mirror of https://github.com/deajan/osync
[WIP] osync-target-helper mode
deajan
6 years ago
parent
c80bec2fe2
commit
07775d7390
File diff suppressed because it is too large
Load Diff
@ -1,455 +0,0 @@
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#!/usr/bin/env bash
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PROGRAM="osync-target-helper" # Rsync based two way sync engine with fault tolerance
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AUTHOR="(C) 2013-2017 by Orsiris de Jong"
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CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
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PROGRAM_VERSION=1.2.2-dev
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PROGRAM_BUILD=2017061901
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IS_STABLE=no
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include #### OFUNCTIONS FULL SUBSET ####
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# If using "include" statements, make sure the script does not get executed unless it's loaded by bootstrap
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include #### _OFUNCTIONS_BOOTSTRAP SUBSET ####
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[ "$_OFUNCTIONS_BOOTSTRAP" != true ] && echo "Please use bootstrap.sh to load this dev version of $(basename $0)" && exit 1
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_LOGGER_PREFIX="time"
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## Working directory. This directory exists in any replica and contains state files, backups, soft deleted files etc
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OSYNC_DIR=".osync_workdir"
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function TrapQuit {
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local exitcode
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# Get ERROR / WARN alert flags from subprocesses that call Logger
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if [ -f "$RUN_DIR/$PROGRAM.Logger.warn.$SCRIPT_PID.$TSTAMP" ]; then
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WARN_ALERT=true
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fi
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if [ -f "$RUN_DIR/$PROGRAM.Logger.error.$SCRIPT_PID.$TSTAMP" ]; then
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ERROR_ALERT=true
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fi
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if [ $ERROR_ALERT == true ]; then
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Logger "$PROGRAM finished with errors." "ERROR"
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if [ "$_DEBUG" != "yes" ]
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then
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SendAlert
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else
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Logger "Debug mode, no alert mail will be sent." "NOTICE"
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fi
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exitcode=1
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elif [ $WARN_ALERT == true ]; then
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Logger "$PROGRAM finished with warnings." "WARN"
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if [ "$_DEBUG" != "yes" ]
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then
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SendAlert
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else
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Logger "Debug mode, no alert mail will be sent." "NOTICE"
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fi
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exitcode=2 # Warning exit code must not force daemon mode to quit
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else
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Logger "$PROGRAM finished." "ALWAYS"
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exitcode=0
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fi
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CleanUp
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KillChilds $SCRIPT_PID > /dev/null 2>&1
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exit $exitcode
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}
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function CheckEnvironment {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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if ! type ssh > /dev/null 2>&1 ; then
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Logger "ssh not present. Cannot start sync." "CRITICAL"
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exit 1
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fi
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if [ "$SSH_PASSWORD_FILE" != "" ] && ! type sshpass > /dev/null 2>&1 ; then
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Logger "sshpass not present. Cannot use password authentication." "CRITICAL"
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exit 1
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fi
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}
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# Only gets checked in config file mode where all values should be present
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function CheckCurrentConfig {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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# Check all variables that should contain "yes" or "no"
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declare -a yes_no_vars=(SUDO_EXEC SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING)
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for i in "${yes_no_vars[@]}"; do
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test="if [ \"\$$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"
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eval "$test"
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done
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# Check all variables that should contain a numerical value >= 0
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declare -a num_vars=(MIN_WAIT MAX_WAIT)
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for i in "${num_vars[@]}"; do
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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"
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eval "$test"
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done
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}
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# Gets checked in quicksync and config file mode
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function CheckCurrentConfigAll {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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local tmp
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if [ "$INSTANCE_ID" == "" ]; then
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Logger "No INSTANCE_ID defined in config file." "CRITICAL"
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exit 1
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fi
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if [ "$INITIATOR_SYNC_DIR" == "" ]; then
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Logger "No INITIATOR_SYNC_DIR set in config file." "CRITICAL"
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exit 1
