clean up

libconfig/CMakeLists.txt

-# Copyright Maarten L. Hekkelman, 2022
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at
-# http://www.boost.org/LICENSE_1_0.txt)
-
-cmake_minimum_required(VERSION 3.16)
-
-# set the project name
-project(libconfig VERSION 1.2.0 LANGUAGES CXX)
-
-include(GNUInstallDirs)
-include(CMakePackageConfigHelpers)
-include(Dart)
-
-set(CXX_EXTENSIONS OFF)
-set(CMAKE_CXX_STANDARD 17 CACHE STRING "The minimum version of C++ required for this library")
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-option(ENABLE_TESTING "Build the unit test applications" OFF)
-
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers")
-elseif(MSVC)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
-endif()
-
-if(MSVC)
-	# make msvc standards compliant...
-	add_compile_options(/permissive-)
-
-	macro(get_WIN32_WINNT version)
-		if(WIN32 AND CMAKE_SYSTEM_VERSION)
-			set(ver ${CMAKE_SYSTEM_VERSION})
-			string(REPLACE "." "" ver ${ver})
-			string(REGEX REPLACE "([0-9])" "0\\1" ver ${ver})
-
-			set(${version} "0x${ver}")
-		endif()
-	endmacro()
-
-	get_WIN32_WINNT(ver)
-	add_definitions(-D_WIN32_WINNT=${ver})
-endif()
-
-add_library(libconfig INTERFACE)
-add_library(libconfig::libconfig ALIAS libconfig)
-
-target_include_directories(libconfig INTERFACE
-	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-	$<INSTALL_INTERFACE:include>
-)
-
-# adding header sources just helps IDEs
-target_sources(libconfig INTERFACE
-	$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:include>/cfg.hpp
-)
-
-set_target_properties(libconfig PROPERTIES PUBLIC_HEADER include/cfg.hpp)
-
-# installation
-set(version_config "${CMAKE_CURRENT_BINARY_DIR}/libconfigConfigVersion.cmake")
-
-set(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
-
-write_basic_package_version_file("${version_config}"
-	VERSION ${PROJECT_VERSION}
-	COMPATIBILITY SameMajorVersion)
-
-install(TARGETS libconfig
-	EXPORT libconfigConfig
-	PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
-
-install(
-	DIRECTORY include/cfg
-	DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-	COMPONENT Devel
-)
-
-export(TARGETS libconfig NAMESPACE libconfig:: FILE libconfigTargets.cmake)
-
-if(WIN32 AND NOT CYGWIN)
-	set(CONFIG_LOC CMake)
-else()
-	set(CONFIG_LOC "${CMAKE_INSTALL_LIBDIR}/cmake/libconfig")
-endif()
-
-configure_package_config_file(
-	${PROJECT_SOURCE_DIR}/cmake/libconfigConfig.cmake.in
-	${PROJECT_SOURCE_DIR}/cmake/libconfigConfig.cmake
-	INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/libconfig
-	PATH_VARS INCLUDE_INSTALL_DIR
-)
-
-install(EXPORT libconfigConfig
-	FILE libconfigTargets.cmake
-	NAMESPACE libconfig::
-	DESTINATION ${CONFIG_LOC})
-
-install(
-	FILES cmake/libconfigConfig.cmake "${version_config}"
-	DESTINATION ${CONFIG_LOC})
-
-# if(ENABLE_TESTING)
-# 	enable_testing()
-
-# 	add_executable(libconfig-unit-test ${PROJECT_SOURCE_DIR}/test/unit-test.cpp)
-
-# 	target_link_libraries(libconfig-unit-test libconfig::libconfig)
-
-# 	if(MSVC)
-# 		# Specify unwind semantics so that MSVC knowns how to handle exceptions
-# 		target_compile_options(libconfig-unit-test PRIVATE /EHsc)
-# 	endif()
-
-# 	add_test(NAME libconfig-unit-test
-# 		COMMAND $<TARGET_FILE:libconfig-unit-test> -- ${PROJECT_SOURCE_DIR}/test)
-# endif()

