show path from git root (instead of dir name)

[savv]

Hi I'm incredibly happy with the default oh my zsh installation/theme. I would only like to change one thing - when I'm in a git repo I see: ➜ curdirname git:(branchname)

For example, at the root directory, called mygitrepo, I currently see ➜ mygitrepo git:(branchname); if I was in a subdirectory gitrepo/src/foobar, I currently see ➜ foobar git:(branchname)

Instead I would like to see the following, respectively: ➜ mygitrepo git:(branchname) and ➜ mygitrepo/src/foobar git:(branchname).

What's the best way to achieve this?