doxygen/Makefile - fdio/vpp - Gitiles

 # Copyright (c) 2016 Comcast Cable Communications Management, LLC.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.

 #
 # Build the documentation
 #

 # Default target
 .PHONY: all
 all: doxygen

 # These should be passed in by the root Makefile
 WS_ROOT ?= $(CURDIR)/..
 BR ?= $(WS_ROOT)/build-root

 # We support MacOS for docs generation
 ifeq ($(shell uname),Darwin)
 OS_ID = darwin
 endif

 # Work out the OS if we haven't already
 OS_ID ?= $(shell grep '^ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')

 # Package dependencies
 DOC_DEB_DEPENDS = doxygen graphviz python-pyparsing python-jinja2
 DOC_RPM_DEPENDS = doxygen graphviz pyparsing python-jinja2
 DOC_MAC_BIN_DEPENDS = doxygen dot git
 DOC_MAC_PY_DEPENDS = pyparsing jinja2

 # Doxygen configuration and our utility scripts
 DOXY_DIR ?= $(WS_ROOT)/doxygen

 # Primary source directories
 DOXY_SRC ?= src
 DOXY_SRC_DIRECTORIES = \
 	$(DOXY_SRC)/vppinfra \
 	$(DOXY_SRC)/svm \
 	$(DOXY_SRC)/vlib \
 	$(DOXY_SRC)/vlibapi \
 	$(DOXY_SRC)/vlibmemory \
 	$(DOXY_SRC)/vlibsocket \
 	$(DOXY_SRC)/vnet \
 	$(DOXY_SRC)/vpp \
 	$(DOXY_SRC)/vpp-api

 # Input directories and files
 DOXY_INPUT ?= \
 	$(wildcard $(WS_ROOT)/*.md) \
 	$(wildcard $(DOXY_DIR)/*.md) \
 	$(DOXY_SRC_DIRECTORIES) \
 	$(DOXY_SRC)/plugins \
 	plugins

 # Strip leading workspace path from input names
 DOXY_INPUT := $(subst $(WS_ROOT)/,,$(DOXY_INPUT))

 # Files to exclude, from pre-Doxygen steps, eg because they're
 # selectively compiled.
 # Examples would be to exclude non-DPDK related sources when
 # there's a DPDK equivalent that conflicts.
 # These must be left-anchored paths for the regexp below to work.
 DOXY_EXCLUDE ?= \
 	$(DOXY_SRC)/vlib/vlib/buffer.c \
 	$(DOXY_SRC)/vlib/example \
 	$(DOXY_SRC)/vpp-api/lua \
 	plugins/sample-plugin

 # Generate a regexp for filenames to exclude
 DOXY_EXCLUDE_REGEXP = ($(subst .,\.,$(shell echo '$(strip $(DOXY_EXCLUDE))' | sed -e 's/ /|/g')))

 # Include all the normal source directories in the include file path
 DOXY_INCLUDE_PATH = $(DOXY_SRC_DIRECTORIES)

 # Also include any plugin directories that exist
 DOXY_INCLUDE_PATH += \
 	$(shell find $(WS_ROOT)/plugins -maxdepth 1 -type d | sed -e 's@^$(WS_ROOT)/*@@')

 # Find API header directories and include them in the header path.
 # This is only useful if VPP and plugins are already built; nothing
 # here depends on those targets. We don't build documentation for these
 # header files, they're just added to the INCLUDE search path for Doxygen.
 _vpp_br = $(shell find "$(BR)" -maxdepth 1 -type d \
 	'(' -name build-vpp_debug-native -o -name build-vpp-native ')' -print \
 	| sed -e 's@^$(WS_ROOT)/*@@' -e 1q)
 ifneq ($(strip $(_vpp_br)),)
 DOXY_INCLUDE_PATH += \
 	$(_vpp_br)/vlib-api \
 	$(_vpp_br)/vpp
 # Also include any plugin directories that exist
 DOXY_INCLUDE_PATH += \
 	$(shell find $(WS_ROOT)/$(_vpp_br)/plugins -maxdepth 1 -type d | sed -e 's@^$(WS_ROOT)/*@@')
 endif

