mirror of
https://github.com/LnL7/nix-darwin.git
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dae702993d
Disabling this is not supported as `/run` gets cleared out on every reboot so it is necessary for ensuring that the `/run/current-system` symlink exists.
868 lines
34 KiB
Nix
868 lines
34 KiB
Nix
# Based off: https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/nix-daemon.nix
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# When making changes please try to keep it in sync and keep the diff NixOS module clean.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.nix;
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nixPackage = cfg.package.out;
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isNixAtLeast = versionAtLeast (getVersion nixPackage);
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makeNixBuildUser = nr: {
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name = "_nixbld${toString nr}";
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value = {
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description = "Nix build user ${toString nr}";
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/*
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For consistency with the setgid(2), setuid(2), and setgroups(2)
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calls in `libstore/build.cc', don't add any supplementary group
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here except "nixbld".
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*/
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uid = builtins.add config.ids.uids.nixbld nr;
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gid = config.ids.gids.nixbld;
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};
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};
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nixbldUsers = listToAttrs (map makeNixBuildUser (range 1 cfg.nrBuildUsers));
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nixConf =
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assert isNixAtLeast "2.2";
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let
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mkValueString = v:
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if v == null then ""
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else if isInt v then toString v
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else if isBool v then boolToString v
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else if isFloat v then strings.floatToString v
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else if isList v then toString v
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else if isDerivation v then toString v
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else if builtins.isPath v then toString v
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else if isString v then v
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else if isCoercibleToString v then toString v
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else abort "The nix conf value: ${toPretty {} v} can not be encoded";
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mkKeyValue = k: v: "${escape [ "=" ] k} = ${mkValueString v}";
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mkKeyValuePairs = attrs: concatStringsSep "\n" (mapAttrsToList mkKeyValue attrs);
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in
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pkgs.writeTextFile {
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name = "nix.conf";
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text = ''
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# WARNING: this file is generated from the nix.* options in
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# your nix-darwin configuration. Do not edit it!
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${mkKeyValuePairs cfg.settings}
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${cfg.extraOptions}
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'';
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checkPhase =
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if pkgs.stdenv.hostPlatform != pkgs.stdenv.buildPlatform then ''
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echo "Ignoring validation for cross-compilation"
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''
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else
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let
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showCommand = if isNixAtLeast "2.20pre" then "config show" else "show-config";
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in
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''
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echo "Validating generated nix.conf"
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ln -s $out ./nix.conf
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set -e
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set +o pipefail
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NIX_CONF_DIR=$PWD \
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${cfg.package}/bin/nix ${showCommand} ${optionalString (isNixAtLeast "2.3pre") "--no-net"} \
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${optionalString (isNixAtLeast "2.4pre") "--option experimental-features nix-command"} \
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|& sed -e 's/^warning:/error:/' \
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| (! grep '${if cfg.checkConfig then "^error:" else "^error: unknown setting"}')
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set -o pipefail
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'';
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};
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legacyConfMappings = {
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useSandbox = "sandbox";
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buildCores = "cores";
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maxJobs = "max-jobs";
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sandboxPaths = "extra-sandbox-paths";
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binaryCaches = "substituters";
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trustedBinaryCaches = "trusted-substituters";
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binaryCachePublicKeys = "trusted-public-keys";
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autoOptimiseStore = "auto-optimise-store";
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requireSignedBinaryCaches = "require-sigs";
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trustedUsers = "trusted-users";
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allowedUsers = "allowed-users";
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# systemFeatures = "system-features";
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};
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semanticConfType = with types;
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let
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confAtom = nullOr
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(oneOf [
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bool
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int
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float
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str
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path
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package
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]) // {
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description = "Nix config atom (null, bool, int, float, str, path or package)";
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};
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in
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attrsOf (either confAtom (listOf confAtom));
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# Not in NixOS module
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nixPathType = mkOptionType {
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name = "nix path";
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merge = loc: defs:
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let
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values = flatten (map (def:
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(map (x:
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if isAttrs x then (mapAttrsToList nameValuePair x)
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else if isString x then x
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else throw "The option value `${showOption loc}` in `${def.file}` is not a attset or string.")
