From c0b230b742f946d7148d8cdc7e521b9ed8f3ebdc Mon Sep 17 00:00:00 2001
From: Evil Eye <malusluminis@hotmail.com>
Date: Mon, 7 Jul 2025 16:32:42 +0200
Subject: [PATCH] Remove global config on Windows

---
 apps/openmw/engine.cpp                    | 11 +++--
 components/files/androidpath.cpp          |  4 +-
 components/files/androidpath.hpp          |  5 +-
 components/files/configurationmanager.cpp | 59 +++++++++++++----------
 components/files/configurationmanager.hpp |  9 +---
 components/files/fixedpath.hpp            |  8 +--
 components/files/linuxpath.cpp            |  4 +-
 components/files/linuxpath.hpp            |  5 +-
 components/files/macospath.cpp            |  4 +-
 components/files/macospath.hpp            |  5 +-
 components/files/qtconfigpath.hpp         | 10 ----
 components/files/windowspath.cpp          | 18 ++-----
 components/files/windowspath.hpp          |  7 +--
 13 files changed, 67 insertions(+), 82 deletions(-)

diff --git a/apps/openmw/engine.cpp b/apps/openmw/engine.cpp
index 244c458f46..b1f2457935 100644
--- a/apps/openmw/engine.cpp
+++ b/apps/openmw/engine.cpp
@@ -781,7 +781,6 @@ void OMW::Engine::prepareEngine()
 
     const auto userdefault = mCfgMgr.getUserConfigPath() / "gamecontrollerdb.txt";
     const auto localdefault = mCfgMgr.getLocalPath() / "gamecontrollerdb.txt";
-    const auto globaldefault = mCfgMgr.getGlobalPath() / "gamecontrollerdb.txt";
 
     std::filesystem::path userGameControllerdb;
     if (std::filesystem::exists(userdefault))
@@ -790,9 +789,13 @@ void OMW::Engine::prepareEngine()
     std::filesystem::path gameControllerdb;
     if (std::filesystem::exists(localdefault))
         gameControllerdb = localdefault;
-    else if (std::filesystem::exists(globaldefault))
-        gameControllerdb = globaldefault;
-    // else if it doesn't exist, pass in an empty string
+    else if (mCfgMgr.getGlobalPath())
+    {
+        const auto globaldefault = *mCfgMgr.getGlobalPath() / "gamecontrollerdb.txt";
+        if (std::filesystem::exists(globaldefault))
+            gameControllerdb = globaldefault;
+    }
+    // else if it doesn't exist, pass in an empty path
 
     // gui needs our shaders path before everything else
     mResourceSystem->getSceneManager()->setShaderPath(mResDir / "shaders");
diff --git a/components/files/androidpath.cpp b/components/files/androidpath.cpp
index 0a6cc161f3..a1cbd99fe8 100644
--- a/components/files/androidpath.cpp
+++ b/components/files/androidpath.cpp
@@ -49,7 +49,7 @@ namespace Files
 
     // /data/data/com.libopenmw.openmw/files/config
     // (note the addition of "files")
-    std::filesystem::path AndroidPath::getGlobalConfigPath() const
+    std::optional<std::filesystem::path> AndroidPath::getGlobalConfigPath() const
     {
         return std::filesystem::path(g_path_global) / "files" / "config";
     }
@@ -61,7 +61,7 @@ namespace Files
 
     // /sdcard/Android/data/com.libopenmw.openmw
     // (so that the data is at /sdcard/Android/data/com.libopenmw.openmw/data)
-    std::filesystem::path AndroidPath::getGlobalDataPath() const
+    std::optional<std::filesystem::path> AndroidPath::getGlobalDataPath() const
     {
         return std::filesystem::path(g_path_user);
     }
diff --git a/components/files/androidpath.hpp b/components/files/androidpath.hpp
index 5a10efe798..d1ac1289be 100644
--- a/components/files/androidpath.hpp
+++ b/components/files/androidpath.hpp
@@ -4,6 +4,7 @@
 #if defined(__ANDROID__)
 
