#!/bin/bash

test $# -eq 2 || { echo "Usage: $0 <chroot template directory> <LO installation directory>"; exit 1; }

# No provision for spaces or other weird characters in pathnames. So sue me.

CHROOT=$1
INSTDIR=$2

mkdir $CHROOT || exit 1

cd $CHROOT || exit 1

(
    # Produce a list of file names, one per line, that will be copied
    # into the template tree of system files for the chroot jails.

    # First essential files and shared objects
    find /etc/passwd /etc/group /etc/hosts \
	 /etc/resolv.conf \
	 /lib/ld-* /lib64/ld-* \
	 /etc/ld.so.* \
	 /lib/libnss_* /lib64/libnss_* \
	 /usr/share/fonts \
	 /etc/fonts -type f

    # Go through the LO shared objects and check what system libraries
    # they link to.
    find $INSTDIR -name '*.so' -o -name '*.so.[0-9]*' |
    while read file; do
	ldd $file 2>/dev/null
    done |
    grep -v dynamic | cut -d " " -f 3 | grep -E '^(/lib|/usr)' | sort -u
) |

while read file; do
    cp --parents $file .
done