Shard the runtime tests.

Default of 20 shards was arbitrary and will need fine-tuning in later CLs.

PiperOrigin-RevId: 269922871

1 files changed, 35 insertions, 0 deletions

diff --git a/test/runtimes/runner.sh b/test/runtimes/runner.sh
new file mode 100755
index 000000000..a8d9a3460
--- /dev/null
+++ b/test/runtimes/runner.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Copyright 2018 The gVisor Authors.
+#
+# 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 -euf -x -o pipefail
+
+echo -- "$@"
+
+# Create outputs dir if it does not exist.
+if [[ -n "${TEST_UNDECLARED_OUTPUTS_DIR}" ]]; then
+  mkdir -p "${TEST_UNDECLARED_OUTPUTS_DIR}"
+  chmod a+rwx "${TEST_UNDECLARED_OUTPUTS_DIR}"
+fi
+
+# Update the timestamp on the shard status file. Bazel looks for this.
+touch "${TEST_SHARD_STATUS_FILE}"
+
+# Get location of runner binary.
+readonly runner=$(find "${TEST_SRCDIR}" -name runner)
+
+# Pass the arguments of this script directly to the runner.
+exec "${runner}" "$@"
+