#!/bin/sh

# backup
# backs up my important directories to an external harddrive
#
# Georg Schuster <georg :at: schuster1.com>
# December 2006

help()
{
    echo "`basename $0` - syncs directories for backup"
    echo "Usage: `basename $0` -t <target> [-v]"
    echo "  -t : Sync mode, where <target> can be one of the following:"
    echo "          music : Syncs the music folder, no synced deletions"
    echo "          docs  : Syncs the whole Documents folder, no synced deletions"
    echo "          mnc   : Syncs the mnc folder, no synced deletions"
    echo "          vorlagen : Syncs the vorlagen folder, no synced deletions"
    echo "          all   : Syncs the following modes (in given order):"
    echo "                  1. music"
    echo "                  2. docs"
    echo "                  3. mnc"
    echo "                  4. vorlagen"
    echo "  -v : Increase verbosity"
    exit 3
}

syncTarget()
{
    case "$target" in
        music)  src="/Users/georg/Music/iTunes/iTunes Music"
                dst="/Volumes/Musik"
                #delete="--delete";;
                delete="";;
        docs)   src="/Users/georg/Documents"
                dst="/Volumes/Daten"
                delete="";;
        mnc)    src="/Users/georg/Documents/MNC"
                dst="/Volumes/Daten/Documents"
                #delete="--delete";;
                delete="";;
        vorlagen)   src="/Users/georg/Documents/Vorlagen"
                    dst="/Volumes/Daten/Documents"
                    #delete="--delete";;
                    delete="";;
        *)      echo "Error: Unknown target \"$target\"."
                echo ""
                help;;
    esac
    
    if [ -d "$src" -a -d "$dst" ]
    then
        sudo rsync -a$verbose "$src" "$dst" --eahfs $delete --showtogo --update
        if [ $? -eq 0 ]
        then
            echo ""
            echo "Target \"$target\" done."
        else
            echo ""
            echo "Error on target \"$target\"."
        fi
    else
        echo "Error: One of the paths does not exist. Is the harddrive mounted?"
        exit 2
    fi
}

help="true"

while getopts vt: option
do
    case "$option"
    in
        v)  verbose="v";;
        t)  target=$OPTARG
            help="false";;
    esac
done

if [ $help = "true" ]
then
    help
fi

if [ "$target" = all ]
then
    target=music
    syncTarget
    target=docs
    syncTarget
    target=mnc
    syncTarget
    target=vorlagen
    syncTarget
else
    syncTarget
fi