SUMMARY="PEP 518 build backend combining flit with setuptools_scm"
DESCRIPTION="A PEP 518 build backend that uses setuptools_scm to generate a version file from \
your version control system, then flit_core to build the package."
HOMEPAGE="https://gitlab.com/WillDaSilva/flit_scm"
COPYRIGHT="2021 Will Da Silva"
LICENSE="MIT"
REVISION="2"
SOURCE_URI="https://files.pythonhosted.org/packages/source/${portName:0:1}/$portName/$portName-$portVersion.tar.gz"
CHECKSUM_SHA256="961bd6fb24f31bba75333c234145fff88e6de0a90fc0f7e5e7c79deca69f6bb2"

ARCHITECTURES="any"

PROVIDES="
	$portName = $portVersion
	"
REQUIRES="
	haiku
	"

BUILD_REQUIRES="
	haiku_devel
	"

PYTHON_VERSIONS=(3.10)

for pythonVersion in ${PYTHON_VERSIONS[@]}; do
	pythonPackage=python${pythonVersion//.}

	eval "PROVIDES_$pythonPackage=\"
		${portName}_$pythonPackage = $portVersion
		\""
	eval "REQUIRES_$pythonPackage=\"
		haiku
		flit_core_$pythonPackage
		setuptools_scm_$pythonPackage
		tomli_$pythonPackage
		cmd:python$pythonVersion
		\""
	BUILD_REQUIRES+="
		flit_core_$pythonPackage
		setuptools_scm_$pythonPackage
		tomli_$pythonPackage
		"
	BUILD_PREREQUIRES+="
		build_$pythonPackage
		installer_$pythonPackage
		cmd:python$pythonVersion
		"
done

INSTALL()
{
	export SETUPTOOLS_SCM_PRETEND_VERSION=$portVersion

	for pythonVersion in ${PYTHON_VERSIONS[@]}; do
		pythonPackage=python${pythonVersion//.}

		python=python$pythonVersion

		$python -m build --wheel --skip-dependency-check --no-isolation
		$python -m installer -p $prefix dist/*.whl

		packageEntries $pythonPackage \
			$prefix/lib/python*
	done
}