Initial refactoring for kubenix 2.0

Implemented features:

- Improved and reimplemented submodule system, independent of
kubernetes module definitions
- Pre-generated kubernetes module definitions with explicit API
versioning support

lib.nix

@@ -2,7 +2,10 @@
 
 with lib;
 
-rec {
+let
+in rec {
+  mkOptionDefault = mkOverride 1001;
+
   mkAllDefault = value: priority:
     if isAttrs value
     then mapAttrs (n: v: mkAllDefault v priority) value
@@ -12,12 +15,47 @@ rec {
 
     else mkOverride priority value;
 
-  moduleToAttrs = value:
-    if isAttrs value
-    then mapAttrs (n: v: moduleToAttrs v) (filterAttrs (n: v: !(hasPrefix "_" n) && v != null) value)
+  loadYAML = path: importJSON (pkgs.runCommand "yaml-to-json" {
+  } "${pkgs.remarshal}/bin/remarshal -i ${path} -if yaml -of json > $out");
 
-    else if isList value
-    then map (v: moduleToAttrs v) value
+  toYAML = config: builtins.readFile (pkgs.runCommand "to-yaml" {
+    buildInputs = [pkgs.remarshal];
+  } ''
+    remarshal -i ${pkgs.writeText "to-json" (builtins.toJSON config)} -if json -of yaml > $out
+  '');
 
-    else value;
+  toBase64 = value:
+    builtins.readFile
+      (pkgs.runCommand "value-to-b64" {} "echo -n '${value}' | ${pkgs.coreutils}/bin/base64 -w0 > $out");
+
+  exp = base: exp: foldr (value: acc: acc * base) 1 (range 1 exp);
+
+  octalToDecimal = value:
+    (foldr (char: acc: {
+      i = acc.i + 1;
+      value = acc.value + (toInt char) * (exp 8 acc.i);
+    }) {i = 0; value = 0;} (stringToCharacters value)).value;
+
+  importModule = {module ? null, modules ? [module], config}: let
+    specialArgs = {
+      kubenix = import ./. { inherit pkgs lib; };
+      parentConfig = config;
+    };
+
+    isModule = hasAttr "module" config;
+
+    moduleDefinition = (evalModules {
+      inherit modules specialArgs;
+      check = false;
+    }).config.module.definition;
+  in mkOption {
+    description = "Module ${moduleDefinition.name} version ${moduleDefinition.version}";
+    type = submoduleWithSpecialArgs ({name, ...}: let
+      name' = if isModule then "${config.module.name}-${name}" else name;
+    in {
+      imports = modules;
+      module.name = mkOptionDefault name';
+    }) specialArgs;
+    default = {};
+  };
 }