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<?php |
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declare(strict_types=1); |
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namespace Eclipxe\XmlResourceRetriever; |
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7
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class Utils |
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{ |
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/** |
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* Return the relative path from one location to other |
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* |
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* @param string $sourceFile |
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* @param string $destinationFile |
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* @return string |
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*/ |
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public static function relativePath(string $sourceFile, string $destinationFile): string |
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{ |
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$source = static::simplifyPath($sourceFile); |
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$destination = static::simplifyPath($destinationFile); |
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if ('' !== $source[0] && '' === $destination[0]) { |
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1 |
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return implode('/', $destination); |
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} |
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// remove the common path |
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10 |
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foreach ($source as $depth => $dir) { |
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if (isset($destination[$depth])) { |
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if ($dir === $destination[$depth]) { |
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unset($destination[$depth]); |
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unset($source[$depth]); |
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} else { |
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break; |
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} |
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} |
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} |
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// add '..' to the beginning of the source as required by the count of from |
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10 |
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$fromCount = count($source); |
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10 |
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for ($i = 0; $i < $fromCount - 1; $i++) { |
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array_unshift($destination, '..'); |
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} |
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return implode('/', $destination); |
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} |
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/** |
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* Simplify a path and return its parts as an array |
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* |
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* @param string $path |
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* @return string[] |
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*/ |
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27 |
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public static function simplifyPath(string $path): array |
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{ |
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$parts = explode('/', str_replace('//', '/./', $path)); |
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$count = count($parts); |
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for ($i = 0; $i < $count; $i = $i + 1) { |
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// is .. and previous is not .. |
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if ($i > 0 && '..' === $parts[$i] && '..' !== $parts[$i - 1]) { |
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unset($parts[$i - 1]); |
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unset($parts[$i]); |
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return static::simplifyPath(implode('/', $parts)); |
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} |
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// is inner '.' |
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if ('.' == $parts[$i]) { |
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9 |
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unset($parts[$i]); |
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return static::simplifyPath(implode('/', $parts)); |
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} |
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} |
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return $parts; |
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} |
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} |
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eclipxe13 /
XmlResourceRetriever
