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nixos-config/overlays/flake-module.nix
2023-05-22 04:08:50 +02:00

21 lines
775 B
Nix

{ lib, inputs, ... }: {
perSystem = { inputs', ... }: {
_module.args.pkgs = inputs'.nixos-stable.legacyPackages.appendOverlays ([
(_: _: {
flake-inputs = inputs;
flake-inputs' = inputs';
})
] ++ (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 != "flake-module.nix";
isOverlay = n: (isNixDir n || isNixFile n) && notDefault n;
overlays = builtins.filter isOverlay candidates;
importOverlay = n: import (pathToOverlay n);
in map importOverlay overlays));
};
}