bashup/sbin/bashup-restore-mysql.sh
2024-08-15 12:58:40 -07:00

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#!/bin/bash
#
# Bashup - A set of bash scripts for managing backups.
# https://git.stack-source.com/msb/bashup
# MIT License Copyright (c) 2021 Matthew Saunders Brown
# load include file
source $(dirname $0)/bashup.sh
help()
{
thisfilename=$(basename -- "$0")
echo "Bashup - A set of bash scripts for managing backups."
echo "https://git.stack-source.com/msb/bashup"
echo "MIT License Copyright (c) 2021 Matthew Saunders Brown"
echo ""
echo "Restore database from backup."
echo ""
echo "Usage: $thisfilename [-b <backupdate>] [-d <database>] [-n] [-h]"
echo ""
echo " -b <backupdate> Backup date/archive to restore from."
echo " -d <database> Database to restore."
echo " -n Dry-run - don't actually restore, just echo commands needed for restore."
echo " -h Print this help."
echo " You will be prompted to select backup date and/or"
echo " database name from a list of available options"
echo " if they are not specified on the command line."
exit
}
# set any options that were passed
while getopts "b:d:nh" opt; do
case "${opt}" in
h )
help
exit;;
b )
backup=${OPTARG}
;;
d )
database=${OPTARG}
;;
n )
dryrun=true
;;
\? )
echo "Invalid option: $OPTARG" 1>&2
exit 1;;
: )
echo "Invalid option: $OPTARG requires an argument" 1>&2
exit 1;;
esac
done
bashup::set-existing_backups
# prompt if backup was not set on command line
if [ -z "$backup" ] ; then
# select backup to restore from
PS3="Select number of backup to restore from: "
existing_backups_len=${#existing_backups[@]}
select backup in ${existing_backups[@]}
do
if [[ $REPLY -gt 0 ]] && [[ $REPLY -le $existing_backups_len ]]; then
echo $backup
break
else
echo "ERROR: Invalid entry, try again."
fi
done
fi
# set dump if database was set via command option
if [ ! -z "$database" ] ; then
dump="$database.sql.gz"
else
if [ -d $backup_storage_dir/$backup/mysql ]; then
# get list of dbs in backup
existing_dumps=($(ls $backup_storage_dir/$backup/mysql))
# set array with names of dbs (without .sql.gz suffix)
declare -a existing_dumps_db_names
for existing_dump in "${existing_dumps[@]}"; do
existing_dumps_db_name="$(basename $existing_dump .sql.gz)"
existing_db_names+=("$existing_dumps_db_name")
done
# select database dump to restore
PS3="Select number of database to restore: "
existing_db_names_len=${#existing_db_names[@]}
select database in ${existing_db_names[@]}
do
if [[ $REPLY -gt 0 ]] && [[ $REPLY -le $existing_db_names_len ]]; then
dump=$database.sql.gz
break
else
echo "ERROR: Invalid entry, try again."
fi
done
else
echo "ERROR: Backup dir for $backup/mysql/ does not exist."
exit 1
fi
fi
# check that dump exists and restore it now
if [ -d $backup_storage_dir/$backup ]; then
if [ -f $backup_storage_dir/$backup/mysql/$dump ]; then
if [[ -n $dryrun ]]; then
echo $MOUNT
echo "/usr/bin/zcat $backup_storage_dir/$backup/mysql/$dump | mysql --defaults-extra-file=$mysql_defaults_extra_file $database"
echo $UMOUNT
else
echo "running:"
echo "/usr/bin/zcat $backup_storage_dir/$backup/mysql/$dump | mysql --defaults-extra-file=$mysql_defaults_extra_file $database"
/usr/bin/zcat $backup_storage_dir/$backup/mysql/$dump | mysql --defaults-extra-file=$mysql_defaults_extra_file $database
fi
else
echo "ERROR: Dump for database $database does not exist in the $backup backup dir."
exit 1
fi
else
echo "ERROR: Backup dir for $backup does not exist."
exit 1
fi
bashup::unmount_storage_dir
exit 0