how to get $CAUSE in workflow

Question

Jenkins has a $CAUSE variable available to freestyle build jobs.

How can I access this or something similar in workflow?

My team makes use of it in email out

Answer 1

Looks like as of Jenkins 2.22 (JENKINS-41272), you can access the currentBuild.getBuildCauses() method to get an array of build causes. For example:

environment {
  CAUSE = "${currentBuild.getBuildCauses()[0].shortDescription}"
}

steps {
  echo "Build caused by ${env.CAUSE}"
}