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mariadb/scripts/wsrep_sst_common.sh
Julius Goryavsky d45f61c3ad wsrep_sst_common.sh: file mode changed back to 664
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# Copyright (C) 2012-2015 Codership Oy
# Copyright (C) 2017-2021 MariaDB
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston
# MA 02110-1335 USA.
# This is a common command line parser to be sourced by other SST scripts
set -u
WSREP_SST_OPT_BYPASS=0
WSREP_SST_OPT_BINLOG=""
WSREP_SST_OPT_BINLOG_INDEX=""
WSREP_SST_OPT_LOG_BASENAME=""
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_EXTRA_DEFAULT=""
WSREP_SST_OPT_SUFFIX_DEFAULT=""
WSREP_SST_OPT_SUFFIX_VALUE=""
WSREP_SST_OPT_MYSQLD=""
WSREP_SST_OPT_PORT=""
WSREP_SST_OPT_ADDR=""
WSREP_SST_OPT_ADDR_PORT=""
WSREP_SST_OPT_HOST=""
WSREP_SST_OPT_HOST_UNESCAPED=""
WSREP_SST_OPT_HOST_ESCAPED=""
INNODB_DATA_HOME_DIR="${INNODB_DATA_HOME_DIR:-}"
INNODB_LOG_GROUP_HOME="${INNODB_LOG_GROUP_HOME:-}"
INNODB_UNDO_DIR="${INNODB_UNDO_DIR:-}"
INNOEXTRA=""
while [ $# -gt 0 ]; do
case "$1" in
'--address')
WSREP_SST_OPT_ADDR="$2"
#
# Break address string into host:port/path parts
#
case "$WSREP_SST_OPT_ADDR" in
\[*)
# IPv6
# Remove the starting and ending square brackets, if present:
addr_no_bracket="${WSREP_SST_OPT_ADDR#\[}"
# Some utilities and subsequent code require an address
# without square brackets:
readonly WSREP_SST_OPT_HOST_UNESCAPED="${addr_no_bracket%%\]*}"
# Square brackets are needed in most cases:
readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]"
readonly WSREP_SST_OPT_HOST_ESCAPED="\\[${WSREP_SST_OPT_HOST_UNESCAPED}\\]"
# Mark this address as IPv6:
readonly WSREP_SST_OPT_HOST_IPv6=1
;;
*)
readonly WSREP_SST_OPT_HOST="${WSREP_SST_OPT_ADDR%%[:/]*}"
readonly WSREP_SST_OPT_HOST_UNESCAPED="$WSREP_SST_OPT_HOST"
readonly WSREP_SST_OPT_HOST_ESCAPED="$WSREP_SST_OPT_HOST"
readonly WSREP_SST_OPT_HOST_IPv6=0
;;
esac
# Let's remove the leading part that contains the host address:
remain="${WSREP_SST_OPT_ADDR#$WSREP_SST_OPT_HOST_ESCAPED}"
# Let's remove the ":" character that separates the port number
# from the hostname:
remain="${remain#:}"
# Extract the port number from the address - all characters
# up to "/" (if present):
WSREP_SST_OPT_ADDR_PORT="${remain%%/*}"
# If the "/" character is present, then the path is not empty:
if [ "${remain#*/}" != "$remain" ]; then
# This operation removes everything up to the "/" character,
# effectively removing the port number from the string:
readonly WSREP_SST_OPT_PATH="${remain#*/}"
else
readonly WSREP_SST_OPT_PATH=""
fi
# The rest of the string is the same as the path (for now):
remain="$WSREP_SST_OPT_PATH"
# If there is one more "/" in the string, then everything before
# it will be the module name, otherwise the module name is empty:
if [ "${remain%%/*}" != "$remain" ]; then
# This operation removes the tail after the very first
# occurrence of the "/" character (inclusively):
readonly WSREP_SST_OPT_MODULE="${remain%%/*}"
else
