backupninjahandler

# home handler script for backupninja

# Every backup file will identify the host by its FQDN
getconf backupname

# Directory to store backups
getconf backupdir

# Default compression
getconf compress

# Include /home directory
getconf includes

# Exclude files with *.mp3 and *.mp4 extensions
getconf excludes

# Default extension for the packaged backup file
getconf EXTENSION

# Absolute path to date binary
getconf    TAR    `which tar`

# Absolute path to date binary
getconf    DATE    `which date`

# Chosen date format
DATEFORMAT="%Y-%m-%d"

# If backupdir does not exist, exit with fatal error
if [ ! -d "$backupdir" ]
then
   mkdir -p "$backupdir" || fatal "Can not make directory $backupdir"
fi

# If backupdir is not writeable, exit with fatal error as well
if [ ! -w "$backupdir" ]
then
   fatal "Directory $backupdir is not writable"
fi

# Set the right tar option as per the chosen compression format
case $compress in
   "gzip")
      compress_option="-z"
      EXTENSION="tar.gz"
      ;;
   "bzip")
      compress_option="-j"
      EXTENSION="tar.bz2"
      ;;
   "none")
      compress_option=""
      ;;
   *)
      warning "Unknown compress filter ($tar_compress)"
      compress_option=""
      EXTENSION="tar.gz"
      ;;
esac

# Exclude the following file types / directories
exclude_options=""
for i in $excludes
do
   exclude_options="$exclude_options --exclude $i"
done

# Debugging messages, performing backup
debug "Running backup: " $TAR -c -p -v $compress_option $exclude_options \
   -f "$backupdir/$backupname-"`$DATE "+$DATEFORMAT"`".$EXTENSION" \
   $includes

# Redirect standard output to a file with .list extension
# and standard error to a file with .err extension
$TAR -c -p -v $compress_option $exclude_options \
   -f "$backupdir/$backupname-"`$DATE "+$DATEFORMAT"`".$EXTENSION" \
   $includes \
   > "$backupdir/$backupname-"`$DATE "+$DATEFORMAT"`.list \
   2> "$backupdir/$backupname-"`$DATE "+$DATEFORMAT"`.err

[ $? -ne 0 ] && fatal "Tar backup failed"