Re: [Qemu-devel] [PATCH RFC v2 26/47] qapi-types: Convert to QAPISchemaVisitor, fixing flat unions

[Eric Blake]

On 07/27/2015 10:09 AM, Markus Armbruster wrote:

> 
>> I'm sure there are further things that could be done, but at this point,
>> I hope you get my picture, and I'll quit focusing on this particular patch.
> 
> We need to decide how much code churn to accept just for making the diff
> of the generated code easier to review.

At this point, I'd be happy with just adding a script or other
high-level instructions in the commit message that says how to divide a
generated file into pieces (pull out all *List types into one piece, all
typedefs into another, etc) and which can be done both pre- and
post-patch.  With pieces in hand, if you can easily compare that each
pair is minimally different, then you have a nice reassurance that the
difference in the overall file is due merely to differences in how the
pieces are interleaved, and not to added or unintentionally dropped
material.  As you pointed out, there comes a point of diminishing
returns in trying to clean up code that will just be discarded.

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

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