Some kind of warning when you are about to quit emacs with running prodigy services

[mbriggs]

Emacs usually tells you when you have subprocesses, but there are a few times when I have quit, totally forgetting that emacs is serving my dev environment. Not a huge deal (just have to rm some pids), but probably not something I would do if it wouldnt let me quit without letting me know im possibly about to be an idiot :)

[rejeep]

This line is what controls that: https://github.com/rejeep/prodigy.el/blob/master/prodigy.el#L997. I think a better solution than to remove that would be to add a hook so that you can remove the pids before quitting. For example:

(prodigy-define-service
  :name "foo"
  :on-kill-emacs
  (lambda ()
    (f-delete (f-join default-directory "tmp" "app.pid") 'force)))