install-golang.sh

#! /bin/bash

set -euo pipefail

VERSION="1.16"

export GOROOT="$HOME/.go"
export GOPATH="$HOME/workspace/go"

ARCH="$(uname -m)"
PLATFORM="linux-$ARCH"

if [ -d "$GOROOT" ]; then
    echo "The Go install directory ($GOROOT) already exists. Exiting."
    exit 1
fi

PACKAGE_NAME="go$VERSION.$PLATFORM.tar.gz"
TEMP_DIRECTORY=$(mktemp -d)

echo "Downloading $PACKAGE_NAME ..."
curl -s -o "$TEMP_DIRECTORY/go.tar.gz" https://storage.googleapis.com/golang/$PACKAGE_NAME

echo "Extracting File..."
mkdir -p "$GOROOT"

tar -C "$GOROOT" --strip-components=1 -xzf "$TEMP_DIRECTORY/go.tar.gz"
rm -f "$TEMP_DIRECTORY/go.tar.gz"

mkdir -p "${GOPATH}/"{src,pkg,bin}
echo -e "\nGo $VERSION was installed into $GOROOT.\nMake sure to relogin into your shell or run:"
echo -e "set export GOROOT="$HOME/.go in your shell config file"
echo -e "set export GOPATH="$HOME/workspace/go in your shell config file"
echo "Tip: Opening a new terminal window usually just works. :)"