#!/bin/ksh
#< mkshar: create easy-to-unpack tar/shar file.
# usage:  mkshar relative-paths

PATH=/bin:/sbin:/usr/bin:/usr/sbin
export PATH
tag=`basename $0`

case "$#" in
    0)  echo need some files; exit 1 ;;
    *)  ;;
esac

now=`date '+%Y%m%d-%H%M%S'`
zfile="t${now}.Z"

manifest="`echo $* | tr ' ' '\012' | pr -5at | expand |
	   sed -e 's/  */ /g' -e 's/^/#   /'`"

# Header.

cat << EndHeader
#!/bin/sh
# extract uuencoded tar file.
# requires uncompress and uudecode to be installed.
# generated by $tag on `date`
#
# MANIFEST:
$manifest

PATH=/bin:/sbin:/usr/bin; export PATH
tmp='$zfile'

sed 's/^X//' << 'SHAR_EOF' | uudecode
EndHeader

# Body.

tar cf - $* | compress | uuencode $zfile | sed -e 's/^/X/'

# Footer.

cat << EndFooter
SHAR_EOF

uncompress -c $zfile | tar xvf - && rm $zfile
exit 0
EndFooter

exit 0