 # Discover if we have CPP available
 _cpp = $(shell which cpp)
 ifneq ($(strip $(_cpp)),)
 # Add whatever directories CPP normally includes to the header path
 DOXY_INCLUDE_PATH += $(shell set -e; $(_cpp) -v </dev/null 2>&1 | awk 'f&&/^ /{print $$1} /^\#include/{f=1}')
 endif

 # Target directory for doxygen output
 DOXY_OUTPUT ?= $(BR)/docs

 # Siphoned fragments end up in here
 SIPHON_INPUT ?= $(DOXY_OUTPUT)/siphon_fragments

 # Siphoned fragements are processed into here
 SIPHON_OUTPUT ?= $(DOXY_OUTPUT)/siphon_docs

 # Extra document inputs that are processed in addition to DOXY_INPUT
 EXTRA_DOXY_INPUT += $(SIPHON_OUTPUT)

 # All the siphon types we know about
 SIPHONS ?= clicmd syscfg

 SIPHON_FILES = $(addprefix $(SIPHON_INPUT)/,$(addsuffix .siphon,$(SIPHONS)))
 SIPHON_DOCS = $(addprefix $(SIPHON_OUTPUT)/,$(addsuffix .md,$(SIPHONS)))
 SIPHON_ITEMLIST = $(addprefix $(SIPHON_OUTPUT)/,$(addsuffix .itemlist,$(filter clicmd,$(SIPHONS))))

 $(BR)/.doxygen-bootstrap.ok: Makefile
 	@echo "Checking whether dependencies for Doxygen are installed..."
 ifeq ($(OS_ID),ubuntu)
 	@set -e; inst=; \
 		for i in $(DOC_DEB_DEPENDS); do \
 			dpkg-query --show $$i >/dev/null 2>&1 || inst="$$inst $$i"; \
 		done; \
 		if [ "$$inst" ]; then \
 			sudo apt-get update; \
 			sudo apt-get $(CONFIRM) $(FORCE) install $$inst; \
 		fi
 	@if [ ! -s /usr/lib/graphviz/config6a ]; then \
 		echo "Rebuidlding system Graphviz configuration."; \
 		sudo dot -c; \
 	fi
 else ifneq ("$(wildcard /etc/redhat-release)","")
 	@sudo yum install $(CONFIRM) $(DOC_RPM_DEPENDS)
 else ifeq ($(OS_ID),darwin)
 	@set -e; \
 	for bin in $(DOC_MAC_BIN_DEPENDS); do \
 		which -s $${bin} || (\
 			echo "Program '$${bin}' not found, please install it."; \
 			false; \
 		); \
 	done
 	@set -e; \
 	for py in $(DOC_MAC_PY_DEPENDS); do \
 		python -c "import $${py}" >/dev/null 2>&1 || (\
 			echo "Python package '$${py}' not found, please install it."; \
 			false; \
 		); \
 	done
 else
 	$(error "Building documentation currently works only on Ubuntu, CentOS or MacOS systems.")
 endif
 	@touch $@

 .PHONY: bootstrap-doxygen
 bootstrap-doxygen: $(BR)/.doxygen-bootstrap.ok

 .DELETE_ON_ERROR: $(BR)/.doxygen-siphon.dep
 $(BR)/.doxygen-siphon.dep: Makefile \
 		$(addprefix,$(WSROOT),$(DOXY_INPUT))
 	@echo "Building siphon dependencies..."
 	@rm -f "$@"; for input in $(DOXY_INPUT); do \
 		[ -e "$(WS_ROOT)/$$input" ] && \
 		find "$(WS_ROOT)/$$input" -type f \
 			\( -name '*.[ch]' -or -name '*.dox' \) -print \
 			| grep -v -E '^$(WS_ROOT)/$(DOXY_EXCLUDE_REGEXP)' \
 			| sed -e "s/^/\$$(SIPHON_FILES): /" \
 			>> $@; \
 	done