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fi
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if [ "$TARGET_SYNC_DIR" == "" ]; then
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Logger "Not TARGET_SYNC_DIR set in config file." "CRITICAL"
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exit 1
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fi
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if ([ ! -f "$SSH_RSA_PRIVATE_KEY" ] && [ ! -f "$SSH_PASSWORD_FILE" ]); then
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Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY] nor password file [$SSH_PASSWORD_FILE]. No authentication method provided." "CRITICAL"
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exit 1
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fi
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}
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function TriggerInitiatorUpdate {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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$SSH_CMD env _REMOTE_TOKEN="$_REMOTE_TOKEN" \
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env _DEBUG="'$_DEBUG'" env _PARANOIA_DEBUG="'$_PARANOIA_DEBUG'" env _LOGGER_SILENT="'$_LOGGER_SILENT'" env _LOGGER_VERBOSE="'$_LOGGER_VERBOSE'" env _LOGGER_PREFIX="'$_LOGGER_PREFIX'" env _LOGGER_ERR_ONLY="'$_LOGGER_ERR_ONLY'" \
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env PROGRAM="'$PROGRAM'" env SCRIPT_PID="'$SCRIPT_PID'" TSTAMP="'$TSTAMP'" env INSTANCE_ID="'$INSTANCE_ID'" \
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env PUSH_FILE="'$(EscapeSpaces "${INITIATOR[$__updateTriggerFIle]}")'" \
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env LC_ALL=C $COMMAND_SUDO' bash -s' << 'ENDSSH' >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP" 2>&1
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include #### DEBUG SUBSET ####
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include #### TrapError SUBSET ####
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include #### RemoteLogger SUBSET ####
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echo "$INSTANCE_ID $(date '+%Y%m%dT%H%M%S.%N')" >> "$PUSH_FILE"
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ENDSSH
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if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP" ] || [ $? != 0 ]; then
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(
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_LOGGER_PREFIX="RR"
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Logger "$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP)" "ERROR"
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)
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return 1
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fi
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return 0
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}
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function Init {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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# Set error exit code if a piped command fails
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set -o pipefail
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set -o errtrace
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trap TrapQuit TERM EXIT HUP QUIT
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local uri
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local hosturiandpath
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local hosturi
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## Test if target dir is a ssh uri, and if yes, break it down it its values
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if [ "${INITIATOR_SYNC_DIR:0:6}" == "ssh://" ]; then
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REMOTE_OPERATION="yes"
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# remove leadng 'ssh://'
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uri=${INITIATOR_SYNC_DIR#ssh://*}
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if [[ "$uri" == *"@"* ]]; then
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# remove everything after '@'
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REMOTE_USER=${uri%@*}
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else
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REMOTE_USER=$LOCAL_USER
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fi
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if [ "$SSH_RSA_PRIVATE_KEY" == "" ]; then
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if [ ! -f "$SSH_PASSWORD_FILE" ]; then
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# Assume that there might exist a standard rsa key
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SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
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fi
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fi
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# remove everything before '@'
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hosturiandpath=${uri#*@}
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# remove everything after first '/'
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hosturi=${hosturiandpath%%/*}
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if [[ "$hosturi" == *":"* ]]; then
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REMOTE_PORT=${hosturi##*:}
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else
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REMOTE_PORT=22
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fi
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REMOTE_HOST=${hosturi%%:*}
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# remove everything before first '/'
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TARGET_SYNC_DIR=${hosturiandpath#*/}
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else
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Logger "No valid remote initiator URI found in [$INITIATOR_SYNC_DIR]." "CRITICAL"
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exit 1
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fi
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if [ "$INITIATOR_SYNC_DIR" == "" ] || [ "$TARGET_SYNC_DIR" == "" ]; then
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Logger "Initiator or target path empty." "CRITICAL"
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exit 1
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fi
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## Make sure there is only one trailing slash on path
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INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR%/}/"
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TARGET_SYNC_DIR="${TARGET_SYNC_DIR%/}/"
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# Expand ~ if exists
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INITIATOR_SYNC_DIR="${INITIATOR_SYNC_DIR/#\~/$HOME}"
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TARGET_SYNC_DIR="${TARGET_SYNC_DIR/#\~/$HOME}"
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SSH_RSA_PRIVATE_KEY="${SSH_RSA_PRIVATE_KEY/#\~/$HOME}"
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SSH_PASSWORD_FILE="${SSH_PASSWORD_FILE/#\~/$HOME}"
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## Replica format
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## Why the f*** does bash not have simple objects ?
