Re: [PATCH 1/3] setup: drop return value from `read_repository_format()`

> On Wed, Dec 19, 2018 at 10:27:35AM -0500, Jeff King wrote:
> > I dunno. This is one of those dark corners of the code where we appear
> > to do the wrong thing, but nobody seems to have noticed or cared much,
> > and changing it runs the risk of breaking some obscure cases. I'm not
> > sure if we should bite the bullet and try to address that, or just back
> > away slowly and pretend we never looked at it. ;)
> 
> I will point out that with the SHA-256 work, reading the config file
> becomes essential for SHA-256 repositories, because we need to know the
> object format. Removing the config file leads to things blowing up in a
> bad way (what specific bad way I don't remember).
> 
> That may influence the direction we want to take in this work, or not.