gistfile1.rbx

#!/usr/bin/env ruby
# vim:set fileencoding=utf-8 filetype=ruby
$KCODE = 'u'
require 'webrick/httpserver'

s = WEBrick::HTTPServer.new(:Port=>3030)
s.mount_proc("/deploy") do |req, res|
  IO.popen("cap deploy"){|x| res.body = x.read }
  res.status = ($? == 0 ? WEBrick::HTTPStatus::OK : WEBrick::HTTPStatus::BadRequest).code
end
trap("INT"){ s.shutdown }
s.start