nixos-config/modules/nixos/nix/default.nix

90 lines
2.4 KiB
Nix

{
options,
config,
pkgs,
lib,
inputs,
...
}:
with lib;
with lib.wyrdgard; let
cfg = config.wyrdgard.nix;
substituters-submodule = types.submodule ({name, ...}: {
options = with types; {
key = mkOpt (nullOr str) null "The trusted public key for this substituter.";
};
});
in {
options.wyrdgard.nix = with types; {
enable = mkBoolOpt true "Whether or not to manage nix configuration.";
package = mkOpt package pkgs.nixUnstable "Which nix package to use.";
default-substituter = {
url = mkOpt str "https://cache.nixos.org" "The url for the substituter.";
key = mkOpt str "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" "The trusted public key for the substituter.";
};
extra-substituters = mkOpt (attrsOf substituters-submodule) {} "Extra substituters to configure.";
};
config = mkIf cfg.enable {
assertions =
mapAttrsToList
(name: value: {
assertion = value.key != null;
message = "wyrdgard.nix.extra-substituters.${name}.key must be set";
})
cfg.extra-substituters;
environment.systemPackages = with pkgs; [
snowfallorg.flake
nixfmt
nix-prefetch-git
nix-du
];
nix = let
users =
["root" config.wyrdgard.user.name]
++ optional config.services.hydra.enable "hydra";
in {
package = cfg.package;
settings =
{
experimental-features = "nix-command flakes";
http-connections = 50;
warn-dirty = false;
log-lines = 50;
sandbox = "relaxed";
auto-optimise-store = true;
trusted-users = users;
allowed-users = users;
substituters =
[cfg.default-substituter.url]
++ (mapAttrsToList (name: value: name) cfg.extra-substituters);
trusted-public-keys =
[cfg.default-substituter.key]
++ (mapAttrsToList (name: value: value.key) cfg.extra-substituters);
}
// (lib.optionalAttrs config.wyrdgard.tools.direnv.enable {
keep-outputs = true;
keep-derivations = true;
});
gc = {
automatic = true;
dates = "weekly";
options = "--delete-older-than 30d";
};
# flake-utils-plus
generateRegistryFromInputs = true;
generateNixPathFromInputs = true;
linkInputs = true;
};
};
}