执行以下脚本，使用清理所有Jenkins工作区Groovy：

import hudson.model.* // For each project

for(item in Jenkins.instance.items)      
{ // check that job is not building
    if(!item.isBuilding())     
    { 
         println("Wiping out workspace of job "+item.name)    
         item.doDoWipeOutWorkspace() 
    } else { 
         println("Skipping job "+item.name+", currently building") 
    } 
 }