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- <?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\Component\Config\Resource;
- use Symfony\Component\Finder\Finder;
- use Symfony\Component\Finder\Glob;
- /**
- * GlobResource represents a set of resources stored on the filesystem.
- *
- * Only existence/removal is tracked (not mtimes.)
- *
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @final
- */
- class GlobResource implements \IteratorAggregate, SelfCheckingResourceInterface
- {
- private $prefix;
- private $pattern;
- private $recursive;
- private $hash;
- private $forExclusion;
- private $excludedPrefixes;
- private $globBrace;
- /**
- * @param string $prefix A directory prefix
- * @param string $pattern A glob pattern
- * @param bool $recursive Whether directories should be scanned recursively or not
- *
- * @throws \InvalidArgumentException
- */
- public function __construct(string $prefix, string $pattern, bool $recursive, bool $forExclusion = false, array $excludedPrefixes = [])
- {
- ksort($excludedPrefixes);
- $this->prefix = realpath($prefix) ?: (file_exists($prefix) ? $prefix : false);
- $this->pattern = $pattern;
- $this->recursive = $recursive;
- $this->forExclusion = $forExclusion;
- $this->excludedPrefixes = $excludedPrefixes;
- $this->globBrace = \defined('GLOB_BRACE') ? \GLOB_BRACE : 0;
- if (false === $this->prefix) {
- throw new \InvalidArgumentException(sprintf('The path "%s" does not exist.', $prefix));
- }
- }
- public function getPrefix(): string
- {
- return $this->prefix;
- }
- /**
- * {@inheritdoc}
- */
- public function __toString(): string
- {
- return 'glob.'.$this->prefix.(int) $this->recursive.$this->pattern.(int) $this->forExclusion.implode("\0", $this->excludedPrefixes);
- }
- /**
- * {@inheritdoc}
- */
- public function isFresh(int $timestamp): bool
- {
- $hash = $this->computeHash();
- if (null === $this->hash) {
- $this->hash = $hash;
- }
- return $this->hash === $hash;
- }
- /**
- * @internal
- */
- public function __sleep(): array
- {
- if (null === $this->hash) {
- $this->hash = $this->computeHash();
- }
- return ['prefix', 'pattern', 'recursive', 'hash', 'forExclusion', 'excludedPrefixes'];
- }
- /**
- * @internal
- */
- public function __wakeup(): void
- {
- $this->globBrace = \defined('GLOB_BRACE') ? \GLOB_BRACE : 0;
- }
- public function getIterator(): \Traversable
- {
- if (!file_exists($this->prefix) || (!$this->recursive && '' === $this->pattern)) {
- return;
- }
- $prefix = str_replace('\\', '/', $this->prefix);
- $paths = null;
- if (0 !== strpos($this->prefix, 'phar://') && false === strpos($this->pattern, '/**/')) {
- if ($this->globBrace || false === strpos($this->pattern, '{')) {
- $paths = glob($this->prefix.$this->pattern, \GLOB_NOSORT | $this->globBrace);
- } elseif (false === strpos($this->pattern, '\\') || !preg_match('/\\\\[,{}]/', $this->pattern)) {
- foreach ($this->expandGlob($this->pattern) as $p) {
- $paths[] = glob($this->prefix.$p, \GLOB_NOSORT);
- }
- $paths = array_merge(...$paths);
- }
- }
- if (null !== $paths) {
- sort($paths);
- foreach ($paths as $path) {
- if ($this->excludedPrefixes) {
- $normalizedPath = str_replace('\\', '/', $path);
- do {
- if (isset($this->excludedPrefixes[$dirPath = $normalizedPath])) {
- continue 2;
- }
- } while ($prefix !== $dirPath && $dirPath !== $normalizedPath = \dirname($dirPath));
- }
- if (is_file($path)) {
- yield $path => new \SplFileInfo($path);
- }
- if (!is_dir($path)) {
- continue;
- }
- if ($this->forExclusion) {
- yield $path => new \SplFileInfo($path);
- continue;
- }
- if (!$this->recursive || isset($this->excludedPrefixes[str_replace('\\', '/', $path)])) {
- continue;
- }
- $files = iterator_to_array(new \RecursiveIteratorIterator(
- new \RecursiveCallbackFilterIterator(
- new \RecursiveDirectoryIterator($path, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
- function (\SplFileInfo $file, $path) {
- return !isset($this->excludedPrefixes[str_replace('\\', '/', $path)]) && '.' !== $file->getBasename()[0];
- }
- ),
- \RecursiveIteratorIterator::LEAVES_ONLY
- ));
- uasort($files, 'strnatcmp');
- foreach ($files as $path => $info) {
- if ($info->isFile()) {
- yield $path => $info;
- }
- }
- }
- return;
- }
- if (!class_exists(Finder::class)) {
- throw new \LogicException(sprintf('Extended glob pattern "%s" cannot be used as the Finder component is not installed.', $this->pattern));
- }
- $finder = new Finder();
- $regex = Glob::toRegex($this->pattern);
- if ($this->recursive) {
- $regex = substr_replace($regex, '(/|$)', -2, 1);
- }
- $prefixLen = \strlen($this->prefix);
- foreach ($finder->followLinks()->sortByName()->in($this->prefix) as $path => $info) {
- $normalizedPath = str_replace('\\', '/', $path);
- if (!preg_match($regex, substr($normalizedPath, $prefixLen)) || !$info->isFile()) {
- continue;
- }
- if ($this->excludedPrefixes) {
- do {
- if (isset($this->excludedPrefixes[$dirPath = $normalizedPath])) {
- continue 2;
- }
- } while ($prefix !== $dirPath && $dirPath !== $normalizedPath = \dirname($dirPath));
- }
- yield $path => $info;
- }
- }
- private function computeHash(): string
- {
- $hash = hash_init('md5');
- foreach ($this->getIterator() as $path => $info) {
- hash_update($hash, $path."\n");
- }
- return hash_final($hash);
- }
- private function expandGlob(string $pattern): array
- {
- $segments = preg_split('/\{([^{}]*+)\}/', $pattern, -1, \PREG_SPLIT_DELIM_CAPTURE);
- $paths = [$segments[0]];
- $patterns = [];
- for ($i = 1; $i < \count($segments); $i += 2) {
- $patterns = [];
- foreach (explode(',', $segments[$i]) as $s) {
- foreach ($paths as $p) {
- $patterns[] = $p.$s.$segments[1 + $i];
- }
- }
- $paths = $patterns;
- }
- $j = 0;
- foreach ($patterns as $i => $p) {
- if (false !== strpos($p, '{')) {
- $p = $this->expandGlob($p);
- array_splice($paths, $i + $j, 1, $p);
- $j += \count($p) - 1;
- }
- }
- return $paths;
- }
- }
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