readonly WSREP_SST_OPT_MODULE=""
fi
# Remove the module name part from the string, which ends with "/":
remain="${WSREP_SST_OPT_PATH#*/}"
# If the rest of the string does not match the original, then there
# was something else besides the module name:
if [ "$remain" != "$WSREP_SST_OPT_PATH" ]; then
# Extract the part that matches the LSN by removing all
# characters starting from the very first "/":
readonly WSREP_SST_OPT_LSN="${remain%%/*}"
# Exctract everything after the first occurrence of
# the "/" character in the string:
remain="${remain#*/}"
# If the remainder does not match the original string,
# then there is something else (the version number in
# our case):
if [ "$remain" != "$WSREP_SST_OPT_LSN" ]; then
# Let's extract the version number by removing the tail
# after the very first occurence of the "/" character
# (inclusively):
readonly WSREP_SST_OPT_SST_VER="${remain%%/*}"
else
readonly WSREP_SST_OPT_SST_VER=""
fi
else
readonly WSREP_SST_OPT_LSN=""
readonly WSREP_SST_OPT_SST_VER=""
fi
shift
;;
'--bypass')
WSREP_SST_OPT_BYPASS=1
;;
'--datadir')
# Let's remove the trailing slash:
readonly WSREP_SST_OPT_DATA="${2%/}"
shift
;;
'--innodb-data-home-dir')
# Let's remove the trailing slash:
readonly INNODB_DATA_HOME_DIR="${2%/}"
shift
;;
'--innodb-log-group-home-dir')
# Let's remove the trailing slash:
readonly INNODB_LOG_GROUP_HOME="${2%/}"
shift
;;
'--innodb-undo-directory')
# Let's remove the trailing slash:
readonly INNODB_UNDO_DIR="${2%/}"
shift
;;
'--defaults-file')
readonly WSREP_SST_OPT_DEFAULT="$1=$2"
shift
;;
'--defaults-extra-file')
readonly WSREP_SST_OPT_EXTRA_DEFAULT="$1=$2"
shift
;;
'--defaults-group-suffix')
readonly WSREP_SST_OPT_SUFFIX_DEFAULT="$1=$2"
readonly WSREP_SST_OPT_SUFFIX_VALUE="$2"
shift
;;
'--host')
case "$2" in
\[*)
# IPv6
# Remove the starting and ending square brackets, if present:
addr_no_bracket="${2#\[}"
# Some utilities and subsequent code require an address
# without square brackets:
readonly WSREP_SST_OPT_HOST_UNESCAPED="${addr_no_bracket%%\]*}"
# Square brackets are needed in most cases:
readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]"
readonly WSREP_SST_OPT_HOST_ESCAPED="\\[${WSREP_SST_OPT_HOST_UNESCAPED}\\]"
# Mark this address as IPv6:
readonly WSREP_SST_OPT_HOST_IPv6=1
;;
*)
readonly WSREP_SST_OPT_HOST="$2"
readonly WSREP_SST_OPT_HOST_UNESCAPED="$2"
readonly WSREP_SST_OPT_HOST_ESCAPED="$2"
readonly WSREP_SST_OPT_HOST_IPv6=0
;;
esac
WSREP_SST_OPT_ADDR="$WSREP_SST_OPT_HOST"
shift
;;
'--local-port')
readonly WSREP_SST_OPT_LPORT="$2"
shift
;;
'--parent')
readonly WSREP_SST_OPT_PARENT="$2"
shift
;;
'--password')
WSREP_SST_OPT_PSWD="$2"
shift
;;
'--port')
readonly WSREP_SST_OPT_PORT="$2"
shift
;;
'--role')
readonly WSREP_SST_OPT_ROLE="$2"
shift
;;
'--socket')
readonly WSREP_SST_OPT_SOCKET="$2"
shift
;;
'--user')
WSREP_SST_OPT_USER="$2"
shift
;;
'--gtid')
readonly WSREP_SST_OPT_GTID="$2"
shift
;;
'--binlog'|'--log-bin')
readonly WSREP_SST_OPT_BINLOG="$2"
shift
;;
'--binlog-index'|'--log-bin-index')
