class Bazel < Formula
  desc "Google's own build tool"
  homepage "https://bazel.build/"
  url "https://github.com/bazelbuild/bazel/releases/download/0.4.2/bazel-0.4.2-dist.zip"
  sha256 "8e6f41252abadcdb2cc7a07f910ec4b45fb12c46f0a578672c6a186c7efcdb36"
  head "https://github.com/bazelbuild/bazel.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "3787bc81081acf05c6267d8af42c2810ed6d4eae7b173006e7225b4e48d6f452" => :sierra
    sha256 "0e76a2a36d71c8ab1d002b5ac027f1d484d04d8ca27d409bde9391114d8b35a4" => :el_capitan
    sha256 "a0b4d071f7117174b54b3230937579762a189c6d70a868cdbd233c99e6e3be12" => :yosemite
  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"
    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.undent
      public class ProjectRunner {
        public static void main(String args[]) {
          System.out.println("Hi!");
        }
      }
    EOS

    (testpath/"BUILD").write <<-EOS.undent
      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