Invoice Ninja Checker

#Simple script to check the current release of Invoice Ninja against what you have installed.
#If you're current, installed will show the version number in green. If not current, in red.
#Set "ninja_installed" to whatever the path is to your install's version.txt.
#If you're using the auto-update script with cron, uncomment the bottom section and change
#"cronjobtime" to whatever time you have the script set to run (HH:MM format) and it will tell
#you if the update is going to run "today" or "tomorrow" based on what time you run the checker
#(no good way to check the cron list directly). Drop in your /etc/update-motd.d/ if you want this
#to run every time you login via terminal or SSH. Just save it with the appropriate number to
#control where in the motd the output appears. As usual, use at your own risk.

#!/bin/bash
ninja_installed=$(cat "/var/www/ninja/storage/version.txt")
ninja_current="$((wget -T 15 -qO- https://invoiceninja.org/index.php) | (grep -oP 'Download Version \K[0-9]+\.[0-9]+(\.[0-9]+)'))"

update_required="no"
set -f
array_ninja_installed=(${ninja_installed//./ })
array_ninja_current=(${ninja_current//./ })

if (( ${#array_ninja_installed[@]} == "2" ))
then
    array_ninja_installed+=("0")
fi

for ((i=0; i<${#array_ninja_installed[@]}; i++))
do
    if (( ${array_ninja_installed[$i]} < ${array_ninja_current[$i]} ))
    then
    update_required="yes"
    fi
done

printf '\n|==============================|'
printf '\n| Invoice Ninja Version Status |'
printf '\n|==============================|'
printf '\n| Current Release       \033[1;32mv%s\033[0m%s |' "$ninja_current"
case $update_required in
    no)
    printf '\n| Installed Version     \033[1;32mv%s\033[0m%s |' "$ninja_installed"
    ;;
    yes)
    printf '\n| Installed Version     \033[1;31mv%s\033[0m%s |' "$ninja_installed"
    ;;
esac
printf '\n|==============================|\n'

#case $update_required in
#    no)
#    ;;
#    yes)
#    connecttime=$(date "+%H%M")
#    cronjobtime="18:00"
#    if (( "10#$connecttime" < "10#${cronjobtime//:}" ))
#        then
#            printf '\n\033[1;31mInvoice Ninja will update TODAY at %s\033[0m\n' "$cronjobtime"
#        else
#            printf '\n\033[1;32mInvoice Ninja will update TOMORROW at %s\033[0m\n' "$cronjobtime"
#    fi
#    ;;
#esac