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|
{
config,
lib,
pkgs,
inputs,
...
}:
let
inherit (pkgs.stdenv.hostPlatform) isLinux;
# 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"
&& lib.versionOlder config.nix.package.version "2.91.0"
); # but not until lix 2.91
hasAlwaysAllowSubstitutes = lib.versionAtLeast config.nix.package.version "2.19.0";
in
{
config = lib.mkMerge [
{
nix = {
settings = {
auto-optimise-store = lib.mkDefault isLinux;
experimental-features = [
"nix-command"
"flakes"
"auto-allocate-uids"
];
extra-trusted-substituters = [
"https://getchoo.cachix.org"
"https://nix-community.cachix.org"
];
extra-trusted-public-keys = [
"getchoo.cachix.org-1:ftdbAUJVNaFonM0obRGgR5+nUmdLMM+AOvDOSx0z5tE="
"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
];
};
gc = {
automatic = lib.mkDefault true;
options = lib.mkDefault "--delete-older-than 5d";
};
registry = lib.mapAttrs (lib.const (flake: {
to = lib.mkDefault {
type = "path";
path = flake.outPath;
};
})) inputs;
nixPath = lib.mapAttrsToList (name: lib.const "${name}=flake:${name}") inputs;
};
nixpkgs = {
config.allowUnfree = lib.mkDefault true;
};
}
(lib.mkIf hasReplFlake {
nix.settings.experimental-features = [ "repl-flake" ];
})
(lib.mkIf hasAlwaysAllowSubstitutes {
nix.settings.always-allow-substitutes = true;
})
];
}
|
