Version 1

[yaffs-website] / vendor / symfony / finder / Iterator / RecursiveDirectoryIterator.php

diff --git a/vendor/symfony/finder/Iterator/RecursiveDirectoryIterator.php b/vendor/symfony/finder/Iterator/RecursiveDirectoryIterator.php
new file mode 100644 (file)
index 0000000..1df2f50
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+++ b/vendor/symfony/finder/Iterator/RecursiveDirectoryIterator.php
@@ -0,0 +1,156 @@
+<?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\Finder\Iterator;
+
+use Symfony\Component\Finder\Exception\AccessDeniedException;
+use Symfony\Component\Finder\SplFileInfo;
+
+/**
+ * Extends the \RecursiveDirectoryIterator to support relative paths.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
+{
+    /**
+     * @var bool
+     */
+    private $ignoreUnreadableDirs;
+
+    /**
+     * @var bool
+     */
+    private $rewindable;
+
+    // these 3 properties take part of the performance optimization to avoid redoing the same work in all iterations
+    private $rootPath;
+    private $subPath;
+    private $directorySeparator = '/';
+
+    /**
+     * Constructor.
+     *
+     * @param string $path
+     * @param int    $flags
+     * @param bool   $ignoreUnreadableDirs
+     *
+     * @throws \RuntimeException
+     */
+    public function __construct($path, $flags, $ignoreUnreadableDirs = false)
+    {
+        if ($flags & (self::CURRENT_AS_PATHNAME | self::CURRENT_AS_SELF)) {
+            throw new \RuntimeException('This iterator only support returning current as fileinfo.');
+        }
+
+        parent::__construct($path, $flags);
+        $this->ignoreUnreadableDirs = $ignoreUnreadableDirs;
+        $this->rootPath = (string) $path;
+        if ('/' !== DIRECTORY_SEPARATOR && !($flags & self::UNIX_PATHS)) {
+            $this->directorySeparator = DIRECTORY_SEPARATOR;
+        }
+    }
+
+    /**
+     * Return an instance of SplFileInfo with support for relative paths.
+     *
+     * @return SplFileInfo File information
+     */
+    public function current()
+    {
+        // the logic here avoids redoing the same work in all iterations
+
+        if (null === $subPathname = $this->subPath) {
+            $subPathname = $this->subPath = (string) $this->getSubPath();
+        }
+        if ('' !== $subPathname) {
+            $subPathname .= $this->directorySeparator;
+        }
+        $subPathname .= $this->getFilename();
+
+        return new SplFileInfo($this->rootPath.$this->directorySeparator.$subPathname, $this->subPath, $subPathname);
+    }
+
+    /**
+     * @return \RecursiveIterator
+     *
+     * @throws AccessDeniedException
+     */
+    public function getChildren()
+    {
+        try {
+            $children = parent::getChildren();
+
+            if ($children instanceof self) {
+                // parent method will call the constructor with default arguments, so unreadable dirs won't be ignored anymore
+                $children->ignoreUnreadableDirs = $this->ignoreUnreadableDirs;
+
+                // performance optimization to avoid redoing the same work in all children
+                $children->rewindable = &$this->rewindable;
+                $children->rootPath = $this->rootPath;
+            }
+
+            return $children;
+        } catch (\UnexpectedValueException $e) {
+            if ($this->ignoreUnreadableDirs) {
+                // If directory is unreadable and finder is set to ignore it, a fake empty content is returned.
+                return new \RecursiveArrayIterator(array());
+            } else {
+                throw new AccessDeniedException($e->getMessage(), $e->getCode(), $e);
+            }
+        }
+    }
+
+    /**
+     * Do nothing for non rewindable stream.
+     */
+    public function rewind()
+    {
+        if (false === $this->isRewindable()) {
+            return;
+        }
+
+        // @see https://bugs.php.net/68557
+        if (PHP_VERSION_ID < 50523 || PHP_VERSION_ID >= 50600 && PHP_VERSION_ID < 50607) {
+            parent::next();
+        }
+
+        parent::rewind();
+    }
+
+    /**
+     * Checks if the stream is rewindable.
+     *
+     * @return bool true when the stream is rewindable, false otherwise
+     */
+    public function isRewindable()
+    {
+        if (null !== $this->rewindable) {
+            return $this->rewindable;
+        }
+
+        // workaround for an HHVM bug, should be removed when https://github.com/facebook/hhvm/issues/7281 is fixed
+        if ('' === $this->getPath()) {
+            return $this->rewindable = false;
+        }
+
+        if (false !== $stream = @opendir($this->getPath())) {
+            $infos = stream_get_meta_data($stream);
+            closedir($stream);
+
+            if ($infos['seekable']) {
+                return $this->rewindable = true;
+            }
+        }
+
+        return $this->rewindable = false;
+    }
+}