rollup.config.mjs

// Re: https://github.com/rollup/plugins/issues/1366
import { fileURLToPath } from 'node:url'

import { nodeResolve } from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import dts from 'rollup-plugin-dts'
import esbuild from 'rollup-plugin-esbuild'
import terser from '@rollup/plugin-terser'
import rollupReplace from '@rollup/plugin-replace'

const __filename = fileURLToPath(import.meta.url)
globalThis.__filename = __filename

function replace(opts) {
  return rollupReplace({
    ...opts,
    preventAssignment: true,
  })
}

const external = ['shiki', 'skia-canvas']
const globals = {
  shiki: 'shiki',
}

export default [
  {
    input: 'src/index.ts',
    external,
    output: [
      {
        file: 'dist/index.js',
        format: 'cjs',
      },
      {
        file: 'dist/index.mjs',
        format: 'esm',
      },
    ],
    plugins: [
      replace({
        __BROWSER__: JSON.stringify(false),
      }),
      esbuild(),
      nodeResolve(),
      commonjs(),
    ],
  },
  {
    input: 'src/index.ts',
    external,
    output: [
      {
        file: 'dist/index.iife.js',
        format: 'iife',
        extend: true,
        name: 'shiki',
        globals,
      },
      {
        file: 'dist/index.iife.min.js',
        format: 'iife',
        extend: true,
        name: 'shiki',
        plugins: [terser()],
        globals,
      },
      {
        file: 'dist/index.browser.mjs',
        format: 'esm',
        globals,
      },
    ],
    treeshake: {
      moduleSideEffects: false, 
    },
    plugins: [
      replace({
        __BROWSER__: JSON.stringify(true),
      }),
      esbuild(),
      nodeResolve(),
      commonjs(),
    ],
  },
  {
    input: 'src/index.ts',
    output: [
      {
        file: 'dist/index.d.ts',
        format: 'es',
      },
    ],
    plugins: [dts()],
  },
]