WARNING: This relyes at the moment on a php script to parse the translation files. It was just more easy, to start off with my existing utilities. Please open a issue on github, if you want to give it a try, then I migrate.
So long I'll just happy use it as it is for myself :)
A plugin to read and write i18n translationsfrom and to google spreadsheets
npm install google-spreadsheet-translation-sync
var translator = require('google-spreadsheet-translation-sync');
In lieu of a formal style guide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code.