#!/bin/sh
#
#  This file will attempt to download the PGPLOT library
#  and then build it for a linux system.
#
#  syntax:    PGPLOT_install --system=system_os --prefix=PREFIX
#
#  where system_os is linux, irix, sun4, etc
#
#  This may need customization for some systems
#
#  verified on: linux
#
prefix='/usr/local/'
system='linux'
dir=`pwd`
logfile=$dir/PGPLOT_install.log
wget=/usr/bin/wget
ncftp=/usr/bin/ncftp
ftp=/usr/bin/ftp

# set pgplot file locales
#
pgp_ftpsite='ftp.astro.caltech.edu'
pgp_ftpdir='pub/pgplot/'
pgp_file='pgplot5.2.tar.gz'

#
# default is to build with gif and without png support
#
with_gif=1
with_png=1
do_clean=1
do_log=1

# get command line options
for opt
do
  option=''
  case "$opt" in
    -*=*) 
         optarg=`echo "$opt" | sed 's/[-_a-zA-Z0-9]*=//'` 
         option=`echo "$opt" | sed 's/=.*//' | sed 's/-*//'`  
         ;;
    *) 
         option=`echo "$opt" | sed 's/^-*//'` 
         optarg= 
         ;;
  esac
  case "$option" in
    prefix)    prefix=$optarg ;;
    system)    system=$optarg ;;
    no-clean)  do_clean=0 ;;
    no-log)    do_log=0 ;;
    with-png)  with_png=1 ;;
    with-gif)  with_gif=1 ;;
    no-png)    with_png=0 ;;
    no-gif)    with_gif=0 ;;
    -help | --help | help) cat<<EOF
Usage: PGPLOT_install [options] 
Options: 
  --prefix=PREFIX   base directory for installation [$prefix]
  --system=SYSTEM   operating system type for PGPLOT drivers [$system]
                    typical values would be   linux irix sun4 

  --with-png  / --no-png   add/remove PNG driver
  --with-gif  / --no-gif   add/remove GIF driver

  --no-log          do NOT generate PGPLOT_install.log
  --no-clean        do not remove any files created during build

EOF
    exit 0
    ;;

   *) 
       echo " unknown option "  $opt
       exit 1
        ;; 
  esac
done



echo " = = = = = = = = = = = = = = = = = = = = = = = = = = "
echo " = PGPLOT installation script"
echo " ="
#
# place to put pgplot  and the final libraries
#
pgp_dir=$prefix/pgplot/

pgp_sys=$system

if test $system = linux ;  then 
    pgp_sys="linux g77_gcc"
fi 

if test $system = sol2 ;  then 
    pgp_sys="sol2 f90_cc"
fi

echo " system = " $system " == "  $pgp_sys
echo " prefix = " $prefix


if test $do_log = 1 ;  then 
  echo "# PGPLOT install log " >  $logfile
  echo "# system = " $system " == "  $pgp_sys >> $logfile
  echo "# prefix = " $prefix    >> $logfile
fi

#
#-----------------------------------------
##
## try wget, ncftp, and then ftp to get file

echo " = Looking for PGPLOT file: $pgp_file"
if [ -f $pgp_file ] ; then
   x=1
else
  echo " = PGPLOT file not found "
  echo " = I'll try to download it for you..."
  if [ -f $wget  ] ; then
     echo " trying with wget"
     tmp="ftp://$pgp_ftpsite/$pgp_ftpdir$pgp_file"
     echo "getting $tmp"
     wget --tries=2 $tmp 
  fi
fi

if [ -f $pgp_file ]; then 
    x=1
else
  if [ -f $ncftp ] ; then
     echo " trying with ncftp"
     $ncftp $pgp_ftpsite<<EOF
     set confirm-exit  no
     set confirm-close no
     cd  $pgp_ftpdir
     get $pgp_file
     exit
EOF
  fi
fi
if [ -f $pgp_file ]; then
   x=1
else
   if [ -f $ftp ] ; then
     echo "  trying with regular old ftp "
     echo "  you may have to hit return here for this to work --  "
     echo "  Really, you won't need to enter 'anonymous' or a valid"
     echo "  username --- just hit return"
     $ftp $pgp_ftpsite<<EOF
anonymous
ifeffit@cars.uchicago.edu
cd  $pgp_ftpdir
hash
get $pgp_file
exit
EOF
   fi
fi

##
## if we still don't have the file, croak
if [ -f $pgp_file ]; then
   echo " = I see the PGPLOT tar file.  Good."
else
   echo " = Sorry, I couldn't download the PGPLOT tar file."
   echo " = You'll have to download it yourself. Try this: "
   echo " =   ftp $pgp_ftpsite"
   echo " =   cd  $pgp_ftpdir"
   echo " =   get $pgp_file"
   echo " = then run this script again"    
 
   if test $do_log = 1 ;  then 
      echo "# pgplot tar file not found " >>  $logfile
   fi
   exit 1
fi


##
echo " = Preparing PGPLOT Installation: "
echo " = Looking for X libraries "
if [ -d /usr/X11 ] ; then
     echo " =   X libraries found at /usr/X11 "
else
  if [ -d /usr/X11R6 ] ; then
     echo " =   X libraries found at /usr/X11R6 "
     echo " =   making a symbolic link from /usr/X11R6 to /usr/X11 :"
     ln -s /usr/X11R6 /usr/X11
  else
     echo " =   X libraries not found: could be serious! = "
  fi
fi

