text: 
  /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
  
  const path = require('path');
  const {build} = require('esbuild');
  
  const outFilePath = path.resolve(__dirname, '../dist/echarts.js');
  
  const umdMark = '// ------------- WRAPPED UMD --------------- //';
  const umdWrapperHead = `
  ${umdMark}
  (function (root, factory) {
      window.__DEV__ = true;
      if (typeof define === 'function' && define.amd) {
          // AMD. Register as an anonymous module.
          define(['exports'], factory);
      } else if (typeof exports === 'object' && typeof exports.nodeName !== 'string') {
          // CommonJS
          factory(exports);
      } else {
          // Browser globals
          factory((root.echarts = {}));
      }
  }(typeof self !== 'undefined' ? self : this, function (exports, b) {
  `;
  
  const umdWrapperTail = `
  }));`;
  
  build({
      entryPoints: [path.resolve(__dirname, '../src/echarts.all.ts')],
      outfile: outFilePath,
      format: 'cjs',
      sourcemap: true,
      bundle: true,
      banner: umdWrapperHead,
      footer: umdWrapperTail,
      watch: {
          async onRebuild(error) {
              if (error) {
                  console.error('watch build failed:', error)
              } else {
                  console.log('build done')
              }
          },
      },
  }).then(async () => {
      console.log('build done')
  }).catch(e => console.error(e.toString()))
  