Fix shadowed declaration

Since b5934bfd6071 in postgresql.git the flag
`-Wshadow=compatible-local` is activated. This commit fixes any
duplicated declaration made in the same function.

References: HL-40

dbutils.c

@@ -1624,7 +1624,7 @@ get_ready_archive_files(PGconn *conn, const char *data_directory)
 
 	while ((arcdir_ent = readdir(arcdir)) != NULL)
 	{
-		struct stat statbuf;
+		struct stat local_statbuf;
 		char		file_path[MAXPGPATH + sizeof(arcdir_ent->d_name)];
 		int			basenamelen = 0;
 
@@ -1634,7 +1634,7 @@ get_ready_archive_files(PGconn *conn, const char *data_directory)
 				 arcdir_ent->d_name);
 
 		/* skip non-files */
-		if (stat(file_path, &statbuf) == 0 && !S_ISREG(statbuf.st_mode))
+		if (stat(file_path, &local_statbuf) == 0 && !S_ISREG(local_statbuf.st_mode))
 		{
 			continue;
 		}

repmgr-action-node.c

@@ -394,7 +394,6 @@ do_node_status(void)
 		if (node_info.inactive_replication_slots > 0)
 		{
 			KeyValueList inactive_replication_slots = {NULL, NULL};
-			KeyValueListCell *cell = NULL;
 
 			(void) get_inactive_replication_slots(conn, &inactive_replication_slots);
 
@@ -524,8 +523,6 @@ do_node_status(void)
 		if (node_info.inactive_replication_slots)
 		{
 			KeyValueList inactive_replication_slots = {NULL, NULL};
-			KeyValueListCell *cell = NULL;
-
 			(void) get_inactive_replication_slots(conn, &inactive_replication_slots);
 			for (cell = inactive_replication_slots.head; cell; cell = cell->next)
 			{
@@ -2546,6 +2543,7 @@ do_node_rejoin(void)
 	int			server_version_num = UNKNOWN_SERVER_VERSION_NUM;
 	bool		hide_standby_signal = false;
 
+	KeyValueListCell *cell = NULL;
 	PQExpBufferData command;
 	PQExpBufferData command_output;
 	PQExpBufferData follow_output;
@@ -2965,7 +2963,7 @@ do_node_rejoin(void)
 				else
 				{
 					while ((slotdir_ent = readdir(slotdir)) != NULL) {
-						struct stat statbuf;
+						struct stat local_statbuf;
 						PQExpBufferData slotdir_ent_path;
 
 						if (strcmp(slotdir_ent->d_name, ".") == 0 || strcmp(slotdir_ent->d_name, "..") == 0)
@@ -2978,7 +2976,7 @@ do_node_rejoin(void)
 										  slotdir_path.data,
 										  slotdir_ent->d_name);
 
-						if (stat(slotdir_ent_path.data, &statbuf) == 0 && !S_ISDIR(statbuf.st_mode))
+						if (stat(slotdir_ent_path.data, &local_statbuf) == 0 && !S_ISDIR(local_statbuf.st_mode))
 						{
 							termPQExpBuffer(&slotdir_ent_path);
 							continue;
@@ -3109,7 +3107,6 @@ do_node_rejoin(void)
 		else
 		{
 			KeyValueList inactive_replication_slots = {NULL, NULL};
-			KeyValueListCell *cell = NULL;
 			int inactive_count = 0;
 			PQExpBufferData slotinfo;
 

repmgr-action-standby.c

@@ -535,7 +535,7 @@ do_standby_clone(void)
 
 		if (external_config_files == true)
 		{
-			int			r;
+			r = 0;
 			PQExpBufferData msg;
 
 			initPQExpBuffer(&msg);
@@ -762,7 +762,7 @@ do_standby_clone(void)
 	if (mode == pg_basebackup && runtime_options.verify_backup == true)
 	{
 		PQExpBufferData command;
-		int r;
+		r = 0;
 		struct stat st;
 
 		initPQExpBuffer(&command);
@@ -3927,7 +3927,6 @@ do_standby_switchover(void)
 
 	if (PQserverVersion(local_conn) < 130000 && is_wal_replay_paused(local_conn, false) == true)
 	{
-		ReplInfo 	replication_info;
 		init_replication_info(&replication_info);
 
