ScreenPlay/CMake/GenerateCMakeVariableHeader.cmake

# ! generate_cmake_variable_header : Generates a header CmakeVariables.h that contains defines for the variables specified in
# CmakeVariables.h.in!
#
# The generated CmakeVariables.h header can then be used to access e.g. the PROJECT_NAME define in C++ code.
#
# Example generate_cmake_variable_header(${PROJECT_NAME})
#
function(generate_cmake_variable_header TARGET)
    # ⚠️ Also add to CMakeVariables.h.in ⚠️

    set(SCREENPLAY_SOURCE_DIR ${CMAKE_SOURCE_DIR})
    # Like v4.2-beta3 or v5.0.1-stable
    set(SCREENPLAY_GODOT_VERSION ${GODOT_VERSION})
    # Only single numbers
    set(SCREENPLAY_GODOT_VERSION_MAJOR ${GODOT_VERSION_MAJOR})
    set(SCREENPLAY_GODOT_VERSION_MINOR ${GODOT_VERSION_MINOR})
    # stable, rc1 or beta5
    set(SCREENPLAY_GODOT_RELEASE_TYPE ${GODOT_RELEASE_TYPE})
    set(SCREENPLAY_BUILD_TYPE "${CMAKE_BUILD_TYPE}")
    set(SCREENPLAY_BUILD_DATE "${BUILD_DATE}")
    set(SCREENPLAY_VERSION "${SCREENPLAY_VERSION}")
    set(SCREENPLAY_GIT_BRANCH_NAME "${GIT_BRANCH_NAME}")
    set(SCREENPLAY_GIT_COMMIT_HASH "${GIT_COMMIT_HASH}")

    set(SCREENPLAY_DEPLOY_VERSION 0)
    if(${SCREENPLAY_DEPLOY})
        set(SCREENPLAY_DEPLOY_VERSION 1)
    endif()

    set(SCREENPLAY_STEAM_VERSION 0)
    if(${SCREENPLAY_STEAM})
        set(SCREENPLAY_STEAM_VERSION 1)
    endif()

    # Specify the configuration file from which the header file will be generated
    configure_file(${CMAKE_SOURCE_DIR}/CMake/CMakeVariables.h.in ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}/CMakeVariables.h @ONLY)
    message(
        STATUS "GENERATE: ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}/CMakeVariables.h and add ${TARGET} to ${CMAKE_CURRENT_BINARY_DIR}")

    # Add the directory containing the generated header
    target_include_directories(${TARGET} PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
endfunction()