build.js

const args = require('yargs')
  .option('target')
  .demandOption('target')
  .parse(process.argv.slice(2))

try {
  const { name } = require('./package.json')

  const OUTPUT_MAP = {
    linux: `./dist/${name}-linux`,
    darwin: `./dist/${name}-macos`,
    win32: `./dist/${name}-windows.exe`
  }

  const packageData = require('./package.json')

  const { target } = args
  const targetKey = `pkg-${target}`

  const pkgConfig = packageData[targetKey]

  if (!pkgConfig) throw new Error(`Invalid target, must supply ${targetKey} in the package.json`)

  packageData.pkg = pkgConfig

  console.log('Preparing package.json')

  require('fs').writeFileSync('./package.json', JSON.stringify(packageData, null, '  '))

  console.log('Rebuilding dependencies for', target)

  require('child_process').execSync(`npm i --target_arch=x64 --target_platform=${target}`, { stdio: ['pipe', 'pipe', 'pipe'] })

  const outputName = OUTPUT_MAP[target] || pkgConfig.output

  if (!outputName) throw new Error('Must specify appropriate output name in config')

  console.log('Compiling, output to', outputName)

  require('child_process').execSync(`pkg ./ --output ${outputName} --compress Brotli`, { stdio: ['pipe', 'pipe', 'pipe'] })

  console.log('Cleaning package.json')

  delete packageData.pkg

  require('fs').writeFileSync('./package.json', JSON.stringify(packageData, null, '  '))

  console.log('Done!')
} catch (e) {
  if (e.stdout) console.error(e.stdout.toString('utf8'))
  else throw e
}