vim environment cleaner-upper

vim.rb

#!/usr/bin/ruby

# scrubs the vim environment to prevent segfaults because builtin ruby
# tries to load rubygems from rvm

THIS_FILE = File.expand_path(__FILE__)

def find_vim
  ENV['PATH'].split(':').each do |p|
    path = File.expand_path('vim', p)
    next if path == THIS_FILE
    return path if File.exists?(path)
  end
  raise "Fuck! couldn't find a vim that's not us!"
end

ENV.delete_if do |k,v|
  k =~ /^(rvm_|RUBY|RI$)/
end

ENV['PATH'] = "#{ENV['HOME']}/local/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/X11/bin"
ENV['SKIP_RVM'] = '1'

exec(find_vim, *ARGV)