Proton Tricks not finding library if there is a case mismatch with Steam

[Variapolis]

Describe the bug
Proton Tricks will not find the correct directory if there is a mismatch in the library .vdf file. This was discovered by myself after I cleaned up my naming convention for my drive mount locations, which resulted in one of my drives being changed to a lowercase version of the same name.

To Reproduce
Steps to reproduce the behavior:

1. Mount a steam library drive with a name e.g. /mnt/FOO
2. Add library to steam and run a game
3. Run Proton Tricks and observe that the game appears
4. Remount drive with inverted case e.g. /mnt/foo
5. Observe that steam successfully finds and shows games, however Proton Tricks does not.

Expected behavior
Proton Tricks and Steam can either both find the library or not.

System:

• Distro: Arch Linux
• Protontricks installation method: Flatpak and/or AUR
• Protontricks version: 1.13.0
• Steam version: check No beta

Additional context
Considered writing this as a bug report for steam, but since Proton Tricks is mimicking Steam's behavior, I figured it would be easier to report here first. This was a very confusing issue to debug, even a warning or some kind of fall back check and suggestion for the user would be a nice change.

[Matoking]

Thanks for the report. Yes, Steam seems to tolerate a bunch of nonsense and Protontricks tries to do the same whenever it's not too much trouble. There's already a case-insensitive check for the steamapps directory inside the library folder. ;)

I pushed a preliminary fix to case_insensitive_library_discovery branch; could you try installing and checking if it solves the issue? Since you're using Arch, the fastest way might be to install it using pipx:

$ sudo pacman -S python-pip python-pipx python-setuptools python-virtualenv
$ pipx install git+https://github.com/Matoking/protontricks.git@case_insensitive_library_discovery
$ ~/.local/bin/protontricks -v --gui
# You can remove Protontricks once you've checked
$ pipx uninstall protontricks

This should solve the issue in case the Steam library folder name matches case-insensitively. Hopefully that's enough.

[Variapolis]

I have been away from home the past month but I will try this out when I am back and will report back! Thanks :)