#!/bin/sh

set -e

#DEBHELPER#

case "$1" in
  configure)

    if test -n "$2"; then # got old version so this is an update

        # TODO: Can be dropped with some 9.x stable release, this was never in a publicly available
        # package, so only for convenience for internal testing setups.
        if dpkg --compare-versions "$2" 'lt' '9.0.5'; then
            if grep -Pq '^\texternal-snapshots ' /etc/pve/storage.cfg; then
                echo "Replacing old 'external-snapshots' with 'snapshot-as-volume-chain' in /etc/pve/storage.cfg"
                sed -i 's/^\texternal-snapshots /\tsnapshot-as-volume-chain /' /etc/pve/storage.cfg || \
                    echo "Failed to replace old 'external-snapshots' with 'snapshot-as-volume-chain' in /etc/pve/storage.cfg"
            fi
        fi

    fi
    ;;

esac

exit 0