#!/bin/bash

################################################################################
# Backup Preparations Script
# --------------------------
#
# This script should be run before performing a backup as it will do some
# preparations. This script searches in all directories in
# PRE_BACKUP_SCRIPT_DIRS for all executable scripts called
# `pre_borg_backup.sh`. Every found script is executed and should do any
# preparing action for a full system backup, such as dumping a database of a
# docker container.
#
# Author: Robin Meier - robin@meier.si
################################################################################

# Load configuration
script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
set -o allexport
source ${script_dir}/config/backup > /dev/null 2>&1
set +o allexport

# Import logging functionality
logfile=${script_dir}/log/backup.log
log_identifier="PREPAR"
source ${script_dir}/functions/logging.sh

# Exit if no backup script dirs are found
if [[ -z "$PRE_BACKUP_SCRIPT_DIRS" ]]; then
  exit 0
fi

highest_exit=0

log "Preparations Started"

for directory in $PRE_BACKUP_SCRIPT_DIRS; do
  for script in $(find $directory -name pre_borg_backup.sh -executable); do
    log "$(date +%Y%m%d_%H%M%S) Running script $script"

    $script >> ${script_dir}/log/backup.log 2>&1

    script_exit=$?

    highest_exit=$(( script_exit > highest_exit ? script_exit : highest_exit ))
  done
done

log "Preparations Finished"

exit $highest_exit