# CMakeLists.txt
#
# Documentation CMake build file for the 'sockpp' library.
#
# ---------------------------------------------------------------------------
# This file is part of the "sockpp" C++ socket library.
#
# Copyright (c) 2018 Frank Pagliughi
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from this
# software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ---------------------------------------------------------------------------


## documentation settings
find_package(Doxygen)
if(NOT DOXYGEN_FOUND)
    message(FATAL_ERROR "Doxygen is needed to build the documentation.")
endif()

set(DOXYTARGETS)

file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/doc)

set(DOXYFILE_SRC Doxyfile.cmake)
set(DOXYFILE ${CMAKE_CURRENT_BINARY_DIR}/${DOXYFILE_SRC})

configure_file(${DOXYFILE_SRC} ${DOXYFILE} @ONLY)
add_custom_target(
    ${DOXYFILE_SRC}.target
    COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYFILE}
    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
    COMMENT "Generating API documentation with Doxygen"
    VERBATIM
)
set(DOXYTARGETS ${DOXYTARGETS} ${DOXYFILE_SRC}.target)

add_custom_target(doc ALL DEPENDS ${DOXYTARGETS})

install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/doc DESTINATION share)