Initial osync upload
This commit is contained in:
deajan
parent
fac3638ab0
commit
973e032835
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@ -1,7 +1,7 @@
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osync
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osync
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=====
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=====
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A two way sync script based on rsync that merges obackup script fault tolerance with sync logic based on bitpocket
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A two way sync script based on rsync that merges obackup script fault tolerance with sync logic derived from bitpocket project.
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## About
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## About
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@ -14,7 +14,8 @@ I then decided to merge my obackup codebase with bitpocket's sync core, osync wa
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## Installation
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## Installation
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No public release yet (expect it in mid July)
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Not even beta ready yet. The whole code is not stable at all.
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Hopefully will work by the end of July.
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## Author
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## Author
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@ -1,19 +1,25 @@
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#!/bin/bash
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#!/bin/bash
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##### Two way sync script
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#### Osyc
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##### (C) 2013 by Orsiris "Ozy" de Jong | ozy@badministrateur.com
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## Rsync based two way sync engine. Master/slave setup.
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OSYNC_VERSION=0.0 #### Build 1806201301
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OSYNC_VERSION=0.4
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OSYNC_BUILD=1507201301
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DEBUG=yes
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DEBUG=no
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SCRIPT_PID=$$
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SCRIPT_PID=$$
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LOCAL_USER=$(whoami)
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LOCAL_USER=$(whoami)
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LOCAL_HOST=$(hostname)
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LOCAL_HOST=$(hostname)
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## Flags
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## Default log file until config file is loaded
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error_alert=0
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LOG_FILE=/var/log/osync.log
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dryrun=0
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silent=0
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## Working directory on master
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OSYNC_DIR=".osync_workdir"
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## Log a state message every $KEEP_LOGGING seconds. Should not be equal to soft or hard execution time so your log won't be unnecessary big.
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KEEP_LOGGING=1801
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function Log
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function Log
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{
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{
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@ -41,16 +47,6 @@ function TrapError
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fi
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fi
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}
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}
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function TrapStop
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{
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LogError " /!\ WARNING: Manual exit of sync script. Synchronization may be in inconsistent state."
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if [ "$DEBUG" == "no" ]
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then
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CleanUp
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fi
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exit 1
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}
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function Spinner
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function Spinner
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{
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{
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if [ $silent -eq 1 ]
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if [ $silent -eq 1 ]
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@ -86,19 +82,11 @@ function Spinner
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esac
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esac
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}
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}
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function Dummy
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function CleanUp
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{
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{
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exit 1;
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rm -f /dev/shm/osync_config_$SCRIPT_PID
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}
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rm -f /dev/shm/osync_run_local_$SCRIPT_PID
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rm -f /dev/shm/osync_run_remote_$SCRIPT_PID
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function StripQuotes
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{
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echo $(echo $1 | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")
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}
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function EscapeSpaces
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{
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echo $(echo $1 | sed 's/ /\\ /g')
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}
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}
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function SendAlert
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function SendAlert
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@ -141,11 +129,11 @@ function LoadConfigFile
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{
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{
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if [ ! -f "$1" ]
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if [ ! -f "$1" ]
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then
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then
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LogError "Cannot load sync configuration file [$1]. Synchronization cannot start."
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LogError "Cannot load configuration file [$1]. Sync cannot start."
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return 1
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return 1
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elif [[ $1 != *.conf ]]
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elif [[ $1 != *.conf ]]
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then
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then
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LogError "Wrong configuration file supplied [$1]. Synchronization cannot start."
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LogError "Wrong configuration file supplied [$1]. Sync cannot start."
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else
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else
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egrep '^#|^[^ ]*=[^;&]*' "$1" > "/dev/shm/osync_config_$SCRIPT_PID"
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egrep '^#|^[^ ]*=[^;&]*' "$1" > "/dev/shm/osync_config_$SCRIPT_PID"
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source "/dev/shm/osync_config_$SCRIPT_PID"
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source "/dev/shm/osync_config_$SCRIPT_PID"
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@ -154,31 +142,19 @@ function LoadConfigFile
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function CheckEnvironment
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function CheckEnvironment
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{
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{
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sed --version > /dev/null 2>&1
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if [ $? != 0 ]
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then
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LogError "GNU coreutils not found (tested for sed --version). Synchronization cannot start."
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return 1
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fi
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if [ "$REMOTE_SYNC" == "yes" ]
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if [ "$REMOTE_SYNC" == "yes" ]
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then
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then
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if ! type -p ssh > /dev/null 2>&1
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if ! type -p ssh > /dev/null 2>&1
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then
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then
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LogError "ssh not present. Cannot start backup."
