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flake.nix: Configure the flake via NixOS module.

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This commit is contained in:
L. S. Leary
2022-04-20 05:05:27 +12:00
parent a5b708ba00
commit f3f0c712d8
1 changed files with 39 additions and 1 deletions
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40
flake.nix
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@@ -29,6 +29,41 @@
};
overlay = fromHOL hoverlay { };
overlays = [ overlay ];
nixosModule = { config, pkgs, lib, ... }: with lib; with attrsets;
let
cfg = config.services.xserver.windowManager.xmonad.flake;
comp = { inherit (cfg) prefix compiler; };
in {
options = {
services.xserver.windowManager.xmonad.flake = with types; {
enable = mkEnableOption "flake";
prefix = mkOption {
default = null;
type = nullOr string;
example = literalExpression "\"unstable\"";
description = ''
Specify a nested alternative <literal>pkgs</literal> by attrName.
'';
};
compiler = mkOption {
default = null;
type = nullOr string;
example = literalExpression "\"ghc922\"";
description = ''
Which compiler to build xmonad with.
Must be an attribute of <literal>pkgs.haskell.packages</literal>.
Sets <option>xmonad.haskellPackages</option> to match.
'';
};
};
};
config = mkIf cfg.enable {
nixpkgs.overlays = [ (fromHOL hoverlay comp) ];
services.xserver.windowManager.xmonad.haskellPackages =
getAttrFromPath (hpath comp) pkgs;
};
};
nixosModules = [ nixosModule ];
in flake-utils.lib.eachDefaultSystem (system:
let pkgs = import nixpkgs { inherit system overlays; };
in
@@ -37,5 +72,8 @@
packages = p: [ p.xmonad ];
};
defaultPackage = pkgs.haskellPackages.xmonad;
}) // { inherit hoverlay overlay overlays; lib = { inherit hpath fromHOL; }; };
}) // {
inherit hoverlay overlay overlays nixosModule nixosModules;
lib = { inherit hpath fromHOL; };
};
}