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From: Eric Wong <e@80x24•org>
To: git@vger•kernel.org
Cc: Jeff King <peff@peff•net>, Patrick Steinhardt <ps@pks•im>
Subject: [PATCH v2 08/10] cat-file: batch-command uses content_limit
Date: Fri, 23 Aug 2024 22:46:28 +0000	[thread overview]
Message-ID: <20240823224630.1180772-9-e@80x24.org> (raw)
In-Reply-To: <20240823224630.1180772-1-e@80x24.org>

As with the normal `--batch' mode, we can use the content_limit
round trip optimization to avoid a redundant lookup.  The only
tricky thing here is we need to enable/disable setting the
object_info.contentp field depending on whether we hit an `info'
or `contents' command.

t1006 is updated to ensure we can switch back and forth between
`info' and `contents' commands without problems.

Signed-off-by: Eric Wong <e@80x24•org>
---
 builtin/cat-file.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 2aedd62324..067cdbdbf9 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -417,7 +417,8 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
 		case OI_DBCACHED:
 			unlock_delta_base_cache();
 		}
-	} else if (data->type == OBJ_BLOB) {
+	} else {
+		assert(data->type == OBJ_BLOB);
 		if (opt->buffer_output)
 			fflush(stdout);
 		if (opt->transform_mode) {
@@ -452,30 +453,6 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
 			stream_blob(oid);
 		}
 	}
-	else {
-		enum object_type type;
-		unsigned long size;
-		void *contents;
-
-		contents = repo_read_object_file(the_repository, oid, &type,
-						 &size);
-		if (!contents)
-			die("object %s disappeared", oid_to_hex(oid));
-
-		if (use_mailmap) {
-			size_t s = size;
-			contents = replace_idents_using_mailmap(contents, &s);
-			size = cast_size_t_to_ulong(s);
-		}
-
-		if (type != data->type)
-			die("object %s changed type!?", oid_to_hex(oid));
-		if (data->info.sizep && size != data->size && !use_mailmap)
-			die("object %s changed size!?", oid_to_hex(oid));
-
-		batch_write(opt, contents, size);
-		free(contents);
-	}
 }
 
 static void print_default_format(struct strbuf *scratch, struct expand_data *data,
@@ -689,6 +666,7 @@ static void parse_cmd_contents(struct batch_options *opt,
 			     struct expand_data *data)
 {
 	opt->batch_mode = BATCH_MODE_CONTENTS;
+	data->info.contentp = &data->content;
 	batch_one_object(line, output, opt, data);
 }
 
@@ -698,6 +676,7 @@ static void parse_cmd_info(struct batch_options *opt,
 			   struct expand_data *data)
 {
 	opt->batch_mode = BATCH_MODE_INFO;
+	data->info.contentp = NULL;
 	batch_one_object(line, output, opt, data);
 }
 
@@ -839,7 +818,8 @@ static int batch_objects(struct batch_options *opt)
 	 * Likewise, grab the content in the initial request if it's small
 	 * and we're not planning to filter it.
 	 */
-	if (opt->batch_mode == BATCH_MODE_CONTENTS) {
+	if ((opt->batch_mode == BATCH_MODE_CONTENTS) ||
+			(opt->batch_mode == BATCH_MODE_QUEUE_AND_DISPATCH)) {
 		data.info.typep = &data.type;
 		if (!opt->transform_mode) {
 			data.info.sizep = &data.size;