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LogError "ssh not present. Cannot start sync."
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return 1
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return 1
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fi
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fi
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fi
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fi
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if [ "$BACKUP_FILES" != "no" ]
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then
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if ! type -p rsync > /dev/null 2>&1
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if ! type -p rsync > /dev/null 2>&1
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then
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then
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LogError "rsync not present. Backup cannot start."
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LogError "rsync not present. Sync cannot start."
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return 1
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return 1
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fi
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fi
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fi
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}
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}
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# Waits for pid $1 to complete. Will log an alert if $2 seconds exec time exceeded unless $2 equals 0. Will stop task and log alert if $3 seconds exec time exceeded.
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# Waits for pid $1 to complete. Will log an alert if $2 seconds exec time exceeded unless $2 equals 0. Will stop task and log alert if $3 seconds exec time exceeded.
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@ -211,7 +187,6 @@ function WaitForTaskCompletition
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done
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done
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}
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}
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## Runs local command $1 and waits for completition in $2 seconds
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## Runs local command $1 and waits for completition in $2 seconds
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function RunLocalCommand
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function RunLocalCommand
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{
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{
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@ -257,8 +232,10 @@ function RunRemoteCommand
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LogError "Running command [$1] failed."
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LogError "Running command [$1] failed."
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fi
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fi
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Log "Command output:"
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if [ -f /dev/shm/osync_run_remote_$SCRIPT_PID ]
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Log "$(cat /dev/shm/osync_run_remote_$SCRIPT_PID)"
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then
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Log "Command output: $(cat /dev/shm/osync_run_remote_$SCRIPT_PID)"
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fi
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fi
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fi
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}
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}
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@ -290,20 +267,6 @@ function RunAfterHook
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function SetCompressionOptions
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function SetCompressionOptions
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{
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{
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if [ "$COMPRESSION_PROGRAM" == "xz" ] && type -p xz > /dev/null 2>&1
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then
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COMPRESSION_EXTENSION=.xz
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elif [ "$COMPRESSION_PROGRAM" == "lzma" ] && type -p lzma > /dev/null 2>&1
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then
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COMPRESSION_EXTENSION=.lzma
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elif [ "$COMPRESSION_PROGRAM" == "gzip" ] && type -p gzip > /dev/null 2>&1
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then
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COMPRESSION_EXTENSION=.gz
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COMPRESSION_OPTIONS=--rsyncable
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else
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COMPRESSION_EXTENSION=
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fi
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if [ "$SSH_COMPRESSION" == "yes" ]
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if [ "$SSH_COMPRESSION" == "yes" ]
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then
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then
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SSH_COMP=-C
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SSH_COMP=-C
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@ -314,72 +277,25 @@ function SetCompressionOptions
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function SetSudoOptions
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function SetSudoOptions
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{
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{
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## Add this to support prior config files without RSYNC_EXECUTABLE option
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if [ "$RSYNC_EXECUTABLE" == "" ]
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then
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RSYNC_EXECUTABLE=rsync
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fi
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if [ "$SUDO_EXEC" == "yes" ]
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if [ "$SUDO_EXEC" == "yes" ]
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then
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then
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RSYNC_PATH="sudo $(which rsync)"
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RSYNC_PATH="sudo $(which $RSYNC_EXECUTABLE)"
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COMMAND_SUDO="sudo"
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COMMAND_SUDO="sudo"
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else
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else
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RSYNC_PATH="$(which rsync)"
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RSYNC_PATH="$(which $RSYNC_EXECUTABLE)"
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COMMAND_SUDO=""
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COMMAND_SUDO=""
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fi
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fi
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}
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}
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function CreateLocalStorageDirectories
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{
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if [ ! -d $LOCAL_FILE_STORAGE ] && [ "$BACKUP_FILES" != "no" ]
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then
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mkdir -p $LOCAL_FILE_STORAGE
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fi
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}
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function CheckLocalSpace
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{
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# Not elegant solution to make df silent on errors
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df -P $LOCAL_FILE_STORAGE > /dev/shm/osync_local_space_$SCRIPT_PID 2>&1
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if [ $? != 0 ]
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then
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LOCAL_SPACE=0
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else
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LOCAL_SPACE=$(cat /dev/shm/osync_local_space_$SCRIPT_PID | tail -1 | awk '{print $4}')
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fi
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if [ $LOCAL_SPACE -eq 0 ]
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then
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LogError "Local disk space reported to be 0 Ko. This may also happen if local storage path doesn't exist."
