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osync/dev/n_osync.sh

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#!/usr/bin/env bash
PROGRAM="osync" # Rsync based two way sync engine with fault tolerance
AUTHOR="(C) 2013-2016 by Orsiris de Jong"
CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
PROGRAM_VERSION=1.2-beta2
PROGRAM_BUILD=2016111508
IS_STABLE=no
# Execution order #__WITH_PARANOIA_DEBUG
# Function Name Is parallel #__WITH_PARANOIA_DEBUG
# GetLocalOS no #__WITH_PARANOIA_DEBUG
# InitLocalOSSettings no #__WITH_PARANOIA_DEBUG
# CheckEnvironment no #__WITH_PARANOIA_DEBUG
# PreInit no #__WITH_PARANOIA_DEBUG
# Init no #__WITH_PARANOIA_DEBUG
# PostInit no #__WITH_PARANOIA_DEBUG
# GetRemoteOS no #__WITH_PARANOIA_DEBUG
# InitRemoteOSSettings no #__WITH_PARANOIA_DEBUG
# CheckReplicaPaths yes #__WITH_PARANOIA_DEBUG
# CheckDiskSpace yes #__WITH_PARANOIA_DEBUG
# RunBeforeHook yes #__WITH_PARANOIA_DEBUG
# Main no #__WITH_PARANOIA_DEBUG
# CreateStateDirs yes #__WITH_PARANOIA_DEBUG
# CheckLocks yes #__WITH_PARANOIA_DEBUG
# WriteLockFiles yes #__WITH_PARANOIA_DEBUG
# Sync no #__WITH_PARANOIA_DEBUG
# treeList yes #__WITH_PARANOIA_DEBUG
# treeList yes #__WITH_PARANOIA_DEBUG
# deleteList yes #__WITH_PARANOIA_DEBUG
# deleteList yes #__WITH_PARANOIA_DEBUG
# syncAttrs no #__WITH_PARANOIA_DEBUG
# _getFileCtimeMtime yes #__WITH_PARANOIA_DEBUG
# syncUpdate no #__WITH_PARANOIA_DEBUG
# syncUpdate no #__WITH_PARANOIA_DEBUG
# deletionPropagation yes #__WITH_PARANOIA_DEBUG
# deletionPropagation yes #__WITH_PARANOIA_DEBUG
# treeList yes #__WITH_PARANOIA_DEBUG
# treeList yes #__WITH_PARANOIA_DEBUG
# SoftDelete yes #__WITH_PARANOIA_DEBUG
# RunAfterHook yes #__WITH_PARANOIA_DEBUG
# UnlockReplicas yes #__WITH_PARANOIA_DEBUG
# CleanUp no #__WITH_PARANOIA_DEBUG
source "./ofunctions.sh"
_LOGGER_PREFIX="time"
## Working directory. This directory exists in any replica and contains state files, backups, soft deleted files etc
OSYNC_DIR=".osync_workdir"
function TrapStop {
if [ $SOFT_STOP -eq 0 ]; then
Logger " /!\ WARNING: Manual exit of osync is really not recommended. Sync will be in inconsistent state." "WARN"
Logger " /!\ WARNING: If you are sure, please hit CTRL+C another time to quit." "WARN"
SOFT_STOP=1
return 1
fi
if [ $SOFT_STOP -eq 1 ]; then
Logger " /!\ WARNING: CTRL+C hit twice. Exiting osync. Please wait while replicas get unlocked..." "WARN"
SOFT_STOP=2
exit 2
fi
}
function TrapQuit {
local exitcode
# Get ERROR / WARN alert flags from subprocesses that call Logger
if [ -f "$RUN_DIR/$PROGRAM.Logger.warn.$SCRIPT_PID" ]; then
WARN_ALERT=true
fi
if [ -f "$RUN_DIR/$PROGRAM.Logger.error.$SCRIPT_PID" ]; then
ERROR_ALERT=true
fi
if [ $ERROR_ALERT == true ]; then
UnlockReplicas
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with errors." "ERROR"
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
exitcode=1
elif [ $WARN_ALERT == true ]; then
UnlockReplicas
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with warnings." "WARN"
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
exitcode=2 # Warning exit code must not force daemon mode to quit
else
UnlockReplicas
RunAfterHook
CleanUp
Logger "$PROGRAM finished." "NOTICE"
exitcode=0
fi
KillChilds $$ > /dev/null 2>&1
exit $exitcode
}
function CheckEnvironment {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ "$REMOTE_OPERATION" == "yes" ]; then
if ! type ssh > /dev/null 2>&1 ; then
Logger "ssh not present. Cannot start sync." "CRITICAL"
exit 1
fi
if [ "$SSH_PASSWORD_FILE" != "" ] && ! type sshpass > /dev/null 2>&1 ; then
Logger "sshpass not present. Cannot use password authentication." "CRITICAL"
exit 1
fi
fi
if ! type rsync > /dev/null 2>&1 ; then
Logger "rsync not present. Sync cannot start." "CRITICAL"
exit 1
fi
}
function CheckCurrentConfig {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
# Check all variables that should contain "yes" or "no"
declare -a yes_no_vars=(CREATE_DIRS SUDO_EXEC SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS CHECKSUM RSYNC_COMPRESS CONFLICT_BACKUP CONFLICT_BACKUP_MULTIPLE SOFT_DELETE RESUME_SYNC FORCE_STRANGER_LOCK_RESUME PARTIAL DELTA_COPIES STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
for i in "${yes_no_vars[@]}"; do
test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value [\$$i] defined in config file. Correct your config file or update it using the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
# Check all variables that should contain a numerical value >= 0
declare -a num_vars=(MINIMUM_SPACE BANDWIDTH SOFT_MAX_EXEC_TIME HARD_MAX_EXEC_TIME KEEP_LOGGING MIN_WAIT MAX_WAIT CONFLICT_BACKUP_DAYS SOFT_DELETE_DAYS RESUME_TRY MAX_EXEC_TIME_PER_CMD_BEFORE MAX_EXEC_TIME_PER_CMD_AFTER)
for i in "${num_vars[@]}"; do
test="if [ $(IsNumericExpand \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value [\$$i] defined in config file. Correct your config file or update it using the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
}
function CheckCurrentConfigAll {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ "$INSTANCE_ID" == "" ]; then
Logger "No INSTANCE_ID defined in config file." "CRITICAL"
exit 1
fi
if [ "$INITIATOR_SYNC_DIR" == "" ]; then
Logger "No INITIATOR_SYNC_DIR set in config file." "CRITICAL"
exit 1
fi
if [ "$TARGET_SYNC_DIR" == "" ]; then
Logger "Not TARGET_SYNC_DIR set in config file." "CRITICAL"
exit 1
fi
#TODO(low): Add runtime variable tests (RSYNC_ARGS etc)
if [ "$REMOTE_OPERATION" == "yes" ] && ([ ! -f "$SSH_RSA_PRIVATE_KEY" ] && [ ! -f "$SSH_PASSWORD_FILE" ]); then
Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY] nor password file [$SSH_PASSWORD_FILE]. No authentication method provided." "CRITICAL"
exit 1
fi
if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
Logger "Bogus skip deletion parameter." "CRITICAL"
exit 1
fi
}
###### Osync specific functions (non shared)
function _CheckReplicaPathsLocal {
local replica_path="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ ! -w "$replica_path" ]; then
Logger "Local replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
if [ ! -d "$replica_path" ]; then
if [ "$CREATE_DIRS" == "yes" ]; then
$COMMAND_SUDO mkdir -p "$replica_path" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot create local replica path [$replica_path]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)"
exit 1
else
Logger "Created local replica path [$replica_path]." "NOTICE"
fi
else
Logger "Local replica path [$replica_path] does not exist." "CRITICAL"
exit 1
fi
fi
}
function _CheckReplicaPathsRemote {
local replica_path="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ ! -w \"'$replica_path'\" ];then exit 1; fi" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Remote replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
cmd=$SSH_CMD' "if ! [ -d \"'$replica_path'\" ]; then if [ \"'$CREATE_DIRS'\" == \"yes\" ]; then '$COMMAND_SUDO' mkdir -p \"'$replica_path'\"; fi; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot create remote replica path [$replica_path]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
}
function CheckReplicaPaths {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
# Use direct comparaison before having a portable realpath implementation
#INITIATOR_SYNC_DIR_CANN=$(realpath "${INITIATOR[$__replicaDir]}") #TODO(verylow): investigate realpath & readlink issues on MSYS and busybox here
#TARGET_SYNC_DIR_CANN=$(realpath "${TARGET[$__replicaDir]}")
if [ "$REMOTE_OPERATION" != "yes" ]; then
if [ "${INITIATOR[$__replicaDir]}" == "${TARGET[$__replicaDir]}" ]; then
Logger "Initiator and target path [${INITIATOR[$__replicaDir]}] cannot be the same." "CRITICAL"
exit 1
fi
fi
_CheckReplicaPathsLocal "${INITIATOR[$__replicaDir]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckReplicaPathsLocal "${TARGET[$__replicaDir]}" &
pids="$pids;$!"
