汇总看不到来自 commonjs 模块的命名导出

Question

我有一个简单的 AWS Lambda 函数 (state-info.ts)，我正在用 Rollup 摇树，它给了我以下错误：

[!] 错误：'DB' 不是由 ../../forest-fire/abstracted-admin/lib/index.js 导出的

https://github.com/rollup/rollup/wiki/Troubleshooting#name-is-not-exported-by-module
src/state-info.ts (10:9)
8: import { Lambda } from "aws-sdk";
9: import { STATES } from "./models/shared";
10: import { DB } from "abstracted-admin";
            ^
11: import { StateInfo } from "./models/StateInfo";
12: import { IApiResponse } from "./shared/ApiRetriever";

现在碰巧我写了它抱怨的模块abstracted-admin（目前在 npm 上的 v0.6.5），它确实将 DB 导出为命名导出（和 作为默认导出）。但是由于某种原因，Rollup 不高兴。

我为完整的上下文创建了所有内容的视频演练：video。

对于那些不喜欢视频的人，这里是关键事实/文件：

abstracted-admin/lib/index.d.ts:

import { DB } from "./db";
export default DB;
export { DB, IFirebaseConfig, IFirebaseListener } from "./db";

abstracted-admin/lib/index.js:

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const db_1 = require("./db");
exports.default = db_1.DB;
var db_2 = require("./db");
exports.DB = db_2.DB;

并来自abstracted-admin/package.json：

{
  ...
  "files": ["lib"],
  "main": "lib/index.js",
  "typings": "lib/index.d.ts",
}

state-info.ts（也就是正在汇总的文件）：

import {
  IDictionary,
  AWSGatewayCallback,
  IAWSGatewayRequest,
  IAWSGatewayResponse
} from "common-types";
import GetStateInfo from "./vote-smart/get-state-info";
import { Lambda } from "aws-sdk";
import { STATES } from "./models/shared";
import { DB } from "abstracted-admin";
import { StateInfo } from "./models/StateInfo";
import { IApiResponse } from "./shared/ApiRetriever";
/** ... */

同时我的汇总配置是：

import cjs from "rollup-plugin-commonjs";
import resolve from "rollup-plugin-node-resolve";
import json from "rollup-plugin-json";
import ts from "rollup-plugin-typescript2";
import globals from "rollup-plugin-node-globals";

export default {
  input: "src/state-info.ts",
  output: {
    file: "lib/state-info-rolled.js",
    format: "cjs"
  },
  external: ["aws-sdk"],
  plugins: [
    globals(),
    json(),
    cjs({
      include: "node_modules/**",
      exclude: ["node_modules/aws-sdk/**"]
    }),
    ts(),
    resolve({
      jsnext: true,
      main: true,
      browser: false,
      preferBuiltins: false,
      extensions: [".js", ".json"]
    })
  ]
};

Answer 1

我相信 Rollup 在这种情况下预计会出现以下情况：

import admin from "abstracted-admin";
const { DB } = admin;

这与 Webpack 的行为不同，已经抓到我好几次了。