Shellscript config file

system-a {
  IP="10.8.0.1"
  FOLDERS=( \
    /etc \
    /opt \
    /var/www \
  )
  EXCLUDES=( \
    /opt/backup \
  )
}

#!/usr/bin/env bash

# Sections in Configfile to Backup
BACKUPS=(
 system-a \
)

function readconf() {
    match=0
    while read line; do
        # skip comments
        [[ ${line:0:1} == "#" ]] && continue

        # skip empty lines
        [[ -z "$line" ]] && continue

        # still no match? lets check again
        if [ $match == 0 ]; then

            # do we have an opening tag ?
            if [[ ${line:$((${#line}-1))} == "{" ]]; then

                # strip "{"
                group=${line:0:$((${#line}-1))}
                # strip whitespace
                group=${group// /}

                # do we have a match ?
                if [[ "$group" == "$1" ]]; then
                    match=1
                    continue
                fi

                continue
            fi

        # found closing tag after config was read - exit loop
        elif [[ ${line:0} == "}" && $match == 1 ]]; then
            break

        # got a config line eval it
        else
            eval $line
        fi

    done < "$CONFIG"
}


CONFIG="/opt/backup/config.cfg"
for SERVER in ${BACKUPS[@]}
do
    readconf $SERVER
    EXCLUDE=""
    if [ ! -d "./servers/$IP" ]; then
        mkdir -p "./servers/$IP"
    fi
    for EX in ${EXCLUDES[@]}
    do
       EXCLUDE="${EXCLUDE} --exclude=${EX}"
    done

    for DIR in ${FOLDERS[@]}
    do
	rsync $EXCLUDE -avbuR $IP:${DIR} /opt/backup/servers/$IP
    done
done