bump to nixpkgs-22.11

2 files changed, 25 insertions, 5 deletions

diff --git a/nix/sources.json b/nix/sources.json
index 25afdf1..370697a 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -12,15 +12,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
-        "branch": "release-21.11",
+        "branch": "release-22.11",
         "description": "Nix Packages collection",
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "19df09617db3022225761dfbf68d3ed798c96f14",
-        "sha256": "0dzk8vzyv4iqa1sfgzm7skcsq1krq9afzkgb4zrcp060446pvy66",
+        "rev": "219b2fc946a59851cdfc59efdd11129e1cee2b44",
+        "sha256": "05sgy7bdbqyyin07vzbx8fnc4mjw5780qf0r1ia8188ss2vxw4yr",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/19df09617db3022225761dfbf68d3ed798c96f14.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/219b2fc946a59851cdfc59efdd11129e1cee2b44.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }
diff --git a/nix/sources.nix b/nix/sources.nix
index 1938409..9a01c8a 100644
--- a/nix/sources.nix
+++ b/nix/sources.nix
@@ -31,8 +31,28 @@ let
           if spec ? branch then "refs/heads/${spec.branch}" else
             if spec ? tag then "refs/tags/${spec.tag}" else
               abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
+      submodules = if spec ? submodules then spec.submodules else false;
+      submoduleArg =
+        let
+          nixSupportsSubmodules = builtins.compareVersions builtins.nixVersion "2.4" >= 0;
+          emptyArgWithWarning =
+            if submodules == true
+            then
+              builtins.trace
+                (
+                  "The niv input \"${name}\" uses submodules "
+                  + "but your nix's (${builtins.nixVersion}) builtins.fetchGit "
+                  + "does not support them"
+                )
+                {}
+            else {};
+        in
+          if nixSupportsSubmodules
+          then { inherit submodules; }
+          else emptyArgWithWarning;
     in
-      builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; };
+      builtins.fetchGit
+        ({ url = spec.repo; inherit (spec) rev; inherit ref; } // submoduleArg);
 
   fetch_local = spec: spec.path;