#!/bin/sh

CDPATH=""
SCRIPT="$0"

# SCRIPT may be an arbitrarily deep series of symlinks. Loop until we have the concrete path.
while [ -h "$SCRIPT" ] ; do
  ls=`ls -ld "$SCRIPT"`
  # Drop everything prior to ->
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
    SCRIPT="$link"
  else
    SCRIPT=`dirname "$SCRIPT"`/"$link"
  fi
done

# determine elasticsearch home
ES_HOME=`dirname "$SCRIPT"`/..

# make ELASTICSEARCH_HOME absolute
ES_HOME=`cd "$ES_HOME"; pwd`

# Sets the default values for elasticsearch variables used in this script
if [ -z "$CONF_DIR" ]; then
  CONF_DIR="/etc/elasticsearch"

  if [ -z "$CONF_FILE" ]; then
    CONF_FILE="$CONF_DIR/elasticsearch.yml"
  fi
fi

if [ -z "$CONF_FILE" ]; then
  CONF_FILE="/etc/elasticsearch/elasticsearch.yml"
fi

# The default env file is defined at building/packaging time.
# For a deb package, the value is "/etc/default/elasticsearch".
ES_ENV_FILE="/etc/default/elasticsearch"

# If an include is specified with the ES_INCLUDE environment variable, use it
if [ -n "$ES_INCLUDE" ]; then
    ES_ENV_FILE="$ES_INCLUDE"
fi

# Source the environment file
if [ -n "$ES_ENV_FILE" ]; then

  # If the ES_ENV_FILE is not found, try to resolve the path
  # against the ES_HOME directory
  if [ ! -f "$ES_ENV_FILE" ]; then
      ES_ENV_FILE="$ELASTIC_HOME/$ES_ENV_FILE"
  fi

  . "$ES_ENV_FILE"
  if [ $? -ne 0 ]; then
      echo "Unable to source environment file: $ES_ENV_FILE" >&2
      exit 1
  fi
fi

if [ -x "$JAVA_HOME/bin/java" ]; then
    JAVA=$JAVA_HOME/bin/java
else
    JAVA=`which java`
fi

# real getopt cannot be used because we need to hand options over to the PluginManager
while [ $# -gt 0 ]; do
  case $1 in
    -D*=*)
      properties="$properties \"$1\""
      ;;
    -D*)
      var=$1
      shift
      properties="$properties \"$var\"=\"$1\""
      ;;
    *)
      args="$args \"$1\""
  esac
  shift
done

# check if properties already has a config file or config dir
if [ -e "$CONF_DIR" ]; then
  case "$properties" in
    *-Des.default.path.conf=*|*-Des.path.conf=*)
    ;;
    *)
      properties="$properties -Des.default.path.conf=\"$CONF_DIR\""
    ;;
  esac
fi

if [ -e "$CONF_FILE" ]; then
  case "$properties" in
    *-Des.default.config=*|*-Des.config=*)
    ;;
    *)
      properties="$properties -Des.default.config=\"$CONF_FILE\""
    ;;
  esac
fi

export HOSTNAME=`hostname -s`

eval "$JAVA" $JAVA_OPTS $ES_JAVA_OPTS -Xmx64m -Xms16m -Delasticsearch -Des.path.home=\""$ES_HOME"\" $properties -cp \""$ES_HOME/lib/*"\" org.elasticsearch.plugins.PluginManager $args