From a3faa5d51f8e34239c0984e4a8f5d66e19188e1e Mon Sep 17 00:00:00 2001
From: Moritz <moritz.m@local-it.org>
Date: Wed, 11 Oct 2023 18:13:27 +0200
Subject: [PATCH] fix(ls): catch error if there is no snapshot

---
 backupbot.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/backupbot.py b/backupbot.py
index 96c93c6..83e8991 100755
--- a/backupbot.py
+++ b/backupbot.py
@@ -201,7 +201,18 @@ def list_files(snapshot, path):
     cmd.append(snapshot)
     if path:
         cmd.append(path)
-    output = restic.internal.command_executor.execute(cmd)
+    try:
+        restic.cat.config()
+        output = restic.internal.command_executor.execute(cmd)
+    except ResticFailedError as error:
+        if 'no snapshot found' in str(error):
+            err_msg = f'There is no snapshot {snapshot}'
+            if SERVICE:
+                err_msg += f'for the app {SERVICE}'
+            logging.error(err_msg)
+            exit(1)
+        else:
+            raise error 
     output = output.replace('}\n{', '}|{')
     results = list(map(json.loads, output.split('|')))
     return results