132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <algorithm>
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#include <set>
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#include <utility>
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#include "core/file_sys/vfs_layered.h"
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namespace FileSys {
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LayeredVfsDirectory::LayeredVfsDirectory(std::vector<VirtualDir> dirs_, std::string name_)
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: dirs(std::move(dirs_)), name(std::move(name_)) {}
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LayeredVfsDirectory::~LayeredVfsDirectory() = default;
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VirtualDir LayeredVfsDirectory::MakeLayeredDirectory(std::vector<VirtualDir> dirs,
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std::string name) {
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if (dirs.empty())
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return nullptr;
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if (dirs.size() == 1)
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return dirs[0];
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return VirtualDir(new LayeredVfsDirectory(std::move(dirs), std::move(name)));
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}
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VirtualFile LayeredVfsDirectory::GetFileRelative(std::string_view path) const {
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for (const auto& layer : dirs) {
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const auto file = layer->GetFileRelative(path);
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if (file != nullptr)
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return file;
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}
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return nullptr;
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}
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VirtualDir LayeredVfsDirectory::GetDirectoryRelative(std::string_view path) const {
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std::vector<VirtualDir> out;
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for (const auto& layer : dirs) {
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auto dir = layer->GetDirectoryRelative(path);
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if (dir != nullptr) {
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out.emplace_back(std::move(dir));
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}
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}
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return MakeLayeredDirectory(std::move(out));
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}
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VirtualFile LayeredVfsDirectory::GetFile(std::string_view file_name) const {
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return GetFileRelative(file_name);
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}
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VirtualDir LayeredVfsDirectory::GetSubdirectory(std::string_view subdir_name) const {
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return GetDirectoryRelative(subdir_name);
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}
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std::string LayeredVfsDirectory::GetFullPath() const {
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return dirs[0]->GetFullPath();
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}
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std::vector<VirtualFile> LayeredVfsDirectory::GetFiles() const {
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std::vector<VirtualFile> out;
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std::set<std::string, std::less<>> out_names;
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for (const auto& layer : dirs) {
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for (auto& file : layer->GetFiles()) {
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auto file_name = file->GetName();
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if (!out_names.contains(file_name)) {
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out_names.emplace(std::move(file_name));
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out.emplace_back(std::move(file));
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}
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}
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}
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return out;
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}
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std::vector<VirtualDir> LayeredVfsDirectory::GetSubdirectories() const {
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std::vector<std::string> names;
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for (const auto& layer : dirs) {
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for (const auto& sd : layer->GetSubdirectories()) {
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if (std::find(names.begin(), names.end(), sd->GetName()) == names.end())
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names.push_back(sd->GetName());
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}
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}
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std::vector<VirtualDir> out;
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out.reserve(names.size());
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for (const auto& subdir : names)
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out.emplace_back(GetSubdirectory(subdir));
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return out;
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}
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bool LayeredVfsDirectory::IsWritable() const {
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return false;
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}
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bool LayeredVfsDirectory::IsReadable() const {
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return true;
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}
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std::string LayeredVfsDirectory::GetName() const {
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return name.empty() ? dirs[0]->GetName() : name;
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}
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VirtualDir LayeredVfsDirectory::GetParentDirectory() const {
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return dirs[0]->GetParentDirectory();
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}
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VirtualDir LayeredVfsDirectory::CreateSubdirectory(std::string_view subdir_name) {
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return nullptr;
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}
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VirtualFile LayeredVfsDirectory::CreateFile(std::string_view file_name) {
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return nullptr;
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}
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bool LayeredVfsDirectory::DeleteSubdirectory(std::string_view subdir_name) {
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return false;
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}
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bool LayeredVfsDirectory::DeleteFile(std::string_view file_name) {
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return false;
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}
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bool LayeredVfsDirectory::Rename(std::string_view new_name) {
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name = new_name;
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return true;
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}
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} // namespace FileSys
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