mx-puppet-discord: remove (#428183)

- `victoriametrics` no longer contains VictoriaLogs components. These have been separated into the new package `victorialogs`.

- `mx-puppet-discord` was removed from nixpkgs along with its NixOS module as it was unmaintained and was the only user of sha1 hashes in tree.

- `gnome-keyring` no longer ships with an SSH agent anymore because it has been deprecated upstream. You should use `gcr_4` instead, which provides the same features. More information on why this was done can be found on [the relevant GCR upstream PR](https://gitlab.gnome.org/GNOME/gcr/-/merge_requests/67).

- `stdenv.mkDerivation` and other derivation builders that use it no longer allow the value of `env` to be anything but an attribute set, for the purpose of setting environment variables that are available to the [builder](https://nix.dev/manual/nix/latest/store/derivation/#builder) process. An environment variable called `env` can still be provided by means of `mkDerivation { env.env = ...; }`, though we recommend to use a more specific name than "env".

- [influxdb-exporter](https://github.com/prometheus/influxdb_exporter) a Prometheus exporter that exports metrics received on an InfluxDB compatible endpoint is now available as [services.prometheus.exporters.influxdb](#opt-services.prometheus.exporters.influxdb.enable).

- [mx-puppet-discord](https://github.com/matrix-discord/mx-puppet-discord), a discord puppeting bridge for matrix. Available as [services.mx-puppet-discord](#opt-services.mx-puppet-discord.enable).

- [mx-puppet-discord](https://github.com/matrix-discord/mx-puppet-discord), a discord puppeting bridge for matrix. Available as `services.mx-puppet-discord`.

- [MeshCentral](https://www.meshcommander.com/meshcentral2/overview), a remote administration service ("TeamViewer but self-hosted and with more features") is now available with a package and a module: [services.meshcentral.enable](#opt-services.meshcentral.enable)

  ./services/matrix/mautrix-telegram.nix

  ./services/matrix/mautrix-whatsapp.nix

  ./services/matrix/mjolnir.nix

  ./services/matrix/mx-puppet-discord.nix

  ./services/matrix/pantalaimon.nix

  ./services/matrix/synapse-auto-compressor.nix

  ./services/matrix/synapse.nix

    (mkRemovedOptionModule [ "services" "matrix-sliding-sync" ]

      "The matrix-sliding-sync package has been removed, since matrix-synapse incorporated its functionality. Remove `services.sliding-sync` from your NixOS Configuration, and the `.well-known` record for `org.matrix.msc3575.proxy` from your webserver"

    )

    (mkRemovedOptionModule [

      "services"

      "mx-puppet-discord"

    ] "The corresponding package was removed from nixpkgs.")

    (mkRemovedOptionModule [ "services" "meguca" ] "Use meguca has been removed from nixpkgs")

    (mkRemovedOptionModule [ "services" "mesos" ] "The corresponding package was removed from nixpkgs.")

    (mkRemovedOptionModule [

{

  config,

  pkgs,

  lib,

  ...

}:

let

  dataDir = "/var/lib/mx-puppet-discord";

  registrationFile = "${dataDir}/discord-registration.yaml";

  cfg = config.services.mx-puppet-discord;

  settingsFormat = pkgs.formats.json { };

  settingsFile = settingsFormat.generate "mx-puppet-discord-config.json" cfg.settings;

in

{

  options = {

    services.mx-puppet-discord = {

      enable = lib.mkEnableOption ''

        mx-puppet-discord is a discord puppeting bridge for matrix.

        It handles bridging private and group DMs, as well as Guilds (servers)

      '';

      settings = lib.mkOption rec {

        apply = lib.recursiveUpdate default;

        inherit (settingsFormat) type;

        default = {

          bridge.port = 8434;

          presence = {

            enabled = true;

            interval = 500;

          };

          provisioning.whitelist = [ ];

          relay.whitelist = [ ];

          # variables are preceded by a colon.

          namePatterns = {

            user = ":name";

            userOverride = ":displayname";

            room = ":name";

            group = ":name";

          };

          #defaults to sqlite but can be configured to use postgresql with

          #connstring

          database.filename = "${dataDir}/database.db";

          logging = {

            console = "info";

            lineDateFormat = "MMM-D HH:mm:ss.SSS";

          };

        };

        example = lib.literalExpression ''

          {

            bridge = {

              bindAddress = "localhost";

              domain = "example.com";

              homeserverUrl = "https://example.com";

            };

            provisioning.whitelist = [ "@admin:example.com" ];

            relay.whitelist = [ "@.*:example.com" ];

          }

        '';

        description = ''

          {file}`config.yaml` configuration as a Nix attribute set.

          Configuration options should match those described in

          [

          sample.config.yaml](https://github.com/matrix-discord/mx-puppet-discord/blob/master/sample.config.yaml).

        '';

      };

      serviceDependencies = lib.mkOption {

        type = with lib.types; listOf str;

        default = lib.optional config.services.matrix-synapse.enable config.services.matrix-synapse.serviceUnit;

        defaultText = lib.literalExpression ''

          lib.optional config.services.matrix-synapse.enable config.services.matrix-synapse.serviceUnit

        '';

        description = ''

          List of Systemd services to require and wait for when starting the application service.

        '';

      };

    };

  };

  config = lib.mkIf cfg.enable {

    systemd.services.mx-puppet-discord = {

      description = "Matrix to Discord puppeting bridge";

      wantedBy = [ "multi-user.target" ];

      wants = [ "network-online.target" ] ++ cfg.serviceDependencies;

      after = [ "network-online.target" ] ++ cfg.serviceDependencies;

      preStart = ''

        # generate the appservice's registration file if absent

        if [ ! -f '${registrationFile}' ]; then

          ${pkgs.mx-puppet-discord}/bin/mx-puppet-discord -r -c ${settingsFile} \

          -f ${registrationFile}

        fi

      '';

      serviceConfig = {

        Type = "simple";

        Restart = "always";

        ProtectSystem = "strict";

        ProtectHome = true;

        ProtectKernelTunables = true;

        ProtectKernelModules = true;

        ProtectControlGroups = true;

        DynamicUser = true;

        PrivateTmp = true;

        WorkingDirectory = pkgs.mx-puppet-discord;

        StateDirectory = baseNameOf dataDir;

        UMask = "0027";

        ExecStart = ''

          ${pkgs.mx-puppet-discord}/bin/mx-puppet-discord \

            -c ${settingsFile} \

            -f ${registrationFile}

        '';

      };

    };

  };

  meta.maintainers = with lib.maintainers; [ govanify ];

}