<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Another option that has occurred to me after talking with Tim Kientzle is to use <b class="">git submodules</b><div class=""><br class=""></div><div class="">submodules lock other clones to a specific revision. Our Packages/ directory is already a directory of clones.</div><div class=""><br class=""></div><div class="">I have not given it a lot of thought yet, but there is possibly power in reusing this existing part of git.</div><div class=""><br class=""></div><div class="">Mailed here for input.</div></body></html>