mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-21 10:43:23 +02:00
VFS Regression and Accuracy Fixes (#776)
* Regression and Mode Fixes * Review Fixes * string_view correction * Add operator& for FileSys::Mode * Return std::string from SanitizePath * Farming Simulator Fix * Use != With mode operator&
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f6657bc8d7
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@ -826,7 +826,7 @@ std::string_view GetPathWithoutTop(std::string_view path) {
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}
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while (path[0] == '\\' || path[0] == '/') {
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path.remove_suffix(1);
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path.remove_prefix(1);
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if (path.empty()) {
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return path;
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}
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@ -870,6 +870,15 @@ std::string_view RemoveTrailingSlash(std::string_view path) {
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return path;
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}
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std::string SanitizePath(std::string_view path_) {
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std::string path(path_);
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std::replace(path.begin(), path.end(), '\\', '/');
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path.erase(std::unique(path.begin(), path.end(),
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[](char c1, char c2) { return c1 == '/' && c2 == '/'; }),
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path.end());
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return std::string(RemoveTrailingSlash(path));
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}
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IOFile::IOFile() {}
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IOFile::IOFile(const std::string& filename, const char openmode[], int flags) {
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@ -178,6 +178,9 @@ std::vector<T> SliceVector(const std::vector<T>& vector, size_t first, size_t la
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return std::vector<T>(vector.begin() + first, vector.begin() + first + last);
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}
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// Removes trailing slash, makes all '\\' into '/', and removes duplicate '/'.
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std::string SanitizePath(std::string_view path);
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// simple wrapper for cstdlib file functions to
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// hopefully will make error checking easier
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// and make forgetting an fclose() harder
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@ -11,7 +11,13 @@ namespace FileSys {
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enum class Mode : u32 {
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Read = 1,
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Write = 2,
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ReadWrite = 3,
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Append = 4,
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WriteAppend = 6,
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};
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inline u32 operator&(Mode lhs, Mode rhs) {
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return static_cast<u32>(lhs) & static_cast<u32>(rhs);
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}
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} // namespace FileSys
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@ -13,24 +13,31 @@
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namespace FileSys {
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static std::string PermissionsToCharArray(Mode perms) {
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std::string out;
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switch (perms) {
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case Mode::Read:
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out += "r";
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break;
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case Mode::Write:
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out += "r+";
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break;
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case Mode::Append:
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out += "a";
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break;
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static std::string ModeFlagsToString(Mode mode) {
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std::string mode_str;
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// Calculate the correct open mode for the file.
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if (mode & Mode::Read && mode & Mode::Write) {
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if (mode & Mode::Append)
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mode_str = "a+";
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else
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mode_str = "r+";
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} else {
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if (mode & Mode::Read)
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mode_str = "r";
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else if (mode & Mode::Append)
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mode_str = "a";
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else if (mode & Mode::Write)
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mode_str = "w";
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}
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return out + "b";
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mode_str += "b";
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return mode_str;
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}
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RealVfsFile::RealVfsFile(const std::string& path_, Mode perms_)
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: backing(path_, PermissionsToCharArray(perms_).c_str()), path(path_),
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: backing(path_, ModeFlagsToString(perms_).c_str()), path(path_),
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parent_path(FileUtil::GetParentPath(path_)),
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path_components(FileUtil::SplitPathComponents(path_)),
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parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)),
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@ -53,11 +60,11 @@ std::shared_ptr<VfsDirectory> RealVfsFile::GetContainingDirectory() const {
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}
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bool RealVfsFile::IsWritable() const {
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return perms == Mode::Append || perms == Mode::Write;
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return (perms & Mode::WriteAppend) != 0;
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}
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bool RealVfsFile::IsReadable() const {
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return perms == Mode::Read || perms == Mode::Write;
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return (perms & Mode::ReadWrite) != 0;
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}
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size_t RealVfsFile::Read(u8* data, size_t length, size_t offset) const {
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@ -79,7 +86,7 @@ bool RealVfsFile::Rename(std::string_view name) {
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path = (parent_path + DIR_SEP).append(name);
