dev: Changelog-Dialog nur anzeigen wenn Eintrag vorhanden

addon/default.py

@@ -1418,7 +1418,7 @@ def _extract_changelog_section(changelog_text: str, version: str) -> str:
             start = idx
             break
     if start < 0:
-        return f"Kein Changelog-Abschnitt fuer Version {wanted} gefunden."
+        return ""
 
     end = len(lines)
     for idx in range(start + 1, len(lines)):
@@ -1441,7 +1441,7 @@ def _fetch_changelog_for_channel(channel: int, version: str) -> str:
     try:
         text = _read_text_url(url)
     except Exception:
-        return "Changelog konnte nicht geladen werden."
+        return ""
     return _extract_changelog_section(text, version)
 
 
@@ -3732,12 +3732,13 @@ def _show_version_selector() -> None:
 
     version = versions[selected]
     changelog = _fetch_changelog_for_channel(channel, version)
-    viewer = getattr(xbmcgui.Dialog(), "textviewer", None)
-    if callable(viewer):
-        try:
-            viewer(f"Changelog {version}", changelog)
-        except Exception:
-            pass
+    if changelog:
+        viewer = getattr(xbmcgui.Dialog(), "textviewer", None)
+        if callable(viewer):
+            try:
+                viewer(f"Changelog {version}", changelog)
+            except Exception:
+                pass
 
     action = xbmcgui.Dialog().select(
         f"Version {version} installieren?",