title: Is there a way to control which repositories Leiningen will search by default?
body: <p>When you run Leiningen search without a project, it attempts to download the repository index from <a href="http://repo1.maven.org" rel="nofollow noreferrer">http://repo1.maven.org</a> and clojars.org.    Is there any way I can pass in an environment variable to download this index from the repository manager instead of these central repositories?</p>
  
  <p>I already use Maven for several builds and I have a settings.xml file that defines my repository as a global mirror.  I see that Leiningen uses Maven settings when it is trying to get Proxy configuration, but it doesn't use this same configuration for downloading the index files.</p>
  
  <p>I want to download the repository index from my repository manager because it would only take a few seconds.  (Download the index from Central takes a very long time.)   Am I missing something obvious?</p>