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osync/osync.sh
deajan 20d8fafa8d Rebuilt targets
2016-08-19 10:57:20 +02:00

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#!/usr/bin/env bash
#TODO(critical): handle conflict prevalance, especially in sync_attrs function
#TODO(critical): test new WaitForTaskCompletion behavior with self=true
PROGRAM="osync" # Rsync based two way sync engine with fault tolerance
AUTHOR="(C) 2013-2016 by Orsiris de Jong"
CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
PROGRAM_VERSION=1.2-dev-parallel
PROGRAM_BUILD=2016081902
IS_STABLE=no
#### MINIMAL-FUNCTION-SET BEGIN ####
## FUNC_BUILD=2016081805
## BEGIN Generic functions for osync & obackup written in 2013-2016 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
## type -p does not work on platforms other than linux (bash). If if does not work, always assume output is not a zero exitcode
if ! type "$BASH" > /dev/null; then
echo "Please run this script only with bash shell. Tested on bash >= 3.2"
exit 127
fi
## Correct output of sort command (language agnostic sorting)
export LC_ALL=C
# Standard alert mail body
MAIL_ALERT_MSG="Execution of $PROGRAM instance $INSTANCE_ID on $(date) has warnings/errors."
# Environment variables that can be overriden by programs
_DRYRUN=0
_SILENT=0
_LOGGER_PREFIX="date"
_LOGGER_STDERR=0
if [ "$KEEP_LOGGING" == "" ]; then
KEEP_LOGGING=1801
fi
# Initial error status, logging 'WARN', 'ERROR' or 'CRITICAL' will enable alerts flags
ERROR_ALERT=0
WARN_ALERT=0
## allow debugging from command line with _DEBUG=yes
if [ ! "$_DEBUG" == "yes" ]; then
_DEBUG=no
SLEEP_TIME=.05 # Tested under linux and FreeBSD bash, #TODO tests on cygwin / msys
_VERBOSE=0
else
SLEEP_TIME=1
trap 'TrapError ${LINENO} $?' ERR
_VERBOSE=1
fi
SCRIPT_PID=$$
LOCAL_USER=$(whoami)
LOCAL_HOST=$(hostname)
## Default log file until config file is loaded
if [ -w /var/log ]; then
LOG_FILE="/var/log/$PROGRAM.log"
elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
LOG_FILE="$HOME/$PROGRAM.log"
else
LOG_FILE="./$PROGRAM.log"
fi
## Default directory where to store temporary run files
if [ -w /tmp ]; then
RUN_DIR=/tmp
elif [ -w /var/tmp ]; then
RUN_DIR=/var/tmp
else
RUN_DIR=.
fi
# Default alert attachment filename
ALERT_LOG_FILE="$RUN_DIR/$PROGRAM.last.log"
# Set error exit code if a piped command fails
set -o pipefail
set -o errtrace
function Dummy {
sleep $SLEEP_TIME
}
# Sub function of Logger
function _Logger {
local svalue="${1}" # What to log to stdout
local lvalue="${2:-$svalue}" # What to log to logfile, defaults to screen value
local evalue="${3}" # What to log to stderr
echo -e "$lvalue" >> "$LOG_FILE"
if [ "$_LOGGER_STDERR" -eq 1 ]; then
cat <<< "$evalue" 1>&2
elif [ "$_SILENT" -eq 0 ]; then
echo -e "$svalue"
fi
}
# General log function with log levels
function Logger {
local value="${1}" # Sentence to log (in double quotes)
local level="${2}" # Log level: PARANOIA_DEBUG, DEBUG, NOTICE, WARN, ERROR, CRITIAL
if [ "$_LOGGER_PREFIX" == "time" ]; then
prefix="TIME: $SECONDS - "
elif [ "$_LOGGER_PREFIX" == "date" ]; then
prefix="$(date) - "
else
prefix=""
fi
if [ "$level" == "CRITICAL" ]; then
_Logger "$prefix\e[41m$value\e[0m" "$prefix$level:$value" "$level:$value"
ERROR_ALERT=1
return
elif [ "$level" == "ERROR" ]; then
_Logger "$prefix\e[91m$value\e[0m" "$prefix$level:$value" "$level:$value"
ERROR_ALERT=1
return
elif [ "$level" == "WARN" ]; then
_Logger "$prefix\e[93m$value\e[0m" "$prefix$level:$value" "$level:$value"
WARN_ALERT=1
return
elif [ "$level" == "NOTICE" ]; then
_Logger "$prefix$value"
return
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == "yes" ]; then
_Logger "$prefix$value"
return
fi
else
_Logger "\e[41mLogger function called without proper loglevel.\e[0m"
_Logger "$prefix$value"
fi
}
# QuickLogger subfunction, can be called directly
function _QuickLogger {
local value="${1}"
local destination="${2}" # Destination: stdout, log, both
if ([ "$destination" == "log" ] || [ "$destination" == "both" ]); then
echo -e "$(date) - $value" >> "$LOG_FILE"
elif ([ "$destination" == "stdout" ] || [ "$destination" == "both" ]); then
echo -e "$value"
fi
}
# Generic quick logging function
function QuickLogger {
local value="${1}"
if [ "$_SILENT" -eq 1 ]; then
_QuickLogger "$value" "log"
else
_QuickLogger "$value" "stdout"
fi
}
# Portable child (and grandchild) kill function tester under Linux, BSD and MacOS X
function KillChilds {
local pid="${1}" # Parent pid to kill childs
local self="${2:-false}" # Should parent be killed too ?
if children="$(pgrep -P "$pid")"; then
for child in $children; do
KillChilds "$child" true
done
fi
# Try to kill nicely, if not, wait 15 seconds to let Trap actions happen before killing
if ( [ "$self" == true ] && kill -0 $pid > /dev/null 2>&1); then
Logger "Sending SIGTERM to process [$pid]." "DEBUG"
kill -s SIGTERM "$pid"
if [ $? != 0 ]; then
sleep 15
Logger "Sending SIGTERM to process [$pid] failed." "DEBUG"
kill -9 "$pid"
if [ $? != 0 ]; then
Logger "Sending SIGKILL to process [$pid] failed." "DEBUG"
return 1
fi
else
return 0
fi
else
return 0
fi
}
function KillAllChilds {
local pids="${1}" # List of parent pids to kill separated by semi-colon
local self="${2:-false}" # Should parent be killed too ?
local errorcount=0
IFS=';' read -a pidsArray <<< "$pids"
for pid in "${pidsArray[@]}"; do
KillChilds $pid $self
if [ $? != 0 ]; then
errorcount=$((errorcount+1))
fi
done
return $errorcount
}
# osync/obackup/pmocr script specific mail alert function, use SendEmail function for generic mail sending
function SendAlert {
local mail_no_attachment=
local attachment_command=
local subject=
# Windows specific settings
local encryption_string=
local auth_string=
if [ "$DESTINATION_MAILS" == "" ]; then
return 0
fi
if [ "$_DEBUG" == "yes" ]; then
Logger "Debug mode, no warning mail will be sent." "NOTICE"
return 0
fi
# <OSYNC SPECIFIC>
if [ "$_QUICK_SYNC" == "2" ]; then
Logger "Current task is a quicksync task. Will not send any alert." "NOTICE"
return 0
fi
# </OSYNC SPECIFIC>
eval "cat \"$LOG_FILE\" $COMPRESSION_PROGRAM > $ALERT_LOG_FILE"
if [ $? != 0 ]; then
Logger "Cannot create [$ALERT_LOG_FILE]" "WARN"
mail_no_attachment=1
else
mail_no_attachment=0
fi
MAIL_ALERT_MSG="$MAIL_ALERT_MSG"$'\n\n'$(tail -n 50 "$LOG_FILE")
if [ $ERROR_ALERT -eq 1 ]; then
subject="Error alert for $INSTANCE_ID"
elif [ $WARN_ALERT -eq 1 ]; then
subject="Warning alert for $INSTANCE_ID"
else
subject="Alert for $INSTANCE_ID"
fi
if [ "$mail_no_attachment" -eq 0 ]; then
attachment_command="-a $ALERT_LOG_FILE"
fi
if type mutt > /dev/null 2>&1 ; then
echo "$MAIL_ALERT_MSG" | $(type -p mutt) -x -s "$subject" $DESTINATION_MAILS $attachment_command
if [ $? != 0 ]; then
Logger "Cannot send alert mail via $(type -p mutt) !!!" "WARN"
else
Logger "Sent alert mail using mutt." "NOTICE"
return 0
fi
fi
if type mail > /dev/null 2>&1 ; then
if [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V | grep "GNU" > /dev/null; then
attachment_command="-A $ALERT_LOG_FILE"
elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V > /dev/null; then
attachment_command="-a$ALERT_LOG_FILE"
else
attachment_command=""
fi
echo "$MAIL_ALERT_MSG" | $(type -p mail) $attachment_command -s "$subject" $DESTINATION_MAILS
if [ $? != 0 ]; then
Logger "Cannot send alert mail via $(type -p mail) with attachments !!!" "WARN"
echo "$MAIL_ALERT_MSG" | $(type -p mail) -s "$subject" $DESTINATION_MAILS
if [ $? != 0 ]; then
Logger "Cannot send alert mail via $(type -p mail) without attachments !!!" "WARN"
else
Logger "Sent alert mail using mail command without attachment." "NOTICE"
return 0
fi
else
Logger "Sent alert mail using mail command." "NOTICE"
return 0
fi
fi
if type sendmail > /dev/null 2>&1 ; then
echo -e "Subject:$subject\r\n$MAIL_ALERT_MSG" | $(type -p sendmail) $DESTINATION_MAILS
if [ $? != 0 ]; then
Logger "Cannot send alert mail via $(type -p sendmail) !!!" "WARN"
else
Logger "Sent alert mail using sendmail command without attachment." "NOTICE"
return 0
fi
fi
# Windows specific
if type "mailsend.exe" > /dev/null 2>&1 ; then
if [ "$SMTP_ENCRYPTION" != "tls" ] && [ "$SMTP_ENCRYPTION" != "ssl" ] && [ "$SMTP_ENCRYPTION" != "none" ]; then
Logger "Bogus smtp encryption, assuming none." "WARN"
encryption_string=
elif [ "$SMTP_ENCRYPTION" == "tls" ]; then
encryption_string=-starttls
elif [ "$SMTP_ENCRYPTION" == "ssl" ]:; then
encryption_string=-ssl
fi
if [ "$SMTP_USER" != "" ] && [ "$SMTP_USER" != "" ]; then
auth_string="-auth -user \"$SMTP_USER\" -pass \"$SMTP_PASSWORD\""
fi
$(type mailsend.exe) -f $SENDER_MAIL -t "$DESTINATION_MAILS" -sub "$subject" -M "$MAIL_ALERT_MSG" -attach "$attachment" -smtp "$SMTP_SERVER" -port "$SMTP_PORT" $encryption_string $auth_string
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type mailsend.exe) !!!" "WARN"
else
Logger "Sent mail using mailsend.exe command with attachment." "NOTICE"
return 0
fi
fi
# Windows specific, kept for compatibility (sendemail from http://caspian.dotconf.net/menu/Software/SendEmail/)
if type sendemail > /dev/null 2>&1 ; then
if [ "$SMTP_USER" != "" ] && [ "$SMTP_PASSWORD" != "" ]; then
SMTP_OPTIONS="-xu $SMTP_USER -xp $SMTP_PASSWORD"
else
SMTP_OPTIONS=""
fi
$(type -p sendemail) -f $SENDER_MAIL -t "$DESTINATION_MAILS" -u "$subject" -m "$MAIL_ALERT_MSG" -s $SMTP_SERVER $SMTP_OPTIONS > /dev/null 2>&1
if [ $? != 0 ]; then
Logger "Cannot send alert mail via $(type -p sendemail) !!!" "WARN"
else
Logger "Sent alert mail using sendemail command without attachment." "NOTICE"
return 0
fi
fi
# pfSense specific
if [ -f /usr/local/bin/mail.php ]; then
echo "$MAIL_ALERT_MSG" | /usr/local/bin/mail.php -s="$subject"
if [ $? != 0 ]; then
Logger "Cannot send alert mail via /usr/local/bin/mail.php (pfsense) !!!" "WARN"
else
Logger "Sent alert mail using pfSense mail.php." "NOTICE"
return 0
fi
fi
# If function has not returned 0 yet, assume it is critical that no alert can be sent
Logger "Cannot send alert (neither mutt, mail, sendmail, mailsend, sendemail or pfSense mail.php could be used)." "ERROR" # Is not marked critical because execution must continue
# Delete tmp log file
if [ -f "$ALERT_LOG_FILE" ]; then
rm "$ALERT_LOG_FILE"
