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<?php |
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declare(strict_types = 1); |
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namespace SemVer\SemVer; |
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final class PreReleaseComparator |
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{ |
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public function __invoke() |
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{ |
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dump('ok'); |
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} |
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/** |
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* @param Version $version1 |
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* @param Version $version2 |
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* |
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* @return int |
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*/ |
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public static function compare(Version $version1, Version $version2) : int |
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{ |
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$preRelease1 = $version1->getPreRelease(); |
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$preRelease2 = $version2->getPreRelease(); |
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$leftPreReleaseIsEmpty = '' === $preRelease1; |
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$rightPreReleaseIsEmpty = '' === $preRelease2; |
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if ($rightPreReleaseIsEmpty !== $leftPreReleaseIsEmpty) { |
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return $leftPreReleaseIsEmpty ? 1 : -1; |
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} |
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if ($leftPreReleaseIsEmpty) { |
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return 0; |
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} |
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return self::compareIdentifiers(explode('.', $preRelease1), explode('.', $preRelease2)); |
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} |
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/** |
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* @param array $preReleaseIdentifiers1 |
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* @param array $preReleaseIdentifiers2 |
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* |
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* @return int |
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*/ |
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private static function compareIdentifiers(array $preReleaseIdentifiers1, array $preReleaseIdentifiers2) : int |
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{ |
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do { |
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$preReleasePart1 = array_shift($preReleaseIdentifiers1); |
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$preReleasePart2 = array_shift($preReleaseIdentifiers2); |
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if (null === $preReleasePart1) { |
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return -1; |
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} |
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if (null === $preReleasePart2) { |
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return 1; |
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} |
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$compare = self::compareIdentifier($preReleasePart1, $preReleasePart2); |
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} while (0 === $compare && (count($preReleaseIdentifiers1) || count($preReleaseIdentifiers2))); |
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return $compare; |
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} |
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/** |
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* @param string $preReleasePart1 |
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* @param string $preReleasePart2 |
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* |
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* @return int |
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*/ |
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private static function compareIdentifier(string $preReleasePart1, string $preReleasePart2) : int |
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{ |
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$mineIsInt = self::isInt($preReleasePart1); |
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$theirIsInt = self::isInt($preReleasePart2); |
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if ($mineIsInt !== $theirIsInt) { |
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return $mineIsInt ? -1 : 1; |
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} |
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if ($mineIsInt) { |
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return ((int)$preReleasePart1) <=> ((int)$preReleasePart2); |
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} |
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return $preReleasePart1 <=> $preReleasePart2; |
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} |
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/** |
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* @param string $identifier |
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* |
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* @return bool |
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*/ |
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private static function isInt(string $identifier) |
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{ |
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return ctype_digit($identifier) && strpos($identifier, '00') !== 0; |
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} |
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} |
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git-pull-request /
php-semver
