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Re: [libvirt] [PATCH] virsh: Remove --flags from nodesuspend



On 10/25/2012 03:03 AM, Michal Privoznik wrote:
> 
> While I agree that this design is broken I don't think we can do this.
> Okay, for now we only support 0; but what if in the future we invent a
> new flag? With current virsh one is able to use it however with your
> patch he isn't.

But you could apply that argument to any number of other interfaces that
take a flags argument.  virsh simply does not know how to export
arbitrary flags that were only added to newer servers - you HAVE to
upgrade your virsh to match.

> 
> Therefore I'd rather see slightly different approach. Like we do for
> other broken options/arguments in virsh - hide it, don't mention it
> anywhere but keep the code.

I disagree - there's no point in keeping a hidden argument.  It is a
disservice to users to make them have to pass a numeric flags value - if
they know they are talking to a new enough server that supports a new
flag, then they should be able to upgrade to a new enough virsh that
exposes that new flag as a human-readable option name, or directly code
their task using C or python bindings instead of bothering with virsh.

I think the patch is fine as-is.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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