65 lines
2.2 KiB
Bash
Executable File
65 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2016 The Kubernetes Authors All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -eux -o pipefail
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if (($# < 2)); then
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echo "ERROR: given ! ($#) number of parameters but expect 2."
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echo "USAGE: ./check_and_install_golang.sh VERSION_TO_INSTALL INSTALL_PATH"
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exit 1
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fi
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VERSION_TO_INSTALL=${1}
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INSTALL_PATH=${2}
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# installs or updates golang if right version doesn't exists
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function check_and_install_golang() {
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if ! go version &>/dev/null; then
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echo "WARNING: No golang installation found in your enviroment."
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install_golang "$VERSION_TO_INSTALL" "$INSTALL_PATH"
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return
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fi
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# golang has been installed and check its version
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if [[ $(go version) =~ (([0-9]+)\.([0-9]+).([0-9]+).([\.0-9]*)) ]]; then
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HOST_VERSION=${BASH_REMATCH[1]}
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if [ $HOST_VERSION = $VERSION_TO_INSTALL ]; then
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echo "go version on the host looks good : $HOST_VERSION"
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else
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echo "WARNING: expected go version to be $VERSION_TO_INSTALL but got $HOST_VERSION"
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install_golang "$VERSION_TO_INSTALL" "$INSTALL_PATH"
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fi
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else
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echo "ERROR: Failed to parse golang version: $HOST_VERSION"
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return
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fi
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}
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# install_golang takes two parameters version and path to install.
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function install_golang() {
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echo "Installing golang version: $1 on $2"
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pushd /tmp >/dev/null
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# using sudo because previously installed versions might have been installed by a different user.
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# as it was the case on jenkins VM.
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sudo curl -qL -O "https://storage.googleapis.com/golang/go${1}.linux-amd64.tar.gz" &&
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sudo tar xfa go${1}.linux-amd64.tar.gz &&
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sudo rm -rf "${2}/go" &&
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sudo mv go "${2}/" && sudo chown -R $(whoami): ${2}/go
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popd >/dev/null
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}
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check_and_install_golang
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