First draft at setting up Cloudbuild

Revert dependencies

.mvn/wrapper/maven-wrapper.properties

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+# 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.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

cloudbuild/Dockerfile

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+# This Dockerfile creates an image for running presubmit tests.
+FROM openjdk:8

cloudbuild/cloudbuild.yaml

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+steps:
+# 1. Create a Docker image containing hadoop-connectors repo
+- name: 'gcr.io/cloud-builders/docker'
+  id: 'docker-build'
+  args: ['build', '--tag=gcr.io/$PROJECT_ID/dataproc-hive-bigquery-storage-handler-presubmit', '-f', 'cloudbuild/Dockerfile', '.']
+
+# 2. Fetch maven and dependencies
+- name: 'gcr.io/$PROJECT_ID/dataproc-hive-bigquery-storage-handler-presubmit'
+  id: 'init'
+  waitFor: ['docker-build']
+  entrypoint: 'bash'
+  args: ['/workspace/cloudbuild/presubmit.sh', 'init']
+  env:
+  - 'CODECOV_TOKEN=${_CODECOV_TOKEN}'
+
+# 3. Run unit tests
+- name: 'gcr.io/$PROJECT_ID/dataproc-hive-bigquery-storage-handler-presubmit'
+  id: 'unit-tests'
+  waitFor: ['init']
+  entrypoint: 'bash'
+  args: ['/workspace/cloudbuild/presubmit.sh', 'unittest']
+  env:
+  - 'CODECOV_TOKEN=${_CODECOV_TOKEN}'
+
+# Tests take around 30 mins in general.
+timeout: 1800s
+
+options:
+  machineType: 'N1_HIGHCPU_32'

cloudbuild/gcp-settings.xml

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+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
+                      https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <mirrors>
+    <mirror>
+      <id>google-maven-central</id>
+      <name>GCS Maven Central mirror</name>
+      <url>https://maven-central.storage-download.googleapis.com/maven2/</url>
+      <mirrorOf>central</mirrorOf>
+    </mirror>
+  </mirrors>
+</settings>

cloudbuild/presubmit.sh

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+#!/bin/bash
+
+# Copyright 2019 Google Inc. All Rights Reserved.
+#
+# 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 -euxo pipefail
+
+readonly MVN="./mvnw -B -e -s /workspace/cloudbuild/gcp-settings.xml -Dmaven.repo.local=/workspace/.repository"
+readonly STEP=$1
+
+cd /workspace
+
+case $STEP in
+  # Download maven and all the dependencies
+  init)
+    $MVN install -DskipTests
+    exit
+    ;;
+
+  # Run unit tests
+  unittest)
+    $MVN test
+    ;;
+
+  *)
+    echo "Unknown step $STEP"
+    exit 1
+    ;;
+esac
+