fi
}
# Generic email sending function.
# Usage (linux / BSD), attachment is optional, can be "/path/to/my.file" or ""
# SendEmail "subject" "Body text" "receiver@example.com receiver2@otherdomain.com" "/path/to/attachment.file"
# Usage (Windows, make sure you have mailsend.exe in executable path, see http://github.com/muquit/mailsend)
# attachment is optional but must be in windows format like "c:\\some\path\\my.file", or ""
# smtp_server.domain.tld is mandatory, as is smtp_port (should be 25, 465 or 587)
# encryption can be set to tls, ssl or none
# smtp_user and smtp_password are optional
# SendEmail "subject" "Body text" "receiver@example.com receiver2@otherdomain.com" "/path/to/attachment.file" "sender_email@example.com" "smtp_server.domain.tld" "smtp_port" "encryption" "smtp_user" "smtp_password"
function SendEmail {
local subject="${1}"
local message="${2}"
local destination_mails="${3}"
local attachment="${4}"
local sender_email="${5}"
local smtp_server="${6}"
local smtp_port="${7}"
local encryption="${8}"
local smtp_user="${9}"
local smtp_password="${10}"
# CheckArguments will report a warning that can be ignored if used in Windows with paranoia debug enabled
local mail_no_attachment=
local attachment_command=
local encryption_string=
local auth_string=
if [ ! -f "$attachment" ]; then
attachment_command="-a $ALERT_LOG_FILE"
mail_no_attachment=1
else
mail_no_attachment=0
fi
if type mutt > /dev/null 2>&1 ; then
echo "$message" | $(type -p mutt) -x -s "$subject" "$destination_mails" $attachment_command
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type -p mutt) !!!" "WARN"
else
Logger "Sent mail using mutt." "NOTICE"
return 0
fi
fi
if type mail > /dev/null 2>&1 ; then
if [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V | grep "GNU" > /dev/null; then
attachment_command="-A $attachment"
elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V > /dev/null; then
attachment_command="-a$attachment"
else
attachment_command=""
fi
echo "$message" | $(type -p mail) $attachment_command -s "$subject" "$destination_mails"
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type -p mail) with attachments !!!" "WARN"
echo "$message" | $(type -p mail) -s "$subject" "$destination_mails"
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type -p mail) without attachments !!!" "WARN"
else
Logger "Sent mail using mail command without attachment." "NOTICE"
return 0
fi
else
Logger "Sent mail using mail command." "NOTICE"
return 0
fi
fi
if type sendmail > /dev/null 2>&1 ; then
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) "$destination_mails"
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type -p sendmail) !!!" "WARN"
else
Logger "Sent mail using sendmail command without attachment." "NOTICE"
return 0
fi
fi
# Windows specific
if type "mailsend.exe" > /dev/null 2>&1 ; then
if [ "$sender_email" == "" ]; then
Logger "Missing sender email." "ERROR"
return 1
fi
if [ "$smtp_server" == "" ]; then
Logger "Missing smtp port." "ERROR"
return 1
fi
if [ "$smtp_port" == "" ]; then
Logger "Missing smtp port, assuming 25." "WARN"
smtp_port=25
fi
if [ "$encryption" != "tls" ] && [ "$encryption" != "ssl" ] && [ "$encryption" != "none" ]; then
Logger "Bogus smtp encryption, assuming none." "WARN"
encryption_string=
elif [ "$encryption" == "tls" ]; then
encryption_string=-starttls
elif [ "$encryption" == "ssl" ]:; then
encryption_string=-ssl
fi
if [ "$smtp_user" != "" ] && [ "$smtp_password" != "" ]; then
auth_string="-auth -user \"$smtp_user\" -pass \"$smtp_password\""
fi
$(type mailsend.exe) -f "$sender_email" -t "$destination_mails" -sub "$subject" -M "$message" -attach "$attachment" -smtp "$smtp_server" -port "$smtp_port" $encryption_string $auth_string
if [ $? != 0 ]; then
Logger "Cannot send mail via $(type mailsend.exe) !!!" "WARN"
else
Logger "Sent mail using mailsend.exe command with attachment." "NOTICE"
return 0
fi
fi
# pfSense specific
if [ -f /usr/local/bin/mail.php ]; then
echo "$message" | /usr/local/bin/mail.php -s="$subject"
if [ $? != 0 ]; then
Logger "Cannot send mail via /usr/local/bin/mail.php (pfsense) !!!" "WARN"
else
Logger "Sent mail using pfSense mail.php." "NOTICE"
return 0
fi
fi
# If function has not returned 0 yet, assume it is critical that no alert can be sent
Logger "Cannot send mail (neither mutt, mail, sendmail, sendemail, mailsend (windows) or pfSense mail.php could be used)." "ERROR" # Is not marked critical because execution must continue
}
function TrapError {
local job="$0"
local line="$1"
local code="${2:-1}"
if [ $_SILENT -eq 0 ]; then
echo -e " /!\ ERROR in ${job}: Near line ${line}, exit code ${code}"
fi
}
function LoadConfigFile {
local config_file="${1}"
if [ ! -f "$config_file" ]; then
Logger "Cannot load configuration file [$config_file]. Cannot start." "CRITICAL"
exit 1
elif [[ "$1" != *".conf" ]]; then
Logger "Wrong configuration file supplied [$config_file]. Cannot start." "CRITICAL"
exit 1
else
grep '^[^ ]*=[^;&]*' "$config_file" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" # WITHOUT COMMENTS
# Shellcheck source=./sync.conf
source "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
fi
CONFIG_FILE="$config_file"
}
function Spinner {
if [ $_SILENT -eq 1 ]; then
return 0
fi
case $toggle
in
1)
echo -n " \ "
echo -ne "\r"
toggle="2"
;;
2)
echo -n " | "
echo -ne "\r"
toggle="3"
;;
3)
echo -n " / "
echo -ne "\r"
toggle="4"
;;
*)
echo -n " - "
echo -ne "\r"
toggle="1"
;;
esac
}
# Array to string converter, see http://stackoverflow.com/questions/1527049/bash-join-elements-of-an-array
# usage: joinString separaratorChar Array
function joinString {
local IFS="$1"; shift; echo "$*";
}
# Time control function for background processes, suitable for multiple synchronous processes
# Fills a global variable called WAIT_FOR_TASK_COMPLETION that contains list of failed pids in format pid1:result1;pid2:result2
# Warning: Don't imbricate this function into another run if you plan to use the global variable output
function WaitForTaskCompletion {
local pids="${1}" # pids to wait for, separated by semi-colon
local soft_max_time="${2}" # If program with pid $pid takes longer than $soft_max_time seconds, will log a warning, unless $soft_max_time equals 0.
local hard_max_time="${3}" # If program with pid $pid takes longer than $hard_max_time seconds, will stop execution, unless $hard_max_time equals 0.
local caller_name="${4}" # Who called this function
local counting="${5:-true}" # Count time since function has been launched if true, since script has been launched if false
local keep_logging="${6:-0}" # Log a standby message every X seconds. Set to zero to disable logging
local soft_alert=0 # Does a soft alert need to be triggered, if yes, send an alert once
local log_ttime=0 # local time instance for comparaison
local seconds_begin=$SECONDS # Seconds since the beginning of the script
local exec_time=0 # Seconds since the beginning of this function
local retval=0 # return value of monitored pid process
local errorcount=0 # Number of pids that finished with errors
local pidCount # number of given pids
local pidState # State of the process
IFS=';' read -a pidsArray <<< "$pids"
pidCount=${#pidsArray[@]}
WAIT_FOR_TASK_COMPLETION=""
while [ ${#pidsArray[@]} -gt 0 ]; do
newPidsArray=()
for pid in "${pidsArray[@]}"; do
if kill -0 $pid > /dev/null 2>&1; then
# Handle uninterruptible sleep state or zombies by ommiting them from running process array (How to kill that is already dead ? :)
#TODO(high): have this tested on *BSD, Mac & Win
pidState=$(ps -p$pid -o state= 2 > /dev/null)
if [ "$pidState" != "D" ] && [ "$pidState" != "Z" ]; then
newPidsArray+=($pid)
fi
else
# pid is dead, get it's exit code from wait command
wait $pid
retval=$?
if [ $retval -ne 0 ]; then
errorcount=$((errorcount+1))
Logger "${FUNCNAME[0]} called by [$caller_name] finished monitoring [$pid] with exitcode [$result]." "DEBUG"
if [ "$WAIT_FOR_TASK_COMPLETION" == "" ]; then
WAIT_FOR_TASK_COMPLETION="$pid:$result"
else
WAIT_FOR_TASK_COMPLETION=";$pid:$result"
fi
fi
fi
done
Spinner
if [ $counting == true ]; then
exec_time=$(($SECONDS - $seconds_begin))
else
exec_time=$SECONDS
fi
if [ $keep_logging -ne 0 ]; then
if [ $((($exec_time + 1) % $keep_logging)) -eq 0 ]; then
if [ $log_ttime -ne $exec_time ]; then # Fix when sleep time lower than 1s
log_ttime=$exec_time
Logger "Current tasks still running with pids [$(joinString , ${pidsArray[@]})]." "NOTICE"
fi
fi
fi
if [ $exec_time -gt $soft_max_time ]; then
if [ $soft_alert -eq 0 ] && [ $soft_max_time -ne 0 ]; then
Logger "Max soft execution time exceeded for task [$caller_name] with pids [$(joinString , ${pidsArray[@]})]." "WARN"
soft_alert=1
SendAlert
fi
if [ $exec_time -gt $hard_max_time ] && [ $hard_max_time -ne 0 ]; then
Logger "Max hard execution time exceeded for task [$caller_name] with pids [$(joinString , ${pidsArray[@]})]. Stopping task execution." "ERROR"
for pid in "${pidsArray[@]}"; do
KillChilds $pid true
if [ $? == 0 ]; then
Logger "Task with pid [$pid] stopped successfully." "NOTICE"
else
Logger "Could not stop task with pid [$pid]." "ERROR"
fi
done
SendAlert
errrorcount=$((errorcount+1))
fi
fi
pidsArray=("${newPidsArray[@]}")
sleep $SLEEP_TIME
done
# Return exit code if only one process was monitored, else return number of errors
if [ $pidCount -eq 1 ] && [ $errorcount -eq 0 ]; then
return $errorcount
else
return $errorcount
fi
}
function CleanUp {
if [ "$_DEBUG" != "yes" ]; then
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID"
# Fix for sed -i requiring backup extension for BSD & Mac (see all sed -i statements)
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.tmp"
fi
}
#### MINIMAL-FUNCTION-SET END ####
# obsolete, use StripQuotes
function SedStripQuotes {
echo $(echo $1 | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")
}
# Usage: var=$(StripSingleQuotes "$var")
function StripSingleQuotes {
local string="${1}"
string="${string/#\'/}" # Remove singlequote if it begins string
string="${string/%\'/}" # Remove singlequote if it ends string
echo "$string"
}
# Usage: var=$(StripDoubleQuotes "$var")
function StripDoubleQuotes {
local string="${1}"
string="${string/#\"/}"
string="${string/%\"/}"
echo "$string"
}
function StripQuotes {
local string="${1}"
echo "$(StripSingleQuotes $(StripDoubleQuotes $string))"
}
function EscapeSpaces {
local string="${1}" # String on which spaces will be escaped
echo "${string// /\ }"
}
function IsNumeric {
eval "local value=\"${1}\"" # Needed eval so variable variables can be processed
local re="^-?[0-9]+([.][0-9]+)?$"
if [[ $value =~ $re ]]; then
echo 1
else
echo 0
fi
}
## from https://gist.github.com/cdown/1163649
function urlEncode {
local length="${#1}"
local LANG=C
for (( i = 0; i < length; i++ )); do
local c="${1:i:1}"
case $c in
[a-zA-Z0-9.~_-])
printf "$c"
;;
*)
printf '%%%02X' "'$c"
;;
esac
done
}
function urlDecode {
local url_encoded="${1//+/ }"
printf '%b' "${url_encoded//%/\\x}"
}
function GetLocalOS {
local local_os_var=
local_os_var="$(uname -spio 2>&1)"
if [ $? != 0 ]; then
local_os_var="$(uname -v 2>&1)"
if [ $? != 0 ]; then
local_os_var="$(uname)"
fi
fi
case $local_os_var in
*"Linux"*)
LOCAL_OS="Linux"
;;
*"BSD"*)
LOCAL_OS="BSD"
;;
*"MINGW32"*|*"CYGWIN"*)
LOCAL_OS="msys"
;;
*"Darwin"*)
LOCAL_OS="MacOSX"
;;
*)
if [ "$IGNORE_OS_TYPE" == "yes" ]; then #DOC: Undocumented option
Logger "Running on unknown local OS [$local_os_var]." "WARN"
return
fi
Logger "Running on >> $local_os_var << not supported. Please report to the author." "ERROR"
exit 1
;;
esac
Logger "Local OS: [$local_os_var]." "DEBUG"
}
function GetRemoteOS {
local cmd=
local remote_os_var=
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "uname -spio" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 120 240 ${FUNCNAME[0]}"-1" true $KEEP_LOGGING
retval=$?
