# if this file is executed, /bin/sh is used, as we don't start with #!
# this should work under ash, bash, zsh, ksh, sh style shells.

# make sure we are sourced, and not run

if test "$0" != "`echo $0 | sed s/gs3-setup\.sh//`" ; then
# if $0 contains "gs3-setup.sh" we've been run... $0 is shellname if sourced.
# One exception is zsh has an option to set it temporarily to the script name
  if test -z "$ZSH_NAME" ; then
  # we aren't using zsh
  gsdl_not_sourced=true
  fi
fi

if test -n "$gsdl_not_sourced" ; then
  echo "	Error: Make sure you source this script, not execute it. Eg:"
  echo "		$ source gs3-setup.sh"
  echo "	or"
  echo "		$ . ./gs3-setup.sh"
  echo "	not"
  echo "		$ ./gs3-setup.sh"
  unset gsdl_not_sourced
  exit 1
fi

if test ! -f gs3-setup.sh ; then
  echo "You must source the script from within the Greenstone home directory"
  exit 1
fi

GSDL3SRCHOME=`pwd`
GSDL3HOME=$GSDL3SRCHOME/web
export GSDL3HOME
export GSDL3SRCHOME
GSDLOS=`uname -s | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
# check for running bash under cygwin
if test "`echo $GSDLOS | sed 's/cygwin//'`" != "$GSDLOS" ; then
    GSDLOS=windows
fi
export GSDLOS

#change this if external tomcat
TOMCAT_HOME=$GSDL3SRCHOME/packages/tomcat

PATH=$GSDL3SRCHOME/packages/mysql/bin:$GSDL3SRCHOME/bin/script:$GSDL3SRCHOME/bin:$PATH
export PATH
MANPATH=$MANPATH:$GSDL3SRCHOME/doc/man
export MANPATH

CLASSPATH=$GSDL3HOME/WEB-INF/classes:$GSDL3SRCHOME/resources/java:$CLASSPATH
for JARFILE in $GSDL3SRCHOME/*.jar; do
    CLASSPATH=$CLASSPATH:$JARFILE
done
for JARFILE in $GSDL3SRCHOME/lib/jni/*.jar; do
    CLASSPATH=$CLASSPATH:$JARFILE
done
for JARFILE in $GSDL3HOME/WEB-INF/lib/*.jar; do
    CLASSPATH=$CLASSPATH:$JARFILE
done
for JARFILE in $TOMCAT_HOME/common/endorsed/*.jar; do
    CLASSPATH=$CLASSPATH:$JARFILE
done    
for JARFILE in $GSDL3SRCHOME/build/*.jar; do
    CLASSPATH=$CLASSPATH:$JARFILE
done

export CLASSPATH

LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GSDL3SRCHOME/lib/jni:$GSDL3SRCHOME/packages/mysql/lib/mysql
export LD_LIBRARY_PATH
## for mac
DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$GSDL3SRCHOME/lib/jni:$GSDL3SRCHOME/packages/mysql/lib/mysql
export DYLD_LIBRARY_PATH


# see if we can find java
java="java"
jfound=1
jok=1
# if JAVAHOME or JAVA_HOME is set we'll use it to determine where java lives, otherwise
#  we just hope it's on the search path
if [ "$JAVA_HOME" != "" ] ; then
    java="$JAVA_HOME/bin/java"
elif [ "$JAVAHOME" != "" ] ; then
    java="$JAVAHOME/bin/java"
    export JAVA_HOME=$JAVAHOME
else
    java=`which java 2> /dev/null`
    if [ ! -x "$java" ]; then
	echo "Failed to locate Java. You must install a java runtime environment"
	echo "(version 1.4 or greater) before installing Greenstone 3."
	jfound=0
	jok=0
    else
	export JAVA_HOME=`echo $java | sed -n 's/[\\\/]bin[\\\/]java$//p'`
    fi
fi
if [ $jfound -eq 1 ]; then
    javaversion=`$java -version 2>&1 | sed -n 's/^java version \"\(.*\)\"/\1/p'`
    jvmajor=`echo $javaversion | sed -n 's/^\([0-9]*\).*$/\1/p'`
    jvminor=`echo $javaversion | sed -n 's/^[0-9]*\.\([0-9]*\).*$/\1/p'`
    
    if [ $jvmajor -lt 1 ] ; then
	jok=0
    fi
    if [ $jvmajor -eq 1 ] && [ $jvminor -lt 4 ] ; then
	jok=0
    fi
fi

if [ $jfound -eq 1 ] && [ $jok -eq 0 ] ; then
    echo "The version of the java runtime environment you have installed is too"
    echo "old to run Greenstone 3. Please install a new version of the JRE (version"
    echo "1.4 or newer) and rerun this installation."
else
    echo "Your environment has successfully been set up to run Greenstone3"
fi

#do we need to check for perl???
# make sure perl is ok
#perl=`which perl 2> /dev/null`
# echo "perl: $perl"
#if [ ! -x "$perl" ] ; then
#    echo "Greenstone 3 requires perl in order to operate but this installation"
#    echo "could not detect perl on your system. Please ensure that perl is installed"
#    echo "and is on your search path then rerun this installation script."
#    exit 1
#fi