1 | <?php |
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2 | |
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3 | /* |
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4 | * This file is part of the Assetic package, an OpenSky project. |
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5 | * |
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6 | * (c) 2010-2012 OpenSky Project Inc |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |
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12 | namespace Assetic\Factory\Resource; |
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13 | |
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14 | /** |
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15 | * A resource is something formulae can be loaded from. |
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16 | * |
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17 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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18 | */ |
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19 | class DirectoryResource implements IteratorResourceInterface |
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20 | { |
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21 | private $path; |
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22 | private $pattern; |
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23 | |
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24 | /** |
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25 | * Constructor. |
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26 | * |
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27 | * @param string $path A directory path |
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28 | * @param string $pattern A filename pattern |
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29 | */ |
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30 | public function __construct($path, $pattern = null) |
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31 | { |
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32 | if (DIRECTORY_SEPARATOR != substr($path, -1)) { |
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33 | $path .= DIRECTORY_SEPARATOR; |
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34 | } |
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35 | |
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36 | $this->path = $path; |
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37 | $this->pattern = $pattern; |
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38 | } |
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39 | |
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40 | public function isFresh($timestamp) |
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41 | { |
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42 | if (!is_dir($this->path) || filemtime($this->path) > $timestamp) { |
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43 | return false; |
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44 | } |
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45 | |
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46 | foreach ($this as $resource) { |
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47 | if (!$resource->isFresh($timestamp)) { |
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48 | return false; |
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49 | } |
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50 | } |
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51 | |
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52 | return true; |
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53 | } |
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54 | |
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55 | /** |
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56 | * Returns the combined content of all inner resources. |
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57 | */ |
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58 | public function getContent() |
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59 | { |
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60 | $content = array(); |
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61 | foreach ($this as $resource) { |
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62 | $content[] = $resource->getContent(); |
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63 | } |
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64 | |
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65 | return implode("\n", $content); |
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66 | } |
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67 | |
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68 | public function __toString() |
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69 | { |
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70 | return $this->path; |
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71 | } |
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72 | |
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73 | public function getIterator() |
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74 | { |
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75 | return is_dir($this->path) |
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76 | ? new DirectoryResourceIterator($this->getInnerIterator()) |
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77 | : new \EmptyIterator(); |
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78 | } |
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79 | |
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80 | protected function getInnerIterator() |
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81 | { |
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82 | return new DirectoryResourceFilterIterator(new \RecursiveDirectoryIterator($this->path, \RecursiveDirectoryIterator::FOLLOW_SYMLINKS), $this->pattern); |
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83 | } |
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84 | } |
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85 | |
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86 | /** |
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87 | * An iterator that converts file objects into file resources. |
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88 | * |
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89 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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90 | * @access private |
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91 | */ |
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92 | class DirectoryResourceIterator extends \RecursiveIteratorIterator |
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93 | { |
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94 | public function current() |
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95 | { |
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96 | return new FileResource(parent::current()->getPathname()); |
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97 | } |
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98 | } |
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99 | |
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100 | /** |
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101 | * Filters files by a basename pattern. |
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102 | * |
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103 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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104 | * @access private |
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105 | */ |
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106 | class DirectoryResourceFilterIterator extends \RecursiveFilterIterator |
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107 | { |
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108 | protected $pattern; |
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109 | |
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110 | public function __construct(\RecursiveDirectoryIterator $iterator, $pattern = null) |
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111 | { |
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112 | parent::__construct($iterator); |
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113 | |
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114 | $this->pattern = $pattern; |
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115 | } |
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116 | |
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117 | public function accept() |
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118 | { |
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119 | $file = $this->current(); |
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120 | $name = $file->getBasename(); |
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121 | |
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122 | if ($file->isDir()) { |
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123 | return '.' != $name[0]; |
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124 | } |
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125 | |
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126 | return null === $this->pattern || 0 < preg_match($this->pattern, $name); |
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127 | } |
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128 | |
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129 | public function getChildren() |
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130 | { |
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131 | return new self(new \RecursiveDirectoryIterator($this->current()->getPathname(), \RecursiveDirectoryIterator::FOLLOW_SYMLINKS), $this->pattern); |
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132 | } |
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133 | } |
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