notes: implement helpers needed for note copying during rewrite

diff --git a/transport-helper.c b/transport-helper.c
index fdf22562201d12d1321baae9157a0ca70053a7cb..107742891f6e68d4b103f61a425a585770b0d155 100644 (file)
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -102,6 +102,7 @@ static struct child_process *get_helper(struct transport *transport)
        int refspec_nr = 0;
        int refspec_alloc = 0;
        int duped;
+       int code;
 
        if (data->helper)
                return data->helper;
@@ -111,13 +112,18 @@ static struct child_process *get_helper(struct transport *transport)
        helper->out = -1;
        helper->err = 0;
        helper->argv = xcalloc(4, sizeof(*helper->argv));
-       strbuf_addf(&buf, "remote-%s", data->name);
+       strbuf_addf(&buf, "git-remote-%s", data->name);
        helper->argv[0] = strbuf_detach(&buf, NULL);
        helper->argv[1] = transport->remote->name;
        helper->argv[2] = remove_ext_force(transport->url);
-       helper->git_cmd = 1;
-       if (start_command(helper))
-               die("Unable to run helper: git %s", helper->argv[0]);
+       helper->git_cmd = 0;
+       helper->silent_exec_failure = 1;
+       code = start_command(helper);
+       if (code < 0 && errno == ENOENT)
+               die("Unable to find remote helper for '%s'", data->name);
+       else if (code != 0)
+               exit(code);
+
        data->helper = helper;
        data->no_disconnect_req = 0;