#! /bin/sh
# preinst script for file-rc
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
#
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

# see #812337 + #285835, #805487
divert() {

  dpkg-divert --package file-rc --add --rename \
    --divert /usr/sbin/update-rc.d.init-system-helpers /usr/sbin/update-rc.d

  dpkg-divert --package file-rc --add --rename \
    --divert /usr/sbin/invoke-rc.d.init-system-helpers /usr/sbin/invoke-rc.d

  dpkg-divert --package file-rc --add --rename \
    --divert /usr/share/man/man8/update-rc.d.8.gz.init-system-helpers /usr/share/man/man8/update-rc.d.8.gz

  dpkg-divert --package file-rc --add --rename \
    --divert /usr/share/man/man8/invoke-rc.d.8.gz.init-system-helpers /usr/share/man/man8/invoke-rc.d.8.gz
}

case "$1" in
    install)
      divert
    ;;

    upgrade)
      if dpkg --compare-versions "$2" lt 0.8.17 ; then
        divert
      fi
    ;;

    abort-upgrade)
    ;;

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

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0
