webpack-builder-react-xd/lib/env.js

小盾安全前端团队构建器

const path = require('path');
const { appDirectory } = require('./paths');

const NODE_ENV = process.env.NODE_ENV;
if (!NODE_ENV) {
  throw new Error(
    'The NODE_ENV environment variable is required but was not specified.'
  );
}

process.env.NODE_PATH = (process.env.NODE_PATH || '')
  .split(path.delimiter)
  .filter(folder => folder && !path.isAbsolute(folder))
  .map(folder => path.resolve(appDirectory, folder))
  .join(path.delimiter);

// 获取 NODE_ENV 和 REACT_APP_* 等环境变量，用于通过DefinePlugin 注入应用中
const REACT_APP = /^REACT_APP_/i;

function getClientEnvironment() {
  const raw = Object.keys(process.env)
    .filter(key => REACT_APP.test(key))
    .reduce(
      (env, key) => {
        env[key] = process.env[key];
        return env;
      },
      {
        NODE_ENV: process.env.NODE_ENV || 'development',
        MICRO: process.env.MICRO || false,
      }
    );

  const stringified = {
    'process.env': Object.keys(raw).reduce((env, key) => {
      env[key] = JSON.stringify(raw[key]);
      return env;
    }, {}),
  };

  return { raw, stringified };
}

module.exports = getClientEnvironment;