From 862e18488ccf8bf4777d229b0a694d7c0c89ea98 Mon Sep 17 00:00:00 2001
From: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
Date: Tue, 16 Mar 2021 15:08:59 +0300
Subject: [PATCH] gs: process etag when it is available (#5634)

---
 dvc/fs/gs.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dvc/fs/gs.py b/dvc/fs/gs.py
index 782947e27..74f643732 100644
--- a/dvc/fs/gs.py
+++ b/dvc/fs/gs.py
@@ -31,7 +31,8 @@ class GSFileSystem(FSSpecWrapper):
         return login_info
 
     def _entry_hook(self, entry):
-        entry["etag"] = base64.b64decode(entry["etag"]).hex()
+        if "etag" in entry:
+            entry["etag"] = base64.b64decode(entry["etag"]).hex()
         return entry
 
     @wrap_prop(threading.Lock())