Re: [PATCH/RFC 6/6] clone: send refspec for single-branch clones

[Eric Sunshine <sunshine@sunshineco.com>]

On Fri, Apr 15, 2016 at 3:19 PM, David Turner <dturner@twopensource.com> wrote:
> For single-branch clones (when we know in advance what the remote
> branch name will be), send a refspec so that the server doesn't
> tell us about any other refs.
>
> Signed-off-by: David Turner <dturner@twopensource.com>
> ---
> diff --git a/builtin/clone.c b/builtin/clone.c
> @@ -1010,7 +1010,21 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
> +       if (option_single_branch && option_branch) {
> +               struct refspec branch_refspec = {0};
> +
> +               if (starts_with(option_branch, "refs/")) {
> +                       branch_refspec.src = xstrdup(option_branch);
> +               } else {
> +                       struct strbuf buf = STRBUF_INIT;
> +                       strbuf_addf(&buf, "refs/heads/%s", option_branch);
> +                       branch_refspec.src = strbuf_detach(&buf, NULL);

branch_refspec.src = xstrfmt("refs/heads/%s", option_branch);

> +               }
> +               refs = transport_get_remote_refs(transport, &branch_refspec, 1);
> +               free(branch_refspec.src);
> +       } else {
> +               refs = transport_get_remote_refs(transport, NULL, 0);
> +       }