My current ruby script to update vim bundles... can't remember whose blog I got the starter from at this point.

update_bundles.rb

#!/usr/bin/env ruby

git_bundles = [
  "https://github.com/kien/ctrlp.vim",
  "git://github.com/tpope/vim-fugitive.git",
#  "git://github.com/tpope/vim-rails.git",
#  "git://github.com/tpope/vim-abolish.git",
#  "https://github.com/rizzatti/dash.vim.git",
  "https://github.com/wavded/vim-stylus.git",
  "git://github.com/slim-template/vim-slim.git",
#  "https://github.com/rhysd/vim-crystal.git",
  "https://github.com/mileszs/ack.vim.git",
#  "git://github.com/tpope/vim-cucumber.git",
#  "https://github.com/vim-scripts/AnsiEsc.vim.git",
  "https://github.com/fatih/vim-go.git",
#  "https://github.com/astashov/vim-ruby-debugger.git",
  "https://github.com/wakatime/vim-wakatime.git",
#  "https://github.com/pthrasher/conqueterm-vim.git",
#  "https://github.com/skwp/vim-ruby-conque.git",
	"https://github.com/mattn/gist-vim",
	"https://github.com/gregsexton/gitv",
	"https://github.com/tomasr/molokai",
  "https://github.com/elixir-lang/vim-elixir.git",
	"https://github.com/juvenn/mustache.vim",
  "https://github.com/jceb/vim-orgmode.git",
#  "https://github.com/marcus/rsense.git",
#	"https://github.com/vim-scripts/taglist.vim",
	"https://github.com/tpope/vim-bundler",
	"https://github.com/kchmck/vim-coffee-script",
	"https://github.com/altercation/vim-colors-solarized",
	"git://github.com/sickill/vim-pasta.git",
  "git://github.com/effkay/argonaut.vim.git",
# BORKDED	"https://github.com/tpope/vim-rake",
# DEFER	"https://github.com/benmills/vimux",
	"https://github.com/tpope/vim-pathogen.git",
  "git://github.com/ervandew/supertab.git",
# DEFER  "git://github.com/godlygeek/tabular.git",
#  "git://github.com/hallison/vim-rdoc.git",
#  "git://github.com/msanders/snipmate.vim.git",
  "git://github.com/pangloss/vim-javascript.git",
  "git://github.com/scrooloose/nerdtree.git",
  "git://github.com/timcharper/textile.vim.git",
  "git://github.com/tpope/vim-git.git",
  "git://github.com/tpope/vim-haml.git",
  "git://github.com/tpope/vim-markdown.git",
  "git://github.com/tpope/vim-repeat.git",
  "git://github.com/tpope/vim-surround.git",
  "git://github.com/tpope/vim-vividchalk.git",
#  BROKEN ? "git://github.com/tsaleh/taskpaper.vim.git",
#  BROKEN ? "git://github.com/tsaleh/vim-matchit.git",
  "git://github.com/tsaleh/vim-shoulda.git",
#  "git://github.com/tsaleh/vim-tcomment.git",
#  "git://github.com/tsaleh/vim-tmux.git",
  "git://github.com/vim-ruby/vim-ruby.git",
#  "git://github.com/vim-scripts/Gist.vim.git",
#  "https://github.com/vim-scripts/paredit.vim.git",
  "git://github.com/vim-scripts/Colour-Sampler-Pack.git",
  "https://github.com/stephenmckinney/vim-solarized-powerline.git",
  "https://github.com/Lokaltog/powerline",
  "https://github.com/Lokaltog/powerline-fonts",
]


vim_org_scripts = [
  ["IndexedSearch", "7062",  "plugin"],
  ["jquery",        "12107", "syntax"],
  ["ctags", "2529", "plugin"]
#  ["XMLFolding", "1438", "plugin"]

]

other_vim_scripts = [
#  ["http://www.complang.org/ragel/ragel.vim", "syntax"],
  ["https://github.com/vim-scripts/applescript.vim.git", "syntax"],
  ["https://github.com/vim-scripts/groovy.vim.git", "syntax"]
]

require 'fileutils'
require 'open-uri'

bundles_dir = File.join(File.dirname(__FILE__), "bundle")
FileUtils.cd(bundles_dir)

puts "trashing everything (lookout!)"
Dir["*"].each {|d| FileUtils.rm_rf d }

git_bundles.each do |url|
	dir = url.split('/').last.sub(/\.git$/, '')
	puts "unpacking #{url} into #{dir}"
	`git clone #{url} #{dir}`
	FileUtils.rm_rf(File.join(dir, ".git"))
end

vim_org_scripts.each do |name, script_id, script_type|
  puts "downloading #{name}"
  local_file = File.join(name, script_type, "#{name}.vim")
  FileUtils.mkdir_p(File.dirname(local_file))
  File.open(local_file, "w") do |file|
    file << open("http://www.vim.org/scripts/download_script.php?src_id=#{script_id}").read.sub("\x0d","")
  end
end

other_vim_scripts.each do |location, script_type|
  file_name = File.basename(location)
  puts "downloading #{file_name}"
  local_file = File.join(file_name.split('.').first, script_type, file_name)
  FileUtils.mkdir_p(File.dirname(local_file))
  File.open(local_file, "w") do |file|
    file << open(location).read
  end
end