readonly WSREP_SST_OPT_BINLOG_INDEX="$2"
shift
;;
'--log-basename')
readonly WSREP_SST_OPT_LOG_BASENAME="$2"
shift
;;
'--gtid-domain-id')
readonly WSREP_SST_OPT_GTID_DOMAIN_ID="$2"
shift
;;
'--mysqld-args')
original_cmd=""
shift
while [ $# -gt 0 ]; do
lname="${1#--}"
# "--" is interpreted as the end of the list of options:
if [ -z "$lname" ]; then
shift
if [ $# -gt 0 ]; then
# copy "--" to the output string:
original_cmd="$original_cmd --"
# All other arguments must be copied unchanged:
while [ $# -gt 0 ]; do
original_cmd="$original_cmd '$1'"
shift
done
fi
break;
fi
# Make sure the argument does not start with "--", otherwise it
# is a long option, which is processed after this "if":
if [ "$lname" = "$1" ]; then
# Check if the argument is the short option or the short
# options list, starting with "-":
options="${1#-}"
if [ "$options" != "$1" -a -n "$options" ]; then
slist=""
while [ -n "$options" ]; do
# Let's separate the first character as the current
# option name:
if [ -n "$BASH_VERSION" ]; then
option="${options:0:1}"
else
# If it's not bash, then we need to use slow
# external utilities:
option=$(echo "$options" | cut -c1-1)
fi
# And the subsequent characters consider option value:
value=""
if [ ${#options} -gt 0 ]; then
value="${options#?}"
fi
# Check for options without argument:
if [ "$option" != '?' -a \
"$option" != 'a' -a \
"$option" != 's' -a \
"$option" != 'v' ]
then
# If the option value is absent, then check
# the following argument:
if [ -z "$value" -a $# -gt 1 ]; then
# if the next argument does not start with
# the "-" character, then next argument is
# the current option value:
if [ "${2#-}" = "$2" ]; then
shift
value="$1"
fi
fi
if [ $option == 'h' ]; then
if [ -z "$WSREP_SST_OPT_DATA" ]; then
MYSQLD_OPT_DATADIR="${value%/}"
fi
elif [ $option != 'u' -a \
$option != 'P' ]
then
if [ -z "$value" ]; then
slist="$slist$option"
elif [ -z "$slist" ]; then
slist="$option '$value'"
else
slist="$slist -$option '$value'"
fi
fi
break
else
slist="$slist$option"
fi
options="$value"
done
if [ -n "$slist" ]; then
original_cmd="$original_cmd -$slist"
fi
elif [ -z "$options" ]; then
# We found an equal sign without any characters after it:
original_cmd="$original_cmd -"
else
# We found a value that does not start with a minus -
# it is a positional argument or the value of previous
# option. Copy it to output string (as is):
original_cmd="$original_cmd '$1'"
fi
shift
continue;
fi
# Now we are sure that we are working with an option
# that has a "long" name, so remove all characters after
# the first equal sign:
option="${1%%=*}"
# The "--loose-" prefix should not affect the recognition
# of the option name:
if [ "${option#--loose-}" != "$option" ]; then
option="--${option#--loose-}"
fi
# Some options just need to be removed from the list:
if [ "$option" != '--defaults-file' -a \
"$option" != '--defaults-extra-file' -a \
"$option" != '--defaults-group-suffix' -a \
"$option" != '--user' -a \
"$option" != '--port' -a \
"$option" != '--socket' ]; then
value="${1#*=}"
