LintCommand.php 9.8 KB

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  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\Yaml\Command;
  11. use Symfony\Component\Console\Attribute\AsCommand;
  12. use Symfony\Component\Console\CI\GithubActionReporter;
  13. use Symfony\Component\Console\Command\Command;
  14. use Symfony\Component\Console\Completion\CompletionInput;
  15. use Symfony\Component\Console\Completion\CompletionSuggestions;
  16. use Symfony\Component\Console\Exception\InvalidArgumentException;
  17. use Symfony\Component\Console\Exception\RuntimeException;
  18. use Symfony\Component\Console\Input\InputArgument;
  19. use Symfony\Component\Console\Input\InputInterface;
  20. use Symfony\Component\Console\Input\InputOption;
  21. use Symfony\Component\Console\Output\OutputInterface;
  22. use Symfony\Component\Console\Style\SymfonyStyle;
  23. use Symfony\Component\Yaml\Exception\ParseException;
  24. use Symfony\Component\Yaml\Parser;
  25. use Symfony\Component\Yaml\Yaml;
  26. /**
  27. * Validates YAML files syntax and outputs encountered errors.
  28. *
  29. * @author Grégoire Pineau <lyrixx@lyrixx.info>
  30. * @author Robin Chalas <robin.chalas@gmail.com>
  31. */
  32. #[AsCommand(name: 'lint:yaml', description: 'Lint a YAML file and outputs encountered errors')]
  33. class LintCommand extends Command
  34. {
  35. private Parser $parser;
  36. private ?string $format = null;
  37. private bool $displayCorrectFiles;
  38. private ?\Closure $directoryIteratorProvider;
  39. private ?\Closure $isReadableProvider;
  40. public function __construct(?string $name = null, ?callable $directoryIteratorProvider = null, ?callable $isReadableProvider = null)
  41. {
  42. parent::__construct($name);
  43. $this->directoryIteratorProvider = null === $directoryIteratorProvider ? null : $directoryIteratorProvider(...);
  44. $this->isReadableProvider = null === $isReadableProvider ? null : $isReadableProvider(...);
  45. }
  46. protected function configure(): void
  47. {
  48. $this
  49. ->addArgument('filename', InputArgument::IS_ARRAY, 'A file, a directory or "-" for reading from STDIN')
  50. ->addOption('format', null, InputOption::VALUE_REQUIRED, sprintf('The output format ("%s")', implode('", "', $this->getAvailableFormatOptions())))
  51. ->addOption('exclude', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Path(s) to exclude')
  52. ->addOption('parse-tags', null, InputOption::VALUE_NEGATABLE, 'Parse custom tags', null)
  53. ->setHelp(<<<EOF
  54. The <info>%command.name%</info> command lints a YAML file and outputs to STDOUT
  55. the first encountered syntax error.
  56. You can validates YAML contents passed from STDIN:
  57. <info>cat filename | php %command.full_name% -</info>
  58. You can also validate the syntax of a file:
  59. <info>php %command.full_name% filename</info>
  60. Or of a whole directory:
  61. <info>php %command.full_name% dirname</info>
  62. <info>php %command.full_name% dirname --format=json</info>
  63. You can also exclude one or more specific files:
  64. <info>php %command.full_name% dirname --exclude="dirname/foo.yaml" --exclude="dirname/bar.yaml"</info>
  65. EOF
  66. )
  67. ;
  68. }
  69. protected function execute(InputInterface $input, OutputInterface $output): int
  70. {
  71. $io = new SymfonyStyle($input, $output);
  72. $filenames = (array) $input->getArgument('filename');
  73. $excludes = $input->getOption('exclude');
  74. $this->format = $input->getOption('format');
  75. $flags = $input->getOption('parse-tags');
  76. if (null === $this->format) {
  77. // Autodetect format according to CI environment
  78. $this->format = class_exists(GithubActionReporter::class) && GithubActionReporter::isGithubActionEnvironment() ? 'github' : 'txt';
  79. }
  80. $flags = $flags ? Yaml::PARSE_CUSTOM_TAGS : 0;
  81. $this->displayCorrectFiles = $output->isVerbose();
  82. if (['-'] === $filenames) {
  83. return $this->display($io, [$this->validate(file_get_contents('php://stdin'), $flags)]);
  84. }
  85. if (!$filenames) {
  86. throw new RuntimeException('Please provide a filename or pipe file content to STDIN.');
  87. }
  88. $filesInfo = [];
  89. foreach ($filenames as $filename) {
  90. if (!$this->isReadable($filename)) {
  91. throw new RuntimeException(sprintf('File or directory "%s" is not readable.', $filename));
  92. }
  93. foreach ($this->getFiles($filename) as $file) {
  94. if (!\in_array($file->getPathname(), $excludes, true)) {
  95. $filesInfo[] = $this->validate(file_get_contents($file), $flags, $file);
  96. }
  97. }
  98. }
  99. return $this->display($io, $filesInfo);
  100. }
  101. private function validate(string $content, int $flags, ?string $file = null): array
  102. {