 # Include the source -> siphon dependencies
 -include $(BR)/.doxygen-siphon.dep

 # Generate .siphon files that contain fragments of source file that
 # relate to the siphons we support.
 .NOTPARALLEL: $(SIPHON_FILES)
 $(SIPHON_FILES): $(BR)/.doxygen-bootstrap.ok \
 		$(DOXY_DIR)/siphon-generate \
 		$(addprefix,$(WSROOT),$(DOXY_INPUT)) \
 		$(wildcard $(DOXY_DIR)/siphon/*.py)
 	@echo "Validating source tree..."
 	@set -e; for input in $(DOXY_INPUT); do \
 		if [ ! -e "$(WS_ROOT)/$$input" ]; then \
 			echo "ERROR: Input path '$$input' does not exist." >&2; \
 			exit 1; \
 		fi; \
 	done
 	@rm -rf "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
 	@mkdir -p "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
 	@touch $(SIPHON_INPUT)/files
 	@echo "Collating source file list for siphoning..."
 	@for input in $(DOXY_INPUT); do \
 		cd "$(WS_ROOT)"; \
 		find "$$input" -type f \
 			\( -name '*.[ch]' -or -name '*.dox' \) -print \
 			| grep -v -E '^$(DOXY_EXCLUDE_REGEXP)' \
 			>> $(SIPHON_INPUT)/files; \
 	done
 	@echo "Generating siphons..."
 	@set -e; \
 	cd "$(WS_ROOT)"; \
 	$(DOXY_DIR)/siphon-generate \
 		--output="$(SIPHON_INPUT)" \
 		"@$(SIPHON_INPUT)/files"

 # Evaluate this to build a siphon doc output target for each desired
 # output type:
 # $(eval $(call siphon-process,file_extension,output_type_name))
 define siphon-process
 $(SIPHON_OUTPUT)/%.$(1): $(SIPHON_INPUT)/%.siphon \
 		$(DOXY_DIR)/siphon-process \
 		$(wildcard $(DOXY_DIR)/siphon/*.py) \
 		$(wildcard $(DOXY_DIR)/siphon_templates/$(2)/*/*.$(1))
 	@echo "Processing siphon for $(2) from $$(notdir $$<)..."
 	@set -e; \
 	cd "$(WS_ROOT)"; \
 	$(DOXY_DIR)/siphon-process \
 		--type=$$(basename $$(notdir $$<)) \
 		--format=$(2) \
 		--output="$$@" \
 		"$$<"
 endef

 # Process the .siphon source fragments and render them into doxygen flavored
 # markdown documentation
 .DELETE_ON_ERROR: $(SIPHON_DOCS)
 $(eval $(call siphon-process,md,markdown))

 # Process the .siphon source fragments and render them into a list of cli
 # commands.
 .DELETE_ON_ERROR: $(SIPHON_ITEMLIST)
 $(eval $(call siphon-process,itemlist,itemlist))

 # This target can be used just to generate the siphoned things
 .PHONY: doxygen-siphon
 doxygen-siphon: $(SIPHON_DOCS) $(SIPHON_ITEMLIST)

 # Generate the doxygen docs
 .PHONY: doxygen
 doxygen: $(SIPHON_DOCS)
 	@mkdir -p "$(DOXY_OUTPUT)"
 	@echo "Running Doxygen..."
 	set -e; cd "$(WS_ROOT)"; \
 	    ROOT="$(WS_ROOT)" \
 	    BUILD_ROOT="$(BR)" \
 	    INPUT="$(addprefix $(WS_ROOT)/,$(DOXY_INPUT)) $(EXTRA_DOXY_INPUT)" \
 	    INCLUDE_PATH="$(DOXY_INCLUDE_PATH)" \
 	    EXCLUDE="$(DOXY_EXCLUDE)" \
 	    HTML=YES \
 	    VERSION="`git describe --tags --dirty`" \
 	    doxygen $(DOXY_DIR)/doxygen.cfg

 .PHONY: wipe-doxygen
 wipe-doxygen:
 	rm -rf "$(BR)/docs" "$(BR)/.doxygen-siphon.d"

