Jenkins delete builds older than latest 20 builds for all jobs

Question

I am in the process of cleaning up Jenkins (it was setup incorrectly) and I need to delete builds that are older than the latest 20 builds for every job.

Is there an

Answer 1

For Multibranch Pipelines, I modified the script by Dave Bacher a bit. Use this to delete builds older than the latest 20 build of "master" branches:

MAX_BUILDS = 20

for (job in Jenkins.instance.items) {
  if(job instanceof jenkins.branch.MultiBranchProject) {
    job = job.getJob("master")
    def recent = job.builds.limit(MAX_BUILDS)
    for (build in job.builds) {
      if (!recent.contains(build)) {
        println "Preparing to delete: " + build
        // build.delete()
      }
    }
  }
}