text: 'use strict';
  var semver = require('semver');
  
  module.exports = function (version, type) {
  	if (['major', 'minor', 'patch'].indexOf(type) === -1) {
  		throw new TypeError('Invalid version type');
  	}
  
  	version = semver.parse(version, {loose: true});
  
  	if (!version) {
  		throw new Error('Version ' + version + ' is not valid semver');
  	}
  
  	version.build = '';
  	version.prerelease = '';
  
  	if (type === 'minor') {
  		version.patch = 0;
  	}
  
  	if (type === 'major') {
  		version.patch = 0;
  		version.minor = 0;
  	}
  
  	return version.format();
  };
  