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(if isList def.value then def.value else [def.value]))) defs);
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namedPaths = mapAttrsToList (n: v: "${n}=${(head v).value}")
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(zipAttrs
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(map (x: { "${x.name}" = { inherit (x) value; }; })
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(filter isAttrs values)));
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searchPaths = unique
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(filter isString values);
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in
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namedPaths ++ searchPaths;
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};
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in
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{
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imports =
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let
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altOption = alt: "No `nix-darwin` equivalent to this NixOS option, consider using `${alt}` instead.";
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consider = alt: "Consider using `${alt}` instead.";
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in
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[
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# Only ever in NixOS
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(mkRemovedOptionModule [ "nix" "enable" ] "No `nix-darwin` equivalent to this NixOS option.")
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(mkRemovedOptionModule [ "nix" "daemonCPUSchedPolicy" ] (altOption "nix.daemonProcessType"))
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(mkRemovedOptionModule [ "nix" "daemonIOSchedClass" ] (altOption "nix.daemonProcessType"))
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(mkRemovedOptionModule [ "nix" "daemonIOSchedPriority" ] (altOption "nix.daemonIOLowPriority"))
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(mkRemovedOptionModule [ "nix" "readOnlyStore" ] "No `nix-darwin` equivalent to this NixOS option.")
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# Option changes in `nix-darwin`
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(mkRemovedOptionModule [ "nix" "profile" ] "Use `nix.package` instead.")
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(mkRemovedOptionModule [ "nix" "version" ] (consider "nix.package.version"))
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(mkRenamedOptionModule [ "users" "nix" "configureBuildUsers" ] [ "nix" "configureBuildUsers" ])
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(mkRenamedOptionModule [ "users" "nix" "nrBuildUsers" ] [ "nix" "nrBuildUsers" ])
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(mkRenamedOptionModule [ "nix" "daemonIONice" ] [ "nix" "daemonIOLowPriority" ])
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(mkRemovedOptionModule [ "nix" "daemonNiceLevel" ] (consider "nix.daemonProcessType"))
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] ++ mapAttrsToList (oldConf: newConf: mkRenamedOptionModule [ "nix" oldConf ] [ "nix" "settings" newConf ]) legacyConfMappings;
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###### interface
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options = {
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nix = {
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package = mkOption {
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type = types.package;
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default = pkgs.nix;
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defaultText = literalExpression "pkgs.nix";
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description = ''
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This option specifies the Nix package instance to use throughout the system.
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'';
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};
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# Not in NixOS module
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useDaemon = mkOption {
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type = types.bool;
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default = false;
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description = ''
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If set, Nix will use the daemon to perform operations.
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Use this instead of services.nix-daemon.enable if you don't want the
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daemon service to be managed for you.
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'';
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};
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distributedBuilds = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to distribute builds to the machines listed in
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{option}`nix.buildMachines`.
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NOTE: This requires services.nix-daemon.enable for a
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multi-user install.
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'';
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};
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# Not in NixOS module
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daemonProcessType = mkOption {
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type = types.enum [ "Background" "Standard" "Adaptive" "Interactive" ];
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default = "Standard";
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description = ''
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Nix daemon process resource limits class. These limits propagate to
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build processes. `Standard` is the default process type
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and will apply light resource limits, throttling its CPU usage and I/O
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bandwidth.
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See {command}`man launchd.plist` for explanation of other
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process types.
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'';
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};
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# Not in NixOS module
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daemonIOLowPriority = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether the Nix daemon process should considered to be low priority when
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doing file system I/O.
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'';
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};
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buildMachines = mkOption {
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type = types.listOf (types.submodule {
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options = {
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hostName = mkOption {
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type = types.str;
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example = "nixbuilder.example.org";
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description = ''
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The hostname of the build machine.
