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poky/meta/classes-recipe/python_pep517.bbclass
Ross Burton 3ca199c5f8 classes/python_pep517: centralise shared inherits
For the build process to actually work some inherits are always needed:

- python3native for the python that is actually running build.
- setuptools3-base (badly named) defines how to build extensions and
  where to put modules.

Instead of inheriting these in every class, inherit them once in the
python_pep517 class.

(From OE-Core rev: 449b226aca6a5db378dc5576dde47499925dfb26)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-08-04 18:04:03 +01:00

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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
# Common infrastructure for Python packages that use PEP-517 compliant packaging.
# https://www.python.org/dev/peps/pep-0517/
#
# This class will build a wheel in do_compile, and use pypa/installer to install
# it in do_install.
inherit python3native python3-dir setuptools3-base
DEPENDS:append = " python3-build-native python3-installer-native"
# Where to execute the build process from
PEP517_SOURCE_PATH ?= "${S}"
# The directory where wheels will be written
PEP517_WHEEL_PATH ?= "${WORKDIR}/dist"
# Other options to pass to build
PEP517_BUILD_OPTS ?= ""
# The interpreter to use for installed scripts
PEP517_INSTALL_PYTHON = "python3"
PEP517_INSTALL_PYTHON:class-native = "nativepython3"
# pypa/installer option to control the bytecode compilation
INSTALL_WHEEL_COMPILE_BYTECODE ?= "--compile-bytecode=0"
# PEP517 doesn't have a specific configure step, so set an empty do_configure to avoid
# running base_do_configure.
python_pep517_do_configure () {
:
}
# When we have Python 3.11 we can parse pyproject.toml to determine the build
# API entry point directly
python_pep517_do_compile () {
nativepython3 -m build --no-isolation --wheel --outdir ${PEP517_WHEEL_PATH} ${PEP517_SOURCE_PATH} ${PEP517_BUILD_OPTS}
}
do_compile[cleandirs] += "${PEP517_WHEEL_PATH}"
python_pep517_do_install () {
COUNT=$(find ${PEP517_WHEEL_PATH} -name '*.whl' -maxdepth 1 | wc -l)
if test $COUNT -eq 0; then
bbfatal No wheels found in ${PEP517_WHEEL_PATH}
elif test $COUNT -gt 1; then
bbfatal More than one wheel found in ${PEP517_WHEEL_PATH}, this should not happen
fi
nativepython3 -m installer ${INSTALL_WHEEL_COMPILE_BYTECODE} --interpreter "${USRBINPATH}/env ${PEP517_INSTALL_PYTHON}" --destdir=${D} ${PEP517_WHEEL_PATH}/*.whl
find ${D} -path *.dist-info/RECORD -delete
}
# A manual do_install that just uses unzip for bootstrapping purposes. Callers should DEPEND on unzip-native.
python_pep517_do_bootstrap_install () {
install -d ${D}${PYTHON_SITEPACKAGES_DIR}
unzip -d ${D}${PYTHON_SITEPACKAGES_DIR} ${PEP517_WHEEL_PATH}/*.whl
}
EXPORT_FUNCTIONS do_configure do_compile do_install
# Tell externalsrc this changing means it needs to reconfigure
CONFIGURE_FILES += "pyproject.toml"