esbuild.config.js

import esbuild from 'esbuild'
import { sassPlugin } from 'esbuild-sass-plugin'
import process from 'process'
import builtins from 'builtin-modules'
import glsl from 'esbuild-plugin-glsl'
import nodeExternals from 'esbuild-plugin-node-externals'

const banner = `
/* eslint-disable */
/*
THIS IS A GENERATED/BUNDLED FILE BY ESBUILD
if you want to view the source, please visit the github repository of this plugin
*/
`

const prod = process.argv[2] === 'production'

const context = await esbuild.context({
  banner: {
    js: banner
  },
  entryPoints: ['./index.ts'],
  plugins: [
    sassPlugin(),
    glsl({
      minify: true
    }),
    nodeExternals({
      packagePaths: 'package.json',
      include: ['./lib/*', './mode/*', './addon/*']
    })
  ],
  bundle: true,
  external: ['@lezer/common', '@lezer/highlight', '@lezer/lr', ...builtins],
  format: 'cjs',
  target: 'es6',
  logLevel: 'info',
  sourcemap: prod ? false : 'inline',
  treeShaking: true,
  outfile: './index.js'
})

if (prod) {
  await context.rebuild()
  process.exit(0)
} else {
  await context.watch()
}