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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=1.1-dev
PROGRAM_BUILD=2016040305
IS_STABLE=yes
source "./ofunctions.sh"
## 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 1
fi
}
function TrapQuit {
local exitcode=
if [ $ERROR_ALERT -ne 0 ]; then
UnlockReplicas
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
CleanUp
Logger "$PROGRAM finished with errors." "ERROR"
exitcode=1
elif [ $WARN_ALERT -ne 0 ]; then
UnlockReplicas
if [ "$_DEBUG" != "yes" ]
then
SendAlert
else
Logger "Debug mode, no alert mail will be sent." "NOTICE"
fi
CleanUp
Logger "$PROGRAM finished with warnings." "WARN"
exitcode=240 # Special exit code for daemon mode not stopping on warnings
else
UnlockReplicas
CleanUp
Logger "$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
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
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
# 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_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)
for i in "${yes_no_vars[@]}"; do
test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file.\" \"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 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 [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
#TODO-v2.1: Add runtime variable tests (RSYNC_ARGS etc)
}
###### Osync specific functions (non shared)
function _CreateStateDirsLocal {
local replica_state_dir="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if ! [ -d "$replica_state_dir" ]; then
$COMMAND_SUDO mkdir --parents "$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 --parents \"'$replica_state_dir'\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
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
}
#TODO: also create deleted and backup dirs
function CreateStateDirs {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
_CreateStateDirsLocal "${INITIATOR[1]}${INITIATOR[3]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CreateStateDirsLocal "${TARGET[1]}${TARGET[3]}"
else
_CreateStateDirsRemote "${TARGET[1]}${TARGET[3]}"
fi
}
function _CheckReplicaPathsLocal {
local replica_path="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ ! -d "$replica_path" ]; then
if [ "$CREATE_DIRS" == "yes" ]; then
$COMMAND_SUDO mkdir --parents "$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
if [ ! -w "$replica_path" ]; then
Logger "Local replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
}
function _CheckReplicaPathsRemote {
local replica_path="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if ! [ -d \"'$replica_path'\" ]; then if [ \"'$CREATE_DIRS'\" == \"yes\" ]; then '$COMMAND_SUDO' mkdir --parents \"'$replica_path'\"; fi; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
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
cmd=$SSH_CMD' "if [ ! -w \"'$replica_path'\" ];then exit 1; fi" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
if [ $? != 0 ]; then
Logger "Remote replica path [$replica_path] is not writable." "CRITICAL"
exit 1
fi
}
function CheckReplicaPaths {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
#INITIATOR_SYNC_DIR_CANN=$(realpath "${INITIATOR[1]}") #TODO: investigate realpath & readlink issues on MSYS and busybox here
#TARGET_SYNC_DIR_CANN=$(realpath "${TARGET[1]})
#if [ "$REMOTE_OPERATION" != "yes" ]; then
# if [ "$INITIATOR_SYNC_DIR_CANN" == "$TARGET_SYNC_DIR_CANN" ]; then
# Logger "Master directory [${INITIATOR[1]}] cannot be the same as target directory." "CRITICAL"
# exit 1
# fi
#fi
_CheckReplicaPathsLocal "${INITIATOR[1]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckReplicaPathsLocal "${TARGET[1]}"
else
_CheckReplicaPathsRemote "${TARGET[1]}"
fi
}
function _CheckDiskSpaceLocal {
local replica_path="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local disk_space=
Logger "Checking minimum disk space in [$replica_path]." "NOTICE"
disk_space=$(df -P "$replica_path" | tail -1 | awk '{print $4}')
if [ $disk_space -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($disk_space KB)." "WARN"
fi
}
function _CheckDiskSpaceRemote {
local replica_path="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
Logger "Checking minimum disk space on target [$replica_path]." "NOTICE"
local cmd=
local disk_space=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "'$COMMAND_SUDO' df -P \"'$replica_path'\"" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
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
disk_space=$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID | tail -1 | awk '{print $4}')
if [ $disk_space -lt $MINIMUM_SPACE ]; then
Logger "There is not enough free space on replica [$replica_path] ($disk_space KB)." "WARN"
fi
fi
}
function CheckDiskSpace {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
_CheckDiskSpaceLocal "${INITIATOR[1]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckDiskSpaceLocal "${TARGET[1]}"
else
_CheckDiskSpaceRemote "${TARGET[1]}"
fi
}
function _WriteLockFilesLocal {
local lockfile="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
$COMMAND_SUDO echo "$SCRIPT_PID@$INSTANCE_ID" > "$lockfile"
if [ $? != 0 ]; then
Logger "Could not create lock file [$lockfile]." "CRITICAL"
exit 1
else
Logger "Locked replica on [$lockfile]." "DEBUG"
fi
}
function _WriteLockFilesRemote {
local lockfile="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "echo '$SCRIPT_PID@$INSTANCE_ID' | '$COMMAND_SUDO' tee \"'$lockfile'\"" > /dev/null 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
if [ $? != 0 ]; then
Logger "Could not set lock on remote target replica." "CRITICAL"
exit 1
else
Logger "Locked remote target replica." "DEBUG"
fi
}
function WriteLockFiles {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
_WriteLockFilesLocal "${INITIATOR[2]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_WriteLockFilesLocal "${TARGET[2]}"
else
_WriteLockFilesRemote "${TARGET[2]}"
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#*@}
ps -p$lock_pid > /dev/null 2>&1
if [ $? != 0 ]; then
Logger "There is a dead osync lock in [$lockfile]. Instance [$lock_pid] no longer running. Resuming." "NOTICE"
else
Logger "There is already a local instance of osync running [$lock_pid]. Cannot start." "CRITICAL"
exit 1
fi
fi
}
function _CheckLocksRemote {
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" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
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"
