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- Veröffentlicht
- 28.08.2024
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FallbackVersions.php
001 <?php
002
003 declare(strict_types=1);
004
005 namespace PackageVersions;
006
007 use Generator;
008 use OutOfBoundsException;
009 use UnexpectedValueException;
010 use function array_key_exists;
011 use function array_merge;
012 use function basename;
013 use function file_exists;
014 use function file_get_contents;
015 use function getcwd;
016 use function iterator_to_array;
017 use function json_decode;
018 use function json_encode;
019 use function sprintf;
020
021 /**
022 * @internal
023 *
024 * This is a fallback for {@see \PackageVersions\Versions::getVersion()}
025 * Do not use this class directly: it is intended to be only used when
026 * {@see \PackageVersions\Versions} fails to be generated, which typically
027 * happens when running composer with `--no-scripts` flag)
028 */
029 final class FallbackVersions
030 {
031 const ROOT_PACKAGE_NAME = 'unknown/root-package@UNKNOWN';
032
033 private function __construct()
034 {
035 }
036
037 /**
038 * @throws OutOfBoundsException If a version cannot be located.
039 * @throws UnexpectedValueException If the composer.lock file could not be located.
040 */
041 public static function getVersion(string $packageName): string
042 {
043 $versions = iterator_to_array(self::getVersions(self::getPackageData()));
044
045 if (! array_key_exists($packageName, $versions)) {
046 throw new OutOfBoundsException(
047 'Required package "' . $packageName . '" is not installed: check your ./vendor/composer/installed.json and/or ./composer.lock files'
048 );
049 }
050
051 return $versions[$packageName];
052 }
053
054 /**
055 * @return mixed[]
056 *
057 * @throws UnexpectedValueException
058 */
059 private static function getPackageData(): array
060 {
061 $checkedPaths = [
062 // The top-level project's ./vendor/composer/installed.json
063 getcwd() . '/vendor/composer/installed.json',
064 __DIR__ . '/../../../../composer/installed.json',
065 // The top-level project's ./composer.lock
066 getcwd() . '/composer.lock',
067 __DIR__ . '/../../../../../composer.lock',
068 // This package's composer.lock
069 __DIR__ . '/../../composer.lock',
070 ];
071
072 $packageData = [];
073 foreach ($checkedPaths as $path) {
074 if (! file_exists($path)) {
075 continue;
076 }
077
078 $data = json_decode(file_get_contents($path), true);
079 switch (basename($path)) {
080 case 'installed.json':
081 // composer 2.x installed.json format
082 if (isset($data['packages'])) {
083 $packageData[] = $data['packages'];
084 } else {
085 // composer 1.x installed.json format
086 $packageData[] = $data;
087 }
088
089 break;
090 case 'composer.lock':
091 $packageData[] = $data['packages'] + ($data['packages-dev'] ?? []);
092 break;
093 default:
094 // intentionally left blank
095 }
096 }
097
098 if ($packageData !== []) {
099 return array_merge(...$packageData);
100 }
101
102 throw new UnexpectedValueException(sprintf(
103 'PackageVersions could not locate the `vendor/composer/installed.json` or your `composer.lock` '
104 . 'location. This is assumed to be in %s. If you customized your composer vendor directory and ran composer '
105 . 'installation with --no-scripts, or if you deployed without the required composer files, PackageVersions '
106 . 'can\'t detect installed versions.',
107 json_encode($checkedPaths)
108 ));
109 }
110
111 /**
112 * @param mixed[] $packageData
113 *
114 * @return Generator&string[]
115 *
116 * @psalm-return Generator<string, string>
117 */
118 private static function getVersions(array $packageData): Generator
119 {
120 foreach ($packageData as $package) {
121 yield $package['name'] => $package['version'] . '@' . (
122 $package['source']['reference'] ?? $package['dist']['reference'] ?? ''
123 );
124 }
125
126 yield self::ROOT_PACKAGE_NAME => self::ROOT_PACKAGE_NAME;
127 }
128 }
129