Requesting support for Ruby 2.0.0

[filbranden]

I have a gem that I maintain that still works on Ruby 2.0 and I'd like to keep it working on that version, so I'd like to request to have it available for testing in GitHub Actions.

Ruby 2.0 is the version of Ruby shipped in the CentOS 7 / RHEL 7 Linux distribution, so it's still somewhat relevant in the real world for another short while...

# ruby --version
ruby 2.0.0p648 (2015-12-16) [x86_64-linux]
# gem --version
2.0.14.1

For now, I've been using a Travis-CI workflow and Travis offers pre-built binaries for Ruby 2.0.0-p648 on Ubuntu 14.04 (https://rubies.travis-ci.org/), but my preference would be to fully migrate all of the CI to GitHub Actions completely, and having Ruby 2.0 available would definitely help with that... It's totally OK if it's only available in a limited number of platforms or versions (e.g. ubuntu-18.04 only is totally fine.)

Let me know if you need any further information from me, or if I can help in any way to get this version up in ruby/setup-ruby. Thanks!

[eregon]

See #133 (comment), I think it's simply not possible to build such old Rubies with recent compilers (and even if they build there would likely be many issues), so Docker images seems the only way.

[eregon]

To be fair, 2.0 seems to be more reasonable than 1.8/1.9, and there is already one build of 2.1.

So if someone wants to try building them with https://github.com/ruby/ruby-builder as suggested #133 (comment), then that could be integrated if it works well enough.

[eregon]

At least 2.0 seems to build fine: https://github.com/ruby/ruby-builder/actions/runs/885253620

[filbranden]

@eregon Awesome! I see you merged that commit, so it's already published in ruby-builder.

So I wrote PR #182 to add it to the list here. Tested it on my gem that I wanted to test on Ruby 2.0 and confirmed the tests are running as expected. Thanks!

BTW, in ruby/ruby-builder@9fa2773 I noticed ruby-2.0.0-p648 is replacing truffleruby-21.1.0... Not sure if that was intended or not... (But maybe this is a "build once" so you don't keep older versions?) In any case, pointing it out here, in case this wasn't intended and you might want to fix it. Cheers.

[eregon]

Released as https://github.com/ruby/setup-ruby/releases/tag/v1.72.0, thanks for the PR and sorry for the rather pessimistic first comment.

Not sure if that was intended or not... (But maybe this is a "build once" so you don't keep older versions?)

It's expected, it persists the builds and only a new versions are built.

[filbranden]

Thanks for actually building it, that was the hard part!

sorry for the rather pessimistic first comment.

No worries at all!