stmux

#!/bin/bash                                                                                                                                                                                                 

TMUX_SESSION_NAME="manage_words"

# Get the fully qualified path to the directory holding this bash script
PROJECT_DIR=$( cd $( dirname "${BASH_SOURCE[0]}" ) && pwd )

tmux list-sessions 2> /dev/null | grep ${TMUX_SESSION_NAME}
if [ $? -eq 0 ]; then
  echo "The \"${TMUX_SESSION_NAME}\" tmux session already exists. Attaching to it..."

  # Attach the terminal to the session.
  tmux attach-session -d -t "${TMUX_SESSION_NAME}"
else
  echo "The \"${TMUX_SESSION_NAME}\" tmux session does NOT exist. Creating it..."

  # Prime the CWD so that it is used as the CWD for the session and its windows
  cd ${PROJECT_DIR}

  # Create a new session.
  tmux new-session -d -s "${TMUX_SESSION_NAME}"

  # Source bash script containing user's session specific configurations
  user_specific_session_script="${HOME}/.tmux/session_scripts/${TMUX_SESSION_NAME}"
  if [ -e $user_specific_session_script ]; then
    # Note: TMUX_SESSION_NAME and PROJECT_DIR are automatically available in
    # the source'd user's session specific script.
    source $user_specific_session_script
  fi  

  # Create a new window inside the session called 'log' containing the apps dev logs.
  tmux new-window -t "${TMUX_SESSION_NAME}" -n log -d '${SHELL}'
  tmux send-keys -t "${TMUX_SESSION_NAME}:log" 'tail -f log/development.log' C-m 

  # Create a new window inside the session called 'server' running 'rails server'.
  tmux new-window -t "${TMUX_SESSION_NAME}" -n server -d '${SHELL}'
  tmux send-keys -t "${TMUX_SESSION_NAME}:server" 'rails server' C-m 

  # Create a new window inside the session called 'irb' running 'irb'.
  tmux new-window -t "${TMUX_SESSION_NAME}" -n irb -d '${SHELL}'
  tmux send-keys -t "${TMUX_SESSION_NAME}:irb" 'irb' C-m 

  # Create a new window inside the session called 'console' running 'rails c'.
  tmux new-window -t "${TMUX_SESSION_NAME}" -n console -d '${SHELL}'

  # Attach the terminal to the session.
  tmux attach-session -d -t "${TMUX_SESSION_NAME}"
fi