Add release.sh script for eventing

hack/release.sh

@@ -0,0 +1,134 @@
+#!/bin/bash
+
+# Copyright 2018 The Knative 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 -o errexit
+set -o pipefail
+
+source "$(dirname $(readlink -f ${BASH_SOURCE}))/../test/library.sh"
+
+# Set default GCS/GCR
+: ${EVENTING_RELEASE_GCS:="knative-releases"}
+: ${EVENTING_RELEASE_GCR:="gcr.io/knative-releases"}
+readonly EVENTING_RELEASE_GCS
+readonly EVENTING_RELEASE_GCR
+
+# Local generated yaml file.
+readonly OUTPUT_YAML=release-eventing.yaml
+
+function banner() {
+  echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
+  echo "@@@@ $1 @@@@"
+  echo "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
+}
+
+# Tag Knative Eventing images in the yaml file with a tag.
+# Parameters: $1 - yaml file to parse for images.
+#             $2 - tag to apply.
+function tag_knative_images() {
+  [[ -z $2 ]] && return 0
+  echo "Tagging images with $2"
+  for image in $(grep -o "${EVENTING_RELEASE_GCR}/[a-z\./-]\+@sha256:[0-9a-f]\+" $1); do
+    gcloud -q container images add-tag ${image} ${image%%@*}:$2
+  done
+}
+
+# Copy the given yaml file to the release GCS bucket.
+# Parameters: $1 - yaml file to copy.
+function publish_yaml() {
+  gsutil cp $1 gs://${EVENTING_RELEASE_GCS}/latest/
+  if (( TAG_RELEASE )); then
+    gsutil cp $1 gs://${EVENTING_RELEASE_GCS}/previous/${TAG}/
+  fi
+}
+
+# Script entry point.
+
+cd ${EVENTING_ROOT_DIR}
+
+SKIP_TESTS=0
+TAG_RELEASE=0
+DONT_PUBLISH=0
+KO_FLAGS=""
+
+for parameter in "$@"; do
+  case $parameter in
+    --skip-tests)
+      SKIP_TESTS=1
+      shift
+      ;;
+    --tag-release)
+      TAG_RELEASE=1
+      shift
+      ;;
+    --publish)
+      DONT_PUBLISH=0
+      shift
+      ;;
+    --nopublish)
+      DONT_PUBLISH=1
+      KO_FLAGS="-L"
+      shift
+      ;;
+    *)
+      echo "error: unknown option ${parameter}"
+      exit 1
+      ;;
+  esac
+done
+
+readonly SKIP_TESTS
+readonly TAG_RELEASE
+readonly DONT_PUBLISH
+readonly KO_FLAGS
+
+if (( ! SKIP_TESTS )); then
+  banner "RUNNING RELEASE VALIDATION TESTS"
+  # Run tests.
+  ./test/presubmit-tests.sh
+fi
+
+banner "    BUILDING THE RELEASE   "
+
+# Set the repository
+export KO_DOCKER_REPO=${EVENTING_RELEASE_GCR}
+
+TAG=""
+if (( TAG_RELEASE )); then
+  commit=$(git describe --tags --always --dirty)
+  # Like kubernetes, image tag is vYYYYMMDD-commit
+  TAG="v$(date +%Y%m%d)-${commit}"
+fi
+readonly TAG
+
+if (( ! DONT_PUBLISH )); then
+  echo "- Destination GCR: ${EVENTING_RELEASE_GCR}"
+  echo "- Destination GCS: ${EVENTING_RELEASE_GCS}"
+fi
+
+echo "Building Knative Eventing"
+ko resolve ${KO_FLAGS} -f config/ >> ${OUTPUT_YAML}
+
+tag_knative_images ${OUTPUT_YAML} ${TAG}
+
+if (( DONT_PUBLISH )); then
+  echo "New release built successfully"
+  exit 0
+fi
+
+echo "Publishing release.yaml"
+publish_yaml ${OUTPUT_YAML}
+
+echo "New release published successfully"