vue.config.js

// eslint-disable-next-line @typescript-eslint/no-var-requires
const path = require('path')

const devServerPort = 9528 // TODO: get this variable from setting.ts
const name = 'ArkID Frontend' // TODO: get this variable from setting.ts

module.exports = {
  publicPath: './',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: devServerPort,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    progress: false,
    proxy: {
      '/api': {
        target: 'http://localhost:8000',
        changeOrigin: true,
        pathRewrite: {
          '^/api': '/api'
        }
      }
    },
    disableHostCheck: true
  },
  pluginOptions: {
    'style-resources-loader': {
      preProcessor: 'scss',
      patterns: [
        path.resolve(__dirname, 'src/styles/_variables.scss'),
        path.resolve(__dirname, 'src/styles/_mixins.scss')
      ]
    }
  },
  chainWebpack(config) {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    config.set('name', name)

    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                libs: {
                  name: 'chunk-libs',
                  test: /[\\/]node_modules[\\/]/,
                  priority: 10,
                  chunks: 'initial' // only package third parties that are initially dependent
                },
                elementUI: {
                  name: 'chunk-elementUI', // split elementUI into a single package
                  priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                  test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
                },
                commons: {
                  name: 'chunk-commons',
                  test: path.resolve(__dirname, 'src/components'),
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true
                }
              }
            })
          // https://webpack.js.org/configuration/optimization/#optimizationruntimechunk
          config.optimization.runtimeChunk('single')
        }
      )
  }
}