#!/bin/sh

BOOM_CONFIG="/etc/default/boom"

. $BOOM_CONFIG

BOOM_USE_SUBMENU="${BOOM_USE_SUBMENU:-yes}"

BOOM_SUBMENU_NAME="${BOOM_SUBMENU_NAME:-Snapshots}"

BOOM_ENABLE_GRUB="${BOOM_ENABLE_GRUB:-no}"

# Indentation for body of submenu commands

SUBMENU_PREFIX="    "

INSMOD_CMD="insmod blscfg"

IMPORT_CMD="bls_import"

# Test whether boom grub menu entries are enabled

if [ "$BOOM_ENABLE_GRUB" = "no" -o "$BOOM_ENABLE_GRUB" = "n" ]; then

	exit

fi

# Do not generate grub configuration unless boom entries have

# been configured.

if [ -z "$(boom list --noheadings)" ]; then

	exit

fi

# Optional submenu support

if [ "$BOOM_USE_SUBMENU" = "yes" -o "$BOOM_SUBMENU_NAME" = "y" ]; then

	echo "submenu \"$BOOM_SUBMENU_NAME\" {"

	echo "${SUBMENU_PREFIX}${INSMOD_CMD}"

	echo "${SUBMENU_PREFIX}${IMPORT_CMD}"

	echo "}"

else

	echo ${INSMOD_CMD}

	echo ${IMPORT_CMD}

fi