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2d5546e4cd
osync/osync.sh
deajan 2d5546e4cd Add quicksync functionnality
2013-11-03 20:29:17 +01:00

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#!/bin/bash
###### Osync - Rsync based two way sync engine with fault tolerance
###### (L) 2013 by Orsiris "Ozy" de Jong (www.netpower.fr)
OSYNC_VERSION=0.99RC2
OSYNC_BUILD=0211201302
DEBUG=no
SCRIPT_PID=$$
LOCAL_USER=$(whoami)
LOCAL_HOST=$(hostname)
## Default log file until config file is loaded
if [ -w /var/log ]
then
LOG_FILE=/var/log/osync.log
else
LOG_FILE=./osync.log
fi
## Default directory where to store run files
if [ -w /dev/shm ]
then
RUN_DIR=/dev/shm
elif [ -w /tmp ]
then
RUN_DIR=/tmp
elif [ -w /var/tmp ]
then
RUN_DIR=/var/tmp
else
RUN_DIR=.
fi
## Working directory. Will keep current file states, backups and soft deleted files.
OSYNC_DIR=".osync_workdir"
## Log a state message every $KEEP_LOGGING seconds. Should not be equal to soft or hard execution time so your log won't be unnecessary big.
KEEP_LOGGING=1801
## Correct output of sort command (language agnostic sorting)
export LC_ALL=C
function Log
{
echo -e "TIME: $SECONDS - $1" >> "$LOG_FILE"
if [ $silent -eq 0 ]
then
echo -e "TIME: $SECONDS - $1"
fi
}
function LogError
{
Log "$1"
error_alert=1
}
function LogDebug
{
if [ "$DEBUG" == "yes" ]
then
Log "$1"
fi
}
function TrapError {
local JOB="$0"
local LINE="$1"
local CODE="${2:-1}"
if [ $silent -eq 0 ]
then
echo -e " /!\ ERROR in ${JOB}: Near line ${LINE}, exit code ${CODE}"
fi
}
function TrapStop
{
if [ $soft_stop -eq 0 ]
then
LogError " /!\ WARNING: Manual exit of osync is really not recommended. Sync will be in inconsistent state."
LogError " /!\ WARNING: If you are sure, please hit CTRL+C another time to quit."
soft_stop=1
return 1
fi
if [ $soft_stop -eq 1 ]
then
LogError " /!\ WARNING: CTRL+C hit twice. Quitting osync. Please wait..."
soft_stop=2
exit 1
fi
}
function TrapQuit
{
## Stopping all running child processes
if type -p pkill > /dev/null 2>&1
then
pkill -TERM -P $$
elif [ "$LOCAL_OS" == "msys" ] || [ "$OSTYPE" == "msys" ]
then
## This is not really a clean way to get child process pids, especially the tail -n +2 which resolves a strange char apparition in msys bash
for pid in $(ps -a | awk '{$1=$1}$1' | awk '{print $1" "$2}' | grep " $$$" | awk '{print $1}' | tail -n +2)
do
kill -9 $pid > /dev/null 2>&1
done
else
for pid in $(ps -a --Group $$)
do
kill -9 $pid
done
fi
if [ $error_alert -ne 0 ]
then
SendAlert
UnlockDirectories
CleanUp
LogError "Osync finished with errros."
exit 1
else
UnlockDirectories
CleanUp
Log "Osync finished."
exit 0
fi
}
function Spinner
{
if [ $silent -eq 1 ]
then
return 1
fi
case $toggle
in
1)
echo -n $1" \ "
echo -ne "\r"
toggle="2"
;;
2)
echo -n $1" | "
echo -ne "\r"
toggle="3"
;;
3)
echo -n $1" / "
echo -ne "\r"
toggle="4"
;;
*)
echo -n $1" - "
echo -ne "\r"
toggle="1"
;;
esac
}
function EscapeSpaces
{
echo $(echo "$1" | sed 's/ /\\ /g')
}
function CleanUp
{
if [ "$DEBUG" != "yes" ]
then
rm -f $RUN_DIR/osync_config_$SCRIPT_PID
rm -f $RUN_DIR/osync_remote_os_$SCRIPT_PID
rm -f $RUN_DIR/osync_run_local_$SCRIPT_PID
rm -f $RUN_DIR/osync_run_remote_$SCRIPT_PID
rm -f $RUN_DIR/osync_master-tree-current_$SCRIPT_PID
rm -f $RUN_DIR/osync_slave-tree-current_$SCRIPT_PID
rm -f $RUN_DIR/osync_master-tree-after_$SCRIPT_PID
rm -f $RUN_DIR/osync_slave-tree-after_$SCRIPT_PID
rm -f $RUN_DIR/osync_update_master_replica_$SCRIPT_PID
rm -f $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID
rm -f $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID
rm -f $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID
rm -f $RUN_DIR/osync_remote_slave_lock_$SCRIPT_PID
rm -f $RUN_DIR/osync_slave_space_$SCRIPT_PID
fi
}
function SendAlert
{
if [ "$quick_sync" == "2" ]
then
Log "Current task is a quicksync task. Will not send any alert."
return 0
fi
cat "$LOG_FILE" | gzip -9 > /tmp/osync_lastlog.gz
if type -p mutt > /dev/null 2>&1
then
echo $MAIL_ALERT_MSG | $(type -p mutt) -x -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS -a /tmp/osync_lastlog.gz
if [ $? != 0 ]
then
Log "WARNING: Cannot send alert email via $(type -p mutt) !!!"
else
Log "Sent alert mail using mutt."
fi
elif type -p mail > /dev/null 2>&1
then
echo $MAIL_ALERT_MSG | $(type -p mail) -a /tmp/osync_lastlog.gz -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS
if [ $? != 0 ]
then
Log "WARNING: Cannot send alert email via $(type -p mail) with attachments !!!"
echo $MAIL_ALERT_MSG | $(type -p mail) -s "Sync alert for $SYNC_ID" $DESTINATION_MAILS
if [ $? != 0 ]
then
Log "WARNING: Cannot send alert email via $(type -p mail) without attachments !!!"
else
Log "Sent alert mail using mail command without attachment."
fi
else
Log "Sent alert mail using mail command."
fi
elif type -p sendemail > /dev/null 2>&1
then
$(type -p sendemail) -f $SENDER_MAIL -t $DESTINATION_MAILS -u "Backup alert for $BACKUP_ID" -m "$MAIL_ALERT_MSG" -s $SMTP_SERVER -o username $SMTP_USER -p password $SMTP_PASSWORD > /dev/null 2>&1
if [ $? != 0 ]
then
Log "WARNING: Cannot send alert email via $(type -p sendemail) !!!"
