rollup.config.mjs

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