blob: 7f3f621b84d4803d8f3ab6420afbc403851b7149 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
{ current-date
, current-host-name
, current-user-name
}:
let
lib = import <nixpkgs/lib>;
krebs-modules-path = ./krebs/3modules;
krebs-pkgs-path = ./krebs/5pkgs;
user-modules-path = ./. + "/${current-user-name}/3modules";
user-pkgs-path = ./. + "/${current-user-name}/5pkgs";
out =
(lib.mapAttrs
(k: v:
if builtins.pathExists (./. + "/${k}/1systems")
then mk-namespace (./. + "/${k}")
else import (./. + "/${k}"))
(lib.filterAttrs
(k: v: !lib.hasPrefix "." k && v == "directory")
(builtins.readDir ./.)));
eval = path: import <nixpkgs/nixos/lib/eval-config.nix> {
system = builtins.currentSystem;
modules = [
path
krebs-modules-path
user-modules-path
] ++ [
({ config, lib, pkgs, ... }@args: {
_module.args.pkgs =
(import krebs-pkgs-path args) //
(import user-pkgs-path args);
})
];
};
mk-namespace = path: mapNixDir mk-system (path + "/1systems");
mk-system = path: rec {
inherit (eval path) config options;
system = config.system.build.toplevel;
fetch = import ./krebs/0tools/fetch.nix { inherit config lib; };
};
mapNixDir = f: path: lib.mapAttrs (_: f) (nixDir path);
nixDir = path:
builtins.listToAttrs
(catMaybes
(lib.mapAttrsToList
(k: v: {
directory =
let p = path + "/${k}/default.nix"; in
if builtins.pathExists p
then Just (lib.nameValuePair k p)
else Nothing;
regular =
let p = path + "/${k}"; in
if lib.hasSuffix ".nix" p
then Just (lib.nameValuePair (lib.removeSuffix ".nix" k) p)
else Nothing;
}.${v} or Nothing)
(builtins.readDir path)));
# TODO move to lib
Just = x: { type = "maybe"; value = x; };
Nothing = { type = "maybe"; };
isMaybe = x: builtins.typeOf x == "set" && x.type or false == "maybe";
isJust = x: isMaybe x && builtins.hasAttr "value" x;
fromJust = x: assert isJust x; x.value;
catMaybes = xs: map fromJust (builtins.filter isJust xs);
in out
|
