#!/bin/sh
# This program is Free Software under the GNU GPL (>=v2).
# create a new LOCATION from a raster data set
# Cited from the book:
#   Markus Neteler and Helena Mitasova:
#   Open Source GIS: A GRASS GIS Approach.
#   Kluwer Academic Publishers, Boston, Dordrecht, 464 pp,
#   ISBN: 1-4020-7088-8, http://mpa.itc.it/grasstutor/

#variables to customize:
GISBASE=/usr/local/grass5
GISDBASE=/usr/local/share/grassdata
MAP=$1
LOCATION=$2

#nothing to change below:
if [ $# -lt 2 ] ; then
 echo "Script to create a new LOCATION from a raster data set"
 echo "Usage:"
 echo "   create_location.sh rasterfile location_name"
 exit 1
fi

#generate temporal LOCATION:
TEMPDIR=$$.tmp
mkdir -p $GISDBASE/$TEMPDIR/temp

#save existing $HOME/.grassrc5
if test -e $HOME/.grassrc5 ; then
   mv $HOME/.grassrc5 /tmp/$TEMPDIR.grassrc5
fi

echo "LOCATION_NAME: $TEMPDIR"  >  $HOME/.grassrc5
echo "MAPSET: temp"                 >> $HOME/.grassrc5
echo "DIGITIZER: none"              >> $HOME/.grassrc5
echo "GISDBASE: $GISDBASE"          >> $HOME/.grassrc5
export GISBASE=$GISBASE
export GISRC=$HOME/.grassrc5
export PATH=$PATH:$GISBASE/bin:$GISBASE/scripts

# import raster map into new location:
r.in.gdal -oe in=$MAP out=$MAP location=$LOCATION
if [ $? -eq 1 ] ; then
  echo "An error occured. Stop."
  exit 1
fi

#restore saved $HOME/.grassrc5
if test -f /tmp/$TEMPDIR.grassrc5 ; then
   mv /tmp/$TEMPDIR.grassrc5 $HOME/.grassrc5
fi

echo "Now launch GRASS with:"
echo " grass5 $GISDBASE/$LOCATION/PERMANENT"