if [ "$value" = "$1" ]; then
value=""
fi
# Let's fill in the variables containing important paths
# that might not have been passed through explicit parameters
# (+ removing the trailing slash in these paths). Many of these
# options are processed internally within scripts or passed
# explicitly to other programs, so we need to remove them
# from mysqld's argument list:
skip_mysqld_arg=0
case "$option" in
'--innodb-data-home-dir')
if [ -z "$INNODB_DATA_HOME_DIR" ]; then
MYSQLD_OPT_INNODB_DATA_HOME_DIR="${value%/}"
fi
skip_mysqld_arg=1
;;
'--innodb-log-group-home-dir')
if [ -z "$INNODB_LOG_GROUP_HOME" ]; then
MYSQLD_OPT_INNODB_LOG_GROUP_HOME="${value%/}"
fi
skip_mysqld_arg=1
;;
'--innodb-undo-directory')
if [ -z "$INNODB_UNDO_DIR" ]; then
MYSQLD_OPT_INNODB_UNDO_DIR="${value%/}"
fi
skip_mysqld_arg=1
;;
'--log-bin')
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
MYSQLD_OPT_LOG_BIN="$value"
fi
skip_mysqld_arg=1
;;
'--log-bin-index')
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
MYSQLD_OPT_LOG_BIN_INDEX="$value"
fi
skip_mysqld_arg=1
;;
'--log-basename')
if [ -z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
MYSQLD_OPT_LOG_BASENAME="$value"
fi
skip_mysqld_arg=1
;;
'--datadir')
if [ -z "$WSREP_SST_OPT_DATA" ]; then
MYSQLD_OPT_DATADIR="${value%/}"
fi
skip_mysqld_arg=1
;;
esac
if [ $skip_mysqld_arg -eq 0 ]; then
original_cmd="$original_cmd '$1'"
fi
fi
shift
done
WSREP_SST_OPT_MYSQLD="${original_cmd# *}"
break
;;
*) # Must be command usage
# exit 1
;;
esac
shift
done
readonly WSREP_SST_OPT_BYPASS
# The same argument can be present on the command line several
# times, in this case we must take its last value:
if [ -n "${MYSQLD_OPT_INNODB_DATA_HOME_DIR:-}" -a \
-z "$INNODB_DATA_HOME_DIR" ]; then
readonly INNODB_DATA_HOME_DIR="$MYSQLD_OPT_INNODB_DATA_HOME_DIR"
fi
if [ -n "${MYSQLD_OPT_INNODB_LOG_GROUP_HOME:-}" -a \
-z "$INNODB_LOG_GROUP_HOME" ]; then
readonly INNODB_LOG_GROUP_HOME="$MYSQLD_OPT_INNODB_LOG_GROUP_HOME"
fi
if [ -n "${MYSQLD_OPT_INNODB_UNDO_DIR:-}" -a \
-z "$INNODB_UNDO_DIR" ]; then
readonly INNODB_UNDO_DIR="$MYSQLD_OPT_INNODB_UNDO_DIR"
fi
if [ -n "${MYSQLD_OPT_LOG_BIN:-}" -a \
-z "$WSREP_SST_OPT_BINLOG" ]; then
readonly WSREP_SST_OPT_BINLOG="$MYSQLD_OPT_LOG_BIN"
fi
if [ -n "${MYSQLD_OPT_LOG_BIN_INDEX:-}" -a \
-z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
readonly WSREP_SST_OPT_BINLOG_INDEX="$MYSQLD_OPT_LOG_BIN_INDEX"
fi
if [ -n "${MYSQLD_OPT_DATADIR:-}" -a \
-z "$WSREP_SST_OPT_DATA" ]; then
readonly WSREP_SST_OPT_DATA="$MYSQLD_OPT_DATADIR"
fi
if [ -n "${MYSQLD_OPT_LOG_BASENAME:-}" -a \
-z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
readonly WSREP_SST_OPT_LOG_BASENAME="$MYSQLD_OPT_LOG_BASENAME"
fi
# If the --log-bin option is present without a value, then
# setting WSREP_SST_OPT_BINLOG by using other arguments:
if [ -z "$WSREP_SST_OPT_BINLOG" -a -n "${MYSQLD_OPT_LOG_BIN+x}" ]; then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG variable is not set, but
