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CMakeLists.txt
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# Computational Helper for Direction and Routing (CHDR)
# Copyright (c) 2024 by Nazar Elsayed & Louis Eriksson
#
# Licensed under CC BY-NC-ND 4.0
# https://creativecommons.org/licenses/by-nc-nd/4.0/
cmake_minimum_required(VERSION ${CMAKE_VERSION})
project(CHDR VERSION 0.0.0 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED True)
message(NOTICE "NOTICE: Checking for local Git repository:")
execute_process(
COMMAND git rev-parse --is-inside-work-tree
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
RESULT_VARIABLE IS_GIT_REPO
OUTPUT_QUIET
)
if (IS_GIT_REPO EQUAL 0)
message(STATUS "STATUS: SUCCESS detecting local Git repository.")
# Extract version from tags.
execute_process(
COMMAND git describe --tags
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
)
# Get the current branch.
execute_process(
COMMAND git rev-parse --abbrev-ref HEAD
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_BRANCH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
# Get the current commit hash.
execute_process(
COMMAND git rev-parse --short HEAD
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE GIT_COMMIT_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else()
message(STATUS "STATUS: FAILED detecting local Git repository.")
endif()
message(NOTICE "NOTICE: Detecting CHDR version:")
# Use git version or fallback to a default version.
if (GIT_VERSION)
string(REGEX REPLACE "^v([0-9]+\\.[0-9]+\\.[0-9]+).*" "\\1" GIT_VERSION "${GIT_VERSION}")
# Extract MAJOR, MINOR, and PATCH versions directly from GIT_VERSION
if (GIT_VERSION)
string(REGEX MATCH "^([0-9]+)\\.([0-9]+)\\.([0-9]+)" _MATCHES "${GIT_VERSION}")
set(CHDR_VERSION_MAJOR ${CMAKE_MATCH_1})
set(CHDR_VERSION_MINOR ${CMAKE_MATCH_2})
set(CHDR_VERSION_PATCH ${CMAKE_MATCH_3})
endif ()
message(STATUS "STATUS: SUCCESS determining CHDR version from git tags.")
else()
message(WARNING "WARNING: FAILED automatically determining CHDR version from git tags.")
message(STATUS "STATUS: Attempting to read version from chdr.hpp...")
file(READ "${CMAKE_SOURCE_DIR}/chdr.hpp" CHDR_HEADER_CONTENTS)
if (CHDR_HEADER_CONTENTS)
foreach (VARIABLE MAJOR MINOR PATCH)
string(REGEX MATCH "#define[ \t]+CHDR_VERSION_${VARIABLE}[ \t]+\"?([^\n\"]*)\"?" _MATCH "${CHDR_HEADER_CONTENTS}")
set("CHDR_VERSION_${VARIABLE}" "${CMAKE_MATCH_1}")
endforeach ()
else ()
message(FATAL_ERROR "FATAL_ERROR: Could not deduce version from chdr.hpp. Project must be versioned.")
endif ()
endif()
if (NOT GIT_BRANCH OR GIT_BRANCH MATCHES "^(master|main)$")
set(CHDR_VERSION_TWEAK "dev")
set(CHDR_VERSION_METADATA ${GIT_COMMIT_HASH})
else ()
string(REGEX REPLACE "[^a-zA-Z0-9\\-]" "_" GIT_BRANCH_SANITIZED ${GIT_BRANCH})
set(CHDR_VERSION_TWEAK ${GIT_BRANCH_SANITIZED})
endif ()
if (CHDR_VERSION_TWEAK)
set(CHDR_VERSION "${CHDR_VERSION_MAJOR}.${CHDR_VERSION_MINOR}.${CHDR_VERSION_PATCH}-${CHDR_VERSION_TWEAK}")
endif ()
if (CHDR_VERSION_METADATA)
set(CHDR_VERSION_FULL "${CHDR_VERSION}+${CHDR_VERSION_METADATA}")
else ()
set(CHDR_VERSION_FULL "${CHDR_VERSION}")
endif ()
message(STATUS "STATUS: CHDR_VERSION determined as \"${CHDR_VERSION}\"")
message(NOTICE "NOTICE: Generating chdr.hpp:")
# GENERATE "chdr.hpp":
file(GLOB_RECURSE HEADER_FILES "${CMAKE_SOURCE_DIR}/include/*.hpp")
set(INCLUDE_HEADERS "")
foreach (HEADER ${HEADER_FILES})
file(RELATIVE_PATH RELATIVE_HEADER "${CMAKE_SOURCE_DIR}" "${HEADER}")
set(INCLUDE_HEADERS "${INCLUDE_HEADERS}#include \"${RELATIVE_HEADER}\"\n")
endforeach ()
configure_file(chdr.hpp.in ${CMAKE_SOURCE_DIR}/chdr.hpp)
message(NOTICE "Generating README.md")
configure_file(README.md.in ${CMAKE_SOURCE_DIR}/README.md)
message(NOTICE "NOTICE: Building test application:")
# EXTREME WARNINGS:
set(WARNINGS_BASE "-Wall -Wextra -Wpedantic -Wformat-security -Wconversion -Wsign-conversion -Wimplicit-fallthrough -Wshadow -Wnon-virtual-dtor -Wold-style-cast -Wcast-align -Woverloaded-virtual -Wnull-dereference -Wdouble-promotion -Wvla -Wformat=2 -Wmissing-declarations -Wsuggest-override -Wstrict-overflow=5 -Wuninitialized -Wswitch-enum -Wswitch-default -Wcast-qual -Wwrite-strings -Wpointer-arith -Wfloat-equal -Wc++20-extensions -Wtrampolines -Wbidi-chars=any")
#if (DEFINED SUPER_PEDANTIC)
message(WARNING "WARNING: \"SUPER_PEDANTIC\" enabled. Build system may catch warnings as errors.")
