增强配置系统

sync_state_machine/config/run_presets.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import json
+import importlib
 from pathlib import Path
 from typing import Any, Dict, List, Tuple
 
@@ -28,6 +29,43 @@ def _replace_placeholders(value: Any, project_root: Path) -> Any:
     return value
 
 
+def _import_from_path(import_path: str) -> Any:
+    module_path, sep, attr_path = import_path.partition(":")
+    if not module_path:
+        raise ValueError(f"Invalid import path: {import_path}")
+
+    module = importlib.import_module(module_path)
+    if not sep:
+        return module
+
+    obj: Any = module
+    for attr_name in attr_path.split("."):
+        obj = getattr(obj, attr_name)
+    return obj
+
+
+def _apply_datasource_bootstraps(payload: Dict[str, Any]) -> Dict[str, Any]:
+    extensions = payload.pop("extensions", None)
+    if extensions is None:
+        return payload
+    if not isinstance(extensions, dict):
+        raise ValueError("extensions must be an object mapping")
+
+    bootstrap_paths = extensions.get("datasource_bootstraps") or []
+    if not isinstance(bootstrap_paths, list):
+        raise ValueError("extensions.datasource_bootstraps must be a list")
+
+    for item in bootstrap_paths:
+        if not isinstance(item, str) or not item.strip():
+            raise ValueError("extensions.datasource_bootstraps entries must be non-empty strings")
+        loaded = _import_from_path(item)
+        if not callable(loaded):
+            raise TypeError(f"datasource bootstrap must resolve to a callable: {item}")
+        loaded()
+
+    return payload
+
+
 def list_preset_names() -> List[str]:
     return sorted(PRESET_FILES.keys())
 
@@ -77,7 +115,7 @@ def load_overrides_from_file(file_path: Path, project_root: Path) -> Dict[str, A
     resolved = _replace_placeholders(payload, project_root)
     if not isinstance(resolved, dict):
         raise ValueError(f"Preset file must contain object mapping: {file_path}")
-    return resolved
+    return _apply_datasource_bootstraps(resolved)
 
 
 def load_named_preset_overrides(project_root: Path, preset_name: str) -> Tuple[Dict[str, Any], Path, bool]: