Re: ask for help

[tomas]

On Tue, Apr 19, 2022 at 09:11:48PM +0900, Xiang Ruan wrote:
> Hi, Philip
> 
> Thank you for the quick response.
> 
> Actually, I follow the below blog 
> https://pragmaticemacs.wordpress.com/2017/01/09/how-i-view-my-google-calendar-agenda-in-emacs/
> to view my google calendar agenda in Emacs.
> 
> My cron updates google calendar's agenda to a local file every minute, and I 
> use the above “open-gcal-agenda" command to show the agenda in a buffer(the 
> buffer will open with name "gcal")
> What I want to do is, when the local file is updated by cron, I need Emacs 
> automatically execute "open-gcal-agenda" to update the "gcal" agenda buffer.

The easiest way would be to activate auto-revert minor mode
on the buffer showing this file (M-x auto-revert-mode)

For the more general case (or if you want full flexibility)
there is file-notify-add-watch, for example, which would
call a function provided by you whenever anything happens
to a file.

Cheers
-- 
t

signature.asc
Description: PGP signature