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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Victor Dubiniuk <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Copyright (c) 2015, ownCloud, Inc.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license AGPL-3.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This code is free software: you can redistribute it and/or modify  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * it under the terms of the GNU Affero General Public License, version 3,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * as published by the Free Software Foundation.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This program is distributed in the hope that it will be useful,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * but WITHOUT ANY WARRANTY; without even the implied warranty of  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * GNU Affero General Public License for more details.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * You should have received a copy of the GNU Affero General Public License, version 3,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * along with this program.  If not, see <http://www.gnu.org/licenses/>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Owncloud\Updater\Command;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Console\Input\InputArgument;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Console\Input\InputInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Console\Input\InputOption;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Console\Output\OutputInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Console\Question\ChoiceQuestion;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use GuzzleHttp\Event\ProgressEvent;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Owncloud\Updater\Utils\Fetcher;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Owncloud\Updater\Utils\ConfigReader;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \Owncloud\Updater\Controller\DownloadController;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class DetectCommand extends Command { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var Fetcher $fetcher  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $fetcher;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var ConfigReader $configReader  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $configReader;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $output;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Constructor  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param Fetcher $fetcher  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param ConfigReader $configReader  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function __construct(Fetcher $fetcher, ConfigReader $configReader){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		parent::__construct();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->fetcher = $fetcher;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->configReader = $configReader;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	protected function configure(){ | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$this  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				->setName('upgrade:detect') | 
            
            
                                                                        
                            
            
                                    
            
            
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                				->setDescription('Detect | 
            
            
                                                                        
                            
            
                                    
            
            
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                - 1. currently existing code,   | 
            
            
                                                                        
                            
            
                                    
            
            
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                - 2. version in config.php,   | 
            
            
                                                                        
                            
            
                                    
            
            
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                - 3. online available verison.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                (ASK) what to do? (download, upgrade, abort, …)')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				->addOption(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                						'exit-if-none', null, InputOption::VALUE_NONE, 'exit with non-zero status code if new version is not found'  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				->addOption(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                						'only-check', null, InputOption::VALUE_NONE, 'Only check if update is available'  | 
            
            
                                                                        
                            
            
                                    
            
            
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                				)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function execute(InputInterface $input, OutputInterface $output){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$registry = $this->container['utils.registry'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$registry->set('feed', false); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$locator = $this->container['utils.locator'];  | 
            
                            
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                		$fsHelper = $this->container['utils.filesystemhelper'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$downloadController = new DownloadController($this->fetcher, $registry, $fsHelper);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$currentVersion = $this->configReader->getByPath('system.version'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if (!strlen($currentVersion)){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				throw new \UnexpectedValueException('Could not detect installed version.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$this->getApplication()->getLogger()->info('ownCloud ' . $currentVersion . ' found'); | 
            
                            
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                			$output->writeln('Current version is ' . $currentVersion); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$feedData = $downloadController->checkFeed();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if (!$feedData['success']){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				// Network errors, etc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$output->writeln("Can't fetch feed."); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$output->writeln($feedData['exception']->getMessage());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$this->getApplication()->logException($feedData['exception']);  | 
            
                            
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                				// Return a number to stop the queue  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				return $input->getOption('exit-if-none') ? 4 : null; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$feed = $feedData['data']['feed'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if (!$feed->isValid()){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				// Feed is empty. Means there are no updates  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$output->writeln('No updates found online.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				return $input->getOption('exit-if-none') ? 4 : null; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$registry->set('feed', $feed); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$output->writeln($feed->getVersionString() . ' is found online');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    117
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                			if ($input->getOption('only-check')){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    118
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                				return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    120
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                    121
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                			$action = $this->ask($input, $output);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ($action === 'abort'){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    123
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                				$output->writeln('Exiting on user command.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    124
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                				return 128;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    127
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                			$this->output = $output;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    128
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                			$packageData = $downloadController->downloadOwncloud([$this, 'progress']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    129
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                			//Empty line, in order not to overwrite the progress message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                                     | 
                
                 | 
                			$this->output->writeln(''); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                			if (!$packageData['success']){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                				$registry->set('feed', null); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                				throw $packageData['exception'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                	  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                			if ($action === 'download'){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                				$output->writeln('Downloading has been completed. Exiting.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                				return 64;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                		} catch (\Exception $e){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                			$this->getApplication()->getLogger()->error($e->getMessage());  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                			return 2;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                	 * Ask what to do  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                	 * @param InputInterface $input  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                	 * @param OutputInterface $output  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                	 * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                	public function ask(InputInterface $input, OutputInterface $output){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                		$helper = $this->getHelper('question'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                		$question = new ChoiceQuestion(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                			'What would you do next?',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                			['download', 'upgrade', 'abort'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                			'1'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                		);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                		$action = $helper->ask($input, $output, $question);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                		return $action;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                	 * Callback to output download progress  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                	 * @param ProgressEvent $e  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                	public function progress(ProgressEvent $e){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                		if ($e->downloadSize){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                			$percent = intval(100 * $e->downloaded / $e->downloadSize );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                			$percentString = $percent . '%';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                			$this->output->write( 'Downloaded ' . $percentString . ' (' . $e->downloaded . ' of ' . $e->downloadSize . ")\r"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.