#!/bin/bash -e

cd /etc/

[ -d letsencrypt~ ] \
&& diff -rq letsencrypt/ letsencrypt~/ \
&& exit 0

F=`date "+%Y%m%d"`.tar.gz
( echo "Subject: New /etc/letsencrypt/ on Droplet."
  echo ""
  ( echo "Content-Type: multipart/mixed; boundary=\"boundary\""
    echo "MIME-Version: 1.0"
    echo ""
    echo "--boundary"
    echo "Content-Type: application/gzip; name=\"$F\""
    echo "Content-Disposition: attachment; filename=\"$F\""
    echo "Content-Transfer-Encoding: base64"
    echo ""
    tar czf - letsencrypt/ | base64
    echo ""
    echo "--boundary--" ) \
  | gpg --encrypt --armor \
	--trust-model always --recipient root@core ) \
| sendmail root \
|| exit $?

rm -rf letsencrypt~
cp -a letsencrypt letsencrypt~