protobuf 3.5.2 (new formula)

Formula/protobuf@3.5.rb

@@ -0,0 +1,108 @@
+class ProtobufAT35 < Formula
+  desc "Protocol buffers (Google's data interchange format)"
+  homepage "https://github.com/google/protobuf/"
+  url "https://github.com/google/protobuf/archive/v3.5.2.tar.gz"
+  sha256 "4ffd420f39f226e96aebc3554f9c66a912f6cad6261f39f194f16af8a1f6dab2"
+
+  keg_only :versioned_formula
+
+  # this will double the build time approximately if enabled
+  option "with-test", "Run build-time check"
+  option "without-python@2", "Build without python2 support"
+
+  deprecated_option "with-check" => "with-test"
+  deprecated_option "without-python" => "with-python@2"
+  deprecated_option "with-python3" => "with-python"
+
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "libtool" => :build
+  depends_on "python@2" => :recommended
+  depends_on "python" => :optional
+
+  resource "six" do
+    url "https://files.pythonhosted.org/packages/16/d8/bc6316cf98419719bd59c91742194c111b6f2e85abac88e496adefaf7afe/six-1.11.0.tar.gz"
+    sha256 "70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
+  end
+
+  # Upstream's autogen script fetches this if not present
+  # but does no integrity verification & mandates being online to install.
+  resource "gmock" do
+    url "https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/googlemock/gmock-1.7.0.zip"
+    mirror "https://dl.bintray.com/homebrew/mirror/gmock-1.7.0.zip"
+    sha256 "26fcbb5925b74ad5fc8c26b0495dfc96353f4d553492eb97e85a8a6d2f43095b"
+  end
+
+  needs :cxx11
+
+  def install
+    # Don't build in debug mode. See:
+    # https://github.com/Homebrew/homebrew/issues/9279
+    # https://github.com/google/protobuf/blob/5c24564811c08772d090305be36fae82d8f12bbe/configure.ac#L61
+    ENV.prepend "CXXFLAGS", "-DNDEBUG"
+    ENV.cxx11
+
+    (buildpath/"gmock").install resource("gmock")
+    system "./autogen.sh"
+
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}", "--with-zlib"
+    system "make"
+    system "make", "check" if build.with?("test") || build.bottle?
+    system "make", "install"
+
+    # Install editor support and examples
+    doc.install "editors", "examples"
+
+    Language::Python.each_python(build) do |python, version|
+      resource("six").stage do
+        system python, *Language::Python.setup_install_args(libexec)
+      end
+      chdir "python" do
+        ENV.append_to_cflags "-I#{include}"
+        ENV.append_to_cflags "-L#{lib}"
+        args = Language::Python.setup_install_args libexec
+        args << "--cpp_implementation"
+        system python, *args
+      end
+      site_packages = "lib/python#{version}/site-packages"
+      pth_contents = "import site; site.addsitedir('#{libexec/site_packages}')\n"
+      (prefix/site_packages/"homebrew-protobuf.pth").write pth_contents
+    end
+  end
+
+  def caveats; <<~EOS
+    Editor support and examples have been installed to:
+      #{doc}
+  EOS
+  end
+
+  test do
+    testdata = <<~EOS
+      syntax = "proto3";
+      package test;
+      message TestCase {
+        string name = 4;
+      }
+      message Test {
+        repeated TestCase case = 1;
+      }
+    EOS
+    (testpath/"test.proto").write testdata
+    system bin/"protoc", "test.proto", "--cpp_out=."
+    if build.with? "python@2"
+      site_packages = Pathname.new("#{ENV["HOME"]}/Library/Python/2.7/lib/python/site-packages")
+      protobuf_pth = lib/"python2.7/site-packages/homebrew-protobuf.pth"
+      site_packages.realpath.install_symlink protobuf_pth
+      system "python2.7", "-c", "import google.protobuf"
+    end
+    if build.with? "python"
+      xy = Language::Python.major_minor_version "python3"
+      site_packages = Pathname.new("#{ENV["HOME"]}/Library/Python/#{xy}/lib/python/site-packages")
+      protobuf_pth = lib/"python#{xy}/site-packages/homebrew-protobuf.pth"
+      site_packages.mkpath
+      site_packages.realpath.install_symlink protobuf_pth
+      system "python3", "-c", "import google.protobuf"
+    end
+  end
+end