Merge pull request #269583 from Mic92/nix-unit

{ stdenv

, lib

, boost

, clang-tools

, cmake

, difftastic

, makeWrapper

, meson

, ninja

, nixVersions

, nlohmann_json

, pkg-config

, fetchFromGitHub

}:

stdenv.mkDerivation (finalAttrs: {

  pname = "nix-unit";

  version = "2.18.0";

  src = fetchFromGitHub {

    owner = "nix-community";

    repo = "nix-unit";

    rev = "v${finalAttrs.version}";

    hash = "sha256-9wq14p+85oW4HlD42NJ0jyA++z3nEYjFQ6uT40xdfbc=";

  };

  buildInputs = [

    nlohmann_json

    # We pin the nix version to a known working one here as upgrades can likely break the build.

    # Since the nix language is rather stable we don't always need to have the latest and greatest for unit tests

    # On each update of nix unit we should re-evaluate what version we need.

    nixVersions.nix_2_18

    boost

  ];

  nativeBuildInputs = [

    makeWrapper

    meson

    pkg-config

    ninja

    # nlohmann_json can be only discovered via cmake files

    cmake

  ] ++ lib.optional stdenv.cc.isClang [ clang-tools ];

  postInstall = ''

    wrapProgram "$out/bin/nix-unit" --prefix PATH : ${difftastic}/bin

  '';

  meta = {

    description = "Nix unit test runner";

    homepage = "https://github.com/nix-community/nix-unit";

    license = lib.licenses.gpl3;

    maintainers = with lib.maintainers; [ mic92 adisbladis ];

    platforms = lib.platforms.unix;

    mainProgram = "nix-unit";

  };

})