Re: [PATCH v3 2/2] tests(mingw): avoid very slow `mingw_test_cmp`

> On Sat, Nov 12, 2022 at 10:07:34PM +0000, Johannes Schindelin via GitGitGadget wrote:
> > From: Johannes Schindelin <johannes.schindelin@gmx.de>
> >
> > It is more performant to run `git diff --no-index` than running the
> > `mingw_test_cmp` code with MSYS2's Bash, i.e. the Bash that Git for
> > Windows uses. And a lot more readable.
>
> This makes sense, and motivates the changes below.
>
> > Note: Earlier attempts at fixing this involved a test helper that avoids
> > the overhead of the diff machinery, in favor of implementing a behavior
> > that is more in line with what `mingw_test_cmp` does now, but that
> > attempt saw a lot of backlash and distractions during review and was
> > therefore abandoned.
>
> But I do not think that this paragraph adds as much as we'd like to the
> historical record.

> What about the original approach did you have trouble pushing forward?
> Perhaps framing that as an alternative approach, along with why it
> didn't ultimately get merged would be a more useful recollection of
> previous attempts here.
>
> One thing that the commit message doesn't allude to (that is covered in
> the earlier discussion) is why it is important to pass
> `--ignore-cr-at-eol`. I think that is worth mentioning here.