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{ lib
, stdenv
, fetchurl
, buildPythonPackage
, fetchPypi
, fetchFromGitHub
, rustPlatform
, maturin
, pytestCheckHook
, libiconv
, numpy
, pandas
, pyarrow
, pytest
}:
let
# le sigh, the perils of unrelated versions of software living in the same
# repo: there's no obvious way to map the top level source repo
# (arrow-datafusion) version to the version of contained repo
# (arrow-datafusion/python)
#
# A commit hash will do in a pinch, and ultimately the sha256 has the final
# say of what the content is when building
cargoLock = fetchurl {
url = "https://raw.githubusercontent.com/apache/arrow-datafusion/6.0.0/python/Cargo.lock";
sha256 = "sha256-xiv3drEU5jOGsEIh0U01ZQ1NBKobxO2ctp4mxy9iigw=";
};
postUnpack = ''
cp "${cargoLock}" $sourceRoot/Cargo.lock
chmod u+w $sourceRoot/Cargo.lock
'';
in
buildPythonPackage rec {
pname = "datafusion";
version = "0.4.0";
format = "pyproject";
src = fetchPypi {
inherit pname version;
sha256 = "sha256-+YqogteKfNhtI2QbVXv/5CIWm3PcOH653dwONm5ZcL8=";
};
inherit postUnpack;
# TODO: remove the patch hacking and postUnpack hooks after
# https://github.com/apache/arrow-datafusion/pull/1508 is merged
#
# the lock file isn't up to date as of 6.0.0 so we need to patch the source
# lockfile and the vendored cargo deps lockfile
patches = [ ./Cargo.lock.patch ];
cargoDeps = rustPlatform.fetchCargoTarball {
inherit src pname version postUnpack;
sha256 = "sha256-JGyDxpfBXzduJaMF1sbmRm7KJajHYdVSj+WbiSETiY0=";
patches = [ ./Cargo.lock.patch ];
};
nativeBuildInputs = with rustPlatform; [
cargoSetupHook
maturinBuildHook
];
buildInputs = lib.optionals stdenv.isDarwin [ libiconv ];
propagatedBuildInputs = [
numpy
pandas
pyarrow
];
checkInputs = [ pytest ];
pythonImportsCheck = [ "datafusion" ];
checkPhase = ''
runHook preCheck
pytest --pyargs "${pname}"
runHook postCheck
'';
meta = with lib; {
description = "Extensible query execution framework";
longDescription = ''
DataFusion is an extensible query execution framework, written in Rust,
that uses Apache Arrow as its in-memory format.
'';
homepage = "https://arrow.apache.org/datafusion/";
license = with licenses; [ asl20 ];
maintainers = with maintainers; [ cpcloud ];
};
}
|