#!/bin/sh -u
#
# Copy a directory tree - refuse if target exists as safety measure.
# Faster, safer, more accurate and more informative than "cp -rp".
#	- Cameron Simpson <cs@zip.com.au>
#

cmd=`basename "$0"` || exit 1

bsize=20
[ $# -gt 0 ] && [ "x$1" = x-b ] && { bsize=$2; shift; shift; }

[ $# = 2 ] || { echo "Usage: $cmd [-b bsize] fromdir todir" >&2
		exit 2
	      }
from=$1
to=$2

[ -d "$to/."   ] && { echo "$cmd: $to already exists!" >&2; exit 1; }
[ -d "$from/." ] || { echo "$cmd: $from missing!" >&2; exit 1; }

case $ARCH in
    *.*.domainos) # preserve ACLs
	exec /com/cpt "$from" "$to" -pdt -sacl -ld
	;;
    *)	( cd "$from/." || exit 1
          case $ARCH in
            *.linux)
              exec tar -c -B -b "$bsize" -f - .
              ;;
            *)exec tar cBbf "$bsize" - .
              ;;
          esac
	) \
	| ( mkdir "$to" && cd "$to" && untar -b "$bsize" )
	;;
esac

sync &