rsync-backup

#!/bin/bash

# Make backups with rsync and echo the output to journald
# Send notifications to a matrix server (via separate matrix-client-script)
# Author: Zjemm
# Email: mail [at] sjemm {dot} net
# Please use/share/comment/reference
# Date: 23-08-2017
# Version 0.4
# Requirements: fonts-symbola

# Usage: run this script with arguments
# Example: ./rsync-backup /home/music /backup/
# Where "/home/music" will be $1 and "/backup/"" will be $2

# Set a username to notify for error's
# For example all messages may be muted in a room, except for "User Mentions"
# This way you will only be notified when there is an error using the username here
USER=UsertoNotify

# Create a VAR of the rsync output to be used in the notification message
OUTPUT=$(rsync -a --delete $1 $2)

case $? in
  0)
    echo "Backup of $1 Success" | systemd-cat -t rsync -p info
    notify-matrix "✅ Backup of $1 Success"
    ;;
  1)
    echo "Backup of $1 Failed - Syntax or usage error" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  2)
    echo "Backup of $1 Failed - Protocol incompatibility" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  3)
    echo "Backup of $1 Failed - Errors selecting input/output files, dirs" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  4)
    echo "Backup of $1 Failed - Requested action not supported: an attempt was made to manipulate 64-bit files on a platform that cannot support them; or an option was specified that is supported by the client and not by the server." | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  5)
    echo "Backup of $1 Failed - Error starting client-server protocol" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  6)
    echo "Backup of $1 Failed - Daemon unable to append to log-file" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  10)
    echo "Backup of $1 Failed - Error in socket I/O" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  11)
    echo "Backup of $1 Failed - Error in file I/O" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  12)
    echo "Backup of $1 Failed - Error in rsync protocol data stream" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  13)
    echo "Backup of $1 Failed - Errors with program diagnostics" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  14)
    echo "Backup of $1 Failed - Error in IPC code" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  20)
    echo "Backup of $1 Failed - Received SIGUSR1 or SIGINT" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  21)
    echo "Backup of $1 Failed - Some error returned by waitpid()" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  22)
    echo "Backup of $1 Failed - Error allocating core memory buffers" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  23)
    echo "Backup of $1 Failed - Partial transfer due to error" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  24)
    echo "Backup of $1 Failed - Partial transfer due to vanished source files" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  25)
    echo "Backup of $1 Failed - The --max-delete limit stopped deletions" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  30)
    echo "Backup of $1 Failed - Timeout in data send/receive" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  35)
    echo "Backup of $1 Failed - Timeout waiting for daemon connection" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
    ;;
  *)
    echo "Backup of $1 Failed - Unknown return code $? from rsync" | systemd-cat -t rsync -p info
    notify-matrix "⛔ $USER: Backup of $1 Failed"
esac