How to prevent going to sleep to finish pre-sleep tasks?

[mrdc]

Hello!

Trying to make a small script for pre-sleep tasks. I've tried hs.task.waitUntilExit() after hs.task.new("/Users/USER/do_before_sleep", nil):start() but macOS (14.2.1) enters sleep prior tasks are finished.

Is it possible to accomplish with Hammerspoon?

Here is my code:

function caffeinateWatcher(eventType)
    if (eventType == hs.caffeinate.watcher.systemWillSleep) then
        print ("WillSleep...")
        -- Execute sleep script
        hs.task.new("/Users/YOURNAME/.sleep", nil):start()
    elseif (eventType == hs.caffeinate.watcher.systemDidWake) then
        print ("Woken...")
        -- Execute wake script
       hs.task.new("/Users/YOURNAME/.wakeup", nil):start()
     end
end
sleepWatcher = hs.caffeinate.watcher.new(caffeinateWatcher)
sleepWatcher:start()