Add currently best clang-format configuration to repository?

[Gedare Bloom]

On Wed, Jul 5, 2023 at 5:27 PM Chris Johns <chrisj at rtems.org> wrote:
>
> On 6/7/2023 4:21 am, Gedare Bloom wrote:
> > OK I will prepare something soon. I have my WIP version at
> > https://git.rtems.org/gedare/rtems.git/tree/_clang-format?h=test-reformat
> >
> > I think the format file itself should be just about stable. I will
> > make one more test and check of it within the next few days, and then
> > send the patch hopefully early next week.
>
> How will the version of clang-format we need be handled?
>
> Will an older version complain if our style is used with it? I am concerned I
> use and trust the output however I make a mistake and use an old clang-format
> that does not generate the correct format. I doubt I would spot that happening
> when reviewing the output.
>
Certain (new) options in the style file will/can trigger an error that
terminates the reformatting in (older) versions of clang-format that
don't support the given option. I think we would be in that territory
with our style.

> Chris