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buildroot/package/pkg-python.mk
Yann E. MORIN 720a1708cd package/pkg-python: use post-process opts to pass Cargo manifest path 
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
2024-07-14 10:24:39 +02:00

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################################################################################
# Python package infrastructure
#
# This file implements an infrastructure that eases development of
# package .mk files for Python packages. It should be used for all
# packages that use Python setup.py/setuptools as their build system.
#
# See the Buildroot documentation for details on the usage of this
# infrastructure
#
# In terms of implementation, this Python infrastructure requires the
# .mk file to only specify metadata information about the package:
# name, version, download URL, etc.
#
# We still allow the package .mk file to override what the different
# steps are doing, if needed. For example, if <PKG>_BUILD_CMDS is
# already defined, it is used as the list of commands to perform to
# build the package, instead of the default Python behaviour. The
# package can also define some post operation hooks.
#
################################################################################
ifeq ($(BR2_arm)$(BR2_armeb),y)
PKG_PYTHON_ARCH = arm
else
PKG_PYTHON_ARCH = $(ARCH)
endif
PKG_PYTHON_HOST_PLATFORM = linux-$(PKG_PYTHON_ARCH)
# basename does not evaluate if a file exists, so we must check to ensure
# the _sysconfigdata__linux_*.py file exists. The "|| true" is added to return
# an empty string if the file does not exist.
PKG_PYTHON_SYSCONFIGDATA_PATH = $(PYTHON3_PATH)/_sysconfigdata__linux_*.py
PKG_PYTHON_SYSCONFIGDATA_NAME = `{ [ -e $(PKG_PYTHON_SYSCONFIGDATA_PATH) ] && basename $(PKG_PYTHON_SYSCONFIGDATA_PATH) .py; } || true`
# Target python packages
PKG_PYTHON_ENV = \
_PYTHON_HOST_PLATFORM="$(PKG_PYTHON_HOST_PLATFORM)" \
_PYTHON_PROJECT_BASE="$(PYTHON3_DIR)" \
_PYTHON_SYSCONFIGDATA_NAME="$(PKG_PYTHON_SYSCONFIGDATA_NAME)" \
PATH=$(BR_PATH) \
$(TARGET_CONFIGURE_OPTS) \
PYTHONPATH="$(PYTHON3_PATH)" \
PYTHONNOUSERSITE=1
# Host python packages
HOST_PKG_PYTHON_ENV = \
PATH=$(BR_PATH) \
PYTHONNOUSERSITE=1 \
$(HOST_CONFIGURE_OPTS)
# Target pep517-based packages
PKG_PYTHON_PEP517_ENV = \
$(PKG_PYTHON_ENV)
PKG_PYTHON_PEP517_BUILD_CMD = \
-m build -n -w
PKG_PYTHON_PEP517_INSTALL_OPTS = \
--interpreter=/usr/bin/python \
--script-kind=posix
PKG_PYTHON_PEP517_INSTALL_TARGET_CMD = \
$(TOPDIR)/support/scripts/pyinstaller.py \
dist/* \
$(PKG_PYTHON_PEP517_INSTALL_OPTS) \
--purelib=$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages \
--headers=$(TARGET_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR) \
--scripts=$(TARGET_DIR)/usr/bin \
--data=$(TARGET_DIR)
PKG_PYTHON_PEP517_INSTALL_STAGING_CMD = \
$(TOPDIR)/support/scripts/pyinstaller.py \
dist/* \
$(PKG_PYTHON_PEP517_INSTALL_OPTS) \
--purelib=$(STAGING_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages \
--headers=$(STAGING_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR) \
