eject暴露webpack配置信息
改造CRA项目，由react-app-rewired改为原生webpack构建
package.json（原）
"scripts": {
"start": "set PORT=3000 && react-app-rewired start",
"build": "react-app-rewired build",
"test": "node scripts/test.js --env=jsdom",
"lint": "eslint --ext .jsx --ext .js src --fix"
}复制代码eject（yarn eject）
在eject之前，需要在package.json中新增eject命令，如下：
"scripts": {
"start": "set PORT=3000 && react-app-rewired start",
"build": "react-app-rewired build",
"test": "node scripts/test.js --env=jsdom",
"lint": "eslint --ext .jsx --ext .js src --fix",
"eject": "react-scripts eject"// 新增eject
}复制代码暴露出项目的webpack配置（该过程不可逆，请谨慎处理）
代码结构（原）
.
├─ .eslintignore
├─ .eslintrc
├─ .gitignore
├─ .project
├─ README.md
├─ build
│ ├─ asset-manifest.json
│ ├─ favicon.ico
│ ├─ index.html
│ ├─ manifest.json
│ ├─ service-worker.js
│ └─ static
│ ├─ css
│ ├─ js
│ └─ media
├─ config-overrides.js
├─ package-lock.json
├─ package.json
├─ public
│ ├─ favicon.ico
│ ├─ index.html
│ └─ manifest.json
├─ src
│ ├─ assets
│ │ ├─ fonts
│ │ ├─ images
│ │ └─ styles
│ ├─ config
│ │ └─ index.js
│ ├─ containers
│ │ ├─ AccountCenter
│ │ ├─ AddAccount
│ │ ├─ CampaignDetail
│ │ ├─ CampaignPlaza
│ │ ├─ CaseDetail
│ │ ├─ DefaultPage
│ │ ├─ FinancialCenter
│ │ ├─ ForgetLoginPassword
│ │ ├─ ForgetTriggerEmailSuccess
│ │ ├─ HelpCenter
│ │ ├─ HelpCenterFromLand
│ │ ├─ LatestNews
│ │ ├─ MyCase
│ │ ├─ PaymentDetails
│ │ ├─ PaymentInfo
│ │ ├─ RegSuccess
│ │ ├─ RegisterStep1
│ │ ├─ RegisterStep2
│ │ ├─ RegisterStep3
│ │ ├─ ResetLoginPassword
│ │ ├─ ResetSuccess
│ │ ├─ ResetWithdrawPassword
│ │ ├─ Simplest
│ │ ├─ UpdateUserInfo
│ │ ├─ WithdrawDetails
│ │ └─ Withdrawals
│ ├─ index.js
│ ├─ layout
│ │ ├─ HomeFooter
│ │ ├─ HomeHeader
│ │ ├─ LandFooter
│ │ ├─ PureHeader
│ │ └─ TopHeader
│ ├─ locales
│ │ ├─ en_US.js
│ │ └─ zh_CN.js
│ ├─ registerServiceWorker.js
│ ├─ route
│ │ └─ index.js
│ ├─ sagas
│ │ └─ index.js
│ ├─ store
│ │ └─ index.js
│ ├─ utils
│ │ ├─ RSA.js
│ │ ├─ async-component.js
│ │ ├─ index.js
│ │ ├─ request.js
│ │ ├─ request1.js
│ │ └─ upload.js
│ └─ views
│ ├─ Home
│ ├─ Land
│ ├─ Login
│ └─ Register
└─ yarn.lock复制代码代码结构（新）
.
