CMakeLists.txt

cmake_minimum_required(VERSION 3.5.1) # version on Ubuntu Xenial
project(behavior_tree_core)

#---- Add the subdirectory cmake ----
set(CMAKE_CONFIG_PATH ${CMAKE_MODULE_PATH}  "${CMAKE_CURRENT_LIST_DIR}/cmake")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CONFIG_PATH}")

#---- Enable C++14 ----
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

if(MSVC)
    add_definitions(-D_CRT_SECURE_NO_WARNINGS)
else()
    add_definitions(-Wpedantic)
endif()

#---- Include boost to add coroutines ----
find_package(Boost COMPONENTS coroutine QUIET)

if(Boost_FOUND)
    string(REPLACE "." "0" Boost_VERSION_NODOT ${Boost_VERSION})
    if(NOT Boost_VERSION_NODOT VERSION_LESS 105900)
        message(STATUS "Found boost::coroutine2.")
        add_definitions(-DBT_BOOST_COROUTINE2)
        set(BT_COROUTINES true)
    elseif(NOT Boost_VERSION_NODOT VERSION_LESS 105300)
        message(STATUS "Found boost::coroutine.")
        add_definitions(-DBT_BOOST_COROUTINE)
        set(BT_COROUTINES true)
    endif()
    include_directories(${Boost_INCLUDE_DIRS})
endif()


if(NOT DEFINED BT_COROUTINES)
    message(STATUS "Coroutines disabled. Install Boost to enable them (version 1.59+ recommended).")
    add_definitions(-DBT_NO_COROUTINES)
endif()

set(CMAKE_POSITION_INDEPENDENT_CODE ON)

#---- project configuration ----
option(BUILD_EXAMPLES   "Build tutorials and examples" ON)
option(BUILD_UNIT_TESTS "Build the unit tests" ON)
option(BUILD_TOOLS "Build commandline tools" ON)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)

#---- Find other packages ----
find_package(Threads)
find_package(ZMQ)

list(APPEND BEHAVIOR_TREE_PUBLIC_LIBRARIES
    ${CMAKE_THREAD_LIBS_INIT}
    ${CMAKE_DL_LIBS}
)

if( ZMQ_FOUND )
    message(STATUS "ZeroMQ found.")
    add_definitions( -DZMQ_FOUND )
    list(APPEND BT_SOURCE src/loggers/bt_zmq_publisher.cpp)
else()
    message(WARNING "ZeroMQ NOT found. Skipping the build of [PublisherZMQ] and [bt_recorder].")
endif()


set(BEHAVIOR_TREE_LIBRARY ${PROJECT_NAME})

# Update the policy setting to avoid an error when loading the ament_cmake package
# at the current cmake version level
if(POLICY CMP0057)
    cmake_policy(SET CMP0057 NEW)
endif()

find_package(ament_cmake QUIET)

if ( ament_cmake_FOUND )

    # Not adding -DUSING_ROS since xml_parsing.cpp hasn't been ported to ROS2

    message(STATUS "------------------------------------------")
    message(STATUS "BehaviourTree is being built using AMENT.")
    message(STATUS "------------------------------------------")

    set(BUILD_TOOL_INCLUDE_DIRS ${ament_INCLUDE_DIRS})

elseif( CATKIN_DEVEL_PREFIX OR CATKIN_BUILD_BINARY_PACKAGE)

    set(catkin_FOUND 1)
    add_definitions( -DUSING_ROS )
    find_package(catkin REQUIRED COMPONENTS roslib)
    find_package(GTest)

    message(STATUS "------------------------------------------")
    message(STATUS "BehaviourTree is being built using CATKIN.")
    message(STATUS "------------------------------------------")

    catkin_package(
        INCLUDE_DIRS include # do not include "3rdparty" here
        LIBRARIES ${BEHAVIOR_TREE_LIBRARY}
        CATKIN_DEPENDS roslib
        CFG_EXTRAS behaviortree_cpp-extras.cmake # ZMQ found var
        )

    list(APPEND BEHAVIOR_TREE_PUBLIC_LIBRARIES ${catkin_LIBRARIES})
    set(BUILD_TOOL_INCLUDE_DIRS ${catkin_INCLUDE_DIRS})

elseif(BUILD_UNIT_TESTS)
    find_package(GTest REQUIRED)
endif()
if(NOT MSVC)
    list(APPEND BEHAVIOR_TREE_EXTERNAL_LIBRARIES "dw")
endif()

