PathsAndFiles.hpp

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//
// Created by jstark on 2019-12-03.
//
#ifndef FILES_READ_AND_WRITE_PATHSANDFILES_HPP
#define FILES_READ_AND_WRITE_PATHSANDFILES_HPP
#include <unistd.h>
#include <iostream>
#include <fstream>
#include <boost/filesystem.hpp>
#include "VCluster/VCluster.hpp"
static std::string get_cwd()
{
    char *cwd = nullptr;
    size_t size;
    cwd = getcwd(cwd, size);
    
    // convert current directory to string
    std::string s_cwd;
    s_cwd = cwd;
 
    //  std::cout << "The current working directory is: " << dir << std::endl;
    return s_cwd;
}
static bool check_if_file_exists(std::string path)
{
    try
    {
        // Create a filesystem::path object from given path string
        boost::filesystem::path pathObj(path);
        if (boost::filesystem::exists(pathObj) && boost::filesystem::is_regular_file(pathObj))
        {
            return true;
//          BOOST_LOG_TRIVIAL(info) << path << " -> File exists.";
        }
        
    }
    catch (boost::filesystem::filesystem_error & e)
    {
        std::cerr << e.what() << std::endl;
//      BOOST_LOG_TRIVIAL(error) << "Error when checking existence of file ( " << path << " ): " << e.what();
    }
    return false;
}
static void create_file_if_not_exist(std::string path)
{
    auto & v_cl = create_vcluster();
    if (v_cl.rank() == 0)
    {
        if ( ! check_if_file_exists(path))
        {
            std::ofstream outfile (path);
//          BOOST_LOG_TRIVIAL(info) << "Created file with name: " << path;
        }
    }
}
 
 
static bool check_if_directory_exists(std::string path)
{
    try
    {
        // Create a filesystem::path object from given path string
        boost::filesystem::path pathObj(path);
        if (boost::filesystem::exists(pathObj) && boost::filesystem::is_directory(pathObj)) return true;
    }
    catch (boost::filesystem::filesystem_error & e)
    {
        std::cerr << e.what() << std::endl;
    }
    return false;
}
static void create_directory_if_not_exist(std::string path,bool silent=0)
{
    auto & v_cl = create_vcluster();
    if (v_cl.rank() == 0)
    {
        if ( ! check_if_directory_exists(path))
        {
            boost::filesystem::create_directory(path);
//          BOOST_LOG_TRIVIAL(info) << "Created directory with name: " << path;
        }
        else {
            if(!silent){
                std::cout << "Folder for current settings ( '" << path << "' ) already exists. New files will be saved to this folder." << std::endl;
                 }
            }
//      BOOST_LOG_TRIVIAL(info) << "Folder for current settings ( '" << path << "' ) already exists. New files will be saved to this folder.";
    }
}
 
 
 
 
 
#endif //FILES_READ_AND_WRITE_PATHSANDFILES_HPP