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Modular, context-aware and aspect-oriented dendritic Nix configurations.
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den.oeiuwq.com
configurations
den
dendritic
nix
aspect
oriented
1{
2 inputs,
3 lib,
4 withSystem,
5 ...
6}:
7let
8 # isolated test, prevent polution between tests.
9 denTest = module: {
10 inherit ((evalDen module).config) expr expected;
11 };
12
13 evalDen =
14 module:
15 lib.evalModules {
16 specialArgs = {
17 inherit inputs;
18 inherit withSystem;
19 };
20 modules = [
21 module
22 testModule
23 helpersModule
24 ];
25 };
26
27 testModule = {
28 imports = [ inputs.den.flakeModule ];
29 options.flake.nixosConfigurations = lib.mkOption { };
30 options.flake.darwinConfigurations = lib.mkOption { };
31 options.flake.homeConfigurations = lib.mkOption { };
32 options.flake.packages = lib.mkOption { };
33 options.expr = lib.mkOption { };
34 options.expected = lib.mkOption { };
35 config.den.schema.user.classes = lib.mkDefault [ "homeManager" ];
36 };
37
38 helpersModule =
39 { config, ... }:
40 let
41
42 iceberg = config.flake.nixosConfigurations.iceberg.config;
43 apple = config.flake.darwinConfigurations.apple.config;
44 igloo = config.flake.nixosConfigurations.igloo.config;
45 tuxHm = igloo.home-manager.users.tux;
46 pinguHm = igloo.home-manager.users.pingu;
47
48 sort = lib.sort (a: b: a < b);
49 show = items: builtins.trace (lib.concatStringsSep " / " (lib.flatten [ items ]));
50
51 funnyNames =
52 aspect:
53 let
54 resolve = config.den.lib.aspects.resolve;
55 mod = resolve "funny" [ ] aspect;
56 namesMod = {
57 options.names = lib.mkOption {
58 type = lib.types.listOf lib.types.str;
59 default = [ ];
60 };
61 };
62 res = lib.evalModules {
63 modules = [
64 mod
65 namesMod
66 ];
67 };
68 in
69 sort res.config.names;
70
71 in
72 {
73 _module.args = {
74 inherit
75 show
76 funnyNames
77 apple
78 igloo
79 iceberg
80 tuxHm
81 pinguHm
82 ;
83 };
84 };
85
86in
87{
88 _module.args = { inherit denTest evalDen; };
89
90 flake.packages.x86_64-linux.hello = inputs.nixpkgs.legacyPackages.x86_64-linux.hello;
91}