boardgame-core/tsup.config.ts

import { defineConfig } from 'tsup';
import { fileURLToPath } from 'url';
import { csvLoader } from 'inline-schema/csv-loader/rollup';

const srcDir = fileURLToPath(new URL('./src', import.meta.url));

export default defineConfig({
  entry: ['src/index.ts'],
  format: ['esm'],
  dts: true,
  clean: true,
  sourcemap: true,
  external: ['@preact/signals-core', 'mutative', 'inline-schema'],
  plugins: [csvLoader()],
  esbuildOptions(options) {
    options.alias = {
      '@': srcDir,
    };
  },
});