# --log-basename is present among the arguments to mysqld,
# then set WSREP_SST_OPT_BINLOG equal to the base name with
# the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG="$WSREP_SST_OPT_LOG_BASENAME-bin"
else
# Take the default name:
readonly WSREP_SST_OPT_BINLOG='mysql-bin'
fi
fi
# Reconstructing the command line arguments that control the innodb
# and binlog options:
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
if [ -n "$WSREP_SST_OPT_MYSQLD" ]; then
WSREP_SST_OPT_MYSQLD="--log-basename='$WSREP_SST_OPT_LOG_BASENAME' $WSREP_SST_OPT_MYSQLD"
else
WSREP_SST_OPT_MYSQLD="--log-basename='$WSREP_SST_OPT_LOG_BASENAME'"
fi
fi
if [ -n "$INNODB_DATA_HOME_DIR" ]; then
INNOEXTRA="$INNOEXTRA --innodb-data-home-dir='$INNODB_DATA_HOME_DIR'"
fi
if [ -n "$INNODB_LOG_GROUP_HOME" ]; then
INNOEXTRA="$INNOEXTRA --innodb-log-group-home-dir='$INNODB_LOG_GROUP_HOME'"
fi
if [ -n "$INNODB_UNDO_DIR" ]; then
INNOEXTRA="$INNOEXTRA --innodb-undo-directory='$INNODB_UNDO_DIR'"
fi
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
INNOEXTRA="$INNOEXTRA --log-bin='$WSREP_SST_OPT_BINLOG'"
if [ -n "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
if [ -n "$WSREP_SST_OPT_MYSQLD" ]; then
WSREP_SST_OPT_MYSQLD="--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX' $WSREP_SST_OPT_MYSQLD"
else
WSREP_SST_OPT_MYSQLD="--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX'"
fi
fi
fi
readonly WSREP_SST_OPT_MYSQLD
get_binlog()
{
# if no command line argument and WSREP_SST_OPT_BINLOG is not set,
# try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
WSREP_SST_OPT_BINLOG=$(parse_cnf '--mysqld' 'log-bin')
fi
# if no command line argument and WSREP_SST_OPT_BINLOG_INDEX is not set,
# try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
WSREP_SST_OPT_BINLOG_INDEX=$(parse_cnf '--mysqld' 'log-bin-index')
fi
# if no command line argument and WSREP_SST_OPT_LOG_BASENAME is not set,
# try to get it from my.cnf:
if [ -z "$WSREP_SST_OPT_LOG_BASENAME" ]; then
WSREP_SST_OPT_LOG_BASENAME=$(parse_cnf '--mysqld' 'log-basename')
fi
if [ -z "$WSREP_SST_OPT_BINLOG" ]; then
# If the --log-bin option is specified without a parameter,
# then we need to build the name of the index file according
# to the rules described in the server documentation:
if [ -n "${MYSQLD_OPT_LOG_BIN+x}" -o \
$(in_config '--mysqld' 'log-bin') -eq 1 ]
then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG variable is not set, but
# --log-basename is present among the arguments of mysqld,
# then set WSREP_SST_OPT_BINLOG equal to the base name with
# the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG="$WSREP_SST_OPT_LOG_BASENAME-bin"
else
# If the --log-bin option is present without a value, then
# we take the default name:
readonly WSREP_SST_OPT_BINLOG='mysql-bin'
fi
fi
fi
if [ -n "$WSREP_SST_OPT_BINLOG" ]; then
# If the name of the index file is not specified, then we will build
# it according to the specifications for the server:
if [ -z "$WSREP_SST_OPT_BINLOG_INDEX" ]; then
if [ -n "$WSREP_SST_OPT_LOG_BASENAME" ]; then