else
Log "Sent alert mail using sendemail command without attachment."
fi
else
Log "WARNING: Cannot send alert email (no mutt / mail present) !!!"
return 1
fi
}
function LoadConfigFile
{
if [ ! -f "$1" ]
then
LogError "Cannot load configuration file [$1]. Sync cannot start."
exit 1
elif [[ "$1" != *".conf" ]]
then
LogError "Wrong configuration file supplied [$1]. Sync cannot start."
exit 1
else
egrep '^#|^[^ ]*=[^;&]*' "$1" > "$RUN_DIR/osync_config_$SCRIPT_PID"
source "$RUN_DIR/osync_config_$SCRIPT_PID"
fi
}
function CheckEnvironment
{
if [ "$REMOTE_SYNC" == "yes" ]
then
if ! type -p ssh > /dev/null 2>&1
then
LogError "ssh not present. Cannot start sync."
return 1
fi
fi
if ! type -p rsync > /dev/null 2>&1
then
LogError "rsync not present. Sync cannot start."
return 1
fi
}
function GetOperatingSystem
{
LOCAL_OS_VAR=$(uname -spio)
if [ "$REMOTE_SYNC" == "yes" ]
then
eval "$SSH_CMD \"uname -spio\" > $RUN_DIR/osync_remote_os_$SCRIPT_PID 2>&1"
child_pid=$!
WaitForTaskCompletion $child_pid 120 240
retval=$?
if [ $retval != 0 ]
then
LogError "Cannot Get remote OS type."
else
REMOTE_OS_VAR=$(cat $RUN_DIR/osync_remote_os_$SCRIPT_PID)
fi
fi
case $LOCAL_OS_VAR in
"Linux"*)
LOCAL_OS="Linux"
;;
"FreeBSD"*)
LOCAL_OS="FreeBSD"
;;
"MINGW32"*)
LOCAL_OS="msys"
;;
*)
LogError "Running on >> $LOCAL_OS_VAR << not supported. Please report to the author."
exit 1
;;
esac
case $REMOTE_OS_VAR in
"Linux"*)
REMOTE_OS="Linux"
;;
"FreeBSD"*)
REMOTE_OS="FreeBSD"
;;
"MINGW32"*)
REMOTE_OS="msys"
;;
"")
;;
*)
LogError "Running on remote >> $REMOTE_OS_VAR << not supported. Please report to the author."
exit 1
esac
if [ "$DEBUG" == "yes" ]
then
Log "Local OS: [$LOCAL_OS_VAR]."
if [ "$REMOTE_BACKUP" == "yes" ]
then
Log "Remote OS: [$REMOTE_OS_VAR]."
fi
fi
}
# Waits for pid $1 to complete. Will log an alert if $2 seconds passed since current task execution unless $2 equals 0.
# Will stop task and log alert if $3 seconds passed since current task execution unless $3 equals 0.
function WaitForTaskCompletion
{
soft_alert=0
SECONDS_BEGIN=$SECONDS
if [ "$LOCAL_OS" == "msys" ]
then
PROCESS_TEST="ps -a | awk '{\$1=\$1}\$1' | awk '{print \$1}' | grep $1"
else
PROCESS_TEST="ps -p$1"
fi
while eval $PROCESS_TEST > /dev/null
do
Spinner
sleep 1
EXEC_TIME=$(($SECONDS - $SECONDS_BEGIN))
if [ $(($EXEC_TIME % $KEEP_LOGGING)) -eq 0 ]
then
Log "Current task still running."
fi
if [ $EXEC_TIME -gt $2 ]
then
if [ $soft_alert -eq 0 ] && [ $2 != 0 ]
then
LogError "Max soft execution time exceeded for task."
soft_alert=1
fi
if [ $EXEC_TIME -gt $3 ] && [ $3 != 0 ]
then
LogError "Max hard execution time exceeded for task. Stopping task execution."
kill -s SIGTERM $1
if [ $? == 0 ]
then
LogError "Task stopped succesfully"
else
LogError "Sending SIGTERM to proces failed. Trying the hard way."
kill -9 $1
if [ $? != 0 ]
then
LogError "Could not stop task."
fi
fi
return 1
fi
fi
done
wait $child_pid
return $?
}
# Waits for pid $1 to complete. Will log an alert if $2 seconds passed since script start unless $2 equals 0.
# Will stop task and log alert if $3 seconds passed since script start unless $3 equals 0.
function WaitForCompletion
{
soft_alert=0
if [ "$LOCAL_OS" == "msys" ]
then
PROCESS_TEST="ps -a | awk '{\$1=\$1}\$1' | awk '{print \$1}' | grep $1"
else
PROCESS_TEST="ps -p$1"
fi
while eval $PROCESS_TEST > /dev/null
do
Spinner
sleep 1
if [ $(($SECONDS % $KEEP_LOGGING)) -eq 0 ]
then
Log "Current task still running."
fi
if [ $SECONDS -gt $2 ]
then
if [ $soft_alert -eq 0 ] && [ $2 != 0 ]
then
LogError "Max soft execution time exceeded for script."
soft_alert=1
fi
if [ $SECONDS -gt $3 ] && [ $3 != 0 ]
then
LogError "Max hard execution time exceeded for script. Stopping current task execution."
kill -s SIGTERM $1
if [ $? == 0 ]
then
LogError "Task stopped succesfully"
else
LogError "Sending SIGTERM to proces failed. Trying the hard way."
kill -9 $1
if [ $? != 0 ]
then
LogError "Could not stop task."
fi
fi
return 1
fi
fi
done
wait $child_pid
return $?
}
## Runs local command $1 and waits for completition in $2 seconds
function RunLocalCommand
{
if [ $dryrun -ne 0 ]
then
Log "Dryrun: Local command [$1] not run."
return 1
fi
Log "Running command [$1] on local host."
eval "$1" > $RUN_DIR/osync_run_local_$SCRIPT_PID 2>&1 &
child_pid=$!
WaitForTaskCompletion $child_pid 0 $2
retval=$?
if [ $retval -eq 0 ]
then
Log "Command succeded."
else
LogError "Command failed."
fi
if [ $verbose -eq 1 ]
then
Log "Command output:\n$(cat $RUN_DIR/osync_run_local_$SCRIPT_PID)"
fi
if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]
then
exit 1
fi
}
## Runs remote command $1 and waits for completition in $2 seconds
function RunRemoteCommand
{
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ $dryrun -ne 0 ]
then
Log "Dryrun: Local command [$1] not run."
return 1
fi
Log "Running command [$1] on remote host."
eval "$SSH_CMD \"$1\" > $RUN_DIR/osync_run_remote_$SCRIPT_PID 2>&1 &"
child_pid=$!
