~rjarry/aerc#2: imap: add support for header cache/index

It would be nice to have something similar to what {neo,}mutt has:

https://gitlab.com/muttmua/mutt/-/wikis/MuttGuide/Caching

It is a requirement for sorting emails by threads (based on In-reply-to headers).

Status: REPORTED
Submitter: ~rjarry
Assigned to: No-one
Submitted: 6 months ago
Updated: 3 months ago
Labels: feature imap

~rjarry added feature 6 months ago

~rjarry referenced this from #4 6 months ago

~rjarry added imap 6 months ago

~rjarry 3 months ago

Some random thoughts:

Possible candidates for a key-value lib:

https://github.com/syndtr/goleveldb

https://github.com/peterbourgon/diskv

IMAP messages are identified by a UID, this would be the "key" and the "value" would be the headers of that message.

For threading support, we need another index where the "key" is the Message-ID header value, and "value" is the whole headers of the message. Duplicate values from the UID cache, but I don't think there is a way around this. Having such an index would eliminate the need for IMAP THREAD support. Also, it could be reused for Maildir threading support.