A pre-backup script for using with Duplicacy backups

Duplicacy pre-backup script

#!/bin/bash

# Gather current power status
AC_POWER=`ioreg -l | grep ExternalConnected | cut -d"=" -f2 | sed -e 's/ //g'`

# Gather details about current wifi network
WIFI_NETWORK=`networksetup -getairportnetwork en0 | grep 'Current Wi-Fi Network' | cut -c 24-`

# Specify the name of your home / office wifi network here
HOME_WIFI=my_home_wifi

ON_HOME_WIFI=No

if [[ "$WIFI_NETWORK" == "$HOME_WIFI" ]]
then
    ON_HOME_WIFI=Yes
fi

# Enter IP address or hostname of your storage server here
STORAGE_SERVER="my_server.local"

# Work out if specified server is reachable
REACHABLE=No

ping -c1 -W1 -q $STORAGE_SERVER &>/dev/null
status=$( echo $? )
if [[ $status == 0 ]]
then
    REACHABLE=Yes
fi

echo On AC Power: $AC_POWER
echo Current Wifi Network: $WIFI_NETWORK
echo On Home Wifi: $ON_HOME_WIFI
echo Server Reachable: $REACHABLE

# Uncomment this to abort backup if running on battery
if [ "$AC_POWER" == "No" ]
then
    echo Aborting: Not running on AC power
    exit 1
fi

# Uncomment this to abort backup if the storage server is not reachable
if [ "$REACHABLE" == "No" ]
then
    echo Aborting: Storage server not reachable
    exit 1
fi

# Uncomment this to abort backup if you are not on the specified wifi network
if [ "$ON_HOME_WIFI" == "No" ]
then
    echo Aborting: Not on home wifi
    exit 1
fi