class Libarchive < Formula
  desc "Multi-format archive and compression library"
  homepage "https://www.libarchive.org"
  url "https://www.libarchive.org/downloads/libarchive-3.3.1.tar.gz"
  sha256 "29ca5bd1624ca5a007aa57e16080262ab4379dbf8797f5c52f7ea74a3b0424e7"

  bottle do
    cellar :any
    sha256 "c292cbb509f53a599811a8bdcd656eeccc5f04613f087eaa353c2e36773f7ed7" => :sierra
    sha256 "c2d7ccd488fc0df27bc60ee245fba03dd239e6a81e36f1d163870d54419c2cf2" => :el_capitan
    sha256 "3e7cd1b774b991b8810026d71dfd4ed84b5850bf3ac7bfb321469cfab61c5fc2" => :yosemite
  end

  keg_only :provided_by_osx

  depends_on "xz" => :recommended
  depends_on "lz4" => :optional
  depends_on "lzop" => :optional

  def install
    system "./configure",
           "--prefix=#{prefix}",
           "--without-lzo2",    # Use lzop binary instead of lzo2 due to GPL
           "--without-nettle",  # xar hashing option but GPLv3
           "--without-xml2",    # xar hashing option but tricky dependencies
           "--without-openssl", # mtree hashing now possible without OpenSSL
           "--with-expat"       # best xar hashing option

    system "make", "install"

    # Just as apple does it.
    ln_s bin/"bsdtar", bin/"tar"
    ln_s bin/"bsdcpio", bin/"cpio"
    ln_s man1/"bsdtar.1", man1/"tar.1"
    ln_s man1/"bsdcpio.1", man1/"cpio.1"
  end

  test do
    (testpath/"test").write("test")
    system bin/"bsdtar", "-czvf", "test.tar.gz", "test"
    assert_match /test/, shell_output("#{bin}/bsdtar -xOzf test.tar.gz")
  end
end