From aaf4fb11841f1062741342f7f7a016fd12dd41a0 Mon Sep 17 00:00:00 2001
From: Anis Eleuch <vadmeste@users.noreply.github.com>
Date: Mon, 2 Sep 2024 13:36:43 +0100
Subject: [PATCH] batch: repl: A missing prefix in the remote source will fail
 replication (#20365)

When the prefix field is not provided in the remote source of a yaml
replication job, the code fails to do listing and makes replication
successful. This commit fixes it.
---
 cmd/batch-handlers.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmd/batch-handlers.go b/cmd/batch-handlers.go
index bcb78f2b3..15e70a532 100644
--- a/cmd/batch-handlers.go
+++ b/cmd/batch-handlers.go
@@ -388,7 +388,11 @@ func (r *BatchJobReplicateV1) StartFromSource(ctx context.Context, api ObjectLay
 
 		objInfoCh := make(chan miniogo.ObjectInfo, 1)
 		go func() {
-			for _, prefix := range r.Source.Prefix.F() {
+			prefixes := r.Source.Prefix.F()
+			if len(prefixes) == 0 {
+				prefixes = []string{""}
+			}
+			for _, prefix := range prefixes {
 				prefixObjInfoCh := c.ListObjects(ctx, r.Source.Bucket, miniogo.ListObjectsOptions{
 					Prefix:       strings.TrimSpace(prefix),
 					WithVersions: minioSrc,