mirror of
https://github.com/deajan/osync
synced 2024-11-03 15:40:14 +00:00
2376 lines
76 KiB
Bash
Executable File
2376 lines
76 KiB
Bash
Executable File
#!/usr/bin/env bash
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PROGRAM="Osync" # Rsync based two way sync engine with fault tolerance
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AUTHOR="(L) 2013-2015 by Orsiris \"Ozy\" de Jong"
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CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
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PROGRAM_VERSION=1.1-unstable
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PROGRAM_BUILD=2015091903
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## type doesn't work on platforms other than linux (bash). If if doesn't work, always assume output is not a zero exitcode
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if ! type -p "$BASH" > /dev/null; then
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echo "Please run this script only with bash shell. Tested on bash >= 3.2"
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exit 127
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fi
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## allow debugging from command line with DEBUG=yes
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if [ ! "$_DEBUG" == "yes" ]; then
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_DEBUG=no
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SLEEP_TIME=.1
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else
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SLEEP_TIME=1
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fi
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## allow function call checks #__WITH_PARANOIA_DEBUG
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if [ "$_PARANOIA_DEBUG" == "yes" ];then #__WITH_PARANOIA_DEBUG
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_DEBUG=yes #__WITH_PARANOIA_DEBUG
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SLEEP_TIME=1 #__WITH_PARANOIA_DEBUG
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fi #__WITH_PARANOIA_DEBUG
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SCRIPT_PID=$$
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LOCAL_USER=$(whoami)
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LOCAL_HOST=$(hostname)
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## Default log file until config file is loaded
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if [ -w /var/log ]; then
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LOG_FILE=/var/log/osync.log
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else
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LOG_FILE=./osync.log
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fi
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## Default directory where to store temporary run files
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if [ -w /tmp ]; then
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RUN_DIR=/tmp
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elif [ -w /var/tmp ]; then
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RUN_DIR=/var/tmp
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else
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RUN_DIR=.
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fi
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## Working directory. This is the name of the osync subdirectory contained in every replica.
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OSYNC_DIR=".osync_workdir"
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## Log a state message every $KEEP_LOGGING seconds. Should not be equal to soft or hard execution time so your log won't be unnecessary big.
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KEEP_LOGGING=1801
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## Correct output of sort command (language agnostic sorting)
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export LC_ALL=C
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ALERT_LOG_FILE=$RUN_DIR/osync.lastlog
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function Dummy {
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sleep .1
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}
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function _Logger {
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local value="${1}" # What to log
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echo -e "$value" >> "$LOG_FILE"
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if [ $_SILENT -eq 0 ]; then
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echo -e "$value"
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fi
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}
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function Logger {
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local value="${1}" # Sentence to log (in double quotes)
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local level="${2}" # Log level: PARANOIA_DEBUG, DEBUG, NOTICE, WARN, ERROR, CRITIAL
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# Special case in daemon mode we should timestamp instead of counting seconds
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if [ $sync_on_changes -eq 1 ]; then
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prefix="$(date) - "
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else
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prefix="TIME: $SECONDS - "
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fi
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if [ "$level" == "CRITICAL" ]; then
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_Logger "$prefix\e[41m$value\e[0m"
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ERROR_ALERT=1
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return
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elif [ "$level" == "ERROR" ]; then
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_Logger "$prefix\e[91m$value\e[0m"
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ERROR_ALERT=1
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return
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elif [ "$level" == "WARN" ]; then
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_Logger "$prefix\e[93m$value\e[0m"
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return
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elif [ "$level" == "NOTICE" ]; then
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_Logger "$prefix$value"
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return
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elif [ "$level" == "DEBUG" ]; then
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if [ "$_DEBUG" == "yes" ]; then
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_Logger "$prefix$value"
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return
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fi
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elif [ "$level" == "PARANOIA_DEBUG" ]; then
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if [ "$_PARANOIA_DEBUG" == "yes" ]; then
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_Logger "$prefix$value"
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return
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fi
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else
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_Logger "\e[41mLogger function called without proper loglevel.\e[0m"
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_Logger "$prefix$value"
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fi
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}
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# Portable child (and grandchild) kill function tester under Linux, BSD and MacOS X
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function KillChilds {
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local pid="${1}"
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local self="${2:-false}"
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if children="$(pgrep -P "$pid")"; then
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for child in $children; do
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KillChilds "$child" true
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done
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fi
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if [ "$self" == true ]; then
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kill -s SIGTERM "$pid" || (sleep 10 && kill -9 "$pid" &)
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fi
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}
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function TrapError {
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local job="$0"
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local line="$1"
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local code="${2:-1}"
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if [ $_SILENT -eq 0 ]; then
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echo -e " /!\ ERROR in ${job}: Near line ${line}, exit code ${code}"
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fi
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}
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function TrapStop {
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if [ $soft_stop -eq 0 ]; then
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Logger " /!\ WARNING: Manual exit of osync is really not recommended. Sync will be in inconsistent state." "WARN"
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Logger " /!\ WARNING: If you are sure, please hit CTRL+C another time to quit." "WARN"
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soft_stop=1
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return 1
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fi
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if [ $soft_stop -eq 1 ]; then
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Logger " /!\ WARNING: CTRL+C hit twice. Exiting osync. Please wait while replicas get unlocked..." "WARN"
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soft_stop=2
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exit 1
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fi
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}
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function TrapQuit {
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if [ $error_alert -ne 0 ]; then
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if [ "$_DEBUG" != "yes" ]; then
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SendAlert
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else
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Logger "Debug mode, no alert mail will be sent." "NOTICE"
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fi
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UnlockReplicas
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CleanUp
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Logger "Osync finished with errors." "WARN"
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exitcode=1
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else
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UnlockReplicas
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CleanUp
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Logger "Osync finished." "NOTICE"
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exitcode=0
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fi
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#TODO: Check new KillChilds function for service mode
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# if ps -p $OSYNC_SUB_PID > /dev/null 2>&1
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# then
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# kill -s SIGTERM $OSYNC_SUB_PID
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# if [ $? == 0 ]; then
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# Logger "Stopped sub process [$OSYNC_SUB_PID]." "DEBUG"
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# else
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# Logger "Could not terminate sub process [$OSYNC_SUB_PID]. Trying the hard way." "DEBUG"
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# kill -9 $OSYNC_SUB_PID
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# if [ $? != 0 ]; then
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# Logger "Could not kill sub process [$OSYNC_SUB_PID]." "ERROR"
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# fi
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# fi
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# fi
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KillChilds $$ > /dev/null 2&>1
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exit $exitcode
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}
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function Spinner {
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if [ $_SILENT -eq 1 ]; then
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return 0
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fi
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case $toggle
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in
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1)
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echo -n " \ "
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echo -ne "\r"
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toggle="2"
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;;
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2)
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echo -n " | "
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echo -ne "\r"
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toggle="3"
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;;
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3)
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echo -n " / "
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echo -ne "\r"
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toggle="4"
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;;
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*)
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echo -n " - "
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echo -ne "\r"
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toggle="1"
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;;
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esac
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}
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function EscapeSpaces {
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local string="${1}" # String on which spaces will be escaped
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echo $(echo "$string" | sed 's/ /\\ /g')
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}
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function CleanUp {
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__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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if [ "$_DEBUG" != "yes" ]; then
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rm -f "$RUN_DIR/osync.*.$SCRIPT_PID"
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fi
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}
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function SendAlert {
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__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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if [ "$quick_sync" == "2" ]; then
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Logger "Current task is a quicksync task. Will not send any alert." "NOTICE"
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return 0
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fi
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eval "cat \"$LOG_FILE\" $COMPRESSION_PROGRAM > $ALERT_LOG_FILE"
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MAIL_ALERT_MSG=$MAIL_ALERT_MSG$'\n\n'$(tail -n 25 "$LOG_FILE")
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if type -p mutt > /dev/null 2>&1
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then
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echo $MAIL_ALERT_MSG | $(type -p mutt) -x -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS -a "$ALERT_LOG_FILE"
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if [ $? != 0 ]; then
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Logger "WARNING: Cannot send alert email via $(type -p mutt) !!!" "WARN"
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else
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Logger "Sent alert mail using mutt." "NOTICE"
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fi
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elif type -p mail > /dev/null 2>&1
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then
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echo $MAIL_ALERT_MSG | $(type -p mail) -a "$ALERT_LOG_FILE" -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS
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if [ $? != 0 ]; then
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Logger "WARNING: Cannot send alert email via $(type -p mail) with attachments !!!" "WARN"
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echo $MAIL_ALERT_MSG | $(type -p mail) -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS
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if [ $? != 0 ]; then
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Logger "WARNING: Cannot send alert email via $(type -p mail) without attachments !!!" "WARN"
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else
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Logger "Sent alert mail using mail command without attachment." "NOTICE"
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fi
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else
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Logger "Sent alert mail using mail command." "NOTICE"
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fi
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elif type -p sendemail > /dev/null 2>&1
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then
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if [ "$SMTP_USER" != "" ] && [ "$SMTP_PASSWORD" != "" ]; then
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$SMTP_OPTIONS="-xu $SMTP_USER -xp $SMTP_PASSWORD"
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else
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$SMTP_OPTIONS=""
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fi
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$(type -p sendemail) -f $SENDER_MAIL -t $DESTINATION_MAILS -u "Backup alert for $BACKUP_ID" -m "$MAIL_ALERT_MSG" -s $SMTP_SERVER $SMTP_OPTIONS > /dev/null 2>&1
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if [ $? != 0 ]; then
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Logger "WARNING: Cannot send alert email via $(type -p sendemail) !!!" "WARN"
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else
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Logger "Sent alert mail using sendemail command without attachment." "NOTICE"
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fi
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else
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Logger "WARNING: Cannot send alert email (no mutt / mail present) !!!" "WARN"
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return 1
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fi
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if [ -f "$ALERT_LOG_FILE" ]; then
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rm "$ALERT_LOG_FILE"
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fi
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}
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function LoadConfigFile {
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__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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local config_file="${1}"
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if [ ! -f "$config_file" ]; then
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Logger "Cannot load configuration file [$config_file]. Sync cannot start." "CRITICAL"
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exit 1
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elif [[ "$1" != *".conf" ]]; then
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Logger "Wrong configuration file supplied [$config_file]. Sync cannot start." "CRITICAL"
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exit 1
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else
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egrep '^#|^[^ ]*=[^;&]*' "$config_file" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID
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source "$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID"
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fi
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}
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function CheckEnvironment {
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__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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if [ "$REMOTE_SYNC" == "yes" ]; then
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if ! type -p ssh > /dev/null 2>&1
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then
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Logger "ssh not present. Cannot start sync." "CRITICAL"
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return 1
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fi
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fi
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if ! type -p rsync > /dev/null 2>&1
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then
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Logger "rsync not present. Sync cannot start." "CRITICAL"
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return 1
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fi
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}
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function GetLocalOS {
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__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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local local_os_var=$(uname -spio 2>&1)
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if [ $? != 0 ]; then
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local local_os_var=$(uname -v 2>&1)
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if [ $? != 0 ]; then
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local local_os_var=($uname)
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fi
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fi
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case $local_os_var in
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*"Linux"*)
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LOCAL_OS="Linux"
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;;
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*"BSD"*)
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LOCAL_OS="BSD"
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;;
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*"MINGW32"*)
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LOCAL_OS="msys"
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;;
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*"Darwin"*)
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LOCAL_OS="MacOSX"
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;;
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*)
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Logger "Running on >> $local_os_var << not supported. Please report to the author." "ERROR"
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exit 1
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;;
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esac
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Logger "Local OS: [$local_os_var]." "DEBUG"
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}
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function GetRemoteOS {
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__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
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if [ "$REMOTE_SYNC" == "yes" ]; then
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CheckConnectivity3rdPartyHosts
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CheckConnectivityRemoteHost
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local cmd=$SSH_CMD' "uname -spio" > "'$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID'" 2>&1'
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Logger "cmd: $cmd" "DEBUG"
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eval $cmd &
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WaitForTaskCompletion $! 120 240 $FUNCNAME"-1"
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retval=$?
