Re: [PATCH qemu v2] QEMU coding style mandates spaces for indentation. This change replaces TABs in block files.

[Eric Blake <eblake@redhat.com>]

On Thu, Sep 30, 2021 at 02:55:16PM +0200, Kevin Wolf wrote:
> > > When we're changing these lines anyway, let's make sure to have
> > > consistent alignment with the surrounding code. So I would prefer
> > > something like:
> > > 
> > > +    .bdrv_close               = parallels_close,
> > >       .bdrv_child_perm          = bdrv_default_perms,
> > > 
> > > Rather than:
> > > 
> > > +    .bdrv_close     = parallels_close,
> > >       .bdrv_child_perm          = bdrv_default_perms,
> > > 
> > > In most cases, there are already inconsistencies in the BlockDriver
> > > definitions, but let's use the chance to make it a little better.
> > 
> > 
> > Or may be drop alignment around '=' at all, to have
> > 
> >    .bdrv_child_perm = bdrv_default_perms,
> >    .bdrv_co_block_status = parallels_co_block_status,
> >    .bdrv_has_zero_init = bdrv_has_zero_init_1,
> > 
> > ?
> 
> You're right that this would make it easy to keep things consistent, but
> I think it hurts readability a lot, even compared to the current, often
> inconsistent state.

I agree that the alignment adds a bit of readability, but also
understand that it adds a maintenacne burden.  Thus, in code I manage,
I'm fine with either style (no extra spaces, or '=' lined up); and can
live with different styles in different files (which I then will honor
when doing a grunt-work patch that touches all of the block drivers).
But what I don't like is when a single file cannot be consistent with
itself on which of those two styles it is using - a file that uses
aligned '=' really needs to put that '=' far enough to the right that
an added long-named member doesn't cause frequent reindentation of the
rest of the members.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org