fix: correct broken submodules

foundation/flake.lock

@@ -3,10 +3,10 @@
     "lib": {
       "locked": {
         "dir": "lib",
-        "dirtyRev": "f24f0876a9103c7adb8120ce9709fb90c73f2a7c-dirty",
-        "dirtyShortRev": "f24f087-dirty",
-        "lastModified": 1718105966,
-        "narHash": "sha256-L68G29+bPmwZSERg3VYXdfont/w+mssmWnrs6tyBijk=",
+        "dirtyRev": "9c29945531c58ad81f05cd1f4958c8894a733216-dirty",
+        "dirtyShortRev": "9c29945-dirty",
+        "lastModified": 1718255029,
+        "narHash": "sha256-iPMsyNszFA+EzjtIpjmu9EAG7zdjLbuugLtfa64dJos=",
         "type": "git",
         "url": "file:../?dir=lib"
       },

lib/src/modules/default.nix

@@ -187,7 +187,7 @@ lib: {
         in
           withFreeform (withMeta base);
       }
-      else builtins.throw "Module `${key}` has unsupported attribute(s): ${invalidKeys}";
+      else builtins.throw "Module `${key}` (${file}) has unsupported attribute(s): ${invalidKeys}";
 
     ## Convert a module that is either a function or an attribute set into
     ## a resolved attribute set. If the module was a function then it will
@@ -428,7 +428,7 @@ lib: {
                   matched = lib.options.run location option definitions';
                   unmatched = [];
                 }
-                else builtins.throw "The option `${lib.options.getIdentifier location}` in module `${(builtins.head optionDeclarations).__file__}` does not support nested options."
+                else builtins.throw "The option `${lib.options.getIdentifier location}` in module `${(builtins.head optionDeclarations).__file__}` would be a parent of the following options, but its type `${(builtins.head optionDeclarations).options.type.description or "<no description>"}` does not support nested options."
               else process location declarations definitions
           )
           declarationsByName;
@@ -611,7 +611,7 @@ lib: {
         collected =
           collect
           (args.path or "")
-          (modules ++ [internal])
+          ([internal] ++ modules)
           (
             {
               inherit options config;
@@ -625,7 +625,8 @@ lib: {
             // args
           );
       in
-        lib.modules.combine prefix (lib.lists.reverse collected);
+        lib.modules.combine
+        prefix (lib.lists.reverse collected);
 
       options = merged.matched;
 

lib/src/modules/default.test.nix

@@ -423,5 +423,36 @@ in {
       };
     in
       evaluated.config.aux.message == expected;
+
+    "submodules" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                default.value = {
+                  message = "hi";
+                };
+                type = lib.types.attrs.of (lib.types.submodule ({name}: {
+                  # freeform = lib.types.any;
+                  options.message = lib.options.create {
+                    type = lib.types.string;
+                  };
+                }));
+              };
+            };
+            config = {
+              aux = {
+                x = {
+                  message = "Hello, World!";
+                };
+              };
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.x.message == expected;
   };
 }

lib/src/types/default.nix

@@ -750,7 +750,13 @@ lib: {
         description ? null,
       }: let
         getModules = builtins.map (
-          definition: {
+          definition:
+            if builtins.isAttrs definition
+            then {
+              __file__ = definition.__file__;
+              config = definition.value;
+            }
+            else {
               __file__ = definition.__file__;
               includes = [definition.value];
             }
@@ -762,9 +768,6 @@ lib: {
           modules =
             [
               {
-                options.__module__.args.dynamic.name = lib.options.create {
-                  type = lib.types.string;
-                };
                 config.__module__.args.dynamic.name = lib.modules.overrides.default "<name>";
               }
             ]
@@ -989,7 +992,7 @@ lib: {
     ## @type List Attrs -> Attrs
     one = types: let
       first = builtins.elemAt types 0;
-      rest = lib.lists.tail types;
+      rest = builtins.tail types;
     in
       if types == []
       then builtins.throw "lib.types.one must be given at least one type"

potluck/default.nix

@@ -10,21 +10,24 @@
       ++ [
         ./src/export.nix
         {
-          __file__ = ./default.nix;
+          __file__ = "broken";
 
-          options.packages.aux = {
-            foundation = lib.options.create {
-              type = lib.types.attrs.of lib.types.package;
-              internal = true;
-              description = "The foundational packages used to construct the larger package set.";
-            };
-          };
+          # options.foundation = lib.options.create {
+          #   type = lib.types.attrs.of lib.types.derivation;
+          # };
 
