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From: Toon Claes <toon@iotcl•com>
To: Patrick Steinhardt <ps@pks•im>, git@vger•kernel.org
Cc: Karthik Nayak <karthik.188@gmail•com>,
	Taylor Blau <me@ttaylorr•com>, Junio C Hamano <gitster@pobox•com>
Subject: Re: [PATCH v2 09/10] builtin/cat-file: deduplicate logic to iterate over all objects
Date: Tue, 01 Apr 2025 14:13:57 +0200	[thread overview]
Message-ID: <87jz84f5a2.fsf@iotcl.com> (raw)
In-Reply-To: <20250327-pks-cat-file-object-type-filter-v2-9-4bbc7085d7c5@pks.im>

Patrick Steinhardt <ps@pks•im> writes:

> Pull out a common function that allows us to iterate over all objects in
> a repository. Right now the logic is trivial and would only require two
> function calls, making this refactoring a bit pointless. But in the next
> commit we will iterate on this logic to make use of bitmaps, so this is
> about to become a bit more complex.
>
> Signed-off-by: Patrick Steinhardt <ps@pks•im>
> ---
>  builtin/cat-file.c | 85 ++++++++++++++++++++++++++++++------------------------
>  1 file changed, 48 insertions(+), 37 deletions(-)
>
> diff --git a/builtin/cat-file.c b/builtin/cat-file.c
> index 430320adfe9..6f5dbc821a2 100644
> --- a/builtin/cat-file.c
> +++ b/builtin/cat-file.c
> @@ -622,25 +622,18 @@ static int batch_object_cb(const struct object_id *oid, void *vdata)
>  	return 0;
>  }
>  
> -static int collect_loose_object(const struct object_id *oid,
> -				const char *path UNUSED,
> -				void *data)
> -{
> -	oid_array_append(data, oid);
> -	return 0;
> -}
> -
> -static int collect_packed_object(const struct object_id *oid,
> -				 struct packed_git *pack UNUSED,
> -				 uint32_t pos UNUSED,
> -				 void *data)
> +static int collect_object(const struct object_id *oid,
> +			  struct packed_git *pack UNUSED,
> +			  off_t offset UNUSED,
> +			  void *data)
>  {
>  	oid_array_append(data, oid);
>  	return 0;
>  }
>  
>  static int batch_unordered_object(const struct object_id *oid,
> -				  struct packed_git *pack, off_t offset,
> +				  struct packed_git *pack,
> +				  off_t offset,
>  				  void *vdata)
>  {
>  	struct object_cb_data *data = vdata;
> @@ -654,23 +647,6 @@ static int batch_unordered_object(const struct object_id *oid,
>  	return 0;
>  }
>  
> -static int batch_unordered_loose(const struct object_id *oid,
> -				 const char *path UNUSED,
> -				 void *data)
> -{
> -	return batch_unordered_object(oid, NULL, 0, data);
> -}
> -
> -static int batch_unordered_packed(const struct object_id *oid,
> -				  struct packed_git *pack,
> -				  uint32_t pos,
> -				  void *data)
> -{
> -	return batch_unordered_object(oid, pack,
> -				      nth_packed_object_offset(pack, pos),
> -				      data);
> -}
> -
>  typedef void (*parse_cmd_fn_t)(struct batch_options *, const char *,
>  			       struct strbuf *, struct expand_data *);
>  
> @@ -803,6 +779,45 @@ static void batch_objects_command(struct batch_options *opt,
>  
>  #define DEFAULT_FORMAT "%(objectname) %(objecttype) %(objectsize)"
>  
> +typedef int (*for_each_object_fn)(const struct object_id *oid, struct packed_git *pack,
> +				  off_t offset, void *data);
> +
> +struct for_each_object_payload {
> +	for_each_object_fn callback;
> +	void *payload;
> +};
> +
> +static int batch_one_object_loose(const struct object_id *oid,
> +				  const char *path UNUSED,
> +				  void *_payload)
> +{
> +	struct for_each_object_payload *payload = _payload;
> +	return payload->callback(oid, NULL, 0, payload->payload);
> +}
> +
> +static int batch_one_object_packed(const struct object_id *oid,
> +				   struct packed_git *pack,
> +				   uint32_t pos,
> +				   void *_payload)
> +{
> +	struct for_each_object_payload *payload = _payload;
> +	return payload->callback(oid, pack, nth_packed_object_offset(pack, pos),
> +				 payload->payload);
> +}
> +
> +static void batch_each_object(for_each_object_fn callback,
> +			      unsigned flags,
> +			      void *_payload)

Why is this `_payload` typeless? I see it only getting passed in
`struct object_cb_data`, is there a reason to hide this type? With
payload being wrapped in payload I think it's beneficial to keep type
info where possible.