  parent reply	other threads:[~2024-08-23 22:47 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-15  0:35 [PATCH v1 00/10] cat-file speedups Eric Wong
2024-07-15  0:35 ` [PATCH v1 01/10] packfile: move sizep computation Eric Wong
2024-07-24  8:35   ` Patrick Steinhardt
2024-07-15  0:35 ` [PATCH v1 02/10] packfile: allow content-limit for cat-file Eric Wong
2024-07-24  8:35   ` Patrick Steinhardt
2024-07-26  7:30     ` Eric Wong
2024-07-15  0:35 ` [PATCH v1 03/10] packfile: fix off-by-one in content_limit comparison Eric Wong
2024-07-24  8:35   ` Patrick Steinhardt
2024-07-26  7:43     ` Eric Wong
2024-07-15  0:35 ` [PATCH v1 04/10] packfile: inline cache_or_unpack_entry Eric Wong
2024-07-15  0:35 ` [PATCH v1 05/10] cat-file: use delta_base_cache entries directly Eric Wong
2024-07-24  8:35   ` Patrick Steinhardt
2024-07-26  7:42     ` Eric Wong
2024-08-18 17:36       ` assert vs BUG [was: [PATCH v1 05/10] cat-file: use delta_base_cache entries directly] Eric Wong
2024-08-19 15:50         ` Junio C Hamano
2024-07-15  0:35 ` [PATCH v1 06/10] packfile: packed_object_info avoids packed_to_object_type Eric Wong
2024-07-24  8:36   ` Patrick Steinhardt
2024-07-26  8:01     ` Eric Wong
2024-07-15  0:35 ` [PATCH v1 07/10] object_info: content_limit only applies to blobs Eric Wong
2024-07-15  0:35 ` [PATCH v1 08/10] cat-file: batch-command uses content_limit Eric Wong
2024-07-15  0:35 ` [PATCH v1 09/10] cat-file: batch_write: use size_t for length Eric Wong
2024-07-15  0:35 ` [PATCH v1 10/10] cat-file: use writev(2) if available Eric Wong
2024-07-24  8:35 ` [PATCH v1 00/10] cat-file speedups Patrick Steinhardt
2024-08-23 22:46 ` [PATCH v2 " Eric Wong
2024-08-23 22:46   ` [PATCH v2 01/10] packfile: move sizep computation Eric Wong
2024-09-17 10:06     ` Taylor Blau
2024-08-23 22:46   ` [PATCH v2 02/10] packfile: allow content-limit for cat-file Eric Wong
2024-08-26 17:10     ` Junio C Hamano
2024-08-27 20:23       ` Eric Wong
2024-09-17 10:10         ` Taylor Blau
2024-09-17 21:15           ` Junio C Hamano
2024-08-23 22:46   ` [PATCH v2 03/10] packfile: fix off-by-one in content_limit comparison Eric Wong
2024-08-26 16:55     ` Junio C Hamano
2024-09-17 10:11       ` Taylor Blau
2024-08-23 22:46   ` [PATCH v2 04/10] packfile: inline cache_or_unpack_entry Eric Wong
2024-08-26 17:09     ` Junio C Hamano
2024-10-06 17:40       ` Eric Wong
2024-08-23 22:46   ` [PATCH v2 05/10] cat-file: use delta_base_cache entries directly Eric Wong
2024-08-26 21:31     ` Junio C Hamano
2024-08-26 23:05       ` Junio C Hamano
2024-08-23 22:46   ` [PATCH v2 06/10] packfile: packed_object_info avoids packed_to_object_type Eric Wong
2024-08-26 21:50     ` Junio C Hamano
2024-08-23 22:46   ` [PATCH v2 07/10] object_info: content_limit only applies to blobs Eric Wong
2024-08-26 22:02     ` Junio C Hamano
2024-08-23 22:46   ` Eric Wong [this message]
2024-08-26 22:13     ` [PATCH v2 08/10] cat-file: batch-command uses content_limit Junio C Hamano
2024-08-23 22:46   ` [PATCH v2 09/10] cat-file: batch_write: use size_t for length Eric Wong
2024-08-27  5:06     ` Junio C Hamano
2024-08-23 22:46   ` [PATCH v2 10/10] cat-file: use writev(2) if available Eric Wong
2024-08-27  5:41     ` Junio C Hamano
2024-08-27 15:43       ` Junio C Hamano

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