#!/bin/bash

usage() { echo "Usage: $0 [ major | minor | patch ]" 1>&2; exit 1; }

version_type=$1
if [ "$version_type" == "major" ] || [ "$version_type" == "minor" ] || [ "$version_type" == "patch" ]; then
  new_version=$(npm version "$version_type" --no-git-tag-version) || exit
  echo "$new_version"
else
  usage
fi