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git.oat.zone--dark-firepit-.../lib/modules.nix
System administrator 9da0a143ae some refactoring
Co-authored-by: Jill Monoids <oatmealine@disroot.org>
2022-09-05 18:27:22 +02:00

28 lines
1.0 KiB
Nix

{ lib, ... }:
let
inherit (builtins) attrValues readDir pathExists;
inherit (lib) id filterAttrs hasPrefix hasSuffix nameValuePair removeSuffix mapAttrs' trace fix fold isAttrs;
in rec {
mapModules' = dir: fn: dirfn:
filterAttrs
(name: type: type != null && !(hasPrefix "_" name))
(mapAttrs'
(name: type:
let path = "${toString dir}/${name}"; in
if type == "directory"
then nameValuePair name (dirfn path)
else if
type == "regular" &&
name != "default.nix" &&
hasSuffix ".nix" name
then nameValuePair (removeSuffix ".nix" name) (fn path)
else nameValuePair "" null
)
(readDir dir));
mapModules = dir: fn: mapModules' dir fn (path: if pathExists "${path}/default.nix" then fn path else null);
mapModulesRec = dir: fn: mapModules' dir fn (path: mapModulesRec path fn);
mapModulesRec' = dir: fn: fix (f: attrs: fold (x: xs: (if isAttrs x then f x else [x]) ++ xs) [] (attrValues attrs)) (mapModulesRec dir fn);
}