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[PATCH GSoC 4/5] serve: advertise type capability

From
Pablo Sabater <pabloosabaterr@gmail.com>
Date
Jul 25, 2026, 11:55 UTC
Message-ID
<20260725-objecttype-support-v1-4-2d4ca3bbabf1@gmail.com>
In-Reply-To
<20260725-objecttype-support-v1-0-2d4ca3bbabf1@gmail.com>

The server and the client can handle type requests but the client won't ask for it until the server advertises it.

Add type to the advertised capabilities so the client knows that it can request it.

Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Mentored-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Pablo Sabater <pabloosabaterr@gmail.com>
---
 serve.c                                |  4 ++--
 t/t1017-cat-file-remote-object-info.sh | 10 ++++++----
 2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/serve.c b/serve.c
index 2b07d922b3..2ce513cf2d 100644
--- a/serve.c
+++ b/serve.c
@@ -97,9 +97,9 @@ static int object_info_advertise(struct repository *r, struct strbuf *value)
 		/* disabled by default */
 		advertise_object_info = 0;
 	}
-	/* Currently only size is supported */
+	/* Currently only size and type are supported */
 	if (value && advertise_object_info)
-		strbuf_addstr(value, "size");
+		strbuf_addstr(value, "size type");
 	return advertise_object_info;
 }
 
diff --git a/t/t1017-cat-file-remote-object-info.sh b/t/t1017-cat-file-remote-object-info.sh
index 116862f9d0..175f778cc9 100755
--- a/t/t1017-cat-file-remote-object-info.sh
+++ b/t/t1017-cat-file-remote-object-info.sh
@@ -7,6 +7,7 @@ test_description='git cat-file --batch-command with remote-object-info command'
 
 hello_content="Hello World"
 hello_size=$(strlen "$hello_content")
+hello_type="blob"
 hello_oid=$(echo_without_newline "$hello_content" | git hash-object --stdin)
 hello_short_oid=$(git rev-parse --short "$hello_oid")
 
@@ -19,6 +20,7 @@ unstored_oid=$(echo_without_newline "$unstored_content" | git hash-object --stdi
 # file name is hello, which is 5 characters
 # a space is 1 character and a null is 1 character
 tree_size=$(($(test_oid rawsz) + 13))
+tree_type="tree"
 
 commit_message="Initial commit"
 
@@ -31,6 +33,7 @@ commit_message="Initial commit"
 # An easier way to calculate is: 1. use `git cat-file commit <commit hash> | wc -c`,
 # to get 177, 2. then deduct 40 hex characters to get 137
 commit_size=$(($(test_oid hexsz) + 137))
+commit_type="commit"
 
 tag_header_without_oid="type blob
 tag hellotag
@@ -44,6 +47,7 @@ $tag_description"
 
 tag_oid=$(echo_without_newline "$tag_content" | git hash-object -t tag --stdin -w)
 tag_size=$(strlen "$tag_content")
+tag_type="tag"
 
 set_transport_variables () {
 	hello_oid=$(echo_without_newline "$hello_content" | git hash-object --stdin)
@@ -256,14 +260,12 @@ test_expect_success 'remote-object-info does not die on missing oid like info' '
 	)
 '
 
-# This tests depends on %(objecttype) not being supported yet, once supported
-# it needs to be updated.
-test_expect_success 'unsupported placeholder on remote returns empty string' '
+test_expect_success 'objecttype is supported by remote-object-info' '
 	(
 		set_transport_variables "$daemon_parent" &&
 		cd "$daemon_parent/daemon_client_empty" &&
 
