push: teach --recurse-submodules the on-demand option

diff --git a/builtin/push.c b/builtin/push.c
index 35cce532f2bb632e01c0de0a8e6f9e1395eece88..f9d21921ba2226b00f2ca376aacade281179b436 100644 (file)
--- a/builtin/push.c
+++ b/builtin/push.c
@@ -224,13 +224,21 @@ static int option_parse_recurse_submodules(const struct option *opt,
                                   const char *arg, int unset)
 {
        int *flags = opt->value;
+
+       if (*flags & (TRANSPORT_RECURSE_SUBMODULES_CHECK |
+                     TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND))
+               die("%s can only be used once.", opt->long_name);
+
        if (arg) {
                if (!strcmp(arg, "check"))
                        *flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK;
+               else if (!strcmp(arg, "on-demand"))
+                       *flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND;
                else
                        die("bad %s argument: %s", opt->long_name, arg);
        } else
-               die("option %s needs an argument (check)", opt->long_name);
+               die("option %s needs an argument (check|on-demand)",
+                               opt->long_name);
 
        return 0;
 }