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<?php |
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namespace PackageVersions; |
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/** |
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* @internal |
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* |
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* This is a fallback for {@see \PackageVersions\Versions::getVersion()} |
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* Do not use this class directly: it is intended to be only used when |
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* {@see \PackageVersions\Versions} fails to be generated, which typically |
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* happens when running composer with `--no-scripts` flag) |
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*/ |
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final class FallbackVersions |
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{ |
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const ROOT_PACKAGE_NAME = 'unknown/root-package@UNKNOWN'; |
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private function __construct() |
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{ |
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} |
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/** |
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* @param string $packageName |
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* |
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* @return string |
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* |
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* @throws \OutOfBoundsException if a version cannot be located |
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* @throws \UnexpectedValueException if the composer.lock file could not be located |
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*/ |
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public static function getVersion(string $packageName) : string |
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{ |
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$versions = iterator_to_array(self::getVersions(self::getComposerLockPath())); |
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if (! array_key_exists($packageName, $versions)) { |
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throw new \OutOfBoundsException( |
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'Required package "' . $packageName . '" is not installed: cannot detect its version' |
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); |
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} |
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return $versions[$packageName]; |
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} |
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/** |
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* @return string |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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private static function getComposerLockPath() : string |
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{ |
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// bold assumption, but there's not here to fix everyone's problems. |
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$checkedPaths = [__DIR__ . '/../../../../../composer.lock', __DIR__ . '/../../composer.lock']; |
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foreach ($checkedPaths as $path) { |
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if (file_exists($path)) { |
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return $path; |
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} |
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} |
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throw new \UnexpectedValueException(sprintf( |
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'PackageVersions could not locate your `composer.lock` location. This is assumed to be in %s. ' |
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. 'If you customized your composer vendor directory and ran composer installation with --no-scripts, ' |
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1 |
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. 'then you are on your own, and we can\'t really help you. Fix your shit and cut the tooling some slack.', |
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1 |
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json_encode($checkedPaths) |
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)); |
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} |
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private static function getVersions(string $composerLockFile) : \Generator |
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{ |
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$lockData = json_decode(file_get_contents($composerLockFile), true); |
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$lockData['packages-dev'] = $lockData['packages-dev'] ?? []; |
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foreach (array_merge($lockData['packages'], $lockData['packages-dev']) as $package) { |
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yield $package['name'] => $package['version'] . '@' . ( |
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$package['source']['reference']?? $package['dist']['reference'] ?? '' |
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); |
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} |
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yield self::ROOT_PACKAGE_NAME; |
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} |
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} |
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Ocramius /
PackageVersions
