fever update to accomodate id generation by freshrss

[CosmosAtlas]

• OS version: NA
• emacs version: NA
• elfeed version: NA
• elfeed-protocol version: eaf1329ff221098eb6d4709245010d070c89b173
• curl version: NA
• server version: (https://hub.docker.com/r/linuxserver/freshrss) (docker image and tag)
• is variable elfeed-protocol-xxx-feeds empty: no

elfeed-log

NA

error backtrace

NA

Behavior

When currently using a fever feed from FreshRss, update won't show new items.

Root cause

Upon inspection, elfeed-protocol-fever-update basically just fetches 50 new entries based on the last-entry-id. However, FreshRss generates its id by Unix time (some irrelevant discussion here, but covers how the id is implemented).

So it means that, realistically, the update function will never generate new entry ids (given it only generates ids within 50/1000 of a second...)

Suggested fix

I'm not familiar with elisp enough to fix this personally, but below are some highlevel ideas.

• Use the fever unread_item_ids as used in init

Side Note

With unread_item_ids from fever, it would be possible to match with local database, so that read status can be synced the other way around as requested by #38 . Meaning that if a current unread item doesn't exists in fever's new unread_item_ids it can be marked as read.

[fasheng]

Thanks for your report. Here is a workaround for it, if works, just close the issue:

(setq elfeed-protocol-fever-update-unread-only t)

[CosmosAtlas]

Can confirm the work around works for me. Thank you for the quick response!