Utility functions to manage tmux sessions

tmux.sh

#!/bin/zsh

tmux_session_exists() {
  local session_name="$1"

  [[ -z "$session_name" ]] && return 1

  tmux has-session -t "$session_name" 2> /dev/null
}

tmux_start() {
  local session_name="$1"
  local command="$2"

  if [[ -z "$session_name" || -z "$command" ]]; then
    echo "Usage: tmux_start <session_name> <command>"
    return 1
  fi

  if tmux_session_exists "$session_name"; then
    echo "Session '$session_name' is already running."
  else
    echo "Starting session '$session_name' ..."
    tmux new-session -d -s "$session_name" "$command"
  fi
}

tmux_attach() {
  local session_name="$1"

  if [[ -z "$session_name" ]]; then
    echo "Usage: tmux_attach <session_name>"
    return 1
  fi

  if tmux_session_exists "$session_name"; then
    echo "Attaching to session '$session_name' ..."
    tmux attach-session -t "$session_name"
  else
    echo "Session '$session_name' does not exist."
    return 1
  fi
}

tmux_stop() {
  local session_name="$1"

  if [[ -z "$session_name" ]]; then
    echo "Usage: tmux_stop <session_name>"
    return 1
  fi

  if tmux_session_exists "$session_name"; then
    echo "Stopping '$session_name' ..."
    tmux send-keys -t "$session_name" C-c

    sleep 3 # Give it time to clean up

    if tmux_session_exists "$session_name"; then
      tmux kill-session -t "$session_name"
      echo "Session '$session_name' forced to terminate."
    else
      echo "Session '$session_name' exited gracefully."
    fi
  else
    echo "Session '$session_name' does not exist."
    return 1
  fi
}