Automatically setting Golang envs.

gopath.sh

#!/bin/bash
DIRECTORY=${PWD}

export GOROOT=/usr/local/go
export GOPATH=$(echo $DIRECTORY | awk -F'/src/' '{print $1}')

CHANGED=0

if [[ $PATH != *$GOROOT* ]]; then
    echo "adding GOROOT/bin to PATH"
    export PATH=$PATH:$GOROOT/bin
    export PATH_WITHOUT_GOPATH=$PATH
    CHANGED=1
fi

if [[ $PATH != *$GOPATH* ]]; then
    echo "adding GOPATH/bin to previously saved PATH"
    export PATH=$PATH_WITHOUT_GOPATH:$GOPATH/bin
    CHANGED=1
fi

export GOBIN=$GOPATH/bin

if [[ $CHANGED -eq 1 ]]; then
    echo ""
    echo "GOROOT: " $GOROOT
    echo "GOPATH: " $GOPATH
    echo "PATH:   " $PATH
fi