hack/fetch_ext_bins.sh
#!/usr/bin/env bash
# Copyright 2018 The Kubernetes 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 nounset
set -o pipefail

# Enable tracing in this script off by setting the TRACE variable in your
# environment to any value:
#
# $ TRACE=1 test.sh
TRACE=${TRACE:-""}
if [[ -n "${TRACE}" ]]; then
    set -x
fi

kubebuilder_tools_version=1.30.0
goarch=amd64
goos="unknown"

if [[ "${OSTYPE}" == "linux"* ]]; then
    goos="linux"
elif [[ "${OSTYPE}" == "darwin"* ]]; then
    goos="darwin"
fi

if [[ "${goos}" == "unknown" ]]; then
    echo "OS '${OSTYPE}' not supported. Aborting." >&2
    exit 1
fi

# Turn colors in this script off by setting the NO_COLOR variable in your
# environment to any value:
#
# $ NO_COLOR=1 test.sh
NO_COLOR=${NO_COLOR:-""}
if [[ -z "${NO_COLOR}" ]]; then
    header=$'\e[1;33m'
    reset=$'\e[0m'
else
    header=''
    reset=''
fi

function header_text
{
    echo "${header}$*${reset}"
}

tmp_root=/tmp

kb_root_dir="${tmp_root}/kubebuilder"

# Skip fetching and untaring the tools by setting the SKIP_FETCH_TOOLS variable
# in your environment to any value:
#
# $ SKIP_FETCH_TOOLS=1 ./fetch_ext_bins.sh
#
# If you skip fetching tools, this script will use the tools already on your
# machine, but rebuild the kubebuilder and kubebuilder-bin binaries.
SKIP_FETCH_TOOLS="${SKIP_FETCH_TOOLS:-}"

function prepare_staging_dir
{
    header_text "preparing staging dir"

    if [[ -z "${SKIP_FETCH_TOOLS}" ]]; then
        rm -rf "${kb_root_dir}"
    else
        rm -f "${kb_root_dir}/kubebuilder/bin/kubebuilder"
        rm -f "${kb_root_dir}/kubebuilder/bin/kubebuilder-gen"
        rm -f "${kb_root_dir}/kubebuilder/bin/vendor.tar.gz"
    fi
}

# fetch k8s API gen tools and make it available under kb_root_dir/bin.
function fetch_tools
{
    if [[ -n "${SKIP_FETCH_TOOLS}" ]]; then
        return 0
    fi

    header_text "fetching tools"
    kb_tools_archive_name="kubebuilder-tools-${kubebuilder_tools_version}-${goos}-${goarch}.tar.gz"
    echo "Downloading kubebuilder tools archive: ${kb_tools_archive_name}"
    kb_tools_download_url="https://storage.googleapis.com/kubebuilder-tools/${kb_tools_archive_name}"

    kb_tools_archive_path="${tmp_root}/${kb_tools_archive_name}"
    if [[ ! -f ${kb_tools_archive_path} ]]; then
        curl -fsL ${kb_tools_download_url} -o "${kb_tools_archive_path}"
    fi
    tar -zvxf "${kb_tools_archive_path}" -C "${tmp_root}/"
}

function setup_envs
{
    header_text "setting up env vars"

    # Setup env vars
    export PATH="/tmp/kubebuilder/bin:${PATH}"
    export TEST_ASSET_KUBECTL=/tmp/kubebuilder/bin/kubectl
    export TEST_ASSET_KUBE_APISERVER=/tmp/kubebuilder/bin/kube-apiserver
    export TEST_ASSET_ETCD=/tmp/kubebuilder/bin/etcd
}
