パス取得関数の仕様を変更し、階層構造に対応

scripts/1_build_dict.py

@@ -24,15 +24,17 @@ def main():
     log.info("SudachiPyのユーザー辞書をビルドします。")
 
     # 入力用のユーザー辞書CSVファイルのパス
-    user_dict_path = get_file_path_from_config("user_dict", "resources/user_dict.csv")
+    user_dict_path = get_file_path_from_config(
+        "sudachi.user_dict", "resources/user_dict.csv"
+    )
     # 出力のユーザー辞書のパス
     output_path = get_file_path_from_config(
-        "user_dict_generated", "data/generated/user.dic"
+        "sudachi.user_dict_generated", "data/generated/user.dic"
     )
 
     # sudachi.jsonから辞書の種類を取得
     sudachi_config_path = get_file_path_from_config(
-        "sudachi_config", "scripts/sudachi.json"
+        "sudachi.sudachi_config", "scripts/sudachi.json"
     )
     with open(sudachi_config_path, "r") as f:
         try:

scripts/2_create_projects_data.py

@@ -22,10 +22,10 @@ def main():
 
     log.info("企画データの生成を開始します。")
     original_csv_path = get_file_path_from_config(
-        "original_csv", "resources/original_projects.csv"
+        "projects.original_csv", "resources/original_projects.csv"
     )
     output_json_path = get_file_path_from_config(
-        "output_json", "data/generated/projects.json"
+        "projects.output_json", "data/generated/projects.json"
     )
 
     # CSVファイルの読み込み

utils/path.py

@@ -1,9 +1,42 @@
 import json
+from typing import Any
 
 FILE_CONFIG_PATH = "config/files.json"
 
 
-def get_file_path_from_config(key: str, default: str) -> str:
-    with open(FILE_CONFIG_PATH, "r") as f:
-        config: dict[str, str] = json.load(f)
-    return config.get(key, default)
+def _get_nested(d: dict[str, Any], keys: list[str]) -> Any:
+    cur: Any = d
+    for k in keys:
+        if not isinstance(cur, dict) or k not in cur:
+            raise KeyError(k)
+        cur = cur[k]
+    return cur
+
+
+def get_file_path_from_config(
+    key: str, default: str | None = None, sep: str = "."
+) -> str:
+    """
+    設定ファイルからファイルのパスを取得する。
+    階層構造がある場合は`sep`で区切って指定する。
+
+    example: `get_file_path_from_config("projects.original_csv")`
+    """
+    with open(FILE_CONFIG_PATH, "r", encoding="utf-8") as f:
+        config: dict[str, Any] = json.load(f)
+
+    keys = key.split(sep) if sep in key else [key]
+
+    try:
+        value = _get_nested(config, keys)
+    except KeyError:
+        if default is not None:
+            return default
+        raise KeyError(f"Key '{key}' not found in {FILE_CONFIG_PATH}")
+
+    if isinstance(value, str):
+        return value
+
+    if default is not None:
+        return default
+    raise TypeError(f"Value at '{key}' is not a string: {type(value).__name__}")