rollup.config.mjs

   1 import typescript from 'rollup-plugin-typescript2'
   2 import analyze from 'rollup-plugin-analyzer'
   3 import { terser } from 'rollup-plugin-terser'
   4 import del from 'rollup-plugin-delete'
   5
   6 const isDevelopmentBuild = process.env.BUILD === 'development'
   7
   8 export default {
   9   input: 'src/index.ts',
  10   output: [
  11     {
  12       dir: 'lib',
  13       format: 'cjs',
  14       sourcemap: !!isDevelopmentBuild,
  15       preserveModules: true,
  16       preserveModulesRoot: 'src'
  17     },
  18     isDevelopmentBuild && {
  19       file: 'lib.min/index.js',
  20       format: 'cjs',
  21       sourcemap: !!isDevelopmentBuild,
  22       plugins: [terser({ numWorkers: 2 })]
  23     }
  24   ],
  25   external: ['async_hooks', 'cluster', 'events', 'worker_threads'],
  26   plugins: [
  27     typescript({
  28       tsconfig: isDevelopmentBuild
  29         ? 'tsconfig.development.json'
  30         : 'tsconfig.json'
  31     }),
  32     del({
  33       targets: ['lib/*', 'lib.min/*']
  34     }),
  35     isDevelopmentBuild && analyze()
  36   ]
  37 }