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# Local variables used for state filenames
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local lockFilename="lock"
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local stateDir="state"
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local backupDir="backup"
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local deleteDir="deleted"
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local partialDir="_partial"
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local lastAction="last-action"
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local resumeCount="resume-count"
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if [ "$_DRYRUN" == true ]; then
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local drySuffix="-dry"
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else
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local drySuffix=
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fi
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# The following associative like array definitions are used for bash ver < 4 compat
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readonly __type=0
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readonly __replicaDir=1
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readonly __lockFile=2
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readonly __stateDir=3
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readonly __backupDir=4
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readonly __deleteDir=5
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readonly __partialDir=6
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readonly __initiatorLastActionFile=7
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readonly __targetLastActionFile=8
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readonly __resumeCount=9
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readonly __treeCurrentFile=10
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readonly __treeAfterFile=11
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readonly __treeAfterFileNoSuffix=12
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readonly __deletedListFile=13
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readonly __failedDeletedListFile=14
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readonly __successDeletedListFile=15
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readonly __timestampCurrentFile=16
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readonly __timestampAfterFile=17
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readonly __timestampAfterFileNoSuffix=18
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readonly __conflictListFile=19
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readonly __updateTriggerFile=20
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INITIATOR=()
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INITIATOR[$__type]='initiator'
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INITIATOR[$__replicaDir]="$INITIATOR_SYNC_DIR"
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INITIATOR[$__lockFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$lockFilename"
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INITIATOR[$__stateDir]="$OSYNC_DIR/$stateDir"
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INITIATOR[$__backupDir]="$OSYNC_DIR/$backupDir"
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INITIATOR[$__deleteDir]="$OSYNC_DIR/$deleteDir"
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INITIATOR[$__partialDir]="$OSYNC_DIR/$partialDir"
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INITIATOR[$__initiatorLastActionFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/initiator-$lastAction-$INSTANCE_ID$drySuffix"
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INITIATOR[$__targetLastActionFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/target-$lastAction-$INSTANCE_ID$drySuffix"
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INITIATOR[$__resumeCount]="$INITIATOR_SYNC_DIR$OSYNC_DIR/$stateDir/$resumeCount-$INSTANCE_ID$drySuffix"
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INITIATOR[$__treeCurrentFile]="-tree-current-$INSTANCE_ID$drySuffix"
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INITIATOR[$__treeAfterFile]="-tree-after-$INSTANCE_ID$drySuffix"
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INITIATOR[$__treeAfterFileNoSuffix]="-tree-after-$INSTANCE_ID"
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INITIATOR[$__deletedListFile]="-deleted-list-$INSTANCE_ID$drySuffix"
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INITIATOR[$__failedDeletedListFile]="-failed-delete-$INSTANCE_ID$drySuffix"
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INITIATOR[$__successDeletedListFile]="-success-delete-$INSTANCE_ID$drySuffix"
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INITIATOR[$__timestampCurrentFile]="-timestamps-current-$INSTANCE_ID$drySuffix"
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INITIATOR[$__timestampAfterFile]="-timestamps-after-$INSTANCE_ID$drySuffix"
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INITIATOR[$__timestampAfterFileNoSuffix]="-timestamps-after-$INSTANCE_ID"
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INITIATOR[$__conflictListFile]="conflicts-$INSTANCE_ID$drySuffix"
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INITIATOR[$__updateTriggerFile]="$INITIATOR_SYNC_DIR$OSYNC_DIR/.osnyc-update.push"
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TARGET=()
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TARGET[$__type]='target'
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TARGET[$__replicaDir]="$TARGET_SYNC_DIR"
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TARGET[$__lockFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$lockFilename"
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TARGET[$__stateDir]="$OSYNC_DIR/$stateDir"
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TARGET[$__backupDir]="$OSYNC_DIR/$backupDir"
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TARGET[$__deleteDir]="$OSYNC_DIR/$deleteDir"
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TARGET[$__partialDir]="$OSYNC_DIR/$partialDir" # unused
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TARGET[$__initiatorLastActionFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/initiator-$lastAction-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__targetLastActionFile]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/target-$lastAction-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__resumeCount]="$TARGET_SYNC_DIR$OSYNC_DIR/$stateDir/$resumeCount-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__treeCurrentFile]="-tree-current-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__treeAfterFile]="-tree-after-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__treeAfterFileNoSuffix]="-tree-after-$INSTANCE_ID" # unused
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TARGET[$__deletedListFile]="-deleted-list-$INSTANCE_ID$drySuffix" # unused
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TARGET[$__failedDeletedListFile]="-failed-delete-$INSTANCE_ID$drySuffix"
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TARGET[$__successDeletedListFile]="-success-delete-$INSTANCE_ID$drySuffix"
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TARGET[$__timestampCurrentFile]="-timestamps-current-$INSTANCE_ID$drySuffix"
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TARGET[$__timestampAfterFile]="-timestamps-after-$INSTANCE_ID$drySuffix"
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TARGET[$__timestampAfterFileNoSuffix]="-timestamps-after-$INSTANCE_ID"
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TARGET[$__conflictListFile]="conflicts-$INSTANCE_ID$drySuffix"
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TARGET[$__updateTriggerFile]="$TARGET_SYNC_DIR$OSYNC_DIR/.osync-update.push"
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}
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function Usage {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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if [ "$IS_STABLE" != "yes" ]; then
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echo -e "\e[93mThis is an unstable dev build. Please use with caution.\e[0m"
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fi
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echo "$PROGRAM $PROGRAM_VERSION $PROGRAM_BUILD"
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echo "$AUTHOR"
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echo "$CONTACT"
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echo ""
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echo "You must use $PROGRAM with a full blown configuration file."