set(WARNINGS "${WARNINGS_BASE} -pedantic -Werror")
#else ()
set(WARNINGS "${WARNINGS_BASE}")
#endif ()
# HIGHLIGHTING FOR COMPILER ERRORS:
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -freorder-blocks-and-partition")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fcolor-diagnostics")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /FC")
endif()
# DIFFERENT BUILD MODES:
set(CMAKE_CXX_FLAGS_DEBUG "${WARNINGS} -O0 -fsanitize=address,leak,undefined -fno-inline -fno-strict-aliasing -fno-omit-frame-pointer -fno-rtti -g")
set(CMAKE_CXX_FLAGS_NOSANITIZERS "${WARNINGS} -O3 -fno-inline -fno-strict-aliasing -fno-omit-frame-pointer -fno-rtti -fno-verbose-asm -flto -g -gdwarf-5")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${WARNINGS} -Ofast -march=native -mtune=native -funroll-loops -ftree-vectorize -ffast-math -fstrict-aliasing -fno-strict-overflow -fdata-sections -ffunction-sections -fomit-frame-pointer -fno-rtti -DNDEBUG")
# DEFINE LIBRARIES:
add_library(libdebug INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/test/external/debug.hpp)
target_include_directories(libdebug INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/test/external)
add_library(libchdr INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/chdr.hpp)
target_include_directories(libchdr INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
# TEST:
add_executable(chdr test/main.cpp)
target_include_directories(chdr PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/test/include
)
target_link_libraries(chdr PRIVATE
libchdr
libdebug
)
target_precompile_headers(chdr INTERFACE stdafx.hpp)
## LINK OPTIONS:
if (UNIX)
if (CMAKE_BUILD_TYPE STREQUAL "Release")
target_link_options(chdr PRIVATE -Wl,--strip-all -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined)
else ()
target_link_options(chdr PRIVATE -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined)
endif ()
endif (UNIX)
message(NOTICE "NOTICE: Generating documentation with Doxygen:")
configure_file(Doxyfile.in ${CMAKE_SOURCE_DIR}/Doxyfile)
message(STATUS "Generating Doxyfile...")
execute_process(
COMMAND doxygen ${CMAKE_SOURCE_DIR}/Doxyfile
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
RESULT_VARIABLE DOXYGEN_RESULT
)
message(STATUS "Cleaning up...")
if (DOXYGEN_RESULT EQUAL 0)
# Clean up potential junk files left by Doxygen.
if (EXISTS "${CMAKE_SOURCE_DIR}/docs/html")
file(REMOVE_RECURSE "${CMAKE_SOURCE_DIR}/docs/html")
endif ()
if (EXISTS "${CMAKE_SOURCE_DIR}/docs/latex")
file(REMOVE_RECURSE "${CMAKE_SOURCE_DIR}/docs/latex")
endif ()
if (EXISTS "${CMAKE_SOURCE_DIR}/html")
file(REMOVE_RECURSE "${CMAKE_SOURCE_DIR}/html")
endif ()
if (EXISTS "${CMAKE_SOURCE_DIR}/latex")
file(REMOVE_RECURSE "${CMAKE_SOURCE_DIR}/latex")
endif ()
endif ()