reactjs - 无法使用craco在create-react-app中导入其他项目的组件

Question

我在将组件从一个 React 项目导入另一个项目时遇到问题。这些问题似乎非常基本，但我真的很难弄清楚问题出在哪里以及实现我的目标的确切 craco 配置是什么。
导出项目
我正在导出 App ，这是一个功能性的 React 组件。
源代码/索引.js

import App from "./App";
export default App;

我用craco主要是因为Tailwindcss和antd，这是配置文件:
craco.config.js

const { BundleAnalyzerPlugin } = require("webpack-bundle-analyzer");
const WebpackBar = require("webpackbar");
const CracoAntDesignPlugin = require("craco-antd");

const path = require("path");

module.exports = {
  style: {
    postcss: {
      plugins: [require("tailwindcss"), require("autoprefixer")],
    },
  },
  webpack: {
    plugins: [
      new WebpackBar({ profile: true }),
      ...(process.env.NODE_ENV === "development"
        ? [new BundleAnalyzerPlugin({ openAnalyzer: false })]
        : []),
    ],
    configure: (webpackConfig, { env, paths }) => {
      paths.appBuild = webpackConfig.output.path = path.resolve("dist");

      webpackConfig.output = {
        ...webpackConfig.output,
        filename: "index.bundle.js",
        path: path.resolve(__dirname, "dist"),
        library: "library",
        libraryTarget: "umd",
      };

      webpackConfig.entry = path.join(__dirname, "./src/index.js");

      return webpackConfig;
    },
  },
  plugins: [
    {
      plugin: CracoAntDesignPlugin,
      options: {
        customizeThemeLessPath: path.join(
          __dirname,
          "./src/styles/variables.less"
        ),
        lessLoaderOptions: {
          lessOptions: {
            javascriptEnabled: true,
          },
        },
      },
    },
  ],
};

我正在使用 npm 发布我的包并将其导入到另一个项目中。这是 package.json 启动配置(出于隐私考虑删除了信息):
包.json

{
  "name": [company-repo-name],
  "version": "1.1.1-alpha16",
  "homepage": ".",
  "repository": [company-repo],
  "main": "dist/index.bundle.js",
  "publishConfig": {
    "registry": [company-registry]
  },
...

npm run build按预期工作并生成 index.bundle.js在 dist 文件夹内。我不确定问题是否出在这里，但该文件充满了缩小的功能并且似乎没有导出任何内容。
消费项目
通过 npm 安装导出项目工作正常，并尝试导入 App组件没有给我任何结果:

import App from [company-repo-name];给我 {} (空对象)

import { App } from [company-repo-name];给我 undefined

我目前不知道问题出在哪里，我期待着尝试的建议。

Answer 1

因此，经过几天摆弄 webpack 配置后，我遇到了 this救命文章。我没有尝试的是文章说的第一件事:“输出单个包而不是块”。使用技巧的行包括更改优化 webpack 配置:

config.optimization.splitChunks = {
    cacheGroups: {
      default: false,
    },
  };
config.optimization.runtimeChunk = false;

按照文章中介绍的所有步骤进行操作后，我最终得到了 craco webpack 配置，如下所示:

configure: (config, { paths }) => {
  paths.appBuild = config.output.path = path.resolve("build");
  if (process.env.REACT_APP_INJECTABLE === "true") {
    config = disableChunks(config);
    config = makeInjectable(config, { paths });
  }
  return config;
}

disableChunks()是从将构建合并到单个包中的辅助文件导入的。我还禁用了最小化，因此我的消费者项目中可能会有更多描述性错误。这是 disable-chunks.js :

module.exports = function disableChunks(config) {
  // Consolidate bundle instead of chunk
  // https://webpack.js.org/plugins/split-chunks-plugin
  config.optimization.splitChunks = {
    cacheGroups: {
      default: false,
    },
  };

  // Move runtime into bundle instead of separate file
  // https://webpack.js.org/configuration/optimization
  config.optimization.runtimeChunk = false;

  config.optimization.minimize = false;

  // JS
  // https://webpack.js.org/configuration/output
  config.output.filename = "main.js";

  // CSS
  // https://webpack.js.org/plugins/mini-css-extract-plugin
  const cssPluginIdx = config.plugins
    .map((p) => p.constructor.name)
    .indexOf("MiniCssExtractPlugin");
  if (cssPluginIdx !== -1) {
    config.plugins[cssPluginIdx].options.filename = "main.css";
  }

  return config;
};

最后一个配置文件是 make-injectable.js设置输出配置。我之前配置过这个，但出于组织原因决定将其移动到另一个文件。

module.exports = function makeInjectable(config, { paths }) {
  // Output a UMD module and define its name via the library key.
  // This key will be what is referenced when the hub looks for
  // the correct module to dynamically load after the bundle is
  // injected into the DOM
  // https://webpack.js.org/configuration/output
  config.output.library = basename(process.env.npm_package_name);
  config.output.libraryTarget = "umd";

  // Set separate entry point when building the injectable lib
  // https://webpack.js.org/concepts/entry-points
  config.entry = `${paths.appSrc}/index.injectable.js`;

  // Exclude shared dependencies to reduce bundle size
  // https://webpack.js.org/configuration/externals
  config.externals = {
    react: "react",
    "react-router-dom": "react-router-dom",
  };

  return config;
};

同样，对我有用的代码基本上是从文章 Implementing a Micro-Frontend Architecture With React 中复制的。来自 J.C. Yamokoski (如果你遇到这个问题，谢谢我的人)。