else
_CheckReplicaPathsRemote "${TARGET[$__replicaDir]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
}
function _CheckDiskSpaceLocal {
local replica_path="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local diskSpace
Logger "Checking minimum disk space in [$replica_path]." "NOTICE"
diskSpace=$(df "$replica_path" | tail -1 | awk '{print $4}')
# Ugly fix for df in some busybox environments that can only show human formats
if [ $(IsInteger $diskSpace) -eq 0 ]; then
diskSpace=$(HumanToNumeric $diskSpace)
fi
if [ $diskSpace -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($diskSpace KB)." "WARN"
fi
}
function _CheckDiskSpaceRemote {
local replica_path="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
Logger "Checking remote minimum disk space in [$replica_path]." "NOTICE"
local cmd
local diskSpace
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "'$COMMAND_SUDO' df \"'$replica_path'\"" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot get free space on target [$replica_path]." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
diskSpace=$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID | tail -1 | awk '{print $4}')
# Ugly fix for df in some busybox environments that can only show human formats
if [ $(IsInteger $diskSpace) -eq 0 ]; then
diskSpace=$(HumanToNumeric $diskSpace)
fi
if [ $diskSpace -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($diskSpace KB)." "WARN"
fi
fi
}
function CheckDiskSpace {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
if [ $MINIMUM_SPACE -eq 0 ]; then
Logger "Skipped minimum space check." "NOTICE"
return 0
fi
_CheckDiskSpaceLocal "${INITIATOR[$__replicaDir]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckDiskSpaceLocal "${TARGET[$__replicaDir]}" &
pids="$pids;$!"
else
_CheckDiskSpaceRemote "${TARGET[$__replicaDir]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
}
function _CreateStateDirsLocal {
local replica_state_dir="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if ! [ -d "$replica_state_dir" ]; then
$COMMAND_SUDO mkdir -p "$replica_state_dir" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot create state dir [$replica_state_dir]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
fi
}
function _CreateStateDirsRemote {
local replica_state_dir="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if ! [ -d \"'$replica_state_dir'\" ]; then '$COMMAND_SUDO' mkdir -p \"'$replica_state_dir'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Cannot create remote state dir [$replica_state_dir]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
exit 1
fi
}
function CreateStateDirs {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
_CreateStateDirsLocal "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CreateStateDirsLocal "${TARGET[$__replicaDir]}${TARGET[$__stateDir]}" &
pids="$pids;$!"
else
_CreateStateDirsRemote "${TARGET[$__replicaDir]}${TARGET[$__stateDir]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
}
function _CheckLocksLocal {
local lockfile="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local lockfile_content
local lock_pid
local lock_instance_id
if [ -f "$lockfile" ]; then
lockfile_content=$(cat $lockfile)
Logger "Master lock pid present: $lockfile_content" "DEBUG"
lock_pid=${lockfile_content%@*}
lock_instance_id=${lockfile_content#*@}
kill -9 $lock_pid > /dev/null 2>&1
if [ $? != 0 ]; then
Logger "There is a dead osync lock in [$lockfile]. Instance [$lock_pid] no longer running. Resuming." "NOTICE"
#rm "$lockfile"
#if [ $? != 0 ]; then
# Logger "Cannot remove lock in [$lockfile]." "CRITICAL"
# exit 1
#fi
else
Logger "There is already a local instance of osync running [$lock_pid] for this replica. Cannot start." "CRITICAL"
exit 1
fi
fi
}
function _CheckLocksRemote {
local lockfile="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
local lock_pid
local lock_instance_id
local lockfile_content
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ -f \"'$lockfile'\" ]; then cat \"'$lockfile'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'"'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
lockfile_content=$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)
else
Logger "Cannot get remote lockfile." "CRITICAL"
exit 1
fi
fi
lock_pid=${lockfile_content%@*}
lock_instance_id=${lockfile_content#*@}
if [ "$lock_pid" != "" ] && [ "$lock_instance_id" != "" ]; then
Logger "Remote lock is: $lock_pid@$lock_instance_id" "DEBUG"
kill -0 $lock_pid > /dev/null 2>&1
if [ $? != 0 ]; then
if [ "$lock_instance_id" == "$INSTANCE_ID" ]; then
Logger "There is a dead osync lock on target replica that corresponds to this initiator sync id [$lock_instance_id]. Instance [$lock_pid] no longer running. Resuming." "NOTICE"
else
if [ "$FORCE_STRANGER_LOCK_RESUME" == "yes" ]; then
Logger "WARNING: There is a dead osync lock on target replica that does not correspond to this initiator sync-id [$lock_instance_id]. Forcing resume." "WARN"
else
Logger "There is a dead osync lock on target replica that does not correspond to this initiator sync-id [$lock_instance_id]. Will not resume." "CRITICAL"
exit 1
fi
fi
else
Logger "There is already a local instance of osync that locks target replica [$lock_pid@$lock_instance_id]. Cannot start." "CRITICAL"
exit 1
fi
fi
}
function CheckLocks {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
if [ $_NOLOCKS == true ]; then
return 0
fi
# Do not bother checking for locks when FORCE_UNLOCK is set
if [ $FORCE_UNLOCK == true ]; then
WriteLockFiles
if [ $? != 0 ]; then
exit 1
fi
else
_CheckLocksLocal "${INITIATOR[$__lockFile]}" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckLocksLocal "${TARGET[$__lockFile]}" &
pids="$pids;$!"
else
_CheckLocksRemote "${TARGET[$__lockFile]}" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
Logger "Cancelling task." "CRITICAL"
exit 1
fi
WriteLockFiles
fi
}
function _WriteLockFilesLocal {
local lockfile="${1}"
local replicaType="${2}"
__CheckArguments 2 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
(
set -o noclobber
$COMMAND_SUDO echo "$SCRIPT_PID@$INSTANCE_ID" > "$lockfile" 2> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-$replicaType.$SCRIPT_PID"
)
if [ $? != 0 ]; then
Logger "Could not create lock file on local $replicaType in [$lockfile]." "CRITICAL"
Logger "Command output\n$($RUN_DIR/$PROGRAM.${FUNCNAME[0]}-$replicaType.$SCRIPT_PID)" "NOTICE"
return 1
else
Logger "Locked local $replicaType replica in [$lockfile]." "DEBUG"
fi
}
function _WriteLockFilesRemote {
local lockfile="${1}"
local replicaType="${2}"
__CheckArguments 2 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "( set -o noclobber; echo '$SCRIPT_PID@$INSTANCE_ID' | '$COMMAND_SUDO' tee \"'$lockfile'\")" > /dev/null 2> $RUN_DIR/$PROGRAM._WriteLockFilesRemote.$replicaType.$SCRIPT_PID'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Could not create lock file on remote $replicaType in [$lockfile]." "CRITICAL"
Loggxer "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.$SCRIPT_PID)" "NOTICE"
return 1
else
Logger "Locked remote $replicaType replica in [$lockfile]." "DEBUG"
fi
}
function WriteLockFiles {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local initiatorPid
local targetPid
local pidArray
local pid
_WriteLockFilesLocal "${INITIATOR[$__lockFile]}" "${INITIATOR[$__type]}"&
initiatorPid="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_WriteLockFilesLocal "${TARGET[$__lockFile]}" "${TARGET[$__type]}" &
targetPid="$!"
else
_WriteLockFilesRemote "${TARGET[$__lockFile]}" "${TARGET[$__type]}" &
targetPid="$!"
fi
INITIATOR_LOCK_FILE_EXISTS=true
TARGET_LOCK_FILE_EXISTS=true
WaitForTaskCompletion "$initiatorPid;$targetPid" 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -ne 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ "$pid" == "$initiatorPid" ]; then
INITIATOR_LOCK_FILE_EXISTS=false
elif [ "$pid" == "$targetPid" ]; then
TARGET_LOCK_FILE_EXISTS=false
fi
done
Logger "Cancelling task." "CRITICAL"
exit 1
fi
}
function _UnlockReplicasLocal {
local lockfile="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ -f "$lockfile" ]; then
$COMMAND_SUDO rm "$lockfile"
if [ $? != 0 ]; then
Logger "Could not unlock local replica." "ERROR"
else
Logger "Removed local replica lock." "DEBUG"
fi
fi
}
function _UnlockReplicasRemote {
local lockfile="${1}"
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if [ -f \"'$lockfile'\" ]; then '$COMMAND_SUDO' rm -f \"'$lockfile'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Could not unlock remote replica." "ERROR"
Logger "Command Output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Removed remote replica lock." "DEBUG"
fi
}
function UnlockReplicas {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
if [ $_NOLOCKS == true ]; then
return 0
fi
if [ $INITIATOR_LOCK_FILE_EXISTS == true ]; then
_UnlockReplicasLocal "${INITIATOR[$__lockFile]}" &
pids="$!"
fi
if [ $TARGET_LOCK_FILE_EXISTS == true ]; then
if [ "$REMOTE_OPERATION" != "yes" ]; then
_UnlockReplicasLocal "${TARGET[$__lockFile]}" &
pids="$pids;$!"
else
_UnlockReplicasRemote "${TARGET[$__lockFile]}" &
pids="$pids;$!"
fi
fi
if [ "$pids" != "" ]; then
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
}
###### Sync core functions
## Rsync does not like spaces in directory names, considering it as two different directories. Handling this schema by escaping space.
## It seems this only happens when trying to execute an rsync command through weval $rsyncCmd on a remote host.
## So I am using unescaped $INITIATOR_SYNC_DIR for local rsync calls and escaped $ESC_INITIATOR_SYNC_DIR for remote rsync calls like user@host:$ESC_INITIATOR_SYNC_DIR
## The same applies for target sync dir..............................................T.H.I.S..I.S..A..P.R.O.G.R.A.M.M.I.N.G..N.I.G.H.T.M.A.R.E
function treeList {
local replicaPath="${1}" # path to the replica for which a tree needs to be constructed
local replicaType="${2}" # replica type: initiator, target
local treeFilename="${3}" # filename to output tree (will be prefixed with $replicaType)
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local escapedReplicaPath
local rsyncCmd
escapedReplicaPath=$(EscapeSpaces "$replicaPath")
Logger "Creating $replicaType replica file list [$replicaPath]." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ] && [ "$replicaType" == "${TARGET[$__type]}" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -L $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE -e \"$RSYNC_SSH_CMD\" --list-only $REMOTE_USER@$REMOTE_HOST:\"$escapedReplicaPath\" 2> \"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.error.$SCRIPT_PID\" | (grep -E \"^-|^d|^l\" || :) | (awk '{\$1=\$2=\$3=\$4=\"\" ;print}' || :) | (awk '{\$1=\$1 ;print}' || :) | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.$SCRIPT_PID\""
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS -L $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --list-only \"$replicaPath\" 2> \"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.error.$SCRIPT_PID\" | (grep -E \"^-|^d|^l\" || :) | (awk '{\$1=\$2=\$3=\$4=\"\" ;print}' || :) | (awk '{\$1=\$1 ;print}' || :) | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.$SCRIPT_PID\""
fi
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd"
retval=$?
