add option to skip broken item instead of triggering exception

radicale/config.py

@@ -211,6 +211,10 @@ DEFAULT_CONFIG_SCHEMA: types.CONFIG_SCHEMA = OrderedDict([
             "value": "2592000",  # 30 days
             "help": "delete sync token that are older",
             "type": positive_int}),
+        ("skip_broken_item", {
+            "value": False,
+            "help": "skip broken item instead of triggering exception",
+            "type": bool}),
         ("hook", {
             "value": "",
             "help": "command that is run after changes to storage",

radicale/storage/multifilesystem/base.py

@@ -40,6 +40,7 @@ class CollectionBase(storage.BaseCollection):
         # Path should already be sanitized
         self._path = pathutils.strip_path(path)
         self._encoding = storage_.configuration.get("encoding", "stock")
+        self._skip_broken_item = storage_.configuration.get("storage", "skip_broken_item")
         if filesystem_path is None:
             filesystem_path = pathutils.path_to_filesystem(folder, self.path)
         self._filesystem_path = filesystem_path

radicale/storage/multifilesystem/get.py

@@ -101,7 +101,11 @@ class CollectionPartGet(CollectionPartCache, CollectionPartLock,
                         cache_content = self._store_item_cache(
                             href, temp_item, cache_hash)
                     except Exception as e:
-                        raise RuntimeError("Failed to load item %r in %r: %s" %
+                        if self._skip_broken_item:
+                            logger.warning("Skip broken item %r in %r: %s", href, self.path, e)
+                            return
+                        else:
+                            raise RuntimeError("Failed to load item %r in %r: %s" %
                                            (href, self.path, e)) from e
                     # Clean cache entries once after the data in the file
                     # system was edited externally.