nix-darwin

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I have this line in my configuration file:

  environment.darwinConfig = "$HOME/.nix-environment/darwin.nix";

This is not respected in my shell:

➜ echo $NIX_PATH
darwin-config=/Users/jamie/.nixpkgs/darwin-configuration.nix:/nix/var/nix/profiles/per-user/root/channels:/Users/jamie/.nix-defexpr/channels

If I create a shell with sudo, it is then respected

➜ sudo -u jamie -i
➜ echo $NIX_PATH
darwin-config=/Users/jamie/.nix-environment/darwin.nix:/nix/var/nix/profiles/per-user/root/channels:/Users/jamie/.nix-defexpr/channels

System info:

➜ nix-shell -p nix-info --run "nix-info -m"
 - system: `"aarch64-darwin"`
 - host os: `Darwin 21.2.0, macOS 12.1`
 - multi-user?: `yes`
 - sandbox: `no`
 - version: `nix-env (Nix) 2.5.1`
 - channels(jamie): `"darwin, home-manager"`
 - channels(root): `"darwin, home-manager, nixpkgs-22.05pre346058.bc59ba15b64"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixpkgs`

My dotfiles repository, which includes these files, can be found here: https://github.com/Sciencentistguy/dotfiles

@Sciencentistguy, are you still experiencing this issue?

I moved to flakes to avoid this issue, so no.

Huh, well, I'm not sure what was going on here. With let latest version of nix-darwin, when I set environment.darwinConfig to something, then use nix repl or nix eval to query my final config, nix.nixPath and environment.variables.NIX_PATH are both set correctly. (I'm using flakes, but I don't think that should matter, for testing this.)

I just made a fresh install of nix, nix-darwin and home manager. I had this in my config:

{
  imports = [ <home-manager/nix-darwin> ];

  environment = {
    darwinConfig = "$HOME/.config/nixpkgs/darwin/configuration.nix";
  };
}

Also, the fish shell is enabled through the home manager module.

Ran this:

darwin-rebuild switch -I darwin-config=$HOME/.config/nixpkgs/darwin/configuration.nix

And when I subsequently run darwin-rebuild switch, I'm getting:

building the system configuration...
error:
       … while evaluating the attribute 'config.system.build.toplevel'

         at /nix/store/07cccv29wds2jfs9xibj5ng4h2694apz-nixpkgs/nixpkgs/lib/modules.nix:326:9:

          325|         options = checked options;
          326|         config = checked (removeAttrs config [ "_module" ]);
             |         ^
          327|         _module = checked (config._module);

       … while calling the 'seq' builtin

         at /nix/store/07cccv29wds2jfs9xibj5ng4h2694apz-nixpkgs/nixpkgs/lib/modules.nix:326:18:

          325|         options = checked options;
          326|         config = checked (removeAttrs config [ "_module" ]);
             |                  ^
          327|         _module = checked (config._module);

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

       error: file 'darwin-config' was not found in the Nix search path (add it using $NIX_PATH or -I)

       at «none»:0: (source not available)

$NIX_PATH appears to be empty.