vue.config.js

'use strict'
const path = require('path')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = 'plugin photo swiper' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 9527 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: true,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true,
    },
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name,
    resolve: {
      // modules: [path.resolve('node_modules')], // 对于需要引入的模块去node_modules下找
      // extensions: ['.js', '.css', '.json', '.vue', '.ts'], // 配置扩展名，使用场景如下
      alias: {
        '@': resolve('src'),
      },
    },
  },
  chainWebpack(config) {
    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()
  },
}