feat: add dependency list completeness check

Author: stephaniewang526

.kokoro/completeness-check.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+# Copyright 2020 Google LLC
+#
+# 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 -eo pipefail
+
+## Get the directory of the build script
+scriptDir=$(realpath $(dirname "${BASH_SOURCE[0]}"))
+function now() { date +"%Y-%m-%d %H:%M:%S" | tr -d '\n'; }
+function msg() { println "$*" >&2; }
+function println() { printf '%s\n' "$(now) $*"; }
+
+function cleanup() {
+  rm .org-list.txt .new-list.txt .diff.txt
+}
+
+## cd to the parent directory, i.e. the root of the git repo
+cd ${scriptDir}/..
+
+## Locally install artifacts
+#mvn verify -DskipTests
+
+## Find client directory that continas flattened pom and cd into it
+clientDir=$(find -iname ".flattened-pom.xml" | cut -d"/" -f1-2)
+cd "$clientDir"
+
+## Run dependency list completeness check
+
+# Output dep list with compile scope generated using the original pom
+msg "Generating dependency list using original pom..."
+mvn dependency:list -f pom.xml -Dsort=true | grep '\[INFO]    .*:.*:.*:.*:compile' >.org-list.txt
+
+# Output dep list with compile scope generated using the flattened pom
+msg "Generating dependency list using flattened pom..."
+mvn dependency:list -f .flattened-pom.xml -Dsort=true | grep '\[INFO]    .*:.*:.*:.*:compile' >.new-list.txt
+
+# Compare two dependency lists
+msg "Comparing dependency lists..."
+diff .org-list.txt .new-list.txt >.diff.txt && (msg "Success. No diff!" && cleanup) || (msg "Diff found: " && cat .diff.txt)