gistfile1.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
#

  detach = "#{ Screen } -d #{ ENV['Screen'] }" if ENV['Screen']
  wipe = "#{ Screen } -wipe"
  env = "Screen=#{ Name }"
  attach = "#{ Screen } -d -r #{ Name}"
  new = "#{ env } #{ Screen } -S #{ Name }"
  command = "#{ wipe }; #{ attach } || #{ new }"

  exec(command)



  BEGIN {
    require 'fileutils'
    require 'tmpdir'

    def home
      home =
        catch :home do
          ["HOME", "USERPROFILE"].each do |key|
            throw(:home, ENV[key]) if ENV[key]
          end
          if ENV["HOMEDRIVE"] and ENV["HOMEPATH"]
            throw(:home, "#{ ENV['HOMEDRIVE'] }:#{ ENV['HOMEPATH'] }")
          end
          File.expand_path("~") rescue(File::ALT_SEPARATOR ? "C:/" : "/")
        end
      File.expand_path home
    end

    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']

    begin
      FileUtils.ln(ScreenProgram, Screen)
    rescue Errno::EEXIST
      raise unless test(?e, Screen)
    end
    
    Fu.mkdir_p Screens
  }