11 files changed, 74 insertions, 75 deletions

diff --git a/src/core/file_sys/disk_filesystem.cpp b/src/core/file_sys/disk_filesystem.cpp
index ca1323873..8aa0e0aa4 100644
--- a/src/core/file_sys/disk_filesystem.cpp
+++ b/src/core/file_sys/disk_filesystem.cpp
@@ -67,26 +67,32 @@ ResultCode Disk_FileSystem::DeleteFile(const std::string& path) const {
     return RESULT_SUCCESS;
 }
 
-ResultCode Disk_FileSystem::RenameFile(const Path& src_path, const Path& dest_path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+ResultCode Disk_FileSystem::RenameFile(const std::string& src_path,
+                                       const std::string& dest_path) const {
+    const std::string full_src_path = base_directory + src_path;
+    const std::string full_dest_path = base_directory + dest_path;
+
+    if (!FileUtil::Exists(full_src_path)) {
+        return ERROR_PATH_NOT_FOUND;
+    }
     // TODO(wwylele): Use correct error code
-    return ResultCode(-1);
+    return FileUtil::Rename(full_src_path, full_dest_path) ? RESULT_SUCCESS : ResultCode(-1);
 }
 
 ResultCode Disk_FileSystem::DeleteDirectory(const Path& path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode Disk_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
 
     std::string full_path = base_directory + path;
     if (size == 0) {
@@ -101,7 +107,7 @@ ResultCode Disk_FileSystem::CreateFile(const std::string& path, u64 size) const
         return RESULT_SUCCESS;
     }
 
-    LOG_ERROR(Service_FS, "Too large file");
+    NGLOG_ERROR(Service_FS, "Too large file");
     // TODO(Subv): Find out the correct error code
     return ResultCode(-1);
 }
@@ -114,13 +120,13 @@ ResultCode Disk_FileSystem::CreateDirectory(const std::string& path) const {
         return RESULT_SUCCESS;
     }
 
-    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating %s", full_path.c_str());
+    NGLOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", full_path);
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode Disk_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
@@ -140,7 +146,7 @@ ResultVal<std::unique_ptr<DirectoryBackend>> Disk_FileSystem::OpenDirectory(
 }
 
 u64 Disk_FileSystem::GetFreeSpaceSize() const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
     return 0;
 }
 
@@ -157,14 +163,14 @@ ResultVal<FileSys::EntryType> Disk_FileSystem::GetEntryType(const std::string& p
 }
 
 ResultVal<size_t> Disk_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
-    LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length);
+    NGLOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
     file->Seek(offset, SEEK_SET);
     return MakeResult<size_t>(file->ReadBytes(buffer, length));
 }
 
 ResultVal<size_t> Disk_Storage::Write(const u64 offset, const size_t length, const bool flush,
                                       const u8* buffer) const {
-    LOG_WARNING(Service_FS, "(STUBBED) called");
+    NGLOG_WARNING(Service_FS, "(STUBBED) called");
     file->Seek(offset, SEEK_SET);
     size_t written = file->WriteBytes(buffer, length);
     if (flush) {
@@ -198,8 +204,7 @@ u64 Disk_Directory::Read(const u64 count, Entry* entries) {
         const std::string& filename = file.virtualName;
         Entry& entry = entries[entries_read];
 
-        LOG_TRACE(Service_FS, "File %s: size=%llu dir=%d", filename.c_str(), file.size,
-                  file.isDirectory);
+        NGLOG_TRACE(Service_FS, "File {}: size={} dir={}", filename, file.size, file.isDirectory);
 
