title: Gitlab: commenting on full file rather than on diff?
body: <p>My understanding is that gitlab allows to comment on code only in the context of:</p>
  
  <ul>
  <li>merge requests</li>
  <li>when looking at commits
  In both case we can only comment on diffs between two commits.</li>
  </ul>
  
  <p>Things are developed <a href="https://stackoverflow.com/questions/17559719/how-to-set-up-a-code-review-using-gitlab">here</a>.</p>
  
  <p>This makes total sense in the context of continuous integration. Yet, on some occasion I would find extremely useful to comment on the full code of one commit, independently to its diffs with other commit. My understanding is this is not possible on gitlab, but I may be wrong ?</p>
  
  <p>ps: I have enterprise edition, in case that changes anything.</p>