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- 06.01.2017
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ExcludeDirectoryFilterIterator.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * 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 }
87