post statement only if changes

Jenkinsfile

@@ -63,6 +63,8 @@ pipeline {
     // }
 
     post {
+        def hasChanges = currentBuild?.rawBuild?.changeSets?.any { it.items && it.items.length > 0 }
+        if (hasChanges) {
             success {
                 echo 'Pipeline erfolgreich!'
                 discordSend description: "Running ${env.BUILD_ID} on ${env.JENKINS_URL}, ${params.GIT_REF}", footer: 'Pipeline succeeded', link: env.BUILD_URL, result: currentBuild.currentResult, title: env.JOB_NAME, webhookURL: 'https://discordapp.com/api/webhooks/1389470542691831819/NdMO17sLBG2dplp_-oh6Ff0cbPOoADl0QwXKM9UzduxU44av_ZQkQjKTmpdK7YuwcZDc'
@@ -74,3 +76,4 @@ pipeline {
             }
         }
     }
+}