Add support for git describe

[jon-armstrong-zz]

Please consider adding support git describe command and its options.

[smithsp]

Consider the following:

import git
r = git.repo.Repo('./')
r.git.describe()

Is this not sufficient?

[jon-armstrong-zz]

That works, thanks. I didn't find it documented anywhere, so I assumed it wasn't supported.

[nuzz]

This should probably be somewhere in the documentation. I couldn't find this in the docs so I googled and it lead me here to this closed issue.

[corydodt]

Was this feature removed? The sample code no longer works.

[ogajduse]

@corydodt Works for me. Out from Python3 console:
import git
r = git.repo.Repo("./..")
r.git.describe()
'0.0.3-8-g8c66b5c'

[ankostis]

Maybe this part of the documents help: Using git directly.

[corydodt]

My bad! I was omitting the .git. part of the API.