#!/usr/bin/env bash
#
# Copyright 2016 The OpenZipkin Authors
#
# Licensed 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.
#

set -euo pipefail
set -x

release_version() {
    echo "${CIRCLE_TAG}" | sed 's/^release-//'
}

safe_checkout_master() {
  # We need to be on a branch for release:perform to be able to create commits, and we want that branch to be master.
  # But we also want to make sure that we build and release exactly the tagged version, so we verify that the remote
  # master is where our tag is.
  git checkout -B master
  git fetch origin master:origin/master
  commit_local_master="$(git show --pretty='format:%H' master)"
  commit_remote_master="$(git show --pretty='format:%H' origin/master)"
  if [ "$commit_local_master" != "$commit_remote_master" ]; then
    echo "Master on remote 'origin' has commits since the version under release, aborting"
    exit 1
  fi
}

safe_checkout_master
./mvnw --batch-mode -s ./.settings.xml -Prelease -nsu -DreleaseVersion="$(release_version)" -Darguments="-DskipTests" release:prepare