## unpack kit

echo " = Unpacking PGPLOT: "
gzip -dc  $pgp_file | tar xf -

echo " = Creating $pgp_dir and drivers.list "
mkdir -p $pgp_dir

##
## create drivers.list

echo '! PGPLOT drivers created by PGPLOT_install for ifeffit: ' > $pgp_dir/drivers.list
if test $with_gif = 1 ; then
  echo ' GIDRIV 1 /GIF      '>>$pgp_dir/drivers.list
  echo ' GIDRIV 2 /VGIF     '>>$pgp_dir/drivers.list
fi
if test $with_png = 1 ; then
  echo ' PNDRIV 1 /PNG      '>>$pgp_dir/drivers.list
  echo ' PNDRIV 2 /TPNG     '>>$pgp_dir/drivers.list
fi

echo ' NUDRIV 0 /NULL     '>>$pgp_dir/drivers.list
echo ' PSDRIV 1 /PS       '>>$pgp_dir/drivers.list
echo ' PSDRIV 2 /VPS      '>>$pgp_dir/drivers.list
echo ' PSDRIV 3 /CPS      '>>$pgp_dir/drivers.list
echo ' PSDRIV 4 /VCPS     '>>$pgp_dir/drivers.list
echo ' XWDRIV 1 /XWINDOW  '>>$pgp_dir/drivers.list
echo ' XWDRIV 2 /XSERVE   '>>$pgp_dir/drivers.list

if test $do_log = 1 ;  then 
   echo "# driver.list written to  " $pgp_dir/drivers.list  >>  $logfile
   echo "# starting build"  >>  $logfile
   echo " "  >>  $logfile
fi

echo  " = Running the PGPGLOT makemake script "
cd $pgp_dir/
rm -f grfont.dat pgplot.doc pgxwin_server lib*pgplot* pgdemo*
$dir/pgplot/makemake $dir/pgplot $pgp_sys

if test $do_log = 1 ;  then 
   echo "cd  $pgp_dir/ "  >>  $logfile
   echo 'rm -f grfont.dat pgplot.doc pgxwin_server lib*pgplot* pgdemo* '>> $logfile
   echo $dir/pgplot/makemake $dir/pgplot $pgp_sys   >>  $logfile
fi


if test $with_png = 1 ; then
  sed 's|pndriv.o : ./png.h|#### pndriv.o : ./png.h|g' makefile > Tmp
  mv Tmp makefile

 if test $do_log = 1 ;  then 
    echo "# this is a kludge to fix png driver"  >>  $logfile
    echo "sed 's|pndriv.o : ./png.h|#### pndriv.o : ./png.h|g' makefile > Tmp "  >>  $logfile
    echo "mv Tmp makefile " >> $logfile
    echo "# end kludge"     >> $logfile
 fi
fi

echo  " = Running make for PGPLOT "
make FFLAGC=-O1 libpgplot.a 
make grfont.dat prog pgplot.doc pgxwin_server cpg

 if test $do_log = 1 ;  then 
    echo "make FFLAGC=-O1 libpgplot.a  " >> $logfile
    echo "make grfont.dat prog pgplot.doc pgxwin_server cpg" >> $logfile
 fi


if test $do_clean = 1 ; then
  echo " = Cleaning up and preparing for test"
  make clean
fi

cd  $dir
ls  $pgp_dir/ > Tmp_file.lis

echo " = = = = = = = = = = = = = = = = = = = = = = = = = = "
if ((grep "pgxwin_server" Tmp_file.lis >/dev/null)  && 
    (grep "rgb.txt"       Tmp_file.lis >/dev/null)  &&
    (grep "libpgplot.a"   Tmp_file.lis >/dev/null)  &&
    (grep "pgdemo1"       Tmp_file.lis >/dev/null)  &&
    (grep "grfont.dat"    Tmp_file.lis >/dev/null)) ; then
 if test $do_clean = 1 ; then
   rm -rf pgplot/
 fi
 echo " = PGPLOT appears to be correctly installed.  Good!"
 echo " ="
 echo " = Please read README.PGPLOT for more on setting up " 
 echo " = PGPLOT for your system and try running the demo"
 echo " = programs in  $pgp_dir "

else
 echo " = Uh-oh.  PGPLOT is missing some important files!"
 echo " = It looks like PGPLOT failed during building, or"
 echo " = is only partially installed."
 echo " = "
 echo " = Please consult the PGPLOT installation instructions"
 echo " = in the subdirectory  pgplot/."
 echo " = "
 echo " = After creating a drivers.list file in $pgp_dir"
 echo " = this script did the following commands:"
 echo "    cd $pgp_dir"
 echo "    $dir/pgplot/makemake $dir/pgplot $pgp_sys"
 echo "    make FFLAGC=-O1 libpgplot.a "
 echo "    make grfont.dat prog pgplot.doc pgxwin_server cpg"
 echo "    make clean"
 echo " ="
 echo " = You may want to repeat these steps by hand or "
 echo " = consult the PGPLOT installations instructions "
 echo " = in install-unix.txt"
fi

if test $do_clean = 1 ; then
 rm -f Tmp_file.lis
fi


echo " = = = = = = = = = = = = = = = = = = = = = = = = = = "
echo " "

# done