Subject: [PATCH 08/11] config-batch: pass prefix through commands

From: "Derrick Stolee via GitGitGadget" <[email-masked]>
Date: Wed, 04 Feb 2026 14:20:00 +0000

From: Derrick Stolee <[email-masked]>

The 'help' and 'get' commands of 'git config-batch' have not needed the
prefix parameter from the builtin entrance point, but an upcoming
command will need it in order to identify the location of the
appropriate config file. Pass it through the appropriate functions and
function pointers.

Signed-off-by: Derrick Stolee <[email-masked]>
---
 builtin/config-batch.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/builtin/config-batch.c b/builtin/config-batch.c
index 2c48c4ea37..9829b16c6f 100644
--- a/builtin/config-batch.c
+++ b/builtin/config-batch.c
@@ -67,9 +67,11 @@ static int command_parse_error(const char *command)
  * Return 0 on success.
  */
 typedef int (*command_fn)(struct repository *repo,
+			  const char *prefix,
 			  char *data, size_t data_len);
 
 static int unknown_command(struct repository *repo UNUSED,
+			   const char *prefix UNUSED,
 			   char *data UNUSED, size_t data_len UNUSED)
 {
 	return emit_response(UNKNOWN_COMMAND, NULL);
@@ -176,6 +178,7 @@ static size_t parse_token(char **data, size_t *data_len,
 }
 
 static int help_command_1(struct repository *repo,
+			  const char *prefix UNUSED,
 			  char *data, size_t data_len);
 
 enum value_match_mode {
@@ -292,6 +295,7 @@ static int parse_scope(const char *str, enum config_scope *scope)
  * [N*] indicates optional parameters that are not needed.
  */
 static int get_command_1(struct repository *repo,
+			 const char *prefix UNUSED,
 			 char *data,
 			 size_t data_len)
 {
@@ -402,6 +406,7 @@ static struct command commands[] = {
 #define COMMAND_COUNT ((size_t)(sizeof(commands) / sizeof(*commands)))
 
 static int help_command_1(struct repository *repo UNUSED,
+			  const char *prefix UNUSED,
 			  char *data UNUSED, size_t data_len UNUSED)
 {
 	struct strbuf fmt_str = STRBUF_INIT;
@@ -424,7 +429,8 @@ static int help_command_1(struct repository *repo UNUSED,
 	return 0;
 }
 
-static int process_command_nul(struct repository *repo)
+static int process_command_nul(struct repository *repo,
+			       const char *prefix)
 {
 	static struct strbuf line = STRBUF_INIT;
 	char *data, *command, *versionstr;
@@ -476,7 +482,7 @@ static int process_command_nul(struct repository *repo)
 		if (!commands[i].name[0] ||
 		    (!strcmp(command, commands[i].name) &&
 		     commands[i].version == version)) {
-			res = commands[i].fn(repo, data, data_len);
+			res = commands[i].fn(repo, prefix, data, data_len);
 			goto cleanup;
 		}
 	}
@@ -484,14 +490,15 @@ static int process_command_nul(struct repository *repo)
 	BUG(_("scanned to end of command list, including 'unknown_command'"));
 
 parse_error:
-	res = unknown_command(repo, NULL, 0);
+	res = unknown_command(repo, prefix, NULL, 0);
 
 cleanup:
 	strbuf_release(&line);
 	return res;
 }
 
-static int process_command_whitespace(struct repository *repo)
+static int process_command_whitespace(struct repository *repo,
+				      const char *prefix)
 {
 	static struct strbuf line = STRBUF_INIT;
 	struct string_list tokens = STRING_LIST_INIT_NODUP;
@@ -536,7 +543,7 @@ static int process_command_whitespace(struct repository *repo)
 		if (!commands[i].name[0] ||
 		    (!strcmp(command, commands[i].name) &&
 		     commands[i].version == version)) {
-			res = commands[i].fn(repo, data, data_len);
+			res = commands[i].fn(repo, prefix, data, data_len);
 			goto cleanup;
 		}
 	}
@@ -559,11 +566,12 @@ cleanup:
  *
  * Returns negative value on other catastrophic error.
  */
-static int process_command(struct repository *repo)
+static int process_command(struct repository *repo,
+			   const char *prefix)
 {
 	if (zformat)
-		return process_command_nul(repo);
-	return process_command_whitespace(repo);
+		return process_command_nul(repo, prefix);
+	return process_command_whitespace(repo, prefix);
 }
 
 int cmd_config_batch(int argc,
@@ -586,7 +594,7 @@ int cmd_config_batch(int argc,
 
 	repo_config(repo, git_default_config, NULL);
 
-	while (!(res = process_command(repo)));
+	while (!(res = process_command(repo, prefix)));
 
 	if (res == 1)
 		return 0;
-- 
gitgitgadget