standby clone: improve Barman source server check

Use "remote_command()" to execute the remote psql command, and
provide the -X option to psql to ensure it doesn't read ~/.psqlrc.

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for repmgr 5.2.
+# Generated by GNU Autoconf 2.69 for repmgr 5.2.0.
 #
 # Report bugs to <repmgr@googlegroups.com>.
 #
@@ -582,8 +582,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='repmgr'
 PACKAGE_TARNAME='repmgr'
-PACKAGE_VERSION='5.2'
-PACKAGE_STRING='repmgr 5.2'
+PACKAGE_VERSION='5.2.0'
+PACKAGE_STRING='repmgr 5.2.0'
 PACKAGE_BUGREPORT='repmgr@googlegroups.com'
 PACKAGE_URL='https://repmgr.org/'
 
@@ -1181,7 +1181,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures repmgr 5.2 to adapt to many kinds of systems.
+\`configure' configures repmgr 5.2.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1242,7 +1242,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of repmgr 5.2:";;
+     short | recursive ) echo "Configuration of repmgr 5.2.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1316,7 +1316,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-repmgr configure 5.2
+repmgr configure 5.2.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1335,7 +1335,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by repmgr $as_me 5.2, which was
+It was created by repmgr $as_me 5.2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -1824,7 +1824,7 @@ if test "$major_version_num" -lt '10'; then
     version_num_int=$(echo "$version_num"|
                     $SED -e 's/^\([0-9]*\)\.\([0-9]*\)$/\1\2/')
 
-    if test "$version_num_int" -lt '93'; then
+    if test "$version_num_int" -lt '94'; then
         as_fn_error $? "repmgr is not compatible with detected PostgreSQL version: $version_num" "$LINENO" 5
     fi
 else
@@ -2487,7 +2487,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by repmgr $as_me 5.2, which was
+This file was extended by repmgr $as_me 5.2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -2550,7 +2550,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-repmgr config.status 5.2
+repmgr config.status 5.2.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.in

@@ -1,4 +1,4 @@
-AC_INIT([repmgr], [5.2], [repmgr@googlegroups.com], [repmgr], [https://repmgr.org/])
+AC_INIT([repmgr], [5.2.0], [repmgr@googlegroups.com], [repmgr], [https://repmgr.org/])
 
 AC_COPYRIGHT([Copyright (c) 2010-2020, 2ndQuadrant Ltd.])
 
@@ -32,7 +32,7 @@ if test "$major_version_num" -lt '10'; then
     version_num_int=$(echo "$version_num"|
                     $SED -e 's/^\([[0-9]]*\)\.\([[0-9]]*\)$/\1\2/')
 
-    if test "$version_num_int" -lt '93'; then
+    if test "$version_num_int" -lt '94'; then
         AC_MSG_ERROR([repmgr is not compatible with detected PostgreSQL version: $version_num])
     fi
 else

doc/appendix-release-notes.xml

@@ -18,14 +18,14 @@
 <!-- remember to update the release date in ../repmgr_version.h.in -->
 
   <sect1 id="release-5.2.0">
-    <title>Release 5.2.0</title>
-    <para><emphasis>??? ?? ???, 2020</emphasis></para>
+    <title id="release-current">Release 5.2.0</title>
+    <para><emphasis>??? ?? October, 2020</emphasis></para>
 
     <para>
       &repmgr; 5.2.0 is a major release.
     </para>
     <para>
-      This release provides support for <ulink url="https://www.postgresql.org/docs/13/release-13.htmll">PostgreSQL 13</ulink>, released in September 2020.
+      This release provides support for <ulink url="https://www.postgresql.org/docs/13/release-13.html">PostgreSQL 13</ulink>, released in September 2020.
     </para>
     <para>
       This release removes support for PostgreSQL 9.3, which was
@@ -220,7 +220,7 @@
   </sect1>
 
   <sect1 id="release-5.1.0">
-    <title id="release-current">Release 5.1.0</title>
+    <title>Release 5.1.0</title>
     <para><emphasis>Mon 13 April, 2020</emphasis></para>
 
     <para>

doc/install-requirements.xml

@@ -133,10 +133,10 @@
               &repmgr; 5.1
             </entry>
             <entry>
-              YES
+              NO
             </entry>
             <entry>
-              <link linkend="release-5.1.0">5.1</link> (2020-04-13)
+              <link linkend="release-5.1.0">5.1.0</link> (2020-04-13)
             </entry>
             <entry>
               9.3, 9.4, 9.5, 9.6, 10, 11, 12

repmgr-action-standby.c

@@ -5962,19 +5962,22 @@ check_source_server_via_barman()
 
 	initPQExpBuffer(&command_output);
 	maxlen_snprintf(buf,
-					"ssh %s \"psql -Aqt \\\"%s\\\" -c \\\""
+					"psql -AqtX -d \\\"%s\\\" -c \\\""
 					" SELECT conninfo"
 					" FROM repmgr.nodes"
 					" WHERE %s"
 					" AND active IS TRUE"
-					"\\\"\"",
-					config_file_options.barman_host,
+					"\\\"",
 					repmgr_conninfo_buf.data,
 					where_condition);
 
 	termPQExpBuffer(&repmgr_conninfo_buf);
 
-	command_success = local_command(buf, &command_output);
+	command_success = remote_command(config_file_options.barman_host,
+									 runtime_options.remote_user,
+									 buf,
+									 config_file_options.ssh_options,
+									 &command_output);
 
 	if (command_success == false)
 	{

repmgr_version.h.in

@@ -1,5 +1,5 @@
 #define REPMGR_VERSION_DATE ""
-#define REPMGR_VERSION "5.2dev"
+#define REPMGR_VERSION "5.2.0"
 #define REPMGR_VERSION_NUM 50200
 #define REPMGR_RELEASE_DATE "2020-XX-XX"
 #define PG_ACTUAL_VERSION_NUM