Request: offline thumbnail processor

[xvdp]

I use qimgv to view folders with hundreds of images. Id like to be able to preprocess thumbnails for selected folders offline.

For my use case itd be great to be able to run it on specific folders: - eg. $ qimgv <folder> --thumbs
or even $ qimgv <folder> --thumbs --recursive
Ideally run on background so as to not hog all cpus

Some other people may want to always have some folders constantly preprocessed in which case it could be a preference - but depending on how you handle that you may not want to do it lest it eats up lots of memory, Id be happy with just the former option.