test

Jenkinsfile

@@ -6,6 +6,7 @@ pipeline {
             steps {
                 sh 'git --version'
                 sh 'printenv'
+                sh '$env.BRANCH_NAME'
             }
         }
         stage('Build Frontend') {

jenkins/buildFrontend.sh

@@ -1,9 +1,11 @@
 #!/usr/bin/env sh
 
 cd ../frontend
-
-echo 'Install neccessary Packages'
-yarn install
-
-echo ''
-yarn run build
+if [$env.BRANCH_NAME = "edit-jenkinsfile"]; then
+    echo 'Install neccessary Packages'
+    yarn install
+    echo 'Build Frontend for Production'
+    yarn run build
+else
+    echo 'Not in master Branch'
+fi