135 lines
4.2 KiB
CMake
135 lines
4.2 KiB
CMake
|
#
|
||
|
|
# Copyright (C) 2018 by George Cave - gcave@stablecoder.ca
|
||
|
|
#
|
||
|
|
# 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.
|
||
|
|
|
||
|
|
find_package(Doxygen)
|
||
|
|
|
||
|
|
option(BUILD_DOCUMENTATION "Build API documentation using Doxygen. (make doc)"
|
||
|
|
${DOXYGEN_FOUND})
|
||
|
|
|
||
|
|
# Builds doxygen documentation with a default 'Doxyfile.in' or with a specified
|
||
|
|
# one, and can make the results installable (under the `doc` install target)
|
||
|
|
#
|
||
|
|
# This can only be used once per project, as each target generated is as
|
||
|
|
# `doc-${PROJECT_NAME}` unless TARGET_NAME is specified.
|
||
|
|
# ~~~
|
||
|
|
# Optional Arguments:
|
||
|
|
#
|
||
|
|
# ADD_TO_DOC
|
||
|
|
# If specified, adds this generated target to be a dependency of the more general
|
||
|
|
# `doc` target.
|
||
|
|
#
|
||
|
|
# INSTALLABLE
|
||
|
|
# Adds the generated documentation to the generic `install` target, under the
|
||
|
|
# `documentation` installation group.
|
||
|
|
#
|
||
|
|
# PROCESS_DOXYFILE
|
||
|
|
# If set, then will process the found Doxyfile through the CMAKE `configure_file`
|
||
|
|
# function for macro replacements before using it. (@ONLY)
|
||
|
|
#
|
||
|
|
# TARGET_NAME <str>
|
||
|
|
# The name to give the doc target. (Default: doc-${PROJECT_NAME})
|
||
|
|
#
|
||
|
|
# OUTPUT_DIR <str>
|
||
|
|
# The directory to place the generated output. (Default: ${CMAKE_CURRENT_BINARY_DIR}/doc)
|
||
|
|
#
|
||
|
|
# INSTALL_PATH <str>
|
||
|
|
# The path to install the documenttation under. (if not specified, defaults to
|
||
|
|
# 'share/${PROJECT_NAME})
|
||
|
|
#
|
||
|
|
# DOXYFILE_PATH <str>
|
||
|
|
# The given doxygen file to use/process. (Defaults to'${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile')
|
||
|
|
# ~~~
|
||
|
|
function(build_docs)
|
||
|
|
set(OPTIONS ADD_TO_DOC INSTALLABLE PROCESS_DOXYFILE)
|
||
|
|
set(SINGLE_VALUE_KEYWORDS
|
||
|
|
TARGET_NAME
|
||
|
|
INSTALL_PATH
|
||
|
|
DOXYFILE_PATH
|
||
|
|
OUTPUT_DIR)
|
||
|
|
set(MULTI_VALUE_KEYWORDS)
|
||
|
|
cmake_parse_arguments(build_docs
|
||
|
|
"${OPTIONS}"
|
||
|
|
"${SINGLE_VALUE_KEYWORDS}"
|
||
|
|
"${MULTI_VALUE_KEYWORDS}"
|
||
|
|
${ARGN})
|
||
|
|
|
||
|
|
if(BUILD_DOCUMENTATION)
|
||
|
|
if(NOT DOXYGEN_FOUND)
|
||
|
|
message(FATAL_ERROR "Doxygen is needed to build the documentation.")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(NOT build_docs_DOXYFILE_PATH)
|
||
|
|
set(DOXYFILE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile")
|
||
|
|
elseif(EXISTS "${build_docs_DOXYFILE_PATH}")
|
||
|
|
set(DOXYFILE_PATH "${build_docs_DOXYFILE_PATH}")
|
||
|
|
else()
|
||
|
|
set(DOXYFILE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${build_docs_DOXYFILE_PATH}")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(NOT EXISTS "${DOXYFILE_PATH}")
|
||
|
|
message(
|
||
|
|
SEND_ERROR
|
||
|
|
"Could not find Doxyfile to use for procesing documentation at: ${DOXYFILE_PATH}"
|
||
|
|
)
|
||
|
|
return()
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(build_docs_PROCESS_DOXYFILE)
|
||
|
|
set(DOXYFILE "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile")
|
||
|
|
configure_file("${DOXYFILE_PATH}" "${DOXYFILE}" @ONLY)
|
||
|
|
else()
|
||
|
|
set(DOXYFILE "${DOXYFILE_PATH}")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(build_docs_OUTPUT_DIR)
|
||
|
|
set(OUT_DIR "${build_docs_OUTPUT_DIR}")
|
||
|
|
else()
|
||
|
|
set(OUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/doc")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
file(MAKE_DIRECTORY "${OUT_DIR}")
|
||
|
|
|
||
|
|
if(build_docs_TARGET_NAME)
|
||
|
|
set(TARGET_NAME ${build_docs_TARGET_NAME})
|
||
|
|
else()
|
||
|
|
set(TARGET_NAME doc-${PROJECT_NAME})
|
||
|
|
endif()
|
||
|
|
|
||
|
|
IF(NOT TARGET ${TARGET_NAME})
|
||
|
|
add_custom_target(${TARGET_NAME}
|
||
|
|
COMMAND ${DOXYGEN_EXECUTABLE} "${DOXYFILE}"
|
||
|
|
WORKING_DIRECTORY "${OUT_DIR}"
|
||
|
|
VERBATIM)
|
||
|
|
ENDIF()
|
||
|
|
|
||
|
|
if(build_docs_ADD_TO_DOC)
|
||
|
|
if(NOT TARGET doc)
|
||
|
|
add_custom_target(doc)
|
||
|
|
endif()
|
||
|
|
|
||
|
|
add_dependencies(doc ${TARGET_NAME})
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(build_docs_INSTALLABLE)
|
||
|
|
if(NOT build_docs_INSTALL_PATH)
|
||
|
|
set(build_docs_INSTALL_PATH share/${PROJECT_NAME})
|
||
|
|
endif()
|
||
|
|
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/doc/
|
||
|
|
COMPONENT documentation
|
||
|
|
DESTINATION ${build_docs_INSTALL_PATH})
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
endfunction()
|