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https://github.com/deajan/osync
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Somehow messy code yet, but working.
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deajan
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osync.sh
123
osync.sh
@ -1,9 +1,19 @@
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#!/bin/bash
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#### Osyc
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## Rsync based two way sync engine. Master/slave setup.
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###### Osync - Rsync based two way sync engine.
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###### (L) 2013 by Orsiris "Ozy" de Jong (www.netpower.fr)
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## todo:
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# add dryrun
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# add logging
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# add resume on error
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# add master/slave prevalance
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# thread sync function
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# remote functionnality
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OSYNC_VERSION=0.4
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OSYNC_BUILD=1507201301
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OSYNC_BUILD=1607201302
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DEBUG=no
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SCRIPT_PID=$$
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@ -14,10 +24,9 @@ LOCAL_HOST=$(hostname)
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## Default log file until config file is loaded
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LOG_FILE=/var/log/osync.log
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## Working directory on master
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## Working directory. Will keep current file states, backups and soft deleted files.
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OSYNC_DIR=".osync_workdir"
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## Log a state message every $KEEP_LOGGING seconds. Should not be equal to soft or hard execution time so your log won't be unnecessary big.
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KEEP_LOGGING=1801
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@ -360,32 +369,44 @@ function CheckMasterSlaveDirs
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function LockMaster
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{
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echo o
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echo "Not implemented yet"
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}
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function LockSlave
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{
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echo o
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echo "Not implemented yet"
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}
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# Subfunction of Sync
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function sync_update_master
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{
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Log "Updating slave replica."
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rsync -rlptgodEui --backup --backup-dir "$MASTER_BACKUP_DIR" --exclude "$OSYNC_DIR" --exclude-from "$STATE_DIR/master-deleted-list" --exclude-from "$STATE_DIR/slave-deleted-list" $MASTER_SYNC_DIR/ $SLAVE_SYNC_DIR/
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}
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# Subfunction of Sync
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function sync_update_slave
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{
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Log "Updating master replica."
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rsync -rlptgodEui --backup --backup-dir "$SLAVE_BACKUP_DIR" --exclude "$OSYNC_DIR" --exclude-from "$STATE_DIR/slave-deleted-list" --exclude-from "$STATE_DIR/master-deleted-list" $SLAVE_SYNC_DIR/ $MASTER_SYNC_DIR/
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}
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function Sync
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{
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## decide if local or remote prevalence
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## Lock master dir
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## Lock slave dir
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Log "Starting synchronization task."
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## Create local file list
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Log "Creating current master file list"
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Log "Creating master replica file list."
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $MASTER_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/master-tree-current
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Log "Creating current slave file list"
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Log "Creating slave replica file list."
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## Create distant file list
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rsync -rlptgodE --exclude "$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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Log "Creating master replica 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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@ -394,7 +415,7 @@ function Sync
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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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Log "Creating slave replica 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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@ -402,23 +423,24 @@ function Sync
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touch $STATE_DIR/slave-deleted-list
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fi
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if [ "$CONFLICT_PREVALANCE" != "master" ]
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then
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sync_update_slave
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sync_update_master
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else
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sync_update_master
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sync_update_slave
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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/ $MASTER_SYNC_DIR/
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Log "Propagating deletitions to slave"
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Log "Propagating deletitions to slave replica."
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rsync -rlptgodEui --backup --backup-dir "$MASTER_DELETE_DIR" --delete --exclude "$OSYNC_DIR" --include-from "$STATE_DIR/master-deleted-list" --exclude-from "$STATE_DIR/slave-deleted-list" $MASTER_SYNC_DIR/ $SLAVE_SYNC_DIR/
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Log "Propagating deletitions to master"
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Log "Propagating deletitions to master replica."
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rsync -rlptgodEui --backup --backup-dir "$SLAVE_DELETE_DIR" --delete --exclude "$OSYNC_DIR" --include-from "$STATE_DIR/slave-deleted-list" --exclude-from "$STATE_DIR/master-deleted-list" $SLAVE_SYNC_DIR/ $MASTER_SYNC_DIR/
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## Create local file list
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Log "Creating new master file list"
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Log "Creating new master replica file list."
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $MASTER_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/master-tree-before
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Log "Creating new slave file list"
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Log "Creating new slave replica file list."