├─ .eslintignore
├─ .eslintrc
├─ .gitignore
├─ .project
├─ README.md
├─ build
│ ├─ asset-manifest.json
│ ├─ favicon.ico
│ ├─ index.html
│ ├─ manifest.json
│ ├─ service-worker.js
│ └─ static
│ ├─ css
│ ├─ js
│ └─ media
├─ config
│ ├─ env.js
│ ├─ jest
│ │ ├─ cssTransform.js
│ │ └─ fileTransform.js
│ ├─ paths.js// 路径信息
│ ├─ polyfills.js
│ ├─ webpack.config.dev.js// 开发环境配置信息
│ ├─ webpack.config.prod.js// 生产环境配合信息
│ └─ webpackDevServer.config.js
├─ config-overrides.js
├─ package-lock.json
├─ package.json
├─ public
│ ├─ favicon.ico
│ ├─ index.html
│ └─ manifest.json
├─ scripts
│ ├─ build.js
│ ├─ start.js
│ └─ test.js
├─ src
│ ├─ assets
│ │ ├─ fonts
│ │ ├─ images
│ │ └─ styles
│ ├─ config
│ │ └─ index.js
│ ├─ containers
│ │ ├─ AccountCenter
│ │ ├─ AddAccount
│ │ ├─ CampaignDetail
│ │ ├─ CampaignPlaza
│ │ ├─ CaseDetail
│ │ ├─ DefaultPage
│ │ ├─ FinancialCenter
│ │ ├─ ForgetLoginPassword
│ │ ├─ ForgetTriggerEmailSuccess
│ │ ├─ HelpCenter
│ │ ├─ HelpCenterFromLand
│ │ ├─ LatestNews
│ │ ├─ MyCase
│ │ ├─ PaymentDetails
│ │ ├─ PaymentInfo
│ │ ├─ RegSuccess
│ │ ├─ RegisterStep1
│ │ ├─ RegisterStep2
│ │ ├─ RegisterStep3
│ │ ├─ ResetLoginPassword
│ │ ├─ ResetSuccess
│ │ ├─ ResetWithdrawPassword
│ │ ├─ Simplest
│ │ ├─ UpdateUserInfo
│ │ ├─ WithdrawDetails
│ │ └─ Withdrawals
│ ├─ index.js
│ ├─ layout
│ │ ├─ HomeFooter
│ │ ├─ HomeHeader
│ │ ├─ LandFooter
│ │ ├─ PureHeader
│ │ └─ TopHeader
│ ├─ locales
│ │ ├─ en_US.js
│ │ └─ zh_CN.js
│ ├─ registerServiceWorker.js
│ ├─ route
│ │ └─ index.js
│ ├─ sagas
│ │ └─ index.js
│ ├─ store
│ │ └─ index.js
│ ├─ utils
│ │ ├─ RSA.js
│ │ ├─ async-component.js
│ │ ├─ index.js
│ │ ├─ request.js
│ │ ├─ request1.js
│ │ └─ upload.js
│ └─ views
│ ├─ Home
│ ├─ Land
│ ├─ Login
│ └─ Register
├─ yarn
├─ yarn-error.log
└─ yarn.lock复制代码可以发现，eject之后，新的代码结构较原代码结构主要是新增了config目录和scripts目录，其中config目录为webpack配置信息存放目录，scripts目录为脚本文件存放目录。
动态切换组件（Vue->React）
ESearch前端架构（Vue）
以上为一个Vue前端项目的基本架构，基于该项目思路，特将之前做过的一个单页面应用改造为一个多页面应用，其前端架构如下：
网红前端架构（React）
可以发现，Vue项目可以通过Vue特性v-bind:is，实现菜单-组件动态切换（类似于路由的作用）
通过Vue特性v-bind:is，实现菜单-组件动态切换（类似于路由的作用）
components: {
pageA: () => import("xxx/pageA"),
pageB: () => import("xxx/pageB"),
}
<component v-bind:is="pageA"/>
<component v-bind:is="pageB"/>复制代码类似地，React项目可以通过以下方法实现菜单-组件动态切换（类似于路由的作用）
import PageA from "@/containers/PageA";
import PageB from "@/containers/PageB";
import PageC from "@/containers/PageC";
const ComponentDict = {
'PageA': PageA,
'PageB': PageB,
'PageC': PageC
};
constructor() {
super();
this.state = {
currentComponentName: "PageA"
}
}
onClickMenuItem = ({key}) => {
this.setState({
currentComponentName: key
});
};
// 类似于查字典的方式，实现动态切换组件展示
const {currentComponentName} = this.state;
// currentComponentName为'PageA'，则展示组件PageA
// currentComponentName为'PageB'，则展示组件PageB
const CurrentComponent = ComponentDict[currentComponentName];// 动态切换组件展示
<Layout>
<Header>
<Menu onClick={this.onClickMenuItem}>
<Menu.Item key="PageA">PageA</Menu.Item>
<Menu.Item key="PageB">PageB</Menu.Item>
<Menu.Item key="PageC">PageC</Menu.Item>
</Menu>
</Header>
<Content>
<CurrentComponent/>
</Content>
</Layout>复制代码webpack配置修改
entry配置（定位：module.exports->entry，4个入口）
webpack.config.dev.js
// 单入口示例
/*
* entry: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
]
*
* */
entry: {
// We ship a few polyfills by default:
// require.resolve('./polyfills'),
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
// require.resolve('react-dev-utils/webpackHotDevClient'),
// Finally, this is your app's code:
// paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
// created by lyb 2019/08/03
// 多入口
index: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
],
login: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/login.js',
],
register: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/register.js',
],
main: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/main.js',
]
},复制代码webpack.config.prod.js
entry: {
// We ship a few polyfills by default:
// require.resolve('./polyfills'),
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
// require.resolve('react-dev-utils/webpackHotDevClient'),
// Finally, this is your app's code:
// paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
index: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
],
login: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/login.js',
],
register: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/register.js',
],
main: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/main.js',
]
}复制代码output配置（定位：module.exports->output）
webpack.config.dev.js
output: {
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,
// This does not produce a real file. It's just the virtual path that is
// served by WebpackDevServer in development. This is the JS bundle
// containing code from all our entry points, and the Webpack runtime.
