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[Nix] Move nix-specific config to dedicated file

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This commit is contained in:
Antoine Viallon 2022-04-23 22:02:35 +02:00
parent 53c1c77144
commit a481ab4da6
Signed by: aviallon
GPG key ID: 186FC35EDEB25716
2 changed files with 66 additions and 51 deletions
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64
nix.nix Normal file
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@ -0,0 +1,64 @@
{config, pkgs, lib, myLib, ...}:
with lib;
with myLib;
let
generalCfg = config.aviallon.general;
desktopCfg = config.aviallon.desktop;
nixConfigValue = value:
if value == true then "true"
else if value == false then "false"
else if isList value then toString value
else generators.mkValueStringDefault { } value;
isNullOrEmpty = v: (v == null) ||
(isList v && (length v == 0));
nixConfig = settings: (generators.toKeyValue {
mkKeyValue = generators.mkKeyValueDefault {
mkValueString = nixConfigValue;
} " = ";
} (filterAttrs (n: v: !(isNullOrEmpty v))
settings)
);
in
{
config = {
system.autoUpgrade.enable = mkDefault true;
system.autoUpgrade.allowReboot = mkIf (!desktopCfg.enable) (mkDefault true);
system.autoUpgrade.dates = "Sunday *-*-* 00:00";
nix.gc.automatic = mkDefault true;
nix.gc.dates = mkDefault "Monday,Wednesday,Friday,Sunday 03:00:00";
nix.gc.randomizedDelaySec = "3h";
nix.optimise.automatic = mkDefault true;
nix.optimise.dates = mkForce [ "Tuesday,Thursday,Saturday 03:00:00" ];
nix.autoOptimiseStore = mkDefault true;
nix.daemonIOSchedPriority = 5;
nix.daemonCPUSchedPolicy = "batch";
nix.daemonIOSchedClass = "idle";
nix.package = mkIf generalCfg.flakes.enable (
if (builtins.compareVersions pkgs.nix.version "2.4" >= 0)
then pkgs.nix
else pkgs.nix_2_4
);
nix.extraOptions = nixConfig {
builders-use-substitutes = true;
experimental-features = concatLists [
(optionals generalCfg.flakes.enable ["nix-command" "flakes"])
];
download-attempts = 5;
stalled-download-timeout = 20;
};
nix.buildCores = mkIf (generalCfg.cores != null) generalCfg.cores;
nix.maxJobs = mkIf (generalCfg.cores != null) (math.log2 generalCfg.cores);
};
}