[Piglit] [PATCH] dir-locals.el: Adds White Space support

[Ilia Mirkin]

Acked-by: Ilia Mirkin <imirkin at alum.mit.edu>

I won't bother asking why one whitespace-line-column is set to 79 and
the other to 80. I'm sure the answer would just disappoint me.

On Wed, Nov 9, 2016 at 11:29 AM, Andres Gomez <agomez at igalia.com> wrote:
> The White Space package, which is available since GNU Emacs 22, is
> loaded and activated locally in prog-mode and cmake-mode.
>
> Also, using White Space variables, we set highlighting through faces
> on wrong indentation and the maximum length of a coding line.
>
> Notice that:
>  - The highlighting for the characters beyond the set length of a
>    coding line is not activated by default, only for wrong
>    indentations.
>  - If the White Space package is not available, errors on loading or
>    activation are ignored.
>  - If the White Space mode is not activated the set variables would
>    not have any effect.
>
> v2: python-mode inherits from prog-mode
> v3: Removed too long lines trail highlighting, as suggested by Ilia
>     Mirkin.
>
> Signed-off-by: Andres Gomez <agomez at igalia.com>
> ---
>  .dir-locals.el | 17 +++++++++++++----
>  1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/.dir-locals.el b/.dir-locals.el
> index 3bdca17..2a37aaf 100644
> --- a/.dir-locals.el
> +++ b/.dir-locals.el
> @@ -1,11 +1,20 @@
>  ((nil . ((indent-tabs-mode . t)
>          (tab-width . 8)
> -        (show-trailing-whitespace . t)))
> +        (show-trailing-whitespace . t)
> +        (whitespace-style face indentation)
> +        (whitespace-line-column . 79)))
>   (prog-mode .
> -           ((c-file-style . "linux")))
> +           ((c-file-style . "linux")
> +            (eval ignore-errors
> +                  (require 'whitespace)
> +                  (whitespace-mode 1))))
>   (cmake-mode .
> -            ((cmake-tab-width . 8)))
> +            ((cmake-tab-width . 8)
> +             (eval ignore-errors
> +                   (require 'whitespace)
> +                   (whitespace-mode 1))))
>   (python-mode .
>               ((indent-tabs-mode . nil)
> -              (tab-width . 4)))
> +              (tab-width . 4)
> +              (whitespace-line-column . 80)))
>   )
> --
> 2.9.3
>