title: Howto determine if an SVN working copy needs updating (from a script)?
body: <p>I'd like to determine from a batch file on Windows if a local SVN working copy needs to be updated from the server. On a unix-like machine, I would run "svn status -u" and count the '*'s. How do I achieve the same thing in a batch file?</p>
  
  <p>Background: I'm trying to determine if a dependency library is out-of-date since it takes a <em>long</em> time to re-build it and we only update it about once every 3 months. This is for an automated build process.</p>