setName('preview:reset-rendered-texts') ->setDescription('Deletes all generated avatars and previews of text and md files') ->addOption('dry', 'd', InputOption::VALUE_NONE, 'Dry mode - will not delete any files - in combination with the verbose mode one could check the operations.'); } protected function execute(InputInterface $input, OutputInterface $output): int { $dryMode = $input->getOption('dry'); if ($dryMode) { $output->writeln('INFO: The command is run in dry mode and will not modify anything.'); $output->writeln(''); } $this->deleteAvatars($output, $dryMode); $this->deletePreviews($output, $dryMode); return 0; } private function deleteAvatars(OutputInterface $output, bool $dryMode): void { $avatarsToDeleteCount = 0; foreach ($this->getAvatarsToDelete() as [$userId, $avatar]) { $output->writeln('Deleting avatar for ' . $userId, OutputInterface::VERBOSITY_VERBOSE); $avatarsToDeleteCount++; if ($dryMode) { continue; } try { $avatar->remove(); } catch (NotFoundException $e) { // continue } catch (NotPermittedException $e) { // continue } } $output->writeln('Deleted ' . $avatarsToDeleteCount . ' avatars'); $output->writeln(''); } private function getAvatarsToDelete(): \Iterator { foreach ($this->userManager->search('') as $user) { $avatar = $this->avatarManager->getAvatar($user->getUID()); if (!$avatar->isCustomAvatar()) { yield [$user->getUID(), $avatar]; } } } private function deletePreviews(OutputInterface $output, bool $dryMode): void { $previewsToDeleteCount = 0; foreach ($this->getPreviewsToDelete() as ['name' => $previewFileId, 'path' => $filePath]) { $output->writeln('Deleting previews for ' . $filePath, OutputInterface::VERBOSITY_VERBOSE); $previewsToDeleteCount++; if ($dryMode) { continue; } try { $preview = $this->previewFolder->getFolder((string)$previewFileId); $preview->delete(); } catch (NotFoundException $e) { // continue } catch (NotPermittedException $e) { // continue } } $output->writeln('Deleted ' . $previewsToDeleteCount . ' previews'); } // Copy pasted and adjusted from // "lib/private/Preview/BackgroundCleanupJob.php". private function getPreviewsToDelete(): \Iterator { $qb = $this->connection->getQueryBuilder(); $qb->select('path', 'mimetype') ->from('filecache') ->where($qb->expr()->eq('fileid', $qb->createNamedParameter($this->previewFolder->getId()))); $cursor = $qb->executeQuery(); $data = $cursor->fetch(); $cursor->closeCursor(); if ($data === null) { return []; } /* * This lovely like is the result of the way the new previews are stored * We take the md5 of the name (fileid) and split the first 7 chars. That way * there are not a gazillion files in the root of the preview appdata. */ $like = $this->connection->escapeLikeParameter($data['path']) . '/_/_/_/_/_/_/_/%'; $qb = $this->connection->getQueryBuilder(); $qb->select('a.name', 'b.path') ->from('filecache', 'a') ->leftJoin('a', 'filecache', 'b', $qb->expr()->eq( $qb->expr()->castColumn('a.name', IQueryBuilder::PARAM_INT), 'b.fileid' )) ->where( $qb->expr()->andX( $qb->expr()->like('a.path', $qb->createNamedParameter($like)), $qb->expr()->eq('a.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('httpd/unix-directory'))), $qb->expr()->orX( $qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/plain'))), $qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/markdown'))), $qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/x-markdown'))) ) ) ); $cursor = $qb->executeQuery(); while ($row = $cursor->fetch()) { yield $row; } $cursor->closeCursor(); } } >artonge/feat/add_retry_support_to_query_builder Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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