core/packages/cli/tsup.config.ts

import { defineConfig } from 'tsup';

const isDev = process.env.npm_lifecycle_event === 'dev:main'; // This must match the npm script name

export default defineConfig({
  clean: false,
  tsconfig: 'tsconfig.json',
  dts: true,
  splitting: false,
  entry: ['src/index.ts'],
  format: ['esm'],
  minify: false,
  metafile: false,
  sourcemap: true,
  target: 'esnext',
  outDir: 'dist',
  async onSuccess() {
    if (isDev) {
      console.debug('Running onSuccess() in dev');
      // exec: node dist/index.js
    }
  },
  banner: {
    js: "import { createRequire as createRequireFromMetaUrl } from 'node:module';const require = createRequireFromMetaUrl(import.meta.url);",
  },
});