#############################################################
if(ament_cmake_FOUND)
    set( BEHAVIOR_TREE_LIB_DESTINATION   lib )
    set( BEHAVIOR_TREE_INC_DESTINATION   include )
    set( BEHAVIOR_TREE_BIN_DESTINATION   bin )

    ament_export_include_directories(include)
    ament_export_libraries(${BEHAVIOR_TREE_LIBRARY})
    ament_package()
elseif(catkin_FOUND)
    set( BEHAVIOR_TREE_LIB_DESTINATION   ${CATKIN_PACKAGE_LIB_DESTINATION} )
    set( BEHAVIOR_TREE_INC_DESTINATION   ${CATKIN_GLOBAL_INCLUDE_DESTINATION} )
    set( BEHAVIOR_TREE_BIN_DESTINATION   ${CATKIN_PACKAGE_BIN_DESTINATION} )
else()
    set( BEHAVIOR_TREE_LIB_DESTINATION   lib )
    set( BEHAVIOR_TREE_INC_DESTINATION   include )
    set( BEHAVIOR_TREE_BIN_DESTINATION   bin )

    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${BEHAVIOR_TREE_BIN_DESTINATION}" )
    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${BEHAVIOR_TREE_LIB_DESTINATION}" )
    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${BEHAVIOR_TREE_BIN_DESTINATION}" )
endif()

message( STATUS "BEHAVIOR_TREE_LIB_DESTINATION:   ${BEHAVIOR_TREE_LIB_DESTINATION} " )
message( STATUS "BEHAVIOR_TREE_BIN_DESTINATION:   ${BEHAVIOR_TREE_BIN_DESTINATION} " )
message( STATUS "CMAKE_RUNTIME_OUTPUT_DIRECTORY:  ${CMAKE_RUNTIME_OUTPUT_DIRECTORY} " )
message( STATUS "CMAKE_LIBRARY_OUTPUT_DIRECTORY:  ${CMAKE_LIBRARY_OUTPUT_DIRECTORY} " )
message( STATUS "CMAKE_ARCHIVE_OUTPUT_DIRECTORY:  ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} " )

#############################################################
# LIBRARY

list(APPEND BT_SOURCE
    src/action_node.cpp
    src/basic_types.cpp
    src/behavior_tree.cpp
    src/blackboard.cpp
    src/blackboard_entry.cpp
    src/bt_factory.cpp
    src/decorator_node.cpp
    src/condition_node.cpp
    src/control_node.cpp
    src/shared_library.cpp
    src/tree_node.cpp
    src/xml_parsing.cpp
    src/utils/blackboard_util.cpp

    src/decorators/inverter_node.cpp
    src/decorators/repeat_node.cpp
    src/decorators/retry_node.cpp
    src/decorators/subtree_node.cpp
    src/decorators/delay_node.cpp

    src/controls/if_then_else_node.cpp
    src/controls/fallback_node.cpp
    src/controls/parallel_node.cpp
    src/controls/reactive_sequence.cpp
    src/controls/reactive_fallback.cpp
    src/controls/sequence_node.cpp
    src/controls/sequence_star_node.cpp
    src/controls/switch_node.cpp
    src/controls/while_do_else_node.cpp

    src/loggers/bt_cout_logger.cpp
    src/loggers/bt_file_logger.cpp
    src/loggers/bt_minitrace_logger.cpp
    src/private/tinyxml2.cpp

