WordpressRestore.sh

#!/bin/bash

#
# Bash script for restoring backups of Wordpress.
#
# Version 0.1.0
#
# Usage:
#   - With backup directory specified in the script: ./WordpressRestore.sh <BackupName> (e.g. ./WordpressRestore.sh 20170910_132703)
#   - With backup directory specified by parameter: ./WordpressRestore.sh <BackupName> <BackupDirectory> (e.g. ./WordpressRestore.sh 20170910_132703 /media/hdd/wordpress_backup)
#

#
# IMPORTANT
# You have to customize this script (directories, users, etc.) for your actual environment.
# All entries which need to be customized are tagged with "TODO".
#

# Variables
restore=$1
backupMainDir=$2

if [ -z "$backupMainDir" ]; then
	# TODO: The directory where you store the Wordpress backups (when not specified by args)
    backupMainDir='/media/hdd/wordpress_backup'
fi

echo "Backup directory: $backupMainDir"

currentRestoreDir="${backupMainDir}/${restore}"

# TODO: The directory of your Wordpress installation (this is a directory under your web root)
wordpressFileDir='/var/www/wordpress'

# TODO: The service name of the web server. Used to start/stop web server (e.g. 'systemctl start <webserverServiceName>')
webserverServiceName='nginx'

# TODO: Your web server user
webserverUser='www-data'

# TODO: Your Wordpress database name
wordpressDatabase='wordpress_db'

# TODO: Your Wordpress database user
dbUser='wordpress_db_user'

# TODO: The password of the Wordpress database user
dbPassword='mYpAsSw0rd'

# File name for file backup
# If you prefer another file name, you'll also have to change the WordpressBackup.sh script.
fileNameBackupFileDir='wordpress-filedir.tar.gz'

# File name for database dump
fileNameBackupDb='wordpress-db.sql'

# Function for error messages
errorecho() { cat <<< "$@" 1>&2; }

#
# Check if parameter(s) given
#
if [ $# != "1" ] && [ $# != "2" ]
then
    errorecho "ERROR: No backup name to restore given, or wrong number of parameters!"
    errorecho "Usage: WordpressRestore.sh 'BackupDate' ['BackupDirectory']"
    exit 1
fi

#
# Check for root
#
if [ "$(id -u)" != "0" ]
then
    errorecho "ERROR: This script has to be run as root!"
    exit 1
fi

#
# Check if backup dir exists
#
if [ ! -d "${currentRestoreDir}" ]
then
	errorecho "ERROR: Backup ${restore} not found!"
    exit 1
fi

#
# Check if the commands for restoring the database are available
#
 if ! [ -x "$(command -v mysql)" ]; then
    errorecho "ERROR: MySQL/MariaDB not installed (command mysql not found)."
    errorecho "ERROR: No restore of database possible!"
    errorecho "Cancel restore"
    exit 1
fi

#
# Stop web server
#
echo "Stopping web server..."
systemctl stop "${webserverServiceName}"
echo "Done"
echo

#
# Delete old Wordpress directory
#

# File directory
echo "Deleting old Wordpress file directory..."
rm -r "${wordpressFileDir}"
mkdir -p "${wordpressFileDir}"
echo "Done"
echo

#
# Restore file directory
#

# File directory
echo "Restoring Wordpress file directory..."
tar -xmpzf "${currentRestoreDir}/${fileNameBackupFileDir}" -C "${wordpressFileDir}"
echo "Done"
echo

#
# Restore database
#
echo "Dropping old Wordpress DB..."
 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "DROP DATABASE ${wordpressDatabase}"
echo "Done"
echo

echo "Creating new DB for Wordpress..."
mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "CREATE DATABASE ${wordpressDatabase}"
echo "Done"
echo

echo "Restoring backup DB..."
mysql -h localhost -u "${dbUser}" -p"${dbPassword}" "${wordpressDatabase}" < "${currentRestoreDir}/${fileNameBackupDb}"
echo "Done"
echo

#
# Start web server
#
echo "Starting web server..."
systemctl start "${webserverServiceName}"
echo "Done"
echo

#
# Set directory permissions
#
echo "Setting directory permissions..."
chown -R "${webserverUser}":"${webserverUser}" "${wordpressFileDir}"
echo "Done"
echo

echo
echo "DONE!"
echo "Backup ${restore} successfully restored."