Nix complains about $HOME being retained by sudo

[Sciencentistguy]

Ever since this (https://github.com/NixOS/nix/pull/6676) change in nix, it checks that $HOME is owned by the current user.

When using darwin-rebuild, this check is tripped, causing a warning to be printed:

warning: $HOME ('/Users/jamie') is not owned by you, falling back to the one defined in the 'passwd' file.

As far as I can tell, this occurs during this invokation of nix-env: https://github.com/LnL7/nix-darwin/blob/54a24f042f93c79f5679f133faddedec61955cf2/pkgs/nix-tools/darwin-rebuild.sh#L181

This happens because nix-env is executing as UID 0, however $HOME still points to /Users/jamie (sudo on macos does not clear $HOME)

This does not appear to be actually causing any issues, but thought I'd report it here anyway, in case this is fixable from this end.

[joscha]

Ah, thanks for tracking this down. I was searching high and low where this was suddenly coming from! I've not noticed any bad side effects either.

[FlakM]

I think I've got into some troubles due to that change. My account is not present in /etc/passwd file (I think is manages like NSS on linux) I get this warning and all applications seem to think that my home directory is located in /var/empty is this possible?

[joscha]

all applications seem to think that my home directory is located in /var/empty is this possible?

ah, I noticed that too. I fixed it via:

users.users."joscha".home = "/Users/joscha";

but that's very possibly a side-effect of that warning.

[supermarin]

Setting users.users.USER.home doesn't fix this for me. Just noticed this warning today after bumping nixpkgs. Nix-darwin with home-manager as a module.

[kkharji]

I still face this issue,

warning: $HOME ('/Users/kkharji') is not owned by you, falling back to the one defined in the 'passwd' file ('/var/root')

Using nix flake, info

├───nix-darwin: github:lnl7/nix-darwin/6349b99bc2b96ded34d068a88c7c5ced406b7f7f
│   └───nixpkgs follows input 'nixpkgs'