ci: fix dependabot config

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9952d6bc395f5841262b006fbace8dd7e143b634' (2023-02-26)
  → 'github:NixOS/nixpkgs/a1240f6b4a0bcc84fc48008b396a140d9f3638f6' (2023-03-05)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -4,5 +4,5 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
-  - commit-message:
+    commit-message:
       prefix: "ci"

.github/workflows/build.yml

@@ -10,6 +10,7 @@ jobs:
         check:
           - nixpkgs-fmt
           - deadnix
+          - nur
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository

callUnitRoot.nix

@@ -1,10 +1,15 @@
-{ pkgs, lib ? pkgs.lib, unitDir ? "unit", packageFun ? "package.nix", root ? "${./pkgs}/${unitDir}" }:
+{ pkgs
+, lib ? pkgs.lib
+, unitDir ? "unit"
+, packageFun ? "package.nix"
+, root ? "${./pkgs}/${unitDir}"
+}:
 let
   shards = lib.attrNames (builtins.readDir root);
   namesForShard = shard: lib.mapAttrs'
-    (name: _: { inherit name; value = "${root}/${shard}/${name}"; })
-    (builtins.readDir "${root}/${shard}");
+    (name: _: { inherit name; value = root + "/${shard}/${name}"; })
+    (builtins.readDir (root + "/${shard}"));
   namesToPath = lib.foldl' lib.recursiveUpdate { } (map namesForShard shards);
-  units = lib.mapAttrs (_: path: pkgs.callPackage "${path}/${packageFun}" { }) namesToPath;
+  units = lib.mapAttrs (_: path: pkgs.callPackage (path + "/${packageFun}") { }) namesToPath;
 in
 units

default.nix

@@ -7,11 +7,13 @@
 #     nix-build -A mypackage
 
 { pkgs ? import <nixpkgs> { } }:
-
-import ./pkgs/top-level/all-packages.nix { inherit pkgs; }
-// {
+let
+  legacy = import ./pkgs/top-level/all-packages.nix { inherit pkgs; };
+  units = import ./callUnitRoot.nix { inherit pkgs; root = ./pkgs/unit; };
+in
+legacy // units // {
   # The `lib`, `modules`, and `overlay` names are special
   lib = import ./lib { inherit pkgs; }; # functions
   modules = import ./modules; # NixOS modules
   overlays = import ./overlays; # nixpkgs overlays
-} // import ./callUnitRoot.nix { inherit pkgs; }
+}

flake.lock

@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1677383253,
-        "narHash": "sha256-UfpzWfSxkfXHnb4boXZNaKsAcUrZT9Hw+tao1oZxd08=",
+        "lastModified": 1677995890,
+        "narHash": "sha256-eOnCn0o3I6LP48fAi8xWFcn49V2rL7oX5jCtJTeN1LI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9952d6bc395f5841262b006fbace8dd7e143b634",
+        "rev": "a1240f6b4a0bcc84fc48008b396a140d9f3638f6",
         "type": "github"
       },
       "original": {

flake.nix

@@ -20,11 +20,11 @@
           # Unstable names are variables.
           packages =
             let
-
               legacyPackages = import ./pkgs/top-level/all-packages.nix { inherit pkgs; };
+              unitPackages = import ./callUnitRoot.nix { inherit pkgs; };
               onlyAvailable = lib.filterAttrs (_: drv: builtins.elem system (drv.meta.platforms or [ ]));
             in
-            onlyAvailable (legacyPackages // import ./callUnitRoot.nix { inherit pkgs; });
+            onlyAvailable (legacyPackages // unitPackages);
 
           checks = {
             nixpkgs-fmt = pkgs.writeShellScriptBin "nixpkgs-fmt-check" ''
@@ -33,6 +33,18 @@
             deadnix = pkgs.writeShellScriptBin "deadnix-check" ''
               ${pkgs.deadnix}/bin/deadnix --fail .
             '';
+            # Ensures that the NUR bot can evaluate and find all our packages.
+            # Normally we'd also run with `--option restrict-eval true`, but
+            # this is incompatible with flakes because reasons.
+            nur = pkgs.writeShellScriptBin "nur-check" ''
+              nix-env -f . -qa \* --meta \
+                --allowed-uris https://static.rust-lang.org \
+                --option allow-import-from-derivation true \
+                --drv-path --show-trace \
+                -I nixpkgs=$(nix-instantiate --find-file nixpkgs) \
+                -I ./ \
+                --json | ${pkgs.jq}/bin/jq -r 'values | .[].name'
+            '';
           };
 
           devShells.ci = pkgs.mkShellNoCC {

pkgs/unit/at/atlauncher/package.nix

@@ -29,15 +29,17 @@ stdenv.mkDerivation rec {
       --add-flags "--working-dir \''${XDG_DATA_HOME:-\$HOME/.local/share}/ATLauncher"
   '';
 
-  meta = with lib; {
+  meta = {
     description = "Minecraft launcher";
     longDescription = ''
       ATLauncher is a Launcher for Minecraft which integrates multiple different
       ModPacks to allow you to download and install ModPacks easily and quickly.
     '';
-    sourceProvenance = with sourceTypes; [ binaryBytecode ];
-    license = licenses.gpl3Only;
-    platforms = platforms.all;
+    sourceProvenance = [
+      (lib.sourceTypes.binaryBytecode or { shortName = "binaryBytecode"; isSource = false; })
+    ];
+    license = lib.licenses.gpl3Only;
+    platforms = lib.platforms.all;
     homepage = "https://atlauncher.com/";
   };
 }