 #include <filesystem>
+#include <optional>
 /**
  * \namespace Files
  */
@@ -25,7 +26,7 @@ namespace Files
         /**
          * \brief Return path to the global (system) directory where config files can be placed.
          */
-        std::filesystem::path getGlobalConfigPath() const;
+        std::optional<std::filesystem::path> getGlobalConfigPath() const;
 
         /**
          * \brief Return path to the runtime configuration directory which is the
@@ -36,7 +37,7 @@ namespace Files
         /**
          * \brief Return path to the global (system) directory where game files can be placed.
          */
-        std::filesystem::path getGlobalDataPath() const;
+        std::optional<std::filesystem::path> getGlobalDataPath() const;
 
         /**
          * \brief
diff --git a/components/files/configurationmanager.cpp b/components/files/configurationmanager.cpp
index 7b4cbac864..f13a2bc748 100644
--- a/components/files/configurationmanager.cpp
+++ b/components/files/configurationmanager.cpp
@@ -18,37 +18,43 @@ namespace Files
 
     namespace bpo = boost::program_options;
 
+    namespace
+    {
 #if defined(_WIN32) || defined(__WINDOWS__)
-    static const char* const applicationName = "OpenMW";
+        constexpr auto applicationName = "OpenMW";
 #else
-    static const char* const applicationName = "openmw";
+        constexpr auto applicationName = "openmw";
 #endif
 
-    static constexpr auto localToken = u8"?local?";
-    static constexpr auto userConfigToken = u8"?userconfig?";
-    static constexpr auto userDataToken = u8"?userdata?";
-    static constexpr auto globalToken = u8"?global?";
+        constexpr std::u8string_view localToken = u8"?local?";
+        constexpr std::u8string_view userConfigToken = u8"?userconfig?";
+        constexpr std::u8string_view userDataToken = u8"?userdata?";
+        constexpr std::u8string_view globalToken = u8"?global?";
+
+        const std::filesystem::path* getTokenPath(std::u8string_view token, const Files::FixedPath<>& fixedPath)
+        {
+            if (token == localToken)
+                return &fixedPath.getLocalPath();
+            else if (token == userConfigToken)
+                return &fixedPath.getUserConfigPath();
+            else if (token == userDataToken)
+                return &fixedPath.getUserDataPath();
+            else if (token == globalToken && fixedPath.getGlobalDataPath())
+                return &*fixedPath.getGlobalDataPath();
+            return nullptr;
+        }
+    }
 
     ConfigurationManager::ConfigurationManager(bool silent)
         : mFixedPath(applicationName)
         , mSilent(silent)
     {
-        setupTokensMapping();
-
         // Initialize with fixed paths, will be overridden in `readConfiguration`.
         mUserDataPath = mFixedPath.getUserDataPath();
         mScreenshotPath = mFixedPath.getUserDataPath() / "screenshots";
     }
 
-    ConfigurationManager::~ConfigurationManager() {}
-
-    void ConfigurationManager::setupTokensMapping()
-    {
-        mTokensMapping.insert(std::make_pair(localToken, &FixedPath<>::getLocalPath));
-        mTokensMapping.insert(std::make_pair(userConfigToken, &FixedPath<>::getUserConfigPath));
-        mTokensMapping.insert(std::make_pair(userDataToken, &FixedPath<>::getUserDataPath));
-        mTokensMapping.insert(std::make_pair(globalToken, &FixedPath<>::getGlobalDataPath));
-    }
+    ConfigurationManager::~ConfigurationManager() = default;
 
