next.js/test/integration/build-trace-extra-entries/app/lib/fetch-data.js

import fs from 'fs'
import path from 'path'

const getCmsData = require('some-cms')

try {
  fs.readdirSync(path.join(process.cwd(), 'public/exclude-me'))
} catch (_) {}

export function fetchData() {
  return getCmsData()
}