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|
{
config,
lib,
pkgs,
...
}:
let
inherit (pkgs.stdenv.hostPlatform) isLinux;
cfg = config.base.nixSettings;
# TODO: remove this nonsense when all implementations remove repl-flake
hasReplFlake =
lib.versionOlder config.nix.package.version "2.22.0" # repl-flake was removed in nix 2.22.0
|| lib.versionAtLeast config.nix.package.version "2.90.0"; # but not in lix yet
hasAlwaysAllowSubstitutes = lib.versionAtLeast config.nix.package.version "2.19.0";
in
{
options.base.nixSettings = {
enable = lib.mkEnableOption "basic Nix settings" // {
default = config.base.enable;
defaultText = lib.literalExpression "config.base.enable";
};
lix.enable = lib.mkEnableOption "the use of Lix over Nix";
};
config = lib.mkIf cfg.enable (
lib.mkMerge [
{
nix = {
settings = {
auto-optimise-store = isLinux;
experimental-features = [
"nix-command"
"flakes"
"auto-allocate-uids"
];
trusted-substituters = [ "https://getchoo.cachix.org" ];
trusted-public-keys = [ "getchoo.cachix.org-1:ftdbAUJVNaFonM0obRGgR5+nUmdLMM+AOvDOSx0z5tE=" ];
};
gc = {
automatic = lib.mkDefault true;
options = lib.mkDefault "--delete-older-than 2d";
};
};
nixpkgs.config.allowUnfree = lib.mkDefault true;
}
(lib.mkIf cfg.lix.enable {
nix.package = pkgs.lix;
})
(lib.mkIf hasReplFlake {
nix.settings.experimental-features = [ "repl-flake" ];
})
(lib.mkIf hasAlwaysAllowSubstitutes {
nix.settings.always-allow-substitutes = true;
})
]
);
}
|
