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#!/usr/bin/env bash |
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|
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## |
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# @description Golang Linux installer. |
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# |
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# Example usage: |
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# |
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# sudo -E ./install-go.sh |
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# |
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# @date 2021-02-18 |
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# |
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# @author Jay Taylor <outtatime@gmail.com> |
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# |
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|
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VERSION="${VERSION:-1.17.3}" |
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|
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archive_old_go() { |
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if [ -d '/usr/local/go' ]; then |
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local old_ver |
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old_ver="$( |
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/usr/local/go/bin/go version |
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| awk '{print gensub("^go", "", "g", $3)}' |
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)" |
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rm -rf "/usr/local/go-${old_ver}" |
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mv '/usr/local/go' "/usr/local/go-${old_ver}" |
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elif [ -L '/usr/local/go' ]; then |
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unlink '/usr/local/go' |
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fi |
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} |
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|
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install_profile_d() { |
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cat << 'EOF' > /etc/profile.d/go.sh |
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export GOROOT='/usr/local/go' |
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export GOPATH="${HOME}/go" |
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|
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export PATH="${PATH}:${GOROOT}/bin:${GOPATH}/bin" |
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EOF |
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} |
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|
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install_go() { |
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local -r archive="go${VERSION}.linux-amd64.tar.gz" |
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|
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cd /tmp |
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|
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curl -sSLO "https://golang.org/dl/${archive}" |
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|
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rm -rf 'go' |
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|
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tar -xzf "${archive}" |
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|
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mv 'go' "/usr/local/go-${VERSION}" |
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|
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ln -s "/usr/local/go-${VERSION}" '/usr/local/go' |
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|
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rm -rf "${archive}" "${HOME}/go/pkg/linux_amd64" |
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} |
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|
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main_install_go() { |
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if [ "${UID}" -ne 0 ]; then |
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echo 'ERROR: Must run as root' 1>&2 |
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return 1 |
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fi |
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|
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archive_old_go |
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install_go |
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install_profile_d |
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} |
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|
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if [ "${BASH_SOURCE[0]}" = "${0}" ] || [ "${BASH_SOURCE[0]}" = '--' ]; then |
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set -o errexit |
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set -o pipefail |
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set -o nounset |
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|
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if [ "${1:-}" = '-v' ]; then |
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echo 'INFO: Verbose output enabled' 1>&2 |
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shift |
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set -o xtrace |
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fi |
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|
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main_install_go |
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fi |
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