pyproject_metadata, new python recipe (#8849)

dev-python/pyproject-metadata/pyproject_metadata-0.7.1.recipe

@@ -0,0 +1,66 @@
+SUMMARY="PEP 621 metadata parsing"
+DESCRIPTION="Dataclass for PEP 621 metadata with support for [core metadata] generation
+
+This project does not implement the parsing of *pyproject.toml* containing PEP 621 metadata.
+
+Instead, given a Python data structure representing PEP 621 metadata (already parsed), it will \
+validate this input and generate a PEP 643-compliant metadata file (e.g. *PKG-INFO*)."
+HOMEPAGE="https://github.com/FFY00/python-pyproject-metadata"
+COPYRIGHT="2019 Filipe Laíns"
+LICENSE="MIT"
+REVISION="1"
+SOURCE_URI="https://pypi.python.org/packages/source/p/pyproject-metadata/pyproject-metadata-$portVersion.tar.gz"
+CHECKSUM_SHA256="0a94f18b108b9b21f3a26a3d541f056c34edcb17dc872a144a15618fed7aef67"
+SOURCE_DIR="pyproject-metadata-$portVersion"
+
+ARCHITECTURES="any"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+
+PYTHON_PACKAGES=(python39 python310)
+PYTHON_VERSIONS=(3.9 3.10)
+for i in "${!PYTHON_PACKAGES[@]}"; do
+	pythonPackage=${PYTHON_PACKAGES[i]}
+	pythonVersion=${PYTHON_VERSIONS[$i]}
+
+	eval "PROVIDES_$pythonPackage=\"
+		${portName}_$pythonPackage = $portVersion
+		\""
+	eval "REQUIRES_$pythonPackage=\"
+		haiku
+		cmd:python$pythonVersion
+		\""
+	BUILD_REQUIRES+="
+		build_$pythonPackage
+		installer_$pythonPackage
+		setuptools_$pythonPackage
+		wheel_$pythonPackage
+		"
+	BUILD_PREREQUIRES+="
+		cmd:python$pythonVersion
+		"
+done
+
+INSTALL()
+{
+	for i in "${!PYTHON_PACKAGES[@]}"; do
+		pythonVersion=${PYTHON_VERSIONS[$i]}
+
+		python=python$pythonVersion
+
+		$python -m build --wheel --skip-dependency-check --no-isolation
+		$python -m installer -p $prefix dist/*.whl
+
+		packageEntries ${PYTHON_PACKAGES[i]} \
+			$prefix/lib/python*
+	done
+}