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[nce, fs] tico support, fix FS bug that would nuke entire 'switch' folder (#4086)

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Contains the minimal set of functionalities to allow tico installer succeed, and tico work normally EXCEPT for game launching (which me or someone else will investigate later)

First three commits are from PR 4012.

The other six, kinda dizzy to explain each one. All were implemented based on tico source, switchbrew and libnx.
Hopefully the commit messages will do.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4086
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: Maufeat <sahyno1996@gmail.com>
This commit is contained in:
xbzk 2026-07-23 21:59:55 +02:00 • committed by crueter
parent 89004124a5
commit b85f289048
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GPG key ID: 425ACD2D4830EBC6
14 changed files with 502 additions and 22 deletions
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48
src/core/hle/service/filesystem/filesystem.cpp
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@ -43,6 +43,16 @@ static FileSys::VirtualDir GetDirectoryRelativeWrapped(FileSys::VirtualDir base,
return base->GetDirectoryRelative(dir_name);
}
static std::string_view GetGuestParentPath(std::string_view path) {
const auto name_index = path.find_last_of("\\/");
return name_index == std::string_view::npos ? std::string_view{} : path.substr(0, name_index);
}
static std::string_view GetGuestFilename(std::string_view path) {
const auto name_index = path.find_last_of("\\/");
return name_index == std::string_view::npos ? path : path.substr(name_index + 1);
}
VfsDirectoryServiceWrapper::VfsDirectoryServiceWrapper(FileSys::VirtualDir backing_)
: backing(std::move(backing_)) {}
@ -83,11 +93,12 @@ Result VfsDirectoryServiceWrapper::DeleteFile(const std::string& path_) const {
return ResultSuccess;
}
auto dir = GetDirectoryRelativeWrapped(backing, Common::FS::GetParentPath(path));
if (dir == nullptr || dir->GetFile(Common::FS::GetFilename(path)) == nullptr) {
const auto filename = GetGuestFilename(path);
auto dir = GetDirectoryRelativeWrapped(backing, GetGuestParentPath(path));
if (filename.empty() || dir == nullptr || dir->GetFile(filename) == nullptr) {
return FileSys::ResultPathNotFound;
}
if (!dir->DeleteFile(Common::FS::GetFilename(path))) {
if (!dir->DeleteFile(filename)) {
// TODO(DarkLordZach): Find a better error code for this
return ResultUnknown;
}
@ -117,8 +128,19 @@ Result VfsDirectoryServiceWrapper::CreateDirectory(const std::string& path_) con
Result VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path_) const {
std::string path(Common::FS::SanitizePath(path_));
auto dir = GetDirectoryRelativeWrapped(backing, Common::FS::GetParentPath(path));
if (!dir->DeleteSubdirectory(Common::FS::GetFilename(path))) {
const auto dirname = GetGuestFilename(path);
auto dir = GetDirectoryRelativeWrapped(backing, GetGuestParentPath(path));
FileSys::VirtualDir target{};
if (!dirname.empty() && dir != nullptr) {
target = dir->GetSubdirectory(dirname);
}
if (target == nullptr) {
return FileSys::ResultPathNotFound;
}
if (!target->GetFiles().empty() || !target->GetSubdirectories().empty()) {
return ResultUnknown;
}
if (!dir->DeleteSubdirectory(dirname)) {
// TODO(DarkLordZach): Find a better error code for this
return ResultUnknown;
}
@ -127,8 +149,12 @@ Result VfsDirectoryServiceWrapper::DeleteDirectory(const std::string& path_) con
Result VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string& path_) const {
std::string path(Common::FS::SanitizePath(path_));
auto dir = GetDirectoryRelativeWrapped(backing, Common::FS::GetParentPath(path));
if (!dir->DeleteSubdirectoryRecursive(Common::FS::GetFilename(path))) {
const auto dirname = GetGuestFilename(path);
auto dir = GetDirectoryRelativeWrapped(backing, GetGuestParentPath(path));
if (dirname.empty() || dir == nullptr || dir->GetSubdirectory(dirname) == nullptr) {
return FileSys::ResultPathNotFound;
}
if (!dir->DeleteSubdirectoryRecursive(dirname)) {
// TODO(DarkLordZach): Find a better error code for this
return ResultUnknown;
}
@ -137,9 +163,13 @@ Result VfsDirectoryServiceWrapper::DeleteDirectoryRecursively(const std::string&
Result VfsDirectoryServiceWrapper::CleanDirectoryRecursively(const std::string& path) const {
const std::string sanitized_path(Common::FS::SanitizePath(path));
auto dir = GetDirectoryRelativeWrapped(backing, Common::FS::GetParentPath(sanitized_path));
const auto dirname = GetGuestFilename(sanitized_path);
auto dir = GetDirectoryRelativeWrapped(backing, GetGuestParentPath(sanitized_path));
if (!dir->CleanSubdirectoryRecursive(Common::FS::GetFilename(sanitized_path))) {
if (dirname.empty() || dir == nullptr || dir->GetSubdirectory(dirname) == nullptr) {
return FileSys::ResultPathNotFound;
}
if (!dir->CleanSubdirectoryRecursive(dirname)) {
// TODO(DarkLordZach): Find a better error code for this
return ResultUnknown;
}