297 lines
10 KiB
PHP
297 lines
10 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Bridge\Twig\Command;
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use Symfony\Component\Console\CI\GithubActionReporter;
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use Symfony\Component\Console\Command\Command;
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use Symfony\Component\Console\Completion\CompletionInput;
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use Symfony\Component\Console\Completion\CompletionSuggestions;
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use Symfony\Component\Console\Exception\InvalidArgumentException;
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use Symfony\Component\Console\Exception\RuntimeException;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Style\SymfonyStyle;
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use Symfony\Component\Finder\Finder;
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use Twig\Environment;
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use Twig\Error\Error;
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use Twig\Loader\ArrayLoader;
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use Twig\Loader\FilesystemLoader;
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use Twig\Source;
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/**
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* Command that will validate your template syntax and output encountered errors.
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*
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* @author Marc Weistroff <marc.weistroff@sensiolabs.com>
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* @author Jérôme Tamarelle <jerome@tamarelle.net>
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*/
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class LintCommand extends Command
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{
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protected static $defaultName = 'lint:twig';
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protected static $defaultDescription = 'Lint a Twig template and outputs encountered errors';
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private $twig;
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/**
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* @var string|null
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*/
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private $format;
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public function __construct(Environment $twig)
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{
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parent::__construct();
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$this->twig = $twig;
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}
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protected function configure()
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{
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$this
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->setDescription(self::$defaultDescription)
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->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format')
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->addOption('show-deprecations', null, InputOption::VALUE_NONE, 'Show deprecations as errors')
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->addArgument('filename', InputArgument::IS_ARRAY, 'A file, a directory or "-" for reading from STDIN')
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->setHelp(<<<'EOF'
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The <info>%command.name%</info> command lints a template and outputs to STDOUT
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the first encountered syntax error.
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You can validate the syntax of contents passed from STDIN:
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<info>cat filename | php %command.full_name% -</info>
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Or the syntax of a file:
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<info>php %command.full_name% filename</info>
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Or of a whole directory:
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<info>php %command.full_name% dirname</info>
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<info>php %command.full_name% dirname --format=json</info>
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EOF
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)
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;
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}
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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$io = new SymfonyStyle($input, $output);
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$filenames = $input->getArgument('filename');
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$showDeprecations = $input->getOption('show-deprecations');
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$this->format = $input->getOption('format');
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if (null === $this->format) {
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$this->format = GithubActionReporter::isGithubActionEnvironment() ? 'github' : 'txt';
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}
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if (['-'] === $filenames) {
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return $this->display($input, $output, $io, [$this->validate(file_get_contents('php://stdin'), uniqid('sf_', true))]);
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}
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if (!$filenames) {
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$loader = $this->twig->getLoader();
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if ($loader instanceof FilesystemLoader) {
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$paths = [];
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foreach ($loader->getNamespaces() as $namespace) {
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$paths[] = $loader->getPaths($namespace);
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}
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$filenames = array_merge(...$paths);
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}
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if (!$filenames) {
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throw new RuntimeException('Please provide a filename or pipe template content to STDIN.');
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}
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}
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if ($showDeprecations) {
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$prevErrorHandler = set_error_handler(static function ($level, $message, $file, $line) use (&$prevErrorHandler) {
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if (\E_USER_DEPRECATED === $level) {
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$templateLine = 0;
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if (preg_match('/ at line (\d+)[ .]/', $message, $matches)) {
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$templateLine = $matches[1];
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}
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throw new Error($message, $templateLine);
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}
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return $prevErrorHandler ? $prevErrorHandler($level, $message, $file, $line) : false;
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});
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}
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try {
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$filesInfo = $this->getFilesInfo($filenames);
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} finally {
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if ($showDeprecations) {
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restore_error_handler();
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}
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}
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return $this->display($input, $output, $io, $filesInfo);
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}
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private function getFilesInfo(array $filenames): array
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{
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$filesInfo = [];
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foreach ($filenames as $filename) {
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foreach ($this->findFiles($filename) as $file) {
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$filesInfo[] = $this->validate(file_get_contents($file), $file);
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}
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}
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return $filesInfo;
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}
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protected function findFiles(string $filename)
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{
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if (is_file($filename)) {
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return [$filename];
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} elseif (is_dir($filename)) {
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return Finder::create()->files()->in($filename)->name('*.twig');
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}
