Generalize "path" variables for resolvers

freqtrade/resolvers/freqaimodel_resolver.py

@@ -26,6 +26,7 @@ class FreqaiModelResolver(IResolver):
     initial_search_path = (
         Path(__file__).parent.parent.joinpath("freqai/prediction_models").resolve()
     )
+    extra_path = "freqaimodel_path"
 
     @staticmethod
     def load_freqaimodel(config: Config) -> IFreqaiModel:
@@ -50,7 +51,6 @@ class FreqaiModelResolver(IResolver):
             freqaimodel_name,
             config,
             kwargs={"config": config},
-            extra_dir=config.get("freqaimodel_path"),
         )
 
         return freqaimodel

freqtrade/resolvers/iresolver.py

@@ -42,6 +42,8 @@ class IResolver:
     object_type_str: str
     user_subdir: Optional[str] = None
     initial_search_path: Optional[Path]
+    # Optional config setting containing a path (strategy_path, freqaimodel_path)
+    extra_path: Optional[str] = None
 
     @classmethod
     def build_search_paths(cls, config: Config, user_subdir: Optional[str] = None,
@@ -58,6 +60,9 @@ class IResolver:
         for dir in extra_dirs:
             abs_paths.insert(0, Path(dir).resolve())
 
+        if cls.extra_path and (extra := config.get(cls.extra_path)):
+            abs_paths.insert(0, Path(extra).resolve())
+
         return abs_paths
 
     @classmethod

freqtrade/resolvers/strategy_resolver.py

@@ -30,6 +30,7 @@ class StrategyResolver(IResolver):
     object_type_str = "Strategy"
     user_subdir = USERPATH_STRATEGIES
     initial_search_path = None
+    extra_path = "strategy_path"
 
     @staticmethod
     def load_strategy(config: Config = None) -> IStrategy:
@@ -268,14 +269,6 @@ class StrategyResolver(IResolver):
             "or contains Python code errors."
         )
 
-    @classmethod
-    def build_search_paths(cls, config: Config, user_subdir: Optional[str] = None,
-                           extra_dirs: List[str] = []) -> List[Path]:
-
-        if 'strategy_path' in config and config['strategy_path'] not in extra_dirs:
-            extra_dirs = [config['strategy_path']] + extra_dirs
-        return super().build_search_paths(config, user_subdir, extra_dirs)
-
 
 def warn_deprecated_setting(strategy: IStrategy, old: str, new: str, error=False):
     if hasattr(strategy, old):