Subject: last commit in a directory

From: Leonid Podolny <[email-masked]>
Date: Tue, 25 Jan 2011 10:29:46 +0200

Hi,
I have a really simple question: how do I find a last commit for the given directory inside the repository? I want to avoid rebuilding the specific part of the project if there were no changes in it since the last build, so I need to find the sha of the last time the directory was changed.
  Thanks, L.