Merge pull request #11 from nyanloutre/catch_save_config_exception

Catch exception when overwriting config

mautrix/util/config.py

@@ -8,12 +8,15 @@
 from ruamel.yaml.comments import CommentedMap
 from abc import ABC, abstractmethod
 import io
+import logging
 
 yaml = YAML()
 yaml.indent(4)
 
 T = TypeVar('T')
 
+log: logging.Logger = logging.getLogger("mau.util.config")
+
 
 class RecursiveDict(Generic[T]):
     def __init__(self, data: Optional[T] = None, dict_factory: Optional[Type[T]] = None) -> None:
@@ -209,5 +212,8 @@ def load_base(self) -> Optional[RecursiveDict[CommentedMap]]:
         return None
 
     def save(self) -> None:
-        with open(self.path, 'w') as stream:
-            yaml.dump(self._data, stream)
+        try:
+            with open(self.path, 'w') as stream:
+                yaml.dump(self._data, stream)
+        except OSError:
+            log.exception(f"Failed to overwrite the config in {self.path}")