ADD: added new version of protobuf

libs/protobuf/kokoro/linux/build_and_run_docker.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+#
+# Builds docker image and runs a command under it.
+# This is a generic script that is configured with the following variables:
+#
+# DOCKERHUB_ORGANIZATION - The organization on docker hub storing the
+# Dockerfile.
+# DOCKERFILE_DIR - Directory in which Dockerfile file is located.
+# DOCKER_RUN_SCRIPT - Script to run under docker (relative to protobuf repo root)
+# OUTPUT_DIR - Directory that will be copied from inside docker after finishing.
+# $@ - Extra args to pass to docker run
+
+set -ex
+
+cd $(dirname $0)/../..
+git_root=$(pwd)
+cd -
+
+# Use image name based on Dockerfile sha1
+if [ -z "$DOCKERHUB_ORGANIZATION" ]
+then
+  DOCKERHUB_ORGANIZATION=grpctesting/protobuf
+  DOCKER_IMAGE_NAME=${DOCKERHUB_ORGANIZATION}_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
+else
+  # TODO(teboring): Remove this when all tests have been migrated to separate
+  # docker images.
+  DOCKERFILE_PREFIX=$(basename $DOCKERFILE_DIR)
+  DOCKER_IMAGE_NAME=${DOCKERHUB_ORGANIZATION}/${DOCKERFILE_PREFIX}_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
+fi
+
+# Pull dockerimage from Dockerhub. This sometimes fails intermittently, so we
+# keep trying until we succeed.
+until docker pull $DOCKER_IMAGE_NAME; do sleep 10; done
+
+# Ensure existence of ccache directory
+CCACHE_DIR=/tmp/protobuf-ccache
+mkdir -p $CCACHE_DIR
+
+# Choose random name for docker container
+CONTAINER_NAME="build_and_run_docker_$(uuidgen)"
+
+echo $git_root
+
+# Run command inside docker
+docker run \
+  "$@" \
+  -e CCACHE_DIR=$CCACHE_DIR \
+  -e KOKORO_BUILD_NUMBER=$KOKORO_BUILD_NUMBER \
+  -e KOKORO_BUILD_ID=$KOKORO_BUILD_ID \
+  -e EXTERNAL_GIT_ROOT="/var/local/kokoro/protobuf" \
+  -e TEST_SET="$TEST_SET" \
+  -v "$git_root:/var/local/kokoro/protobuf:ro" \
+  -v $CCACHE_DIR:$CCACHE_DIR \
+  -w /var/local/git/protobuf \
+  --name=$CONTAINER_NAME \
+  $DOCKER_IMAGE_NAME \
+  bash -l "/var/local/kokoro/protobuf/$DOCKER_RUN_SCRIPT" || FAILED="true"
+
+# remove the container, possibly killing it first
+docker rm -f $CONTAINER_NAME || true
+
+[ -z "$FAILED" ] || {
+  exit 1
+}