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Ignore case for game files when on a unix system. Implemented as described in https://github.com/cemu-project/Cemu/issues/107#issuecomment-1231171415

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goeiecool9999 2022-09-07 15:18:09 +02:00 • committed by klaas
parent e20bfd00ec
commit 8dd61c3409
1 changed files with 64 additions and 3 deletions
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65
src/Cafe/Filesystem/fscDeviceHostFS.cpp
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@ -218,13 +218,74 @@ FSCVirtualFile* FSCVirtualFile_Host::OpenFile(const fs::path& path, FSC_ACCESS_F
/* Device implementation */
class fscDeviceHostFSC : public fscDeviceC
{
class fscDeviceHostFSC : public fscDeviceC {
public:
FSCVirtualFile* fscDeviceOpenByPathIgnoreCase(std::wstring_view pathString, FSC_ACCESS_FLAG accessFlags, sint32* fscStatus)
{
// todo: implement caching.
*fscStatus = FSC_STATUS_OK;
// explore directories recursively and find the matching cases.
std::filesystem::path path = pathString;
std::filesystem::path relPath = path.relative_path();
std::filesystem::path correctedPath = path.root_path();
// helper function to convert a path's alphabet characters to lowercase.
auto static lowercase_path = [](std::filesystem::path const & path)
{
std::wstring string = path.wstring();
std::transform(string.begin(), string.end(), string.begin(), [](const auto& item) {
if (std::isalpha(item))
return (wchar_t)std::tolower(item);
return item;
});
return string;
};
bool found;
for (auto const &it : relPath)
{
found = false;
std::wcout << correctedPath << std::endl;
for (auto const& dir_entry : std::filesystem::directory_iterator{correctedPath})
{
std::wcout << dir_entry << std::endl;
std::filesystem::path entry_name = dir_entry.path().filename();
if (lowercase_path(entry_name) == lowercase_path(it))
{
correctedPath /= entry_name;
found = true;
break;
}
}
if (!found)
break;
}
if(!found)
{
*fscStatus = FSC_STATUS_FILE_NOT_FOUND;
return nullptr;
}
std::wcout << correctedPath << std::endl;
FSCVirtualFile* vf = FSCVirtualFile_Host::OpenFile(correctedPath, accessFlags, *fscStatus);
return vf;
}
FSCVirtualFile* fscDeviceOpenByPath(std::wstring_view path, FSC_ACCESS_FLAG accessFlags, void* ctx, sint32* fscStatus) override
{
*fscStatus = FSC_STATUS_OK;
FSCVirtualFile* vf = FSCVirtualFile_Host::OpenFile(path, accessFlags, *fscStatus);
#ifdef BOOST_OS_UNIX
// failed to open file. maybe the case is different?
if (!vf)
{
vf = fscDeviceOpenByPathIgnoreCase(path, accessFlags, fscStatus);
}
#endif
cemu_assert_debug((bool)vf == (*fscStatus == FSC_STATUS_OK));
return vf;
}