class Mbedtls < Formula
  desc "Cryptographic & SSL/TLS library"
  homepage "https://tls.mbed.org/"
  url "https://tls.mbed.org/download/mbedtls-2.2.1-apache.tgz"
  sha256 "6ddd5ca2e7dfb43d2fd750400856246fc1c98344dabf01b1594eb2f9880ef7ce"
  head "https://github.com/ARMmbed/mbedtls.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "154cf41b17b358385fe502306695022a32bb8ae014c9f549281684475ba827bb" => :el_capitan
    sha256 "6e4ae0210116bae3d4b9d516d48213f894b24e6d8d6ba9cb97d681fa435d241a" => :yosemite
    sha256 "61e46dded8bda3817a6d61701b9095b2eca26fabd5dbccb2c125a24f989c66eb" => :mavericks
  end

  depends_on "cmake" => :build

  def install
    # "Comment this macro to disable support for SSL 3.0"
    inreplace "include/mbedtls/config.h" do |s|
      s.gsub! "#define MBEDTLS_SSL_PROTO_SSL3", "//#define MBEDTLS_SSL_PROTO_SSL3"
    end

    system "cmake", *std_cmake_args
    system "make"
    system "make", "install"

    # Why does Mbedtls ship with a "Hello World" executable. Let's remove that.
    rm_f "#{bin}/hello"
    # Rename benchmark & selftest, which are awfully generic names.
    mv bin/"benchmark", bin/"mbedtls-benchmark"
    mv bin/"selftest", bin/"mbedtls-selftest"
    # Demonstration files shouldn't be in the main bin
    libexec.install "#{bin}/mpi_demo"
  end

  test do
    (testpath/"testfile.txt").write("This is a test file")
    # Don't remove the space between the checksum and filename. It will break.
    expected_checksum = "e2d0fe1585a63ec6009c8016ff8dda8b17719a637405a4e23c0ff81339148249  testfile.txt"
    assert_equal expected_checksum, shell_output("#{bin}/generic_sum SHA256 testfile.txt").strip
  end
end