fix: reload siteConfig.js automatically when locally served page is refreshed (#1509)

* fix: livereload siteConfig

* fix test

* nits

jest.config.js

@@ -15,7 +15,8 @@ module.exports = {
   testPathIgnorePatterns: [
     '/node_modules/',
     '__fixtures__',
-    '/packages/.*/lib',
+    '/packages/docusaurus/lib',
+    '/packages/docusaurus-utils/lib',
   ],
   transform: {
     '^.+\\.[jt]sx?$': 'babel-jest',

packages/docusaurus-1.x/lib/server/__tests__/blog.test.js

@@ -10,9 +10,9 @@ const blog = require('../blog');
 const metadataUtils = require('../metadataUtils');
 const {replaceAssetsLink} = require('../utils.js');
 
-jest.mock(`${process.cwd()}/siteConfig.js`, () => ({baseUrl: '/'}), {
-  virtual: true,
-});
+const siteConfig = {
+  baseUrl: '/',
+};
 
 const testFile = path.join(
   __dirname,
@@ -25,16 +25,18 @@ fs.existsSync = jest.fn().mockReturnValue(true);
 describe('getMetadata', () => {
   test('file does not exist', () => {
     fs.existsSync.mockReturnValueOnce(null);
-    expect(blog.getMetadata('/this/path/does-not-exist/')).toBeNull();
+    expect(
+      blog.getMetadata('/this/path/does-not-exist/', siteConfig),
+    ).toBeNull();
   });
 
   test('null/undefined', () => {
-    expect(blog.getMetadata(null)).toBeNull();
-    expect(blog.getMetadata(undefined)).toBeNull();
+    expect(blog.getMetadata(null, siteConfig)).toBeNull();
+    expect(blog.getMetadata(undefined, siteConfig)).toBeNull();
   });
 
   test('blog file', () => {
-    const metadata = blog.getMetadata(testFile);
+    const metadata = blog.getMetadata(testFile, siteConfig);
     expect(metadata).toMatchSnapshot();
     expect(metadata).not.toBeNull();
     expect(metadata).toHaveProperty('id');

packages/docusaurus-1.x/lib/server/__tests__/docs.test.js

@@ -71,6 +71,7 @@ describe('mdToHtmlify', () => {
   const siteConfig = {
     baseUrl: '/',
     docsUrl: 'docs',
+    cleanUrl: true,
   };
   const mdToHtml = metadataUtils.mdToHtml(Metadata, siteConfig);
 
@@ -79,6 +80,7 @@ describe('mdToHtmlify', () => {
       rawContent1,
       mdToHtml,
       Metadata['en-doc1'],
+      siteConfig,
     );
     expect(content1).not.toContain('/docs/en/next/');
     expect(content1).toMatchSnapshot();
@@ -90,6 +92,7 @@ describe('mdToHtmlify', () => {
       rawContent2,
       mdToHtml,
       Metadata['en-doc2'],
+      siteConfig,
     );
     expect(content2).toContain('/docs/en/next/');
     expect(content2).toMatchSnapshot();
@@ -111,6 +114,7 @@ describe('mdToHtmlify', () => {
       rawContent3,
       customMdToHtml,
       customMetadata['subdir-doc3'],
+      siteConfig,
     );
     expect(content3).toContain('/docs/subdir/doc3');
     expect(content3).not.toContain('subdir/doc3.md');
@@ -123,6 +127,7 @@ describe('mdToHtmlify', () => {
       rawContentRefLinks,
       mdToHtml,
       Metadata['en-reflinks'],
+      siteConfig,
     );
     expect(contentRefLinks).toContain('/docs/en/next/');
     expect(contentRefLinks).toMatchSnapshot();

packages/docusaurus-1.x/lib/server/__tests__/start.test.js

@@ -87,7 +87,7 @@ describe('start server', () => {
     const port = 1357;
     portFinder.getPortPromise.mockResolvedValue(port);
     return start.startServer().then(() => {
-      expect(server).toHaveBeenCalledWith(port);
+      expect(server).toHaveBeenCalledWith(port, 'localhost');
     });
   });
 

packages/docusaurus-1.x/lib/server/blog.js

@@ -4,16 +4,13 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
-const CWD = process.cwd();
+
 const React = require('react');
 const path = require('path');
 const fs = require('fs-extra');
 const metadataUtils = require('./metadataUtils');
 const {replaceAssetsLink} = require('./utils.js');
 const {renderToStaticMarkupWithDoctype} = require('./renderUtils');
-const loadConfig = require('./config');
-
-const siteConfig = loadConfig(`${CWD}/siteConfig.js`);
 
 function urlToSource(url) {
   if (!url || typeof url !== 'string') {
@@ -34,14 +31,14 @@ function fileToUrl(file) {
     .replace(/\.md$/, '.html');
 }
 
