Get plaintext patchnotes from the command line

gistfile1.sh

function patchnotes {
	ua="Battle.net/1.0.8.4217"
	_baseurl="https://us.battle.net/connect/en/app"
	usage="usage: $0 <product> [live|ptr|beta]\nproduct is one of wow, s2, d3, wtcg"

	hash lynx 2>/dev/null || {
		echo "You need to install Lynx first."
		return 1
	}

	if [[ $1 == ("--help"|"-h") ]]; then
		echo $usage
		return 0
	fi

	if [[ $# == 0 || $1 != ("wow"|"s2"|"d3"|"wtcg") ]]; then
		echo $usage
		return 1
	fi

	if [[ $# == 1 ]]; then
		product="live"
	else
		product=$2
	fi

	lynx -dump -useragent=$ua "$_baseurl/$1/patch-notes?productType=$product" 2> /dev/null
}