freesewing/packages/rendertest/rollup.config.js

import resolve from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import json from '@rollup/plugin-json'
import { terser } from 'rollup-plugin-terser'
import peerDepsExternal from 'rollup-plugin-peer-deps-external'
import { name, version, description, author, license, main, module, rollup } from './package.json'

const output = [
  {
    file: main,
    format: 'cjs',
    sourcemap: true,
    exports: rollup.exports
  }
]
if (typeof module !== 'undefined')
  output.push({
    file: module,
    format: 'es',
    sourcemap: true
  })

export default {
  input: 'src/index.js',
  output,
  plugins: [
    peerDepsExternal(),
    resolve({ modulesOnly: true }),
    commonjs(),
    json(),
    terser({
      output: {
        preamble: `/**\n * ${name} | v${version}\n * ${description}\n * (c) ${new Date().getFullYear()} ${author}\n * @license ${license}\n */`
      }
    })
  ]
}