WaitForTaskCompletion $child_pid 0 $2
retval=$?
if [ $retval -eq 0 ]
then
Log "Command succeded."
else
LogError "Command failed."
fi
if [ -f $RUN_DIR/osync_run_remote_$SCRIPT_PID ] && [ $verbose -eq 1 ]
then
Log "Command output:\n$(cat $RUN_DIR/osync_run_remote_$SCRIPT_PID)"
fi
if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]
then
exit 1
fi
}
function RunBeforeHook
{
if [ "$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" $MAX_EXEC_TIME_PER_CMD_BEFORE
fi
}
function RunAfterHook
{
if [ "$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" $MAX_EXEC_TIME_PER_CMD_AFTER
fi
}
function CheckConnectivityRemoteHost
{
if [ "$REMOTE_HOST_PING" != "no" ] && [ "$REMOTE_SYNC" != "no" ]
then
if [ "$LOCAL_OS" == "msys" ]
then
ping -n 2 $REMOTE_HOST > /dev/null 2>&1
else
ping -c 2 $REMOTE_HOST > /dev/null 2>&1
fi
if [ $? != 0 ]
then
LogError "Cannot ping $REMOTE_HOST"
exit 1
fi
fi
}
function CheckConnectivity3rdPartyHosts
{
if [ "$REMOTE_3RD_PARTY_HOSTS" != "" ]
then
remote_3rd_party_success=0
OLD_IFS=$IFS
IFS=$' \t\n'
for i in $REMOTE_3RD_PARTY_HOSTS
do
if [ "$LOCAL_OS" == "msys" ]
then
ping -n 2 $i > /dev/null 2>&1
else
ping -c 2 $i > /dev/null 2>&1
fi
if [ $? != 0 ]
then
Log "Cannot ping 3rd party host $i"
else
remote_3rd_party_success=1
fi
done
IFS=$OLD_IFS
if [ $remote_3rd_party_success -ne 1 ]
then
LogError "No remote 3rd party host responded to ping. No internet ?"
exit 1
fi
fi
}
function CreateOsyncDirs
{
if ! [ -d "$MASTER_STATE_DIR" ]
then
mkdir -p "$MASTER_STATE_DIR"
if [ $? != 0 ]
then
LogError "Cannot create master replica state dir [$MASTER_STATE_DIR]."
exit 1
fi
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
eval "$SSH_CMD \"if ! [ -d \\\"$SLAVE_STATE_DIR\\\" ]; then $COMMAND_SUDO mkdir -p \\\"$SLAVE_STATE_DIR\\\"; fi\"" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
else
if ! [ -d "$SLAVE_STATE_DIR" ]; then mkdir -p "$SLAVE_STATE_DIR"; fi
fi
if [ $? != 0 ]
then
LogError "Cannot create slave replica state dir [$SLAVE_STATE_DIR]."
exit 1
fi
}
function CheckMasterSlaveDirs
{
if ! [ -d "$MASTER_SYNC_DIR" ]
then
if [ "$CREATE_DIRS" == "yes" ]
then
mkdir -p "$MASTER_SYNC_DIR"
if [ $? != 0 ]
then
LogError "Cannot create master directory [$MASTER_SYNC_DIR]."
exit 1
fi
else
LogError "Master directory [$MASTER_SYNC_DIR] does not exist."
exit 1
fi
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ "$CREATE_DIRS" == "yes" ]
then
eval "$SSH_CMD \"if ! [ -d \\\"$SLAVE_SYNC_DIR\\\" ]; then $COMMAND_SUDO mkdir -p \\\"$SLAVE_SYNC_DIR\\\"; fi"\" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
if [ $? != 0 ]
then
LogError "Cannot create slave directory [$SLAVE_SYNC_DIR]."
exit 1
fi
else
eval "$SSH_CMD \"if ! [ -d \\\"$SLAVE_SYNC_DIR\\\" ]; then exit 1; fi"\" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
res=$?
if [ $res != 0 ]
then
LogError "Slave directory [$SLAVE_SYNC_DIR] does not exist."
exit 1
fi
fi
else
if [ ! -d "$SLAVE_SYNC_DIR" ]
then
if [ "$CREATE_DIRS" == "yes" ]
then
mkdir -p "$SLAVE_SYNC_DIR"
if [ $? != 0 ]
then
LogError "Cannot create slave directory [$SLAVE_SYNC_DIR]."
exit 1
else
Log "Created slave directory [$SLAVE_SYNC_DIR]."
fi
else
LogError "Slave directory [$SLAVE_SYNC_DIR] does not exist."
exit 1
fi
fi
fi
}
function CheckMinimumSpace
{
Log "Checking minimum disk space on master and slave."
MASTER_SPACE=$(df -P "$MASTER_SYNC_DIR" | tail -1 | awk '{print $4}')
if [ $MASTER_SPACE -lt $MINIMUM_SPACE ]
then
LogError "There is not enough free space on master [$MASTER_SPACE KB]."
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
eval "$SSH_CMD \"$COMMAND_SUDO df -P \\\"$SLAVE_SYNC_DIR\\\"\"" > $RUN_DIR/osync_slave_space_$SCRIPT_PID &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
SLAVE_SPACE=$(cat $RUN_DIR/osync_slave_space_$SCRIPT_PID | tail -1 | awk '{print $4}')
else
SLAVE_SPACE=$(df -P "$SLAVE_SYNC_DIR" | tail -1 | awk '{print $4}')
fi
if [ $SLAVE_SPACE -lt $MINIMUM_SPACE ]
then
LogError "There is not enough free space on slave [$SLAVE_SPACE KB]."
fi
}
function RsyncExcludePattern
{
OLD_IFS=$IFS
IFS=$PATH_SEPARATOR_CHAR
for excludedir in $RSYNC_EXCLUDE_PATTERN
do
if [ "$RSYNC_EXCLUDE" == "" ]
then
RSYNC_EXCLUDE="--exclude=\"$excludedir\""
else
RSYNC_EXCLUDE="$RSYNC_EXCLUDE --exclude=\"$excludedir\""
fi
done
IFS=$OLD_IFS
}
function WriteLockFiles
{
echo $SCRIPT_PID > "$MASTER_STATE_DIR/lock"
if [ $? != 0 ]
then
LogError "Could not set lock on master replica."
exit 1
else
Log "Locked master replica."
