Unverified Commit 117b2045 authored by Wolfgang Walther's avatar Wolfgang Walther
Browse files

keen4: modernize 

It all starts with fixing the broken download URL and then simplifies
from there. The file is short and old enough to basically just rewrite
it once.
parent 367c15cf

pkgs/by-name/ke/keen4/package.nix

+28 −41
Original line number Diff line number Diff line 
{

  lib,

  stdenv,

  fetchurl,

  dosbox,

  unzip,

  fetchzip,

  lib,

  writeShellApplication,

}:



stdenv.mkDerivation {

  name = "keen4";



  src = fetchurl {

    url = "http://tarballs.nixos.org/keen4.zip";

    sha256 = "12rnc9ksl7v6l8wsxvr26ylkafzq80dbsa7yafzw9pqc8pafkhx1";

let

  zip = fetchzip {

    name = "keen4.zip";

    url = "https://archive.org/download/msdos_Commander_Keen_4_-_Secret_of_the_Oracle_1991/Commander_Keen_4_-_Secret_of_the_Oracle_1991.zip";

    hash = "sha256-vVfBQArNH1JPUxM5suMe8NK54a+NAMnDhLKxVUOzUgA=";

  };

in

writeShellApplication {

  name = "keen4";



  nativeBuildInputs = [ unzip ];



  installPhase = ''

    mkdir -p $out/share/keen4

    mv * $out/share/keen4



    mkdir -p $out/bin

    cat > $out/bin/keen4 <<EOF

    #! $SHELL -e

    if test -z "\$HOME"; then

        echo "HOME directory not set"

        exit 1

    fi

  runtimeInputs = [ dosbox ];



  # Game wants to write in the current directory, but of course we can't

  # let it write in the Nix store.  So create symlinks to the game files

  # in ~/.keen4 and execute game from there.

    mkdir -p \$HOME/.keen4

    cd \$HOME/.keen4



    ln -sf $out/share/keen4/* .



    ${dosbox}/bin/dosbox ./KEEN4E.EXE -fullscreen -exit || true



    # Cleanup the symlinks.

    for i in *; do

        if test -L "\$i"; then

            rm "\$i"

        fi

    done

    EOF

    chmod +x $out/bin/keen4

  text = ''

    mkdir -p "''${HOME:-.}/.keen4"

    cd "''${HOME:-.}/.keen4"

    # avoid linking CONFIG.CK4, which must be writable

    ln -sft . ${zip}/{AUDIO.CK4,EGAGRAPH.CK4,GAMEMAPS.CK4,KEEN4E.EXE}

    trap 'find . -type l -delete' EXIT



    dosbox ./KEEN4E.EXE -fullscreen -exit

  '';



  meta = {

    description = "Commander Keen Episode 4: Secret of the Oracle";

    license = lib.licenses.unfree;

    homepage = "https://web.archive.org/web/20141013080934/http://www.3drealms.com/keen4/index.html";

    downloadPage = "https://archive.org/details/msdos_Commander_Keen_4_-_Secret_of_the_Oracle_1991";

    license = lib.licenses.unfreeRedistributable;

    platforms = dosbox.meta.platforms;

    sourceProvenance = with lib.sourceTypes; [ binaryBytecode ]; # emulated by dosbox, so "bytecode" in a way

    maintainers = with lib.maintainers; [ wolfgangwalther ];

    mainProgram = "keen4";

  };

}