chore: move to monorepo (#1297)

* chore: move to monorepo

* lint all js file

* simplify circleCI

* fix failing tests

* fix tests due to folder rename

* fix test since v1 website is renamed

packages/docusaurus/lib/commands/build.js

@@ -0,0 +1,103 @@
+/**
+ * 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 webpack = require('webpack');
+const CleanWebpackPlugin = require('clean-webpack-plugin');
+const path = require('path');
+const chalk = require('chalk');
+const fs = require('fs-extra');
+const globby = require('globby');
+const load = require('../load');
+const createSitemap = require('../core/sitemap');
+const createServerConfig = require('../webpack/server');
+const createClientConfig = require('../webpack/client');
+const {applyConfigureWebpack} = require('../webpack/utils');
+
+function compile(config) {
+  return new Promise((resolve, reject) => {
+    webpack(config, (err, stats) => {
+      if (err) {
+        reject(err);
+      }
+      if (stats.hasErrors()) {
+        stats.toJson().errors.forEach(e => {
+          console.error(e);
+        });
+        reject(new Error('Failed to compile with errors.'));
+      }
+      if (stats.hasWarnings()) {
+        stats.toJson().warnings.forEach(warning => {
+          console.warn(warning);
+        });
+      }
+      resolve(stats.toJson({modules: false}));
+    });
+  });
+}
+
+module.exports = async function build(siteDir) {
+  process.env.NODE_ENV = 'production';
+  console.log('Build command invoked ...');
+
+  const props = await load(siteDir);
+
+  // Apply user webpack config.
+  const {
+    outDir,
+    siteConfig: {configureWebpack},
+  } = props;
+
+  const clientConfigObj = createClientConfig(props);
+  // Remove/clean build folders before building bundles.
+  clientConfigObj
+    .plugin('clean')
+    .use(CleanWebpackPlugin, [outDir, {verbose: false, allowExternal: true}]);
+  const serverConfigObj = createServerConfig(props);
+  const clientConfig = applyConfigureWebpack(
+    configureWebpack,
+    clientConfigObj.toConfig(),
+    false,
+  );
+  const serverConfig = applyConfigureWebpack(
+    configureWebpack,
+    serverConfigObj.toConfig(),
+    true,
+  );
+
+  // Build the client bundles first.
+  // We cannot run them in parallel because the server needs to know
+  // the correct client bundle name.
+  await compile(clientConfig);
+
+  // Build the server bundles (render the static HTML and pick client bundle),
+  await compile(serverConfig);
+
+  // Copy static files.
+  const staticDir = path.resolve(siteDir, 'static');
+  const staticFiles = await globby(['**'], {
+    cwd: staticDir,
+  });
+  await Promise.all(
+    staticFiles.map(async source => {
+      const fromPath = path.resolve(staticDir, source);
+      const toPath = path.resolve(outDir, source);
+      return fs.copy(fromPath, toPath);
+    }),
+  );
+
+  // Generate sitemap.
+  const sitemap = await createSitemap(props);
+  const sitemapPath = path.join(outDir, 'sitemap.xml');
+  await fs.writeFile(sitemapPath, sitemap);
+
+  const relativeDir = path.relative(process.cwd(), outDir);
+  console.log(
+    `\n${chalk.green('Success!')} Generated static files in ${chalk.cyan(
+      relativeDir,
+    )}.\n`,
+  );
+};