# If the WSREP_SST_OPT_BINLOG variable is not set, but
# --log-basename is present among the arguments of mysqld,
# then set WSREP_SST_OPT_BINLOG equal to the base name with
# the "-bin" suffix:
readonly WSREP_SST_OPT_BINLOG_INDEX="$WSREP_SST_OPT_LOG_BASENAME-bin.index"
else
# If the base name not specified, then we take
# the default name:
readonly WSREP_SST_OPT_BINLOG_INDEX='mysql-bin.index'
fi
fi
fi
}
# Check the presence of the port value and, if necessary, transfer
# the port number from the address to the WSREP_SST_OPT_PORT variable
# or vice versa, and also, if necessary, substitute the missing port
# value into the address value:
if [ -n "$WSREP_SST_OPT_ADDR_PORT" ]; then
if [ -n "$WSREP_SST_OPT_PORT" ]; then
if [ "$WSREP_SST_OPT_PORT" != "$WSREP_SST_OPT_ADDR_PORT" ]; then
echo "WSREP_SST: [ERROR] port in --port=$WSREP_SST_OPT_PORT differs from port in --address=$WSREP_SST_OPT_ADDR" >&2
exit 2
fi
else
# If the address contains a port number, assign it to
# the corresponding variable:
readonly WSREP_SST_OPT_PORT="$WSREP_SST_OPT_ADDR_PORT"
fi
elif [ -n "$WSREP_SST_OPT_ADDR" ]; then
# If the port is missing, take the default port:
if [ -z "$WSREP_SST_OPT_PORT" ]; then
readonly WSREP_SST_OPT_PORT=4444
fi
WSREP_SST_OPT_ADDR_PORT="$WSREP_SST_OPT_PORT"
# Let's remove the leading part that contains the host address:
remain="${WSREP_SST_OPT_ADDR#$WSREP_SST_OPT_HOST_ESCAPED}"
# Let's remove the ":" character that separates the port number
# from the hostname:
remain="${remain#:}"
# Let's remove all characters upto first "/" character that
# separates the hostname with port number from the path:
remain="${remain#/}"
# Let's construct a new value for the address with the port:
WSREP_SST_OPT_ADDR="$WSREP_SST_OPT_HOST:$WSREP_SST_OPT_PORT"
if [ -n "$remain" ]; then
WSREP_SST_OPT_ADDR="$WSREP_SST_OPT_ADDR/$remain"
fi
fi
readonly WSREP_SST_OPT_ADDR
readonly WSREP_SST_OPT_ADDR_PORT
# try to use my_print_defaults, mysql and mysqldump that come with the sources
# (for MTR suite)
script_binary=$(dirname "$0")
SCRIPTS_DIR=$(cd "$script_binary"; pwd -P)
EXTRA_DIR="$SCRIPTS_DIR/../extra"
CLIENT_DIR="$SCRIPTS_DIR/../client"
if [ -x "$CLIENT_DIR/mysql" ]; then
MYSQL_CLIENT="$CLIENT_DIR/mysql"
else
MYSQL_CLIENT="$(command -v mysql)"
fi
if [ -x "$CLIENT_DIR/mysqldump" ]; then
MYSQLDUMP="$CLIENT_DIR/mysqldump"
else
MYSQLDUMP="$(command -v mysqldump)"
fi
if [ -x "$SCRIPTS_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$SCRIPTS_DIR/my_print_defaults"
elif [ -x "$EXTRA_DIR/my_print_defaults" ]; then
MY_PRINT_DEFAULTS="$EXTRA_DIR/my_print_defaults"
else
MY_PRINT_DEFAULTS="$(command -v my_print_defaults)"
fi
wsrep_defaults="$WSREP_SST_OPT_DEFAULT"
if [ -n "$wsrep_defaults" ]; then
wsrep_defaults="$wsrep_defaults "
fi
wsrep_defaults="$wsrep_defaults$WSREP_SST_OPT_EXTRA_DEFAULT"
if [ -n "$wsrep_defaults" ]; then
wsrep_defaults="$wsrep_defaults "
fi
readonly WSREP_SST_OPT_CONF="$wsrep_defaults$WSREP_SST_OPT_SUFFIX_DEFAULT"
readonly MY_PRINT_DEFAULTS="$MY_PRINT_DEFAULTS $WSREP_SST_OPT_CONF"
