Re: [PATCH 06/14] pull: support pull.ff config

> diff --git a/builtin/pull.c b/builtin/pull.c
> index 8982fdf..b305a47 100644
> --- a/builtin/pull.c
> +++ b/builtin/pull.c
> @@ -209,6 +209,28 @@ static void argv_push_force(struct argv_array *arr)
>  		argv_array_push(arr, "-f");
>  }
>  
> +/**
> + * If pull.ff is "true", returns "--ff". If pull.ff is "false", returns
> + * "--no-ff". If pull.ff is "only", returns "--ff-only". Otherwise, returns
> + * NULL.
> + */
> +static const char *config_get_ff(void)
> +{
> +	const char *value;
> +
> +	if (git_config_get_value("pull.ff", &value))
> +		return NULL;
> +	switch (git_config_maybe_bool("pull.ff", value)) {
> +		case 0:
> +			return "--no-ff";
> +		case 1:
> +			return "--ff";
> +	}
> +	if (!strcmp("pull.ff", "only"))