Upload config.py

scratch_vision/config.py

@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import os
+import warnings
 from dataclasses import dataclass
 from functools import lru_cache
 from pathlib import Path
@@ -119,12 +120,37 @@ class Settings:
             raise RuntimeError(f"Asset library not found at {self.assets_dir}")
 
 
+def _resolve_base_dir() -> Path:
+    """APP_BASE_DIR if it is usable, else the project folder.
+
+    A stale APP_BASE_DIR (e.g. /app from an older deployment) must not stop the app from booting:
+    on Hugging Face Spaces the container runs as uid 1000 and cannot create directories under /.
+    """
+    configured = _env_str("APP_BASE_DIR")
+    if not configured:
+        return PROJECT_ROOT.resolve()
+    path = Path(configured).resolve()
+    try:
+        path.mkdir(parents=True, exist_ok=True)
+        if os.access(path, os.W_OK):
+            return path
+    except OSError:
+        pass
+    warnings.warn(
+        f"APP_BASE_DIR={configured} is not writable; using {PROJECT_ROOT} instead. "
+        "Remove or fix the APP_BASE_DIR variable.",
+        RuntimeWarning,
+        stacklevel=2,
+    )
+    return PROJECT_ROOT.resolve()
+
+
 @lru_cache(maxsize=1)
 def get_settings() -> Settings:
     load_dotenv(PROJECT_ROOT / ".env")
     weights = tuple(float(w) for w in _env_str("MATCH_WEIGHTS", "0.5,0.3,0.2").split(","))
     return Settings(
-        base_dir=Path(_env_str("APP_BASE_DIR") or PROJECT_ROOT).resolve(),
+        base_dir=_resolve_base_dir(),
         assets_dir_name=_env_str("ASSETS_DIR", "Webashlar_kodomo_assets"),
         host=_env_str("HOST", "0.0.0.0"),
         port=_env_int("PORT", 7860),