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if [ $retval != 0 ]; then
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local cmd=$SSH_CMD' "uname -v" > "'$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID'" 2>&1'
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Logger "cmd: $cmd" "DEBUG"
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eval $cmd &
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WaitForTaskCompletion $! 120 240 $FUNCNAME"-2"
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retval=$?
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if [ $retval != 0 ]; then
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local cmd=$SSH_CMD' "uname" > "'$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID'" 2>&1'
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Logger "cmd: $cmd" "DEBUG"
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eval $cmd &
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WaitForTaskCompletion $! 120 240 $FUNCNAME"-3"
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retval=$?
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if [ $retval != 0 ]; then
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Logger "Cannot Get remote OS type." "ERROR"
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fi
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fi
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fi
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local remote_os_var=$(cat "$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID")
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case $remote_os_var in
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*"Linux"*)
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REMOTE_OS="Linux"
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;;
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*"BSD"*)
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REMOTE_OS="BSD"
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;;
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*"MINGW32"*)
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REMOTE_OS="msys"
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;;
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*"Darwin"*)
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REMOTE_OS="MacOSX"
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;;
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*"ssh"*|*"SSH"*)
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Logger "Cannot connect to remote system." "CRITICAL"
|
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exit 1
|
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;;
|
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*)
|
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Logger "Running on remote OS failed. Please report to the author if the OS is not supported." "CRITICAL"
|
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Logger "Remote OS said:\n$remote_os_var" "CRITICAL"
|
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exit 1
|
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esac
|
||
|
||
Logger "Remote OS: [$remote_os_var]." "DEBUG"
|
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fi
|
||
}
|
||
|
||
function WaitForTaskCompletion {
|
||
local pid="${1}" # pid to wait for
|
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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 $hard_max_time equals 0.
|
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local caller_name="${4}" # Who called this function
|
||
Logger "$FUNCNAME called by [$caller_name]." "PARANOIA_DEBUG" #__WITH_PARANOIA_DEBUG
|
||
__CheckArguments 4 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CHILD_PID=$pid
|
||
|
||
local soft_alert=0 # Does a soft alert need to be triggered
|
||
local log_ttime=0 # local time instance for comparaison
|
||
|
||
local seconds_begin=$SECONDS # Seconds since the beginning of the script
|
||
local exec_time=0 # Seconds since the beginning of this function
|
||
|
||
while eval "$PROCESS_TEST_CMD" > /dev/null
|
||
do
|
||
Spinner
|
||
exec_time=$(($SECONDS - $seconds_begin))
|
||
if [ $((($exec_time + 1) % $KEEP_LOGGING)) -eq 0 ]; then
|
||
if [ $log_ttime -ne $exec_time ]; then
|
||
log_ttime=$exec_time
|
||
Logger "Current task still running." "NOTICE"
|
||
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." "WARN"
|
||
soft_alert=1
|
||
fi
|
||
if [ $exec_time -gt $hard_max_time ] && [ $hard_max_time -ne 0 ]; then
|
||
Logger "Max hard execution time exceeded for task. Stopping task execution." "ERROR"
|
||
kill -s SIGTERM $pid
|
||
if [ $? == 0 ]; then
|
||
Logger "Task stopped succesfully" "NOTICE"
|
||
else
|
||
Logger "Sending SIGTERM to proces failed. Trying the hard way." "ERROR"
|
||
kill -9 $pid
|
||
if [ $? != 0 ]; then
|
||
Logger "Could not stop task." "ERROR"
|
||
fi
|
||
fi
|
||
return 1
|
||
fi
|
||
fi
|
||
sleep $SLEEP_TIME
|
||
done
|
||
wait $pid
|
||
local retval=$?
|
||
Logger "$FUNCNAME ended for [$caller_name]." "PARANOIA_DEBUG" #__WITH_PARANOIA_DEBUG
|
||
return $retval
|
||
}
|
||
|
||
function WaitForCompletion {
|
||
local pid="${1}" # pid to wait for
|
||
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
|
||
Logger "$FUNCNAME called by [$caller_name]" "PARANOIA_DEBUG" #__WITH_PARANOIA_DEBUG
|
||
__CheckArguments 4 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CHILD_PID=$pid
|
||
|
||
local soft_alert=0 # Does a soft alert need to be triggered
|
||
local log_ttime=0 # local time instance for comparaison
|
||
|
||
local seconds_begin=$SECONDS # Seconds since the beginning of the script
|
||
local exec_time=0 # Seconds since the beginning of this function
|
||
|
||
while eval "$PROCESS_TEST_CMD" > /dev/null
|
||
do
|
||
Spinner
|
||
if [ $((($SECONDS + 1) % $KEEP_LOGGING)) -eq 0 ]; then
|
||
if [ $log_time -ne $SECONDS ]; then
|
||
log_time=$SECONDS
|
||
Logger "Current task still running." "NOTICE"
|
||
fi
|
||
fi
|
||
if [ $SECONDS -gt $soft_max_time ]; then
|
||
if [ $soft_alert -eq 0 ] && [ $soft_max_time != 0 ]; then
|
||
Logger "Max soft execution time exceeded for script." "WARN"
|
||
soft_alert=1
|
||
fi
|
||
if [ $SECONDS -gt $hard_max_time ] && [ $hard_max_time != 0 ]; then
|
||
Logger "Max hard execution time exceeded for script. Stopping current task execution." "ERROR"
|
||
kill -s SIGTERM $pid
|
||
if [ $? == 0 ]; then
|
||
Logger "Task stopped succesfully" "NOTICE"
|
||
else
|
||
Logger "Sending SIGTERM to proces failed. Trying the hard way." "ERROR"
|
||
kill -9 $pid
|
||
if [ $? != 0 ]; then
|
||
Logger "Could not stop task." "ERROR"
|
||
fi
|
||
fi
|
||
return 1
|
||
fi
|
||
fi
|
||
sleep $SLEEP_TIME
|
||
done
|
||
wait $pid
|
||
retval=$?
|
||
Logger "$FUNCNAME ended for [$caller_name]." "PARANOIA_DEBUG" #__WITH_PARANOIA_DEBUG
|
||
return $retval
|
||
}
|
||
|
||
function RunLocalCommand {
|
||
local command="${1}" # Command to run
|
||
local hard_max_time="${2}" # Max time to wait for command to compleet
|
||
__CheckArguments 2 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ $_DRYRUN -ne 0 ]; then
|
||
Logger "Dryrun: Local command [$command] not run." "NOTICE"
|
||
return 1
|
||
fi
|
||
Logger "Running command [$command] on local host." "NOTICE"
|
||
eval "$command" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1 &
|
||
WaitForTaskCompletion $! 0 $hard_max_time $FUNCNAME
|
||
retval=$?
