smart-http: support shallow fetch/clone

diff --git a/builtin/clone.c b/builtin/clone.c
index 874e0fd0b6e3ea4882783c0b2377016d93bd989d..0b182cefc24f3ee790cb63a944cb98eb3b7a6206 100644 (file)
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -252,6 +252,12 @@ static int add_one_reference(struct string_list_item *item, void *cb_data)
                die(_("reference repository '%s' is not a local repository."),
                    item->string);
 
+       if (!access(mkpath("%s/shallow", ref_git), F_OK))
+               die(_("reference repository '%s' is shallow"), item->string);
+
+       if (!access(mkpath("%s/info/grafts", ref_git), F_OK))
+               die(_("reference repository '%s' is grafted"), item->string);
+
        strbuf_addf(&alternate, "%s/objects", ref_git);
        add_to_alternates_file(alternate.buf);
        strbuf_release(&alternate);
@@ -883,6 +889,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        remote = remote_get(option_origin);
        transport = transport_get(remote, remote->url[0]);
+       transport->cloning = 1;
 
        if (!transport->get_refs_list || (!is_local && !transport->fetch))
                die(_("Don't know how to clone %s"), transport->url);