Merge branch 'master' into renovate/google-cloud-translate-2.x

.kokoro/common.cfg

@@ -7,7 +7,7 @@ gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/getting-started-python"
 
 # All builds use the trampoline script to run in docker.
-build_file: "getting-started-python/.kokoro/trampoline.sh"
+build_file: "getting-started-python/.kokoro/trampoline_v2.sh"
 
 # Use the Python worker docker iamge.
 env_vars: {
@@ -18,5 +18,11 @@ env_vars: {
 # Tell the trampoline which build file to use.
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/getting-started-python/.kokoro/system_tests.sh"
+    value: ".kokoro/system_tests.sh"
+}
+
+# We still rely on the legacy service account.
+env_vars: {
+    key: "TRAMPOLINE_USE_LEGACY_SERVICE_ACCOUNT"
+    value: "true"
 }

.kokoro/system_tests.sh

@@ -18,7 +18,8 @@ set -eo pipefail
 
 export PATH=${PATH}:${HOME}/gcloud/google-cloud-sdk/bin
 
-cd github/getting-started-python
+cd "${PROJECT_ROOT:-github/getting-started-python}"
+
 
 # Unencrypt and extract secrets
 SECRETS_PASSWORD=$(cat "${KOKORO_GFILE_DIR}/secrets-password.txt")
@@ -27,6 +28,20 @@ SECRETS_PASSWORD=$(cat "${KOKORO_GFILE_DIR}/secrets-password.txt")
 # Setup environment variables
 export GOOGLE_APPLICATION_CREDENTIALS="$(pwd)/service-account.json"
 
+# This block is executed only with Trampoline V2.
+if [[ -n "${TRAMPOLINE_VERSION:-}" ]]; then
+    # Install nox as a user and add it to the PATH.
+    python3 -m pip install --user nox
+    export PATH="${PATH}:${HOME}/.local/bin"
+fi
+
 # Run tests
 nox -s lint
 nox -s run_tests
+
+# If this is a nightly build, send the test log to the Build Cop Bot.
+# See https://github.com/googleapis/repo-automation-bots/tree/master/packages/buildcop.
+if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"system_tests"* ]]; then
+    chmod +x $KOKORO_GFILE_DIR/linux_amd64/buildcop
+    $KOKORO_GFILE_DIR/linux_amd64/buildcop
+fi