|
||
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 $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
|
||
if [ "$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
|
||
__CheckArguments 2 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
if [ $_DRYRUN -ne 0 ]; then
|
||
Logger "Dryrun: Local command [$command] not run." "NOTICE"
|
||
return 1
|
||
fi
|
||
Logger "Running command [$command] on remote host." "NOTICE"
|
||
eval "$SSH_CMD \"$command\" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1 &"
|
||
WaitForTaskCompletion $! 0 $hard_max_time $FUNCNAME
|
||
retval=$?
|
||
if [ $retval -eq 0 ]; then
|
||
Logger "Command succeded." "NOTICE"
|
||
else
|
||
Logger "Command failed." "ERROR"
|
||
fi
|
||
|
||
if [ -f $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID ] && ([ $_VERBOSE -eq 1 ] || [ $retval -ne 0 ])
|
||
then
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
|
||
if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]; then
|
||
Logger "Stopping on command execution error." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
}
|
||
|
||
function RunBeforeHook {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ "$LOCAL_RUN_BEFORE_CMD" != "" ]; then
|
||
RunLocalCommand "$LOCAL_RUN_BEFORE_CMD" $MAX_EXEC_TIME_PER_CMD_BEFORE
|
||
fi
|
||
|
||
if [ "$REMOTE_RUN_BEFORE_CMD" != "" ]; then
|
||
RunRemoteCommand "$REMOTE_RUN_BEFORE_CMD" $MAX_EXEC_TIME_PER_CMD_BEFORE
|
||
fi
|
||
}
|
||
|
||
function RunAfterHook {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ "$LOCAL_RUN_AFTER_CMD" != "" ]; then
|
||
RunLocalCommand "$LOCAL_RUN_AFTER_CMD" $MAX_EXEC_TIME_PER_CMD_AFTER
|
||
fi
|
||
|
||
if [ "$REMOTE_RUN_AFTER_CMD" != "" ]; then
|
||
RunRemoteCommand "$REMOTE_RUN_AFTER_CMD" $MAX_EXEC_TIME_PER_CMD_AFTER
|
||
fi
|
||
}
|
||
|
||
function CheckConnectivityRemoteHost {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ "$REMOTE_HOST_PING" != "no" ] && [ "$REMOTE_SYNC" != "no" ]; then
|
||
eval "$PING_CMD $REMOTE_HOST > /dev/null 2>&1"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot ping $REMOTE_HOST" "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function CheckConnectivity3rdPartyHosts {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ "$REMOTE_3RD_PARTY_HOSTS" != "" ]; then
|
||
remote_3rd_party_success=0
|
||
OLD_IFS=$IFS
|
||
IFS=$' \t\n'
|
||
for i in $REMOTE_3RD_PARTY_HOSTS
|
||
do
|
||
eval "$PING_CMD $i > /dev/null 2>&1"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot ping 3rd party host $i" "WARN"
|
||
else
|
||
remote_3rd_party_success=1
|
||
fi
|
||
done
|
||
IFS=$OLD_IFS
|
||
if [ $remote_3rd_party_success -ne 1 ]; then
|
||
Logger "No remote 3rd party host responded to ping. No internet ?" "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
#__BEGIN_WITH_PARANOIA_DEBUG
|
||
function __CheckArguments {
|
||
# Checks the number of arguments and raises an error if some are missing
|
||
if [ "$_DEBUG" == "yes" ]; then
|
||
|
||
local number_of_arguments="${1}" # Number of arguments a function should have
|
||
local number_of_given_arguments="${2}" # Number of arguments that have been passed
|
||
local function_name="${3}" # Function name that called __CheckArguments
|
||
local arguments="${4}" # All other arguments
|
||
|
||
if [ "$_PARANOIA_DEBUG" == "yes" ]; then
|
||
Logger "Entering function [$function_name]." "DEBUG"
|
||
|
||
# Paranoia check... Can help finding empty arguments. __CheckArguments should be grepped out in production builds.
|
||
local count=-3 # Number of arguments minus the function calls for __CheckArguments
|
||
for i in $@; do
|
||
count=$((count + 1))
|
||
done
|
||
if [ $count -ne $1 ]; then
|
||
Logger "Function $function_name may have inconsistent number of arguments. Expected: $number_of_arguments, count: $count, see log file." "WARN"
|
||
echo "Argument list (including checks): $@" >> "$LOG_FILE"
|
||
fi
|
||
fi
|
||
|
||
if [ $number_of_arguments -ne $number_of_given_arguments ]; then
|
||
Logger "Inconsistnent number of arguments in $function_name. Should have $number_of_arguments arguments, has $number_of_given_arguments arguments, see log file." "CRITICAL"
|
||
# Cannot user Logger here because $@ is a list of arguments
|
||
echo "Argumnt list: $4" >> "$LOG_FILE"
|
||
fi
|
||
|
||
fi
|
||
}
|
||
#__END_WITH_PARANOIA_DEBUG
|
||
|
||
###### realpath.sh implementation from https://github.com/mkropat/sh-realpath
|
||
|
||
realpath() {
|
||
canonicalize_path "$(resolve_symlinks "$1")"
|
||
}
|
||
|
||
resolve_symlinks() {
|
||
_resolve_symlinks "$1"
|
||
}
|
||
|
||
_resolve_symlinks() {
|
||
_assert_no_path_cycles "$@" || return
|
||
|
||
local dir_context path
|
||
path=$(readlink -- "$1")
|
||
if [ $? -eq 0 ]; then
|
||
dir_context=$(dirname -- "$1")
|
||
_resolve_symlinks "$(_prepend_dir_context_if_necessary "$dir_context" "$path")" "$@"
|
||
else
|
||
printf '%s\n' "$1"
|
||
fi
|
||
}
|
||
|
||
_prepend_dir_context_if_necessary() {
|
||
if [ "$1" = . ]; then
|
||
printf '%s\n' "$2"
|
||
else
|
||
_prepend_path_if_relative "$1" "$2"
|
||
fi
|
||
}
|
||
|
||
_prepend_path_if_relative() {
|
||
case "$2" in
|
||
/* ) printf '%s\n' "$2" ;;
|
||
* ) printf '%s\n' "$1/$2" ;;
|
||
esac
|
||
}
|
||
|
||
_assert_no_path_cycles() {
|
||
local target path
|
||
|
||
target=$1
|
||
shift
|
||
|
||
for path in "$@"; do
|
||
if [ "$path" = "$target" ]; then
|
||
return 1
|
||
fi
|
||
done
|
||
}
|
||
|
||
canonicalize_path() {
|
||
if [ -d "$1" ]; then
|
||
_canonicalize_dir_path "$1"
|
||
else
|
||
_canonicalize_file_path "$1"
|
||
fi
|
||
}
|
||
|
||
_canonicalize_dir_path() {
|
||
(cd "$1" 2>/dev/null && pwd -P)
|
||
}
|
||
|
||
_canonicalize_file_path() {
|
||
local dir file
|
||
dir=$(dirname -- "$1")
|
||
file=$(basename -- "$1")
|
||
(cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file")
|
||
}
|
||
|
||
# Optionally, you may also want to include:
|
||
|
||
### readlink emulation ###
|
||
|
||
readlink() {
|
||
if _has_command readlink; then
|
||
_system_readlink "$@"
|
||
else
|
||
_emulated_readlink "$@"
|
||
fi
|
||
}
|
||
|
||
_has_command() {
|
||
hash -- "$1" 2>/dev/null
|
||
}
|
||
|
||
_system_readlink() {
|
||
command readlink "$@"
|
||
}
|
||
|
||
_emulated_readlink() {
|
||
if [ "$1" = -- ]; then
|
||
shift
|
||
fi
|
||
|
||
_gnu_stat_readlink "$@" || _bsd_stat_readlink "$@"
|
||
}
|
||
|
||
_gnu_stat_readlink() {
|
||
local output
|
||
output=$(stat -c %N -- "$1" 2>/dev/null) &&
|
||
|
||
printf '%s\n' "$output" |
|
||
sed "s/^‘[^’]*’ -> ‘\(.*\)’/\1/
|
||
s/^'[^']*' -> '\(.*\)'/\1/"
|
||
# FIXME: handle newlines
|
||
}
|
||
|
||
_bsd_stat_readlink() {
|
||
stat -f %Y -- "$1" 2>/dev/null
|
||
}
|
||
|
||
###### Osync specific functions (non shared)
|
||
|
||
function _CreateStateDirsLocal {
|
||
local replica_state_dir="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if ! [ -d "$replica_state_dir" ]; then
|
||
$COMMAND_SUDO mkdir -p "$replica_state_dir" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create state dir [$replica_state_dir]." "CRITICAL"
|
||
Logger "Command output:\n$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID" "ERROR"
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function _CreateStateDirsRemote {
|
||
local replica_state_dir="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
$cmd = "$SSH_CMD \"if ! [ -d \\\"$replica_state_dir\\\" ]; then $COMMAND_SUDO mkdir -p \\\"$replica_state_dir\\\"; fi 2>&1\" &"
|
||
eval $cmd > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create remote state dir [$replica_state_dir]." "CRITICAL"
|
||
Logger "Command output:\n$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID" "ERROR"
|
||
exit 1
|
||
fi
|
||
}
|
||
|
||
function CreateStateDirs {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
_CreateStateDirsLocal "$INITIATOR_STATE_DIR"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_CreateStateDirsLocal "$TARGET_STATE_DIR"
|
||
else
|
||
_CreateStateDirsRemote "$TARGET_STATE_DIR"
|
||
fi
|
||
}
|
||
|
||
function _CheckReplicaPathsLocal {
|
||
local replica_path="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ ! -d "$replica_path" ]; then
|
||
if [ "$CREATE_DIRS" == "yes" ]; then
|
||
$COMMAND_SUDO mkdir -p "$replica_path" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create local replica path [$replica_path]." "CRITICAL"
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)"
|
||
exit 1
|
||
else
|
||
Logger "Created local replica path [$replica_path]." "NOTICE"
|
||
fi
|
||
else
|
||
Logger "Local replica path [$replica_path] does not exist." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
