#!/usr/bin/env bash
# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# 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.

# Run this from the root of your clone of the kubernetes/helm repository.
# Be sure to checkout the release you want to install before running it,
# since it will attempt to pull the version from HEAD on the current branch.

set -euo pipefail

DEFAULT_TAG=git-$(git rev-parse --short HEAD)
DEFAULT_PLATFORM=$(uname | tr '[:upper:]' '[:lower:]')
DEFAULT_ARCH=$(uname -m)

if [[ "${DEFAULT_ARCH}" == x86_64 ]]; then
	DEFAULT_ARCH=amd64
fi

PLATFORM=${PLATFORM:-${DEFAULT_PLATFORM}}
ARCH=${ARCH:-${DEFAULT_ARCH}}
TAG=${TAG:-${DEFAULT_TAG}}

BINARY=helm-${PLATFORM}-${ARCH}
ZIP=${TAG}-${BINARY}.zip

STORAGE_URL=http://get-helm.storage.googleapis.com

echo "Downloading ${ZIP}..."
curl -Ls "${STORAGE_URL}/${ZIP}" -O

unzip -qo ${ZIP}
rm ${ZIP}

chmod +x helm

cat <<EOF

helm is now available in your current directory.

Before using it, please install the Deployment Manager service in your
kubernetes cluster by running

$ ./helm server install

To get started, run:

$ ./helm help

EOF