-- 
Toon

  reply	other threads:[~2025-04-01 12:14 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-21  7:47 [PATCH 0/9] builtin/cat-file: allow filtering objects in batch mode Patrick Steinhardt
2025-02-21  7:47 ` [PATCH 1/9] builtin/cat-file: rename variable that tracks usage Patrick Steinhardt
2025-02-21  7:47 ` [PATCH 2/9] builtin/cat-file: wire up an option to filter objects Patrick Steinhardt
2025-02-26 15:20   ` Toon Claes
2025-02-28 10:51     ` Patrick Steinhardt
2025-02-28 17:44       ` Junio C Hamano
2025-03-03 10:40         ` Patrick Steinhardt
2025-02-27 11:20   ` Karthik Nayak
2025-02-21  7:47 ` [PATCH 3/9] builtin/cat-file: support "blob:none" objects filter Patrick Steinhardt
2025-02-26 15:22   ` Toon Claes
2025-02-27 11:26   ` Karthik Nayak
2025-02-21  7:47 ` [PATCH 4/9] builtin/cat-file: support "blob:limit=" " Patrick Steinhardt
2025-02-21  7:47 ` [PATCH 5/9] builtin/cat-file: support "object:type=" " Patrick Steinhardt
2025-02-26 15:23   ` Toon Claes
2025-02-28 10:51     ` Patrick Steinhardt
2025-02-21  7:47 ` [PATCH 6/9] pack-bitmap: expose function to iterate over bitmapped objects Patrick Steinhardt
2025-02-24 18:05   ` Junio C Hamano
2025-02-25  6:59     ` Patrick Steinhardt
2025-02-25 16:59       ` Junio C Hamano
2025-02-27 23:26       ` Taylor Blau
2025-02-28 10:54         ` Patrick Steinhardt
2025-02-27 23:23     ` Taylor Blau
2025-02-27 23:32       ` Junio C Hamano
2025-02-27 23:39         ` Taylor Blau
2025-02-21  7:47 ` [PATCH 7/9] pack-bitmap: introduce function to check whether a pack is bitmapped Patrick Steinhardt
2025-02-27 23:33   ` Taylor Blau
2025-02-21  7:47 ` [PATCH 8/9] builtin/cat-file: deduplicate logic to iterate over all objects Patrick Steinhardt
2025-02-21  7:47 ` [PATCH 9/9] builtin/cat-file: use bitmaps to efficiently filter by object type Patrick Steinhardt
2025-02-27 11:38   ` Karthik Nayak
2025-02-27 23:48   ` Taylor Blau
2025-03-27  9:43 ` [PATCH v2 00/10] builtin/cat-file: allow filtering objects in batch mode Patrick Steinhardt
2025-03-27  9:43   ` [PATCH v2 01/10] builtin/cat-file: rename variable that tracks usage Patrick Steinhardt
2025-04-01  9:51     ` Karthik Nayak
2025-04-02 11:13       ` Patrick Steinhardt
2025-04-07 20:25         ` Junio C Hamano
2025-03-27  9:43   ` [PATCH v2 02/10] builtin/cat-file: wire up an option to filter objects Patrick Steinhardt
2025-04-01 11:45     ` Toon Claes
2025-04-02 11:13       ` Patrick Steinhardt
2025-04-01 12:05     ` Karthik Nayak
2025-04-02 11:13       ` Patrick Steinhardt
2025-03-27  9:43   ` [PATCH v2 03/10] builtin/cat-file: support "blob:none" objects filter Patrick Steinhardt
2025-04-01 12:22     ` Karthik Nayak
2025-04-01 12:31       ` Karthik Nayak
2025-04-02 11:13         ` Patrick Steinhardt
2025-03-27  9:43   ` [PATCH v2 04/10] builtin/cat-file: support "blob:limit=" " Patrick Steinhardt
2025-03-27  9:44   ` [PATCH v2 05/10] builtin/cat-file: support "object:type=" " Patrick Steinhardt
2025-03-27  9:44   ` [PATCH v2 06/10] pack-bitmap: allow passing payloads to `show_reachable_fn()` Patrick Steinhardt
2025-04-01 12:17     ` Toon Claes
2025-04-02 11:13       ` Patrick Steinhardt
2025-03-27  9:44   ` [PATCH v2 07/10] pack-bitmap: add function to iterate over filtered bitmapped objects Patrick Steinhardt
2025-03-27  9:44   ` [PATCH v2 08/10] pack-bitmap: introduce function to check whether a pack is bitmapped Patrick Steinhardt
2025-04-01 11:46     ` Toon Claes
2025-04-02 11:13       ` Patrick Steinhardt
2025-03-27  9:44   ` [PATCH v2 09/10] builtin/cat-file: deduplicate logic to iterate over all objects Patrick Steinhardt
2025-04-01 12:13     ` Toon Claes [this message]
2025-04-02 11:13       ` Patrick Steinhardt
2025-04-03 18:24         ` Toon Claes
2025-03-27  9:44   ` [PATCH v2 10/10] builtin/cat-file: use bitmaps to efficiently filter by object type Patrick Steinhardt
2025-04-02 11:13 ` [PATCH v3 00/11] builtin/cat-file: allow filtering objects in batch mode Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 01/11] builtin/cat-file: rename variable that tracks usage Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 02/11] builtin/cat-file: introduce function to report object status Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 03/11] builtin/cat-file: wire up an option to filter objects Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 04/11] builtin/cat-file: support "blob:none" objects filter Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 05/11] builtin/cat-file: support "blob:limit=" " Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 06/11] builtin/cat-file: support "object:type=" " Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 07/11] pack-bitmap: allow passing payloads to `show_reachable_fn()` Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 08/11] pack-bitmap: add function to iterate over filtered bitmapped objects Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 09/11] pack-bitmap: introduce function to check whether a pack is bitmapped Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 10/11] builtin/cat-file: deduplicate logic to iterate over all objects Patrick Steinhardt
2025-04-02 11:13   ` [PATCH v3 11/11] builtin/cat-file: use bitmaps to efficiently filter by object type Patrick Steinhardt
2025-04-03  8:17   ` [PATCH v3 00/11] builtin/cat-file: allow filtering objects in batch mode Karthik Nayak
2025-04-08  0:32     ` Junio C Hamano

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