New Local Git Repository - ISISComputingGroup/ibex_developers_manual GitHub Wiki
These are created in /isis/git on control-svcs.isis.cclrc.ac.uk see here
When creating a new repository make sure you add
[http]
receivepack = true
to the config file of the repository or pushes will not work
Cloning is via something like
git clone http://control-svcs.isis.cclrc.ac.uk/gitroot/instconfigs/common.git