Tmux Config and Startup Script

.tmux.conf

# definitely DON'T use Ctrl+b. lame.
unbind C-b

# I never use the Insert key on the console, but it is a bit of a stretch
# set -g prefix IC

# ` is a cool prefix
set -g prefix `

set -g default-terminal "screen-256color"

# this should allow for `` to be a literal `
bind-key ` send-prefix

# 1 is easier to reach than 0
set -g base-index 1

# make 0 window 10
bind-key 0 select-window -t ':10'

# - moves left, = moves right
bind-key - previous-window
bind-key = next-window

bind-key p delete-buffer
bind-key K kill-window
bind-key Q kill-session

# Why have all this RAM if you're not going to use it?
set -g history-limit 12288

# black background, hostname red, date and 24hr time in white, extra space for aesthetics
set -g status-right '#[fg=red,bg=black] #H:#(echo $USER) '
set -g status-left '#[fg=green,bg=black] #S:#I '

# check out mouse mode! (scrolling)
# set -g mode-mouse on
# set -g mouse-resize-pane on
# set -g mouse-select-pane on
# set -g mouse-select-window on

bind m \
  set -g mode-mouse on \;\
  set -g mouse-resize-pane on \;\
  set -g mouse-select-pane on \;\
  set -g mouse-select-window on \;\
  display 'Mouse: ON'

bind M \
  set -g mode-mouse off \;\
  set -g mouse-resize-pane off \;\
  set -g mouse-select-pane off \;\
  set -g mouse-select-window off \;\
  display 'Mouse: OFF'

tproj

#!/usr/bin/env ruby

# Usage:
# tproj <- get a list of available projects (configured below)
# tproj project-name <- start or resume a specific project

class Project
  attr_reader :abbr, :dir, :options

  def initialize(abbr:, dir:, **options)
    @abbr     = abbr
    @dir      = dir
    @options  = options
  end

  def names
    options.fetch(:names) { [abbr] }
  end

  def windows
    options.fetch(:windows) { 1 }
  end

  def commands
    options.fetch(:commands) { [] }
  end

  def labels
    options.fetch(:labels) { [] }
  end

  def start
    options.fetch(:start) { false }
  end

  def inputs
    options.fetch(:inputs) { [] }
  end
end

def project(**options)
  Project.new(options)
end

def rails(**options)
  defaults = {
    commands: ["bin/rails s", "bin/rails c"],
    labels:   ["r/s", "r/c"],
    windows:  4,
    start:    false,
  }
  project defaults.merge(options)
end

projects = [
  rails(abbr: "ub",   dir: "~/projects/underbee", names: %w(underbee ub), windows: 5, start: true),
  rails(abbr: "pmgr", dir: "~/projects/n2/pub_manager", windows: 6),
  rails(abbr: "n2q",  dir: "~/projects/n2/n2q"),
  rails(abbr: "ids",  dir: "~/projects/if/ids"),
  rails(abbr: "omg",  dir: "~/projects/omgdots", names: %w(omg omgdots)),
  project(abbr: "dots", dir: "~/projects/dotfiles", names: %w(dotfiles dots)),
]

unless ARGV[0]
  names = projects.map(&:abbr).join(", ")
  puts "Available projects: #{names}"
  exit
end

current = projects.detect { |proj| proj.names.member?(ARGV[0]) }
unless current
  STDERR.puts "Project not found: #{ARGV[0].inspect}"
  exit 1
end

existing_sessions = `tmux list-sessions`.split("\n")
match = existing_sessions.detect { |x| x.split(":")[0] == current.abbr }

print "\033]0;tmux:#{current.dir}\007"
exec "tmux attach -t #{current.abbr}" if match

Dir.chdir File.expand_path(current.dir)
system "tmux new -s #{current.abbr} -d"
delayed = []
1.step(to: current.windows) do |n|
  cmd, label, keys = current.commands[n - 1], current.labels[n - 1], current.inputs[n - 1]
  system "tmux new-window -t #{current.abbr}" unless n == 1
  if cmd || keys
    tmux_command = ["tmux", "send-keys", "-t", "#{current.abbr}:#{n}", cmd || keys]
    tmux_command << "Enter" if cmd && current.start
    delayed << tmux_command
  end
  if label
    system "tmux", "rename-window", "-t", "#{current.abbr}:#{n}", label
  end
end

sleep 0.5 # give bash a chance so prompt is drawn before keys
delayed.each { |cmd| system *cmd }

system "tmux select-window -t #{current.abbr}:1"
exec "tmux attach -t #{current.abbr}"