C++系统相关操作8 - 获取程序的工作路径&获取用户的Home目录

#pragma once

#include <cstdint>
#include <string>

namespace cutl
{
    /**
     * @brief Get the working directory of the current excuting process.
     *
     * @return file path of the working directory
     */
    std::string getcwd();

    /**
     * @brief Get the home dir for the current user.
     *
     * @return std::string the home directory.
     */
    std::string homedir();
} // namespace cutl

#include <map>
#include <iostream>
#include <strutil.h>
#include <cstdlib>
#include "sysutil.h"
#include "inner/logger.h"

#if defined(_WIN32) || defined(__WIN32__)
    #include<direct.h>
#else
    #include <unistd.h>
#endif

namespace cutl
{
    std::string getcwd()
    {
        static constexpr int MAX_PATH_LEN = 1024;
#if defined(_WIN32) || defined(__WIN32__)
        char buffer[MAX_PATH_LEN] = {0};
        char *presult = _getcwd(buffer, MAX_PATH_LEN);
        if (nullptr == presult)
        {
            CUTL_ERROR("_getcwd failure, presult is nullptr");
            return "";
        }
        return std::string(presult);
#else
        char buffer[MAX_PATH_LEN] = {0};
        char *presult = getcwd(buffer, MAX_PATH_LEN);
        if (nullptr == presult)
        {
            CUTL_ERROR("getcwd failure, presult is nullptr");
            return "";
        }
        return std::string(presult);
#endif
    }

    std::string homedir()
    {
#if defined(_WIN32) || defined(__WIN32__)
        return cutl::getenv("USERPROFILE", "");
#else
        return cutl::getenv("HOME", "");
#endif
    }
} // namespace cutl

#include "common.hpp"
#include "sysutil.h"

void TestGetcwdAndHomedir()
{
    PrintSubTitle("TestGetcwdAndHomedir");

    std::cout << "working directory: " << cutl::getcwd() << std::endl;
    std::cout << "Home directory: " << cutl::homedir() << std::endl;
}