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path: root/pkgs/development/python-modules/debugpy/default.nix
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{ lib
, stdenv
, buildPythonPackage
, fetchFromGitHub
, fetchpatch
, substituteAll
, gdb
, flask
, psutil
, pytest-timeout
, pytest_xdist
, pytestCheckHook
, requests
, isPy27
, django
, gevent
}:

buildPythonPackage rec {
  pname = "debugpy";
  version = "1.3.0";

  src = fetchFromGitHub {
    owner = "Microsoft";
    repo = pname;
    rev = "v${version}";
    hash = "sha256-YGzc9mMIzPTmUgIXuZROLdYKjUm69x9SR+JtYRVpn24=";
  };

  patches = [
    # Hard code GDB path (used to attach to process)
    (substituteAll {
      src = ./hardcode-gdb.patch;
      inherit gdb;
    })

    # Use nixpkgs version instead of versioneer
    (substituteAll {
      src = ./hardcode-version.patch;
      inherit version;
    })

    # Fix importing debugpy in:
    # - test_nodebug[module-launch(externalTerminal)]
    # - test_nodebug[module-launch(integratedTerminal)]
    #
    # NOTE: The import failures seen in these tests without the patch
    # will be seen if a user "installs" debugpy by adding it to PYTHONPATH.
    # To avoid this issue, debugpy should be installed using python.withPackages:
    # python.withPackages (ps: with ps; [ debugpy ])
    ./fix-test-pythonpath.patch

    # Fix tests with flask>=2.0
    (fetchpatch {
      url = "https://github.com/microsoft/debugpy/commit/0a7f2cd67dda27ea4d38389b49a4e2a1899b834e.patch";
      sha256 = "1g070fn07n7jj01jaf5s570zn70akf6klkamigs3ix11gh736rpn";
    })
  ];

  # Remove pre-compiled "attach" libraries and recompile for host platform
  # Compile flags taken from linux_and_mac/compile_linux.sh & linux_and_mac/compile_mac.sh
  preBuild = ''(
    set -x
    cd src/debugpy/_vendored/pydevd/pydevd_attach_to_process
    rm *.so *.dylib *.dll *.exe *.pdb
    ${stdenv.cc}/bin/c++ linux_and_mac/attach.cpp -Ilinux_and_mac -fPIC -nostartfiles ${{
      "x86_64-linux"  = "-shared -m64 -o attach_linux_amd64.so";
      "i686-linux"    = "-shared -m32 -o attach_linux_x86.so";
      "x86_64-darwin" = "-std=c++11 -lc -D_REENTRANT -dynamiclib -arch x86_64 -o attach_x86_64.dylib";
      "i686-darwin"   = "-std=c++11 -lc -D_REENTRANT -dynamiclib -arch i386 -o attach_x86.dylib";
    }.${stdenv.hostPlatform.system}}
  )'';

  checkInputs = [
    flask
    psutil
    pytest-timeout
    pytest_xdist
    pytestCheckHook
    requests
  ] ++ lib.optionals (!isPy27) [
    django
    gevent
  ];

  # Override default arguments in pytest.ini
  pytestFlagsArray = [ "--timeout=0" "-n=$NIX_BUILD_CORES" ];

  disabledTests = lib.optionals isPy27 [
    # django 1.11 is the last version to support Python 2.7
    # and is no longer built in nixpkgs
    "django"

    # gevent fails to import zope.interface with Python 2.7
    "gevent"
  ];

  pythonImportsCheck = [ "debugpy" ];

  meta = with lib; {
    description = "An implementation of the Debug Adapter Protocol for Python";
    homepage = "https://github.com/microsoft/debugpy";
    license = licenses.mit;
    maintainers = with maintainers; [ kira-bruneau ];
    platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "i686-darwin" ];
  };
}