Nix Wire

{ stdenv, fetchurl, dpkg
, alsaLib, atk, cairo, cups, curl, dbus, expat, fontconfig, freetype, glib
, gnome2, libnotify, libxcb, nspr, nss, systemd, xorg }:

let

  version = "2.13.2741";

  rpath = stdenv.lib.makeLibraryPath [
    alsaLib
    atk
    cairo
    cups
    curl
    dbus
    expat
    fontconfig
    freetype
    glib
    gnome2.GConf
    gnome2.gdk_pixbuf
    gnome2.gtk
    gnome2.pango
    libnotify
    libxcb
    nspr
    nss
    stdenv.cc.cc
    systemd

    xorg.libxkbfile
    xorg.libX11
    xorg.libXcomposite
    xorg.libXcursor
    xorg.libXdamage
    xorg.libXext
    xorg.libXfixes
    xorg.libXi
    xorg.libXrandr
    xorg.libXrender
    xorg.libXtst
    xorg.libXScrnSaver
  ] + ":${stdenv.cc.cc.lib}/lib64";

  src =
    if stdenv.system == "x86_64-linux" then
      fetchurl {
        url = "https://wire-app.wire.com/linux/wire_${version}_amd64.deb";
        sha256 = "fa17278b9c9ebd9b66464b5230dc9c1187e7c7b34050ac5b2a756725d6836d8f";
      }
    else
      throw "Wire is not supported on ${stdenv.system}";

in stdenv.mkDerivation {
  name = "wire-${version}";

  inherit src;

  buildInputs = [ dpkg ];
  unpackPhase = "true";
  buildCommand = ''
    mkdir -p $out/opt
    mkdir -p $out/bin
    dpkg -x $src $out
    cp -av $out/usr/* $out
    rm -rf $out/usr

    # Otherwise it looks "suspicious"
    # chmod -R g-w $out

    # Fix the desktop link
    substituteInPlace $out/share/applications/wire-desktop.desktop \
      --replace /opt/ $out/

    ln -s $out/opt/wire-desktop/wire-desktop $out/bin/wire
  '';

  meta = with stdenv.lib; {
    description = "Desktop client for the Wire instant messenger";
    homepage = "https://wire.com";
    license = licenses.unfree;
    platforms = [ "x86_64-linux" ];
  };
}