filecache.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
// Copyright (C) 2013 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
 
#pragma once
 
#include <iostream>
#include <string>
#include <string_view>
 
class FileCache
{
public:
        /*
                'dir' is the file cache directory to use.
        */
        FileCache(const std::string &dir) : m_dir(dir) {}
 
        bool update(const std::string &name, std::string_view data);
        bool load(const std::string &name, std::ostream &os);
        bool exists(const std::string &name);
 
        // Copy another file on disk into the cache
        bool updateCopyFile(const std::string &name, const std::string &src_path);
 
private:
        std::string m_dir;
 
        void createDir();
        bool loadByPath(const std::string &path, std::ostream &os);
        bool updateByPath(const std::string &path, std::string_view data);
};