Re: [Qemu-block] [Qemu-devel] [PATCH] qemu-img convert: Deprecate using -n and -o together

[Eric Blake]

On 8/9/19 4:11 AM, Kevin Wolf wrote:
> bdrv_create options specified with -o have no effect when skipping image
> creation with -n, so this doesn't make sense. Warn against the misuse
> and deprecate the combination so we can make it a hard error later.
> 
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  qemu-img.c           | 5 +++++
>  qemu-deprecated.texi | 7 +++++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/qemu-img.c b/qemu-img.c
> index 79983772de..d9321f6418 100644
> --- a/qemu-img.c
> +++ b/qemu-img.c
> @@ -2231,6 +2231,11 @@ static int img_convert(int argc, char **argv)
>          goto fail_getopt;
>      }
>  
> +    if (skip_create && options) {
> +        warn_report("-o has no effect when skipping image creation");
> +        warn_report("This will become an error in future QEMU versions.");

It looks a bit odd to have two output lines, where one is a phrase and
the other is a full sentence. But I don't have any better ideas how to
represent it, so

Reviewed-by: Eric Blake <address@hidden>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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