removing directories from repository

[Colin D Bennett]

On Wed, 17 Dec 2008 09:35:58 +1100
"Andrew King" <eurokang at gmail.com> wrote:

> Hi,
> Is it possible to permanently remove a directory from the history of a
> branch? ie.I have some tree external/mydir, I want to do a command
> such that it is removed as though it was never in the repository.
> 
> If it is not possible, how hard would it be to implement?
> 
> The most obvious application of this is someone adds a big file by
> mistake to the repo (or a library), and then you are stuck with all
> those files for eternity.

This seems to be a very frequently asked question.  Perhaps we should
document the answer somewhere in the user guide or elsewhere.

Regards,
Colin