title: How to check that all git-lfs tracked and committed files are pointers?
body: <p>As git-lfs requires some manual setup (install git-lfs, run <code>git lfs install</code> once) this can lead to developers not committing git-lfs tracked file types correctly. I would like to check that for pull requests on our continuous integration system.</p>
  
  <p>How to check that all git-lfs tracked and committed files are pointers? <a href="https://github.com/git-lfs/git-lfs/blob/master/commands/command_filter_process.go#L196-L201" rel="noreferrer">There is a check</a> which is run e.g. when rebasing but this is not available as cli-command.</p>
  
  <p>I would like to have something like this:</p>
  
  <pre><code>$ git clone https://...
  $ [git lfs check-for-pointers]
  Encountered 35 file(s) that should have been pointers, but weren't:
      file1.png
      ...
  </code></pre>