add nix build and module

1 files changed, 95 insertions, 0 deletions

diff --git a/nix/nixos-module.nix b/nix/nixos-module.nix
new file mode 100644
index 0000000..286d3bc
--- /dev/null
+++ b/nix/nixos-module.nix
@@ -0,0 +1,95 @@
+{ lib, config, pkgs, ... }:
+
+let
+  cfg = config.services.catinator;
+  toml = pkgs.formats.toml { };
+  configFile = toml.generate "config.toml" cfg.settings;
+in
+
+with lib;
+{
+  options = {
+    services.catinator = {
+      package = mkOption {
+        defaultText = lib.literalMD "`packages.default` from the catinator flake";
+      };
+
+      extraEnvironment = mkOption {
+        type = types.attrsOf types.str;
+        description = "Extra environment variables to pass to the Garage server.";
+        default = { };
+        example = { RUST_BACKTRACE = "yes"; };
+      };
+
+      environmentFile = mkOption {
+        type = types.nullOr types.path;
+        description = "File containing environment variables to be passed to the Garage server.";
+        default = null;
+      };
+
+      logLevel = mkOption {
+        type = types.enum ([ "error" "warn" "info" "debug" "trace" ]);
+        default = "info";
+        example = "debug";
+      };
+
+      settings = mkOption {
+        type = types.submodule {
+          freeformType = toml.type;
+        };
+      };
+    };
+  };
+
+  config = {
+    services.catinator.settings = {
+      default = {
+        user = {
+          username = lib.mkDefault "catinator";
+          realname = lib.mkDefault "moaw";
+        };
+
+        server = {
+          hostname = lib.mkDefault "";
+          port = lib.mkDefault 6697;
+          tls = lib.mkDefault true;
+          sasl = lib.mkDefault true;
+        };
+
+        settings = {
+          prefix = lib.mkDefault ":";
+        };
+      };
+
+      release = {
+        user = {
+          nickname = lib.mkDefault "\\__{^-_-^}";
+        };
+
+        server = {
+         channels = lib.mkDefault "";
+        };
+      };
+    };
+
+    systemd.services.catinator = {
+      description = "Catinator IRC Bot";
+      after = [ "network.target" "network-online.target" ];
+      wants = [ "network.target" "network-online.target" ];
+      wantedBy = [ "multi-user.target" ];
+      restartTriggers = [ configFile ] ++ (lib.optional (cfg.environmentFile != null) cfg.environmentFile);
+      serviceConfig = {
+        ExecStart = "${cfg.package}/bin/catinator";
+
+        DynamicUser = lib.mkDefault true;
+        ProtectHome = true;
+        NoNewPrivileges = true;
+        EnvironmentFile = lib.optional (cfg.environmentFile != null) cfg.environmentFile;
+      };
+      environment = {
+        RUST_LOG = lib.mkDefault "catinator=${cfg.logLevel}";
+        CATINATOR_CONFIG = configFile;
+      } // cfg.extraEnvironment;
+    };
+  };
+}