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nixpkgs/nixos/lib/testing/pkgs.nix
Gabriella Gonzalez b8698cd8d6
macOS support for NixOS tests (#282401)
Closes #193336
Closes #261694
Related to #108984

The goal here was to get the following flake to build and run on
`aarch64-darwin`:

```nix
{ inputs.nixpkgs.url = <this branch>;

  outputs = { nixpkgs, ... }: {
    checks.aarch64-darwin.default =
      nixpkgs.legacyPackages.aarch64-darwin.nixosTest {
        name = "test";

        nodes.machine = { };

        testScript = "";
      };
  };
}
```

… and after this change it does.  There's no longer a need for the
user to set `nodes.*.nixpkgs.pkgs` or
`nodes.*.virtualisation.host.pkgs` as the correct values are inferred
from the host system.
2024-03-02 06:33:14 +01:00

16 lines
667 B
Nix

{ config, lib, hostPkgs, ... }:
{
config = {
# default pkgs for use in VMs
_module.args.pkgs =
# TODO: deprecate it everywhere; not just on darwin. Throw on darwin?
lib.warnIf hostPkgs.stdenv.hostPlatform.isDarwin
"Do not use the `pkgs` module argument in tests you want to run on darwin. It is ambiguous, and many tests are broken because of it. If you need to use a package on the VM host, use `hostPkgs`. Otherwise, use `config.node.pkgs`, or `config.nodes.<name>.nixpkgs.pkgs`."
hostPkgs;
defaults = {
# TODO: a module to set a shared pkgs, if options.nixpkgs.* is untouched by user (highestPrio) */
};
};
}