[libvirt] [PATCH v2 0/6] rewrite virt-host-validate to be data driven, using Go & YAML

Daniel P. Berrangé berrange at redhat.com
Mon Sep 30 14:32:04 UTC 2019


On Mon, Sep 30, 2019 at 12:03:22PM +0200, Andrea Bolognani wrote:
> On Fri, 2019-09-27 at 13:52 +0100, Daniel P. Berrangé wrote:
> > The really big difference though is that I replaced the use
> > of XML data files with YAML data files. This was done with
> > the aim of making the data more human friendly. XML is really
> > optimized for machines, not humans, so writing the data files
> > was not pretty. YAML is optimized for human readability, and
> > is actually even easier to consume in Go than the XML was,
> > so its a double win.
> 
> I'll add my own 0.2 $currency to what others have said.
> 
> I think Go is a fine language to use for this kind of tool, so I'm
> in favor of that; having a more granular view into the details of
> the system also looks like a good idea.
> 
> What I'm not sold on is the advantage of a YAML-driven approach:
> it seems to me that the same result could be achieved much more
> conveniently using regular Go code instead.
> 
> Perhaps it would be useful if you explained in detail why you
> decided to take this approach in the first place.

I've essentially answered this in my response to Martin's comment
in https://www.redhat.com/archives/libvir-list/2019-September/msg01419.html
so to avoid splitting the discussion I won't repeat it here.


Regards,
Daniel
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