-          config.packages.aux = {
-            foundation = foundation;
-          };
+          # config.foundation = foundation;
+          config.packages.foundation =
+            builtins.mapAttrs (name: package: {
+              name = package.name;
+
+              inherit package;
+
+              meta = package.meta;
+            })
+            foundation;
         }
       ];
   };
 in
-  result.config.exported
+  result.config

potluck/flake.lock

@@ -8,10 +8,10 @@
       },
       "locked": {
         "dir": "foundation",
-        "dirtyRev": "cd12786be17a611976b44fbba3e245eca512535f-dirty",
-        "dirtyShortRev": "cd12786-dirty",
-        "lastModified": 1718199069,
-        "narHash": "sha256-H2Mkyp9BPDPte+E++uIG2N/vGtcS3H9Q7tM3fOOEXT0=",
+        "dirtyRev": "9c29945531c58ad81f05cd1f4958c8894a733216-dirty",
+        "dirtyShortRev": "9c29945-dirty",
+        "lastModified": 1718255029,
+        "narHash": "sha256-fmrDe4GfvVfXZ9lzaOt+tgBUMFCsyKr0Dlnm8aQwAXs=",
         "type": "git",
         "url": "file:../?dir=foundation"
       },
@@ -24,10 +24,10 @@
     "lib": {
       "locked": {
         "dir": "lib",
-        "dirtyRev": "cd12786be17a611976b44fbba3e245eca512535f-dirty",
-        "dirtyShortRev": "cd12786-dirty",
-        "lastModified": 1718199069,
-        "narHash": "sha256-H2Mkyp9BPDPte+E++uIG2N/vGtcS3H9Q7tM3fOOEXT0=",
+        "dirtyRev": "9c29945531c58ad81f05cd1f4958c8894a733216-dirty",
+        "dirtyShortRev": "9c29945-dirty",
+        "lastModified": 1718255029,
+        "narHash": "sha256-fmrDe4GfvVfXZ9lzaOt+tgBUMFCsyKr0Dlnm8aQwAXs=",
         "type": "git",
         "url": "file:../?dir=lib"
       },

potluck/src/exports/modules.nix

@@ -2,7 +2,7 @@
   lib,
   config,
 }: let
-  cfg = config.exports.modules;
+  cfg = config.exports;
 
   type = lib.types.one [
     lib.types.path

potluck/src/exports/packages.nix

@@ -2,6 +2,7 @@
   config,
   lib,
 }: let
+  lib' = config.lib;
 in {
   options = {
     exports.packages = lib.options.create {
@@ -14,6 +15,8 @@ in {
   };
 
   config = {
-    exported.packages = {};
+    exported.packages = {
+      # i686-linux = config.packages.foundation;
+    };
   };
 }

potluck/src/lib/types.nix

@@ -107,7 +107,164 @@ in {
         };
       };
 
