From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 24 Jul 2026 21:46:47 +0000 (-0700)
Subject: Merge branch 'ps/cat-file-remote-object-info' into next
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e436a42272e5f75bb9ac8df1355c4593652372fe;p=thirdparty%2Fgit.git

Merge branch 'ps/cat-file-remote-object-info' into next

The 'remote-object-info' command has been added to 'git cat-file
--batch-command', allowing clients to request object metadata
(currently size) from a remote server via protocol v2 without
downloading the entire object.  Format placeholders are dynamically
filtered on the client based on server-advertised capabilities,
returning empty strings for inapplicable or unsupported fields.

* ps/cat-file-remote-object-info:
  cat-file: make remote-object-info allow-list adapt to the server
  cat-file: add remote-object-info to batch-command
  transport: add client support for object-info
  serve: advertise object-info feature
  protocol-caps: check object existence regardless of the attributes requested
  fetch-pack: move fetch initialization
  connect: make write_fetch_command_and_capabilities() more generic
  fetch-pack: move write_fetch_command_and_capabilities() to connect.c
  fetch-pack: use unsigned int for hash_algo variable
  fetch-pack: drop the static advertise_sid variable
  t1006: extract helper functions into new 'lib-cat-file.sh'
  cat-file: declare loop counter inside for()
  transport-helper: fix memory leak of helper on disconnect
---

e436a42272e5f75bb9ac8df1355c4593652372fe
diff --cc object-file.c
index 0567b9d5f1,121416c37c..6f48e5e418
--- a/object-file.c
+++ b/object-file.c
@@@ -1715,29 -1695,16 +1715,39 @@@ int odb_transaction_files_begin(struct 
  	transaction->base.source = source;
  	transaction->base.commit = odb_transaction_files_commit;
  	transaction->base.write_object_stream = odb_transaction_files_write_object_stream;
 +	transaction->base.env = odb_transaction_files_env;
 +
 +	transaction->prefix = "bulk-fsync";
 +	if (flags & ODB_TRANSACTION_RECEIVE) {
 +		/*
 +		 * ODB transactions for git-receive-pack(1) eagerly create a
 +		 * temporary directory and use a different temporary directory
 +		 * prefix.
 +		 *
 +		 * NEEDSWORK: This transaction flag is only used by the "files"
 +		 * backend to special case temporary directory set up and
 +		 * handling. Ideally transaction users should not have to care
 +		 * though. To avoid this, we could eagerly create the temporary
 +		 * directory and use the same prefix name for all transactions.
 +		 */
 +		transaction->prefix = "incoming";
 +		if (odb_transaction_files_prepare(&transaction->base)) {
 +			free(transaction);
 +			return -1;
 +		}
 +	}
 +
 +	*out = &transaction->base;
  
 -	return &transaction->base;
 +	return 0;
  }
+ 
+ void free_object_info_contents(struct object_info *object_info)
+ {
+ 	if (!object_info)
+ 		return;
+ 	free(object_info->typep);
+ 	free(object_info->sizep);
+ 	free(object_info->disk_sizep);
+ 	free(object_info->delta_base_oid);
+ }