if [ $retval != 0 ]; then
cmd=$SSH_CMD' "uname -v" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 120 240 ${FUNCNAME[0]}"-2" true $KEEP_LOGGING
retval=$?
if [ $retval != 0 ]; then
cmd=$SSH_CMD' "uname" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 120 240 ${FUNCNAME[0]}"-3" true $KEEP_LOGGING
retval=$?
if [ $retval != 0 ]; then
Logger "Cannot Get remote OS type." "ERROR"
fi
fi
fi
remote_os_var=$(cat "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID")
case $remote_os_var in
*"Linux"*)
REMOTE_OS="Linux"
;;
*"BSD"*)
REMOTE_OS="BSD"
;;
*"MINGW32"*|*"CYGWIN"*)
REMOTE_OS="msys"
;;
*"Darwin"*)
REMOTE_OS="MacOSX"
;;
*"ssh"*|*"SSH"*)
Logger "Cannot connect to remote system." "CRITICAL"
exit 1
;;
*)
if [ "$IGNORE_OS_TYPE" == "yes" ]; then #DOC: Undocumented option
Logger "Running on unknown remote OS [$remote_os_var]." "WARN"
return
fi
Logger "Running on remote OS failed. Please report to the author if the OS is not supported." "CRITICAL"
Logger "Remote OS said:\n$remote_os_var" "CRITICAL"
exit 1
esac
Logger "Remote OS: [$remote_os_var]." "DEBUG"
fi
}
function RunLocalCommand {
local command="${1}" # Command to run
local hard_max_time="${2}" # Max time to wait for command to compleet
if [ $_DRYRUN -ne 0 ]; then
Logger "Dryrun: Local command [$command] not run." "NOTICE"
return 0
fi
Logger "Running command [$command] on local host." "NOTICE"
eval "$command" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1 &
WaitForTaskCompletion $! 0 $hard_max_time ${FUNCNAME[0]} true $KEEP_LOGGING
retval=$?
if [ $retval -eq 0 ]; then
Logger "Command succeded." "NOTICE"
else
Logger "Command failed." "ERROR"
fi
if [ $_VERBOSE -eq 1 ] || [ $retval -ne 0 ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]; then
Logger "Stopping on command execution error." "CRITICAL"
exit 1
fi
}
## Runs remote command $1 and waits for completition in $2 seconds
function RunRemoteCommand {
local command="${1}" # Command to run
local hard_max_time="${2}" # Max time to wait for command to compleet
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ $_DRYRUN -ne 0 ]; then
Logger "Dryrun: Local command [$command] not run." "NOTICE"
return 0
fi
Logger "Running command [$command] on remote host." "NOTICE"
cmd=$SSH_CMD' "$command" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 0 $hard_max_time ${FUNCNAME[0]} true $KEEP_LOGGING
retval=$?
if [ $retval -eq 0 ]; then
Logger "Command succeded." "NOTICE"
else
Logger "Command failed." "ERROR"
fi
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ] && ([ $_VERBOSE -eq 1 ] || [ $retval -ne 0 ])
then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]; then
Logger "Stopping on command execution error." "CRITICAL"
exit 1
fi
}
function RunBeforeHook {
local pids=
if [ "$LOCAL_RUN_BEFORE_CMD" != "" ]; then
RunLocalCommand "$LOCAL_RUN_BEFORE_CMD" $MAX_EXEC_TIME_PER_CMD_BEFORE &
pids="$!"
fi
if [ "$REMOTE_RUN_BEFORE_CMD" != "" ]; then
RunRemoteCommand "$REMOTE_RUN_BEFORE_CMD" $MAX_EXEC_TIME_PER_CMD_BEFORE &
pids="$pids;$!"
fi
if [ "$pids" != "" ]; then
WaitForTaskCompletion $pids 0 0 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
}
function RunAfterHook {
local pids
if [ "$LOCAL_RUN_AFTER_CMD" != "" ]; then
RunLocalCommand "$LOCAL_RUN_AFTER_CMD" $MAX_EXEC_TIME_PER_CMD_AFTER &
pids="$!"
fi
if [ "$REMOTE_RUN_AFTER_CMD" != "" ]; then
RunRemoteCommand "$REMOTE_RUN_AFTER_CMD" $MAX_EXEC_TIME_PER_CMD_AFTER &
pids="$pids;$!"
fi
if [ "$pids" != "" ]; then
WaitForTaskCompletion $pids 0 0 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
}
function CheckConnectivityRemoteHost {
if [ "$_PARANOIA_DEBUG" != "yes" ]; then # Do not loose time in paranoia debug
if [ "$REMOTE_HOST_PING" != "no" ] && [ "$REMOTE_OPERATION" != "no" ]; then
eval "$PING_CMD $REMOTE_HOST > /dev/null 2>&1" &
WaitForTaskCompletion $! 10 180 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot ping $REMOTE_HOST" "ERROR"
return 1
fi
fi
fi
}
function CheckConnectivity3rdPartyHosts {
local remote_3rd_party_success
local pids
if [ "$_PARANOIA_DEBUG" != "yes" ]; then # Do not loose time in paranoia debug
if [ "$REMOTE_3RD_PARTY_HOSTS" != "" ]; then
remote_3rd_party_success=0
for i in $REMOTE_3RD_PARTY_HOSTS
do
eval "$PING_CMD $i > /dev/null 2>&1" &
WaitForTaskCompletion $! 10 360 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot ping 3rd party host $i" "NOTICE"
else
remote_3rd_party_success=1
fi
done
if [ $remote_3rd_party_success -ne 1 ]; then
Logger "No remote 3rd party host responded to ping. No internet ?" "ERROR"
return 1
else
return 0
fi
fi
fi
}
#__BEGIN_WITH_PARANOIA_DEBUG
#__END_WITH_PARANOIA_DEBUG
function RsyncPatternsAdd {
local pattern_type="${1}" # exclude or include
local pattern="${2}"
local rest
# Disable globbing so wildcards from exclusions do not get expanded
set -f
rest="$pattern"
while [ -n "$rest" ]
do
# Take the string until first occurence until $PATH_SEPARATOR_CHAR
str=${rest%%;*}
# Handle the last case
if [ "$rest" = "${rest/$PATH_SEPARATOR_CHAR/}" ]; then
rest=
else
# Cut everything before the first occurence of $PATH_SEPARATOR_CHAR
rest=${rest#*$PATH_SEPARATOR_CHAR}
fi
if [ "$RSYNC_PATTERNS" == "" ]; then
RSYNC_PATTERNS="--"$pattern_type"=\"$str\""
else
RSYNC_PATTERNS="$RSYNC_PATTERNS --"$pattern_type"=\"$str\""
fi
done
set +f
}
function RsyncPatternsFromAdd {
local pattern_type="${1}"
local pattern_from="${2}"
## Check if the exclude list has a full path, and if not, add the config file path if there is one
if [ "$(basename $pattern_from)" == "$pattern_from" ]; then
pattern_from="$(dirname $CONFIG_FILE)/$pattern_from"
fi
if [ -e "$pattern_from" ]; then
RSYNC_PATTERNS="$RSYNC_PATTERNS --"$pattern_type"-from=\"$pattern_from\""
fi
}
function RsyncPatterns {
if [ "$RSYNC_PATTERN_FIRST" == "exclude" ]; then
if [ "$RSYNC_EXCLUDE_PATTERN" != "" ]; then
RsyncPatternsAdd "exclude" "$RSYNC_EXCLUDE_PATTERN"
fi
if [ "$RSYNC_EXCLUDE_FROM" != "" ]; then
RsyncPatternsFromAdd "exclude" "$RSYNC_EXCLUDE_FROM"
fi
if [ "$RSYNC_INCLUDE_PATTERN" != "" ]; then
RsyncPatternsAdd "$RSYNC_INCLUDE_PATTERN" "include"
fi
if [ "$RSYNC_INCLUDE_FROM" != "" ]; then
RsyncPatternsFromAdd "include" "$RSYNC_INCLUDE_FROM"
fi
elif [ "$RSYNC_PATTERN_FIRST" == "include" ]; then
if [ "$RSYNC_INCLUDE_PATTERN" != "" ]; then
RsyncPatternsAdd "include" "$RSYNC_INCLUDE_PATTERN"
fi
if [ "$RSYNC_INCLUDE_FROM" != "" ]; then
RsyncPatternsFromAdd "include" "$RSYNC_INCLUDE_FROM"
fi
if [ "$RSYNC_EXCLUDE_PATTERN" != "" ]; then
RsyncPatternsAdd "exclude" "$RSYNC_EXCLUDE_PATTERN"
fi
if [ "$RSYNC_EXCLUDE_FROM" != "" ]; then
RsyncPatternsFromAdd "exclude" "$RSYNC_EXCLUDE_FROM"
fi
else
Logger "Bogus RSYNC_PATTERN_FIRST value in config file. Will not use rsync patterns." "WARN"
fi
}
function PreInit {
## SSH compression
if [ "$SSH_COMPRESSION" != "no" ]; then
SSH_COMP=-C
else
SSH_COMP=
fi
## Ignore SSH known host verification
if [ "$SSH_IGNORE_KNOWN_HOSTS" == "yes" ]; then
SSH_OPTS="-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
fi
## Support for older config files without RSYNC_EXECUTABLE option
if [ "$RSYNC_EXECUTABLE" == "" ]; then
RSYNC_EXECUTABLE=rsync
fi
## Sudo execution option
if [ "$SUDO_EXEC" == "yes" ]; then
if [ "$RSYNC_REMOTE_PATH" != "" ]; then
RSYNC_PATH="sudo $RSYNC_REMOTE_PATH/$RSYNC_EXECUTABLE"
else
RSYNC_PATH="sudo $RSYNC_EXECUTABLE"
fi
COMMAND_SUDO="sudo"
else
if [ "$RSYNC_REMOTE_PATH" != "" ]; then
RSYNC_PATH="$RSYNC_REMOTE_PATH/$RSYNC_EXECUTABLE"
else
RSYNC_PATH="$RSYNC_EXECUTABLE"
fi
COMMAND_SUDO=""
fi
## Set rsync default arguments
RSYNC_ARGS="-rltD"
if [ "$_DRYRUN" -eq 1 ]; then
RSYNC_DRY_ARG="-n"
DRY_WARNING="/!\ DRY RUN"
else
RSYNC_DRY_ARG=""
fi
RSYNC_ATTR_ARGS=""
if [ "$PRESERVE_PERMISSIONS" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -p"
fi
if [ "$PRESERVE_OWNER" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -o"
fi
if [ "$PRESERVE_GROUP" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -g"
fi
if [ "$PRESERVE_ACL" == "yes" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -A"
fi
if [ "$PRESERVE_XATTR" == "yes" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -X"
fi
if [ "$RSYNC_COMPRESS" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" -z"
fi
if [ "$COPY_SYMLINKS" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" -L"
fi
if [ "$KEEP_DIRLINKS" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" -K"
fi
if [ "$PRESERVE_HARDLINKS" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" -H"
fi
if [ "$CHECKSUM" == "yes" ]; then
RSYNC_TYPE_ARGS=$RSYNC_TYPE_ARGS" --checksum"
fi
if [ "$BANDWIDTH" != "" ] && [ "$BANDWIDTH" != "0" ]; then
RSYNC_ARGS=$RSYNC_ARGS" --bwlimit=$BANDWIDTH"
fi
if [ "$PARTIAL" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" --partial --partial-dir=\"$PARTIAL_DIR\""