// created by lyb 2019/08/03
// filename: 'static/js/bundle.js' -> filename: 'static/js/[name].js'
// 前者对应只有一个entry，后者对应多个entry，如果不改会报错
filename: 'static/js/[name].js',
// There are also additional JS chunk files if you use code splitting.
chunkFilename: 'static/js/[name].chunk.js',
// This is the URL that app is served from. We use "/" in development.
publicPath: publicPath,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: info =>
path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
}复制代码其中，特别注意filename配置项要从原始的'static/js/bundle.js'改为'static/js/[name].js'，否则会报错。
webpack.config.prod.js
output: {
// The build folder.
path: paths.appBuild,
// Generated JS file names (with nested folders).
// There will be one main bundle, and one file per asynchronous chunk.
// We don't currently advertise code splitting but Webpack supports it.
filename: 'static/js/[name].[chunkhash:8].js',
chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
// We inferred the "public path" (such as / or /my-project) from homepage.
publicPath: publicPath,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: info =>
path
.relative(paths.appSrc, info.absoluteResourcePath)
.replace(/\\/g, '/'),
}复制代码支持antd注入和less解析（定位：module.exports->module->rules->oneOf）
webpack.config.dev.js / webpack.config.prod.js（此处配置信息，开发环境和生产环境完全相同，定位：module.exports->module->rules->oneOf）
// Process JS with Babel.
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
plugins: [
[
require.resolve('babel-plugin-named-asset-import'),
{
loaderMap: {
svg: {
ReactComponent: '@svgr/webpack?-prettier,-svgo![path]',
},
},
},
],
// 注入antd，按需加载
["import", {
"libraryName": "antd",
"libraryDirectory": "es",
"style": true // `style: true` 会加载 less 文件
}],
],
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader turns CSS into JS modules that inject <style> tags.
// In production, we use a plugin to extract that CSS to a file, but
// in development "style" loader enables hot editing of CSS.
{
// eject后原始正则为/\.(css)$/，为了支持less文件，需要改为/\.(css|less)$/
test: /\.(css|less)$/,// test: /\.(css)$/ -> test: /\.(css|less)$/，新增less格式正则
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
// 引入less-loader，支持编译less文件
{
loader: require.resolve('less-loader'),
options: {
// 解决报错: Inline JavaScript is not enabled. Is it set in your options?
javascriptEnabled: true,
// antd全局个性化样式配置
modifyVars: {
'primary-color': '#ffa726',
'link-color': '#5e77ff'
}
},
}
],
}复制代码plugins配置（定位：module.exports->plugins）
webpack.config.dev.js（4个入口，新增4个HtmlWebpackPlugin）
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,// paths文件中定义路径
filename: 'index.html',
chunks: ['index']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.loginHtml,// paths文件中定义路径
filename: 'login.html',
chunks: ['login']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.registerHtml,// paths文件中定义路径
filename: 'register.html',
chunks: ['register']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.mainHtml,// paths文件中定义路径
filename: 'main.html',
chunks: ['main']
}),复制代码webpack.config.prod.js（4个入口，新增4个HtmlWebpackPlugin，此处生产环境的配置与开发环境的稍有不同）
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,// paths文件中定义路径
filename: 'index.html',
chunks: ['index'],// 指定chunks，分隔代码以按需加载
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.loginHtml,// paths文件中定义路径
filename: 'login.html',
chunks: ['login'],// 指定chunks，分隔代码以按需加载
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.registerHtml,// paths文件中定义路径
filename: 'register.html',
chunks: ['register'],// 指定chunks，分隔代码以按需加载
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.mainHtml,// paths文件中定义路径
filename: 'main.html',
chunks: ['main'],// 指定chunks，分隔代码以按需加载
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),复制代码打包
yarn build
打包成功后的文件夹目录结构
build
├─ asset-manifest.json
├─ favicon.ico
├─ index.html
├─ login.html
├─ main.html
├─ manifest.json
├─ register.html
├─ service-worker.js
└─ static
├─ css
│ ├─ index.a068eaf7.css
│ ├─ index.a068eaf7.css.map
│ ├─ login.2ff64c8e.css
│ ├─ login.2ff64c8e.css.map
│ ├─ main.c8e56e47.css
│ ├─ main.c8e56e47.css.map
│ ├─ register.e54b83db.css
│ └─ register.e54b83db.css.map
├─ js
│ ├─ index.2c0736bd.js
│ ├─ index.2c0736bd.js.map
│ ├─ login.fd841272.js
│ ├─ login.fd841272.js.map
│ ├─ main.080a9c11.js
│ ├─ main.080a9c11.js.map
│ ├─ register.d2b9d5a2.js
│ └─ register.d2b9d5a2.js.map
└─ media
├─ GB_bg.c4c2913b.png
├─ iconfont.26b4e298.eot
├─ iconfont.3e355800.svg
├─ iconfont.5cd1f541.ttf
├─ img07.c2e13bab.png
