www.aleph1.co.uk Git - yaffs-website/blob - vendor/symfony/finder/Iterator/ExcludeDirectoryFilterIterator.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Finder\Iterator;
  13
  14 /**
  15  * ExcludeDirectoryFilterIterator filters out directories.
  16  *
  17  * @author Fabien Potencier <fabien@symfony.com>
  18  */
  19 class ExcludeDirectoryFilterIterator extends FilterIterator implements \RecursiveIterator
  20 {
  21     private $iterator;
  22     private $isRecursive;
  23     private $excludedDirs = array();
  24     private $excludedPattern;
  25
  26     /**
  27      * Constructor.
  28      *
  29      * @param \Iterator $iterator    The Iterator to filter
  30      * @param array     $directories An array of directories to exclude
  31      */
  32     public function __construct(\Iterator $iterator, array $directories)
  33     {
  34         $this->iterator = $iterator;
  35         $this->isRecursive = $iterator instanceof \RecursiveIterator;
  36         $patterns = array();
  37         foreach ($directories as $directory) {
  38             $directory = rtrim($directory, '/');
  39             if (!$this->isRecursive || false !== strpos($directory, '/')) {
  40                 $patterns[] = preg_quote($directory, '#');
  41             } else {
  42                 $this->excludedDirs[$directory] = true;
  43             }
  44         }
  45         if ($patterns) {
  46             $this->excludedPattern = '#(?:^|/)(?:'.implode('|', $patterns).')(?:/|$)#';
  47         }
  48
  49         parent::__construct($iterator);
  50     }
  51
  52     /**
  53      * Filters the iterator values.
  54      *
  55      * @return bool True if the value should be kept, false otherwise
  56      */
  57     public function accept()
  58     {
  59         if ($this->isRecursive && isset($this->excludedDirs[$this->getFilename()]) && $this->isDir()) {
  60             return false;
  61         }
  62
  63         if ($this->excludedPattern) {
  64             $path = $this->isDir() ? $this->current()->getRelativePathname() : $this->current()->getRelativePath();
  65             $path = str_replace('\\', '/', $path);
  66
  67             return !preg_match($this->excludedPattern, $path);
  68         }
  69
  70         return true;
  71     }
  72
  73     public function hasChildren()
  74     {
  75         return $this->isRecursive && $this->iterator->hasChildren();
  76     }
  77
  78     public function getChildren()
  79     {
  80         $children = new self($this->iterator->getChildren(), array());
  81         $children->excludedDirs = $this->excludedDirs;
  82         $children->excludedPattern = $this->excludedPattern;
  83
  84         return $children;
  85     }
  86 }