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.$SCRIPT_PID" ]; then
mv -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.$SCRIPT_PID" "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType$treeFilename"
fi
## Retval 24 = some files vanished while creating list
if ([ $retval == 0 ] || [ $retval == 24 ]) then
return $?
elif [ $retval == 23 ]; then
Logger "Some files could not be listed in [$replicaPath]. Check for failing symlinks." "ERROR"
Logger "Command output\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$replicaType.error.$SCRIPT_PID)" "NOTICE"
return 0
else
Logger "Cannot create replica file list in [$replicaPath]." "CRITICAL"
return $retval
fi
}
# deleteList(replicaType): Creates a list of files vanished from last run on replica $1 (initiator/target)
function deleteList {
local replicaType="${1}" # replica type: initiator, target
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
local failedDeletionListFromReplica
if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
failedDeletionListFromReplica="${TARGET[$__type]}"
elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
failedDeletionListFromReplica="${INITIATOR[$__type]}"
else
Logger "Bogus replicaType in [${FUNCNAME[0]}]." "CRITICAL"
exit 1
fi
Logger "Creating $replicaType replica deleted file list." "NOTICE"
if [ -f "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__treeAfterFileNoSuffix]}" ]; then
## Same functionnality, comm is much faster than grep but is not available on every platform
if type comm > /dev/null 2>&1 ; then
cmd="comm -23 \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__treeAfterFileNoSuffix]}\" \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__treeCurrentFile]}\" > \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__deletedListFile]}\""
else
## The || : forces the command to have a good result
cmd="(grep -F -x -v -f \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__treeCurrentFile]}\" \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__treeAfterFileNoSuffix]}\" || :) > \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__deletedListFile]}\""
fi
Logger "CMD: $cmd" "DEBUG"
eval "$cmd" 2>> "$LOG_FILE"
retval=$?
# Add delete failed file list to current delete list and then empty it
if [ -f "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$failedDeletionListFromReplica${INITIATOR[$__failedDeletedListFile]}" ]; then
cat "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$failedDeletionListFromReplica${INITIATOR[$__failedDeletedListFile]}" >> "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__deletedListFile]}"
if [ $? == 0 ]; then
rm -f "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$failedDeletionListFromReplica${INITIATOR[$__failedDeletedListFile]}"
else
Logger "Cannot add failed deleted list to current deleted list for replica [$replicaType]." "ERROR"
fi
fi
return $retval
else
touch "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__deletedListFile]}"
return $retval
fi
}
function _getFileCtimeMtimeLocal {
local replicaPath="${1}" # Contains replica path
local replicaType="${2}" # Initiator / Target
local fileList="${3}" # Contains list of files to get time attrs
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
echo -n "" > "$RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID"
while read -r file; do $STAT_CTIME_MTIME_CMD "$replicaPath$file" | sort >> "$RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID"; done < "$fileList"
if [ $? != 0 ]; then
Logger "Getting file attributes failed [$retval] on $replicaType. Stopping execution." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID)" "VERBOSE"
fi
exit 1
fi
}
function _getFileCtimeMtimeRemote {
local replicaPath="${1}" # Contains replica path
local replicaType="${2}"
local fileList="${3}"
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
cmd='cat "'$fileList'" | '$SSH_CMD' "while read -r file; do '$REMOTE_STAT_CTIME_MTIME_CMD' \"'$replicaPath'\$file\"; done | sort" > "'$RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID'"'
Logger "CMD: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
Logger "Getting file attributes failed [$retval] on $replicaType. Stopping execution." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.ctime_mtime.$replicaType.$SCRIPT_PID)" "VERBOSE"
fi
exit 1
fi
}
# rsync does sync with mtime, but file attribute modifications only change ctime.
# Hence, detect newer ctime on the replica that gets updated first with CONFLICT_PREVALANCE and update all newer file attributes on this replica before real update
function syncAttrs {
local initiatorReplica="${1}"
local targetReplica="${2}"
__CheckArguments 2 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local rsyncCmd
local retval
local sourceDir
local destDir
local escSourceDir
local escDestDir
local destReplica
if [ "$LOCAL_OS" == "BUSYBOX" ]; then
Logger "Skipping acl synchronization. Busybox does not have join command." "NOTICE"
return 0
fi
Logger "Getting list of files that need updates." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -i -n -8 $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_PARTIAL_EXCLUDE -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE \"$initiatorReplica\" $REMOTE_USER@$REMOTE_HOST:\"$targetReplica\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -i -n -8 $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_PARTIAL_EXCLUDE --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE \"$initiatorReplica\" \"$targetReplica\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
retval=$?
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Getting list of files that need updates failed [$retval]. Stopping execution." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
exit 1
else
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "VERBOSE"
fi
( grep -Ev "^[^ ]*(c|s|t)[^ ]* " "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" || :) | ( grep -E "^[^ ]*(p|o|g|a)[^ ]* " || :) | sed -e 's/^[^ ]* //' >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID"
if [ $? != 0 ]; then
Logger "Cannot prepare file list for attribute sync." "CRITICAL"
exit 1
fi
fi
Logger "Getting ctimes for pending files on initiator." "NOTICE"
_getFileCtimeMtimeLocal "${INITIATOR[$__replicaDir]}" "${INITIATOR[$__type]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$!"
Logger "Getting ctimes for pending files on target." "NOTICE"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_getFileCtimeMtimeLocal "${TARGET[$__replicaDir]}" "${TARGET[$__type]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$pids;$!"
else
_getFileCtimeMtimeRemote "${TARGET[$__replicaDir]}" "${TARGET[$__type]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 1800 0 ${FUNCNAME[0]} true $KEEP_LOGGING
# If target gets updated first, then sync_attr must update initiators attrs first
# For join, remove leading replica paths
sed -i'.tmp' "s;^${INITIATOR[$__replicaDir]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[$__type]}.$SCRIPT_PID"
sed -i'.tmp' "s;^${TARGET[$__replicaDir]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[$__type]}.$SCRIPT_PID"
if [ "$CONFLICT_PREVALANCE" == "${TARGET[$__type]}" ]; then
sourceDir="${INITIATOR[$__replicaDir]}"
escSourceDir=$(EscapeSpaces "${INITIATOR[$__replicaDir]}")
destDir="${TARGET[$__replicaDir]}"
escDestDir=$(EscapeSpaces "${TARGET[$__replicaDir]}")
destReplica="${TARGET[$__type]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[$__type]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[$__type]}.$SCRIPT_PID" | awk -F';' '{if ($2 > $3) print $1}' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID"
else
sourceDir="${TARGET[$__replicaDir]}"
escSourceDir=$(EscapeSpaces "${TARGET[$__replicaDir]}")
destDir="${INITIATOR[$__replicaDir]}"
escDestDir=$(EscapeSpaces "${INITIATOR[$__replicaDir]}")
destReplica="${INITIATOR[$__type]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[$__type]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[$__type]}.$SCRIPT_PID" | awk -F';' '{if ($2 > $3) print $1}' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID"
fi
if [ $(wc -l < "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID") -eq 0 ]; then
Logger "Updating file attributes on $destReplica not required" "NOTICE"
return 0
fi
Logger "Updating file attributes on $destReplica." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
# No rsync args (hence no -r) because files are selected with --from-file
if [ "$destReplica" == "${INITIATOR[$__type]}" ]; then
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${INITIATOR[$__type]}${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${TARGET[$__type]}${INITIATOR[$__deletedListFile]}\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" $REMOTE_USER@$REMOTE_HOST:\"$escSourceDir\" \"$destDir\" >> $RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID 2>&1 &"
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${INITIATOR[$__type]}${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${TARGET[$__type]}${INITIATOR[$__deletedListFile]}\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$sourceDir\" $REMOTE_USER@$REMOTE_HOST:\"$escDestDir\" >> $RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID 2>&1 &"
fi
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $SYNC_OPTS --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${INITIATOR[$__type]}${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/${TARGET[$__type]}${INITIATOR[$__deletedListFile]}\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$sourceDir\" \"$destDir\" >> $RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
retval=$?
