root/greenstone3/trunk/gs3-setup.sh

# 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.

#the purpose of this file is to check/set up the environment for greenstone3
#sorts out:
#  - gsdl3home
#  - java

# java_min_version gets passed to search4j as the minimum java version
java_min_version=1.4.0_00


function testSource(){

  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

}

function setGS3ENV() {

  echo "Setting up your environment for Greenstone3"
  ## main greenstone environment variables ##
  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
  echo "  - Exported GSDL3HOME, GSDL3SRCHOME and GSDLOS"

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


  ## adjustments to users (existing) environment ##

  #PATH
  if [ `isinpath "$PATH" "$GSDL3SRCHOME/bin"` == "false" ]; then
    PATH=$GSDL3SRCHOME/bin/script:$GSDL3SRCHOME/bin:$PATH
    export PATH
    MANPATH=$MANPATH:$GSDL3SRCHOME/doc/man
    export MANPATH
    echo "  - Adjusted PATH"
  else
    echo "  - PATH already correct"
  fi

  #CLASSPATH
  if [ `isinpath "$CLASSPATH" "$GSDL3HOME/WEB-INF/classes"` == "false" ]; then
    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
    echo "  - Adjusted CLASSPATH"
  else
    echo "  - CLASSPATH already correct"
  fi

  #LD_LIBRARY_PATH
  if [ `isinpath "$LD_LIBRARY_PATH" "$GSDL3SRCHOME/lib/jni"` == "false" ]; then
    LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GSDL3SRCHOME/lib/jni
    export LD_LIBRARY_PATH
    DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$GSDL3SRCHOME/lib/jni
    export DYLD_LIBRARY_PATH
    echo "  - Adjusted LD_LIBRARY_PATH"
  else
    echo "  - LD_LIBRARY_PATH already correct"
  fi

  #ant
  which ant &> /dev/null
  if [ "$?" != "0" ]; then
      ANT_HOME=$GSDL3SRCHOME/packages/ant
      PATH=$ANT_HOME/bin:$PATH
    echo "  - Setup ant"
  else
    echo "  - Ant already setup"
  fi

  echo
}

function checkJava() {
  echo "Checking Java"

  HINT=`pwd`/packages/jre
  FOUNDJAVAHOME=`bin/search4j -p $HINT -m $java_min_version`
  if [ "$?" != "0" ]; then

    #java is not set up already
    if [ "$?" == "0" ]; then
      #bundled java exists, set up
      export JAVA_HOME=$FOUNDJAVAHOME
      echo "  - Set (exported) JAVA_HOME to $FOUNDJAVAHOME"
    else
      #no java exists
      echo "  - Failed to locate java ($java_min_version or greater)"
      bin/search4j &> /dev/null;
      if [ "$?" == "0" ]; then echo "  (It looks like you hava java but it's too old)"; fi
      echo "  - Please set JAVA_HOME or JRE_HOME to point to an appropriate java"
      echo "    And add JAVA_HOME/bin or JRE_HOME/bin to your PATH"
    fi

  else

    #java is already set up
    echo "  - Found java at: $FOUNDJAVAHOME"

  fi
  echo
}

function pauseAndExit(){
 echo -n "Please press any key to continue... "
 read 
}

function isinpath() {
  for file in `echo $1 | sed 's/:/ /g'`; do
    if [ "$file" == "$2" ]; then
      echo true
      return
    fi
  done
  echo false
}

echo
testSource
setGS3ENV
checkJava