ExtensionCommandController.php

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<?php
namespace TYPO3\CMS\Extensionmanager\Command;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Core\Core\Bootstrap;
use TYPO3\CMS\Core\Core\ClassLoadingInformation;
use TYPO3\CMS\Extbase\Mvc\Controller\CommandController;

class ExtensionCommandController extends CommandController
{
    protected $requestAdminPermissions = true;

    protected $signalSlotDispatcher;

    public function injectSignalSlotDispatcher(\TYPO3\CMS\Extbase\SignalSlot\Dispatcher $signalSlotDispatcher)
    {
        $this->signalSlotDispatcher = $signalSlotDispatcher;
    }

    public function installCommand($extensionKey)
    {
        $this->emitPackagesMayHaveChangedSignal();

        $service = $this->objectManager->get(\TYPO3\CMS\Extensionmanager\Utility\InstallUtility::class);
        $service->install($extensionKey);
    }

    public function uninstallCommand($extensionKey)
    {
        $service = $this->objectManager->get(\TYPO3\CMS\Extensionmanager\Utility\InstallUtility::class);
        $service->uninstall($extensionKey);
    }

    public function dumpClassLoadingInformationCommand()
    {
        if (Bootstrap::usesComposerClassLoading()) {
            $this->output->outputLine('<error>Class loading information is managed by composer. Use "composer dump-autoload" command to update the information.</error>');
            $this->quit(1);
        } else {
            ClassLoadingInformation::dumpClassLoadingInformation();
            $this->output->outputLine('Class Loading information has been updated.');
        }
    }

    protected function emitPackagesMayHaveChangedSignal()
    {
        $this->signalSlotDispatcher->dispatch('PackageManagement', 'packagesMayHaveChanged');
    }
}