#!/usr/bin/env bash

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

# This scripts packages the SparkR source files (R and C files) and
# creates a package that can be loaded in R. The package is by default installed to
# $FWDIR/lib and the package can be loaded by using the following command in R:
#
#   library(SparkR, lib.loc="$FWDIR/lib")
#
# NOTE(shivaram): Right now we use $SPARK_HOME/R/lib to be the installation directory
# to load the SparkR package on the worker nodes.

set -o pipefail
set -e

FWDIR="$(cd "`dirname "${BASH_SOURCE[0]}"`"; pwd)"
pushd "$FWDIR" > /dev/null
. "$FWDIR/find-r.sh"

if [ -z "$VERSION" ]; then
  VERSION=`grep Version "$FWDIR/pkg/DESCRIPTION" | awk '{print $NF}'`
fi

if [ ! -f "$FWDIR/SparkR_$VERSION.tar.gz" ]; then
  echo -e "R source package file '$FWDIR/SparkR_$VERSION.tar.gz' is not found."
  echo -e "Please build R source package with check-cran.sh"
  exit -1;
fi

echo "Removing lib path and installing from source package"
LIB_DIR="$FWDIR/lib"
rm -rf "$LIB_DIR"
mkdir -p "$LIB_DIR"
"$R_SCRIPT_PATH/R" CMD INSTALL "SparkR_$VERSION.tar.gz" --library="$LIB_DIR"

# Zip the SparkR package so that it can be distributed to worker nodes on YARN
pushd "$LIB_DIR" > /dev/null
jar cfM "$LIB_DIR/sparkr.zip" SparkR
popd > /dev/null

popd