|
||
if [ ! -w "$replica_path" ]; then
|
||
Logger "Local replica path [$replica_path] is not writable." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
}
|
||
|
||
function _CheckReplicaPathsRemote {
|
||
local replica_path="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
cmd="$SSH_CMD \"if ! [ -d \\\"$replica_path\\\" ]; then if [ "$CREATE_DIRS" == "yes" ]; then $COMMAND_SUDO mkdir -p \\\"$replica_path\\\"; fi; fi 2>&1\" &"
|
||
eval $cmd > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create remote replica path [$replica_path]." "CRITICAL"
|
||
Logger "Command output:\n$RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID" "ERROR"
|
||
exit 1
|
||
fi
|
||
|
||
cmd="$SSH_CMD \"if [ ! -w "$replica_path" ];then exit 1; fi 2>&1\" &"
|
||
eval $cmd
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Remote replica path [$replica_path] is not writable." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
}
|
||
|
||
function CheckReplicaPaths {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
#INITIATOR_SYNC_DIR_CANN=$(realpath "$INITIATOR_SYNC_DIR") #TODO: investigate realpath & readlink issues on MSYS and busybox here
|
||
#TARGET_SYNC_DIR_CANN=$(realpath "$TARGET_SYNC_DIR")
|
||
|
||
#if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
# if [ "$INITIATOR_SYNC_DIR_CANN" == "$TARGET_SYNC_DIR_CANN" ]; then
|
||
# Logger "Master directory [$INITIATOR_SYNC_DIR] can't be the same as target directory." "CRITICAL"
|
||
# exit 1
|
||
# fi
|
||
#fi
|
||
|
||
_CheckReplicaPathsLocal "$INITIATOR_SYNC_DIR"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_CheckReplicaPathsLocal "$TARGET_SYNC_DIR"
|
||
else
|
||
_CheckReplicaPathsRemote "$TARGET_SYNC_DIR"
|
||
fi
|
||
}
|
||
|
||
function _CheckDiskSpaceLocal {
|
||
local replica_path="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
Logger "Checking minimum disk space in [$replica_path]." "NOTICE"
|
||
|
||
local initiator_space=$(df -P "$replica_path" | tail -1 | awk '{print $4}')
|
||
if [ $initiator_space -lt $MINIMUM_SPACE ]; then
|
||
Logger "There is not enough free space on initiator [$initiator_space KB]." "WARN"
|
||
fi
|
||
}
|
||
|
||
function _CheckDiskSpaceRemote {
|
||
local replica_path="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
Logger "Checking minimum disk space on target [$replica_path]." "NOTICE"
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
cmd="$SSH_CMD \"$COMMAND_SUDO df -P \\\"$replica_path\\\"\" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1 &"
|
||
eval $cmd
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot get free space on target [$replica_path]." "ERROR"
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
else
|
||
local target_space=$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID | tail -1 | awk '{print $4}')
|
||
if [ $target_space -lt $MINIMUM_SPACE ]; then
|
||
Logger "There is not enough free space on target [$replica_path]." "WARN"
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function CheckDiskSpace {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
_CheckDiskSpaceLocal "$INITIATOR_SYNC_DIR"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_CheckDiskSpaceLocal "$TARGET_SYNC_DIR"
|
||
else
|
||
_CheckDiskSpaceRemote "$TARGET_SYNC_DIR"
|
||
fi
|
||
}
|
||
|
||
function RsyncExcludePattern {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
# Disable globbing so wildcards from exclusions don't get expanded
|
||
set -f
|
||
rest="$RSYNC_EXCLUDE_PATTERN"
|
||
while [ -n "$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_EXCLUDE" == "" ]; then
|
||
RSYNC_EXCLUDE="--exclude=\"$str\""
|
||
else
|
||
RSYNC_EXCLUDE="$RSYNC_EXCLUDE --exclude=\"$str\""
|
||
fi
|
||
done
|
||
set +f
|
||
}
|
||
|
||
function RsyncExcludeFrom {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ ! "$RSYNC_EXCLUDE_FROM" == "" ]; then
|
||
## Check if the exclude list has a full path, and if not, add the config file path if there is one
|
||
if [ "$(basename $RSYNC_EXCLUDE_FROM)" == "$RSYNC_EXCLUDE_FROM" ]; then
|
||
RSYNC_EXCLUDE_FROM=$(dirname $ConfigFile)/$RSYNC_EXCLUDE_FROM
|
||
fi
|
||
|
||
if [ -e "$RSYNC_EXCLUDE_FROM" ]; then
|
||
RSYNC_EXCLUDE="$RSYNC_EXCLUDE --exclude-from=\"$RSYNC_EXCLUDE_FROM\""
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function _WriteLockFilesLocal {
|
||
local lockfile="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
$COMMAND_SUDO echo "$SCRIPT_PID@$SYNC_ID" > "$lockfile" #TODO: Determine best format for lockfile for v2
|
||
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}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
cmd="$SSH_CMD \"echo $SCRIPT_PID@$SYNC_ID | $COMMAND_SUDO tee \\\"$lockfile\\\" > /dev/null \" &"
|
||
eval $cmd
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Could not set lock on remote target replica." "CRITICAL"
|
||
exit 1
|
||
else
|
||
Logger "Locked remote target replica." "DEBUG"
|
||
fi
|
||
}
|
||
|
||
function WriteLockFiles {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
_WriteLockFilesLocal "$INITIATOR_LOCKFILE"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_WriteLockFilesLocal "$TARGET_LOCKFILE"
|
||
else
|
||
_WriteLockFilesRemote "$TARGET_LOCKFILE"
|
||
fi
|
||
}
|
||
|
||
function _CheckLocksLocal {
|
||
local lockfile="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ -f "$lockfile" ]; then
|
||
local lockfile_content=$(cat $lockfile)
|
||
Logger "Master lock pid present: $lockfile_content" "DEBUG"
|
||
local lock_pid=${lockfile_content%@*}
|
||
local lock_sync_id=${lockfile_content#*@}
|
||
ps -p$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]. Cannot start." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function _CheckLocksRemote { #TODO: Rewrite this a bit more beautiful
|
||
local lockfile="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
cmd="$SSH_CMD \"if [ -f \\\"$lockfile\\\" ]; then cat \\\"$lockfile\\\"; fi\" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID &"
|
||
eval $cmd
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
if [ -f $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID ]; then
|
||
local lockfile_content=$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)
|
||
else
|
||
Logger "Cannot get remote lockfile." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
|
||
local lock_pid=${lockfile_content%@*}
|
||
local lock_sync_id=${lockfile_content#*@}
|
||
|
||
if [ "$lock_pid" != "" ] && [ "$lock_sync_id" != "" ]; then
|
||
Logger "Remote lock is: $lock_pid@$lock_sync_id" "DEBUG"
|
||
|
||
ps -p$lock_pid > /dev/null 2>&1
|
||
if [ $? != 0 ]; then
|
||
if [ "$lock_sync_id" == "$SYNC_ID" ]; then
|
||
Logger "There is a dead osync lock on target replica that corresponds to this initiator sync id [$lock_sync_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 [$lock_sync_id]. Forcing resume." "WARN"
|
||
else
|
||
Logger "There is a dead osync lock on target replica that does not correspond to this initiator sync-id [$lock_sync_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_sync_id]. Cannot start." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function CheckLocks {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ $_NOLOCKS -eq 1 ]; then
|
||
return 0
|
||
fi
|
||
|
||
# Don't 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_LOCKFILE"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_CheckLocksLocal "$TARGET_LOCKFILE"
|
||
else
|
||
_CheckLocksRemote "$TARGET_LOCKFILE"
|
||
fi
|
||
|
||
WriteLockFiles
|
||
}
|
||
|
||
function _UnlockReplicasLocal {
|
||
local lockfile="${1}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
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}"
|
||
__CheckArguments 1 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
cmd="$SSH_CMD \"if [ -f \\\"$lockfile\\\" ]; then $COMMAND_SUDO rm -f \\\"$lockfile\\\"; fi 2>&1\" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID &"
|
||
eval $cmd
|
||
WaitForTaskCompletion $! 0 1800 $FUNCNAME
|
||
if [ $? != 0 ]; then
|
||
Logger "Could not unlock remote replica." "ERROR"
|
||
Logger "Command Output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
else
|
||
Logger "Removed remote replica lock." "DEBUG"
|
||
fi
|
||
}
|
||
|
||
function UnlockReplicas {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ $_NOLOCKS -eq 1 ]; then
|
||
return 0
|
||
fi
|
||
|
||
_UnlockReplicasLocal "$INITIATOR_LOCKFILE"
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_UnlockReplicasLocal "$TARGET_LOCKFILE"
|
||
else
|
||
_UnlockReplicasRemote "$TARGET_LOCKFILE"
