128 lines
3.5 KiB
C++
128 lines
3.5 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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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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VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, 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 std::shared_ptr<VfsDirectory>(new LayeredVfsDirectory(std::move(dirs), std::move(name)));
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}
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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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std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFileRelative(std::string_view path) const {
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VirtualFile file;
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for (const auto& layer : dirs) {
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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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std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetDirectoryRelative(
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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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const auto dir = layer->GetDirectoryRelative(path);
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if (dir != nullptr)
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out.push_back(dir);
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}
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return LayerDirectories(out);
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}
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std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFile(std::string_view name) const {
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return GetFileRelative(name);
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}
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std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetSubdirectory(std::string_view name) const {
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return GetDirectoryRelative(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<std::shared_ptr<VfsFile>> LayeredVfsDirectory::GetFiles() const {
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std::vector<VirtualFile> out;
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for (const auto& layer : dirs) {
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for (const auto& file : layer->GetFiles()) {
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if (std::find_if(out.begin(), out.end(), [&file](const VirtualFile& comp) {
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return comp->GetName() == file->GetName();
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}) == out.end())
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out.push_back(file);
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}
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}
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return out;
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}
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std::vector<std::shared_ptr<VfsDirectory>> 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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for (const auto& subdir : names)
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out.push_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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std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetParentDirectory() const {
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return dirs[0]->GetParentDirectory();
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}
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std::shared_ptr<VfsDirectory> LayeredVfsDirectory::CreateSubdirectory(std::string_view name) {
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return nullptr;
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}
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std::shared_ptr<VfsFile> LayeredVfsDirectory::CreateFile(std::string_view name) {
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return nullptr;
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}
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bool LayeredVfsDirectory::DeleteSubdirectory(std::string_view name) {
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return false;
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}
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bool LayeredVfsDirectory::DeleteFile(std::string_view name) {
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return false;
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}
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bool LayeredVfsDirectory::Rename(std::string_view name_) {
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name = name_;
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return true;
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}
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bool LayeredVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
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return false;
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}
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} // namespace FileSys
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