class Bundler::Fetcher

def cis
  env_cis = {
    "TRAVIS" => "travis",
    "CIRCLECI" => "circle",
    "SEMAPHORE" => "semaphore",
    "JENKINS_URL" => "jenkins",
    "BUILDBOX" => "buildbox",
    "GO_SERVER_URL" => "go",
    "SNAP_CI" => "snap",
    "CI_NAME" => ENV["CI_NAME"],
    "CI" => "ci"
  }
  env_cis.find_all {|env, _| ENV[env] }.map {|_, ci| ci }
end