RandomSec/gridworks

#!/bin/sh

########################################################## 
#               Gridworks Control System                 #
##########################################################

# -------------- utility functions ----------------------

fail () {
   cat <<EOF
ERROR: $1
Type '$0 -h' for usage information.
EOF
exit 1
}

error() {
    echo "$1"
    exit 1
}

warn() {
    echo "$1"
    exit 0
}

usage() {
    cat <<EOF
Usage: $0 [options] <action>
where [options] include:

  -h print this message and exit
  
  -p <port> the port that gridworks will listen to
     default: 3333

  -i <interface> the host interface gridworks should bind to
     default: 127.0.0.1

  -w <path> path to the webapp
     default: main/webapp

  -d <path> path to the data directory
     default: OS dependent

  -m <memory> max memory heap size to use
     default: 1024M
               
  -v <level> verbosity level [from low to high: error,warn,info,debug,trace]
     default: info
  
  --debug enable JVM debugging (on port 8000)
       
  --jmx enable JMX monitoring (for jconsole and jvisualvm)
  
and <action> is one of

   build ............................ Build Gridworks      
   run .............................. Run Gridworks [default]

   test ............................. Run all Gridworks tests
   server_test ...................... Run only the server tests
   ui_test .......................... Run only the UI tests

   appengine_build <id> <version> ... Build Gridworks for Google App Engine
   appengine_run <id> <version> ..... Run Gridworks for Google App Engine in local server
   appengine_upload <id> <version>... Upload Gridworks to Google App Engine
   
   findbugs ......................... Run Findbugs against Gridworks     
   pmd .............................. Run PMD against Gridworks     
   cpd .............................. Run Copy/Paste Detection against Gridworks     
   jslint ........................... Run JSlint against Gridworks

   whitespace <extension> ........... Normalize whitespace in files with the given extension

   mac_dist <version> ............... Make MacOSX binary distribution
   windows_dist <version> ........... Make Windows binary distribution
   linux_dist <version> ............. Make Linux binary distribution
   dist <version> ................... Make all distributions

   clean ............................ Clean compiled classes
   distclean ........................ Remove all generated files
                
EOF
    exit 1
}
                
add_option() {
    OPTS="$OPTS $1"
}
                
load_configs() {
    cat $1 | egrep "^[A-Z]" | sed 's/^\(.*\)$/export \1/' > .$1
    . ./.$1
    rm ./.$1
}
    
check_macosx() {
    if ! $DARWIN ; then
        error "This action can only run on MacOSX"
    fi
}

check_downloaders() {
    CURL="`which curl 2> /dev/null`"
    WGET="`which wget 2> /dev/null`"
    
    if [ -z "$CURL"  -a   -z "$WGET" ]; then
        error "We need either 'curl' or 'wget' present in PATH to download external dependencies."
    fi
}

check_unzip() {
    UNZIP="`which unzip 2> /dev/null`"
    
    if [ -z "$UNZIP" ]; then
        error "We need 'unzip' present in PATH to expand external dependencies."
    fi
}
    
check_python() {
    PYTHON="`which python 2> /dev/null`"
    if [ -z "$PYTHON" ]; then
        error "This action requires you to have 'python' installed and present in your PATH. You can download it for free at http://www.python.org/"
    fi
    PYTHON_VERSION="`python --version 2>&1 | cut -f 2 -d ' ' | cut -f 1,2 -d .`"
    if [ "$PYTHON_VERSION" != "2.5"  -a   "$PYTHON_VERSION" != "2.6" ]; then
        error "This action requires python version 2.5.x or 2.6.x. You can download it for free at http://www.python.org/"
    fi
}

check_pywin32() {
    PYWIN32="`$PYTHON -c 'import win32api' 2>&1`"

    if [ ! -z "$PYWIN32" ]; then
        error "This action requires you to have 'pywin32' windows extensions for Python installed on your machine. You can download it for free at http://sourceforge.net/projects/pywin32/"
    fi
}

check_running() {
    check_downloaders
    URL="http://${GRIDWORKS_HOST}:${GRIDWORKS_PORT}/"
    
    if [ "$CURL" ]; then
        NOT_RUNNING=`curl -s $URL > /dev/null || echo not_running`
    elif [ "$WGET" ]; then
        NOT_RUNNING=`wget -q -O - $URL > /dev/null || echo not_running`
    fi    
}

get_version() {
    VERSION="$1"
    
    if [ -z "$VERSION" ]; then
        fail "Must specify a version number"
    fi
    
    if [[ "${VERSION}" == *.*.*.* ]]; then
        FULL_VERSION="${VERSION}"
    elif [[ "${VERSION}" == *.*.* ]]; then
        FULL_VERSION="${VERSION}.0"
    elif [[ "${VERSION}" == *.* ]]; then
        FULL_VERSION="${VERSION}.0.0"
    else
        FULL_VERSION="${VERSION}.0.0.0"
    fi
    