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throw new RuntimeException(sprintf('File or directory "%s" is not readable.', $filename));
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}
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private function validate(string $template, string $file): array
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{
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$realLoader = $this->twig->getLoader();
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try {
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$temporaryLoader = new ArrayLoader([$file => $template]);
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$this->twig->setLoader($temporaryLoader);
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$nodeTree = $this->twig->parse($this->twig->tokenize(new Source($template, $file)));
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$this->twig->compile($nodeTree);
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$this->twig->setLoader($realLoader);
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} catch (Error $e) {
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$this->twig->setLoader($realLoader);
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return ['template' => $template, 'file' => $file, 'line' => $e->getTemplateLine(), 'valid' => false, 'exception' => $e];
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}
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return ['template' => $template, 'file' => $file, 'valid' => true];
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}
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private function display(InputInterface $input, OutputInterface $output, SymfonyStyle $io, array $files)
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{
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switch ($this->format) {
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case 'txt':
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return $this->displayTxt($output, $io, $files);
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case 'json':
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return $this->displayJson($output, $files);
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case 'github':
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return $this->displayTxt($output, $io, $files, true);
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default:
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throw new InvalidArgumentException(sprintf('The format "%s" is not supported.', $input->getOption('format')));
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}
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}
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private function displayTxt(OutputInterface $output, SymfonyStyle $io, array $filesInfo, bool $errorAsGithubAnnotations = false)
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{
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$errors = 0;
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$githubReporter = $errorAsGithubAnnotations ? new GithubActionReporter($output) : null;
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foreach ($filesInfo as $info) {
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if ($info['valid'] && $output->isVerbose()) {
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$io->comment('<info>OK</info>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
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} elseif (!$info['valid']) {
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++$errors;
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$this->renderException($io, $info['template'], $info['exception'], $info['file'], $githubReporter);
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}
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}
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if (0 === $errors) {
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$io->success(sprintf('All %d Twig files contain valid syntax.', \count($filesInfo)));
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} else {
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$io->warning(sprintf('%d Twig files have valid syntax and %d contain errors.', \count($filesInfo) - $errors, $errors));
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}
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return min($errors, 1);
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}
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private function displayJson(OutputInterface $output, array $filesInfo)
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{
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$errors = 0;
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array_walk($filesInfo, function (&$v) use (&$errors) {
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$v['file'] = (string) $v['file'];
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unset($v['template']);
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if (!$v['valid']) {
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$v['message'] = $v['exception']->getMessage();
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unset($v['exception']);
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++$errors;
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}
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});
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$output->writeln(json_encode($filesInfo, \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES));
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return min($errors, 1);
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}
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private function renderException(SymfonyStyle $output, string $template, Error $exception, string $file = null, GithubActionReporter $githubReporter = null)
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{
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$line = $exception->getTemplateLine();
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if ($githubReporter) {
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$githubReporter->error($exception->getRawMessage(), $file, $line <= 0 ? null : $line);
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}
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if ($file) {
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$output->text(sprintf('<error> ERROR </error> in %s (line %s)', $file, $line));
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} else {
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$output->text(sprintf('<error> ERROR </error> (line %s)', $line));
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}
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// If the line is not known (this might happen for deprecations if we fail at detecting the line for instance),
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// we render the message without context, to ensure the message is displayed.
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if ($line <= 0) {
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$output->text(sprintf('<error> >> %s</error> ', $exception->getRawMessage()));
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return;
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}
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foreach ($this->getContext($template, $line) as $lineNumber => $code) {
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$output->text(sprintf(
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'%s %-6s %s',
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$lineNumber === $line ? '<error> >> </error>' : ' ',
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$lineNumber,
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$code
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));
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if ($lineNumber === $line) {
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$output->text(sprintf('<error> >> %s</error> ', $exception->getRawMessage()));
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}
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}
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}
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private function getContext(string $template, int $line, int $context = 3)
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{
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$lines = explode("\n", $template);
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$position = max(0, $line - $context);
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$max = min(\count($lines), $line - 1 + $context);
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$result = [];
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while ($position < $max) {
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$result[$position + 1] = $lines[$position];
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++$position;
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}
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return $result;
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}
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public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
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{
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if ($input->mustSuggestOptionValuesFor('format')) {
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$suggestions->suggestValues(['txt', 'json', 'github']);
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}
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}
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}
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