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#!/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.

if [ -z "$R_SCRIPT_PATH" ]

then

if [ ! -z "$R_HOME" ]

then

R_SCRIPT_PATH="$R_HOME/bin"

else

# if system wide R_HOME is not found, then exit

if [ ! `command -v R` ]; then

echo "Cannot find 'R_HOME'. Please specify 'R_HOME' or make sure R is properly installed."

exit 1

R_SCRIPT_PATH="$(dirname $(which R))"

echo "Using R_SCRIPT_PATH = ${R_SCRIPT_PATH}"