Re: [PATCH 11/17] refs: replace `refs_for_each_ref_in()`

> Patrick Steinhardt <ps@pks.im> writes:
> > diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
> > index 9032cc6327..02703f2fb8 100644
> > --- a/builtin/rev-parse.c
> > +++ b/builtin/rev-parse.c
> > @@ -613,13 +613,18 @@ static int opt_with_value(const char *arg, const char *opt, const char **value)
> >
> >  static void handle_ref_opt(const char *pattern, const char *prefix)
> >  {
> > -	if (pattern)
> > +	if (pattern) {
> >  		refs_for_each_glob_ref_in(get_main_ref_store(the_repository),
> >  					  show_reference, pattern, prefix,
> >  					  NULL);
> > -	else
> > -		refs_for_each_ref_in(get_main_ref_store(the_repository),
> > -				     prefix, show_reference, NULL);
> > +	} else {
> > +		struct refs_for_each_ref_options opts = {
> > +			.prefix = prefix,
> > +			.trim_prefix = strlen(prefix),
> 
> Tangent: I wonder if it makes sense to make `trim_prefix` a bool and
> then internally trim strlen(prefix). Is there a usecase where
> `.trim_prefix != strlen(prefix)`?