Move build user options to `nix` module to improve overlap with NixOS

Also add `config.ids` like in NixOS.

1 files changed, 50 insertions, 0 deletions

diff --git a/modules/misc/ids.nix b/modules/misc/ids.nix
new file mode 100644
index 0000000..07f1240
--- /dev/null
+++ b/modules/misc/ids.nix
@@ -0,0 +1,50 @@
+# Based on: https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/misc/ids.nix
+
+# This module defines the global list of uids and gids.  We keep a
+# central list to prevent id collisions.
+
+# IMPORTANT!
+# We only add static uids and gids for services where it is not feasible
+# to change uids/gids on service start, in example a service with a lot of
+# files.
+
+{ lib, ... }:
+
+let
+  inherit (lib) types;
+in
+{
+  options = {
+
+    ids.uids = lib.mkOption {
+      internal = true;
+      description = ''
+        The user IDs used in NixOS.
+      '';
+      type = types.attrsOf types.int;
+    };
+
+    ids.gids = lib.mkOption {
+      internal = true;
+      description = ''
+        The group IDs used in NixOS.
+      '';
+      type = types.attrsOf types.int;
+    };
+
+  };
+
+
+  config = {
+
+    ids.uids = {
+      nixbld = 300;
+    };
+
+    ids.gids = {
+      nixbld = 30000;
+    };
+
+  };
+
+}