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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <utility>
#include "core/file_sys/vfs_layered.h"
namespace FileSys {
VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name) {
if (dirs.empty())
return nullptr;
if (dirs.size() == 1)
return dirs[0];
return std::shared_ptr<VfsDirectory>(new LayeredVfsDirectory(std::move(dirs), std::move(name)));
}
LayeredVfsDirectory::LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name)
: dirs(std::move(dirs)), name(std::move(name)) {}
LayeredVfsDirectory::~LayeredVfsDirectory() = default;
std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFileRelative(std::string_view path) const {
for (const auto& layer : dirs) {
const auto file = layer->GetFileRelative(path);
if (file != nullptr)
return file;
}
return nullptr;
}
std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetDirectoryRelative(
std::string_view path) const {
std::vector<VirtualDir> out;
for (const auto& layer : dirs) {
auto dir = layer->GetDirectoryRelative(path);
if (dir != nullptr)
out.push_back(std::move(dir));
}
return LayerDirectories(std::move(out));
}
std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFile(std::string_view name) const {
return GetFileRelative(name);
}
std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetSubdirectory(std::string_view name) const {
return GetDirectoryRelative(name);
}
std::string LayeredVfsDirectory::GetFullPath() const {
return dirs[0]->GetFullPath();
}
std::vector<std::shared_ptr<VfsFile>> LayeredVfsDirectory::GetFiles() const {
std::vector<VirtualFile> out;
for (const auto& layer : dirs) {
for (const auto& file : layer->GetFiles()) {
if (std::find_if(out.begin(), out.end(), [&file](const VirtualFile& comp) {
return comp->GetName() == file->GetName();
}) == out.end()) {
out.push_back(file);
}
}
}
return out;
}
std::vector<std::shared_ptr<VfsDirectory>> LayeredVfsDirectory::GetSubdirectories() const {
std::vector<std::string> names;
for (const auto& layer : dirs) {
for (const auto& sd : layer->GetSubdirectories()) {
if (std::find(names.begin(), names.end(), sd->GetName()) == names.end())
names.push_back(sd->GetName());
}
}
std::vector<VirtualDir> out;
out.reserve(names.size());
for (const auto& subdir : names)
out.push_back(GetSubdirectory(subdir));
return out;
}
bool LayeredVfsDirectory::IsWritable() const {
return false;
}
bool LayeredVfsDirectory::IsReadable() const {
return true;
}
std::string LayeredVfsDirectory::GetName() const {
return name.empty() ? dirs[0]->GetName() : name;
}
std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetParentDirectory() const {
return dirs[0]->GetParentDirectory();
}
std::shared_ptr<VfsDirectory> LayeredVfsDirectory::CreateSubdirectory(std::string_view name) {
return nullptr;
}
std::shared_ptr<VfsFile> LayeredVfsDirectory::CreateFile(std::string_view name) {
return nullptr;
}
bool LayeredVfsDirectory::DeleteSubdirectory(std::string_view name) {
return false;
}
bool LayeredVfsDirectory::DeleteFile(std::string_view name) {
return false;
}
bool LayeredVfsDirectory::Rename(std::string_view name_) {
name = name_;
return true;
}
bool LayeredVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
return false;
}
} // namespace FileSys
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