is_backing_up.zsh

#!/bin/zsh
path+=(/opt/homebrew/bin /Applications/Arq.app/Contents/Resources/)

plans=($(arqc listBackupPlans 2>/dev/null | awk -F'[= \t]' '/UUID/ {print $2}'))

for plan in $plans; do
	msg=$(arqc latestBackupActivityJSON $plan 2>/dev/null | jq -r '.message')
	if [[ $msg == "Backing up"* ]]; then
		echo yes
		exit 0
	fi
done
echo no