#!/bin/bash
#
# script to download and install SEATREE from tar ball
#
# See  http://geosys.usc.edu/projects/seatree/wiki/download
#
# for access to the developer version via SVN
#
#
#
tf=seatree.recent.tgz		# tar file name
source=http://geodynamics.usc.edu/~becker/software/$tf # URL
#
pname=`basename $0`

echo 
echo $pname: automated install of most recent SEATREE version
echo 
echo $pname: see  http://geosys.usc.edu/projects/seatree/wiki/download
echo $pname: for help and documentation
echo 

if [ `pwd | grep seatree | wc -l` -gt 0 ];then
    echo $pname: we appear to be in a directory with a previous seatree install
    echo $pname: please change into a directory where you store programs 
    echo $pname: but not the seatree install directory itself
    echo $pname: \"cd ..\" will probably do
    exit
fi

# 
#


if [ -s $tf ];then
    echo $pname: using old $tf file in this directory
    echo $pname: if you want new download, delete this file
else
    echo $pname: downloading tar ball from $source
    wget $source
fi


if [ ! -s $tf ];then
    echo $pname: download did not work, refer to the SEATREE web page
    echo $pname: for manual install
    exit
fi

tdir=`gunzip -c seatree.recent.tgz | tar tv |  head -1 | gawk '{print($(NF))}'`
echo $pname: expanding into $tdir

if [ -s $tdir ];then
    echo
    echo $pname: existing seatree directory $tdir will get overwritten
    echo $pname: proceed\? y/n
    read action 
    if [[ "$action" = "n" ]];then
	echo $pname: exiting because of user input
	exit
    fi
fi


echo $pname: expanding tar file...
gunzip -c $tf  | tar x

echo
echo $pname: installing in $tdir by running configure script...
echo
cd $tdir
./configure
cd ..


echo
echo $pname: done, you might want to delete $tf
echo