steamtinkerlaunch: add steamcompattool output

    hash = "sha256-CGtSGAm+52t2zFsPJEsm76w+FEHhbOd9NYuerGa31tc=";

  };

  outputs = [ "out" "steamcompattool" ];

  installFlags = [ "PREFIX=\${out}" ];

  nativeBuildInputs = let

    # We need a `steam` command in order to install the compat tool

    fakeSteam = writeShellApplication {

      name = "steam";

      text = "exit 0";

    };

  in [

    fakeSteam

  ];

  postInstall =

    let

      # We (ab)use writeShellApplication to produce a header for a shell script

        text = "";

        bashOptions = [ ];

      };

      fakeYad = writeShellApplication {

        name = "yad";

        text = "echo ${yad.version} FAKE";

      };

    in

    ''

      cp $out/bin/steamtinkerlaunch $TMPDIR/steamtinkerlaunch

      install ${lib.getExe header} -T $out/bin/steamtinkerlaunch

      tail -n +2 $TMPDIR/steamtinkerlaunch >> $out/bin/steamtinkerlaunch

      # Create a fake steam dir, it checks this and reads a few values

      steamdir=$TMPDIR/.local/share/Steam/

      mkdir -p $steamdir/config/

      echo \"path\" \"$steamdir\" > $steamdir/config/config.vdf

      mkdir $TMPDIR/.steam/

      ln -s $steamdir $TMPDIR/.steam/steam

      cp -a $out/bin/steamtinkerlaunch $TMPDIR/steamtinkerlaunch

      # yad cannot print its version without a graphical session https://github.com/v1cont/yad/issues/277

      substituteInPlace $TMPDIR/steamtinkerlaunch --replace ${yad} ${fakeYad}

      HOME=$TMPDIR $TMPDIR/steamtinkerlaunch compat add

      cp -a $steamdir/compatibilitytools.d/SteamTinkerLaunch $steamcompattool

      # It creates this symlink but it points to $TMPDIR

      ln -sfn $out/bin/steamtinkerlaunch $steamcompattool/

    '';

  meta = with lib; {