使用rollup打包react组件并发布到npm官网

最近在学习react，然后想通过做个具体的例子来学习react，于是看到网上有个日本网友做了一个cd播放器，不过他是用jquery实现的，于是我打算用react来重写这个组件并发布到npm上面。然后我就用create-react-app这个脚手架来打包这个组件，代码都写好了，不过问题是我怎么发布到npm上面，于是我就直接在index.js里面写了一个

export default ReactCdPlayer

但是这个真的好使的吗，当我成功发布到Npm上之后然后通过

yarn add react-cd-player

来导入刚刚发布的组件，在项目中这样引入：

import cdplayer from 'react-cd-player'

编译一下，报错！

很好，这个提示很明显就是你发布的这个包在项目中成功引入了，但是它不是标准的es5代码，也就是说react-cd-player导出的是es6的代码，所以一定要用babel来转译一下，一想到这里我们肯定会想到使用webpack来打包，可是 ，我说了可是，当我把这个issue提到create-react-app上面的时候，代码贡献者推荐我使用rollup，于是一场围绕rollup的填坑之旅就此出发。

于是在网上找关于rollup打包react组件的文章，居然没有！！！看来得自己搞定了，于是我就到处找，终于经过几番周折我在react-redux上面 找到了使用rollup打包的源码了，不过他们是用来打包redux的，于是我就按照他们的代码复制到我的rollup.config.js里面，打包的时候也不是很顺利出了几个错，我现在总结一下，也分享给网友。

问题1、

$ rollup -c
?   Error: 'default' is not exported by node_modules/material-ui-icons/FastRewind.js
https://github.com/rollup/rollup/wiki/Troubleshooting#name-is-not-exported-by-module
src/containers/ReactCdPlayer.js (6:7)
4: import PropTypes from 'prop-types';
5: import FastForward from 'material-ui-icons/FastForward';
6: import FastRewind from 'material-ui-icons/FastRewind';
          ^
7: import { LinearProgress } from 'material-ui/Progress';

error Command failed with exit code 1.

其实这个问题是rollup-plugin-commonjs这个插件造成的，好像事关commonjs umd 等等，解决办法就是下面的这段代码：

commonjs({
  namedExports: {
    // left-hand side can be an absolute path, a path
    // relative to the current directory, or the name
    // of a module in node_modules
    'node_modules/my-lib/index.js': [ 'named' ]
  }
})

问题2、

☁  react-cd-player [master] ⚡ yarn build:umd:min
yarn build:umd:min v0.24.5
$ cross-env BABEL_ENV=rollup NODE_ENV=production rollup -c -o dist/ReactCdPlayer.min.js
⚠️   'default' is not exported by 'node_modules/core-js/library/modules/es6.object.to-string.js'
https://github.com/rollup/rollup/wiki/Troubleshooting#name-is-not-exported-by-module
commonjs-proxy:/Users/zhangwei/Work/Github/react-cd-player/node_modules/core-js/library/modules/es6.object.to-string.js (1:205)
1: import * as es6_object_toString from "/Users/zhangwei/Work/Github/react-cd-player/node_modules/core-js/library/modules/es6.object.to-string.js"; export default ( es6_object_toString && es6_object_toString['default'] ) || es6_object_toString;
                                                                                                                                                                                                                ^

✨  Done in 10.56s.

这个问题我已经提issue了，但是没人回答我，如果网友有知道的可以给我留言。虽然没有解决但是也不影响我们打包，说穿了只是一个警告。于是成功打包，我把rollup.config.js和package.json还有.babelrc相关代码贴出来，供网友参考，后续如果我解决了上面的问题我也会更新。

.babelrc

{
    "presets": [
        [  
            "es2015",  
            {  
              "modules": false  
            }  
          ],
        "react",
        "stage-2"
      ],
    "env": {
        "test": {
          "plugins": ["istanbul"]
        },
        "commonjs": {
          "plugins": [
            ["transform-es2015-modules-commonjs", { "loose": true }]
          ]
        },
        "es": {
          "plugins": [
            "./use-lodash-es"
          ]
        },
        "rollup": {
          "plugins": [
            "./use-lodash-es",
            "external-helpers"
          ]
        }
      },
      "plugins": [
        "transform-class-properties",
        "transform-decorators-legacy",
        ["transform-es2015-template-literals", { "loose": true }],
        "transform-es2015-literals",
        "transform-es2015-function-name",
        "transform-es2015-arrow-functions",
        "transform-es2015-block-scoped-functions",
        ["transform-es2015-classes", { "loose": true }],
        "transform-es2015-object-super",
        "transform-es2015-shorthand-properties",
        ["transform-es2015-computed-properties", { "loose": true }],
        ["transform-es2015-for-of", { "loose": true }],
        "transform-es2015-sticky-regex",
        "transform-es2015-unicode-regex",
        "check-es2015-constants",
        ["transform-es2015-spread", { "loose": true }],
        "transform-es2015-parameters",
        ["transform-es2015-destructuring", { "loose": true }],
        "transform-es2015-block-scoping",
        "transform-object-rest-spread",
        "transform-react-jsx",
        "syntax-jsx"
      ]
  }

