update

tools/search_md.py

@@ -189,6 +189,7 @@ def main(argv=None):
     p.add_argument('--out', default='results.json', help='Output file')
     p.add_argument('--format', choices=['json','csv'], default='json')
     p.add_argument('--copy-to', help='Optional: copy matched markdown files to this dir')
+    p.add_argument("--copy-to-clear", default=True, action="store_true", help="Overwrite files when copying to --copy-to")
     args = p.parse_args(argv)
 
     if ':' not in args.query:
@@ -204,6 +205,16 @@ def main(argv=None):
 
     if args.copy_to and results:
         os.makedirs(args.copy_to, exist_ok=True)
+        if args.copy_to_clear:
+            # clear existing files in target dir
+            for existing_fn in os.listdir(args.copy_to):
+                existing_path = os.path.join(args.copy_to, existing_fn)
+                try:
+                    if os.path.isfile(existing_path):
+                        os.remove(existing_path)
+                except Exception:
+                    pass
+
         for r in results:
             try:
                 dst = os.path.join(args.copy_to, os.path.basename(r['path']))