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Merge pull request #392 from LSLeary/flake-module

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Apply Patch in Nix Flake; Enable Configuration
This commit is contained in:
Tony Zorman
2022-05-04 20:46:41 +02:00
committed by GitHub
parent 3009304352 90d0ca4a2e
commit 23df88d778
1 changed files with 64 additions and 11 deletions
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75
flake.nix
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@@ -1,20 +1,70 @@
# This file is maintained by @IvanMalison (github)
# This file is maintained by @IvanMalison and @LSLeary (github)
# See xmonad-contrib/NIX.md for an overview of module usage.
{
inputs = {
flake-utils.url = github:numtide/flake-utils;
git-ignore-nix.url = github:hercules-ci/gitignore.nix/master;
unstable.url = github:NixOS/nixpkgs/nixos-unstable;
};
outputs = { self, flake-utils, nixpkgs, git-ignore-nix }:
outputs = { self, flake-utils, nixpkgs, unstable, git-ignore-nix }:
let
overlay = final: prev: {
haskellPackages = prev.haskellPackages.override (old: {
overrides = prev.lib.composeExtensions (old.overrides or (_: _: {}))
(hself: hsuper: {
xmonad = hself.callCabal2nix "xmonad" (git-ignore-nix.lib.gitignoreSource ./.) { };
});
});
};
hpath = { prefix ? null, compiler ? null }:
(if prefix == null then [] else [ prefix ]) ++
(if compiler == null
then [ "haskellPackages" ]
else [ "haskell" "packages" compiler ]
);
fromHOL = hol: comp: final: prev: with prev.lib; with attrsets;
setAttrByPath (hpath comp)
((getAttrFromPath (hpath comp) prev).override (old: {
overrides = composeExtensions (old.overrides or (_: _: {}))
(hol final prev);
}));
patch = unstable
+ "/pkgs/development/haskell-modules/patches/xmonad_0_17_0-nix.patch";
hoverlay = final: prev: hself: hsuper:
with prev.haskell.lib.compose; {
xmonad = appendPatch patch
(hself.callCabal2nix "xmonad"
(git-ignore-nix.lib.gitignoreSource ./.) { });
};
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
@@ -23,5 +73,8 @@
packages = p: [ p.xmonad ];
};
defaultPackage = pkgs.haskellPackages.xmonad;
}) // { inherit overlay overlays; } ;
}) // {
inherit hoverlay overlay overlays nixosModule nixosModules;
lib = { inherit hpath fromHOL; };
};
}