#!/bin/bash
set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

cd /m/md/l/testignore/new
shopt -s nullglob

last_sec=0
for file in *; do
  if [[ $file -nt $latest ]]; then
    latest=$file
  fi
done

if [[ $latest ]]; then
  last_sec=$(awk '/^Subject: / {print $3}' $latest)
fi

now=$(date +%s)
limit=$(( now - 60 * 22 ))

if (( last_sec < limit )); then
  echo $HOSTNAME mailtest failure
  touch /nocow/mailtest-failure
else
  rm -f /nocow/mailtest-failure
fi

find -type f -mtime +1 -delete