    NUM_VERSION=`echo $VERSION | sed 's/[a-zA-Z]//g'`
}

get_revision() {
    if [ -d ".svn" ]; then
        INFO=`svn info`
    elif [ -d ".git" ]; then
        INFO=`git svn info`
    else
        error "cannot obtain revision, exiting!"
    fi

    REVISION=`echo $INFO | sed 's/.*Revision: /r/' | sed 's/ .*//'`
}
    
download() {
    URL=$1
    DEST=$2
    
    check_downloaders
    
    if [ "$CURL" ]; then
        curl -L -o $DEST $URL || exit "Error while downloading $URL"
    elif [ "$WGET" ]; then
        wget -O $DEST $URL || error "Error while downloading $URL"
    fi
}

tool_download() {
    URL=$1
    FILE=$2
    DIR=$3
    
    cd $GRIDWORKS_TOOLS_DIR
        if [ ! -f "$FILE" ]; then
            download $URL $FILE
        fi
        if [ ! -d "$DIR" ]; then
            if [ -z "`echo $FILE | sed 's@.*.tar.gz$@@' | sed 's@.*.tgz$@@'`" ]; then
                tar xzf $FILE || error "Error while expanding $FILE"
            fi
            if [ -z "`echo $FILE | sed 's@.*.zip$@@'`" ]; then
                check_unzip
                $UNZIP -q $FILE || error "Error while expanding $FILE"
            fi
        fi
    cd ..
}

load_data() {
    FILE=$1
    NAME=$2
    URL="http://${GRIDWORKS_HOST}:${GRIDWORKS_PORT}/command/create-project-from-upload"
    CURL="`which curl 2> /dev/null`"
    
    if [ -z "$CURL" ]; then
        error "We need 'curl' present in PATH to upload data to gridworks."
    else
        curl -s -F "project-file=@$FILE" -F "project-name=$NAME" $URL > /dev/null || error "Error while uploading $FILE to Gridworks"
        echo "Loaded $FILE as $NAME"
    fi
}

# ----------------------------------------------------------------------------------------------

build_prepare() {
    if [ ! -d $GRIDWORKS_BUILD_DIR ]; then 
        mkdir $GRIDWORKS_BUILD_DIR || error "Error while making directory $GRIDWORKS_BUILD_DIR"
    fi
}

dist_prepare() {
    if [ ! -d $GRIDWORKS_DIST_DIR ]; then 
        mkdir $GRIDWORKS_DIST_DIR || error "Error while making directory $GRIDWORKS_DIST_DIR"
    fi
}

tools_prepare() {
    if [ ! -d $GRIDWORKS_TOOLS_DIR ]; then 
        mkdir $GRIDWORKS_TOOLS_DIR || error "Error while making directory $GRIDWORKS_TOOLS_DIR"
    fi
}
                        
ant_prepare() {
    tools_prepare

    ANT_URL="http://archive.apache.org/dist/ant/binaries/apache-ant-1.8.1-bin.tar.gz"
    ANT_FILE=`echo $ANT_URL | sed 's|.*/||'`
    ANT_DIR="apache-ant-1.8.1"
    
