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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 = [];
24 private $excludedPattern;
25
26 /**
27 * @param \Iterator $iterator The Iterator to filter
28 * @param string[] $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 $patterns = [];
35 foreach ($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(), []);
79 $children->excludedDirs = $this->excludedDirs;
80 $children->excludedPattern = $this->excludedPattern;
81
82 return $children;
83 }
84 }
85