Sandbox::https://github.com/unplugin/unplugin-icons/blob/main/tsdown.config.ts

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import * as fsPromises from 'node:fs/promises'

import { defineConfig } from 'tsdown'

const RE_DTS_EXTENSION = /\.d\.ts$/

export default defineConfig({

entry: ['src/*.ts'],

dts: true,

external: ['vue', 'vite', 'rollup', '@iconify/json/package.json'],

inlineOnly: ['@antfu/utils'],

exports: {

async customExports(exp) {

// replace this for await with `import { glob } from 'node:fs/promises'

// requires node v22.14.0+ => https://nodejs.org/api/fs.html

for await (const [key, types] of getDtsTypesFiles()) {

if (!exp[key]) {

exp[key] = { types }

}

return exp

})

async function* getDtsTypesFiles(): AsyncGenerator<[

key: string,

types: string,

], undefined, void> {

const files = await fsPromises.readdir('./types/')

for (const file of files) {

if (file.endsWith('.d.ts') && file !== 'index.d.ts') {

yield [`./types/${file.replace(RE_DTS_EXTENSION, '')}`, `./types/${file}`] as const

}