dev/sbt-checkstyle

#!/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.
#

# NOTE: echo "q" is needed because SBT prompts the user for input on encountering a build file
# with failure (either resolution or compilation); the "q" makes SBT quit.
ERRORS=$(echo -e "q\n" \
    | build/sbt \
        -Pkinesis-asl \
        -Pmesos \
        -Pkafka-0-8 \
        -Pkubernetes \
        -Pyarn \
        -Pflume \
        -Phive \
        -Phive-thriftserver \
        checkstyle test:checkstyle \
    | awk '{if($1~/error/)print}' \
)

if test ! -z "$ERRORS"; then
    echo -e "Checkstyle failed at following occurrences:\n$ERRORS"
    exit 1
else
    echo -e "Checkstyle checks passed."
fi