manage-slaves.groovy

hudson = Hudson.instance

for (slave in hudson.slaves) {
  def computer = slave.computer
  if (slave.getComputer().isTemporarilyOffline()) {
    if (!slave.getComputer().getOfflineCause().toString().contains("toggled by")) {
      computer.setTemporarilyOffline(false, slave.getComputer().getOfflineCause())
    }
  } else {
    slave.computer.connect(true)
  }
}