display_error() {
	tput sgr0
	tput setaf 1
	echo "ERROR: $1"
	tput sgr0
	return 1
}

function gvm_pkgset_use() {
	[[ $gvm_go_name != "" ]] || 
		display_error "No Go version selected"

	fuzzy_match=`ls $GVM_ROOT/environments | grep "$gvm_go_name@" | grep "$1"` ||
		display_error "Invalid package set"

	. "$GVM_ROOT/environments/$gvm_go_name@$1" ||
		display_error "Failed to source the package set environment"

	echo "Now using version $fuzzy_match"
}