From 02dbdfce985f96ad98a04a18d83b263d482fb3c2 Mon Sep 17 00:00:00 2001
From: Tim Swast <swast@google.com>
Date: Mon, 25 Apr 2016 15:10:15 -0700
Subject: [PATCH] Allow Travis to continue build if decryption fails. (#187)

Decryption of the service key can fail if Travis is building from a fork
instead of a branch.
---
 .travis.yml | 12 ++++++++----
 travis.sh   | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 4 deletions(-)
 create mode 100755 travis.sh

diff --git a/.travis.yml b/.travis.yml
index 1f24d1d1a51..a4c5bcc8eee 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,12 +15,16 @@
 language: java
 jdk:
   - oraclejdk8
-env:
-  - GOOGLE_APPLICATION_CREDENTIALS=$TRAVIS_BUILD_DIR/service-account.json GCLOUD_PROJECT=cloud-samples-tests
 before_install:
   - openssl aes-256-cbc -K $encrypted_37a4f399de75_key -iv $encrypted_37a4f399de75_iv -in service-account.json.enc -out service-account.json -d
-
-script: mvn --batch-mode clean verify -DskipTests=false | egrep -v "(^\[INFO\] Download|^\[INFO\].*skipping)"
+        && export GOOGLE_APPLICATION_CREDENTIALS=$TRAVIS_BUILD_DIR/service-account.json GCLOUD_PROJECT=cloud-samples-tests
+        || true
+# Skip the install step, since Maven will download the dependencies we need
+# when the test build runs.
+# http://stackoverflow.com/q/31945809/101923
+# https://docs.travis-ci.com/user/customizing-the-build/#Skipping-the-Installation-Step
+install: true
+script: ./travis.sh
 after_success:
   - mvn clean cobertura:cobertura coveralls:report
 branches:
diff --git a/travis.sh b/travis.sh
new file mode 100755
index 00000000000..fe0b680e9d9
--- /dev/null
+++ b/travis.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e
+set -x
+# Set pipefail so that `egrep` does not eat the exit code.
+set -o pipefail
+
+SKIP_TESTS=false
+if [ -z "$GOOGLE_APPLICATION_CREDENTIALS"]; then
+  SKIP_TESTS=true
+fi
+mvn --batch-mode clean verify -DskipTests=$SKIP_TESTS | egrep -v "(^\[INFO\] Download|^\[INFO\].*skipping)"
+