updated base filename

Author: datsom1

db_diff/cli.py

@@ -171,8 +171,14 @@ def cli(
     # Set default output filename if needed
     if output == "jsonfile":
         timestamp = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+        
+        # Extract base filenames without extensions for the comparison files
+        prev_basename = os.path.splitext(os.path.basename(previous))[0]
+        curr_basename = os.path.splitext(os.path.basename(current))[0]
+        default_name = f"{timestamp}_diffs_{prev_basename}__VS__{curr_basename}.json"
+        
         if not output_file:
-            output_file = f"{timestamp}_diffs.json"
+            output_file = default_name
         else:
             # Append the user-specified filename to the timestamp
             base_name = os.path.splitext(output_file)[0]  # Remove extension if present