如何在不弹出的情况下将CopyWebpackPlugin添加到create-react-app？

Question

我正在构建一个react应用程序,我想将所有图像文件从源目标复制到构建目标.我正在关注一些教程,到目前为止设法使用react-app-wired和CopyWebpackPlugin

我没有错误,也没有复制文件.

这是我的 config-overrides.js

const CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = function override(config, env) {
   if (!config.plugins) {
    config.plugins = [];
  }
  config.plugins.push(
    new CopyWebpackPlugin(
    [
      {
        from: 'src/images',
        to: 'public/images'
      }
    ])
  );
  return config;
};

这是我的 package.json

{
  "name": "public",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "axios": "^0.18.0",
    "copy-webpack-plugin": "^4.5.2",
    "css-loader": "^1.0.0",
    "prop-types": "^15.6.2",
    "react": "^16.4.2",
    "react-app-rewired": "^1.5.2",
    "react-axios": "^2.0.0",
    "react-dom": "^16.4.2",
    "react-router-dom": "^4.3.1",
    "react-scripts": "1.1.4",
    "react-slick": "^0.23.1",
    "slick-carousel": "^1.8.1",
    "typeface-montserrat": "0.0.54",
    "webfontloader": "^1.6.28"
  },
  "scripts": {
    "build-css": "node-sass-chokidar src/ -o src/",
    "watch-css": "npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive",
    "start-js": "react-app-rewired start",
    "start": "npm-run-all -p watch-css start-js",
    "build-js": "react-app-rewired build",
    "build": "npm-run-all build-css build-js",
    "test": "react-app-rewired test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "devDependencies": {
    "npm-run-all": "^4.1.3",
    "style-loader": "^0.22.1"
  }
}

我的文件夹结构是

src/images src/images/file.jpg src/images/slider/1.png src/images/slider/2.png public/images (empty) so far

Answer 1

绝对不建议修改node_modules/react-scripts/config/webpack.config.dev.js文件,因为在更新此特定包时这会中断.也很可能你会node_modules在你的版本控制系统中被忽略,这意味着这个配置不会在开发人员之间共享或备份.

虽然我没有亲自尝试过你可以使用这样的东西:https://github.com/timarney/react-app-rewired来覆盖Webpack配置.

您可以在这里查看教程:https://medium.com/@timarney/but-i-dont-wanna-eject-3e3da5826e39

Answer 2

假设您只想在构建时将文件从-/src/<somewhere>移到。./<somewhereElse>

您可以build在package.json中的脚本中添加一个额外的步骤。以下步骤完全由您控制，并且不会与任何create-react-app脚本或配置混淆。

例如，我使用了ncp package，但是如果您想进行更精细的控制，还可以使用ncp甚至使用原始节点fs api创建自己的“步骤”。

这是一种复制我所做的方法：

设定

npx create-react-app img-upload
cd img-upload/
yarn add --dev ncp

测试数据 创建src / images /文件夹结构并放入文件

ls -R src/images/
src/images/:
badge.jpg  folder1

src/images/folder1:
applause.gif  blank.png

Package.json

我只编辑了一部分： "build": "ncp './src/images' './public/images' && react-scripts build",

{
  "name": "img-upload",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.4.2",
    "react-dom": "^16.4.2",
    "react-scripts": "1.1.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "ncp './src/images' './public/images' &&  react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "devDependencies": {
    "ncp": "^2.0.0"
  }
}

测试： 运行构建之前：

ls public
favicon.ico  index.html  manifest.json

运行构建后： yarn build

ls public
favicon.ico  images  index.html  manifest.json

ls -R public/images
public/images/:
badge.jpg  folder1

public/images/folder1:
applause.gif  blank.png

ls build
asset-manifest.json  favicon.ico  images  index.html  manifest.json  service-worker.js  static

ls -R build/images
build/images/:
badge.jpg  folder1

build/images/folder1:
applause.gif  blank.png

建议 我假设您最终在build目录中需要这些文件。如果是这样，您只需切换build脚本即可。

"build": "react-scripts build && ncp './src/images' './build/images'",

这样，您就不会污染您的公用文件夹，您可能希望将其保留在源代码管理中。

Answer 3

我的工作原理是这样的：

const { override, addWebpackPlugin } = require('customize-cra');
module.exports = {
webpack: override(
    addWebpackPlugin(
        new CopyWebpackPlugin({
            patterns: [
                { from: 'src/config', to: 'config' }
            ],
        })
    )
)

这样，我将获取 config 文件夹的内容，并在构建中创建一个相同的文件夹（也称为 config）。