: /bin/sh
# Master upgrade script

curdir=`pwd`

#/*
#**	$Header: /u/catcom/scripts/src/RCS/t21install,v 1.3 97/04/02 12:45:21 catcom Exp $
#**	$Author: catcom $
#**	$Date: 97/04/02 12:45:21 $
#**	$Locker:  $
#*/

# default device
DEFDEV="/dev/rfd0"

# Define return values
: ${OK=0}  ${FAIL=1}  ${STOP=10}  ${HALT=11}

# clear the screen if it is supported
clearscr() {
	# check if the terminal environment is set up
	[ "$TERM" ] && clear 2> /dev/null
}

# Prompt for no or yes answer - returns non-zero for yes
getny() {
	while	echo "\n$* (y/n) \c">&2
	do	read yn rest
		case $yn in
		[yY])	return $FAIL 			;;
		[nN])	return $OK			;;
		*)	echo "Please answer y or n" >&2	;;
		esac
	done
}

# Prompt with mesg, return non-zero on q. Also allows setting -x and +x,
# shell escapes and the passing of default values
prompt() {
	mesg=$1
	while	echo "\n${mesg} or q to quit: \c" >&2
	do	read cmd
		case $cmd in
		+x|-x)	set $cmd					;;
		-v)	# Print the values of requested variables
			read x
			for var in $x
			do
				eval echo \$$var
			done
			;;
		Q|q)	return $FAIL					;;
		!*)	eval `expr "$cmd" : "!\(.*\)"`			;;
		"")	# If there is a second argument use it
			# as the default, else loop until 'cmd' is set
			[ "$2" ] && { 
				cmd=$2
				return $OK
			}
			: continue
			;;
		*)	return $OK					;;
		esac
	done
}

# main
#############################

# Must be root to do the install
if [ `id | cut -c5-5` != "0" ]
	then
	echo ERROR: Must be root to install
	exit 1
	fi

# change to the work directory
cd /tmp

# make sure ALL file systems are mounted
/etc/mountall

# ask for the tape, and insure thay have a formatted tape in the drive.
#echo "\nPlease insert volume 1 [default: $DEFDEV] :\c"
#read inputfile
#if [ -z "$inputfile" ]; then
#	inputfile="$DEFDEV"
#fi
inputfile=${curdir}/$1

# remove any old upgrade files
rm -f t21upg
rm -f t21upg.Z

#remove old install script
rm -f /tmp/INSTALL

cpio -ivcBmud -I $inputfile

# handle compress upgrade or install
if [ -f t21upg.Z ]; then
	uncompress t21upg.Z
	cpio -ivcBmud -I t21upg
fi

# run the release install script
/tmp/INSTALL

#  cleanup
rm -f t21upg
rm -f t21upg.Z

# Check install is OK.
desfile=`grep "\.des$" /tmp/INSTALL | cut -d " " -f3 | uniq | sed -e "s/\.des//`

# exit without checking description if desfile not in /tmp/INSTALL
if [ -z "$desfile" ]; then
	exit 0
fi

echo "Release description file [$desfile]"
if /u/catcom/scripts/chkreldes $desfile; then
	banner "OK"
else
	banner "Failed"
fi

echo "Hit Enter to continue."
read x

# all done.
exit 0

#/*
#**	$Log:	t21install,v $
# Revision 1.3  97/04/02  12:45:21  catcom
# added path to chkreldes program
# 
# Revision 1.2  96/10/11  14:57:13  catcom
# changed default dev to /dev/rfd0
# 
# Revision 1.1  96/10/11  11:56:22  catcom
# Initial revision
# 
# Revision 1.1  96/04/23  15:19:18  root
# Initial revision
# 
# Revision 1.2  95/03/30  14:07:14  catcom
# changed default device to /dev/rStp0
# 
# Revision 1.1  95/03/23  17:30:51  catcom
# Initial revision
# 
# Revision 1.4  92/09/17  12:57:08  catcom
# fixed the rm's
# 
# Revision 1.3  92/09/17  11:38:41  catcom
# fix bug in test for blank inputfile
# 
# Revision 1.2  92/09/17  10:58:26  catcom
# added cpio on compressed file so that upgrades can be loaded from files
# or devices
# 
# Revision 1.1  92/09/16  16:02:04  root
# Initial revision
# 
# Revision 1.4  92/07/28  13:51:09  catcom
# added /etc path to mountall
# 
# Revision 1.3  92/07/21  10:49:20  catcom
# modified to prompt for reboot at end
# 
#**	$Revision: 1.3 $
#**	$Source: /u/catcom/scripts/src/RCS/t21install,v $
#**	$State: Exp $
#*/