         // TODO(Link Mauve): use a proper conversion to UTF-16.
         for (size_t j = 0; j < FILENAME_LENGTH; ++j) {
diff --git a/src/core/file_sys/disk_filesystem.h b/src/core/file_sys/disk_filesystem.h
index 8f9e1145a..591e39fda 100644
--- a/src/core/file_sys/disk_filesystem.h
+++ b/src/core/file_sys/disk_filesystem.h
@@ -26,7 +26,7 @@ public:
     ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
                                                         Mode mode) const override;
     ResultCode DeleteFile(const std::string& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
+    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override;
     ResultCode DeleteDirectory(const Path& path) const override;
     ResultCode DeleteDirectoryRecursively(const Path& path) const override;
     ResultCode CreateFile(const std::string& path, u64 size) const override;
diff --git a/src/core/file_sys/filesystem.cpp b/src/core/file_sys/filesystem.cpp
index 82fdb3c46..87083878b 100644
--- a/src/core/file_sys/filesystem.cpp
+++ b/src/core/file_sys/filesystem.cpp
@@ -71,7 +71,7 @@ std::string Path::AsString() const {
     case Binary:
     default:
         // TODO(yuriks): Add assert
-        LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
+        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
         return {};
     }
 }
@@ -87,7 +87,7 @@ std::u16string Path::AsU16Str() const {
     case Invalid:
     case Binary:
         // TODO(yuriks): Add assert
-        LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
+        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
         return {};
     }
 
@@ -115,7 +115,7 @@ std::vector<u8> Path::AsBinary() const {
     case Invalid:
     default:
         // TODO(yuriks): Add assert
-        LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
+        NGLOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
         return {};
     }
 }
diff --git a/src/core/file_sys/filesystem.h b/src/core/file_sys/filesystem.h
index beefcfdb2..295a3133e 100644
--- a/src/core/file_sys/filesystem.h
+++ b/src/core/file_sys/filesystem.h
@@ -126,7 +126,8 @@ public:
      * @param dest_path Destination path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode RenameFile(const Path& src_path, const Path& dest_path) const = 0;
+    virtual ResultCode RenameFile(const std::string& src_path,
+                                  const std::string& dest_path) const = 0;
 
     /**
      * Rename a Directory specified by its path
diff --git a/src/core/file_sys/partition_filesystem.cpp b/src/core/file_sys/partition_filesystem.cpp
index 4a58a9291..808254ecc 100644
--- a/src/core/file_sys/partition_filesystem.cpp
+++ b/src/core/file_sys/partition_filesystem.cpp
@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
 #include <utility>
 #include "common/file_util.h"
 #include "common/logging/log.h"
@@ -40,7 +39,7 @@ Loader::ResultStatus PartitionFilesystem::Load(const std::string& file_path, siz
 
     Loader::ResultStatus result = Load(file_data);
     if (result != Loader::ResultStatus::Success)
-        LOG_ERROR(Service_FS, "Failed to load PFS from file %s!", file_path.c_str());
+        NGLOG_ERROR(Service_FS, "Failed to load PFS from file {}!", file_path);
 
     return result;
 }
diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp
index a6dcebcc3..1f5ded514 100644
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "core/file_sys/program_metadata.h"
@@ -22,7 +21,7 @@ Loader::ResultStatus ProgramMetadata::Load(const std::string& file_path) {
 
     Loader::ResultStatus result = Load(file_data);
     if (result != Loader::ResultStatus::Success)
-        LOG_ERROR(Service_FS, "Failed to load NPDM from file %s!", file_path.c_str());
+        NGLOG_ERROR(Service_FS, "Failed to load NPDM from file {}!", file_path);
 
     return result;
 }
@@ -77,14 +76,14 @@ u64 ProgramMetadata::GetFilesystemPermissions() const {
 }
 
