> This patch adds a new configuration parameter for the branch creation
> feature: 'branch.namePrefix'. It corresponds to the '--name-prefix'
> option of 'git branch' made as configuration parameter, and behaves
> exactly like it.
>
> Signed-off-by: VALERI Yoann <yoann.valeri@cea.fr>
> ---
> diff --git a/Documentation/config/branch.adoc b/Documentation/config/branch.adoc
> @@ -35,6 +35,11 @@ This option defaults to `never`.
> +`branch.namePrefix`::
> +       When a new branch is created with `git branch`, use the provided value as
> +       prefix for its name. Can be '@{current}' to use the current branch's name
> +       as prefix.

> diff --git a/branch.c b/branch.c
> @@ -368,18 +368,22 @@ int read_branch_desc(struct strbuf *buf, const char *branch_name)
>  void add_branch_prefix(const char *name_prefix,
>                                            const char *current_branch, struct strbuf *buf)
>  {
> -       int value = 0;
> +       char *config_prefix = NULL;
>
> -       if (!name_prefix)
> -               return;
> +       if (!name_prefix) {
> +               if (repo_config_get_string(the_repository, "branch.namePrefix",
> +                                                                  &config_prefix))
> +                       return;
>
> -       if (name_prefix[0] != '@') {
> -               strbuf_addstr(buf, name_prefix);
> -               return;
> +               name_prefix = config_prefix;
>         }
>
> -       if (strcmp(name_prefix, "@{current}") == 0)
> +       if (name_prefix[0] != '@')
> +               strbuf_addstr(buf, name_prefix);
> +       else if (strcmp(name_prefix, "@{current}") == 0)
>                 strbuf_addstr(buf, current_branch);
> +
> +    free(config_prefix);
>  }