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elif [ $SYNC_SIZE_MINIMUM -gt $(($TOTAL_DATABASES_SIZE+$TOTAL_FILES_SIZE)) ]
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then
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LogError "Backup size is smaller then expected."
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elif [ $LOCAL_STORAGE_WARN_MIN_SPACE -gt $LOCAL_SPACE ]
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then
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LogError "Local disk space is lower than warning value ($LOCAL_SPACE free Ko)."
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elif [ $LOCAL_SPACE -lt $(($TOTAL_DATABASES_SIZE+$TOTAL_FILES_SIZE)) ]
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then
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LogError "Local disk space may be insufficient (depending on rsync delta and DB compression ratio)."
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fi
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Log "Local Space: $LOCAL_SPACE Ko - Databases size: $TOTAL_DATABASES_SIZE Ko - Files size: $TOTAL_FILES_SIZE Ko"
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}
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function CheckTotalExecutionTime
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{
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#### Check if max execution time of whole script as been reached
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if [ $SECONDS -gt $SOFT_MAX_EXEC_TIME_TOTAL ]
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then
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if [ $soft_alert_total -eq 0 ]
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then
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LogError "Max soft execution time of the whole sync exceeded while backing up $BACKUP_TASK."
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soft_alert_total=1
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fi
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if [ $SECONDS -gt $HARD_MAX_EXEC_TIME_TOTAL ]
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then
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LogError "Max hard execution time of the whole backup exceeded while backing up $BACKUP_TASK, stopping backup process."
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exit 1
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fi
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fi
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}
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function CheckConnectivityRemoteHost
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function CheckConnectivityRemoteHost
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{
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{
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if [ "$REMOTE_HOST_PING" != "no" ]
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if [ "$REMOTE_HOST_PING" != "no" ] && [ "$REMOTE_SYNC" != "no" ]
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then
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then
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ping $REMOTE_HOST -c 2 > /dev/null 2>&1
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ping $REMOTE_HOST -c 2 > /dev/null 2>&1
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if [ $? != 0 ]
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if [ $? != 0 ]
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@ -412,3 +328,227 @@ function CheckConnectivity3rdPartyHosts
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fi
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fi
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fi
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fi
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}
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}
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function CreateDirs
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{
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if ! [ -d $MASTER_SYNC_DIR/$OSYNC_DIR ]
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then
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mkdir $MASTER_SYNC_DIR/$OSYNC_DIR
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fi
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if ! [ -d $STATE_DIR ]
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then
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mkdir $STATE_DIR
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fi
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}
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function CheckMasterSlaveDirs
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{
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if ! [ -d $MASTER_SYNC_DIR ]
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then
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LogError "Master directory [$MASTER_SYNC_DIR] does not exist."
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return 1
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fi
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if ! [ -d $SLAVE_SYNC_DIR ]
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then
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LogError "Slave directory [$SLAVE_SYNC_DIR] does not exist."
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return 1
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fi
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}
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function LockMaster
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{
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echo o
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}
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function LockSlave
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{
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echo o
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}
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function Sync
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{
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## decide if local or remote prevalence
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## Lock master dir
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## Lock slave dir
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Log "Starting synchronization task."
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## Create local file list
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Log "Creating current master file list"
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $MASTER_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/master-tree-current
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Log "Creating current slave file list"
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## Create distant file list
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $SLAVE_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/slave-tree-current
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## diff local file list and before file list except if before file list is empty >> deleted
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Log "Creating master deleted file list"
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if [ -f $STATE_DIR/master-tree-before ]
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then
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comm --nocheck-order -23 $STATE_DIR/master-tree-before $STATE_DIR/master-tree-current > $STATE_DIR/master-deleted-list
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else
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touch $STATE_DIR/master-deleted-list
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fi
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## diff local file list and before file list except if before file list is empty >> deleted
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Log "Creating slave deleted file list"
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if [ -f $STATE_DIR/slave-tree-before ]
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then
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comm --nocheck-order -23 $STATE_DIR/slave-tree-before $STATE_DIR/slave-tree-current > $STATE_DIR/slave-deleted-list
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else
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touch $STATE_DIR/slave-deleted-list
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fi
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## update local -> remote except deleted
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Log "Updating slave replica"
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rsync -rlptgodEui --backup --backup-dir "$MASTER_BACKUP_DIR" --exclude "$OSYNC_DIR" --exclude-from "$STATE_DIR/master-deleted-list" --exclude-from "$STATE_DIR/slave-deleted-list" $MASTER_SYNC_DIR/ $SLAVE_SYNC_DIR/
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## update remote -> local except deleted
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Log "Updating master replica"
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rsync -rlptgodEui --backup --backup-dir "$SLAVE_BACKUP_DIR" --exclude "$OSYNC_DIR" --exclude-from "$STATE_DIR/slave-deleted-list" --exclude-from "$STATE_DIR/master-deleted-list" $SLAVE_SYNC_DIR/ $MASTER_SYNC_DIR/
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Log "Propagating deletitions to slave"
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rsync -rlptgodEui --backup --backup-dir "$MASTER_DELETE_DIR" --delete --exclude "$OSYNC_DIR" --include-from "$STATE_DIR/master-deleted-list" --exclude='*' $MASTER_SYNC_DIR/ $SLAVE_SYNC_DIR/
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Log "Propagating deletitions to master"
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rsync -rlptgodEui --backup --backup-dir "$SLAVE_DELETE_DIR" --delete --exclude "$OSYNC_DIR" --include-from "$STATE_DIR/slave-deleted-list" --exclude='*' $SLAVE_SYNC_DIR/ $MASTER_SYNC_DIR/
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||||||
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## Create local file list
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Log "Creating new master file list"
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $MASTER_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/master-tree-before
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Log "Creating new slave file list"
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## Create distant file list
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $SLAVE_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/slave-tree-before
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||||||
|
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||||||
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Log "Finished synchronization task."
