implementing the strategy_updater in a first version

freqtrade/commands/strategy_utils_commands.py

@@ -0,0 +1,37 @@
+import logging
+from typing import Any, Dict
+
+from freqtrade.configuration import setup_utils_configuration
+from freqtrade.enums import RunMode
+from freqtrade.resolvers import StrategyResolver
+
+
+logger = logging.getLogger(__name__)
+
+
+def start_strategy_update(args: Dict[str, Any]) -> None:
+    """
+    Start the strategy updating script
+    :param args: Cli args from Arguments()
+    :return: None
+    """
+
+    # Import here to avoid loading backtesting module when it's not used
+    from freqtrade.strategy.strategy_updater import strategy_updater
+
+    config = setup_utils_configuration(args, RunMode.UTIL_NO_EXCHANGE)
+
+    strategy_objs = StrategyResolver.search_all_objects(
+        config, enum_failed=True, recursive=config.get('recursive_strategy_search', False))
+
+    filtered_strategy_objs = []
+    for args_strategy in args['strategy_list']:
+        for strategy_obj in strategy_objs:
+            if strategy_obj['name'] == args_strategy and strategy_obj not in filtered_strategy_objs:
+                filtered_strategy_objs.append(strategy_obj)
+                break
+
+    for filtered_strategy_obj in filtered_strategy_objs:
+        # Initialize backtesting object
+        instance_strategy_updater = strategy_updater()
+        strategy_updater.start(instance_strategy_updater, filtered_strategy_obj)