Config should be validated with clearer errors

Commencez par mautrix/util/config.py, en particulier _recursive_get, ainsi que par mautrix_telegram/config.py, où bridge.filter.mode est copié lors de la configuration. Reproduisez l’échec au démarrage montré dans le rapport et faites en sorte qu’une configuration imbriquée invalide produise une erreur qui identifie le problème au lieu du traceback de NoneType.

This doesn't tell me what is wrong:

Feb  3 10:15:20 integrations systemd[1]: Started Telegram Bridge.
Feb  3 10:15:22 integrations python[16389]: Traceback (most recent call last):
Feb  3 10:15:22 integrations python[16389]:   File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
Feb  3 10:15:22 integrations python[16389]:     "__main__", mod_spec)
Feb  3 10:15:22 integrations python[16389]:   File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
Feb  3 10:15:22 integrations python[16389]:     exec(code, run_globals)
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix_telegram/__main__.py", line 113, in <module>
Feb  3 10:15:22 integrations python[16389]:     TelegramBridge().run()
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/bridge/bridge.py", line 92, in run
Feb  3 10:15:22 integrations python[16389]:     self._prepare()
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/bridge/bridge.py", line 99, in _prepare
Feb  3 10:15:22 integrations python[16389]:     self.prepare_config(args.config, args.registration, args.base_config)
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/bridge/bridge.py", line 122, in prepare_config
Feb  3 10:15:22 integrations python[16389]:     self.config.update()
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 152, in update
Feb  3 10:15:22 integrations python[16389]:     self.do_update(ConfigUpdateHelper(base, self))
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix_telegram/config.py", line 146, in do_update
Feb  3 10:15:22 integrations python[16389]:     copy("bridge.filter.mode")
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 112, in copy
Feb  3 10:15:22 integrations python[16389]:     if from_path in self.source:
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 57, in __contains__
Feb  3 10:15:22 integrations python[16389]:     return self.get(key, None) is not None
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 50, in get
Feb  3 10:15:22 integrations python[16389]:     return self._recursive_get(self._data, key, default_value)
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 45, in _recursive_get
Feb  3 10:15:22 integrations python[16389]:     return self._recursive_get(next_data, next_key, default_value)
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 45, in _recursive_get
Feb  3 10:15:22 integrations python[16389]:     return self._recursive_get(next_data, next_key, default_value)
Feb  3 10:15:22 integrations python[16389]:   File "/home/telegram/tgenv/lib/python3.6/site-packages/mautrix/util/config.py", line 46, in _recursive_get
Feb  3 10:15:22 integrations python[16389]:     return data.get(key, default_value)
Feb  3 10:15:22 integrations python[16389]: AttributeError: 'NoneType' object has no attribute 'get'
Feb  3 10:15:22 integrations systemd[1]: telegram.service: Main process exited, code=exited, status=1/FAILURE