#!/usr/bin/env bash

set -e

LOGFILE=$1

mindate=$(head -n1 $LOGFILE | cut -f1 | cut -d'T' -f1)
maxdate=$(date --date="-6 days" -u -Id)

echo "Deleting log lines from ${mindate} to ${maxdate}"

sed -i -E "/${mindate}/,/${maxdate}/d" $LOGFILE

echo "Cleared logs"