build, new python recipe (#7020)

dev-python/build/build-0.8.0.recipe

@@ -0,0 +1,68 @@
+SUMMARY="A simple, correct PEP 517 build frontend"
+DESCRIPTION="build will invoke the PEP 517 hooks to build a distribution package.
+It is a simple build tool and does not perform any dependency management."
+HOMEPAGE="https://pypi.org/project/build/"
+COPYRIGHT="2010-2022 Filipe Laíns"
+LICENSE="MIT"
+REVISION="1"
+SOURCE_URI="https://github.com/pypa/build/archive/refs/tags/0.8.0.tar.gz"
+CHECKSUM_SHA256="8aba5ec4dcb52ede2a87a62d1bea4052ca4fbc09422a807c43f119033acb9cd8"
+
+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 = $portVersion\n\
+	cmd:pyproject_build$pythonVersion\
+	\"; \
+REQUIRES_$pythonPackage=\"\
+	haiku\n\
+	cmd:python$pythonVersion\n\
+	flit_core_$pythonPackage\n\
+	importlib_metadata_$pythonPackage\n\
+	packaging_$pythonPackage\n\
+	pep517_$pythonPackage\n\
+	tomli_$pythonPackage\
+	\""
+BUILD_REQUIRES="$BUILD_REQUIRES
+	setuptools_$pythonPackage"
+BUILD_PREREQUIRES="$BUILD_PREREQUIRES
+	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
+		$python setup.py build install \
+			--root=/ --prefix=$prefix
+
+		mv $prefix/bin/pyproject-build $prefix/bin/pyproject-build$pythonVersion
+
+		packageEntries  $pythonPackage \
+			$prefix/lib/python* \
+			$prefix/bin
+	done
+}