Merge pull request #164016 from bobvanderlinden/pr-refactor-systemd-module

  ./system/boot/stage-1.nix

  ./system/boot/stage-2.nix

  ./system/boot/systemd.nix

  ./system/boot/systemd-nspawn.nix

  ./system/boot/systemd/coredump.nix

  ./system/boot/systemd/journald.nix

  ./system/boot/systemd/logind.nix

  ./system/boot/systemd/nspawn.nix

  ./system/boot/systemd/tmpfiles.nix

  ./system/boot/systemd/user.nix

  ./system/boot/timesyncd.nix

  ./system/boot/tmp.nix

  ./system/etc/etc-activation.nix

{ config, lib, pkgs, utils, ... }:

with lib;

let

  cfg = config.systemd.coredump;

  systemd = config.systemd.package;

in {

  options = {

    systemd.coredump.enable = mkOption {

      default = true;

      type = types.bool;

      description = ''

        Whether core dumps should be processed by

        <command>systemd-coredump</command>. If disabled, core dumps

        appear in the current directory of the crashing process.

      '';

    };

    systemd.coredump.extraConfig = mkOption {

      default = "";

      type = types.lines;

      example = "Storage=journal";

      description = ''

        Extra config options for systemd-coredump. See coredump.conf(5) man page

        for available options.

      '';

    };

  };

  config = {

    systemd.additionalUpstreamSystemUnits = [

      "systemd-coredump.socket"

      "systemd-coredump@.service"

    ];

    environment.etc = {

      "systemd/coredump.conf".text =

      ''

        [Coredump]

        ${cfg.extraConfig}

      '';

      # install provided sysctl snippets

      "sysctl.d/50-coredump.conf".source = "${systemd}/example/sysctl.d/50-coredump.conf";

      "sysctl.d/50-default.conf".source = "${systemd}/example/sysctl.d/50-default.conf";

    };

    users.users.systemd-coredump = {

      uid = config.ids.uids.systemd-coredump;

      group = "systemd-coredump";

    };

    users.groups.systemd-coredump = {};

    boot.kernel.sysctl."kernel.core_pattern" = mkIf (!cfg.enable) "core";

  };

}