title: Git Smart HTTP - User Authentication for certain repositories
body: <p>I was wondering how you authenticate between git repos for smart http.  </p>
  
  <p>For example, I have all my repositories in <code>/repos/</code>, however, I would like to assign "John Doe" to only two of them.  The other I want "Jane Doe" to access; however, I don't want either one of them to be able to access each other's repositories.</p>
  
  <p><strong>By the way:</strong>
  I do have user authentication working in genernal with http auth, it's the separating priv. for certain users is what I'm really after.</p>