|
||
fi
|
||
}
|
||
|
||
###### 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 eval $rsync_cmd on a remote host.
|
||
## So i'm 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)
|
||
__CheckArguments 3 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
local escaped_replica_path=$(EscapeSpaces "$replica_path") #TODO: See if escpaed still needed when using ' instead of " for command eval
|
||
|
||
Logger "Creating $replica_type replica file list [$replica_path]." "NOTICE"
|
||
if [ "$REMOTE_SYNC" == "yes" ] && [ "$replica_type" == "target" ]; then
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE -e \"$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 > \"$RUN_DIR/osync_$replica_type_$SCRIPT_PID\" &"
|
||
else
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --list-only \"$replica_path/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/osync_$replica_type_$SCRIPT_PID\" &"
|
||
fi
|
||
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
|
||
## Redirect commands stderr here to get rsync stderr output in logfile
|
||
eval $rsync_cmd 2>> "$LOG_FILE"
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
## Retval 24 = some files vanished while creating list
|
||
if ([ $retval == 0 ] || [ $retval == 24 ]) && [ -f $RUN_DIR/osync_$replica_type_$SCRIPT_PID ]; then
|
||
mv -f $RUN_DIR/osync_$replica_type_$SCRIPT_PID "$INITIATOR_STATE_DIR/$replica_type$tree_filename"
|
||
return $?
|
||
else
|
||
Logger "Cannot create replica file list." "CRITICAL"
|
||
exit $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 couldn't be deleted on last run, will be prefixed with replica type
|
||
__CheckArguments 5 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
# TODO: Check why external filenames are used (see _DRYRUN option because of NOSUFFIX)
|
||
|
||
Logger "Creating $replica_type replica deleted file list." "NOTICE"
|
||
if [ -f "$INITIATOR_STATE_DIR/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX" ]; then
|
||
## Same functionnality, comm is much faster than grep but is not available on every platform
|
||
if type -p comm > /dev/null 2>&1
|
||
then
|
||
cmd="comm -23 \"$INITIATOR_STATE_DIR/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" \"$INITIATOR_STATE_DIR/$replica_type$tree_file_current\" > \"$INITIATOR_STATE_DIR/$replica_type$deleted_list_file\""
|
||
else
|
||
## The || : forces the command to have a good result
|
||
cmd="(grep -F -x -v -f \"$INITIATOR_STATE_DIR/$replica_type$tree_file_current\" \"$INITIATOR_STATE_DIR/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" || :) > \"$INITIATOR_STATE_DIR/$replica_type$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_STATE_DIR/$replica_type$deleted_failed_list_file" ]; then
|
||
cat "$INITIATOR_STATE_DIR/$replica_type$deleted_failed_list_file" >> "$INITIATOR_STATE_DIR/$replica_type$deleted_list_file"
|
||
rm -f "$INITIATOR_STATE_DIR/$replica_type$deleted_failed_list_file"
|
||
fi
|
||
|
||
return $retval
|
||
else
|
||
touch "$INITIATOR_STATE_DIR/$replica_type$deleted_list_file"
|
||
return $retval
|
||
fi
|
||
}
|
||
|
||
# sync_update(source replica, destination replica, delete_list_filename)
|
||
function sync_update {
|
||
local source_replica="${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
|
||
__CheckArguments 3 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
Logger "Updating $destination_replica replica." "NOTICE"
|
||
if [ "$source_replica" == "initiator" ]; then
|
||
SOURCE_DIR="$INITIATOR_SYNC_DIR"
|
||
ESC_SOURCE_DIR=$(EscapeSpaces "$INITIATOR_SYNC_DIR")
|
||
DEST_DIR="$TARGET_SYNC_DIR"
|
||
ESC_DEST_DIR=$(EscapeSpaces "$TARGET_SYNC_DIR")
|
||
BACKUP_DIR="$TARGET_BACKUP"
|
||
else
|
||
SOURCE_DIR="$TARGET_SYNC_DIR"
|
||
ESC_SOURCE_DIR=$(EscapeSpaces "$TARGET_SYNC_DIR")
|
||
DEST_DIR="$INITIATOR_SYNC_DIR"
|
||
ESC_DEST_DIR=$(EscapeSpaces "$INITIATOR_SYNC_DIR")
|
||
BACKUP_DIR="$INITIATOR_BACKUP"
|
||
fi
|
||
|
||
if [ "$REMOTE_SYNC" == "yes" ]; then
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
if [ "$source_replica" == "initiator" ]; then
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $BACKUP_DIR --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from=\"$INITIATOR_STATE_DIR/$source_replica$delete_list_filename\" --exclude-from=\"$INITIATOR_STATE_DIR/$destination_replica$delete_list_filename\" \"$SOURCE_DIR/\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_DEST_DIR/\" > $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID 2>&1 &"
|
||
else
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $BACKUP_DIR --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from=\"$INITIATOR_STATE_DIR/$destination_replica$delete_list_filename\" --exclude-from=\"$INITIATOR_STATE_DIR/$source_replica$delete_list_filename\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SOURCE_DIR/\" \"$DEST_DIR/\" > $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID 2>&1 &"
|
||
fi
|
||
else
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $SYNC_OPTS $BACKUP_DIR --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from=\"$INITIATOR_STATE_DIR/$source_replica$delete_list_filename\" --exclude-from=\"$INITIATOR_STATE_DIR/$destination_replica$delete_list_filename\" \"$SOURCE_DIR/\" \"$DEST_DIR/\" > $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID 2>&1 &"
|
||
fi
|
||
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
|
||
eval "$rsync_cmd"
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
if [ $_VERBOSE -eq 1 ] && [ -f $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID ]; then
|
||
Logger "List:\n$(cat $RUN_DIR/osync_update_$destination_replica_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 $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID ]; then
|
||
Logger "Rsync output:\n$(cat $RUN_DIR/osync_update_$destination_replica_replica_$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
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 couldn't be deleted on last run, will be prefixed with replica type
|
||
__CheckArguments 4 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
## On every run, check wheter the next item is already deleted because it's included in a directory already deleted
|
||
previous_file=""
|
||
OLD_IFS=$IFS
|
||
IFS=$'\r\n'
|
||
for files in $(cat "$INITIATOR_STATE_DIR/$deleted_list_file")
|
||
do
|
||
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
|
||
if [ "$SOFT_DELETE" != "no" ]; then
|
||
if [ ! -d "$replica_dir$deletion_dir" ]; then
|
||
mkdir -p "$replica_dir$deletion_dir"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create replica deletion directory." "ERROR"
|
||
fi
|
||
fi
|
||
|
||
if [ $_VERBOSE -eq 1 ]; then
|
||
Logger "Soft deleting $replica_dir$files" "NOTICE"
|
||
fi
|
||
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
if [ -e "$replica_dir$deletion_dir/$files" ]; then
|
||
rm -rf "$replica_dir$deletion_dir/$files"
|
||
fi
|
||
# In order to keep full path on soft deletion, create parent directories before move
|
||
parentdir="$(dirname "$files")"
|
||
if [ "$parentdir" != "." ]; then
|
||
mkdir --parents "$replica_dir$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_STATE_DIR/$deleted_failed_list_file"
|
||
fi
|
||
fi
|
||
else
|
||
if [ $_VERBOSE -eq 1 ]; then
|
||
Logger "Deleting $replica_dir$files" "NOTICE"
|
||
fi
|
||
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
rm -rf "$replica_dir$files"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot delete $replica_dir$files" "ERROR"
|
||
echo "$files" >> "$INITIATOR_STATE_DIR/$deleted_failed_list_file"
|
||
fi
|
||
fi
|
||
fi
|
||
previous_file="$files"
|
||
fi
|
||
done
|
||
IFS=$OLD_IFS
|
||
}
|
||
|
||
function _delete_remote {
|
||
local replica_dir="${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 couldn't be deleted on last run, will be prefixed with replica type
|
||
__CheckArguments 4 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
## 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_STATE_DIR")"
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" \"$INITIATOR_STATE_DIR/$2\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_DEST_DIR/\" > $RUN_DIR/osync_remote_deletion_list_copy_$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." "CRITICAL"
|
||
if [ -f $RUN_DIR/osync_remote_deletion_list_copy_$SCRIPT_PID ]; then
|
||
Logger "$(cat $RUN_DIR/osync_remote_deletion_list_copy_$SCRIPT_PID)" "CRITICAL" #TODO: remote deletion is critical. local deletion isn't. What to do ?
