# This provides a shell with all the necesarry packages required to run mach and build servo
# NOTE: This does not work offline or for nix-build

with import <nixpkgs> {};

clangStdenv.mkDerivation rec {
  name = "servo-env";

  buildInputs = [
    # Native dependencies
    fontconfig freetype openssl libunwind
    xlibs.libxcb x11

    gst_all_1.gstreamer
    gst_all_1.gst-plugins-base
    gst_all_1.gst-plugins-bad

    rustup

    # Build utilities
    cmake dbus gcc git pkgconfig which llvm autoconf213 perl yasm m4
    (python3.withPackages (ps: with ps; [virtualenv pip dbus]))
  ];

  LIBCLANG_PATH = llvmPackages.clang-unwrapped.lib + "/lib/";

  # Allow cargo to download crates
  SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";

  # Enable colored cargo and rustc output
  TERMINFO = "${ncurses.out}/share/terminfo";

  # Fix missing libraries errors (those libraries aren't linked against, so we need to dynamically supply them)
  LD_LIBRARY_PATH = lib.makeLibraryPath [ xorg.libXcursor xorg.libXrandr xorg.libXi libxkbcommon ];

  shellHook = ''
    # Fix invalid option errors during linking
    # https://github.com/mozilla/nixpkgs-mozilla/commit/c72ff151a3e25f14182569679ed4cd22ef352328
    unset AS
  '';
}