cleanViewOnAllNodes.groovy

void cleanNode(Node node, item_to_wipe) {
  workspacePath = node.getWorkspaceFor(item_to_wipe)
  if(!workspacePath){
    println("    Failed to find workspace path on ${node.name}.")
    return
  }

  if (workspacePath.exists())
  {
    try {
    	workspacePath.deleteRecursive()
        println("    Deleted from ${node.name}")
    }
    catch(IOException e){
      pathAsString = workspacePath.getRemote()
      println("    Failed to delete from ${node.name} (location ${pathAsString}")
    }
  }
}

def projects=Jenkins.instance.getView(" HEAD")
for (project in projects.items) {
  println("${project.name}:")
  for (node in Jenkins.instance.getNodes()) {
      cleanNode(node, project)
  }  
}