fixed # 修复迁移数据库失败的BUG

integrations/zhenxun/data_paths.py

@@ -1,30 +1,9 @@
-"""农场默认目录与旧预览目录的无覆盖迁移。"""
+"""农场数据目录选择。"""
 
 from pathlib import Path
 
 
-def data_directories(base, configured=None):
+def data_directory(base, configured=None):
     if configured is not None:
-        return Path(configured), None
-    return Path(base) / 'farm_db', Path(base) / 'farm_preview'
-
-
-def prepare_directory(target, legacy=None):
-    target = Path(target).absolute()
-    if legacy is not None:
-        legacy = Path(legacy).absolute()
-        if (target.name != 'farm_db' or legacy.name != 'farm_preview'
-                or target.parent.resolve() != legacy.parent.resolve()):
-            raise ValueError('Farm migration requires default sibling paths')
-        if target.is_symlink() or legacy.is_symlink():
-            raise ValueError('Farm migration does not follow directory links')
-        if (legacy / 'farm-preview.sqlite3').is_file():
-            if target.exists():
-                raise FileExistsError(
-                    'farm_db already exists beside farm_preview; '
-                    'select farm_preview_data_dir explicitly before startup'
-                )
-            legacy.rename(target)
-            return True
-    target.mkdir(parents=True, exist_ok=True)
-    return False
+        return Path(configured)
+    return Path(base) / 'farm_db'