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<?php |
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/* |
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* This file is part of the dotfiles project. |
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* |
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* (c) Anthonius Munthi <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Dotfiles\Core\Processor; |
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use Dotfiles\Core\Constant; |
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use Dotfiles\Core\DI\Parameters; |
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use Dotfiles\Core\Event\RestoreEvent; |
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use Dotfiles\Core\Util\BackupManifest; |
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use Dotfiles\Core\Util\Toolkit; |
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use Psr\Log\LoggerInterface; |
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use Symfony\Component\Console\Helper\Table; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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/** |
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* Backing up all related files before restore process. |
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*/ |
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class Backup implements EventSubscriberInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private $backupDir; |
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/** |
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* @var int |
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*/ |
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private $lastVersion = 0; |
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/** |
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* @var LoggerInterface |
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*/ |
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private $logger; |
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/** |
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* @var BackupManifest |
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*/ |
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private $manifest; |
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/** |
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* @var string |
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*/ |
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private $manifestFile; |
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/** |
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* @var OutputInterface |
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*/ |
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private $output; |
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/** |
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* @var Parameters |
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*/ |
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private $parameters; |
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public function __construct( |
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Parameters $parameters, |
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LoggerInterface $logger, |
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OutputInterface $output |
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) { |
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$this->parameters = $parameters; |
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$this->logger = $logger; |
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$this->output = $output; |
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$this->backupDir = $parameters->get('dotfiles.backup_dir').'/var/backup'; |
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$this->manifestFile = $this->backupDir.'/manifest.php'; |
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$this->loadManifest(); |
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} |
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public function getBackupDir() |
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{ |
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return $this->backupDir; |
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} |
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public function getManifest() |
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{ |
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return $this->manifest; |
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} |
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public static function getSubscribedEvents() |
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{ |
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return array( |
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Constant::EVENT_PRE_RESTORE => array('onPreRestore', -255), |
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); |
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} |
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public function info() |
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{ |
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$output = $this->output; |
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if (!is_dir($this->backupDir)) { |
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$output->writeln('No backup created yet'); |
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return; |
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} |
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$table = new Table($output); |
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$table->setHeaders(array('Version', 'Machine', 'Created', 'File')); |
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foreach ($this->manifest as $info) { |
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$table->addRow(array( |
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$info['version'], |
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$info['machine'], |
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$info['created'], |
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$info['file'], |
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)); |
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} |
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$table->render(); |
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} |
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public function onPreRestore(RestoreEvent $event) |
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{ |
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$files = $event->getFiles(); |
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$patches = $event->getPatches(); |
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$affectedFiles = array_merge( |
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array_keys($files), |
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array_keys($patches) |
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); |
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$affectedFiles = array_unique($affectedFiles); |
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$homeDir = $this->parameters->get('dotfiles.home_dir'); |
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$zip = new \ZipArchive(); |
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$time = new \DateTime(); |
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$fileName = $this->backupDir.DIRECTORY_SEPARATOR.$time->format('Y-m-d-H-i-s').'.zip'; |
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$logger = $this->logger; |
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Toolkit::ensureFileDir($fileName); |
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$zip->open($fileName, \ZipArchive::CREATE); |
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$logger->info('created backup in <comment>'.$fileName.'</comment>'); |
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foreach ($affectedFiles as $file) { |
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$source = $homeDir.DIRECTORY_SEPARATOR.$file; |
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if (is_file($source)) { |
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$zip->addFile($source, $file); |
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$logger->debug('added file to zip: '.$source); |
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} |
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} |
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$zip->close(); |
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$this->addManifest($fileName); |
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} |
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private function addManifest($backupFile) |
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{ |
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$time = date_create_from_format('Y-m-d-H-i-s', basename($backupFile, '.zip')); |
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$machineName = $this->parameters->get('dotfiles.machine_name'); |
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$version = $this->lastVersion + 1; |
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$this->manifest[] = array( |
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'machine' => $machineName, |
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'version' => $version, |
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'created' => $time->format('Y-m-d H:i:s'), |
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'file' => basename($backupFile), |
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); |
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$exported = var_export($this->manifest, true); |
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$time = new \DateTime(); |
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$template = "<?php\n/* backup manifest updated: %s*/\n\$this->manifest = %s;"; |
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$contents = sprintf($template, $time->format('Y-m-d H:i:s'), $exported); |
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file_put_contents($this->manifestFile, $contents, LOCK_EX); |
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$this->loadManifest(); |
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} |
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private function loadManifest() |
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{ |
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if (is_file($file = $this->backupDir.'/manifest.php')) { |
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include $file; |
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$lastVersion = 0; |
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foreach ($this->manifest as $manifest) { |
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$version = $manifest['version']; |
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if ($version > $lastVersion) { |
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$lastVersion = $version; |
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} |
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} |
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$this->lastVersion = $lastVersion; |
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} |
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} |
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} |
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