Re: Cheap way to check for new messages in a thread

[Konstantin Ryabitsev <konstantin@linuxfoundation.org>]

On Mon, Mar 27, 2023 at 07:10:49PM +0000, Eric Wong wrote:
> > For the bugzilla integration work I'm doing, I need a way to check if there
> > were any updates to a thread since the last check. Right now, I'm just
> > grabbing the full thread, parsing it and seeing if there are any new
> > message-IDs that we don't know about, but it's very wasteful. Any way to just
> > issue something like "how many messages are in a thread with this message-id"
> > or "are there any updates to a thread with this message-id since
> > YYYYMMDDHHMMSS?
> 
>   lei q -t --only /path/to/(inbox|extindex) mid:$MSGID rt:APPROXIDATE..
> 
> Returns JSON and won't retrieve message bodies from git.

Ah, I was hoping to have a fully remote way of doing this.

> I wouldn't query down to the second due to propagation delays,
> clock skew, etc, though.
> 
> There might be a JMAP endpoint I can implement for WWW which
> only retrieves that info, but getting backreferences (required
> by the JMAP spec) to work properly seemed painful.

What about a "bodiless" atom feed? It's already available per thread, so
perhaps there could be a mode that skips the bodies or trims them after the
first paragraph?

-K