Update default ruby version to 3.2 on linux/macos ruby builds (#32010)

* Use ruby 3.2 in macos and linux ruby builds

grpc.gemspec

@@ -36,12 +36,12 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'bundler',            '>= 1.9'
   s.add_development_dependency 'facter',             '~> 2.4'
   s.add_development_dependency 'logging',            '~> 2.0'
-  s.add_development_dependency 'simplecov',          '~> 0.14.1'
+  s.add_development_dependency 'simplecov',          '~> 0.22'
   s.add_development_dependency 'rake',               '~> 13.0'
   s.add_development_dependency 'rake-compiler',      '<= 1.1.1'
   s.add_development_dependency 'rake-compiler-dock', '~> 1.2'
   s.add_development_dependency 'rspec',              '~> 3.6'
-  s.add_development_dependency 'rubocop',            '~> 0.49.1'
+  s.add_development_dependency 'rubocop',            '~> 1.41.0'
   s.add_development_dependency 'signet',             '~> 0.7'
   s.add_development_dependency 'googleauth',         '>= 0.5.1', '< 0.10'
 

src/ruby/end2end/grpc_class_init_client.rb

@@ -66,6 +66,7 @@ def run_default_test(test_proc)
   thd.join
 end
 
+# rubocop:disable Metrics/CyclomaticComplexity
 def get_test_proc(grpc_class)
   case grpc_class
   when 'channel'
@@ -117,6 +118,7 @@ def get_test_proc(grpc_class)
     fail "bad --grpc_class=#{grpc_class} param"
   end
 end
+# rubocop:enable Metrics/CyclomaticComplexity
 
 def main
   grpc_class = ''

src/ruby/lib/grpc/generic/bidi_call.rb

@@ -139,6 +139,7 @@ module GRPC
     end
 
     # set_output_stream_done is relevant on client-side
+    # rubocop:disable Metrics/PerceivedComplexity
     def write_loop(requests, is_client: true, set_output_stream_done: nil)
       GRPC.logger.debug('bidi-write-loop: starting')
       count = 0
@@ -182,6 +183,7 @@ module GRPC
     ensure
       set_output_stream_done.call if is_client
     end
+    # rubocop:enable Metrics/PerceivedComplexity
 
     # Provides an enumerator that yields results of remote reads
     def read_loop(set_input_stream_done, is_client: true)

templates/grpc.gemspec.template

@@ -38,12 +38,12 @@
     s.add_development_dependency 'bundler',            '>= 1.9'
     s.add_development_dependency 'facter',             '~> 2.4'
     s.add_development_dependency 'logging',            '~> 2.0'
-    s.add_development_dependency 'simplecov',          '~> 0.14.1'
+    s.add_development_dependency 'simplecov',          '~> 0.22'
     s.add_development_dependency 'rake',               '~> 13.0'
     s.add_development_dependency 'rake-compiler',      '<= 1.1.1'
     s.add_development_dependency 'rake-compiler-dock', '~> 1.2'
     s.add_development_dependency 'rspec',              '~> 3.6'
-    s.add_development_dependency 'rubocop',            '~> 0.49.1'
+    s.add_development_dependency 'rubocop',            '~> 1.41.0'
     s.add_development_dependency 'signet',             '~> 0.7'
     s.add_development_dependency 'googleauth',         '>= 0.5.1', '< 0.10'
 

tools/internal_ci/helper_scripts/prepare_build_linux_ruby_artifact_rc

@@ -28,10 +28,11 @@ set +ex
 # but we want to exit if there's a failure
 set -e
 
-echo "rvm install ruby-2.5.7"
-time rvm install ruby-2.5.7
-echo "rvm --default use ruby-2.5.7"
-rvm --default use ruby-2.5.7
+RUBY_VERSION=3.2.0
+echo "Installing ruby-${RUBY_VERSION}"
+time rvm install "ruby-${RUBY_VERSION}"
+echo "Setting default ruby version."
+rvm use "$RUBY_VERSION" --default
 
 # restore the original echo and exit on failure behavior
 set -ex
@@ -40,7 +41,7 @@ set -ex
 ruby --version
 
 # Bundler is required for grpc ruby artifact build.
-gem install bundler -v 1.17.3
+gem install bundler -v 2.4
 
 # log gem versions for easier debugging if things go wrong
 gem list || true

tools/internal_ci/helper_scripts/prepare_build_macos_rc

@@ -80,13 +80,13 @@ then
   set +x
   source $HOME/.rvm/scripts/rvm
 
-  for RUBY_VERSION in 2.5.0 2.7.0 3.0.0 3.1.0; do
+  RUBY_VERSION=3.2.0
   echo "Installing ruby-${RUBY_VERSION}"
   time rvm install "ruby-${RUBY_VERSION}"
-  done;
   echo "Setting default ruby version."
-  rvm use 2.7.0 --default
+  rvm use "$RUBY_VERSION" --default
   echo "Updating osx-ssl-certs."
+  gem install bundler -v 2.4
   rvm osx-ssl-certs status all
   rvm osx-ssl-certs update all