grainw

#!/usr/bin/env bash

cygwin=false
case "`uname`" in
  CYGWIN* )
    cygwin=true
    ;;
esac

if $cygwin ; then
    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
fi

# Determine command to run java
if [ -n "$JAVA_HOME" ] ; then
    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
        JAVACMD="$JAVA_HOME/jre/sh/java"
    else
        JAVACMD="$JAVA_HOME/bin/java"
    fi
    if [ ! -x "$JAVACMD" ] ; then
        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
else
    JAVACMD="java"
    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi

# Determine java options
if [ -n "$GRAIN_OPTS" ]
   then
     GRAIN_OPTS="$GRAIN_OPTS"
   else
     GRAIN_OPTS="-server -Xmx256M -Xms32M -XX:PermSize=32m -XX:MaxPermSize=128m"
  fi
JAVA_OPTS="$GRAIN_OPTS $JAVA_OPTS"

# Get target Grain version
APP_PROPS="application.properties"

if [ ! -f $APP_PROPS ]; then
    echo "Error: $APP_PROPS not found";
    exit 1;
fi

while read line; do
    case "$line" in 
        *grain.version*)
            TMP_VERSION="${line#*=}";
            read -r GRAIN_VERSION << eof
$TMP_VERSION
eof
        ;;
    esac
done < $APP_PROPS

if [ -z "$GRAIN_VERSION" ]; then
    echo "Error: unable to determine Grain version from $APP_PROPS";
    exit 1;
fi

# Check if site deps exists for current Grain version
SITE_DEPS=".site-${GRAIN_VERSION}.dep"

if [ ! -f $SITE_DEPS ]; then
    # Site deps don't exist - generate them
    ./gradlew gendeps
    if [ $? -ne 0 ]; then
       exit 1;
    fi
fi

function validateAndLaunch() {
    # Get Grain JAR from site deps
    read -r GRAIN_JAR < $SITE_DEPS
    if $cygwin ; then
        GRAIN_JAR=`cygpath --unix "$GRAIN_JAR"`
    fi

    if [ ! -f $GRAIN_JAR ]; then
        # Grain Jar doesn't exist - regenerate site deps and recompute Grain Jar
        ./gradlew gendeps
        if [ $? -ne 0 ]; then
            exit 1;
        fi
        read -r GRAIN_JAR < $SITE_DEPS
    fi

    if $cygwin ; then
        GRAIN_JAR=`cygpath --path --mixed "$GRAIN_JAR"`
    fi
    # Check if site deps are valid
    "$JAVACMD" $JAVA_OPTS -cp $GRAIN_JAR com.sysgears.grain.SiteLauncher $GRAIN_VERSION -- "$@"

    return $?
}

validateAndLaunch "$@"
STATUS=$?
if [ $STATUS -eq 2 ]; then
    ./gradlew gendeps
    if [ $? -ne 0 ]; then
       exit 1;
    fi
    validateAndLaunch "$@"
    STATUS=$?
fi

exit $STATUS