--scripts=$(STAGING_DIR)/usr/bin \
--data=$(STAGING_DIR)
PKG_PYTHON_PEP517_DEPENDENCIES = \
host-python-pypa-build \
host-python-installer
# Host pep517-based packages
HOST_PKG_PYTHON_PEP517_ENV = \
$(HOST_PKG_PYTHON_ENV)
HOST_PKG_PYTHON_PEP517_BUILD_CMD = \
-m build -n -w
HOST_PKG_PYTHON_PEP517_INSTALL_CMD = \
$(TOPDIR)/support/scripts/pyinstaller.py \
dist/* \
--interpreter=$(HOST_DIR)/bin/python \
--script-kind=posix \
--purelib=$(HOST_DIR)/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages \
--headers=$(HOST_DIR)/include/python$(PYTHON3_VERSION_MAJOR) \
--scripts=$(HOST_DIR)/bin \
--data=$(HOST_DIR)
# Target setuptools-based packages
PKG_PYTHON_SETUPTOOLS_ENV = \
$(PKG_PYTHON_PEP517_ENV)
PKG_PYTHON_SETUPTOOLS_BUILD_CMD = \
$(PKG_PYTHON_PEP517_BUILD_CMD)
PKG_PYTHON_SETUPTOOLS_INSTALL_OPTS = \
--install-headers=/usr/include/python$(PYTHON3_VERSION_MAJOR) \
--prefix=/usr \
--executable=/usr/bin/python \
--single-version-externally-managed
PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_TARGET_CMD)
PKG_PYTHON_SETUPTOOLS_INSTALL_STAGING_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_STAGING_CMD)
PKG_PYTHON_SETUPTOOLS_DEPENDENCIES = \
$(PKG_PYTHON_PEP517_DEPENDENCIES) \
host-python-setuptools
# Host setuptools-based packages
HOST_PKG_PYTHON_SETUPTOOLS_ENV = \
$(HOST_PKG_PYTHON_PEP517_ENV)
HOST_PKG_PYTHON_SETUPTOOLS_BUILD_CMD = \
$(HOST_PKG_PYTHON_PEP517_BUILD_CMD)
HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_CMD = \
$(HOST_PKG_PYTHON_PEP517_INSTALL_CMD)
# Target setuptools-rust-based packages
PKG_PYTHON_SETUPTOOLS_RUST_ENV = \
$(PKG_PYTHON_SETUPTOOLS_ENV) \
$(PKG_CARGO_ENV) \
PYO3_CROSS_LIB_DIR="$(STAGING_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)"
PKG_PYTHON_SETUPTOOLS_RUST_BUILD_CMD = \
$(PKG_PYTHON_SETUPTOOLS_BUILD_CMD)
PKG_PYTHON_SETUPTOOLS_RUST_INSTALL_TARGET_CMD = \
$(PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_CMD)
PKG_PYTHON_SETUPTOOLS_RUST_INSTALL_STAGING_CMD = \
$(PKG_PYTHON_SETUPTOOLS_INSTALL_STAGING_CMD)
PKG_PYTHON_SETUPTOOLS_RUST_DEPENDENCIES = \
$(PKG_PYTHON_SETUPTOOLS_DEPENDENCIES) \
host-python-setuptools-rust
# Host setuptools-rust-based packages
HOST_PKG_PYTHON_SETUPTOOLS_RUST_ENV = \
$(HOST_PKG_PYTHON_SETUPTOOLS_ENV) \
$(HOST_PKG_CARGO_ENV) \
PYO3_CROSS_LIB_DIR="$(HOST_DIR)/lib/python$(PYTHON3_VERSION_MAJOR)"
HOST_PKG_PYTHON_SETUPTOOLS_RUST_BUILD_CMD = \
$(HOST_PKG_PYTHON_SETUPTOOLS_BUILD_CMD)
HOST_PKG_PYTHON_SETUPTOOLS_RUST_INSTALL_CMD = \
$(HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_CMD)
# Target flit packages
PKG_PYTHON_FLIT_ENV = \
$(PKG_PYTHON_PEP517_ENV)
PKG_PYTHON_FLIT_BUILD_CMD = \
$(PKG_PYTHON_PEP517_BUILD_CMD)
PKG_PYTHON_FLIT_INSTALL_TARGET_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_TARGET_CMD)
PKG_PYTHON_FLIT_INSTALL_STAGING_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_STAGING_CMD)
PKG_PYTHON_FLIT_DEPENDENCIES = \
$(PKG_PYTHON_PEP517_DEPENDENCIES) \
host-python-flit-core
# Host flit packages
HOST_PKG_PYTHON_FLIT_ENV = \
$(HOST_PKG_PYTHON_PEP517_ENV)
HOST_PKG_PYTHON_FLIT_BUILD_CMD = \
