Re: icalendar file sync

Hi Marco,

the Mozilla Calendar plugin (plugins/sunbird_plugin), which you can 
download from CVS works directly with .ics files. It can use both local 
.ics files and files on a WebDAV server, and should be able to also read 
and write .ics files from other applications. It is not 100% finished 
yet, but I use it everyday and it seems to work fine. Of course you are 
welcome to test it out with other applications' .ics files and report 
your results.

When the first version of OpenSync is released I will port this plugin 
to the OpenSync API. At this time it should also be discussed if there 
should be another name for the plugin, e.g. "ICS plugin". Armin 
suggested to create two versions of the plugin, one specific to Mozilla 
Calendar (which reads Mozilla Calendar's config files), and one for 
arbitrary ICS files (which must be configured manually). At the moment 
I'm more in favor of a single plugin which knows how to deal with 
multiple applications, but can optionally be configured manually.

One reason why a generic .ics plugin isn't high priority is that it is 
always better to use a sync API than write to the .ics files directly. 
For example, Mozilla Calendar will not update its display when the 
underlying .ics file changes, you have to refresh it manually. Also, 
there are synchronisation issues with server-based .ics files (WebDAV), 
because Mozilla Calendar doesn't implement proper locking. So I see the 
Mozilla Calendar plugin (= .ics plugin) more as a workaround for 
applications that don't have a proper sync api yet.


Markus


Marco schrieb:

> Hi
>
> Recently I found out, that lots of Calendar clients use an Ical file 
> as  storage. Or can at least work with this file type. I was wondering 
> why nobody is writing a general Ical Multisync plugin. like this we 
> can open that file with different calendar clients and don't have to 
> worry about the application.
>
> What do you think about this?
>
> Thanks for feedback
>
>
> Marco
>
>
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