ps -p$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
if [ $_NOLOCKS -eq 1 ]; then
return 0
fi
# Do not bother checking for locks when FORCE_UNLOCK is set
if [ $FORCE_UNLOCK -eq 1 ]; then
WriteLockFiles
if [ $? != 0 ]; then
exit 1
fi
fi
_CheckLocksLocal "${INITIATOR[2]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_CheckLocksLocal "${TARGET[2]}"
else
_CheckLocksRemote "${TARGET[2]}"
fi
WriteLockFiles
}
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" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]}
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
if [ $_NOLOCKS -eq 1 ]; then
return 0
fi
_UnlockReplicasLocal "${INITIATOR[2]}"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_UnlockReplicasLocal "${TARGET[2]}"
else
_UnlockReplicasRemote "${TARGET[2]}"
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 $rsync_cmd 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 tree_list {
local replica_path="${1}" # path to the replica for which a tree needs to be constructed
local replica_type="${2}" # replica type: initiator, target
local tree_filename="${3}" # filename to output tree (will be prefixed with $replica_type)
local escaped_replica_path=
local rsync_cmd=
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
escaped_replica_path=$(EscapeSpaces "$replica_path")
Logger "Creating $replica_type replica file list [$replica_path]." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ] && [ "$replica_type" == "${TARGET[0]}" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $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:\"$escaped_replica_path/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID\" &"
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS -8 --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --list-only \"$replica_path/\" | grep \"^-\|^d\" | awk '{\$1=\$2=\$3=\$4=\"\" ;print}' | awk '{\$1=\$1 ;print}' | (grep -v \"^\.$\" || :) | sort > \"$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID\" &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
## Redirect commands stderr here to get rsync stderr output in logfile with eval "$rsync_cmd" 2>> "$LOG_FILE"
## When log writing fails, $! is empty and WaitForCompletion fails. Removing the 2>> log
eval "$rsync_cmd"
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
## Retval 24 = some files vanished while creating list
if ([ $retval == 0 ] || [ $retval == 24 ]) && [ -f "$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID" ]; then
mv -f "$RUN_DIR/$PROGRAM.$replica_type.$SCRIPT_PID" "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_filename"
return $?
else
Logger "Cannot create replica file list." "CRITICAL"
exit $retval
fi
}
# delete_list(replica, tree-file-after, tree-file-current, deleted-list-file, deleted-failed-list-file): Creates a list of files vanished from last run on replica $1 (initiator/target)
function delete_list {
local replica_type="${1}" # replica type: initiator, target
local tree_file_after="${2}" # tree-file-after, will be prefixed with replica type
local tree_file_current="${3}" # tree-file-current, will be prefixed with replica type
local deleted_list_file="${4}" # file containing deleted file list, will be prefixed with replica type
local deleted_failed_list_file="${5}" # file containing files that could not be deleted on last run, will be prefixed with replica type
__CheckArguments 5 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd=
Logger "Creating $replica_type replica deleted file list." "NOTICE"
if [ -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX" ]; then
## Same functionnality, comm is much faster than grep but is not available on every platform
if type comm > /dev/null 2>&1 ; then
cmd="comm -23 \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_file_current\" > \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file\""
else
## The || : forces the command to have a good result
cmd="(grep -F -x -v -f \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$tree_file_current\" \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$TREE_AFTER_FILENAME_NO_SUFFIX\" || :) > \"${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file\""
fi
Logger "CMD: $cmd" "DEBUG"
eval "$cmd" 2>> "$LOG_FILE"
retval=$?
# Add delete failed file list to current delete list and then empty it
if [ -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file" ]; then
cat "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file" >> "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file"
rm -f "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_failed_list_file"
fi
return $retval
else
touch "${INITIATOR[1]}${INITIATOR[3]}/$replica_type$deleted_list_file"
return $retval
fi
}
function _get_file_ctime_mtime_local {
local replica_path="${1}" # Contains replica path
local replica_type="${2}" # Initiator / Target
local file_list="${3}" # Contains list of files to get time attrs
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
#cat "$file_list" | xargs -I {} stat -c '%n;%Z;%Y' "$replica_path{}" | sort > "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID"
echo -n "" > "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID"
while read file; do $STAT_CTIME_MTIME_CMD "$replica_path$file" | sort > "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID"; done < "$file_list"
}
function _get_file_ctime_mtime_remote {
local replica_path="${1}" # Contains replica path
local replica_type="${2}"
local file_list="${3}"
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd=
cmd='cat "'$file_list'" | '$SSH_CMD' "while read file; do '$REMOTE_STAT_CTIME_MTIME_CMD' \"'$replica_path'\$file\"; done | sort" > "'$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID'"'
Logger "CMD: $cmd" "DEBUG"
eval $cmd
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
if [ $? != 0 ]; then
Logger "Getting file attributes failed [$retval] on $replica_type. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.ctime_mtime.$replica_type.$SCRIPT_PID)" "NOTICE"
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 sync_attrs {
local initiator_replica="${1}"
local target_replica="${2}"
local delete_list_filename="$DELETED_LIST_FILENAME" # Contains deleted list filename, will be prefixed with replica type
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local rsync_cmd=
local retval=
Logger "Getting list of files that need updates." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
