file_util: Add a function to update the user path

Added a default value when sdmc and nand are empty

src/citra_qt/configuration/config.cpp

@@ -306,7 +306,7 @@ void Config::ReadDataStorageValues() {
     Settings::values.nand_dir = ReadSetting(QStringLiteral("nand_directory"), QString::fromStdString(nan_dir))
                                     .toString()
                                     .toStdString();
-        std::string sdmc_dir = FileUtil::GetUserPath(FileUtil::UserPath::SDMCDir);
+    std::string sdmc_dir = FileUtil::GetUserPath(FileUtil::UserPath::SDMCDir);
     Settings::values.sdmc_dir = ReadSetting(QStringLiteral("sdmc_directory"), QString::fromStdString(sdmc_dir))
                                     .toString()
                                     .toStdString();

src/common/file_util.cpp

@@ -12,6 +12,7 @@
 #include "common/common_paths.h"
 #include "common/file_util.h"
 #include "common/logging/log.h"
+#include "core/settings.h"
 
 #ifdef _WIN32
 #include <windows.h>
@@ -716,8 +717,13 @@ void SetUserPath(const std::string& path) {
         }
 #endif
     }
-    g_paths.emplace(UserPath::SDMCDir, user_path + SDMC_DIR DIR_SEP);
+
-    g_paths.emplace(UserPath::NANDDir, user_path + NAND_DIR DIR_SEP);
+    g_paths.emplace(UserPath::SDMCDir, !Settings::values.sdmc_dir.empty()
+                                           ? Settings::values.sdmc_dir
+                                           : user_path + SDMC_DIR DIR_SEP);
+    g_paths.emplace(UserPath::NANDDir, !Settings::values.nand_dir.empty()
+                                           ? Settings::values.nand_dir
+                                           : user_path + NAND_DIR DIR_SEP);
     g_paths.emplace(UserPath::SysDataDir, user_path + SYSDATA_DIR DIR_SEP);
     // TODO: Put the logs in a better location for each OS
     g_paths.emplace(UserPath::LogDir, user_path + LOG_DIR DIR_SEP);
@@ -762,6 +768,11 @@ const std::string& GetUserPath(UserPath path) {
         SetUserPath();
     return g_paths[path];
 }
+
+const void UpdateUserPath(UserPath path, const std::string& filename) {
+    g_paths[path] = filename + DIR_SEP;
+}
+
 std::size_t WriteStringToFile(bool text_file, const std::string& filename, std::string_view str) {
     return IOFile(filename, text_file ? "w" : "wb").WriteString(str);
 }

src/common/file_util.h

@@ -186,6 +186,9 @@ void SetCurrentRomPath(const std::string& path);
 // directory. To be used in "multi-user" mode (that is, installed).
 [[nodiscard]] const std::string& GetUserPath(UserPath path);
 
+// Update the Global Path with the new value
+const void UpdateUserPath(UserPath path, const std::string& filename);
+
 // Returns the path to where the sys file are
 [[nodiscard]] std::string GetSysDirectory();
 

src/core/settings.cpp

@@ -118,6 +118,8 @@ void LogSettings() {
     log_setting("Camera_OuterLeftConfig", values.camera_config[OuterLeftCamera]);
     log_setting("Camera_OuterLeftFlip", values.camera_flip[OuterLeftCamera]);
     log_setting("DataStorage_UseVirtualSd", values.use_virtual_sd);
+    log_setting("DataStorage_SdmcDir", values.sdmc_dir);
+    log_setting("DataStorage_NandDir", values.nand_dir);
     log_setting("System_IsNew3ds", values.is_new_3ds);
     log_setting("System_RegionValue", values.region_value);
     log_setting("Debugging_UseGdbstub", values.use_gdbstub);