    3rdparty/minitrace/minitrace.cpp
    )

find_package(Curses QUIET)

if(CURSES_FOUND)
    list(APPEND BT_SOURCE
        src/controls/manual_node.cpp
        )
    list(APPEND BEHAVIOR_TREE_PUBLIC_LIBRARIES ${CURSES_LIBRARIES})
    add_definitions(-DNCURSES_FOUND)
endif()


######################################################

if (UNIX)
    list(APPEND BT_SOURCE src/shared_library_UNIX.cpp )
    if (BUILD_SHARED_LIBS)
        add_library(${BEHAVIOR_TREE_LIBRARY} SHARED ${BT_SOURCE})
    else()
        add_library(${BEHAVIOR_TREE_LIBRARY} STATIC ${BT_SOURCE})
    endif()
endif()

if (WIN32)
    set(CMAKE_DEBUG_POSTFIX "d")
    list(APPEND BT_SOURCE src/shared_library_WIN.cpp )
    add_library(${BEHAVIOR_TREE_LIBRARY} STATIC ${BT_SOURCE} )
endif()

if( ZMQ_FOUND )
    list(APPEND BUILD_TOOL_INCLUDE_DIRS ${ZMQ_INCLUDE_DIRS})
endif()

target_link_libraries(${BEHAVIOR_TREE_LIBRARY} PUBLIC
    ${BEHAVIOR_TREE_PUBLIC_LIBRARIES})

target_link_libraries(${BEHAVIOR_TREE_LIBRARY} PRIVATE
    ${Boost_LIBRARIES}
    ${ZMQ_LIBRARIES})

#get_target_property(my_libs ${BEHAVIOR_TREE_LIBRARY} INTERFACE_LINK_LIBRARIES)
#list(REMOVE_ITEM _libs X)
#message("my_libs: ${my_libs}")

#set_target_properties(${BEHAVIOR_TREE_LIBRARY} PROPERTIES INTERFACE_LINK_LIBRARIES "")

target_compile_definitions(${BEHAVIOR_TREE_LIBRARY} PRIVATE $<$<CONFIG:Debug>:TINYXML2_DEBUG>)

target_include_directories(${BEHAVIOR_TREE_LIBRARY} PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/3rdparty>
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
    ${BUILD_TOOL_INCLUDE_DIRS})

if( ZMQ_FOUND )
    target_compile_definitions(${BEHAVIOR_TREE_LIBRARY} PUBLIC ZMQ_FOUND)
endif()

if(MSVC)
else()
    target_compile_options(${BEHAVIOR_TREE_LIBRARY} PRIVATE
        -Wall -Wextra -Werror=return-type -Wfatal-errors)
endif()

######################################################
# Test
if (BUILD_UNIT_TESTS)
    add_subdirectory(tests)
endif()

######################################################
# INSTALL

INSTALL(TARGETS ${BEHAVIOR_TREE_LIBRARY}
    EXPORT BehaviorTreeV3Config
    ARCHIVE DESTINATION ${BEHAVIOR_TREE_LIB_DESTINATION}
    LIBRARY DESTINATION ${BEHAVIOR_TREE_LIB_DESTINATION}
    RUNTIME DESTINATION ${BEHAVIOR_TREE_BIN_DESTINATION}
    )

INSTALL( DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/
    DESTINATION ${BEHAVIOR_TREE_INC_DESTINATION}
    FILES_MATCHING PATTERN "*.h*")

install(EXPORT BehaviorTreeV3Config
    DESTINATION "${BEHAVIOR_TREE_LIB_DESTINATION}/BehaviorTreeV3/cmake"
    NAMESPACE BT::)

export(TARGETS ${PROJECT_NAME}
    NAMESPACE BT::
    FILE "${CMAKE_CURRENT_BINARY_DIR}/BehaviorTreeV3Config.cmake")

export(PACKAGE ${PROJECT_NAME})

######################################################
# EXAMPLES and TOOLS
if(BUILD_TOOLS)
    add_subdirectory(tools)
endif()

if( BUILD_EXAMPLES )
    add_subdirectory(sample_nodes)
    add_subdirectory(examples)
endif()