Add ruby 2.7 to mac binary packages

Rakefile

@@ -130,7 +130,7 @@ task 'gem:native' do
         "invoked on macos with ruby #{RUBY_VERSION}. The ruby macos artifact " \
         "build should be running on ruby 2.5."
     end
-    system "rake cross native gem RUBY_CC_VERSION=2.6.0:2.5.0:2.4.0:2.3.0 V=#{verbose} GRPC_CONFIG=#{grpc_config}"
+    system "rake cross native gem RUBY_CC_VERSION=2.7.0:2.6.0:2.5.0:2.4.0:2.3.0 V=#{verbose} GRPC_CONFIG=#{grpc_config}"
   else
     require 'rake_compiler_dock'
 

tools/distrib/build_ruby_environment_macos.sh

@@ -19,7 +19,7 @@ rm -rf ~/.rake-compiler
 
 CROSS_RUBY=$(mktemp tmpfile.XXXXXXXX)
 
-curl https://raw.githubusercontent.com/rake-compiler/rake-compiler/v1.0.3/tasks/bin/cross-ruby.rake > "$CROSS_RUBY"
+curl https://raw.githubusercontent.com/rake-compiler/rake-compiler/v1.1.0/tasks/bin/cross-ruby.rake > "$CROSS_RUBY"
 
 # See https://github.com/grpc/grpc/issues/12161 for verconf.h patch details
 patch "$CROSS_RUBY" << EOF
@@ -49,6 +49,19 @@ EOF
 
 MAKE="make -j8"
 
+set +x # rvm commands are very verbose
+source ~/.rvm/scripts/rvm
+rvm use 2.7.0
+set -x
+ruby --version | grep 'ruby 2.7.0'
+for v in 2.7.0 ; do
+  ccache -c
+  rake -f "$CROSS_RUBY" cross-ruby VERSION="$v" HOST=x86_64-darwin11 MAKE="$MAKE"
+done
+set +x
+rvm use 2.5.0
+set -x
+ruby --version | grep 'ruby 2.5.0'
 for v in 2.6.0 2.5.0 2.4.0 2.3.0 2.2.2 ; do
   ccache -c
   rake -f "$CROSS_RUBY" cross-ruby VERSION="$v" HOST=x86_64-darwin11 MAKE="$MAKE"
@@ -56,4 +69,3 @@ done
 
 sed 's/x86_64-darwin-11/universal-darwin/' ~/.rake-compiler/config.yml > "$CROSS_RUBY"
 mv "$CROSS_RUBY" ~/.rake-compiler/config.yml
-

tools/internal_ci/helper_scripts/prepare_build_macos_rc

@@ -39,14 +39,16 @@ then
   set +ex  # rvm script is very verbose and exits with errorcode
   # Advice from https://github.com/Homebrew/homebrew-cask/issues/8629#issuecomment-68641176
   brew update && brew upgrade brew-cask && brew cleanup && brew cask cleanup
-  rvm --debug requirements ruby-2.5.0
-  source $HOME/.rvm/scripts/rvm
   set -e  # rvm commands are very verbose
-  time rvm install 2.5.0
+  source $HOME/.rvm/scripts/rvm
+  for RUBY_VERSION in 2.5.0 2.7.0; do
+    rvm --debug requirements "ruby-${RUBY_VERSION}"
+    time rvm install "$RUBY_VERSION"
+    time gem install bundler -v 1.17.3 --no-document
+    time gem install rake-compiler --no-document
+  done;
   rvm use 2.5.0 --default
-  time gem install bundler -v 1.17.3 --no-ri --no-doc
-  time gem install cocoapods --version 1.3.1 --no-ri --no-doc
-  time gem install rake-compiler --no-ri --no-doc
+  time gem install cocoapods --version 1.3.1 --no-document
   rvm osx-ssl-certs status all
   rvm osx-ssl-certs update all
   set -ex