Re: [PATCH 2/4] index-pack: optionally reject packs with duplicate objects

> On Thu, Aug 22, 2013 at 3:52 AM, Jeff King <peff@peff.net> wrote:
> > @@ -68,6 +81,16 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec
> >         else
> >                 sorted_by_sha = list = last = NULL;
> >
> > +       if (opts->duplicates == WRITE_IDX_DUPLICATES_REJECT) {
> > +               struct pack_idx_entry **dup;
> > +
> > +               dup = find_duplicate(sorted_by_sha, nr_objects,
> > +                                    sizeof(*sorted_by_sha), sha1_compare);
> > +               if (dup)
> > +                       die("pack has duplicate entries for %s",
> > +                           sha1_to_hex((*dup)->sha1));
> > +       }
> > +
> >         if (opts->flags & WRITE_IDX_VERIFY) {
> >                 assert(index_name);
> >                 f = sha1fd_check(index_name);
> 
> write_idx_file() is called after index-pack processes all delta
> objects. Could resolve_deltas() go cyclic with certain duplicate
> object setup?