pipeline {
    agent any 
    stages {
        stage('checkout: Check out from version control') {
            steps {
                git 'https://git.wmi.amu.edu.pl/s434788/ium_434700'
            }
        }
        stage('Goodbye!') {
         steps {
            echo 'Goodbye!'
            //Zarchiwizuj wynik
            archiveArtifacts 'output.txt'
         }
      }
    }
}