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating file attributes on $destReplica [$retval]. Stopping execution." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID)" "NOTICE"
fi
exit 1
else
if [ -f "$RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$destReplica.$SCRIPT_PID)" "VERBOSE"
fi
Logger "Successfully updated file attributes on $destReplica replica." "NOTICE"
fi
}
# syncUpdate(source replica, destination replica, delete_list_filename)
function syncUpdate {
local sourceReplica="${1}" # Contains replica type of source: initiator, target
local destinationReplica="${2}" # Contains replica type of destination: initiator, target
__CheckArguments 2 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local rsyncCmd
local retval
local sourceDir
local escSourceDir
local destDir
local escDestDir
local backupArgs
Logger "Updating $destinationReplica replica." "NOTICE"
if [ "$sourceReplica" == "${INITIATOR[$__type]}" ]; then
sourceDir="${INITIATOR[$__replicaDir]}"
destDir="${TARGET[$__replicaDir]}"
backupArgs="$TARGET_BACKUP"
escSourceDir=$(EscapeSpaces "${INITIATOR[$__replicaDir]}")
escDestDir=$(EscapeSpaces "${TARGET[$__replicaDir]}")
else
sourceDir="${TARGET[$__replicaDir]}"
destDir="${INITIATOR[$__replicaDir]}"
backupArgs="$INITIATOR_BACKUP"
escSourceDir=$(EscapeSpaces "${TARGET[$__replicaDir]}")
escDestDir=$(EscapeSpaces "${INITIATOR[$__replicaDir]}")
fi
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ "$sourceReplica" == "${INITIATOR[$__type]}" ]; then
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $backupArgs --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$sourceReplica${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$destinationReplica${INITIATOR[$__deletedListFile]}\" \"$sourceDir\" $REMOTE_USER@$REMOTE_HOST:\"$escDestDir\" >> $RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID 2>&1"
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $backupArgs --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$destinationReplica${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$sourceReplica${INITIATOR[$__deletedListFile]}\" $REMOTE_USER@$REMOTE_HOST:\"$escSourceDir\" \"$destDir\" >> $RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID 2>&1"
fi
else
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS $backupArgs --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$sourceReplica${INITIATOR[$__deletedListFile]}\" --exclude-from=\"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$destinationReplica${INITIATOR[$__deletedListFile]}\" \"$sourceDir\" \"$destDir\" >> $RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID 2>&1"
fi
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd"
retval=$?
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating $destinationReplica replica failed. Stopping execution." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID)" "NOTICE"
fi
exit 1
else
if [ -f "$RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.update.$destinationReplica.$SCRIPT_PID)" "VERBOSE"
fi
Logger "Updating $destinationReplica replica succeded." "NOTICE"
return 0
fi
}
function _deleteLocal {
local replicaType="${1}" # Replica type
local replicaDir="${2}" # Full path to replica
local deletionDir="${3}" # deletion dir in format .[workdir]/deleted
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local parentdir
local previousFile=""
local result
local deletionListFromReplica
if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
deletionListFromReplica="${TARGET[$__type]}"
elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
deletionListFromReplica="${INITIATOR[$__type]}"
else
Logger "Bogus replicaType in [${FUNCNAME[0]}]." "CRITICAL"
exit 1
fi
if [ ! -d "$replicaDir$deletionDir" ] && [ $_DRYRUN == false ]; then
$COMMAND_SUDO mkdir -p "$replicaDir$deletionDir"
if [ $? != 0 ]; then
Logger "Cannot create local replica deletion directory in [$replicaDir$deletionDir]." "ERROR"
exit 1
fi
fi
while read -r files; do
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
if [[ "$files" != "$previousFile/"* ]] && [ "$files" != "" ]; then
if [ "$SOFT_DELETE" != "no" ]; then
if [ $_DRYRUN == false ]; then
if [ -e "$replicaDir$deletionDir/$files" ]; then
rm -rf "${replicaDir:?}$deletionDir/$files"
fi
if [ -e "$replicaDir$files" ]; then
# In order to keep full path on soft deletion, create parent directories before move
parentdir="$(dirname "$files")"
if [ "$parentdir" != "." ]; then
mkdir -p "$replicaDir$deletionDir/$parentdir"
Logger "Moving deleted file [$replicaDir$files] to [$replicaDir$deletionDir/$parentdir]." "VERBOSE"
mv -f "$replicaDir$files" "$replicaDir$deletionDir/$parentdir"
else
Logger "Moving deleted file [$replicaDir$files] to [$replicaDir$deletionDir]." "VERBOSE"
mv -f "$replicaDir$files" "$replicaDir$deletionDir"
fi
if [ $? != 0 ]; then
Logger "Cannot move [$replicaDir$files] to deletion directory." "ERROR"
echo "$files" >> "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__failedDeletedListFile]}"
else
echo "$files" >> "$RUN_DIR/$PROGRAM.delete.$replicaType.$SCRIPT_PID"
fi
fi
fi
else
if [ $_DRYRUN == false ]; then
if [ -e "$replicaDir$files" ]; then
rm -rf "$replicaDir$files"
result=$?
Logger "Deleting [$replicaDir$files]." "VERBOSE"
if [ $result != 0 ]; then
Logger "Cannot delete [$replicaDir$files]." "ERROR"
echo "$files" >> "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$replicaType${INITIATOR[$__failedDeletedListFile]}"
else
echo "$files" >> "$RUN_DIR/$PROGRAM.delete.$replicaType.$SCRIPT_PID"
fi
fi
fi
fi
previousFile="$files"
fi
done < "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$deletionListFromReplica${INITIATOR[$__deletedListFile]}"
}
function _deleteRemote {
local replicaType="${1}" # Replica type
local replicaDir="${2}" # Full path to replica
local deletionDir="${3}" # deletion dir in format .[workdir]/deleted
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local escDestDir
local rsyncCmd
local failedDeleteList
local successDeleteList
local deletionListFromReplica
if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
deletionListFromReplica="${TARGET[$__type]}"
elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
deletionListFromReplica="${INITIATOR[$__type]}"
else
Logger "Bogus replicaType in [${FUNCNAME[0]}]." "CRITICAL"
exit 1
fi
failedDeleteList="$(EscapeSpaces ${TARGET[$__replicaDir]}${TARGET[$__stateDir]}/$replicaType${TARGET[$__failedDeletedListFile]})"
successDeleteList="$(EscapeSpaces ${TARGET[$__replicaDir]}${TARGET[$__stateDir]}/$replicaType${TARGET[$__successDeletedListFile]})"
## This is a special coded function. Need to redelcare local functions on remote host, passing all needed variables as escaped arguments to ssh command.
## Anything beetween << ENDSSH and ENDSSH will be executed remotely
# Additionnaly, we need to copy the deletetion list to the remote state folder
escDestDir="$(EscapeSpaces "${TARGET[$__replicaDir]}${TARGET[$__stateDir]}")"
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/$deletionListFromReplica${INITIATOR[$__deletedListFile]}\" $REMOTE_USER@$REMOTE_HOST:\"$escDestDir/\" >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID 2>&1"
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd" 2>> "$LOG_FILE"
if [ $? != 0 ]; then
Logger "Cannot copy the deletion list to remote replica." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID" ]; then
Logger "$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID)" "ERROR"
fi
exit 1
fi
$SSH_CMD ERROR_ALERT=0 sync_on_changes=$sync_on_changes _DEBUG=$_DEBUG _DRYRUN=$_DRYRUN _VERBOSE=$_VERBOSE COMMAND_SUDO=$COMMAND_SUDO FILE_LIST="$(EscapeSpaces "${TARGET[$__replicaDir]}${TARGET[$__stateDir]}/$deletionListFromReplica${INITIATOR[$__deletedListFile]}")" REPLICA_DIR="$(EscapeSpaces "$replicaDir")" SOFT_DELETE=$SOFT_DELETE DELETION_DIR="$(EscapeSpaces "$deletionDir")" FAILED_DELETE_LIST="$failedDeleteList" SUCCESS_DELETE_LIST="$successDeleteList" 'bash -s' << 'ENDSSH' >> "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" 2>&1
## The following lines are executed remotely
function _logger {
local value="${1}" # What to log
echo -e "$value"
}
function Logger {
local value="${1}" # What to log
local level="${2}" # Log level: DEBUG, NOTICE, WARN, ERROR, CRITIAL
local prefix="RTIME: $SECONDS - "
if [ "$level" == "CRITICAL" ]; then
_logger "$prefix\e[41m$value\e[0m"
return
elif [ "$level" == "ERROR" ]; then
_logger "$prefix\e[91m$value\e[0m"
return
elif [ "$level" == "WARN" ]; then
_logger "$prefix\e[93m$value\e[0m"
return
elif [ "$level" == "NOTICE" ]; then
_logger "$prefix$value"
return
elif [ "$level" == "VERBOSE" ]; then
if [ $_VERBOSE == true ]; then
_logger "$prefix$value"
fi
return
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == "yes" ]; then
_logger "$prefix$value"
fi
return
else
_logger "\e[41mLogger function called without proper loglevel [$level].\e[0m"
_logger "$prefix$value"
fi
}
## Empty earlier failed delete list
> "$FAILED_DELETE_LIST"
> "$SUCCESS_DELETE_LIST"
parentdir=
previousFile=""
if [ ! -d "$REPLICA_DIR$DELETION_DIR" ] && [ $_DRYRUN == false ]; then
$COMMAND_SUDO mkdir -p "$REPLICA_DIR$DELETION_DIR"
if [ $? != 0 ]; then
Logger "Cannot create remote replica deletion directory in [$REPLICA_DIR$DELETION_DIR]." "ERROR"
exit 1
fi
fi
while read -r files; do
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
if [[ "$files" != "$previousFile/"* ]] && [ "$files" != "" ]; then
if [ "$SOFT_DELETE" != "no" ]; then
if [ $_DRYRUN == false ]; then
if [ -e "$REPLICA_DIR$DELETION_DIR/$files" ]; then
$COMMAND_SUDO rm -rf "$REPLICA_DIR$DELETION_DIR/$files"
fi
if [ -e "$REPLICA_DIR$files" ]; then
# In order to keep full path on soft deletion, create parent directories before move
parentdir="$(dirname "$files")"
if [ "$parentdir" != "." ]; then
Logger "Moving deleted file [$REPLICA_DIR$files] to [$REPLICA_DIR$DELETION_DIR/$parentdir]." "VERBOSE"
$COMMAND_SUDO mkdir -p "$REPLICA_DIR$DELETION_DIR/$parentdir"
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETION_DIR/$parentdir"
else
Logger "Moving deleted file [$REPLICA_DIR$files] to [$REPLICA_DIR$DELETION_DIR]." "VERBOSE"
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETION_DIR"
fi
if [ $? != 0 ]; then
Logger "Cannot move [$REPLICA_DIR$files] to deletion directory." "ERROR"
# Using $files instead of $REPLICA_DIR$files here so the list is ready for next run
echo "$files" >> "$FAILED_DELETE_LIST"
else
echo "$files" >> "$SUCCESS_DELETE_LIST"
fi
fi
fi
else
if [ $_DRYRUN == false ]; then
if [ -e "$REPLICA_DIR$files" ]; then
Logger "Deleting [$REPLICA_DIR$files]." "VERBOSE"
$COMMAND_SUDO rm -rf "$REPLICA_DIR$files"
if [ $? != 0 ]; then
Logger "Cannot delete [$REPLICA_DIR$files]." "ERROR"
echo "$files" >> "$FAILED_DELETE_LIST"
else
echo "$files" >> "$SUCCESS_DELETE_LIST"
fi
fi
fi
fi
previousFile="$files"
fi
done < "$FILE_LIST"
ENDSSH
if [ -f "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" ]; then
Logger "Remote Deletion:\n$(cat $RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID)" "VERBOSE"
fi
## Copy back the deleted failed file list
rsyncCmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" $REMOTE_USER@$REMOTE_HOST:\"{$failedDeleteList,$successDeleteList}\" \"${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}\" > \"$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID\""
Logger "RSYNC_CMD: $rsyncCmd" "DEBUG"
eval "$rsyncCmd" 2>> "$LOG_FILE"
result=$?
