The disk_usage helper shells out to 'du -sh $path' for reporting in
the warning message. On the exact directories this script is meant
to warn about (a /var/lib/containerd accumulating millions of files
from months of unpruned builds), traversing the tree with du can
take minutes and stall the preflight indefinitely.
Wrap the call in 'timeout 5s' so the helper returns quickly even on
a pathologically slow filesystem. If the timeout binary is absent
(e.g. minimal busybox userland), the pipeline still exits 0 via the
existing '|| true' guard and usage stays empty — the warning still
prints, just without the size detail — so the change is backward
compatible.
Addresses an inline review comment from gemini-code-assist on the
open PR.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
44dd0021e4