RSYNC_PARTIAL_EXCLUDE="--exclude=\"$PARTIAL_DIR\""
fi
if [ "$DELTA_COPIES" != "no" ]; then
RSYNC_ARGS=$RSYNC_ARGS" --no-whole-file"
else
RSYNC_ARGS=$RSYNC_ARGS" --whole-file"
fi
## Set compression executable and extension
COMPRESSION_LEVEL=3
if type xz > /dev/null 2>&1
then
COMPRESSION_PROGRAM="| xz -$COMPRESSION_LEVEL"
COMPRESSION_EXTENSION=.xz
elif type lzma > /dev/null 2>&1
then
COMPRESSION_PROGRAM="| lzma -$COMPRESSION_LEVEL"
COMPRESSION_EXTENSION=.lzma
elif type pigz > /dev/null 2>&1
then
COMPRESSION_PROGRAM="| pigz -$COMPRESSION_LEVEL"
COMPRESSION_EXTENSION=.gz
# obackup specific
COMPRESSION_OPTIONS=--rsyncable
elif type gzip > /dev/null 2>&1
then
COMPRESSION_PROGRAM="| gzip -$COMPRESSION_LEVEL"
COMPRESSION_EXTENSION=.gz
# obackup specific
COMPRESSION_OPTIONS=--rsyncable
else
COMPRESSION_PROGRAM=
COMPRESSION_EXTENSION=
fi
ALERT_LOG_FILE="$ALERT_LOG_FILE$COMPRESSION_EXTENSION"
}
function PostInit {
# Define remote commands
SSH_CMD="$(type -p ssh) $SSH_COMP -i $SSH_RSA_PRIVATE_KEY $SSH_OPTS $REMOTE_USER@$REMOTE_HOST -p $REMOTE_PORT"
SCP_CMD="$(type -p scp) $SSH_COMP -i $SSH_RSA_PRIVATE_KEY -P $REMOTE_PORT"
RSYNC_SSH_CMD="$(type -p ssh) $SSH_COMP -i $SSH_RSA_PRIVATE_KEY $SSH_OPTS -p $REMOTE_PORT"
}
function InitLocalOSSettings {
## If running under Msys, some commands do not run the same way
## Using mingw version of find instead of windows one
## Getting running processes is quite different
## Ping command is not the same
if [ "$LOCAL_OS" == "msys" ]; then
FIND_CMD=$(dirname $BASH)/find
PING_CMD='$SYSTEMROOT\system32\ping -n 2'
else
FIND_CMD=find
PING_CMD="ping -c 2 -i .2"
fi
## Stat command has different syntax on Linux and FreeBSD/MacOSX
if [ "$LOCAL_OS" == "MacOSX" ] || [ "$LOCAL_OS" == "BSD" ]; then
STAT_CMD="stat -f \"%Sm\""
STAT_CTIME_MTIME_CMD="stat -f %N;%c;%m"
else
STAT_CMD="stat --format %y"
STAT_CTIME_MTIME_CMD="stat -c %n;%Z;%Y"
fi
}
function InitRemoteOSSettings {
#TODO: fix add -E when both initiator and targets don't run MacOSX and PRESERVE_EXECUTABILITY=yes
## MacOSX does not use the -E parameter like Linux or BSD does (-E is mapped to extended attrs instead of preserve executability)
if [ "$PRESERVE_EXECUTABILITY" != "no" ];then
if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -E"
fi
fi
if [ "$REMOTE_OS" == "msys" ]; then
REMOTE_FIND_CMD=$(dirname $BASH)/find
else
REMOTE_FIND_CMD=find
fi
## Stat command has different syntax on Linux and FreeBSD/MacOSX
if [ "$LOCAL_OS" == "MacOSX" ] || [ "$LOCAL_OS" == "BSD" ]; then
REMOTE_STAT_CMD="stat -f \"%Sm\""
REMOTE_STAT_CTIME_MTIME_CMD="stat -f \\\"%N;%c;%m\\\""
else
REMOTE_STAT_CMD="stat --format %y"
REMOTE_STAT_CTIME_MTIME_CMD="stat -c \\\"%n;%Z;%Y\\\""
fi
}
## IFS debug function
function PrintIFS {
printf "IFS is: %q" "$IFS"
}
## END Generic functions
_LOGGER_PREFIX="time"
## Working directory. This directory exists in any replica and contains state files, backups, soft deleted files etc
OSYNC_DIR=".osync_workdir"
function TrapStop {
if [ $SOFT_STOP -eq 0 ]; then
Logger " /!\ WARNING: Manual exit of osync is really not recommended. Sync will be in inconsistent state." "WARN"
Logger " /!\ WARNING: If you are sure, please hit CTRL+C another time to quit." "WARN"
SOFT_STOP=1
return 1
fi
if [ $SOFT_STOP -eq 1 ]; then
Logger " /!\ WARNING: CTRL+C hit twice. Exiting osync. Please wait while replicas get unlocked..." "WARN"
SOFT_STOP=2
exit 2
fi
}
function TrapQuit {
local exitcode
if [ $ERROR_ALERT -ne 0 ]; then
UnlockReplicas
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with errors." "ERROR"
exitcode=1
elif [ $WARN_ALERT -ne 0 ]; then
UnlockReplicas
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with warnings." "WARN"
exitcode=2 # Warning exit code must not force daemon mode to quit
else
UnlockReplicas
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished." "NOTICE"
exitcode=0
fi
KillChilds $$ > /dev/null 2>&1
exit $exitcode
}
function CheckEnvironment {
if [ "$REMOTE_OPERATION" == "yes" ]; then
if ! type ssh > /dev/null 2>&1 ; then
Logger "ssh not present. Cannot start sync." "CRITICAL"
exit 1
fi
fi
if ! type rsync > /dev/null 2>&1 ; then
Logger "rsync not present. Sync cannot start." "CRITICAL"
exit 1
fi
}
function CheckCurrentConfig {
if [ "$INSTANCE_ID" == "" ]; then
Logger "No INSTANCE_ID defined in config file." "CRITICAL"
exit 1
fi
if [ "$INITIATOR_SYNC_DIR" == "" ]; then
Logger "No INITIATOR_SYNC_DIR set in config file." "CRITICAL"
exit 1
fi
if [ "$TARGET_SYNC_DIR" == "" ]; then
Logger "Not TARGET_SYNC_DIR set in config file." "CRITICAL"
exit 1
fi
# Check all variables that should contain "yes" or "no"
declare -a yes_no_vars=(CREATE_DIRS SUDO_EXEC SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS CHECKSUM RSYNC_COMPRESS CONFLICT_BACKUP CONFLICT_BACKUP_MULTIPLE SOFT_DELETE RESUME_SYNC FORCE_STRANGER_LOCK_RESUME PARTIAL DELTA_COPIES STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
for i in "${yes_no_vars[@]}"; do
test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file. Correct your config file or update it using the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
# Check all variables that should contain a numerical value >= 0
declare -a num_vars=(MINIMUM_SPACE BANDWIDTH SOFT_MAX_EXEC_TIME HARD_MAX_EXEC_TIME KEEP_LOGGING MIN_WAIT MAX_WAIT CONFLICT_BACKUP_DAYS SOFT_DELETE_DAYS RESUME_TRY MAX_EXEC_TIME_PER_CMD_BEFORE MAX_EXEC_TIME_PER_CMD_AFTER)
for i in "${num_vars[@]}"; do
test="if [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file. Correct your config file or update it using the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
#TODO(low): Add runtime variable tests (RSYNC_ARGS etc)
}
###### Osync specific functions (non shared)
function _CheckReplicaPathsLocal {
local replica_path="${1}"
if [ ! -w "$replica_path" ]; then
Logger "Local replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
if [ ! -d "$replica_path" ]; then
if [ "$CREATE_DIRS" == "yes" ]; then
$COMMAND_SUDO mkdir -p "$replica_path" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot create local replica path [$replica_path]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)"
exit 1
else
Logger "Created local replica path [$replica_path]." "NOTICE"
fi
else
Logger "Local replica path [$replica_path] does not exist." "CRITICAL"
exit 1
fi
fi
}
function _CheckReplicaPathsRemote {
local replica_path="${1}"
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ ! -w \"'$replica_path'\" ];then exit 1; fi" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Remote replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
cmd=$SSH_CMD' "if ! [ -d \"'$replica_path'\" ]; then if [ \"'$CREATE_DIRS'\" == \"yes\" ]; then '$COMMAND_SUDO' mkdir -p \"'$replica_path'\"; fi; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot create remote replica path [$replica_path]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
}
function CheckReplicaPaths {
local pids
#INITIATOR_SYNC_DIR_CANN=$(realpath "${INITIATOR[1]}") #TODO(verylow): investigate realpath & readlink issues on MSYS and busybox here
#TARGET_SYNC_DIR_CANN=$(realpath "${TARGET[1]})
#if [ "$REMOTE_OPERATION" != "yes" ]; then
# if [ "$INITIATOR_SYNC_DIR_CANN" == "$TARGET_SYNC_DIR_CANN" ]; then
# Logger "Master directory [${INITIATOR[1]}] cannot be the same as target directory." "CRITICAL"
# exit 1
# fi
#fi
_CheckReplicaPathsLocal "${INITIATOR[1]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckReplicaPathsLocal "${TARGET[1]}" &
pids="$pids;$!"
else
_CheckReplicaPathsRemote "${TARGET[1]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
}
function _CheckDiskSpaceLocal {
local replica_path="${1}"
local disk_space
Logger "Checking minimum disk space in [$replica_path]." "NOTICE"
disk_space=$(df -P "$replica_path" | tail -1 | awk '{print $4}')
if [ $disk_space -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($disk_space KB)." "WARN"
fi
}
function _CheckDiskSpaceRemote {
local replica_path="${1}"
Logger "Checking minimum disk space on target [$replica_path]." "NOTICE"
local cmd
local disk_space
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "'$COMMAND_SUDO' df -P \"'$replica_path'\"" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot get free space on target [$replica_path]." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
disk_space=$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID | tail -1 | awk '{print $4}')
if [ $disk_space -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($disk_space KB)." "WARN"
fi
fi
}
function CheckDiskSpace {
local pids
if [ $MINIMUM_SPACE -eq 0 ]; then
Logger "Skipped minimum space check." "NOTICE"
return 0
fi
_CheckDiskSpaceLocal "${INITIATOR[1]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckDiskSpaceLocal "${TARGET[1]}" &
pids="$pids;$!"