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path_components = parent_components;
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path_components.push_back(std::move(name_str));
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backing = FileUtil::IOFile(path, PermissionsToCharArray(perms).c_str());
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backing = FileUtil::IOFile(path, ModeFlagsToString(perms).c_str());
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return out;
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}
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@ -93,7 +100,7 @@ RealVfsDirectory::RealVfsDirectory(const std::string& path_, Mode perms_)
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path_components(FileUtil::SplitPathComponents(path)),
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parent_components(FileUtil::SliceVector(path_components, 0, path_components.size() - 1)),
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perms(perms_) {
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if (!FileUtil::Exists(path) && (perms == Mode::Write || perms == Mode::Append))
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if (!FileUtil::Exists(path) && perms & Mode::WriteAppend)
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FileUtil::CreateDir(path);
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if (perms == Mode::Append)
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@ -120,11 +127,11 @@ std::vector<std::shared_ptr<VfsDirectory>> RealVfsDirectory::GetSubdirectories()
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}
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bool RealVfsDirectory::IsWritable() const {
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return perms == Mode::Write || perms == Mode::Append;
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return (perms & Mode::WriteAppend) != 0;
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}
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bool RealVfsDirectory::IsReadable() const {
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return perms == Mode::Read || perms == Mode::Write;
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return (perms & Mode::ReadWrite) != 0;
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}
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std::string RealVfsDirectory::GetName() const {
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@ -24,7 +24,8 @@ namespace Service::FileSystem {
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constexpr u64 EMULATED_SD_REPORTED_SIZE = 32000000000;
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static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
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std::string_view dir_name) {
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std::string_view dir_name_) {
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std::string dir_name(FileUtil::SanitizePath(dir_name_));
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if (dir_name.empty() || dir_name == "." || dir_name == "/" || dir_name == "\\")
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return base;
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@ -38,7 +39,8 @@ std::string VfsDirectoryServiceWrapper::GetName() const {
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return backing->GetName();
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}
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ResultCode VfsDirectoryServiceWrapper::CreateFile(const std::string& path, u64 size) const {
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ResultCode VfsDirectoryServiceWrapper::CreateFile(const std::string& path_, u64 size) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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auto file = dir->CreateFile(FileUtil::GetFilename(path));
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if (file == nullptr) {
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@ -52,7 +54,8 @@ ResultCode VfsDirectoryServiceWrapper::CreateFile(const std::string& path, u64 s
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::DeleteFile(const std::string& path) const {
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ResultCode VfsDirectoryServiceWrapper::DeleteFile(const std::string& path_) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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if (path == "/" || path == "\\") {
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// TODO(DarkLordZach): Why do games call this and what should it do? Works as is but...
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@ -60,14 +63,15 @@ ResultCode VfsDirectoryServiceWrapper::DeleteFile(const std::string& path) const
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}
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if (dir->GetFile(FileUtil::GetFilename(path)) == nullptr)
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return FileSys::ERROR_PATH_NOT_FOUND;
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if (!backing->DeleteFile(FileUtil::GetFilename(path))) {
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if (!dir->DeleteFile(FileUtil::GetFilename(path))) {
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// TODO(DarkLordZach): Find a better error code for this
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return ResultCode(-1);
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}
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path) const {
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ResultCode VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path_) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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if (dir == nullptr && FileUtil::GetFilename(FileUtil::GetParentPath(path)).empty())
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dir = backing;
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@ -79,7 +83,8 @@ ResultCode VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path)
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path) const {
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ResultCode VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path_) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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if (!dir->DeleteSubdirectory(FileUtil::GetFilename(path))) {
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// TODO(DarkLordZach): Find a better error code for this
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@ -88,7 +93,8 @@ ResultCode VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path)
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string& path) const {
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ResultCode VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string& path_) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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if (!dir->DeleteSubdirectoryRecursive(FileUtil::GetFilename(path))) {
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// TODO(DarkLordZach): Find a better error code for this
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@ -97,8 +103,10 @@ ResultCode VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::str
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::RenameFile(const std::string& src_path,
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const std::string& dest_path) const {
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ResultCode VfsDirectoryServiceWrapper::RenameFile(const std::string& src_path_,
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const std::string& dest_path_) const {
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std::string src_path(FileUtil::SanitizePath(src_path_));
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std::string dest_path(FileUtil::SanitizePath(dest_path_));
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auto src = backing->GetFileRelative(src_path);
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if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) {
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// Use more-optimized vfs implementation rename.