|
||
fi
|
||
exit 1
|
||
fi
|
||
|
||
$SSH_CMD error_alert=0 sync_on_changes=$sync_on_changes _SILENT=$_SILENT _DEBUG=$_DEBUG _DRYRUN=$_DRYRUN _VERBOSE=$_VERBOSE COMMAND_SUDO=$COMMAND_SUDO FILE_LIST="$(EscapeSpaces "$TARGET_STATE_DIR/$deleted_list_file")" REPLICA_DIR="$(EscapeSpaces "$replica_dir")" DELETE_DIR="$(EscapeSpaces "$deletion_dir")" FAILED_DELETE_LIST="$(EscapeSpaces "$TARGET_STATE_DIR/$deleted_failed_list_file")" 'bash -s' << 'ENDSSH' > $RUN_DIR/osync_remote_deletion_$SCRIPT_PID 2>&1 &
|
||
|
||
## The following lines are executed remotely
|
||
function _logger {
|
||
local value="${1}" # What to log
|
||
echo -e "$value" >> "$LOG_FILE"
|
||
|
||
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
|
||
|
||
# Special case in daemon mode we should timestamp instead of counting seconds
|
||
if [ $sync_on_changes -eq 1 ]; then
|
||
prefix="$(date) - "
|
||
else
|
||
prefix="RTIME: $SECONDS - "
|
||
fi
|
||
|
||
if [ "$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"
|
||
|
||
## On every run, check wheter the next item is already deleted because it's included in a directory already deleted
|
||
previous_file=""
|
||
OLD_IFS=$IFS
|
||
IFS=$'\r\n'
|
||
for files in $(cat "$FILE_LIST")
|
||
do
|
||
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
|
||
if [ ! -d "$REPLICA_DIR$DELETE_DIR" ]; then
|
||
$COMMAND_SUDO mkdir -p "$REPLICA_DIR$DELETE_DIR"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot create replica deletion directory." "ERROR"
|
||
fi
|
||
fi
|
||
|
||
if [ "$SOFT_DELETE" != "no" ]; then
|
||
if [ $_VERBOSE -eq 1 ]; then
|
||
Logger "Soft deleting $REPLICA_DIR$files" "NOTICE"
|
||
fi
|
||
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
if [ -e "$REPLICA_DIR$DELETE_DIR/$files" ]; then
|
||
$COMMAND_SUDO rm -rf "$REPLICA_DIR$DELETE_DIR/$files"
|
||
fi
|
||
# In order to keep full path on soft deletion, create parent directories before move
|
||
parentdir="$(dirname "$files")"
|
||
if [ "$parentdir" != "." ]; then
|
||
$COMMAND_SUDO mkdir --parents "$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
|
||
else
|
||
if [ $_VERBOSE -eq 1 ]; then
|
||
Logger "Deleting $REPLICA_DIR$files" "NOTICE"
|
||
fi
|
||
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
$COMMAND_SUDO rm -rf "$REPLICA_DIR$files"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot delete $REPLICA_DIR$files" "ERROR"
|
||
echo "$files" >> "$TARGET_STATE_DIR/$FAILED_DELETE_LIST"
|
||
fi
|
||
fi
|
||
fi
|
||
previous_file="$files"
|
||
fi
|
||
done
|
||
IFS=$OLD_IFS
|
||
ENDSSH
|
||
|
||
## Need to add a trivial sleep time to give ssh time to log to local file
|
||
sleep 5
|
||
|
||
## Copy back the deleted failed file list
|
||
ESC_SOURCE_FILE="$(EscapeSpaces "$TARGET_STATE_DIR/$deleted_failed_list_file")"
|
||
#TODO: Need to check if file exists prior to copy (or add a filemask and copy all state files)
|
||
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SOURCE_FILE\" \"$INITIATOR_STATE_DIR\" > $RUN_DIR/osync_remote_failed_deletion_list_copy_$SCRIPT_PID"
|
||
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
|
||
eval $rsync_cmd 2>> "$LOG_FILE"
|
||
if [ $? != 0 ]; then
|
||
Logger "Cannot copy back the failed deletion list to initiator replica." "CRITICAL"
|
||
if [ -f $RUN_DIR/osync_remote_failed_deletion_list_copy_$SCRIPT_PID ]; then
|
||
Logger "$(cat $RUN_DIR/osync_remote_failed_deletion_list_copy_$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
exit 1
|
||
fi
|
||
|
||
|
||
|
||
exit $?
|
||
}
|
||
|
||
|
||
# delete_propagation(replica name, deleted_list_filename, deleted_failed_file_list)
|
||
function deletion_propagation {
|
||
local replica_type="${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 couldn't be deleted on last run, will be prefixed with replica type
|
||
__CheckArguments 3 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
Logger "Propagating deletions to $replica_type replica." "NOTICE"
|
||
|
||
if [ "$replica_type" == "initiator" ]; then
|
||
REPLICA_DIR="$INITIATOR_SYNC_DIR"
|
||
DELETE_DIR="$INITIATOR_DELETE_DIR"
|
||
|
||
_delete_local "$REPLICA_DIR" "target$deleted_list_file" "$DELETE_DIR" "target$deleted_failed_list_file" &
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
if [ $retval != 0 ]; then
|
||
Logger "Deletion on replica $replica_type failed." "CRITICAL"
|
||
exit 1
|
||
fi
|
||
else
|
||
REPLICA_DIR="$TARGET_SYNC_DIR"
|
||
DELETE_DIR="$TARGET_DELETE_DIR"
|
||
|
||
if [ "$REMOTE_SYNC" == "yes" ]; then
|
||
_delete_remote "$REPLICA_DIR" "initiator$deleted_list_file" "$DELETE_DIR" "initiator$deleted_failed_list_file" &
|
||
else
|
||
_delete_local "$REPLICA_DIR" "initiator$deleted_list_file" "$DELETE_DIR" "initiator$deleted_failed_list_file" &
|
||
fi
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
if [ $retval == 0 ]; then
|
||
if [ -f $RUN_DIR/osync_remote_deletion_$SCRIPT_PID ] && [ $_VERBOSE -eq 1 ]; then
|
||
Logger "Remote:\n$(cat $RUN_DIR/osync_remote_deletion_$SCRIPT_PID)" "DEBUG"
|
||
fi
|
||
return $retval
|
||
else
|
||
Logger "Deletion on remote system failed." "CRITICAL"
|
||
if [ -f $RUN_DIR/osync_remote_deletion_$SCRIPT_PID ]; then
|
||
Logger "Remote:\n$(cat $RUN_DIR/osync_remote_deletion_$SCRIPT_PID)" "CRITICAL"
|
||
fi
|
||
exit 1
|
||
fi
|
||
fi
|
||
}
|
||
|
||
###### Sync function in 5 steps of each 2 runs (functions above)
|
||
######
|
||
###### Step 1: Create current tree list for initiator and target replicas (Steps 1M and 1S)
|
||
###### Step 2: Create deleted file list for initiator and target replicas (Steps 2M and 2S)
|
||
###### Step 3: Update initiator and target replicas (Steps 3M and 3S, order depending on conflict prevalence)
|
||
###### Step 4: Deleted file propagation to initiator and target replicas (Steps 4M and 4S)
|
||
###### Step 5: Create after run tree list for initiator and target replicas (Steps 5M and 5S)
|
||
|
||
function Sync {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
Logger "Starting synchronization task." "NOTICE"
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
if [ -f "$INITIATOR_LAST_ACTION" ] && [ "$RESUME_SYNC" != "no" ]; then
|
||
resume_sync=$(cat "$INITIATOR_LAST_ACTION")
|
||
if [ -f "$INITIATOR_RESUME_COUNT" ]; then
|
||
resume_count=$(cat "$INITIATOR_RESUME_COUNT")
|
||
else
|
||
resume_count=0
|
||
fi
|
||
|
||
if [ $resume_count -lt $RESUME_TRY ]; then
|
||
if [ "$resume_sync" != "sync.success" ]; then
|
||
Logger "WARNING: Trying to resume aborted osync execution on $($STAT_CMD "$INITIATOR_LAST_ACTION") at task [$resume_sync]. [$resume_count] previous tries." "WARN"
|
||
echo $(($resume_count+1)) > "$INITIATOR_RESUME_COUNT"
|
||
else
|
||
resume_sync=none
|
||
fi
|
||
else
|
||
Logger "Will not resume aborted osync execution. Too many resume tries [$resume_count]." "WARN"
|
||
echo "noresume" > "$INITIATOR_LAST_ACTION"
|
||
echo "0" > "$INITIATOR_RESUME_COUNT"
|
||
resume_sync=none
|
||
fi
|
||
else
|
||
resume_sync=none
|
||
fi
|
||
|
||
|
||
################################################################################################################################################# Actual sync begins here
|
||
|
||
## This replaces the case statement because ;& operator is not supported in bash 3.2... Code is more messy than case :(
|
||
if [ "$resume_sync" == "none" ] || [ "$resume_sync" == "noresume" ] || [ "$resume_sync" == "initiator-replica-tree.fail" ]; then
|
||
#initiator_tree_current
|
||
tree_list "$INITIATOR_SYNC_DIR" initiator "$TREE_CURRENT_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[0]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[0]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[0]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[1]}.fail" ]; then
|
||
#target_tree_current
|
||
tree_list "$TARGET_SYNC_DIR" target "$TREE_CURRENT_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[1]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[1]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[1]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[2]}.fail" ]; then
|
||
