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<?php /* * This file is part of Composer. * * (c) Nils Adermann <[email protected]> * Jordi Boggiano <[email protected]> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Util; use Composer\Downloader\DownloaderInterface; use Composer\Package\PackageInterface; use React\Promise\PromiseInterface; class SyncHelper { /** * Helps you download + install a single package in a synchronous way * * This executes all the required steps and waits for promises to complete * * @param Loop $loop Loop instance which you can get from $composer->getLoop() * @param DownloaderInterface $downloader Downloader instance you can get from $composer->getDownloadManager()->getDownloader('zip') for example * @param string $path the installation path for the package * @param PackageInterface $package the package to install * @param PackageInterface|null $prevPackage the previous package if this is an update and not an initial installation */ public static function downloadAndInstallPackageSync(Loop $loop, DownloaderInterface $downloader, $path, PackageInterface $package, PackageInterface $prevPackage = null) { $type = $prevPackage ? 'update' : 'install'; try { self::await($loop, $downloader->download($package, $path, $prevPackage)); self::await($loop, $downloader->prepare($type, $package, $path, $prevPackage)); if ($type === 'update') { self::await($loop, $downloader->update($package, $path, $prevPackage)); } else { self::await($loop, $downloader->install($package, $path)); } } catch (\Exception $e) { self::await($loop, $downloader->cleanup($type, $package, $path, $prevPackage)); throw $e; } self::await($loop, $downloader->cleanup($type, $package, $path, $prevPackage)); } /** * Waits for a promise to resolve * * @param Loop $loop Loop instance which you can get from $composer->getLoop() * @param PromiseInterface|null $promise */ public static function await(Loop $loop, PromiseInterface $promise = null) { if ($promise) { $loop->wait(array($promise)); } } }