Add configure option --with-bdr-only

Builds repmgr with only BDR functionality; other code is disabled
at critical points.

config.h.in

@@ -3,20 +3,3 @@
 /* Only build repmgr for BDR */
 #undef BDR_ONLY
 
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION

configfile.h

@@ -5,8 +5,8 @@
  *
  */
 
-#ifndef _REPMGR_CONFIG_H_
-#define _REPMGR_CONFIG_H_
+#ifndef _REPMGR_CONFIGFILE_H_
+#define _REPMGR_CONFIGFILE_H_
 
 #include <getopt_long.h>
 

repmgr-client.c

@@ -574,6 +574,7 @@ main(int argc, char **argv)
 
 	if (repmgr_node_type != NULL)
 	{
+#ifndef BDR_ONLY
 		if (strcasecmp(repmgr_node_type, "PRIMARY") == 0 || strcasecmp(repmgr_node_type, "MASTER") == 0 )
 		{
 			if (strcasecmp(repmgr_action, "REGISTER") == 0)
@@ -601,8 +602,10 @@ main(int argc, char **argv)
 			else if (strcasecmp(repmgr_action, "RESTORE-CONFIG") == 0)
 				action = STANDBY_RESTORE_CONFIG;
 		}
-
 		else if (strcasecmp(repmgr_node_type, "BDR") == 0)
+#else
+		if (strcasecmp(repmgr_node_type, "BDR") == 0)
+#endif
 		{
 			if (strcasecmp(repmgr_action, "REGISTER") == 0)
 				action = BDR_REGISTER;
@@ -776,8 +779,7 @@ main(int argc, char **argv)
 		 */
 		if (config_file_options.node_id == NODE_NOT_FOUND)
 		{
-			log_error(_("no node information was found - "
-						"please supply a configuration file"));
+			log_error(_("no node information was found - please supply a configuration file"));
 			exit(ERR_BAD_CONFIG);
 		}
 	}
@@ -856,6 +858,7 @@ main(int argc, char **argv)
 
 	switch (action)
 	{
+#ifndef BDR_ONLY
 		/* PRIMARY */
 		case PRIMARY_REGISTER:
 			do_primary_register();
@@ -889,7 +892,21 @@ main(int argc, char **argv)
 		case STANDBY_RESTORE_CONFIG:
 			do_standby_restore_config();
 			break;
+#else
+		/* we won't ever reach here, but stop the compiler complaining */
+		case PRIMARY_REGISTER:
+		case PRIMARY_UNREGISTER:
+		case STANDBY_CLONE:
+		case STANDBY_REGISTER:
+		case STANDBY_UNREGISTER:
+		case STANDBY_PROMOTE:
+		case STANDBY_FOLLOW:
+		case STANDBY_SWITCHOVER:
+		case STANDBY_ARCHIVE_CONFIG:
+		case STANDBY_RESTORE_CONFIG:
+			break;
 
+#endif
 		/* BDR */
 		case BDR_REGISTER:
 			do_bdr_register();
@@ -1242,12 +1259,14 @@ do_help(void)
 	}
 
 	printf(_("Usage:\n"));
+#ifndef BDR_ONLY
 	printf(_("	%s [OPTIONS] primary register\n"), progname());
 	printf(_("	%s [OPTIONS] primary unregister\n"), progname());
 	printf(_("	%s [OPTIONS] standby clone\n"), progname());
 	printf(_("	%s [OPTIONS] standby register\n"), progname());
 	printf(_("	%s [OPTIONS] standby unregister\n"), progname());
 	printf(_("	%s [OPTIONS] standby promote\n"), progname());
+#endif
 	printf(_("	%s [OPTIONS] bdr     register\n"), progname());
 	printf(_("	%s [OPTIONS] bdr     unregister\n"), progname());
 	printf(_("	%s [OPTIONS] cluster event\n"), progname());

repmgr.h

@@ -2,6 +2,12 @@
  * repmgr.h
  * Copyright (c) 2ndQuadrant, 2010-2017
  */
+
+#ifndef _REPMGR_CONFIG_H
+#define _REPMGR_CONFIG_H
+#include <config.h>
+#endif
+
 #ifndef _REPMGR_H_
 #define _REPMGR_H_
 
