Constraint
6 years ago
Comparator.php
6 years ago
Semver.php
6 years ago
VersionParser.php
6 years ago
Semver.php
128 lines
| 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * This file is part of composer/semver. |
| 5 | * |
| 6 | * (c) Composer <https://github.com/composer> |
| 7 | * |
| 8 | * For the full copyright and license information, please view |
| 9 | * the LICENSE file that was distributed with this source code. |
| 10 | */ |
| 11 | |
| 12 | namespace Composer\Semver; |
| 13 | |
| 14 | use Composer\Semver\Constraint\Constraint; |
| 15 | |
| 16 | class Semver |
| 17 | { |
| 18 | const SORT_ASC = 1; |
| 19 | const SORT_DESC = -1; |
| 20 | |
| 21 | /** @var VersionParser */ |
| 22 | private static $versionParser; |
| 23 | |
| 24 | /** |
| 25 | * Determine if given version satisfies given constraints. |
| 26 | * |
| 27 | * @param string $version |
| 28 | * @param string $constraints |
| 29 | * |
| 30 | * @return bool |
| 31 | */ |
| 32 | public static function satisfies($version, $constraints) |
| 33 | { |
| 34 | if (null === self::$versionParser) { |
| 35 | self::$versionParser = new VersionParser(); |
| 36 | } |
| 37 | |
| 38 | $versionParser = self::$versionParser; |
| 39 | $provider = new Constraint('==', $versionParser->normalize($version)); |
| 40 | $constraints = $versionParser->parseConstraints($constraints); |
| 41 | |
| 42 | return $constraints->matches($provider); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Return all versions that satisfy given constraints. |
| 47 | * |
| 48 | * @param array $versions |
| 49 | * @param string $constraints |
| 50 | * |
| 51 | * @return array |
| 52 | */ |
| 53 | public static function satisfiedBy(array $versions, $constraints) |
| 54 | { |
| 55 | $versions = array_filter($versions, function ($version) use ($constraints) { |
| 56 | return Semver::satisfies($version, $constraints); |
| 57 | }); |
| 58 | |
| 59 | return array_values($versions); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Sort given array of versions. |
| 64 | * |
| 65 | * @param array $versions |
| 66 | * |
| 67 | * @return array |
| 68 | */ |
| 69 | public static function sort(array $versions) |
| 70 | { |
| 71 | return self::usort($versions, self::SORT_ASC); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Sort given array of versions in reverse. |
| 76 | * |
| 77 | * @param array $versions |
| 78 | * |
| 79 | * @return array |
| 80 | */ |
| 81 | public static function rsort(array $versions) |
| 82 | { |
| 83 | return self::usort($versions, self::SORT_DESC); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * @param array $versions |
| 88 | * @param int $direction |
| 89 | * |
| 90 | * @return array |
| 91 | */ |
| 92 | private static function usort(array $versions, $direction) |
| 93 | { |
| 94 | if (null === self::$versionParser) { |
| 95 | self::$versionParser = new VersionParser(); |
| 96 | } |
| 97 | |
| 98 | $versionParser = self::$versionParser; |
| 99 | $normalized = array(); |
| 100 | |
| 101 | // Normalize outside of usort() scope for minor performance increase. |
| 102 | // Creates an array of arrays: [[normalized, key], ...] |
| 103 | foreach ($versions as $key => $version) { |
| 104 | $normalized[] = array($versionParser->normalize($version), $key); |
| 105 | } |
| 106 | |
| 107 | usort($normalized, function (array $left, array $right) use ($direction) { |
| 108 | if ($left[0] === $right[0]) { |
| 109 | return 0; |
| 110 | } |
| 111 | |
| 112 | if (Comparator::lessThan($left[0], $right[0])) { |
| 113 | return -$direction; |
| 114 | } |
| 115 | |
| 116 | return $direction; |
| 117 | }); |
| 118 | |
| 119 | // Recreate input array, using the original indexes which are now in sorted order. |
| 120 | $sorted = array(); |
| 121 | foreach ($normalized as $item) { |
| 122 | $sorted[] = $versions[$item[1]]; |
| 123 | } |
| 124 | |
| 125 | return $sorted; |
| 126 | } |
| 127 | } |
| 128 |