else
_CheckDiskSpaceRemote "${TARGET[1]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
}
function _CreateStateDirsLocal {
local replica_state_dir="${1}"
if ! [ -d "$replica_state_dir" ]; then
$COMMAND_SUDO mkdir -p "$replica_state_dir" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot create state dir [$replica_state_dir]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
fi
}
function _CreateStateDirsRemote {
local replica_state_dir="${1}"
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if ! [ -d \"'$replica_state_dir'\" ]; then '$COMMAND_SUDO' mkdir -p \"'$replica_state_dir'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot create remote state dir [$replica_state_dir]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
}
function CreateStateDirs {
local pids
_CreateStateDirsLocal "${INITIATOR[1]}${INITIATOR[3]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CreateStateDirsLocal "${TARGET[1]}${TARGET[3]}" &
pids="$pids;$!"
else
_CreateStateDirsRemote "${TARGET[1]}${TARGET[3]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
}
function _CheckLocksLocal {
local lockfile="${1}"
local lockfile_content
local lock_pid
local lock_instance_id
if [ -f "$lockfile" ]; then
lockfile_content=$(cat $lockfile)
Logger "Master lock pid present: $lockfile_content" "DEBUG"
lock_pid=${lockfile_content%@*}
lock_instance_id=${lockfile_content#*@}
kill -9 $lock_pid > /dev/null 2>&1
if [ $? != 0 ]; then
Logger "There is a dead osync lock in [$lockfile]. Instance [$lock_pid] no longer running. Resuming." "NOTICE"
else
Logger "There is already a local instance of osync running [$lock_pid] for this replica. Cannot start." "CRITICAL"
exit 1
fi
fi
}
function _CheckLocksRemote {
local lockfile="${1}"
local cmd
local lock_pid
local lock_instance_id
local lockfile_content
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ -f \"'$lockfile'\" ]; then cat \"'$lockfile'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'"'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
lockfile_content=$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)
else
Logger "Cannot get remote lockfile." "CRITICAL"
exit 1
fi
fi
lock_pid=${lockfile_content%@*}
lock_instance_id=${lockfile_content#*@}
if [ "$lock_pid" != "" ] && [ "$lock_instance_id" != "" ]; then
Logger "Remote lock is: $lock_pid@$lock_instance_id" "DEBUG"
kill -0 $lock_pid > /dev/null 2>&1
if [ $? != 0 ]; then
if [ "$lock_instance_id" == "$INSTANCE_ID" ]; then
Logger "There is a dead osync lock on target replica that corresponds to this initiator sync id [$lock_instance_id]. Instance [$lock_pid] no longer running. Resuming." "NOTICE"
else
if [ "$FORCE_STRANGER_LOCK_RESUME" == "yes" ]; then
Logger "WARNING: There is a dead osync lock on target replica that does not correspond to this initiator sync-id [$lock_instance_id]. Forcing resume." "WARN"
else
Logger "There is a dead osync lock on target replica that does not correspond to this initiator sync-id [$lock_instance_id]. Will not resume." "CRITICAL"
exit 1
fi
fi
else
Logger "There is already a local instance of osync that locks target replica [$lock_pid@$lock_instance_id]. Cannot start." "CRITICAL"
exit 1
fi
fi
}
function CheckLocks {
local pids
if [ $_NOLOCKS -eq 1 ]; then
return 0
fi
# Do not bother checking for locks when FORCE_UNLOCK is set
if [ $FORCE_UNLOCK -eq 1 ]; then
WriteLockFiles
if [ $? != 0 ]; then
exit 1
fi
fi
_CheckLocksLocal "${INITIATOR[2]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckLocksLocal "${TARGET[2]}" &
pids="$pids;$!"
else
_CheckLocksRemote "${TARGET[2]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
WriteLockFiles
}
function _WriteLockFilesLocal {
local lockfile="${1}"
$COMMAND_SUDO echo "$SCRIPT_PID@$INSTANCE_ID" > "$lockfile"
if [ $? != 0 ]; then
Logger "Could not create lock file [$lockfile]." "CRITICAL"
exit 1
else
Logger "Locked replica on [$lockfile]." "DEBUG"
fi
}
function _WriteLockFilesRemote {
local lockfile="${1}"
local cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "echo '$SCRIPT_PID@$INSTANCE_ID' | '$COMMAND_SUDO' tee \"'$lockfile'\"" > /dev/null 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Could not set lock on remote $replica_type replica." "CRITICAL"
exit 1
else
Logger "Locked remote $replica_type replica." "DEBUG"
fi
}
function WriteLockFiles {
local pids
_WriteLockFilesLocal "${INITIATOR[2]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_WriteLockFilesLocal "${TARGET[2]}" &
pids="$pids;$!"
else
_WriteLockFilesRemote "${TARGET[2]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
LOCK_FILES_EXIST=1
}
function _UnlockReplicasLocal {
local lockfile="${1}"
if [ -f "$lockfile" ]; then
$COMMAND_SUDO rm "$lockfile"
if [ $? != 0 ]; then
Logger "Could not unlock local replica." "ERROR"
else
Logger "Removed local replica lock." "DEBUG"
fi
fi
}
function _UnlockReplicasRemote {
local lockfile="${1}"
local cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ -f \"'$lockfile'\" ]; then '$COMMAND_SUDO' rm -f \"'$lockfile'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Could not unlock remote replica." "ERROR"
Logger "Command Output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Removed remote replica lock." "DEBUG"
fi
}
function UnlockReplicas {
local pids
if [ $_NOLOCKS -eq 1 ] || [ $LOCK_FILES_EXIST -eq 0 ]; then
return 0
fi
_UnlockReplicasLocal "${INITIATOR[2]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_UnlockReplicasLocal "${TARGET[2]}" &
pids="$pids;$!"
else
_UnlockReplicasRemote "${TARGET[2]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
}
###### Sync core functions
## Rsync does not like spaces in directory names, considering it as two different directories. Handling this schema by escaping space.
## It seems this only happens when trying to execute an rsync command through weval $rsync_cmd on a remote host.
## So I am using unescaped $INITIATOR_SYNC_DIR for local rsync calls and escaped $ESC_INITIATOR_SYNC_DIR for remote rsync calls like user@host:$ESC_INITIATOR_SYNC_DIR
## The same applies for target sync dir..............................................T.H.I.S..I.S..A..P.R.O.G.R.A.M.M.I.N.G..N.I.G.H.T.M.A.R.E
function tree_list {
local replica_path="${1}" # path to the replica for which a tree needs to be constructed
local replica_type="${2}" # replica type: initiator, target
local tree_filename="${3}" # filename to output tree (will be prefixed with $replica_type)
local escaped_replica_path
local rsync_cmd
#WIP
#if [ "$replica_type" == "${INITIATOR[0]}" ]; then
# exit 12
#fi
escaped_replica_path=$(EscapeSpaces "$replica_path")
Logger "Creating $replica_type replica file list [$replica_path]." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ] && [ "$replica_type" == "${TARGET[0]}" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE -e \"$RSYNC_SSH_CMD\" --list-only $REMOTE_USER@$REMOTE_HOST:\"$escaped_replica_path/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID\""
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --list-only \"$replica_path/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID\""
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
## Redirect commands stderr here to get rsync stderr output in logfile with eval "$rsync_cmd" 2>> "$LOG_FILE"
## When log writing fails, $! is empty and WaitForTaskCompletion fails. Removing the 2>> log
eval "$rsync_cmd"
retval=$?
## Retval 24 = some files vanished while creating list
if ([ $retval == 0 ] || [ $retval == 24 ]) && [ -f "$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID" ]; then
mv -f "$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID" "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_filename"
return $?
else
Logger "Cannot create replica file list in [$replica_path]." "CRITICAL"
return $retval
fi
}
# delete_list(replica, tree-file-after, tree-file-current, deleted-list-file, deleted-failed-list-file): Creates a list of files vanished from last run on replica $1 (initiator/target)
function delete_list {
local replica_type="${1}" # replica type: initiator, target
local tree_file_after="${2}" # tree-file-after, will be prefixed with replica type
local tree_file_current="${3}" # tree-file-current, will be prefixed with replica type
local deleted_list_file="${4}" # file containing deleted file list, will be prefixed with replica type
local deleted_failed_list_file="${5}" # file containing files that could not be deleted on last run, will be prefixed with replica type
local cmd
Logger "Creating $replica_type replica deleted file list." "NOTICE"
if [ -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX" ]; then
## Same functionnality, comm is much faster than grep but is not available on every platform
if type comm > /dev/null 2>&1 ; then
cmd="comm -23 \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_file_current\" > \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file\""
else
## The || : forces the command to have a good result
cmd="(grep -F -x -v -f \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_file_current\" \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" || :) > \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file\""
fi
Logger "CMD: $cmd" "DEBUG"
eval "$cmd" 2>> "$LOG_FILE"
retval=$?
# Add delete failed file list to current delete list and then empty it
if [ -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file" ]; then
cat "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file" >> "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file"
rm -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file"
fi
return $retval
else
touch "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file"
return $retval
fi
}
function _get_file_ctime_mtime_local {
local replica_path="${1}" # Contains replica path
local replica_type="${2}" # Initiator / Target
local file_list="${3}" # Contains list of files to get time attrs
echo -n "" > "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID"
while read -r file; do $STAT_CTIME_MTIME_CMD "$replica_path$file" | sort >> "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID"; done < "$file_list"
}
function _get_file_ctime_mtime_remote {
local replica_path="${1}" # Contains replica path
local replica_type="${2}"
local file_list="${3}"
local cmd
cmd='cat "'$file_list'" | '$SSH_CMD' "while read -r file; do '$REMOTE_STAT_CTIME_MTIME_CMD' \"'$replica_path'\$file\"; done | sort" > "'$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID'"'
Logger "CMD: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Getting file attributes failed [$retval] on $replica_type. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID)" "NOTICE"
fi
exit 1
fi
}
# rsync does sync with mtime, but file attribute modifications only change ctime.
# Hence, detect newer ctime on the replica that gets updated first with CONFLICT_PREVALANCE and update all newer file attributes on this replica before real update
function sync_attrs {
local initiator_replica="${1}"
local target_replica="${2}"
local delete_list_filename="$DELETED_LIST_FILENAME" # Contains deleted list filename, will be prefixed with replica type
local rsync_cmd
local retval
Logger "Getting list of files that need updates." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -i -n -8 $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_PARTIAL_EXCLUDE -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE \"$initiator_replica\" $REMOTE_USER@$REMOTE_HOST:\"$target_replica\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -i -n -8 $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_PARTIAL_EXCLUDE --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE \"$initiator_replica\" \"$target_replica\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
#WIP: return retval from process instead of err count if only one pid is tested
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Getting list of files that need updates failed [$retval]. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
exit 1 #WIP: check why exit $retval was used
else
cat "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | ( grep -Ev "^[^ ]*(c|s|t)[^ ]* " || :) | ( grep -E "^[^ ]*(p|o|g|a)[^ ]* " || :) | sed -e 's/^[^ ]* //' >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID"
if [ $? != 0 ]; then
Logger "Cannot prepare file list for attribute sync." "CRITICAL"
exit 1
fi
fi
Logger "Getting ctimes for pending files on initiator." "NOTICE"
_get_file_ctime_mtime_local "${INITIATOR[1]}" "${INITIATOR[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$!"