if [ $result != 0 ]; then
Logger "Cannot copy back the failed deletion list to initiator replica." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID" ]; then
Logger "Comand output: $(cat $RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID)" "NOTICE"
fi
exit 1
fi
return 0
}
# delete_Propagation(replica type)
function deletionPropagation {
local replicaType="${1}" # Contains replica type: initiator, target where to delete
__CheckArguments 1 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local replicaDir
local deleteDir
Logger "Propagating deletions to $replicaType replica." "NOTICE"
if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
replicaDir="${INITIATOR[$__replicaDir]}"
deleteDir="${INITIATOR[$__deleteDir]}"
_deleteLocal "${INITIATOR[$__type]}" "$replicaDir" "$deleteDir"
retval=$?
if [ $retval != 0 ]; then
Logger "Deletion on $replicaType replica failed." "CRITICAL"
exit 1
fi
else
Logger "Skipping deletion on replica $replicaType." "NOTICE"
fi
elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
replicaDir="${TARGET[$__replicaDir]}"
deleteDir="${TARGET[$__deleteDir]}"
if [ "$REMOTE_OPERATION" == "yes" ]; then
_deleteRemote "${TARGET[$__type]}" "$replicaDir" "$deleteDir"
else
_deleteLocal "${TARGET[$__type]}" "$replicaDir" "$deleteDir"
fi
retval=$?
if [ $retval == 0 ]; then
if [ -f "$RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID" ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID)" "VERBOSE"
fi
return $retval
else
Logger "Deletion on $replicaType failed." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID)" "CRITICAL"
fi
exit 1
fi
else
Logger "Skipping deletion on replica $replicaType." "NOTICE"
fi
fi
}
###### Sync function in 6 steps
######
###### Step 0a & 0b: Create current file list of replicas
###### Step 1a & 1b: Create deleted file list of replicas
###### Step 3: Update file attributes
###### Step 3a & 3b: Update replicas
###### Step 4a & 4b: Propagate deletions on replicas
###### Step 5a & 5b: Create after run file list of replicas
function Sync {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local resumeCount
local resumeInitiator
local resumeTarget
local initiatorPid
local targetPid
local initiatorFail
local targetFail
Logger "Starting synchronization task." "NOTICE"
if [ "$RESUME_SYNC" != "no" ]; then
if [ -f "${INITIATOR[$__resumeCount]}" ]; then
resumeCount=$(cat "${INITIATOR[$__resumeCount]}")
else
resumeCount=0
fi
if [ $resumeCount -lt $RESUME_TRY ]; then
if [ -f "${INITIATOR[$__initiatorLastActionFile]}" ]; then
resumeInitiator=$(cat "${INITIATOR[$__initiatorLastActionFile]}")
else
resumeInitiator="synced"
fi
if [ -f "${INITIATOR[$__targetLastActionFile]}" ]; then
resumeTarget=$(cat "${INITIATOR[$__targetLastActionFile]}")
else
resumeTarget="synced"
fi
if [ "$resumeInitiator" != "synced" ]; then
Logger "WARNING: Trying to resume aborted execution on $($STAT_CMD "${INITIATOR[$__initiatorLastActionFile]}") at task [$resumeInitiator] for initiator. [$resumeCount] previous tries." "WARN"
echo $(($resumeCount+1)) > "${INITIATOR[$__resumeCount]}"
else
resumeInitiator="none"
fi
if [ "$resumeTarget" != "synced" ]; then
Logger "WARNING: Trying to resume aborted execution on $($STAT_CMD "${INITIATOR[$__targetLastActionFile]}") as task [$resumeTarget] for target. [$resumeCount] previous tries." "WARN"
echo $(($resumeCount+1)) > "${INITIATOR[$__resumeCount]}"
else
resumeTarget="none"
fi
else
Logger "Will not resume aborted execution. Too many resume tries [$resumeCount]." "WARN"
echo "0" > "${INITIATOR[$__resumeCount]}"
resumeInitiator="none"
resumeTarget="none"
fi
else
resumeInitiator="none"
resumeTarget="none"
fi
################################################################################################################################################# Actual sync begins here
## Step 0a & 0b
if [ "$resumeInitiator" == "none" ] || [ "$resumeTarget" == "none" ] || [ "$resumeInitiator" == "${SYNC_ACTION[0]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[0]}" ]; then
if [ "$resumeInitiator" == "none" ] || [ "$resumeInitiator" == "${SYNC_ACTION[0]}" ]; then
treeList "${INITIATOR[$__replicaDir]}" "${INITIATOR[$__type]}" "${INITIATOR[$__treeCurrentFile]}" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "none" ] || [ "$resumeTarget" == "${SYNC_ACTION[0]}" ]; then
treeList "${TARGET[$__replicaDir]}" "${TARGET[$__type]}" "${INITIATOR[$__treeCurrentFile]}" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ "$pid" == "$initiatorPid" ]; then
echo "${SYNC_ACTION[0]}" > "${INITIATOR[$__initiatorLastActionFile]}"
initiatorFail=true
elif [ "$pid" == "$targetPid" ]; then
echo "${SYNC_ACTION[0]}" > "${INITIATOR[$__targetLastActionFile]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__initiatorLastActionFile]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__targetLastActionFile]}"
fi
exit 1
else
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[1]}"
resumeTarget="${SYNC_ACTION[1]}"
fi
fi
## Step 1a & 1b
if [ "$resumeInitiator" == "${SYNC_ACTION[1]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[1]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[1]}" ]; then
deleteList "${INITIATOR[$__type]}" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[1]}" ]; then
deleteList "${TARGET[$__type]}" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ "$pid" == "$initiatorPid" ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__initiatorLastActionFile]}"
initiatorFail=true
elif [ "$pid" == "$targetPid" ]; then
echo "${SYNC_ACTION[1]}" > "${INITIATOR[$__targetLastActionFile]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__initiatorLastActionFile]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__targetLastActionFile]}"
fi
exit 1
else
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[2]}"
resumeTarget="${SYNC_ACTION[2]}"
fi
fi
## Step 2
if [ "$resumeInitiator" == "${SYNC_ACTION[2]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[2]}" ]; then
if [[ "$RSYNC_ATTR_ARGS" == *"-X"* ]] || [[ "$RSYNC_ATTR_ARGS" == *"-A"* ]]; then
syncAttrs "${INITIATOR[$__replicaDir]}" "$TARGET_SYNC_DIR"
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[2]}" > "${INITIATOR[$__targetLastActionFile]}"
exit 1
else
echo "${SYNC_ACTION[3]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[3]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[3]}"
resumeTarget="${SYNC_ACTION[3]}"
fi
else
echo "${SYNC_ACTION[3]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[3]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[3]}"
resumeTarget="${SYNC_ACTION[3]}"
fi
fi
## Step 3a & 3b
if [ "$resumeInitiator" == "${SYNC_ACTION[3]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[3]}" ]; then
if [ "$CONFLICT_PREVALANCE" == "${TARGET[$__type]}" ]; then
if [ "$resumeTarget" == "${SYNC_ACTION[3]}" ]; then
syncUpdate "${TARGET[$__type]}" "${INITIATOR[$__type]}"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeTarget="${SYNC_ACTION[4]}"
fi
fi
if [ "$resumeInitiator" == "${SYNC_ACTION[3]}" ]; then
syncUpdate "${INITIATOR[$__type]}" "${TARGET[$__type]}"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__initiatorLastActionFile]}"
resumeInitiator="${SYNC_ACTION[4]}"
fi
fi
else
if [ "$resumeInitiator" == "${SYNC_ACTION[3]}" ]; then
syncUpdate "${INITIATOR[$__type]}" "${TARGET[$__type]}"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__initiatorLastActionFile]}"
resumeInitiator="${SYNC_ACTION[4]}"
fi
fi
if [ "$resumeTarget" == "${SYNC_ACTION[3]}" ]; then
syncUpdate "${TARGET[$__type]}" "${INITIATOR[$__type]}"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeTarget="${SYNC_ACTION[4]}"
fi
fi
fi
fi
## Step 4a & 4b
if [ "$resumeInitiator" == "${SYNC_ACTION[4]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[4]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[4]}" ]; then
deletionPropagation "${INITIATOR[$__type]}" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[4]}" ]; then
deletionPropagation "${TARGET[$__type]}" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ "$pid" == "$initiatorPid" ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__initiatorLastActionFile]}"
initiatorFail=true
elif [ "$pid" == "$targetPid" ]; then
echo "${SYNC_ACTION[4]}" > "${INITIATOR[$__targetLastActionFile]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__initiatorLastActionFile]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__targetLastActionFile]}"
fi
exit 1
else
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[5]}"
resumeTarget="${SYNC_ACTION[5]}"
fi
fi
## Step 5a & 5b
if [ "$resumeInitiator" == "${SYNC_ACTION[5]}" ] || [ "$resumeTarget" == "${SYNC_ACTION[5]}" ]; then
if [ "$resumeInitiator" == "${SYNC_ACTION[5]}" ]; then
treeList "${INITIATOR[$__replicaDir]}" "${INITIATOR[$__type]}" "${INITIATOR[$__treeAfterFile]}" &
initiatorPid="$!"
