Remove signal-based timeout (incompatible with HF Spaces)

- signal.SIGALRM not available/working in HF Spaces environment
- Rely on subprocess timeouts which work correctly
- Add try-except blocks around data fetch/copy for better error handling
- Simplify setup_mock_data() implementation

setup_data.py

@@ -5,18 +5,11 @@ This runs before the app starts to ensure data is available.
 import os
 import shutil
 import subprocess
-import signal
 from pathlib import Path
 from config import DATA_DIR, EXTRACTED_DATA_DIR, CONFIG_NAME
 
 GITHUB_REPO = "https://github.com/OpenHands/openhands-index-results.git"
 
-class TimeoutError(Exception):
-    pass
-
-def timeout_handler(signum, frame):
-    raise TimeoutError("Operation timed out")
-
 def fetch_data_from_github():
     """
     Fetch data from the openhands-index-results GitHub repository.
@@ -126,9 +119,9 @@ def copy_mock_data():
     print(f"Target directory: {target_dir.absolute()}")
     return True
 
-def _setup_mock_data_impl():
+def setup_mock_data():
     """
-    Internal implementation of setup data for the leaderboard.
+    Setup data for the leaderboard.
     First tries to fetch from GitHub, falls back to mock data if unavailable.
     """
     print("=" * 60)
@@ -146,40 +139,25 @@ def _setup_mock_data_impl():
     
     # Try to fetch from GitHub first
     print("\n--- Attempting to fetch from GitHub ---")
-    if fetch_data_from_github():
-        print("✓ Successfully using data from GitHub repository")
-        return
+    try:
+        if fetch_data_from_github():
+            print("✓ Successfully using data from GitHub repository")
+            return
+    except Exception as e:
+        print(f"GitHub fetch failed with error: {e}")
     
     # Fall back to mock data
     print("\n--- GitHub data not available, falling back to mock data ---")
-    if copy_mock_data():
-        print("✓ Successfully using mock data")
-        return
+    try:
+        if copy_mock_data():
+            print("✓ Successfully using mock data")
+            return
+    except Exception as e:
+        print(f"Mock data copy failed with error: {e}")
     
     print("\n" + "!" * 60)
     print("ERROR: No data available! Neither GitHub nor mock data could be loaded.")
     print("!" * 60)
 
-def setup_mock_data():
-    """
-    Wrapper for setup_mock_data with timeout protection.
-    """
-    try:
-        # Set a timeout of 60 seconds for the entire setup
-        signal.signal(signal.SIGALRM, timeout_handler)
-        signal.alarm(60)
-        
-        _setup_mock_data_impl()
-        
-        # Cancel the alarm
-        signal.alarm(0)
-    except TimeoutError:
-        print("!!! TIMEOUT: Data setup took too long (>60s), skipping...")
-        signal.alarm(0)  # Cancel the alarm
-    except Exception as e:
-        print(f"!!! ERROR during setup: {e}")
-        signal.alarm(0)  # Cancel the alarm
-        raise
-
 if __name__ == "__main__":
     setup_mock_data()