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
eval "$SSH_CMD \"$COMMAND_SUDO echo $SCRIPT_PID@$SYNC_ID > \\\"$SLAVE_STATE_DIR/lock\\\"\"" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
if [ $? != 0 ]
then
LogError "Could not set lock on remote slave replica."
exit 1
else
Log "Locked remote slave replica."
fi
else
echo "$SCRIPT_PID@$SYNC_ID" > "$SLAVE_STATE_DIR/lock"
if [ $? != 0 ]
then
LogError "Couuld not set lock on local slave replica."
exit 1
else
Log "Locked local slave replica."
fi
fi
}
function LockDirectories
{
if [ $force_unlock -eq 1 ]
then
WriteLockFiles
if [ $? != 0 ]
then
exit 1
fi
fi
Log "Checking for replica locks."
if [ -f "$MASTER_STATE_DIR/lock" ]
then
master_lock_pid=$(cat $MASTER_STATE_DIR/lock)
LogDebug "Master lock pid present: $master_lock_pid"
ps -p$master_lock_pid > /dev/null 2>&1
if [ $? != 0 ]
then
Log "There is a dead osync lock on master. Instance $master_lock_pid no longer running. Resuming."
else
LogError "There is already a local instance of osync that locks master replica. Cannot start. If your are sure this is an error, plaese kill instance $master_lock_pid of osync."
exit 1
fi
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
eval "$SSH_CMD \"if [ -f \\\"$SLAVE_STATE_DIR/lock\\\" ]; then cat \\\"$SLAVE_STATE_DIR/lock\\\"; fi\" > $RUN_DIR/osync_remote_slave_lock_$SCRIPT_PID" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
if [ -f $RUN_DIR/osync_remote_slave_lock_$SCRIPT_PID ]
then
slave_lock_pid=$(cat $RUN_DIR/osync_remote_slave_lock_$SCRIPT_PID | cut -d'@' -f1)
slave_lock_id=$(cat $RUN_DIR/osync_remote_slave_lock_$SCRIPT_PID | cut -d'@' -f2)
fi
else
if [ -f "$SLAVE_STATE_DIR/lock" ]
then
slave_lock_pid=$(cat "$SLAVE_STATE_DIR/lock" | cut -d'@' -f1)
slave_lock_id=$(cat "$SLAVE_STATE_DIR/lock" | cut -d'@' -f2)
fi
fi
if [ "$slave_lock_pid" != "" ] && [ "$slave_lock_id" != "" ]
then
LogDebug "Slave lock pid: $slave_lock_pid"
LogDebug "Slave lock id: $slave_lock_pid"
ps -p$slave_lock_pid > /dev/null
if [ $? != 0 ]
then
if [ "$slave_lock_id" == "$SYNC_ID" ]
then
Log "There is a dead osync lock on slave replica that corresponds to this master sync-id. Instance $slave_lock_pid no longer running. Resuming."
else
if [ "$FORCE_STRANGER_LOCK_RESUME" == "yes" ]
then
LogError "WARNING: There is a dead osync lock on slave replica that does not correspond to this master sync-id. Forcing resume."
else
LogError "There is a dead osync lock on slave replica that does not correspond to this master sync-id. Will not resume."
exit 1
fi
fi
else
LogError "There is already a local instance of osync that locks slave replica. Cannot start. If you are sure this is an error, please kill instance $slave_lock_pid of osync."
exit 1
fi
fi
WriteLockFiles
}
function UnlockDirectories
{
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
eval "$SSH_CMD \"if [ -f \\\"$SLAVE_STATE_DIR/lock\\\" ]; then $COMMAND_SUDO rm \\\"$SLAVE_STATE_DIR/lock\\\"; fi\"" &
child_pid=$!
WaitForTaskCompletion $child_pid 0 1800
else
if [ -f "$SLAVE_STATE_DIR/lock" ];then rm "$SLAVE_STATE_DIR/lock"; fi
fi
if [ $? != 0 ]
then
LogError "Could not unlock slave replica."
else
Log "Removed slave replica lock."
fi
if [ -f "$MASTER_STATE_DIR/lock" ]
then
rm "$MASTER_STATE_DIR/lock"
if [ $? != 0 ]
then
LogError "Could not unlock master replica."
else
Log "Removed master replica lock."
fi
fi
}
###### Sync core functions
function master_tree_current
{
Log "Creating master replica file list."
## Tree listing function: list | remove everything not file or directory | remove first 4 columns | remove empty leading spaces | remove "." dir (or return true if not exist)
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --list-only \"$MASTER_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_master-tree-current_$SCRIPT_PID &"
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval $rsync_cmd
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME
if [ $? == 0 ] && [ -f $RUN_DIR/osync_master-tree-current_$SCRIPT_PID ]
then
mv $RUN_DIR/osync_master-tree-current_$SCRIPT_PID "$MASTER_STATE_DIR/master-tree-current"
echo "master-replica-tree.success" > "$MASTER_STATE_DIR/last-action"
else
LogError "Cannot create master file list."
echo "master-replica-tree.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
fi
}
function slave_tree_current
{
Log "Creating slave replica file list."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE -e \"$RSYNC_SSH_CMD\" --list-only $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_slave-tree-current_$SCRIPT_PID &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS --exclude \"$OSYNC_DIR\" $RSNYC_EXCLUDE --list-only \"$SLAVE_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_slave-tree-current_$SCRIPT_PID &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval $rsync_cmd
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME
retval=$?
if [ $retval == 0 ] && [ -f $RUN_DIR/osync_slave-tree-current_$SCRIPT_PID ]
then
mv $RUN_DIR/osync_slave-tree-current_$SCRIPT_PID "$MASTER_STATE_DIR/slave-tree-current"
echo "slave-replica-tree.-success" > "$MASTER_STATE_DIR/last-action"
else
LogError "Cannot create slave file list."
echo "slave-replica-tree.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
fi
}
function master_delete_list
{
Log "Creating master replica deleted file list."
if [ -f "$MASTER_STATE_DIR/master-tree-after" ]
then
comm -23 "$MASTER_STATE_DIR/master-tree-after" "$MASTER_STATE_DIR/master-tree-current" > "$MASTER_STATE_DIR/master-deleted-list"
echo "master-replica-deleted-list.success" > "$MASTER_STATE_DIR/last-action"
else
touch "$MASTER_STATE_DIR/master-deleted-list"
echo "master-replica-deleted-list.empty" > "$MASTER_STATE_DIR/last-action"
fi
}
function slave_delete_list
{
Log "Creating slave replica deleted file list."
