager
	 * @inject
	 */
	protected $packageManager;

	/**
	 * Install all extensions that are listed in "active-packages" by using the InstallUtility.
	 * This will not only install the extension but also do database updates and folder updates.
	 */
	public function installActivatedPackagesCommand() {
		$activePackages = $this->getPackagesFromRootComposerFile();
		$service = $this->objectManager->get(\TYPO3\CMS\Extensionmanager\Utility\InstallUtility::class);
		/** @var \TYPO3\CMS\Core\Package\PackageInterface $package */
		foreach ($this->packageManager->getAvailablePackages() as $package) {
			if(in_array($package->getPackageKey(), $activePackages)) {
				$this->outputLine('Installing Package: ' . $package->getPackageKey());
				$service->install($package->getPackageKey());
			}
		}
	}

	/**
	 * @return string[] Array of packages keys in root composer.json
	 */
	protected function getPackagesFromRootComposerFile() {
		if (!file_exists(PATH_site . 'composer.json')) {
			$this->outputLine('No composer.json found in project root');
			$this->sendAndExit(1);
		}

		$composerData = json_decode(file_get_contents(PATH_site . 'composer.json'));

		if (!is_object($composerData)) {
			$this->outputLine('composer.json seems to be invalid');
			$this->sendAndExit(1);
		}

		$activePackageKey = 'active-packages';
		if (!isset($composerData->extra->{$activePackageKey}) || !is_array($composerData->extra->{$activePackageKey})) {
			$this->outputLine('No packages found to activate!');
			$this->sendAndExit();
		}

		return $composerData->extra->{$activePackageKey};
	}
}