wukong-feed/index.js

A wukong plugin for generating feed.

'use strict';

var RSS = require('rss');
var join = require('path').join;

/**
 * Expose `feed`.
 */

module.exports = feed;

/**
 *  Wukong plugin to hide drafts.
 *
 *  @return {GeneratorFunction}
 */

function feed(opts) {
  if (!opts || typeof opts === 'string') opts = { type: 'atom' };
  var type = opts.type;
  var limit = opts.limit || 20;
  var fpath = opts.path || '';
  var feedUrl = opts.url;
  var path = opts.path || 'feed.xml';

  return function *feed(next) {
    var files = this.files;
    var dest = this.wukong.destination();
    var metadata = this.wukong.metadata();
    var siteUrl = metadata.site_url = metadata.url || metadata.site_url || '';
    metadata.feed_url = feedUrl || (siteUrl + '/' + path);
    var f = new RSS(metadata);
    var post, link;
    for (var k in files) {
      post = files[k];
      link = join(siteUrl, post.path);
      f.item({
        title: post.title,
        description: post.contents.toString(),
        url: link,
        link: post.link || link,
        author: post.author,
        pubDate: post.date
      });
    }
    var file = this.wukong.createFile();
    file.path = path;
    file.contents = f.xml();
    yield file.write();
    yield next;
  };
}