if [ -f "$MASTER_STATE_DIR/slave-tree-after" ]
then
comm -23 "$MASTER_STATE_DIR/slave-tree-after" "$MASTER_STATE_DIR/slave-tree-current" > "$MASTER_STATE_DIR/slave-deleted-list"
echo "slave-replica-deleted-list.success" > "$MASTER_STATE_DIR/last-action"
else
touch "$MASTER_STATE_DIR/slave-deleted-list"
echo "slave-replica-deleted-list.empty" > "$MASTER_STATE_DIR/last-action"
fi
}
function sync_update_slave
{
Log "Updating slave replica."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats -e \"$RSYNC_SSH_CMD\" $SLAVE_BACKUP --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from \"$MASTER_STATE_DIR/master-deleted-list\" --exclude-from \"$MASTER_STATE_DIR/slave-deleted-list\" \"$MASTER_SYNC_DIR/\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" > $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats $SLAVE_BACKUP --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from \"$MASTER_STATE_DIR/master-deleted-list\" --exclude-from \"$MASTER_STATE_DIR/slave-deleted-list\" \"$MASTER_SYNC_DIR/\" \"$SLAVE_SYNC_DIR/\" > $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID 2>&1 &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval "$rsync_cmd"
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME
retval=$?
if [ $verbose -eq 1 ] && [ -f $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID ]
then
Log "List:\n$(cat $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID)"
fi
if [ $retval != 0 ]
then
LogError "Updating slave replica failed. Stopping execution."
if [ $verbose -eq 0 ] && [ -f $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID ]
then
LogError "Rsync output:\n$(cat $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID)"
fi
echo "update-slave-replica.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
else
Log "Updating slave replica succeded."
echo "update-slave-replica.success" > "$MASTER_STATE_DIR/last-action"
fi
}
function sync_update_master
{
Log "Updating master replica."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) $RSYNC_ARGS -rlptgoDEui --stats -e \"$RSYNC_SSH_CMD\" $MASTER_BACKUP --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from \"$MASTER_STATE_DIR/slave-deleted-list\" --exclude-from \"$MASTER_STATE_DIR/master-deleted-list\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" \"$MASTER_SYNC_DIR\" > $RUN_DIR/osync_update_master_replica_$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats $MASTER_BACKUP --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from \"$MASTER_STATE_DIR/slave-deleted-list\" --exclude-from \"$MASTER_STATE_DIR/master-deleted-list\" \"$SLAVE_SYNC_DIR/\" \"$MASTER_SYNC_DIR/\" > $RUN_DIR/osync_update_master_replica_$SCRIPT_PID 2>&1 &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval "$rsync_cmd"
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME
retval=$?
if [ $verbose -eq 1 ] && [ -f $RUN_DIR/osync_update_master_replica_$SCRIPT_PID ]
then
Log "List:\n$(cat $RUN_DIR/osync_update_master_replica_$SCRIPT_PID)"
fi
if [ $retval != 0 ]
then
if [ $verbose -eq 0 ] && [ -f $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID ]
then
LogError "Rsync output:\n$(cat $RUN_DIR/osync_update_slave_replica_$SCRIPT_PID)"
fi
LogError "Updating master replica failed. Stopping execution."
echo "update-master-replica.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
else
Log "Updating master replica succeded."
echo "update-master-replica.success" > "$MASTER_STATE_DIR/last-action"
fi
}
function delete_on_slave
{
Log "Propagating deletions to slave replica."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats -e \"$RSYNC_SSH_CMD\" $SLAVE_DELETE --delete --exclude \"$OSYNC_DIR\" --include-from \"$MASTER_STATE_DIR/master-deleted-list\" --exclude=\"*\" \"$MASTER_SYNC_DIR/\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" > $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID 2>&1 &"
else
#rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats $SLAVE_DELETE --delete --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --exclude-from \"$MASTER_STATE_DIR/slave-deleted-list\" --include-from \"$MASTER_STATE_DIR/master-deleted-list\" \"$MASTER_SYNC_DIR/\" \"$SLAVE_SYNC_DIR/\" > $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID 2>&1 &"
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats $SLAVE_DELETE --delete --exclude \"$OSYNC_DIR\" --include-from \"$MASTER_STATE_DIR/master-deleted-list\" --exclude=\"*\" \"$MASTER_SYNC_DIR/\" \"$SLAVE_SYNC_DIR/\" > $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID 2>&1 &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval "$rsync_cmd"
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $verbose -eq 1 ] && [ -f $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID ]
then
Log "List:\n$(cat $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID)"
fi
if [ $retval != 0 ]
then
if [ $verbose -eq 0 ] && [ -f $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID ]
then
LogError "Rsync output:\n$(cat $RUN_DIR/osync_deletion_on_slave_$SCRIPT_PID)"
fi
LogError "Deletion on slave failed."
echo "delete-propagation-slave.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
else
echo "delete-propagation-slave.success" > "$MASTER_STATE_DIR/last-action"
fi
}
function delete_on_master
{
Log "Propagating deletions to master replica."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats -e \"$RSYNC_SSH_CMD\" $MASTER_DELETE --delete --exclude \"$OSYNC_DIR\" --include-from \"$MASTER_STATE_DIR/slave-deleted-list\" --exclude=\"*\" $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" \"$MASTER_SYNC_DIR/\" > $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -rlptgoDEui --stats $MASTER_DELETE --delete --exclude \"$OSYNC_DIR\" --include-from \"$MASTER_STATE_DIR/slave-deleted-list\" --exclude=\"*\" \"$SLAVE_SYNC_DIR/\" \"$MASTER_SYNC_DIR/\" > $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID 2>&1 &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval "$rsync_cmd"
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $verbose -eq 1 ] && [ -f $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID ]
then
Log "List:\n$(cat $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID)"
fi
if [ $retval != 0 ]
then
if [ $verbose -eq 0 ] && [ -f $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID ]
then
LogError "Rsync output:\n$(cat $RUN_DIR/osync_deletion_on_master_$SCRIPT_PID)"
fi
LogError "Deletion on master failed."
echo "delete-propagation-master.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
else
echo "delete-propagation-master.success" > "$MASTER_STATE_DIR/last-action"
fi
}
function master_tree_after
{
if [ $dryrun -eq 1 ]
then
Log "No need to create after run master replica file list, nothing should have changed."
return 0
fi
Log "Creating after run master replica file list."
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --list-only \"$MASTER_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_master-tree-after_$SCRIPT_PID &"
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval $rsync_cmd
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval == 0 ] && [ -f $RUN_DIR/osync_master-tree-after_$SCRIPT_PID ]
then
mv $RUN_DIR/osync_master-tree-after_$SCRIPT_PID "$MASTER_STATE_DIR/master-tree-after"
echo "master-replica-tree-after.success" > "$MASTER_STATE_DIR/last-action"
else
LogError "Cannot create slave file list."
echo "master-replica-tree-after.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
fi
}
function slave_tree_after
{
if [ $dryrun -eq 1 ]
then
Log "No need to create after frun slave replica file list, nothing should have changed."
return 0
fi
Log "Creating after run slave replica file list."
