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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "core/file_sys/vfs.h"
namespace FileSys {
// Wrapper function to allow for more efficient handling of dirs.size() == 0, 1 cases.
VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name = "");
// Class that stacks multiple VfsDirectories on top of each other, attempting to read from the first
// one and falling back to the one after. The highest priority directory (overwrites all others)
// should be element 0 in the dirs vector.
class LayeredVfsDirectory : public VfsDirectory {
friend VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name);
LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name);
public:
std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override;
std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override;
std::shared_ptr<VfsFile> GetFile(std::string_view name) const override;
std::shared_ptr<VfsDirectory> GetSubdirectory(std::string_view name) const override;
std::string GetFullPath() const override;
std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
bool IsWritable() const override;
bool IsReadable() const override;
std::string GetName() const override;
std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
std::shared_ptr<VfsDirectory> CreateSubdirectory(std::string_view name) override;
std::shared_ptr<VfsFile> CreateFile(std::string_view name) override;
bool DeleteSubdirectory(std::string_view name) override;
bool DeleteFile(std::string_view name) override;
bool Rename(std::string_view name) override;
protected:
bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
private:
std::vector<VirtualDir> dirs;
std::string name;
};
} // namespace FileSys
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