#! /bin/bash

# [get_golang.sh](https://gist.github.com/n8henrie/1043443463a4a511acf98aaa4f8f0f69)
# Download latest Golang release for AMD64
# https://dl.google.com/go/go1.10.linux-amd64.tar.gz

set -euf -o pipefail
# Install pre-reqs
sudo apt-get install python3 git -y
o=$(python3 -c $'import os\nprint(os.get_blocking(0))\nos.set_blocking(0, True)')

#Download Latest Go
LATEST="$(curl -s https://go.dev/VERSION?m=text)"
DL_PKG="$LATEST.linux-amd64.tar.gz"
DL_URL="https://golang.org/dl/$DL_PKG"
echo "Finding latest version of Go for AMD64..."
echo "Downloading latest Go for AMD64: ${LATEST}"
wget --quiet --continue --show-progress "${DL_URL}"
unset url
unset GOURLREGEX

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

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

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

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