$(HOST_PKG_PYTHON_PEP517_BUILD_CMD)
HOST_PKG_PYTHON_FLIT_INSTALL_CMD = \
$(HOST_PKG_PYTHON_PEP517_INSTALL_CMD)
# Host flit-bootstrap packages
HOST_PKG_PYTHON_FLIT_BOOTSTRAP_ENV = \
$(HOST_PKG_PYTHON_PEP517_ENV)
HOST_PKG_PYTHON_FLIT_BOOTSTRAP_BUILD_CMD = \
-m flit_core.wheel
HOST_PKG_PYTHON_FLIT_BOOTSTRAP_INSTALL_CMD = \
$(HOST_PKG_PYTHON_PEP517_INSTALL_CMD)
# Target maturin packages
PKG_PYTHON_MATURIN_ENV = \
$(PKG_PYTHON_PEP517_ENV) \
$(PKG_CARGO_ENV) \
PYO3_CROSS_LIB_DIR="$(STAGING_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)"
PKG_PYTHON_MATURIN_BUILD_CMD = \
$(PKG_PYTHON_PEP517_BUILD_CMD)
PKG_PYTHON_MATURIN_INSTALL_TARGET_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_TARGET_CMD)
PKG_PYTHON_MATURIN_INSTALL_STAGING_CMD = \
$(PKG_PYTHON_PEP517_INSTALL_STAGING_CMD)
PKG_PYTHON_MATURIN_DEPENDENCIES = \
$(PKG_PYTHON_PEP517_DEPENDENCIES) \
host-python-maturin
# Host maturin packages
HOST_PKG_PYTHON_MATURIN_ENV = \
$(HOST_PKG_PYTHON_PEP517_ENV) \
$(HOST_PKG_CARGO_ENV) \
PYO3_CROSS_LIB_DIR="$(HOST_DIR)/lib/python$(PYTHON3_VERSION_MAJOR)"
HOST_PKG_PYTHON_MATURIN_BUILD_CMD = \
$(HOST_PKG_PYTHON_PEP517_BUILD_CMD)
HOST_PKG_PYTHON_MATURIN_INSTALL_CMD = \
$(HOST_PKG_PYTHON_PEP517_INSTALL_CMD)
################################################################################
# inner-python-package -- defines how the configuration, compilation
# and installation of a Python package should be done, implements a
# few hooks to tune the build process and calls the generic package
# infrastructure to generate the necessary make targets
#
# argument 1 is the lowercase package name
# argument 2 is the uppercase package name, including a HOST_ prefix
# for host packages
# argument 3 is the uppercase package name, without the HOST_ prefix
# for host packages
# argument 4 is the type (target or host)
################################################################################
define inner-python-package
ifndef $(2)_SETUP_TYPE
ifdef $(3)_SETUP_TYPE
$(2)_SETUP_TYPE = $$($(3)_SETUP_TYPE)
else
$$(error "$(2)_SETUP_TYPE must be set")
endif
endif
$(2)_SETUP_TYPE_UPPER = $$(call UPPERCASE,$$($(2)_SETUP_TYPE))
ifneq ($$(filter-out setuptools setuptools-rust pep517 flit flit-bootstrap maturin,$$($(2)_SETUP_TYPE)),)
$$(error "Invalid $(2)_SETUP_TYPE. Valid options are 'maturin', 'setuptools', 'setuptools-rust', 'pep517' or 'flit'.")
endif
ifeq ($(4)-$$($(2)_SETUP_TYPE),target-flit-bootstrap)
$$(error flit-bootstrap setup type only supported for host packages)
endif
# We need to vendor the Cargo crates at download time for pyo3 based
# packages.
#
ifneq ($$(filter maturin setuptools-rust,$$($(2)_SETUP_TYPE)),)
ifeq ($(4),target)
$(2)_DL_ENV = $$(PKG_CARGO_ENV)
else
$(2)_DL_ENV = $$(HOST_PKG_CARGO_ENV)
endif
ifndef $(2)_CARGO_MANIFEST_PATH
ifdef $(3)_CARGO_MANIFEST_PATH
$(2)_DOWNLOAD_POST_PROCESS_OPTS += -m$$($(3)_CARGO_MANIFEST_PATH)
else
ifneq ($$($(2)_SUBDIR),)
$(2)_DOWNLOAD_POST_PROCESS_OPTS += -m$$($(2)_SUBDIR)/Cargo.toml
endif
endif
else
$(2)_DOWNLOAD_POST_PROCESS_OPTS += -m$$($(2)_CARGO_MANIFEST_PATH)