libconfig/README.md

-# libconfig
-
-A library for parsing command line arguments and making them available throughout a program.
-
-## Synopsis
-
-```c++
-#include <cfg.hpp>
-
-int VERBOSE = 0;
-
-int main(int argc, char * const argv[])
-{
-    // config is a singleton class
-    auto &config = cfg::config::instance();
-
-    // Tell config what options to accept
-    // This can be done more than once, replacing
-    // the current set of options.
-    config.init("usage: test [options] input output",
-        cfg::make_option("verbose,v", "Use verbose output"),
-        cfg::make_option("help,h", "Show this help"),
-        cfg::make_option<std::string>("opt1", "foo", "First option"),
-        cfg::make_option<std::string>("config", "Name of a config file to use"),
-        cfg::make_option<float>("float-value,f", "Another option")
-    );
-
-    // Do the parsing of argv
-    config.parse(argc, argv);
-
-    // Set verbose based on number of times the
-    // -v or --verbose flag was passed
-    VERBOSE = config.count("verbose");
-
-    // Check for the help flag
-    if (config.has("help"))
-    {
-        // print out the options to the screen
-        std::cout << config << std::endl;
-        exit(0);
-    }
-
-    // Optionally read a config file
-    // Config file is by default called myapp.conf
-    // but can be overridden with the --config parameter
-    // Files will be located in current dictory and /etc
-    if (config.has("config"))
-        config.parse_config_file("config", "myapp.conf",
-            { fs::current_path().string(), "/etc/" }
-        );
-
-    // Operands are parameters that are not options
-    // E.g. filenames to process
-    if (config.operands().size() != 2)
-    {
-        std::cerr << config << std::endl;
-        exit(1);
-    }
-
-    std::filesystem::path input = config.operands().front();
-    std::filesystem::path output = config.operands().back();
-    
-    // Get values from options with a value
-    std::option1 = config.get<std::string>("opt1");
-    float option2 = 3.14;
-    if (config.has("float-value"))
-        option2 = config.get<float>("float-value");
-
-    ... etc
-
-}
-```

libconfig/changelog

-Version 1.1.1
-- Better support for older GCC compilers
-Version 1.2.0
-- New, tuples base implementation
-- Add 'usage' parameter to init
-
-Version 1.1.0
-- Parse config files
-
-Version 1.0.2
-- Fix get_terminal_width. Should be inline of course.
-
-Version 1.0.1
-- printing options, word-wrapped
-
-Version 1.0.0
-- initial release
\ No newline at end of file

libconfig/cmake/libconfigConfig.cmake

-
-####### Expanded from @PACKAGE_INIT@ by configure_package_config_file() #######
-####### Any changes to this file will be overwritten by the next CMake run ####
-####### The input file was libconfigConfig.cmake.in                            ########
-
-get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../" ABSOLUTE)
-
-macro(set_and_check _var _file)
-  set(${_var} "${_file}")
-  if(NOT EXISTS "${_file}")
-    message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !")
-  endif()
-endmacro()
-
-macro(check_required_components _NAME)
-  foreach(comp ${${_NAME}_FIND_COMPONENTS})
-    if(NOT ${_NAME}_${comp}_FOUND)
-      if(${_NAME}_FIND_REQUIRED_${comp})
-        set(${_NAME}_FOUND FALSE)
-      endif()
-    endif()
-  endforeach()
-endmacro()
-
-####################################################################################
-
-INCLUDE("${CMAKE_CURRENT_LIST_DIR}/libconfigTargets.cmake")
-
-check_required_components(libconfig)

libconfig/cmake/libconfigConfig.cmake.in

-@PACKAGE_INIT@
-
-INCLUDE("${CMAKE_CURRENT_LIST_DIR}/libconfigTargets.cmake")
-
-check_required_components(libconfig)

libconfig/include/cfg/utilities.hpp

-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2022 Maarten L. Hekkelman
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include <climits>
-#include <cstdint>
-
-#if __has_include(<sys/ioctl.h>)
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <unistd.h>
-#elif defined(_MSC_VER)
-#include <windows.h>
-#endif
-
-namespace cfg
-{
-
-#if defined(_MSC_VER)
-/// @brief Get the width in columns of the current terminal
-/// @return number of columns of the terminal
-inline uint32_t get_terminal_width()
-{
-    CONSOLE_SCREEN_BUFFER_INFO csbi;
-    ::GetConsoleScreenBufferInfo(::GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
-    return csbi.srWindow.Right - csbi.srWindow.Left + 1;
-}
-
-#elif __has_include(<sys/ioctl.h>)
-/// @brief Get the width in columns of the current terminal
-/// @return number of columns of the terminal
-inline uint32_t get_terminal_width()
-{
-	uint32_t result = 80;
-
-	if (::isatty(STDOUT_FILENO))
-	{
-		struct winsize w;
-		::ioctl(0, TIOCGWINSZ, &w);
-		result = w.ws_col;
-	}
-	return result;
-}
-#else
-#warning "Could not find the terminal width, falling back to default"
-inline uint32_t get_terminal_width()
-{
-	return 80;
-}
-#endif
-
-} // namespace cfg
\ No newline at end of file

libconfig/test/unit-test.conf

-# A simple test config file
-aap = 2
-noot = 3
\ No newline at end of file