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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Symfony\Component\Yaml\Command; use Symfony\Component\Console\Attribute\AsCommand; use Symfony\Component\Console\CI\GithubActionReporter; use Symfony\Component\Console\Command\Command; use Symfony\Component\Console\Completion\CompletionInput; use Symfony\Component\Console\Completion\CompletionSuggestions; use Symfony\Component\Console\Exception\InvalidArgumentException; use Symfony\Component\Console\Exception\RuntimeException; use Symfony\Component\Console\Input\InputArgument; use Symfony\Component\Console\Input\InputInterface; use Symfony\Component\Console\Input\InputOption; use Symfony\Component\Console\Output\OutputInterface; use Symfony\Component\Console\Style\SymfonyStyle; use Symfony\Component\Yaml\Exception\ParseException; use Symfony\Component\Yaml\Parser; use Symfony\Component\Yaml\Yaml; /* * Validates YAML files syntax and outputs encountered errors. * * @author Grégoire Pineau <lyrixx@lyrixx.info> * @author Robin Chalas <robin.chalas@gmail.com> / #[AsCommand(name: 'lint:yaml', description: 'Lint a YAML file and outputs encountered errors')] class LintCommand extends Command { private Parser $parser; private ?string $format = null; private bool $displayCorrectFiles; private ?\Closure $directoryIteratorProvider; private ?\Closure $isReadableProvider; public function __construct(?string $name = null, ?callable $directoryIteratorProvider = null, ?callable $isReadableProvider = null) { parent::__construct($name); $this->directoryIteratorProvider = null === $directoryIteratorProvider ? null : $directoryIteratorProvider(...); $this->isReadableProvider = null === $isReadableProvider ? null : $isReadableProvider(...); } protected function configure(): void { $this ->addArgument('filename', InputArgument::IS_ARRAY, 'A file, a directory or "-" for reading from STDIN') ->addOption('format', null, InputOption::VALUE_REQUIRED, \sprintf('The output format ("%s")', implode('", "', $this->getAvailableFormatOptions()))) ->addOption('exclude', null, InputOption::VALUE_REQUIRED \| InputOption::VALUE_IS_ARRAY, 'Path(s) to exclude') ->addOption('parse-tags', null, InputOption::VALUE_NEGATABLE, 'Parse custom tags', null) ->setHelp(<<<EOF The <info>%command.name%</info> command lints a YAML file and outputs to STDOUT the first encountered syntax error. You can validates YAML contents passed from STDIN: <info>cat filename \| php %command.full_name% -</info> You can also validate the syntax of a file: <info>php %command.full_name% filename</info> Or of a whole directory: <info>php %command.full_name% dirname</info> The <info>--format</info> option specifies the format of the command output: <info>php %command.full_name% dirname --format=json</info> You can also exclude one or more specific files: <info>php %command.full_name% dirname --exclude="dirname/foo.yaml" --exclude="dirname/bar.yaml"</info> EOF ) ; } protected function execute(InputInterface $input, OutputInterface $output): int { $io = new SymfonyStyle($input, $output); $filenames = (array) $input->getArgument('filename'); $excludes = $input->getOption('exclude'); $this->format = $input->getOption('format'); $flags = $input->getOption('parse-tags'); if (null === $this->format) { // Autodetect format according to CI environment $this->format = class_exists(GithubActionReporter::class) && GithubActionReporter::isGithubActionEnvironment() ? 'github' : 'txt'; } $flags = $flags ? Yaml::PARSE_CUSTOM_TAGS : 0; $this->displayCorrectFiles = $output->isVerbose(); if (['-'] === $filenames) { return $this->display($io, [$this->validate(file_get_contents('php://stdin'), $flags)]); } if (!$filenames) { throw new RuntimeException('Please provide a filename or pipe file content to STDIN.'); } $filesInfo = []; foreach ($filenames as $filename) { if (!$this->isReadable($filename)) { throw new RuntimeException(\sprintf('File or directory "%s" is not readable.', $filename)); } foreach ($this->getFiles($filename) as $file) { if (!