pyproject.mk: always use build/installer fake bootstrap for Python 3.7

Marcel Telka

2022-11-10 de61f6f178be8005f9d74746ced4f403b7336976

pyproject.mk: always use build/installer fake bootstrap for Python 3.7

 make-rules/pyproject.mk

@@ -58,39 +58,30 @@
PYTHON_ENV += PYTHONPATH=$(@D)/src
endif

# Since pyproject_installer requires Python >= 3.8 we need to defer to default
# setup.py build style for Python 3.7, so we will use pyproject_installer for
# Python 3.9 only.  Once we obsolete Python 3.7 we should set
# COMPONENT_BUILD_CMD, COMPONENT_BUILD_ARGS, COMPONENT_INSTALL_CMD, and
# COMPONENT_INSTALL_ARGS unconditionally below and replace $(PYTHON.3.9) by
# $(PYTHON).
$(BUILD_DIR)/%-3.9/.built:    COMPONENT_BUILD_CMD =        $(PYTHON.3.9) -m pyproject_installer build
# Since pyproject_installer requires Python >= 3.8 we will use it for Python
# 3.9 only.  Once we obsolete Python 3.7 we should set COMPONENT_BUILD_CMD,
# COMPONENT_BUILD_ARGS, COMPONENT_INSTALL_CMD, and COMPONENT_INSTALL_ARGS
# unconditionally below.
$(BUILD_DIR)/%-3.9/.built:    COMPONENT_BUILD_CMD =        $(PYTHON) -m pyproject_installer build
$(BUILD_DIR)/%-3.9/.built:    COMPONENT_BUILD_ARGS =

$(BUILD_DIR)/%-3.9/.installed:    COMPONENT_INSTALL_CMD =        $(PYTHON.3.9) -m pyproject_installer install
$(BUILD_DIR)/%-3.9/.installed:    COMPONENT_INSTALL_CMD =        $(PYTHON) -m pyproject_installer install
$(BUILD_DIR)/%-3.9/.installed:    COMPONENT_INSTALL_ARGS =
$(BUILD_DIR)/%-3.9/.installed:    COMPONENT_INSTALL_ARGS +=    --destdir $(PROTO_DIR)

# pyproject_installer does not bytecompile after the install.  Since we need
# pyc files we need to force that.
#
# Since pyproject_installer requires Python >= 3.8 we need to defer to default
# setup.py build style for Python 3.7, and so we do not need to compile for
# Python 3.7.  Once we obsolete Python 3.7 we should set
# Since pyproject_installer requires Python >= 3.8 we do need to compile for
# Python 3.9 only.  Once we obsolete Python 3.7 we should set
# COMPONENT_POST_INSTALL_ACTION unconditionally below.
$(BUILD_DIR)/%-3.9/.installed:    COMPONENT_POST_INSTALL_ACTION +=    $(PYTHON) -m compileall $(PROTO_DIR)/$(PYTHON_LIB) ;

# Special transforms needed only until we drop support for Python 3.7
BOOTSTRAP_TRANSFORMS =    $(WS_TOP)/transforms/python-bootstrap
PUBLISH_TRANSFORMS +=    $(BOOTSTRAP_TRANSFORMS)

ifeq ($(wildcard $(SOURCE_DIR)/setup.py),)
# If the component does not support setup.py build style we cannot defer to it
# for bootstrapping Python 3.7.  We will use 'build' and 'installer' instead.
# Strictly speaking this is not true bootstrap, but since we do not need to
# bootstrap Python 3.7 from scratch we can afford this fake bootstrap keeping
# in mind that Python 3.7 should be EOLed in June 2023.

# Since pyproject_installer requires Python >= 3.8 we cannot use it to
# bootstrap Python 3.7.  We will use 'build' and 'installer' instead.  Strictly
# speaking this is not true bootstrap, but since we do not need to bootstrap
# Python 3.7 from scratch we can afford this fake bootstrap keeping in mind
# that Python 3.7 should be EOLed in June 2023.
$(BUILD_DIR)/%-3.7/.built:    COMPONENT_BUILD_CMD =        $(PYTHON) -m build
$(BUILD_DIR)/%-3.7/.built:    COMPONENT_BUILD_ARGS =
$(BUILD_DIR)/%-3.7/.built:    COMPONENT_BUILD_ARGS +=        --wheel
@@ -104,9 +95,6 @@
USERLAND_REQUIRED_PACKAGES += library/python/build-37
USERLAND_REQUIRED_PACKAGES += library/python/installer-37

# We do not need special transforms for fake bootstrap
BOOTSTRAP_TRANSFORMS =

# Remove all files from dist-info directory except METADATA to get similar
# layout as with pyproject_installer
$(BUILD_DIR)/%-3.7/.installed:    COMPONENT_POST_INSTALL_ACTION += \
@@ -116,7 +104,6 @@
        [[ -f "$$f" ]] || continue ; \
        $(RM) $$f ; \
    done ) ;
endif
else
COMPONENT_BUILD_CMD =        $(PYTHON) -m build
COMPONENT_BUILD_ARGS =

 transforms/python-bootstrap

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