Fluorine Manager: full Linux port of Mod Organizer 2

Complete native Linux port with FUSE-based virtual filesystem,
Proton/umu-run integration, and Flatpak packaging.

Key features:
- FUSE VFS replacing Windows USVFS (in-process + standalone helper for Flatpak)
- Proton/GE-Proton/umu-run launcher with env var forwarding
- Flatpak support (sandbox-aware VFS, NXM handler, umu-run)
- Wine prefix management UI
- Case-insensitive path resolution for Linux filesystems
- QSettings-safe INI handling (avoids Bethesda INI corruption)
- Portable instance support with auto-generated launcher scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 99 insertions, 0 deletions

diff --git a/libs/usvfs/src/shared/exceptionex.h b/libs/usvfs/src/shared/exceptionex.h
new file mode 100644
index 0000000..4c298a5
--- /dev/null
+++ b/libs/usvfs/src/shared/exceptionex.h
@@ -0,0 +1,99 @@
+/*
+Userspace Virtual Filesystem
+
+Copyright (C) 2015 Sebastian Herbord. All rights reserved.
+
+This file is part of usvfs.
+
+usvfs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+usvfs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with usvfs. If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include "logging.h"
+#include <boost/exception/all.hpp>
+#include <stdexcept>
+
+typedef boost::error_info<struct tag_message, DWORD> ex_win_errcode;
+typedef boost::error_info<struct tag_message, std::string> ex_msg;
+
+struct std_boost_exception : virtual boost::exception, virtual std::exception
+{
+  const char* what() const noexcept override
+  {
+    return boost::diagnostic_information_what(*this);
+  }
+};
+
+struct incompatibility_error : std_boost_exception
+{};
+struct usage_error : std_boost_exception
+{};
+struct data_error : std_boost_exception
+{};
+struct file_not_found_error : std_boost_exception
+{};
+struct timeout_error : std_boost_exception
+{};
+struct unknown_error : std_boost_exception
+{};
+struct node_missing_error : std_boost_exception
+{};
+
+#define USVFS_THROW_EXCEPTION(x) BOOST_THROW_EXCEPTION(x)
+
+void logExtInfo(const std::exception& e, LogLevel logLevel = LogLevel::Warning);
+
+namespace usvfs::shared
+{
+
+class windows_error : public std::runtime_error
+{
+public:
+  windows_error(const std::string& message, int errorcode = GetLastError())
+      : runtime_error(constructMessage(message, errorcode)), m_ErrorCode(errorcode)
+  {}
+
+  int getErrorCode() const { return m_ErrorCode; }
+
+private:
+  int m_ErrorCode;
+
+  std::string constructMessage(const std::string& input, int errorcode);
+};
+
+class guard
+{
+public:
+  explicit guard(std::function<void()> f) : m_f(std::move(f)) {}
+
+  ~guard()
+  {
+    if (m_f) {
+      m_f();
+    }
+  }
+
+  guard(const guard&);
+  guard& operator=(const guard&);
+
+private:
+  std::function<void()> m_f;
+};
+
+}  // namespace usvfs::shared
+
+#define CONCATENATE_DIRECT(s1, s2) s1##s2
+#define CONCATENATE(s1, s2) CONCATENATE_DIRECT(s1, s2)
+#define ANONYMOUS_VARIABLE(str) CONCATENATE(str, __LINE__)
+#define ON_BLOCK_EXIT(f) usvfs::shared::guard ANONYMOUS_VARIABLE(guard)(f)