class CrystalLang < Formula
  desc "Fast and statically typed, compiled language with Ruby-like syntax"
  homepage "http://crystal-lang.org/"
  url "https://github.com/manastech/crystal/archive/0.12.0.tar.gz"
  sha256 "918bad9b906fe252f3f66685487892ad7c13a31135aa5874ac1e52ea399328e3"
  head "https://github.com/manastech/crystal.git"

  bottle do
    sha256 "3c6704cfff8e64b40c1446a02ac881e7c24c08bca005856b465df57896389f37" => :el_capitan
    sha256 "5befdddc3c7625074f7146d4d97e2a96f05c357ef6439c507d2d38a8794d5ce4" => :yosemite
    sha256 "8a06de0e04c0e4dc61925e43dc960a31e1329776e33905ce2e36df366ae143af" => :mavericks
  end

  option "without-release", "Do not build the compiler in release mode"
  option "without-shards", "Do not include `shards` dependency manager"

  depends_on "libevent"
  depends_on "bdw-gc"
  depends_on "llvm" => :build
  depends_on "libyaml" if build.with?("shards")

  resource "boot" do
    url "https://github.com/manastech/crystal/releases/download/0.11.1/crystal-0.11.1-1-darwin-x86_64.tar.gz"
    sha256 "117af7bc7a5031ff77dba443d65e885c5f99189eac9fed7b35ca4e99f2a3b51f"
  end

  resource "shards" do
    url "https://github.com/ysbaddaden/shards/archive/v0.6.1.tar.gz"
    sha256 "8e7d179a499a2fca895b534c6204e2e34828e6a645e48f83f08fbefcd6a03951"
  end

  def install
    (buildpath/"boot").install resource("boot")

    if build.head?
      ENV["CRYSTAL_CONFIG_VERSION"] = `git rev-parse --short HEAD`.strip
    else
      ENV["CRYSTAL_CONFIG_VERSION"] = version
    end

    ENV["CRYSTAL_CONFIG_PATH"] = prefix/"src:libs"
    ENV.append_path "PATH", "boot/bin"

    if build.with? "release"
      system "make", "crystal", "release=true"
    else
      system "make", "deps"
      (buildpath/".build").mkpath
      system "bin/crystal", "build", "-o", ".build/crystal", "src/compiler/crystal.cr"
    end

    if build.with? "shards"
      resource("shards").stage do
        system buildpath/"bin/crystal", "build", "-o", buildpath/".build/shards", "src/shards.cr"
      end
      bin.install ".build/shards"
    end

    bin.install ".build/crystal"
    prefix.install "src"
    bash_completion.install "etc/completion.bash" => "crystal"
    zsh_completion.install "etc/completion.zsh" => "crystal"
  end

  test do
    system "#{bin}/crystal", "eval", "puts 1"
  end
end