#
# User can specify mariabackup specific settings that will be used during sst
# process like encryption, etc. Parse such configuration option.
#
# 1st parameter: group (config file section like sst) or
# my_print_defaults argument (like --mysqld)
# 2nd parameter: var : name of the variable in the section, e.g. server-id
# 3rd parameter: default value for the parameter
#
parse_cnf()
{
local groups="$1"
local var="$2"
local reval=""
# normalize the variable names specified in the .cnf file
# (user can use '_' or '-', for example, log-bin or log_bin),
# then search for the last instance of the desired variable
# and finally get the value of that variable (if the variable
# was specified several times - we use only its last instance):
local pattern='BEGIN {OFS=FS="="} {sub(/^--loose/,"-",$0); gsub(/_/,"-",$1); if ($1=="--'"$var"'") lastval=substr($0,length($1)+2)} END {print lastval}'
while [ -n "$groups" ]; do
# Remove the largest suffix starting with the '|' character:
local group="${groups%%\|*}"
# Remove the remainder (the group name) from the rest
# of the groups list (as if it were a prefix):
groups="${groups#$group}"
groups="${groups#\|}"
# If the group name is the same as the "mysqld" without "--" prefix,
# then try to use it together with the group suffix:
if [ "$group" = 'mysqld' -a -n "$WSREP_SST_OPT_SUFFIX_VALUE" ]; then
reval=$($MY_PRINT_DEFAULTS "mysqld$WSREP_SST_OPT_SUFFIX_VALUE" | awk "$pattern")
if [ -n "$reval" ]; then
break
fi
fi
# Let's try to use the group name as it is:
reval=$($MY_PRINT_DEFAULTS "$group" | awk "$pattern")
if [ -n "$reval" ]; then
break
fi
done
# Use default if we haven't found a value:
if [ -z "$reval" ]; then
[ -n "${3:-}" ] && reval="$3"
fi
echo "$reval"
}
#
# This function simply checks for the presence of the parameter
# in the config file, but does not return its value. It returns "1"
# (true) even if the parameter is present in the configuration file
# without a value:
#
in_config()
{
local groups="$1"
local var="$2"
local found=0
# normalize the variable names specified in the .cnf file
# (user can use '_' or '-', for example, log-bin or log_bin),
# then search for the last instance(s) of the desired variable:
local pattern='BEGIN {OFS=FS="="; found=0} {sub(/^--loose/,"-",$0); gsub(/_/,"-",$1); if ($1=="--'"$var"'") found=1} END {print found}'
while [ -n "$groups" ]; do
# Remove the largest suffix starting with the '|' character:
local group="${groups%%\|*}"
# Remove the remainder (the group name) from the rest
# of the groups list (as if it were a prefix):
groups="${groups#$group}"
groups="${groups#\|}"
# If the group name is the same as the "mysqld" without "--" prefix,
# then try to use it together with the group suffix:
if [ "$group" = 'mysqld' -a -n "$WSREP_SST_OPT_SUFFIX_VALUE" ]; then
found=$($MY_PRINT_DEFAULTS "mysqld$WSREP_SST_OPT_SUFFIX_VALUE" | awk "$pattern")
if [ $found -ne 0 ]; then
break
fi
fi
# Let's try to use the group name as it is:
found=$($MY_PRINT_DEFAULTS "$group" | awk "$pattern")
if [ $found -ne 0 ]; then
break
fi
done
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 [ "$WSREP_SST_OPT_USER" = '(null)' ]; then
WSREP_SST_OPT_USER=""
fi
if [ "$WSREP_SST_OPT_PSWD" = '(null)' ]; then
WSREP_SST_OPT_PSWD=""
fi
if [ "$WSREP_SST_OPT_AUTH" = '(null)' ]; then
WSREP_SST_OPT_AUTH=""
fi
# Let's read the value of the authentication string from the
# configuration file so that it does not go to the command line
# and does not appear in the ps output:
if wsrep_auth_not_set; then
WSREP_SST_OPT_AUTH=$(parse_cnf 'sst' 'wsrep-sst-auth')
fi
# Splitting WSREP_SST_OPT_AUTH as "user:password" pair:
if ! wsrep_auth_not_set
then
# 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
# if the username is not in the command line arguments,
# set the username and password using WSREP_SST_OPT_AUTH
# from the environment:
WSREP_SST_OPT_USER="$WSREP_SST_OPT_AUTH_USER"