    ANT="`which ant 2> /dev/null`"
    if [ -z "$ANT" ]; then
        if [ -z "$ANT_HOME" ]; then
            cd $GRIDWORKS_TOOLS_DIR
                if [ ! -f "$ANT_FILE" ]; then
                    download $ANT_URL $ANT_FILE
                fi
                if [ ! -d "$ANT_DIR" ]; then
                    tar xzf $ANT_FILE -C . || error "Error while expanding $ANT_FILE"
                fi
                export ANT_HOME="`pwd`/$ANT_DIR"
                if $CYGWIN ; then
                    export ANT_HOME=`cygpath --unix "$ANT_HOME"`
                fi
            cd ..
        fi
        ANT="$ANT_HOME/bin/ant"
    fi
}

appengine_prepare() {
    if [ -z "$APPENGINE_HOME" ]; then
        error "You have to have the APPENGINE_HOME environment variable set and pointing to the local installation of the Google AppEngine SDK."
    elif [ ! -f "$APPENGINE_HOME/bin/appcfg.sh" ]; then
        error "Environment variable APPENGINE_HOME is set to '$APPENGINE_HOME' which doesn't point to a valid Google App Engine SDK."
    fi
    APPENGINE="$APPENGINE_HOME/bin/appcfg.sh"
    APPENGINE_LOCAL="$APPENGINE_HOME/bin/dev_appserver.sh"
    
    ANT_PARAMS="$ANT_PARAMS -Dappengine.sdk.dir=$APPENGINE_HOME"
}

launch4j_prepare() {
    tools_prepare
    
    LAUNCH4J_URL="http://downloads.sourceforge.net/project/launch4j/launch4j-3/3.0.1/launch4j-3.0.1-macosx.tgz"
    LAUNCH4J_FILE=`echo $LAUNCH4J_URL | sed 's|.*/||'`
    LAUNCH4J_DIR="launch4j"
    
    tool_download $LAUNCH4J_URL $LAUNCH4J_FILE $LAUNCH4J_DIR
}
    
jarbundler_prepare() {
    tools_prepare
    
    JARBUNDLER_URL="http://www.informagen.com/JarBundler/dist/jarbundler.tar.gz"
    JARBUNDLER_FILE=`echo $JARBUNDLER_URL | sed 's|.*/||'`
    JARBUNDLER_DIR="jarbundler-2.1.0"

    tool_download $JARBUNDLER_URL $JARBUNDLER_FILE $JARBUNDLER_DIR
}
   
virtualenv_prepare() {
    check_python

    VIRTUALENV_URL="http://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.4.6.tar.gz"
    VIRTUALENV_FILE="virtualenv-1.4.6.tar.gz"
    VIRTUALENV_DIR="virtualenv-1.4.6"

    tool_download $VIRTUALENV_URL $VIRTUALENV_FILE $VIRTUALENV_DIR
    
    PYTHON_LOCAL="$GRIDWORKS_TOOLS_DIR/python"
    if $CYGWIN ; then
        PYTHON_LOCAL="${PYTHON_LOCAL}_win"
    fi
    
    if [ ! -d "$PYTHON_LOCAL" ]; then
        $PYTHON $GRIDWORKS_TOOLS_DIR/$VIRTUALENV_DIR/virtualenv.py $PYTHON_LOCAL
    fi
    
    PYTHON_HOME="`pwd`/$PYTHON_LOCAL"

    if $CYGWIN ; then
        PYTHON="$PYTHON_HOME/Scripts/python.exe"
        PYTHON_INSTALL="$PYTHON_HOME/Scripts/easy_install.exe"
    else 
        PYTHON="$PYTHON_HOME/bin/python"
        PYTHON_INSTALL="$PYTHON_HOME/bin/easy_install"
    fi
}
    
windmill_prepare() {
    WINDMILL="`which windmill 2> /dev/null`"
    if [ -z "$WINDMILL" ]; then
        check_python
        tools_prepare
        virtualenv_prepare

        if $CYGWIN ; then
            check_pywin32
            WINDMILL="$PYTHON_HOME/Scripts/windmill.exe"
        else 
            WINDMILL="$PYTHON_HOME/bin/windmill"
        fi
        
        if [ ! -f "$WINDMILL" ]; then
            "$PYTHON_INSTALL" windmill
        fi
    fi    
}

findbugs_prepare() {
    tools_prepare
    
    FINDBUGS_URL="http://downloads.sourceforge.net/project/findbugs/findbugs/1.3.9/findbugs-1.3.9.tar.gz"
    FINDBUGS_FILE=`echo $FINDBUGS_URL | sed 's|.*/||'`
    FINDBUGS_DIR="findbugs-1.3.9"

    tool_download $FINDBUGS_URL $FINDBUGS_FILE $FINDBUGS_DIR
}

pmd_prepare() {
    tools_prepare
    
    PMD_URL="http://downloads.sourceforge.net/project/pmd/pmd/4.2.5/pmd-bin-4.2.5.zip"
    PMD_FILE="pmd-bin-4.2.5.zip"
    PMD_DIR="pmd-4.2.5"

