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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <string>
#include <utility>
namespace mongo {
namespace unittest {
/**
* An RAII temporary directory that deletes itself and all contents files on scope exit.
*/
class TempDir {
TempDir(const TempDir&) = delete;
TempDir& operator=(const TempDir&) = delete;
public:
/**
* Creates a new unique temporary directory.
*
* Throws if this fails for any reason, such as bad permissions.
*
* The leaf of the directory path will start with namePrefix and have
* unspecified characters added to ensure uniqueness.
*
* namePrefix must not contain either / or \
*/
explicit TempDir(const std::string& namePrefix);
/**
* Delete the directory and all contents.
*
* This only does best-effort. In particular no new files should be created in the directory
* once the TempDir goes out of scope. Any errors are logged and ignored.
*/
~TempDir();
/**
* Release the path encapsulated by this TempDir to be cleaned up by the caller as necessary.
*
* A released TempDir is left with an empty path, and its destructor will perform no cleanup.
*/
std::string release() noexcept {
return std::exchange(_path, {});
}
const std::string& path() const {
return _path;
}
/**
* Set the path where TempDir() will create temporary directories.
*/
static void setTempPath(std::string tempPath);
private:
std::string _path;
};
} // namespace unittest
} // namespace mongo
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