Logger "Getting ctimes for pending files on target." "NOTICE"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_get_file_ctime_mtime_local "${TARGET[1]}" "${TARGET[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$pids;$!"
else
_get_file_ctime_mtime_remote "${TARGET[1]}" "${TARGET[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 1800 0 ${FUNCNAME[0]} true $KEEP_LOGGING
# If target gets updated first, then sync_attr must update initiator's attrs first
# For join, remove leading replica paths
sed -i'.tmp' "s;^${INITIATOR[1]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$SCRIPT_PID"
sed -i'.tmp' "s;^${TARGET[1]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID"
if [ "$CONFLICT_PREVALANCE" == "${TARGET[0]}" ]; then
local source_dir="${INITIATOR[1]}"
local esc_source_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_dir="${TARGET[1]}"
local esc_dest_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_replica="${TARGET[0]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID" | awk -F';' '{if ($2 > $3) print $1}' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID"
else
local source_dir="${TARGET[1]}"
local esc_source_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_dir="${INITIATOR[1]}"
local esc_dest_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_replica="${INITIATOR[0]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$SCRIPT_PID" | awk -F';' '{if ($2 > $3) print $1}' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID"
fi
if [ $(wc -l < "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID") -eq 0 ]; then
Logger "Updating file attributes on $dest_replica not required" "NOTICE"
return 0
fi
Logger "Updating file attributes on $dest_replica." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
# No rsync args (hence no -r) because files are selected with --from-file
if [ "$dest_replica" == "${INITIATOR[0]}" ]; then
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_dir\" \"$dest_dir\" >> $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$source_dir\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir\" >> $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
fi
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$source_dir\" \"$dest_dir\" >> $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
#WIP: the same
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating file attributes on $dest_replica [$retval]. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID)" "NOTICE"
fi
exit 1 #WIP check why exit $retval was used
else
Logger "Successfully updated file attributes on $dest_replica replica." "NOTICE"
fi
}
# sync_update(source replica, destination replica, delete_list_filename)
function sync_update {
local source_replica="${1}" # Contains replica type of source: initiator, target
local destination_replica="${2}" # Contains replica type of destination: initiator, target
local delete_list_filename="${3}" # Contains deleted list filename, will be prefixed with replica type
local rsync_cmd
local retval
Logger "Updating $destination_replica replica." "NOTICE"
if [ "$source_replica" == "${INITIATOR[0]}" ]; then
local source_dir="${INITIATOR[1]}"
local esc_source_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_dir="${TARGET[1]}"
local esc_dest_dir=$(EscapeSpaces "${TARGET[1]}")
local backup_args="$TARGET_BACKUP"
else
local source_dir="${TARGET[1]}"
local esc_source_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_dir="${INITIATOR[1]}"
local esc_dest_dir=$(EscapeSpaces "${INITIATOR[1]}")
local backup_args="$INITIATOR_BACKUP"
fi
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ "$source_replica" == "${INITIATOR[0]}" ]; then
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" \"$source_dir\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir\" >> $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_dir\" \"$dest_dir\" >> $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1"
fi
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" \"$source_dir\" \"$dest_dir\" >> $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating $destination_replica replica failed. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID)" "NOTICE"
fi
exit 1 #WIP exit $retval
else
Logger "Updating $destination_replica replica succeded." "NOTICE"
return 0
fi
}
# delete_local(replica dir, delete file list, delete dir, delete failed file)
function _delete_local {
local replica_dir="${1}" # Full path to replica
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deletion_dir="${3}" # deletion dir in format .[workdir]/deleted
local deleted_failed_list_file="${4}" # file containing files that could not be deleted on last run, will be prefixed with replica type
local parentdir
local previous_file=""
if [ -d "$replica_dir$deletion_dir" ] && [ $_DRYRUN -ne 1 ]; then
$COMMAND_SUDO mkdir -p "$replica_dir$deletion_dir"
fi
while read -r files; do
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
if [ $_VERBOSE -eq 1 ]; then
Logger "Soft deleting $replica_dir$files" "NOTICE"
fi
if [ "$SOFT_DELETE" != "no" ]; then
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$replica_dir$deletion_dir/$files" ]; then
rm -rf "${replica_dir:?}$deletion_dir/$files"
fi
if [ -e "$replica_dir$files" ]; then
# In order to keep full path on soft deletion, create parent directories before move
parentdir="$(dirname "$files")"
if [ "$parentdir" != "." ]; then
mkdir -p "$replica_dir$deletion_dir/$parentdir"
mv -f "$replica_dir$files" "$replica_dir$deletion_dir/$parentdir"
else
mv -f "$replica_dir$files" "$replica_dir$deletion_dir"
fi
if [ $? != 0 ]; then
Logger "Cannot move $replica_dir$files to deletion directory." "ERROR"
echo "$files" >> "${INITIATOR[1]}${INITIATOR[3]}/$deleted_failed_list_file"
fi
fi
fi
else
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$replica_dir$files" ]; then
rm -rf "$replica_dir$files"
if [ $? != 0 ]; then
Logger "Cannot delete $replica_dir$files" "ERROR"
echo "$files" >> "${INITIATOR[1]}${INITIATOR[3]}/$deleted_failed_list_file"
fi
fi
fi
fi
previous_file="$files"
fi
done < "${INITIATOR[1]}${INITIATOR[3]}/$deleted_list_file"
}
function _delete_remote {
local replica_dir="${1}" # Full path to replica
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deletion_dir="${3}" # deletion dir in format .[workdir]/deleted
local deleted_failed_list_file="${4}" # file containing files that could not be deleted on last run, will be prefixed with replica type
local esc_dest_dir
local rsync_cmd
## This is a special coded function. Need to redelcare local functions on remote host, passing all needed variables as escaped arguments to ssh command.
## Anything beetween << ENDSSH and ENDSSH will be executed remotely
# Additionnaly, we need to copy the deletetion list to the remote state folder
esc_dest_dir="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}")"
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" \"${INITIATOR[1]}${INITIATOR[3]}/$deleted_list_file\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir/\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID 2>&1"
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd" 2>> "$LOG_FILE"
if [ $? != 0 ]; then
Logger "Cannot copy the deletion list to remote replica." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID" ]; then
Logger "$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID)" "ERROR"
fi
exit 1
fi
#TODO(critical): check output file without & and sleep 5
$SSH_CMD ERROR_ALERT=0 sync_on_changes=$sync_on_changes _SILENT=$_SILENT _DEBUG=$_DEBUG _DRYRUN=$_DRYRUN _VERBOSE=$_VERBOSE COMMAND_SUDO=$COMMAND_SUDO FILE_LIST="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}/$deleted_list_file")" REPLICA_DIR="$(EscapeSpaces "$replica_dir")" SOFT_DELETE=$SOFT_DELETE DELETE_DIR="$(EscapeSpaces "$deletion_dir")" FAILED_DELETE_LIST="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}/$deleted_failed_list_file")" 'bash -s' << 'ENDSSH' >> "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" 2>&1
## The following lines are executed remotely
function _logger {
local value="${1}" # What to log
echo -e "$value" >&2 #TODO(high): logfile output missing
if [ $_SILENT -eq 0 ]; then
echo -e "$value"
fi
}
function Logger {
local value="${1}" # What to log
local level="${2}" # Log level: DEBUG, NOTICE, WARN, ERROR, CRITIAL
local prefix="RTIME: $SECONDS - "
if [ "$level" == "CRITICAL" ]; then
_logger "$prefix\e[41m$value\e[0m"
ERROR_ALERT=1
elif [ "$level" == "ERROR" ]; then
_logger "$prefix\e[91m$value\e[0m"
ERROR_ALERT=1
elif [ "$level" == "WARN" ]; then
_logger "$prefix\e[93m$value\e[0m"
elif [ "$level" == "NOTICE" ]; then
_logger "$prefix$value"
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == "yes" ]; then
_logger "$prefix$value"
fi
else
_logger "\e[41mLogger function called without proper loglevel.\e[0m"
_logger "$prefix$value"
fi
}
## Empty earlier failed delete list
> "$FAILED_DELETE_LIST"
parentdir=
previous_file=""
if [ -d "$replica_dir$deletion_dir" ] && [ $_DRYRUN -ne 1 ]; then
$COMMAND_SUDO mkdir -p "$replica_dir$deletion_dir"
fi
while read -r files; do
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
if [ $_VERBOSE -eq 1 ]; then
Logger "Soft deleting $REPLICA_DIR$files" "NOTICE"
fi
if [ "$SOFT_DELETE" != "no" ]; then
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$REPLICA_DIR$DELETE_DIR/$files" ]; then
$COMMAND_SUDO rm -rf "$REPLICA_DIR$DELETE_DIR/$files"
fi
if [ -e "$REPLICA_DIR$files" ]; then
# In order to keep full path on soft deletion, create parent directories before move
parentdir="$(dirname "$files")"
if [ "$parentdir" != "." ]; then
$COMMAND_SUDO mkdir -p "$REPLICA_DIR$DELETE_DIR/$parentdir"
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETE_DIR/$parentdir"
else
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETE_DIR"
fi
if [ $? != 0 ]; then
Logger "Cannot move $REPLICA_DIR$files to deletion directory." "ERROR"
echo "$files" >> "$FAILED_DELETE_LIST"
fi
fi
fi
else
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$REPLICA_DIR$files" ]; then
$COMMAND_SUDO rm -rf "$REPLICA_DIR$files"
if [ $? != 0 ]; then
Logger "Cannot delete $REPLICA_DIR$files" "ERROR"
echo "$files" >> "$FAILED_DELETE_LIST"
fi
fi
fi
fi
previous_file="$files"
fi
done < "$FILE_LIST"
ENDSSH
## Copy back the deleted failed file list
esc_source_file="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}/$deleted_failed_list_file")"
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_file\" \"${INITIATOR[1]}${INITIATOR[3]}\" > \"$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID\""
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd" 2>> "$LOG_FILE"
result=$?
if [ $result != 0 ]; then
Logger "Cannot copy back the failed deletion list to initiator replica." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID" ]; then
Logger "Comand output: $(cat $RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID)" "NOTICE"
fi
exit 1 #WIP exit $retval
fi
return 0
}
# delete_propagation(replica name, deleted_list_filename, deleted_failed_file_list)
function deletion_propagation {
local replica_type="${1}" # Contains replica type: initiator, target
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deleted_failed_list_file="${3}" # file containing files that could not be deleted on last run, will be prefixed with replica type
local replica_dir
local delete_dir
Logger "Propagating deletions to $replica_type replica." "NOTICE"
if [ "$replica_type" == "${INITIATOR[0]}" ]; then
replica_dir="${INITIATOR[1]}"
delete_dir="${INITIATOR[5]}"
_delete_local "$replica_dir" "${TARGET[0]}$deleted_list_file" "$delete_dir" "${TARGET[0]}$deleted_failed_list_file"
retval=$?
if [ $retval != 0 ]; then
Logger "Deletion on replica $replica_type failed." "CRITICAL"
exit 1
fi
else
replica_dir="${TARGET[1]}"
delete_dir="${TARGET[5]}"
if [ "$REMOTE_OPERATION" == "yes" ]; then
_delete_remote "$replica_dir" "${INITIATOR[0]}$deleted_list_file" "$delete_dir" "${INITIATOR[0]}$deleted_failed_list_file"
else
_delete_local "$replica_dir" "${INITIATOR[0]}$deleted_list_file" "$delete_dir" "${INITIATOR[0]}$deleted_failed_list_file"
fi
retval=$?