 .PHONY: clean
 clean: wipe-doxygen
	# Copyright (c) 2016 Comcast Cable Communications Management, LLC.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at:
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	#
	# Build the documentation
	#

	# Default target
	.PHONY: all
	all: doxygen

	# These should be passed in by the root Makefile
	WS_ROOT ?= $(CURDIR)/..
	BR ?= $(WS_ROOT)/build-root

	# We support MacOS for docs generation
	ifeq ($(shell uname),Darwin)
	OS_ID = darwin
	endif

	# Work out the OS if we haven't already
	OS_ID ?= $(shell grep '^ID=' /etc/os-release \| cut -f2- -d= \| sed -e 's/\"//g')

	# Package dependencies
	DOC_DEB_DEPENDS = doxygen graphviz python-pyparsing python-jinja2
	DOC_RPM_DEPENDS = doxygen graphviz pyparsing python-jinja2
	DOC_MAC_BIN_DEPENDS = doxygen dot git
	DOC_MAC_PY_DEPENDS = pyparsing jinja2

	# Doxygen configuration and our utility scripts
	DOXY_DIR ?= $(WS_ROOT)/doxygen

	# Primary source directories
	DOXY_SRC ?= src
	DOXY_SRC_DIRECTORIES = \
	$(DOXY_SRC)/vppinfra \
	$(DOXY_SRC)/svm \
	$(DOXY_SRC)/vlib \
	$(DOXY_SRC)/vlibapi \
	$(DOXY_SRC)/vlibmemory \
	$(DOXY_SRC)/vlibsocket \
	$(DOXY_SRC)/vnet \
	$(DOXY_SRC)/vpp \
	$(DOXY_SRC)/vpp-api

	# Input directories and files
	DOXY_INPUT ?= \
	$(wildcard $(WS_ROOT)/*.md) \
	$(wildcard $(DOXY_DIR)/*.md) \
	$(DOXY_SRC_DIRECTORIES) \
	$(DOXY_SRC)/plugins \
	plugins

	# Strip leading workspace path from input names
	DOXY_INPUT := $(subst $(WS_ROOT)/,,$(DOXY_INPUT))

	# Files to exclude, from pre-Doxygen steps, eg because they're
	# selectively compiled.
	# Examples would be to exclude non-DPDK related sources when
	# there's a DPDK equivalent that conflicts.
	# These must be left-anchored paths for the regexp below to work.
	DOXY_EXCLUDE ?= \
	$(DOXY_SRC)/vlib/vlib/buffer.c \
	$(DOXY_SRC)/vlib/example \
	$(DOXY_SRC)/vpp-api/lua \
	plugins/sample-plugin

	# Generate a regexp for filenames to exclude
	DOXY_EXCLUDE_REGEXP = ($(subst .,\.,$(shell echo '$(strip $(DOXY_EXCLUDE))' \| sed -e 's/ /\|/g')))

	# Include all the normal source directories in the include file path
	DOXY_INCLUDE_PATH = $(DOXY_SRC_DIRECTORIES)

	# Also include any plugin directories that exist
	DOXY_INCLUDE_PATH += \
	$(shell find $(WS_ROOT)/plugins -maxdepth 1 -type d \| sed -e 's@^$(WS_ROOT)/*@@')

	# Find API header directories and include them in the header path.
	# This is only useful if VPP and plugins are already built; nothing
	# here depends on those targets. We don't build documentation for these
	# header files, they're just added to the INCLUDE search path for Doxygen.
	_vpp_br = $(shell find "$(BR)" -maxdepth 1 -type d \
	'(' -name build-vpp_debug-native -o -name build-vpp-native ')' -print \
	\| sed -e 's@^$(WS_ROOT)/*@@' -e 1q)
	ifneq ($(strip $(_vpp_br)),)
	DOXY_INCLUDE_PATH += \
	$(_vpp_br)/vlib-api \
	$(_vpp_br)/vpp
	# Also include any plugin directories that exist
	DOXY_INCLUDE_PATH += \
	$(shell find $(WS_ROOT)/$(_vpp_br)/plugins -maxdepth 1 -type d \| sed -e 's@^$(WS_ROOT)/*@@')
	endif

