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      * @param \Iterator $iterator    The Iterator to filter
  28      * @param array     $directories An array of directories to exclude
  29      */
  30     public function __construct(\Iterator $iterator, array $directories)
  31     {
  32         $this->iterator = $iterator;
  33         $this->isRecursive = $iterator instanceof \RecursiveIterator;
  34         $patterns = array();
  35         foreach ($directories as $directory) {
  36             $directory = rtrim($directory, '/');
  37             if (!$this->isRecursive || false !== strpos($directory, '/')) {
  38                 $patterns[] = preg_quote($directory, '#');
  39             } else {
  40                 $this->excludedDirs[$directory] = true;
  41             }
  42         }
  43         if ($patterns) {
  44             $this->excludedPattern = '#(?:^|/)(?:'.implode('|', $patterns).')(?:/|$)#';
  45         }
  46
  47         parent::__construct($iterator);
  48     }
  49
  50     /**
  51      * Filters the iterator values.
  52      *
  53      * @return bool True if the value should be kept, false otherwise
  54      */
  55     public function accept()
  56     {
  57         if ($this->isRecursive && isset($this->excludedDirs[$this->getFilename()]) && $this->isDir()) {
  58             return false;
  59         }
  60
  61         if ($this->excludedPattern) {
  62             $path = $this->isDir() ? $this->current()->getRelativePathname() : $this->current()->getRelativePath();
  63             $path = str_replace('\\', '/', $path);
  64
  65             return !preg_match($this->excludedPattern, $path);
  66         }
  67
  68         return true;
  69     }
  70
  71     public function hasChildren()
  72     {
  73         return $this->isRecursive && $this->iterator->hasChildren();
  74     }
  75
  76     public function getChildren()
  77     {
  78         $children = new self($this->iterator->getChildren(), array());
  79         $children->excludedDirs = $this->excludedDirs;
  80         $children->excludedPattern = $this->excludedPattern;
  81
  82         return $children;
  83     }
  84 }