    tool_download $PMD_URL $PMD_FILE $PMD_DIR
}

jslint_prepare() {
    tools_prepare
    
    JSLINT_URL="http://jslint4java.googlecode.com/files/jslint4java-1.3.3-dist.zip"
    JSLINT_FILE="jslint4java-1.3.3-dist.zip"
    JSLINT_DIR="jslint4java-1.3.3"

    tool_download $JSLINT_URL $JSLINT_FILE $JSLINT_DIR
}
            
# ----------------------------------------------------------------------------------------------

ant() {
    ant_prepare   
    
    #export ANT_OPTS="-Xmx1024M"
    
    "$ANT" -f build.xml $ANT_PARAMS -Dversion="$VERSION" -Dnum_version="$NUM_VERSION" -Dfull_version="$FULL_VERSION" -Drevision="$REVISION" $1 || error "Error while running ant task '$1'"
}

# ----------------------------------------------------------------------------------------------

dist() {
    mac_dist $1
    windows_dist $1
    linux_dist $1
    
    echo "All distributions were built and are located at $GRIDWORKS_DIST_DIR"
    echo 
    echo "Upload them to the distibution site, then prepend the GridworksReleases array at"
    echo
    echo "   http://code.google.com/p/freebase-gridworks/source/browse/support/releases.js"
    echo
    echo "with"
    echo 
    echo "    {"
    echo "        \"description\": \"Gridworks ${VERSION}\","
    echo "        \"version\": \"${VERSION}\","
    echo "        \"revision\": \"${REVISION}\""
    echo "    },"
    echo
}

windows_dist() {
    check_macosx
    dist_prepare
    get_version $1
    get_revision

    launch4j_prepare
    
    ANT_PARAMS="-Dlaunch4j.dir=${GRIDWORKS_TOOLS_DIR}/${LAUNCH4J_DIR}"
    ant windows
}

linux_dist() {
    dist_prepare
    get_version $1
    get_revision
    
    ant linux
}
    
mac_dist() {
    check_macosx
    dist_prepare
    get_version $1
    get_revision

    jarbundler_prepare
    
    ANT_PARAMS="-Djarbundler.dir=${GRIDWORKS_TOOLS_DIR}/${JARBUNDLER_DIR}"
    ant mac

    mkdir -p "$GRIDWORKS_BUILD_DIR/mac/.background"
    cp graphics/dmg_background/dmg_background.png "$GRIDWORKS_BUILD_DIR/mac/.background/dmg_background.png"
    
    SIZE=60
    
    if [ -f "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg" ]; then
        rm "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg"
    fi
    
    TITLE="Gridworks $VERSION"
    echo "Building MacOSX DMG for $TITLE"
    hdiutil create -srcfolder "$GRIDWORKS_BUILD_DIR/mac" -volname "$TITLE" -fs HFS+ -fsargs "-c c=64,a=16,e=16" -format UDRW -size ${SIZE}m "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg" || error "can't create empty DMG"
    DEVICE=`hdiutil attach -readwrite -noverify -noautoopen "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg" | egrep '^/dev/' | sed 1q | awk '{print $1}'`
    hdiutil attach "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg" || error "Can't attach temp DMG"
    
    echo '
       tell application "Finder"
         tell disk "'$TITLE'"
            open
            set current view of container window to icon view
            set toolbar visible of container window to false
            set statusbar visible of container window to false
            set the bounds of container window to {200, 100, 760, 460}
            set theViewOptions to the icon view options of container window
            set arrangement of theViewOptions to not arranged
            set icon size of theViewOptions to 100
            set background picture of theViewOptions to file ".background:'dmg_background.png'"
            make new alias file at container window to POSIX file "/Applications" with properties {name:"Applications"}
            set position of item "'Gridworks'" of container window to {170, 175}
            set position of item "Applications" of container window to {380, 175}
            close
            open               
            update without registering applications
            delay 2            
            eject
         end tell
       end tell
    ' | osascript || error "Error running applescript"
    
    sync
    sync
    hdiutil detach $DEVICE
    
    if [ -f "$GRIDWORKS_DIST_DIR/gridworks-$VERSION-$REVISION.dmg" ]; then
        rm "$GRIDWORKS_DIST_DIR/gridworks-$VERSION-$REVISION.dmg"
    fi
    