	# Discover if we have CPP available
	_cpp = $(shell which cpp)
	ifneq ($(strip $(_cpp)),)
	# Add whatever directories CPP normally includes to the header path
	DOXY_INCLUDE_PATH += $(shell set -e; $(_cpp) -v </dev/null 2>&1 \| awk 'f&&/^ /{print $$1} /^\#include/{f=1}')
	endif

	# Target directory for doxygen output
	DOXY_OUTPUT ?= $(BR)/docs

	# Siphoned fragments end up in here
	SIPHON_INPUT ?= $(DOXY_OUTPUT)/siphon_fragments

	# Siphoned fragements are processed into here
	SIPHON_OUTPUT ?= $(DOXY_OUTPUT)/siphon_docs

	# Extra document inputs that are processed in addition to DOXY_INPUT
	EXTRA_DOXY_INPUT += $(SIPHON_OUTPUT)

	# All the siphon types we know about
	SIPHONS ?= clicmd syscfg

	SIPHON_FILES = $(addprefix $(SIPHON_INPUT)/,$(addsuffix .siphon,$(SIPHONS)))
	SIPHON_DOCS = $(addprefix $(SIPHON_OUTPUT)/,$(addsuffix .md,$(SIPHONS)))
	SIPHON_ITEMLIST = $(addprefix $(SIPHON_OUTPUT)/,$(addsuffix .itemlist,$(filter clicmd,$(SIPHONS))))

	$(BR)/.doxygen-bootstrap.ok: Makefile
	@echo "Checking whether dependencies for Doxygen are installed..."
	ifeq ($(OS_ID),ubuntu)
	@set -e; inst=; \
	for i in $(DOC_DEB_DEPENDS); do \
	dpkg-query --show $$i >/dev/null 2>&1 \|\| inst="$$inst $$i"; \
	done; \
	if [ "$$inst" ]; then \
	sudo apt-get update; \
	sudo apt-get $(CONFIRM) $(FORCE) install $$inst; \
	fi
	@if [ ! -s /usr/lib/graphviz/config6a ]; then \
	echo "Rebuidlding system Graphviz configuration."; \
	sudo dot -c; \
	fi
	else ifneq ("$(wildcard /etc/redhat-release)","")
	@sudo yum install $(CONFIRM) $(DOC_RPM_DEPENDS)
	else ifeq ($(OS_ID),darwin)
	@set -e; \
	for bin in $(DOC_MAC_BIN_DEPENDS); do \
	which -s $${bin} \|\| (\
	echo "Program '$${bin}' not found, please install it."; \
	false; \
	); \
	done
	@set -e; \
	for py in $(DOC_MAC_PY_DEPENDS); do \
	python -c "import $${py}" >/dev/null 2>&1 \|\| (\
	echo "Python package '$${py}' not found, please install it."; \
	false; \
	); \
	done
	else
	$(error "Building documentation currently works only on Ubuntu, CentOS or MacOS systems.")
	endif
	@touch $@

	.PHONY: bootstrap-doxygen
	bootstrap-doxygen: $(BR)/.doxygen-bootstrap.ok

	.DELETE_ON_ERROR: $(BR)/.doxygen-siphon.dep
	$(BR)/.doxygen-siphon.dep: Makefile \
	$(addprefix,$(WSROOT),$(DOXY_INPUT))
	@echo "Building siphon dependencies..."
	@rm -f "$@"; for input in $(DOXY_INPUT); do \
	[ -e "$(WS_ROOT)/$$input" ] && \
	find "$(WS_ROOT)/$$input" -type f \
	\( -name '.[ch]' -or -name '.dox' \) -print \
	\| grep -v -E '^$(WS_ROOT)/$(DOXY_EXCLUDE_REGEXP)' \
	\| sed -e "s/^/\$$(SIPHON_FILES): /" \
	>> $@; \
	done

