Jenkins - abort running build if new one is started

Question

I use Jenkins and Multibranch Pipeline. I have a job for each active git branch. New build is triggered by push in git repository. What I want is to abort running builds in

Answer 1

Got it to work by having the following script in the Global Shared Library :

import hudson.model.Result
import jenkins.model.CauseOfInterruption.UserInterruption

def killOldBuilds() {
  while(currentBuild.rawBuild.getPreviousBuildInProgress() != null) {
    currentBuild.rawBuild.getPreviousBuildInProgress().doKill()
  }
}

And calling it in my pipeline :

@Library('librayName')
def pipeline = new killOldBuilds()
[...] 
stage 'purge'
pipeline.killOldBuilds()

Edit : Depending on how strongly you want to kill the oldBuild, you can use doStop(), doTerm() or doKill() !