tsup.config.ts

import { defineConfig } from 'tsup'
import * as preset from 'tsup-preset-solid'

const preset_options: preset.PresetOptions = {
  entries: [
    {
      entry: 'src/index.ts',
      dev_entry: true,
    },
    {
      entry: 'src/esbuild.ts',
    },
    {
      entry: 'src/rollup.ts',
    },
    {
      entry: 'src/rspack.ts',
    },
    {
      entry: 'src/vite.ts',
    },
    {
      entry: 'src/webpack.ts',
    },
  ],
  drop_console: true,
  cjs: true,
  modify_esbuild_options(esbuildOptions) {
    esbuildOptions.external = ['vite']
    return esbuildOptions
  },
}

export default defineConfig((config) => {
  const watching = !!config.watch

  const parsed_options = preset.parsePresetOptions(preset_options, watching)

  if (!watching) {
    const package_fields = preset.generatePackageExports(parsed_options)

    console.log(`package.json: \n\n${JSON.stringify(package_fields, null, 2)}\n\n`)

    preset.writePackageJson(package_fields)
  }

  return preset.generateTsupOptions(parsed_options)
})