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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.
#

SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
SPARK_ROOT_DIR="$(dirname $SCRIPT_DIR)"
LINT_R_REPORT_FILE_NAME="$SPARK_ROOT_DIR/dev/lint-r-report.log"


if ! type "Rscript" > /dev/null; then
  echo "ERROR: You should install R"
  exit
fi

`which Rscript` --vanilla "$SPARK_ROOT_DIR/dev/lint-r.R" "$SPARK_ROOT_DIR" | tee "$LINT_R_REPORT_FILE_NAME"

NUM_LINES=`wc -l < "$LINT_R_REPORT_FILE_NAME" | awk '{print $1}'`
if [ "$NUM_LINES" = "0" ] ; then
  lint_status=0
  echo "lintr checks passed."
else
  lint_status=1
  echo "lintr checks failed."
fi

exit "$lint_status"