Am Tue, 17 Jan 2023 10:30:07 +0000
schrieb Ihor Radchenko <yantar92@posteo.net>:

> Detlef Steuer <steuer@hsu-hh.de> writes:
> 
> >> The patch only allows to the TTL globally for all the calendars.
> >> However, it would make sense to specify TTL on per-file basis.
> >> WDYT? 
> >
> > Hmm. Surely it would be useful to have the option to use different
> > TTL settings for different calendar exports, yes.
> >
> > The next question would be, if org-icalendar-combine-agenda-files is
> > called and the files have different per-file settings, which will be
> > used?  
> 
> The only sane way would be using the global default.
> 
> > May be single file org-icalendar-export-to-ics and
> > org-icalender-export-agenda-files use an existing per-file setting,
> > global setting otherwise, but org-icalendar-combine-agenda-files
> > always uses the global setting?  
> 
> Agree.
> 
> To achieve this you just need to update the export option settings:
> 
>     (:icalendar-ttl nil nil org-icalendar-ttl)
> 
> adding a file keyword to be used.
> See `org-export-options-alist' docstring.
> 

Hi Ihor, 

I hope I understood your advice and the docstring and examples in other
exporters correctly. Is it really that easy?

Next iteration of the patch.

Detlef