class KubernetesCli < Formula
  desc "Kubernetes command-line interface"
  homepage "https://kubernetes.io/"
  url "https://github.com/kubernetes/kubernetes.git",
      :tag => "v1.9.6",
      :revision => "9f8ebd171479bec0ada837d7ee641dec2f8c6dd1"
  head "https://github.com/kubernetes/kubernetes.git"

  bottle do
    sha256 "27b9f80b2d111d9760726b9499cd14e43b3ea77c5ae59bb5b7117b7c9aa11c53" => :high_sierra
    sha256 "a9719aca8b2c072cbd0e2b5452f73a2510201072803f8e5a4011f8bb56a5344b" => :sierra
    sha256 "c596c95f233be91068f074bbd5878858ad5d8ecd8c6219c24f00b75274067e7f" => :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