flit-core, new python recipe (#7024)

dev-python/flit-core/flit_core-3.7.1.recipe

@@ -0,0 +1,63 @@
+SUMMARY="Simplified packaging of Python modules (core module)"
+DESCRIPTION="This provides a PEP 517 build backend for packages using Flit.
+The only public interface is the API specified by PEP 517, at ``flit_core.buildapi``."
+HOMEPAGE="https://pypi.org/project/flit_core/"
+COPYRIGHT="2015 Thomas Kluyver and contributors"
+LICENSE="BSD (3-clause)"
+REVISION="1"
+pypiVersion="ad/38/80992c4cb490a05474c886850ec818276d09c0a6722bd5b43bc487818ac7"
+SOURCE_URI="https://files.pythonhosted.org/packages/$pypiVersion/flit_core-$portVersion-py3-none-any.whl#noarchive"
+CHECKSUM_SHA256="e454fdbf68c7036e1c7435ec7479383f9d9a1650ca5b304feb184eba1efcdcef"
+
+ARCHITECTURES="any"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+
+PYTHON_PACKAGES=(python3 python38 python39 python310)
+PYTHON_VERSIONS=(3.7 3.8 3.9 3.10)
+for i in "${!PYTHON_PACKAGES[@]}"; do
+pythonPackage=${PYTHON_PACKAGES[i]}
+pythonVersion=${PYTHON_VERSIONS[$i]}
+eval "PROVIDES_${pythonPackage}=\"\
+	${portName}_$pythonPackage = $portVersion\
+	\"; \
+REQUIRES_$pythonPackage=\"\
+	haiku\n\
+	cmd:python$pythonVersion\
+	\""
+BUILD_REQUIRES="$BUILD_REQUIRES
+	setuptools_$pythonPackage"
+BUILD_PREREQUIRES="$BUILD_PREREQUIRES
+	installer_$pythonPackage
+	cmd:python$pythonVersion"
+done
+
+INSTALL()
+{
+	for i in "${!PYTHON_PACKAGES[@]}"; do
+		pythonPackage=${PYTHON_PACKAGES[i]}
+		pythonVersion=${PYTHON_VERSIONS[$i]}
+
+		python=python$pythonVersion
+		installLocation=$prefix/lib/$python/vendor-packages/
+		export PYTHONPATH=$installLocation:$PYTHONPATH
+		mkdir -p $installLocation
+		rm -rf build
+		$python -m installer -p $prefix flit_core-$portVersion-py3-none-any.whl
+
+		mv $installLocation/../site-packages/* $installLocation
+		rm -rf $installLocation/../site-packages
+
+		packageEntries  $pythonPackage \
+			$prefix/lib/python*
+	done
+}