streampark-console/streampark-console-webapp/build/vite/utils/env.ts

/*
 * 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
 *
 *    https://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.
 */
import { join } from 'node:path';

import dotenv from 'dotenv';
import { readFile } from 'fs-extra';

/**
 * 获取当前环境下生效的配置文件名
 */
function getConfFiles() {
  const script = process.env.npm_lifecycle_script as string;
  const reg = new RegExp('--mode ([a-z_\\d]+)');
  const result = reg.exec(script);
  if (result) {
    const mode = result[1];
    return ['.env', `.env.${mode}`];
  }
  return ['.env', '.env.production'];
}

/**
 * Get the environment variables starting with the specified prefix
 * @param match prefix
 * @param confFiles ext
 */
export async function getEnvConfig(match = 'VITE_GLOB_', confFiles = getConfFiles()) {
  let envConfig = {};

  for (const confFile of confFiles) {
    try {
      const envPath = await readFile(join(process.cwd(), confFile), { encoding: 'utf8' });
      const env = dotenv.parse(envPath);
      envConfig = { ...envConfig, ...env };
    } catch (e) {
      console.error(`Error in parsing ${confFile}`, e);
    }
  }
  const reg = new RegExp(`^(${match})`);
  Object.keys(envConfig).forEach((key) => {
    if (!reg.test(key)) {
      Reflect.deleteProperty(envConfig, key);
    }
  });
  return envConfig;
}