class Bup < Formula
  desc "Backup tool"
  homepage "https://github.com/bup/bup"
  url "https://github.com/bup/bup/archive/0.30.tar.gz"
  sha256 "5238f045c220278a165fff528ea32288f2752db2e1ac15704e849b71cddda0b2"
  revision 1
  head "https://github.com/bup/bup.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "adbfc42873e138509a8aea5f79dd9a983d6436965f72768778e257885b45efd0" => :catalina
    sha256 "cdf1d01a823625ebbf364e5c40570dfa710a457824a17a6cf661fa85331f2e63" => :mojave
    sha256 "38422b58cf36f8769783612149f2aef56ca11cc80fb368086b07fecc9959b6a7" => :high_sierra
  end

  depends_on "pandoc" => :build
  uses_from_macos "python@2"

  resource "certifi" do
    url "https://files.pythonhosted.org/packages/41/bf/9d214a5af07debc6acf7f3f257265618f1db242a3f8e49a9b516f24523a6/certifi-2019.11.28.tar.gz"
    sha256 "25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
  end

  resource "singledispatch" do
    url "https://files.pythonhosted.org/packages/d9/e9/513ad8dc17210db12cb14f2d4d190d618fb87dd38814203ea71c87ba5b68/singledispatch-3.4.0.3.tar.gz"
    sha256 "5b06af87df13818d14f08a028e42f566640aef80805c3b50c5056b086e3c2b9c"
  end

  resource "six" do
    url "https://files.pythonhosted.org/packages/94/3e/edcf6fef41d89187df7e38e868b2dd2182677922b600e880baad7749c865/six-1.13.0.tar.gz"
    sha256 "30f610279e8b2578cab6db20741130331735c781b56053c59c4076da27f06b66"
  end

  resource "tornado" do
    url "https://files.pythonhosted.org/packages/30/78/2d2823598496127b21423baffaa186b668f73cd91887fcef78b6eade136b/tornado-6.0.3.tar.gz"
    sha256 "c845db36ba616912074c5b1ee897f8e0124df269468f25e4fe21fe72f6edd7a9"
  end

  def install
    ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages"
    resources.each do |r|
      r.stage do
        system "python", *Language::Python.setup_install_args(libexec/"vendor")
      end
    end

    # set AC_CPP_PROG due to Mojave issue, see https://github.com/Homebrew/brew/issues/5153
    system "make", "AC_CPP_PROG=xcrun cpp"
    system "make", "install", "DESTDIR=#{prefix}", "PREFIX="

    mv bin/"bup", libexec/"bup.py"
    (bin/"bup").write_env_script libexec/"bup.py", :PYTHONPATH => ENV["PYTHONPATH"]
  end

  test do
    system bin/"bup", "init"
    assert_predicate testpath/".bup", :exist?
  end
end