#!/bin/sh

ConfirmOrExit ()
{
    while true
    do
        echo -n "Please confirm (y or n) :"
        read CONFIRM
        case $CONFIRM in
            y|Y|YES|yes|Yes) break ;;
            n|N|no|NO|No)
                echo "Aborting - you entered $CONFIRM"
                exit
                ;;
            *) echo "Please enter only y or n"
        esac
    done
    echo "You entered $CONFIRM. Continuing ..."
}

mkbk_metadata() {

    # must be using gwak instead of sed, xargs and echo
    prt-get listinst -v | sed -s s/" "/#/g | xargs -i echo {}.pkg.tar.gz > ${DEST_DIR}/installed.pkg

    # make list and copy installed core packages
    prt-get printf "%i %p %n#%v-%r.pkg.tar.gz\n" | grep "yes /usr/ports/core" | cut -d " " -f 3 > ${DEST_DIR}/core.pkg

    prt-get printf "%i %p %n#%v-%r.pkg.tar.gz\n" | grep "yes /usr/ports/opt" | cut -d " " -f 3 > $DEST_DIR/opt.pkg

    prt-get printf "%i %p %n#%v-%r.pkg.tar.gz\n" | grep "yes /usr/ports/contrib" | cut -d " " -f 3 > $DEST_DIR/contrib.pkg

    prt-get printf "%i %p %n#%v-%r.pkg.tar.gz\n" | grep "yes /usr/ports/xorg" | cut -d " " -f 3 > $DEST_DIR/xorg.pkg

    prt-get printf "%i %p %n#%v-%r.pkg.tar.gz\n" | grep -v "yes /usr/ports/core" | grep -v "yes /usr/ports/opt" | grep -v "yes /usr/ports/contrib" | grep -v "yes /usr/ports/xorg" | grep "yes " | cut -d " " -f 3 > $DEST_DIR/other.pkg

}

mkbk_coll_pkg() {
    col=$1
    # make copy of packages
    mkdir ${PORT_PKG}/${col}
    while read line; do
            if [ ! -f /usr/ports/packages/${line} ]; then
                echo "Building package: ${line};\n"
                name=$(echo ${line} | cut -d "#" -f 1)
                #$sudo prt-get update -fr ${name}
            fi

            if [ -f /usr/ports/packages/${line} ]; then
                echo "Backing up package: ${line}"
                echo ${line} >> ${DEST_DIR}/backup.pkg
                cp /usr/ports/packages/${line} ${PORT_PKG}/${col}/
            else
                echo "Package not found: ${line}"
                echo ${line} >> ${DEST_DIR}/${col}-notfound.pkg
            fi
    done < $DEST_DIR/${col}.pkg
}

mkbk_coll_ports() {
    col=$1

#    tar --xattrs -zcpf $PORT_PRT/${col}-`date '+%Y-%j-%H-%M-%S'`.tar.gz \
#    --directory=$ROOT_DIR/usr/ports/${col} \
#    .
    tar --xattrs -zcpf $PORT_PRT/${col}.tar.gz \
    --directory=$ROOT_DIR/usr/ports/${col} \
    --exclude=.git/ \
    .

}

mkbk_data_conf() {

    tar --xattrs -zcpf $DATA_CNF/etc.tar.gz \
        --directory=$ROOT_DIR/etc \
        .

    tar --xattrs -zcpf $DATA_CNF/usr_etc.tar.gz \
        --directory=$ROOT_DIR/usr/etc \
        .
}


echo -n "root directory you want backup (/mnt/): "
#read ROOT_DIR
ROOT_DIR=$1

echo -n "where you want to save (/home/user): "
DEST_DIR=$2

# Temporary directory
PORT_PKG="${DEST_DIR}/crux"
PORT_PRT="${DEST_DIR}/ports"
DATA_CNF="${DEST_DIR}/conf"

echo "ROOT_DIR=${ROOT_DIR}"
echo "DEST_DIR=${DEST_DIR}"
echo "PORT_PKG=${PORT_PKG}"
echo "PORT_PRT=${PORT_PRT}"
echo "DATA_CNF=${DATA_CNF}"

ConfirmOrExit

mkdir -p ${PORT_PKG}
mkdir -p ${PORT_PRT}
mkdir -p ${DATA_CNF}

mkbk_metadata
mkbk_data_conf

mkbk_coll_ports "core"
mkbk_coll_pkg "core"
mkbk_coll_ports "opt"
mkbk_coll_pkg "opt"
mkbk_coll_ports "contrib"
mkbk_coll_pkg "contrib"
mkbk_coll_ports "xorg"
mkbk_coll_pkg "xorg"

mkbk_coll_pkg "other"

#echo $DES_DIR
#echo $ROOT_DIR
#
#tar --xattrs -zcpf $DEST_DIR/system-backup-`date '+%Y-%j-%H-%M-%S'`.tar.gz \
#    --directory=$ROOT_DIR \
#    --exclude=usr/ports \
#    --exclude=usr/src \
#    --exclude=var/run \
#    --exclude=var/lock \
#    --exclude=srv \
#    --exclude=mnt \
#    --exclude=home \
#    --exclude=dev \
#    --exclude=run \
#    --exclude=tmp \
#    --exclude=proc \
#    --exclude=sys .