PrePluginInstallEvent example

    public function installPlugin(Plugin $plugin)
    {
        $pluginBootstrap = $this->getPluginByName($plugin->getName());

        $context = new InstallContext($plugin, $this->release->getVersion(), $plugin->getVersion());

        $this->requirementValidator->validate($pluginBootstrap->getPath() . '/plugin.xml', $this->release->getVersion());

        $this->events->notify(PluginEvent::PRE_INSTALL, new PrePluginInstallEvent($context, $pluginBootstrap));
        $this->installResources($pluginBootstrap, $plugin);

        // Makes sure the version is updated in the db after a re-installation         if ($plugin->getUpdateVersion() && $this->hasInfoNewerVersion($plugin->getUpdateVersion(), $plugin->getVersion())) {
            $plugin->setVersion($plugin->getUpdateVersion());
        }

        $this->em->flush($plugin);

        $this->applyMigrations($pluginBootstrap, AbstractPluginMigration::MODUS_INSTALL);