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'';
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};
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protocol = mkOption {
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type = types.enum [ null "ssh" "ssh-ng" ];
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default = "ssh";
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example = "ssh-ng";
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description = ''
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The protocol used for communicating with the build machine.
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Use `ssh-ng` if your remote builder and your
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local Nix version support that improved protocol.
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Use `null` when trying to change the special localhost builder
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without a protocol which is for example used by hydra.
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'';
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};
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system = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "x86_64-linux";
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description = ''
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The system type the build machine can execute derivations on.
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Either this attribute or {var}`systems` must be
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present, where {var}`system` takes precedence if
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both are set.
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'';
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};
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systems = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = [ "x86_64-linux" "aarch64-linux" ];
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description = ''
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The system types the build machine can execute derivations on.
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Either this attribute or {var}`system` must be
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present, where {var}`system` takes precedence if
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both are set.
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'';
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};
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sshUser = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "builder";
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description = ''
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The username to log in as on the remote host. This user must be
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able to log in and run nix commands non-interactively. It must
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also be privileged to build derivations, so must be included in
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{option}`nix.settings.trusted-users`.
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'';
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};
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sshKey = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "/root/.ssh/id_buildhost_builduser";
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description = ''
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The path to the SSH private key with which to authenticate on
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the build machine. The private key must not have a passphrase.
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If null, the building user (root on NixOS machines) must have an
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appropriate ssh configuration to log in non-interactively.
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Note that for security reasons, this path must point to a file
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in the local filesystem, *not* to the nix store.
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'';
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};
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maxJobs = mkOption {
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type = types.int;
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default = 1;
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description = ''
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The number of concurrent jobs the build machine supports. The
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build machine will enforce its own limits, but this allows hydra
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to schedule better since there is no work-stealing between build
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machines.
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'';
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};
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speedFactor = mkOption {
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type = types.int;
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default = 1;
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description = ''
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The relative speed of this builder. This is an arbitrary integer
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that indicates the speed of this builder, relative to other
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builders. Higher is faster.
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'';
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};
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mandatoryFeatures = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = [ "big-parallel" ];
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description = ''
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A list of features mandatory for this builder. The builder will
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be ignored for derivations that don't require all features in
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this list. All mandatory features are automatically included in
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{var}`supportedFeatures`.
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'';
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};
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supportedFeatures = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = [ "kvm" "big-parallel" ];
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description = ''
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A list of features supported by this builder. The builder will
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be ignored for derivations that require features not in this
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list.
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'';
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};
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publicHostKey = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = ''
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The (base64-encoded) public host key of this builder. The field
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is calculated via {command}`base64 -w0 /etc/ssh/ssh_host_type_key.pub`.
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If null, SSH will use its regular known-hosts file when connecting.
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'';
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};
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};
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});
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default = [ ];
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description = ''
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This option lists the machines to be used if distributed builds are
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enabled (see {option}`nix.distributedBuilds`).
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Nix will perform derivations on those machines via SSH by copying the
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inputs to the Nix store on the remote machine, starting the build,
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then copying the output back to the local Nix store.
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'';
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};
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# Environment variables for running Nix.
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envVars = mkOption {
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type = types.attrs;
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internal = true;
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default = { };
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description = "Environment variables used by Nix.";
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};
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# Not in NixOS module
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configureBuildUsers = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable configuration for nixbld group and users.
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'';
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};
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nrBuildUsers = mkOption {
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type = types.int;
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description = ''
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Number of `nixbld` user accounts created to
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perform secure concurrent builds. If you receive an error
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message saying that “all build users are currently in use”,
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you should increase this value.
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'';
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};
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channel = {
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enable = mkOption {
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description = ''
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Whether the `nix-channel` command and state files are made available on the machine.
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The following files are initialized when enabled:
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- `/nix/var/nix/profiles/per-user/root/channels`
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- `$HOME/.nix-defexpr/channels` (on login)
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Disabling this option will not remove the state files from the system.
