#!/bin/csh
#
#  1994 (c) Bunyip Information Systems, Inc.
#           by Luc Boulianne (lucb@bunyip.com)
#
# For solaris ...
set path=(/usr/ucb $path)
#
set VERS=3.5
set ARCHIE=archie
set ARCHHOME=~archie
set basedone=0

set id=`id | sed 's/(.*$//' | sed 's/^.*=//'`; 
if ( $id != 0 ) then 
	echo "You must be running as superuser to install archie"; 
	exit 2;
endif

(echo $ARCHHOME > /dev/null)

if ($status == 1) then
	cat - <<EOC

	Unable to find archie's home directory. You must have an archie home
	directory to successfully use this script. Please create one now.
	Refer to the System Manual for additional instructions.

EOC
	exit
endif

cat - <<EOC

                              archie $VERS
			
This \`unwrap' script is an elementary tool for upgrading to or installing
your archie $VERS distribution. You need to have gzip installed in your
system. If you do not have it you may get the source through anonymous ftp
from ftp.bunyip.com in the directory /pub/gnu.  The script will proceed in 
two phases:

	Phase 1:  will search for any distribution (*.tgz) files. If any are
		  found, it will try to unpack them in the current archie
		  home directory. Currently there are two distribution
		  files, and you will be prompted before any are unpacked.

		  For an upgrade, care will be taken to move aside any files
		  this script is about to overwrite, by rotating these files
		  (ie:  \`file-a' becomes \`file-a.0', etc. Should any mishap
		  occur, the script \`unrotate' has been provided to assist
		  you in recovering rotated files.
		  
	Phase 2:  will proceed to install an empty archie database. The
		  script will try to determine if you already have such a
		  database. Again, you will be prompted before proceeding.


EOC

echo -n "Proceed? [n] "
set ans="$<"
if ( $ans != "y" ) then
	echo "Not proceeding"
	exit
endif

set ARCH=`uname -s`
set MACHINE=`uname -m`

set dirname=`dirname $0`

if ( "$MACHINE" == "sun4m" ) then
switch ($ARCH)
   case SunOS:
	if ( `uname -r` == 5.6 ) then
		set REL=5.4
	endif 
	if ( `uname -r` == 5.5 ) then
		set REL=5.4
	endif 
	if ( `uname -r` == 5.4 ) then
		set REL=5.4
	endif 
	if ( `uname -r` == 4.1.4 ) then
		set REL=4.1.4
	endif
	breaksw
   case AIX:
	set REL=3.2
	breaksw
endsw
endif

if ( "$MACHINE" == "i86pc" ) then
switch ($ARCH)
   case SunOS:
	if ( `uname -r` == 5.11 ) then
		set REL=5.6
	endif 
	if ( `uname -r` == 5.10 ) then
		set REL=5.6
	endif 
	if ( `uname -r` == 5.9 ) then
		set REL=5.6
	endif 
	if ( `uname -r` == 5.8 ) then
		set REL=5.6
	endif 
	if ( `uname -r` == 5.7 ) then
		set REL=5.6
	endif 
	if ( `uname -r` == 5.6 ) then
		set REL=5.6
	endif 
   case AIX:
	set REL=5.6
	breaksw
endsw
endif


echo "Phase 1: Unpacking the distribution"
set name=archie-${VERS}-${ARCH}-${REL}-${MACHINE}-base.tgz
	echo -n "Looking for the distribution file [$name] ..."
	if ( -f $name ) then
		echo "found it."
		if ( -e $ARCHHOME/help ) then
			cat - <<EOC1

	It looks like you already have an archie system in ~$ARCHIE. This
	probably means you want to upgrade your system. The 3.3 upgrade only
	requires that you upgrade your binary files along with a few
	miscellaneous files. The \`archie-${VERS}-${ARCH}-${REL}-${MACHINE}.tgz'
	distribution file contains all you require.
EOC1
			if ( $ARCH != "AIX") then
				cat - <<EOC2

	You probably don't need to install this \`base' distribution file.

