colobot/src/common/resources/resourcemanager.cpp

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/*
* This file is part of the Colobot: Gold Edition source code
* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
* http://epsiteс.ch; http://colobot.info; http://github.com/colobot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://gnu.org/licenses
*/
#include "common/resources/resourcemanager.h"
#include "common/config.h"
#include "common/logger.h"
#include "common/make_unique.h"
#include <physfs.h>
#include <boost/filesystem.hpp>
#include <boost/regex.hpp>
#if PLATFORM_WINDOWS
#include "app/system_windows.h"
#endif
namespace fs = boost::filesystem;
CResourceManager::CResourceManager(const char *argv0)
{
if (!PHYSFS_init(argv0))
{
GetLogger()->Error("Error while initializing physfs: %s\n", PHYSFS_getLastError());
assert(false);
}
PHYSFS_permitSymbolicLinks(1);
}
CResourceManager::~CResourceManager()
{
if (PHYSFS_isInit())
{
if (!PHYSFS_deinit())
{
GetLogger()->Error("Error while deinitializing physfs: %s\n", PHYSFS_getLastError());
}
}
}
std::string CResourceManager::CleanPath(const std::string& path)
{
return boost::regex_replace(path, boost::regex("(.*)/\\.\\./"), "");
}
bool CResourceManager::AddLocation(const std::string &location, bool prepend)
{
if (!PHYSFS_mount(location.c_str(), nullptr, prepend ? 0 : 1))
{
GetLogger()->Error("Error while mounting \"%s\": %s\n", location.c_str(), PHYSFS_getLastError());
return false;
}
return true;
}
bool CResourceManager::RemoveLocation(const std::string &location)
{
if (!PHYSFS_removeFromSearchPath(location.c_str()))
{
GetLogger()->Error("Error while unmounting \"%s\": %s\n", location.c_str(), PHYSFS_getLastError());
return false;
}
return true;
}
bool CResourceManager::SetSaveLocation(const std::string &location)
{
if (!PHYSFS_setWriteDir(location.c_str()))
{
GetLogger()->Error("Error while setting save location to \"%s\": %s\n", location.c_str(), PHYSFS_getLastError());
return false;
}
return true;
}
std::string CResourceManager::GetSaveLocation()
{
if (PHYSFS_isInit())
{
return PHYSFS_getWriteDir();
}
return "";
}
std::unique_ptr<CSDLFileWrapper> CResourceManager::GetSDLFileHandler(const std::string &filename)
{
return MakeUnique<CSDLFileWrapper>(CleanPath(filename));
}
std::unique_ptr<CSNDFileWrapper> CResourceManager::GetSNDFileHandler(const std::string &filename)
{
return MakeUnique<CSNDFileWrapper>(CleanPath(filename));
}
bool CResourceManager::Exists(const std::string &filename)
{
if (PHYSFS_isInit())
{
return PHYSFS_exists(CleanPath(filename).c_str());
}
return false;
}
bool CResourceManager::DirectoryExists(const std::string& directory)
{
if (PHYSFS_isInit())
{
return PHYSFS_exists(CleanPath(directory).c_str()) && PHYSFS_isDirectory(CleanPath(directory).c_str());
}
return false;
}
bool CResourceManager::CreateDirectory(const std::string& directory)
{
if (PHYSFS_isInit())
{
return PHYSFS_mkdir(CleanPath(directory).c_str());
}
return false;
}
//TODO: Don't use boost::filesystem here
bool CResourceManager::RemoveDirectory(const std::string& directory)
{
if (PHYSFS_isInit())
{
bool success = true;
std::string writeDir = PHYSFS_getWriteDir();
try
{
std::string path = writeDir + "/" + CleanPath(directory);
#ifdef PLATFORM_WINDOWS
fs::remove_all(CSystemUtilsWindows::UTF8_Decode(path));
#else
fs::remove_all(path);
#endif
}
catch (std::exception&)
{
success = false;
}
return success;
}
return false;
}
std::vector<std::string> CResourceManager::ListFiles(const std::string &directory)
{
std::vector<std::string> result;
if (PHYSFS_isInit())
{
char **files = PHYSFS_enumerateFiles(CleanPath(directory).c_str());
for (char **i = files; *i != nullptr; i++)
{
result.push_back(*i);
}
PHYSFS_freeList(files);
}
return result;
}
std::vector<std::string> CResourceManager::ListDirectories(const std::string &directory)
{
std::vector<std::string> result;
if (PHYSFS_isInit())
{
char **files = PHYSFS_enumerateFiles(CleanPath(directory).c_str());
for (char **i = files; *i != nullptr; i++)
{
std::string path = CleanPath(directory) + "/" + (*i);
if (PHYSFS_isDirectory(path.c_str()))
{
result.push_back(*i);
}
}
PHYSFS_freeList(files);
}
return result;
}
long long CResourceManager::GetFileSize(const std::string& filename)
{
if (PHYSFS_isInit())
{
PHYSFS_File* file = PHYSFS_openRead(CleanPath(filename).c_str());
if(file == nullptr) return -1;
long long size = PHYSFS_fileLength(file);
PHYSFS_close(file);
return size;
}
return -1;
}
long long CResourceManager::GetLastModificationTime(const std::string& filename)
{
if (PHYSFS_isInit())
{
return PHYSFS_getLastModTime(CleanPath(filename).c_str());
}
return -1;
}
//TODO: Don't use boost::filesystem. Why doesn't PHYSFS have this?
bool CResourceManager::Move(const std::string& from, const std::string& to)
{
if (PHYSFS_isInit())
{
bool success = true;
std::string writeDir = PHYSFS_getWriteDir();
try
{
std::string path_from = writeDir + "/" + CleanPath(from);
std::string path_to = writeDir + "/" + CleanPath(to);
#ifdef PLATFORM_WINDOWS
fs::rename(CSystemUtilsWindows::UTF8_Decode(path_from), CSystemUtilsWindows::UTF8_Decode(path_to));
#else
fs::rename(path_from, path_to);
#endif
}
catch (std::exception&)
{
success = false;
}
return success;
}
return false;
}
bool CResourceManager::Remove(const std::string& filename)
{
if (PHYSFS_isInit())
{
return PHYSFS_delete(filename.c_str()) != 0;
}
return false;
}