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'';
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type = types.bool;
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default = true;
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};
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};
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# Definition differs substantially from NixOS module
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nixPath = mkOption {
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type = nixPathType;
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default = lib.optionals cfg.channel.enable [
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# Include default path <darwin-config>.
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{ darwin-config = "${config.environment.darwinConfig}"; }
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"/nix/var/nix/profiles/per-user/root/channels"
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];
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defaultText = lib.literalExpression ''
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lib.optionals cfg.channel.enable [
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# Include default path <darwin-config>.
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{ darwin-config = "''${config.environment.darwinConfig}"; }
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"/nix/var/nix/profiles/per-user/root/channels"
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]
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'';
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description = ''
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The default Nix expression search path, used by the Nix
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evaluator to look up paths enclosed in angle brackets
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(e.g. `<nixpkgs>`).
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Named entries can be specified using an attribute set, if an
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entry is configured multiple times the value with the lowest
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ordering will be used.
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'';
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};
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checkConfig = mkOption {
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type = types.bool;
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default = true;
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description = ''
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If enabled (the default), checks for data type mismatches and that Nix
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can parse the generated nix.conf.
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'';
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};
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registry = mkOption {
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type = types.attrsOf (types.submodule (
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let
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referenceAttrs = with types; attrsOf (oneOf [
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str
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int
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bool
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package
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]);
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in
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{ config, name, ... }:
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{
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options = {
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from = mkOption {
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type = referenceAttrs;
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example = { type = "indirect"; id = "nixpkgs"; };
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description = "The flake reference to be rewritten.";
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};
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to = mkOption {
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type = referenceAttrs;
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example = { type = "github"; owner = "my-org"; repo = "my-nixpkgs"; };
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description = "The flake reference {option}`from` is rewritten to.";
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};
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flake = mkOption {
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type = types.nullOr types.attrs;
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default = null;
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example = literalExpression "nixpkgs";
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description = ''
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The flake input {option}`from` is rewritten to.
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'';
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};
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exact = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether the {option}`from` reference needs to match exactly. If set,
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a {option}`from` reference like `nixpkgs` does not
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match with a reference like `nixpkgs/nixos-20.03`.
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'';
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};
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};
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config = {
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from = mkDefault { type = "indirect"; id = name; };
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to = mkIf (config.flake != null) (mkDefault (
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{
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type = "path";
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path = config.flake.outPath;
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} // filterAttrs
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(n: _: n == "lastModified" || n == "rev" || n == "revCount" || n == "narHash")
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config.flake
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));
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};
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}
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));
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default = { };
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description = ''
|
|
A system-wide flake registry.
|
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'';
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};
|
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|
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extraOptions = mkOption {
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type = types.lines;
|
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default = "";
|
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example = ''
|
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keep-outputs = true
|
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keep-derivations = true
|
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'';
|
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description = "Additional text appended to {file}`nix.conf`.";
|
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};
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|
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settings = mkOption {
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type = types.submodule {
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freeformType = semanticConfType;
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|
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options = {
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max-jobs = mkOption {
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type = types.either types.int (types.enum [ "auto" ]);
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default = "auto";
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example = 64;
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description = ''
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This option defines the maximum number of jobs that Nix will try to
|
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build in parallel. The default is auto, which means it will use all
|
|
available logical cores. It is recommend to set it to the total
|
|
number of logical cores in your system (e.g., 16 for two CPUs with 4
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cores each and hyper-threading).
|
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'';
|
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};
|
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|
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auto-optimise-store = mkOption {
|
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type = types.bool;
|
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default = false;
|
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example = true;
|
|
description = ''
|
|
If set to true, Nix automatically detects files in the store that have
|
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identical contents, and replaces them with hard links to a single copy.
|
|
This saves disk space. If set to false (the default), you can enable
|
|
{option}`nix.optimise.automatic` to run {command}`nix-store --optimise`
|
|
periodically to get rid of duplicate files. You can also run
|
|
{command}`nix-store --optimise` manually.
