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vendor/symfony/yaml/Command/LintCommand.php
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253
vendor/symfony/yaml/Command/LintCommand.php
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<?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\Component\Yaml\Command;
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use Symfony\Component\Console\Command\Command;
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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\Yaml\Exception\ParseException;
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use Symfony\Component\Yaml\Parser;
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use Symfony\Component\Yaml\Yaml;
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/**
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* Validates YAML files syntax and outputs encountered errors.
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*
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* @author Grégoire Pineau <lyrixx@lyrixx.info>
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* @author Robin Chalas <robin.chalas@gmail.com>
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*/
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class LintCommand extends Command
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{
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protected static $defaultName = 'lint:yaml';
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private $parser;
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private $format;
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private $displayCorrectFiles;
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private $directoryIteratorProvider;
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private $isReadableProvider;
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public function __construct(string $name = null, callable $directoryIteratorProvider = null, callable $isReadableProvider = null)
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{
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parent::__construct($name);
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$this->directoryIteratorProvider = $directoryIteratorProvider;
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$this->isReadableProvider = $isReadableProvider;
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}
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/**
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* {@inheritdoc}
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*/
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protected function configure()
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{
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$this
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->setDescription('Lints a file and outputs encountered errors')
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->addArgument('filename', InputArgument::IS_ARRAY, 'A file or a directory or STDIN')
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->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format', 'txt')
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->addOption('parse-tags', null, InputOption::VALUE_NONE, 'Parse custom tags')
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->setHelp(<<<EOF
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The <info>%command.name%</info> command lints a YAML file and outputs to STDOUT
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the first encountered syntax error.
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You can validates YAML contents passed from STDIN:
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<info>cat filename | php %command.full_name%</info>
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You can also validate 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 = (array) $input->getArgument('filename');
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$this->format = $input->getOption('format');
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$this->displayCorrectFiles = $output->isVerbose();
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$flags = $input->getOption('parse-tags') ? Yaml::PARSE_CUSTOM_TAGS : 0;
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if (0 === \count($filenames)) {
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if (!$stdin = $this->getStdin()) {
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throw new RuntimeException('Please provide a filename or pipe file content to STDIN.');
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}
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return $this->display($io, [$this->validate($stdin, $flags)]);
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}
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$filesInfo = [];
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foreach ($filenames as $filename) {
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if (!$this->isReadable($filename)) {
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throw new RuntimeException(sprintf('File or directory "%s" is not readable.', $filename));
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}
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foreach ($this->getFiles($filename) as $file) {
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$filesInfo[] = $this->validate(file_get_contents($file), $flags, $file);
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}
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}
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return $this->display($io, $filesInfo);
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}
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private function validate($content, $flags, $file = null)
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{
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$prevErrorHandler = set_error_handler(function ($level, $message, $file, $line) use (&$prevErrorHandler) {
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if (E_USER_DEPRECATED === $level) {
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throw new ParseException($message, $this->getParser()->getRealCurrentLineNb() + 1);
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}
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return $prevErrorHandler ? $prevErrorHandler($level, $message, $file, $line) : false;
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});
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try {
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$this->getParser()->parse($content, Yaml::PARSE_CONSTANT | $flags);
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} catch (ParseException $e) {
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return ['file' => $file, 'line' => $e->getParsedLine(), 'valid' => false, 'message' => $e->getMessage()];
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} finally {
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restore_error_handler();
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}
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return ['file' => $file, 'valid' => true];
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}
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private function display(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 $this->displayTxt($io, $files);
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case 'json':
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return $this->displayJson($io, $files);
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default:
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throw new InvalidArgumentException(sprintf('The format "%s" is not supported.', $this->format));
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}
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}
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private function displayTxt(SymfonyStyle $io, array $filesInfo)
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{
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$countFiles = \count($filesInfo);
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$erroredFiles = 0;
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foreach ($filesInfo as $info) {
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if ($info['valid'] && $this->displayCorrectFiles) {
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$io->comment('<info>OK</info>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
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} elseif (!$info['valid']) {
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++$erroredFiles;
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$io->text('<error> ERROR </error>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
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$io->text(sprintf('<error> >> %s</error>', $info['message']));
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}
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}
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if (0 === $erroredFiles) {
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$io->success(sprintf('All %d YAML files contain valid syntax.', $countFiles));
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} else {
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$io->warning(sprintf('%d YAML files have valid syntax and %d contain errors.', $countFiles - $erroredFiles, $erroredFiles));
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}
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return min($erroredFiles, 1);
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}
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private function displayJson(SymfonyStyle $io, 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) $v['file'];
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if (!$v['valid']) {
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++$errors;
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}
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});
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$io->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 getFiles($fileOrDirectory)
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{
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if (is_file($fileOrDirectory)) {
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yield new \SplFileInfo($fileOrDirectory);
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return;
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}
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foreach ($this->getDirectoryIterator($fileOrDirectory) as $file) {
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if (!\in_array($file->getExtension(), ['yml', 'yaml'])) {
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continue;
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}
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yield $file;
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}
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}
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private function getStdin()
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{
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if (0 !== ftell(STDIN)) {
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return;
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}
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$inputs = '';
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while (!feof(STDIN)) {
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$inputs .= fread(STDIN, 1024);
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}
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return $inputs;
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}
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private function getParser()
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{
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if (!$this->parser) {
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$this->parser = new Parser();
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}
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return $this->parser;
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}
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private function getDirectoryIterator($directory)
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{
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$default = function ($directory) {
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return new \RecursiveIteratorIterator(
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new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
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\RecursiveIteratorIterator::LEAVES_ONLY
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);
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};
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if (null !== $this->directoryIteratorProvider) {
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return ($this->directoryIteratorProvider)($directory, $default);
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}
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return $default($directory);
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}
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private function isReadable($fileOrDirectory)
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{
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$default = function ($fileOrDirectory) {
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return is_readable($fileOrDirectory);
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};
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if (null !== $this->isReadableProvider) {
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return ($this->isReadableProvider)($fileOrDirectory, $default);
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}
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return $default($fileOrDirectory);
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}
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}
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