#!/bin/sh

set -e

if [ -f /usr/lib/calendar/default ]; then
  mv -f /usr/lib/calendar/default /etc/calendar/default.old

  # don't kill installation if directory can't be removed
  rmdir /usr/lib/calendar 2>/dev/null || true
fi

# handle name change of cron script
if [ -f /etc/cron.daily/calendar ]; then
  mv -f /etc/cron.daily/calendar /etc/cron.daily/bsdmainutils
fi

if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] ; then
    update-alternatives \
	--install /usr/bin/write write /usr/bin/bsd-write 100 \
	--slave /usr/share/man/man1/write.1.gz write.1.gz /usr/share/man/man1/bsd-write.1.gz

    update-alternatives \
	--install /usr/bin/from from /usr/bin/bsd-from 10 \
	--slave /usr/share/man/man1/from.1.gz from.1.gz /usr/share/man/man1/bsd-from.1.gz
fi