vfsdirectory.cpp

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/***************************************************************************
 *   Copyright (C) 2005-2019 by the FIFE team                              *
 *   http://www.fifengine.net                                              *
 *   This file is part of FIFE.                                            *
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 *   FIFE is free software; you can redistribute it and/or                 *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
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 *   Free Software Foundation, Inc.,                                       *
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// Standard C++ library includes

// 3rd party library includes

// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "vfs/raw/rawdata.h"
#include "vfs/raw/rawdatafile.h"
#include "util/log/logger.h"
#include "util/base/exception.h"

#include "fife_boost_filesystem.h"
#include "vfsdirectory.h"

namespace FIFE {
    static Logger _log(LM_VFS);

    VFSDirectory::VFSDirectory(VFS* vfs, const std::string& root) : VFSSource(vfs), m_root(root) {
        FL_DBG(_log, LMsg("VFSDirectory created with root path ") << m_root);
        if(!m_root.empty() && *(m_root.end() - 1) != '/')
            m_root.append(1,'/');
    }


    VFSDirectory::~VFSDirectory() {
    }


    bool VFSDirectory::fileExists(const std::string& name) const {
        std::string fullFilename = m_root + name;

        bfs::path fullPath(fullFilename);
        std::ifstream file(fullPath.string().c_str());

        if (file)
            return true;

        return false;
    }

    RawData* VFSDirectory::open(const std::string& file) const {
        return new RawData(new RawDataFile(m_root + file));
    }

    std::set<std::string> VFSDirectory::listFiles(const std::string& path) const {
        return list(path, false);
    }

    std::set<std::string> VFSDirectory::listDirectories(const std::string& path) const {
        return list(path, true);
    }

    std::set<std::string> VFSDirectory::list(const std::string& path, bool directorys) const {
        std::set<std::string> list;
        std::string dir = m_root;

        // Avoid double slashes
        if(path[0] == '/' && m_root[m_root.size()-1] == '/') {
            dir.append(path.substr(1));
        }
        else {
            dir.append(path);
        }

        try {
            bfs::path boost_path(dir);
            if (!bfs::exists(boost_path) || !bfs::is_directory(boost_path))
                return list;

            bfs::directory_iterator end;
            for (bfs::directory_iterator i(boost_path); i != end; ++i) {
                if (bfs::is_directory(*i) != directorys)
                    continue;

                std::string filename = GetFilenameFromDirectoryIterator(i);
                if (!filename.empty())
                {
                    list.insert(filename);
                }
            }
        }
        catch (const bfs::filesystem_error& ex) {
            throw Exception(ex.what());
        }

        return list;
    }
}