#! /bin/sh

# This shell script runs findnewrcs on a clone tree.

# Usage
DoUsage()
{
	cat << dernier
Usage: fnrclone [-OPTIONS] <source> <destination>   
	where OPTIONS are:
        [-c (checkout any new versions of files from RCS)]
        [-s (create a script & log file in $HOME/fnrclone and
	    execute the script)]
        [-n (leave actual files, not symbolic links)]
	[-f <logfile name> (create a log file of changes)]
	[-d (descend symbolically linked directories)]
	[-S (do not follow symbolic links for files)
        [-O (do not check out files, Only create symbolic links for existing files)
	[-C (process SCCS directories[usually they are ignored])
        [-u Usage message]
NOTE: the default is make symbolic links and don't check out newer
      revisions of files, just shadow the source. If the RCS directory is 
      accessible, check out any brand new files as real files. If the
      RCS directory is not accessible (remote exchange), do NOT check out
      any brand new files.
dernier
}
			
		
if [ $# -lt 2 ] ; then
	DoUsage
	exit 1
fi

DEF_s="L"
DEF_X="X"
LINKOPT="l"
ACTUAL=
#Parse the options
set -- `getopt csSCOdnuf: $*`
while [ $# -gt 0 ]
do
	case $1 in
		-n) LINKOPT= ;shift;;
		-s) DEF_X=;shift;;
		-S) DEF_S=s;shift;;
		-c) DEF_s=;shift;;
		-C) DEF_C=C;shift;;
		-O) DEF_O=O;shift;;
		-u) DoUsage;shift;;
		-f) LOG=$2;shift 2;;
		-d) ACTUAL="${ACTUAL}f";shift;;
		--) shift;;
		-*) DoUsage;shift;;
		 *) SRC=$1;DEST=$2;shift 2;;
	esac
done

OPTS="${DEF_X}${DEF_s}${DEF_S}${DEF_C}${DEF_O}${ACTUAL}${LINKOPT}miA"

#
# get the system from uname -s
#
SYSTEM=`uname -s`
RELEASE=`uname -r`
MACHINE=`uname -m`

Findnewrcs="findnewrcs.${SYSTEM}"
if [ "$SYSTEM" = "HP-UX" ];then
	# 700's
	M700=`echo $MACHINE | fgrep '/7' 2>/dev/null` 
	M800=`echo $MACHINE | fgrep '/8' 2>/dev/null`
	R100=`echo $RELEASE | fgrep '10.' 2>/dev/null` 
	R90=`echo $RELEASE | fgrep '9.' 2>/dev/null` 
	R80=`echo $RELEASE | fgrep '8.' 2>/dev/null` 
	R70=`echo $RELEASE | fgrep '7.' 2>/dev/null` 
	if [ "$M700" ]; then
		if [ "$R100" ];then
			Findnewrcs="findnewrcs.700.100"
		elif [ "$R80" ];then
			Findnewrcs="findnewrcs.700.807"
		fi
	elif [ "$M800" ]; then
		if [ "$R100" ];then
			Findnewrcs="findnewrcs.800.100"
		elif [ "$R90" ];then
			Findnewrcs="findnewrcs.800.90"
		elif [ "$R80" ];then
			Findnewrcs="findnewrcs.800.80"
		else
			Findnewrcs="findnewrcs.800.70"
		fi
	else
		if [ "$R90" ];then
			Findnewrcs="findnewrcs.300.90"
		elif [ "$R80" ];then
			Findnewrcs="findnewrcs.300.80"
		fi
	fi
fi
			
if [ "$SYSTEM" = "SunOS" ];then

  if [ "$MACHINE" = "i86pc" ];then
    Findnewrcs="findnewrcs.UNIX_SV"
  elif [ "$MACHINE" = "prep" ];then
    Findnewrcs="findnewrcs.SunOS_PPC"
  else
    Findnewrcs="findnewrcs.SunOS"
  fi

fi

#
# make an old style script
#
FNR_BINDIR=`dirname $0`
if [ ! "$DEF_X" ];then
	DATE=`date +%H%M%S`
	FNR_DIR=/$HOME/fnrclone
	[ ! -d $FNR_DIR ] && mkdir $FNR_DIR
	FNR_SCRIPT=$FNR_DIR/script$DATE
	FNR_LOG=$FNR_DIR/log$DATE
	$FNR_BINDIR/$Findnewrcs -S${SRC} -W${DEST} -${OPTS} > $FNR_SCRIPT 2> $FNR_LOG
	chmod 777 $FNR_SCRIPT
	chmod 777 $FNR_LOG
	$FNR_SCRIPT
	echo "`basename $0`: script is in $FNR_SCRIPT, logfile is $FNR_LOG"
	if [ "$LOG" ];then
		cat $FNR_LOG > $LOG
		echo "logfile is also in $LOG"
	fi
else # execute without a script
	if [ "$LOG" ];then
		$FNR_BINDIR/$Findnewrcs -S${SRC} -W${DEST} -${OPTS} 2> $LOG
	else 
		$FNR_BINDIR/$Findnewrcs -S${SRC} -W${DEST} -${OPTS}
	fi
fi