Re: [Qemu-devel] [PATCH 08/10] vl: handle -object ?

[Eric Blake]

On 09/06/2018 10:12 AM, Marc-André Lureau wrote:

In the subject, s/\?/help/

> Signed-off-by: Marc-André Lureau <address@hidden>
> ---
>   vl.c | 13 +++++++++++++
>   1 file changed, 13 insertions(+)
>
> diff --git a/vl.c b/vl.c
> index 5ba06adf78..8a5fd0c81f 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -2731,6 +2731,19 @@ static int machine_set_property(void *opaque,
>    */
>   static bool object_create_initial(const char *type)
>   {
> +    if (is_help_option(type)) {
> +        GSList *l, *list;
> +
> +        error_printf("List of user creatable objects:\n");
> +        list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
> +        for (l = list; l != NULL; l = l->next) {
> +            ObjectClass *oc = OBJECT_CLASS(l->data);
> +            error_printf("%s\n", object_class_get_name(oc));

This prints to stderr,

> +        }
> +        g_slist_free(list);
> +        exit(0);

then exits with status 0.  I'd much rather successful help text be 
printed to stdout.

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org