config: pass repo to git_config_get_split_index()

Refactor `git_config_get_split_index()` to accept a `struct repository`
such that we can get rid of the implicit dependency on `the_repository`.
Rename the function accordingly.

Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pks-t

builtin/update-index.c

@@ -1156,7 +1156,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 	end_odb_transaction();
 
 	if (split_index > 0) {
-		if (git_config_get_split_index() == 0)
+		if (repo_config_get_split_index(the_repository) == 0)
 			warning(_("core.splitIndex is set to false; "
 				  "remove or change it, if you really want to "
 				  "enable split index"));
@@ -1165,7 +1165,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 		else
 			add_split_index(the_repository->index);
 	} else if (!split_index) {
-		if (git_config_get_split_index() == 1)
+		if (repo_config_get_split_index(the_repository) == 1)
 			warning(_("core.splitIndex is set to true; "
 				  "remove or change it, if you really want to "
 				  "disable split index"));

config.c

@@ -2801,11 +2801,11 @@ int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestam
 	return -1; /* thing exists but cannot be parsed */
 }
 
-int git_config_get_split_index(void)
+int repo_config_get_split_index(struct repository *r)
 {
 	int val;
 
-	if (!git_config_get_maybe_bool("core.splitindex", &val))
+	if (!repo_config_get_maybe_bool(r, "core.splitindex", &val))
 		return val;
 
 	return -1; /* default value */

config.h

@@ -711,7 +711,7 @@ int git_config_get_maybe_bool(const char *key, int *dest);
 int git_config_get_pathname(const char *key, char **dest);
 
 int repo_config_get_index_threads(struct repository *r, int *dest);
-int git_config_get_split_index(void);
+int repo_config_get_split_index(struct repository *r);
 int git_config_get_max_percent_split_change(void);
 
 /* This dies if the configured or default date is in the future */

read-cache.c

@@ -1945,7 +1945,7 @@ static void tweak_untracked_cache(struct index_state *istate)
 
 static void tweak_split_index(struct index_state *istate)
 {
-	switch (git_config_get_split_index()) {
+	switch (repo_config_get_split_index(the_repository)) {
 	case -1: /* unset: do nothing */
 		break;
 	case 0: /* false */