    hdiutil convert "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg" -format UDZO -imagekey zlib-level=9 -o "$GRIDWORKS_DIST_DIR/gridworks-$VERSION-$REVISION.dmg" || error "Error compressing DMG"
    hdiutil internet-enable -yes "$GRIDWORKS_DIST_DIR/gridworks-$VERSION-$REVISION.dmg" || error "Error internet-enabling DMG"
    
    rm -f "$GRIDWORKS_BUILD_DIR/temp_gridworks.dmg"
}

test() {
    server_test $1
    ui_test $1 
}

ui_test() {
    INTERACTIVE=$1
    
    windmill_prepare
    
    GRIDWORKS_DATA_DIR="${TMPDIR}/gridworks-tests"
    
    add_option "-Dgridworks.headless=true"
    
    run fork
    
    echo "Waiting for Gridworks to load..."
    sleep 5
    check_running
    if [ ! -z "$NOT_RUNNING" ]; then
        sleep 10
    fi
    echo "... proceed with the tests."
    echo ""
    
    load_data "$GRIDWORKS_TEST_DIR/data/food.csv" "Food"
    sleep 3
    echo ""
    
    echo "Starting Windmill..."
    if [ -z "$INTERACTIVE" ]; then
        "$WINDMILL" firefox firebug loglevel=WARN http://${GRIDWORKS_HOST}:${GRIDWORKS_PORT}/ jsdir=$GRIDWORKS_TEST_DIR/client/src exit
    else
        "$WINDMILL" firefox firebug loglevel=WARN http://${GRIDWORKS_HOST}:${GRIDWORKS_PORT}/
    fi
    
    echo ""
    echo "Killing Gridworks"
    kill -9 $GRIDWORKS_PID
    echo "Cleaning up"
    rm -rf $GRIDWORKS_DATA_DIR
}

server_test() {
    ant build_tests
    echo ""
    
    CLASSPATH="$GRIDWORKS_TEST_DIR/server/classes${SEP}$GRIDWORKS_WEBAPP/WEB-INF/classes${SEP}$GRIDWORKS_CLASSES_DIR${SEP}$GRIDWORKS_TEST_DIR/server/lib/*${SEP}$GRIDWORKS_LIB_DIR/*${SEP}$GRIDWORKS_WEBAPP/WEB-INF/lib/*"

    if [ -z "$1" ]; then
        TESTS="-excludegroups broken $GRIDWORKS_TEST_DIR/server/conf/tests.xml"
    else 
        TESTS="-testclass $1"
    fi
    
    RUN_CMD="$JAVA -cp $CLASSPATH $OPTS org.testng.TestNG -d $GRIDWORKS_BUILD_DIR/server_tests -listener org.testng.reporters.DotTestListener $TESTS"
    
    #echo "$RUN_CMD"
    #echo ""
    
    $RUN_CMD || error "Failed passing server tests"
}

appengine_build() {
    appengine_prepare
    get_revision
    
    ANT_PARAMS="-Dappengine.sdk.dir=${APPENGINE_HOME}"
    if [ -z "$1" ]; then
        error "Must specify the application id"
    else
        ANT_PARAMS="$ANT_PARAMS -Dappengine.app_id=$1"
    fi
    
    if [ "$2" ]; then
        ANT_PARAMS="$ANT_PARAMS -Dappengine.version=$2"
    fi
        
    ant prepare_webapp_appengine
}
       
appengine_upload() {
    appengine_build $1 $2
    "$APPENGINE" update "$GRIDWORKS_BUILD_DIR/appengine"
}

appengine_run() {
    appengine_build $1 $2
    "$APPENGINE_LOCAL" "$GRIDWORKS_BUILD_DIR/appengine"
}

run() {
    FORK=$1
    
    if [ ! -d $GRIDWORKS_CLASSES_DIR ]; then
        IS_JAR=`ls $GRIDWORKS_LIB_DIR | grep gridworks`
        if [ -z "$IS_JAR" ]; then
            ant build
            echo ""
        fi
    fi
    
    check_running
    
    if [ -z "$NOT_RUNNING" ]; then
        warn "Gridworks is already running."
    fi
    
    if [ -d $GRIDWORKS_CLASSES_DIR ]; then
        add_option "-Dgridworks.autoreloading=true"
    fi

    if $DARWIN ; then
        add_option "-Xdock:name=Gridworks -Xdock:icon=graphics/icon/gridworks.icns"
    fi
    
    if [ "$GRIDWORKS_DATA_DIR" ]; then
        add_option "-Dgridworks.data_dir=$GRIDWORKS_DATA_DIR"
    fi
                