-function getPagesMarkup(numOfBlog, config) {
+function getPagesMarkup(numOfBlog, siteConfig) {
   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} />
+      <BlogPageLayout metadata={metadata} language="en" config={siteConfig} />
     );
     const str = renderToStaticMarkupWithDoctype(blogPageComp);
     const pagePath = `${page > 0 ? `page${page + 1}` : ''}/index.html`;
@@ -50,7 +47,7 @@ function getPagesMarkup(numOfBlog, config) {
   return blogPages;
 }
 
-function getMetadata(file) {
+function getMetadata(file, siteConfig) {
   if (!file || !fs.existsSync(file)) {
     return null;
   }
@@ -71,14 +68,14 @@ function getMetadata(file) {
   return metadata;
 }
 
-function getPostMarkup(file, config) {
-  const metadata = getMetadata(file);
+function getPostMarkup(file, siteConfig) {
+  const metadata = getMetadata(file, siteConfig);
   if (!metadata) {
     return null;
   }
   const BlogPostLayout = require('../core/BlogPostLayout.js');
   const blogPostComp = (
-    <BlogPostLayout metadata={metadata} language="en" config={config}>
+    <BlogPostLayout metadata={metadata} language="en" config={siteConfig}>
       {metadata.content}
     </BlogPostLayout>
   );

packages/docusaurus-1.x/lib/server/docs.js

@@ -9,9 +9,7 @@ const {join} = require('path');
 const {resolve} = require('url');
 const fs = require('fs-extra');
 const React = require('react');
-const loadConfig = require('./config');
 
-const siteConfig = loadConfig(`${CWD}/siteConfig.js`);
 const env = require('./env.js');
 const {renderToStaticMarkupWithDoctype} = require('./renderUtils');
 const readMetadata = require('./readMetadata.js');
@@ -19,8 +17,6 @@ const {insertTOC} = require('../core/toc.js');
 const {replaceAssetsLink} = require('./utils.js');
 const {getPath} = require('../core/utils.js');
 
-const docsPart = `${siteConfig.docsUrl ? `${siteConfig.docsUrl}/` : ''}`;
-
 function getFilePath(metadata) {
   if (!metadata) {
     return null;
@@ -51,7 +47,7 @@ function getFile(metadata) {
   return fs.readFileSync(file, 'utf8');
 }
 
-function mdToHtmlify(oldContent, mdToHtml, metadata) {
+function mdToHtmlify(oldContent, mdToHtml, metadata, siteConfig) {
   /* Store broken links */
   const mdBrokenLinks = [];
 
@@ -106,12 +102,12 @@ function mdToHtmlify(oldContent, mdToHtml, metadata) {
   return content;
 }
 
-function getMarkup(rawContent, mdToHtml, metadata) {
+function getMarkup(rawContent, mdToHtml, metadata, siteConfig) {
   // generate table of contents
   let content = insertTOC(rawContent);
 
   // replace any links to markdown files to their website html links
-  content = mdToHtmlify(content, mdToHtml, metadata);
+  content = mdToHtmlify(content, mdToHtml, metadata, siteConfig);
 
   // replace any relative links to static assets (not in fenced code blocks) to absolute links
   const docsAssetsLocation = siteConfig.docsUrl
@@ -130,7 +126,8 @@ function getMarkup(rawContent, mdToHtml, metadata) {
   );
 }
 
-function getRedirectMarkup(metadata) {
+function getRedirectMarkup(metadata, siteConfig) {
+  const docsPart = `${siteConfig.docsUrl ? `${siteConfig.docsUrl}/` : ''}`;
   if (
     !env.translation.enabled ||
     !metadata.permalink.includes(`${docsPart}en`)

packages/docusaurus-1.x/lib/server/feed.js

@@ -26,7 +26,7 @@ module.exports = function(type) {
 
   type = type || 'rss';
 
-  readMetadata.generateMetadataBlog();
+  readMetadata.generateMetadataBlog(siteConfig);
   const MetadataBlog = require('../core/MetadataBlog.js');
 
   const feed = new Feed({

packages/docusaurus-1.x/lib/server/generate.js

@@ -79,12 +79,12 @@ async function execute() {
       return;
     }
     const rawContent = metadataUtils.extractMetadata(file).rawContent;
-    const str = docs.getMarkup(rawContent, mdToHtml, metadata);
+    const str = docs.getMarkup(rawContent, mdToHtml, metadata, siteConfig);
     const targetFile = join(buildDir, metadata.permalink);
     writeFileAndCreateFolder(targetFile, str);
 
