class Awscli < Formula
  include Language::Python::Virtualenv

  desc "Official Amazon AWS command-line interface"
  homepage "https://aws.amazon.com/cli/"
  # awscli should only be updated every 10 releases on multiples of 10
  url "https://github.com/aws/aws-cli/archive/1.16.10.tar.gz"
  sha256 "3082daafec77885043a9eab25f03a641d6d14cedcb10e2cf49ae86a95a939dca"
  head "https://github.com/aws/aws-cli.git", :branch => "develop"

  bottle do
    cellar :any_skip_relocation
    sha256 "f4a08767ed2c88b68c4a0920e0c26d4a11e0f15da8c2ada114988b4717b047e0" => :mojave
    sha256 "f74796b947d2ed4bdc665054a0de72e2c4641b056fe190081a1a0e5706ebb7a5" => :high_sierra
    sha256 "ee00c838d75b622cc80df1fbd4b9e331d6d6820cf63031e785c61f3531715367" => :sierra
    sha256 "97b011092a64395ebfbd03cf0d749bb198f008bb4c09d38a5d12db9aaa9bdfe4" => :el_capitan
  end

  # Some AWS APIs require TLS1.2, which system Python doesn't have before High
  # Sierra
  depends_on "python"

  def install
    venv = virtualenv_create(libexec, "python3")
    system libexec/"bin/pip", "install", "-v", "--no-binary", ":all:",
                              "--ignore-installed", buildpath
    system libexec/"bin/pip", "uninstall", "-y", "awscli"
    venv.pip_install_and_link buildpath
    pkgshare.install "awscli/examples"

    rm Dir["#{bin}/{aws.cmd,aws_bash_completer,aws_zsh_completer.sh}"]
    bash_completion.install "bin/aws_bash_completer"
    zsh_completion.install "bin/aws_zsh_completer.sh"
    (zsh_completion/"_aws").write <<~EOS
      #compdef aws
      _aws () {
        local e
        e=$(dirname ${funcsourcetrace[1]%:*})/aws_zsh_completer.sh
        if [[ -f $e ]]; then source $e; fi
      }
    EOS
  end

  def caveats; <<~EOS
    The "examples" directory has been installed to:
      #{HOMEBREW_PREFIX}/share/awscli/examples
  EOS
  end

  test do
    assert_match "topics", shell_output("#{bin}/aws help")
  end
end