Re: [PATCH 3/7] odb/source-packed: flag known-bad objects as corrupt and not missing

[Patrick Steinhardt <ps@pks.im>]

On Tue, Aug 18, 2026 at 11:17:47AM -0700, Junio C Hamano wrote:
> Patrick Steinhardt <ps@pks.im> writes:
> > @@ -618,8 +619,11 @@ int fill_midx_entry(struct multi_pack_index *m,
> >  		return 0;
> >  
> >  	if (oidset_size(&p->bad_objects) &&
> > -	    oidset_contains(&p->bad_objects, oid))
> > +	    oidset_contains(&p->bad_objects, oid)) {
> > +		if (bad_pack && !*bad_pack)
> > +			*bad_pack = p;
> >  		return 0;
> > +	}
> 
> Hmph, so the idea is that if you have even one bad thing, you are
> marked as bad, because who knows what other parts of you are broken?

No, not quite. We don't mark the whole pack itself as bad, we only mark
the objects that's contained in there as bad. The only reason why we
also bubble up the pack is so that we can provide a better error message
in a subsequent commit, where we can then tell the user which pack it
was specifically that contains the bad commit.

That's by itself not visible in this commit yet, but I do mention it as
part of the commit message.

Patrick