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|
#!/bin/sh
set -eu
usage() {
cat <<-'EOF'
Usage: cronjob COMMAND...
EOF
}
if [ -z "${1:-}" ]; then
printf 'Missing COMMAND.\n\n' >&2
usage >&2
exit 2
fi
duration() {
minutes=$((${1} / 60))
seconds=$((${1} % 60))
printf '%sm%ss' "$minutes" "$seconds"
}
CMD="$*"
HOSTNAME="$(hostname)"
FROM="cronjob@$HOSTNAME"
TIMEOUT='10800' # three hours
STATUS_F="$(mkstemp)"
OUT="$(mkstemp)"
email() {
{
cat <<-EOF
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: $FROM
To: root@localhost
Subject: (exit status: $(cat "$STATUS_F")) - $HOSTNAME: $CMD
EOF
cat "$OUT"
} | sendmail -t -f "$FROM"
rm -f "$OUT" "$STATUS_F"
}
trap email EXIT
{
cat <<-EOF
Running commad: $CMD
Starting at: $(timestamp -E)
EOF
START="$(now)"
STATUS=0
timeout "$TIMEOUT" "$@" || STATUS=$?
printf '%s' "$STATUS" > "$STATUS_F"
END="$(now)"
DURATION_SECONDS=$((END - START))
cat <<-EOF
Finished at: $(timestamp -E)
Duration: $(duration "$DURATION_SECONDS")
EOF
} 2>&1 | pre 'cron' | ts '%Y-%m-%dT%H:%M:%S' | tee "$OUT" >> /var/log/cronjobs.log
|
