chore(v2): use null-loader for non css module in server bundle (#1388)

* chore(v2): use null-loader for non css module in server bundle

* take out nprogress.css

* css nits

packages/docusaurus/lib/client/PendingNavigation.js

@@ -8,8 +8,8 @@
 import React from 'react';
 import {Route, withRouter} from 'react-router-dom';
 import nprogress from 'nprogress';
-import 'nprogress/nprogress.css';
 import preload from './preload';
+import './nprogress.css';
 
 nprogress.configure({showSpinner: false});
 

packages/docusaurus/lib/client/nprogress.css

@@ -0,0 +1,75 @@
+/**
+ * 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.
+ */
+
+/* Make clicks pass-through */
+#nprogress {
+  pointer-events: none;
+}
+
+#nprogress .bar {
+  background: #29d;
+  position: fixed;
+  z-index: 1031;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 2px;
+}
+
+/* Fancy blur effect */
+#nprogress .peg {
+  display: block;
+  position: absolute;
+  right: 0px;
+  width: 100px;
+  height: 100%;
+  box-shadow: 0 0 10px #29d, 0 0 5px #29d;
+  opacity: 1.0;
+  -webkit-transform: rotate(3deg) translate(0px, -4px);
+  -ms-transform: rotate(3deg) translate(0px, -4px);
+  transform: rotate(3deg) translate(0px, -4px);
+}
+
+/* Remove these to get rid of the spinner */
+#nprogress .spinner {
+  display: block;
+  position: fixed;
+  z-index: 1031;
+  top: 15px;
+  right: 15px;
+}
+
+#nprogress .spinner-icon {
+  width: 18px;
+  height: 18px;
+  box-sizing: border-box;
+  border: solid 2px transparent;
+  border-top-color: #29d;
+  border-left-color: #29d;
+  border-radius: 50%;
+  -webkit-animation: nprogress-spinner 400ms linear infinite;
+  animation: nprogress-spinner 400ms linear infinite;
+}
+
+.nprogress-custom-parent {
+  overflow: hidden;
+  position: relative;
+}
+
+.nprogress-custom-parent #nprogress .spinner,
+.nprogress-custom-parent #nprogress .bar {
+  position: absolute;
+}
+
+@-webkit-keyframes nprogress-spinner {
+  0%   { -webkit-transform: rotate(0deg); }
+  100% { -webkit-transform: rotate(360deg); }
+}
+@keyframes nprogress-spinner {
+  0%   { transform: rotate(0deg); }
+  100% { transform: rotate(360deg); }
+}

packages/docusaurus/lib/webpack/utils.js

@@ -10,18 +10,27 @@ const cacheLoaderVersion = require('cache-loader/package.json').version;
 const merge = require('webpack-merge');
 
 // Utility method to get style loaders
-function getStyleLoaders(isServer, cssOptions) {
+function getStyleLoaders(isServer, cssOptions = {}) {
+  if (isServer) {
+    // https://github.com/webpack-contrib/mini-css-extract-plugin/issues/90#issuecomment-380796867
+    return [
+      cssOptions.modules
+        ? {
+            loader: require.resolve('css-loader/locals'),
+            options: cssOptions,
+          }
+        : require.resolve('null-loader'),
+    ];
+  }
+
   const isProd = process.env.NODE_ENV === 'production';
   const loaders = [
-    !isServer &&
-      isProd && {
-        loader: MiniCssExtractPlugin.loader,
-      },
-    !isServer && !isProd && require.resolve('style-loader'),
+    isProd && {
+      loader: MiniCssExtractPlugin.loader,
+    },
+    !isProd && require.resolve('style-loader'),
     {
-      loader: isServer
-        ? require.resolve('css-loader/locals')
-        : require.resolve('css-loader'),
+      loader: require.resolve('css-loader'),
       options: cssOptions,
     },
   ].filter(Boolean);

packages/docusaurus/package.json

@@ -56,6 +56,7 @@
     "lodash": "^4.17.11",
     "mini-css-extract-plugin": "^0.4.1",
     "nprogress": "^0.2.0",
+    "null-loader": "^1.0.0",
     "portfinder": "^1.0.13",
     "react-dev-utils": "^8.0.0",
     "react-helmet": "^6.0.0-beta",

yarn.lock

@@ -9547,6 +9547,14 @@ nth-check@^1.0.2, nth-check@~1.0.1:
   dependencies:
     boolbase "~1.0.0"
 
+null-loader@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/null-loader/-/null-loader-1.0.0.tgz#90e85798e50e9dd1d568495a44e74829dec26744"
+  integrity sha512-mYLDjDVTkjTlFoidxRhzO75rdcwfVXfw5G5zpj8sXnBkHtKJxMk4hTcRR4i5SOhDB6EvcQuYriy6IV23eq6uog==
+  dependencies:
+    loader-utils "^1.2.3"
+    schema-utils "^1.0.0"
+
 num2fraction@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"