- Output is read in 64 KiB chunks and split into lines here; a line past
64 KiB is cut and marked instead of raising out of readline's limit.
- ansible-playbook runs in its own session; whatever ends the read (finish,
an error, the task being cancelled) SIGTERMs then SIGKILLs its whole group,
so no ssh or worker it forked outlives the run.
- A run whose task is cancelled (shutdown) records 'cancelled' with
finished_at before re-raising, instead of staying 'running'.
- A cancel that lands after the process exited 0 no longer turns a
successful run into 'cancelled'.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
