Upload patch_restore_full_app.py

patch_restore_full_app.py

@@ -0,0 +1,84 @@
+"""Restore the pre-retirement full app: App.tsx (frontend) + start.sh (backend).
+
+Upstream smolagents/ml-intern retired the hosted app: frontend App.tsx now
+renders RetirementPage ("ML Intern has moved to HuggingChat") and backend/start.sh
+now runs retired_main:app. That turns this Space into a static redirect page and
+the backend never starts, so our model patches have no visible effect.
+
+This patch overwrites both files with the last pre-retirement versions that this
+Space's Dockerfile was built on:
+  - frontend/src/App.tsx  -> full AppLayout + useAuth app
+  - backend/start.sh      -> uvicorn main:app (the real backend)
+
+Runs from either build stage: it patches whichever target exists and prints
+SKIP for the other (idempotent, re-runnable).
+"""
+
+import os
+
+FRONTEND_APP = r"""import { Box } from '@mui/material';
+import AppLayout from '@/components/Layout/AppLayout';
+import { useAuth } from '@/hooks/useAuth';
+
+function App() {
+  // Non-blocking auth check -- fires in background, updates store when done.
+  // If auth fails later, apiFetch redirects to /auth/login.
+  useAuth();
+
+  return (
+    <Box sx={{ height: '100vh', display: 'flex' }}>
+      <AppLayout />
+    </Box>
+  );
+}
+
+export default App;
+"""
+
+BACKEND_START = r"""#!/bin/bash
+# Entrypoint for HF Spaces dev mode compatibility.
+# Dev mode spawns CMD multiple times simultaneously on restart.
+# Only the first instance can bind port 7860 - the rest must exit
+# with code 0 so the dev mode daemon doesn't mark the app as crashed.
+
+# Run uvicorn; if it fails due to port conflict, exit cleanly.
+uvicorn main:app --host 0.0.0.0 --port 7860
+EXIT_CODE=$?
+
+if [ $EXIT_CODE -ne 0 ]; then
+    # Check if this was a port-in-use failure (another instance already running)
+    echo "uvicorn exited with code $EXIT_CODE, exiting gracefully."
+    exit 0
+fi
+"""
+
+
+def _write(path: str, content: str, executable: bool = False) -> bool:
+    if not os.path.exists(path):
+        return False
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(content)
+    if executable:
+        os.chmod(path, 0o755)
+    return True
+
+
+changed = False
+
+written = _write("/source/frontend/src/App.tsx", FRONTEND_APP)
+if written:
+    print("OK: restored /source/frontend/src/App.tsx (full AppLayout app)")
+    changed = True
+else:
+    print("SKIP: /source/frontend/src/App.tsx not present (backend stage?)")
+
+written = _write("/app/backend/start.sh", BACKEND_START, executable=True)
+if written:
+    print("OK: restored /app/backend/start.sh (uvicorn main:app)")
+    changed = True
+else:
+    print("SKIP: /app/backend/start.sh not present (frontend stage?)")
+
+if not changed:
+    raise SystemExit("FAIL: neither target file found - unexpected layout")
+print("OK: full-app restore done")