if [ $retval == 0 ]; then
if [ -f "$RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID" ] && [ $_VERBOSE -eq 1 ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID)" "DEBUG"
fi
return $retval
else
Logger "Deletion on remote system failed." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID)" "CRITICAL"
fi
exit 1
fi
fi
}
###### Sync function in 6 steps
######
###### Step 0a & 0b: Create current file list of replicas
###### Step 1a & 1b: Create deleted file list of replicas
###### Step 3: Update file attributes
###### Step 3a & 3b: Update replicas
###### Step 4a & 4b: Propagate deletions on replicas
###### Step 5a & 5b: Create after run file list of replicas
function Sync {
local resumeCount
local resumeInitiator
local resumeTarget
local initiatorPid
local targetPid
local initiatorFail
local targetFail
Logger "Starting synchronization task." "NOTICE"
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ "$RESUME_SYNC" != "no" ]; then
if [ -f "${INITIATOR[9]}" ]; then
resumeCount=$(cat "${INITIATOR[9]}")
else
resumeCount=0
fi
if [ $resumeCount -lt $RESUME_TRY ]; then
if [ -f "${INITIATOR[7]}" ]; then
resumeInitiator=$(cat "${INITIATOR[7]}")
else
resumeInitiator="synced"
fi
if [ -f "${INITIATOR[8]}" ]; then
resumeTarget=$(cat "${INITIATOR[8]}")
else
resumeTarget="synced"
fi
if [ "$resumeInitiator" != "synced" ]; then
Logger "WARNING: Trying to resume aborted execution on $($STAT_CMD "${INITIATOR[7]}") at task [$resumeInitiator] for initiator. [$resumeCount] previous tries." "WARN"
echo $(($resumeCount+1)) > "${INITIATOR[9]}"
else
resumeInitiator="none"
fi
if [ "$resumeTarget" != "synced" ]; then
Logger "WARNING: Trying to resume aborted execution on $($STAT_CMD "${INITIATOR[8]}") as task [$resumeTarget] for target. [$resumeCount] previous tries." "WARN"
echo $(($resumeCount+1)) > "${INITIATOR[9]}"
else
resumeTarget="none"
fi
else
Logger "Will not resume aborted execution. Too many resume tries [$resumeCount]." "WARN"
echo "0" > "${INITIATOR[9]}"
resumeInitiator="none"
resumeTarget="none"
fi
else
resumeInitiator="none"
resumeTarget="none"
fi
################################################################################################################################################# Actual sync begins here
## Step 0a & 0b
if [ "$resumeInitiator" == "none" ] || [ "$resumeTarget" == "none" ] || [ "$resumeInitiator" == "${SYNC_ACTION[0]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[0]}" ]; then
if [ "$resumeInitiator" == "none" ] || [ "$resumeInitiator" == "${SYNC_ACTION[0]}" ]; then
tree_list "${INITIATOR[1]}" "${INITIATOR[0]}" "$TREE_CURRENT_FILENAME" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "none" ] || [ "$resumeTarget" == "${SYNC_ACTION[0]}" ]; then
tree_list "${TARGET[1]}" "${TARGET[0]}" "$TREE_CURRENT_FILENAME" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ $pid == $initiatorPid ]; then
echo "${SYNC_ACTION[0]}" > "${INITIATOR[7]}"
initiatorFail=true
elif [ $pid == $targetPid ]; then
echo "${SYNC_ACTION[0]}" > "${INITIATOR[8]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[7]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[8]}"
fi
exit 1
else
echo "${SYNC_ACTION[1]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[1]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[1]}"
resumeTarget="${SYNC_ACTION[1]}"
fi
fi
## Step 1a & 1b
if [ "$resumeInitiator" == "${SYNC_ACTION[1]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[1]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[1]}" ]; then
delete_list "${INITIATOR[0]}" "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[1]}" ]; then
delete_list "${TARGET[0]}" "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ $pid == $initiatorPid ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[7]}"
initiatorFail=true
elif [ $pid == $targetPid ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[8]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[7]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[8]}"
fi
exit 1
else
echo "${SYNC_ACTION[2]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[2]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[2]}"
resumeTarget="${SYNC_ACTION[2]}"
fi
fi
## Step 2
if [ "$resumeInitiator" == "${SYNC_ACTION[2]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[2]}" ]; then
if [ "$RSYNC_ATTR_ARGS" != "" ]; then
sync_attrs "${INITIATOR[1]}" "$TARGET_SYNC_DIR"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[2]}" > "${INITIATOR[8]}"
exit 1
else
echo "${SYNC_ACTION[3]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[3]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[3]}"
resumeTarget="${SYNC_ACTION[3]}"
fi
else
echo "${SYNC_ACTION[3]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[3]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[3]}"
resumeTarget="${SYNC_ACTION[3]}"
fi
fi
## Step 3a & 3b
if [ "$resumeInitiator" == "${SYNC_ACTION[3]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[3]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[3]}" ]; then
sync_update "${TARGET[0]}" "${INITIATOR[0]}" "$DELETED_LIST_FILENAME" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[3]}" ]; then
sync_update "${INITIATOR[0]}" "${TARGET[0]}" "$DELETED_LIST_FILENAME" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ $pid == $initiatorPid ]; then
echo "${SYNC_ACTION[3]}" > "${INITIATOR[7]}"
initiatorFail=true
elif [ $pid == $targetPid ]; then
echo "${SYNC_ACTION[3]}" > "${INITIATOR[8]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[7]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[8]}"
fi
exit 1
else
echo "${SYNC_ACTION[4]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[4]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[4]}"
resumeTarget="${SYNC_ACTION[4]}"
fi
fi
## Step 4a & 4b
if [ "$resumeInitiator" == "${SYNC_ACTION[4]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[4]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[4]}" ]; then
deletion_propagation "${TARGET[0]}" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[4]}" ]; then
deletion_propagation "${INITIATOR[0]}" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ $pid == $initiatorPid ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[7]}"
initiatorFail=true
elif [ $pid == $targetPid ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[8]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[7]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[8]}"
fi
exit 1
else
echo "${SYNC_ACTION[5]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[5]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[5]}"
resumeTarget="${SYNC_ACTION[5]}"
fi
fi
## Step 5a & 5b
if [ "$resumeInitiator" == "${SYNC_ACTION[5]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[5]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[5]}" ]; then
tree_list "${INITIATOR[1]}" "${INITIATOR[0]}" "$TREE_AFTER_FILENAME" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[5]}" ]; then
tree_list "${TARGET[1]}" "${TARGET[0]}" "$TREE_AFTER_FILENAME" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ $pid == $initiatorPid ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[7]}"
initiatorFail=true
elif [ $pid == $targetPid ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[8]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[6]}" > "${INITIATOR[7]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[6]}" > "${INITIATOR[8]}"
fi
exit 1
else
echo "${SYNC_ACTION[6]}" > "${INITIATOR[7]}"
echo "${SYNC_ACTION[6]}" > "${INITIATOR[8]}"
resumeInitiator="${SYNC_ACTION[6]}"
resumeTarget="${SYNC_ACTION[6]}"
fi
fi
Logger "Finished synchronization task." "NOTICE"
echo "0" > "${INITIATOR[9]}"
}
function _SoftDeleteLocal {
local replica_type="${1}" # replica type (initiator, target)
local replica_deletion_path="${2}" # Contains the full path to softdelete / backup directory without ending slash
local change_time="${3}"
local retval
if [ -d "$replica_deletion_path" ]; then
if [ $_DRYRUN -eq 1 ]; then
Logger "Listing files older than $change_time days on $replica_type replica. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $change_time days on $replica_type replica." "NOTICE"
fi
if [ $_VERBOSE -eq 1 ]; then
# Cannot launch log function from xargs, ugly hack
$COMMAND_SUDO $FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete file {}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
$COMMAND_SUDO $FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete directory {}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
$COMMAND_SUDO $FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} $COMMAND_SUDO rm -f "{}" && $COMMAND_SUDO $FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} $COMMAND_SUDO rm -rf "{}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
else
Dummy
fi
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on $replica_type replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on $replica_type replica." "NOTICE"
fi
elif [ -d "$replica_deletion_path" ] && ! [ -w "$replica_deletion_path" ]; then
Logger "Warning: $replica_type replica dir [$replica_deletion_path] is not writable. Cannot clean old files." "ERROR"
fi
}
function _SoftDeleteRemote {
local replica_type="${1}"
local replica_deletion_path="${2}" # Contains the full path to softdelete / backup directory without ending slash
local change_time="${3}"
local retval
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ $_DRYRUN -eq 1 ]; then
Logger "Listing files older than $change_time days on $replica_type replica. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $change_time days on $replica_type replica." "NOTICE"
fi
if [ $_VERBOSE -eq 1 ]; then
# Cannot launch log function from xargs, ugly hack
cmd=$SSH_CMD' "if [ -d \"'$replica_deletion_path'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type f -ctime +'$change_time' -print0 | xargs -0 -I {} echo Will delete file {} && '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type d -empty -ctime '$change_time' -print0 | xargs -0 -I {} echo Will delete directory {}; else echo \"No remote backup/deletion directory.\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
cmd=$SSH_CMD' "if [ -d \"'$replica_deletion_path'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type f -ctime +'$change_time' -print0 | xargs -0 -I {} '$COMMAND_SUDO' rm -f \"{}\" && '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type d -empty -ctime '$change_time' -print0 | xargs -0 -I {} '$COMMAND_SUDO' rm -rf \"{}\"; else echo \"No remote backup/deletion directory.\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
else
Dummy
fi
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on remote $replica_type replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on $replica_type replica." "NOTICE"
fi
}
function SoftDelete {
local pids
if [ "$CONFLICT_BACKUP" != "no" ] && [ $CONFLICT_BACKUP_DAYS -ne 0 ]; then
Logger "Running conflict backup cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[0]}" "${INITIATOR[1]}${INITIATOR[4]}" $CONFLICT_BACKUP_DAYS &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[0]}" "${TARGET[1]}${TARGET[4]}" $CONFLICT_BACKUP_DAYS &
pids="$pids;$!"
else
_SoftDeleteRemote "${TARGET[0]}" "${TARGET[1]}${TARGET[4]}" $CONFLICT_BACKUP_DAYS &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
if [ "$SOFT_DELETE" != "no" ] && [ $SOFT_DELETE_DAYS -ne 0 ]; then
Logger "Running soft deletion cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[0]}" "${INITIATOR[1]}${INITIATOR[5]}" $SOFT_DELETE_DAYS &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[0]}" "${TARGET[1]}${TARGET[5]}" $SOFT_DELETE_DAYS &
pids="$pids;$!"
else
_SoftDeleteRemote "${TARGET[0]}" "${TARGET[1]}${TARGET[5]}" $SOFT_DELETE_DAYS &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
}
function Init {
# Set error exit code if a piped command fails
set -o pipefail
set -o errtrace
# Do not use exit and quit traps if osync runs in monitor mode
if [ $sync_on_changes -eq 0 ]; then
trap TrapStop SIGINT SIGHUP SIGTERM SIGQUIT
trap TrapQuit EXIT
else
trap TrapQuit SIGTERM EXIT SIGHUP SIGQUIT
fi
local uri
local hosturiandpath
local hosturi
## Test if target dir is a ssh uri, and if yes, break it down it its values
if [ "${TARGET_SYNC_DIR:0:6}" == "ssh://" ]; then
REMOTE_OPERATION="yes"
# remove leadng 'ssh://'
uri=${TARGET_SYNC_DIR#ssh://*}
if [[ "$uri" == *"@"* ]]; then
# remove everything after '@'
REMOTE_USER=${uri%@*}
else
REMOTE_USER=$LOCAL_USER
fi
if [ "$SSH_RSA_PRIVATE_KEY" == "" ]; then
SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
fi
# remove everything before '@'
hosturiandpath=${uri#*@}
# remove everything after first '/'
hosturi=${hosturiandpath%%/*}
if [[ "$hosturi" == *":"* ]]; then
REMOTE_PORT=${hosturi##*:}
else
REMOTE_PORT=22
fi
REMOTE_HOST=${hosturi%%:*}
# remove everything before first '/'
TARGET_SYNC_DIR=${hosturiandpath#*/}
fi
## Make sure there is only one trailing slash on path
INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR%/}/"
TARGET_SYNC_DIR="${TARGET_SYNC_DIR%/}/"
