Feature Request: preserve vendor/.git

[dt]

As discussed on #vendor gopherslack, some workflows involve storing vendor in its own git repo and then embedding it via a submodule -- this can be nice for large vendor dirs with high churn, where that history is uninteresting as it is derivable form the lock file.

It would be nice if dep ensured that when it manipulated or otherwise (re-)generated a vendor directory, it preserved the previous .git file or directory if there was one, similar to the functionality in Masterminds/glide#699.

[darkowlzz]

Has anybody started working on this? I would be very happy to work on this and get familiar with the code base.

[sdboyer]

@darkowlzz great! nope, no one's claimed it, and I'd say this would be a great place to start for contributions - the change here should be reasonably straightforward. SafeWriter.Write() is likely where the changes will eventually need to be. I think you should be able to work backwards from there, but feel free to ask questions here or in slack!