build.sh in googleauth-0.8.1

- old
+ new
@@ -1,36 +1,4 @@
 #!/bin/bash
 
-# This file runs tests for merges, PRs, and nightlies.
-# There are a few rules for what tests are run:
-#  * PRs run all non-acceptance tests for every library.
-#  * Merges run all non-acceptance tests for every library, and acceptance tests for all altered libraries.
-#  * Nightlies run all acceptance tests for every library.
-
-set -eo pipefail
-
-# Debug: show build environment
-env | grep KOKORO
-
-cd github/google-auth-library-ruby/
-
-# Print out Ruby version
-ruby --version
-
-# Temporary workaround for a known bundler+docker issue:
-# https://github.com/bundler/bundler/issues/6154
-export BUNDLE_GEMFILE=
-
-RUBY_VERSIONS=("2.3.8" "2.4.5" "2.5.3")
-
-# Capture failures
-EXIT_STATUS=0 # everything passed
-function set_failed_status {
-    EXIT_STATUS=1
-}
-
-for version in "${RUBY_VERSIONS[@]}"; do
-    rbenv global "$version"
-    (bundle update && bundle exec rake) || set_failed_status
-done
-
-exit $EXIT_STATUS
+script_url="https://raw.githubusercontent.com/googleapis/google-cloud-ruby/master/.kokoro/build.sh"
+curl -o master-build.sh $script_url && source master-build.sh