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## Create distant file list
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rsync -rlptgodE --exclude "$OSYNC_DIR" --list-only $SLAVE_SYNC_DIR/ | grep "^-\|^d" | awk '{print $5}' | grep -v "^\.$" > $STATE_DIR/slave-tree-before
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@ -428,7 +450,35 @@ function Sync
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function SoftDelete
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{
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echo softd
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if [ "$CONFLICT_BACKUP" != "no" ]
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then
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if [ -d $MASTER_BACKUP_DIR ]
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then
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Log "Removing backups older than $CONFLICT_BACKUP_DAYS days on master replica."
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find $MASTER_BACKUP_DIR/ -ctime +$CONFLICT_BACKUP_DAYS | xargs rm -rf
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fi
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if [ -d $SLAVE_BACKUP_DIR ]
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then
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Log "Removing backups older than $CONFLICT_BACKUP_DAYS days on slave replica."
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find $SLAVE_BACKUP_DIR/ -ctime +$CONFLICT_BACKUP_DAYS | xargs rm -rf
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fi
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fi
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if [ "$SOFT_DELETE" != "no" ]
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then
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if [ -d $MASTER_DELETE_DIR ]
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then
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Log "Removing soft deleted items older than $SOFT_DELETE_DAYS days on master replica."
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find $MASTER_DELETE_DIR/ -ctime +$SOFT_DELETE_DAYS | xargs rm -rf
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fi
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if [ -d $SLAVE_DELETE_DIR ]
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then
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Log "Removing soft deleted items older than $SOFT_DELETE_DAYS days on slave replica."
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find $SLAVE_DELETE_DIR/ -ctime +$SOFT_DELETE_DAYS | xargs rm -rf
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fi
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fi
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}
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function Init
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@ -443,7 +493,7 @@ function Init
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trap 'TrapError ${LINENO} $?' ERR
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fi
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LOG_FILE=/var/log/osync_$osync_VERSION-$BACKUP_ID.log
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LOG_FILE=/var/log/osync_$OSYNC_VERSION-$SYNC_ID.log
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MAIL_ALERT_MSG="Warning: Execution of osync instance $OSYNC_ID (pid $SCRIPT_PID) as $LOCAL_USER@$LOCAL_HOST produced errors."
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STATE_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/state"
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@ -453,11 +503,14 @@ function Init
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MASTER_DELETE_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/deleted"
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SLAVE_BACKUP_DIR="$SLAVE_SYNC_DIR/$OSYNC_DIR/backups"
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SLAVE_DELETE_DIR="$SLAVE_SYNC_DIR/$OSYNC_DIR/deleted"
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}
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function DryRun
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{
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echo dry
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## Runner definition
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if [ "$REMOTE_SYNC" == "yes" ]
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then
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RUNNER="$(which ssh) $SSH_COMP -i $SSH_RSA_PRIVATE_KEY $REMOTE_USER@$REMOTE_HOST -p $REMOTE_PORT"
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else
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RUNNER=""
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fi
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}
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function Main
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then
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Init
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DATE=$(date)
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Log "---------------------------------------------------------"
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Log "-----------------------------------------------------------"
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Log "$DATE - Osync v$OSYNC_VERSION script begin."
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Log "----------------------------------------------------------"
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Log "-----------------------------------------------------------"
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CheckMasterSlaveDirs
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if [ $? == 0 ]
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then
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if [ $dryrun -eq 1 ]
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then
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DryRun
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else
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RunBeforeHook
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Main
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SoftDelete
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RunAfterHook
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fi
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CleanUp
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fi
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else
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10
sync.conf
10
sync.conf
@ -1,7 +1,7 @@
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#!/bin/bash
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#### Osync multi-master file synchronizer
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#### (L) 2013 by Orsiris "Ozy" de Jong (www.netpower.fr)
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###### Osync file synchronizer tool based on rsync
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###### (L) 2013 by Orsiris "Ozy" de Jong (www.netpower.fr)
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#### Config file rev 1507201301
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## Sync job identification, any string you want
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@ -38,9 +38,9 @@ RSYNC_COMPRESS=yes
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SOFT_MAX_EXEC_TIME=30000
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HARD_MAX_EXEC_TIME=36000Ԯ
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CONFLICT_WINNER=master
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CONFLICT_KEEP_BACKUP=yes
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CONFLICT_KEEP_BACKUP_DAYS=30
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CONFLICT_PREVALANCE=master
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CONFLICT_BACKUP=yes
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CONFLICT_BACKUP_DAYS=30
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SOFT_DELETE=yes
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SOFT_DELETE_DAYS=30
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