Build config for a very simple C/C++ project with tests and benchmark support

CMakeLists.txt

# Description: Build configuration for a simple project ready for benchmarking and testing.
#              New source files can be added on demand as the build system recurses the repository.
# Compatibility: macOS 13.3
# Dependencies: gtest, Google Benchmark

cmake_minimum_required(VERSION 3.25)
set(CMAKE_CXX_STANDARD 17)
project(challenge_project)

set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Find ccache
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK "${CCACHE_PROGRAM}")
endif()

## Configure testing
include(FetchContent)
set(FETCHCONTENT_QUIET FALSE)

# Download and configure googletest
FetchContent_Declare(
    gtest
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG v1.13.0
    GIT_SHALLOW ON
)
FetchContent_GetProperties(gtest)
if(NOT gtest_POPULATED)
  FetchContent_Populate(gtest)
  add_subdirectory(${gtest_SOURCE_DIR} ${CMAKE_BINARY_DIR}/_deps/gtest-build)
endif()

# Download and configure google benchmark
FetchContent_Declare(
    benchmark
    GIT_REPOSITORY https://github.com/google/benchmark.git
    GIT_TAG v1.7.1
    GIT_SHALLOW ON
)
FetchContent_GetProperties(benchmark)
if(NOT benchmark_POPULATED)
  FetchContent_Populate(benchmark)
  set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
  add_subdirectory(${benchmark_SOURCE_DIR} ${CMAKE_BINARY_DIR}/_deps/benchmark-build)
endif()

include_directories(${gtest_SOURCE_DIR}/googletest/include)
include_directories(${benchmark_SOURCE_DIR}/include)
include_directories(${CMAKE_SOURCE_DIR}/include)

## Configure executables

add_executable(test main.cpp)

file(GLOB_RECURSE SOURCE_FILES "src/*.cpp")
target_sources(test PRIVATE ${SOURCE_FILES})

target_link_libraries(test gtest gtest_main)