fi
if [ "$resumeTarget" == "${SYNC_ACTION[5]}" ]; then
treeList "${TARGET[$__replicaDir]}" "${TARGET[$__type]}" "${INITIATOR[$__treeAfterFile]}" &
targetPid="$!"
fi
WaitForTaskCompletion "$initiatorPid;$targetPid" $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]} false $KEEP_LOGGING
if [ $? != 0 ]; then
IFS=';' read -r -a pidArray <<< "$WAIT_FOR_TASK_COMPLETION"
initiatorFail=false
targetFail=false
for pid in "${pidArray[@]}"; do
pid=${pid%:*}
if [ "$pid" == "$initiatorPid" ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__initiatorLastActionFile]}"
initiatorFail=true
elif [ "$pid" == "$targetPid" ]; then
echo "${SYNC_ACTION[5]}" > "${INITIATOR[$__targetLastActionFile]}"
targetFail=true
fi
done
if [ $initiatorFail == false ]; then
echo "${SYNC_ACTION[6]}" > "${INITIATOR[$__initiatorLastActionFile]}"
fi
if [ $targetFail == false ]; then
echo "${SYNC_ACTION[6]}" > "${INITIATOR[$__targetLastActionFile]}"
fi
exit 1
else
echo "${SYNC_ACTION[6]}" > "${INITIATOR[$__initiatorLastActionFile]}"
echo "${SYNC_ACTION[6]}" > "${INITIATOR[$__targetLastActionFile]}"
resumeInitiator="${SYNC_ACTION[6]}"
resumeTarget="${SYNC_ACTION[6]}"
fi
fi
Logger "Finished synchronization task." "NOTICE"
echo "0" > "${INITIATOR[$__resumeCount]}"
}
function _SoftDeleteLocal {
local replicaType="${1}" # replica type (initiator, target)
local replicaDeletionPath="${2}" # Contains the full path to softdelete / backup directory without ending slash
local changeTime="${3}" # Delete files older than changeTime days
local deletionType="${4}" # Trivial deletion type string
__CheckArguments 4 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local retval
if [ "$LOCAL_OS" == "BUSYBOX" ]; then
Logger "Skipping $deletionType deletion on $replicaType. Busybox find -ctime not supported." "NOTICE"
return 0
fi
if [ -d "$replicaDeletionPath" ]; then
if [ $_DRYRUN == true ]; then
Logger "Listing files older than $changeTime days on $replicaType replica for $deletionType deletion. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $changeTime days on $replicaType replica for $deletionType deletion." "NOTICE"
fi
if [ $_VERBOSE == true ]; then
# Cannot launch log function from xargs, ugly hack
$COMMAND_SUDO $FIND_CMD "$replicaDeletionPath/" -type f -ctime +$changeTime -print0 | xargs -0 -I {} echo "Will delete file {}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "VERBOSE"
$COMMAND_SUDO $FIND_CMD "$replicaDeletionPath/" -type d -empty -ctime +$changeTime -print0 | xargs -0 -I {} echo "Will delete directory {}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "VERBOSE"
fi
if [ $_DRYRUN == false ]; then
$COMMAND_SUDO $FIND_CMD "$replicaDeletionPath/" -type f -ctime +$changeTime -print0 | xargs -0 -I {} $COMMAND_SUDO rm -f "{}" && $COMMAND_SUDO $FIND_CMD "$replicaDeletionPath/" -type d -empty -ctime +$changeTime -print0 | xargs -0 -I {} $COMMAND_SUDO rm -rf "{}" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
else
Dummy
fi
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on $replicaType replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on $replicaType replica." "NOTICE"
fi
elif [ -d "$replicaDeletionPath" ] && ! [ -w "$replicaDeletionPath" ]; then
Logger "The $replicaType replica dir [$replicaDeletionPath] is not writable. Cannot clean old files." "ERROR"
else
Logger "The $replicaType replica dir [$replicaDeletionPath] does not exist. Skipping cleaning of old files." "VERBOSE"
fi
}
function _SoftDeleteRemote {
local replicaType="${1}"
local replicaDeletionPath="${2}" # Contains the full path to softdelete / backup directory without ending slash
local changeTime="${3}" # Delete files older than changeTime days
local deletionType="${4}" # Trivial deletion type string
__CheckArguments 4 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local retval
if [ "$REMOTE_OS" == "BUSYBOX" ]; then
Logger "Skipping $deletionType deletion on $replicaType. Busybox find -ctime not supported." "NOTICE"
return 0
fi
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ $_DRYRUN == true ]; then
Logger "Listing files older than $changeTime days on $replicaType replica for $deletionType deletion. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $changeTime days on $replicaType replica for $deletionType deletion." "NOTICE"
fi
if [ $_VERBOSE == true ]; then
# Cannot launch log function from xargs, ugly hack
cmd=$SSH_CMD' "if [ -d \"'$replicaDeletionPath'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replicaDeletionPath'/\" -type f -ctime +'$changeTime' -print0 | xargs -0 -I {} echo Will delete file {} && '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replicaDeletionPath'/\" -type d -empty -ctime '$changeTime' -print0 | xargs -0 -I {} echo Will delete directory {}; else echo \"The $replicaType replica dir [$replicaDeletionPath] does not exist. Skipping cleaning of old files.\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "VERBOSE"
fi
if [ $_DRYRUN == false ]; then
cmd=$SSH_CMD' "if [ -d \"'$replicaDeletionPath'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replicaDeletionPath'/\" -type f -ctime +'$changeTime' -print0 | xargs -0 -I {} '$COMMAND_SUDO' rm -f \"{}\" && '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replicaDeletionPath'/\" -type d -empty -ctime '$changeTime' -print0 | xargs -0 -I {} '$COMMAND_SUDO' rm -rf \"{}\"; else echo \"The $replicaType replicaDir [$replicaDeletionPath] does not exist. Skipping cleaning of old files.\"; fi" >> "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd"
else
Dummy
fi
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on remote $replicaType replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on $replicaType replica." "NOTICE"
fi
}
function SoftDelete {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local pids
if [ "$CONFLICT_BACKUP" != "no" ] && [ $CONFLICT_BACKUP_DAYS -ne 0 ]; then
Logger "Running conflict backup cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[$__type]}" "${INITIATOR[$__replicaDir]}${INITIATOR[$__backupDir]}" $CONFLICT_BACKUP_DAYS "conflict backup" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[$__type]}" "${TARGET[$__replicaDir]}${TARGET[$__backupDir]}" $CONFLICT_BACKUP_DAYS "conflict backup" &
pids="$pids;$!"
else
_SoftDeleteRemote "${TARGET[$__type]}" "${TARGET[$__replicaDir]}${TARGET[$__backupDir]}" $CONFLICT_BACKUP_DAYS "conflict backup" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
if [ "$SOFT_DELETE" != "no" ] && [ $SOFT_DELETE_DAYS -ne 0 ]; then
Logger "Running soft deletion cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[$__type]}" "${INITIATOR[$__replicaDir]}${INITIATOR[$__deleteDir]}" $SOFT_DELETE_DAYS "softdelete" &
pids="$!"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[$__type]}" "${TARGET[$__replicaDir]}${TARGET[$__deleteDir]}" $SOFT_DELETE_DAYS "softdelete" &
pids="$pids;$!"
else
_SoftDeleteRemote "${TARGET[$__type]}" "${TARGET[$__replicaDir]}${TARGET[$__deleteDir]}" $SOFT_DELETE_DAYS "softdelete" &
pids="$pids;$!"