    CLASSPATH="$GRIDWORKS_CLASSES_DIR${SEP}$GRIDWORKS_LIB_DIR/*"

    RUN_CMD="$JAVA -cp $CLASSPATH $OPTS com.metaweb.gridworks.Gridworks"

    #echo "$RUN_CMD"
    #echo ""
  
    echo "Starting Gridworks at 'http://${GRIDWORKS_HOST}:${GRIDWORKS_PORT}/'"
    echo ""

    if [ -z "$FORK" ]; then
        exec $RUN_CMD
    else
        $RUN_CMD &
        GRIDWORKS_PID="$!"
    fi
}
    
findbugs() {
    findbugs_prepare
    
    ANT_PARAMS="-Dfindbugs.dir=${GRIDWORKS_TOOLS_DIR}/${FINDBUGS_DIR}"
    ant findbugs
    
    open "$GRIDWORKS_BUILD_DIR/reports/findbugs.html"
}    

pmd() {
    pmd_prepare
    
    ANT_PARAMS="-Dpmd.dir=${GRIDWORKS_TOOLS_DIR}/${PMD_DIR}"
    ant pmd
    
    open "$GRIDWORKS_BUILD_DIR/reports/pmd.html"
}    

cpd() {
    pmd_prepare
    
    ANT_PARAMS="-Dpmd.dir=${GRIDWORKS_TOOLS_DIR}/${PMD_DIR}"
    ant cpd

    open "$GRIDWORKS_BUILD_DIR/reports/cpd.txt"
}    

jslint() {
    jslint_prepare

    ANT_PARAMS="-Djslint.dir=${GRIDWORKS_TOOLS_DIR}/${JSLINT_DIR}"
    ant jslint

    open "$GRIDWORKS_BUILD_DIR/reports/jslint.txt"
}

whitespace() {
    [ $# -gt 0 ] || usage
    
    for i in `find . -name *.$1`; do
        # expand tabs to spaces
        expand -t 4 < $i > $i.1
        
        # convert DOS to UNIX newlines
        tr -d '\r' < $i.1 > $i.2
            
        rm $i $i.1
        mv $i.2 $i
    done
}   
    
# -------------------------- script -----------------------------
    
# ----- Normalize the current directory -------------------------

cd `dirname $0`

# ----- Default values ------------------------------------------

OPTS=""

# ---- OS-specific support --------------------------------------

SYSTEM=`uname`

CYGWIN=false
DARWIN=false
case "$SYSTEM" in
  CYGWIN*) CYGWIN=true ;;
  Darwin*) DARWIN=true ;;
esac

SEP=":" 
if $CYGWIN ; then
    SEP=";" 
fi

# ----- Load configurations -------------------------------------

load_configs gridworks.ini

# ----- Make sure there is an appropriate java environment is available -------------

if $DARWIN ; then
    if [ -z "$JAVA_HOME" ]; then
        # Mac OS X defaults to Java 5. So update JAVA_HOME unless the user manually set it.
        export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home"
    fi
fi

JAVA="`which java 2> /dev/null`"
if [ -z "$JAVA" ]; then
    if [ "$JAVA_HOME" ]; then
        JAVA="$JAVA_HOME/bin/java"
        if [ ! -f "$JAVA" ] ; then
            error "Could not find the 'java' executable at '$JAVA', are you sure your JAVA_HOME environment variable is pointing to a proper java installation?"
        fi
    else
        error "The 'java' command should be in your path or the 'JAVA_HOME' environment variable should be set"
    fi
fi

JAVA_VERSION=`$JAVA -version 2>&1 | grep version | cut -d ' ' -f 3 | egrep ^\"1\.6`
if [ -z "$JAVA_VERSION" ]; then
    error "Gridworks requires Java version 6 or later. If you have multiple versions of Java installed, please set JAVA_HOME to the correct version."
fi