├─ img08.22d05748.png
└─ login_bg.165cc596.jpg复制代码可以看到，打包成功后的文件夹目录结构主要分为以下4部分
- html（分为index、login、register、main四个主页面）
- css（分为4个分割区）
- js（分为4个分割区）
- media（静态资源：图片、字体文件等）
完整webpack配置文件
webpack.config.dev.js
'use strict';
const autoprefixer = require('autoprefixer');
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const eslintFormatter = require('react-dev-utils/eslintFormatter');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const getClientEnvironment = require('./env');
const paths = require('./paths');
// Webpack uses `publicPath` to determine where the app is being served from.
// In development, we always serve from the root. This makes config easier.
const publicPath = '/';
// `publicUrl` is just like `publicPath`, but we will provide it to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
const publicUrl = '';
// Get environment variables to inject into our app.
const env = getClientEnvironment(publicUrl);
// This is the development configuration.
// It is focused on developer experience and fast rebuilds.
// The production configuration is different and lives in a separate file.
module.exports = {
// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
// See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
devtool: 'cheap-module-source-map',
// These are the "entry points" to our application.
// This means they will be the "root" imports that are included in JS bundle.
// The first two entry points enable "hot" CSS and auto-refreshes for JS.
// created by lyb 2019/08/03
// 单入口示例
/*
* entry: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
]
*
* */
entry: {
// We ship a few polyfills by default:
// require.resolve('./polyfills'),
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
// require.resolve('react-dev-utils/webpackHotDevClient'),
// Finally, this is your app's code:
// paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
// created by lyb 2019/08/03
// 多入口
index: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
],
login: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/login.js',
],
register: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/register.js',
],
main: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/main.js',
]
},
output: {
// Add /* filename */ comments to generated require()s in the output.
pathinfo: true,
// This does not produce a real file. It's just the virtual path that is
// served by WebpackDevServer in development. This is the JS bundle
// containing code from all our entry points, and the Webpack runtime.
// created by lyb 2019/08/03
// filename: 'static/js/bundle.js' -> filename: 'static/js/[name].js'
// 前者对应只有一个entry，后者对应多个entry，如果不改会报错
filename: 'static/js/[name].js',
// There are also additional JS chunk files if you use code splitting.
chunkFilename: 'static/js/[name].chunk.js',
// This is the URL that app is served from. We use "/" in development.
publicPath: publicPath,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: info =>
path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
},
resolve: {
// This allows you to set a fallback for where Webpack should look for modules.
// We placed these paths second because we want `node_modules` to "win"
// if there are any conflicts. This matches Node resolution mechanism.
// https://github.com/facebookincubator/create-react-app/issues/253
modules: ['node_modules', paths.appNodeModules].concat(
// It is guaranteed to exist because we tweak it in `env.js`
process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
),
// These are the reasonable defaults supported by the Node ecosystem.
// We also include JSX as a common component filename extension to support
// some tools, although we do not recommend using it, see:
// https://github.com/facebookincubator/create-react-app/issues/290
// `web` extension prefixes have been added for better support
// for React Native Web.
extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
alias: {
// Support React Native Web
// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
'react-native': 'react-native-web',
'@': paths.appSrc
},
plugins: [
// Prevents users from importing files from outside of src/ (or node_modules/).
// This often causes confusion because we only process files within src/ with babel.
// To fix this, we prevent you from importing files out of src/ -- if you'd like to,
// please link the files into your node_modules/ and let module-resolution kick in.
