require 'formula'

class Lsyncd < Formula
  homepage 'https://github.com/axkibe/lsyncd'
  url 'https://github.com/axkibe/lsyncd/archive/release-2.1.5.tar.gz'
  sha1 '2b8eb169365edc54488a97435bbd39ae4a6731b8'

  depends_on :autoconf
  depends_on :automake
  depends_on 'asciidoc' => :build
  depends_on 'docbook' => :build
  depends_on 'pkg-config' => :build
  depends_on 'lua'

  # This is an artificial requirement, the resource below is incomplete
  depends_on :macos => :lion

  osx_version = `sw_vers -productVersion`.strip
  xnu_headers = {
    "10.7.5" => ['xnu-1699.32.7.tar.gz',  'da3df48952b40ad3b8612c7f639b8bf0f92fb414'],
    "10.8"   => ['xnu-2050.7.9.tar.gz',   '9aaf1e0b0a148ff303577161fecaf3ea6188aa1b'],
    "10.8.1" => ['xnu-2050.9.2.tar.gz',   '2bd58959afc5ac8f2c9fa3d693882acc96b25321'],
    "10.8.2" => ['xnu-2050.18.24.tar.gz', '3a2a0b3629cb215b17aca3bb365b8b10b8b408fe'],
    "10.8.3" => ['xnu-2050.22.13.tar.gz', 'a002806d1e64505c6a98c10af26186454818a9ff'],
    "10.8.4" => ['xnu-2050.24.15.tar.gz', 'a080f28b7385b0cc63f9ba5a07d922d53ea0a4a3'],
    "10.8.5" => ['xnu-2050.48.11.tar.gz', '1f6860148f8231a53a6b393aa1af589cdedfc70c'],
    "10.9"   => ['xnu-2422.1.72.tar.gz',  'c7bdc40396df3c51ece934c0e3b4a19b063ea34c'],
    "10.9.1" => ['xnu-2422.1.72.tar.gz',  'c7bdc40396df3c51ece934c0e3b4a19b063ea34c'],
    "10.9.2" => ['xnu-2422.1.72.tar.gz',  'c7bdc40396df3c51ece934c0e3b4a19b063ea34c'],
  }

  if xnu_headers.key? osx_version
    tarball, checksum = xnu_headers.fetch(osx_version)
    resource 'xnu' do
      url "http://www.opensource.apple.com/tarballs/xnu/#{tarball}"
      sha1 checksum
    end
  end

  def install
    # XNU Headers
    resource('xnu').stage buildpath/'xnu'
    ENV.append 'CPPFLAGS', "-I./xnu"

    # Docbook Catalog
    docbook = Formula["docbook"]
    ENV.append 'XML_CATALOG_FILES', docbook.opt_prefix/'docbook/xml/4.5/catalog.xml'

    # Asciidoc Binary
    a2x = Formula["asciidoc"]
    a2x_path = a2x.bin/'a2x'
    inreplace "Makefile.am", "$(A2X)", a2x_path

    system "autoreconf", "--install"
    system "./configure", "--disable-dependency-tracking",
                          "--with-fsevents", "--without-inotify",
                          "--prefix=#{prefix}"

    system "make"
    system "make", "install"

  end

  test do
    system "lsyncd", "--version"
  end
end