Optimize metadata updates with batch function

Co-authored-by: Mte90 <403283+Mte90@users.noreply.github.com>

Author: Copilot

analyzer.py

@@ -11,7 +11,7 @@
 import concurrent.futures
 import threading
 
-from db import store_file, needs_reindex, set_project_metadata, get_project_metadata
+from db import store_file, needs_reindex, set_project_metadata_batch, get_project_metadata
 from external_api import get_embedding_for_text, call_coding_api
 from llama_index.core import Document
 from logger import get_logger
@@ -474,10 +474,13 @@ def analyze_local_path_sync(
         duration = end_time - start_time
 
         try:
-            set_project_metadata(database_path, "last_indexed_at", time.strftime("%Y-%m-%d %H:%M:%S"))
-            set_project_metadata(database_path, "last_index_duration", str(duration))
-            set_project_metadata(database_path, "files_indexed", str(file_count))
-            set_project_metadata(database_path, "files_skipped", str(skipped_count))
+            # Use batch update for efficiency - single database transaction
+            set_project_metadata_batch(database_path, {
+                "last_indexed_at": time.strftime("%Y-%m-%d %H:%M:%S"),
+                "last_index_duration": str(duration),
+                "files_indexed": str(file_count),
+                "files_skipped": str(skipped_count)
+            })
         except Exception:
             logger.exception("Failed to store indexing metadata")
 

db.py

@@ -424,6 +424,34 @@ def set_project_metadata(database_path: str, key: str, value: str) -> None:
         conn.close()
 
 
+def set_project_metadata_batch(database_path: str, metadata: Dict[str, str]) -> None:
+    """
+    Set multiple project metadata key-value pairs in a single transaction.
+    More efficient than multiple set_project_metadata calls.
+    
+    Args:
+        database_path: Path to the database
+        metadata: Dictionary of key-value pairs to set
+    """
+    conn = _get_connection(database_path)
+    try:
+        cur = conn.cursor()
+        for key, value in metadata.items():
+            cur.execute(
+                """
+                INSERT INTO project_metadata (key, value, updated_at) 
+                VALUES (?, ?, datetime('now'))
+                ON CONFLICT(key) DO UPDATE SET 
+                    value=excluded.value,
+                    updated_at=datetime('now')
+                """,
+                (key, value)
+            )
+        conn.commit()
+    finally:
+        conn.close()
+
+
 def get_project_metadata(database_path: str, key: str) -> Optional[str]:
     """
     Get a project metadata value by key.