gnupg21.rb

class Gnupg21 < Formula
  desc "GNU Privacy Guard: a free PGP replacement"
  homepage "https://www.gnupg.org/"
  url "ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-2.1.6.tar.bz2"
  mirror "https://www.mirrorservice.org/sites/ftp.gnupg.org/gcrypt/gnupg/gnupg-2.1.6.tar.bz2"
  sha256 "5e599ad542199f3bd733eed2b88a539d1b4c3beda2dbab0ff69f1896f52e92fd"

  bottle do
    sha256 "19c095a0cad8c62047701fea74815335465062e30dfbc258f1f3d867745d4b96" => :yosemite
    sha256 "9d2ca5b007020d43b26eafacb07ac8fe530d72176fc4f199faa73b92c6fa1982" => :mavericks
    sha256 "5b5d9ef88255adb89f68220a70d8627de66dcc82a1c7e8847e9d5efe8ff60c02" => :mountain_lion
  end

  head do
    url "git://git.gnupg.org/gnupg.git"

    depends_on "autoconf" => :build
    depends_on "automake" => :build
    depends_on "libtool" => :build
  end

  option "with-gpgsplit", "Additionally install the gpgsplit utility"

  depends_on "pkg-config" => :build
  depends_on "npth"
  depends_on "gnutls"
  depends_on "homebrew/fuse/encfs" => :optional
  depends_on "libgpg-error"
  depends_on "libgcrypt"
  depends_on "libksba"
  depends_on "libassuan"
  depends_on "pinentry"
  depends_on "libusb-compat" => :recommended
  depends_on "readline" => :optional
  depends_on "gettext"

  conflicts_with "gnupg2",
        :because => "GPG2.1.x is incompatible with the 2.0.x branch."
  conflicts_with "gpg-agent",
        :because => "GPG2.1.x ships an internal gpg-agent which it must use."
  conflicts_with "dirmngr",
        :because => "GPG2.1.x ships an internal dirmngr which it it must use."
  conflicts_with "fwknop",
        :because => "fwknop expects to use a `gpgme` with Homebrew/Homebrew's gnupg2."
  conflicts_with "gpgme",
        :because => "gpgme currently requires 1.x.x or 2.0.x."

  def install
    (var/"run").mkpath

    ENV.append "LDFLAGS", "-lresolv"

    ENV["gl_cv_absolute_stdint_h"] = "#{MacOS.sdk_path}/usr/include/stdint.h"

    args = %W[
      --disable-dependency-tracking
      --disable-silent-rules
      --prefix=#{prefix}
      --sbindir=#{bin}
      --sysconfdir=#{etc}
      --enable-symcryptrun
    ]

    args << "--with-readline=#{Formula["readline"].opt_prefix}" if build.with? "readline"

    if build.head?
      args << "--enable-maintainer-mode"
      system "./autogen.sh", "--force"
      system "automake", "--add-missing"
    end

    # Adjust package name to fit our scheme of packaging both gnupg 1.x and
    # and 2.1.x and gpg-agent separately.
    inreplace "configure" do |s|
      s.gsub! "PACKAGE_NAME='gnupg'", "PACKAGE_NAME='gnupg2'"
      s.gsub! "PACKAGE_TARNAME='gnupg'", "PACKAGE_TARNAME='gnupg2'"
    end

    inreplace "tools/gpgkey2ssh.c", "gpg --list-keys", "gpg2 --list-keys"

    system "./configure", *args

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

    bin.install "tools/gpgsplit" => "gpgsplit2" if build.with? "gpgsplit"

    # Conflicts with a manpage from the 1.x formula, and
    # gpg-zip isn't installed by this formula anyway
    rm man1/"gpg-zip.1"
    # Move more man conflict out of 1.x's way.
    mv share/"doc/gnupg2/FAQ", share/"doc/gnupg2/FAQ21"
    mv share/"doc/gnupg2/examples/gpgconf.conf", share/"doc/gnupg2/examples/gpgconf21.conf"
    mv share/"info/gnupg.info", share/"info/gnupg21.info"
    mv "#{man7}/gnupg.7", "#{man7}/gnupg21.7"
  end

  def caveats; <<-EOS.undent
    Once you run the new gpg2 binary you will find it incredibly
    difficult to go back to using `gnupg2` from Homebrew/Homebrew.
    The new 2.1.x moves to a new keychain format that can't be
    and won't be understood by the 2.0.x branch or lower.

    If you use this `gnupg21` formula for a while and decide
    you don't like it, you will lose the keys you've imported since.
    For this reason, we strongly advise that you make a backup
    of your `~/.gnupg` directory.

    For full details of the changes, please visit:
      https://www.gnupg.org/faq/whats-new-in-2.1.html

    If you are upgrading to gnupg21 from gnupg2 you should execute:
      `killall gpg-agent && gpg-agent --daemon`
    After install. See:
      https://github.com/Homebrew/homebrew-versions/issues/681
    EOS
  end

  test do
    system "#{bin}/gpgconf"
  end
end