this post was submitted on 29 May 2024
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Anyone using wayland with $XDG_CACHE_HOME set? (lemmy.ml)
submitted 5 months ago* (last edited 5 months ago) by Samueru@lemmy.ml to c/linux@lemmy.ml
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I'm a i3 user that has been trying to migrate to sway.

I use it with these environment variables:

export XDG_DATA_HOME="$HOME/.local/share"
export XDG_STATE_HOME="$HOME/.local/var/state"
export XDG_CONFIG_HOME="$HOME/.local/config"
export XDG_CACHE_HOME="$HOME/.local/var/cache"

Which gives me a clean home with only ~/.local for my dotfiles.

And issue that I've noticed that I haven't been able to fix is that every time that I start sway, hyprland and also the alpha of cosmic is that I get a new ~/.cache directory created in my home that contains a mesa_shader_cache directory.

Btw in the middle of writing this post I just ran into another bug, thunar for some reason decided to steal my key presses from the web browser, and even though I had the browser window focused as I have sway configured to change the border color of the window with focus, thunar was like nope wtf.

Thank you all for the help, ended up opening a bug report at sway: https://github.com/swaywm/sway/issues/8191

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[–] thingsiplay@beehaw.org 3 points 5 months ago* (last edited 5 months ago) (1 children)

There is also a dedicated "/etc/environment" , but that is systemwide for all users (not sure if this applies to root too). But that is the first in the chain, in case you want test it. Therefore it does not know any variables like $HOME, only hardcoded values.

Edit: Also maybe there are programs that does not respect XDG and have hardcoded paths to ~/.cache. And I am not sure if ~/ has the same value as XDG.

[–] Samueru@lemmy.ml 3 points 5 months ago* (last edited 5 months ago) (2 children)

Also maybe there are programs that does not respect XDG and have hardcoded paths to ~/.cache.

That's what I'm thinking, and it seems that program is all wayland compositors for some reason, there is likely a hardcoded path to ~/.cache what else could be making a ~/.cache/mesa_shader_cache directory when logging in that doesn't happen on X11?

I made sure XDG_CACHE_HOME was set before starting sway and it still happens: https://lemmy.ml/post/16201068/11319192

[–] thingsiplay@beehaw.org 2 points 5 months ago (1 children)

Mesa contains the graphics driver in the Kernel. So maybe this is run very early. Theoretically you could do a workaround and remove that directory with each start, but that's an ugly solution. Does Steam start with your login session? Maybe Proton is creating the cache.

[–] Samueru@lemmy.ml 2 points 5 months ago* (last edited 5 months ago) (1 children)

No steam doesn't run when starting. The same programs when I start i3 which does not have this issue are the same programs that start when I start sway, as sway uses my i3 configuration.

I've also tested hyprland and cosmic and both of those have that issue as well.

Worth mentioning that when I'm on x11 ~/.cache never gets created, even when I run apps that use mesa.

[–] thingsiplay@beehaw.org 2 points 5 months ago (1 children)

I have no ideas left. Also explored a little bit web searches about this topic, but couldn't find anything useful. Sorry, this reply is even less useful.^^

[–] Samueru@lemmy.ml 2 points 5 months ago (1 children)

Wanna know something? I've been trying for about 5 months to fix this issue without success. I appreciate the help.

I haven't bothered to report this because A) I don't know who to report this to as I'm not sure what is creating the directory, and B) I've already reported other issues I've run into when using sway that were just ignored.

[–] thingsiplay@beehaw.org 2 points 5 months ago (1 children)

I know the feeling. Sometimes I have such little things that bugs me for months, sometimes without a resolution. For the reporting stuff, you could just start discussions and ask if its is even related and if you should create an issue. At least if there is a place for.

Now that I think, I just remembered a program that helps with cleaning the home folder: https://github.com/b3nj5m1n/xdg-ninja

[–] Samueru@lemmy.ml 2 points 5 months ago

I have good news, looks like this issue actually just sway only issue, it just happened that on archlinux all the other wayland compositors also have this issue lol. https://lemmy.ml/post/16201068/11320955

Now I know who to report this to.