rollup.config.ts

import { readFileSync } from 'node:fs'
import typescript from '@rollup/plugin-typescript'
import { nodeResolve } from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import { visualizer } from 'rollup-plugin-visualizer'
import { RollupOptions } from 'rollup'
import json from '@rollup/plugin-json'
const pkg = JSON.parse(
  readFileSync('./package.json', {
    encoding: 'utf8'
  })
)
// import replace from '@rollup/plugin-replace'
// import terser from '@rollup/plugin-terser'
const isProd = process.env.NODE_ENV === 'production'
const isDev = process.env.NODE_ENV === 'development'

const dependencies = pkg.dependencies as Record<string, string> | undefined

const config: RollupOptions = {
  input: { index: 'src/index.ts', cli: 'src/cli.ts' },
  output: [
    {
      dir: 'dist',
      format: 'cjs',
      sourcemap: isDev,
      exports: 'auto'
    }
  ],
  makeAbsoluteExternalsRelative: true,
  preserveEntrySignatures: 'strict',
  plugins: [
    json(),
    nodeResolve({
      preferBuiltins: true
    }),
    commonjs(),
    typescript({ tsconfig: './tsconfig.build.json', sourceMap: isDev })
  ],
  external: [...(dependencies ? Object.keys(dependencies) : [])]
}

export default config