function generateFeed(file, context, options = {}) {
  const baseOutputPath = path.join(global.WF.src.content, 'shows');
  const outputFile = options.outputPath ?
    path.join(options.outputPath, file) : path.join(baseOutputPath, file);
  const template = path.join(global.WF.src.templates, file);
  wfTemplateHelper.renderTemplate(template, context, outputFile);
}
Renders the RSS or ATOM template based on the context.

@param {string} file File to generate.
@param {!Object} context Context to use when rendering.
@param {!Object} options Options used to generate the feed