  103. $prevErrorHandler = set_error_handler(function ($level, $message, $file, $line) use (&$prevErrorHandler) {
  104. if (\E_USER_DEPRECATED === $level) {
  105. throw new ParseException($message, $this->getParser()->getRealCurrentLineNb() + 1);
  106. }
  107. return $prevErrorHandler ? $prevErrorHandler($level, $message, $file, $line) : false;
  108. });
  109. try {
  110. $this->getParser()->parse($content, Yaml::PARSE_CONSTANT | $flags);
  111. } catch (ParseException $e) {
  112. return ['file' => $file, 'line' => $e->getParsedLine(), 'valid' => false, 'message' => $e->getMessage()];
  113. } finally {
  114. restore_error_handler();
  115. }
  116. return ['file' => $file, 'valid' => true];
  117. }
  118. private function display(SymfonyStyle $io, array $files): int
  119. {
  120. return match ($this->format) {
  121. 'txt' => $this->displayTxt($io, $files),
  122. 'json' => $this->displayJson($io, $files),
  123. 'github' => $this->displayTxt($io, $files, true),
  124. default => throw new InvalidArgumentException(sprintf('Supported formats are "%s".', implode('", "', $this->getAvailableFormatOptions()))),
  125. };
  126. }
  127. private function displayTxt(SymfonyStyle $io, array $filesInfo, bool $errorAsGithubAnnotations = false): int
  128. {
  129. $countFiles = \count($filesInfo);
  130. $erroredFiles = 0;
  131. $suggestTagOption = false;
  132. if ($errorAsGithubAnnotations) {
  133. $githubReporter = new GithubActionReporter($io);
  134. }
  135. foreach ($filesInfo as $info) {
  136. if ($info['valid'] && $this->displayCorrectFiles) {
  137. $io->comment('<info>OK</info>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
  138. } elseif (!$info['valid']) {
  139. ++$erroredFiles;
  140. $io->text('<error> ERROR </error>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
  141. $io->text(sprintf('<error> >> %s</error>', $info['message']));
  142. if (str_contains($info['message'], 'PARSE_CUSTOM_TAGS')) {
  143. $suggestTagOption = true;
  144. }
  145. if ($errorAsGithubAnnotations) {
  146. $githubReporter->error($info['message'], $info['file'] ?? 'php://stdin', $info['line']);
  147. }
  148. }
  149. }
  150. if (0 === $erroredFiles) {
  151. $io->success(sprintf('All %d YAML files contain valid syntax.', $countFiles));
  152. } else {
  153. $io->warning(sprintf('%d YAML files have valid syntax and %d contain errors.%s', $countFiles - $erroredFiles, $erroredFiles, $suggestTagOption ? ' Use the --parse-tags option if you want parse custom tags.' : ''));
  154. }
  155. return min($erroredFiles, 1);
  156. }
  157. private function displayJson(SymfonyStyle $io, array $filesInfo): int
  158. {
  159. $errors = 0;
  160. array_walk($filesInfo, function (&$v) use (&$errors) {
  161. $v['file'] = (string) $v['file'];
  162. if (!$v['valid']) {
  163. ++$errors;
  164. }
  165. if (isset($v['message']) && str_contains($v['message'], 'PARSE_CUSTOM_TAGS')) {
  166. $v['message'] .= ' Use the --parse-tags option if you want parse custom tags.';
  167. }
  168. });
  169. $io->writeln(json_encode($filesInfo, \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES));
  170. return min($errors, 1);
  171. }
  172. private function getFiles(string $fileOrDirectory): iterable
  173. {
  174. if (is_file($fileOrDirectory)) {
  175. yield new \SplFileInfo($fileOrDirectory);
  176. return;
  177. }
  178. foreach ($this->getDirectoryIterator($fileOrDirectory) as $file) {
  179. if (!\in_array($file->getExtension(), ['yml', 'yaml'])) {
  180. continue;
  181. }
  182. yield $file;
  183. }
  184. }
  185. private function getParser(): Parser
  186. {
  187. return $this->parser ??= new Parser();
  188. }
  189. private function getDirectoryIterator(string $directory): iterable
  190. {
  191. $default = fn ($directory) => new \RecursiveIteratorIterator(
  192. new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
  193. \RecursiveIteratorIterator::LEAVES_ONLY
  194. );
  195. if (null !== $this->directoryIteratorProvider) {
  196. return ($this->directoryIteratorProvider)($directory, $default);
  197. }
  198. return $default($directory);
  199. }
  200. private function isReadable(string $fileOrDirectory): bool
  201. {
  202. $default = is_readable(...);
  203. if (null !== $this->isReadableProvider) {
  204. return ($this->isReadableProvider)($fileOrDirectory, $default);
  205. }
  206. return $default($fileOrDirectory);
  207. }
  208. public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
  209. {
  210. if ($input->mustSuggestOptionValuesFor('format')) {
  211. $suggestions->suggestValues($this->getAvailableFormatOptions());
  212. }
  213. }
  214. private function getAvailableFormatOptions(): array
  215. {
  216. return ['txt', 'json', 'github'];
  217. }
  218. }