From 626f0d18861487817c083604962cb275434adbc7 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Wed, 20 Mar 2019 17:17:15 +0000
Subject: [PATCH] copy: account for server side copy bytes and obey
 --max-transfer

---
 fs/operations/operations.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/operations/operations.go b/fs/operations/operations.go
index 1b65ffda7..0a265f140 100644
--- a/fs/operations/operations.go
+++ b/fs/operations/operations.go
@@ -274,9 +274,14 @@ func Copy(f fs.Fs, dst fs.Object, remote string, src fs.Object) (newDst fs.Objec
 		// is same underlying remote
 		actionTaken = "Copied (server side copy)"
 		if doCopy := f.Features().Copy; doCopy != nil && (SameConfig(src.Fs(), f) || (SameRemoteType(src.Fs(), f) && f.Features().ServerSideAcrossConfigs)) {
+			// Check transfer limit for server side copies
+			if fs.Config.MaxTransfer >= 0 && accounting.Stats.GetBytes() >= int64(fs.Config.MaxTransfer) {
+				return nil, accounting.ErrorMaxTransferLimitReached
+			}
 			newDst, err = doCopy(src, remote)
 			if err == nil {
 				dst = newDst
+				accounting.Stats.Bytes(dst.Size()) // account the bytes for the server side transfer
 			}
 		} else {
 			err = fs.ErrorCantCopy