This is my setup for working on rails projects in vi and tmux. Thanks to http://www.tofu.org/drupal/node/183 for inspiration. If it isn't a rails project, just open the directory with default tmux stuff.

tmuxme

#!/bin/bash
#
# Usage: tmuxme
#        creates a tmux session with the name of the current directory
#        if the current directory is a rails project, sets up 3 windows:
#        server, console, and vim.
#

SESSION=$(basename $(pwd))

tmux has-session -t $SESSION >/dev/null 2>&1
if [ $? -eq 0 ]; then
  echo "Session $SESSION already exists. Attaching."
  sleep 1
  tmux attach -t $SESSION
  exit 0;
fi

tmux new-session -d -s $SESSION

grep 'rails' 'Gemfile' >/dev/null 2>&1
if [ $? -eq 0 ]; then
  tmux set-window-option -t $SESSION -g automatic-rename off

  tmux new-window -dk -t $SESSION:1 -n 'server'
  tmux new-window -dk -t $SESSION:2 -n 'console'
  tmux new-window -dk -t $SESSION:3 -n 'vim'

  tmux send -t $SESSION:1 'bundle exec rails server' ENTER
  tmux send -t $SESSION:2 'bundle exec rails console' ENTER
  tmux send -t $SESSION:3 'vi .' ENTER

  tmux select-window  -t $SESSION:3
fi

tmux attach -t $SESSION