Re: [Qemu-devel] [PATCH] rev5: support colon in filenames

Markus Armbruster
2009-07-16T13:45:38Z

Anthony Liguori <aliguori@us.ibm.com> writes:

> Blue Swirl wrote:
>> Then how about something like:
>> -drive name=hda,if=ide,cache=off,file_is_arg -filearg foo.img
>> -drive name=vda,if=virtio,cache=writeback,file_comes_next -patharg foo.img
>> -drive name=sdb,if=scsi,unit=1,fnarg -fnarg boo.img
>>
>
> The explicit ordering part seems clunky to me. How about:
>
> -drive name=vda,if=virtio -drive.vda.file filename.img
>
> What's nice about this syntax is it generalizes well. You could have:
>
> -drive.vda.if virtio -drive.vda.file filename.img
> -net nic,model=rtl8139,name=foo -net.foo.macaddr 00:11:43:55:44:22

Sanest proposal so far. Just put filenames in separate arguments, as
with almost every other program.

Instead of name=, let's use id= from Gerd's qdev work.

Why "-drive.ID.NAME VALUE", "-net.ID.NAME VALUE" and so forth, i.e. one
option per object with parameters? Assuming the ID name space is flat,
a single option suffices. What about "-set ID.NAME=VALUE"?

Quoting is problematic. Not only because it necessarily breaks some
filenames that used to work, also because the shell quotes, too. I
don't enjoy counting backslashes.