class CargoCompletion < Formula
  desc "Bash and Zsh completion for Cargo"
  homepage "https://github.com/rust-lang/cargo"
  url "https://github.com/rust-lang/cargo/archive/0.16.0.tar.gz"
  version "20170227.0.16.0"
  sha256 "5f7a7669daea152e84bbf9e6d4ee0ccc6c8e49dd0042f546ba80629bbc0191a4"

  head "https://github.com/rust-lang/cargo.git"

  bottle :unneeded

  def install
    bash_completion.install "src/etc/cargo.bashcomp.sh" => "cargo"
    zsh_completion.install "src/etc/_cargo"
  end

  test do
    # we need to define a dummy 'cargo' command to force the script to define
    # the completion function
    assert_match "-F _cargo",
      shell_output("cargo() { true;} && source #{bash_completion}/cargo && complete -p cargo")
  end
end