|
||||||
|
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||||||
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}
|
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|
||||||
|
function SoftDelete
|
||||||
|
{
|
||||||
|
echo softd
|
||||||
|
}
|
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|
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||||||
|
function Init
|
||||||
|
{
|
||||||
|
# Set error exit code if a piped command fails
|
||||||
|
set -o pipefail
|
||||||
|
set -o errtrace
|
||||||
|
|
||||||
|
trap TrapStop SIGINT SIGQUIT
|
||||||
|
if [ "$DEBUG" == "yes" ]
|
||||||
|
then
|
||||||
|
trap 'TrapError ${LINENO} $?' ERR
|
||||||
|
fi
|
||||||
|
|
||||||
|
LOG_FILE=/var/log/osync_$osync_VERSION-$BACKUP_ID.log
|
||||||
|
MAIL_ALERT_MSG="Warning: Execution of osync instance $OSYNC_ID (pid $SCRIPT_PID) as $LOCAL_USER@$LOCAL_HOST produced errors."
|
||||||
|
|
||||||
|
STATE_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/state"
|
||||||
|
|
||||||
|
## Working directories to keep backups of updated / deleted files
|
||||||
|
MASTER_BACKUP_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/backups"
|
||||||
|
MASTER_DELETE_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/deleted"
|
||||||
|
SLAVE_BACKUP_DIR="$SLAVE_SYNC_DIR/$OSYNC_DIR/backups"
|
||||||
|
SLAVE_DELETE_DIR="$SLAVE_SYNC_DIR/$OSYNC_DIR/deleted"
|
||||||
|
}
|
||||||
|
|
||||||
|
function DryRun
|
||||||
|
{
|
||||||
|
echo dry
|
||||||
|
}
|
||||||
|
|
||||||
|
function Main
|
||||||
|
{
|
||||||
|
CreateDirs
|
||||||
|
Sync
|
||||||
|
}
|
||||||
|
|
||||||
|
function Usage
|
||||||
|
{
|
||||||
|
echo "Osync $OSYNC_VERSION $OSYNC_BUILD"
|
||||||
|
echo ""
|
||||||
|
echo "usage: osync /path/to/conf.file [--dry] [--silent]"
|
||||||
|
echo ""
|
||||||
|
echo "--dry: will run osync without actuallyv doing anything; just testing"
|
||||||
|
echo "--silent: will run osync without any output to stdout, usefull for cron jobs"
|
||||||
|
exit 128
|
||||||
|
}
|
||||||
|
|
||||||
|
# Comand line argument flags
|
||||||
|
dryrun=0
|
||||||
|
silent=0
|
||||||
|
# Alert flags
|
||||||
|
soft_alert_total=0
|
||||||
|
error_alert=0
|
||||||
|
|
||||||
|
if [ $# -eq 0 ]
|
||||||
|
then
|
||||||
|
Usage
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
for i in "$@"
|
||||||
|
do
|
||||||
|
case $i in
|
||||||
|
--dry)
|
||||||
|
dryrun=1
|
||||||
|
;;
|
||||||
|
--silent)
|
||||||
|
silent=1
|
||||||
|
;;
|
||||||
|
--help|-h)
|
||||||
|
Usage
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
|
||||||
|
CheckEnvironment
|
||||||
|
if [ $? == 0 ]
|
||||||
|
then
|
||||||
|
if [ "$1" != "" ]
|
||||||
|
then
|
||||||
|
LoadConfigFile $1
|
||||||
|
if [ $? == 0 ]
|
||||||
|
then
|
||||||
|
Init
|
||||||
|
DATE=$(date)
|
||||||
|
Log "---------------------------------------------------------"
|
||||||
|
Log "$DATE - Osync v$OSYNC_VERSION script begin."
