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openwrt-packages/lang/python/python3-host-build.mk

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python: Add pyproject.toml-based builds for host Python packages Using pip to install host packages with pyproject.toml-based (PEP 517) builds is problematic: * If build isolation is used, pip will create an isolated build environment, install any build dependencies for the requested package, then build the requested package. It does not appear currently possible to have pip install the build dependencies with hash-checking mode enabled[1]. * If build isolation is not used, any build dependencies must be installed in the build environment before invoking pip to build the requested package[2]. This would require creating a package dependency resolution system to install build dependencies, and any dependencies of dependencies, in the correct order. * It is very difficult to patch the packages installed by pip. This adds a new include file (python3-host-build.mk) with recipes to install host Python packages with pyproject.toml-based builds. This is backwards-compatible with packages that require running setup.py. Besides addressing the above issues (the OpenWrt build system already resolves dependencies between packages, checks all source downloads against known hashes, and supports patching packages), host packages also: * Capture package licensing and maintainer information * Enable uscan checking for package updates/CVEs * Are a known concept for OpenWrt packagers/developers The existing functionality of using host pip to install packages will remain for now, but should be considered deprecated and expected to be removed in the future. This also updates Py3Build/CheckHostPipVersionMatch for the case where the host-pip-requirements directory does not exist or is empty. [1]: https://pip.pypa.io/en/stable/user_guide/#changes-to-the-pip-dependency-resolver-in-20-3-2020 [2]: https://pip.pypa.io/en/stable/cli/pip_install/#cmdoption-no-build-isolation Signed-off-by: Jeffery To <jeffery.to@gmail.com>
2023-02-25 12:42:39 +01:00
#
# Copyright (C) 2023 Jeffery To
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
python3_mk_path:=$(dir $(lastword $(MAKEFILE_LIST)))
include $(python3_mk_path)python3-host.mk
PYTHON3_HOST_BUILD?=1
PYTHON3_HOST_BUILD_CONFIG_SETTINGS?=
PYTHON3_HOST_BUILD_VARS?=
PYTHON3_HOST_BUILD_ARGS?=
PYTHON3_HOST_BUILD_PATH?=
PYTHON3_HOST_INSTALL_VARS?=
PYTHON3_HOST_WHEEL_NAME?=$(subst -,_,$(if $(PYPI_SOURCE_NAME),$(PYPI_SOURCE_NAME),$(PKG_NAME)))
PYTHON3_HOST_WHEEL_VERSION?=$(PKG_VERSION)
PYTHON3_HOST_BUILD_DIR?=$(HOST_BUILD_DIR)/$(PYTHON3_HOST_BUILD_PATH)
PYTHON3_HOST_DIR_NAME:=$(lastword $(subst /,$(space),$(CURDIR)))
PYTHON3_HOST_STAGING_DIR:=$(TMP_DIR)/host-stage-$(PYTHON3_HOST_DIR_NAME)
PYTHON3_HOST_STAGING_FILES_LIST_DIR:=$(HOST_BUILD_PREFIX)/stamp
PYTHON3_HOST_STAGING_FILES_LIST:=$(PYTHON3_HOST_STAGING_FILES_LIST_DIR)/$(PYTHON3_HOST_DIR_NAME).list
define Py3Host/Compile/Bootstrap
$(call HostPython3/Run, \
$(HOST_BUILD_DIR), \
-m flit_core.wheel \
--outdir "$(PYTHON3_HOST_BUILD_DIR)"/openwrt-build \
"$(PYTHON3_HOST_BUILD_DIR)" \
)
endef
define Py3Host/Compile
$(call HostPython3/Run, \
$(HOST_BUILD_DIR), \
-m build \
--no-isolation \
--outdir "$(PYTHON3_HOST_BUILD_DIR)"/openwrt-build \
--wheel \
$(foreach setting,$(PYTHON3_HOST_BUILD_CONFIG_SETTINGS),--config-setting=$(setting)) \
$(PYTHON3_HOST_BUILD_ARGS) \
"$(PYTHON3_HOST_BUILD_DIR)" \
, \
$(PYTHON3_HOST_BUILD_VARS) \
)
endef
define Py3Host/Install/Installer
$(call HostPython3/Run, \
$(HOST_BUILD_DIR), \
-m installer \
--destdir "$(1)" \
--prefix "" \
"$(PYTHON3_HOST_BUILD_DIR)"/openwrt-build/$(PYTHON3_HOST_WHEEL_NAME)-$(PYTHON3_HOST_WHEEL_VERSION)-*.whl \
, \
$(PYTHON3_HOST_INSTALL_VARS) \
)
endef
define Py3Host/Install
rm -rf "$(PYTHON3_HOST_STAGING_DIR)"
mkdir -p "$(PYTHON3_HOST_STAGING_DIR)" "$(PYTHON3_HOST_STAGING_FILES_LIST_DIR)"
$(call Py3Host/Install/Installer,$(PYTHON3_HOST_STAGING_DIR))
$(call Py3Host/Uninstall,$(1))
cd "$(PYTHON3_HOST_STAGING_DIR)" && find ./ > "$(PYTHON3_HOST_STAGING_DIR).files"
$(call locked, \
mv "$(PYTHON3_HOST_STAGING_DIR).files" "$(PYTHON3_HOST_STAGING_FILES_LIST)" && \
$(CP) "$(PYTHON3_HOST_STAGING_DIR)"/* "$(1)/", \
host-staging-dir \
)
rm -rf "$(PYTHON3_HOST_STAGING_DIR)"
endef
define Py3Host/Uninstall
if [ -f "$(PYTHON3_HOST_STAGING_FILES_LIST)" ]; then \
"$(SCRIPT_DIR)/clean-package.sh" \
"$(PYTHON3_HOST_STAGING_FILES_LIST)" \
"$(1)" ; \
rm -f "$(PYTHON3_HOST_STAGING_FILES_LIST)" ; \
fi
endef
ifeq ($(strip $(PYTHON3_HOST_BUILD)),1)
Host/Compile=$(Py3Host/Compile)
Host/Install=$(Py3Host/Install)
Host/Uninstall=$(call Py3Host/Uninstall,$(HOST_BUILD_PREFIX))
endif