blob: eb678a4cf53e620233d98a7d24f04e74ab1bf774 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
{
config,
lib,
pkgs,
...
}:
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"; # but not in lix yet
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"
];
};
gc = {
automatic = lib.mkDefault true;
options = lib.mkDefault "--delete-older-than 2d";
};
# See comment below
nixPath = [ "nixpkgs=${config.nixpkgs.flake.source}" ];
};
nixpkgs = {
config.allowUnfree = lib.mkDefault true;
# The `flake:` syntax in `$NIX_PATH` seems to do some weird copying on Nix 2.24
flake.setNixPath = false;
};
}
(lib.mkIf hasReplFlake {
nix.settings.experimental-features = [ "repl-flake" ];
})
(lib.mkIf hasAlwaysAllowSubstitutes {
nix.settings.always-allow-substitutes = true;
})
];
}
|
