File: utils.sh

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#!/bin/bash

#   Copyright The containerd 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.

ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/..

# upload_logs_to_gcs uploads test logs to gcs.
# Var set:
# 1. Bucket: gcs bucket to upload logs.
# 2. Dir: directory name to upload logs.
# 3. Test Result: directory of the test result.
upload_logs_to_gcs() {
  local -r bucket=$1
  local -r dir=$2
  local -r result=$3
  if ! gsutil ls "gs://${bucket}" > /dev/null; then
    create_ttl_bucket "${bucket}"
  fi
  local -r upload_log_path=${bucket}/${dir}
  gsutil cp -r "${result}" "gs://${upload_log_path}"
  echo "Test logs are uploaded to:
    http://gcsweb.k8s.io/gcs/${upload_log_path}/"
}

# create_ttl_bucket create a public bucket in which all objects
# have a default TTL (30 days).
# Var set:
# 1. Bucket: gcs bucket name.
create_ttl_bucket() {
  local -r bucket=$1
  gsutil mb "gs://${bucket}"
  local -r bucket_rule=$(mktemp)
  # Set 30 day TTL for logs inside the bucket.
  echo '{"rule": [{"action": {"type": "Delete"},"condition": {"age": 30}}]}' > "${bucket_rule}"
  gsutil lifecycle set "${bucket_rule}" "gs://${bucket}"
  rm "${bucket_rule}"

  gsutil -m acl ch -g all:R "gs://${bucket}"
  gsutil defacl set public-read "gs://${bucket}"
}

# sha256 generates a sha256 checksum for a file.
# Var set:
# 1. Filename.
sha256() {
  if which sha256sum >/dev/null 2>&1; then
    sha256sum "$1" | awk '{ print $1 }'
  else
    shasum -a256 "$1" | awk '{ print $1 }'
  fi
}