Jenkins Groovy script: sets a timeout strategy for any job which doesn't have one

jenkins-ensure-timeout.groovy

// This script is for Jenkins' Groovy console, and sets a timeout
// strategy for any job which doesn't have one.
// Based on http://janmaterne.wordpress.com/2010/07/11/how-to-check-if-all-hudson-jobs-have-a-timeout/
// Updated and modified by Sean Flanigan.

import hudson.model.*

String describe(strat) {
  if (strat instanceof hudson.plugins.build_timeout.impl.ElasticTimeOutStrategy) {
    return "Elastic(${strat.timeoutPercentage}, ${strat.numberOfBuilds}, ${strat.timeoutMinutesElasticDefault})"
  } else if (strat instanceof hudson.plugins.build_timeout.impl.AbsoluteTimeOutStrategy) {
      return strat.timeoutMinutes
//  } else if (strat instanceof hudson.plugins.build_timeout.impl.NoActivityTimeOutStrategy) {
//    return "No activity(${strat.timeoutSecondsString})"
  } else {
    return strat?.descriptor?.displayName ?: "null"
  }
}

hudsonInstance = hudson.model.Hudson.instance
allItems = hudsonInstance.allItems
activeJobs = allItems.findAll{job -> job instanceof BuildableItemWithBuildWrappers}
defaultFailBuild = true

println "Current      |  Est. (mins) | Name"
activeJobs.each { job ->
  // Get the Timeout-PlugIn
  wrapper = job.getBuildWrappersList().findAll{ it instanceof hudson.plugins.build_timeout.BuildTimeoutWrapper }[0]

  //String currentTimeoutStr = currentTimeout
  String currentTimeoutStr = describe(wrapper?.strategy)

  // Get the current Timeout, if any
  currentTimeout = (wrapper != null) ? wrapper.timeoutMinutes : ""

  // Calculate a new timeout with a min-value
  est = Math.round(job.estimatedDuration / 1000 / 60)

  // Update the timeout, maybe requires instantiation
  if (wrapper == null) {
    def strat = new hudson.plugins.build_timeout.impl.LikelyStuckTimeOutStrategy()
    // alternative: 8 hours absolute timeout
    // def strat = new hudson.plugins.build_timeout.impl.AbsoluteTimeOutStrategy("480")

    plugin = new hudson.plugins.build_timeout.BuildTimeoutWrapper(strat, defaultFailBuild, true)
    job.getBuildWrappersList().add(plugin)
    action = "established"
  } else {
    // wrapper.timeoutMinutes = defaultTimeout
    // action = "updated"
    action = "unchanged"
  }

  // String preparation for table output
  String estStr = est
  estStr = estStr.padLeft(12)
  currentTimeoutStr = currentTimeoutStr.padRight(12)
  String jobname = job.name.padRight(60)

  // Table output
  println "$currentTimeoutStr | $estStr | $jobname | $action "
}

""

Keeping this in my own forks as it was very useful.