Synnefo » snf-image

#!/bin/bash

# Copyright 2011 GRNET S.A. All rights reserved.

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. @commondir@/common.sh

set -e

set -o pipefail

if [ "x$1" != "x--force" ]; then

    log_error "WARNING: This will cause the system to halt."

    log_error "Use --force if you know what you're doing."

    exit 1

fi

# terminate helper vm when the script exits

add_cleanup telinit 0

if [ ! -b "$FLOPPY_DEV" ]; then

    log_error "Floppy device is not present!"

fi

floppy=$(mktemp -d --tmpdir floppy.XXXXXX)

add_cleanup rmdir "$floppy"

mount $FLOPPY_DEV $floppy

add_cleanup umount "$floppy"

if [ -f "$floppy/rules" ]; then

    source "$floppy/rules"

else

    log_error "Floppy does not contain \`rules\' file"

fi

# Image mount point...

target=$(mktemp -d --tmpdir target.XXXXXX)

add_cleanup rmdir "$target"

export SNF_IMAGE_TARGET="$target"

if [ ! -d "@tasksdir@" ]; then

    log_error "snf-image/tasks directory is missing"

fi

RUN_PARTS=$(which run-parts)

if [ -z "$RUN_PARTS" ]; then

    log_error "run-parts programe is missing from the system"

fi

# If something goes wrong with the tasks, try to umount the target filesystem

# in case it is left mounted...

trap '{ umount "$target"; }' ERR

echo "Execute all snf-image tasks...."

$RUN_PARTS -v --exit-on-error "@tasksdir@"

# Disable the trap. If code reaches here, the filesystem is unmounted.

trap - ERR

echo "SUCCESS" > "$RESULT"

cleanup

trap - EXIT

# never called...

exit 0

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