Merge branch 'develop' into relative_stake

freqtrade/configuration/config_validation.py

@@ -1,4 +1,5 @@
 import logging
+from copy import deepcopy
 from typing import Any, Dict
 
 from jsonschema import Draft4Validator, validators
@@ -42,15 +43,25 @@ def validate_config_schema(conf: Dict[str, Any]) -> Dict[str, Any]:
     :param conf: Config in JSON format
     :return: Returns the config if valid, otherwise throw an exception
     """
+    conf_schema = deepcopy(constants.CONF_SCHEMA)
+    if conf.get('runmode', RunMode.OTHER) in (RunMode.DRY_RUN, RunMode.LIVE):
+        conf_schema['required'] = constants.SCHEMA_TRADE_REQUIRED
+    else:
+        conf_schema['required'] = constants.SCHEMA_MINIMAL_REQUIRED
+        # Dynamically allow empty stake-currency
+        # Since the minimal config specifies this too.
+        # It's not allowed for Dry-run or live modes
+        conf_schema['properties']['stake_currency']['enum'] += ['']  # type: ignore
+
     try:
-        FreqtradeValidator(constants.CONF_SCHEMA).validate(conf)
+        FreqtradeValidator(conf_schema).validate(conf)
         return conf
     except ValidationError as e:
         logger.critical(
             f"Invalid configuration. See config.json.example. Reason: {e}"
         )
         raise ValidationError(
-            best_match(Draft4Validator(constants.CONF_SCHEMA).iter_errors(conf)).message
+            best_match(Draft4Validator(conf_schema).iter_errors(conf)).message
         )