build: introduce Nix package and NixOS service

1 files changed, 53 insertions, 0 deletions

diff --git a/service.nix b/service.nix
new file mode 100644
index 0000000..f274ba5
--- /dev/null
+++ b/service.nix
@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ... }:
+
+let
+  rust_features = pkgs.callPackage ./default.nix {};
+  cfg = config.services.rust-features;
+in
+{
+  options.services.rust-features = {
+    enable = lib.mkEnableOption "rust-features";
+
+    virtualHost = lib.mkOption {
+      type = lib.types.str;
+      description = "Name of the nginx virtualhost to set up.";
+    };
+
+    user = lib.mkOption {
+      type = lib.types.str;
+      description = "User account under which the rust-features service runs.";
+    };
+
+    nginx = lib.mkOption {
+      type = lib.types.submodule (import <nixpkgs/nixos/modules/services/web-servers/nginx/vhost-options.nix>);
+      default = {};
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.nginx = {
+      enable = true;
+
+      virtualHosts.${cfg.virtualHost} = lib.mkMerge [
+        cfg.nginx
+        {
+          locations."/" = {
+            root = "/var/lib/rust-features/out";
+          };
+        }
+      ];
+    };
+
+    systemd.services.rust-features = {
+      serviceConfig = {
+        Type = "oneshot";
+        User = cfg.user;
+        StateDirectory = "rust-features"; # creates /var/lib/rust-features
+        WorkingDirectory = "/var/lib/rust-features";
+        ExecStart = "${rust_features}/bin/rust-features";
+        LogExtraFields = "log_format=logfmt";
+      };
+      startAt = "hourly";
+    };
+  };
+}