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, 121 insertions, 0 deletions

diff --git a/libs/basic_games/games/game_silksong.py b/libs/basic_games/games/game_silksong.py
new file mode 100644
index 0000000..12aab55
--- /dev/null
+++ b/libs/basic_games/games/game_silksong.py
@@ -0,0 +1,121 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from PyQt6.QtCore import QDir
+
+import mobase
+
+from ..basic_features import BasicModDataChecker, GlobPatterns
+from ..basic_features.basic_save_game_info import BasicGameSaveGame
+from ..basic_game import BasicGame
+
+
+class SilksongModDataChecker(BasicModDataChecker):
+    def __init__(self, patterns: GlobPatterns | None = None):
+        super().__init__(
+            GlobPatterns(
+                valid=[
+                    # BepInEx files go to root
+                    "BepInEx",
+                    "doorstop_config.ini",
+                    "winhttp.dll",
+                    ".doorstop_version",
+                ],
+                delete=[
+                    "*.txt",
+                    "*.md",
+                    "manifest.json",
+                    "icon.png",
+                ],
+            ).merge(patterns or GlobPatterns()),
+        )
+
+    def dataLooksValid(
+        self, filetree: mobase.IFileTree
+    ) -> mobase.ModDataChecker.CheckReturn:
+        # Check if it contains BepInEx folders/files - if so, keep structure
+        if self._has_bepinex_structure(filetree):
+            return self.VALID
+
+        # Everything else needs to go to BepInEx/plugins/
+        return self.FIXABLE
+
+    def _has_bepinex_structure(self, filetree: mobase.IFileTree) -> bool:
+        """Check if the mod has BepInEx folder structure"""
+        for entry in filetree:
+            name = entry.name().lower()
+            if name in [
+                "bepinex",
+                "doorstop_config.ini",
+                "winhttp.dll",
+                ".doorstop_version",
+            ]:
+                return True
+        return False
+
+    def fix(self, filetree: mobase.IFileTree) -> mobase.IFileTree:
+        # First apply the basic fix (handles delete patterns)
+        filetree = super().fix(filetree)
+
+        # If no BepInEx structure, move everything to BepInEx/plugins/
+        if not self._has_bepinex_structure(filetree):
+            # Move all top-level items to BepInEx/plugins/
+            items_to_move = list(filetree)
+            for item in items_to_move:
+                filetree.move(item, f"BepInEx/plugins/{item.name()}")
+
+        return filetree
+
+
+class SilksongGame(BasicGame):
+    Name = "Hollow Knight: Silksong Support Plugin"
+    Author = "Nikirack"
+    Version = "1.0.0"
+
+    GameName = "Hollow Knight: Silksong"
+    GameShortName = "hollowknightsilksong"  # Match the error message
+    GameNexusName = "hollowknightsilksong"
+    GameSteamId = 1030300
+    GameBinary = r"Hollow Knight Silksong.exe"
+    GameDataPath = ""
+    GameSavesDirectory = (
+        r"%USERPROFILE%\AppData\LocalLow\Team Cherry\Hollow Knight Silksong"
+    )
+    GameSupportURL = (
+        r"https://github.com/ModOrganizer2/modorganizer-basic_games/wiki/"
+        "Game:-Hollow-Knight-Silksong"
+    )
+
+    _forced_libraries = ["winhttp.dll"]
+
+    def init(self, organizer: mobase.IOrganizer) -> bool:
+        super().init(organizer)
+        self._register_feature(SilksongModDataChecker())
+        return True
+
+    def listSaves(self, folder: QDir) -> list[mobase.ISaveGame]:
+        saves: list[mobase.ISaveGame] = []
+        save_dir = Path(folder.absolutePath())
+
+        if save_dir.exists():
+            # Look for common save file patterns
+            for pattern in ["*.save", "user*.dat"]:
+                for save_file in save_dir.rglob(pattern):
+                    saves.append(BasicGameSaveGame(save_file))
+
+        return saves
+
+    def executables(self) -> list[mobase.ExecutableInfo]:
+        return [
+            mobase.ExecutableInfo(
+                self.gameName(),
+                self.gameDirectory().absoluteFilePath(self.binaryName()),
+            )
+        ]
+
+    def executableForcedLoads(self) -> list[mobase.ExecutableForcedLoadSetting]:
+        return [
+            mobase.ExecutableForcedLoadSetting(self.binaryName(), lib).withEnabled(True)
+            for lib in self._forced_libraries
+        ]