rsync_cmd="$(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 \"$initiator_replica\" $REMOTE_USER@$REMOTE_HOST:\"$target_replica\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(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 \"$initiator_replica\" \"$target_replica\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Getting list of files that need updates failed [$retval]. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
exit $retval
else
cat "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | ( grep -Ev "^[^ ]*(c|s|t)[^ ]* " || :) | ( 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"
_get_file_ctime_mtime_local "${INITIATOR[1]}" "${INITIATOR[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID"
Logger "Getting ctimes for pending files on target." "NOTICE"
if [ "$REMOTE_OPERATION" != "yes" ]; then
_get_file_ctime_mtime_local "${TARGET[1]}" "${TARGET[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID"
else
_get_file_ctime_mtime_remote "${TARGET[1]}" "${TARGET[0]}" "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-cleaned.$SCRIPT_PID"
fi
# If target gets updated first, then sync_attr must update initiator's attrs first
# For join, remove leading replica paths
sed -i "s;^${INITIATOR[1]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$SCRIPT_PID"
sed -i "s;^${TARGET[1]};;g" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID"
if [ "$CONFLICT_PREVALANCE" == "${TARGET[0]}" ]; then
local source_dir="${INITIATOR[1]}"
local esc_source_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_dir="${TARGET[1]}"
local esc_dest_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_replica="${TARGET[0]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID" | awk -F';' '{if ($2 > $3) print $1}' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID"
else
local source_dir="${TARGET[1]}"
local esc_source_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_dir="${INITIATOR[1]}"
local esc_dest_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_replica="${INITIATOR[0]}"
join -j 1 -t ';' -o 1.1,1.2,2.2 "$RUN_DIR/$PROGRAM.ctime_mtime.${TARGET[0]}.$SCRIPT_PID" "$RUN_DIR/$PROGRAM.ctime_mtime.${INITIATOR[0]}.$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 $dest_replica not required" "NOTICE"
return 0
fi
Logger "Updating file attributes on $dest_replica." "NOTICE"
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
# No rsync args (hence no -r) because files are selected with --from-file
if [ "$dest_replica" == "${INITIATOR[0]}" ]; then
rsync_cmd="$(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[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_dir\" \"$dest_dir\" > $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(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[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$source_dir\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir\" > $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
fi
else
rsync_cmd="$(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[1]}${INITIATOR[3]}/${INITIATOR[0]}$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/${TARGET[0]}$delete_list_filename\" --files-from=\"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}-ctime_files.$SCRIPT_PID\" \"$source_dir\" \"$dest_dir\" > $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating file attributes on $source [$retval]. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.attr-update.$dest_replica.$SCRIPT_PID)" "NOTICE"
fi
exit $retval
else
Logger "Successfully updated file attributes on $dest_replica replica." "NOTICE"
fi
}
# sync_update(source replica, destination replica, delete_list_filename)
function sync_update {
local source_replica="${1}" # Contains replica type of source: initiator, target
local destination_replica="${2}" # Contains replica type of destination: initiator, target
local delete_list_filename="${3}" # Contains deleted list filename, will be prefixed with replica type
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local rsync_cmd=
local retval=
Logger "Updating $destination_replica replica." "NOTICE"
if [ "$source_replica" == "${INITIATOR[0]}" ]; then
local source_dir="${INITIATOR[1]}"
local esc_source_dir=$(EscapeSpaces "${INITIATOR[1]}")
local dest_dir="${TARGET[1]}"
local esc_dest_dir=$(EscapeSpaces "${TARGET[1]}")
local backup_args="$TARGET_BACKUP"
else
local source_dir="${TARGET[1]}"
local esc_source_dir=$(EscapeSpaces "${TARGET[1]}")
local dest_dir="${INITIATOR[1]}"
local esc_dest_dir=$(EscapeSpaces "${INITIATOR[1]}")
local backup_args="$INITIATOR_BACKUP"
fi
if [ "$REMOTE_OPERATION" == "yes" ]; then
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ "$source_replica" == "${INITIATOR[0]}" ]; then
rsync_cmd="$(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\" $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" \"$source_dir\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir\" > $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1 &"
else
rsync_cmd="$(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\" $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_dir\" \"$dest_dir\" > $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1 &"
fi
else
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $SYNC_OPTS $backup_args --exclude \"$OSYNC_DIR\" $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$source_replica$delete_list_filename\" --exclude-from=\"${INITIATOR[1]}${INITIATOR[3]}/$destination_replica$delete_list_filename\" \"$source_dir\" \"$dest_dir\" > $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID 2>&1 &"
fi
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd"
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $_VERBOSE -eq 1 ] && [ -f "$RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID" ]; then
Logger "List:\n$(cat $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID)" "NOTICE"
fi
if [ $retval != 0 ] && [ $retval != 24 ]; then
Logger "Updating $destination_replica replica failed. Stopping execution." "CRITICAL"
if [ $_VERBOSE -eq 0 ] && [ -f "$RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID" ]; then
Logger "Rsync output:\n$(cat $RUN_DIR/$PROGRAM.update.$destination_replica.$SCRIPT_PID)" "NOTICE"
fi
exit $retval
else
Logger "Updating $destination_replica replica succeded." "NOTICE"
return 0
fi
}
# delete_local(replica dir, delete file list, delete dir, delete failed file)
function _delete_local {
local replica_dir="${1}" # Full path to replica
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deletion_dir="${3}" # deletion dir in format .[workdir]/deleted