-		echo "" >expect &&
+		echo $hello_type >expect &&
 		git cat-file --batch-command="%(objecttype)" >actual <<-EOF &&
 		remote-object-info "$GIT_DAEMON_URL/parent" $hello_oid
 		EOF
-- 
2.54.0
Previous: Pablo SabaterNext: Chandra Pratap
Message 16 of 112 in “cat-file: extend remote-object-info to support %(objecttype)”
  1. 0/5 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Jul 25, 2026
  2. 1/5 protocol-caps: add type support to object-infoPablo Sabater, Jul 25, 2026
  3. Chandra PratapJul 29, 2026
  4. Pablo SabaterJul 29, 2026
  5. Junio C HamanoJul 29, 2026
  6. Karthik NayakJul 29, 2026
  7. 2/5 fetch-object-info: parse type from server responsePablo Sabater, Jul 25, 2026
  8. Chandra PratapJul 29, 2026
  9. Pablo SabaterJul 29, 2026
  10. Chandra PratapJul 29, 2026
  11. Karthik NayakJul 29, 2026
  12. Karthik NayakJul 29, 2026
  13. 3/5 fetch-object-info: request all supported options dynamicallyPablo Sabater, Jul 25, 2026
  14. Chandra PratapJul 29, 2026
  15. Pablo SabaterJul 29, 2026
  16. 4/5 serve: advertise type capabilityPablo Sabater, Jul 25, 2026
  17. Chandra PratapJul 29, 2026
  18. Pablo SabaterJul 29, 2026
  19. 5/5 cat-file: unify default formatPablo Sabater, Jul 25, 2026
  20. Chandra PratapJul 29, 2026
  21. Pablo SabaterJul 29, 2026
  22. Chandra PratapJul 29, 2026
  23. Pablo SabaterJul 29, 2026
  24. 0/6 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Jul 31, 2026
  25. 1/6 fetch-object-info: request all supported options dynamicallyPablo Sabater, Jul 31, 2026
  26. Junio C HamanoJul 31, 2026
  27. 2/6 t5701: use the test_file_size() helperPablo Sabater, Jul 31, 2026
  28. Junio C HamanoAug 1, 2026
  29. Pablo SabaterAug 1, 2026
  30. 3/6 protocol-caps: add type support to object-infoPablo Sabater, Jul 31, 2026
  31. Junio C HamanoAug 1, 2026
  32. 4/6 fetch-object-info: parse type from server responsePablo Sabater, Jul 31, 2026
  33. Junio C HamanoAug 1, 2026
  34. Junio C HamanoAug 1, 2026
  35. Pablo SabaterAug 1, 2026
  36. Jeff KingAug 1, 2026
  37. Jeff KingAug 1, 2026
  38. Junio C HamanoAug 2, 2026
  39. Pablo SabaterAug 2, 2026
  40. Jeff KingAug 2, 2026
  41. Junio C HamanoAug 2, 2026
  42. Junio C HamanoAug 2, 2026
  43. Jeff KingAug 2, 2026
  44. Junio C HamanoAug 2, 2026
  45. Pablo SabaterAug 1, 2026
  46. 5/6 serve: advertise type capabilityPablo Sabater, Jul 31, 2026
  47. Chandra PratapAug 1, 2026
  48. Pablo SabaterAug 1, 2026
  49. 6/6 cat-file: unify default formatPablo Sabater, Jul 31, 2026
  50. 0/8 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Aug 3, 2026
  51. 1/8 t5701: use test_file_size() to get the size of a filePablo Sabater, Aug 3, 2026
  52. Junio C HamanoAug 3, 2026
  53. Pablo SabaterAug 3, 2026
  54. 2/8 fetch-object-info: detect truncated server responsesPablo Sabater, Aug 3, 2026
  55. Junio C HamanoAug 3, 2026
  56. Pablo SabaterAug 3, 2026
  57. 3/8 fetch-object-info: pass arguments directly instead of a structPablo Sabater, Aug 3, 2026
  58. Junio C HamanoAug 3, 2026
  59. Karthik NayakAug 4, 2026
  60. Pablo SabaterAug 4, 2026
  61. 4/8 fetch-object-info: use dedicated struct for the resultsPablo Sabater, Aug 3, 2026
  62. Junio C HamanoAug 3, 2026
  63. Pablo SabaterAug 3, 2026
  64. 5/8 protocol-caps: add type support to object-infoPablo Sabater, Aug 3, 2026
  65. 6/8 fetch-object-info: parse type from server responsePablo Sabater, Aug 3, 2026
