class Dc3dd < Formula
  desc "Patched GNU dd that is intended for forensic acquisition of data"
  homepage "https://sourceforge.net/projects/dc3dd/"
  url "https://downloads.sourceforge.net/project/dc3dd/dc3dd/7.2.646/dc3dd%207.2.646/dc3dd-7.2.646.zip",
      :using => :nounzip
  sha256 "c4e325e5cbdae49e3855b0849ea62fed17d553428724745cea53fe6d91fd2b7f"
  revision 1

  bottle do
    sha256 "1b509e74c2a309676eefcd37fd82de1f4646395123e0cbdb38715598e2ea6fef" => :high_sierra
    sha256 "2f7f30890920cddd8b35c5b0f0c0c27fd3f4d3528e18156f8ae86ed9b144b9aa" => :sierra
    sha256 "9455b48212360afa374b22a5387604d310abb5dbfa90818d8745753b22d8a367" => :el_capitan
  end

  depends_on "gettext"

  resource "gettext-pm" do
    url "https://cpan.metacpan.org/authors/id/P/PV/PVANDRY/gettext-1.07.tar.gz"
    mirror "http://search.cpan.org/CPAN/authors/id/P/PV/PVANDRY/gettext-1.07.tar.gz"
    sha256 "909d47954697e7c04218f972915b787bd1244d75e3bd01620bc167d5bbc49c15"
  end

  def install
    # Regular zip files created by 7-zip can upset /usr/bin/unzip by reporting a
    # non-zero size for dirs; the workaround below avoids a p7zip dependency
    # Reported 32 Oct 2016 https://sourceforge.net/p/dc3dd/bugs/14/
    zip_file = cached_download.basename(".zip")
    Utils.popen_read("unzip #{zip_file}.zip")
    buildpath.install (buildpath/zip_file).children

    ENV.prepend_create_path "PERL5LIB", buildpath/"gettext-pm/lib/perl5"
    resource("gettext-pm").stage do
      inreplace "Makefile.PL", "$libs = \"-lintl\"",
                               "$libs = \"-L/usr/local/opt/gettext/lib -lintl\""
      system "perl", "Makefile.PL", "INSTALL_BASE=#{buildpath}/gettext-pm"
      system "make"
      system "make", "install"
    end

    # Fixes error: 'Illegal instruction: 4'; '%n used in a non-immutable format string' on 10.13
    # Patch comes from gnulib upstream (see https://sourceforge.net/p/dc3dd/bugs/17/)
    inreplace "lib/vasnprintf.c",
              "# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))",
              "# if !(defined __APPLE__ && defined __MACH__)"

    chmod 0555, ["build-aux/install-sh", "configure"]

    args = %W[--disable-debug
              --disable-dependency-tracking
              --prefix=#{prefix}
              --infodir=#{info}]

    # Check for stpncpy is broken, and the replacement fails to compile
    # on Lion and newer; see https://github.com/Homebrew/homebrew/issues/21510
    args << "gl_cv_func_stpncpy=yes" if MacOS.version >= :lion
    system "./configure", *args
    system "make"
    system "make", "install"
    prefix.install %w[Options_Reference.txt Sample_Commands.txt]
  end

  test do
    system bin/"dc3dd", "--help"
  end
end