     // generate english page redirects when languages are enabled
-    const redirectMarkup = docs.getRedirectMarkup(metadata);
+    const redirectMarkup = docs.getRedirectMarkup(metadata, siteConfig);
     if (!redirectMarkup) {
       return;
     }
@@ -111,7 +111,7 @@ async function execute() {
   if (fs.existsSync(join(__dirname, '..', 'core', 'MetadataBlog.js'))) {
     fs.removeSync(join(__dirname, '..', 'core', 'MetadataBlog.js'));
   }
-  readMetadata.generateMetadataBlog();
+  readMetadata.generateMetadataBlog(siteConfig);
   const MetadataBlog = require('../core/MetadataBlog.js');
 
   let files = glob.sync(join(CWD, 'blog', '**', '*.*'));

packages/docusaurus-1.x/lib/server/readMetadata.js

@@ -360,7 +360,7 @@ function generateMetadataDocs() {
 }
 
 // process metadata for blog posts and save into core/MetadataBlog.js
-function generateMetadataBlog() {
+function generateMetadataBlog(config = siteConfig) {
   const metadatas = [];
 
   const files = glob.sync(`${CWD}/blog/**/*.*`);
@@ -372,7 +372,7 @@ function generateMetadataBlog() {
       if (extension !== '.md' && extension !== '.markdown') {
         return;
       }
-      const metadata = blog.getMetadata(file);
+      const metadata = blog.getMetadata(file, config);
       // Extract, YYYY, MM, DD from the file name
       const filePathDateArr = path.basename(file).split('-');
       metadata.date = new Date(

packages/docusaurus-1.x/lib/server/server.js

@@ -60,6 +60,18 @@ function execute(port, host) {
   let MetadataBlog;
   let siteConfig;
 
+  function reloadSiteConfig() {
+    const siteConfigPath = join(CWD, 'siteConfig.js');
+    removeModuleAndChildrenFromCache(siteConfigPath);
+    const oldBaseUrl = siteConfig && siteConfig.baseUrl;
+    siteConfig = loadConfig(siteConfigPath);
+
+    if (oldBaseUrl && oldBaseUrl !== siteConfig.baseUrl) {
+      console.log('Base url has changed. Please restart server ...');
+      process.exit();
+    }
+  }
+
   function reloadMetadata() {
     removeModuleAndChildrenFromCache('./readMetadata.js');
     readMetadata.generateMetadataDocs();
@@ -72,16 +84,11 @@ function execute(port, host) {
       removeModuleAndChildrenFromCache(join('..', 'core', 'MetadataBlog.js'));
       fs.removeSync(join(__dirname, '..', 'core', 'MetadataBlog.js'));
     }
-    readMetadata.generateMetadataBlog();
+    reloadSiteConfig();
+    readMetadata.generateMetadataBlog(siteConfig);
     MetadataBlog = require(join('..', 'core', 'MetadataBlog.js'));
   }
 
-  function reloadSiteConfig() {
-    const siteConfigPath = join(CWD, 'siteConfig.js');
-    removeModuleAndChildrenFromCache(siteConfigPath);
-    siteConfig = loadConfig(siteConfigPath);
-  }
-
   function requestFile(url, res, notFoundCallback) {
     request.get(url, (error, response, body) => {
       if (!error) {
@@ -119,10 +126,11 @@ function execute(port, host) {
       next();
       return;
     }
+    reloadSiteConfig();
     const rawContent = metadataUtils.extractMetadata(file).rawContent;
     removeModuleAndChildrenFromCache('../core/DocsLayout.js');
     const mdToHtml = metadataUtils.mdToHtml(Metadata, siteConfig);
-    res.send(docs.getMarkup(rawContent, mdToHtml, metadata));
+    res.send(docs.getMarkup(rawContent, mdToHtml, metadata, siteConfig));
   });
 
   app.get(routing.sitemap(siteConfig), (req, res) => {
@@ -177,6 +185,7 @@ function execute(port, host) {
   });
 
   app.get(routing.page(siteConfig), (req, res, next) => {
+    reloadSiteConfig();
     // Look for user-provided HTML file first.
     let htmlFile = req.path.toString().replace(siteConfig.baseUrl, '');
     htmlFile = join(CWD, 'pages', htmlFile);

packages/docusaurus-1.x/lib/server/sitemap.js

@@ -23,7 +23,7 @@ const readMetadata = require('./readMetadata.js');
 readMetadata.generateMetadataDocs();
 const Metadata = require('../core/metadata.js');
 
-readMetadata.generateMetadataBlog();
+readMetadata.generateMetadataBlog(siteConfig);
 const MetadataBlog = require('../core/MetadataBlog.js');
 
 module.exports = function(callback) {