ns.rb

#! /usr/bin/env ruby

# this program (on osx and probably others) will give you a 'named screen'
# (ns) command that will create named screens that will also name Terminal.app
# tabs, even on re-attach.  save it in ~/bin/ns and use as in
#
# to create a named screen 
#
#   ns ~/src/foobar
#
# to detach use the standard
# 
#   Ctrl-A d
#
# to attache to a previously named screen use
#
#   ns ~/src/foobar
#
# in both cases (creation and attaching) your terminal tab will get named
# appropriately
#
# the default argument is '.' do
#
#   cd ~/src/foobar
#   ns
#
# works to create a screen named 'foobar' too
#
  system("#{ ScreenProgram } -wipe")

  exec(Screen)

#
  BEGIN {
    require 'fileutils'
    require 'tmpdir'

    Home          = File.expand_path('~')
    Name          = File.basename(File.expand_path(ARGV.shift || '.')).gsub(%r/\W/,'_').squeeze('_').chomp('_')
    Fu            = FileUtils
    Screens       = File.join(Home, '.screens')
    ScreenProgram = `which screen`.strip
    Screen        = File.join(Screens, Name)
    Current       = ENV['Screen']

    FileUtils.mkdir_p(Screens)

    script = <<-__.strip
      #! /usr/bin/env bash

      screen -d -R -S #{ Name.inspect }
    __

    IO.binwrite(Screen, script)

    FileUtils.chmod(0777, Screen)
  }