mirror of
https://github.com/aljazceru/addons.git
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113 lines
3.9 KiB
Bash
Executable File
113 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# shellcheck source=/dev/null
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#
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# simple backup script to create a CCU compatible .sbk type
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# backup out of the core-homematic HomeAssistant add-on
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#
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# Copyright (c) 2022 Jens Maus <mail@jens-maus.de>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Usage:
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# createBackup.sh <directory/file>
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#
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# Stop on error
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set -e
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# default backup destination directory
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BACKUPDIR=/tmp
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# let caller overwrite the backup path
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if [[ -n "${1}" ]]; then
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BACKUPPATH="${1}"
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else
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echo "ERROR: no backup path specified"
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fi
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# get running firmware version
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. /VERSION 2>/dev/null
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# check if specified path is a directory or file
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if [[ -d "${BACKUPPATH}" ]]; then
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# a directory path was specified, lets construct the complete filepath
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BACKUPDIR="$(realpath "${BACKUPPATH}")"
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BACKUPFILE="$(hostname)-${VERSION}-$(date +%Y-%m-%d-%H%M).sbk"
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else
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# a file was specified with a directory path
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BACKUPDIR="$(realpath "$(dirname "${BACKUPPATH}")")"
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BACKUPFILE="$(basename "${BACKUPPATH}")"
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fi
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# use the backupdir as base directory for creating
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# a temporary directory to create the backup stuff in there.
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TMPDIR=$(mktemp -d -p "${BACKUPDIR}")
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if [[ -d "${TMPDIR}" ]]; then
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# make sure TMPDIR is removed under all circumstances
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# shellcheck disable=SC2064
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trap "rm -rf ${TMPDIR}" EXIT
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# make sure ReGaHSS saves its current settings
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echo 'load tclrega.so; rega system.Save()' | /opt/hm/bin/tclsh >/dev/null 2>&1
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# create a CCU conform copy of /usr/local
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mkdir -p "${TMPDIR}/usr/local"
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mkdir -p "${TMPDIR}/usr/local/etc/config"
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cp -a /opt/hm/etc/config/* "${TMPDIR}/usr/local/etc/config/"
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rm -f "${TMPDIR}/usr/local/etc/config/groups.gson" "${TMPDIR}/usr/local/etc/config/userprofiles"
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cp -a /data/* "${TMPDIR}/usr/local/etc/config/"
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# move crRFD files to data sub-dir to be compatible
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mkdir -p "${TMPDIR}/usr/local/etc/config/crRFD/data"
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mv "${TMPDIR}/usr/local/etc/config/crRFD/*" "${TMPDIR}/usr/local/etc/config/crRFD/data/" 2>/dev/null
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# cleanup
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rm -f "${TMPDIR}/usr/local/etc/config/options.json"
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rm -f "${TMPDIR}/usr/local/etc/config/groups.json"
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rm -f "${TMPDIR}/usr/local/etc/config/HMServer.conf"
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rm -f "${TMPDIR}/usr/local/etc/config/hmip_user.conf"
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rm -f "${TMPDIR}/usr/local/etc/config/log4j.xml"
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rm -f "${TMPDIR}/usr/local/etc/config/rega.conf"
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rm -f "${TMPDIR}/usr/local/etc/config/rega_user.conf"
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# create a gzipped tar of /usr/local
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set +e # disable abort on error
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/bin/tar -C "${TMPDIR}" --owner=root --group=root --exclude=usr/local/tmp --exclude=usr/local/lost+found --exclude="${BACKUPDIR}" --exclude-tag=.nobackup --ignore-failed-read --warning=no-file-changed -czf "${TMPDIR}/usr_local.tar.gz" usr/local 2>/dev/null
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if [[ $? -eq 2 ]]; then
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exit 2
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fi
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set -e # re-enable abort on error
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# remove the temp usr dir again
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rm -rf "${TMPDIR:?}/usr"
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# sign the configuration with the current key
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/opt/hm/bin/crypttool -s -t 1 <"${TMPDIR}/usr_local.tar.gz" >"${TMPDIR}/signature"
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# store the current key index
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/opt/hm/bin/crypttool -g -t 1 >"${TMPDIR}/key_index"
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# store the firmware VERSION
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echo "VERSION=${VERSION}" >"${TMPDIR}/firmware_version"
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# create sha256 checksum of all files
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(cd "${TMPDIR}" && /usr/bin/sha256sum ./* >signature.sha256)
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# create sbk file
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/bin/tar -C "${TMPDIR}" --owner=root --group=root -cf "${BACKUPDIR}/${BACKUPFILE}" usr_local.tar.gz signature signature.sha256 key_index firmware_version 2>/dev/null
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exit 0
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else
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exit 1
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fi
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