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Code: Select all

#!/bin/bash

# Archives a given folder ready for uploading to S3
# Incremental backups available via backup level 1
# Encryption is encouraged via the -e option

S3BACKUPDIR=/home/steve/s3backups
SYNCDIR=$S3BACKUPDIR/sync
TMPDIR=$S3BACKUPDIR/tmp
SNARDIR=$S3BACKUPDIR/snar

if [[ $# == 0 ]]
then
	echo "Usage: "
	echo "  $0 [opts] <source> <backup level>"
	echo "Valid options:"
	echo "  -e <name>"
	echo "     Encrypt the resulting archive to GPG recipient"
	exit
fi

# Deal with optional named arguments
while getopts "e:" Opt
do
	case $Opt in
		e) GPGRECIPIENT=$OPTARG;;
	esac
done
shift $(($OPTIND - 1))


if [[ ! -e "$1" ]]
then
	echo "First parameter needs to be source folder"
	exit
fi

SOURCE=$1
#Replace all slashes with percent signs for name
NAMEBASE=${SOURCE//\//%}

case "$2" in
	"0")
		NAMEBASE=${NAMEBASE}_base
		INCREMENTAL_FILE=$SNARDIR/${NAMEBASE}.snar
		rm $INCREMENTAL_FILE
		;;
	"1")
		INCREMENTAL_FILE=$SNARDIR/${NAMEBASE}_inc.snar
		cp $SNARDIR/${NAMEBASE}_base.snar $INCREMENTAL_FILE
		NAMEBASE=${NAMEBASE}_inc
		;;
	*)
		echo "Backup level needs to be 0 or 1"
		exit;
		;;
esac

TARDEST=$TMPDIR/$NAMEBASE.tar.bz2
# Append parameter to name to differentiate incremental


# Create archive
rm -f $TARDEST
tar --listed-incremental=$INCREMENTAL_FILE -cvjf $TARDEST $SOURCE

# Encrypt?
if [[ "$GPGRECIPIENT" != "" ]]
then
	gpg -e -r $GPGRECIPIENT $TARDEST
	FINALFILE=$TARDEST.gpg
else
	echo "WARNING: Archive not encrypted!"
	FINALFILE=$TARDEST
fi

# Move to sync location
mv $FINALFILE $SYNCDIR/

Code: Select all

#!/bin/bash
./s3archive.sh -e your@gpg.identity /home/steve/somethingimportant 0
./s3archive.sh -e your@gpg.identity /home/steve/otherstuff 0

export AWS_ACCESS_KEY_ID=WHATEVERYOURSIS
export AWS_SECRET_ACCESS_KEY=YOURACCESSKEY

/usr/local/lib/s3sync/s3sync.rb --progress --ssl /home/steve/s3backups/sync/ com.stevestreeting.backups: