nixpkgs/pkgs/applications/window-managers/river/default.nix

{ lib, stdenv ,fetchFromGitHub
, zig, wayland, pkg-config, scdoc
, xwayland, wayland-protocols, wlroots
, libxkbcommon, pixman, udev, libevdev, libX11, libGL
}:

stdenv.mkDerivation rec {
  pname = "river";
  version = "unstable-2021-05-07";

  src = fetchFromGitHub {
    owner = "ifreund";
    repo = pname;
    rev = "7ffa2f4b9e7abf7d152134f555373c2b63ccfc1d";
    sha256 = "1z5qjid73lfn654f2k74nwgvpr88fpdfpbzhihybx9cyy1mqfz7j";
    fetchSubmodules = true;
  };

  buildInputs = [ wayland-protocols wlroots pixman
    libxkbcommon pixman udev libevdev libX11 libGL
  ];

  dontConfigure = true;

  preBuild = ''
    export HOME=$TMPDIR
  '';
  installPhase = ''
    runHook preInstall
    zig build -Drelease-safe -Dxwayland -Dman-pages --prefix $out install
    runHook postInstall
  '';

  nativeBuildInputs = [ zig wayland xwayland scdoc pkg-config ];

  # Builder patch install dir into river to get default config
  # When installFlags is removed, river becomes half broken
  # see https://github.com/ifreund/river/blob/7ffa2f4b9e7abf7d152134f555373c2b63ccfc1d/river/main.zig#L56
  installFlags = [ "DESTDIR=$(out)" ];

  meta = with lib; {
    homepage = "https://github.com/ifreund/river";
    description = "A dynamic tiling wayland compositor";
    license = licenses.gpl3Plus;
    platforms = platforms.linux;
    maintainers = with maintainers; [ ];
  };
}