|
|
'';
|
|
};
|
|
|
|
cores = mkOption {
|
|
type = types.int;
|
|
default = 0;
|
|
example = 64;
|
|
description = ''
|
|
This option defines the maximum number of concurrent tasks during
|
|
one build. It affects, e.g., -j option for make.
|
|
The special value 0 means that the builder should use all
|
|
available CPU cores in the system. Some builds may become
|
|
non-deterministic with this option; use with care! Packages will
|
|
only be affected if enableParallelBuilding is set for them.
|
|
'';
|
|
};
|
|
|
|
sandbox = mkOption {
|
|
type = types.either types.bool (types.enum [ "relaxed" ]);
|
|
default = false;
|
|
description = ''
|
|
If set, Nix will perform builds in a sandboxed environment that it
|
|
will set up automatically for each build. This prevents impurities
|
|
in builds by disallowing access to dependencies outside of the Nix
|
|
store by using network and mount namespaces in a chroot environment. It
|
|
doesn't affect derivation hashes, so changing this option will not
|
|
trigger a rebuild of packages.
|
|
'';
|
|
};
|
|
|
|
extra-sandbox-paths = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ ];
|
|
example = [ "/dev" "/proc" ];
|
|
description = ''
|
|
Directories from the host filesystem to be included
|
|
in the sandbox.
|
|
'';
|
|
};
|
|
|
|
substituters = mkOption {
|
|
type = types.listOf types.str;
|
|
description = ''
|
|
List of binary cache URLs used to obtain pre-built binaries
|
|
of Nix packages.
|
|
|
|
By default https://cache.nixos.org/ is added.
|
|
'';
|
|
};
|
|
|
|
trusted-substituters = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ ];
|
|
example = [ "https://hydra.nixos.org/" ];
|
|
description = ''
|
|
List of binary cache URLs that non-root users can use (in
|
|
addition to those specified using
|
|
{option}`nix.settings.substituters`) by passing
|
|
`--option binary-caches` to Nix commands.
|
|
'';
|
|
};
|
|
|
|
require-sigs = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
If enabled (the default), Nix will only download binaries from binary caches if
|
|
they are cryptographically signed with any of the keys listed in
|
|
{option}`nix.settings.trusted-public-keys`. If disabled, signatures are neither
|
|
required nor checked, so it's strongly recommended that you use only
|
|
trustworthy caches and https to prevent man-in-the-middle attacks.
|
|
'';
|
|
};
|
|
|
|
trusted-public-keys = mkOption {
|
|
type = types.listOf types.str;
|
|
example = [ "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=" ];
|
|
description = ''
|
|
List of public keys used to sign binary caches. If
|
|
{option}`nix.settings.trusted-public-keys` is enabled,
|
|
then Nix will use a binary from a binary cache if and only
|
|
if it is signed by *any* of the keys
|
|
listed here. By default, only the key for
|
|
`cache.nixos.org` is included.
|
|
'';
|
|
};
|
|
|
|
trusted-users = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ "root" ];
|
|
example = [ "root" "alice" "@admin" ];
|
|
description = ''
|
|
A list of names of users that have additional rights when
|
|
connecting to the Nix daemon, such as the ability to specify
|
|
additional binary caches, or to import unsigned NARs. You
|
|
can also specify groups by prefixing them with
|
|
`@`; for instance,
|
|
`@admin` means all users in the wheel
|
|
group.
|
|
'';
|
|
};
|
|
|
|
# Not implemented yet
|
|
# system-features = mkOption {
|
|
# type = types.listOf types.str;
|
|
# example = [ "kvm" "big-parallel" "gccarch-skylake" ];
|
|
# description = ''
|
|
# The set of features supported by the machine. Derivations
|
|
# can express dependencies on system features through the
|
|
# <literal>requiredSystemFeatures</literal> attribute.
|
|
|
|
# By default, pseudo-features <literal>nixos-test</literal>, <literal>benchmark</literal>,
|
|
# and <literal>big-parallel</literal> used in Nixpkgs are set, <literal>kvm</literal>
|
|
# is also included in it is avaliable.
|
|
# '';
|
|
# };
|
|
|
|
allowed-users = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ "*" ];
|
|
example = [ "@admin" "@builders" "alice" "bob" ];
|
|
description = ''
|
|
A list of names of users (separated by whitespace) that are
|
|
allowed to connect to the Nix daemon. As with
|
|
{option}`nix.settings.trusted-users`, you can specify groups by
|
|
prefixing them with `@`. Also, you can
|
|
allow all users by specifying `*`. The
|
|
default is `*`. Note that trusted users are
|
|
always allowed to connect.
