Symfony Profiler

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

vendor/symfony/twig-bridge/Command/LintCommand.php line 239