mirror of
https://github.com/aviallon/nixos-lib.git
synced 2026-04-06 01:38:06 +00:00
103 lines
3.6 KiB
Nix
103 lines
3.6 KiB
Nix
{config, pkgs, lib, myLib, ...}:
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with lib;
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with myLib;
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let
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cfg = config.aviallon.nix;
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generalCfg = config.aviallon.general;
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desktopCfg = config.aviallon.desktop;
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in
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{
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options.aviallon.nix = {
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enableCustomSubstituter = mkEnableOption "custom substituter using nix-cache.lesviallon.fr";
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};
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config = {
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system.autoUpgrade.enable = mkDefault true;
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system.autoUpgrade.allowReboot = mkIf (!desktopCfg.enable) (mkDefault true);
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system.autoUpgrade.dates = "Sunday *-*-* 02:00";
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system.autoUpgrade.operation = "boot";
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system.autoUpgrade.persistent = true;
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system.autoUpgrade.rebootWindow = {
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lower = "01:00";
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upper = "05:00";
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};
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system.build.nixos-rebuild = let
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nixos-rebuild = pkgs.nixos-rebuild.override { nix = config.nix.package.out; };
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nixos-rebuild-inhibit = pkgs.writeShellScriptBin "nixos-rebuild" ''
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exec ${config.systemd.package}/bin/systemd-inhibit --what=idle:shutdown --mode=block \
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--who="NixOS rebuild" \
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--why="NixOS must finish rebuilding configuration or work would be lost." \
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-- \
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${pkgs.coreutils}/bin/nice -n 19 -- ${nixos-rebuild}/bin/nixos-rebuild "$@"
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'';
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in mkOverride 20 nixos-rebuild-inhibit;
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environment.systemPackages = [
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(hiPrio config.system.build.nixos-rebuild)
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];
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systemd.services.nixos-upgrade = {
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unitConfig = {
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ConditionCPUPressure = "user.slice:15%";
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ConditionMemoryPressure = "user.slice:50%";
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ConditionIOPressure = "user.slice:50%";
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};
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serviceConfig = {
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Nice = 19;
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CPUSchedulingPolicy = "idle";
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IOSchedulingClass = "idle";
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IOAccounting = true;
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IOWeight = 1024 / 10;
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CPUWeight = 1;
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CPUQuota = (toString (generalCfg.cores * 80)) + "%";
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Type = mkOverride 20 "simple";
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};
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};
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nix.gc.automatic = mkDefault true;
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nix.gc.dates = mkDefault "Monday,Wednesday,Friday,Sunday 03:00:00";
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nix.gc.randomizedDelaySec = "3h";
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nix.optimise.automatic = mkDefault (!config.nix.settings.auto-optimise-store);
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nix.optimise.dates = mkDefault [ "Tuesday,Thursday,Saturday 03:00:00" ];
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nix.settings.auto-optimise-store = mkDefault true;
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systemd.services.nix-daemon = {
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serviceConfig = {
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Nice = 19;
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CPUSchedulingPolicy = mkForce "batch";
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IOSchedulingClass = mkForce "idle";
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IOAccounting = true;
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IOWeight = 1024 / 10;
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};
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};
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nix.package = mkIf (strings.versionOlder pkgs.nix.version "2.7") pkgs.nix_2_7;
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nix.settings.system-features = [ "big-parallel" "kvm" "benchmark" ]
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++ optional ( ! isNull generalCfg.cpu.arch ) "gccarch-${generalCfg.cpu.arch}"
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++ optional ( generalCfg.cpu.x86.level >= 2 ) "gccarch-x86-64-v2"
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++ optional ( generalCfg.cpu.x86.level >= 3 ) "gccarch-x86-64-v3"
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++ optional ( generalCfg.cpu.x86.level >= 4 ) "gccarch-x86-64-v4"
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;
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nix.settings.builders-use-substitutes = true;
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nix.settings.substitute = true;
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nix.settings.experimental-features = []
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++ optionals ( strings.versionOlder "2.4" pkgs.nix.version ) [ "nix-command" "flakes" ];
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nix.settings.download-attempts = 5;
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nix.settings.stalled-download-timeout = 20;
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nix.settings.substituters = mkIf cfg.enableCustomSubstituter (mkBefore [ "https://nix-cache.lesviallon.fr" ]);
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nix.settings.trusted-public-keys = mkIf cfg.enableCustomSubstituter (mkBefore [ "nix-cache.lesviallon.fr-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" ]);
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nix.settings.cores = mkIf (generalCfg.cores != null) generalCfg.cores;
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nix.settings.max-jobs = mkIf (generalCfg.cores != null) (math.log2 generalCfg.cores);
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};
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}
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