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<?php
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namespace BringYourOwnIdeas\UpdateChecker;
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use BringYourOwnIdeas\Maintenance\Util\ComposerLoader;
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use Composer\Composer;
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use Composer\DependencyResolver\Pool;
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use Composer\Package\BasePackage;
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use Composer\Package\PackageInterface;
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use Composer\Package\Version\VersionSelector;
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use Composer\Repository\CompositeRepository;
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use SilverStripe\Core\Injector\Injector;
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/**
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* The update checker class is provided a {@link Link} object representing a package and uses the Composer API to
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* determine the next available updates for the package.
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*/
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class UpdateChecker
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{
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/**
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* @var VersionSelector
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*/
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protected $versionSelector;
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/**
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* Update types (see {@link ComposerPackageVersion}
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*
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* @var string
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*/
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const TYPE_AVAILABLE = 'Available';
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const TYPE_LATEST = 'Latest';
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/**
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* Checks the given package for available and latest updates, and writes them to data models if found
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*
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* @param PackageInterface $package
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* @param string $constraint
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* @return string[]
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*/
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public function checkForUpdates(PackageInterface $package, $constraint)
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{
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$installedVersion = $package->getPrettyVersion();
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/** @var Composer $composer */
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$composer = Injector::inst()->get(ComposerLoader::class)->getComposer();
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$updateInformation = [
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'Version' => $installedVersion,
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'VersionHash' => $package->getSourceReference(),
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'VersionConstraint' => $constraint,
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];
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if ($available = $this->findLatestPackage($package, $constraint, $installedVersion, $composer, true)) {
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$updateInformation[self::TYPE_AVAILABLE . 'Version'] = $available->getPrettyVersion();
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$updateInformation[self::TYPE_AVAILABLE . 'Hash'] = $available->getSourceReference();
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}
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if ($latest = $this->findLatestPackage($package, $constraint, $installedVersion, $composer, false)) {
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$updateInformation[self::TYPE_LATEST . 'Version'] = $latest->getPrettyVersion();
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$updateInformation[self::TYPE_LATEST . 'Hash'] = $latest->getSourceReference();
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}
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return $updateInformation;
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}
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/**
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* @param Composer $composer
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* @return VersionSelector
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*/
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protected function getVersionSelector(Composer $composer)
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{
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if (!$this->versionSelector) {
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// Instantiate a new repository pool, providing the stability flags from the project
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$pool = new Pool(
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$composer->getPackage()->getMinimumStability(),
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$composer->getPackage()->getStabilityFlags()
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);
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$pool->addRepository(new CompositeRepository($composer->getRepositoryManager()->getRepositories()));
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$this->versionSelector = new VersionSelector($pool);
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}
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return $this->versionSelector;
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}
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/**
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* Given a package, this finds the latest package matching it
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*
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* Based on Composer's ShowCommand::findLatestPackage
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*
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* @param PackageInterface $package
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* @param string $constraint
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* @param string $installedVersion
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* @param Composer $composer
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* @param bool $minorOnly
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* @return bool|PackageInterface
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*/
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protected function findLatestPackage(
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PackageInterface $package,
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$constraint,
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$installedVersion,
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Composer $composer,
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$minorOnly = false
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) {
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// find the latest version allowed in this pool
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$name = $package->getName();
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$versionSelector = $this->getVersionSelector($composer);
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$stability = $composer->getPackage()->getMinimumStability();
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$flags = $composer->getPackage()->getStabilityFlags();
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if (isset($flags[$name])) {
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$stability = array_search($flags[$name], BasePackage::$stabilities, true);
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}
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$bestStability = $stability;
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if ($composer->getPackage()->getPreferStable()) {
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$bestStability = $composer->getPackage()->getStability();
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}
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$targetVersion = null;
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if (0 === strpos($installedVersion, 'dev-')) {
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$targetVersion = $installedVersion;
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}
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if ($targetVersion === null && $minorOnly) {
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// Use the semver constraint to determine the next available version
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$targetVersion = $constraint;
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}
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return $versionSelector->findBestCandidate($name, $targetVersion, null, $bestStability);
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}
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}
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emteknetnz