272 lines
8.5 KiB
PHP
272 lines
8.5 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Command;
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use PhpMyAdmin\Template;
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use Symfony\Component\Console\Command\Command;
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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 Twig\Error\Error;
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use Twig\Loader\ArrayLoader;
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use Twig\Source;
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use function array_push;
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use function closedir;
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use function count;
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use function explode;
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use function file_get_contents;
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use function is_dir;
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use function is_file;
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use function max;
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use function min;
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use function opendir;
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use function preg_match;
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use function readdir;
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use function restore_error_handler;
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use function set_error_handler;
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use function sprintf;
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use const DIRECTORY_SEPARATOR;
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use const E_USER_DEPRECATED;
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/**
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* Command that will validate your template syntax and output encountered errors.
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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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* Copyright (c) 2013-2021 Fabien Potencier
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is furnished
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* to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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class TwigLintCommand extends Command
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{
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/** @var string|null */
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protected static $defaultName = 'lint:twig';
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/** @var string|null */
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protected static $defaultDescription = 'Lint a Twig template and outputs encountered errors';
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protected function configure(): void
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{
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$this
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->setDescription((string) self::$defaultDescription)
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->addOption('show-deprecations', null, InputOption::VALUE_NONE, 'Show deprecations as errors');
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}
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protected function findFiles(string $baseFolder): array
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{
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/* Open the handle */
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$handle = @opendir($baseFolder);
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if ($handle === false) {
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return [];
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}
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$foundFiles = [];
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while (($file = readdir($handle)) !== false) {
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if ($file === '.' || $file === '..') {
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continue;
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}
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$itemPath = $baseFolder . DIRECTORY_SEPARATOR . $file;
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if (is_dir($itemPath)) {
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array_push($foundFiles, ...$this->findFiles($itemPath));
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continue;
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}
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if (! is_file($itemPath)) {
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continue;
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}
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$foundFiles[] = $itemPath;
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}
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/* Close the handle */
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closedir($handle);
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return $foundFiles;
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}
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protected function execute(InputInterface $input, OutputInterface $output): int
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{
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$io = new SymfonyStyle($input, $output);
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$showDeprecations = $input->getOption('show-deprecations');
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if ($showDeprecations) {
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$prevErrorHandler = set_error_handler(
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static function (int $level, string $message, string $file, int $line) use (&$prevErrorHandler) {
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if ($level === E_USER_DEPRECATED) {
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$templateLine = 0;
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if (preg_match('/ at line (\d+)[ .]/', $message, $matches)) {
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$templateLine = (int) $matches[1];
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}
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throw new Error($message, $templateLine);
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}
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return $prevErrorHandler ? $prevErrorHandler($level, $message, $file, $line) : false;
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}
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);
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}
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try {
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$filesInfo = $this->getFilesInfo(ROOT_PATH . 'templates');
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} finally {
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if ($showDeprecations) {
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restore_error_handler();
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}
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}
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return $this->display($output, $io, $filesInfo);
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}
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protected function getFilesInfo(string $templatesPath): array
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{
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$filesInfo = [];
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$filesFound = $this->findFiles($templatesPath);
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foreach ($filesFound as $file) {
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$filesInfo[] = $this->validate($this->getTemplateContents($file), $file);
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}
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return $filesInfo;
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}
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/**
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* Allows easier testing
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*/
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protected function getTemplateContents(string $filePath): string
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{
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return (string) file_get_contents($filePath);
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}
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private function validate(string $template, string $file): array
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{
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$twig = Template::getTwigEnvironment(null);
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$realLoader = $twig->getLoader();
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try {
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$temporaryLoader = new ArrayLoader([$file => $template]);
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$twig->setLoader($temporaryLoader);
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$nodeTree = $twig->parse($twig->tokenize(new Source($template, $file)));
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$twig->compile($nodeTree);
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$twig->setLoader($realLoader);
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} catch (Error $e) {
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$twig->setLoader($realLoader);
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return [
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'template' => $template,
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'file' => $file,
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'line' => $e->getTemplateLine(),
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'valid' => false,
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'exception' => $e,
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];
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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(OutputInterface $output, SymfonyStyle $io, array $filesInfo): int
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{
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$errors = 0;
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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'], $info['file']);
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}
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}
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if ($errors === 0) {
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$io->success(sprintf('All %d Twig files contain valid syntax.', count($filesInfo)));
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return Command::SUCCESS;
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}
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$io->warning(
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sprintf(
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'%d Twig files have valid syntax and %d contain errors.',
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count($filesInfo) - $errors,
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$errors
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)
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);
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return Command::FAILURE;
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}
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private function renderException(
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SymfonyStyle $output,
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string $template,
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Error $exception,
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?string $file = null
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): void {
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$line = $exception->getTemplateLine();
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if ($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 !== $line) {
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continue;
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}
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$output->text(sprintf('<error> >> %s</error> ', $exception->getRawMessage()));
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}
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}
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private function getContext(string $template, int $line, int $context = 3): array
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{
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$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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}
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