Gentoo Packages

There were legitimate complaints about the error-prone syncing of /etc/gitlab to /opt/gitlab/gitlab/config and the question arose "What's the point of it?"

I had three reasons for this setup:

• I wanted to use the standard Gentoo way for config placement and management.
• The /opt/gitlab/gitlab/config directory contains hundreds of files but normaly one will only change three or four of them. I wanted to have only the changed ones in /etc/config.
• Last but not least: I use sys-apps/etckeeper to always have a backup and the complete change history of the configs under /etc. With /etc/gitlab beeing a symlink to /opt/gitlab/gitlab/config my changes in /etc/gitlab weren't captured by etckeeper.

Also note that we cannot install the config to /etc/gitlab and symlink /opt/gitlab/gitlab/config to it since 'require_relative' in /opt/gitlab/gitlab/config/application.rb gets confused by symlinks.

I changed two things: 1. The /etc/gitlab to /opt/gitlab/gitlab/config sync is now done

 automatically on (re)start of GitLab. And if you change the config
 you always have to restart.

2. As "Gentoo is all about choices." I added the 'gitlab-config' USE

 flag. When set

• /etc/gibtlab isn't used.
• The aforementioned automatic sync isn't installed.
• /etc/env.d/42gentoo is installed which CONFIG_PROTECTs /opt/gitlab/gitlab/config to protect changes made in there to be overwritten on package updates.