CMakeLists.txt

cmake_minimum_required( VERSION 3.2 )
set( CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Supported configuration types" FORCE )
        
if( NOT is_subproject )
    if( NOT ROOT_DIRECTORY )
        set( ROOT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
    endif()
    if ( NOT PYTHON_EXECUTABLE )
        find_package( PythonInterp )
        if ( NOT PYTHONINTERP_FOUND )
            message( FATAL_ERROR "Python interpreter installation was not found." )
        endif()
    endif()
    execute_process( COMMAND ${PYTHON_EXECUTABLE} ./metaconfigure/signature.py ${CMAKE_BINARY_DIR}/signature
                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                        RESULT_VARIABLE signature_failure )
    file( READ "${CMAKE_BINARY_DIR}/signature.json" SIGNATURE )
endif()

project( date-adapter LANGUAGES CXX )
get_directory_property( is_subproject PARENT_DIRECTORY )
include( CMakeDependentOption REQUIRED )

if ( NOT GIT_EXECUTABLE )
    find_package( Git )
    if ( NOT GIT_FOUND )
        message( FATAL_ERROR "git installation was not found." )
    endif()
endif()

execute_process(
    COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_BRANCH
    OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(
    COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_HASH
    OUTPUT_STRIP_TRAILING_WHITESPACE
) 

message( STATUS "" )
message( STATUS "-----------------------------------------------------------" )
message( STATUS "" )
message( STATUS "date-adapter" )
message( STATUS "Git current branch: ${GIT_BRANCH}" )
message( STATUS "Git commit hash: ${GIT_HASH}" )
message( STATUS "" )
message( STATUS "-----------------------------------------------------------" )

add_library( date-adapter INTERFACE )
target_include_directories( date-adapter INTERFACE src )