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, 106 insertions, 0 deletions

diff --git a/libs/archive/src/multioutputstream.h b/libs/archive/src/multioutputstream.h
new file mode 100644
index 0000000..624ab5b
--- /dev/null
+++ b/libs/archive/src/multioutputstream.h
@@ -0,0 +1,106 @@
+/*
+Mod Organizer archive handling
+
+Copyright (C) 2012 Sebastian Herbord, 2020 MO2 Team. All rights reserved.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef MULTIOUTPUTSTREAM_H
+#define MULTIOUTPUTSTREAM_H
+
+#include <filesystem>
+#include <functional>
+#include <memory>
+#include <vector>
+
+#include <7zip/IStream.h>
+
+#include "fileio.h"
+#include "unknown_impl.h"
+
+/** This class allows you to open and output to multiple file handles at a time.
+ * It implements the ISequentalOutputStream interface and has some extra functions
+ * which are used by the CArchiveExtractCallback class to basically open and
+ * set the timestamp on all the files.
+ *
+ * Note that the handling on errors could be better.
+ */
+class MultiOutputStream : public IOutStream
+{
+
+  UNKNOWN_1_INTERFACE(IOutStream);
+
+public:
+  // Callback for write. Args are: 1) number of bytes that have been
+  // written for this call, 2) number of bytes that have been written
+  // in total.
+  using WriteCallback = std::function<void(UInt32, UInt64)>;
+
+  MultiOutputStream(WriteCallback callback = {});
+
+  virtual ~MultiOutputStream();
+
+  /** Opens the supplied files.
+   *
+   * @returns true if all went OK, false if any file failed to open
+   */
+  bool Open(std::vector<std::filesystem::path> const& fileNames);
+
+  /** Closes all the files opened by the last open
+   *
+   * Note if there are any errors, the code will merely report the last one.
+   */
+  HRESULT Close();
+
+  /** Sets the modification time on the open files
+   *
+   * @returns true if all files had the time set succesfully, false otherwise
+   * note that this will give up as soon as it gets an error
+   */
+  bool SetMTime(FILETIME const* mTime);
+
+  // ISequentialOutStream interface
+
+  /** Write data to all the streams
+   *
+   * The processedSize returned will be the same as size, unless
+   * there was an error, in which case it might or might not be different.
+   * @warn If an error happens, the code will not attempt any further writing,
+   * so some files might not get written to at all
+   */
+  STDMETHOD(Write)(const void* data, UInt32 size, UInt32* processedSize) throw() override;
+
+  STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64* newPosition) throw() override;
+  STDMETHOD(SetSize)(UInt64 newSize) throw() override;
+  HRESULT GetSize(UInt64* size);
+
+private:
+  WriteCallback m_WriteCallback;
+
+  /** This is the amount of data written to *any one* file.
+   *
+   * If there are errors writing to one of the files, this might or might
+   * not match what was actually written to another of the files
+   */
+  UInt64 m_ProcessedSize;
+
+  /** All the files opened for this 'stream'
+   *
+   */
+  std::vector<IO::FileOut> m_Files;
+};
+
+#endif  // MULTIOUTPUTSTREAM_H