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path: root/pkgs/games/steam/chrootenv.nix
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{ stdenv, lib, writeScript, buildFHSUserEnv, steam
, steam-runtime, steam-runtime-i686 ? null
, withJava ? false
, withPrimus ? false
, nativeOnly ? false
, runtimeOnly ? false
, newStdcpp ? false
}:

let
  commonTargetPkgs = pkgs: with pkgs;
    let primus2 =
      if newStdcpp then primus else primus.override {
        stdenv = overrideInStdenv stdenv [ useOldCXXAbi ];
        stdenv_i686 = overrideInStdenv pkgsi686Linux.stdenv [ useOldCXXAbi ];
      };
    in [
      steamPackages.steam-fonts
      # Errors in output without those
      pciutils
      python2
      # Games' dependencies
      xlibs.xrandr
      which
      # Needed by gdialog, including in the steam-runtime
      perl
      # Open URLs
      xdg_utils
    ] ++ lib.optional withJava jdk
      ++ lib.optional withPrimus primus2;

in buildFHSUserEnv rec {
  name = "steam";

  targetPkgs = pkgs: with pkgs; [
    steamPackages.steam
    # License agreement
    gnome3.zenity
  ] ++ commonTargetPkgs pkgs;

  multiPkgs = pkgs: with pkgs; [
    # These are required by steam with proper errors
    xlibs.libXcomposite
    xlibs.libXtst
    xlibs.libXrandr
    xlibs.libXext
    xlibs.libX11
    xlibs.libXfixes

    # Not formally in runtime but needed by some games
    gst_all_1.gstreamer
    gst_all_1.gst-plugins-ugly
    libdrm

    (steamPackages.steam-runtime-wrapped.override {
      inherit nativeOnly runtimeOnly newStdcpp;
    })
  ];

  extraBuildCommands = ''
    mkdir -p steamrt
    ln -s ../lib/steam-runtime steamrt/${steam-runtime.arch}
    ${lib.optionalString (steam-runtime-i686 != null) ''
      ln -s ../lib32/steam-runtime steamrt/${steam-runtime-i686.arch}
    ''}
  '';

  extraInstallCommands = ''
    mkdir -p $out/share/applications
    ln -s ${steam}/share/icons $out/share
    ln -s ${steam}/share/pixmaps $out/share
    sed "s,/usr/bin/steam,$out/bin/steam,g" ${steam}/share/applications/steam.desktop > $out/share/applications/steam.desktop
  '';

  profile = ''
    export STEAM_RUNTIME=/steamrt
  '';

  runScript = "steam";

  passthru.run = buildFHSUserEnv {
    name = "steam-run";

    targetPkgs = commonTargetPkgs;
    inherit multiPkgs extraBuildCommands;

    runScript =
      let ldPath = map (x: "/steamrt/${steam-runtime.arch}/" + x) steam-runtime.libs
                 ++ lib.optionals (steam-runtime-i686 != null) (map (x: "/steamrt/${steam-runtime-i686.arch}/" + x) steam-runtime-i686.libs);
      in writeScript "steam-run" ''
        #!${stdenv.shell}
        run="$1"
        if [ "$run" = "" ]; then
          echo "Usage: steam-run command-to-run args..." >&2
          exit 1
        fi
        shift
        export LD_LIBRARY_PATH=${lib.concatStringsSep ":" ldPath}:$LD_LIBRARY_PATH
        exec "$run" "$@"
      '';
  };
}