Re: [PATCH 1/6] test-lib: introduce test_commit_bulk

[Eric Sunshine <sunshine@sunshineco.com>]

On Fri, Jun 28, 2019 at 7:04 PM SZEDER Gábor <szeder.dev@gmail.com> wrote:
> On Fri, Jun 28, 2019 at 05:32:35PM -0400, Eric Sunshine wrote:
> > On Fri, Jun 28, 2019 at 5:39 AM Jeff King <peff@peff.net> wrote:
> > > +       in_dir=${indir:+-C "$indir"}
> >
> > Doesn't this suffer the problem in which some older/broken
> > shells[1][2][3][4] incorrectly [...]
>
> I think we don't need any of those "${indir:+-C "$indir"}" parameter
> expansions and could simply use 'git -C "$indir" cmd...' everywhere.
> $indir is set to empty right at the start of the function, and 'git -C
> "" ...' works and doesn't change the working directory.

I recall the discussion around the meaning of `-C ""` when that
command line option was introduced. The conclusion was that  the
zero-length argument should mean "this directory" since that's how `cd
""` behaves. However, I don't think that behavior ever got documented,
and it's not necessarily obvious. An alternative would be to default
'indir' to ".", which should give the same result and be easily
understood.