\in_array($file->getPathname(), $excludes, true)) { $filesInfo[] = $this->validate(file_get_contents($file), $flags, $file); } } } return $this->display($io, $filesInfo); } private function validate(string $content, int $flags, ?string $file = null): array { $prevErrorHandler = set_error_handler(function ($level, $message, $file, $line) use (&$prevErrorHandler) { if (\E_USER_DEPRECATED === $level) { throw new ParseException($message, $this->getParser()->getRealCurrentLineNb() + 1); } return $prevErrorHandler ? $prevErrorHandler($level, $message, $file, $line) : false; }); try { $this->getParser()->parse($content, Yaml::PARSE_CONSTANT \| $flags); } catch (ParseException $e) { return ['file' => $file, 'line' => $e->getParsedLine(), 'valid' => false, 'message' => $e->getMessage()]; } finally { restore_error_handler(); } return ['file' => $file, 'valid' => true]; } private function display(SymfonyStyle $io, array $files): int { return match ($this->format) { 'txt' => $this->displayTxt($io, $files), 'json' => $this->displayJson($io, $files), 'github' => $this->displayTxt($io, $files, true), default => throw new InvalidArgumentException(\sprintf('Supported formats are "%s".', implode('", "', $this->getAvailableFormatOptions()))), }; } private function displayTxt(SymfonyStyle $io, array $filesInfo, bool $errorAsGithubAnnotations = false): int { $countFiles = \count($filesInfo); $erroredFiles = 0; $suggestTagOption = false; if ($errorAsGithubAnnotations) { $githubReporter = new GithubActionReporter($io); } foreach ($filesInfo as $info) { if ($info['valid'] && $this->displayCorrectFiles) { $io->comment('<info>OK</info>'.($info['file'] ? \sprintf(' in %s', $info['file']) : '')); } elseif (!$info['valid']) { ++$erroredFiles; $io->text('<error> ERROR </error>'.($info['file'] ? \sprintf(' in %s', $info['file']) : '')); $io->text(\sprintf('<error> >> %s</error>', $info['message'])); if (str_contains($info['message'], 'PARSE_CUSTOM_TAGS')) { $suggestTagOption = true; } if ($errorAsGithubAnnotations) { $githubReporter->error($info['message'], $info['file'] ?? 'php://stdin', $info['line']); } } } if (0 === $erroredFiles) { $io->success(\sprintf('All %d YAML files contain valid syntax.', $countFiles)); } else { $io->warning(\sprintf('%d YAML files have valid syntax and %d contain errors.%s', $countFiles - $erroredFiles, $erroredFiles, $suggestTagOption ? ' Use the --parse-tags option if you want parse custom tags.' : '')); } return min($erroredFiles, 1); } private function displayJson(SymfonyStyle $io, array $filesInfo): int { $errors = 0; array_walk($filesInfo, function (&$v) use (&$errors) { $v['file'] = (string) $v['file']; if (!$v['valid']) { ++$errors; } if (isset($v['message']) && str_contains($v['message'], 'PARSE_CUSTOM_TAGS')) { $v['message'] .= ' Use the --parse-tags option if you want parse custom tags.'; } }); $io->writeln(json_encode($filesInfo, \JSON_PRETTY_PRINT \| \JSON_UNESCAPED_SLASHES)); return min($errors, 1); } private function getFiles(string $fileOrDirectory): iterable { if (is_file($fileOrDirectory)) { yield new \SplFileInfo($fileOrDirectory); return; } foreach ($this->getDirectoryIterator($fileOrDirectory) as $file) { if (!\in_array($file->getExtension(), ['yml', 'yaml'])) { continue; } yield $file; } } private function getParser(): Parser { return $this->parser ??= new Parser(); } private function getDirectoryIterator(string $directory): iterable { $default = fn ($directory) => new \RecursiveIteratorIterator( new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS \| \FilesystemIterator::FOLLOW_SYMLINKS), \RecursiveIteratorIterator::LEAVES_ONLY ); if (null !== $this->directoryIteratorProvider) { return ($this->directoryIteratorProvider)($directory, $default); } return $default($directory); } private function isReadable(string $fileOrDirectory): bool { $default = is_readable(...); if (null !== $this->isReadableProvider) { return ($this->isReadableProvider)($fileOrDirectory, $default); } return $default($fileOrDirectory); } public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void { if ($input->mustSuggestOptionValuesFor('format')) { $suggestions->suggestValues($this->getAvailableFormatOptions()); } } /* @return string[] */ private function getAvailableFormatOptions(): array { return ['txt', 'json', 'github']; } }

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