  66. 7/8 serve: advertise type capabilityPablo Sabater, Aug 3, 2026
  67. 8/8 cat-file: unify default formatPablo Sabater, Aug 3, 2026
  68. 0/9 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Aug 4, 2026
  69. 1/9 t5701: use test_file_size() to get the size of a filePablo Sabater, Aug 4, 2026
  70. 2/9 fetch-object-info: detect malformed server responsesPablo Sabater, Aug 4, 2026
  71. Junio C HamanoAug 4, 2026
  72. 3/9 fetch-object-info: pass arguments directly instead of a structPablo Sabater, Aug 4, 2026
  73. Junio C HamanoAug 4, 2026
  74. Karthik NayakAug 6, 2026
  75. 5/9 fetch-object-info: die() on the remaining error pathPablo Sabater, Aug 4, 2026
  76. 4/9 fetch-object-info: use dedicated struct for the resultsPablo Sabater, Aug 4, 2026
  77. Junio C HamanoAug 4, 2026
  78. Pablo SabaterAug 4, 2026
  79. 6/9 protocol-caps: add type support to object-infoPablo Sabater, Aug 4, 2026
  80. 7/9 fetch-object-info: parse type from server responsePablo Sabater, Aug 4, 2026
  81. 8/9 serve: advertise type capabilityPablo Sabater, Aug 4, 2026
  82. 9/9 cat-file: unify default formatPablo Sabater, Aug 4, 2026
  83. Jeff KingAug 6, 2026
  84. Pablo SabaterAug 7, 2026
  85. Jeff KingAug 7, 2026
  86. 00/10 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Aug 7, 2026
  87. 01/10 t5701: use test_file_size() to get the size of a filePablo Sabater, Aug 7, 2026
  88. 02/10 fetch-object-info: detect malformed server responsesPablo Sabater, Aug 7, 2026
  89. 03/10 fetch-object-info: pass arguments directly instead of a structPablo Sabater, Aug 7, 2026
  90. 04/10 fetch-object-info: use dedicated struct for the resultsPablo Sabater, Aug 7, 2026
  91. 05/10 fetch-object-info: die() on the remaining error pathPablo Sabater, Aug 7, 2026
  92. 06/10 transport: drop remote object-info fields from transport structPablo Sabater, Aug 7, 2026
  93. 07/10 protocol-caps: add type support to object-infoPablo Sabater, Aug 7, 2026
  94. 08/10 fetch-object-info: parse type from server responsePablo Sabater, Aug 7, 2026
  95. 09/10 serve: advertise type capabilityPablo Sabater, Aug 7, 2026
  96. 10/10 cat-file: unify default formatPablo Sabater, Aug 7, 2026
  97. Pablo SabaterAug 7, 2026
  98. 00/10 cat-file: extend remote-object-info to support %(objecttype)Pablo Sabater, Aug 8, 2026
  99. 01/10 t5701: use test_file_size() to get the size of a filePablo Sabater, Aug 8, 2026
  100. 02/10 fetch-object-info: detect malformed server responsesPablo Sabater, Aug 8, 2026
  101. 03/10 fetch-object-info: pass arguments directly instead of a structPablo Sabater, Aug 8, 2026
  102. 04/10 fetch-object-info: use dedicated struct for the resultsPablo Sabater, Aug 8, 2026
  103. 05/10 fetch-object-info: die() on the remaining error pathPablo Sabater, Aug 8, 2026
  104. 06/10 transport: drop remote object-info fields from transport structPablo Sabater, Aug 8, 2026
  105. Junio C HamanoAug 8, 2026
  106. Chandra PratapAug 8, 2026
  107. Karthik NayakAug 11, 2026
  108. 07/10 protocol-caps: add type support to object-infoPablo Sabater, Aug 8, 2026
  109. 08/10 fetch-object-info: parse type from server responsePablo Sabater, Aug 8, 2026
  110. 09/10 serve: advertise type capabilityPablo Sabater, Aug 8, 2026
  111. 10/10 cat-file: unify default formatPablo Sabater, Aug 8, 2026
  112. Jeff KingAug 8, 2026

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