class Hub < Formula
  desc "Add GitHub support to git on the command-line"
  homepage "https://hub.github.com/"
  url "https://github.com/github/hub/archive/v2.7.1.tar.gz"
  sha256 "83fac8b47b2f56da1e7366688df4bd0eeb5fa20bde5d3de39792ea1cc1d15cd4"
  head "https://github.com/github/hub.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "4b0e49df68b45b892549264c605cf16541e2c25a02351980a2893619cc915b23" => :mojave
    sha256 "3c82fa2b5081e5b35870055a6a465be36884ccf4a5b92e23b3a36433346d0182" => :high_sierra
    sha256 "9473b772485a2c4a7e4f23c64eafcd4afab3b53e847c49beff926111a43b2f01" => :sierra
  end

  depends_on "go" => :build

  # System Ruby uses old TLS versions no longer supported by RubyGems.
  depends_on "ruby" => :build if MacOS.version <= :sierra

  def install
    ENV["GOPATH"] = buildpath
    (buildpath/"src/github.com/github/hub").install buildpath.children
    cd "src/github.com/github/hub" do
      begin
        deleted = ENV.delete "SDKROOT"
        ENV["GEM_HOME"] = buildpath/"gem_home"
        system "gem", "install", "bundler:1.16.0"
        ENV.prepend_path "PATH", buildpath/"gem_home/bin"
        system "make", "man-pages"
      ensure
        ENV["SDKROOT"] = deleted
      end
      system "make", "install", "prefix=#{prefix}"

      prefix.install_metafiles

      bash_completion.install "etc/hub.bash_completion.sh"
      zsh_completion.install "etc/hub.zsh_completion" => "_hub"
      fish_completion.install "etc/hub.fish_completion" => "hub.fish"
    end
  end

  test do
    system "git", "init"
    %w[haunted house].each { |f| touch testpath/f }
    system "git", "add", "haunted", "house"
    system "git", "commit", "-a", "-m", "Initial Commit"
    assert_equal "haunted\nhouse", shell_output("#{bin}/hub ls-files").strip
  end
end