#!/bin/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.


# Prepare clang-tidy docker image.
setglobal TAG = "mesos-tidy-$[date +%s]-$RANDOM"
# TODO(vinod): Instead of building Docker images on the fly host the
# images on DockerHub and use them.
docker build --no-cache=true -t $TAG mesos-tidy/

# Configure how checks are run. These variables can be overriden by setting the
# respective environment variables before invoking this script.
# TODO(bbannier): Enable more upstream checks by default, e.g., from the Google set.
setglobal CHECKS = $(CHECKS:-'-*,mesos-*')

# By default perform an optimized build since it appears to finish
# slightly faster. Note that this has no effect on the static analysis.
setglobal CONFIGURE_FLAGS = $(CONFIGURE_FLAGS:-'--enable-optimize')

setglobal MESOS_DIRECTORY = $[cd "$[dirname $0]/.." && pwd]

# Check for unstaged or uncommitted changes.
if ! $[git diff-index --quiet HEAD --] {
  echo 'Please commit or stash any changes before running `mesos-tidy`.'
  exit 1
}

# Execute the container.
docker run \
  --rm \
  -v "$(MESOS_DIRECTORY)":/SRC \
  -e CHECKS="$(CHECKS)" \
  -e CONFIGURE_FLAGS="$(CONFIGURE_FLAGS)" \
  $TAG || exit 1

# Set a trap to delete the image on exit.
trap "docker rmi $TAG" EXIT