cleanup custom not used workspaces on all jenkins slaves

cleanup_custom_not_used_workspaces.groovy

import jenkins.*
import jenkins.model.*
import hudson.*
import hudson.model.*

def DRY_RUN = false
def DIRS_FILTER = ['.hg', 'production','logs','apache', 'projects', 'qlickview']
def JOBS_WS_ROOT = 'path-to-your-workspaces-root-dir'
def JOBS_IRRELEVANT_SYMBOLS = "[_,-]|\\s"
def allJobs = Jenkins.instance.items.findAll { it instanceof hudson.model.Job }.collect { it.name };
println "All jobs:" + allJobs;
  
for (slave in Jenkins.instance.slaves)
{

  if(slave.computer.online) {
    println "Cleaning old workspaces in " + slave.name+"("+slave.computer.hostName+")"
    def wsRoot = new FilePath(slave.channel, JOBS_WS_ROOT)
    println "starting from:" + wsRoot
    def subdirs = wsRoot.listDirectories();
    //println "subdirs :" + subdirs
    if( subdirs.size() == 0 ) {
      println("  (workspace is empty)");
      continue;
    }
 
    for(d in subdirs) {
   
      // Remove any suffixes from the dir name
      def dirName = d.name.split("@")[0];
      if (DIRS_FILTER.contains(dirName)) {
        continue
      }
      //println "checking matching job for : " + dirName
      // Find matching job
      def jobMatch = allJobs.find { it.replaceAll(JOBS_IRRELEVANT_SYMBOLS,"") == dirName.replaceAll(JOBS_IRRELEVANT_SYMBOLS,"") };
   
      if ( jobMatch != null ) {
        //println("  KEEP: $d --> job:$jobMatch");
      }
      else {
        if( DRY_RUN == true ) {
          println(" DELETE: $d (dryRun)");
        }
        else {
          println("  DELETE: $d");
          d.deleteRecursive();
        }
      }
    }//end of for over subdirs
  }//end of if online
}