fi
WaitForTaskCompletion $pids 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
fi
}
function _SummaryFromFile {
local replicaPath="${1}"
local summaryFile="${2}"
local direction="${3}"
__CheckArguments 3 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ -f "$summaryFile" ]; then
while read -r file; do
Logger "$direction $replicaPath$(echo $file | awk '{for (i=2; i<NF; i++) printf $i " "; print $NF}')" "ALWAYS"
done < "$summaryFile"
fi
}
function Summary {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local prefix
prefix="$_LOGGER_PREFIX"
_LOGGER_PREFIX=""
Logger "Attrib updates: INITIATOR << >> TARGET" "ALWAYS"
_SummaryFromFile "${TARGET[$__replicaDir]}" "$RUN_DIR/$PROGRAM.attr-update.target.$SCRIPT_PID" "~ >>"
_SummaryFromFile "${INITIATOR[$__replicaDir]}" "$RUN_DIR/$PROGRAM.attr-update.initiator.$SCRIPT_PID" "~ <<"
Logger "File transfers: INITIATOR << >> TARGET" "ALWAYS"
_SummaryFromFile "${TARGET[$__replicaDir]}" "$RUN_DIR/$PROGRAM.update.target.$SCRIPT_PID" "+ >>"
_SummaryFromFile "${INITIATOR[$__replicaDir]}" "$RUN_DIR/$PROGRAM.update.initiator.$SCRIPT_PID" "+ <<"
#WIP: remote deletion summary does not work
Logger "File deletions: INITIATOR << >> TARGET" "ALWAYS"
if [ "$REMOTE_OPERATION" == "yes" ]; then
_SummaryFromFile "${TARGET[$__replicaDir]}" "${INITIATOR[$__replicaDir]}${INITIATOR[$__stateDir]}/target${TARGET[$__successDeletedListFile]}" "- >>"
else
_SummaryFromFile "${TARGET[$__replicaDir]}" "$RUN_DIR/$PROGRAM.delete.target.$SCRIPT_PID" "- >>"
fi
_SummaryFromFile "${INITIATOR[$__replicaDir]}" "$RUN_DIR/$PROGRAM.delete.initiator.$SCRIPT_PID" "- <<"
_LOGGER_PREFIX="$prefix"
}
function Init {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
# Set error exit code if a piped command fails
set -o pipefail
set -o errtrace
# Do not use exit and quit traps if osync runs in monitor mode
if [ $sync_on_changes == false ]; then
trap TrapStop INT HUP TERM QUIT
trap TrapQuit EXIT
else
trap TrapQuit TERM EXIT HUP QUIT
fi
local uri
local hosturiandpath
local hosturi
## Test if target dir is a ssh uri, and if yes, break it down it its values
if [ "${TARGET_SYNC_DIR:0:6}" == "ssh://" ]; then
REMOTE_OPERATION="yes"
# remove leadng 'ssh://'
uri=${TARGET_SYNC_DIR#ssh://*}
if [[ "$uri" == *"@"* ]]; then
# remove everything after '@'
REMOTE_USER=${uri%@*}
else
REMOTE_USER=$LOCAL_USER
fi
if [ "$SSH_RSA_PRIVATE_KEY" == "" ]; then
if [ ! -f "$SSH_PASSWORD_FILE" ]; then
# Assume that there might exist a standard rsa key
SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
fi
fi
# remove everything before '@'
hosturiandpath=${uri#*@}
# remove everything after first '/'
hosturi=${hosturiandpath%%/*}
if [[ "$hosturi" == *":"* ]]; then
REMOTE_PORT=${hosturi##*:}
else
REMOTE_PORT=22
fi
REMOTE_HOST=${hosturi%%:*}
# remove everything before first '/'
TARGET_SYNC_DIR=${hosturiandpath#*/}
else
REMOTE_OPERATION="no"
fi
if [ "$INITIATOR_SYNC_DIR" == "" ] || [ "$TARGET_SYNC_DIR" == "" ]; then
Logger "Initiator or target path empty." "CRITICAL"
exit 1
fi
## Make sure there is only one trailing slash on path
INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR%/}/"
TARGET_SYNC_DIR="${TARGET_SYNC_DIR%/}/"
# Expand ~ if exists
INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR/#\~/$HOME}"
TARGET_SYNC_DIR="${TARGET_SYNC_DIR/#\~/$HOME}"
SSH_RSA_PRIVATE_KEY="${SSH_RSA_PRIVATE_KEY/#\~/$HOME}"
SSH_PASSWORD_FILE="${SSH_PASSWORD_FILE/#\~/$HOME}"
## Replica format
## Why the f*** does bash not have simple objects ?
# Local variables used for state filenames
local lockFilename="lock"
local stateDir="state"
local backupDir="backup"
local deleteDir="deleted"
local partialDir="_partial"
local lastAction="last-action"
local resumeCount="resume-count"
if [ "$_DRYRUN" == true ]; then
local drySuffix="-dry"
else
local drySuffix=
fi
# The following associative like array definitions are used for bash ver < 4 compat
readonly __type=0
readonly __replicaDir=1
readonly __lockFile=2
readonly __stateDir=3
readonly __backupDir=4
readonly __deleteDir=5
readonly __partialDir=6
readonly __initiatorLastActionFile=7
readonly __targetLastActionFile=8
readonly __resumeCount=9
readonly __treeCurrentFile=10
readonly __treeAfterFile=11
readonly __treeAfterFileNoSuffix=12
readonly __deletedListFile=13
readonly __failedDeletedListFile=14
readonly __successDeletedListFile=15
INITIATOR=()
INITIATOR[$__type]='initiator'
INITIATOR[$__replicaDir]="$INITIATOR_SYNC_DIR"
INITIATOR[$__lockFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$lockFilename"
INITIATOR[$__stateDir]="$OSYNC_DIR/$stateDir"
INITIATOR[$__backupDir]="$OSYNC_DIR/$backupDir"
INITIATOR[$__deleteDir]="$OSYNC_DIR/$deleteDir"
INITIATOR[$__partialDir]="$OSYNC_DIR/$partialDir"
INITIATOR[$__initiatorLastActionFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/initiator-$lastAction-$INSTANCE_ID$drySuffix"
INITIATOR[$__targetLastActionFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/target-$lastAction-$INSTANCE_ID$drySuffix"
INITIATOR[$__resumeCount]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/$resumeCount-$INSTANCE_ID$drySuffix"
INITIATOR[$__treeCurrentFile]="-tree-current-$INSTANCE_ID$drySuffix"
INITIATOR[$__treeAfterFile]="-tree-after-$INSTANCE_ID$drySuffix"
INITIATOR[$__treeAfterFileNoSuffix]="-tree-after-$INSTANCE_ID"
INITIATOR[$__deletedListFile]="-deleted-list-$INSTANCE_ID$drySuffix"
INITIATOR[$__failedDeletedListFile]="-failed-delete-$INSTANCE_ID$drySuffix"
INITIATOR[$__successDeletedListFile]="-success-delete-$INSTANCE_ID$drySuffix"
TARGET=()
TARGET[$__type]='target'
TARGET[$__replicaDir]="$TARGET_SYNC_DIR"
TARGET[$__lockFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$lockFilename"
TARGET[$__stateDir]="$OSYNC_DIR/$stateDir"
TARGET[$__backupDir]="$OSYNC_DIR/$backupDir"
TARGET[$__deleteDir]="$OSYNC_DIR/$deleteDir"
TARGET[$__partialDir]="$OSYNC_DIR/$partialDir" # unused
TARGET[$__initiatorLastActionFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/initiator-$lastAction-$INSTANCE_ID$drySuffix" # unused
TARGET[$__targetLastActionFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/target-$lastAction-$INSTANCE_ID$drySuffix" # unused
TARGET[$__resumeCount]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/$resumeCount-$INSTANCE_ID$drySuffix" # unused
TARGET[$__treeCurrentFile]="-tree-current-$INSTANCE_ID$drySuffix" # unused
TARGET[$__treeAfterFile]="-tree-after-$INSTANCE_ID$drySuffix" # unused
TARGET[$__treeAfterFileNoSuffix]="-tree-after-$INSTANCE_ID" # unused
TARGET[$__deletedListFile]="-deleted-list-$INSTANCE_ID$drySuffix" # unused
TARGET[$__failedDeletedListFile]="-failed-delete-$INSTANCE_ID$drySuffix"
TARGET[$__successDeletedListFile]="-success-delete-$INSTANCE_ID$drySuffix"
PARTIAL_DIR="${INITIATOR[$__partialDir]}"
## Set sync only function arguments for rsync
SYNC_OPTS="-u"
if [ $_VERBOSE == true ] || [ $_SUMMARY == true ]; then
SYNC_OPTS=$SYNC_OPTS" -i"
fi
if [ $STATS == true ]; then
SYNC_OPTS=$SYNC_OPTS" --stats"
fi
## Add Rsync include / exclude patterns
RsyncPatterns
## Conflict options
if [ "$CONFLICT_BACKUP" != "no" ]; then
INITIATOR_BACKUP="--backup --backup-dir=\"${INITIATOR[$__backupDir]}\""
TARGET_BACKUP="--backup --backup-dir=\"${TARGET[$__backupDir]}\""
if [ "$CONFLICT_BACKUP_MULTIPLE" == "yes" ]; then
INITIATOR_BACKUP="$INITIATOR_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
TARGET_BACKUP="$TARGET_BACKUP --suffix .$(date +%Y.%m.%d-%H.%M.%S)"
fi
else
INITIATOR_BACKUP=""
TARGET_BACKUP=""
fi
SYNC_ACTION=(
'replica-tree'
'deleted-list'
'sync_attrs'
'update-replica'
'delete-propagation'
'replica-tree-after'
'synced'
)
}
function Main {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
CreateStateDirs
CheckLocks
Sync
}
function Usage {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
if [ "$IS_STABLE" != "yes" ]; then
echo -e "\e[93mThis is an unstable dev build. Please use with caution.\e[0m"
fi
echo "$PROGRAM $PROGRAM_VERSION $PROGRAM_BUILD"
echo "$AUTHOR"
echo "$CONTACT"
echo ""
echo "You may use osync with a full blown configuration file, or use its default options for quick command line sync."
