#! /bin/sh
# Installation script for NTeX (v 1.2)
# Copyright 1994, Frank Langbein
# All rights reserved.
#
# Redistributions of this script must retain the above copyright notice, 
# this condition and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

cat << EOF


NTeX Release 1.2
A TeX distribution for Linux

Welcome to the installation script.

EOF

curr_dir=$(pwd)
TEMP="/tmp"
root="/"
editor="vi"

echo -n "Do you want to install form [f]loppy or from [c]urrent dir? "
read ANS;
if test "$ANS" = "f" -o "$ANS" = "F"; then
   SOURCE=floppy
   SOURCEDIR=$TEMP"/ntex-fd."$$
   echo "Installing from floppy (MS-DOS format)."
   echo
   echo -n "Is the soruce drive /dev/fd[0] or /dev/fd[1]? "
   read ANS;
   if test "$ANS" = "0"; then
      DRIVE="/dev/fd0"
   elif test "$ANS" = "1"; then
      DRIVE="/dev/fd1"
   else
      echo "Not a proper choice. Bye!"
      exit 1
   fi
   echo Using the drive $DRIVE.
elif test "$ANS" = "c" -o "$ANS" = "C"; then
   SOURCE=currentdir
   SOURCEDIR=$curr_dir
   echo "Installing from current directory [$curr_dir]."
else
   echo "Not a proper choice. Bye!"
   exit 1
fi
echo
echo -n "Do you want to use the slakware installation script [y/n]? "
read ANS;
if test "$ANS" = "Y" -o "$ANS" = "y"; then
   INSTALL=$curr_dir"/installpkg"
   cat << EOF

Unsing slakware installation script.

EOF
elif test "$ANS" = "N" -o "$ANS" = "n"; then
   INSTALL=simple_install
   cat << EOF

Using a simple installation script. The names of the installed files
are written to [pkgname].files in the current directory.

EOF
else
   echo "Not a proper choice. Bye!"
   exit 1
fi

ask_install() {
cat $curr_dir/$1.inf
echo -n "Do you want to install $1 [y/n/q]? "
read ANS;
if test "$ANS" = "y" -o "$ANS" = "Y"; then
   touch $curr_dir/$1.ins
   echo $1 will be installed.
elif test "$ANS" = "q" -o "$ANS" = "Q"; then
   rm -f $curr_dir/*.ins
   echo "Bye!"
   exit 1
else
   echo $1 will not be installed.
fi
}

cat << EOF

Now choose the packages you want to install. Note that you can install
more packages later either by running this script again, by calling
installpkg [name].tgz if the package is in the current directory or 
by calling "cd /; gzip -d [name].tgz; tar xf [name].tar".

The header of the descriptions of the packages contains the version of
the package and a status field. The status can be neccessary, recommended,
optional. If the status of a package is necessary you need it to run TeX.
If it is recommended you do not really need it, but you should install
it. If it is optional, you should just install the package if you really
want to use it.

Press [Enter] to go through the package list.
EOF
read ANS;
rm -f $curr_dir/*.ins >/dev/null
for p in $(cat $curr_dir/pkgs)
do
ask_install $p
done

simple_install() {
pkn=$(echo $1 | sed -e s/.tgz//)
if test -r $2/$pkn".tgz"; then
   echo Installing $pkn...
   gzip -d - <$2"/"$pkn".tgz" >$3"/"$pkn".tar"
   cd $root
   tar xf $3"/"$pkn".tar"
   tar tf $3"/"$pkn".tar" >$curr_dir"/"$pkn".files"
   rm -f $3"/"$pkn".tar"
else
   echo Error: I cannot read $2/$pkn.tgz.
fi
}

if test -z "$(ls $curr_dir/*.ins 2>/dev/null)"; then
   cat << EOF

You did not choose a package to install. Bye!

EOF
   exit 0
fi

if test "$SOURCE" = "floppy"; then
   cat << EOF


Installing the choosen packages from disk.

