Below are the steps to install GitLab 5.3 on a fresh Mac OS X server 10.8.4 (server version 2.2)
Ref backup article from http://www.makebetterthings.com/git/install-gitlab-5-3-on-mac-os-x-server-10-8-4/
1) Install a fresh mac ox x 10.8.4
2) Create user group “git” and a user “git” in this group
3) Enable remote login for “git” user
4) Install Xcode 4.6.2
5) Install command line tools in Xcode.
6) Install Home brew
2) Create user group “git” and a user “git” in this group
3) Enable remote login for “git” user
4) Install Xcode 4.6.2
5) Install command line tools in Xcode.
6) Install Home brew