如何隐藏Webpack/Babel配置文件？React+Redux样板套件实现方法

Great question! The magic behind create-react-app's hidden configs lies in abstracting all the complex setup into an internal dependency that your starter kit relies on. Users only interact with simple npm scripts, and the config files stay tucked away until they run eject. Here's how you can replicate this for your own project:

Core Idea #

Instead of placing webpack.config.js and .babelrc directly in your starter kit's root, you'll bundle these configs into a separate npm package (let's call it my-starter-scripts). Your main starter kit will depend on this package, and all build/start commands will delegate to it. The eject command will then copy these hidden configs into the user's project root for full customization.

Step-by-Step Implementation #

1. Create a Separate "Scripts" Package #

First, set up a standalone npm package to house your config files and CLI commands:

• Make a new directory (e.g., my-starter-scripts) and run npm init to initialize it.
• Add your webpack.config.js, babel.config.js (or .babelrc), and any other build-related configs to a config/ folder inside this package.
• Install dependencies like webpack, webpack-cli, babel-loader, @babel/core, etc., as peer dependencies or regular dependencies here.

Example structure for my-starter-scripts:

my-starter-scripts/
├── bin/
│   └── my-starter-scripts.js  # Your CLI entry point
├── config/
│   ├── webpack.config.js
│   └── babel.config.js
└── package.json

2. Build a CLI for Your Scripts Package #

In the bin/my-starter-scripts.js file, create a simple command-line interface to handle start, build, and eject commands. You can use tools like commander or yargs for this:

#!/usr/bin/env node
const { program } = require('commander');
const fs = require('fs-extra');
const path = require('path');
const webpack = require('webpack');
const WebpackDevServer = require('webpack-dev-server');
const webpackConfig = require('../config/webpack.config.js');

program
  .command('start')
  .description('Start the development server')
  .action(() => {
    const compiler = webpack(webpackConfig);
    const server = new WebpackDevServer({ hot: true }, compiler);
    server.start().catch(err => console.error(err));
  });

program
  .command('build')
  .description('Build the production bundle')
  .action(() => {
    webpack(webpackConfig, (err, stats) => {
      if (err || stats.hasErrors()) {
        console.error(err || stats.toString('errors-only'));
        process.exit(1);
      }
      console.log('Build completed successfully!');
    });
  });

program
  .command('eject')
  .description('Eject to expose config files')
  .action(async () => {
    const userProjectRoot = process.cwd();
    const configDir = path.join(__dirname, '../config');

    // Copy config files to user's project root
    await fs.copy(path.join(configDir, 'webpack.config.js'), path.join(userProjectRoot, 'webpack.config.js'));
    await fs.copy(path.join(configDir, 'babel.config.js'), path.join(userProjectRoot, 'babel.config.js'));

    // Update user's package.json to replace script commands
    const userPackageJson = await fs.readJson(path.join(userProjectRoot, 'package.json'));
    userPackageJson.scripts = {
      start: 'webpack serve --config webpack.config.js',
      build: 'webpack --config webpack.config.js'
    };
    await fs.writeJson(path.join(userProjectRoot, 'package.json'), userPackageJson, { spaces: 2 });

    console.log('Ejected successfully! Config files are now in your project root.');
  });

program.parse(process.argv);

Don't forget to add the bin field to my-starter-scripts/package.json to register your CLI:

{
  "name": "my-starter-scripts",
  "version": "1.0.0",
  "bin": {
    "my-starter-scripts": "./bin/my-starter-scripts.js"
  },
  // ... other dependencies and fields
}

3. Set Up Your Main Starter Kit #

In your React + Redux starter kit's root package.json, add my-starter-scripts as a dependency (you can publish it to npm or use npm link for local development):

{
  "name": "my-react-redux-starter",
  "version": "1.0.0",
  "scripts": {
    "start": "my-starter-scripts start",
    "build": "my-starter-scripts build",
    "eject": "my-starter-scripts eject"
  },
  "dependencies": {
    "my-starter-scripts": "^1.0.0",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "redux": "^4.2.1"
  }
}

Now, when users initialize your starter kit, they won't see the webpack/babel configs in their project root. They'll use npm start or npm run build to work with your pre-configured setup, and only run npm run eject if they need full control over the configs.

4. Extra Tips #

• Environment Variables: Add support for .env files in your scripts package (using dotenv) so users can customize settings without ejecting.
• Peer Dependencies: Declare React, Redux, etc., as peer dependencies in my-starter-scripts to avoid duplicate installs.
• Error Handling: Add robust error checking in your CLI (e.g., confirm before ejecting, check if files already exist).

内容的提问来源于stack exchange，提问作者Rafael Rocha