class Zstd < Formula
  desc "Zstandard is a real-time compression algorithm"
  homepage "http://zstd.net/"
  url "https://github.com/facebook/zstd/archive/v1.3.4.tar.gz"
  sha256 "92e41b6e8dd26bbd46248e8aa1d86f1551bc221a796277ae9362954f26d605a9"

  bottle do
    cellar :any
    sha256 "ebc051190f4c96ce8df6bc1cc9638402b31472a5054716ac18eb0eece19c53ef" => :high_sierra
    sha256 "d5909c9a1c8b4ccb85496472104625d1ef9613e21400ff3e59c9c5a8859d6da7" => :sierra
    sha256 "2dc1d15fd5f7177aca8790c60ad016d689968e93384f752552a291eac72a6819" => :el_capitan
  end

  option "without-pzstd", "Build without parallel (de-)compression tool"

  depends_on "cmake" => :build

  def install
    system "make", "install", "PREFIX=#{prefix}/"

    if build.with? "pzstd"
      system "make", "-C", "contrib/pzstd", "googletest"
      system "make", "-C", "contrib/pzstd", "PREFIX=#{prefix}"
      bin.install "contrib/pzstd/pzstd"
    end
  end

  test do
    assert_equal "hello\n",
      pipe_output("#{bin}/zstd | #{bin}/zstd -d", "hello\n", 0)

    if build.with? "pzstd"
      assert_equal "hello\n",
        pipe_output("#{bin}/pzstd | #{bin}/pzstd -d", "hello\n", 0)
    end
  end
end