Installing the latest bundler causes google-protobuf to be installed as a different platform and failed to be resolved at runtime

[ntkme]

Log from GitHub Actions that with truffleruby-head it is using bundled bundler from truffleruby and everything was fine:

  /Users/runner/.rubies/truffleruby-head/bin/ruby --version
  truffleruby 22.2.0-dev-07df635e, like ruby 3.0.3, GraalVM CE Native [x86_64-darwin]

  Using Bundler 2 shipped with truffleruby-head (head versions do not always support the latest Bundler release)

  /home/runner/.rubies/truffleruby-head/bin/bundle install --jobs 4
......
  Fetching google-protobuf 3.21.3
  Installing google-protobuf 3.21.3 with native extensions

When using truffleruby stable release ruby/setup-ruby action will install the latest bundler version and it causes a strange problem. At first, instead of treating truffleruby as platform: ruby, it now platform: x86_64-linux, this behavior itself is already very problematic, as native extension may have been compiled with SSE3, and such native extension will just crash and need to be re-compiled from source using platform: ruby.

  /home/runner/.rubies/truffleruby-22.2.0/bin/ruby --version
  truffleruby 22.2.0, like ruby 3.0.3, GraalVM CE Native [x86_64-linux]

  /home/runner/.rubies/truffleruby-22.2.0/bin/gem install bundler -v ~> 2.0
  Successfully installed bundler-2.3.18

  /home/runner/.rubies/truffleruby-22.2.0/bin/bundle install --jobs 4
  Fetching google-protobuf 3.21.3 (x86_64-linux)
  Installing google-protobuf 3.21.3 (x86_64-linux)

After gems are installed, as a side effect of being treated as a different platform, running the following code also gives an unexpected error due to inconsistent platforms:

Gem::Dependency.new('google-protobuf').to_spec

Gem::MissingSpecVersionError: Could not find 'google-protobuf' (>= 0) - did find: [google-protobuf-3.21.3-x86_64-linux]

[ntkme]

Related: ruby/setup-ruby#358

[eregon]

It's rubygems/rubygems#5691 it should be fixed in the upcoming Bundler 2.3.19: rubygems/rubygems#5691 (comment)

[ntkme]

Thanks. I will lock it to 2.3.16 for now.

[eregon]

I'll fix ruby/setup-ruby#358 ASAP so users run less into this.

[eregon]

Thanks for the report!

[eregon]

ruby/setup-ruby#358 fixed, so at least setup-ruby users should not run into this with the default bundler input.