Where to set XDG_CACHE_HOME?

[Marek Greško]

Hello,

I am trying to find out where to set XDG_CACHE_HOME in Fedora 43 for plasma correctly.

I have setup an environment where users have home directories on a nfs share. I wanted to create local directory for XDG_CACHE_HOME. So I created a file /etc/profile.d/nss-cache.sh containing

#!/bin/bash

CACHEDIR="/home/local/${USER}"

if [[ "${HOME}" =~ ^/home/domain/.* ]]; then
export NSS_SDB_USE_CACHE=yes
if [ -w "${CACHEDIR}" ]; then
export XDG_CACHE_HOME="${CACHEDIR}/.cache"
fi
fi

But it was not doing anything. Then I found out it works when I run some applications from the terminal, so I realized plasma does not use /etc/profile.d. Thereafter I tried to copy the file into the /etc/xdg/plasma-workspace/env/ directory. It mostly works. But I get the mesa_shader_cache directory created in the $HOME/.cache and also in the $XDG_CACHE_HOME. I think this is because the directory is created prior to runing the script in /etc/xdg/plasma-workspace/env, and then aft4er loading the file the directory is created again.

Do you have any clue where should be the script run from to be started soon enough I do not have the $HOME/.cache/mesa_shader_cache created?

Thanks

Marek
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