From 221839e6d669604192df79c2b4ffc2912d941b2e Mon Sep 17 00:00:00 2001
From: Jinzhe Zeng <jinzhe.zeng@rutgers.edu>
Date: Mon, 28 Mar 2022 21:01:52 -0400
Subject: [PATCH] only check sha256 when there is something in the remote
 directory (#172)

---
 dpdispatcher/ssh_context.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dpdispatcher/ssh_context.py b/dpdispatcher/ssh_context.py
index 1f07f231..ff40cdcc 100644
--- a/dpdispatcher/ssh_context.py
+++ b/dpdispatcher/ssh_context.py
@@ -334,8 +334,9 @@ def upload(self,
         try:
             self.ssh_session.sftp.mkdir(os.path.basename(self.remote_root))
         except OSError:
-            # mkdir failed meaning it exists, thus the job is recovered
-            recover = True
+            # mkdir failed meaning it exists
+            if len(self.ssh_session.sftp.listdir(os.path.basename(self.remote_root))):
+                recover = True
         self.ssh_session.sftp.chdir(None)
 
         cwd = os.getcwd()