Ruby 2.6.3 support

[yahonda]

I'm testing GitHub Actions for our internal Rails application using Ruby 2.6.3.
It looks like the latest version of Ruby 2.6 GitHub Actions supports is 2.6.2. I'd like to know how to run Ruby 2.6.3.

• .github/workflows/ruby.yml

name: Ruby

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@master
    - name: Set up Ruby 2.6
      uses: actions/setup-ruby@v1
      with:
        version: 2.6.x
    - name: Build and test with Rake
      run: |
        gem install bundler
        bundle install --jobs 4 --retry 3
        bundle exec rake

• Gemfile (partial one to show Ruby 2.6.3 is specified)

# frozen_string_literal: true

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

ruby '2.6.3'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 6.0.0.rc2'

Actual behavior

Your Ruby version is 2.6.2, but your Gemfile specified 2.6.3

Expected behavior

Ruby 2.6.3 is installed by version: 2.6.x

[eregon]

Same here, I expected 2.6.3 to be available and used by version: 2.6.x.
For 2.4.x and 2.5.x, it seems the latest Ruby releases are correctly used (2.4.6 and 2.5.5).

Is there a list of available Ruby versions for GitHub actions?

[damccorm]

I'd like to know how to run Ruby 2.6.3

Right now, we don't have a way to download/install ruby since there's not a well defined distro (at least that I know of) where we can get prebuilt packages, so we're reliant on the versions installed in the tool cache.

With that said, you can do this using a run: step - linux/mac steps here - https://www.ruby-lang.org/en/documentation/installation/, windows steps here - https://stackoverflow.com/a/22959385

I expected 2.6.3 to be available

@kaylangan are we expecting the newest version of Ruby to be added soon? Guessing we're just a step behind here since that's the most recent release

Is there a list of available Ruby versions for GitHub actions?

You can list available versions by running run: ls $RUNNER_TOOL_CACHE/Ruby. Right now, for ubuntu I'm seeing:
2.3.7
2.4.6
2.5.5
2.6.2

[yahonda]

Thanks for the update. If I understand your advice correctly,
Installing Ruby followed by the instruction https://www.ruby-lang.org/en/documentation/installation/#apt insalls Ruby 2.5.1.

Your Ruby version is 2.5.1, but your Gemfile specified 2.6.3

I think this is an expected version from Ubuntu point of view.

https://packages.ubuntu.com/disco/ruby-full
https://packages.ubuntu.com/disco/ruby

$ git diff e3b0e72785f0f3ea7724de247ee0b182140e0bb5...52d160ddece05abd64511bb2650e07850184991a
diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index b61895f..4b72cfd 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -9,12 +9,9 @@ jobs:

     steps:
     - uses: actions/checkout@master
-    - name: Set up Ruby 2.6
-      uses: actions/setup-ruby@v1
-      with:
-        version: 2.6.x
     - name: Build and test with Rake
       run: |
-        gem install bundler
-        bundle install --jobs 4 --retry 3
+        sudo apt-get install ruby-full
+        sudo gem install bundler -v 1.17.3
+        sudo bundle install --jobs 4 --retry 3
         bundle exec rake
$

We have another CI running Ruby 2.6.3 and testing GitHub Actions.
Then I'd like to wait for Ruby 2.6.3 available at GitHub Actions.

[eregon]

Would a solution here be to add Ruby 2.6.3 to the tool cache? I think that would be the most straightforward approach.
I also noticed that on Windows Ruby 2.4.5 is used (the latest release of 2.4.x is 2.4.6).

How are versions in the hostedtoolcache added? Are they compiled from source and shared across runners of the same virtual environment (OS, OS version, arch)?

FWIW I can recommend ruby-install or ruby-build to build Rubies conveniently and in a simple straightforward way. Building from source is also easy on Linux and macOS.
For Windows, there are prebuilt Ruby binaries.

The Ruby version provided by the operating system is often outdated and usually only one version is available. I would think most Rubyists expect to have all the most recent Ruby versions available in CI (presently 2.4.6, 2.5.5, 2.6.3).

[damccorm]

Would a solution here be to add Ruby 2.6.3 to the tool cache?

Yeah, sorry if I wasn't clear in my initial response - that is the right solution and something I think we will do.

How are versions in the hostedtoolcache added? Are they compiled from source and shared across runners of the same virtual environment (OS, OS version, arch)?

I think so. We regenerate our images frequently and as part of that process we update the tool cache with some prebuilt tools. @kaylangan would know more about that process.

[kieranklaassen]

Would love to get 2.6.3 in here!

[kaylangan]

We're currently in the process of updating Ruby 2.6.x to 2.6.3 across the board. The changes are in review. The update should go out in the next week or so.

How are versions in the hostedtoolcache added? Are they compiled from source and shared across runners of the same virtual environment (OS, OS version, arch)?

For Windows, we use rubyinstaller. For the other images, we compile from source.

The Ruby version provided by the operating system is often outdated and usually only one version is available. I would think most Rubyists expect to have all the most recent Ruby versions available in CI (presently 2.4.6, 2.5.5, 2.6.3).

Agreed, we need to update the versions that we offer in the cache. The last time we updated the latest versions weren't available from rubyinstaller but they are now. We'll get that in.

[dentarg]

@damccorm

Right now, we don't have a way to download/install ruby since there's not a well defined distro (at least that I know of) where we can get prebuilt packages

Have you looked into somehow utilizing the work that is being done by the Docker community? https://github.com/docker-library/ruby that is

@kaylangan

We're currently in the process of updating Ruby 2.6.x to 2.6.3 across the board. The changes are in review. The update should go out in the next week or so.

For Windows, we use rubyinstaller. For the other images, we compile from source.

Is these efforts open source? If not, have you considered having them open source?

[damccorm]

Have you looked into somehow utilizing the work that is being done by the Docker community? https://github.com/docker-library/ruby that is

I hadn't - that might be a helpful resource, thanks for the pointer!

From a glance, it looks like those are only Linux packages though, and that they're actually building Ruby for their images, not releasing a Linux Ruby package. In general, we want to avoid building Ruby as part of this action because that tends to just take too long (that's a consistent choice across our setup-* actions). Note that we do offer the choice to consume those ruby images in container actions though

[kaylangan]

Is these efforts open source? If not, have you considered having them open source?

It's not currently open source but we are considering it.

[eregon]

@yahonda It seems 2.6.3 was added now (e.g.: https://github.com/ruby/spec/pull/683/checks?check_run_id=202172160), I think we can close this issue.

[yahonda]

I have confirmed Ruby 2.6.3 is available at GitHub Actions.

• Sample repository
  https://github.com/yahonda/rep8

• Ruby 2.6.3 is used
  https://github.com/yahonda/rep8/commit/4c84776907849fd8cbdd3ac21d0c44a81100b333/checks#step:4:61

[yahonda]

Closing this issue. Thanks for the support.