class Bazel < Formula
  desc "Google's own build tool"
  homepage "https://bazel.build/"
  url "https://github.com/bazelbuild/bazel/releases/download/0.8.0/bazel-0.8.0-dist.zip"
  sha256 "aa840321d056abd3c6be10c4a1e98a64f9f73fff9aa89c468dae8c003974a078"

  bottle do
    cellar :any_skip_relocation
    sha256 "d520b2179836981c0caa8bf6f30c0af358a04ed25531f07a723091a323512850" => :high_sierra
    sha256 "23f5efc1f93950b8a66fed135e6e4ffd492df6664455c2ee35ff92fb927499d3" => :sierra
    sha256 "348245044d0eae3182d0521b28469cedf0a9de40286a1efbe728ede0c85b1f3c" => :el_capitan
  end

  depends_on :java => "1.8"
  depends_on :macos => :yosemite

  def install
    ENV["EMBED_LABEL"] = "#{version}-homebrew"
    # Force Bazel ./compile.sh to put its temporary files in the buildpath
    ENV["BAZEL_WRKDIR"] = buildpath/"work"

    system "./compile.sh"
    system "./output/bazel", "--output_user_root", buildpath/"output_user_root",
           "build", "scripts:bash_completion"

    bin.install "scripts/packages/bazel.sh" => "bazel"
    bin.install "output/bazel" => "bazel-real"
    bin.env_script_all_files(libexec/"bin", Language::Java.java_home_env("1.8"))

    bash_completion.install "bazel-bin/scripts/bazel-complete.bash"
    zsh_completion.install "scripts/zsh_completion/_bazel"
  end

  test do
    touch testpath/"WORKSPACE"

    (testpath/"ProjectRunner.java").write <<~EOS
      public class ProjectRunner {
        public static void main(String args[]) {
          System.out.println("Hi!");
        }
      }
    EOS

    (testpath/"BUILD").write <<~EOS
      java_binary(
        name = "bazel-test",
        srcs = glob(["*.java"]),
        main_class = "ProjectRunner",
      )
    EOS

    system bin/"bazel", "build", "//:bazel-test"
    system "bazel-bin/bazel-test"
  end
end