[stable30] feat: backport command to cleanup previews

core/Command/Preview/Cleanup.php

@@ -0,0 +1,89 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\Core\Command\Preview;
+
+use OC\Core\Command\Base;
+use OCP\Files\Folder;
+use OCP\Files\IRootFolder;
+use OCP\Files\NotFoundException;
+use OCP\Files\NotPermittedException;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Cleanup extends Base {
+
+	public function __construct(
+		private IRootFolder $rootFolder,
+		private LoggerInterface $logger,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		$this
+			->setName('preview:cleanup')
+			->setDescription('Removes existing preview files');
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		try {
+			$appDataFolder = $this->rootFolder->get($this->rootFolder->getAppDataDirectoryName());
+
+			if (!$appDataFolder instanceof Folder) {
+				$this->logger->error("Previews can't be removed: appdata is not a folder");
+				$output->writeln("Previews can't be removed: appdata is not a folder");
+				return 1;
+			}
+
+			/** @var Folder $previewFolder */
+			$previewFolder = $appDataFolder->get('preview');
+
+		} catch (NotFoundException $e) {
+			$this->logger->error("Previews can't be removed: appdata folder can't be found", ['exception' => $e]);
+			$output->writeln("Previews can't be removed: preview folder isn't deletable");
+			return 1;
+		}
+
+		if (!$previewFolder->isDeletable()) {
+			$this->logger->error("Previews can't be removed: preview folder isn't deletable");
+			$output->writeln("Previews can't be removed: preview folder isn't deletable");
+			return 1;
+		}
+
+		try {
+			$previewFolder->delete();
+			$this->logger->debug('Preview folder deleted');
+			$output->writeln('Preview folder deleted', OutputInterface::VERBOSITY_VERBOSE);
+		} catch (NotFoundException $e) {
+			$output->writeln("Previews weren't deleted: preview folder was not found while deleting it");
+			$this->logger->error("Previews weren't deleted: preview folder was not found while deleting it", ['exception' => $e]);
+			return 1;
+		} catch (NotPermittedException $e) {
+			$output->writeln("Previews weren't deleted: you don't have the permission to delete preview folder");
+			$this->logger->error("Previews weren't deleted: you don't have the permission to delete preview folder", ['exception' => $e]);
+			return 1;
+		}
+
+		try {
+			$createdFolder = $appDataFolder->newFolder('preview');
+			$this->logger->error('newly created appdata folder', ['folder' => $createdFolder->getPath()]);
+			$this->logger->debug('Preview folder recreated');
+			$output->writeln('Preview folder recreated', OutputInterface::VERBOSITY_VERBOSE);
+		} catch (NotPermittedException $e) {
+			$output->writeln("Preview folder was deleted, but you don't have the permission to create preview folder");
+			$this->logger->error("Preview folder was deleted, but you don't have the permission to create preview folder", ['exception' => $e]);
+			return 1;
+		}
+
+		$output->writeln('Previews removed');
+		return 0;
+	}
+}

core/register_command.php

@@ -102,6 +102,7 @@
 	$application->add(Server::get(Command\Maintenance\Repair::class));
 	$application->add(Server::get(Command\Maintenance\RepairShareOwnership::class));
 
+	$application->add(Server::get(Command\Preview\Cleanup::class));
 	$application->add(Server::get(Command\Preview\Generate::class));
 	$application->add(Server::get(Command\Preview\Repair::class));
 	$application->add(Server::get(Command\Preview\ResetRenderedTexts::class));

lib/composer/composer/autoload_classmap.php

@@ -1219,6 +1219,7 @@
     'OC\\Core\\Command\\Memcache\\DistributedDelete' => $baseDir . '/core/Command/Memcache/DistributedDelete.php',
     'OC\\Core\\Command\\Memcache\\DistributedGet' => $baseDir . '/core/Command/Memcache/DistributedGet.php',
     'OC\\Core\\Command\\Memcache\\DistributedSet' => $baseDir . '/core/Command/Memcache/DistributedSet.php',
+    'OC\\Core\\Command\\Preview\\Cleanup' => $baseDir . '/core/Command/Preview/Cleanup.php',
     'OC\\Core\\Command\\Preview\\Generate' => $baseDir . '/core/Command/Preview/Generate.php',
     'OC\\Core\\Command\\Preview\\Repair' => $baseDir . '/core/Command/Preview/Repair.php',
     'OC\\Core\\Command\\Preview\\ResetRenderedTexts' => $baseDir . '/core/Command/Preview/ResetRenderedTexts.php',

lib/composer/composer/autoload_static.php

@@ -1252,6 +1252,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Core\\Command\\Memcache\\DistributedDelete' => __DIR__ . '/../../..' . '/core/Command/Memcache/DistributedDelete.php',
         'OC\\Core\\Command\\Memcache\\DistributedGet' => __DIR__ . '/../../..' . '/core/Command/Memcache/DistributedGet.php',
         'OC\\Core\\Command\\Memcache\\DistributedSet' => __DIR__ . '/../../..' . '/core/Command/Memcache/DistributedSet.php',
+        'OC\\Core\\Command\\Preview\\Cleanup' => __DIR__ . '/../../..' . '/core/Command/Preview/Cleanup.php',
         'OC\\Core\\Command\\Preview\\Generate' => __DIR__ . '/../../..' . '/core/Command/Preview/Generate.php',
         'OC\\Core\\Command\\Preview\\Repair' => __DIR__ . '/../../..' . '/core/Command/Preview/Repair.php',
         'OC\\Core\\Command\\Preview\\ResetRenderedTexts' => __DIR__ . '/../../..' . '/core/Command/Preview/ResetRenderedTexts.php',