#!/bin/bash -e
# 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.


rat_tempdir="$(mktemp -d)"

function cleanup() {
    rm -rf "${rat_tempdir}"
}
trap cleanup EXIT

rat_output="${rat_tempdir}/$$.apache-rat.txt"

filter_untracked=0
if [ "$1" == "--local" ]; then
    filter_untracked=1
fi

java -jar /bin/apache-rat.jar -E tests/lint/rat-excludes  -d . | (grep -E "^== File" >"${rat_output}" || true)

# Rat can't be configured to ignore untracked files, so filter them.
if [ ${filter_untracked} -eq 1 ]; then
    echo "NOTE: --local flag present, filtering untracked files"
    processed_rat_output="${rat_output}-processed"
    cat ${rat_output} | sed 's/^== File: //g' | \
        python3 $(dirname "$0")/filter_untracked.py | \
        sed 's/^/== File: /g' >"${processed_rat_output}"
    rat_output="${processed_rat_output}"
fi

if grep --quiet -E "File" "${rat_output}"; then
    echo "Need to add ASF header to the following files."
    echo "----------------File List----------------"
    cat "${rat_output}"
    echo "-----------------------------------------"
    echo "Use the following steps to add the headers:"
    echo "- Create file_list.txt in your text editor"
    echo "- Copy paste the above content in file-list into file_list.txt"
    echo "- python3 tests/lint/add_asf_header.py file_list.txt"
    exit 1
fi