Extremely simple GOPATH management using .gopath files as GOPATH roots.

1. Download the github.com/GeorgeMac/goenv/goenv.sh shell script. For example into your home directory ~/goenv.sh.
2. Make it executable chmod +x ~/goenv.sh.
3. In your .bashrc, .bash_profile or .zshrc enter the line source ~/goenv.sh.

    goenv [global | local | init]

Sets your $GOPATH to ~/go, purely because that is my goto gopath. You can adjust the source accordingly if this bothers you.

Sets your $GOPATH to your CURRENT directory or the FIRST PARENT directory containing a file named .gopath.

for example:

/home
    /george
        /go
            .gopath
            /bin
            /pkg
            /src
                /github.com
                    /GeorgeMac
    /work
        /source
            /gofiles
                .gopath
                /bin
                /pkg
                /src
                    /bitbucket.org

Using goenv local in any directory /home/george/go or below will set your $GOPATH to /home/george/go. Where as using goenv local within any directory /home/work/source/gofiles or below, will set it to /home/work/source/gofiles.

Touches a .gopath file in the current directory.

cd /home/george/go
goenv init # creates /home/george/go/.gopath

Set your RPROMPT up to display your $GOPATH environment variable.