How can I download CiviCRM tar file with Drush?
Mathieu a.k.a @bgm (who runs much of the CiviCRM project's infrastructure) wrote this:

https://forum.civicrm.org/index.php?topic=30003.msg128559#msg128559

To summarize: [I checked the link to that example makefile - still works]!

I deploy with "Drush make":

* deploy from my git repos or from the civicrm standard ones (drush make example.make)
* run GenCode.php

Example makefile: https://gist.github.com/mlutfy/5310366