Function bundleExists

__tests__/upgrade.test.ts:30–32

(present: Set<string>)

describe('detectInstallMethod', () => {
  // A bundle exists if a vendored node + launcher sit next to lib/.
  function bundleExists(present: Set<string>) {
    return (p: string) => present.has(p.replace(/\\/g, '/'));
  }

  it('detects a unix bundle and derives the install dir from the versions/ layout', () => {
    const root = '/home/u/.codegraph/versions/v0.9.9';