// Make sure your source files are compiled, as they will not be processed in any way.
new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
],
},
module: {
strictExportPresence: true,
rules: [
// TODO: Disable require.ensure as it's not a standard language feature.
// We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
// { parser: { requireEnsure: false } },
// First, run the linter.
// It's important to do this before Babel processes the JS.
{
test: /\.(js|jsx|mjs)$/,
enforce: 'pre',
use: [
{
options: {
formatter: eslintFormatter,
eslintPath: require.resolve('eslint'),
},
loader: require.resolve('eslint-loader'),
},
],
include: paths.appSrc,
},
{
// "oneOf" will traverse all following loaders until one will
// match the requirements. When no loader matches it will fall
// back to the "file" loader at the end of the loader list.
oneOf: [
// "url" loader works like "file" loader except that it embeds assets
// smaller than specified limit in bytes as data URLs to avoid requests.
// A missing `test` is equivalent to a match.
{
test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]',
},
},
// Process JS with Babel.
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
plugins: [
[
require.resolve('babel-plugin-named-asset-import'),
{
loaderMap: {
svg: {
ReactComponent: '@svgr/webpack?-prettier,-svgo![path]',
},
},
},
],
// 按需加载
["import", {
"libraryName": "antd",
"libraryDirectory": "es",
"style": true // `style: true` 会加载 less 文件
}],
],
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader turns CSS into JS modules that inject <style> tags.
// In production, we use a plugin to extract that CSS to a file, but
// in development "style" loader enables hot editing of CSS.
{
test: /\.(css|less)$/,// test: /\.(css)$/ -> test: /\.(css|less)$/，新增less格式正则
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
// 编译 less 文件
{
loader: require.resolve('less-loader'),
options: {
// 解决报错: Inline JavaScript is not enabled. Is it set in your options?
javascriptEnabled: true,
modifyVars: {
'primary-color': '#ffa726',
'link-color': '#5e77ff'
}
},
}
],
},
// "file" loader makes sure those assets get served by WebpackDevServer.
// When you `import` an asset, you get its (virtual) filename.
// In production, they would get copied to the `build` folder.
// This loader doesn't use a "test" so it will catch all modules
// that fall through the other loaders.
{
// Exclude `js` files to keep "css" loader working as it injects
// its runtime that would otherwise processed through "file" loader.
// Also exclude `html` and `json` extensions so they get processed
// by webpacks internal loaders.
exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
loader: require.resolve('file-loader'),
options: {
name: 'static/media/[name].[hash:8].[ext]',
},
},
],
},
// ** STOP ** Are you adding a new loader?
// Make sure to add the new loader(s) before the "file" loader.
],
},
plugins: [
// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In development, this will be an empty string.
new InterpolateHtmlPlugin(env.raw),
// Generates an `index.html` file with the <script> injected.
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
filename: 'index.html',
chunks: ['index']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.loginHtml,
filename: 'login.html',
chunks: ['login']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.registerHtml,
filename: 'register.html',
chunks: ['register']
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.mainHtml,
filename: 'main.html',
chunks: ['main']
}),
// Add module names to factory functions so they appear in browser profiler.
new webpack.NamedModulesPlugin(),
// Makes some environment variables available to the JS code, for example:
// if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
new webpack.DefinePlugin(env.stringified),
// This is necessary to emit hot updates (currently CSS only):
new webpack.HotModuleReplacementPlugin(),
// Watcher doesn't work well if you mistype casing in a path so we use
// a plugin that prints an error when you attempt to do this.
// See https://github.com/facebookincubator/create-react-app/issues/240
new CaseSensitivePathsPlugin(),
// If you require a missing module and then `npm install` it, you still have
// to restart the development server for Webpack to discover it. This plugin
// makes the discovery automatic so you don't have to restart.
// See https://github.com/facebookincubator/create-react-app/issues/186
new WatchMissingNodeModulesPlugin(paths.appNodeModules),
// Moment.js is an extremely popular library that bundles large locale files
// by default due to how Webpack interprets its code. This is a practical
// solution that requires the user to opt into importing specific locales.
// https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
// You can remove this if you don't use Moment.js:
new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
],
// Some libraries import Node modules but don't use them in the browser.
// Tell Webpack to provide empty mocks for them so importing them works.
node: {
dgram: 'empty',
fs: 'empty',
net: 'empty',
tls: 'empty',
child_process: 'empty',
},
// Turn off performance hints during development because we don't do any
// splitting or minification in interest of speed. These warnings become
// cumbersome.
performance: {
hints: false,
},
};复制代码webpack.config.prod.js
'use strict';
const autoprefixer = require('autoprefixer');
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const ManifestPlugin = require('webpack-manifest-plugin');
const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin');
const eslintFormatter = require('react-dev-utils/eslintFormatter');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
// webpack打包分析工具
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const paths = require('./paths');
const getClientEnvironment = require('./env');
// Webpack uses `publicPath` to determine where the app is being served from.
