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[yaffs-website] / vendor / symfony / config / Resource / GlobResource.php

diff --git a/vendor/symfony/config/Resource/GlobResource.php b/vendor/symfony/config/Resource/GlobResource.php
new file mode 100644 (file)
index 0000000..1edd7cd
--- /dev/null
+++ b/vendor/symfony/config/Resource/GlobResource.php
@@ -0,0 +1,151 @@
+<?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>
+ */
+class GlobResource implements \IteratorAggregate, SelfCheckingResourceInterface, \Serializable
+{
+    private $prefix;
+    private $pattern;
+    private $recursive;
+    private $hash;
+
+    /**
+     * @param string $prefix    A directory prefix
+     * @param string $pattern   A glob pattern
+     * @param bool   $recursive Whether directories should be scanned recursively or not
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct($prefix, $pattern, $recursive)
+    {
+        $this->prefix = realpath($prefix) ?: (file_exists($prefix) ? $prefix : false);
+        $this->pattern = $pattern;
+        $this->recursive = $recursive;
+
+        if (false === $this->prefix) {
+            throw new \InvalidArgumentException(sprintf('The path "%s" does not exist.', $prefix));
+        }
+    }
+
+    public function getPrefix()
+    {
+        return $this->prefix;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        return 'glob.'.$this->prefix.$this->pattern.(int) $this->recursive;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($timestamp)
+    {
+        $hash = $this->computeHash();
+
+        if (null === $this->hash) {
+            $this->hash = $hash;
+        }
+
+        return $this->hash === $hash;
+    }
+
+    public function serialize()
+    {
+        if (null === $this->hash) {
+            $this->hash = $this->computeHash();
+        }
+
+        return serialize(array($this->prefix, $this->pattern, $this->recursive, $this->hash));
+    }
+
+    public function unserialize($serialized)
+    {
+        list($this->prefix, $this->pattern, $this->recursive, $this->hash) = unserialize($serialized);
+    }
+
+    public function getIterator()
+    {
+        if (!file_exists($this->prefix) || (!$this->recursive && '' === $this->pattern)) {
+            return;
+        }
+
+        if (false === strpos($this->pattern, '/**/') && (defined('GLOB_BRACE') || false === strpos($this->pattern, '{'))) {
+            foreach (glob($this->prefix.$this->pattern, defined('GLOB_BRACE') ? GLOB_BRACE : 0) as $path) {
+                if ($this->recursive && is_dir($path)) {
+                    $files = iterator_to_array(new \RecursiveIteratorIterator(
+                        new \RecursiveCallbackFilterIterator(
+                            new \RecursiveDirectoryIterator($path, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
+                            function (\SplFileInfo $file) { return '.' !== $file->getBasename()[0]; }
+                        ),
+                        \RecursiveIteratorIterator::LEAVES_ONLY
+                    ));
+                    uasort($files, function (\SplFileInfo $a, \SplFileInfo $b) {
+                        return (string) $a > (string) $b ? 1 : -1;
+                    });
+
+                    foreach ($files as $path => $info) {
+                        if ($info->isFile()) {
+                            yield $path => $info;
+                        }
+                    }
+                } elseif (is_file($path)) {
+                    yield $path => new \SplFileInfo($path);
+                }
+            }
+
+            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 => $info) {
+            if (preg_match($regex, substr('\\' === \DIRECTORY_SEPARATOR ? str_replace('\\', '/', $path) : $path, $prefixLen)) && $info->isFile()) {
+                yield $path => $info;
+            }
+        }
+    }
+
+    private function computeHash()
+    {
+        $hash = hash_init('md5');
+
+        foreach ($this->getIterator() as $path => $info) {
+            hash_update($hash, $path."\n");
+        }
+
+        return hash_final($hash);
+    }
+}