echo "Usage: osync.sh /path/to/config/file [OPTIONS]"
echo "or osync.sh --initiator=/path/to/initiator/replica --target=/path/to/target/replica [OPTIONS] [QUICKSYNC OPTIONS]"
echo "or osync.sh --initiator=/path/to/initiator/replica --target=ssh://[backupuser]@remotehost.com[:portnumber]//path/to/target/replica [OPTIONS] [QUICKSYNC OPTIONS]"
echo ""
echo "[OPTIONS]"
echo "--dry Will run osync without actually doing anything; just testing"
echo "--no-prefix Will suppress time / date suffix from output"
echo "--silent Will run osync without any output to stdout, used for cron jobs"
echo "--errors-only Output only errors (can be combined with silent or verbose)"
echo "--summary Outputs a list of transferred / deleted files at the end of the run"
echo "--verbose Increases output"
echo "--stats Adds rsync transfer statistics to verbose output"
echo "--partial Allows rsync to keep partial downloads that can be resumed later (experimental)"
echo "--no-maxtime Disables any soft and hard execution time checks"
echo "--force-unlock Will override any existing active or dead locks on initiator and target replica"
echo "--on-changes Will launch a sync task after a short wait period if there is some file activity on initiator replica. You should try daemon mode instead"
echo ""
echo "[QUICKSYNC OPTIONS]"
echo "--initiator=\"\" Master replica path. Will contain state and backup directory (is mandatory)"
echo "--target=\"\" Local or remote target replica path. Can be a ssh uri like ssh://user@host.com:22//path/to/target/replica (is mandatory)"
echo "--rsakey=\"\" Alternative path to rsa private key for ssh connection to target replica"
echo "--password-file=\"\" If no rsa private key is used for ssh authentication, a password file can be used"
echo "--instance-id=\"\" Optional sync task name to identify this synchronization task when using multiple targets"
echo "--skip-deletion=\"\" You may skip deletion propagation on initiator or target. Valid values: initiator target initiator,target"
echo ""
echo "Additionaly, you may set most osync options at runtime. eg:"
echo "SOFT_DELETE_DAYS=365 osync.sh --initiator=/path --target=/other/path"
echo ""
exit 128
}
function SyncOnChanges {
__CheckArguments 0 $# "${FUNCNAME[0]}" "$@" #__WITH_PARANOIA_DEBUG
local cmd
local retval
if ! type inotifywait > /dev/null 2>&1 ; then
Logger "No inotifywait command found. Cannot monitor changes." "CRITICAL"
exit 1
fi
Logger "#### Running osync in file monitor mode." "NOTICE"
while true; do
if [ "$ConfigFile" != "" ]; then
cmd='bash '$osync_cmd' "'$ConfigFile'" '$opts
else
cmd='bash '$osync_cmd' '$opts
fi
Logger "daemon cmd: $cmd" "DEBUG"
eval "$cmd"
retval=$?
if [ $retval != 0 ] && [ $retval != 2 ]; then
Logger "osync child exited with error." "ERROR"
fi
Logger "#### Monitoring now." "NOTICE"
inotifywait --exclude $OSYNC_DIR $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE -qq -r -e create -e modify -e delete -e move -e attrib --timeout "$MAX_WAIT" "$INITIATOR_SYNC_DIR" &
wait $!
retval=$?
if [ $retval == 0 ]; then
Logger "#### Changes detected, waiting $MIN_WAIT seconds before running next sync." "NOTICE"
sleep $MIN_WAIT
elif [ $retval == 2 ]; then
Logger "#### $MAX_WAIT timeout reached, running sync." "NOTICE"
else
Logger "#### inotify error detected, waiting $MIN_WAIT seconds before running next sync." "ERROR"
sleep $MIN_WAIT
fi
done
}
# quicksync mode settings, overriden by config file
STATS=false
PARTIAL=no
if [ "$CONFLICT_PREVALANCE" == "" ]; then
CONFLICT_PREVALANCE=initiator
fi
INITIATOR_LOCK_FILE_EXISTS=false
TARGET_LOCK_FILE_EXISTS=false
FORCE_UNLOCK=false
no_maxtime=false
opts=""
ERROR_ALERT=false
WARN_ALERT=false
# Number of CTRL+C
SOFT_STOP=0
# Number of given replicas in command line
_QUICK_SYNC=0
sync_on_changes=false
_NOLOCKS=false
osync_cmd=$0
_SUMMARY=false
if [ $# -eq 0 ]
then
Usage
fi
first=1
for i in "$@"; do
case $i in
--dry)
_DRYRUN=true
opts=$opts" --dry"
;;
--silent)
_SILENT=true
opts=$opts" --silent"
;;
--verbose)
_VERBOSE=true
opts=$opts" --verbose"
;;
--stats)
STATS=true
opts=$opts" --stats"
;;
--partial)
PARTIAL="yes"
opts=$opts" --partial"
;;
--force-unlock)
FORCE_UNLOCK=true
opts=$opts" --force-unlock"
;;
--no-maxtime)
no_maxtime=true
opts=$opts" --no-maxtime"
;;
--help|-h|--version|-v)
Usage
;;
--initiator=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
INITIATOR_SYNC_DIR=${i##*=}
opts=$opts" --initiator=\"$INITIATOR_SYNC_DIR\""
no_maxtime=true
;;
--target=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
TARGET_SYNC_DIR=${i##*=}
opts=$opts" --target=\"$TARGET_SYNC_DIR\""
no_maxtime=true
;;
--rsakey=*)
SSH_RSA_PRIVATE_KEY=${i##*=}
opts=$opts" --rsakey=\"$SSH_RSA_PRIVATE_KEY\""
;;
--password-file=*)
SSH_PASSWORD_FILE=${i##*=}
opts=$opts" --password-file\"$SSH_PASSWORD_FILE\""
;;
--instance-id=*)
INSTANCE_ID=${i##*=}
opts=$opts" --instance-id=\"$INSTANCE_ID\""
;;
--skip-deletion=*)
opts=$opts" --skip-deletion=\"${i##*=}\""
IFS=',' read -r -a SKIP_DELETION <<< ${i##*=}
;;
--on-changes)
sync_on_changes=true
_NOLOCKS=true
_LOGGER_PREFIX="date"
_LOGGER_STDERR=true
;;
--no-locks)
_NOLOCKS=true
;;
--errors-only)
#TODO: let err_only only output to stderr
#_LOGGER_STDERR=true
_LOGGER_ERR_ONLY=true
;;
--summary)
_SUMMARY=true
;;
--no-prefix)
_LOGGER_PREFIX=""
;;
*)
if [ $first == "0" ]; then
Logger "Unknown option '$i'" "CRITICAL"
Usage
fi
;;
esac
first=0
done
# Remove leading space if there is one
opts="${opts# *}"
## Here we set default options for quicksync tasks when no configuration file is provided.
if [ $_QUICK_SYNC -eq 2 ]; then
if [ "$INSTANCE_ID" == "" ]; then
INSTANCE_ID="quicksync_task"
fi
# Let the possibility to initialize those values directly via command line like SOFT_DELETE_DAYS=60 ./osync.sh
if [ "$MINIMUM_SPACE" == "" ]; then
MINIMUM_SPACE=1024
fi
if [ "$CONFLICT_BACKUP_DAYS" == "" ]; then
CONFLICT_BACKUP_DAYS=30
fi
if [ "$SOFT_DELETE_DAYS" == "" ]; then
SOFT_DELETE_DAYS=30
fi
if [ "$RESUME_TRY" == "" ]; then
RESUME_TRY=1
fi
if [ "$SOFT_MAX_EXEC_TIME" == "" ]; then
SOFT_MAX_EXEC_TIME=0
fi
if [ "$HARD_MAX_EXEC_TIME" == "" ]; then
HARD_MAX_EXEC_TIME=0
fi
if [ "$PRESERVE_ACL" == "" ]; then
PRESERVE_ACL="yes"
fi
if [ "$PRESERVE_XATTR" == "" ]; then
PRESERVE_XATTR="yes"
fi
if [ "$PATH_SEPARATOR_CHAR" == "" ]; then
PATH_SEPARATOR_CHAR=";"
fi
MIN_WAIT=30
else
ConfigFile="${1}"
LoadConfigFile "$ConfigFile"
fi
if [ "$LOGFILE" == "" ]; then
if [ -w /var/log ]; then
LOG_FILE="/var/log/$PROGRAM.$INSTANCE_ID.log"
elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
LOG_FILE="$HOME/$PROGRAM.$INSTANCE_ID.log"
else
LOG_FILE="./$PROGRAM.$INSTANCE_ID.log"
fi
else
LOG_FILE="$LOGFILE"
fi
if [ ! -w "$(dirname $LOG_FILE)" ]; then
echo "Cannot write to log [$(dirname $LOG_FILE)]."
else
Logger "Script begin, logging to [$LOG_FILE]." "DEBUG"
fi
if [ "$IS_STABLE" != "yes" ]; then
Logger "This is an unstable dev build [$PROGRAM_BUILD]. Please use with caution." "WARN"
fi
GetLocalOS
InitLocalOSSettings
PreInit
Init
CheckEnvironment
PostInit
if [ $_QUICK_SYNC -lt 2 ]; then
CheckCurrentConfig
fi
CheckCurrentConfigAll
DATE=$(date)
Logger "-------------------------------------------------------------" "NOTICE"
Logger "$DRY_WARNING$DATE - $PROGRAM $PROGRAM_VERSION script begin." "ALWAYS"
Logger "-------------------------------------------------------------" "NOTICE"
Logger "Sync task [$INSTANCE_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)" "NOTICE"
if [ $sync_on_changes == true ]; then
SyncOnChanges
else
GetRemoteOS
InitRemoteOSSettings
if [ $no_maxtime == true ]; then
SOFT_MAX_EXEC_TIME=0
HARD_MAX_EXEC_TIME=0
fi
CheckReplicaPaths
CheckDiskSpace
RunBeforeHook
Main
if [ $? == 0 ]; then
SoftDelete
fi
if [ $_SUMMARY == true ]; then
Summary
fi
fi
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