local deleted_failed_list_file="${4}" # file containing files that could not be deleted on last run, will be prefixed with replica type
__CheckArguments 4 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local parentdir=
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
local previous_file=""
OLD_IFS=$IFS
IFS=$'\r\n'
for files in $(cat "${INITIATOR[1]}${INITIATOR[3]}/$deleted_list_file")
do
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
if [ "$SOFT_DELETE" != "no" ]; then
if [ ! -d "$replica_dir$deletion_dir" ]; then
mkdir --parents "$replica_dir$deletion_dir"
if [ $? != 0 ]; then
Logger "Cannot create replica deletion directory." "ERROR"
fi
fi
if [ $_VERBOSE -eq 1 ]; then
Logger "Soft deleting $replica_dir$files" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$replica_dir$deletion_dir/$files" ]; then
rm -rf "${replica_dir:?}$deletion_dir/$files"
fi
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
mkdir --parents "$replica_dir$deletion_dir/$parentdir"
mv -f "$replica_dir$files" "$replica_dir$deletion_dir/$parentdir"
else
mv -f "$replica_dir$files" "$replica_dir$deletion_dir"
fi
if [ $? != 0 ]; then
Logger "Cannot move $replica_dir$files to deletion directory." "ERROR"
echo "$files" >> "${INITIATOR[1]}${INITIATOR[3]}/$deleted_failed_list_file"
fi
fi
fi
else
if [ $_VERBOSE -eq 1 ]; then
Logger "Deleting $replica_dir$files" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$replica_dir$files" ]; then
rm -rf "$replica_dir$files"
if [ $? != 0 ]; then
Logger "Cannot delete $replica_dir$files" "ERROR"
echo "$files" >> "${INITIATOR[1]}${INITIATOR[3]}/$deleted_failed_list_file"
fi
fi
fi
fi
previous_file="$files"
fi
done
IFS=$OLD_IFS
}
function _delete_remote {
local replica_dir="${1}" # Full path to replica
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deletion_dir="${3}" # deletion dir in format .[workdir]/deleted
local deleted_failed_list_file="${4}" # file containing files that could not be deleted on last run, will be prefixed with replica type
__CheckArguments 4 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local esc_dest_dir=
local rsync_cmd=
## This is a special coded function. Need to redelcare local functions on remote host, passing all needed variables as escaped arguments to ssh command.
## Anything beetween << ENDSSH and ENDSSH will be executed remotely
# Additionnaly, we need to copy the deletetion list to the remote state folder
esc_dest_dir="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}")"
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" \"${INITIATOR[1]}${INITIATOR[3]}/$2\" $REMOTE_USER@$REMOTE_HOST:\"$esc_dest_dir/\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.precopy.$SCRIPT_PID 2>&1"
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd" 2>> "$LOG_FILE"
if [ $? != 0 ]; then
Logger "Cannot copy the deletion list to remote replica." "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 _SILENT=$_SILENT _DEBUG=$_DEBUG _DRYRUN=$_DRYRUN _VERBOSE=$_VERBOSE COMMAND_SUDO=$COMMAND_SUDO FILE_LIST="$(EscapeSpaces "$TARGET_STATE_DIR/$deleted_list_file")" REPLICA_DIR="$(EscapeSpaces "$replica_dir")" DELETE_DIR="$(EscapeSpaces "$deletion_dir")" FAILED_DELETE_LIST="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}/$deleted_failed_list_file")" '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" >> "$LOG_FILE"
if [ $_SILENT -eq 0 ]; then
echo -e "$value"
fi
}
function Logger {
local value="${1}" # What to log
local level="${2}" # Log level: DEBUG, NOTICE, WARN, ERROR, CRITIAL
local prefix="RTIME: $SECONDS - "
if [ "$level" == "CRITICAL" ]; then
_logger "$prefix\e[41m$value\e[0m"
ERROR_ALERT=1
elif [ "$level" == "ERROR" ]; then
_logger "$prefix\e[91m$value\e[0m"
ERROR_ALERT=1
elif [ "$level" == "WARN" ]; then
_logger "$prefix\e[93m$value\e[0m"
elif [ "$level" == "NOTICE" ]; then
_logger "$prefix$value"
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == "yes" ]; then
_logger "$prefix$value"
fi
else
_logger "\e[41mLogger function called without proper loglevel.\e[0m"
_logger "$prefix$value"
fi
}
## Empty earlier failed delete list
> "$FAILED_DELETE_LIST"
parentdir=
## On every run, check wheter the next item is already deleted because it is included in a directory already deleted
previous_file=""
OLD_IFS=$IFS
IFS=$'\r\n'
for files in $(cat "$FILE_LIST")
do
if [[ "$files" != "$previous_file/"* ]] && [ "$files" != "" ]; then
if [ ! -d "$REPLICA_DIR$DELETE_DIR" ]; then
$COMMAND_SUDO mkdir --parents "$REPLICA_DIR$DELETE_DIR"
if [ $? != 0 ]; then
Logger "Cannot create replica deletion directory." "ERROR"
fi
fi
if [ "$SOFT_DELETE" != "no" ]; then
if [ $_VERBOSE -eq 1 ]; then
Logger "Soft deleting $REPLICA_DIR$files" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$REPLICA_DIR$DELETE_DIR/$files" ]; then
$COMMAND_SUDO rm -rf "$REPLICA_DIR$DELETE_DIR/$files"
fi
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
$COMMAND_SUDO mkdir --parents "$REPLICA_DIR$DELETE_DIR/$parentdir"
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETE_DIR/$parentdir"
else
$COMMAND_SUDO mv -f "$REPLICA_DIR$files" "$REPLICA_DIR$DELETE_DIR"1
fi
if [ $? != 0 ]; then
Logger "Cannot move $REPLICA_DIR$files to deletion directory." "ERROR"
echo "$files" >> "$FAILED_DELETE_LIST"
fi
fi
fi
else
if [ $_VERBOSE -eq 1 ]; then
Logger "Deleting $REPLICA_DIR$files" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
if [ -e "$REPLICA_DIR$files" ]; then
$COMMAND_SUDO rm -rf "$REPLICA_DIR$files"
if [ $? != 0 ]; then
Logger "Cannot delete $REPLICA_DIR$files" "ERROR"
echo "$files" >> "$TARGET_STATE_DIR/$FAILED_DELETE_LIST"
fi
fi
fi
fi
previous_file="$files"
fi
done
IFS=$OLD_IFS
ENDSSH
## Need to add a trivial sleep time to give ssh time to log to local file
sleep 5
## Copy back the deleted failed file list
esc_source_file="$(EscapeSpaces "${TARGET[1]}${TARGET[3]}/$deleted_failed_list_file")"
rsync_cmd="$(type -p $RSYNC_EXECUTABLE) --rsync-path=\"$RSYNC_PATH\" $SYNC_OPTS -e \"$RSYNC_SSH_CMD\" $REMOTE_USER@$REMOTE_HOST:\"$esc_source_file\" \"${INITIATOR[1]}${INITIATOR[3]}\" > \"$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID\""
Logger "RSYNC_CMD: $rsync_cmd" "DEBUG"
eval "$rsync_cmd" 2>> "$LOG_FILE"
if [ $? != 0 ]; then
Logger "Cannot copy back the failed deletion list to initiator replica." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID" ]; then
Logger "Comand output: $(cat $RUN_DIR/$PROGRAM.remote_failed_deletion_list_copy.$SCRIPT_PID)" "NOTICE"
fi
exit 1
fi
exit $?