# ----- Parse the command line args ------------------------------------------

while [ $# -ne 0 ] ; do
  case "$1" in
    -h) usage;;
    -p) shift; GRIDWORKS_PORT="$1"; shift; continue;;
    -i) shift; GRIDWORKS_HOST="$1"; shift; continue;;
    -w) shift; GRIDWORKS_WEBAPP="$1"; shift; continue;;
    -d) shift; GRIDWORKS_DATA_DIR="$1"; shift; continue;;
    -m) shift; GRIDWORKS_MEMORY="$1"; shift; continue;;
    -v) shift; GRIDWORKS_VERBOSITY="$1"; shift; continue;;
    --debug) shift; add_option '-Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n'; continue;;
    --jmx) shift; add_option '-Dcom.sun.management.jmxremote'; continue;;
    -*) fail "Invalid option: $1";;
    *) break;;
  esac
done

if [ $# -ne 0 ]; then
    ACTION=$1; shift
fi

if [ -z "$ACTION" ]; then
    ACTION="run"
fi

# ----- Verify and Set Required Environment Variables -------------------------

if [ -z "$JAVA_OPTIONS" ]; then
  JAVA_OPTIONS=""
fi
add_option "$JAVA_OPTIONS"

if [ -z "$GRIDWORKS_MEMORY" ]; then
    GRIDWORKS_MEMORY="1024M"
fi
add_option "-Xms256M -Xmx$GRIDWORKS_MEMORY -Dgridworks.memory=$GRIDWORKS_MEMORY"

if [ -z "$GRIDWORKS_PORT" ]; then
    GRIDWORKS_PORT="3333"
fi
add_option "-Dgridworks.port=$GRIDWORKS_PORT"

if [ -z "$GRIDWORKS_HOST" ]; then
    GRIDWORKS_HOST="127.0.0.1"
fi
add_option "-Dgridworks.host=$GRIDWORKS_HOST"

if [ -z "$GRIDWORKS_WEBAPP" ]; then
    GRIDWORKS_WEBAPP="main/webapp"
fi
add_option "-Dgridworks.webapp=$GRIDWORKS_WEBAPP"

if [ -z "$GRIDWORKS_TEST_DIR" ]; then
    GRIDWORKS_TEST_DIR="main/tests"
fi

if [ -z "$GRIDWORKS_CLASSES_DIR" ]; then
    GRIDWORKS_CLASSES_DIR="server/classes"
fi

if [ -z "$GRIDWORKS_LIB_DIR" ]; then
    GRIDWORKS_LIB_DIR="server/lib"
fi

if [ -z "$GRIDWORKS_BUILD_DIR" ]; then
    GRIDWORKS_BUILD_DIR="build"
fi

if [ -z "$GRIDWORKS_TOOLS_DIR" ]; then
    GRIDWORKS_TOOLS_DIR="tools"
fi

if [ -z "$GRIDWORKS_DIST_DIR" ]; then
    GRIDWORKS_DIST_DIR="dist"
fi

if [ -z "$GRIDWORKS_VERBOSITY" ]; then
    GRIDWORKS_VERBOSITY="info"
fi
add_option "-Dgridworks.verbosity=$GRIDWORKS_VERBOSITY"

if [ -z "$JYTHONPATH" ]; then
    JYTHONPATH="$GRIDWORKS_WEBAPP/WEB-INF/lib/jython"
else
    JYTHONPATH="$GRIDWORKS_WEBAPP/WEB-INF/lib/jython${SEP}$JYTHONPATH"
fi
add_option "-Dpython.path=$JYTHONPATH"

# ----- Respond to the action given --------------------------------------------

case "$ACTION" in
  build) build_prepare; ant build;;
  clean) ant clean;;
  whitespace) whitespace $1;;
  distclean) ant distclean;;
  test) test $1;;  
  tests) test $1;;  
  ui_test) ui_test $1;;  
  ui_tests) ui_test $1;;  
  server_test) server_test $1;;  
  server_tests) server_test $1;;  
  findbugs) findbugs;;  
  pmd) pmd;;  
  cpd) cpd;;  
  jslint) jslint;;  
  run) run;;  
  appengine_build) appengine_build $1 $2;;
  appengine_run) appengine_run $1 $2;;
  appengine_upload) appengine_upload $1 $2;;
  mac_dist) mac_dist $1;;
  windows_dist) windows_dist $1;;
  linux_dist) linux_dist $1;;
  dist) dist $1;;
  *) usage; ;;
esac