Load rails stacktraces into quickfix

trace.rb

#!/usr/bin/env ruby

require 'tempfile'

file = Tempfile.new('rails-trace');

ARGF.each do |line|
  fields = line.chomp.strip.split(/\s+/, 3)
  next unless fields.size >= 3
  if fields[1] =~ /\(.+\)/
    bundlepath = `bundle show #{fields[0]}`.chomp
    path = "#{bundlepath}/#{fields[2]}"
  else
    path = fields[2]
  end
  file.write("#{path}\n")
end
file.close
exec("vim -q #{file.path}")