Rescan only a given subfolder or new files

[arximboldi]

Feature Description

Ideally, we would have #6631 and #5630 addressed. But instead, sometimes you know the new files are in a particular subfolder. Instead of triggering a full re-scan, it would be nice to say "rescan only this folder" to find new files. Or maybe an option that could help with speed would be also something like "Scan only new files" instead of checking that existing files are the same and some of the other more expensive tests.

[fwcd]

Not saying anything against this request, but I'm curious: Has rescan performance been an issue for you? My library has around 18k tracks and incremental rescans usually take less than a second (on a reasonably fast SSD)

[ronso0]

How would we select the directory?
Via Computer feature tree? (meeh..)
Or would there be a popup when triggering a rescan, showing a tree of watched dirs, with a checkbox for each dir?

[arximboldi]

Actually I was thinking something like the "Computer" tree, in fact it would be nice to have another tree "Library files" that looks a bit like that but shows only the library folders. You could right-click "refresh", and when you select one of the folders it shows all the files that live anywhere inside that sub-tree. It could also be an interesting way to navigate the library and find music for people that (like me) have huge libraries that also have meaningful organization o disk...

[ronso0]

I think you can already use the 'Quick Links' node for that, no? It's not at the top level, but still.

[fwcd]

I think it's a nice idea actually. Maybe we could just present the music directories beneath the "Missing Tracks" and "Hidden Tracks" nodes:

The "Tracks" node would still display the entire library and the directory tree would then only display the tracks under that directory (and potentially subdirectories). Though it might be an interesting questions whether to use the file system to find the subdirectories and then query the db for tracks in those locations or whether we'd just use the db to infer the entire hierarchy