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{
lib,
stdenv,
buildPythonPackage,
fetchFromGitHub,
cargo,
hypothesis,
libiconv,
pytestCheckHook,
python,
pythonOlder,
pyyaml,
rustPlatform,
rustc,
setuptools-rust,
setuptools-scm,
typing-extensions,
typing-inspect,
}:
buildPythonPackage rec {
pname = "libcst";
version = "1.4.0";
format = "pyproject";
disabled = pythonOlder "3.7";
src = fetchFromGitHub {
owner = "instagram";
repo = "libcst";
rev = "refs/tags/v${version}";
hash = "sha256-H0YO8ILWOyhYdosNRWQQ9wziFk0syKSG3vF2zuYkL2k=";
};
cargoDeps = rustPlatform.fetchCargoTarball {
inherit src;
sourceRoot = "${src.name}/${cargoRoot}";
name = "${pname}-${version}";
hash = "sha256-AcqHn3A7WCVyVnOBD96k4pxokhzgmCWOipK/DrIAQkU=";
};
cargoRoot = "native";
postPatch = ''
# avoid infinite recursion by not formatting the release files
substituteInPlace libcst/codegen/generate.py \
--replace '"ufmt"' '"true"'
'';
nativeBuildInputs = [
setuptools-rust
setuptools-scm
rustPlatform.cargoSetupHook
cargo
rustc
];
buildInputs = lib.optionals stdenv.isDarwin [ libiconv ];
propagatedBuildInputs = [
typing-extensions
typing-inspect
pyyaml
];
nativeCheckInputs = [
hypothesis
pytestCheckHook
];
preCheck = ''
# otherwise import libcst.native fails
cp build/lib.*/libcst/native.* libcst/
${python.interpreter} -m libcst.codegen.generate visitors
${python.interpreter} -m libcst.codegen.generate return_types
# Can't run all tests due to circular dependency on hypothesmith -> libcst
rm -r {libcst/tests,libcst/codegen/tests,libcst/m*/tests}
'';
disabledTests = [
# No files are generated
"test_codemod_formatter_error_input"
];
pythonImportsCheck = [ "libcst" ];
meta = with lib; {
description = "Concrete Syntax Tree (CST) parser and serializer library for Python";
homepage = "https://github.com/Instagram/libcst";
changelog = "https://github.com/Instagram/LibCST/blob/v${version}/CHANGELOG.md";
license = with licenses; [
mit
asl20
psfl
];
maintainers = with maintainers; [ ];
};
}
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