Re: Gnus: caching message headers?

[Gregory Heytings]

> > That did the trick, thank you.  I had some difficulty to set it up, but 
> > now it seems to work.  Is there a way to tell gnus-agent to create only 
> > a cache of headers, that is, to not store a local copy of the emails 
> > that have been read?
>
> I'm really not sure. It might be that you could set agent parameters in 
> such a way that no articles were eligible for downloading. But I'm not 
> sure the "agent cache" obeys the parameters; I have a feeling it just 
> downloads every message you read unconditionally.

A simple and direct way to do what I wanted is:

(defun gnus-agent-do-not-store-article (fun &rest args) "Do nothing") 
(advice-add 'gnus-agent-store-article :around #'gnus-agent-do-not-store-article)