debian-cd-clone/tools/which_deb

#!/bin/sh
#
# which_deb
#
# Simple helper tool to find the appropriate version of a package in
# the archive to meet a requirement in the debian-cd build

MIRROR=$1
CODENAME=$2
PKG=$3
PTH=$MIRROR/dists/$CODENAME/main

case $PKG in

    debootstrap)
        DEB="$MIRROR/"`zcat $PTH/binary-i386/Packages.gz | \
            awk '/\/debootstrap_.*deb/ {print $2}'`
        ;;

    silo)
        DEB="$MIRROR/"`zcat $PTH/binary-sparc/Packages.gz | \
        	awk '/\/silo.*deb/ {print $2}'`
        ;;

    syslinux)
        # More complex - look for syslinux-common, then fall back to
        # syslinux if we don't find that
        DEB="$MIRROR/"`zcat $PTH/binary-i386/Packages.gz | \
            awk '/\/syslinux-common.*deb/ {print $2}'`
        if [ "$DEB"x = "$MIRROR/"x ] ; then
            DEB="$MIRROR/"`zcat $PTH/binary-i386/Packages.gz | \
                awk '/\/syslinux.*deb/ {print $2}'`
        fi
        ;;

    yaboot)
        DEB="$MIRROR/"`zcat $PTH/binary-powerpc/Packages.gz | \
            awk '/\/yaboot.*deb/ {print $2}'`
        ;;

    *)
        # No idea what we should be doing here...
        DEB="$MIRROR/"
        ;;

esac

if [ "$DEB"x = "$MIRROR/"x ] ; then
    echo "$0: Failed to find a deb for package $PKG in $MIRROR/"
    exit 1
fi

echo $DEB