delete_list initiator "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[2]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNc_ACTION[2]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[2]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.fail" ]; then
|
||
delete_list target "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[3]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[3]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.fail" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ]; then
|
||
if [ "$CONFLICT_PREVALANCE" != "initiator" ]; then
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.fail" ]; then
|
||
sync_update target initiator "$DELETED_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[4]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[4]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ]; then
|
||
sync_update initiator target "$DELETED_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[5]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[5]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
else
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ]; then
|
||
sync_update initiator target "$DELETED_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[5]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[5]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.fail" ]; then
|
||
sync_update target initiator "$DELETED_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[4]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[4]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
fi
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.fail" ]; then
|
||
deletion_propagation target "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[6]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[6]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[7]}.fail" ]; then
|
||
deletion_propagation initiator "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[7]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[7]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[7]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[8]}.fail" ]; then
|
||
#initiator_tree_after
|
||
tree_list "$INITIATOR_SYNC_DIR" initiator "$TREE_AFTER_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[8]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[8]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[8]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[9]}.fail" ]; then
|
||
#target_tree_after
|
||
tree_list "$TARGET_SYNC_DIR" target "$TREE_AFTER_FILENAME"
|
||
if [ $? == 0 ]; then
|
||
echo "${SYNC_ACTION[9]}.success" > "$INITIATOR_LAST_ACTION"
|
||
else
|
||
echo "${SYNC_ACTION[9]}.fail" > "$INITIATOR_LAST_ACTION"
|
||
fi
|
||
resume_sync="resumed"
|
||
fi
|
||
|
||
Logger "Finished synchronization task." "NOTICE"
|
||
echo "${SYNC_ACTION[10]}" > "$INITIATOR_LAST_ACTION"
|
||
|
||
echo "0" > "$INITIATOR_RESUME_COUNT"
|
||
}
|
||
|
||
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}"
|
||
__CheckArguments 3 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ -d "$replica_deletion_path" ]; then
|
||
if [ $_DRYRUN -eq 1 ]; then
|
||
Logger "Listing files older than $change_time days on [$replica_type] replica. Won't 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
|
||
$FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete file {}" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
$FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete directory {}" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
$FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} rm -f "{}" && $FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} rm -rf "{}" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID 2>&1 &
|
||
else
|
||
Dummy &
|
||
fi
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
if [ $retval -ne 0 ]; then
|
||
Logger "Error while executing cleanup on [$replica_type] replica." "ERROR"
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
else
|
||
Logger "Cleanup complete on [$replica_type] replica." "NOTICE"
|
||
fi
|
||
elif [ -d "$replica_deletion_path" ] && ! [ -w "$replica_deletion_path" ]; then
|
||
Logger "Warning: [$replica_type] replica dir [$replica_deletion_path] isn't 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}"
|
||
__CheckArguments 3 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CheckConnectivity3rdPartyHosts
|
||
CheckConnectivityRemoteHost
|
||
|
||
if [ $_DRYRUN -eq 1 ]; then
|
||
Logger "Listing files older than $change_time days on target replica. Won't remove anything." "NOTICE"
|
||
else
|
||
Logger "Removing files older than $change_time days on target replica." "NOTICE"
|
||
fi
|
||
|
||
if [ $_VERBOSE -eq 1 ]; then
|
||
# Cannot launch log function from xargs, ugly hack
|
||
eval "$SSH_CMD \"if [ -w \\\"$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 {} && $REMOTE_FIND_CMD \\\"$replica_deletion_path/\\\" -type d -empty -ctime $change_time -print0 | xargs -0 -I {} echo Will delete directory {}; fi\"" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
fi
|
||
|
||
if [ $_DRYRUN -ne 1 ]; then
|
||
eval "$SSH_CMD \"if [ -w \\\"$replica_deletion_path\\\" ]; then $COMMAND_SUDO $REMOTE_FIND_CMD \\\"$replica_deletion_path/\\\" -type f -ctime +$change_time -print0 | xargs -0 -I {} rm -f \\\"{}\\\" && $REMOTE_FIND_CMD \\\"$replica_deletion_path/\\\" -type d -empty -ctime $change_time -print0 | xargs -0 -I {} rm -rf \\\"{}\\\"; fi 2>&1\"" > $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID &
|
||
else
|
||
Dummy &
|
||
fi
|
||
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME $FUNCNAME
|
||
retval=$?
|
||
if [ $retval -ne 0 ]; then
|
||
Logger "Error while executing cleanup on remote target replica." "ERROR"
|
||
Logger "Command output:\n$(cat $RUN_DIR/osync.$FUNCNAME.$SCRIPT_PID)" "NOTICE"
|
||
else
|
||
Logger "Cleanup complete on target replica." "NOTICE"
|
||
fi
|
||
}
|
||
|
||
function SoftDelete {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if [ "$CONFLICT_BACKUP" != "no" ] && [ $CONFLICT_BACKUP_DAYS -ne 0 ]; then
|
||
Logger "Running conflict backup cleanup." "NOTICE"
|
||
|
||
_SoftDeleteLocal "intiator" "$INITIATOR_SYNC_DIR$INITIATOR_BACKUP_DIR" $CONFLICT_BACKUP_DAYS
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_SoftDeleteLocal "target" "$TARGET_SYNC_DIR$TARGET_BACKUP_DIR" $CONFLICT_BACKUP_DAYS
|
||
else
|
||
_SoftDeleteRemote "target" "$TARGET_SYNC_DIR$TARGET_BACKUP_DIR" $CONFLICT_BACKUP_DAYS
|
||
fi
|
||
fi
|
||
|
||
if [ "$SOFT_DELETE" != "no" ] && [ $SOFT_DELETE_DAYS -ne 0 ]; then
|
||
Logger "Running soft deletion cleanup." "NOTICE"
|
||
|
||
_SoftDeleteLocal "initiator" "$INITIATOR_SYNC_DIR$INITIATOR_DELETE_DIR" $SOFT_DELETE_DAYS
|
||
if [ "$REMOTE_SYNC" != "yes" ]; then
|
||
_SoftDeleteLocal "target" "$TARGET_SYNC_DIR$TARGET_DELETE_DIR" $SOFT_DELETE_DAYS
|
||
else
|
||
_SoftDeleteRemote "target" "$TARGET_SYNC_DIR$TARGET_DELETE_DIR" $SOFT_DELETE_DAYS
|
||
fi
|
||
fi
|
||
}
|
||
|
||
function Init {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
# 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 [ $sync_on_changes -eq 0 ]; then
|
||
trap TrapStop SIGINT SIGKILL SIGHUP SIGTERM SIGQUIT
|
||
trap TrapQuit SIGKILL EXIT
|
||
else
|
||
trap TrapQuit SIGTERM EXIT SIGKILL SIGHUP SIGQUIT
|
||
fi
|
||
|
||
if [ "$_DEBUG" == "yes" ]; then
|
||
trap 'TrapError ${LINENO} $?' ERR
|
||
fi
|
||
|
||
MAIL_ALERT_MSG="Warning: Execution of osync instance $OSYNC_ID (pid $SCRIPT_PID) as $LOCAL_USER@$LOCAL_HOST produced errors on $(date)."
|
||
|
||
## Test if target dir is a ssh uri, and if yes, break it down it its values
|
||
if [ "${TARGET_SYNC_DIR:0:6}" == "ssh://" ]; then
|
||
REMOTE_SYNC="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="${TARGET_SYNC_DIR%/}/"
|
||
|
||
INITIATOR_STATE_DIR="$INITIATOR_SYNC_DIR$OSYNC_DIR/state"
|
||
TARGET_STATE_DIR="$TARGET_SYNC_DIR$OSYNC_DIR/state"
|
||
STATE_DIR="$OSYNC_DIR/state"
|
||
INITIATOR_LOCKFILE="$INITIATOR_STATE_DIR/lock"
|
||
TARGET_LOCKFILE="$TARGET_STATE_DIR/lock"
|
||
|
||
## Working directories to keep backups of updated / deleted files
|
||
INITIATOR_BACKUP_DIR="$OSYNC_DIR/backups"
|
||
INITIATOR_DELETE_DIR="$OSYNC_DIR/deleted"
|
||
TARGET_BACKUP_DIR="$OSYNC_DIR/backups"
|
||
TARGET_DELETE_DIR="$OSYNC_DIR/deleted"
