Function getExternalRefDelta

__tests__/test-packObjects.js:65–65

    const fullpath = path.join(gitdir, filepath)
    expect(await fs.exists(fullpath)).toBe(true)
    const getExternalRefDelta = oid => readObject({ fs, cache, gitdir, oid })
    await indexPack({ fs, dir: gitdir, filepath, gitdir, cache })
    await Promise.all(
      oids.map(async oid => {