     static bool hasReplaceConfig(const bpo::variables_map& variables)
     {
@@ -74,10 +80,10 @@ namespace Files
         std::optional<bpo::variables_map> config = loadConfig(mFixedPath.getLocalPath(), description);
         if (config)
             mActiveConfigPaths.push_back(mFixedPath.getLocalPath());
-        else
+        else if (mFixedPath.getGlobalConfigPath())
         {
-            mActiveConfigPaths.push_back(mFixedPath.getGlobalConfigPath());
-            config = loadConfig(mFixedPath.getGlobalConfigPath(), description);
+            mActiveConfigPaths.push_back(*mFixedPath.getGlobalConfigPath());
+            config = loadConfig(*mFixedPath.getGlobalConfigPath(), description);
         }
         if (!config)
         {
@@ -305,15 +311,16 @@ namespace Files
         const auto pos = str.find('?', 1);
         if (pos != std::u8string::npos && pos != 0)
         {
-            auto tokenIt = mTokensMapping.find(str.substr(0, pos + 1));
-            if (tokenIt != mTokensMapping.end())
+            std::u8string_view view(str);
+            auto token = view.substr(0, pos + 1);
+            if (const std::filesystem::path* tokenPath = getTokenPath(token, mFixedPath))
             {
-                auto tempPath(((mFixedPath).*(tokenIt->second))());
-                if (pos < str.length() - 1)
+                auto tempPath(*tokenPath);
+                if (pos < view.length() - 1)
                 {
                     // There is something after the token, so we should
                     // append it to the path
-                    tempPath /= str.substr(pos + 1, str.length() - pos);
+                    tempPath /= view.substr(pos + 1, view.length() - pos);
                 }
 
                 path = std::move(tempPath);
@@ -391,7 +398,7 @@ namespace Files
         return std::nullopt;
     }
 
-    const std::filesystem::path& ConfigurationManager::getGlobalPath() const
+    const std::optional<std::filesystem::path>& ConfigurationManager::getGlobalPath() const
     {
         return mFixedPath.getGlobalConfigPath();
     }
diff --git a/components/files/configurationmanager.hpp b/components/files/configurationmanager.hpp
index 2e10f21252..54bdbac3f4 100644
--- a/components/files/configurationmanager.hpp
+++ b/components/files/configurationmanager.hpp
@@ -44,7 +44,7 @@ namespace Files
             boost::program_options::variables_map& variables, const std::filesystem::path& basePath) const;
 
         /**< Fixed paths */
-        const std::filesystem::path& getGlobalPath() const;
+        const std::optional<std::filesystem::path>& getGlobalPath() const;
         const std::filesystem::path& getLocalPath() const;
 
         const std::filesystem::path& getUserConfigPath() const;
@@ -62,17 +62,12 @@ namespace Files
     private:
         typedef Files::FixedPath<> FixedPathType;
 
-        typedef const std::filesystem::path& (FixedPathType::*path_type_f)() const;
-        typedef std::map<std::u8string, path_type_f> TokensMappingContainer;
-
         std::optional<boost::program_options::variables_map> loadConfig(
             const std::filesystem::path& path, const boost::program_options::options_description& description) const;
 
         void addExtraConfigDirs(
             std::stack<std::filesystem::path>& dirs, const boost::program_options::variables_map& variables) const;
 
-        void setupTokensMapping();
-
         std::vector<std::filesystem::path> mActiveConfigPaths;
 
         FixedPathType mFixedPath;
@@ -80,8 +75,6 @@ namespace Files
         std::filesystem::path mUserDataPath;
         std::filesystem::path mScreenshotPath;
 
-        TokensMappingContainer mTokensMapping;
-
         bool mSilent;
     };
 
diff --git a/components/files/fixedpath.hpp b/components/files/fixedpath.hpp
index 76e8574fa7..7eef1486ea 100644
--- a/components/files/fixedpath.hpp
+++ b/components/files/fixedpath.hpp
@@ -80,7 +80,7 @@ namespace Files
         /**
          * \brief Return path pointing to the global (system) configuration directory.
          */
-        const std::filesystem::path& getGlobalConfigPath() const { return mGlobalConfigPath; }
+        const std::optional<std::filesystem::path>& getGlobalConfigPath() const { return mGlobalConfigPath; }
 
         /**
          * \brief Return path pointing to the directory where application was started.
@@ -89,7 +89,7 @@ namespace Files
 
         const std::filesystem::path& getInstallPath() const { return mInstallPath; }
 
-        const std::filesystem::path& getGlobalDataPath() const { return mGlobalDataPath; }
+        const std::optional<std::filesystem::path>& getGlobalDataPath() const { return mGlobalDataPath; }
 
         const std::filesystem::path& getCachePath() const { return mCachePath; }
 
@@ -98,10 +98,10 @@ namespace Files
 
         std::filesystem::path mUserConfigPath; /**< User path  */
         std::filesystem::path mUserDataPath;
-        std::filesystem::path mGlobalConfigPath; /**< Global path */
+        std::optional<std::filesystem::path> mGlobalConfigPath; /**< Global path */
         std::filesystem::path mLocalPath; /**< It is the same directory where application was run */
 
