text: /* eslint-disable */
  import legacyPlugin from '@vitejs/plugin-legacy'
  // import usePluginImport from 'vite-plugin-importer';
  import * as path from 'path'
  import * as dotenv from 'dotenv'
  import * as fs from 'fs'
  import vuePlugin from '@vitejs/plugin-vue'
  // @see https://cn.vitejs.dev/config/
  export default ({ command, mode }) => {
    let NODE_ENV = process.env.NODE_ENV || 'development'
    let envFiles = [`.env.${NODE_ENV}`]
    for (const file of envFiles) {
      const envConfig = dotenv.parse(fs.readFileSync(file))
      for (const k in envConfig) {
        process.env[k] = envConfig[k]
      }
    }
  
    let rollupOptions = {}
  
    let optimizeDeps = {}
  
    let alias = {
      '@': path.resolve(__dirname, './src'),
      vue$: 'vue/dist/vue.runtime.esm-bundler.js',
    }
  
    let esbuild = {}
  
    return {
      base: './', // index.html文件所在位置
      root: './', // js导入的资源路径，src
      resolve: {
        alias,
      },
      define: {
        'process.env': {},
      },
      server: {
        open: true,
        port: process.env.VITE_CLI_PORT,
        proxy: {
          // 把key的路径代理到target位置
          // detail: https://cli.vuejs.org/config/#devserver-proxy
          [process.env.VITE_BASE_API]: {
            // 需要代理的路径   例如 '/api'
            target: `${process.env.VITE_BASE_PATH}:${process.env.VITE_SERVER_PORT}/`, // 代理到 目标路径
            changeOrigin: true,
            rewrite: (path) => path.replace(new RegExp('^' + process.env.VITE_BASE_API), ''),
          },
        },
      },
      build: {
        target: 'es2015',
        minify: 'terser', // 是否进行压缩,boolean | 'terser' | 'esbuild',默认使用terser
        manifest: false, // 是否产出maifest.json
        sourcemap: false, // 是否产出soucemap.json
        outDir: 'dist', // 产出目录
        rollupOptions,
      },
      esbuild,
      optimizeDeps,
      plugins: [
        legacyPlugin({
          targets: ['Android > 39', 'Chrome >= 60', 'Safari >= 10.1', 'iOS >= 10.3', 'Firefox >= 54', 'Edge >= 15'],
        }),
        vuePlugin(),
      ],
      css: {
        preprocessorOptions: {
          less: {
            // 支持内联 JavaScript
            javascriptEnabled: true,
          },
        },
      },
    }
  }
  