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
default = { };
|
|
description = ''
|
|
Configuration for Nix, see
|
|
<https://nixos.org/manual/nix/stable/#sec-conf-file>
|
|
for avalaible options.
|
|
The value declared here will be translated directly to the key-value pairs Nix expects.
|
|
|
|
Nix configurations defined under {option}`nix.*` will be translated and applied to this
|
|
option. In addition, configuration specified in {option}`nix.extraOptions` which will be appended
|
|
verbatim to the resulting config file.
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = {
|
|
environment.systemPackages =
|
|
[
|
|
nixPackage
|
|
pkgs.nix-info
|
|
]
|
|
++ optional (config.programs.bash.completion.enable) pkgs.nix-bash-completions;
|
|
|
|
environment.etc."nix/nix.conf".source = nixConf;
|
|
|
|
# Not in NixOS module
|
|
environment.etc."nix/nix.conf".knownSha256Hashes = [
|
|
"7c2d80499b39256b03ee9abd3d6258343718306aca8d472c26ac32c9b0949093" # official Nix installer
|
|
"19299897fa312d9d32b3c968c2872dd143085aa727140cec51f57c59083e93b9"
|
|
"c4ecc3d541c163c8fcc954ccae6b8cab28c973dc283fea5995c69aaabcdf785f"
|
|
"ef78f401a9b5a42fd15e967c50da384f99ec62f9dbc66ea38f1390b46b63e1ff" # official Nix installer 2.0
|
|
"c06b0c6080dd1d62e61a30cfad100c0cfed2d3bcd378e296632dc3b28b31dc69" # official Nix installer as of 2.0.1
|
|
"ff08c12813680da98c4240328f828647b67a65ba7aa89c022bd8072cba862cf1" # official Nix installer as of 2.4
|
|
"f3e03d851c240c1aa7daccd144ee929f0f5971982424c868c434eb6030e961d4" # DeterminateSystems Nix installer 0.10.0
|
|
"c6080216f2a170611e339c3f46e4e1d61aaf0d8b417ad93ade8d647da1382c11" # DeterminateSystems Nix installer 0.14.0
|
|
"97f4135d262ca22d65c9554aad795c10a4491fa61b67d9c2430f4d82bbfec9a2" # DeterminateSystems Nix installer 0.15.1
|
|
"5d23e6d7015756c6f300f8cd558ec4d9234ca61deefd4f2478e91a49760b0747" # DeterminateSystems Nix installer 0.16.0
|
|
"e4974acb79c56148cb8e92137fa4f2de9b7356e897b332fc4e6769e8c0b83e18" # DeterminateSystems Nix installer 0.20.0
|
|
"966d22ef5bb9b56d481e8e0d5f7ca2deaf4d24c0f0fc969b2eeaa7ae0aa42907" # DeterminateSystems Nix installer 0.22.0
|
|
"24797ac05542ff8b52910efc77870faa5f9e3275097227ea4e50c430a5f72916" # lix-installer 0.17.1 with flakes
|
|
"b027b5cad320b5b8123d9d0db9f815c3f3921596c26dc3c471457098e4d3cc40" # lix-installer 0.17.1 without flakes
|
|
];
|
|
|
|
environment.etc."nix/registry.json".text = builtins.toJSON {
|
|
version = 2;
|
|
flakes = mapAttrsToList (n: v: { inherit (v) from to exact; }) cfg.registry;
|
|
};
