Script for Jenkins 'Total build status' job which displays all failed jobs with last changes, committers and links to job's console. It will fail if at least one other Jenkins job is failed. Usage: create Jenkins Freestyle job and add this script as "Execute system Groovy script" build step

jenkins_total_build_status

import jenkins.*
import jenkins.model.*
import hudson.*
import hudson.model.*
import hudson.console.*
import groovy.time.*
import hudson.plugins.git.*

import java.text.SimpleDateFormat 
import java.util.Date

static void main(String []args) {

  Hudson hudson = Jenkins.getInstance()

  def allBuilds = hudson.jobNames.collect { hudson.getJob(it) }

  def failedBuilds = allBuilds.findAll {
    it != null && it.lastBuild != null && it.lastBuild.result != null && !it.disabled && !it.lastBuild.building && it.lastBuild.result == Result.FAILURE
  }

  println "\n\nFAILED JOBS (${failedBuilds.size()}):\n"

  failedBuilds.each { job ->

    AbstractBuild lastBuild = job.lastBuild
    Result lastBuildResult = lastBuild.result

        String jobName = job.name
        String buildNumber = lastBuild.number

        println "============================================================================================"
        link(out, "/job/$jobName/$buildNumber", "$jobName #$buildNumber"); print " - $lastBuildResult "
        print "("; link(out, "/job/$jobName/$buildNumber/consoleFull", "CONSOLE"); print ")";
        // DY: to trigger builds we need a link sending POST requests to JENKINS_URL/job/JOB_NAME/build somehow
        // link(out, "/job/$jobName/build?delay=0sec", job.getBuildNowText()); print "\n\n"
        println "============================================================================================"

        println "Committers since last non-broken build till now: ${lastBuild.culprits}"
        // println "Build variables: ${lastBuild.buildVariables}"

        getGitChangesets(lastBuild).each { chgset ->

          TimeDuration duration = TimeCategory.minus(new Date(), new Date(chgset.timestamp))

          link(out, "/job/$jobName/$buildNumber/consoleFull", "${chgset.commitId.substring(0,7)}");
          print " <${chgset.author}> ${chgset.msg} (${duration.days}d ${duration.hours}h ${duration.minutes}min ago)\n"

          // println "Affected files: "
          // chgset.affectedFiles.each { println it.path; }
        }
        println "============================================================================================\n"
    }
  
  if(!failedBuilds.isEmpty()) {
    throw new AbortException("Build failed")
  }

  return null
}

static void link(PrintStream out, String relativePath, String linkText) {
  out.print(HyperlinkNote.encodeTo(relativePath, linkText))
}

static List<GitChangeSet> getGitChangesets(AbstractBuild build) {  

  List<GitChangeSet> result = new ArrayList<GitChangeSet>();
  List<GitChangeSetList> changesets = build.changeSets

  if (changesets.size() > 0) {
    List<GitChangeSet> gitCommits = changesets.logs
    gitCommits.each { commit ->
      commit.each { chgset ->
        result.add((GitChangeSet) chgset)
      }
    }
  }

  result.sort{a,b -> b.timestamp <=> a.timestamp}
}

Script1.groovy: 66: unable to resolve class GitChangeSet