Jenkins Groovy script to set CredentialsId

jenkins-set-credis.groovy

import hudson.model.*
import hudson.maven.*
import hudson.tasks.*
import hudson.scm.*

def match_url = "http://svn.mycorp.com/svn/devops"

for(item in Hudson.instance.items) {
  hasClaim = false;
  if (item.scm instanceof SubversionSCM)
  {
      for(location in item.scm.locations) {
        
        if (location.remote.startsWith(match_url)) {
          println("\n@@@@@@@@@@@@@@@@@")
          println("\njob $item.name")
          println("\n@@@@@@@@@@@@@@@@@")
        
          println("\nlocation $location.remote")
          credid = location.credentialsId
         
          if (credid != null)
            println("\ncredid $credid")
         }
      }
  } 
}