galera: syncing SST scripts code with the following versions

scripts/wsrep_sst_common.sh

@@ -152,7 +152,6 @@ WSREP_SST_OPT_DATA=""
 WSREP_SST_OPT_AUTH="${WSREP_SST_OPT_AUTH:-}"
 WSREP_SST_OPT_USER="${WSREP_SST_OPT_USER:-}"
 WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_PSWD:-}"
-WSREP_SST_OPT_REMOTE_AUTH="${WSREP_SST_OPT_REMOTE_AUTH:-}"
 WSREP_SST_OPT_DEFAULT=""
 WSREP_SST_OPT_DEFAULTS=""
 WSREP_SST_OPT_EXTRA_DEFAULT=""
@@ -1008,11 +1007,6 @@ in_config()
     echo $found
 }
 
-wsrep_auth_not_set()
-{
-    [ -z "$WSREP_SST_OPT_AUTH" ]
-}
-
 # Get rid of incorrect values resulting from substitution
 # in programs external to the script:
 if [ "$WSREP_SST_OPT_USER" = '(null)' ]; then
@@ -1028,12 +1022,12 @@ fi
 # Let's read the value of the authentication string from the
 # configuration file so that it does not go to the command line
 # and does not appear in the ps output:
-if wsrep_auth_not_set; then
+if [ -z "$WSREP_SST_OPT_AUTH" ]; then
     WSREP_SST_OPT_AUTH=$(parse_cnf 'sst' 'wsrep-sst-auth')
 fi
 
 # Splitting WSREP_SST_OPT_AUTH as "user:password" pair:
-if ! wsrep_auth_not_set; then
+if [ -n "$WSREP_SST_OPT_AUTH" ]; then
     # Extract username as shortest prefix up to first ':' character:
     WSREP_SST_OPT_AUTH_USER="${WSREP_SST_OPT_AUTH%%:*}"
     if [ -z "$WSREP_SST_OPT_USER" ]; then
@@ -1057,19 +1051,20 @@ if ! wsrep_auth_not_set; then
     fi
 fi
 
-readonly WSREP_SST_OPT_USER
-readonly WSREP_SST_OPT_PSWD
-readonly WSREP_SST_OPT_AUTH
-
+WSREP_SST_OPT_REMOTE_AUTH="${WSREP_SST_OPT_REMOTE_AUTH:-}"
+WSREP_SST_OPT_REMOTE_USER=
+WSREP_SST_OPT_REMOTE_PSWD=
 if [ -n "$WSREP_SST_OPT_REMOTE_AUTH" ]; then
     # Split auth string at the last ':'
-    readonly WSREP_SST_OPT_REMOTE_USER="${WSREP_SST_OPT_REMOTE_AUTH%%:*}"
-    readonly WSREP_SST_OPT_REMOTE_PSWD="${WSREP_SST_OPT_REMOTE_AUTH#*:}"
-else
-    readonly WSREP_SST_OPT_REMOTE_USER=
-    readonly WSREP_SST_OPT_REMOTE_PSWD=
+    WSREP_SST_OPT_REMOTE_USER="${WSREP_SST_OPT_REMOTE_AUTH%%:*}"
+    WSREP_SST_OPT_REMOTE_PSWD="${WSREP_SST_OPT_REMOTE_AUTH#*:}"
 fi
 
+readonly WSREP_SST_OPT_USER
+readonly WSREP_SST_OPT_PSWD
+readonly WSREP_SST_OPT_AUTH
+readonly WSREP_SST_OPT_REMOTE_USER
+readonly WSREP_SST_OPT_REMOTE_PSWD
 readonly WSREP_SST_OPT_REMOTE_AUTH
 
 if [ -n "$WSREP_SST_OPT_DATA" ]; then

scripts/wsrep_sst_mariabackup.sh

@@ -1100,15 +1100,13 @@ if [ "$WSREP_SST_OPT_ROLE" = 'donor' ]; then
 
         wsrep_log_info "Using '$itmpdir' as mariadb-backup working directory"
 
-        usrst=0
         if [ -n "$WSREP_SST_OPT_USER" ]; then
            INNOEXTRA="$INNOEXTRA --user='$WSREP_SST_OPT_USER'"
-           usrst=1
         fi
 
         if [ -n "$WSREP_SST_OPT_PSWD" ]; then
             export MYSQL_PWD="$WSREP_SST_OPT_PSWD"
-        elif [ $usrst -eq 1 ]; then
+        elif [ -n "$WSREP_SST_OPT_USER" ]; then
             # Empty password, used for testing, debugging etc.
             unset MYSQL_PWD
         fi

scripts/wsrep_sst_mysqldump.sh

@@ -40,17 +40,15 @@ then
 fi
 
 # Check client version
-if ! $MYSQL_CLIENT --version | grep -q -E 'Distrib 10\.[1-9]'; then
+if ! $MYSQL_CLIENT --version | grep -q -E '(Distrib 10\.[1-9])|( from 1[1-9]\.)'; then
     $MYSQL_CLIENT --version >&2
     wsrep_log_error "this operation requires MySQL client version 10.1 or newer"
     exit $EINVAL
 fi
 
 AUTH=""
-usrst=0
 if [ -n "$WSREP_SST_OPT_USER" ]; then
     AUTH="-u$WSREP_SST_OPT_USER"
-    usrst=1
 fi
 
 # Refs https://github.com/codership/mysql-wsrep/issues/141
@@ -64,7 +62,7 @@ fi
 # word, it is arguably more secure than passing password on the command line.
 if [ -n "$WSREP_SST_OPT_PSWD" ]; then
     export MYSQL_PWD="$WSREP_SST_OPT_PSWD"
-elif [ $usrst -eq 1 ]; then
+elif [ -n "$WSREP_SST_OPT_USER" ]; then
     # Empty password, used for testing, debugging etc.
     unset MYSQL_PWD
 fi