vue-cli3.0打包時如何忽略某個第三方依賴包

娜一抹驚鴻發表於2019-03-02
Vue

前幾天接到了用vue重構某個業務模組的需求，常規開發不做討論，但是在打包時需要排除業務中使用的某個第三方依賴包。 程式碼如下:

//main.js 
import Vue from 'vue';
import Cesium from 'cesium/Cesium'; //必須全域性引入，某個元件中引入忽略無效
import Widgets from 'cesium/Widgets/widgets.css'

Vue.prototype.Cesium = Cesium;
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//vue.config.js(如果沒有就在根目錄下新建)

const cesiumSource = "node_modules/cesium/Source";
const cesiumWorkers = '../Build/Cesium/Workers';
module.exports = {
    chainWebpack: config => {
        //定義別名
        .resolve.alias.set('cesium', path.resolve(__dirname, cesiumSource)).end().end()
    },
    configureWebpack: config => {
    let settings = {};
    if (process.env.NODE_ENV === 'production') { // 使用環境變數，區分生產和開發模式
      settings = {
        plugins: [
          new webpack.DefinePlugin({
            'CESIUM_BASE_URL': JSON.stringify('static')
          }),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, cesiumWorkers),
            to: 'static/Workers'
          }]),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, 'Assets'),
            to: 'static/Assets'
          }]),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, 'Widgets'),
            to: 'static/Widgets'
          }])
        ],
        externals: {
            /**
            *key: main.js中全域性引入的路徑
            *value: 全域性暴露出來的物件名
            */
          "cesium/Cesium": "Cesium" //忽略js
          "cesium/Widgets/widgets.css": "Widgets" //忽略css
        }
      }

    } else {
      settings = {
        plugins: [
          new webpack.DefinePlugin({
            'CESIUM_BASE_URL': JSON.stringify('')
          }),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, cesiumWorkers),
            to: 'Workers'
          }]),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, 'Assets'),
            to: 'Assets'
          }]),
          new CopyWebpackPlugin([{
            from: path.join(cesiumSource, 'Widgets'),
            to: 'Widgets'
          }]),
        ]
      }
    }
    return settings
}
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that's all

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