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nixos/ups: add envvars for interactive use #341080

Merged
merged 2 commits into from
Sep 11, 2024
Merged

nixos/ups: add envvars for interactive use #341080

merged 2 commits into from
Sep 11, 2024

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bjornfor
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Description of changes

Set environment variables that fix running upsdrvctl interactively.

Things done

  • Built on platform(s)
    • x86_64-linux
    • aarch64-linux
    • x86_64-darwin
    • aarch64-darwin
  • For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
    • sandbox = relaxed
    • sandbox = true
  • Tested, as applicable:
  • Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
  • Tested basic functionality of all binary files (usually in ./result/bin/)
  • 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
    • (Package updates) Added a release notes entry if the change is major or breaking
    • (Module updates) Added a release notes entry if the change is significant
    • (Module addition) Added a release notes entry if adding a new NixOS module
  • Fits CONTRIBUTING.md.

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@bjornfor
nixos/ups: deduplicate environment variables
bddea23 
No functional change, but more DRY.
@bjornfor
nixos/ups: set env vars in the global environment
3682979 
This allows using upsdrvctl interactively, which otherwise tries to use
a missing ups.conf in the Nix store, instead of the correct
/etc/nut/ups.conf.
@bjornfor bjornfor added backport release-24.05 Backport PR automatically labels Sep 10, 2024
philiptaron
philiptaron approved these changes Sep 11, 2024
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Sure. It seems like this should be in the derivation for nut itself, but sure.

Majiir
Majiir approved these changes Sep 11, 2024
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Sure.

My thought exactly. 😄

Out of curiosity, what does "running upsdrvctl interactively" look like?

@bjornfor
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Sure.

My thought exactly. 😄

Out of curiosity, what does "running upsdrvctl interactively" look like?

I'd paste the output, but I'm actually upgrading hardware tonight, so I don't have it readily available.

For example, see "Testing shutdown" from https://networkupstools.org/docs/user-manual.chunked/ar01s06.html. You'd run upsdrvctl -t shutdown and it logs what it'll do. Before this PR it would fail, after it succeeds.

@bjornfor bjornfor merged commit 1cb392f into NixOS:master Sep 11, 2024
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@bjornfor bjornfor deleted the nixos-ups-add-envvars-for-interactive-use branch September 11, 2024 19:14
@bjornfor
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It seems like this should be in the derivation for nut itself, but sure.

Yes, that might be a good idea.

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Successfully created backport PR for release-24.05:

@github-actions github-actions bot mentioned this pull request Sep 11, 2024
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@bjornfor
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Out of curiosity, what does "running upsdrvctl interactively" look like?

For example:

Before:

$ upsdrvctl -t shutdown
Network UPS Tools - UPS driver controller 2.8.2
*** Testing mode: not calling exec/kill/signal
   0.000000     [D2] 
If you're not a NUT core developer, chances are that you're told to enable debugging
to see why a driver isn't working for you. We're sorry for the confusion, but this is
the 'upsdrvctl' wrapper, not the driver you're interested in.

Below you'll find one or more lines starting with 'exec:' followed by an absolute
path to the driver binary and some command line option. This is what the driver
starts and you need to copy and paste that line and append the debug flags to that
line (less the 'exec:' prefix).

Alternately, provide an additional '-d' (lower-case) parameter to 'upsdrvctl' to
pass its current debug level to the launched driver, and '-B' keeps it backgrounded.

   0.000030     Can't open /nix/store/qbb38bmhb74qad66xarnh26wms6rfawr-nut-2.8.2/etc/ups.conf: Can't open /nix/store/qbb38bmhb74qad66xarnh26wms6rfawr-nut-2.8.2/etc/ups.conf: No such file or directory
   0.000034     [D1] Completed the job of upsdrvctl tool, cleaning up and exiting now
   0.000036     [D1] Completed the job of upsdrvctl tool, clean-up finished, exiting now
[...error exit code 1...]

After:

$ upsdrvctl -t shutdown
Network UPS Tools - UPS driver controller 2.8.2
*** Testing mode: not calling exec/kill/signal
   0.000000     [D2] 
If you're not a NUT core developer, chances are that you're told to enable debugging
to see why a driver isn't working for you. We're sorry for the confusion, but this is
the 'upsdrvctl' wrapper, not the driver you're interested in.

Below you'll find one or more lines starting with 'exec:' followed by an absolute
path to the driver binary and some command line option. This is what the driver
starts and you need to copy and paste that line and append the debug flags to that
line (less the 'exec:' prefix).

Alternately, provide an additional '-d' (lower-case) parameter to 'upsdrvctl' to
pass its current debug level to the launched driver, and '-B' keeps it backgrounded.

   0.000046     [D1] upsdrvctl commanding all drivers (1 found): (null)
   0.000049     [D1] Shutdown UPS: eaton3s
   0.000051     [D2] exec:  /nix/store/qbb38bmhb74qad66xarnh26wms6rfawr-nut-2.8.2/bin/usbhid-ups -a eaton3s -k
   0.000054     [D1] upsdrvctl: successfully finished
   0.000056     [D1] Completed the job of upsdrvctl tool, cleaning up and exiting now
   0.000059     [D1] Completed the job of upsdrvctl tool, clean-up finished, exiting now
[...successful exit code...]

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@philiptaron philiptaron philiptaron approved these changes

@Majiir Majiir Majiir approved these changes

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6.topic: nixos 8.has: module (update) 10.rebuild-darwin: 0 10.rebuild-linux: 1-10 12.approvals: 2 backport release-24.05 Backport PR automatically
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@bjornfor @philiptaron @Majiir @wegank