Re: [PATCH 10/17] odb/source: make `read_object_stream()` function pluggable

> Introduce a new callback function in `struct odb_source` to make the
> function pluggable.
>
> Signed-off-by: Patrick Steinhardt <ps@pks.im>
> ---
>  odb/source-files.c | 12 ++++++++++++
>  odb/source.h       | 23 +++++++++++++++++++++++
>  odb/streaming.c    |  9 ++-------
>  3 files changed, 37 insertions(+), 7 deletions(-)
>
> diff --git a/odb/source-files.c b/odb/source-files.c
> index f2969a1214..b50a1f5492 100644
> --- a/odb/source-files.c
> +++ b/odb/source-files.c
> @@ -55,6 +55,17 @@ static int odb_source_files_read_object_info(struct odb_source *source,
>  	return -1;
>  }
>
> +static int odb_source_files_read_object_stream(struct odb_read_stream **out,
> +					       struct odb_source *source,
> +					       const struct object_id *oid)
> +{
> +	struct odb_source_files *files = odb_source_files_downcast(source);
> +	if (!packfile_store_read_object_stream(out, files->packed, oid) ||
> +	    !odb_source_loose_read_object_stream(out, source, oid))
> +		return 0;
> +	return -1;