## Replica format
## Why the f*** does bash not have simple objects ?
#${REPLICA[0]} contains replica type (initiator / target)
#${REPLICA[1]} contains full replica path (can be absolute or relative) with ending slash
#${REPLICA[2]} contains full lock file path
#${REPLICA[3]} contains state dir path, relative to replica path
#${REPLICA[4]} contains backup dir path, relative to replica path
#${REPLICA[5]} contains deletion dir path, relative to replica path
#${REPLICA[6]} contains partial dir path, relative to replica path
#${REPLICA[7]} contains full initiator last action file path
#${REPLICA[8]} contains full target last action file path
#${REPLICA[9]} contains full resume count file path
# Local variables used for state filenames
local lock_filename="lock"
local state_dir="state"
local backup_dir="backup"
local delete_dir="deleted"
local partial_dir="_partial"
local last_action="last-action"
local resume_count="resume-count"
if [ "$_DRYRUN" -eq 1 ]; then
local dry_suffix="-dry"
else
local dry_suffix=
fi
#TODO(low): integrate this into ${REPLICA[x]}
TREE_CURRENT_FILENAME="-tree-current-$INSTANCE_ID$dry_suffix"
TREE_AFTER_FILENAME="-tree-after-$INSTANCE_ID$dry_suffix"
TREE_AFTER_FILENAME_NO_SUFFIX="-tree-after-$INSTANCE_ID"
DELETED_LIST_FILENAME="-deleted-list-$INSTANCE_ID$dry_suffix"
FAILED_DELETE_LIST_FILENAME="-failed-delete-$INSTANCE_ID$dry_suffix"
INITIATOR=(
'initiator'
"$INITIATOR_SYNC_DIR"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$lock_filename"
"$OSYNC_DIR/$state_dir"
"$OSYNC_DIR/$backup_dir"
"$OSYNC_DIR/$delete_dir"
"$OSYNC_DIR/$partial_dir"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$state_dir/initiator-$last_action-$INSTANCE_ID$dry_suffix"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$state_dir/target-$last_action-$INSTANCE_ID$dry_suffix"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$state_dir/$resume_count-$INSTANCE_ID$dry_suffix"
)
TARGET=(
'target'
"$TARGET_SYNC_DIR"
"$TARGET_SYNC_DIR$OSYNC_DIR/$lock_filename"
"$OSYNC_DIR/$state_dir"
"$OSYNC_DIR/$backup_dir"
"$OSYNC_DIR/$delete_dir"
"$OSYNC_DIR/$partial_dir"
"$TARGET_SYNC_DIR$OSYNC_DIR/$state_dir/$last_action-$INSTANCE_ID$dry_suffix"
"$TARGET_SYNC_DIR$OSYNC_DIR/$state_dir/$resume_count-$INSTANCE_ID$dry_suffix"
)
PARTIAL_DIR=$OSYNC_DIR"_partial"
## Set sync only function arguments for rsync
SYNC_OPTS="-u"
if [ $_VERBOSE -eq 1 ]; then
SYNC_OPTS=$SYNC_OPTS" -i"
fi
if [ $STATS -eq 1 ]; then
SYNC_OPTS=$SYNC_OPTS" --stats"
fi
## Add Rsync include / exclude patterns
if [ $_QUICK_SYNC -lt 2 ]; then
RsyncPatterns
fi
## Conflict options
if [ "$CONFLICT_BACKUP" != "no" ]; then
INITIATOR_BACKUP="--backup --backup-dir=\"${INITIATOR[1]}${INITIATOR[4]}\""
TARGET_BACKUP="--backup --backup-dir=\"${TARGET[1]}${TARGET[4]}\""
if [ "$CONFLICT_BACKUP_MULTIPLE" == "yes" ]; then
INITIATOR_BACKUP="$INITIATOR_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
TARGET_BACKUP="$TARGET_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
fi
else
INITIATOR_BACKUP=""
TARGET_BACKUP=""
fi
SYNC_ACTION=(
'replica-tree'
'deleted-list'
'sync_attrs'
'update-replica'
'delete-propagation'
'replica-tree-after'
'synced'
)
}
function Main {
CreateStateDirs
CheckLocks
Sync
}
function Usage {
if [ "$IS_STABLE" != "yes" ]; then
echo -e "\e[93mThis is an unstable dev build. Please use with caution.\e[0m"
fi
echo "$PROGRAM $PROGRAM_VERSION $PROGRAM_BUILD"
echo $AUTHOR
echo $CONTACT
echo ""
echo "You may use osync with a full blown configuration file, or use its default options for quick command line sync."
echo "Usage: osync.sh /path/to/config/file [OPTIONS]"
echo "or osync.sh --initiator=/path/to/initiator/replica --target=/path/to/target/replica [OPTIONS] [QUICKSYNC OPTIONS]"
echo "or osync.sh --initiator=/path/to/initiator/replica --target=ssh://[backupuser]@remotehost.com[:portnumber]//path/to/target/replica [OPTIONS] [QUICKSYNC OPTIONS]"
echo ""
echo "[OPTIONS]"
echo "--dry Will run osync without actually doing anything; just testing"
echo "--silent Will run osync without any output to stdout, used for cron jobs"
echo "--verbose Increases output"
echo "--stats Adds rsync transfer statistics to verbose output"
echo "--partial Allows rsync to keep partial downloads that can be resumed later (experimental)"
echo "--no-maxtime Disables any soft and hard execution time checks"
echo "--force-unlock Will override any existing active or dead locks on initiator and target replica"
echo "--on-changes Will launch a sync task after a short wait period if there is some file activity on initiator replica. You should try daemon mode instead"
echo ""
echo "[QUICKSYNC OPTIONS]"
echo "--initiator=\"\" Master replica path. Will contain state and backup directory (is mandatory)"
echo "--target=\"\" Local or remote target replica path. Can be a ssh uri like ssh://user@host.com:22//path/to/target/replica (is mandatory)"
echo "--rsakey=\"\" Alternative path to rsa private key for ssh connection to target replica"
echo "--instance-id=\"\" Optional sync task name to identify this synchronization task when using multiple targets"
echo ""
echo "Additionaly, you may set most osync options at runtime. eg:"
echo "SOFT_DELETE_DAYS=365 osync.sh --initiator=/path --target=/other/path"
echo ""
exit 128
}
function SyncOnChanges {
local cmd
local retval
if ! type inotifywait > /dev/null 2>&1 ; then
Logger "No inotifywait command found. Cannot monitor changes." "CRITICAL"
exit 1
fi
Logger "#### Running osync in file monitor mode." "NOTICE"
while true; do
if [ "$ConfigFile" != "" ]; then
cmd='bash '$osync_cmd' "'$ConfigFile'" '$opts
else
cmd='bash '$osync_cmd' '$opts
fi
Logger "daemon cmd: $cmd" "DEBUG"
eval "$cmd"
retval=$?
if [ $retval != 0 ] && [ $retval != 2 ]; then
Logger "osync child exited with error." "ERROR"
fi
Logger "#### Monitoring now." "NOTICE"
inotifywait --exclude $OSYNC_DIR $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE -qq -r -e create -e modify -e delete -e move -e attrib --timeout "$MAX_WAIT" "$INITIATOR_SYNC_DIR" &
wait $!
retval=$?
if [ $retval == 0 ]; then
Logger "#### Changes detected, waiting $MIN_WAIT seconds before running next sync." "NOTICE"
sleep $MIN_WAIT
elif [ $retval == 2 ]; then
Logger "#### $MAX_WAIT timeout reached, running sync." "NOTICE"
else
Logger "#### inotify error detected, waiting $MIN_WAIT seconds before running next sync." "ERROR"
sleep $MIN_WAIT
fi
done
}
# quicksync mode settings, overriden by config file
STATS=0
PARTIAL=0
if [ "$CONFLICT_PREVALANCE" == "" ]; then
CONFLICT_PREVALANCE=initiator
fi
LOCK_FILES_EXIST=0
FORCE_UNLOCK=0
no_maxtime=0
opts=""
ERROR_ALERT=0
SOFT_STOP=0
_QUICK_SYNC=0
sync_on_changes=0
_NOLOCKS=0
osync_cmd=$0
if [ $# -eq 0 ]
then
Usage
fi
first=1
for i in "$@"; do
case $i in
--dry)
_DRYRUN=1
opts=$opts" --dry"
;;
--silent)
_SILENT=1
opts=$opts" --silent"
;;
--verbose)
_VERBOSE=1
opts=$opts" --verbose"
;;
--stats)
STATS=1
opts=$opts" --stats"
;;
--partial)
PARTIAL="yes"
opts=$opts" --partial"
;;
--force-unlock)
FORCE_UNLOCK=1
opts=$opts" --force-unlock"
;;
--no-maxtime)
no_maxtime=1
opts=$opts" --no-maxtime"
;;
--help|-h|--version|-v)
Usage
;;
--initiator=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
no_maxtime=1
INITIATOR_SYNC_DIR=${i##*=}
opts=$opts" --initiator=\"$INITIATOR_SYNC_DIR\""
;;
--target=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
TARGET_SYNC_DIR=${i##*=}
opts=$opts" --target=\"$TARGET_SYNC_DIR\""
no_maxtime=1
;;
--rsakey=*)
SSH_RSA_PRIVATE_KEY=${i##*=}
opts=$opts" --rsakey=\"$SSH_RSA_PRIVATE_KEY\""
;;
--instance-id=*)
INSTANCE_ID=${i##*=}
opts=$opts" --instance-id=\"$INSTANCE_ID\""
;;
--on-changes)
sync_on_changes=1
_NOLOCKS=1
_LOGGER_PREFIX="date"
_LOGGER_STDERR=1
;;
--no-locks)
_NOLOCKS=1
;;
*)
if [ $first == "0" ]; then
Logger "Unknown option '$i'" "CRITICAL"
Usage
fi
;;
esac
first=0
done
# Remove leading space if there is one
opts="${opts# *}"
## Here we set default options for quicksync tasks when no configuration file is provided.
if [ $_QUICK_SYNC -eq 2 ]; then
if [ "$INSTANCE_ID" == "" ]; then
INSTANCE_ID="quicksync_task"
fi
# Let the possibility to initialize those values directly via command line like SOFT_DELETE_DAYS=60 ./osync.sh
if [ "$MINIMUM_SPACE" == "" ]; then
MINIMUM_SPACE=1024
fi
if [ "$CONFLICT_BACKUP_DAYS" == "" ]; then
CONFLICT_BACKUP_DAYS=30
fi
if [ "$SOFT_DELETE_DAYS" == "" ]; then
SOFT_DELETE_DAYS=30
fi
if [ "$RESUME_TRY" == "" ]; then
RESUME_TRY=1
fi
if [ "$SOFT_MAX_EXEC_TIME" == "" ]; then
SOFT_MAX_EXEC_TIME=0
fi
if [ "$HARD_MAX_EXEC_TIME" == "" ]; then
HARD_MAX_EXEC_TIME=0
fi
MIN_WAIT=30
REMOTE_OPERATION=no
else
ConfigFile="${1}"
LoadConfigFile "$ConfigFile"
fi
if [ "$LOGFILE" == "" ]; then
if [ -w /var/log ]; then
LOG_FILE="/var/log/$PROGRAM.$INSTANCE_ID.log"
elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
LOG_FILE="$HOME/$PROGRAM.$INSTANCE_ID.log"
else
LOG_FILE="./$PROGRAM.$INSTANCE_ID.log"
fi
else
LOG_FILE="$LOGFILE"
fi
Logger "Script begin, logging to [$LOG_FILE]." "DEBUG"
if [ "$IS_STABLE" != "yes" ]; then
Logger "This is an unstable dev build. Please use with caution." "WARN"
fi
GetLocalOS
InitLocalOSSettings
CheckEnvironment
PreInit
Init
PostInit
if [ $_QUICK_SYNC -lt 2 ]; then
CheckCurrentConfig
fi
DATE=$(date)
Logger "-------------------------------------------------------------" "NOTICE"
Logger "$DRY_WARNING $DATE - $PROGRAM $PROGRAM_VERSION script begin." "NOTICE"
Logger "-------------------------------------------------------------" "NOTICE"
Logger "Sync task [$INSTANCE_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)" "NOTICE"
if [ $sync_on_changes -eq 1 ]; then
SyncOnChanges
else
GetRemoteOS
InitRemoteOSSettings
if [ $no_maxtime -eq 1 ]; then
SOFT_MAX_EXEC_TIME=0
HARD_MAX_EXEC_TIME=0
fi
CheckReplicaPaths
CheckDiskSpace
RunBeforeHook
Main
if [ $? == 0 ]; then
SoftDelete
fi
fi
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