@@ -12,6 +18,7 @@
 #include <postgres_fe.h>
 #include <pqexpbuffer.h>
 
+
 #include "repmgr_version.h"
 #include "errcode.h"
 #include "strutil.h"

repmgrd-physical.c

@@ -35,14 +35,15 @@ typedef enum {
 } ElectionResult;
 
 
+static PGconn *upstream_conn = NULL;
+static PGconn *primary_conn = NULL;
 
+#ifndef BDR_ONLY
 static FailoverState failover_state = FAILOVER_STATE_UNKNOWN;
 
 static t_node_info upstream_node_info = T_NODE_INFO_INITIALIZER;
 static NodeInfoList standby_nodes = T_NODE_INFO_LIST_INITIALIZER;
 
-static PGconn *upstream_conn = NULL;
-static PGconn *primary_conn = NULL;
 
 static ElectionResult do_election(void);
 static const char *_print_voting_status(NodeVotingStatus voting_status);
@@ -62,12 +63,13 @@ void close_connections_physical();
 static bool do_primary_failover(void);
 static bool do_upstream_standby_failover(void);
 
-
+#endif
 
 
 void
 do_physical_node_check(void)
 {
+#ifndef BDR_ONLY
     /*
      * Check if node record is active - if not, and `failover_mode=automatic`, the node
      * won't be considered as a promotion candidate; this often happens when
@@ -128,6 +130,7 @@ do_physical_node_check(void)
 			exit(ERR_BAD_CONFIG);
 		}
 	}
+#endif
 }
 
 
@@ -136,6 +139,7 @@ do_physical_node_check(void)
 void
 monitor_streaming_primary(void)
 {
+#ifndef BDR_ONLY
 	NodeStatus	node_status = NODE_STATUS_UP;
 	instr_time	log_status_interval_start;
 	PQExpBufferData event_details;
@@ -330,12 +334,14 @@ monitor_streaming_primary(void)
 
 		sleep(config_file_options.monitor_interval_secs);
 	}
+#endif
 }
 
 
 void
 monitor_streaming_standby(void)
 {
+#ifndef BDR_ONLY
 	RecordStatus record_status;
 	NodeStatus	upstream_node_status = NODE_STATUS_UP;
 	instr_time	log_status_interval_start;
@@ -661,8 +667,10 @@ monitor_streaming_standby(void)
 		}
 		sleep(1);
 	}
+#endif
 }
 
+#ifndef BDR_ONLY
 static bool
 do_primary_failover(void)
 {
@@ -864,10 +872,12 @@ do_primary_failover(void)
 			return false;
 	}
 
+
 	/* should never reach here */
 	return false;
 }
 
+
 /*
  * do_upstream_standby_failover()
  *
@@ -1682,6 +1692,8 @@ reset_node_voting_status(void)
 }
 
 
+#endif /* #ifndef BDR_ONLY */
+
 void
 close_connections_physical()
 {
@@ -1701,3 +1713,4 @@ close_connections_physical()
 	}
 
 }
+

repmgrd.c

@@ -362,12 +362,18 @@ start_monitoring(void)
 	{
 		switch (local_node_info.type)
 		{
+#ifndef BDR_ONLY
 			case PRIMARY:
 				monitor_streaming_primary();
 				break;
 			case STANDBY:
 				monitor_streaming_standby();
 				break;
+#else
+			case PRIMARY:
+			case STANDBY:
+				return;
+#endif
 			case BDR:
 				monitor_bdr();
 				return;

repmgrd.h

@@ -3,6 +3,7 @@
  * Copyright (c) 2ndQuadrant, 2010-2017
  */
 
+
 #ifndef _REPMGRD_H_
 #define _REPMGRD_H_