#! /bin/sh

PATH=/bin:/usr/bin:/usr/sbin

BOLTDB=/var/db/semaphore/database.boltdb
CONFIG=${PKG_PREFIX}/etc/semaphore/semaphore_config.json

boltwarning() {
cat <<EOF

  =========== BACKUP YOUR DATA! =============
  This installation appears to use BoltDB.

  Semaphore 2.19 dropped BoltDB support.  The
  service will not start while the configuration
  uses "dialect": "bolt", and simply changing the
  dialect creates an EMPTY database: projects,
  templates, access keys and the task history
  would appear to be lost.

  The data has to be imported with a Semaphore
  2.18 binary; 2.19 no longer ships the import
  tool.  This is *NOT* done by the port!
  See the ports UPDATING entry, 20260826, and
  https://semaphoreui.com/docs/admin-guide/cli/migrations
  ===========================================
EOF
}

case $2 in
PRE-INSTALL)
	if [ -f "${CONFIG}" ] && \
	    grep -qE '"dialect"[[:space:]]*:[[:space:]]*"bolt"' "${CONFIG}"; then
		boltwarning
	elif [ -f "${BOLTDB}" ]; then
		boltwarning
	fi
	;;
esac