Add build test for Flutter codelabs (#19579)
* Add build test for Flutter codelabs
* Fix indentation in build test script
* Correct filename for the codelabs build test run by travis
* Change if statement to elif
* Replace echo statements with set -x
* Add BSD-style license
* Add codelabs build test to Cirrus
* Remove codelabs_build_test from Travis.
* Remove codelabs_build_test from travis_script.sh
* Update documentation for codelabs_build_test.sh
* Update readme for build test
* Add link to open a new issue to MDC-Flutter
* Add phrase to address "if you think you really need to break this test, please escalate this"
diff --git a/dev/bots/codelabs_build_test.sh b/dev/bots/codelabs_build_test.sh
new file mode 100755
index 0000000..721bd5c
--- /dev/null
+++ b/dev/bots/codelabs_build_test.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+
+set -ex
+
+readonly SCRIPTS_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+readonly ROOT_DIR="$SCRIPTS_DIR/.."
+
+function is_expected_failure() {
+ # A test target was specified with the 'build' command.
+ grep --quiet "is not configured for Running" "$1"
+}
+
+log_file="build_log_for_104_complete.txt"
+build_command="flutter build bundle"
+
+# Attempt to build 104-complete Shrine app from the Flutter codelabs
+git clone https://github.com/material-components/material-components-flutter-codelabs.git
+cd material-components-flutter-codelabs/mdc_100_series/
+git checkout 104-complete
+
+all_builds_ok=1
+echo "$build_command"
+$build_command 2>&1 | tee "$log_file"
+
+if [ ${PIPESTATUS[0]} -eq 0 ] || is_expected_failure "$log_file"; then
+ rm "$log_file"
+else
+ all_builds_ok=0
+ echo "View https://github.com/flutter/flutter/blob/master/dev/bots/README.md for steps to resolve this failed build test." >> ${log_file}
+ echo
+ echo "Log left in $log_file."
+ echo
+fi
+
+# If any build failed, exit with a failure exit status so continuous integration
+# tools can react appropriately.
+if [ "$all_builds_ok" -eq 1 ]; then
+ exit 0
+else
+ exit 1
+fi
