Re: [PATCH v2] fetch —object-info-format: client option for object-info

> Add ‘—object-info-format’ option to fetch. This option allows
> the client to make an object-info [1] command request to a server
> that supports protocol v2.
>
> The transport implementation uses vtables [2], similar to how Git
> fetches refs, to determine whether a process needs to be taken over
> before sending the object-info request. Different protocols
> require different setups for making requests.
>
> [1] https://lore.kernel.org/git/20210420233830.2181153-1-bga@google.com/
> [2] https://lore.kernel.org/git/26f276956001a120cc9105b0071762c2fd4a45c5.15=
> 13287544.git.jonathantanmy@google.com/
>
> Helped-by: Jonathan Tan <jonathantanmy@google.com>
> Signed-off-by: Calvin Wan <calvinwan@google.com>
>
> ---
> Please ignore the patch above. It was sent with a stale patch message.
>  builtin/fetch.c              | 26 ++++++++++++
>  fetch-pack.c                 | 53 +++++++++++++++++++++++
>  fetch-pack.h                 |  7 ++++
>  t/t5583-fetch-object-info.sh | 81 ++++++++++++++++++++++++++++++++++++
>  transport-helper.c           | 12 ++++++
>  transport-internal.h         |  1 +
>  transport.c                  | 59 ++++++++++++++++++++++++++
>  transport.h                  |  1 +
>  8 files changed, 240 insertions(+)
>  create mode 100755 t/t5583-fetch-object-info.sh
>
> diff --git a/builtin/fetch.c b/builtin/fetch.c
> index 5f06b21f8e..b48d9e93d0 100644
> --- a/builtin/fetch.c
> +++ b/builtin/fetch.c
> @@ -29,6 +29,9 @@
>  #include "commit-graph.h"
>  #include "shallow.h"
>  #include "worktree.h"
> +#include "protocol.h"
> +#include "pkt-line.h"
> +#include "connect.h"
>  
>  #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
>  
> @@ -37,6 +40,7 @@ static const char * const builtin_fetch_usage[] = {
>  	N_("git fetch [<options>] <group>"),
>  	N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
>  	N_("git fetch --all [<options>]"),
> +	N_("git fetch --object-info-format=[<arguments>] <remote> [<object-ids>]"),
>  	NULL
>  };