use-go ci-addon for cloudbees

use-go

#!/bin/bash

if [[ -z $GOLANG_VERSION ]]; then
   GOLANG_VERSION=1.1.1
   echo "No version provided for go, will use the last one: $GOLANG_VERSION" 1>&2
fi

set -e

ARCH=`uname -m`
if [ $ARCH = "x86_64" ];
then
  ARCH="amd64"
fi

golang_name=go${GOLANG_VERSION}.linux-${ARCH}
echo "Setting up $golang_name"
# https://go.googlecode.com/files/go1.1.1.linux-386.tar.gz
# https://go.googlecode.com/files/go1.1.1.linux-x86_64.tar.gz

golang_dir=/scratch/jenkins/golang/${golang_name}
mkdir -p ${golang_dir}
test -f ${golang_dir}.tar.gz ||  wget -q -P /scratch/jenkins/golang https://go.googlecode.com/files/${golang_name}.tar.gz
test -f ${golang_dir}/bin/go || tar xzf ${golang_dir}.tar.gz  -C ${golang_dir}
export PATH=${golang_dir}/go/bin:$PATH
echo "Go install complete"
echo `go version`