Vim Formula with Ruby & Python support for OS X

vim.rb

require 'formula'

class Vim < Formula
  homepage 'http://www.vim.org/'
  version '7.3.666'

  url 'https://vim.googlecode.com/hg/', :revision => '1e22adc6176e'
  head 'https://vim.googlecode.com/hg/'

  def ruby_bin
    File.join(ENV['HOME'], '.rvm/rubies', `rvm list default string`.strip, 'bin/ruby')
  end

  def ruby_lib
    ruby_bin.sub("/bin/ruby", "/lib")
  end

  def install
    options = [
      "--prefix=#{prefix}",
      "--mandir=#{man}",
      '--enable-gui=no',
      '--without-x',
      '--disable-nls',
      '--enable-multibyte',
      '--with-tlib=ncurses',
      '--enable-pythoninterp',
      '--enable-rubyinterp=yes',
      "--with-ruby-command=#{ruby_bin}",
      '--with-features=huge'
    ]

    system "./configure", *options

    inreplace 'src/auto/config.mk' do |s|
      s.change_make_var! "LDFLAGS", "-L. -arch x86_64 -L#{ruby_lib} -L#{prefix}/lib"
    end

    ENV.append "LDFLAGS", "-arch x86_64 -L#{ruby_lib}"

    system 'make'
    system 'make install'
    system "cp src/vim #{prefix}/bin"
  end
end

def ruby_bin
    File.join(ENV['HOME'], '.rvm/rubies', `rvm list default string`.strip, 'bin/ruby')
end