EOF
mkdir $SOURCEDIR
for i in $(cat $curr_dir/disknam)
do
   echo -n "Insert disk $i and press [Enter]."
   read X
   WDANS=r
   while test "$WDANS" = "r"
   do
   # the following mounting procedure is based on code from Andy Schwierskott
      ANS=r
      error=1
      while test "$ANS" = "r" -a "$error" = 1
      do
         mount -r -t "$(cat $curr_dir/diskfs)" $DRIVE $SOURCEDIR
         error=$?
         if test "$error" = 1; then
            ANS=x
            while test "$ANS" != "r" -a "$ANS" != "q" ; do
               echo -n "Disk $i could not be mounted - [r]etry or [q]uit? "
               read ANS
            done
            if test "$ANS" = "q"; then
               rm -fr $SOURCEDIR
               rm -f $curr_dir/*.ins
               echo "Bye!"
	       exit 1
            fi
         fi
      done
      if test -e $SOURCEDIR/$i; then
         WDANS=n
         cd $SOURCEDIR
         for f in $(ls *.tgz)
         do
            pkgnam=$(echo $f | sed -e s/.tgz//)
            if test -e $curr_dir"/"$pkgnam".ins"; then
               if test "$INSTALL" = "simple_install"; then      
	          $INSTALL $pkgnam".tgz" $SOURCEDIR $TEMP
               else
		  $INSTALL $pkgnam".tgz"
               fi
            fi
         done
         cd $curr_dir
         umount $SOURCEDIR
      else
         WDANS=x
         while test "$WDANS" != "r" -a "$WDANS" != "q" ; do
            echo -n "You did not insert the $i disk - [r]etry or [q]uit? "
            read WDANS
         done
         umount $SOURCEDIR
         if test "$WDANS" = "q"; then
            rm -fr $SOURCEDIR  
            rm -f $curr_dir/*.ins
            echo "Bye!"
            exit 1
         fi
      fi
   done
done
rm -fr $SOURCEDIR
else
   cd $SOURCEDIR
   for i in *.ins
   do
      p=$(echo $i | sed -e s/.ins//)
      if test "$INSTALL" = "simple_install"; then      
         $INSTALL $p".tgz" $SOURCEDIR $TEMP
      else
	$INSTALL $p".tgz"
      fi
   done
fi

cat << EOF

Installation finished.

Now you have the pssibility to configure the packages you have installed.
Note that you can call the configuration scripts later from the directory
/usr/lib/texmf/tools. They have the same name as the package with a .cfg 
suffix.

EOF

if test -n "$(ls $curr_dir/ntm-ltx?.ins 2>/dev/null)"; then
   if test -r /usr/lib/texmf/tools/ntm-ltx.cfg; then
      /usr/lib/texmf/tools/ntm-ltx.cfg
   else
cat << EOF

Warning: I cannot start the configuration file for ntm-ltx!

EOF
   fi
fi

if test -e $curr_dir"/ntb-mf.ins"; then
   if test -r /usr/lib/texmf/tools/ntb-mf.cfg; then
      /usr/lib/texmf/tools/ntb-mf.cfg
   else
cat << EOF

Warning: I cannot start the configuration file for ntb-mf!

EOF
   fi
fi

if test -e $curr_dir"/ntb-dps.ins"; then
   if test -r /usr/lib/texmf/tools/ntb-dps.cfg; then
      /usr/lib/texmf/tools/ntb-dps.cfg
   else
cat << EOF

Warning: I cannot start the configuration file for ntb-dps!

EOF
   fi
fi

if test -e $curr_dir"/ntb-xdvi.ins"; then
   if test -r /usr/lib/texmf/tools/ntb-xdvi.cfg; then
      /usr/lib/texmf/tools/ntb-xdvi.cfg
   else
cat << EOF

Warning: I cannot start the configuration file for ntb-xdvi!

EOF
   fi
fi

echo -n Creating the ls-R database for kpathsea...
(cd /usr/lib/texmf; ls -R $(pwd) >ls-R)

rm -f $curr_dir/*.ins &>/dev/null
cd $curr_dir

cat << EOF 

The NTeX installation is complete. 

Comments, suggestions and bug reports to Frank Langbein - 
e94fla@student.tdb.uu.se or langbein@fermat.mathematik.uni-stuttgart.de.

EOF