Merge pull request #503 from aclist/fix/flatpak-fixes

fix: flatpak fixes

README.md

@@ -17,7 +17,7 @@ DZGUI follows a specific set of guidelines, enumerated below:
 - Provide a free and open-source tool under GPL
 - Do not use undocumented, third-party servers to aggregate data; no central "DZGUI" server
 - All connections go to Steam and DayZ servers directly; the tool should function in perpetuity without intermediary endpoints
-- Target Linux desktop and Steam deck specifically; not a cross-platform tool
+- Target Linux desktop and Steam Deck specifically; not a cross-platform tool
 
 ## Setup and usage
 

dzgui/api/shortcuts.py

@@ -173,11 +173,12 @@ class Shortcuts:
         self.save_shortcuts()
 
     def save_shortcuts(self) -> None:
-        try:
-            backup = self.shortcuts_path.with_suffix(".vdf.bak")
-            shutil.copy(self.shortcuts_path, backup)
-        except Exception as e:
-            logger.critical(e)
+        if self.shortcuts_path.is_file():
+            try:
+                backup = self.shortcuts_path.with_suffix(".vdf.bak")
+                shutil.copy(self.shortcuts_path, backup)
+            except Exception as e:
+                logger.critical(e)
         try:
             with open(self.shortcuts_path, "wb") as f:
                 vdf.binary_dump(self.shortcuts, f)

dzgui/init/prereqs.py

@@ -3,11 +3,14 @@ import shutil
 import subprocess
 
 from dzgui.const.constants import APP_NAME, FLATPAK_APPID, FLATPAK_CMD, STEAM_CMD
+from dzgui.init.proc import is_sandboxed
 
 logger = logging.getLogger(APP_NAME)
 
 
 def has_flatpak_client() -> bool:
+    if is_sandboxed():
+        return True
     try:
         res = subprocess.run(
             [FLATPAK_CMD, "list", "--columns=application"],