rotating rsync backup

.gitignore

*.txt

sync.sh

#!/bin/bash

# This little script creates incremental rsync backups from a
# list of folders specified in an include list to an external
# harddrive. Backups are important, you know.
#
# Usage
#
#     ./sync.sh backup_items.txt
#
#
# The result looks like this:
#
#     20120105-1759
#     20120107-1928
#     20120107-2000
#     20120323-1859
#     current -> /Volumes/Phobos/Users/sohooo/20120323-1859

# These rotating backups are possible with rsync's `--link-dest`
# parameter. Look here for more:
# http://www.sanitarium.net/golug/rsync_backups_2010.html


# Settings
# -------------------------------------------
# misc
label=$(date "+%Y%m%d-%H%M")

# backup objects
filelist=$1

# backup paths
backup_path="/Volumes/Phobos/Users/$USER"
inc_backup="${backup_path}/inc_backup-${label}"
full_backup="${backup_path}/${label}"
current_backup="${backup_path}/current"


# Checks
# -------------------------------------------
if [[ ! -f $filelist ]]; then
  echo "give me an filelist as parameter"
  echo "$0 files_sohooo.txt"
  exit 1
fi

if [[ ! -d $backup_path ]]; then
  echo "creating backup path $backup_path"
  mkdir -p $backup_path
fi

# Backup
# -------------------------------------------
echo "starting $USER's backup of the following stuff:"
cat $filelist

rsync -avzr \
  --progress \
  --stats \
  --link-dest=${current_backup} \
  --files-from=${filelist} \
  / $inc_backup

  # --delete \
  # --delete-excluded \

if [[ $? == 0 ]]; then
  echo "syncing successful"
else
  echo "syncing error; abort"
  exit 1
fi

echo "renaming backup folder"
mv -v $inc_backup $full_backup

echo "linking to current backup"
rm $current_backup
ln -sv $full_backup $current_backup

echo "total backup size"
du -sh $backup_path

echo 
echo "your stuff is safe now,"
echo "enjoy this warm and fuzzy feeling"