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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\Finder\Iterator;
/**
* ExcludeDirectoryFilterIterator filters out directories.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ExcludeDirectoryFilterIterator extends \FilterIterator implements \RecursiveIterator
{
private $iterator;
private $isRecursive;
private $excludedDirs = array();
private $excludedPattern;
/**
* @param \Iterator $iterator The Iterator to filter
* @param array $directories An array of directories to exclude
*/
public function __construct(\Iterator $iterator, array $directories)
{
$this->iterator = $iterator;
$this->isRecursive = $iterator instanceof \RecursiveIterator;
$patterns = array();
foreach ($directories as $directory) {
$directory = rtrim($directory, '/');
if (!$this->isRecursive || false !== strpos($directory, '/')) {
$patterns[] = preg_quote($directory, '#');
} else {
$this->excludedDirs[$directory] = true;
}
}
if ($patterns) {
$this->excludedPattern = '#(?:^|/)(?:'.implode('|', $patterns).')(?:/|$)#';
}
parent::__construct($iterator);
}
/**
* Filters the iterator values.
*
* @return bool True if the value should be kept, false otherwise
*/
public function accept()
{
if ($this->isRecursive && isset($this->excludedDirs[$this->getFilename()]) && $this->isDir()) {
return false;
}
if ($this->excludedPattern) {
$path = $this->isDir() ? $this->current()->getRelativePathname() : $this->current()->getRelativePath();
$path = str_replace('\\', '/', $path);
return !preg_match($this->excludedPattern, $path);
}
return true;
}
public function hasChildren()
{
return $this->isRecursive && $this->iterator->hasChildren();
}
public function getChildren()
{
$children = new self($this->iterator->getChildren(), array());
$children->excludedDirs = $this->excludedDirs;
$children->excludedPattern = $this->excludedPattern;
return $children;
}
}