lib/helpers: factor out nixvimUtils

lib/utils.nix

@@ -0,0 +1,28 @@
+{lib}:
+with lib; {
+  listToUnkeyedAttrs = list:
+    builtins.listToAttrs
+    (lib.lists.imap0 (idx: lib.nameValuePair "__unkeyed-${toString idx}") list);
+
+  emptyTable = {"__empty" = null;};
+
+  mkIfNonNull' = x: y: (mkIf (x != null) y);
+
+  mkIfNonNull = x: (mkIfNonNull' x x);
+
+  ifNonNull' = x: y:
+    if (x == null)
+    then null
+    else y;
+
+  mkRaw = r:
+    if (isString r && (r != ""))
+    then {__raw = r;}
+    else null;
+
+  wrapDo = string: ''
+    do
+      ${string}
+    end
+  '';
+}