title: SVN partial branch
body: <p>I'm new to SVN so this could be an easy question.</p>
  
  <p>We have a "trunk" with 1st level directories:</p>
  
  <pre><code>10 &lt;-- documents
  20 &lt;-- source code, db scripts, ...
  30 &lt;-- documents
  40 &lt;-- referenced 3rd party library-es
  </code></pre>
  
  <p>I made a "develop" branch from the "trunk".
  In "develop" we change our source code and after testing it we merge it to "trunk".</p>
  
  <p>The problem in that in directories "10" and "30" are stored *.doc files that are not needed for development so it is REQUIRED that "develop" branch doesn't have those directories.</p>
  
  <p>The solution should still:</p>
  
  <ol>
  <li>allow "svn update" on root folder of "develop" working copy, (20 and 40)</li>
  <li>that update should not re-create
  directories 10 and 30 and</li>
  <li>of course merging "develop" to "trunk" should NOT delete 10 or 30 in "trunk".</li>
  </ol>
  
  <p>EDIT:
  I forgot to mention that "source code" is not only in 20. There are referenced dll-s and build scripts etc. that are also on 1st level directory, lets say 40.</p>