package.json

{
  "name": "react-cd-player",
  "homepage": "http://zhangwei900808.github.io/react-cd-player",
  "version": "0.14.1",
  "main": "lib/containers/ReactCdPlayer.js",
  "files": [
    "dist",
    "lib"
  ],
  "dependencies": {
    "classnames": "^2.2.5",
    "lodash": "^4.17.4",
    "lodash-es": "^4.17.4",
    "loose-envify": "^1.3.1",
    "material-ui": "next",
    "material-ui-icons": "^1.0.0-alpha.19",
    "node-sass-chokidar": "^0.0.3",
    "npm-run-all": "^4.0.2",
    "react": "^15.6.1",
    "react-dom": "^15.6.1",
    "react-redux": "^5.0.6"
  },
  "devDependencies": {
    "babel-cli": "^6.24.1",
    "babel-core": "^6.25.0",
    "babel-plugin-external-helpers": "^6.22.0",
    "babel-plugin-syntax-jsx": "^6.18.0",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "babel-plugin-transform-decorators-legacy": "^1.3.4",
    "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
    "babel-plugin-transform-es2015-block-scoped-functions": "^6.22.0",
    "babel-plugin-transform-es2015-block-scoping": "^6.24.1",
    "babel-plugin-transform-es2015-classes": "^6.24.1",
    "babel-plugin-transform-es2015-computed-properties": "^6.24.1",
    "babel-plugin-transform-es2015-destructuring": "^6.23.0",
    "babel-plugin-transform-es2015-for-of": "^6.23.0",
    "babel-plugin-transform-es2015-function-name": "^6.24.1",
    "babel-plugin-transform-es2015-literals": "^6.22.0",
    "babel-plugin-transform-es2015-modules-commonjs": "^6.24.1",
    "babel-plugin-transform-es2015-object-super": "^6.24.1",
    "babel-plugin-transform-es2015-parameters": "^6.24.1",
    "babel-plugin-transform-es2015-shorthand-properties": "^6.24.1",
    "babel-plugin-transform-es2015-spread": "^6.22.0",
    "babel-plugin-transform-es2015-sticky-regex": "^6.24.1",
    "babel-plugin-transform-es2015-template-literals": "^6.22.0",
    "babel-plugin-transform-es2015-unicode-regex": "^6.24.1",
    "babel-plugin-transform-object-rest-spread": "^6.23.0",
    "babel-plugin-transform-react-display-name": "^6.25.0",
    "babel-plugin-transform-react-jsx": "^6.24.1",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-es2015-rollup": "^3.0.0",
    "babel-preset-latest": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-stage-1": "^6.24.1",
    "babel-preset-stage-2": "^6.24.1",
    "cross-env": "^5.0.5",
    "gh-pages": "^1.0.0",
    "postcss-cssnext": "^3.0.2",
    "postcss-nested": "^2.1.0",
    "postcss-simple-vars": "^4.0.0",
    "react-scripts": "1.0.11",
    "rollup": "^0.45.2",
    "rollup-plugin-babel": "^3.0.1",
    "rollup-plugin-commonjs": "^8.1.0",
    "rollup-plugin-image": "^1.0.2",
    "rollup-plugin-node-globals": "^1.1.0",
    "rollup-plugin-node-resolve": "^3.0.0",
    "rollup-plugin-postcss": "^0.5.4",
    "rollup-plugin-replace": "^1.1.1",
    "rollup-plugin-uglify": "^2.0.1"
  },
  "scripts": {
    "build-css": "node-sass-chokidar src/assets/css/ -o src/assets/css/",
    "watch-css": "npm run build-css && node-sass-chokidar src/assets/css/ -o src/assets/css/ --watch --recursive",
    "start-js": "react-scripts start",
    "start": "npm-run-all -p watch-css start-js",
    "build": "npm run build-css && react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject",
    "predeploy": "npm run build",
    "deploy": "gh-pages -d build",
    "rollup-build": "rollup -c",
    "rollup-production-build": "NODE_ENV=production rollup -c",
    "build:css": "node-sass-chokidar src/assets/css/ -o lib/assets/css/",
    "build:commonjs": "cross-env BABEL_ENV=commonjs babel src --out-dir lib",
    "build:es": "cross-env BABEL_ENV=es babel src --out-dir es",
    "build:umd": "cross-env BABEL_ENV=rollup NODE_ENV=development rollup -c -o dist/ReactCdPlayer.js",
    "build:umd:min": "cross-env BABEL_ENV=rollup NODE_ENV=production rollup -c -o dist/ReactCdPlayer.min.js",
    "build:rollup": "npm run build:css && npm run build:commonjs && npm run build:es && npm run build:umd && npm run build:umd:min"
  }
}

rollup.config.js

// Rollup plugins
import babel from 'rollup-plugin-babel';
import resolve from 'rollup-plugin-node-resolve';
import commonjs from 'rollup-plugin-commonjs';
import replace from 'rollup-plugin-replace';
import uglify from 'rollup-plugin-uglify';
import postcss from 'rollup-plugin-postcss';
import image from 'rollup-plugin-image';

// PostCSS plugins
import simplevars from 'postcss-simple-vars';
import nested from 'postcss-nested';
import cssnext from 'postcss-cssnext';
import cssnano from 'cssnano';

export default {
  entry: 'src/containers/ReactCdPlayer.js',
  dest: 'lib/js/main.min.js',
  format: 'umd',
  moduleName: 'ReactCdPlayer',
  plugins: [
    image(),
    postcss({
      sourceMap: true, // true, "inline" or false
      extract : './lib/style/style.css',
      plugins: [
        simplevars(),
        nested(),
        cssnext({ warnForDuplicates: false, }),
        cssnano(),
      ],
      extensions: [ '.css' ],
    }),
    resolve({
      jsnext: true,
      main: true,
      browser: true,
    }),
    commonjs({
      namedExports: {'node_modules/material-ui/Progress/index.js': [ 'LinearProgress' ]}
    }),
    babel({
      exclude: '**/node_modules/**',
    }),
    replace({
      exclude: 'node_modules/**',
      ENV: JSON.stringify(process.env.NODE_ENV || 'development'),
    }),
    (process.env.NODE_ENV === 'production' && uglify()),
  ],
};

其它问题，如：rollup如何打包image和css

我的源码