Puli\Manager\Installer\ModuleFileInstallerManager::persistInstallersData PHP Method

    private function persistInstallersData()
    {
        $data = array();
        foreach ($this->rootInstallerDescriptors as $installerName => $installer) {
            $data[$installerName] = $this->installerToData($installer);
        }
        if ($data) {
            $this->rootModuleFileManager->setExtraKey(self::INSTALLERS_KEY, (object) $data);
        } else {
            $this->rootModuleFileManager->removeExtraKey(self::INSTALLERS_KEY);
        }
    }