|
||
|
||
## Partial downloads dirs
|
||
PARTIAL_DIR=$OSYNC_DIR"_partial"
|
||
|
||
## SSH compression
|
||
if [ "$SSH_COMPRESSION" != "no" ]; then
|
||
SSH_COMP=-C
|
||
else
|
||
SSH_COMP=
|
||
fi
|
||
|
||
## Define which runner (local bash or distant ssh) to use for standard commands and rsync commands
|
||
if [ "$REMOTE_SYNC" == "yes" ]; then
|
||
SSH_CMD="$(type -p ssh) $SSH_COMP -i $SSH_RSA_PRIVATE_KEY $REMOTE_USER@$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 -p $REMOTE_PORT"
|
||
fi
|
||
|
||
## Support for older config files without RSYNC_EXECUTABLE option
|
||
if [ "$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="$RSYNC_EXECUTABLE"
|
||
fi
|
||
COMMAND_SUDO=""
|
||
fi
|
||
|
||
## Set rsync default arguments
|
||
RSYNC_ARGS="-rlptgoD"
|
||
|
||
if [ "$PRESERVE_ACL" == "yes" ]; then
|
||
RSYNC_ARGS=$RSYNC_ARGS" -A"
|
||
fi
|
||
if [ "$PRESERVE_XATTR" == "yes" ]; then
|
||
RSYNC_ARGS=$RSYNC_ARGS" -X"
|
||
fi
|
||
if [ "$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_ARGS=$RSYNC_ARGS" --checksum"
|
||
fi
|
||
if [ $_DRYRUN -eq 1 ]; then
|
||
RSYNC_ARGS=$RSYNC_ARGS" -n"
|
||
DRY_WARNING="/!\ DRY RUN"
|
||
fi
|
||
|
||
if [ "$BANDWIDTH" != "" ] && [ "$BANDWIDTH" != "0" ]; then
|
||
RSYNC_ARGS=$RSYNC_ARGS" --bwlimit=$BANDWIDTH"
|
||
fi
|
||
|
||
## 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
|
||
|
||
if [ "$PARTIAL" == "yes" ]; then
|
||
SYNC_OPTS=$SYNC_OPTS" --partial --partial-dir=\"$PARTIAL_DIR\""
|
||
RSYNC_EXCLUDE="$RSYNC_EXCLUDE --exclude=\"$PARTIAL_DIR\""
|
||
fi
|
||
|
||
## Conflict options
|
||
if [ "$CONFLICT_BACKUP" != "no" ]; then
|
||
INITIATOR_BACKUP="--backup --backup-dir=\"$INITIATOR_BACKUP_DIR\""
|
||
TARGET_BACKUP="--backup --backup-dir=\"$TARGET_BACKUP_DIR\""
|
||
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
|
||
|
||
## Add Rsync exclude patterns
|
||
RsyncExcludePattern
|
||
## Add Rsync exclude from file
|
||
RsyncExcludeFrom
|
||
|
||
## Filenames for state files
|
||
if [ $_DRYRUN -eq 1 ]; then
|
||
dry_suffix="-dry"
|
||
fi
|
||
|
||
TREE_CURRENT_FILENAME="-tree-current-$SYNC_ID$dry_suffix"
|
||
TREE_AFTER_FILENAME="-tree-after-$SYNC_ID$dry_suffix"
|
||
TREE_AFTER_FILENAME_NO_SUFFIX="-tree-after-$SYNC_ID"
|
||
DELETED_LIST_FILENAME="-deleted-list-$SYNC_ID$dry_suffix"
|
||
FAILED_DELETE_LIST_FILENAME="-failed-delete-$SYNC_ID$dry_suffix"
|
||
INITIATOR_LAST_ACTION="$INITIATOR_STATE_DIR/last-action-$SYNC_ID$dry_suffix"
|
||
INITIATOR_RESUME_COUNT="$INITIATOR_STATE_DIR/resume-count-$SYNC_ID$dry_suffix"
|
||
|
||
## Sync function actions (0-9)
|
||
SYNC_ACTION=(
|
||
'initiator-replica-tree'
|
||
'target-replica-tree'
|
||
'initiator-deleted-list'
|
||
'target-deleted-list'
|
||
'update-initiator-replica'
|
||
'update-target-replica'
|
||
'delete-propagation-target'
|
||
'delete-propagation-initiator'
|
||
'initiator-replica-tree-after'
|
||
'target-replica-tree-after'
|
||
'sync.success'
|
||
)
|
||
|
||
## Set compression executable and extension
|
||
COMPRESSION_LEVEL=3
|
||
if type -p xz > /dev/null 2>&1
|
||
then
|
||
COMPRESSION_PROGRAM="| xz -$COMPRESSION_LEVEL"
|
||
COMPRESSION_EXTENSION=.xz
|
||
elif type -p lzma > /dev/null 2>&1
|
||
then
|
||
COMPRESSION_PROGRAM="| lzma -$COMPRESSION_LEVEL"
|
||
COMPRESSION_EXTENSION=.lzma
|
||
elif type -p pigz > /dev/null 2>&1
|
||
then
|
||
COMPRESSION_PROGRAM="| pigz -$COMPRESSION_LEVEL"
|
||
COMPRESSION_EXTENSION=.gz
|
||
COMPRESSION_OPTIONS=--rsyncable
|
||
elif type -p gzip > /dev/null 2>&1
|
||
then
|
||
COMPRESSION_PROGRAM="| gzip -$COMPRESSION_LEVEL"
|
||
COMPRESSION_EXTENSION=.gz
|
||
COMPRESSION_OPTIONS=--rsyncable
|
||
else
|
||
COMPRESSION_PROGRAM=
|
||
COMPRESSION_EXTENSION=
|
||
fi
|
||
ALERT_LOG_FILE="$ALERT_LOG_FILE$COMPRESSION_EXTENSION"
|
||
}
|
||
|
||
function InitLocalOSSettings {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
## If running under Msys, some commands don't run the same way
|
||
## Using mingw version of find instead of windows one
|
||
## Getting running processes is quite different
|
||
## Ping command isn't the same
|
||
if [ "$LOCAL_OS" == "msys" ]; then
|
||
FIND_CMD=$(dirname $BASH)/find
|
||
#TODO: The following command needs to be checked on msys. Does the $1 variable substitution work ?
|
||
# PROCESS_TEST_CMD assumes there is a variable $pid
|
||
PROCESS_TEST_CMD='ps -a | awk "{\$1=\$1}\$1" | awk "{print \$1}" | grep $pid'
|
||
PING_CMD="ping -n 2"
|
||
else
|
||
FIND_CMD=find
|
||
# PROCESS_TEST_CMD assumes there is a variable $pid
|
||
PROCESS_TEST_CMD='ps -p$pid'
|
||
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\""
|
||
else
|
||
STAT_CMD="stat --format %y"
|
||
fi
|
||
}
|
||
|
||
function InitRemoteOSSettings {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
## MacOSX does not use the -E parameter like Linux or BSD does (-E is mapped to extended attrs instead of preserve executability)
|
||
if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ]; then
|
||
RSYNC_ARGS=$RSYNC_ARGS" -E"
|
||
fi
|
||
|
||
if [ "$REMOTE_OS" == "msys" ]; then
|
||
REMOTE_FIND_CMD=$(dirname $BASH)/find
|
||
else
|
||
REMOTE_FIND_CMD=find
|
||
fi
|
||
}
|
||
|
||
function Main {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
CreateStateDirs
|
||
CheckLocks
|
||
Sync
|
||
}
|
||
|
||
function Usage {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
echo "$PROGRAM $PROGRAM_VERSION $PROGRAM_BUILD"
|
||
echo $AUTHOR
|
||
echo $CONTACT
|
||
echo ""
|
||
echo -e "\e[41mWARNING: This is an unstable dev build\e[0m"
|
||
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 "--sync-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 {
|
||
__CheckArguments 0 $# $FUNCNAME "$*" #__WITH_PARANOIA_DEBUG
|
||
|
||
if ! type -p 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
|
||
eval $cmd
|
||
retval=$?
|
||
if [ $retval != 0 ]; then
|
||
Logger "osync child exited with error." "CRITICAL"
|
||
exit $retval
|
||
fi
|
||
|
||
Logger "#### Monitoring now." "NOTICE"
|
||
inotifywait --exclude $OSYNC_DIR $RSYNC_EXCLUDE -qq -r -e create -e modify -e delete -e move -e attrib --timeout "$MAX_WAIT" "$INITIATOR_SYNC_DIR" &
|
||
OSYNC_SUB_PID=$!
|
||
wait $OSYNC_SUB_PID
|
||
retval=$?
|
||
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 $MIN_WAIT
|
||
fi
|
||
done
|
||
|
||
}
|
||
|
||
# Comand line argument flags
|
||
_DRYRUN=0
|
||
_SILENT=0
|
||
|
||
if [ "$_DEBUG" == "yes" ]
|
||
then
|
||
_VERBOSE=1
|
||
else
|
||
_VERBOSE=0
|
||
fi
|
||
|
||
stats=0
|
||
PARTIAL=0
|
||
FORCE_UNLOCK=0
|
||
no_maxtime=0
|
||
# Alert flags
|
||
opts=""
|
||
soft_alert_total=0
|
||
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=\"$SSH_RSA_PRIVATE_KEY\""
|
||
;;
|
||
--sync-id=*)
|
||
SYNC_ID=${i##*=}
|
||
opts=$opts" --sync-id=\"$SYNC_ID\""
|
||
;;
|
||
--on-changes)
|
||
sync_on_changes=1
|
||
_NOLOCKS=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# *}"
|
||
|
||
CheckEnvironment
|
||
if [ $? == 0 ]
|
||
then
|
||
|
||
## Here we set default options for quicksync tasks when no configuration file is provided.
|
||
|
||
if [ $quick_sync -eq 2 ]; then
|
||
if [ "$SYNC_ID" == "" ]; then
|
||
SYNC_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_SYNC=no
|
||
else
|
||
ConfigFile="${1}"
|
||
LoadConfigFile "$ConfigFile"
|
||
fi
|
||
|
||
if [ "$LOGFILE" == "" ]; then
|
||
if [ -w /var/log ]; then
|
||
LOG_FILE=/var/log/osync_$SYNC_ID.log
|
||
else
|
||
LOG_FILE=./osync_$SYNC_ID.log
|
||
fi
|
||
else
|
||
LOG_FILE="$LOGFILE"
|
||
fi
|
||
|
||
GetLocalOS
|
||
InitLocalOSSettings
|
||
Init
|
||
GetRemoteOS
|
||
InitRemoteOSSettings
|
||
|
||
if [ $sync_on_changes -eq 1 ]; then
|
||
SyncOnChanges
|
||
else
|
||
DATE=$(date)
|
||
Logger "-------------------------------------------------------------" "NOTICE"
|
||
Logger "$DRY_WARNING $DATE - $PROGRAM $PROGRAM_VERSION script begin." "NOTICE"
|
||
Logger "-------------------------------------------------------------" "NOTICE"
|
||
Logger "Sync task [$SYNC_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)" "NOTICE"
|
||
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
|
||
RunAfterHook
|
||
fi
|
||
else
|
||
Logger "Environment not suitable to run osync." "CRITICAL"
|
||
exit 1
|
||
fi
|