Glob Pattern Issue with 'entry' Array in tsdown Configuration

[waptik]

Reproduction link or steps

https://stackblitz.com/edit/tsdown-afdkzpkz?file=package.json

What is expected?

If i have the following entries inside my config

entry: [
    './src/helpers/**/*.ts',
    './src/index.ts',
    './src/constants/index.ts',
  ],

then my pkg#export should have the following exports instead

"exports": {
    ".": "./dist/index.js",
    "./constants/index": "./dist/constants/index.js",
    "./environment": "./dist/environment.js",
    "./singleton": "./dist/singleton.js",
    "./slug": "./dist/slug.js",
    "./type": "./dist/type.js",
    "./package.json": "./package.json"
  }

What is actually happening?

In my config file, i have set an array of three entries to entry object like this:

entry: [
    './src/helpers/**/*.ts',
    './src/index.ts',
    './src/constants/index.ts',
  ],

I get the following:

"exports": {
    ".": "./dist/index.js",
    "./constants/index": "./dist/constants/index.js",
    "./helpers/environment": "./dist/helpers/environment.js",
    "./helpers/singleton": "./dist/helpers/singleton.js",
    "./helpers/slug": "./dist/helpers/slug.js",
    "./helpers/type": "./dist/helpers/type.js",
    "./package.json": "./package.json"
  }

But when the helpers glob entry is the only one present entry: ['./src/helpers/**/*.ts'], then all files under files under helpers are present as root inside pkg#export

"exports": {
    "./environment": "./dist/environment.js",
    "./singleton": "./dist/singleton.js",
    "./slug": "./dist/slug.js",
    "./type": "./dist/type.js",
    "./package.json": "./package.json"
  }

Any additional comments?

Is the current behaviour what to expect?

[sxzz]

This is the expected behavior. When you use glob patterns, the original file structure is preserved, just as tsc does. To avoid this, use an object entry instead (note: object entries do not support globs).