Filesystem.cpp

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/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2013-2024  Laurent Forthomme
 *                2023       Dmitri Konstantinov
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <fstream>
 
#include "CepGen/Core/Exception.h"
#include "CepGen/Utils/Filesystem.h"
 
namespace cepgen {
  namespace utils {
    bool fileExists(const std::string& path) { return fs::exists(path); }
 
    std::string fileExtension(const std::string& file) { return fs::path(file).extension(); }
 
    std::string readFile(const std::string& filename) {
      if (auto ifile = std::ifstream(filename); ifile.good())
        return std::string(std::istreambuf_iterator<char>(ifile), std::istreambuf_iterator<char>());
      throw CG_FATAL("readFile") << "Failed to open the file '" << filename << "' for reading.";
    }
  }  //namespace utils
}  // namespace cepgen