[libvirt] [PATCH] virsh: Allow users to reedit rejected XML

[Eric Blake]

On 05/09/2012 07:52 AM, Daniel P. Berrange wrote:
> On Wed, May 09, 2012 at 03:36:26PM +0200, Michal Privoznik wrote:
>> If users {net-,pool-,}edit but make a mistake in XML all changes
>> are permanently lost. However, if virsh is running in interactive
>> mode we can as user if he wants to re-edit the file and correct
>> the mistakes.
>> ---
> 
>> +    dom_edited = virDomainDefineXML(ctl->conn, doc_edited);
>> +    if (!dom_edited) {
>> +        /* Redefine failed. If we are in interactive mode ask user
>> +         * if he wants to re-edit the XML. */
>> +        if (!ctl->imode ||
>> +            vshMakeStdinRaw(&ttyattr, false) < 0)
>> +            goto cleanup;
> 
> I don't see why this has to be restricted to interactive mode
> only. I almost always just run
> 
>    virsh edit foo
> 
> and there's no reason why we can't prompt to re-edit here too.
> 
> What you want to check is isatty(STDIN) so you can distinguish
> batch scripting.

And given that I don't want to bump to a new gnulib version until after
0.9.12, that means we probably should delay an isatty() solution until
after this patch is in:
https://www.redhat.com/archives/libvir-list/2012-May/msg00402.html

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

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