|
|
|
|
# List of machines for distributed Nix builds in the format
|
|
# expected by build-remote.pl.
|
|
environment.etc."nix/machines" = mkIf (cfg.buildMachines != [ ]) {
|
|
text =
|
|
concatMapStrings
|
|
(machine:
|
|
(concatStringsSep " " ([
|
|
"${optionalString (machine.protocol != null) "${machine.protocol}://"}${optionalString (machine.sshUser != null) "${machine.sshUser}@"}${machine.hostName}"
|
|
(if machine.system != null then machine.system else if machine.systems != [ ] then concatStringsSep "," machine.systems else "-")
|
|
(if machine.sshKey != null then machine.sshKey else "-")
|
|
(toString machine.maxJobs)
|
|
(toString machine.speedFactor)
|
|
(let res = (machine.supportedFeatures ++ machine.mandatoryFeatures);
|
|
in if (res == []) then "-" else (concatStringsSep "," res))
|
|
(let res = machine.mandatoryFeatures;
|
|
in if (res == []) then "-" else (concatStringsSep "," machine.mandatoryFeatures))
|
|
]
|
|
++ optional (isNixAtLeast "2.4pre") (if machine.publicHostKey != null then machine.publicHostKey else "-")))
|
|
+ "\n"
|
|
)
|
|
cfg.buildMachines;
|
|
};
|
|
|
|
assertions =
|
|
let
|
|
badMachine = m: m.system == null && m.systems == [ ];
|
|
|
|
# Not in NixOS module
|
|
createdGroups = mapAttrsToList (n: v: v.name) config.users.groups;
|
|
createdUsers = mapAttrsToList (n: v: v.name) config.users.users;
|
|
in
|
|
[
|
|
{
|
|
assertion = !(any badMachine cfg.buildMachines);
|
|
message = ''
|
|
At least one system type (via <varname>system</varname> or
|
|
<varname>systems</varname>) must be set for every build machine.
|
|
Invalid machine specifications:
|
|
'' + " " +
|
|
(concatStringsSep "\n "
|
|
(map (m: m.hostName)
|
|
(filter (badMachine) cfg.buildMachines)));
|
|
}
|
|
|
|
# Not in NixOS module
|
|
{ assertion = elem "nixbld" config.users.knownGroups -> elem "nixbld" createdGroups; message = "refusing to delete group nixbld in users.knownGroups, this would break nix"; }
|
|
{ assertion = elem "_nixbld1" config.users.knownGroups -> elem "_nixbld1" createdUsers; message = "refusing to delete user _nixbld1 in users.knownUsers, this would break nix"; }
|
|
{ assertion = config.users.groups ? "nixbld" -> config.users.groups.nixbld.members != []; message = "refusing to remove all members from nixbld group, this would break nix"; }
|
|
|
|
{
|
|
# Should be fixed in Lix by https://gerrit.lix.systems/c/lix/+/2100
|
|
# As `isNixAtLeast "2.92.0" "2.92.0-devpre20241107" == false`, we need to explicitly check if the user is running Lix 2.92.0
|
|
assertion = cfg.settings.auto-optimise-store -> (cfg.package.pname == "lix" && (isNixAtLeast "2.92.0-devpre20241107" || cfg.package.version == "2.92.0"));
|
|
message = "`nix.settings.auto-optimise-store` is known to corrupt the Nix Store, please use `nix.optimise.automatic` instead.";
|
|
}
|
|
];
|
|
|
|
# Not in NixOS module
|
|
warnings = [
|
|
(mkIf (!cfg.distributedBuilds && cfg.buildMachines != []) "nix.distributedBuilds is not enabled, build machines won't be configured.")
