#
# Copyright (C) 2007 OpenWrt.org
#
# Copyright (C) 2013 freetz.org
#

PYTHON_STAGING_DIR:=$(TARGET_TOOLCHAIN_STAGING_DIR)/usr
PYTHON_STAGING_BIN_DIR:=$(PYTHON_STAGING_DIR)/bin
PYTHON_STAGING_INC_DIR:=$(PYTHON_STAGING_DIR)/include/python$(PYTHON_MAJOR_VERSION)
PYTHON_STAGING_LIB_DIR:=$(PYTHON_STAGING_DIR)/lib/python$(PYTHON_MAJOR_VERSION)

PYTHON_SITE_PKG_DIR:=/usr/lib/python$(PYTHON_MAJOR_VERSION)/site-packages

PYTHON:=python$(PYTHON_MAJOR_VERSION)

HOST_PYTHON_BIN:=$(TARGET_TOOLCHAIN_STAGING_DIR)/usr/bin/hostpython

# $(1) => statements to be executed before calling host-python
# $(2) => parameters to be passed to host-python
define HostPython
	( \
		export PYTHONPATH="$(PYTHON_STAGING_LIB_DIR):$(TARGET_TOOLCHAIN_STAGING_DIR)/$(PYTHON_SITE_PKG_DIR)"; \
		export PYTHONOPTIMIZE=""; \
		export PYTHONDONTWRITEBYTECODE=1; \
		$(1) \
		$(HOST_PYTHON_BIN) $(2); \
	)
endef

# $(1) => build dir
# $(2) => additional arguments to setup.py
# $(3) => additional variables
# $(4) => dir to look for .so files to be stripped
define Build/PyMod/Generic
	$(call HostPython, \
		cd $(strip $(1)); \
		$(TARGET_CONFIGURE_ENV) \
		$(FREETZ_LD_RUN_PATH) \
		$(3) \
		, \
		./setup.py $(2) \
	)
	$(if $(strip $(4)),find $(strip $(4)) -type f -name "*.so" -exec $(TARGET_STRIP) \{\} \+)
endef

# $(1) => PKG value
# $(2) => additional arguments to setup.py
# $(3) => additional variables
define Build/PyMod/PKG
	$(call Build/PyMod/Generic, \
		$($(strip $(1))_DIR), \
		install --prefix=/usr --root=$(abspath $($(strip $(1))_DEST_DIR)) \
		$(2), \
		$(3), \
		$($(strip $(1))_DEST_DIR)$(PYTHON_SITE_PKG_DIR) \
	)
endef