# SPDX-FileCopyrightText: Emery Hemingway
#
# SPDX-License-Identifier: LicenseRef-Hippocratic-1.1

{ stdenv, buildPackages, fetchFromGitHub }:

let
  ARCH =
    if stdenv.isx86_32 then "x86_32" else
    if stdenv.isx86_64 then "x86_64" else
    null;
in if ARCH == null then null else

buildPackages.stdenv.mkDerivation {
  # Borrow the build host compiler,
  name = "NOVA";
  inherit ARCH;

  src = fetchFromGitHub {
    owner = "alex-ab";
    repo = "NOVA";
    rev = "0ebcb4fc5a25d1df4451a89cbc87d88e099acbd3";
    sha256 = "0rkp59496032kq8a3l5fs771m5f7s5yywkxjk7j9qhmsidgk40wd";
  };

  enableParallelBuilding = true;

  makeFlags = [ "--directory=build" ];

  preInstall = "export INS_DIR=$out";

  meta = with stdenv.lib; {
    description =
      "The NOVA OS Virtualization Architecture is a project aimed at constructing a secure virtualization environment with a small trusted computing base.";
    homepage = "http://hypervisor.org/";
    license = licenses.gpl2;
    maintainers = [ maintainers.ehmry ];
  };

}