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --list-only $REMOTE_USER@$REMOTE_HOST:\"$ESC_SLAVE_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_slave-tree-after_$SCRIPT_PID &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -rlptgoDE8 $RSYNC_ARGS --exclude \"$OSYNC_DIR\" $RSYNC_EXCLUDE --list-only \"$SLAVE_SYNC_DIR/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > $RUN_DIR/osync_slave-tree-after_$SCRIPT_PID &"
fi
if [ "$DEBUG" == "yes" ]
then
Log "RSYNC_CMD: $rsync_cmd"
fi
eval $rsync_cmd
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval == 0 ] && [ -f $RUN_DIR/osync_slave-tree-after_$SCRIPT_PID ]
then
mv $RUN_DIR/osync_slave-tree-after_$SCRIPT_PID "$MASTER_STATE_DIR/slave-tree-after"
echo "slave-replica-tree-after.success" > "$MASTER_STATE_DIR/last-action"
else
LogError "Cannot create slave file list."
echo "slave-replica-tree-after.fail" > "$MASTER_STATE_DIR/last-action"
exit 1
fi
}
###### Sync function in 10 steps (functions above)
function Sync
{
Log "Starting synchronization task."
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ -f "$MASTER_STATE_DIR/last-action" ] && [ "$RESUME_SYNC" == "yes" ]
then
resume_sync=$(cat "$MASTER_STATE_DIR/last-action")
if [ -f "$MASTER_STATE_DIR/resume-count" ]
then
resume_count=$(cat "$MASTER_STATE_DIR/resume-count")
else
resume_count=0
fi
if [ $resume_count -lt $RESUME_TRY ]
then
if [ "$resume_sync" != "sync.success" ]
then
Log "WARNING: Trying to resume aborted osync execution on $(stat --format %y "$MASTER_STATE_DIR/last-action") at task [$resume_sync]. [$resume_count] previous tries."
echo $(($resume_count+1)) > "$MASTER_STATE_DIR/resume-count"
else
resume_sync=none
fi
else
Log "Will not resume aborted osync execution. Too much resume tries [$resume_count]."
echo "noresume" > "$MASTER_STATE_DIR/last-action"
echo "0" > "$MASTER_STATE_DIR/resume-count"
resume_sync=none
fi
else
resume_sync=none
fi
################################################################################################################################################# Actual sync begins here
## This replaces the case statement below because ;& operator is not supported in bash 3.2... Code is more messy than case :(
if [ "$resume_sync" == "none" ] || [ "$resume_sync" == "noresume" ] || [ "$resume_sync" == "master-replica-tree.fail" ]
then
master_tree_current
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "master-replica-tree.success" ] || [ "$resume_sync" == "slave-replica-tree.fail" ]
then
slave_tree_current
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "slave-replica-tree.success" ] || [ "$resume_sync" == "master-replica-deleted-list.fail" ]
then
master_delete_list
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "master-replica-deleted-list.success" ] || [ "$resume_sync" == "slave-replica-deleted-list.fail" ]
then
slave_delete_list
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "slave-replica-deleted-list.success" ] || [ "$resume_sync" == "update-master-replica.fail" ] || [ "$resume_sync" == "update-slave-replica.fail" ]
then
if [ "$CONFLICT_PREVALANCE" != "master" ]
then
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "slave-replica-deleted-list.success" ] || [ "$resume_sync" == "update-master-replica.fail" ]
then
sync_update_master
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "update-master-replica.success" ] || [ "$resume_sync" == "update-slave-replica.fail" ]
then
sync_update_slave
resume_sync="resumed"
fi
else
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "slave-replica-deleted-list.success" ] || [ "$resume_sync" == "update-slave-replica.fail" ]
then
sync_update_slave
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "update-slave-replica.success" ] || [ "$resume_sync" == "update-master-replica.fail" ]
then
sync_update_master
resume_sync="resumed"
fi
fi
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "update-slave-replica.success" ] || [ "$resume_sync" == "update-master-replica.success" ] || [ "$resume_sync" == "delete-propagation-slave.fail" ]
then
delete_on_slave
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "delete-propagation-slave.success" ] || [ "$resume_sync" == "delete-propagation-master.fail" ]
then
delete_on_master
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "delete-propagation-master.success" ] || [ "$resume_sync" == "master-replica-tree-after.fail" ]
then
master_tree_after
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "master-replica-tree-after.success" ] || [ "$resume_sync" == "slave-replica-tree-after.fail" ]
then
slave_tree_after
resume_sync="resumed"
fi
# ## In this case statement, ;& means executing every command below regardless of conditions. Only works with bash v4
# case $resume_sync in
# none|noresume)
# ;&
# master-replica-tree.fail)
# master_tree_current
# ;&
# master-replica-tree.success|slave-replica-tree.fail)
# slave_tree_current
# ;&
# slave-replica-tree.success|master-replica-deleted-list.fail)
# master_delete_list
# ;&
# master-replica-deleted-list.success|slave-replica-deleted-list.fail)
# slave_delete_list
# ;&
# slave-replica-deleted-list.success|update-master-replica.fail|update-slave-replica.fail)
# if [ "$CONFLICT_PREVALANCE" != "master" ]
# then
# case $resume_sync in
# none)
# ;&
# slave-replica-deleted-list.success|update-master-replica.fail)
# sync_update_master
# ;&
# update-master-replica.success|update-slave-replica.fail)
# sync_update_slave
# ;;
# esac
# else
# case $resume_sync in
# none)
# ;&
# slave-replica-deleted-list.success|update-slave-replica.fail)
# sync_update_slave
# ;&
# update-slave-replica.success|update-master-replica.fail)
# sync_update_master
# ;;
# esac
# fi
# ;&
# update-slave-replica.success|update-master-replica.success|delete-propagation-slave.fail)
# delete_on_slave
# ;&
# delete-propagation-slave.success|delete-propagation-master.fail)
# delete_on_master
# ;&
# delete-propagation-master.success|master-replica-tree-after.fail)
# master_tree_after
# ;&
# master-replica-tree-after.success|slave-replica-tree-after.fail)
# slave_tree_after
# ;;
# esac
Log "Finished synchronization task."
echo "sync.success" > "$MASTER_STATE_DIR/last-action"
echo "0" > "$MASTER_STATE_DIR/resume-count"
}
function SoftDelete
{
if [ "$CONFLICT_BACKUP" != "no" ] && [ $CONFLICT_BACKUP_DAYS -ne 0 ]
then
if [ -d "$MASTER_BACKUP_DIR" ]
then
Log "Removing backups older than $CONFLICT_BACKUP_DAYS days on master replica."
if [ $dryrun -eq 1 ]
then
$FIND_CMD "$MASTER_BACKUP_DIR/" -ctime +$CONFLICT_BACKUP_DAYS &
else
$FIND_CMD "$MASTER_BACKUP_DIR/" -ctime +$CONFLICT_BACKUP_DAYS | xargs rm -rf &
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing conflict backup cleanup on master replica."
else
Log "Conflict backup cleanup complete on master replica."
fi
elif [ -d "$MASTER_BACKUP_DIR" ] && ! [ -w "$MASTER_BACKUP_DIR" ]
then
LogError "Warning: Master replica conflict backup dir [$MASTER_BACKUP_DIR] isn't writable. Cannot clean old files."