// It requires a trailing slash, or the file assets will get an incorrect path.
const publicPath = paths.servedPath;
// Some apps do not use client-side routing with pushState.
// For these, "homepage" can be set to "." to enable relative asset paths.
const shouldUseRelativeAssetPaths = publicPath === './';
// Source maps are resource heavy and can cause out of memory issue for large source files.
const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
// `publicUrl` is just like `publicPath`, but we will provide it to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
const publicUrl = publicPath.slice(0, -1);
// Get environment variables to inject into our app.
const env = getClientEnvironment(publicUrl);
// Assert this just to be safe.
// Development builds of React are slow and not intended for production.
if (env.stringified['process.env'].NODE_ENV !== '"production"') {
throw new Error('Production builds must have NODE_ENV=production.');
}
// Note: defined here because it will be used more than once.
const cssFilename = 'static/css/[name].[contenthash:8].css';
// ExtractTextPlugin expects the build output to be flat.
// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
// However, our output is structured with css, js and media folders.
// To have this structure working with relative paths, we have to use custom options.
const extractTextPluginOptions = shouldUseRelativeAssetPaths
? // Making sure that the publicPath goes back to to build folder.
{publicPath: Array(cssFilename.split('/').length).join('../')}
: {};
// This is the production configuration.
// It compiles slowly and is focused on producing a fast and minimal bundle.
// The development configuration is different and lives in a separate file.
module.exports = {
// Don't attempt to continue if there are any errors.
bail: true,
// We generate sourcemaps in production. This is slow but gives good results.
// You can exclude the *.map files from the build during deployment.
devtool: shouldUseSourceMap ? 'source-map' : false,
// In production, we only want to load the polyfills and the app code.
entry: {
// We ship a few polyfills by default:
// require.resolve('./polyfills'),
// Include an alternative client for WebpackDevServer. A client's job is to
// connect to WebpackDevServer by a socket and get notified about changes.
// When you save a file, the client will either apply hot updates (in case
// of CSS changes), or refresh the page (in case of JS changes). When you
// make a syntax error, this client will display a syntax error overlay.
// Note: instead of the default WebpackDevServer client, we use a custom one
// to bring better experience for Create React App users. You can replace
// the line below with these two lines if you prefer the stock client:
// require.resolve('webpack-dev-server/client') + '?/',
// require.resolve('webpack/hot/dev-server'),
// require.resolve('react-dev-utils/webpackHotDevClient'),
// Finally, this is your app's code:
// paths.appIndexJs,
// We include the app code last so that if there is a runtime error during
// initialization, it doesn't blow up the WebpackDevServer client, and
// changing JS code would still trigger a refresh.
index: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/index.js',
],
login: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/login.js',
],
register: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/register.js',
],
main: [
require.resolve('./polyfills'),
require.resolve('react-dev-utils/webpackHotDevClient'),
paths.appSrc + '/main.js',
]
},
output: {
// The build folder.
path: paths.appBuild,
// Generated JS file names (with nested folders).
// There will be one main bundle, and one file per asynchronous chunk.
// We don't currently advertise code splitting but Webpack supports it.
filename: 'static/js/[name].[chunkhash:8].js',
chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
// We inferred the "public path" (such as / or /my-project) from homepage.
publicPath: publicPath,
// Point sourcemap entries to original disk location (format as URL on Windows)
devtoolModuleFilenameTemplate: info =>
path
.relative(paths.appSrc, info.absoluteResourcePath)
.replace(/\\/g, '/'),
},
resolve: {
// This allows you to set a fallback for where Webpack should look for modules.
// We placed these paths second because we want `node_modules` to "win"
// if there are any conflicts. This matches Node resolution mechanism.
// https://github.com/facebookincubator/create-react-app/issues/253
modules: ['node_modules', paths.appNodeModules].concat(
// It is guaranteed to exist because we tweak it in `env.js`
process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
),
// These are the reasonable defaults supported by the Node ecosystem.
// We also include JSX as a common component filename extension to support
// some tools, although we do not recommend using it, see:
// https://github.com/facebookincubator/create-react-app/issues/290
// `web` extension prefixes have been added for better support
// for React Native Web.
extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
alias: {
// Support React Native Web
// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
'react-native': 'react-native-web',
'@': paths.appSrc
},
plugins: [
// Prevents users from importing files from outside of src/ (or node_modules/).
