lindenmayer/rollup.esm.config.js at main · nylki/lindenmayer · GitHub

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import babel from 'rollup-plugin-babel';
import { terser } from 'rollup-plugin-terser';
import replace from 'rollup-plugin-replace';

let minifyEnv = process.env.minify || false;

const babelConf = {
  babelrc: false,
  presets: [
    ['@babel/preset-env', {
      targets: {
        esmodules: true
      },
      modules: false,
      loose: false
    }]
  ]
};


export default {
  input: 'lindenmayer.js',
  output: [
    {
      file: minifyEnv ? 'dist/lindenmayer.esm.min.js' : 'dist/lindenmayer.esm.js',
      format: 'esm'
    }
  ],
  plugins: [
  replace({
    include: 'polyfills/**',
    "__BUILD_FORMAT__": 'esm'
    }),
    babel(babelConf),
    minifyEnv ? terser({
      module: true,
      mangle: {
        reserved: ['LSystem'],
        toplevel: true
      },

    }) : {}
  ],

};