Re: [PATCH v2 5/6] packfile: introduce macro to iterate through packs

> We have a bunch of different sites that want to iterate through all
> packs of a given `struct packfile_store`. This pattern is somewhat
> verbose and repetitive, which makes it somewhat cumbersome.
> 
> Introduce a new macro `repo_for_each_pack()` that removes some of the
> boilerplate.
> 
> Signed-off-by: Patrick Steinhardt <ps@pks.im>
> ---

> diff --git a/packfile.h b/packfile.h
> index 3f38c63476..49484a9b09 100644
> --- a/packfile.h
> +++ b/packfile.h
> @@ -136,6 +136,14 @@ void packfile_store_reprepare(struct packfile_store *store);
>  void packfile_store_add_pack(struct packfile_store *store,
>  			     struct packed_git *pack);
>  
> +/*
> + * Load and iterate through all packs of the given repository. This helper
> + * function will yield packfiles from all object sources connected to the
> + * repository.
> + */
> +#define repo_for_each_pack(repo, p) \
> +	for (p = packfile_store_get_all_packs(repo->objects->packfiles); p; p = p->next)