#!/bin/sh

# Date in RFC5322 on UTC TZ
CURR_DATE=$(date --utc --iso-8601=seconds)
UPDATED_FILTERS=$(git status --porcelain filters | awk 'match($1, "A") || match($1, "M") || match($1, "?") {print $2}')

OLDIFS="$IFS"
IFS="
"
for filter in $UPDATED_FILTERS; do
  sed -i "s/! Last modified:.*/! Last modified: $CURR_DATE/g" "$filter"
done
IFS="$OLDIFS"