The options are weird, some just don’t make any sense, the descriptions are weird, and it doesn’t work like advertised. It’s a mess, tbh.
OK, let’s take them aone after the other:
- “auto”. This one would make sense, if it would work. However, my partition is full with 125GB, I’m using only 14GB, the trashbin is full of files older than 4 months. So clearly not deleting for need of space nor for age.
- “D, auto”. Clearly doesn’t make sense. It deletes, quote, “anytime” when space needed, so wouldn’t respect the D in that case. Respects D intrinsically, when space is not needed. Doesn’t do anything automatically after D. The D in that list seems useless. It’s possible though the D is a strict minimum and the “anytime” is wrong wording.
- “auto, D” - similar to auto if set to “auto, 30”, albeit with enforced deletion after 30d. Therefore would make sense if it worked. I’m trying this out atm.
- “D1, D2” clearly doesn’t make sense. Deletes after D2, doesn’t do anything different for before and after D1. D1 in that list even less (potentially) meaningful as D in “D, auto”.
- “disabled” well, that one is clear. On my system, it seems to be active. Maybe it’s the true default.
If some of these options only work with quotas, it should clearly say so. The “when needed” part may rely on that. Though I wouldn’t know why a maximum retention setting should only work with quotas.
So the documentation is wrong and/or incomplete, and some of the options don’t make sense, and/or it doesn’t work like configured and advertised. Could be a useful app, the trashbin retention is one of the features I advertise Nextcloud with. (It may not sound like it, but I’m, in general, happy with Nextcloud. However, the Trashbin keeps blowing up, and that is somewhat painful.)