	If you still want to proceed with the installation of this base
	distribution, then we strongly suggest that you abort this script,
	set the \`archie' home directory in a new location and re-run this
	script.

EOC2
			else
				cat - <<EOC3

	However, on the AIX platform, which you are running on, you will
	need to install this \`base' distribution file along with the
	\`binaries' distribution file. We STRONGLY suggest that you ABORT
	this script, set the \`archie' home directory to a new, empty
	location and re-run this script.

EOC3
			endif
			echo -n "Abort this script now [y] "
			set ans="$<"
			if ( $ans != "n" ) then
				echo "Aborting."
				exit
			endif
		endif
		echo -n "Proceed with installation of base distribution? [n] "
		set ans="$<"
		if ( $ans != "y" ) then
			echo "Not Proceeding."
		else
			echo "Untar proceeding..."
			echo "$dirname/untar -d $ARCHHOME $name"
			$dirname/untar -d $ARCHHOME $name
			set basedone=1
		endif
	else
		echo "not found."
	endif

set name=archie-${VERS}-${ARCH}-${REL}-${MACHINE}-A.tgz
	echo -n "Looking for the distribution file [$name] ..."
	if ( -f $name ) then
		echo "found it."
		echo -n "Untar ${name}? [n] " 
		set ans="$<"
		if ( $ans != "y" ) then
			echo "Not untarring."
		else
			echo "Untar proceeding..."
			echo "$dirname/untar -d $ARCHHOME $name"
			$dirname/untar -d $ARCHHOME $name
		endif
	else
		echo "not found."
	endif

set name=archie-${VERS}-${ARCH}-${REL}-${MACHINE}-B.tgz
	echo -n "Looking for the distribution file [$name] ..."
	if ( -f $name ) then
		echo "found it."
		echo -n "Untar ${name}? [n] " 
		set ans="$<"
		if ( $ans != "y" ) then
			echo "Not untarring."
		else
			echo "Untar proceeding..."
			echo "$dirname/untar -d $ARCHHOME $name"
			$dirname/untar -d $ARCHHOME $name
		endif
	else
		echo "not found."
	endif
echo "Phase 1: done."


echo ""
set dbtar=$ARCHHOME/tmp/db.tar
set dbdir=$ARCHHOME/db
set dbtst=$ARCHHOME/db/host_db/host-db.pag 

if (( $basedone == 1 ) && ( -e $dbtar )) then
	echo "Phase 2: Installation of a EMPTY archie database."
	echo "[Making sure there is not one there already.]"
	echo "[Looking for ~$ARCHIE/db and ~$ARCHIE/db/host_db/host-db.pag...]"
	if ( -e $ARCHHOME/db && -e $dbtst ) then
		echo "It seems you might have an archie database..."
		if ( -z $dbtst ) then
			echo "It seems you have an empty archie hosts database"
			echo "CAUTION: I could be wrong. Answering 'y' will"
			echo ' destroy any archie database you might have had.'
		else
			echo "It seems you have an active archie hosts database"
			echo "WARNING: answering 'y' will DESTROY it"
		endif
	else
		echo "It seems that you don't have an archie database"
	endif
	echo -n "Should I proceed with the installation of an EMPTY archie database? [n] "
	set ans="$<"
	if ( $ans != "y") then
		echo "Not proceeding."
	else
		cd $ARCHHOME
		echo "These are the files that I will be installing:"
		tar tvf tmp/db.tar
		echo -n "Are you really sure you want to proceed? [n] "
		set ans="$<"
		if ( $ans == "y") then
			echo "OK. Here we go."
			tar xvpf tmp/db.tar
		else
			echo -n "That was close [y/n] "
			set ans="$<"
			echo "=:-)"
		endif
	endif
	echo "Phase 2: done."
endif
echo ""
echo "Don't forget to configure your setup, ie: type:"
echo ""
echo "    	cd ~$ARCHIE/config; make"
echo ""