endif
endif
# Target packages need both the python interpreter on the target (for
# runtime) and the python interpreter on the host (for
# compilation). However, host packages only need the python
# interpreter on the host.
#
ifeq ($(4),target)
$(2)_DEPENDENCIES += host-python3 python3
else
$(2)_DEPENDENCIES += host-python3
endif # ($(4),target)
# Setup type specific dependencies are the same whether we are
# building for the host or the target.
#
ifeq ($$($(2)_SETUP_TYPE),flit-bootstrap)
# Don't add dependency on host-python-installer for
# host-python-installer itself, and its dependencies.
ifeq ($$(filter host-python-flit-core host-python-installer,$(1)),)
$(2)_DEPENDENCIES += host-python-installer
endif
else
$(2)_DEPENDENCIES += $$(PKG_PYTHON_$$($(2)_SETUP_TYPE_UPPER)_DEPENDENCIES)
endif
# Pyo3 based packages(setuptools-rust and maturin) will need rust
# toolchain dependencies for the host Python interpreter (both host
# and target).
#
ifneq ($$(filter maturin setuptools-rust,$$($(2)_SETUP_TYPE)),)
$(2)_DEPENDENCIES += host-rustc
$(2)_DOWNLOAD_POST_PROCESS = cargo
$(2)_DOWNLOAD_DEPENDENCIES = host-rustc
endif # SETUP_TYPE
ifeq ($(4),target)
#
# Build step. Only define it if not already defined by the package .mk
# file.
#
ifndef $(2)_BUILD_CMDS
define $(2)_BUILD_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_ENV) \
$$($$(PKG)_ENV) \
$$(HOST_DIR)/bin/python3 \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_BUILD_CMD) \
$$($$(PKG)_BUILD_OPTS))
endef
endif
#
# Target installation step. Only define it if not already defined by
# the package .mk file.
#
ifndef $(2)_INSTALL_TARGET_CMDS
define $(2)_INSTALL_TARGET_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_ENV) \
$$($$(PKG)_ENV) \
$$(HOST_DIR)/bin/python3 \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_INSTALL_TARGET_CMD) \
$$($$(PKG)_INSTALL_TARGET_OPTS))
endef
endif
#
# Staging installation step. Only define it if not already defined by
# the package .mk file.
#
ifndef $(2)_INSTALL_STAGING_CMDS
define $(2)_INSTALL_STAGING_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_ENV) \
$$($$(PKG)_ENV) \
$$(HOST_DIR)/bin/python3 \
$$(PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_INSTALL_STAGING_CMD) \
$$($$(PKG)_INSTALL_STAGING_OPTS))
endef
endif
else # host
#
# Host build step. Only define it if not already defined by the package .mk
# file.
#
ifndef $(2)_BUILD_CMDS
define $(2)_BUILD_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$(HOST_PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_ENV) \
$$($$(PKG)_ENV) \
$$(HOST_DIR)/bin/python3 \
$$(HOST_PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_BUILD_CMD) \
$$($$(PKG)_BUILD_OPTS))
endef
endif
#
# Host installation step. Only define it if not already defined by the
# package .mk file.
#
ifndef $(2)_INSTALL_CMDS
define $(2)_INSTALL_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$(HOST_PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_ENV) \
$$($$(PKG)_ENV) \
$$(HOST_DIR)/bin/python3 \
$$(HOST_PKG_PYTHON_$$($$(PKG)_SETUP_TYPE_UPPER)_INSTALL_CMD) \
$$($$(PKG)_INSTALL_OPTS))
endef
endif
endif # host / target
# Call the generic package infrastructure to generate the necessary
# make targets
$(call inner-generic-package,$(1),$(2),$(3),$(4))
endef
################################################################################
# python-package -- the target generator macro for Python packages
################################################################################
python-package = $(call inner-python-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
host-python-package = $(call inner-python-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
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