Merge lp:~hloeung/ubuntu-repository-cache/suppress-output-reduce-cron-spam into lp:ubuntu-repository-cache

[Haw Loeung]

Suppress output reducing cron mail spam

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[Paul Collins (pjdc)]

Might want to consider whether we still want mail if there's stderr.

review: Approve

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision 334

=== modified file 'lib/ubuntu_repository_cache/metadata_sync.py'
--- lib/ubuntu_repository_cache/metadata_sync.py	2021-03-02 02:40:04 +0000
+++ lib/ubuntu_repository_cache/metadata_sync.py	2021-05-11 02:34:07 +0000
@@ -14,7 +14,7 @@
 from datetime import datetime
 from itertools import cycle
 
-from subprocess import CalledProcessError, check_call, check_output, STDOUT
+from subprocess import CalledProcessError, check_call, check_output, DEVNULL, STDOUT
 
 from .util import (
     FileSemaphore,
@@ -281,7 +281,7 @@
 
     log("Executing hook: {}".format(cmd))
 
-    check_call(cmd)
+    check_call(cmd, stdout=DEVNULL)
 
     return meta_ver