composer/src/Composer/Plugin/PluginInterface.php

<?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\Plugin;

use Composer\Composer;

/**
 * Plugin interface
 *
 * @author Nils Adermann <naderman@naderman.de>
 */
interface PluginInterface
{
    /**
     * Apply plugin modifications to the passed in composer object
     *
     * @param Composer $composer
     */
    public function activate(Composer $composer);
}