fix(gpg-agent): fix broken variable reference

[cpcloud]

Description

Fix a reference to a non-existent variable.

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

@rycee

[SebTM]

Can we add the test from #5141 here or afterwards?

[cpcloud]

Can we add the test from #5141 here or afterwards?

Yep, I'll add the test

[cpcloud]

Done.

[cpcloud]

I get this error when running the test:

❯ nix develop --ignore-environment '.#test-gpg-agent-default-homedir'
trace: warning: getExe: Package "pinentry-1.2.1" does not have the meta.mainProgram attribute. We'll assume that the main program has the same name for now, but this behavior is deprecated, because it leads to surprising errors when the assumption does not hold. If the package has a main program, please set `meta.mainProgram` in its definition to make this warning go away. Otherwise, if the package does not have a main program, or if you don't control its definition, use getExe' to specify the name to the program, such as lib.getExe' foo "bar".
error:
       … while calling the 'derivationStrict' builtin

         at /builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'nmt-test-gpg-agent-default-homedir'
         whose name attribute is located at /nix/store/nra828scc8qs92b9pxra5csqzffb6hpl-source/pkgs/stdenv/generic/make-derivation.nix:354:7

       … while evaluating attribute 'buildCommand' of derivation 'nmt-test-gpg-agent-default-homedir'

         at /nix/store/nra828scc8qs92b9pxra5csqzffb6hpl-source/pkgs/build-support/trivial-builders/default.nix:98:16:

           97|         enableParallelBuilding = true;
           98|         inherit buildCommand name;
             |                ^
           99|         passAsFile = [ "buildCommand" ]

       (stack trace truncated; use '--show-trace' to show the full trace)

       error: attribute 'override' missing

       at /nix/store/nra828scc8qs92b9pxra5csqzffb6hpl-source/pkgs/top-level/all-packages.nix:28399:20:

        28398|   };
        28399|   systemdMinimal = systemd.override {
             |                    ^
        28400|     pname = "systemd-minimal";

[cpcloud]

Is the warning because home-manager is tied to a nixpkgs that doesn't have meta.mainProgram set for pinentry-curses?

[rycee]

@cpcloud I've force pushed a change which uses a stub instead. Hopefully that'll work OK and avoid the unnecessary downloads.

[cpcloud]

@rycee Thanks, LGTM

[cpcloud]

Tests pass for me locally.

[rycee]

Yep, looks good. Thanks for the fix!