// This often causes confusion because we only process files within src/ with babel.
// To fix this, we prevent you from importing files out of src/ -- if you'd like to,
// please link the files into your node_modules/ and let module-resolution kick in.
// Make sure your source files are compiled, as they will not be processed in any way.
new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
],
},
module: {
strictExportPresence: true,
rules: [
// TODO: Disable require.ensure as it's not a standard language feature.
// We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
// { parser: { requireEnsure: false } },
// First, run the linter.
// It's important to do this before Babel processes the JS.
{
test: /\.(js|jsx|mjs)$/,
enforce: 'pre',
use: [
{
options: {
formatter: eslintFormatter,
eslintPath: require.resolve('eslint'),
},
loader: require.resolve('eslint-loader'),
},
],
include: paths.appSrc,
},
{
// "oneOf" will traverse all following loaders until one will
// match the requirements. When no loader matches it will fall
// back to the "file" loader at the end of the loader list.
oneOf: [
// "url" loader works just like "file" loader but it also embeds
// assets smaller than specified size as data URLs to avoid requests.
{
test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
loader: require.resolve('url-loader'),
options: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]',
},
},
// Process JS with Babel.
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
plugins: [
[
require.resolve('babel-plugin-named-asset-import'),
{
loaderMap: {
svg: {
ReactComponent: '@svgr/webpack?-prettier,-svgo![path]',
},
},
},
],
// 按需加载
["import", {
"libraryName": "antd",
"libraryDirectory": "es",
"style": true // `style: true` 会加载 less 文件
}],
],
compact: true,
},
},
// The notation here is somewhat confusing.
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader normally turns CSS into JS modules injecting <style>,
// but unlike in development configuration, we do something different.
// `ExtractTextPlugin` first applies the "postcss" and "css" loaders
// (second argument), then grabs the result CSS and puts it into a
// separate file in our build process. This way we actually ship
// a single CSS file in production instead of JS code injecting <style>
// tags. If you use code splitting, however, any async bundles will still
// use the "style" loader inside the async code so CSS from them won't be
// in the main CSS file.
{
test: /\.(css|less)$/,
loader: ExtractTextPlugin.extract(
Object.assign(
{
fallback: {
loader: require.resolve('style-loader'),
options: {
hmr: false,
},
},
use: [
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
minimize: true,
sourceMap: shouldUseSourceMap,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
// 编译 less 文件
{
loader: require.resolve('less-loader'),
options: {
// 解决报错: Inline JavaScript is not enabled. Is it set in your options?
javascriptEnabled: true,
modifyVars: {
'primary-color': '#ffa726',
'link-color': '#5e77ff'
}
},
}
],
},
extractTextPluginOptions
)
),
// Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
},
// "file" loader makes sure assets end up in the `build` folder.
// When you `import` an asset, you get its filename.
// This loader doesn't use a "test" so it will catch all modules
// that fall through the other loaders.
{
loader: require.resolve('file-loader'),
// Exclude `js` files to keep "css" loader working as it injects
// it's runtime that would otherwise processed through "file" loader.
// Also exclude `html` and `json` extensions so they get processed
// by webpacks internal loaders.
exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
options: {
name: 'static/media/[name].[hash:8].[ext]',
},
},
// ** STOP ** Are you adding a new loader?
// Make sure to add the new loader(s) before the "file" loader.
],
},
],
},
plugins: [
// Makes some environment variables available in index.html.
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
// In production, it will be an empty string unless you specify "homepage"
// in `package.json`, in which case it will be the pathname of that URL.
new InterpolateHtmlPlugin(env.raw),
new BundleAnalyzerPlugin(),
// Generates an `index.html` file with the <script> injected.
new HtmlWebpackPlugin({
inject: true,
template: paths.appHtml,
filename: 'index.html',
chunks: ['index'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.loginHtml,
filename: 'login.html',
chunks: ['login'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.registerHtml,
filename: 'register.html',
chunks: ['register'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
new HtmlWebpackPlugin({
inject: true,
template: paths.mainHtml,
filename: 'main.html',
chunks: ['main'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
}),
// new webpack.DllReferencePlugin({
// context: '.',
// manifest:require('./build/polyfill.manifest.json'),
// }),
// Makes some environment variables available to the JS code, for example:
// if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
// It is absolutely essential that NODE_ENV was set to production here.
// Otherwise React will be compiled in the very slow development mode.
new webpack.DefinePlugin(env.stringified),
// Minify the code.
