cmake_minimum_required(VERSION 3.5)
project(
  SimpleCaller
  VERSION 1.0.0
  LANGUAGES CXX)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

#
# auto genrate a stamp header
#
execute_process(
  COMMAND git rev-parse --short HEAD
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE)

execute_process(
  COMMAND git rev-parse --abbrev-ref HEAD
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE)

set(CUSTOM_VALUE "Blah blah custom value.")

configure_file("${CMAKE_CURRENT_SOURCE_DIR}/include/version.h.in"
               "${CMAKE_CURRENT_BINARY_DIR}/include/version.h")

add_custom_target(generate_version_h ALL
                  DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/include/version.h")

#
# Build
#
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO
    "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -O2 -g -DNDEBUG")
set(CMAKE_BUILD_TYPE
    "Release"
    CACHE STRING "Choose the type of build." FORCE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
                                             "RelWithDebInfo")

file(GLOB_RECURSE SOURCES "src/*.cpp")
# file(GLOB_RECURSE HEADERS "include/*.h")

find_package(simple_library REQUIRED)

# shared - set_target_properties is so that the binary is libSimpleLibrary.so
# add_depdencies so the config.h file is auto generated
add_executable(${PROJECT_NAME} ${SOURCES})
target_include_directories(${PROJECT_NAME} PUBLIC include)
target_link_libraries(${PROJECT_NAME} SimpleLibrary::SimpleLibrary)
set_target_properties(${PROJECT_NAME} PROPERTIES OUTPUT_NAME "simple_caller")