Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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18 | final class FilesystemPath |
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19 | { |
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20 | /** @var string */ |
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21 | private $absolutePath; |
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22 | /** @var string */ |
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23 | private $originalPath; |
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24 | /** @var bool */ |
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25 | private $isWindows; |
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26 | |||
27 | /** |
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28 | * @param string $filePath |
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29 | * @param string $dirSep |
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30 | */ |
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31 | 12 | public function __construct($filePath, $dirSep = DIRECTORY_SEPARATOR) |
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43 | |||
44 | 10 | public function __toString() |
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48 | |||
49 | /** |
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50 | * Append a path to a directory path. |
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51 | * |
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52 | * @param string $append The path to append |
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53 | */ |
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54 | 5 | public function appendToPath($append) |
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63 | |||
64 | /** |
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65 | * Generate a path based off this file path. |
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66 | * |
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67 | * This method will not modify the existing file path of this instance, use FilesystemPath::appendToPath() for that. |
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68 | * |
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69 | * @param string $append |
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70 | * |
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71 | * @return string |
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72 | */ |
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73 | public function generatePath($append) |
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74 | { |
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75 | return $this->buildPath($this->absolutePath, $this->unixifyPath($append)); |
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76 | } |
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77 | |||
78 | /** |
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79 | * Get the absolute path of the file path. |
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80 | * |
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81 | * @return string |
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82 | */ |
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83 | 10 | public function getAbsolutePath() |
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92 | |||
93 | /** |
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94 | * Check whether the given path is a directory. |
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95 | * |
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96 | * @param bool $checkExistence When set to true, it will check the filesystem for the existence of the directory. |
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97 | * When set to false, this function will guess based on the path ending in a directory |
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98 | * separator. |
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99 | * |
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100 | * @return bool |
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101 | */ |
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102 | 6 | public function isDir($checkExistence = true) |
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103 | { |
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104 | 6 | $absPath = $this->absolutePath; |
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105 | |||
106 | 6 | if ($checkExistence) |
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107 | { |
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108 | return file_exists($absPath) && is_dir($absPath); |
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109 | } |
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110 | |||
111 | 6 | return substr($absPath, -1, 1) == '/'; |
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112 | } |
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113 | |||
114 | /** |
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115 | * Check whether the given path is a file. |
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116 | * |
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117 | * @param bool $checkExistence When set to true, it will check the filesystem for the existence of the file. When |
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118 | * set to false, this function will guess based on the path ending in a directory |
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119 | * separator. |
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120 | * |
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121 | * @return bool |
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122 | */ |
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123 | 5 | public function isFile($checkExistence = true) |
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134 | |||
135 | /** |
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136 | * Build a path from multiple strings. |
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137 | * |
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138 | * This function will _always_ use the '/' as the directory separator, because internal that's all stakx will use. |
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139 | * The FilesystemPath::getAbsolutePath() function will worry about Windows paths when necessary. |
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140 | * |
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141 | * @return string |
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142 | */ |
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143 | 4 | View Code Duplication | private function buildPath() |
157 | |||
158 | /** |
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159 | * Convert a Windows path into a blasphemous Unix path. |
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160 | * |
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161 | * @param string $filePath |
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162 | * |
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163 | * @return string |
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164 | */ |
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165 | 4 | private function unixifyPath($filePath) |
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169 | } |
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170 |