doc/CMakeLists.txt

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find_package(Doxygen)

if (DOXYGEN_FOUND)
    set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in)
    set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)

    configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
    message("Doxygen build started")

    add_custom_target(otbr-doc)

    add_custom_target(doxygen ALL
        COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
        COMMENT "Generating documentation with Doxygen"
        VERBATIM)
    add_dependencies(otbr-doc doxygen)

    if(OTBR_DBUS)
        set(DBUS_DOC_SRC ${CMAKE_BINARY_DIR}/src/dbus/server/index.html)
        set(DBUS_DOC_TARGET ${CMAKE_CURRENT_BINARY_DIR}/html/dbus-api.html)
        add_custom_target(otbr-dbus-server-doc-copy ALL
            COMMAND cp ${DBUS_DOC_SRC} ${DBUS_DOC_TARGET}
            VERBATIM
        )
        add_dependencies(otbr-dbus-server-doc-copy doxygen otbr-dbus-server-doc)
        add_dependencies(otbr-doc otbr-dbus-server-doc-copy)
    endif()
else()
    message("Doxygen must be installed to generate doxygen documentation")
endif()