#!/bin/sh

set -e

# Source debconf library
. /usr/share/debconf/confmodule

check_chroot_names() {
    list="$(schroot --list --all | LC_ALL=C grep -vE '^[a-z]+:[a-zA-Z0-9][a-zA-Z0-9_.-]*$' | sed -e 's/^/ * /')"
    if [ "$list" ]; then
        # Always show this alert
        db_fset schroot/bad-names seen false
        db_capb escape
        db_subst schroot/bad-names LIST "$(printf '%s' "$list" | debconf-escape -e)"
        db_input critical schroot/bad-names || true
        db_go
        exit 1
    fi
}

case "$1" in
    install) ;;

    upgrade)
        if dpkg --compare-versions "$2" 'lt' '1.6.12-2~'; then
            check_chroot_names
        fi
        ;;

    abort-upgrade) ;;

    *)
        echo "preinst called with unknown argument '$1'" >&2
        exit 1
        ;;
esac

# Automatically added by dh_installinit/13.11.8
if [ "$1" = "install" ] && [ -n "$2" ] && [ -e "/etc/init.d/schroot" ] ; then
	chmod +x "/etc/init.d/schroot" >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.11.8
if [ -z "${DPKG_ROOT:-}" ] && [ "$1" = upgrade ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'schroot.service' >/dev/null || true
fi
# End automatically added section

exit 0