From 6d699be11dc8ad88067b395412984831b9cbaacf Mon Sep 17 00:00:00 2001
From: apolcyn <apolcyn@google.com>
Date: Tue, 15 Jun 2021 22:12:44 -0700
Subject: [PATCH] Set XDS user agent in ruby via macros (#26268)

* Set XDS user agent in ruby via macros

* Add quotes to macros

* Fix typo in macro setting

* remove no-op macro setting in build file

* Fix templae
---
 src/ruby/ext/grpc/extconf.rb                  |   2 +
 .../src/ruby/ext/grpc/extconf.rb.template     | 122 ++++++++++++++++++
 2 files changed, 124 insertions(+)
 create mode 100644 templates/src/ruby/ext/grpc/extconf.rb.template

diff --git a/src/ruby/ext/grpc/extconf.rb b/src/ruby/ext/grpc/extconf.rb
index bb05b53d241..8c8e8e5ab43 100644
--- a/src/ruby/ext/grpc/extconf.rb
+++ b/src/ruby/ext/grpc/extconf.rb
@@ -56,6 +56,8 @@ if RUBY_PLATFORM =~ /darwin/
 end
 
 ENV['CPPFLAGS'] = '-DGPR_BACKWARDS_COMPATIBILITY_MODE'
+ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_NAME_SUFFIX="\"RUBY\"" '
+ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX="\"1.39.0.dev\"" '
 
 output_dir = File.expand_path(RbConfig::CONFIG['topdir'])
 grpc_lib_dir = File.join(output_dir, 'libs', grpc_config)
diff --git a/templates/src/ruby/ext/grpc/extconf.rb.template b/templates/src/ruby/ext/grpc/extconf.rb.template
new file mode 100644
index 00000000000..1130ba8bbbc
--- /dev/null
+++ b/templates/src/ruby/ext/grpc/extconf.rb.template
@@ -0,0 +1,122 @@
+%YAML 1.2
+--- |
+  # Copyright 2015 gRPC authors.
+  #
+  # Licensed under the Apache License, Version 2.0 (the "License");
+  # you may not use this file except in compliance with the License.
+  # You may obtain a copy of the License at
+  #
+  #     http://www.apache.org/licenses/LICENSE-2.0
+  #
+  # Unless required by applicable law or agreed to in writing, software
+  # distributed under the License is distributed on an "AS IS" BASIS,
+  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  # See the License for the specific language governing permissions and
+  # limitations under the License.
+  
+  require 'etc'
+  require 'mkmf'
+  
+  windows = RUBY_PLATFORM =~ /mingw|mswin/
+  bsd = RUBY_PLATFORM =~ /bsd/
+  
+  grpc_root = File.expand_path(File.join(File.dirname(__FILE__), '../../../..'))
+  
+  grpc_config = ENV['GRPC_CONFIG'] || 'opt'
+  
+  ENV['MACOSX_DEPLOYMENT_TARGET'] = '10.10'
+  
+  if ENV['AR'].nil? || ENV['AR'].size == 0
+      ENV['AR'] = RbConfig::CONFIG['AR']
+  end
+  if ENV['CC'].nil? || ENV['CC'].size == 0
+      ENV['CC'] = RbConfig::CONFIG['CC']
+  end
+  if ENV['CXX'].nil? || ENV['CXX'].size == 0
+      ENV['CXX'] = RbConfig::CONFIG['CXX']
+  end
+  if ENV['LD'].nil? || ENV['LD'].size == 0
+      ENV['LD'] = ENV['CC']
+  end
+  
+  if RUBY_PLATFORM =~ /darwin/
+    ENV['AR'] = 'libtool'
+    ENV['ARFLAGS'] = '-o'
+   end
+  
+  ENV['EMBED_OPENSSL'] = 'true'
+  ENV['EMBED_ZLIB'] = 'true'
+  ENV['EMBED_CARES'] = 'true'
+  
+  ENV['ARCH_FLAGS'] = RbConfig::CONFIG['ARCH_FLAG']
+  if RUBY_PLATFORM =~ /darwin/
+    if RUBY_PLATFORM =~ /arm64/
+      ENV['ARCH_FLAGS'] = '-arch arm64'
+    else
+      ENV['ARCH_FLAGS'] = '-arch i386 -arch x86_64'
+    end
+  end
+  
+  ENV['CPPFLAGS'] = '-DGPR_BACKWARDS_COMPATIBILITY_MODE'
+  ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_NAME_SUFFIX="\"RUBY\"" '
+  ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX="\"${settings.ruby_version.ruby()}\"" '
+  
+  output_dir = File.expand_path(RbConfig::CONFIG['topdir'])
+  grpc_lib_dir = File.join(output_dir, 'libs', grpc_config)
+  ENV['BUILDDIR'] = output_dir
+  
+  unless windows
+    puts 'Building internal gRPC into ' + grpc_lib_dir
+    nproc = 4
+    nproc = Etc.nprocessors * 2 if Etc.respond_to? :nprocessors
+    make = bsd ? 'gmake' : 'make'
+    system("#{make} -j#{nproc} -C #{grpc_root} #{grpc_lib_dir}/libgrpc.a CONFIG=#{grpc_config} Q=")
+    exit 1 unless $? == 0
+  end
+  
+  $CFLAGS << ' -I' + File.join(grpc_root, 'include')
+  
+  ext_export_file = File.join(grpc_root, 'src', 'ruby', 'ext', 'grpc', 'ext-export')
+  $LDFLAGS << ' -Wl,--version-script="' + ext_export_file + '.gcc"' if RUBY_PLATFORM =~ /linux/
+  $LDFLAGS << ' -Wl,-exported_symbols_list,"' + ext_export_file + '.clang"' if RUBY_PLATFORM =~ /darwin/
+  
+  $LDFLAGS << ' ' + File.join(grpc_lib_dir, 'libgrpc.a') unless windows
+  if grpc_config == 'gcov'
+    $CFLAGS << ' -O0 -fprofile-arcs -ftest-coverage'
+    $LDFLAGS << ' -fprofile-arcs -ftest-coverage -rdynamic'
+  end
+  
+  if grpc_config == 'dbg'
+    $CFLAGS << ' -O0 -ggdb3'
+  end
+  
+  $LDFLAGS << ' -Wl,-wrap,memcpy' if RUBY_PLATFORM =~ /linux/
+  $LDFLAGS << ' -static-libgcc -static-libstdc++' if RUBY_PLATFORM =~ /linux/
+  $LDFLAGS << ' -static' if windows
+  
+  $CFLAGS << ' -std=c99 '
+  $CFLAGS << ' -Wall '
+  $CFLAGS << ' -Wextra '
+  $CFLAGS << ' -pedantic '
+  
+  output = File.join('grpc', 'grpc_c')
+  puts 'Generating Makefile for ' + output
+  create_makefile(output)
+  
+  strip_tool = RbConfig::CONFIG['STRIP']
+  strip_tool = 'strip -x' if RUBY_PLATFORM =~ /darwin/
+  
+  if grpc_config == 'opt'
+    File.open('Makefile.new', 'w') do |o|
+      o.puts 'hijack: all strip'
+      o.puts
+      File.foreach('Makefile') do |i|
+        o.puts i
+      end
+      o.puts
+      o.puts 'strip: $(DLLIB)'
+      o.puts "\t$(ECHO) Stripping $(DLLIB)"
+      o.puts "\t$(Q) #{strip_tool} $(DLLIB)"
+    end
+    File.rename('Makefile.new', 'Makefile')
+  end