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nixpkgs/pkgs/development/libraries/physics/hepmc3/default.nix
2021-01-30 09:51:24 -05:00

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1.7 KiB
Nix

{ lib, stdenv, fetchurl, cmake, coreutils, python, root }:
let
pythonVersion = with lib.versions; "${major python.version}${minor python.version}";
withPython = python != null;
# ensure that root is built with the same python interpreter, as it links against numpy
root_py = if withPython then root.override { inherit python; } else root;
in
stdenv.mkDerivation rec {
pname = "hepmc3";
version = "3.2.3";
src = fetchurl {
url = "http://hepmc.web.cern.ch/hepmc/releases/HepMC3-${version}.tar.gz";
sha256 = "sha256-jKrazCyWmIPNH5lLYieV/IhftLFdrYyK5kvL2/DL1H0=";
};
nativeBuildInputs = [ cmake ];
buildInputs = [ root_py ]
++ lib.optional withPython python;
cmakeFlags = [
"-DHEPMC3_ENABLE_PYTHON=${if withPython then "ON" else "OFF"}"
] ++ lib.optionals withPython [
"-DHEPMC3_PYTHON_VERSIONS=${if python.isPy3k then "3.X" else "2.X"}"
"-DHEPMC3_Python_SITEARCH${pythonVersion}=${placeholder "out"}/${python.sitePackages}"
];
postInstall = ''
substituteInPlace "$out"/bin/HepMC3-config \
--replace 'greadlink' '${coreutils}/bin/readlink' \
--replace 'readlink' '${coreutils}/bin/readlink'
'';
doInstallCheck = withPython;
# prevent nix from trying to dereference a null python
installCheckPhase = lib.optionalString withPython ''
PYTHONPATH=${placeholder "out"}/${python.sitePackages} python -c 'import pyHepMC3'
'';
meta = with lib; {
description = "The HepMC package is an object oriented, C++ event record for High Energy Physics Monte Carlo generators and simulation";
license = licenses.gpl3;
homepage = "http://hepmc.web.cern.ch/hepmc/";
platforms = platforms.unix;
maintainers = with maintainers; [ veprbl ];
};
}