v1.9.5: S3 — new folder, folder delete with confirmation, folder drag-and-drop

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/s3_client.py

@@ -306,6 +306,43 @@ class S3Client:
             log.error("S3 presigned URL failed: %s", exc)
             return None
 
+    def delete_prefix(self, bucket: str, prefix: str) -> int:
+        """Recursively delete all objects under a prefix. Returns count deleted."""
+        if not self._ensure_connected():
+            return 0
+        try:
+            deleted = 0
+            paginator = self._client.get_paginator("list_objects_v2")
+            for page in paginator.paginate(Bucket=bucket, Prefix=prefix):
+                objects = page.get("Contents", [])
+                if not objects:
+                    continue
+                delete_req = {
+                    "Objects": [{"Key": obj["Key"]} for obj in objects],
+                    "Quiet": True,
+                }
+                self._client.delete_objects(Bucket=bucket, Delete=delete_req)
+                deleted += len(objects)
+            self._last_ok = time.time()
+            log.info("S3 deleted prefix s3://%s/%s (%d objects)", bucket, prefix, deleted)
+            return deleted
+        except Exception as exc:
+            log.error("S3 delete prefix failed: %s", exc)
+            return 0
+
+    def create_folder(self, bucket: str, key: str) -> bool:
+        """Create a folder (empty object with trailing slash) in S3."""
+        if not self._ensure_connected():
+            return False
+        try:
+            self._client.put_object(Bucket=bucket, Key=key, Body=b"")
+            self._last_ok = time.time()
+            log.info("S3 created folder s3://%s/%s", bucket, key)
+            return True
+        except Exception as exc:
+            log.error("S3 create folder failed: %s", exc)
+            return False
+
     def get_direct_url(self, bucket: str, key: str) -> str:
         """Build a direct (permanent) URL: endpoint/bucket/key."""
         endpoint = self._endpoint.rstrip("/")