// etabench
// Copyright (C) 2022 xaizek <xaizek@posteo.net>
//
// This file is part of etabench.
//
// etabench is free software: you can redistribute it and/or modify
// it under the terms of version 3 of the GNU General Public License
// as published by the Free Software Foundation.
//
// etabench 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 etabench.  If not, see <https://www.gnu.org/licenses/>.

#ifndef ETABENCH__UTILS__OS_HPP__
#define ETABENCH__UTILS__OS_HPP__

#include <string>
#include <vector>

// Temporary directory in RAII-style.
class TempDir
{
public:
    // Makes a temporary directory, which is removed in destructor.
    explicit TempDir(const std::string &prefix);

    // Make sure temporary directory is deleted only once.
    TempDir(const TempDir &rhs) = delete;
    TempDir & operator=(const TempDir &rhs) = delete;

    // Removes temporary directory and all its content, if it still exists.
    ~TempDir();

public:
    // Retrieves full path to the temporary directory.
    std::string getPath() const
    { return path; }

private:
    // Full path to the temporary directory.
    std::string path;
};

// Runs external command for its exit code.  Returns exit code of the command.
// Throws `std::runtime_error` on failure to run the command or when it didn't
// finish properly.
int queryProc(std::vector<std::string> &&cmd);

#endif // ETABENCH__UTILS__OS_HPP__