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path: root/ubuntu/precise/applications/kpowersave-nohal/debian/preinst
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#! /bin/sh

set -e

package_name=kpowersave-nohal-trinity

if [ -z "$package_name" ]; then
    print >&2 "Internal Error. Please report a bug."
    exit 1;
fi

case "$1" in
  install)
    divert=`dpkg-divert --listpackage "/etc/acpi/powerbtn.sh"`
    if [ -n "$divert" ] && [ "$divert" = "LOCAL" ]; then
        dpkg-divert --remove --local --rename "/etc/acpi/powerbtn.sh"
        divert=""
    fi
    dpkg-divert --package $package_name --divert /etc/acpi/powerbtn.sh.distrib --rename /etc/acpi/powerbtn.sh
    ;;
  upgrade)
    divert=`dpkg-divert --listpackage "/etc/acpi/powerbtn.sh"`
    if [ -n "$divert" ] && [ "$divert" = "LOCAL" ]; then
        dpkg-divert --remove --local --rename "/etc/acpi/powerbtn.sh"
        divert=""
    fi
    if [ -z "$divert" ]; then
      dpkg-divert --package $package_name --divert /etc/acpi/powerbtn.sh.distrib --rename /etc/acpi/powerbtn.sh
    fi
    ;;
  abort-upgrade)
    ;;
  *) echo "$0: didn't understand being called with \`$1'" 1>&2
     exit 0;;
esac

exit 0