gcovr: build from source, enable tests

{

  stdenv,

  lib,

  python3Packages,

  fetchPypi,

  fetchFromGitHub,

  writableTmpDirAsHomeHook,

  gitMinimal,

}:

python3Packages.buildPythonPackage rec {

  disabled = python3Packages.pythonOlder "3.9";

  src = fetchPypi {

    inherit pname version;

    hash = "sha256-jqDPIxdrECnyjbZ51xLKZHezgHCXw3VcE1vcU7Uc+nI=";

  src = fetchFromGitHub {

    owner = "gcovr";

    repo = "gcovr";

    tag = version;

    hash = "sha256-v3jNODYD9qa3mwttfuldhhIHrfR5LcsZ+WNWiOWb35E=";

  };

  build-system = with python3Packages; [

      ++ lib.optionals (pythonOlder "3.11") [ tomli ]

    );

  # There are no unit tests in the pypi tarball. Most of the unit tests on the

  # github repository currently only work with gcc5, so we just disable them.

  # See also: https://github.com/gcovr/gcovr/issues/206

  # Despite the CI passing many GCC version, ~300 tests are failing on nixos

  doCheck = false;

  pythonImportsCheck = [

    "gcovr"

    "gcovr.configuration"

  ];

  preCheck = ''

    rm -rf src # this causes some pycache issues

    rm -rf admin/bump_version.py

    export CC_REFERENCE="gcc-${lib.versions.major stdenv.cc.version}"

  '';

  nativeCheckInputs = with python3Packages; [

    writableTmpDirAsHomeHook

    pytestCheckHook

    pytest-timeout

    yaxmldiff

    nox

    requests

    gitMinimal

  ];

  disabledTests = [

    # too fragile

    "test_build"

    "test_example"

    # assert 40 == 30 on log levels

    "test_multiple_output_formats_to_stdout"

    "test_multiple_output_formats_to_stdout_1"

  ];

  meta = {

    description = "Python script for summarizing gcov data";

    homepage = "https://www.gcovr.com/";