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/blog.js

@@ -0,0 +1,86 @@
+/**
+ * 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 React = require('react');
+const path = require('path');
+const fs = require('fs-extra');
+const {renderToStaticMarkupWithDoctype} = require('./renderUtils');
+const metadataUtils = require('./metadataUtils');
+
+function urlToSource(url) {
+  if (!url || typeof url !== 'string') {
+    return null;
+  }
+  return url
+    .replace(/\/index.html$/, '.md')
+    .replace(/\.html$/, '.md')
+    .replace(new RegExp('/', 'g'), '-');
+}
+
+function fileToUrl(file) {
+  if (!file || !fs.existsSync(file) || typeof file !== 'string') {
+    return null;
+  }
+  return path
+    .basename(file)
+    .replace('-', '/')
+    .replace('-', '/')
+    .replace('-', '/')
+    .replace(/\.md$/, '.html');
+}
+
+function getPagesMarkup(numOfBlog, config) {
+  const BlogPageLayout = require('../core/BlogPageLayout.js');
+  const blogPages = {};
+  const perPage = 10;
+  for (let page = 0; page < Math.ceil(numOfBlog / perPage); page++) {
+    const metadata = {page, perPage};
+    const blogPageComp = (
+      <BlogPageLayout metadata={metadata} language="en" config={config} />
+    );
+    const str = renderToStaticMarkupWithDoctype(blogPageComp);
+    const pagePath = `${page > 0 ? `page${page + 1}` : ''}/index.html`;
+    blogPages[pagePath] = str;
+  }
+  return blogPages;
+}
+
+function getMetadata(file) {
+  if (!file || !fs.existsSync(file)) {
+    return null;
+  }
+  const result = metadataUtils.extractMetadata(
+    fs.readFileSync(file, {encoding: 'utf8'}),
+  );
+  const metadata = Object.assign(
+    {path: fileToUrl(file), content: result.rawContent},
+    result.metadata,
+  );
+  metadata.id = metadata.title;
+  return metadata;
+}
+
+function getPostMarkup(file, config) {
+  const metadata = getMetadata(file);
+  if (!metadata) {
+    return null;
+  }
+  const BlogPostLayout = require('../core/BlogPostLayout.js');
+  const blogPostComp = (
+    <BlogPostLayout metadata={metadata} language="en" config={config}>
+      {metadata.content}
+    </BlogPostLayout>
+  );
+  return renderToStaticMarkupWithDoctype(blogPostComp);
+}
+
+module.exports = {
+  fileToUrl,
+  getMetadata,
+  getPagesMarkup,
+  getPostMarkup,
+  urlToSource,
+};