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false,
// Disabled because of an issue with Uglify breaking seemingly valid code:
// https://github.com/facebookincubator/create-react-app/issues/2376
// Pending further investigation:
// https://github.com/mishoo/UglifyJS2/issues/2011
comparisons: false,
},
mangle: {
safari10: true,
},
output: {
comments: false,
// Turned on because emoji and regex is not minified properly using default
// https://github.com/facebookincubator/create-react-app/issues/2488
ascii_only: true,
},
sourceMap: shouldUseSourceMap,
}),
// Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
new ExtractTextPlugin({
filename: cssFilename,
}),
// Generate a manifest file which contains a mapping of all asset filenames
// to their corresponding output file so that tools can pick it up without
// having to parse `index.html`.
new ManifestPlugin({
fileName: 'asset-manifest.json',
}),
// Generate a service worker script that will precache, and keep up to date,
// the HTML & assets that are part of the Webpack build.
new SWPrecacheWebpackPlugin({
// By default, a cache-busting query parameter is appended to requests
// used to populate the caches, to ensure the responses are fresh.
// If a URL is already hashed by Webpack, then there is no concern
// about it being stale, and the cache-busting can be skipped.
dontCacheBustUrlsMatching: /\.\w{8}\./,
filename: 'service-worker.js',
logger(message) {
if (message.indexOf('Total precache size is') === 0) {
// This message occurs for every build and is a bit too noisy.
return;
}
if (message.indexOf('Skipping static resource') === 0) {
// This message obscures real errors so we ignore it.
// https://github.com/facebookincubator/create-react-app/issues/2612
return;
}
console.log(message);
},
minify: true,
// For unknown URLs, fallback to the index page
navigateFallback: publicUrl + '/index.html',
// Ignores URLs starting from /__ (useful for Firebase):
// https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
navigateFallbackWhitelist: [/^(?!\/__).*/],
// Don't precache sourcemaps (they're large) and build asset manifest:
staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/],
}),
// Moment.js is an extremely popular library that bundles large locale files
// by default due to how Webpack interprets its code. This is a practical
// solution that requires the user to opt into importing specific locales.
// https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
// You can remove this if you don't use Moment.js:
new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
],
// Some libraries import Node modules but don't use them in the browser.
// Tell Webpack to provide empty mocks for them so importing them works.
node: {
dgram: 'empty',
fs: 'empty',
net: 'empty',
tls: 'empty',
child_process: 'empty',
},
};复制代码paths.js
'use strict';
const path = require('path');
const fs = require('fs');
const url = require('url');
// Make sure any symlinks in the project folder are resolved:
// https://github.com/facebookincubator/create-react-app/issues/637
const appDirectory = fs.realpathSync(process.cwd());
const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
const envPublicUrl = process.env.PUBLIC_URL;
function ensureSlash(path, needsSlash) {
const hasSlash = path.endsWith('/');
if (hasSlash && !needsSlash) {
return path.substr(path, path.length - 1);
} else if (!hasSlash && needsSlash) {
return `${path}/`;
} else {
return path;
}
}
const getPublicUrl = appPackageJson =>
envPublicUrl || require(appPackageJson).homepage;
// We use `PUBLIC_URL` environment variable or "homepage" field to infer
// "public path" at which the app is served.
// Webpack needs to know it to put the right <script> hrefs into HTML even in
// single-page apps that may serve index.html for nested URLs like /todos/42.
// We can't use a relative path in HTML because we don't want to load something
// like /todos/42/static/js/bundle.7289d.js. We have to know the root.
function getServedPath(appPackageJson) {
const publicUrl = getPublicUrl(appPackageJson);
const servedUrl =
envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
return ensureSlash(servedUrl, true);
}
// config after eject: we're in ./config/
module.exports = {
dotenv: resolveApp('.env'),
appBuild: resolveApp('build'),
appPublic: resolveApp('public'),
appHtml: resolveApp('public/index.html'),
loginHtml: resolveApp('public/login.html'),
registerHtml: resolveApp('public/register.html'),
mainHtml: resolveApp('public/main.html'),
appIndexJs: resolveApp('src/index.js'),
appPackageJson: resolveApp('package.json'),
appSrc: resolveApp('src'),
yarnLockFile: resolveApp('yarn.lock'),
testsSetup: resolveApp('src/setupTests.js'),
appNodeModules: resolveApp('node_modules'),
publicUrl: getPublicUrl(resolveApp('package.json')),
servedPath: getServedPath(resolveApp('package.json')),
};复制代码
