class KubernetesCli < Formula
  desc "Kubernetes command-line interface"
  homepage "https://kubernetes.io/"
  url "https://github.com/kubernetes/kubernetes.git",
      :tag => "v1.10.1",
      :revision => "d4ab47518836c750f9949b9e0d387f20fb92260b"
  head "https://github.com/kubernetes/kubernetes.git"

  bottle do
    sha256 "5b69f34a4c50c771f9d8c97b7812dbf478fa069ff03fde474bb358cba657978b" => :high_sierra
    sha256 "cbb1944906cece22dd07b44a583d1f1ec637b2bc87d8c3db638a8e5ceaaaca84" => :sierra
    sha256 "494c0502d5370a80621b04a9e003c5c89f8623dca3ad8e30fcad7ea9f8d86198" => :el_capitan
  end

  # kubernetes-cli will not support go1.10 until version 1.11.x
  depends_on "go@1.9" => :build

  def install
    ENV["GOPATH"] = buildpath
    arch = MacOS.prefer_64_bit? ? "amd64" : "x86"
    dir = buildpath/"src/k8s.io/kubernetes"
    dir.install buildpath.children - [buildpath/".brew_home"]

    cd dir do
      # Race condition still exists in OSX Yosemite
      # Filed issue: https://github.com/kubernetes/kubernetes/issues/34635
      ENV.deparallelize { system "make", "generated_files" }

      # Make binary
      system "make", "kubectl"
      bin.install "_output/local/bin/darwin/#{arch}/kubectl"

      # Install bash completion
      output = Utils.popen_read("#{bin}/kubectl completion bash")
      (bash_completion/"kubectl").write output

      # Install zsh completion
      output = Utils.popen_read("#{bin}/kubectl completion zsh")
      (zsh_completion/"_kubectl").write output

      prefix.install_metafiles

      # Install man pages
      # Leave this step for the end as this dirties the git tree
      system "hack/generate-docs.sh"
      man1.install Dir["docs/man/man1/*.1"]
    end
  end

  test do
    run_output = shell_output("#{bin}/kubectl 2>&1")
    assert_match "kubectl controls the Kubernetes cluster manager.", run_output

    version_output = shell_output("#{bin}/kubectl version --client 2>&1")
    assert_match "GitTreeState:\"clean\"", version_output
    assert_match stable.instance_variable_get(:@resource).instance_variable_get(:@specs)[:revision], version_output if build.stable?
  end
end