Switching go environments

.cfg.sh

#!/bin/sh
GOPATH=$(dirname $0)
GOBIN=$GOPATH"/bin"
PATH=$GOBIN:$PATH

tmux set-option -t ${SESSION} default-shell /bin/zsh
tmux set-option -t ${SESSION} history-limit 5000
tmux set-environment -t ${SESSION} JUJU_MONGOD /usr/lib/juju/bin/mongod
#tmux set-option -t ${SESSION} update-environment "GOPATH GOBIN PATH"
tmux set-environment -t ${SESSION} GOBIN $GOBIN
tmux set-environment -t ${SESSION} GOPATH $GOPATH
tmux set-environment -t ${SESSION} PATH $PATH
tmux new-window -t ${SESSION}:1 -n 'emacs' 'emacs -nw'
tmux new-window -t ${SESSION}:2 -n 'shell'
tmux kill-window -t ${SESSION}:0
tmux select-window -t ${SESSION}:2

goenv

#!/bin/bash -ex

# goenv is a tool for switching between development environments.

ENVS_DIR=$HOME"/envs/"

if [ "$#" -ne 1 ]; then
   echo "Usage: $0 <env name>"
   exit 1
fi

ENV=$1

echo $ENV

envdir=$ENVS_DIR$ENV
if [ ! -d "$envdir" ]; then
   echo "Env not initialized."
   echo "$envdir"
   exit 1
fi

SESSION=$USER-$ENV

cd "$envdir"

if ! tmux has-session -t ${SESSION}; then
    if tmux -2 new-session -d -s ${SESSION}; then
	if [ -f "$envdir"/.cfg.sh ]; then
	    SESSION=${SESSION}  $envdir"/.cfg.sh"
	fi

    fi
fi

tmux attach -t ${SESSION}