class Cmake < Formula
  desc "Cross-platform make"
  homepage "https://www.cmake.org/"
  url "https://cmake.org/files/v3.12/cmake-3.12.2.tar.gz"
  sha256 "0f97485799e51a7070cc11494f3e02349b0fc3a24cc12b082e737bf67a0581a4"
  head "https://cmake.org/cmake.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "467775398419045ade07ae6f406fcc41299094f1c2d94eeda1b192eda2cb7e90" => :mojave
    sha256 "852ff3e17fd4b18dad1b321043a2e89020bed0e8b1cabcaf1ca93f454c38e182" => :high_sierra
    sha256 "10dd90b3aedb656af4ef26f53ff62a6f3b34391fc4774f5704959f643535cb09" => :sierra
    sha256 "14ad6305d2b795cabe082779eea3875591ddb3b3c881a6056f9c792243fe7135" => :el_capitan
  end

  option "with-completion", "Install Bash completion (Has potential problems with system bash)"

  depends_on "sphinx-doc" => :build

  # The `with-qt` GUI option was removed due to circular dependencies if
  # CMake is built with Qt support and Qt is built with MySQL support as MySQL uses CMake.
  # For the GUI application please instead use `brew cask install cmake`.

  needs :cxx11

  def install
    ENV.cxx11 if MacOS.version < :mavericks

    # Avoid the following compiler error:
    # SecKeychain.h:102:46: error: shift expression '(1853123693 << 8)' overflows
    ENV.append_to_cflags "-fpermissive" if MacOS.version <= :lion

    args = %W[
      --prefix=#{prefix}
      --no-system-libs
      --parallel=#{ENV.make_jobs}
      --datadir=/share/cmake
      --docdir=/share/doc/cmake
      --mandir=/share/man
      --sphinx-build=#{Formula["sphinx-doc"].opt_bin}/sphinx-build
      --sphinx-man
      --system-zlib
      --system-bzip2
      --system-curl
    ]

    # There is an existing issue around macOS & Python locale setting
    # See https://bugs.python.org/issue18378#msg215215 for explanation
    ENV["LC_ALL"] = "en_US.UTF-8"

    system "./bootstrap", *args, "--", "-DCMAKE_BUILD_TYPE=Release"
    system "make"
    system "make", "install"

    if build.with? "completion"
      cd "Auxiliary/bash-completion/" do
        bash_completion.install "ctest", "cmake", "cpack"
      end
    end

    elisp.install "Auxiliary/cmake-mode.el"
  end

  test do
    (testpath/"CMakeLists.txt").write("find_package(Ruby)")
    system bin/"cmake", "."
  end
end