}
# delete_propagation(replica name, deleted_list_filename, deleted_failed_file_list)
function deletion_propagation {
local replica_type="${1}" # Contains replica type: initiator, target
local deleted_list_file="${2}" # file containing deleted file list, will be prefixed with replica type
local deleted_failed_list_file="${3}" # file containing files that could not be deleted on last run, will be prefixed with replica type
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local replica_dir=
local delete_dir=
Logger "Propagating deletions to $replica_type replica." "NOTICE"
if [ "$replica_type" == "{$INITIATOR[0]}" ]; then
replica_dir="${INITIATOR[1]}"
delete_dir="${INITIATOR[5]}"
_delete_local "$replica_dir" "${TARGET[0]}$deleted_list_file" "$delete_dir" "${TARGET[0]}$deleted_failed_list_file" &
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $retval != 0 ]; then
Logger "Deletion on replica $replica_type failed." "CRITICAL"
exit 1
fi
else
replica_dir="${TARGET[1]}"
delete_dir="${TARGET[5]}"
if [ "$REMOTE_OPERATION" == "yes" ]; then
_delete_remote "$replica_dir" "${INITIATOR[0]}$deleted_list_file" "$delete_dir" "${INITIATOR[0]}$deleted_failed_list_file" &
else
_delete_local "$replica_dir" "${INITIATOR[0]}$deleted_list_file" "$delete_dir" "${INITIATOR[0]}$deleted_failed_list_file" &
fi
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $retval == 0 ]; then
if [ -f "$RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID" ] && [ $_VERBOSE -eq 1 ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM._delete_remote.$SCRIPT_PID)" "DEBUG"
fi
return $retval
else
Logger "Deletion on remote system failed." "CRITICAL"
if [ -f "$RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID" ]; then
Logger "Remote:\n$(cat $RUN_DIR/$PROGRAM.remote_deletion.$SCRIPT_PID)" "CRITICAL"
fi
exit 1
fi
fi
}
###### Sync function in 6 steps (functions above)
######
###### Step 1: Create current tree list for initiator and target replicas (Steps 1M and 1S)
###### Step 2: Create deleted file list for initiator and target replicas (Steps 2M and 2S)
###### Step 3a: Update initiator and target file attributes only
###### Step 3b: Update initiator and target replicas (Steps 3M and 3S, order depending on conflict prevalence)
###### Step 4: Deleted file propagation to initiator and target replicas (Steps 4M and 4S)
###### Step 5: Create after run tree list for initiator and target replicas (Steps 5M and 5S)
function Sync {
local resume_count=
local resume_sync=
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
Logger "Starting synchronization task." "NOTICE"
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ -f "${INITIATOR[7]}" ] && [ "$RESUME_SYNC" != "no" ]; then
resume_sync=$(cat "${INITIATOR[7]}")
if [ -f "${INITIATOR[8]}" ]; then
resume_count=$(cat "${INITIATOR[8]}")
else
resume_count=0
fi
if [ $resume_count -lt $RESUME_TRY ]; then
if [ "$resume_sync" != "sync.success" ]; then
Logger "WARNING: Trying to resume aborted osync execution on $($STAT_CMD "${INITIATOR[7]}") at task [$resume_sync]. [$resume_count] previous tries." "WARN"
echo $(($resume_count+1)) > "${INITIATOR[8]}"
else
resume_sync=none
fi
else
Logger "Will not resume aborted osync execution. Too many resume tries [$resume_count]." "WARN"
echo "noresume" > "${INITIATOR[7]}"
echo "0" > "${INITIATOR[8]}"
resume_sync=none
fi
else
resume_sync=none
fi
################################################################################################################################################# Actual sync begins here
## This replaces the case statement because ;& operator is not supported in bash 3.2... Code is more messy than case :(
if [ "$resume_sync" == "none" ] || [ "$resume_sync" == "noresume" ] || [ "$resume_sync" == "${SYNC_ACTION[0]}.fail" ]; then
#initiator_tree_current
tree_list "${INITIATOR[1]}" "${INITIATOR[0]}" "$TREE_CURRENT_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[0]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[0]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[0]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[1]}.fail" ]; then
#target_tree_current
tree_list "${TARGET[1]}" "${TARGET[0]}" "$TREE_CURRENT_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[1]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[1]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[1]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[2]}.fail" ]; then
delete_list "${INITIATOR[0]}" "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[2]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[2]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[2]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.fail" ]; then
delete_list "${TARGET[0]}" "$TREE_AFTER_FILENAME" "$TREE_CURRENT_FILENAME" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[3]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[3]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[3]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.fail" ]; then
sync_attrs "${INITIATOR[1]}" "$TARGET_SYNC_DIR"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[4]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[4]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.fail" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.success" ]; then
if [ "$CONFLICT_PREVALANCE" == "${TARGET[0]}" ]; then
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ]; then
sync_update "${TARGET[0]}" "${INITIATOR[0]}" "$DELETED_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[5]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[5]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.fail" ]; then
