Pointers needed: How do I write a multisync plugin?

Hi all multisync developers!

I want to write a multisync plugin to provide syncronization with 
Mozilla Calendar .ics files. I've been looking into the evolution plugin 
source, and I think I've worked out now what kind of data I can expect 
from multisync, what kind of data I need to provide back to multisync, 
and I believe I know algorithmically what I need to do with my .ics 
files. The main problem for me is figuring out just how to write a 
multisync plugin.

I would gratefully accept any kinds of pointers that could help me write 
any kind of plugin, say for example just a plugin that merely appends 
all changes it recieves from the other plugin to a file (i.e. logs them 
:-) and always reports one specified change (or possibly one or more 
changes just read straight off some specified file).

If someone could kick me off that far I'll be fine with the rest. If 
such a plugin exists (or could be made, possibly by me :-) and would be 
published somewhere suitable I think it could provide a very useful aid 
to other would-be plugin developers such as myself. Wouldn't that be 
just plain good all around?

I know you guys might already be previously engaged in OpenSync 
development and may therefore not be overly enthusiastic about getting 
involved in a multisync plugin project at this time, but I'm guessing 
that you all might already have implemented some version of that 
rudimentary plugin at some point of development of your own plugins. In 
other words, I'm hoping that this shouldn't require much work, and it 
would probably make a lot of people a little happier.

Anyhow, I'll be happy for any and all help that I'd get. If any of you 
knows of some M for me to FR I'd be delighted to know which one that 
would be.

Thanks for your time!
/Joel Hedlund


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