unixfs.hpp

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/*
    Copyright (C) 2014-2016 Leosac
 
    This file is part of Leosac.
 
    Leosac is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    Leosac is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Affero General Public License for more details.
 
    You should have received a copy of the GNU Affero General Public License
    along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef UNIXFS_HPP
#define UNIXFS_HPP
 
#include <fstream>
#include <list>
#include <string>
 
#include "exception/fsexception.hpp"
 
namespace Leosac
{
namespace Tools
{
class UnixFs
{
    UnixFs() = delete;
 
  public:
    using FileList = std::list<std::string>;
 
  public:
    static std::string getCWD();
 
    static FileList listFiles(const std::string &folder,
                              const std::string &extension = std::string());
 
    static std::string stripPath(const std::string &filename);
 
    static std::string readAll(const std::string &path);
 
    static bool fileExists(const std::string &path);
 
    template <typename T>
    static T readSysFsValue(const std::string &path)
    {
        std::ifstream file(path);
        T val;
 
        if (!file.good())
            throw(FsException("could not open \'" + path + '\''));
        file >> val;
        file.clear();
        file.seekg(0);
        return (val);
    }
 
    template <typename T>
    static void writeSysFsValue(const std::string &path, const T &val)
    {
        std::ofstream file(path);
 
        if (!file.good())
            throw(FsException("could not open " + path + '\''));
        file << val;
        file.clear();
        file.seekp(0);
    }
};
}
}
 
#endif // UNIXFS_HPP