second run: determin 'MYSQL_CREDENTIAL_ARGS' if not given.

flush_query_cache.sh

@@ -64,18 +64,47 @@ if [[ -f "$conf_file" ]]; then
    source "$conf_file"
 fi
 
-[[ -z "$mysql_credential_args" ]] && mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
+#[[ -z "$mysql_credential_args" ]] && mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
+
+if [[ -z "$mysql_credential_args" ]]; then
+
+   if [[ "$MYSQL_CUR_DISTRIBUTION" = "MariaDB" ]] && ([[ $MYSQL_MAJOR_VERSION -gt 10 ]] \
+         || ( [[ $MYSQL_MAJOR_VERSION -eq 10 ]] && [[ $MYSQL_MINOR_VERSION -gt 3 ]] )) ; then
+      if [[ -S "/tmp/mysql.sock" ]]; then
+         mysql_credential_args="-u root -S /tmp/mysql.sock"
+      elif [[ -S "/var/run/mysqld/mysqld.sock" ]]; then
+         mysql_credential_args="-u root -S /var/run/mysqld/mysqld.sock"
+      else
+         fatal "Parameter 'MYSQL_CREDENTIAL_ARGS' cannot be determined automated.
+
+              Use configuration file "$conf_file" to set
+              parameter manually."
+      fi
+   else
+      if [[ -f "/usr/local/mysql/sys-maint.cnf" ]] ; then
+         mysql_credential_args="--defaults-file=/usr/local/mysql/sys-maint.cnf"
+      elif [[ -f "/etc/mysql/debian.cnf" ]] ; then
+         mysql_credential_args="--defaults-file=/etc/mysql/debian.cnf"
+      else
+         fatal "Parameter 'MYSQL_CREDENTIAL_ARGS' cannot be determined automated.
+
+              Use configuration file "$conf_file" to set
+              parameter manually."
+      fi
+   fi
+
+fi
+
 
 
 if $LOGGING ;then
    echo -e "\n[ `date` ] Going to flush query cache.."
 fi
 
-if [ -n "$mysql_credential_args" ] ; then
-   $mysql $mysql_credential_args -N -s -e "FLUSH QUERY CACHE"
-else
-   $mysql -u$mysql_user -p$mysql_password -N -s -e "FLUSH QUERY CACHE"
-fi
+
+# Flush Query Cache
+#
+$mysql $mysql_credential_args -N -s -e "FLUSH QUERY CACHE"
 
 [[ $? -gt 0 ]] && echo -e "\t[ Error ]: Flushing query cache failed !!"