template_cpp_cmake/CMakeLists.txt at main · temken/template_cpp_cmake · GitHub

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cmake_minimum_required(VERSION 3.17)

project(template_cpp_cmake VERSION "0.1.0")

# Use C++-11
set(CMAKE_CXX_STANDARD 11)

# Require (at least) it
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Don't use e.g. GNU extension (like -std=gnu++11) for portability
set(CMAKE_CXX_EXTENSIONS OFF)

set(BIN_DIR ${PROJECT_SOURCE_DIR}/bin)
set(GENERATED_DIR ${PROJECT_BINARY_DIR}/generated)
set(INCLUDE_DIR ${PROJECT_SOURCE_DIR}/include)
set(LIB_DIR ${PROJECT_SOURCE_DIR}/lib)
set(SRC_DIR ${PROJECT_SOURCE_DIR}/src)
set(TESTS_DIR ${PROJECT_SOURCE_DIR}/tests)
set(EXTERNAL_DIR ${PROJECT_SOURCE_DIR}/external)

# External projects
include(FetchContent)

# Googletest
set(GTEST_DIR ${EXTERNAL_DIR}/googletest)
FetchContent_Declare(googletest
  GIT_REPOSITORY https://github.com/google/googletest.git
  GIT_TAG release-1.12.1
  SOURCE_DIR "${GTEST_DIR}/src"
  BINARY_DIR "${GTEST_DIR}/build"
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  TEST_COMMAND ""
)

# Version header
execute_process( # Git commit hash
  COMMAND git rev-parse --abbrev-ref HEAD
  WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process( # Git commit hash
  COMMAND git log -1 --format=%h
  WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_COMMIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

execute_process( # Git commit hash
  COMMAND git rev-parse --abbrev-ref HEAD
  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  OUTPUT_VARIABLE CMAKE_GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process( # Git commit hash
  COMMAND git log -1 --format=%h
  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  OUTPUT_VARIABLE CMAKE_GIT_COMMIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

configure_file(
  ${INCLUDE_DIR}/version.hpp.in
  ${GENERATED_DIR}/version.hpp
)

# Source and include directories
include_directories(${INCLUDE_DIR})
add_subdirectory(${SRC_DIR})

# Code Coverage Configuration
if(NOT TARGET coverage_config)
  add_library(coverage_config INTERFACE)
endif()

option(CODE_COVERAGE "Enable coverage reporting" OFF)

# if(CODE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
if(CODE_COVERAGE)
  # Add required flags (GCC & LLVM/Clang)
  target_compile_options(coverage_config INTERFACE
    -O0 # no optimization
    -g # generate debug info
    --coverage # sets all required flags
  )

  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.13)
    target_link_options(coverage_config INTERFACE --coverage)
  else()
    target_link_libraries(coverage_config INTERFACE --coverage)
  endif()
endif(CODE_COVERAGE)

# endif(CODE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
option(BUILD_TESTING "Build the testing tree." ON)

# Only build tests if we are the top-level project
# Allows this to be used by super projects with `add_subdirectory`
if(BUILD_TESTING AND(PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR))
  enable_testing()

  FetchContent_GetProperties(googletest)

  if(NOT googletest_POPULATED)
    FetchContent_Populate(googletest)
    add_subdirectory(
      ${googletest_SOURCE_DIR}
      ${googletest_BINARY_DIR}
      EXCLUDE_FROM_ALL)
  endif()

  add_subdirectory(${TESTS_DIR})
endif()