sync_update "${INITIATOR[0]}" "${TARGET[0]}" "$DELETED_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[6]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[6]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
else
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[4]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.fail" ]; then
sync_update "${INITIATOR[0]}" "${TARGET[0]}" "$DELETED_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[6]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[6]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.fail" ]; then
sync_update "${TARGET[0]}" "${INITIATOR[0]}" "$DELETED_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[5]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[5]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
fi
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[5]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[6]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[7]}.fail" ]; then
deletion_propagation "${TARGET[0]}" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[7]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[7]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[7]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[8]}.fail" ]; then
deletion_propagation "${INITIATOR[0]}" "$DELETED_LIST_FILENAME" "$FAILED_DELETE_LIST_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[8]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[8]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[8]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[9]}.fail" ]; then
#initiator_tree_after
tree_list "${INITIATOR[1]}" "${INITIATOR[0]}" "$TREE_AFTER_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[9]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[9]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
if [ "$resume_sync" == "resumed" ] || [ "$resume_sync" == "${SYNC_ACTION[9]}.success" ] || [ "$resume_sync" == "${SYNC_ACTION[10]}.fail" ]; then
#target_tree_after
tree_list "${TARGET[1]}" "${TARGET[0]}" "$TREE_AFTER_FILENAME"
if [ $? == 0 ]; then
echo "${SYNC_ACTION[10]}.success" > "${INITIATOR[7]}"
else
echo "${SYNC_ACTION[10]}.fail" > "${INITIATOR[7]}"
fi
resume_sync="resumed"
fi
Logger "Finished synchronization task." "NOTICE"
echo "${SYNC_ACTION[11]}" > "${INITIATOR[7]}"
echo "0" > "${INITIATOR[8]}"
}
function _SoftDeleteLocal {
local replica_type="${1}" # replica type (initiator, target)
local replica_deletion_path="${2}" # Contains the full path to softdelete / backup directory without ending slash
local change_time="${3}"
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local retval=
if [ -d "$replica_deletion_path" ]; then
if [ $_DRYRUN -eq 1 ]; then
Logger "Listing files older than $change_time days on $replica_type replica. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $change_time days on $replica_type replica." "NOTICE"
fi
if [ $_VERBOSE -eq 1 ]; then
# Cannot launch log function from xargs, ugly hack
$FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete file {}" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
$FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} echo "Will delete directory {}" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
$FIND_CMD "$replica_deletion_path/" -type f -ctime +$change_time -print0 | xargs -0 -I {} rm -f "{}" && $FIND_CMD "$replica_deletion_path/" -type d -empty -ctime +$change_time -print0 | xargs -0 -I {} rm -rf "{}" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1 &
else
Dummy &
fi
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on $replica_type replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on $replica_type replica." "NOTICE"
fi
elif [ -d "$replica_deletion_path" ] && ! [ -w "$replica_deletion_path" ]; then
Logger "Warning: $replica_type replica dir [$replica_deletion_path] is not writable. Cannot clean old files." "ERROR"
fi
}
function _SoftDeleteRemote {
local replica_type="${1}"
local replica_deletion_path="${2}" # Contains the full path to softdelete / backup directory without ending slash
local change_time="${3}"
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local retval=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
if [ $_DRYRUN -eq 1 ]; then
Logger "Listing files older than $change_time days on target replica. Does not remove anything." "NOTICE"
else
Logger "Removing files older than $change_time days on target replica." "NOTICE"
fi
if [ $_VERBOSE -eq 1 ]; then
# Cannot launch log function from xargs, ugly hack
cmd=$SSH_CMD' "if [ -d \"'$replica_deletion_path'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type f -ctime +'$change_time' -print0 | xargs -0 -I {} echo Will delete file {} && '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type d -empty -ctime '$change_time' -print0 | xargs -0 -I {} echo Will delete directory {}; else echo \"No remote backup/deletion directory.\"; exit 1; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
fi
if [ $_DRYRUN -ne 1 ]; then
cmd=$SSH_CMD' "if [ -d \"'$replica_deletion_path'\" ]; then '$COMMAND_SUDO' '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type f -ctime +'$change_time' -print0 | xargs -0 -I {} rm -f \"{}\" && '$REMOTE_FIND_CMD' \"'$replica_deletion_path'/\" -type d -empty -ctime '$change_time' -print0 | xargs -0 -I {} rm -rf \"{}\"; else echo \"No remote backup/deletion directory.\"; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
else
Dummy &
fi
WaitForCompletion $! $SOFT_MAX_EXEC_TIME $HARD_MAX_EXEC_TIME ${FUNCNAME[0]}
retval=$?
