Saving any skill with Google APIs will now fail if NPM dependencies change

[attaboy]

It no longer seems possible to guarantee we have compatible versions of the Google API/client libraries, because google-auth-library depends on gtoken ^2.3.0, and gtoken 2.3.2 depends on gaxios, which is broken in node 6.10.

There is a hack we can use mentioned here: googleapis/gaxios#44 (comment)

Adding this code where the google-auth-library is used makes things run again, but the real solution is twofold:

• switching to node 8
• freezing NPM dependencies

const url = require('url'); // legacy Node6 url
const semver = require('semver');
class Node6CompatibilityURL {
  constructor(str) {
    this.url = url.parse(str);
    this.origin = this.url.protocol + '//';
    this.pathname = this.url.pathname ? this.url.pathname : '';
    this.search = this.url.search ? this.url.search : '';
    this.href = this.url.href ? this.url.href : '';
  }
}

if (semver.lt(process.version, '6.13.0')) {
  window = {};
  window.URL = Node6CompatibilityURL; // no warranty 😱 
}