cylc play: add suggestion for --upgrade in non-interactive termin…

…al (#5535) add message on how to use --upgrade
cylc · May 18, 2023 · 31b6916 · 31b6916
1 parent a30f1d1
commit 31b6916
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/cylc/flow/scheduler_cli.py b/cylc/flow/scheduler_cli.py
@@ -523,6 +523,7 @@ def _version_check(
                     process=str.lower,
                 )
             # we are in non-interactive mode, abort abort abort
+            print('Use "--upgrade" to upgrade the workflow.', file=sys.stderr)
             return False
         elif itt > 2 and this > that:
             # restart would INCREASE the Cylc version in a little way