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#
# LUFA Library
# Copyright (C) Dean Camera, 2015.
#
# dean [at] fourwalledcubicle [dot] com
# www.lufa-lib.org
#
LUFA_BUILD_MODULES += DOXYGEN
LUFA_BUILD_TARGETS += doxygen doxygen_upgrade doxygen_create
LUFA_BUILD_MANDATORY_VARS += LUFA_PATH
LUFA_BUILD_OPTIONAL_VARS += DOXYGEN_CONF DOXYGEN_FAIL_ON_WARNING DOXYGEN_OVERRIDE_PARAMS
LUFA_BUILD_PROVIDED_VARS +=
LUFA_BUILD_PROVIDED_MACROS +=
# -----------------------------------------------------------------------------
# LUFA Doxygen Buildsystem Makefile Module.
# -----------------------------------------------------------------------------
# DESCRIPTION:
# Provides a set of targets to automatically build Doxygen documentation for
# a project (see www.doxygen.org).
# -----------------------------------------------------------------------------
# TARGETS:
#
# doxygen - Build Doxygen Documentation
# doxygen_create - Create a new Doxygen configuration file using
# the latest template
# doxygen_upgrade - Upgrade an existing Doxygen configuration file
# to the latest template
#
# MANDATORY PARAMETERS:
#
# LUFA_PATH - Path to the LUFA library core
#
# OPTIONAL PARAMETERS:
#
# DOXYGEN_CONF - Doxygen configuration filename
# DOXYGEN_FAIL_ON_WARNING - Set to Y to fail the build on Doxygen warnings,
# N to continue even if warnings occur
# DOXYGEN_OVERRIDE_PARAMS - Parameters to override in the doxygen
# configuration file
# PROVIDED VARIABLES:
#
# (None)
#
# PROVIDED MACROS:
#
# (None)
#
# -----------------------------------------------------------------------------
SHELL = /bin/sh
ERROR_IF_UNSET ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set))
ERROR_IF_EMPTY ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank))
ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N))
# Default values of optionally user-supplied variables
DOXYGEN_CONF ?= doxyfile
DOXYGEN_FAIL_ON_WARNING ?= Y
DOXYGEN_OVERRIDE_PARAMS ?= QUIET=YES HTML_EXTRA_STYLESHEET=$(patsubst %/,%,$(LUFA_PATH))/DoxygenPages/Style/Style.css
# Sanity check user supplied values
$(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR)))
$(call ERROR_IF_EMPTY, DOXYGEN_CONF)
$(call ERROR_IF_EMPTY, LUFA_PATH)
$(call ERROR_IF_NONBOOL, DOXYGEN_FAIL_ON_WARNING)
# Output Messages
MSG_DOXYGEN_CMD := ' [DOXYGEN] :'
# Determine Doxygen invocation command
BASE_DOXYGEN_CMD := ( cat $(DOXYGEN_CONF) $(DOXYGEN_OVERRIDE_PARAMS:%=; echo "%") ) | doxygen -
ifeq ($(DOXYGEN_FAIL_ON_WARNING), Y)
DOXYGEN_CMD := if ( $(BASE_DOXYGEN_CMD) 2>&1 | grep -v -e "[Ww]arning:\|recompile doxygen" ;); then exit 1; fi;
else
DOXYGEN_CMD := $(BASE_DOXYGEN_CMD)
endif
# Error if the specified Doxygen configuration file does not exist
$(DOXYGEN_CONF):
$(error Doxygen configuration file $@ does not exist)
# Builds the project documentation using the specified configuration file and the DOXYGEN tool
doxygen: $(DOXYGEN_CONF) $(MAKEFILE_LIST)
@echo $(MSG_DOXYGEN_CMD) Configuration file \"$(DOXYGEN_CONF)\" with parameters \"$(DOXYGEN_OVERRIDE_PARAMS)\"
$(DOXYGEN_CMD)
# Upgrades an existing Doxygen configuration file to the latest Doxygen template, preserving settings
doxygen_upgrade: $(DOXYGEN_CONF) $(MAKEFILE_LIST)
@echo $(MSG_DOXYGEN_CMD) Upgrading configuration file \"$(DOXYGEN_CONF)\" with latest template
doxygen -u $(DOXYGEN_CONF) > /dev/null
# Creates a new Doxygen configuration file with the set file name
doxygen_create: $(MAKEFILE_LIST)
@echo $(MSG_DOXYGEN_CMD) Creating new configuration file \"$(DOXYGEN_CONF)\" with latest template
doxygen -g $(DOXYGEN_CONF) > /dev/null
# Phony build targets for this module
.PHONY: doxygen doxygen_upgrade doxygen_create
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