protected function fillJenkins() : self
    {
        if (isset($this->env['JENKINS_URL']) && isset($this->env['BUILD_NUMBER'])) {
            $this->readEnv['CI_BUILD_NUMBER'] = $this->env['BUILD_NUMBER'];
            $this->readEnv['CI_BUILD_URL'] = $this->env['JENKINS_URL'];
            $this->env['CI_NAME'] = 'jenkins';

            // backup
            $this->readEnv['BUILD_NUMBER'] = $this->env['BUILD_NUMBER'];
            $this->readEnv['JENKINS_URL'] = $this->env['JENKINS_URL'];
            $this->readEnv['CI_NAME'] = $this->env['CI_NAME'];
        }

        return $this;
    }