NoopInstaller.php

<?php

declare (strict_types=1);

/*
 * 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\Installer;

use Composer\Repository\InstalledRepositoryInterface;
use Composer\Package\PackageInterface;

/**
 * Does not install anything but marks packages installed in the repo
 *
 * Useful for dry runs
 *
 * @author Jordi Boggiano <j.boggiano@seld.be>
 */
class NoopInstaller implements InstallerInterface {
    
    /**
     * @inheritDoc
     */
    public function supports(string $packageType) {
        return true;
    }
    
    /**
     * @inheritDoc
     */
    public function isInstalled(InstalledRepositoryInterface $repo, PackageInterface $package) {
        return $repo->hasPackage($package);
    }
    
    /**
     * @inheritDoc
     */
    public function download(PackageInterface $package, ?PackageInterface $prevPackage = null) {
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function prepare($type, PackageInterface $package, ?PackageInterface $prevPackage = null) {
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function cleanup($type, PackageInterface $package, ?PackageInterface $prevPackage = null) {
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function install(InstalledRepositoryInterface $repo, PackageInterface $package) {
        if (!$repo->hasPackage($package)) {
            $repo->addPackage(clone $package);
        }
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function update(InstalledRepositoryInterface $repo, PackageInterface $initial, PackageInterface $target) {
        if (!$repo->hasPackage($initial)) {
            throw new \InvalidArgumentException('Package is not installed: ' . $initial);
        }
        $repo->removePackage($initial);
        if (!$repo->hasPackage($target)) {
            $repo->addPackage(clone $target);
        }
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function uninstall(InstalledRepositoryInterface $repo, PackageInterface $package) {
        if (!$repo->hasPackage($package)) {
            throw new \InvalidArgumentException('Package is not installed: ' . $package);
        }
        $repo->removePackage($package);
        return \React\Promise\resolve(null);
    }
    
    /**
     * @inheritDoc
     */
    public function getInstallPath(PackageInterface $package) {
        $targetDir = $package->getTargetDir();
        return $package->getPrettyName() . ($targetDir ? '/' . $targetDir : '');
    }

}