title: Bringing third party .proto files to ScalaPB
body: <p>How can I tell <a href="https://scalapb.github.io/" rel="nofollow noreferrer">ScalaPB</a> that it should fetch <code>.proto</code> dependencies from the Internet, e.g. </p>
  
  <p><code>google/api/annotations.proto</code> from <a href="https://github.com/googleapis/googleapis/tree/master/google/api" rel="nofollow noreferrer">https://github.com/googleapis/googleapis/tree/master/google/api</a></p>
  
  <p>Background:</p>
  
  <p>The aim is to read etcd v3 API from Scala, via gRPC.</p>
  
  <p>I've picked the etcd specific <code>.proto</code> files from their project, and placed under mine. It works. However, the dependencies start running deep, and there must be a better way.</p>
  
  <p><a href="https://github.com/googleapis/googleapis/tree/master/google/api" rel="nofollow noreferrer">https://github.com/googleapis/googleapis/tree/master/google/api</a></p>