style: apply ruff format to src/configdrift/loader.py

Author: Coding-Dev-Tools

src/configdrift/loader.py

@@ -6,7 +6,9 @@
 from pathlib import Path
 from typing import Any
 
-_toml = importlib.import_module("tomllib" if __import__("sys").version_info >= (3, 11) else "tomli")
+_toml = importlib.import_module(
+    "tomllib" if __import__("sys").version_info >= (3, 11) else "tomli"
+)
 
 
 def load_file(path: str) -> dict[str, Any]:
@@ -37,18 +39,23 @@ def load_file(path: str) -> dict[str, Any]:
 
 def _load_yaml(path: Path) -> dict[str, Any]:
     import yaml
+
     with open(path, encoding="utf-8") as f:
         data = yaml.safe_load(f)
     if not isinstance(data, dict):
-        raise ValueError(f"YAML file must contain a mapping (dict), got {type(data).__name__}")
+        raise ValueError(
+            f"YAML file must contain a mapping (dict), got {type(data).__name__}"
+        )
     return _flatten_nested(data)
 
 
 def _load_json(path: Path) -> dict[str, Any]:
     with open(path, encoding="utf-8") as f:
         data = json.load(f)
     if not isinstance(data, dict):
-        raise ValueError(f"JSON file must contain a mapping (dict), got {type(data).__name__}")
+        raise ValueError(
+            f"JSON file must contain a mapping (dict), got {type(data).__name__}"
+        )
     return _flatten_nested(data)
 
 
@@ -85,9 +92,9 @@ def _load_dotenv(path: Path) -> dict[str, Any]:
             if not line or line.startswith("#"):
                 continue
             # Strip optional 'export ' prefix (shell-style .env files)
-            line = re.sub(r'^export\s+', '', line)
+            line = re.sub(r"^export\s+", "", line)
             # Parse KEY=VALUE or KEY="VALUE" or KEY='VALUE'
-            match = re.match(r'^([A-Za-z_][A-Za-z0-9_]*)\s*=\s*(.*)$', line)
+            match = re.match(r"^([A-Za-z_][A-Za-z0-9_]*)\s*=\s*(.*)$", line)
             if match:
                 key = match.group(1)
                 val = match.group(2).strip()
@@ -110,5 +117,7 @@ def _flatten_nested(d: dict[str, Any], prefix: str = "") -> dict[str, Any]:
         elif value is None:
             result[full_key] = ""
         else:
-            result[full_key] = str(value) if not isinstance(value, str | int | float | bool) else value
+            result[full_key] = (
+                str(value) if not isinstance(value, str | int | float | bool) else value
+            )
     return result