diff --git a/Jenkinsfile b/Jenkinsfile
index 4b465ad..6e0ad71 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -24,30 +24,12 @@ node {
  
  stage('Checkout') {
       steps {
-		 checkout([$class: 'GitSCM', branches: [[name: '*/master']],
-			userRemoteConfigs: [[url: 'https://git.wmi.amu.edu.pl/s478855/ium_478855.git']]])
+        script {
+           git credentialsId: 'jenkins-user-github', url: 'https://git.wmi.amu.edu.pl/s478855/ium_478855.git'
+           sh "ls -lart ./*" 
+           sh "git branch -a"
+           sh "git checkout master"
+          }
        }
     }
-
- stage('Build') {
-     withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}",
-              "KAGGLE_KEY=${params.KAGGLE_KEY}" ]) {
-		 sh 'echo "BUILD"'
-         sh 'echo KAGGLE_USERNAME: $KAGGLE_USERNAME'
-         //sh 'kaggle datasets list'
-     }
- }
- 
-  stage('Data Preparation') {
-		 sh 'echo "PREPARATION"'
-		 sh "chmod u+x ./preparation.sh"
-         sh "KAGGLE_USERNAME=${KAGGLE_USERNAME} KAGGLE_KEY=${KAGGLE_KEY} CUTOFF=${CUTOFF} ./preparation.sh"
-         archiveArtifacts 'KaggleV2-May-2016.csv'
-     }
- 
-  stage('Statistics') {
-     sh "chmod u+x ./preparation.sh"
-     sh "KAGGLE_USERNAME=${KAGGLE_USERNAME} KAGGLE_KEY=${KAGGLE_KEY} CUTOFF=${CUTOFF} ./preparation.sh"
-     archiveArtifacts 'statistics.csv'
- }
 }