Cleanup Old Jenkins builds

jenkins-old-builds-cleanup.groovy

import jenkins.model.Jenkins
import hudson.model.Job

MAX_BUILDS = 3

for (job in Jenkins.instance.items) {
  if(job.name.toLowerCase().endsWith("develop") || job.name.toLowerCase().endsWith("stage")) {
    println "Deleting old builds: " +job.name
    def recent = job.builds.limit(MAX_BUILDS)
    for (build in job.builds) {
      if (!recent.contains(build)) {
        build.delete()
      }
    }
  }
}