if [ $retval -ne 0 ]; then
Logger "Error while executing cleanup on remote target replica." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "NOTICE"
else
Logger "Cleanup complete on target replica." "NOTICE"
fi
}
function SoftDelete {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$CONFLICT_BACKUP" != "no" ] && [ $CONFLICT_BACKUP_DAYS -ne 0 ]; then
Logger "Running conflict backup cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[0]}" "${INITIATOR[1]}${INITIATOR[4]}" $CONFLICT_BACKUP_DAYS
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[0]}" "${TARGET[1]}${TARGET[4]}" $CONFLICT_BACKUP_DAYS
else
_SoftDeleteRemote "${TARGET[0]}" "${TARGET[1]}${TARGET[4]}" $CONFLICT_BACKUP_DAYS
fi
fi
if [ "$SOFT_DELETE" != "no" ] && [ $SOFT_DELETE_DAYS -ne 0 ]; then
Logger "Running soft deletion cleanup." "NOTICE"
_SoftDeleteLocal "${INITIATOR[0]}" "${INITIATOR[1]}${INITIATOR[5]}" $SOFT_DELETE_DAYS
if [ "$REMOTE_OPERATION" != "yes" ]; then
_SoftDeleteLocal "${TARGET[0]}" "${TARGET[1]}${TARGET[5]}" $SOFT_DELETE_DAYS
else
_SoftDeleteRemote "${TARGET[0]}" "${TARGET[1]}${TARGET[5]}" $SOFT_DELETE_DAYS
fi
fi
}
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 [ $sync_on_changes -eq 0 ]; then
trap TrapStop SIGINT SIGHUP SIGTERM SIGQUIT
trap TrapQuit EXIT
else
trap TrapQuit SIGTERM EXIT SIGHUP SIGQUIT
fi
local uri
local hosturiandpath
local hosturi
## Test if target dir is a ssh uri, and if yes, break it down it its values
if [ "${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 [ "$SSH_RSA_PRIVATE_KEY" == "" ]; then
SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
fi
# remove everything before '@'
hosturiandpath=${uri#*@}
# remove everything after first '/'
hosturi=${hosturiandpath%%/*}
if [[ "$hosturi" == *":"* ]]; then
REMOTE_PORT=${hosturi##*:}
else
REMOTE_PORT=22
fi
REMOTE_HOST=${hosturi%%:*}
# remove everything before first '/'
TARGET_SYNC_DIR=${hosturiandpath#*/}
fi
## Make sure there is only one trailing slash on path
INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR%/}/"
TARGET_SYNC_DIR="${TARGET_SYNC_DIR%/}/"
## Replica format
## Why the f*** does bash not have simple objects ?
#${REPLICA[0]} contains replica type (initiator / target)
#${REPLICA[1]} contains full replica path (can be absolute or relative) with ending slash
#${REPLICA[2]} contains full lock file path
#${REPLICA[3]} contains state dir path, relative to replica path
#${REPLICA[4]} contains backup dir path, relative to replica path
#${REPLICA[5]} contains deletion dir path, relative to replica path
#${REPLICA[6]} contains partial dir path, relative to replica path
#${REPLICA[7]} contains full last action file path
#${REPLICA[8]} contains full resume count file path
# Local variables used for state filenames
local lock_filename="lock"
local state_dir="state"
local backup_dir="backup"
local delete_dir="deleted"
local partial_dir="_partial"
local last_action="last-action"
local resume_count="resume-count"
if [ "$_DRYRUN" -eq 1 ]; then
local dry_suffix="-dry"
else
local dry_suffix=
fi
#TODO: integrate this into ${REPLICA[x]}
TREE_CURRENT_FILENAME="-tree-current-$INSTANCE_ID$dry_suffix"
TREE_AFTER_FILENAME="-tree-after-$INSTANCE_ID$dry_suffix"
TREE_AFTER_FILENAME_NO_SUFFIX="-tree-after-$INSTANCE_ID"
DELETED_LIST_FILENAME="-deleted-list-$INSTANCE_ID$dry_suffix"
FAILED_DELETE_LIST_FILENAME="-failed-delete-$INSTANCE_ID$dry_suffix"
INITIATOR=(
'initiator'
"$INITIATOR_SYNC_DIR"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$lock_filename"
"$OSYNC_DIR/$state_dir"
"$OSYNC_DIR/$backup_dir"
"$OSYNC_DIR/$delete_dir"
"$OSYNC_DIR/$partial_dir"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$state_dir/$last_action-$INSTANCE_ID$dry_suffix"
"$INITIATOR_SYNC_DIR$OSYNC_DIR/$state_dir/$resume_count-$INSTANCE_ID$dry_suffix"
)
TARGET=(
'target'
"$TARGET_SYNC_DIR"
"$TARGET_SYNC_DIR$OSYNC_DIR/$lock_filename"
"$OSYNC_DIR/$state_dir"
"$OSYNC_DIR/$backup_dir"
"$OSYNC_DIR/$delete_dir"
"$OSYNC_DIR/$partial_dir"
"$TARGET_SYNC_DIR$OSYNC_DIR/$state_dir/$last_action-$INSTANCE_ID$dry_suffix"
"$TARGET_SYNC_DIR$OSYNC_DIR/$state_dir/$resume_count-$INSTANCE_ID$dry_suffix"
)
PARTIAL_DIR=$OSYNC_DIR"_partial"
## Set sync only function arguments for rsync
SYNC_OPTS="-u"
if [ $_VERBOSE -eq 1 ]; then
SYNC_OPTS=$SYNC_OPTS" -i"
fi
if [ $STATS -eq 1 ]; then
SYNC_OPTS=$SYNC_OPTS" --stats"
fi
## Add Rsync include / exclude patterns
if [ $_QUICK_SYNC -lt 2 ]; then
RsyncPatterns
fi
## Conflict options
if [ "$CONFLICT_BACKUP" != "no" ]; then
INITIATOR_BACKUP="--backup --backup-dir=\"${INITIATOR[1]}${INITIATOR[4]}\""
TARGET_BACKUP="--backup --backup-dir=\"${TARGET[1]}${TARGET[4]}\""
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 function actions (0-10)