|
|
];
|
|
|
|
# Not in NixOS module
|
|
nix.nixPath = mkIf (config.system.stateVersion < 2) (mkDefault [
|
|
"darwin=$HOME/.nix-defexpr/darwin"
|
|
"darwin-config=$HOME/.nixpkgs/darwin-configuration.nix"
|
|
"/nix/var/nix/profiles/per-user/root/channels"
|
|
]);
|
|
|
|
# Set up the environment variables for running Nix.
|
|
environment.variables = cfg.envVars // { NIX_PATH = cfg.nixPath; };
|
|
|
|
environment.extraInit = mkMerge [
|
|
(mkIf cfg.channel.enable ''
|
|
if [ -e "$HOME/.nix-defexpr/channels" ]; then
|
|
export NIX_PATH="$HOME/.nix-defexpr/channels''${NIX_PATH:+:$NIX_PATH}"
|
|
fi
|
|
'')
|
|
# Not in NixOS module
|
|
''
|
|
# Set up secure multi-user builds: non-root users build through the
|
|
# Nix daemon.
|
|
if [ ! -w /nix/var/nix/db ]; then
|
|
export NIX_REMOTE=daemon
|
|
fi
|
|
''
|
|
];
|
|
|
|
environment.extraSetup = mkIf (!cfg.channel.enable) ''
|
|
rm --force $out/bin/nix-channel
|
|
'';
|
|
|
|
nix.nrBuildUsers = mkDefault (max 32 (if cfg.settings.max-jobs == "auto" then 0 else cfg.settings.max-jobs));
|
|
|
|
users.users = mkIf cfg.configureBuildUsers nixbldUsers;
|
|
|
|
# Not in NixOS module
|
|
users.groups.nixbld = mkIf cfg.configureBuildUsers {
|
|
description = "Nix build group for nix-daemon";
|
|
gid = config.ids.gids.nixbld;
|
|
members = attrNames nixbldUsers;
|
|
};
|
|
users.knownUsers =
|
|
let nixbldUserNames = attrNames nixbldUsers;
|
|
in
|
|
mkIf cfg.configureBuildUsers (mkMerge [
|
|
nixbldUserNames
|
|
(map (removePrefix "_") nixbldUserNames) # delete old style nixbld users
|
|
]);
|
|
users.knownGroups = mkIf cfg.configureBuildUsers [ "nixbld" ];
|
|
|
|
# Unrelated to use in NixOS module
|
|
system.activationScripts.nix-daemon.text = mkIf cfg.useDaemon ''
|
|
if ! diff /etc/nix/nix.conf /run/current-system/etc/nix/nix.conf &> /dev/null || ! diff /etc/nix/machines /run/current-system/etc/nix/machines &> /dev/null; then
|
|
echo "reloading nix-daemon..." >&2
|
|
launchctl kill HUP system/org.nixos.nix-daemon
|
|
fi
|
|
while ! nix-store --store daemon -q --hash ${pkgs.stdenv.shell} &>/dev/null; do
|
|
echo "waiting for nix-daemon" >&2
|
|
launchctl kickstart system/org.nixos.nix-daemon
|
|
done
|
|
'';
|
|
|
|
# Legacy configuration conversion.
|
|
nix.settings = mkMerge [
|
|
{
|
|
trusted-public-keys = [ "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=" ];
|
|
substituters = mkAfter [ "https://cache.nixos.org/" ];
|
|
|
|
# Not implemented yet
|
|
# system-features = mkDefault (
|
|
# [ "nixos-test" "benchmark" "big-parallel" "kvm" ] ++
|
|
# optionals (pkgs.hostPlatform ? gcc.arch) (
|
|
# # a builder can run code for `gcc.arch` and inferior architectures
|
|
# [ "gccarch-${pkgs.hostPlatform.gcc.arch}" ] ++
|
|
# map (x: "gccarch-${x}") systems.architectures.inferiors.${pkgs.hostPlatform.gcc.arch}
|
|
# )
|
|
# );
|
|
}
|
|
|
|
(mkIf (!cfg.distributedBuilds) { builders = null; })
|
|
|
|
(mkIf (isNixAtLeast "2.3pre") { sandbox-fallback = false; })
|
|
|
|
# Not in NixOS module
|
|
(mkIf cfg.useDaemon { build-users-group = "nixbld"; })
|
|
];
|
|
|
|
};
|
|
|
|
}
|