protobuf@3.7 3.7.1 (new formula)

Formula/protobuf@3.7.rb

@@ -0,0 +1,73 @@
+class ProtobufAT37 < Formula
+  desc "Protocol buffers (Google's data interchange format)"
+  homepage "https://github.com/protocolbuffers/protobuf/"
+  url "https://github.com/protocolbuffers/protobuf.git",
+      :tag      => "v3.7.1",
+      :revision => "6973c3a5041636c1d8dc5f7f6c8c1f3c15bc63d6"
+
+  keg_only :versioned_formula
+
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "libtool" => :build
+  depends_on "python" => [:build, :test]
+  depends_on "python@2" => [:build, :test]
+
+  resource "six" do
+    url "https://files.pythonhosted.org/packages/dd/bf/4138e7bfb757de47d1f4b6994648ec67a51efe58fa907c1e11e350cddfca/six-1.12.0.tar.gz"
+    sha256 "d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+  end
+
+  def install
+    # Don't build in debug mode. See:
+    # https://github.com/Homebrew/homebrew/issues/9279
+    # https://github.com/protocolbuffers/protobuf/blob/5c24564811c08772d090305be36fae82d8f12bbe/configure.ac#L61
+    ENV.prepend "CXXFLAGS", "-DNDEBUG"
+    ENV.cxx11
+
+    system "./autogen.sh"
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}", "--with-zlib"
+    system "make"
+    system "make", "check"
+    system "make", "install"
+
+    # Install editor support and examples
+    doc.install "editors", "examples"
+
+    ENV.append_to_cflags "-I#{include}"
+    ENV.append_to_cflags "-L#{lib}"
+
+    ["python2", "python3"].each do |python|
+      resource("six").stage do
+        system python, *Language::Python.setup_install_args(libexec)
+      end
+      chdir "python" do
+        system python, *Language::Python.setup_install_args(libexec),
+                       "--cpp_implementation"
+      end
+
+      version = Language::Python.major_minor_version python
+      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
+
+  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=."
+    system "python2.7", "-c", "import google.protobuf"
+    system "python3", "-c", "import google.protobuf"
+  end
+end