Re: [PATCH 4/4] branch: add '--show-description' option

[Eric Sunshine <sunshine@sunshineco.com>]

On Mon, Jan 1, 2018 at 5:54 PM, SZEDER Gábor <szeder.dev@gmail.com> wrote:
> 'git branch' has an option to edit a branch's description, but lacks
> the option to show that description.
>
> Therefore, add a new '--show-description' option to do just that, as a
> more user-friendly alternative to 'git config --get
> branch.$branchname.description':
>   [...]
>   - errors out with a proper error message when the given branch
>     doesn't exist (but exits quietly with an error code when the
>     branch does exit but has no description, just like the 'git config'

s/exit/exist/

>     query does).
>
> Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
> ---
> diff --git a/builtin/branch.c b/builtin/branch.c
> @@ -737,6 +741,35 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
> +       } else if (show_description) {
> +               [...]
> +               if (!argc) {
> +                       if (filter.detached)
> +                               die(_("cannot show description on detached HEAD"));
> +                       branch_name = head;
> +               } else if (argc == 1)
> +                       branch_name = argv[0];
> +               else
> +                       die(_("cannot show description of more than one branch"));

Aside from paralleling the single branch accepted by
--edit-description, why this limitation? (Just curious; I don't feel
strongly one way or the other.)