Re: [PATCH 4/9] read_early_config(): optionally return the worktree's top-level directory

> Hi Brandon,
> 
> On Thu, 8 Jun 2017, Brandon Williams wrote:
> 
> > On 06/08, Johannes Schindelin wrote:
> > 
> > > Back to the worktree_dir variable.
> > > 
> > > I think part of the confusion here is that it may be left alone even
> > > when there is a worktree. For example, if we are already in the
> > > top-level directory. Or if the worktree somehow points to a different
> > > directory than the one containing the .git/ directory.
> > > 
> > > Therefore, I renamed this variable to `cdup_dir` to reflect the fact
> > > that it is only touched if Git determines that it is in a subdirectory
> > > of the directory containing the .git/ directory.
> > 
> > Ok, maybe I'm just not following but just from reading the variable name
> > I can't really understand what 'cdup_dir' means.
> 
> My idea would be that this is in line with the
> 
> 	git rev-parse --show-cdup
> 
> incantation.