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
Log "Removing backups older than $CONFLICT_BACKUP_DAYS days on remote slave replica."
if [ $dryrun -eq 1 ]
then
eval "$SSH_CMD \"if [ -w \\\"$SLAVE_BACKUP_DIR\\\" ]; then $COMMAND_SUDO $REMOTE_FIND_CMD \\\"$SLAVE_BACKUP_DIR/\\\" -ctime +$CONFLICT_BACKUP_DAYS; fi\""
else
eval "$SSH_CMD \"if [ -w \\\"$SLAVE_BACKUP_DIR\\\" ]; then $COMMAND_SUDO $REMOTE_FIND_CMD \\\"$SLAVE_BACKUP_DIR/\\\" -ctime +$CONFLICT_BACKUP_DAYS | xargs rm -rf; fi\""
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing conflict backup cleanup on slave replica."
else
Log "Conflict backup cleanup complete on slave replica."
fi
else
if [ -w "$SLAVE_BACKUP_DIR" ]
then
Log "Removing backups older than $CONFLICT_BACKUP_DAYS days on slave replica."
if [ $dryrun -eq 1 ]
then
$FIND_CMD "$SLAVE_BACKUP_DIR/" -ctime +$CONFLICT_BACKUP_DAYS
else
$FIND_CMD "$SLAVE_BACKUP_DIR/" -ctime +$CONFLICT_BACKUP_DAYS | xargs rm -rf
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing conflict backup cleanup on slave replica."
else
Log "Conflict backup cleanup complete on slave replica."
fi
elif [ -d "$SLAVE_BACKUP_DIR" ] && ! [ -w "$SLAVE_BACKUP_DIR" ]
then
LogError "Warning: Slave replica conflict backup dir [$SLAVE_BACKUP_DIR] isn't writable. Cannot clean old files."
fi
fi
fi
if [ "$SOFT_DELETE" != "no" ] && [ $SOFT_DELETE_DAYS -ne 0 ]
then
if [ -w "$MASTER_DELETE_DIR" ]
then
Log "Removing soft deleted items older than $SOFT_DELETE_DAYS days on master replica."
if [ $dryrun -eq 1 ]
then
$FIND_CMD "$MASTER_DELETE_DIR/" -ctime +$SOFT_DELETE_DAYS
else
$FIND_CMD "$MASTER_DELETE_DIR/" -ctime +$SOFT_DELETE_DAYS | xargs rm -rf
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing soft delete cleanup on master replica."
else
Log "Soft delete cleanup complete on master replica."
fi
elif [ -d "$MASTER_DELETE_DIR" ] && ! [ -w $MASTER_DELETE_DIR ]
then
LogError "Warning: Master replica deletion backup dir [$MASTER_DELETE_DIR] isn't writable. Cannot clean old files."
fi
if [ "$REMOTE_SYNC" == "yes" ]
then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
Log "Removing soft deleted items older than $SOFT_DELETE_DAYS days on remote slave replica."
if [ $dryrun -eq 1 ]
then
eval "$SSH_CMD \"if [ -w \\\"$SLAVE_DELETE_DIR\\\" ]; then $COMMAND_SUDO $REMOTE_FIND_CMD \\\"$SLAVE_DELETE_DIR/\\\" -ctime +$SOFT_DELETE_DAYS; fi\""
else
eval "$SSH_CMD \"if [ -w \\\"$SLAVE_DELETE_DIR\\\" ]; then $COMMAND_SUDO $REMOTE_FIND_CMD \\\"$SLAVE_DELETE_DIR/\\\" -ctime +$SOFT_DELETE_DAYS | xargs rm -rf; fi\""
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing soft delete cleanup on slave replica."
else
Log "Soft delete cleanup complete on slave replica."
fi
else
if [ -w "$SLAVE_DELETE_DIR" ]
then
Log "Removing soft deleted items older than $SOFT_DELETE_DAYS days on slave replica."
if [ $dryrun -eq 1 ]
then
$FIND_CMD "$SLAVE_DELETE_DIR/" -ctime +$SOFT_DELETE_DAYS
else
$FIND_CMD "$SLAVE_DELETE_DIR/" -ctime +$SOFT_DELETE_DAYS | xargs rm -rf
fi
child_pid=$!
WaitForCompletion $child_pid $SOFT_MAX_EXEC_TIME 0
retval=$?
if [ $retval -ne 0 ]
then
LogError "Error while executing soft delete cleanup on slave replica."
else
Log "Soft delete cleanup complete on slave replica."
fi
elif [ -d "$SLAVE_DELETE_DIR" ] && ! [ -w "$SLAVE_DELETE_DIR" ]
then
LogError "Warning: Slave replica deletion backup dir [$SLAVE_DELETE_DIR] isn't writable. Cannot clean old files."
fi
fi
fi
}
function Init
{
# Set error exit code if a piped command fails
set -o pipefail
set -o errtrace
trap TrapStop SIGINT SIGKILL SIGHUP SIGTERM SIGQUIT
trap TrapQuit EXIT
if [ "$DEBUG" == "yes" ]
then
trap 'TrapError ${LINENO} $?' ERR
fi
if [ "$LOGFILE" == "" ]
then
if [ -w /var/log ]
then
LOG_FILE=/var/log/osync_$OSYNC_VERSION-$SYNC_ID.log
else
LOG_FILE=./osync_$OSYNC_VERSION-$SYNC_ID.log
fi
else
LOG_FILE="$LOGFILE"
fi
MAIL_ALERT_MSG="Warning: Execution of osync instance $OSYNC_ID (pid $SCRIPT_PID) as $LOCAL_USER@$LOCAL_HOST produced errors."
