"Show all subfolders" stalls forever if selected folder is a symlink

[zetaPRIME]

As the title states. Specifically, it stalls on "caching images" if the main directory is a symlink.

[anufrievroman]

Interesting! Thank you for reporting.
And when it's not "show all subfolders" it works fine?

Probably, related to the way glob indexes files. We implemented it with @nikolaizombie1 to speed up things, but might need to return to the old way, just with deeper indexing.

[zetaPRIME]

Works fine with normal search; stall also seems to happen with any directory symlink within the tree. If it were only the main directory I'd just say to check and resolve the link first, but given that it's any link, doing a limited recursive search manually seems reasonable. (There may be additional options within glob to test first, though.)

[anufrievroman]

I reimplemented the subfolder system. Now it should not fail, but you'll have to decide the desired depth in the config with the new parameter (it will be automatically added there after the first run). May I ask you to test it because I don't realy have symlink folders at hand?

[nikolaizombie1]

I fixed the bug. It was caused by the fact that glob.glob does not handle symlinks. However, pathlib.Path.glob does but requires more manual filtering and mapping than glob.glob. I tested on a symlinked image folder and it worked correctly.

[anufrievroman]

Okay, I reimplemented things a bit more to keep just one function for everything and remove the obscure "depth" parameter. I think now it should work fine. Basically, now there are two possibilities, either show one level of subfolders or all.