Move Docusaurus 1 files into directory (#966)

* Move Docusaurus 1 into v1 directory

* Update Circle CI commands for new v1 dir

* Remove OC

* Fix tests

v1/lib/server/feed.js

@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+const Feed = require('feed');
+const truncateHtml = require('truncate-html');
+
+const BLOG_POST_SUMMARY_LENGTH = 250;
+
+const CWD = process.cwd();
+const siteConfig = require(`${CWD}/siteConfig.js`);
+const readMetadata = require('./readMetadata.js');
+
+const blogRootURL = `${siteConfig.url + siteConfig.baseUrl}blog`;
+const siteImageURL =
+  siteConfig.url + siteConfig.baseUrl + siteConfig.headerIcon;
+const utils = require('../core/utils');
+
+const renderMarkdown = require('../core/renderMarkdown.js');
+
+module.exports = function(type) {
+  console.log('feed.js triggered...');
+
+  type = type || 'rss';
+
+  readMetadata.generateMetadataBlog();
+  const MetadataBlog = require('../core/MetadataBlog.js');
+
+  const feed = new Feed({
+    title: `${siteConfig.title} Blog`,
+    description: `The best place to stay up-to-date with the latest ${
+      siteConfig.title
+    } news and events.`,
+    id: blogRootURL,
+    link: blogRootURL,
+    image: siteImageURL,
+    copyright: siteConfig.copyright,
+    updated: new Date(MetadataBlog[0].date),
+  });
+
+  MetadataBlog.forEach(post => {
+    const url = `${blogRootURL}/${post.path}`;
+    const description = utils.blogPostHasTruncateMarker(post.content)
+      ? renderMarkdown(utils.extractBlogPostBeforeTruncate(post.content))
+      : truncateHtml(renderMarkdown(post.content), BLOG_POST_SUMMARY_LENGTH);
+
+    feed.addItem({
+      title: post.title,
+      link: url,
+      author: [
+        {
+          name: post.author,
+          link: post.authorURL,
+        },
+      ],
+      date: new Date(post.date),
+      description,
+    });
+  });
+
+  return type === 'rss' ? feed.rss2() : feed.atom1();
+};