get-go.sh

#! /bin/bash

# From [get_golang.sh](https://gist.github.com/n8henrie/1043443463a4a511acf98aaa4f8f0f69)
# Download latest Golang release for AMD64

# python3 and git are required before to run this script
#
set -euf -o pipefail
# Install pre-reqs
o=$(python3 -c $'import os\nprint(os.get_blocking(0))\nos.set_blocking(0, True)')

#Download Latest Go
GOURLREGEX='https://dl.google.com/go/go[0-9\.]+\.linux-amd64.tar.gz'
echo "Finding latest version of Go for AMD64..."
url="$(wget -qO- https://golang.org/dl/ | grep -oP 'https:\/\/dl\.google\.com\/go\/go([0-9\.]+)\.linux-amd64\.tar\.gz' | head -n 1 )"
latest="$(echo $url | grep -oP 'go[0-9\.]+' | grep -oP '[0-9\.]+' | head -c -2 )"
echo "Downloading latest Go for AMD64: ${latest}"
wget --quiet --continue --show-progress "${url}"
unset url
unset GOURLREGEX

# Remove Old Go
sudo rm -rf /usr/local/go

# Install new Go
sudo tar -C /usr/local -xzf go"${latest}".linux-amd64.tar.gz
echo "Create the skeleton for your local users go directory"
mkdir -p ~/go/{bin,pkg,src}
echo "Setting up GOPATH"
echo "export GOPATH=~/go" >> ~/.profile && source ~/.profile
echo "Setting PATH to include golang binaries"
echo "export PATH='$PATH':/usr/local/go/bin:$GOPATH/bin" >> ~/.profile && source ~/.profile
echo "Installing dep for dependency management"

# Remove Download
rm go"${latest}".linux-amd64.tar.gz

# Print Go Version
/usr/local/go/bin/go version
python3 -c $'import os\nos.set_blocking(0, '$o')'