Re: [PATCH 1/2] rev-parse: add --filename-prefix option

[John Keeping <john@keeping.me.uk>]

On Mon, Apr 08, 2013 at 08:07:32AM -0700, Junio C Hamano wrote:
> John Keeping <john@keeping.me.uk> writes:
> 
> > Yes (ish), the intended usage is something like this:
> >
> >     prefix=$(git rev-parse --show-prefix)
> >     cd_to_toplevel
> >     ... parse options here ...
> >     # Convert remaining arguments (filenames) into top-level paths:
> >     eval "set $(git rev-parse --prefix "$prefix" --sq -- "$@")"
> >
> > The "ish" is that my current implementation introduced a new variable
> > instead of simply resetting the existing "prefix" variable, which I
> > assume is what you mean.
> 
> This is very sensible.

Which bit specifically?  I assume you agree with the intended usage, but
do you also mean that resetting the prefix returned from
setup_git_directory is the right way to approach this?