|
||||||
|
Log "----------------------------------------------------------"
|
||||||
|
CheckMasterSlaveDirs
|
||||||
|
if [ $? == 0 ]
|
||||||
|
then
|
||||||
|
if [ $dryrun -eq 1 ]
|
||||||
|
then
|
||||||
|
DryRun
|
||||||
|
else
|
||||||
|
RunBeforeHook
|
||||||
|
Main
|
||||||
|
RunAfterHook
|
||||||
|
fi
|
||||||
|
CleanUp
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
LogError "Configuration file could not be loaded."
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
LogError "No configuration file provided."
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
LogError "Environment not suitable to run osync."
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ $error_alert -ne 0 ]
|
||||||
|
then
|
||||||
|
SendAlert
|
||||||
|
LogError "Osync finished with errros."
|
||||||
|
exit 1
|
||||||
|
else
|
||||||
|
Log "Osync script finished."
|
||||||
|
exit 0
|
||||||
|
fi
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,58 @@
|
||||||
|
#!/bin/bash
|
||||||
|
|
||||||
|
#### Osync multi-master file synchronizer
|
||||||
|
#### (L) 2013 by Orsiris "Ozy" de Jong (www.netpower.fr)
|
||||||
|
#### Config file rev 1507201301
|
||||||
|
|
||||||
|
## Sync job identification, any string you want
|
||||||
|
SYNC_ID="sync_test"
|
||||||
|
|
||||||
|
## Directories to synchronize
|
||||||
|
MASTER_SYNC_DIR="/home/git/osync/test/dir1"
|
||||||
|
SLAVE_SYNC_DIR="/home/git/osync/test/dir2"
|
||||||
|
|
||||||
|
## Generate an alert if master or slave have lass space than given value in KB.
|
||||||
|
MINIMUM_SPACE=1048576
|
||||||
|
|
||||||
|
## If enabled, synchronization will be processed with sudo command. See documentation
|
||||||
|
SUDO_EXEC=yes
|
||||||
|
## Paranoia option. Don't change this unless you read the documentation and still feel concerned about security issues.
|
||||||
|
RSYNC_EXECUTABLE=rsync
|
||||||
|
|
||||||
|
##Remote options (will sync slave through ssh tunnel, needs RSA key. See documentation for remote sync.
|
||||||
|
REMOTE_SYNC=no
|
||||||
|
SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
|
||||||
|
REMOTE_USER=syncmaster
|
||||||
|
REMOTE_HOST=yourhost.local
|
||||||
|
REMOTE_PORT=22
|
||||||
|
SSH_COMPRESSION=yes
|
||||||
|
REMOTE_HOST_PING=yes
|
||||||
|
REMOTE_3RD_PARTY_HOST="www.kernel.org"
|
||||||
|
|
||||||
|
PRESERVE_ACL=yes
|
||||||
|
PRESERVE_XATTR=yes
|
||||||
|
RSYNC_COMPRESS=yes
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
SOFT_MAX_EXEC_TIME=30000
|
||||||
|
HARD_MAX_EXEC_TIME=36000Ԯ
|
||||||
|
|
||||||
|
CONFLICT_WINNER=master
|
||||||
|
CONFLICT_KEEP_BACKUP=yes
|
||||||
|
CONFLICT_KEEP_BACKUP_DAYS=30
|
||||||
|
|
||||||
|
SOFT_DELETE=yes
|
||||||
|
SOFT_DELETE_DAYS=30
|
||||||
|
|
||||||
|
DESTINATION_MAILS="ozy@badministrateur.com"
|
||||||
|
|
||||||
|
|
||||||
|
LOCAL_RUN_BEFORE_CMD=""
|
||||||
|
LOCAL_RUN_AFTER_CMD=""
|
||||||
|
|
||||||
|
REMOTE_RUN_BEFORE_CMD=""
|
||||||
|
REMOTE_RUN_AFTER_CMD=""
|
||||||
|
|
||||||
|
MAX_EXEC_TIME_PER_CMD_BEFORE=0
|
||||||
|
MAX_EXEC_TIME_PER_CMD_AFTER=0
|
||||||
Loading…
Reference in New Issue