[Feature] Separate thumbs storage location by quality

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request.


• Yes

The feature


We now have 3 qualities of thumbs:
• thumbnail
• preview
• fullsize

Users may want to use flash storage for some but not all of these files. For example, on my system, the thumbnail WEBPs take 3 GB, while the preview JPEGs take 60 GB. Moving the thumbnails to an SSD would greatly improve the timeline experience.

Proposed solution: migrate thumbs to 3 subfolders:
• thumbs/thumbnail/<user UUIDs>
• thumbs/preview/<user UUIDs>
• thumbs/fullsize/<user UUIDs>

In this way users can mount varying storage to the subfolders and mix flash and HDD storage. This shouldn't be a breaking change, and we can use the Storage Migration job.

Platform


• Server
• Web
• Mobile