pg_upgrade i18n: Fix "%s server/cluster" wording

The original wording was impossible to translate correctly.

Discussion: https://postgr.es/m/20170523002827.lzc2jkzh2gubclqb@alvherre.pgsql

src/bin/pg_upgrade/check.c

@@ -770,8 +770,12 @@ check_for_prepared_transactions(ClusterInfo *cluster)
 							"FROM pg_catalog.pg_prepared_xacts");
 
 	if (PQntuples(res) != 0)
-		pg_fatal("The %s cluster contains prepared transactions\n",
-				 CLUSTER_NAME(cluster));
+	{
+		if (cluster == &old_cluster)
+			pg_fatal("The source cluster contains prepared transactions\n");
+		else
+			pg_fatal("The target cluster contains prepared transactions\n");
+	}
 
 	PQclear(res);
 
@@ -1082,8 +1086,12 @@ check_for_pg_role_prefix(ClusterInfo *cluster)
 							"WHERE rolname ~ '^pg_'");
 
 	if (PQntuples(res) != 0)
-		pg_fatal("The %s cluster contains roles starting with 'pg_'\n",
-				 CLUSTER_NAME(cluster));
+	{
+		if (cluster == &old_cluster)
+			pg_fatal("The source cluster contains roles starting with 'pg_'\n");
+		else
+			pg_fatal("The target cluster contains roles starting with 'pg_'\n");
+	}
 
 	PQclear(res);
 

src/bin/pg_upgrade/controldata.c

@@ -474,9 +474,12 @@ get_control_data(ClusterInfo *cluster, bool live_check)
 		 cluster->controldata.ctrl_ver >= LARGE_OBJECT_SIZE_PG_CONTROL_VER) ||
 		!got_date_is_int || !got_data_checksum_version)
 	{
-		pg_log(PG_REPORT,
-			   "The %s cluster lacks some required control information:\n",
-			   CLUSTER_NAME(cluster));
+		if (cluster == &old_cluster)
+			pg_log(PG_REPORT,
+				   "The source cluster lacks some required control information:\n");
+		else
+			pg_log(PG_REPORT,
+				   "The target cluster lacks some required control information:\n");
 
 		if (!got_xid)
 			pg_log(PG_REPORT, "  checkpoint next XID\n");

src/bin/pg_upgrade/info.c

@@ -320,7 +320,11 @@ get_db_and_rel_infos(ClusterInfo *cluster)
 	for (dbnum = 0; dbnum < cluster->dbarr.ndbs; dbnum++)
 		get_rel_infos(cluster, &cluster->dbarr.dbs[dbnum]);
 
-	pg_log(PG_VERBOSE, "\n%s databases:\n", CLUSTER_NAME(cluster));
+	if (cluster == &old_cluster)
+		pg_log(PG_VERBOSE, "\nsource databases:\n");
+	else
+		pg_log(PG_VERBOSE, "\ntarget databases:\n");
+
 	if (log_opts.verbose)
 		print_db_infos(&cluster->dbarr);
 }

src/bin/pg_upgrade/option.c

@@ -405,8 +405,10 @@ adjust_data_dir(ClusterInfo *cluster)
 
 	/* Must be a configuration directory, so find the real data directory. */
 
-	prep_status("Finding the real data directory for the %s cluster",
-				CLUSTER_NAME(cluster));
+	if (cluster == &old_cluster)
+		prep_status("Finding the real data directory for the source cluster");
+	else
+		prep_status("Finding the real data directory for the target cluster");
 
 	/*
 	 * We don't have a data directory yet, so we can't check the PG version,

src/bin/pg_upgrade/pg_upgrade.h

@@ -94,8 +94,6 @@ extern char *output_files[];
 #define ECHO_BLANK	"."
 #endif
 
-#define CLUSTER_NAME(cluster)	((cluster) == &old_cluster ? "old" : \
-								 (cluster) == &new_cluster ? "new" : "none")
 
 /* OID system catalog preservation added during PG 9.0 development */
 #define TABLE_SPACE_SUBDIRS_CAT_VER 201001111

src/bin/pg_upgrade/server.c

@@ -285,9 +285,14 @@ start_postmaster(ClusterInfo *cluster, bool throw_error)
 			   PQerrorMessage(conn));
 		if (conn)
 			PQfinish(conn);
-		pg_fatal("could not connect to %s postmaster started with the command:\n"
-				 "%s\n",
-				 CLUSTER_NAME(cluster), cmd);
+		if (cluster == &old_cluster)
+			pg_fatal("could not connect to source postmaster started with the command:\n"
+					 "%s\n",
+					 cmd);
+		else
+			pg_fatal("could not connect to target postmaster started with the command:\n"
+					 "%s\n",
+					 cmd);
 	}
 	PQfinish(conn);
 
@@ -297,8 +302,12 @@ start_postmaster(ClusterInfo *cluster, bool throw_error)
 	 * running.
 	 */
 	if (!pg_ctl_return)
-		pg_fatal("pg_ctl failed to start the %s server, or connection failed\n",
-				 CLUSTER_NAME(cluster));
+	{
+		if (cluster == &old_cluster)
+			pg_fatal("pg_ctl failed to start the source server, or connection failed\n");
+		else
+			pg_fatal("pg_ctl failed to start the target server, or connection failed\n");
+	}
 
 	return true;
 }