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echo "Usage: $0 /path/to/config/file [OPTIONS]"
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echo ""
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echo "[OPTIONS]"
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echo "--no-prefix Will suppress time / date suffix from output"
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echo "--silent Will run osync without any output to stdout, used for cron jobs"
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echo "--errors-only Output only errors (can be combined with silent or verbose)"
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echo "--verbose Increases output"
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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"
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echo ""
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exit 128
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}
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function OnChangesHelper {
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__CheckArguments 0 $# "$@" #__WITH_PARANOIA_DEBUG
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local cmd
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local retval
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if [ "$LOCAL_OS" == "MacOSX" ]; then
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if ! type fswatch > /dev/null 2>&1 ; then
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Logger "No inotifywait command found. Cannot monitor changes." "CRITICAL"
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exit 1
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fi
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else
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if ! type inotifywait > /dev/null 2>&1 ; then
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Logger "No inotifywait command found. Cannot monitor changes." "CRITICAL"
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exit 1
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fi
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fi
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if [ ! -d "$TARGET_SYNC_DIR" ]; then
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Logger "Target directory [$TARGET_SYNC_DIR] does not exist. Cannot monitor." "CRITICAL"
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exit 1
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fi
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Logger "#### Running $PROGRAM in file monitor mode." "NOTICE"
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while true; do
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if [ "$LOCAL_OS" == "MacOSX" ]; then
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fswatch $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude "$OSYNC_DIR" -1 "$TARGET_SYNC_DIR" > /dev/null &
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# Mac fswatch doesn't have timeout switch, replacing wait $! with WaitForTaskCompletion without warning nor spinner and increased SLEEP_TIME to avoid cpu hogging. This sims wait $! with timeout
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WaitForTaskCompletion $! 0 $MAX_WAIT 1 0 true false true
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else
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inotifywait $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --exclude "$OSYNC_DIR" -qq -r -e create -e modify -e delete -e move -e attrib --timeout "$MAX_WAIT" "$TARGET_SYNC_DIR" &
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wait $!
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fi
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retval=$?
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if [ $retval -eq 0 ]; then
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Logger "#### Changes detected, waiting $MIN_WAIT seconds before triggering update on initiator." "NOTICE"
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sleep $MIN_WAIT
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# inotifywait --timeout result is 2, WaitForTaskCompletion HardTimeout is 1
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elif [ "$LOCAL_OS" == "MacOSX" ]; then
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Logger "#### Changes or error detected, waiting $MIN_WAIT seconds before triggering update on initiator." "NOTICE"
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elif [ $retval -eq 2 ]; then
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Logger "#### $MAX_WAIT timeout reached, running sync." "NOTICE"
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elif [ $retval -eq 1 ]; then
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Logger "#### inotify error detected, waiting $MIN_WAIT seconds before triggering update on initiator." "ERROR" $retval
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sleep $MIN_WAIT
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fi
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TriggerInitiatorUpdate
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done
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}
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#### SCRIPT ENTRY POINT
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DESTINATION_MAILS=""
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ERROR_ALERT=false
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WARN_ALERT=false
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if [ $# -eq 0 ]
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then
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Usage
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fi
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first=1
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for i in "$@"; do
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case $i in
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--silent)
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_LOGGER_SILENT=true
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;;
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--verbose)
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_LOGGER_VERBOSE=true
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;;
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--help|-h|--version|-v)
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Usage
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;;
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--errors-only)
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_LOGGER_ERR_ONLY=true
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;;
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--no-prefix)
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_LOGGER_PREFIX=""
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;;
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*)
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if [ $first == "0" ]; then
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Logger "Unknown option '$i'" "CRITICAL"
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Usage
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fi
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;;
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esac
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first=0
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done
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# Remove leading space if there is one
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opts="${opts# *}"
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ConfigFile="${1}"
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LoadConfigFile "$ConfigFile"
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if [ "$LOGFILE" == "" ]; then
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if [ -w /var/log ]; then
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LOG_FILE="/var/log/$PROGRAM.$INSTANCE_ID.log"
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elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
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||||
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
|
||||
InitLocalOSDependingSettings
|
||||
PreInit
|
||||
Init
|
||||
CheckEnvironment
|
||||
PostInit
|
||||
CheckCurrentConfig
|
||||
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"
|
||||
|
||||
OnChangesHelper
|
||||
Loading…
Reference in New Issue