-      package = lib.types.submodule ({config}: {
+      package = {
+        base = lib.types.submodule ({config}: {
+          freeform = lib.types.any;
+
+          options = {
+            name = lib.options.create {
+              type = lib.types.string;
+              default = {
+                value = "${config.pname}-${config.version or "unknown"}";
+                text = "\${config.pname}-\${config.version}";
+              };
+              description = "The name of the package.";
+            };
+
+            pname = lib.options.create {
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+              description = "The name of the package.";
+            };
+
+            version = lib.options.create {
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+              description = "The version of the package.";
+            };
+
+            meta = lib.options.create {
+              type = lib'.types.meta;
+              default = {
+                text = "{ name = <package>.pname; }";
+                value = {
+                  name = config.pname;
+                };
+              };
+              description = "The metadata for the package.";
+            };
+
+            env = lib.options.create {
+              type = lib.types.attrs.of lib.types.string;
+              default.value = {};
+              description = "Environment variables for the package's builder to use.";
+            };
+
+            phases = lib.options.create {
+              type = lib.types.dag.of (
+                lib.types.either
+                lib.types.string
+                (lib.types.function lib.types.string)
+              );
+              default.value = {};
+              description = "Phases for the package's builder to use.";
+            };
+
+            platform = {
+              build = lib.options.create {
+                type = lib.types.nullish lib.types.string;
+                default.value = null;
+                description = "The platform the package is built on.";
+              };
+
+              host = lib.options.create {
+                type = lib.types.nullish lib.types.string;
+                default.value = null;
+                description = "The platform the package is run on.";
+              };
+
+              target = lib.options.create {
+                type = lib.types.nullish lib.types.string;
+                default.value = null;
+                description = "The platform the package generates code for.";
+              };
+            };
+
+            builder = lib.options.create {
+              type = lib'.types.builder;
+              description = "The builder for the package.";
+            };
+
+            package = lib.options.create {
+              type = lib.types.derivation;
+              default = {
+                value = config.builder.build config.builder config;
+                text = "<derivation>";
+              };
+              description = "The package derivation.";
+            };
+
+            deps = {
+              build = {
+                only = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are only used in the build environment.";
+                };
+
+                build = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are created in the build environment and are run in the build environment.";
+                };
+
+                host = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are created in the build environment and are run in the host environment.";
+                };
+
+                target = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are created in the build environment and are run in the target environment.";
+                };
+              };
+
+              host = {
+                only = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are only used in the host environment.";
+                };
+
+                host = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are run in the host environment.";
+                };
+
+                target = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are run in the host environment which produces code for the target environment.";
+                };
+              };
+
+              target = {
+                only = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are only used in the target environment.";
+                };
+
+                target = lib.options.create {
+                  type = lib'.types.dependencies;
+                  default.value = {};
+                  description = "Dependencies which are run in the target environment.";
+                };
+              };
+            };
+
+            versions = lib.options.create {
+              type = lib.types.attrs.of lib'.types.package;
+              default.value = {};
+              description = "Available versions of the package.";
+            };
+          };
+        });
+
+        targeted = lib.types.submodule ({config}: {
           freeform = lib.types.any;
 
           options = {
@@ -259,13 +416,46 @@ in {
             };
           };
         });
+      };
 
       dependencies = lib.types.attrs.of (lib.types.nullish lib'.types.package);
 
-      packages = lib.types.attrs.of (lib.types.submodule {
-        freeform = lib.types.nullish lib'.types.package;
+      packages = {
+        base = lib.types.attrs.of (lib.types.submodule {
+          freeform = lib'.types.package.base;
+
+          # options =
+          #   builtins.foldl' (result: system: {
+          #     "${system}" = lib.options.create {
+          #       type = lib'.types.packages.targeted;
+          #       default.value = {};
+          #       description = "Packages for the architecture `${system}`";
+          #     };
+          #   }) {}
+          #   lib'.systems.doubles.all;
         });
 
+        targeted = lib.types.attrs.of (lib.types.submodule {
+          freeform = lib.types.nullish lib'.types.package.targeted;
+
+          options = {
+            cross = lib.options.create {
+              type = lib'.types.packages.cross;
+              default.value = {};
+              description = "Cross-compiled packages targeting another architecture.";
+            };
+          };
+        });
+
+        # Cross-compiled packages are accessed via
+        # packages.cross.<platform>.<namespace>.<name>
+        cross = lib.types.attrs.of (lib.types.submodule {
+          freeform = lib.types.attrs.of (lib.types.submodule {
+            freeform = lib.types.nullish lib'.types.package.targeted;
+          });
+        });
+      };
+
       builder = lib.types.submodule {
         freeform = lib.types.any;
 

potluck/src/modules.nix

@@ -1,4 +1,5 @@
 {
   exports = ./exports;
   lib = ./lib;
+  packages = ./packages;
 }

potluck/src/packages/default.nix

@@ -3,19 +3,10 @@
   config,
 }: let
   lib' = config.lib;
-  # configure = namespace: packages:
-  #   builtins.mapAttrs
-  #   (key: package: let
-  #     name =
-  #       if package.pname != null && package.version != null
-  #       then "${package.pname}-${package.version}"
-  #       else key;
-  #   in {
-  #     name = lib.modules.overrides.default name;
-  #     package = lib.modules.overrides.default (package.builder package);
-  #   })
-  #   packages;
-  # configs = builtins.mapAttrs configure config.packages;
+
+  doubles = lib'.systems.doubles.all;
+
+  generic = builtins.removeAttrs config.packages ["targeted"];
 in {
   includes = [
     # ./aux/foundation.nix
@@ -23,9 +14,14 @@ in {
 
   options = {
     packages = lib.options.create {
-      type = lib'.types.packages;
+      default.value = {};
+      type = lib.types.attrs.of (lib.types.submodule {
+        freeform = lib.types.any;
+      });
     };
   };
 
-  # config = lib.modules.merge configs;
+  config = {
+    packages.targeted.i686-linux = generic;
+  };
 }