goenv's Introduction

goenv - Set up a Golang environment

I got tired of manually setting my GOPATH when I went from one project to another, so I wrote a small utility to set up my environment for me. It is similar in spirit to Python's virtualenv, though it does less, and does it a little differently.

The main difference is that instead of an 'activate' script that sets up your environment, this opens up a new subshell for you to work in. It will also download and install the version of Go that you want it to.

Installation

It is a single Python script, so you can just make it executable and put it somewhere in your path.

# you might need to add --no-check-certificate to the wget command...
$ wget -O ~/bin/goenv https://raw.github.com/pwoolcoc/goenv/master/goenv
# for the love of pete, don't just run scripts you get from the internet, check them first!
$ $EDITOR ~/bin/goenv
$ chmod +x ~/bin/goenv

Usage

$ cd /path/to/project
$ echo $GOPATH

# simplest usage
$ goenv
Downloading http://go.googlecode.com/files/go1.2.linux-amd64.tar.gz
Extracting /home/user/.cache/goenv/go1.2.linux-amd64.tar.gz to /home/user/.config/goenv/dists/1.2
(golang-1.2) $ echo $GOPATH
/path/to/project:/path/to/project/pkg/somepkg
^D
$

# You don't have to download a new go tarball every time...
$ goenv
Using existing tarball
Go version 1.2 already exists, skipping extract
(golang-1.2) $
^D
$

# specify Golang version
$ goenv --go-version 1.1
Downloading http://go.googlecode.com/files/go1.1.linux-amd64.tar.gz
Extracting /home/user/.cache/goenv/go1.1.linux-amd64.tar.gz to /home/user/.config/goenv/dists/1.1
(golang-1.1) $