Re: [Qemu-devel] [PATCH 7/7] qemu-img: allow specifying image as a set of options args

[Paolo Bonzini <pbonzini@redhat.com>]

On 23/12/2015 17:55, Daniel P. Berrange wrote:
>>> > > A third option would be to keep using positional arguments, but
>>> > > add a '--source-opts' *boolean* flag to indicate how to interpret
>>> > > the positional arguments.  ie without --source-opts we use the
>>> > > historic syntax, but with --source-opts, we assume the full QemuOpts
>>> > > syntax.
>> > 
>> > Oh, nice compromise. It's relatively discoverable (grep --help output),
>> > preserves back-compat of old scripts, and offers the full power for
>> > clients that want the full power.
> I've implemented this now and it makes the patches soooo much simpler
> too, so an added win.

Hmm, looks like I'm a bit late, but here's another possibility: making
--source-options (aka -o) take an argument, and if you specify both
--source-options and the positional argument, the latter is added as a
"file" key.

This way you can do "qemu-img info --object secret... -o secret=foo
iscsi://foo/".

Paolo