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Installation.md

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Installing go

For OSX

First you need to have homebrew installed, if you don't have it yet.

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Then, let's install go's latest version.

brew install go

Lastly, let's install Mercurial and Bazaar

brew install mercurial bzr

For linux

We need to install linux dependencies on the correct distribution.

Ubuntu and Debian

sudo apt-get update && sudo apt-get upgrade -y
sudo apt-get install -y curl git mercurial make binutils gcc bzr bison libgmp3-dev screen gcc build-essential

Centos and Fedora

sudo yum update -y && sudo yum upgrade -y
sudo yum install -y git curl make gcc mercurial binutils bzr bison screen
if [[ "$(cat /etc/redhat-release | grep -o CentOS)" == "CentOS" ]]; then sudo yum install -y build-essential libgmp3-dev; else sudo yum groupinstall -y "Development Tools" "Development Libraries" && sudo yum install -y gmp; fi;

Install Go with Gvm

Install Gvm

gvm need to be installed.

curl -sSL https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer > gvm-installer && chmod a+x gvm-installer && 
source $HOME/.gvm/scripts/gvm

Install Go

In China, use --source=https://github.com/golang/go to bypass firewall when fetching golang source.

gvm install go1.4 --source=https://github.com/golang/go
gvm use go1.4

gvm install go1.9
gvm use go1.9 --default

Installation issues

If you open up new a terminal and the go command is not found then add this to .bashrc. GVM should add this automatically.

[[ -s "$HOME/.gvm/scripts/gvm" ]] && source "$HOME/.gvm/scripts/gvm"
gvm use go1.9 >/dev/null

Install Go manually

Install Go

Let's go to home directory and declare go's version that you want to download.

cd ~
export GOV=1.9 # golang version. Could be any of the following versions 1.1, 1.2, 1.3, 1.4, ..., 1.9

After that, let's download and uncompress golang source.

curl -sS https://storage.googleapis.com/golang/go$GOV.linux-amd64.tar.gz > go$GOV.linux-amd64.tar.gz
tar xvf go$GOV.linux-amd64.tar.gz
rm go$GOV.linux-amd64.tar.gz

lastly, let's install go.

sudo mv go /usr/local/go
sudo ln -s /usr/local/go/bin/go /usr/local/bin/go
sudo ln -s /usr/local/go/bin/godoc /usr/local/bin/godoc
sudo ln -s /usr/local/go/bin/gofmt /usr/local/bin/gofmt

Note: Find any golang source version at Go Website

Setup your GOPATH

The $GOPATH environment variable specifies the location of your workspace. It defaults to a directory named go inside your home directory, so $HOME/go on Unix.

Create your workspace directory with it's respective inner folders:

mkdir -p $HOME/go
mkdir -p $HOME/go/bin
mkdir -p $HOME/go/src
mkdir -p $HOME/go/pkg

Setup $GOPATH variable, add it to ~/.bashrc. After editing, run source ~/.bashrc or open a new tab.

export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOBIN

Test your Go installation

Create and run the hello.go application described here: https://golang.org/doc/install#testing to check if your Go installation is working.