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@ -130,8 +138,10 @@ ResultCode VfsDirectoryServiceWrapper::RenameFile(const std::string& src_path,
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return RESULT_SUCCESS;
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}
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ResultCode VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_path,
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const std::string& dest_path) const {
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ResultCode VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_path_,
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const std::string& dest_path_) const {
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std::string src_path(FileUtil::SanitizePath(src_path_));
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std::string dest_path(FileUtil::SanitizePath(dest_path_));
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auto src = GetDirectoryRelativeWrapped(backing, src_path);
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if (FileUtil::GetParentPath(src_path) == FileUtil::GetParentPath(dest_path)) {
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// Use more-optimized vfs implementation rename.
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@ -154,8 +164,9 @@ ResultCode VfsDirectoryServiceWrapper::RenameDirectory(const std::string& src_pa
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return ResultCode(-1);
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}
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ResultVal<FileSys::VirtualFile> VfsDirectoryServiceWrapper::OpenFile(const std::string& path,
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ResultVal<FileSys::VirtualFile> VfsDirectoryServiceWrapper::OpenFile(const std::string& path_,
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FileSys::Mode mode) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto npath = path;
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while (npath.size() > 0 && (npath[0] == '/' || npath[0] == '\\'))
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npath = npath.substr(1);
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@ -171,7 +182,8 @@ ResultVal<FileSys::VirtualFile> VfsDirectoryServiceWrapper::OpenFile(const std::
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return MakeResult<FileSys::VirtualFile>(file);
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}
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ResultVal<FileSys::VirtualDir> VfsDirectoryServiceWrapper::OpenDirectory(const std::string& path) {
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ResultVal<FileSys::VirtualDir> VfsDirectoryServiceWrapper::OpenDirectory(const std::string& path_) {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, path);
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if (dir == nullptr) {
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// TODO(DarkLordZach): Find a better error code for this
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@ -188,7 +200,8 @@ u64 VfsDirectoryServiceWrapper::GetFreeSpaceSize() const {
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}
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ResultVal<FileSys::EntryType> VfsDirectoryServiceWrapper::GetEntryType(
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const std::string& path) const {
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const std::string& path_) const {
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std::string path(FileUtil::SanitizePath(path_));
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auto dir = GetDirectoryRelativeWrapped(backing, FileUtil::GetParentPath(path));
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if (dir == nullptr)
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return FileSys::ERROR_PATH_NOT_FOUND;
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@ -272,9 +285,9 @@ void RegisterFileSystems() {
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sdmc_factory = nullptr;
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auto nand_directory = std::make_shared<FileSys::RealVfsDirectory>(
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FileUtil::GetUserPath(FileUtil::UserPath::NANDDir), FileSys::Mode::Write);
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FileUtil::GetUserPath(FileUtil::UserPath::NANDDir), FileSys::Mode::ReadWrite);
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auto sd_directory = std::make_shared<FileSys::RealVfsDirectory>(
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FileUtil::GetUserPath(FileUtil::UserPath::SDMCDir), FileSys::Mode::Write);
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FileUtil::GetUserPath(FileUtil::UserPath::SDMCDir), FileSys::Mode::ReadWrite);
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auto savedata = std::make_unique<FileSys::SaveDataFactory>(std::move(nand_directory));
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save_data_factory = std::move(savedata);
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