: Use /bin/sh
#
# $Header: /usr0/ghk/free/ispell/RCS/makeshar,v 1.2 89/07/11 00:24:58 geoff Exp $
#
# $Log:	makeshar,v $
# Revision 1.2  89/07/11  00:24:58  geoff
# Don't forget to remove the temp file at the end.
# 
# Revision 1.1  89/06/23  00:26:07  geoff
# Initial revision
# 
#
# Make a shar file, keeping file sizes below a maximum, but as large as
# possible.  The output files are put in file01.shar through filenn.shar,
# where "file" is the output base name (default "prog").
#
# If one of the output files is named "README", it is placed first in the
# first shar file.
#
# Usage:
#
#	makeshar [-n] [-m max-size] [-o output-base ] [shar-switches] file-list
#
SHAR_SW=
MAXSIZE=60000
OUTPUT_BASE=prog
NUM_SHARS=no
TMP=${TMPDIR:-/tmp}/ms$$

while [ $# -gt 0 ]
do
    case "$1" in
	-m)
	    MAXSIZE=$2
	    shift; shift
	    ;;
	-n)
	    NUM_SHARS=yes
	    shift
	    ;;
	-o)
	    OUTPUT_BASE="$2"
	    shift; shift
	    ;;
	-*)
	    SHAR_SW="$SHAR_SW $1"
	    shift
	    ;;
	*)
	    break
	    ;;
    esac
done
trap "/bin/rm -f ${TMP}; exit 1" 1 2 15
trap "/bin/rm -f ${TMP}; exit 0" 13
sed -e "s;OUTPUT_BASE;$OUTPUT_BASE;" -e "s;SHAR_SW;$SHAR_SW;" \
  -e "s;MAXSIZE;$MAXSIZE;" > ${TMP} << 'EOF_AWK_SCRIPT'
    BEGIN { nfiles = 0 }
	{
	if ($3 == "total")
	    next
	# Shar adds one extra character per line
	size[nfiles] = $1 + $2
	files[nfiles] = $3
	nfiles++
	}
    END \
	{
	outbase = "OUTPUT_BASE"
	sharcount = 1
	for (filesdone = 0;  filesdone < nfiles;  sharcount++)
	    {
	    printf ("%s", "sharSHAR_SW")
	    totsize = 0
	    for (i = 0;  filesdone == 0  &&  i < nfiles;  i++)
		{
		if (files[i] == "README")
		    {
		    filesdone++
		    totsize += size[i]
		    printf (" %s", files[i])
		    files[i] = ""
		    size[i] = 0
		    }
		}
	    for (i = 0;  totsize < MAXSIZE  &&  i < nfiles;  i++)
		{
		if (files[i] != "" \
		  &&  (totsize == 0  ||  size[i] < MAXSIZE - totsize))
		    {
		    filesdone++
		    totsize += size[i]
		    printf (" %s", files[i])
		    files[i] = ""
		    size[i] = 0
		    }
		}
	    printf (" > %s%2.2d.shar\n", outbase, sharcount)
	    }
	print "echo", sharcount - 1
	}
EOF_AWK_SCRIPT
nshars=`wc -lc "$@" \
  | sort -rn \
  | awk -F ${TMP} \
  | sh`
if [ $NUM_SHARS = yes ]
then
    echo $nshars
else
    echo $nshars shar files:
    ls -l "$OUTPUT_BASE"??.shar
fi

/bin/rm -f ${TMP}
