Hello!

Difficult one to explain, I used tsup with a 2 packages @nestjs/typeorm and typeorm. Took me several hours to debug but it appears that the outputed commonjs is importing typeorm modules from @nestjs/typeorm because the vars it creates for each module here is both typeorm?

For example, it appears require_typeorm() is typeorm and require_typeorm2() is @nestjs/typeorm. That's ok but when I get to the code snippet in question, I'm importing from typeorm which is changed to required_typeorm2() resulting in my imported var to be undefined.

Hope this makes sense to someone? I'm guessing there's a mismatch and the packagename is changed somewhere perhaps to remove the org name? Only a guess, wouldn't know where to look.

I will be doing a work around for this which will be to external one of these packages and zip that package with my bundled file.

Using v6.3.3

tsupconf

import { defineConfig } from 'tsup'
import fs from 'fs'

const pkgJson = JSON.parse(fs.readFileSync('package.json', 'utf-8'))

export default defineConfig({
  entry: ['src/http.ts'],
  target: 'node14',
  clean: true,
  // minify: config.NODE_ENV === 'production',
  esbuildOptions: (opts) => {
    opts.resolveExtensions = ['.ts', '.mjs', '.js']
  },
  noExternal: Object.keys(pkgJson.dependencies),
  external: [
    '@nestjs/microservices',
    '@nestjs/websockets',
    'cache-manager',
  ],
})

tsconfigs

{
  "compilerOptions": {
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "jsx": "react",
    "module": "commonjs",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "target": "es6",
    "noImplicitAny": false,
    "moduleResolution": "node",
    "skipLibCheck": true,
    "resolveJsonModule": true,
    "sourceMap": true,
    "outDir": "./dist"
  },
  "include": ["./src/**/*"],
  "exclude": [
    "./dist",
    "./node_modules",
    "./src/tests/coverage",
    "./src/**/*.spec.ts",
    "./src/**/__mocks__"
  ]
}