external process modifying buffers

[Ken Mankoff <mankoff@gmail.com>]

Hi,

I'd like to have my Mac iCal events appear in my agenda. I was using
org-mac-iCal for this without problem, but it doesn't parse things as
well as the external python ical2org program
(http://www.doughellmann.com/projects/ical2org/).

Right now I'm running ical2org via cron and re-generating iCal.org
(redirecting stdout with ">"). When I try to regenerate the agenda,
emacs complains:

iCal.org changed on disk; really edit the buffer? (y, n, r or C-h)

So... How to I get around this?

Is there a flag to tell emacs (org org-mode) to not worry about a
buffer changing?

I don't think I can kill the buffer from the cron command because I'm
not using emacs server so I don't know how to communicate with this
specific emacs instance.

Or should I drop cron and use emacs (run-at-time) to run this, killing
the iCal.org buffer before I do so? I've tried this and have the
following setup. It appears to work, but after I get split-screen and
the output of the shell command. How to do this method tidier?

(defun kdm/kill-iCal-buffer ()
  (setq list (mapcar (function buffer-name) (buffer-list)))
  (mapc
   (lambda (x)
     (if (string-match "^iCal" x)
		 (kill-buffer x)))
   list))
(defun kdm/iCal ()
  (kdm/kill-iCal-buffer) ; remove the buffer
  (shell-command "ical2org>iCal.org")
  )
(run-at-time "03:30" 3600 '(lambda () (kdm/iCal)))
(kdm/iCal) ; testing

Any other solutions or advice?

Thanks,

  -k.