 void ProgramMetadata::Print() const {
-    LOG_DEBUG(Service_FS, "Magic:                  %.4s", npdm_header.magic.data());
-    LOG_DEBUG(Service_FS, "Main thread priority:   0x%02x", npdm_header.main_thread_priority);
-    LOG_DEBUG(Service_FS, "Main thread core:       %u", npdm_header.main_thread_cpu);
-    LOG_DEBUG(Service_FS, "Main thread stack size: 0x%x bytes", npdm_header.main_stack_size);
-    LOG_DEBUG(Service_FS, "Process category:       %u", npdm_header.process_category);
-    LOG_DEBUG(Service_FS, "Flags:                  %02x", npdm_header.flags);
-    LOG_DEBUG(Service_FS, " > 64-bit instructions: %s",
-              npdm_header.has_64_bit_instructions ? "YES" : "NO");
+    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", npdm_header.magic.data());
+    NGLOG_DEBUG(Service_FS, "Main thread priority:   {:#04X}", npdm_header.main_thread_priority);
+    NGLOG_DEBUG(Service_FS, "Main thread core:       {}", npdm_header.main_thread_cpu);
+    NGLOG_DEBUG(Service_FS, "Main thread stack size: {:#X} bytes", npdm_header.main_stack_size);
+    NGLOG_DEBUG(Service_FS, "Process category:       {}", npdm_header.process_category);
+    NGLOG_DEBUG(Service_FS, "Flags:                  {:02X}", npdm_header.flags);
+    NGLOG_DEBUG(Service_FS, " > 64-bit instructions: {}",
+                npdm_header.has_64_bit_instructions ? "YES" : "NO");
 
     auto address_space = "Unknown";
     switch (npdm_header.address_space_type) {
@@ -96,19 +95,19 @@ void ProgramMetadata::Print() const {
         break;
     }
 
-    LOG_DEBUG(Service_FS, " > Address space:       %s\n", address_space);
+    NGLOG_DEBUG(Service_FS, " > Address space:       {}\n", address_space);
 
     // Begin ACID printing (potential perms, signed)
-    LOG_DEBUG(Service_FS, "Magic:                  %.4s", acid_header.magic.data());
-    LOG_DEBUG(Service_FS, "Flags:                  %02x", acid_header.flags);
-    LOG_DEBUG(Service_FS, " > Is Retail:           %s", acid_header.is_retail ? "YES" : "NO");
-    LOG_DEBUG(Service_FS, "Title ID Min:           %016" PRIX64, acid_header.title_id_min);
-    LOG_DEBUG(Service_FS, "Title ID Max:           %016" PRIX64, acid_header.title_id_max);
-    LOG_DEBUG(Service_FS, "Filesystem Access:      %016" PRIX64 "\n", acid_file_access.permissions);
+    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", acid_header.magic.data());
+    NGLOG_DEBUG(Service_FS, "Flags:                  {:02X}", acid_header.flags);
+    NGLOG_DEBUG(Service_FS, " > Is Retail:           {}", acid_header.is_retail ? "YES" : "NO");
+    NGLOG_DEBUG(Service_FS, "Title ID Min:           {:016X}", acid_header.title_id_min);
+    NGLOG_DEBUG(Service_FS, "Title ID Max:           {:016X}", acid_header.title_id_max);
+    NGLOG_DEBUG(Service_FS, "Filesystem Access:      {:016X}\n", acid_file_access.permissions);
 
     // Begin ACI0 printing (actual perms, unsigned)
-    LOG_DEBUG(Service_FS, "Magic:                  %.4s", aci_header.magic.data());
-    LOG_DEBUG(Service_FS, "Title ID:               %016" PRIX64, aci_header.title_id);
-    LOG_DEBUG(Service_FS, "Filesystem Access:      %016" PRIX64 "\n", aci_file_access.permissions);
+    NGLOG_DEBUG(Service_FS, "Magic:                  {:.4}", aci_header.magic.data());
+    NGLOG_DEBUG(Service_FS, "Title ID:               {:016X}", aci_header.title_id);
+    NGLOG_DEBUG(Service_FS, "Filesystem Access:      {:016X}\n", aci_file_access.permissions);
 }
 } // namespace FileSys
diff --git a/src/core/file_sys/romfs_factory.cpp b/src/core/file_sys/romfs_factory.cpp
index b21427948..dc7591aca 100644
--- a/src/core/file_sys/romfs_factory.cpp
+++ b/src/core/file_sys/romfs_factory.cpp
@@ -14,7 +14,7 @@ namespace FileSys {
 RomFS_Factory::RomFS_Factory(Loader::AppLoader& app_loader) {
     // Load the RomFS from the app
     if (Loader::ResultStatus::Success != app_loader.ReadRomFS(romfs_file, data_offset, data_size)) {
-        LOG_ERROR(Service_FS, "Unable to read RomFS!");
+        NGLOG_ERROR(Service_FS, "Unable to read RomFS!");
     }
 }
 
