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<?php |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2014, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Instrument; |
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/** |
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* Special class for resolving path for different file systems, wrappers, etc |
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* |
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* @see http://stackoverflow.com/questions/4049856/replace-phps-realpath/4050444 |
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* @see http://bugs.php.net/bug.php?id=52769 |
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*/ |
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class PathResolver |
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{ |
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/** |
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* Custom replacement for realpath() and stream_resolve_include_path() |
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* |
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* @param string|array $somePath Path without normalization or array of paths |
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* @param bool $shouldCheckExistence Flag for checking existence of resolved filename |
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* |
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* @return array|bool|string |
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*/ |
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public static function realpath($somePath, $shouldCheckExistence = false) |
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{ |
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// Do not resolve empty string/false/arrays into the current path |
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if (!$somePath) { |
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return $somePath; |
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} |
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if (is_array($somePath)) { |
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return array_map(array(__CLASS__, __FUNCTION__), $somePath); |
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} |
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// Trick to get scheme name and path in one action. If no scheme, then there will be only one part |
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$components = explode('://', $somePath, 2); |
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list ($pathScheme, $path) = isset($components[1]) ? $components : array(null, $components[0]); |
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// Optimization to bypass complex logic for simple paths (eg. not in phar archives) |
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if (!$pathScheme && ($fastPath = stream_resolve_include_path($somePath))) { |
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return $fastPath; |
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} |
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$isRelative = !$pathScheme && ($path[0] !== '/') && ($path[1] !== ':'); |
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if ($isRelative) { |
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$path = getcwd() . DIRECTORY_SEPARATOR . $path; |
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} |
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// resolve path parts (single dot, double dot and double delimiters) |
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$path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $path); |
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if (strpos($path, '.') !== false) { |
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$parts = explode(DIRECTORY_SEPARATOR, $path); |
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$absolutes = []; |
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foreach ($parts as $part) { |
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if ('.' == $part) { |
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continue; |
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} elseif ('..' == $part) { |
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array_pop($absolutes); |
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} else { |
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$absolutes[] = $part; |
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} |
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} |
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$path = implode(DIRECTORY_SEPARATOR, $absolutes); |
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} |
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if ($pathScheme) { |
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$path = "{$pathScheme}://{$path}"; |
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} |
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if ($shouldCheckExistence && !file_exists($path)) { |
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return false; |
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} |
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return $path; |
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} |
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} |
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goaop /
framework
