rsnext/packages/next/next-server/lib/router/rewrite-url-for-export.ts

export function rewriteUrlForNextExport(url: string): string {
  const [pathname, hash] = url.split('#')
  // tslint:disable-next-line
  let [path, qs] = pathname.split('?')
  if (path) {
    path = path.replace(/\/$/, '')
    // Append a trailing slash if this path does not have an extension
    if (!/\.[^/]+\/?$/.test(path)) path += `/`
  }
  if (qs) path += '?' + qs
  if (hash) path += '#' + hash
  return path
}