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_AUTH#*:}"
elif [ "$WSREP_SST_OPT_USER" = "$WSREP_SST_OPT_AUTH_USER" ]; then
# If the username in the command line arguments and in
# the environment variable are the same, set the password
# if it was not specified in the command line:
if [ -z "$WSREP_SST_OPT_PSWD" ]; then
WSREP_SST_OPT_PSWD="${WSREP_SST_OPT_AUTH#*:}"
fi
else
# The username is passed through the command line and does
# not match the username in the environment variable - ignore
# the environment and rebuild the authentication parameters:
WSREP_SST_OPT_AUTH="$WSREP_SST_OPT_USER:$WSREP_SST_OPT_PSWD"
fi
fi
readonly WSREP_SST_OPT_USER
readonly WSREP_SST_OPT_PSWD
readonly WSREP_SST_OPT_AUTH
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="${WSREP_SST_OPT_REMOTE_AUTH#*:}"
else
readonly WSREP_SST_OPT_REMOTE_USER=
readonly WSREP_SST_OPT_REMOTE_PSWD=
fi
readonly WSREP_SST_OPT_REMOTE_AUTH
if [ -n "$WSREP_SST_OPT_DATA" ]
then
SST_PROGRESS_FILE="$WSREP_SST_OPT_DATA/sst_in_progress"
else
SST_PROGRESS_FILE=""
fi
wsrep_log()
{
# echo everything to stderr so that it gets into common error log
# deliberately made to look different from the rest of the log
local readonly tst="$(date +%Y%m%d\ %H:%M:%S.%N | cut -b -21)"
echo "WSREP_SST: $* ($tst)" >&2
}
wsrep_log_error()
{
wsrep_log "[ERROR] $*"
}
wsrep_log_warning()
{
wsrep_log "[WARNING] $*"
}
wsrep_log_info()
{
wsrep_log "[INFO] $*"
}
wsrep_cleanup_progress_file()
{
[ -n "$SST_PROGRESS_FILE" ] && rm -f "$SST_PROGRESS_FILE" 2>/dev/null || true
}
wsrep_check_program()
{
local prog="$1"
local cmd=$(command -v "$prog")
if [ ! -x "$cmd" ]; then
echo "'$prog' not found in PATH"
return 2 # no such file or directory
fi
}
wsrep_check_programs()
{
local ret=0
while [ $# -gt 0 ]
do
wsrep_check_program "$1" || ret=$?
shift
done
return $ret
}
wsrep_check_datadir()
{
if [ -z "$WSREP_SST_OPT_DATA" ]
then
wsrep_log_error "The '--datadir' parameter must be passed to the SST script"
exit 2
fi
}
get_openssl()
{
# If the OPENSSL_BINARY variable is already defined, just return:
if [ -n "${OPENSSL_BINARY+x}" ]; then
return
fi
# Let's look for openssl:
OPENSSL_BINARY="$(command -v openssl)"
if [ ! -x "$OPENSSL_BINARY" ]; then
OPENSSL_BINARY='/usr/bin/openssl'
if [ ! -x "$OPENSSL_BINARY" ]; then
OPENSSL_BINARY=""
fi
fi
readonly OPENSSL_BINARY
}
# Generate a string equivalent to 16 random bytes
wsrep_gen_secret()
{
get_openssl
if [ -n "$OPENSSL_BINARY" ]
then
echo $("$OPENSSL_BINARY" rand -hex 16)
else
printf "%04x%04x%04x%04x%04x%04x%04x%04x" \
$RANDOM $RANDOM $RANDOM $RANDOM \
$RANDOM $RANDOM $RANDOM $RANDOM
fi
}
is_local_ip()
{
[ "$1" = '127.0.0.1' ] && return 0
[ "$1" = '127.0.0.2' ] && return 0
[ "$1" = 'localhost' ] && return 0
[ "$1" = '[::1]' ] && return 0
[ "$1" = "$(hostname -s)" ] && return 0
[ "$1" = "$(hostname -f)" ] && return 0
[ "$1" = "$(hostname -d)" ] && return 0
local ip_util="$(command -v ip)"
if [ -x "$ip_util" ]; then
# ip address show ouput format is " inet[6] <address>/<mask>":
"$ip_util" address show \
| grep -E "^[[:space:]]*inet.? [^[:space:]]+/" -o \
| grep -F " $1/" >/dev/null && return 0
else
local ifconfig_util="$(command -v ifconfig)"
if [ -x "$ifconfig_util" ]; then
# ifconfig output format is " inet[6] <address> ...":
"$ifconfig_util" \
| grep -E "^[[:space:]]*inet.? [^[:space:]]+ " -o \
| grep -F " $1 " >/dev/null && return 0
fi
fi
return 1
}
check_sockets_utils()
{
lsof_available=0
sockstat_available=0
ss_available=0
[ -x "$(command -v lsof)" ] && lsof_available=1
[ -x "$(command -v sockstat)" ] && sockstat_available=1
[ -x "$(command -v ss)" ] && ss_available=1
if [ $lsof_available -eq 0 -a \
$sockstat_available -eq 0 -a \
$ss_available -eq 0 ]
then
wsrep_log_error "Neither lsof tool, nor ss or sockstat was found in " \
"the PATH! Make sure you have it installed."
exit 2 # ENOENT
fi
}
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