psd: add missing module config options

[TheStachelfisch]

Description

This change adds configurable options to psd and creates the corresponding config file, it also adds missing packages to the envPath.
Previously the config file would not be automatically created, which broke psd and made it not function like it should.

I added config options that I think are relevant. I deliberately left out options like USE_OVERLAYFS and USE_SUSPSYNC as they have additional dependencies that would need to have assertions to check if they are met.

Closes #5454

Checklist

• Change is backwards compatible.

• Code formatted with ./format.

• Code tested through nix-shell --pure tests -A run.all or nix develop --ignore-environment .#all using Flakes.

• Test cases updated/added. See example.

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Maintainer CC

@danjujan

[danjujan]

LGTM. I also gave it a try yesterday (danjujan@0ba5192) but you created your PR quicker 😃 .
I agree with you about leaving the USE_OVERLAYFS and USE_SUSPSYNC options out for now. We can still add them later if someone needs them and can test their requirements.

[TheStachelfisch]

@rycee Can this be merged? I've been trying it out for the past few weeks and it's been working flawlessly.
Without this PR, psd does not work at all.

[danjujan]

@TheStachelfisch I think the pipeline is stuck. Could you please trigger it again?

[TheStachelfisch]

@TheStachelfisch I think the pipeline is stuck. Could you please trigger it again?

Please, go ahead

[danjujan]

I do not have any permissions to trigger it. You could update your branch to run it again.

[danjujan]

@rycee this fixes #5454 and works since three months. Please have a look.

[TheStachelfisch]

Another bump, please have a look @rycee

[trueNAHO]

Without this patchset, psd-resync.service fails with mkdir: command not found, resulting in psd not working:

$ systemctl status --user psd-resync.service
○ psd-resync.service - Timed profile resync
     Loaded: loaded (/home/<USER>/.config/systemd/user/psd-resync.service; enabled; preset: enabled)
     Active: inactive (dead) since [...]
TriggeredBy: ● psd-resync.timer
   Main PID: [487993] (code=exited, status=0/SUCCESS)
        CPU: 7ms

[...] systemd[1789]: Starting Timed profile resync...
[...] profile-sync-daemon[488000]: /nix/store/2d2c22cr9s56ib72m88yzp80255vzpfx-profile-sync-daemon-6.50/bin/profile-sync-daemon: line 105: mkdir: command not found
[...] profile-sync-daemon[487993]:  First time running psd so please edit /home/<USER>/.config/psd/psd.conf to your liking and run again.
[...] systemd[1789]: Finished Timed profile resync.

This patchset resolves this issue and allows psd to populate its required tmpfs.

[TheStachelfisch]

Closing in favor to creating a new pull request as the pipeline is clearly stuck and no manual feedback from someone with write access is expected.