bug#39452: [PATCH] vc-git-state fails for filenames with wildcards

[Dmitry Gutov]

Hi Wolfgang,

On 06.02.2020 16:59, Wolfgang Scherer wrote:
> When a filename contains shell wildcard characters matching one or more files, 
> e.g. `test[56].xx` matching both `test5.xx` and `test6.xx`:
>
>    -rw-r--r--  1 ws ws    0 Feb  6 08:51 test[56].xx
>    -rw-r--r--  1 ws ws    0 Feb  6 08:51 test5.xx
>    -rw-r--r--  1 ws ws    0 Feb  6 08:51 test6.xx
>
> The command `vc-git-state` does not work correctly.
>
> The attched patch fixes this:
>
> diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
> index 2caa287..0314e5e 100644
> --- a/lisp/vc/vc-git.el
> +++ b/lisp/vc/vc-git.el
> @@ -330,7 +330,7 @@ in the order given by `git status'."
>               ,@(when (version<= "1.7.6.3" (vc-git--program-version))
>                   '("--ignored"))
>               "--"))
> -        (status (apply #'vc-git--run-command-string file args)))
> +        (status (apply #'vc-git--run-command-string (shell-quote-argument 
> file) args)))
>       (if (null status)
>           ;; If status is nil, there was an error calling git, likely because
>           ;; the file is not in a git repo.

Thanks for the report and the patch.

I wonder how many other backends commands are broken for files like 
that: we basically never shell-quote file names.