-        std::filesystem::path mGlobalDataPath; /**< Global application data path */
+        std::optional<std::filesystem::path> mGlobalDataPath; /**< Global application data path */
 
         std::filesystem::path mCachePath;
 
diff --git a/components/files/linuxpath.cpp b/components/files/linuxpath.cpp
index 2e74948fff..3a22f505d9 100644
--- a/components/files/linuxpath.cpp
+++ b/components/files/linuxpath.cpp
@@ -67,7 +67,7 @@ namespace Files
         return getEnv("XDG_CACHE_HOME", getUserHome() / ".cache") / mName;
     }
 
-    std::filesystem::path LinuxPath::getGlobalConfigPath() const
+    std::optional<std::filesystem::path> LinuxPath::getGlobalConfigPath() const
     {
         std::filesystem::path globalPath(GLOBAL_CONFIG_PATH);
         return globalPath / mName;
@@ -94,7 +94,7 @@ namespace Files
         return localPath;
     }
 
-    std::filesystem::path LinuxPath::getGlobalDataPath() const
+    std::optional<std::filesystem::path> LinuxPath::getGlobalDataPath() const
     {
         std::filesystem::path globalDataPath(GLOBAL_DATA_PATH);
         return globalDataPath / mName;
diff --git a/components/files/linuxpath.hpp b/components/files/linuxpath.hpp
index 36bbb47bf2..b1ca290e4d 100644
--- a/components/files/linuxpath.hpp
+++ b/components/files/linuxpath.hpp
@@ -4,6 +4,7 @@
 #if defined(__linux__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__)
 
 #include <filesystem>
+#include <optional>
 
 /**
  * \namespace Files
@@ -28,7 +29,7 @@ namespace Files
         /**
          * \brief Return path to the global (system) directory where config files can be placed.
          */
-        std::filesystem::path getGlobalConfigPath() const;
+        std::optional<std::filesystem::path> getGlobalConfigPath() const;
 
         /**
          * \brief Return path to the runtime configuration directory which is the
@@ -39,7 +40,7 @@ namespace Files
         /**
          * \brief Return path to the global (system) directory where game files can be placed.
          */
-        std::filesystem::path getGlobalDataPath() const;
+        std::optional<std::filesystem::path> getGlobalDataPath() const;
 
         /**
          * \brief
diff --git a/components/files/macospath.cpp b/components/files/macospath.cpp
index 191f3b15a6..855a94f8bc 100644
--- a/components/files/macospath.cpp
+++ b/components/files/macospath.cpp
@@ -82,7 +82,7 @@ namespace Files
         return userPath / mName;
     }
 
-    std::filesystem::path MacOsPath::getGlobalConfigPath() const
+    std::optional<std::filesystem::path> MacOsPath::getGlobalConfigPath() const
     {
         std::filesystem::path globalPath("/Library/Preferences/");
         return globalPath / mName;
@@ -100,7 +100,7 @@ namespace Files
         return getBinaryPath().parent_path().parent_path() / "Resources";
     }
 
-    std::filesystem::path MacOsPath::getGlobalDataPath() const
+    std::optional<std::filesystem::path> MacOsPath::getGlobalDataPath() const
     {
         std::filesystem::path globalDataPath("/Library/Application Support/");
         return globalDataPath / mName;
diff --git a/components/files/macospath.hpp b/components/files/macospath.hpp
index c1eeaf1dab..ebe8584fb8 100644
--- a/components/files/macospath.hpp
+++ b/components/files/macospath.hpp
@@ -4,6 +4,7 @@
 #if defined(macintosh) || defined(Macintosh) || defined(__APPLE__) || defined(__MACH__)
 
 #include <filesystem>
+#include <optional>
 
 /**
  * \namespace Files
@@ -32,7 +33,7 @@ namespace Files
          *
          * \return std::filesystem::path
          */
-        std::filesystem::path getGlobalConfigPath() const;
+        std::optional<std::filesystem::path> getGlobalConfigPath() const;
 