## If running Msys, find command of windows is used instead of msys one
if [ "$LOCAL_OS" == "msys" ]
then
FIND_CMD=$(dirname $BASH)/find
else
FIND_CMD=find
fi
if [ "$REMOTE_OS" == "msys" ]
then
REMOTE_FIND_CMD=$(dirname $BASH)/find
else
REMOTE_FIND_CMD=find
fi
## 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. This is freaking unholy to find a workaround...
## So actually use $MASTER_SYNC_DIR for local rsync calls and $ESC_MASTER_SYNC_DIR for remote rsync calls like user@host:$ESC_MASTER_SYNC_DIR
## The same applies for slave 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
ESC_MASTER_SYNC_DIR=$(EscapeSpaces "$MASTER_SYNC_DIR")
ESC_SLAVE_SYNC_DIR=$(EscapeSpaces "$SLAVE_SYNC_DIR")
MASTER_STATE_DIR="$MASTER_SYNC_DIR/$OSYNC_DIR/state"
SLAVE_STATE_DIR="$SLAVE_SYNC_DIR/$OSYNC_DIR/state"
## Working directories to keep backups of updated / deleted files
MASTER_BACKUP_DIR="$OSYNC_DIR/backups"
MASTER_DELETE_DIR="$OSYNC_DIR/deleted"
SLAVE_BACKUP_DIR="$OSYNC_DIR/backups"
SLAVE_DELETE_DIR="$OSYNC_DIR/deleted"
## 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 $REMOTE_PORT"
RSYNC_SSH_CMD="$(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 $(type -p $RSYNC_REMOTE_PATH)/$RSYNC_EXECUTABLE)"
else
RSYNC_PATH="sudo $RSYNC_EXECUTABLE"
fi
COMMAND_SUDO="sudo"
else
if [ "$RSYNC_REMOTE_PATH" != "" ]
then
RSYNC_PATH="$(type -p $RSYNC_REMOTE_PATH)/$RSYNC_EXECUTABLE)"
else
RSYNC_PATH="$RSYNC_EXECUTABLE"
fi
COMMAND_SUDO=""
fi
## Set rsync options
RSYNC_ARGS="-"
if [ "$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 [ $dryrun -eq 1 ]
then
RSYNC_ARGS=$RSYNC_ARGS"n"
DRY_WARNING="/!\ DRY RUN"
fi
if [ "$RSYNC_ARGS" == "-" ]
then
RSYNC_ARGS=""
fi
if [ "$BANDWIDTH" != "" ] && [ "$BANDWIDTH" != "0" ]
then
RSYNC_ARGS=$RSYNC_ARGS" --bwlimit=$BANDWIDTH"
fi
## Conflict options
if [ "$CONFLICT_BACKUP" != "no" ]
then
MASTER_BACKUP="--backup --backup-dir=\"$MASTER_BACKUP_DIR\""
SLAVE_BACKUP="--backup --backup-dir=\"$SLAVE_BACKUP_DIR\""
if [ "$CONFLICT_BACKUP_MULTIPLE" == "yes" ]
then
MASTER_BACKUP="$MASTER_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
SLAVE_BACKUP="$SLAVE_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
fi
else
MASTER_BACKUP=
SLAVE_BACKUP=
fi
## Soft delete options
if [ "$SOFT_DELETE" != "no" ]
then
MASTER_DELETE="--backup --backup-dir=\"$MASTER_DELETE_DIR\""
SLAVE_DELETE="--backup --backup-dir=\"$SLAVE_DELETE_DIR\""
else
MASTER_DELETE=
SLAVE_DELETE=
fi
## Add Rsync exclude patterns
RsyncExcludePattern
}
function Main
{
CreateOsyncDirs
LockDirectories
Sync
}
function Usage
{
echo "Osync $OSYNC_VERSION $OSYNC_BUILD"
echo ""
echo "You may use Osync with a configuration file, or use its default options for quick command line sync."
echo "Normal usage: osync /path/to/conf.file [--dry] [--silent] [--verbose] [--no-maxtime] [--force-unlock]"
echo "Quick usage: osync --master=/path/to/master/replica --slave=/path/to/slave/replica [--dry] [--silent] [--verbose] [--no-max-time] [--force-unlock]"
echo ""
echo "--dry: will run osync without actually doing anything; just testing"
echo "--silent: will run osync without any output to stdout, usefull for cron jobs"
echo "--verbose: adds command outputs"
echo "--no-maxtime: disables any soft and hard execution time checks"
echo "--force-unlock: will override any existing active or dead locks on master and slave replica"
echo ""
echo "Quick usage:"
echo "--master= : Specify master replica path. Will contain state directory."
echo "--slave= : Spacift slave replica path. Will contain state directory."
exit 128
}
# Comand line argument flags
dryrun=0
silent=0
force_unlock=0
no_maxtime=0
if [ "$DEBUG" == "yes" ]
then
verbose=1
else
verbose=0
fi
# Alert flags
soft_alert_total=0
error_alert=0
soft_stop=0
quick_sync=0
if [ $# -eq 0 ]
then
Usage
fi
for i in "$@"
do
case $i in
--dry)
dryrun=1
;;
--silent)
silent=1
;;
--verbose)
verbose=1
;;
--force-unlock)
force_unlock=1
;;
--no-maxtime)
no_maxtime=1
;;
--help|-h|--version|-v)
Usage
;;
--master=*)
quick_sync=$(($quick_sync + 1))
no_maxtime=1
MASTER_SYNC_DIR=${i##*=}
;;
--slave=*)
quick_sync=$(($quick_sync + 1))
SLAVE_SYNC_DIR=${i##*=}
no_maxtime=1
;;
esac
done
CheckEnvironment
if [ $? == 0 ]
then
if [ $quick_sync -eq 2 ]
then
SYNC_ID="quicksync task"
MINIMUM_SPACE=1024
REMOTE_SYNC=no
CONFLICT_BACKUP_DAYS=30
SOFT_DELETE_DAYS=30
else
LoadConfigFile "$1"
fi
Init
DATE=$(date)
Log "-------------------------------------------------------------"
Log "$DRY_WARNING $DATE - Osync v$OSYNC_VERSION script begin."
Log "-------------------------------------------------------------"
Log "Sync task [$SYNC_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)"
GetOperatingSystem
if [ $no_maxtime -eq 1 ]
then
SOFT_MAX_EXEC_TIME=0
HARD_MAX_EXEC_TIME=0
fi
CheckMasterSlaveDirs
CheckMinimumSpace
if [ $? == 0 ]
then
RunBeforeHook
Main
if [ $? == 0 ]
then
SoftDelete
fi
RunAfterHook
fi
else
LogError "Environment not suitable to run osync."
exit 1
fi
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