Viewing file:  SyncHelper.php (2.41 KB) -rw-r--r--
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<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* 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, $prevPackage));
}
} 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));
}
}
}
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