         /**
          * \brief Return path to the runtime directory which is the
@@ -54,7 +55,7 @@ namespace Files
          *
          * \return std::filesystem::path
          */
-        std::filesystem::path getGlobalDataPath() const;
+        std::optional<std::filesystem::path> getGlobalDataPath() const;
 
         std::filesystem::path getInstallPath() const;
 
diff --git a/components/files/qtconfigpath.hpp b/components/files/qtconfigpath.hpp
index 16e0499cd5..a2154ce110 100644
--- a/components/files/qtconfigpath.hpp
+++ b/components/files/qtconfigpath.hpp
@@ -8,21 +8,11 @@
 
 namespace Files
 {
-    inline QString getLocalConfigPathQString(const Files::ConfigurationManager& cfgMgr)
-    {
-        return Files::pathToQString(cfgMgr.getLocalPath() / openmwCfgFile);
-    }
-
     inline QString getUserConfigPathQString(const Files::ConfigurationManager& cfgMgr)
     {
         return Files::pathToQString(cfgMgr.getUserConfigPath() / openmwCfgFile);
     }
 
-    inline QString getGlobalConfigPathQString(const Files::ConfigurationManager& cfgMgr)
-    {
-        return Files::pathToQString(cfgMgr.getGlobalPath() / openmwCfgFile);
-    }
-
     inline QStringList getActiveConfigPathsQString(const Files::ConfigurationManager& cfgMgr)
     {
         const auto& activePaths = cfgMgr.getActiveConfigPaths();
diff --git a/components/files/windowspath.cpp b/components/files/windowspath.cpp
index 77faa23131..2c4215fffb 100644
--- a/components/files/windowspath.cpp
+++ b/components/files/windowspath.cpp
@@ -50,23 +50,11 @@ namespace Files
         return getUserConfigPath();
     }
 
-    std::filesystem::path WindowsPath::getGlobalConfigPath() const
+    std::optional<std::filesystem::path> WindowsPath::getGlobalConfigPath() const
     {
         // The concept of a global config path is absurd on Windows.
         // Always use local config instead.
-        // The virtual base class requires that we provide this, though.
-        std::filesystem::path globalPath = std::filesystem::current_path();
-
-        PWSTR cString;
-        HRESULT result = SHGetKnownFolderPath(FOLDERID_ProgramFiles, 0, nullptr, &cString);
-        if (SUCCEEDED(result))
-            globalPath = std::filesystem::path(cString);
-        else
-            Log(Debug::Error) << "Error " << result << " when getting Program Files path";
-
-        CoTaskMemFree(cString);
-
-        return globalPath / mName;
+        return {};
     }
 
     std::filesystem::path WindowsPath::getLocalPath() const
@@ -84,7 +72,7 @@ namespace Files
         return localPath;
     }
 
-    std::filesystem::path WindowsPath::getGlobalDataPath() const
+    std::optional<std::filesystem::path> WindowsPath::getGlobalDataPath() const
     {
         return getGlobalConfigPath();
     }
diff --git a/components/files/windowspath.hpp b/components/files/windowspath.hpp
index 380e831b20..624d1c071d 100644
--- a/components/files/windowspath.hpp
+++ b/components/files/windowspath.hpp
@@ -4,6 +4,7 @@
 #if defined(_WIN32) || defined(__WINDOWS__)
 
 #include <filesystem>
+#include <optional>
 
 /**
  * \namespace Files
@@ -34,11 +35,11 @@ namespace Files
         std::filesystem::path getUserDataPath() const;
 
         /**
-         * \brief Returns "X:\Program Files\"
+         * \brief Returns nothing
          *
          * \return std::filesystem::path
          */
-        std::filesystem::path getGlobalConfigPath() const;
+        std::optional<std::filesystem::path> getGlobalConfigPath() const;
 
         /**
          * \brief Return local path which is a location where
@@ -60,7 +61,7 @@ namespace Files
          *
          * \return std::filesystem::path
          */
-        std::filesystem::path getGlobalDataPath() const;
+        std::optional<std::filesystem::path> getGlobalDataPath() const;
 
         /**
          * \brief Gets the path of the installed Morrowind version if there is one.