@@ -24,13 +24,13 @@ ResultVal<std::unique_ptr<FileSystemBackend>> RomFS_Factory::Open(const Path& pa
 }
 
 ResultCode RomFS_Factory::Format(const Path& path) {
-    LOG_ERROR(Service_FS, "Unimplemented Format archive %s", GetName().c_str());
+    NGLOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
     // TODO(bunnei): Find the right error code for this
     return ResultCode(-1);
 }
 
 ResultVal<ArchiveFormatInfo> RomFS_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
+    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
     // TODO(bunnei): Find the right error code for this
     return ResultCode(-1);
 }
diff --git a/src/core/file_sys/romfs_filesystem.cpp b/src/core/file_sys/romfs_filesystem.cpp
index 3d77e2d5f..8e2bce687 100644
--- a/src/core/file_sys/romfs_filesystem.cpp
+++ b/src/core/file_sys/romfs_filesystem.cpp
@@ -21,73 +21,72 @@ ResultVal<std::unique_ptr<StorageBackend>> RomFS_FileSystem::OpenFile(const std:
 }
 
 ResultCode RomFS_FileSystem::DeleteFile(const std::string& path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive ({}).", GetName());
     // TODO(bunnei): Use correct error code
     return ResultCode(-1);
 }
 
-ResultCode RomFS_FileSystem::RenameFile(const Path& src_path, const Path& dest_path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive (%s).",
-                 GetName().c_str());
+ResultCode RomFS_FileSystem::RenameFile(const std::string& src_path,
+                                        const std::string& dest_path) const {
+    NGLOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).",
+                   GetName());
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode RomFS_FileSystem::DeleteDirectory(const Path& path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
+                   GetName());
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode RomFS_FileSystem::DeleteDirectoryRecursively(const Path& path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive ({}).",
+                   GetName());
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode RomFS_FileSystem::CreateFile(const std::string& path, u64 size) const {
-    LOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive ({}).", GetName());
     // TODO(bunnei): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode RomFS_FileSystem::CreateDirectory(const std::string& path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive ({}).",
+                   GetName());
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultCode RomFS_FileSystem::RenameDirectory(const Path& src_path, const Path& dest_path) const {
-    LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive (%s).",
-                 GetName().c_str());
+    NGLOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive ({}).",
+                   GetName());
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultVal<std::unique_ptr<DirectoryBackend>> RomFS_FileSystem::OpenDirectory(
     const std::string& path) const {
-    LOG_WARNING(Service_FS, "Opening Directory in a ROMFS archive");
+    NGLOG_WARNING(Service_FS, "Opening Directory in a ROMFS archive");
     return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>());
 }
 
 u64 RomFS_FileSystem::GetFreeSpaceSize() const {
-    LOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
+    NGLOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
     return 0;
 }
 
 ResultVal<FileSys::EntryType> RomFS_FileSystem::GetEntryType(const std::string& path) const {
-    LOG_CRITICAL(Service_FS, "Called within an ROMFS archive (path %s).", path.c_str());
+    NGLOG_CRITICAL(Service_FS, "Called within an ROMFS archive (path {}).", path);
     // TODO(wwylele): Use correct error code
     return ResultCode(-1);
 }
 
 ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8* buffer) const {
-    LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length);
+    NGLOG_TRACE(Service_FS, "called offset={}, length={}", offset, length);
     romfs_file->Seek(data_offset + offset, SEEK_SET);
     size_t read_length = (size_t)std::min((u64)length, data_size - offset);
 
@@ -96,7 +95,7 @@ ResultVal<size_t> RomFS_Storage::Read(const u64 offset, const size_t length, u8*
 
