Re: Caching IMAP articles

[Xavier Maillard]

On 11 oct 2004, Simon Josefsson wrote:

> Xavier Maillard <zedek@gnu-rox.org> writes:
> 
> > On 11 oct 2004, Simon Josefsson wrote:
> > 
> > > Edi Weitz <spamtrap@agharta.de> writes:
> > > 
> > > > I'm reading mail on my laptop from a remote IMAP server.
> > > > The remote server is at home on an ADSL line which is
> > > > kind of slow upstream, and sometimes I'm even offline.
> > > > So, I'm looking for a solution to keep my IMAP server but
> > > > make mail reading faster if I'm not at home. I've used
> > > > offlineimap[1] for a while but I didn't really like this
> > > > setup.
> > > > 
> > > > Now I thought that maybe this might be doable with Gnus
> > > > alone. What I want is the following: Every IMAP message
> > > > that I've read with Gnus should be stored locally.
> > > > Whenever I try to read this message again, whether online
> > > > or offline, Gnus should fetch it from the local storage
> > > > and don't contact the IMAP server again.
> > > 
> > > These are my agent configuration to achieve this:
> > > 
> > > '(gnus-agent-consider-all-articles t)
> > > '(gnus-agent-enable-expiration (quote DISABLE))
> > 
> > Sorry to bother, but why do you disable agent expiration ?
> 
> Because disk is cheaper than bandwidth. Also because with
> g-a-c-a-a enabled, otherwise the agent would re-download
> articles every time, and then expire them immediately, as well.

Oh I see. My guess is I am lost with all the agent, cache,
no-cache, backlog, ... Not speaking of expiration which is
somewhat hard to master. How do you expire articles then ?

Agent doesn't expire any article in your configuration so what if
you mark an article as expirable ?

> > Why can't I expire articles in the agent without having it
> > trying to download articles again and again... ?
> 
> Perhaps you could modify the agent predicate to not download
> articles that would be expired.

Hmm, yes I think it may not be too difficult (even for a Lisp
beginner I am).
-- 
Hito no kokoro wa kawareru mono