SYNC_ACTION=(
'initiator-replica-tree'
'target-replica-tree'
'initiator-deleted-list'
'target-deleted-list'
'sync-attrs'
'update-initiator-replica'
'update-target-replica'
'delete-propagation-target'
'delete-propagation-initiator'
'initiator-replica-tree-after'
'target-replica-tree-after'
'sync.success'
)
}
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 "--silent Will run osync without any output to stdout, used for cron jobs"
echo "--verbose Increases output"
echo "--stats Adds rsync transfer statistics to verbose output"
echo "--partial Allows rsync to keep partial downloads that can be resumed later (experimental)"
echo "--no-maxtime Disables any soft and hard execution time checks"
echo "--force-unlock Will override any existing active or dead locks on initiator and target replica"
echo "--on-changes Will launch a sync task after a short wait period if there is some file activity on initiator replica. You should try daemon mode instead"
echo ""
echo "[QUICKSYNC OPTIONS]"
echo "--initiator=\"\" Master replica path. Will contain state and backup directory (is mandatory)"
echo "--target=\"\" Local or remote target replica path. Can be a ssh uri like ssh://user@host.com:22//path/to/target/replica (is mandatory)"
echo "--rsakey=\"\" Alternative path to rsa private key for ssh connection to target replica"
echo "--instance-id=\"\" Optional sync task name to identify this synchronization task when using multiple targets"
echo ""
echo "Additionaly, you may set most osync options at runtime. eg:"
echo "SOFT_DELETE_DAYS=365 osync.sh --initiator=/path --target=/other/path"
echo ""
exit 128
}
function SyncOnChanges {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__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 != 240 ]; then
Logger "osync child exited with error." "CRITICAL"
exit $retval
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" "$INITIATOR_SYNC_DIR" &
#OSYNC_SUB_PID=$! Not used anymore with killchilds func
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 $MIN_WAIT
fi
done
}
# quicksync mode settings, overriden by config file
STATS=0
PARTIAL=0
if [ "$CONFLICT_PREVALANCE" == "" ]; then
CONFLICT_PREVALANCE=initiator
fi
FORCE_UNLOCK=0
no_maxtime=0
opts=""
ERROR_ALERT=0
SOFT_STOP=0
_QUICK_SYNC=0
sync_on_changes=0
_NOLOCKS=0
osync_cmd=$0
if [ $# -eq 0 ]
then
Usage
fi
first=1
for i in "$@"
do
case $i in
--dry)
_DRYRUN=1
opts=$opts" --dry"
;;
--silent)
_SILENT=1
opts=$opts" --silent"
;;
--verbose)
_VERBOSE=1
opts=$opts" --verbose"
;;
--stats)
STATS=1
opts=$opts" --stats"
;;
--partial)
PARTIAL="yes"
opts=$opts" --partial"
;;
--force-unlock)
FORCE_UNLOCK=1
opts=$opts" --force-unlock"
;;
--no-maxtime)
no_maxtime=1
opts=$opts" --no-maxtime"
;;
--help|-h|--version|-v)
Usage
;;
--initiator=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
no_maxtime=1
INITIATOR_SYNC_DIR=${i##*=}
opts=$opts" --initiator=\"$INITIATOR_SYNC_DIR\""
;;
--target=*)
_QUICK_SYNC=$(($_QUICK_SYNC + 1))
TARGET_SYNC_DIR=${i##*=}
opts=$opts" --target=\"$TARGET_SYNC_DIR\""
no_maxtime=1
;;
--rsakey=*)
SSH_RSA_PRIVATE_KEY=${i##*=}
opts=$opts" --rsakey=\"$SSH_RSA_PRIVATE_KEY\""
;;
--instance-id=*)
INSTANCE_ID=${i##*=}
opts=$opts" --instance-id=\"$INSTANCE_ID\""
;;
--on-changes)
sync_on_changes=1
_NOLOCKS=1
;;
--no-locks)
_NOLOCKS=1
;;
*)
if [ $first == "0" ]; then
Logger "Unknown option '$i'" "CRITICAL"
Usage
fi
;;
esac
first=0
done
# Remove leading space if there is one
opts="${opts# *}"
## 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
MIN_WAIT=30
REMOTE_OPERATION=no
else
ConfigFile="${1}"
LoadConfigFile "$ConfigFile"
fi
if [ "$LOGFILE" == "" ]; then
if [ -w /var/log ]; then
LOG_FILE=/var/log/$PROGRAM.$INSTANCE_ID.log
else
LOG_FILE=./$PROGRAM.$INSTANCE_ID.log
fi
else
LOG_FILE="$LOGFILE"
fi
if [ "$IS_STABLE" != "yes" ]; then
Logger "This is an unstable dev build. Please use with caution." "WARN"
fi
GetLocalOS
InitLocalOSSettings
CheckEnvironment
PreInit
Init
PostInit
if [ $_QUICK_SYNC -lt 2 ]; then
CheckCurrentConfig
fi
GetRemoteOS
InitRemoteOSSettings
if [ $sync_on_changes -eq 1 ]; then
SyncOnChanges
else
DATE=$(date)
Logger "-------------------------------------------------------------" "NOTICE"
Logger "$DRY_WARNING $DATE - $PROGRAM $PROGRAM_VERSION script begin." "NOTICE"
Logger "-------------------------------------------------------------" "NOTICE"
Logger "Sync task [$INSTANCE_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)" "NOTICE"
if [ $no_maxtime -eq 1 ]; then
SOFT_MAX_EXEC_TIME=0
HARD_MAX_EXEC_TIME=0
fi
CheckReplicaPaths
CheckDiskSpace
RunBeforeHook
Main
if [ $? == 0 ]; then
SoftDelete
fi
RunAfterHook
fi
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