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vcmi/lib/filesystem/CFilesystemLoader.cpp
Ivan Savenko 1d9139303a introduced zip support into vcmi
- minizip library is now part of sources, located at lib/minizip
- cmakefiles will compile minizip as dynamic library (Note: only 2 files used by vcmi are included in minizip.so)
- zip files can be loaded similar to other archives via filesystem.json
- mods can use Content.zip instead of Content/ directory. Files in directory will replace files in archive.
2013-07-30 15:02:55 +00:00

124 lines
3.5 KiB
C++

#include "StdInc.h"
#include "CFilesystemLoader.h"
#include "CFileInfo.h"
#include "CFileInputStream.h"
CFilesystemLoader::CFilesystemLoader(const std::string &mountPoint, const std::string & baseDirectory, size_t depth, bool initial):
baseDirectory(baseDirectory),
mountPoint(mountPoint),
fileList(listFiles(mountPoint, depth, initial))
{
logGlobal->traceStream() << "Filesystem loaded, " << fileList.size() << " files found";
}
std::unique_ptr<CInputStream> CFilesystemLoader::load(const ResourceID & resourceName) const
{
assert(fileList.count(resourceName));
std::unique_ptr<CInputStream> stream(new CFileInputStream(baseDirectory + '/' + fileList.at(resourceName)));
return stream;
}
bool CFilesystemLoader::existsResource(const ResourceID & resourceName) const
{
return fileList.count(resourceName);
}
std::string CFilesystemLoader::getMountPoint() const
{
return mountPoint;
}
boost::optional<std::string> CFilesystemLoader::getResourceName(const ResourceID & resourceName) const
{
assert(existsResource(resourceName));
return baseDirectory + '/' + fileList.at(resourceName);
}
std::unordered_set<ResourceID> CFilesystemLoader::getFilteredFiles(std::function<bool(const ResourceID &)> filter) const
{
std::unordered_set<ResourceID> foundID;
for (auto & file : fileList)
{
if (filter(file.first))
foundID.insert(file.first);
} return foundID;
}
bool CFilesystemLoader::createResource(std::string filename, bool update)
{
ResourceID resID(filename);
if (fileList.find(resID) != fileList.end())
return true;
if (!boost::iequals(mountPoint, filename.substr(0, mountPoint.size())))
{
logGlobal->traceStream() << "Can't create file: wrong mount point: " << mountPoint;
return false;
}
filename = filename.substr(mountPoint.size());
if (!update)
{
std::ofstream newfile (baseDirectory + "/" + filename);
if (!newfile.good())
return false;
}
fileList[resID] = filename;
return true;
}
std::unordered_map<ResourceID, std::string> CFilesystemLoader::listFiles(const std::string &mountPoint, size_t depth, bool initial) const
{
std::set<EResType::Type> initialTypes;
initialTypes.insert(EResType::DIRECTORY);
initialTypes.insert(EResType::TEXT);
initialTypes.insert(EResType::ARCHIVE_LOD);
initialTypes.insert(EResType::ARCHIVE_VID);
initialTypes.insert(EResType::ARCHIVE_SND);
initialTypes.insert(EResType::ARCHIVE_ZIP);
assert(boost::filesystem::is_directory(baseDirectory));
std::unordered_map<ResourceID, std::string> fileList;
std::vector<std::string> path;//vector holding relative path to our file
boost::filesystem::recursive_directory_iterator enddir;
boost::filesystem::recursive_directory_iterator it(baseDirectory, boost::filesystem::symlink_option::recurse);
for(; it != enddir; ++it)
{
EResType::Type type;
if (boost::filesystem::is_directory(it->status()))
{
path.resize(it.level()+1);
path.back() = it->path().leaf().string();
// don't iterate into directory if depth limit reached
it.no_push(depth <= it.level());
type = EResType::DIRECTORY;
}
else
type = EResTypeHelper::getTypeFromExtension(boost::filesystem::extension(*it));
if (!initial || vstd::contains(initialTypes, type))
{
//reconstruct relative filename (not possible via boost AFAIK)
std::string filename;
for (size_t i=0; i<it.level() && i<path.size(); i++)
filename += path[i] + '/';
filename += it->path().leaf().string();
fileList[ResourceID(mountPoint + filename, type)] = filename;
}
}
return fileList;
}