 ResultVal<size_t> RomFS_Storage::Write(const u64 offset, const size_t length, const bool flush,
                                        const u8* buffer) const {
-    LOG_ERROR(Service_FS, "Attempted to write to ROMFS file");
+    NGLOG_ERROR(Service_FS, "Attempted to write to ROMFS file");
     // TODO(Subv): Find error code
     return MakeResult<size_t>(0);
 }
@@ -106,7 +105,7 @@ u64 RomFS_Storage::GetSize() const {
 }
 
 bool RomFS_Storage::SetSize(const u64 size) const {
-    LOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
+    NGLOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
     return false;
 }
 
diff --git a/src/core/file_sys/romfs_filesystem.h b/src/core/file_sys/romfs_filesystem.h
index 1b5cac409..ba9d85823 100644
--- a/src/core/file_sys/romfs_filesystem.h
+++ b/src/core/file_sys/romfs_filesystem.h
@@ -32,7 +32,7 @@ public:
     ResultVal<std::unique_ptr<StorageBackend>> OpenFile(const std::string& path,
                                                         Mode mode) const override;
     ResultCode DeleteFile(const std::string& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
+    ResultCode RenameFile(const std::string& src_path, const std::string& dest_path) const override;
     ResultCode DeleteDirectory(const Path& path) const override;
     ResultCode DeleteDirectoryRecursively(const Path& path) const override;
     ResultCode CreateFile(const std::string& path, u64 size) const override;
diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp
index 14868fed2..c1be8fee4 100644
--- a/src/core/file_sys/savedata_factory.cpp
+++ b/src/core/file_sys/savedata_factory.cpp
@@ -2,11 +2,9 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
 #include <memory>
 #include "common/common_types.h"
 #include "common/logging/log.h"
-#include "common/string_util.h"
 #include "core/core.h"
 #include "core/file_sys/disk_filesystem.h"
 #include "core/file_sys/savedata_factory.h"
@@ -30,7 +28,7 @@ ResultVal<std::unique_ptr<FileSystemBackend>> SaveData_Factory::Open(const Path&
 }
 
 ResultCode SaveData_Factory::Format(const Path& path) {
-    LOG_WARNING(Service_FS, "Format archive %s", GetName().c_str());
+    NGLOG_WARNING(Service_FS, "Format archive {}", GetName());
     // Create the save data directory.
     if (!FileUtil::CreateFullPath(GetFullPath())) {
         // TODO(Subv): Find the correct error code.
@@ -41,7 +39,7 @@ ResultCode SaveData_Factory::Format(const Path& path) {
 }
 
 ResultVal<ArchiveFormatInfo> SaveData_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
+    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
     // TODO(bunnei): Find the right error code for this
     return ResultCode(-1);
 }
@@ -50,8 +48,7 @@ std::string SaveData_Factory::GetFullPath() const {
     u64 title_id = Core::CurrentProcess()->program_id;
     // TODO(Subv): Somehow obtain this value.
     u32 user = 0;
-    return Common::StringFromFormat("%ssave/%016" PRIX64 "/%08X/", nand_directory.c_str(), title_id,
-                                    user);
+    return fmt::format("{}save/{:016X}/{:08X}/", nand_directory, title_id, user);
 }
 
 } // namespace FileSys
diff --git a/src/core/file_sys/sdmc_factory.cpp b/src/core/file_sys/sdmc_factory.cpp
index 00e80d2a7..59ac3e0be 100644
--- a/src/core/file_sys/sdmc_factory.cpp
+++ b/src/core/file_sys/sdmc_factory.cpp
@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
 #include <memory>
 #include "common/common_types.h"
 #include "common/logging/log.h"
@@ -26,13 +25,13 @@ ResultVal<std::unique_ptr<FileSystemBackend>> SDMC_Factory::Open(const Path& pat
 }
 
 ResultCode SDMC_Factory::Format(const Path& path) {
-    LOG_ERROR(Service_FS, "Unimplemented Format archive %s", GetName().c_str());
+    NGLOG_ERROR(Service_FS, "Unimplemented Format archive {}", GetName());
     // TODO(Subv): Find the right error code for this
     return ResultCode(-1);
 }
 
 ResultVal<ArchiveFormatInfo> SDMC_Factory::GetFormatInfo(const Path& path) const {
-    LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
+    NGLOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
     // TODO(bunnei): Find the right error code for this
     return ResultCode(-1);
 }