Vue3 vite to configure css’ sourceMap and file reference configuration alias

export default defineConfig({
  plugins: [
    vue(),
    checker({
      typescript: true,
      vueTsc: true,
    }),
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', )),
    },
  },
  css: {
    devSourcemap: true,
  },
});

export default ({ mode, command }) => {
  (command);
  // (mode);
  const boo = mode === 'dev';
  const alias = {
    '@': (__dirname, './src'),
    pages: (__dirname, './src/pages'),
    assets: (__dirname, './src/assets'),
    images: (__dirname, './src/assets/image'),
    store: (__dirname, './src/store'),
    plugins: (__dirname, './src/plugins'),
    components: (__dirname, './src/components')
  };
  // if (boo) {
  alias['vue-i18n'] = 'vue-i18n/dist/';
  // }
  return defineConfig({
    server: {
      host: '0.0.0.0',
      port: 85
    },
    css: {
      devSourcemap: boo
    },
    resolve: {
      alias
    },
    /*  proxy: {
      '/api': {
        target: 'http://localhost:3333/',
        changeOrigin: true,
        ws: true,
        rewrite: (pathStr) => ('/api', '')
      }
    } */
  });
};