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 const isAnalyze = process.env.ANALYZE
   8
   9 export default {
  10   input: 'src/index.ts',
  11   output: {
  12     ...(isDevelopmentBuild ? { dir: 'lib' } : { file: 'lib/index.js' }),
  13     format: 'cjs',
  14     sourcemap: !!isDevelopmentBuild,
  15     ...(isDevelopmentBuild && { preserveModules: true }),
  16     ...(isDevelopmentBuild && { preserveModulesRoot: 'src' }),
  17     ...(!isDevelopmentBuild && { plugins: [terser({ numWorkers: 2 })] })
  18   },
  19   external: ['async_hooks', 'cluster', 'events', 'worker_threads'],
  20   plugins: [
  21     typescript({
  22       tsconfig: isDevelopmentBuild
  23         ? 'tsconfig.development.json'
  24         : 'tsconfig.json'
  25     }),
  26     del({
  27       targets: ['lib/*']
  28     }),
  29     isAnalyze && analyze()
  30   ]
  31 }