4 REMOTE_BASE=/tmp/backmeupscotty
5 ARCHIVE_KEEPNBACKUPS=30
9 echo $(basename $0) | tr '[:lower:]' '[:upper:]'
16 function scottyerror {
17 echo $(upperme): $@ >&2
20 if [ $(pidof -x $(basename $0) | wc -w) -gt 2 ]; then
21 scottyerror Another instance of $(basename $0) is already running!
25 while getopts ":q" opt; do
33 function grepbackups {
34 ssh $REMOTE_HOST "ls $REMOTE_BASE/$1" | grep -E '[0-9]+-[0-9]+'
40 scottyinfo Syncing $1 to $REMOTE_HOST:$REMOTE_BASE/$2 @$timestamp
42 if [ ! -d "$1" ]; then
43 scottyerror Source dir $1 does not exist. Not syncing!
47 if [ $(ls -A "$1" | wc -l) -eq 0 ]; then
48 scottyerror Source dir $1 is empty. Not syncing!
52 dir_current=$REMOTE_BASE/$2/current
53 dir_incomplete=$REMOTE_BASE/$2/incomplete
54 dir_timestamped=$REMOTE_BASE/$2/$timestamp-$(date -d @$timestamp +%Y%m%d%H%M%S)
59 rsync_exclude=$(eval echo --exclude={$3} | tr -d {})
62 if (ssh $REMOTE_HOST '[ ! -d '$REMOTE_BASE/$2' ]'); then
63 scottyinfo Creating destination directory $REMOTE_HOST:$REMOTE_BASE/$2
64 ssh $REMOTE_HOST "mkdir $REMOTE_BASE/$2"
67 if (ssh $REMOTE_HOST '[ -d '$REMOTE_BASE/$2/incomplete' ]'); then
68 scottyerror Continuing old incomplete backup
71 scottyinfo Starting rsync
73 -v -aHAX --numeric-ids --delete --delete-excluded \
74 --link-dest=$dir_current \
76 $1/ $REMOTE_HOST:$dir_incomplete/
79 scottyinfo Timestamping completed backup and linking to current backup
81 "mv $dir_incomplete $dir_timestamped && rm -f $dir_current && ln -s $dir_timestamped $dir_current"
84 while [ $(grepbackups $2 | wc -l) -gt $ARCHIVE_KEEPNBACKUPS ]; do
85 oldestbackup=$(grepbackups $2 | head -1)
86 oldestbackuptstamp=$(echo $oldestbackup | cut -d'-' -f1)
88 if [ $oldestbackuptstamp -lt $(( $(date +%s) - $ARCHIVE_KEEPNDAYS*60*60*24 )) ]; then
89 scottyinfo Removing old backup $oldestbackup
90 ssh $REMOTE_HOST rm -r "$REMOTE_BASE/$2/$oldestbackup"