Add `drb`, `mutex_m` and `base64` that are bundled gem candidates for Ruby 3.4 #48907

yahonda · 2023-08-08T12:15:00Z

Motivation / Background

This commit adds drb, mutex_m and base64 to activesupport/activesupport.gemspec because 3.3.0dev shows warnings if bundled gem candidates are required like mutex_m will be not part of the default gems since Ruby 3.4.0. Add it to your Gemfile.

Detail

Example

$ ruby -v ; ruby generic_main.rb
ruby 3.3.0dev (2023-08-07T23:09:02Z master 0e5da05a32) [x86_64-linux]
Fetching https://github.com/rails/rails.git
Resolving dependencies...
Fetching gem metadata from https://rubygems.org/.......
/home/yahonda/.rbenv/versions/trunk/lib/ruby/gems/3.3.0+0/bundler/gems/rails-2942958827f1/activesupport/lib/active_support/notifications/fanout.rb:3: warning: mutex_m will be not part of the default gems since Ruby 3.4.0. Add it to your Gemfile.
/home/yahonda/.rbenv/versions/trunk/lib/ruby/gems/3.3.0+0/bundler/gems/rails-2942958827f1/activesupport/lib/active_support/message_encryptor.rb:4: warning: base64 will be not part of the default gems since Ruby 3.4.0. Add it to your Gemfile.
generic_main.rb:16: warning: drb will be not part of the default gems since Ruby 3.4.0. Add it to your inline Gemfile.
$

generic_main.rb

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails", branch: "main"
end

require "active_support"
require "minitest/autorun"
# These gems will be bundled gems in Ruby 3.4
require "drb"
require "base64"
require "mutex_m"

These gems are chosen as follows.

Bundled gems candidates for Ruby 3.4

$ ruby -v ; ruby -e 'pp Gem::BUNDLED_GEMS::SINCE.select { |k,v| v == "3.4.0" }'
ruby 3.3.0dev (2023-08-07T23:09:02Z master 0e5da05a32) [x86_64-linux]
{"abbrev"=>"3.4.0",
 "observer"=>"3.4.0",
 "getoptlong"=>"3.4.0",
 "resolv-replace"=>"3.4.0",
 "rinda"=>"3.4.0",
 "nkf"=>"3.4.0",
 "syslog"=>"3.4.0",
 "drb"=>"3.4.0",
 "mutex_m"=>"3.4.0",
 "csv"=>"3.4.0",
 "base64"=>"3.4.0"}
$

`drb`, `mutex_m` and `base64` are required by Rails

"drb"

$ git grep 'require "drb"'
activesupport/lib/active_support/testing/parallelization.rb:require "drb"
activesupport/lib/active_support/testing/parallelization/server.rb:require "drb"

"mutex_m"

$ git grep 'require "mutex_m"'
actionpack/lib/action_controller/metal/params_wrapper.rb:    require "mutex_m"
activerecord/lib/active_record/attribute_methods.rb:require "mutex_m"
activerecord/lib/active_record/relation/delegation.rb:require "mutex_m"
activesupport/lib/active_support/notifications/fanout.rb:require "mutex_m"

"base64" usage

$ git grep 'require "base64"'
actioncable/Rakefile:require "base64"
actionmailer/lib/action_mailer/inline_preview_interceptor.rb:require "base64"
actionpack/lib/action_controller/metal/http_authentication.rb:require "base64"
actionview/Rakefile:require "base64"
activerecord/lib/active_record/encryption/message_serializer.rb:require "base64"
activerecord/lib/active_record/fixture_set/render_context.rb:require "base64"
activerecord/test/cases/encryption/message_serializer_test.rb:require "base64"
activesupport/lib/active_support/message_encryptor.rb:require "base64"
activesupport/lib/active_support/message_verifier.rb:require "base64"
activesupport/lib/active_support/xml_mini.rb:require "base64"
railties/test/application/mailer_previews_test.rb:require "base64"