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nixos-config/overlays/default.nix
2021-05-18 16:33:28 +02:00

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Nix

{ lib }:
let
overlayPath = ./.;
candidates = lib.attrNames (builtins.readDir overlayPath);
pathToOverlay = n: overlayPath + ("/" + n);
isNixFile = n: builtins.match ".*\\.nix" n != null;
isNixDir = n: builtins.pathExists (pathToOverlay n + "/default.nix");
notDefault = n: n != "default.nix";
isOverlay = n: (isNixDir n || isNixFile n) && notDefault n;
overlays = builtins.filter isOverlay candidates;
importOverlay = n: import (pathToOverlay n);
in
map importOverlay overlays