 		if (get_replication_info(local_conn, STANDBY, &replication_info) == false)
@@ -4784,7 +4783,7 @@ do_standby_switchover(void)
 	{
 		NodeInfoListCell *cell = NULL;
 		ItemList repmgrd_connection_errors = {NULL, NULL};
-		int i = 0;
+		i = 0;
 		int unreachable_node_count = 0;
 
 		get_all_node_records(local_conn, &all_nodes);
@@ -5099,8 +5098,6 @@ do_standby_switchover(void)
 		/* database server could not be contacted */
 		if (ping_res == PQPING_NO_RESPONSE || ping_res == PQPING_NO_ATTEMPT)
 		{
-			bool		command_success;
-
 			/*
 			 * remote server can't be contacted at protocol level - that
 			 * doesn't necessarily mean it's shut down, so we'll ask its
@@ -5678,7 +5675,7 @@ do_standby_switchover(void)
 		{
 			ItemList repmgrd_unpause_errors = {NULL, NULL};
 			NodeInfoListCell *cell = NULL;
-			int i = 0;
+			i = 0;
 			int error_node_count = 0;
 
 			for (cell = all_nodes.head; cell; cell = cell->next)
@@ -6513,12 +6510,12 @@ check_upstream_config(PGconn *conn, int server_version_num, t_node_info *upstrea
 	if (mode == pg_basebackup)
 	{
 
-		PGconn	  **connections;
-		int			i;
-		int			available_wal_senders;
-		int			min_replication_connections = 1;
-		int			possible_replication_connections = 0;
-		t_conninfo_param_list repl_conninfo = T_CONNINFO_PARAM_LIST_INITIALIZER;
+		PGconn		**connections;
+		int		available_wal_senders;
+		int		min_replication_connections			= 1;
+		int		possible_replication_connections	= 0;
+		i											= 0;
+		t_conninfo_param_list repl_conninfo			= T_CONNINFO_PARAM_LIST_INITIALIZER;
 
 
 		/*
@@ -8480,7 +8477,6 @@ check_sibling_nodes(NodeInfoList *sibling_nodes, SiblingNodeStats *sibling_nodes
 		if (sibling_nodes->node_count > 0)
 		{
 			PQExpBufferData nodes;
-			NodeInfoListCell *cell;
 
 			initPQExpBuffer(&nodes);
 

repmgrd-physical.c

@@ -1359,6 +1359,8 @@ monitor_streaming_standby(void)
 	MonitoringState local_monitoring_state = MS_NORMAL;
 	instr_time	local_degraded_monitoring_start;
 
+	bool upstream_check_result;
+	int degraded_monitoring_elapsed;
 	int last_known_upstream_node_id = UNKNOWN_NODE_ID;
 
 	log_debug("monitor_streaming_standby()");
@@ -1547,7 +1549,6 @@ monitor_streaming_standby(void)
 
 	while (true)
 	{
-		bool upstream_check_result;
 
 		log_verbose(LOG_DEBUG, "checking %s", upstream_node_info.conninfo);
 
@@ -1770,8 +1771,7 @@ monitor_streaming_standby(void)
 
 		if (monitoring_state == MS_DEGRADED)
 		{
-			int			degraded_monitoring_elapsed = calculate_elapsed(degraded_monitoring_start);
-			bool		upstream_check_result;
+			degraded_monitoring_elapsed = calculate_elapsed(degraded_monitoring_start);
 
 			if (config_file_options.degraded_monitoring_timeout > 0
 				&& degraded_monitoring_elapsed > config_file_options.degraded_monitoring_timeout)
@@ -1894,7 +1894,6 @@ monitor_streaming_standby(void)
 					 */
 					if (failover_state == FAILOVER_STATE_PROMOTION_FAILED)
 					{
-						int			degraded_monitoring_elapsed;
 						int			former_upstream_node_id = local_node_info.upstream_node_id;
 						NodeInfoList sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
 						PQExpBufferData event_details;
@@ -1953,7 +1952,7 @@ monitor_streaming_standby(void)
 
 					if (local_node_info.type == PRIMARY)
 					{
-						int			degraded_monitoring_elapsed = calculate_elapsed(degraded_monitoring_start);
+						degraded_monitoring_elapsed = calculate_elapsed(degraded_monitoring_start);
 
 						log_notice(_("resuming monitoring as primary node after %i seconds"),
 								   degraded_monitoring_elapsed);