#! /bin/sh -e

# backup procedures to glaucon

BACKUP_DIR=/backup
FILES_DIR=/backup/live
DB_DIR=/backup/databases

# nothing to configure below this line

usage() {
    cat <<EOF
Usage:
$0 <filesystem> ...
  filesystem: a filesystem to dump
EOF
}

if [ $# -lt 1 ]; then
    usage
    echo "not enough arguments"
fi

FILESYSTEMS="$@"

#mount -o remount,rw $BACKUP_DIR

#trap "umount $BACKUP_DIR" 1 2 15

mkdir -p $FILES_DIR $DB_DIR
chown backup $FILES_DIR $DB_DIR
chmod og-rxw $FILES_DIR $DB_DIR


# backup files
for fs in $FILESYSTEMS
do
   rsync -xa $fs/ $FILES_DIR/$fs/ || true
done

# backup mysql databases
mysql -s -B -u sys_backup -e 'SHOW DATABASES' | while read database
do
  mkdir -p $DB_DIR/$database
  mysqlhotcopy -q --addtodest --method=rsync $database $DB_DIR || true
  chown -R backup $DB_DIR/$database || true
  chmod -R og-rxw $DB_DIR/$database || true
done

#umount $BACKUP_DIR