	# Include the source -> siphon dependencies
	-include $(BR)/.doxygen-siphon.dep

	# Generate .siphon files that contain fragments of source file that
	# relate to the siphons we support.
	.NOTPARALLEL: $(SIPHON_FILES)
	$(SIPHON_FILES): $(BR)/.doxygen-bootstrap.ok \
	$(DOXY_DIR)/siphon-generate \
	$(addprefix,$(WSROOT),$(DOXY_INPUT)) \
	$(wildcard $(DOXY_DIR)/siphon/*.py)
	@echo "Validating source tree..."
	@set -e; for input in $(DOXY_INPUT); do \
	if [ ! -e "$(WS_ROOT)/$$input" ]; then \
	echo "ERROR: Input path '$$input' does not exist." >&2; \
	exit 1; \
	fi; \
	done
	@rm -rf "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
	@mkdir -p "$(SIPHON_INPUT)" "$(SIPHON_OUTPUT)"
	@touch $(SIPHON_INPUT)/files
	@echo "Collating source file list for siphoning..."
	@for input in $(DOXY_INPUT); do \
	cd "$(WS_ROOT)"; \
	find "$$input" -type f \
	\( -name '.[ch]' -or -name '.dox' \) -print \
	\| grep -v -E '^$(DOXY_EXCLUDE_REGEXP)' \
	>> $(SIPHON_INPUT)/files; \
	done
	@echo "Generating siphons..."
	@set -e; \
	cd "$(WS_ROOT)"; \
	$(DOXY_DIR)/siphon-generate \
	--output="$(SIPHON_INPUT)" \
	"@$(SIPHON_INPUT)/files"

	# Evaluate this to build a siphon doc output target for each desired
	# output type:
	# $(eval $(call siphon-process,file_extension,output_type_name))
	define siphon-process
	$(SIPHON_OUTPUT)/%.$(1): $(SIPHON_INPUT)/%.siphon \
	$(DOXY_DIR)/siphon-process \
	$(wildcard $(DOXY_DIR)/siphon/*.py) \
	$(wildcard $(DOXY_DIR)/siphon_templates/$(2)//.$(1))
	@echo "Processing siphon for $(2) from $$(notdir $$<)..."
	@set -e; \
	cd "$(WS_ROOT)"; \
	$(DOXY_DIR)/siphon-process \
	--type=$$(basename $$(notdir $$<)) \
	--format=$(2) \
	--output="$$@" \
	"$$<"
	endef

	# Process the .siphon source fragments and render them into doxygen flavored
	# markdown documentation
	.DELETE_ON_ERROR: $(SIPHON_DOCS)
	$(eval $(call siphon-process,md,markdown))

	# Process the .siphon source fragments and render them into a list of cli
	# commands.
	.DELETE_ON_ERROR: $(SIPHON_ITEMLIST)
	$(eval $(call siphon-process,itemlist,itemlist))

	# This target can be used just to generate the siphoned things
	.PHONY: doxygen-siphon
	doxygen-siphon: $(SIPHON_DOCS) $(SIPHON_ITEMLIST)

	# Generate the doxygen docs
	.PHONY: doxygen
	doxygen: $(SIPHON_DOCS)
	@mkdir -p "$(DOXY_OUTPUT)"
	@echo "Running Doxygen..."
	set -e; cd "$(WS_ROOT)"; \
	ROOT="$(WS_ROOT)" \
	BUILD_ROOT="$(BR)" \
	INPUT="$(addprefix $(WS_ROOT)/,$(DOXY_INPUT)) $(EXTRA_DOXY_INPUT)" \
	INCLUDE_PATH="$(DOXY_INCLUDE_PATH)" \
	EXCLUDE="$(DOXY_EXCLUDE)" \
	HTML=YES \
	VERSION="`git describe --tags --dirty`" \
	doxygen $(DOXY_DIR)/doxygen.cfg

	.PHONY: wipe-doxygen
	wipe-doxygen:
	rm -rf "$(BR)/docs" "$(BR)/.doxygen-siphon.d"

	.PHONY: clean
	clean: wipe-doxygen