updates: filter versions by channel semver pattern

addon/default.py

@@ -1006,6 +1006,22 @@ def _version_sort_key(version: str) -> tuple[int, ...]:
     return tuple(parts[:4])
 
 
+def _is_stable_version(version: str) -> bool:
+    return bool(re.match(r"^\d+\.\d+\.\d+$", str(version or "").strip()))
+
+
+def _is_nightly_version(version: str) -> bool:
+    return bool(re.match(r"^\d+\.\d+\.\d+-nightly$", str(version or "").strip()))
+
+
+def _filter_versions_for_channel(channel: int, versions: list[str]) -> list[str]:
+    if channel == UPDATE_CHANNEL_MAIN:
+        return [v for v in versions if _is_stable_version(v)]
+    if channel == UPDATE_CHANNEL_NIGHTLY:
+        return [v for v in versions if _is_nightly_version(v)]
+    return list(versions)
+
+
 def _resolve_update_info_url() -> str:
     channel = _selected_update_channel()
     if channel == UPDATE_CHANNEL_NIGHTLY:
@@ -3368,10 +3384,11 @@ def _apply_update_channel(*, silent: bool = False) -> bool:
     if xbmc is None:  # pragma: no cover - outside Kodi
         return False
     info_url = _resolve_update_info_url()
+    channel = _selected_update_channel()
     _sync_update_version_settings()
     applied = _update_repository_source(info_url)
     installed_version = _get_setting_string("update_installed_version").strip() or "0.0.0"
-    versions = _fetch_repo_versions(info_url)
+    versions = _filter_versions_for_channel(channel, _fetch_repo_versions(info_url))
     target_version = versions[0] if versions else "-"
 
     install_result = False
@@ -3454,7 +3471,7 @@ def _show_version_selector() -> None:
     channel = _selected_update_channel()
     _sync_update_version_settings()
 
-    versions = _fetch_repo_versions(info_url)
+    versions = _filter_versions_for_channel(channel, _fetch_repo_versions(info_url))
     if not versions:
         xbmcgui.Dialog().notification("Updates", "Keine Versionen im Repo gefunden.", xbmcgui.NOTIFICATION_ERROR, 4000)
         return