title: How to ignore changes in some folders when developing locally?
body: <p>I'm using the Go SDK for the Google App Engine (it uses some parts of the Python SDK and calls into <code>dev_appserver.py</code> when running <code>goapp serve</code>). By default, it seems to watch <em>all</em> files and folders for changes. I have a crapload of bower dependencies in the static folder, and the SDK complains that it can't watch that many files.</p>
  
  <p>How to set the dev server to ignore changes in a folder?</p>
  
  <p><strong>Edit</strong>. Reading <code>devappserver2/watcher_common.py</code>, it seems that it ignores directories starting with <code>.</code>. I suppose in the worst case scenario, I could prefix folders with <code>.</code>, but it's a hack. There should be a configuration option, and I can't seem to find it.</p>