jenkins-clenup.groovy

import jenkins.model.Jenkins

Jenkins.instanceOrNull.allItems(hudson.model.Job).each { job ->
    if (job.isBuildable() && job.supportsLogRotator() && job.getProperty(jenkins.model.BuildDiscarderProperty) == null) {
        println "Processing \"${job.fullDisplayName}\""
        try {
          job.setBuildDiscarder(new hudson.tasks.LogRotator ( 14, -1, 14, -1))
          println "${job.fullName} is updated"
        } catch (Exception e) {
          // Some implementation like for example the hudson.matrix.MatrixConfiguration supports a LogRotator but not setting it
          println "[WARNING] Failed to update ${job.fullName} of type ${job.class} : ${e}"
        }
    }
}
return;