[tools] Rename find_config_path to find_home_config_dir

This avoids confusion on whether it finds the actual personal config _file_,
because this function returns the _directory_ in which to find the personal config file.

Author: mpsijm

bin/tools.py

@@ -1058,7 +1058,7 @@ def build_parser() -> SuppressingParser:
     return parser
 
 
-def find_personal_config() -> Optional[Path]:
+def find_home_config_dir() -> Optional[Path]:
     if is_windows():
         app_data = os.getenv("AppData")
         return Path(app_data) if app_data else None
@@ -1071,14 +1071,14 @@ def find_personal_config() -> Optional[Path]:
 
 
 def read_personal_config(problem_dir: Optional[Path]) -> None:
-    home_config = find_personal_config()
+    home_config_dir = find_home_config_dir()
     # possible config files, sorted by priority
     config_files = []
     if problem_dir:
         config_files.append(problem_dir / ".bapctools.yaml")
     config_files.append(Path.cwd() / ".bapctools.yaml")
-    if home_config:
-        config_files.append(home_config / "bapctools" / "config.yaml")
+    if home_config_dir:
+        config_files.append(home_config_dir / "bapctools" / "config.yaml")
 
     for config_file in config_files:
         if not config_file.is_file():