Re: [Qemu-block] [PATCH 12/13] qemu-img: implement key management

[Max Reitz]

On 22.08.19 13:32, Daniel P. Berrangé wrote:
> On Tue, Aug 20, 2019 at 08:29:55PM +0200, Max Reitz wrote:
>> On 14.08.19 22:22, Maxim Levitsky wrote:
>>> Signed-off-by: Maxim Levitsky <address@hidden>
>>> ---
>>>  block/crypto.c   |  16 ++++++
>>>  block/crypto.h   |   3 +
>>>  qemu-img-cmds.hx |  13 +++++
>>>  qemu-img.c       | 140 +++++++++++++++++++++++++++++++++++++++++++++++
>>>  4 files changed, 172 insertions(+)
>>
>> Yes, this seems a bit weird.  Putting it under amend seems like the
>> natural thing if that works; if not, I think it should be a single
>> qemu-img subcommand instead of two.
> 
> I'm not convinced by overloading two distinct operations on to one
> sub-command - doesn't seem to give an obvious benefit to overload
> them & IME experiance overloading results in harder to understand
> commands due to having distinct args to each command.

Because it suits the qemu-img interface we currently have.  For example,
we have a single subcommand for internal snapshot management (“qemu-img
snapshot”), so I think it makes sense to have a single subcommand for
encrypted image management.

Max

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