EnvironmentVariables.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#pragma once
 
#include <string>
#include <vector>
 
namespace Belle2 {
  class EnvironmentVariables {
  public:
    static bool isSet(const std::string& name);
 
    static std::string get(const std::string& name, const std::string& fallback = "");
 
    static std::vector<std::string> getList(const std::string& name, const std::vector<std::string>& fallback = {},
                                            const std::string& separators = " \t\n\r");
 
    static std::vector<std::string> getOrCreateList(const std::string& name, const std::string& fallback,
                                                    const std::string& separators = " \t\n\r");
 
    static std::string expand(const std::string& text);
  };
};